CN222777075U

CN222777075U - Hair dryers and hair care appliances

Info

Publication number: CN222777075U
Application number: CN202421196232.4U
Authority: CN
Inventors: 马加华; 刘志平; 韩鹏
Original assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd; Suzhou Kingclean Precision Machinery Co Ltd; Jiangsu Kingclean Intelligent Appliance Co Ltd
Current assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd; Jiangsu Kingclean Intelligent Appliance Co Ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2025-04-22
Anticipated expiration: 2034-05-29

Abstract

The utility model relates to a tuyere and a hair care appliance. The air nozzle comprises a shell, a switching piece, an operating assembly and an elastic piece, wherein the air nozzle is used for air intake through a first inlet of a first air duct and a second inlet of a second air duct and air outlet of the first air duct and the second air duct, an inner lining cover is arranged in the shell, the switching piece is rotationally connected in the shell around an axis and has a first rotating position, a second rotating position and a third rotating position relative to the inner lining cover, the switching piece closes the first inlet in the first rotating position, the switching piece closes the second inlet in the second rotating position, and the operating assembly comprises the elastic piece and is used for always applying clockwise torque to the switching piece when the switching piece is between the first rotating position and the third rotating position, and the elastic piece is also used for always applying anticlockwise torque to the switching piece when the switching piece is between the second rotating position and the third rotating position. The structure of the operating component of the air nozzle and the hair care appliance is simpler.

Description

Air nozzle and hair care appliance

Technical Field

The utility model relates to the technical field of household appliances, in particular to a tuyere and a hair care appliance.

Background

Hair care appliances are commonly used for drying or styling hair. With the continuous development of technology, hair care appliances with double air ducts are also on the market at present. Specifically, hair care implement can include main part and tuyere, and the main part is through the air intake that sets up on the tuyere to the tuyere air feed, and the tuyere is inside to be contained two independent wind channels, operating unit and switching piece, and operating unit not only needs to drive the switching piece and switches between two working positions, still needs to lock the switching piece in two different working positions, when the switching piece reaches two working positions, can open the intercommunication of air intake and two wind channels respectively to the air outlet air-out of control two independent wind channels to the tuyere. However, the prior art hair care device has a problem that the structure of the operation assembly is complicated.

Disclosure of utility model

Accordingly, there is a need for a tuyere and hair care appliance having a relatively simple structure of operating components.

A first aspect of an embodiment of the present application provides a tuyere, including:

A first air channel and a second air channel are formed in the shell, the air inlet of the air nozzle is used for air inlet through a first inlet of the first air channel and a second inlet of the second air channel, air is discharged through outlets of the first air channel and the second air channel, and a lining cover is arranged in the shell;

The switching piece is rotationally connected in the shell around an axis and is provided with a first rotating position, a second rotating position and a third rotating position which is positioned between the first rotating position and the second rotating position relative to the lining cover;

The operation assembly comprises an elastic piece which is respectively connected with the switching piece and the lining cover;

The elastic member is used for always applying a clockwise torque to the switching member when the switching member is between the first rotation position and the third rotation position, and is also used for always applying a counterclockwise torque to the switching member when the switching member is between the second rotation position and the third rotation position.

In one embodiment, the elastic member is a torsion spring, which includes a torsion spring main body, a first connecting arm, and a second connecting arm;

The first connecting arm is connected to the lining cover, and the second connecting arm is connected to the switching piece.

In one embodiment, the first connecting arm and the second connecting arm extend from the end of the torsion spring body to the radial outer side of the torsion spring body, and the first connecting arm and the second connecting arm have a preset included angle.

In one embodiment, the switching piece comprises a switching shaft and a transmission disc connected to one end of the switching shaft, wherein one end of the switching shaft, which is away from the transmission disc, and the transmission disc are both rotatably connected to the inner wall of the casing around an axis;

The ends of the first connecting arm and the second connecting arm are respectively provided with a first mounting ring and a second mounting ring;

The lining cover and the transmission disc are arranged opposite to each other, and a first mounting column and a second mounting column are respectively arranged on the surfaces opposite to each other, and the first mounting column and the second mounting column are respectively arranged at different positions in the radial direction of the switching shaft;

the first collar is mounted on the first mounting post and the second collar is mounted on the second mounting post.

In one embodiment, the surface of the lining cover facing the transmission disc is provided with a sliding groove, and when the transmission disc rotates, the second mounting column slides in the sliding groove, and the sliding groove is provided with a first side groove wall and a second side groove wall which are oppositely arranged along the sliding direction;

When the transmission disc rotates to the first position, the second mounting column abuts against the groove wall of the first side, and when the transmission disc rotates to the second position, the second mounting column abuts against the groove wall of the second side.

In one embodiment, a first limit part and a second limit part are respectively arranged on the opposite surfaces of the lining cover and the transmission disc;

The number of the first limiting parts is two, and the number of the second limiting parts is one;

When the switching shaft rotates around the axis, the second limiting parts are respectively abutted with the two first limiting parts;

When the second limiting part is abutted with one of the first limiting parts, the transmission disc is located at the first position, and when the second limiting part is abutted with the other first limiting part, the transmission disc is located at the second position.

In one embodiment, the switching member rotates from the third rotation position to the first rotation position and the second rotation position after rotating counterclockwise or clockwise by the same angle relative to the liner cap.

In one embodiment, an air outlet and an air inlet are formed in the surface of the shell, a first outlet of the first air channel and a second outlet of the second air channel are communicated with the air outlet, and a first inlet of the first air channel and a second inlet of the second air channel are arranged adjacent to the air inlet;

The width dimension of the first air channel and the width dimension of the second air channel along the first direction are larger than the opening dimension of the air inlet along the first direction, and the air inlet is used for air inlet to a position between two end parts of at least one of the first inlet and the second inlet along the first direction.

In one embodiment, the first air duct comprises a first main air duct and a first extension air duct which are connected, and the second air duct comprises a second main air duct and a second extension air duct which are connected;

The air nozzle also comprises an air duct body arranged on the inner wall of the shell, wherein the first main air duct and the second main air duct are layered in the air duct body along a second direction, and the outlets of the first main air duct and the second main air duct respectively form a first outlet and a second outlet;

The part of the channel section of the second main air duct close to the outlet of the second main air duct is bent towards the direction deviating from the first main air duct.

In one embodiment, the number of the first main air channels is a plurality, and the plurality of the first main air channels are arranged in a row along the first direction;

the number of the second main air channels is a plurality, and the second main air channels are arranged in a row along the first direction.

In one embodiment, the air inlet is used for introducing air to the central positions of the first inlet and the second inlet along the first direction;

The opening area of the inlet of each first main air duct is configured to gradually increase from the central position to the two end positions in the first direction, and/or

The opening area of the inlet of each second main air duct is configured to gradually increase in order from the first-direction central position to the first-direction both-end positions.

In one embodiment, the air duct body includes a body and a wind deflector;

Each first main air duct and each second main air duct are formed in the body, and a plurality of first air holes and a plurality of second air holes are formed in the wind shield;

The first air holes are communicated with the first main air channels in a one-to-one correspondence manner, and form inlets of the first main air channels;

The second air holes are communicated with the second main air channels in a one-to-one correspondence mode, and the second air holes form inlets of the second main air channels.

