CN222024965U - Air pipe and blowing and sucking machine - Google Patents

Abstract

The utility model provides an air duct and a blower and vacuum cleaner, the air duct comprising: a tube body; a roller assembly, the roller assembly comprising a roller bracket and a roller, the roller being rotatably connected to the roller bracket, the roller bracket being located on the outside of the tube body; the roller bracket being movably arranged relative to the tube body, so that the distance between the roller and the tube body at least in the radial direction of the tube body is adjustable; and a first locking unit, arranged on the tube body and/or the roller bracket, the first locking unit being assembled to be able to keep the roller bracket at any position within its movable stroke, and to be able to release the roller bracket from any position within its movable stroke. The air duct realizes the adjustment of the tube body in other directions except along its length direction, and the roller bracket is kept at any position by locking and releasing the first locking unit, thereby realizing the adjustment of the air duct at various angles, so that the blower and vacuum cleaner can better adapt to different road conditions and users.

Description

Air pipe and blowing and sucking machine

Technical Field

The utility model relates to the technical field of garden machine tools, in particular to an air pipe and an air blower.

Background

The leaf blowing and sucking machine is one kind of outdoor cleaning tool and is used mainly in cleaning and collecting fallen leaves. The leaves and dust on the ground are blown away by blowing or are collected into the bag by induced draft and crushed before entering the bag. The existing leaf blowing and sucking machine is usually provided with wheels on an air pipe, but most of the wheels are fixed on the air pipe or only can be adjusted in height, so that the existing leaf blowing and sucking machine cannot be effectively adapted to different road conditions and users, and inconvenience is brought to the use of the users.

Disclosure of utility model

In view of the above drawbacks of the prior art, the present utility model provides an air duct and a blower, so as to solve the technical problem of inconvenient adjustment of wheels of the blower.

To achieve the above and other related objects, the present utility model provides an air duct comprising: a tube body; the roller assembly comprises a roller bracket and a roller, the roller is rotationally connected with the roller bracket, and the roller bracket is positioned at the outer side of the pipe body; the roller support is movably arranged relative to the pipe body, so that the distance between the roller and the pipe body at least in the radial direction of the pipe body is adjustable; and a first locking unit provided to the pipe body and/or the roller bracket, the first locking unit being configured to be able to hold the roller bracket at an arbitrary position within its movable stroke and to be able to release the roller bracket from an arbitrary position within its movable stroke.

In an embodiment of the present utility model, an installation portion is provided on an outer wall of the pipe body, and the roller support is rotatably connected with the installation portion through a rotating shaft.

In an embodiment of the present utility model, the first locking unit includes a screw coupled to the roller bracket or the mounting portion in a direction parallel to the rotation axis, and a nut screw coupled to the screw, the nut being configured to clamp or unclamp the mounting portion or the roller bracket when it rotates relative to the screw.

In an embodiment of the present utility model, a first elastic element is disposed between the roller bracket and the mounting portion, and the first elastic element is configured such that an elastic force of the first elastic element can drive the roller bracket to return to a specified position in a moving stroke of the roller bracket.

In an embodiment of the present utility model, the mounting portion is movably connected to the pipe body along a length direction of the pipe body, and a second locking unit is disposed between the mounting portion and the pipe body, and the second locking unit is configured to be capable of holding the mounting portion in at least two different locking positions within a movable stroke thereof, and capable of releasing the mounting portion from the locking positions.

In an embodiment of the present utility model, one of the tube body and the mounting portion is provided with a track, and the other is provided with a chute matched with the track.

In an embodiment of the present utility model, the second locking unit includes at least two positioning holes provided on the pipe body, and a positioning pin provided on the mounting portion and engaged with the positioning holes; the locating pin is movably connected with the mounting part along the direction parallel to the axis of the locating hole, so that the locating pin can be inserted into the locating hole or pulled out from the locating hole.

In an embodiment of the utility model, a second elastic element is disposed between the positioning pin and the mounting portion, and the second elastic element is assembled such that an elastic force of the second elastic element can drive the positioning pin to insert into the positioning hole.

In an embodiment of the utility model, the device further comprises a trigger unit, wherein the trigger unit is connected with the positioning pin, and the trigger unit is configured to drive the positioning pin to be pulled out of the positioning hole when the trigger unit is subjected to external force.