In one embodiment, two barrier strips are arranged on the inner wall of the shell and are oppositely arranged along the second direction;

The two baffle strips are arranged on one side of the air duct body, which is far away from the air outlet, so that the air duct body is fixed in the casing.

In one embodiment, the air outlet comprises a first sub air outlet and a second sub air outlet, the first sub air outlet is communicated with the outlets of the first main air channels, and the second sub air outlet is communicated with the outlets of the second main air channels;

The first sub air outlet and the second sub air outlet extend along the first direction, and the first sub air outlet and the second sub air outlet are arranged at intervals along the second direction.

In one embodiment, the switching member comprises a switching shaft and a switching plate connected to the circumferential surface of the switching shaft, wherein the switching shaft is rotatably connected to the inner wall of the casing around the axis;

The surface of the air duct body is also provided with a baffle plate, and the baffle plate is positioned between the inlet of the first main air duct and the inlet of the second main air duct and is abutted against the circumferential surface of the switching shaft;

The air duct body, the switching shaft and the inner wall of the casing jointly define an annular channel, in the annular channel, at least part of the channel section between one surface of the partition plate and the air inlet forms a first extension air duct, and at least part of the channel section between the other surface of the partition plate and the air inlet forms a second extension air duct.

In one embodiment, the inner wall of the shell is provided with a first stop wall, and the air duct body is provided with a second stop wall;

the switching plate is respectively abutted with the first stop wall and the second stop wall when rotating around the axis, the first inlet is closed when the switching plate is abutted with the first stop wall, and the second inlet is closed when the switching plate is abutted with the second stop wall.

In one embodiment, the air inlet and the switching shaft are arranged at intervals along the second direction, and the air inlet and the switching shaft are both positioned on the same side of the air duct body, and the distance between the air inlet and the inlet of the second main air duct is smaller than the distance between the air inlet and the inlet of the first main air duct.

In one of the embodiments, the end of the partition is provided with a gasket, the contour shape of the surface of which facing the switching shaft matches the outer circumferential surface of the switching shaft.

In one embodiment, the inner wall of the casing is further provided with a first mounting groove, and at least part of the structure of the partition board is inserted and mounted in the first mounting groove.

In one embodiment, the casing includes a first side wall and a second side wall disposed opposite to each other along a first direction, a first end of the switching shaft is rotatably connected to the first side wall, and a second end of the switching shaft is rotatably connected to the second side wall.

In one embodiment, the first side wall is provided with a second mounting groove, the inner groove wall of the second mounting groove is provided with a plurality of protruding ribs, and the protruding ribs encircle a circle around the axis;

The first end of the switching shaft is inserted into the second mounting groove and respectively abuts against each protruding rib.

In one embodiment, a part of the groove section of the second mounting groove is provided with an avoidance opening for avoiding the rotation action of the switching plate;

when the switching plate is abutted with the first stop wall, the switching plate is abutted with one edge of the avoidance port;

When the switching plate is abutted with the second stop wall, the switching plate is abutted with the other edge of the avoidance port.

In one embodiment, the tuyere further comprises an operation assembly, the operation assembly comprises a knob, the switching member further comprises a driving disc, the driving disc is connected to the second end of the switching shaft, and the driving disc is rotatably connected to the second side wall, so that the other end of the switching shaft is rotatably connected to the second side wall;

A first matching part is arranged on one side of the transmission disc, which is away from the switching shaft, and penetrates through the second side wall and extends out of the shell; the knob is located outside the casing and connected to the first matching part of the transmission disc.

In one embodiment, the surface of the knob facing the transmission disc is provided with a second matching part, the top surface of the second matching part is provided with a groove, and the first matching part is sleeved in the groove.

In one embodiment, the knob is provided with an opening to expose a part of the structure of the transmission disc, and the operation assembly further comprises a knob cover, wherein the knob cover is clamped to the knob and seals the opening.

In one embodiment, the circumferential surface of the driving disc is formed with a step portion, the second side wall is formed with a mounting hole, and the edge of the mounting hole is clamped on the step portion, so that the driving disc is rotationally connected to the second side wall.

A second aspect of an embodiment of the present application provides a hair care appliance comprising a tuyere as described above.

The tuyere and hair care device has the beneficial effects that:

When the switching piece is positioned between the first rotating position and the third rotating position, the switching piece can be switched to the first rotating position under the clockwise torque action of the elastic piece, and the first inlet is closed. Similarly, when the switching member is located between the second rotation position and the third rotation position, the switching member will switch to the second rotation position under the action of the counterclockwise torque of the elastic member, so as to close the second inlet. The switching and locking of the switching piece between the first rotating position and the second rotating position can be completed only by the elastic piece, and the switching piece is simple in structure and simple in operation.

Drawings

FIG. 1 is a schematic view of a tuyere structure according to an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of a tuyere provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a structure of a tuyere in a flattened state according to an embodiment of the present application;

fig. 4 is a schematic structural view of a tuyere in a direct blowing state according to an embodiment of the present application;

FIG. 5 is a schematic structural view of an air duct body in a tuyere according to an embodiment of the present application;

FIG. 6 is an exploded view of the switching shaft and housing mounting structure in the tuyere provided by the embodiment of the application;

FIG. 7 is an exploded view of a tuyere according to an embodiment of the present application;

FIG. 8 is a schematic view of the structure of an operating assembly in a flattened state of a tuyere provided by an embodiment of the present application;

Fig. 9 is a schematic structural view of an operating assembly in a direct blowing state of a tuyere according to an embodiment of the present application;

Fig. 10 is a schematic diagram of a structure in which a lining cover and a driving disc are matched with each other in a tuyere.

Reference numerals illustrate:

100. A tuyere;

10. The air conditioner comprises a casing, 101, a main body, 11, an air outlet, 111, a first sub-air outlet, 112, a second sub-air outlet, 12, an air inlet, 13, a first stop wall, 14, a stop bar, 15, a first side wall, 151, a second mounting groove, 1501, a decorative cover, 1511, an avoidance opening, 152, a protruding rib, 16, a second side wall, 161, a mounting hole, 17, a lining cover, 171, a first mounting column, 172, a first limiting part, 20, a first air channel, 21, a first outlet, 22, a first inlet, 23, a first main air channel, 231, an inlet of the first main air channel, 24, a first extension air channel, 30, a second air channel, 31, a second outlet, 32, a second inlet, 33, a second main air channel, 331, an inlet of the second main air channel, 34, a second extension air channel;

40. The air duct body 41, the body 42, the wind shield 421, the first wind hole 422, the second wind hole 43, the baffle plate 431, the gasket 44, the second stop wall 50, the switching piece 51, the switching shaft 52, the switching plate 53, the driving disk 531, the first matching part 5311, the groove 532, the step part 533, the second mounting post 534, the sliding groove 5341, the first side groove wall 5342, the second side groove wall 535, the second limiting part 60, the operating component 61, the knob 611, the second matching part 612, the opening 62, the knob cover 80, the elastic piece 801, the torsion spring body 81, the first connecting arm 811, the first mounting ring 82, the second connecting arm 821, the second mounting ring 90 and the sealing ring;

F. a first direction, a second direction and an H-shaped channel.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The following describes a tuyere and hair care appliance according to an embodiment of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a tuyere provided by an embodiment of the present application, fig. 2 is a schematic internal structural view of the tuyere provided by the embodiment of the present application, fig. 3 is a schematic structural view of the tuyere in a flattened state provided by the embodiment of the present application, and fig. 4 is a schematic structural view of the tuyere in a direct blowing state provided by the embodiment of the present application.

Referring to fig. 1, 2, 3 and 4, a tuyere provided by an embodiment of the present application includes a casing 10 and a switching member 50.

The surface of the casing 10 is provided with an air outlet 11 and an air inlet 12, a first air channel 20 and a second air channel 30 are formed in the casing 10, a first outlet 21 of the first air channel 20 and a second outlet 31 of the second air channel 30 are communicated with the air outlet 11, and a first inlet 22 of the first air channel 20 and a second inlet 32 of the second air channel 30 are arranged adjacent to the air inlet 12. The switching member 50 is rotatably connected to the casing 10 about an axis, and the switching member 50 is configured to selectively close the first inlet 22 and the second inlet 32 when rotated.

The width dimension of the first air duct 20 and the second air duct 30 along the first direction F is greater than the opening dimension of the air inlet 12 along the first direction F, and the air inlet 12 is used for air inlet to a position between two ends of at least one of the first inlet 22 and the second inlet 32 along the first direction F. The width dimension of the first air duct 20 in the first direction F may be, for example, the width dimension of the first air duct 20 in the first direction F in the portion of the duct section immediately adjacent to the first inlet 22. The width dimension of the second duct 30 in the first direction F refers to the width dimension of the portion of the second duct 30 immediately adjacent the second inlet 32 in the first direction F.

In the present embodiment, the first inlet 22, the second inlet 32, and the air intake 12 are disposed adjacent to each other and each have a certain size in the first direction F. The first direction F may be, for example, parallel to the axis of rotation of the switch 50, and the first inlet 22 and the second inlet 22 may be, for example, elongated inlets extending along the axis of rotation of the switch 50.

In addition, for convenience of description, the air intake direction of the air intake 12 is defined as a second direction S, that is, the height direction of the air duct body 40.

By arranging the first air duct 20, the second air duct 30 and the switching member 50 in the casing 10, the switching member 50 is rotatably connected in the casing 10 around an axis, the switching member 50 is configured to selectively close the first inlet 22 and the second inlet 32 when rotated, and the wind of the air inlet 12 can enter the second air duct 30 through the second inlet 32 and flow out through the second outlet 31 and the air outlet 11 as long as the switching member 50 is rotated to close the first inlet 22. By turning the switching member 50 to close the second inlet 32, the air of the air inlet 12 can enter the first air duct 20 through the first inlet 22 and flow out through the first outlet 21 and the air outlet 11, so that the switching of the two air ducts can be realized with a simpler switching structure.

Since the width dimensions of the first air duct 20 and the second air duct 30 along the first direction F are both larger than the opening dimensions of the air intake 12 along the first direction F, in other words, the opening dimensions of the first inlet 22 and the second inlet 32 along the first direction F are both larger than the opening dimensions of the air intake 12 along the first direction F, when the air intake 12 is blown into the end position of the first inlet 22 or the first direction F of the second inlet 32, the air intake of the first inlet 22 is gradually attenuated at a position further from the end position of the first inlet 22 due to wind resistance, which also results in that the air intake of the first outlet 21 along the first direction F is very uneven.

In the present application, the air intake 12 is fed to the position between the two ends of at least one of the first inlet 22 and the second inlet 32 in the first direction F, and the distance between the air intake position and the two ends of the first inlet 22 is reduced, and the attenuation amount of the air intake is not as large from the air intake position to the two ends of the first inlet 22, in other words, the air intake amount entering from the first inlet 22 is relatively uniform in the first direction F compared with the air intake position at any one end of the first direction F (the end includes at least one of the upper, lower, front, rear, side and/or circumferential surfaces at any one end of the first direction F), so that the uniformity of the air intake in the first direction F in the first outlet 21 is improved to some extent. The case of the air intake 12 taking in air to the second inlet 32 at a position between the two ends along the first direction F is similar to the above, and will not be described here again.

In the embodiment of the present application, the first air duct 20 includes a first main air duct 23 and a first extension air duct 24 connected to each other, and the second air duct 30 includes a second main air duct 33 and a second extension air duct 34 connected to each other.

The tuyere 100 further comprises an air duct body 40 arranged on the inner wall of the casing 10, wherein the first main air duct 23 and the second main air duct 33 are layered in the air duct body 40 along the second direction S, and the outlets of the first main air duct 23 and the second main air duct 33 respectively form a first outlet 21 and a second outlet 31. The first direction F is perpendicular to the second direction S. The partial channel section of the second main air duct 33 near the outlet thereof is bent in a direction away from the first main air duct 23.

So arranged, by forming the first main air duct 23 and the second main air duct 33 of the first air duct 20 and the second air duct 30 near the air outlet 11 in one air duct body 40, it is convenient to flexibly set the shapes of the first main air duct 23 and the second main air duct 33 according to actual use functions. The partial channel section of the second main air duct 33 near the outlet thereof is bent in a direction away from the first main air duct 23, so that the wind blown out from the second main air duct 33 has a smoothing effect. Of course, a part of the passage section of the first main air duct 23 near the outlet thereof is provided as a straight section, and the wind blown out from the first main air duct 23 can exert a direct blowing effect.

It will be appreciated that in other embodiments, a portion of the channel section of the first main duct 23 near the outlet thereof may be bent in a direction away from the second main duct 33, so that the wind blown out from the first main duct 23 may have a smoothing effect. Of course, a portion of the passage section of the second main air duct 33 near the outlet thereof is provided as a straight section, and the wind blown out from the second main air duct 33 can exert a direct blowing effect.

In the embodiment of the present application, the number of the first main air channels 23 is plural, and the plural first main air channels 23 are arranged in a row along the first direction F. The number of the second main air ducts 33 is plural, and the second main air ducts 33 are arranged in a row along the first direction F.

So set up, under the same circumstances of intake, can make the wind velocity in each main wind channel all faster, and more even, strengthened the effect of blowing.

In the embodiment of the present application, referring to fig. 2, the air inlet 12 enters the first inlet 22 and the second inlet 32 at the central position along the first direction F.

Fig. 5 is a schematic structural diagram of an air duct body in a tuyere according to an embodiment of the present application.

Referring to fig. 5, the opening area of the inlet 231 of each first main duct is configured to gradually increase in order from the central position in the first direction F to the positions at both ends in the first direction F.

Further, the opening area of the inlet 331 of each second main air duct is configured to gradually increase in order from the center position in the first direction F to the positions at both ends in the first direction F.

Similarly to the above, the greater the wind resistance at the position farther from the center position, the smaller the amount of air intake, and by providing as above, the attenuation of the amount of air intake at the position near the end of the duct body 40 can be made up, so that the amount of air intake is more uniform in the entire area in the first direction F.

In particular, the opening size of the inlet 231 of each first main air duct in the first direction F is configured to gradually increase in order from the central position in the first direction F to the positions at both ends in the first direction F.

Further, the opening size of the inlet 331 of each second main air duct in the first direction F is configured to gradually increase in order from the central position in the first direction F to the both end positions in the first direction F.

In some embodiments, the opening size of the inlet 231 of each first main duct in the second direction S is configured to gradually increase in order from the central position in the first direction F to the positions at both ends in the first direction F. In some embodiments, the second direction S is perpendicular to the first direction, and the second direction S is the height direction of the air duct body 40.

Further, the opening size of the inlet 331 of each second main air duct in the second direction S is configured to gradually increase in order from the central position in the first direction F to the both end positions in the first direction F.

In the embodiment of the present application, the air duct body 40 includes a body 41 and a wind deflector 42;

Each of the first main air ducts 23 and each of the second main air ducts 33 are formed in the body 41, and a plurality of first air holes 421 and a plurality of second air holes 422 are formed in the wind deflector 42.

The first air holes 421 communicate with the respective first main air ducts 23 in one-to-one correspondence, and the first air holes 421 form inlets 231 of the first main air ducts. The second air holes 422 are communicated with the second main air ducts 33 in a one-to-one correspondence, and the second air holes 422 form inlets 331 of the second main air ducts.

In this way, when the sizes of the inlets 231 of the respective first main air ducts are different, the channel sizes of the respective first main air ducts 23 may be the same, and it is only necessary to set the sizes of the first air holes 421 on the wind deflector 42 to be different. Similarly, when the sizes of the inlets 231 of the respective first main air ducts are different, the channel sizes of the respective second main air ducts 33 may be the same, and the sizes of the second air holes 422 in the wind deflector 42 may be set to be different. The processing of the main body can be simplified.

In the embodiment of the present application, referring to fig. 2 and 3, two barrier ribs 14 are disposed on the inner wall of the casing 10, and the two barrier ribs 14 are disposed opposite to each other along the second direction S.

The two blocking strips 14 are both blocked and arranged on one side of the air duct body 40, which is far away from the air outlet 11, so as to fix the air duct body 40 in the casing 10.

Thus, the duct body 40 can be fixed with a simple structure. The air duct body 40 may extend in the first direction F.

With continued reference to fig. 1, the air outlet 11 includes a first sub-air outlet 111 and a second sub-air outlet 112, the first sub-air outlet 111 being in communication with the outlet of each first main air duct 23, and the second sub-air outlet 112 being in communication with the outlet of each second main air duct 33. In other words, the first sub-air outlet 111 is disposed corresponding to the first main air duct 23, and the second sub-air outlet 112 is disposed corresponding to the second main air duct 33. The first sub-air outlet 111 and the second sub-air outlet 112 extend along the first direction F, and the first sub-air outlet 111 and the second sub-air outlet 112 are disposed at intervals along the second direction S.

In the embodiment of the present application, referring to fig. 3, 5 and 6, the switching member 50 includes a switching shaft 51 and a switching plate 52 coupled to a circumferential surface of the switching shaft 51. The switching shaft 51 is rotatably connected to the inner wall of the casing 10 about the axis described above.

The surface of the duct body 40 is further provided with a partition plate 43, and the partition plate 43 is positioned between the inlet 231 of the first main duct and the inlet 331 of the second main duct and abuts against the circumferential surface of the switching shaft 51.

The duct body 40, the switching shaft 51 and the inner wall of the casing 10 together define an annular channel H in which at least a portion of the channel section between one surface of the partition 43 (e.g., the upper surface in fig. 3) and the air intake 12 forms the first elongated duct 24. At least a portion of the channel section between the other surface of the partition 43 (e.g., the lower surface in fig. 3) and the intake 12 forms a second elongate air duct 34.

In this way, the switching shaft 51 and the partition plate 43 are utilized to cut out a part of the annular channel H defined in the casing 10 as the first extension air duct 24 and the second extension air duct 34 respectively, and components (such as the air duct body 40) with channels formed therein are not needed to be arranged in the casing 10, so that the structure in the casing 10 is compact, and the number of components is small.

The partition plate 43 may be fixed to the wind deflector 42 of the duct body 40, for example, or the partition plate 43 and the wind deflector 42 may be integrally formed. Specifically, the partition plate 43 is fixed or formed on the side of the wind deflector 42 facing away from the body 41 and extends toward the switching shaft 51, and one end of the partition plate 43 near the switching shaft 51 is designed to conform to the structure of the circumferential surface of the switching shaft 51 and accommodate the rotation of the switching member 50.

In particular, for example, a spacer 431 may be provided at an end portion of the separator 43, and a contour shape of a side surface of the spacer 431 facing the switching shaft 51 may be matched with an outer peripheral surface of the switching shaft 51.

Thus, when the diaphragm 43 abuts on the switching shaft 51, the rotation of the switching shaft 51 is not hindered or affected, and the sealability between the first extension passage and the second extension passage is increased. Of course, the spacer 431 is sized to accommodate smooth rotation of the switching member 50.

With continued reference to fig. 2 and 3, the inner wall of the casing 10 is provided with a first stop wall 13, the air duct body 40 is provided with a second stop wall 44, and the air inlet 12 is located between the first stop wall 13 and the second stop wall 44. The first stop wall 13 defines the first inlet 22 and the second stop wall 44 defines the second inlet 32.

As described above, the duct body 40, the switching shaft 51 and the inner wall of the casing 10 together define an annular channel H, in which a part of the channel section is used as the first extended duct 24 and a part of the channel section is used as the second extended duct 34. In the annular channel H, a portion of the channel section between one surface (e.g., the upper surface in fig. 3) of the partition plate 43 and the first stopper wall 13 forms the first extended air passage 24. At least a portion of the channel section between the other surface of the partition 43 (e.g., the lower surface in fig. 3) and the second stop wall 44 forms the second elongate air channel 34. While the portion formed between the first and second blocking walls 13 and 44 communicates with the air intake 12. In other words, after the wind entering through the wind inlet 12 passes through the area between the first blocking wall 13 and the second blocking wall 44, the wind enters the first inlet 22 and the second inlet 32 alternatively.

The switching plate 52 abuts the first stopper wall 13 and the second stopper wall 44, respectively, when rotating around the axis. When the switching plate 52 abuts against the first stopper wall 13, the first inlet 22 is closed. When the switching plate 52 abuts against the second stopper wall 44, the second inlet 32 is closed.

Since the air intake 12 is located between the first stopper wall 13 and the second stopper wall 44, the first stopper wall 13 is located in a passage section between one surface of the partition 43 and the air intake 12, the second stopper wall 44 is located in a passage section between the other surface of the partition 43 and the air intake 12, and the switching plate 52 cooperates with the first stopper wall 13 and the second stopper wall 44 to form the first inlet 22 at the first stopper wall 13 and the second inlet 32 at the second stopper wall 44.

In the embodiment of the present application, referring to fig. 2, the air inlet 12 is formed on the bottom wall of the casing 10, the switching shaft 51 is disposed at a position spaced apart from the bottom wall of the casing 10 in the casing 10, so that the air inlet 12 and the switching shaft 51 are arranged at intervals along the second direction S, and the air inlet 12 and the switching shaft 51 are both located on the same side of the air duct body 40, and the distance between the air inlet 12 and the inlet 331 of the second main air duct is smaller than the distance between the air inlet 12 and the inlet 231 of the first main air duct.

So configured, the inlet air from the inlet air inlet 12 may directly enter the inlet 331 of the second main duct when the second inlet 32 is opened, and the first extension duct 24 is formed in a bent shape such that the first inlet 22 and the second inlet 32 may be disposed opposite to each other.

Fig. 6 is an exploded view of the switching shaft and the housing mounting structure in the tuyere according to the embodiment of the present application.

In the embodiment of the present application, referring to fig. 6, the inner wall of the casing 10 is further provided with a first mounting groove 5311, and at least part of the structure of the partition 43 is inserted and mounted in the first mounting groove 5311. In this way, the first mounting groove 5311 can assist in positioning the partition plate 43.

In the embodiment of the present application, referring to fig. 1 and 6, the casing 10 includes a first sidewall 15 and a second sidewall 16 disposed opposite to each other along a first direction F, and a first end of the switching shaft 51 is rotatably connected to the first sidewall 15 and a second end of the switching shaft 51 is rotatably connected to the second sidewall 16. So arranged, the switching shaft 51 can be bridged inside the cabinet 10 in the first direction F.

In the embodiment of the present application, the first side wall 15 is provided with the second installation groove 151, and the inner groove wall of the second installation groove 151 is provided with a plurality of protruding ribs 152, and the plurality of protruding ribs 152 enclose a circle around the axis. One end of the switching shaft 51, that is, the first end of the switching shaft 51 is inserted into the second mounting groove 151 and abuts against each of the protruding ribs 152, respectively. So arranged, each protruding rib 152 ultimately supports the first end of the switching shaft 51. When the switching shaft 51 rotates relative to the first side wall 15, the contact area is reduced, and the friction force is reduced.

In the embodiment of the present application, a portion of the groove section of the second mounting groove 151 is provided with a dodging port 1511 for dodging the rotation action of the switching plate 52. When the switching plate 52 abuts against the first stopper wall 13, the switching plate 52 abuts against one edge of the escape port 1511. When the switching plate 52 abuts against the second stopper wall 44, the switching plate 52 abuts against the other edge of the escape port 1511. So arranged, both edges of the relief port 1511 can limit the movement of the switch plate 52.

Fig. 7 is an exploded view of a tuyere according to an embodiment of the present application.

In the embodiment of the present application, referring to fig. 7, a decorative cover 1501 is further installed on a side of the first side wall 15 facing away from the second side wall 16, so that, for facilitating the observation of the internal structure, part of the structure of the casing 10 is hidden, and only the second side wall 16 is left. The tuyere 100 further comprises an operating assembly 60, the operating assembly 60 comprises a knob 61, the switching member 50 further comprises a driving disc 53, the driving disc 53 is connected to the other end of the switching shaft 51, i.e. the second end of the switching shaft 51, the driving disc 53 is rotatably connected to the second side wall 16, so that the other end of the switching shaft 51 is rotatably connected to the second side wall 16.

The transmission disc 53 is provided with a first engaging portion 531 at a side facing away from the switching shaft 51, and the first engaging portion 531 penetrates the second side wall 16 and extends out of the casing 10. For example, the second side wall 16 may be provided with a mounting hole 161 through which the first engaging portion 531 passes. The knob 61 is located outside the casing 10 and is connected to the first fitting portion 531 of the driving plate 53.

Thus, by rotating the operation knob 61, the transmission plate 53 and the switching shaft 51 are rotated together.

In the embodiment of the present application, with continued reference to fig. 7, the knob 61 is turned to the position where the other side is exposed, as shown by the black arrow, the surface of the knob 61 facing the driving disc 53 is provided with a second mating portion 611, the top surface of the second mating portion 611 is provided with a groove 5311, and the first mating portion 531 is sleeved in the groove 5311.

In a specific implementation, the number of the second mating parts 611 and the number of the first mating parts 531 are all plural and are arranged in a one-to-one correspondence manner, for example, the number of the first mating parts 531 and the second mating parts 611 may be all 4 groups. The knob 61 may be rotatable relative to the second sidewall 16, for example, by a snap fit on the drive plate 53.

In the embodiment of the present application, the knob 61 is provided with an opening 612 to expose a part of the structure of the transmission disc 53, and the operation assembly 60 further includes a knob cover 62, where the knob cover 62 is clamped to the knob 61, and the opening 612 is blocked.

In the embodiment of the present application, the circumferential surface of the driving disc 53 is formed with a step portion 532, the second side wall 16 is formed with a mounting hole 161, and the inner edge of the mounting hole 161 is convexly provided with a circumferential protrusion, and the protrusion abuts against the step portion 532, so that the driving disc 53 is rotatably connected to the second side wall 16.

This arrangement facilitates positioning of the switching shaft 51 and the second side wall 16 in the axial direction of the switching shaft 51. In addition, the second side wall 16 may be formed separately from the main body 101 of the casing 10, and at this time, the second side wall 16 may be clamped to the main body 101 of the casing 10.

Referring to fig. 1, 6 and 7, as previously described, the casing 10 may include a main body 101, a first sidewall 15 and a second sidewall 16, the main body 101 being configured as a hollow member having both ends open, the first sidewall 15 and the second sidewall 16 being respectively connected to both sides of the main body 101 in the first direction F. The end of the first side wall 15 facing away from the second side wall 16 is connected with a decorative cover 1501.

Fig. 8 is a schematic structural view of an operating assembly in a flattened state of a tuyere provided by an embodiment of the present application, and fig. 9 is a schematic structural view of an operating assembly in a direct blowing state of a tuyere provided by an embodiment of the present application.

The state of fig. 8 corresponds to fig. 3, and the state of fig. 9 corresponds to fig. 4. For the sake of convenience of observation, the transmission disc 53 in fig. 8 and 9 is moved a distance away from the liner cap 17 along the axial direction of the switching shaft 51.

In the embodiment of the present application, referring to fig. 3, 4, 8 and 9, the casing 10 further includes a liner cover 17, the liner cover 17 is connected to the casing 10, the switching shaft 51 penetrates the liner cover 17, and the liner cover 17 is disposed opposite to the driving disc 53.

The driving disc 53 drives the switching shaft 51 to rotate, the rotating position of the driving disc 53 relative to the lining cover 17 has a first position as shown in fig. 3 and 8, a second position as shown in fig. 4 and 9, and a third position, and after the driving disc 53 rotates counterclockwise or clockwise by a certain angle relative to the lining cover 17 from the third position, the driving disc 53 rotates to the first position and the second position respectively. Of course, the third position may be a central position between the first position and the second position, i.e., the driving disk 53 is rotated to the first position and the second position, respectively, after being rotated by the same angle from the third position counterclockwise or clockwise with respect to the liner cap 17.

When the driving disc 53 is in the first position, the switching plate 52 closes the first inlet 22, and when the driving disc 53 is rotated to the second position, the switching plate 52 closes the second inlet 32.

The operating assembly 60 further includes an elastic member 80, the elastic member 80 being connected to the driving disk 53 and the lining cover 17, respectively, the elastic member 80 being configured to always apply a clockwise torque to the rotating disk when the driving disk 53 is between the first position and the third position, and the elastic member 80 being further configured to always apply a counterclockwise torque to the rotating disk when the driving disk 53 is between the second position and the third position.

So set up, when switching, when the manual operation knob 61 of operating personnel makes the driving disk 53 rotate, if the driving disk is located between first position and third position, if the operating personnel does not operate knob 61, driving disk 53 can switch to first position under the clockwise moment of torsion of elastic component 80, because switch plate 52 keeps off on first backstop wall 13 this moment, even though the operating personnel no longer operates, driving disk 53 can still rest at first position under this clockwise moment of torsion effect, keeps the closed state of first entry 22. In the same way, when the operator manually operates the knob 61 to rotate the driving disc 53, if the driving disc 53 is located between the second position and the third position, and if the operator does not operate the knob 61, the driving disc 53 will switch to the second position under the action of the counterclockwise torque of the elastic member 80, and since the switching plate 52 is blocked on the second blocking wall 44 at this time, even if the operator does not operate any more, the driving disc 53 will always stop at the second position under the action of the counterclockwise torque, and the closed state of the second inlet 32 will be maintained.

In the embodiment of the present application, when the motion of the driving disk 43 is deduced to the switching member 50, the switching member 50 has a first rotational position, a second rotational position, and a third rotational position between the first rotational position and the second rotational position with respect to the lining cover 17. The first rotational position of the switching member 50 corresponds to the first position of the driving disc 53, the second rotational position of the switching member 50 corresponds to the second position of the driving disc 53, and the third rotational position of the switching member 50 corresponds to the third position of the driving disc 53.

On the basis of this, the switching element 50 closes the first inlet 22 in the first rotational position, and the switching element 50 closes the second inlet 32 in the second rotational position.

The elastic member 80 is configured to always apply a clockwise torque to the switching member 50 when the switching member 50 is between the first rotational position and the third rotational position, and the elastic member 80 is further configured to always apply a counterclockwise torque to the switching member 50 when the switching member 50 is between the second rotational position and the third rotational position.

So configured, when the switching member 50 is positioned between the first rotational position and the third rotational position during switching, the switching member 50 is switched to the first rotational position by the clockwise torque of the elastic member 80, and the first inlet 22 is closed. Similarly, when the switching member 50 is located between the second rotational position and the third rotational position, the switching member 50 will be switched to the second rotational position by the counterclockwise torque of the elastic member 80, and the second inlet 32 is closed. The switching and locking of the switching member 50 between the first rotational position and the second rotational position can be accomplished by the elastic member 80 alone, and the structure is simple and the operation is also relatively simple.

In an embodiment of the present application, referring to fig. 9, the elastic member 80 is a torsion spring including a torsion spring main body 801, a first connection arm 81, and a second connection arm 82.

The first connecting arm 81 and the second connecting arm 82 extend radially outward from the torsion spring body 801 from the end of the torsion spring body 801, and the first connecting arm 81 and the second connecting arm 82 have a predetermined angle. The first connecting arm 81 is connected to the liner cap 17, and the second connecting arm 82 is connected to the driving disk 53.

As such, the elastic member 80 may apply an elastic force toward the first position to the driving disk 53 when the driving disk 53 is between the first position and the third position, and apply an elastic force toward the second position to the driving disk 53 when the driving disk 53 is between the second position and the third position.

In the embodiment of the present application, with continued reference to fig. 9, the ends of the first connecting arm 81 and the second connecting arm 82 are provided with a first mounting ring 811 and a second mounting ring 821, respectively. The inner cover 17 and the driving disk 53 are provided with a first mounting post 171 and a second mounting post 533 on surfaces thereof facing each other, respectively, and the first mounting post 171 and the second mounting post 533 are provided at different positions in the radial direction of the switching shaft 51, respectively.

The first mounting ring 811 is mounted on the first mounting post 171 and the second mounting ring 821 is mounted on the second mounting post 533. Note that, in fig. 9, for the sake of convenience of observation, the transmission disk 53 is moved away from the lining cover 17 by a certain distance, and the second mount ring 821 and the second mount post 533 are in a disengaged state.

This arrangement allows the first and second connecting arms 81, 82 of the torsion spring to be securely mounted on the inner cover 17 and the drive disk 53, respectively.

In the embodiment of the present application, the surface of the inner liner cover 17 facing the driving disc 53 is provided with a sliding groove 534, and when the driving disc 53 rotates, the second mounting post 533 slides in the sliding groove 534. The slide groove 534 has a first side groove wall 5341 and a second side groove wall 5342 which are disposed opposite to each other in the sliding direction.

The second mounting post 533 abuts the first side slot wall 5341 when the drive disk 53 is rotated to the first position, and the second mounting post 533 abuts the second side slot wall 5342 when the drive disk 53 is rotated to the second position.

So configured, the rotation of the drive disk 53 is facilitated to be limited by the second mounting post 533 as the drive disk 53 rotates.

Referring to fig. 10, the driving disk 53 is cut away for ease of viewing, and the outer contour of the driving disk 53 is shown in broken lines.

In the embodiment of the present application, the inner liner cover 17 and the driving disc 53 are provided with a first limit portion 172 and a second limit portion 535 on opposite surfaces thereof, respectively.

The number of the first stopper portions 172 is two, and the number of the second stopper portions 535 is one. When the switching shaft 51 rotates around the axis, the second stopper 535 abuts against the two first stoppers 172.

When the second limiting portion 535 abuts against one of the first limiting portions 172, the driving disc 53 is located at the first position, and when the second limiting portion 535 abuts against the other first limiting portion, the driving disc 53 is located at the second position. In this way, the rotation of the drive disc 53 between the first position and the second position can be limited.

Further, the inner liner cover 17 is connected to one side end of the air duct body 40 along the first direction F, and a part of the air duct body 40 is inserted into the inner liner cover 17.

In particular, the duct body 40 and the liner cover 17 may be connected by fasteners such as screws.

Further, a gasket 90 is connected between the inner liner cover 17 and the inner sidewall of the casing 10.

So configured, with the second side wall 16 detachable from the body 41, the first and second elongate air channels 24, 34 can be prevented from leaking out.

The following describes a switching process of the straight blowing and smoothing state of the tuyere 100 according to an embodiment of the present application with reference to fig. 3, 4, 7, 8 and 9.

In the state shown in fig. 3 and 7, the switching plate 52 abuts against the first stopper wall 52 to close the first inlet 22. As indicated by the dashed arrow, the air intake from the air intake 12 flows out through the second elongated duct 34, the second main duct 33, and through the air outlet 11, and the air blown out through the second main duct 33 has a smoothing effect because a part of the channel section of the second main duct 33 is bent downward toward the outlet position. In this state, referring to fig. 8, the transmission disc 53 is in the first position.

When the operator needs to switch to the direct blowing mode, the operator manually operates the knob 61, and in the process of rotating the driving disc 53 counterclockwise, before the driving disc 53 rotates to the third position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 approach each other, and the included angle becomes smaller, so that the elastic member 80 always applies a clockwise torque to the driving disc 53. The operator needs to overcome this torque to continue rotating the drive disk 53 counterclockwise. Until a third position is reached, which is a central position. At this time, the driving disk 53 rotates from the third position to the second position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 are away from each other, the angle becomes large, and at this time, the elastic member 80 always applies a counterclockwise torque to the driving disk 53. The operator will now switch the transmission disc 53 to the second position shown in fig. 4 and 9 under this counter-clockwise torque even if the knob 61 is not operated.

In the second position of the transmission disc 53, referring to fig. 4, the switching plate 52 abuts against the second stop wall 44, closing the second inlet 32. As indicated by the dashed arrow, the air intake from the air inlet 12 flows out through the first extended air duct 24, the first main air duct 23, and through the air outlet 11, and the air blown out through the first main air duct 23 has a direct blowing effect because the position of the first main air duct 23 near the outlet is a straight passage.

When the operator needs to switch to the smooth mode, the operator manually operates the knob 61, and before the transmission disc 53 rotates to the third position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 approach each other, and the included angle becomes smaller, so that the elastic member 80 always applies a counterclockwise torque to the transmission disc 53. The operator needs to overcome this torque and continue to rotate the drive disk 53 clockwise. Until a third position is reached, which is a central position. At this time, the driving disk 53 rotates from the third position to the first position, the first mounting ring 811 and the second mounting ring 821 of the elastic member 80 are away from each other, the angle becomes large, and at this time, the elastic member 80 always applies a clockwise torque to the driving disk 53. The operator will then switch the transmission disc 53 to the first position shown in fig. 3 and 8 under this clockwise torque even if the knob 61 is not operated.

Embodiments of the present application also provide a hair care appliance comprising the above-described tuyere 100. The structure, function, operation principle, etc. of the tuyere 100 have been described in detail above, and will not be described again here.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A tuyere, comprising:

The air conditioner comprises a machine shell (10), wherein a first air channel (20) and a second air channel (30) are formed in the machine shell (10), the air inlet of the air nozzle (100) is formed through a first inlet (22) of the first air channel (20) and a second inlet (32) of the second air channel (30), air is discharged through outlets of the first air channel (20) and the second air channel (30), and a lining cover (17) is further arranged in the machine shell (10);

A switch (50) rotatably connected in the casing (10) about an axis, the switch (50) having a first rotational position, a second rotational position and a third rotational position between the first rotational position and the second rotational position relative to the liner cap (17), the switch (50) closing the first inlet (22) in the first rotational position and the switch (50) closing the second inlet (32) in the second rotational position;

An operating assembly (60) comprising an elastic member (80), said elastic member (80) being connected to said switching member (50) and to said lining cover (17), respectively;

The elastic member (80) is configured to always apply a clockwise torque to the switching member (50) when the switching member (50) is between the first rotational position and the third rotational position, and the elastic member (80) is further configured to always apply a counterclockwise torque to the switching member (50) when the switching member (50) is between the second rotational position and the third rotational position.

2. The tuyere of claim 1, characterized in that the elastic member (80) is a torsion spring including a torsion spring body (801), a first connecting arm (81) and a second connecting arm (82);

The first connecting arm (81) is connected to the lining cover (17), and the second connecting arm (82) is connected to the switching member (50).

3. The tuyere according to claim 2, characterized in that the first connecting arm (81) and the second connecting arm (82) protrude radially outward of the torsion spring body (801) from an end portion of the torsion spring body (801), and the first connecting arm (81) and the second connecting arm (82) have a preset included angle.

4. A tuyere according to claim 3, characterized in that the switching member (50) comprises a switching shaft (51) and a transmission disc (53) connected to one end of the switching shaft (51), the end of the switching shaft (51) facing away from the transmission disc (53) and the transmission disc (53) being rotatably connected to the inner wall of the casing (10) around the axis;

The ends of the first connecting arm (81) and the second connecting arm (82) are respectively provided with a first mounting ring (811) and a second mounting ring (821);

the lining cover (17) and the transmission disc (53) are arranged opposite to each other, a first mounting column (171) and a second mounting column (533) are respectively arranged on the surfaces opposite to each other, and the first mounting column (171) and the second mounting column (533) are respectively arranged at different positions in the radial direction of the switching shaft (51);

The first mounting ring (811) is mounted on the first mounting post (171), and the second mounting ring (821) is mounted on the second mounting post (533).

5. The tuyere according to claim 4, characterized in that a sliding groove (534) is formed in a surface of the inner lining cover (17) facing the driving disc (53), the second mounting post (533) slides in the sliding groove (534) when the driving disc (53) rotates, the sliding groove (534) is provided with a first side groove wall (5341) and a second side groove wall (5342) which are oppositely arranged along a sliding direction of the second mounting post (533), and the first rotating position, the second rotating position and the third rotating position of the switching piece (50) respectively correspond to a first position, a second position and a third position of the driving disc (53);

The second mounting post (533) abuts against the first side groove wall (5341) when the transmission disc (53) rotates to the first position, and the second mounting post (533) abuts against the second side groove wall (5342) when the transmission disc (53) rotates to the second position.

6. The tuyere according to claim 5, characterized in that a first limit portion (172) and a second limit portion (535) are provided on opposite surfaces of the inner liner cap (17) and the driving disc (53), respectively;

the number of the first limiting parts (172) is two, and the number of the second limiting parts (535) is one;

When the switching shaft (51) rotates around the axis, the second limiting parts (535) are respectively abutted with the two first limiting parts (172);

When the second limiting part (535) is abutted with one of the first limiting parts (172), the transmission disc (53) is located at the first position, and when the second limiting part (535) is abutted with the other of the first limiting parts (172), the transmission disc (53) is located at the second position.

7. A tuyere according to claim 1, characterized in that the switching member (50) is rotated from the third rotation position to the first rotation position and the second rotation position respectively after being rotated by the same angle counterclockwise or clockwise with respect to the inner lining cover (17).

8. The tuyere according to claim 1, characterized in that an air outlet (11) and an air inlet (12) are opened on the surface of the casing (10), a first outlet (21) of the first air duct (20) and a second outlet (31) of the second air duct (30) are both communicated with the air outlet (11), and the first inlet (22) of the first air duct (20) and the second inlet (32) of the second air duct (30) are both arranged adjacent to the air inlet (12);

The width dimension of the first air duct (20) and the second air duct (30) along the first direction (F) is larger than the opening dimension of the air inlet (12) along the first direction (F), and the air inlet (12) is used for air inlet to a position between two ends of at least one of the first inlet (22) and the second inlet (32) along the first direction (F).

9. The tuyere of claim 8, wherein the first air duct (20) comprises a first main air duct (23) and a first extension air duct (24) connected, and the second air duct (30) comprises a second main air duct (33) and a second extension air duct (34) connected;

The air nozzle (100) further comprises an air duct body (40) arranged on the inner wall of the casing (10), the first main air duct (23) and the second main air duct (33) are formed in the air duct body (40) in a layered manner along a second direction (S), and the outlets of the first main air duct (23) and the second main air duct (33) respectively form a first outlet (21) and a second outlet (31), wherein the second direction (S) is the air inlet direction of the air inlet (12);

The part of the channel section of the second main air duct (33) close to the outlet of the second main air duct is bent towards the direction deviating from the first main air duct (23).

10. The tuyere according to claim 9, characterized in that the number of the first main air ducts (23) is plural, and the plurality of the first main air ducts (23) are arranged in a row along the first direction (F);

The number of the second main air channels (33) is a plurality, and the second main air channels (33) are arranged in a row along the first direction (F).

11. The tuyere of claim 10, characterized in that the air intake (12) is air-fed to a central position of the first inlet (22) and the second inlet (32) along the first direction (F);

The opening area of the inlet (231) of each first main air duct is configured to gradually increase from the central position of the first direction (F) to the positions of the two ends of the first direction (F), and/or

The opening area of the inlet (331) of each of the second main air ducts is configured to gradually increase in order from the central position in the first direction (F) to the positions of both ends in the first direction (F).

12. The tuyere of claim 11, characterized in that the air duct body (40) comprises a body (41) and a wind deflector (42);

Each first main air duct (23) and each second main air duct (33) are formed in the body (41), and a plurality of first air holes (421) and a plurality of second air holes (422) are formed in the wind shield (42);

The first air holes (421) are communicated with the first main air channels (23) in a one-to-one correspondence manner, and the first air holes (421) form inlets (231) of the first main air channels;

The second air holes (422) are communicated with the second main air channels (33) in a one-to-one correspondence, and the second air holes (422) form inlets (331) of the second main air channels.

13. The tuyere according to claim 12, characterized in that the inner wall of the casing (10) is provided with two bars (14), the two bars (14) being arranged opposite along the second direction (S);

The two blocking strips (14) are arranged on one side, away from the air outlet (11), of the air duct body (40) in a blocking mode, so that the air duct body (40) is fixed in the casing (10).

14. The tuyere according to claim 10, characterized in that the air outlet (11) comprises a first sub-air outlet (111) and a second sub-air outlet (112), the first sub-air outlet (111) being in communication with the outlet of each of the first main air ducts (23), the second sub-air outlet (112) being in communication with the outlet of each of the second main air ducts (33);

The first sub-air outlet (111) and the second sub-air outlet (112) extend along the first direction (F), and the first sub-air outlet (111) and the second sub-air outlet (112) are arranged at intervals along the second direction (S).

15. The tuyere according to claim 9, characterized in that the switching member (50) comprises a switching shaft (51) and a switching plate (52) connected to a circumferential surface of the switching shaft (51), the switching shaft (51) being rotatably connected to an inner wall of the casing (10) around the axis;

The surface of the air duct body (40) is also provided with a baffle plate (43), and the baffle plate (43) is positioned between the inlet (231) of the first main air duct and the inlet (331) of the second main air duct and is abutted against the circumferential surface of the switching shaft (51);

The air duct body (40), the switching shaft (51) and the inner wall of the casing (10) jointly define an annular channel (H), at least part of channel sections between one surface of the partition plate (43) and the air inlet (12) form the first extension air duct (24), and at least part of channel sections between the other surface of the partition plate (43) and the air inlet (12) form the second extension air duct (34).

16. The tuyere according to claim 15, characterized in that a first blocking wall (13) is provided on the inner wall of the casing (10), a second blocking wall (44) is provided on the air duct body (40), the air inlet (12) is located between the first blocking wall (13) and the second blocking wall (44), the first blocking wall (13) defines the first inlet (22), and the second blocking wall (44) defines the second inlet (32);

the switching plate (52) is respectively abutted against the first stop wall (13) and the second stop wall (44) when rotating around the axis, the first inlet (22) is closed when the switching plate (52) is abutted against the first stop wall (13), and the second inlet (32) is closed when the switching plate (52) is abutted against the second stop wall (44).

17. The tuyere according to claim 16, characterized in that the air inlet (12) and the switching shaft (51) are arranged at intervals along the second direction (S), and the air inlet (12) and the switching shaft (51) are both located on the same side of the air duct body (40), and the distance between the air inlet (12) and the inlet (331) of the second main air duct is smaller than the distance between the air inlet (12) and the inlet (231) of the first main air duct.

18. The tuyere according to claim 15, characterized in that a spacer (431) is provided at an end of the partition plate (43), and a contour shape of a side surface of the spacer (431) facing the switching shaft (51) matches an outer circumferential surface of the switching shaft (51).

19. The tuyere according to claim 18, characterized in that the inner wall of the casing (10) is further provided with a first mounting groove (5311), and at least part of the structure of the partition plate (43) is inserted and mounted in the first mounting groove (5311).

20. The tuyere according to claim 16, characterized in that the casing (10) comprises a first side wall (15) and a second side wall (16) disposed opposite to each other along the first direction (F), a first end of the switching shaft (51) is rotatably connected to the first side wall (15), and a second end of the switching shaft (51) is rotatably connected to the second side wall (16).

21. The tuyere according to claim 20, characterized in that the first side wall (15) is provided with a second mounting groove (151), and an inner groove wall of the second mounting groove (151) is provided with a plurality of protruding ribs (152), the plurality of protruding ribs (152) enclosing a circle around the axis;

The first end of the switching shaft (51) is inserted into the second mounting groove (151) and abuts against each of the protruding ribs (152), respectively.

22. The tuyere according to claim 21, characterized in that a partial groove section of the second mounting groove (151) is provided with a dodging port (1511) for dodging the turning action of the switching plate (52);

When the switching plate (52) is abutted against the first stop wall (13), the switching plate (52) is abutted against one edge of the avoidance port (1511);

When the switching plate (52) is abutted against the second stop wall (44), the switching plate (52) is abutted against the other edge of the escape opening (1511).

23. The tuyere of claim 20, characterized in that the tuyere (100) further comprises an operating assembly (60), the operating assembly (60) comprises a knob (61), the switching member (50) further comprises a driving disc (53), the driving disc (53) is connected to the second end of the switching shaft (51), the driving disc (53) is rotatably connected to the second side wall (16) such that the other end of the switching shaft (51) is rotatably connected to the second side wall (16);

One side of the transmission disc (53) deviating from the switching shaft (51) is provided with a first matching part (531), the first matching part (531) penetrates through the second side wall (16) and extends out of the shell (10), and the knob (61) is located outside the shell (10) and connected to the first matching part (531) of the transmission disc (53).

24. The tuyere according to claim 23, characterized in that a second mating portion (611) is provided on a surface of the knob (61) facing the driving plate (53), a groove (5311) is provided on a top surface of the second mating portion (611), and the first mating portion (531) is sleeved in the groove (5311).

25. The tuyere of claim 23, wherein an opening (612) is provided on the knob (61) to expose a part of the structure of the driving disc (53), and the operating assembly (60) further comprises a knob cover (62), and the knob cover (62) is clamped to the knob (61) and seals the opening (612).

26. The tuyere according to claim 23, characterized in that a stepped portion (532) is formed on a circumferential surface of the driving disc (53), the second side wall (16) is formed with a mounting hole (161), and an edge of the mounting hole (161) is clamped on the stepped portion (532) to rotatably connect the driving disc (53) to the second side wall (16).

27. A hair care appliance, comprising a tuyere (100) according to any of claims 1-26.