In order to achieve the above and other related objects, the present utility model also provides a blowing and sucking machine, comprising a main machine and an air pipe connected with the main machine; the tuber pipe includes: a tube body; the roller assembly comprises a roller bracket and a roller, the roller is rotationally connected with the roller bracket, and the roller bracket is positioned at the outer side of the pipe body; the roller support is movably arranged relative to the pipe body, so that the distance between the roller and the pipe body at least in the radial direction of the pipe body is adjustable; and a first locking unit provided to the pipe body and/or the roller bracket, the first locking unit being configured to be able to hold the roller bracket at an arbitrary position within its movable stroke and to be able to release the roller bracket from an arbitrary position within its movable stroke.

The utility model has the beneficial effects that: according to the air pipe and the blowing and sucking machine provided by the utility model, the roller assembly is arranged outside the pipe body, and comprises the roller support and the rollers, and the rollers at least can be adjusted in the radial direction of the pipe body and the distance between the rollers and the pipe body through the movable arrangement of the roller support, so that the adjustment of the pipe body in other directions except the length direction of the pipe body is realized, the roller support is kept at any position through the locking and the loosening of the first locking unit, the adjustment of various angles of the air pipe is realized, and the blowing and sucking machine can be better suitable for different road conditions and users.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another view angle structure of FIG. 1;

FIG. 3 is a schematic view of a hidden pipe according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the first housing hidden in FIG. 3;

FIG. 5 is a schematic view of another view structure of FIG. 3;

FIG. 6 is a schematic view of the second housing hidden in FIG. 5;

FIG. 7 is a schematic structural view of a first housing according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a second housing according to an embodiment of the present utility model;

FIG. 9 is a schematic structural diagram of a roller assembly according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a pipe according to an embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a positioning pin according to an embodiment of the utility model.

Reference numerals illustrate: 100. a tube body; 101. a track; 200. a roller assembly; 201. a roller bracket; 202. a roller; 301. a screw; 302. a nut; 400. a mounting part; 401. a chute; 402. a first housing; 403. a second housing; 500. a rotating shaft; 600. a first elastic element; 701. positioning holes; 702. a positioning pin; 800. a second elastic element; 900. and a trigger unit.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which is to be read in light of the following specific examples. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. In addition to the specific methods, devices, materials used in the embodiments, any methods, devices, and materials of the prior art similar or equivalent to those described in the embodiments of the present utility model may be used to practice the present utility model according to the knowledge of one skilled in the art and the description of the present utility model.

It is to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

The structures, proportions, sizes, etc. shown in the drawings are shown only in the drawings and should not be construed as limiting the practice of the utility model, since it is not essential to the art, since it is intended to be obvious and understood by those skilled in the art. Any structural modification, proportional change or size adjustment should still fall within the scope of the disclosure without affecting the efficacy and achievement of the present utility model. Moreover, the drawings only show the components related to the present utility model, not the number, shape and size of the components in actual implementation, the form, number and proportion of each component in actual implementation can be changed arbitrarily, and the layout of the components may be more complex.

In the utility model, the roller assembly 200 is arranged on the outer side of the pipe body 100, the roller assembly 200 comprises the roller support 201 and the roller 202, and the distance between the roller 202 and the pipe body 100 in the radial direction of the pipe body 100 can be at least adjustable through the movable arrangement of the roller support 201, so that the adjustment of the pipe body 100 in other directions except the length direction is realized, the roller support 201 is kept at any position through the locking and unlocking of the first locking unit, the adjustment of various angles of the air pipe is realized, and the blowing and sucking machine can be better suitable for different road conditions and users.

Referring to fig. 1, fig. 2, fig. 4 and fig. 9, fig. 1 and fig. 2 are diagrams illustrating an air duct according to an embodiment of the present utility model, including: a tube body 100; the roller assembly 200, the roller assembly 200 comprises a roller bracket 201 and a roller 202, the roller 202 is rotationally connected with the roller bracket 201, namely, the roller 202 is arranged on the roller bracket 201, the roller 202 can rotate, and the roller bracket 201 is positioned at the outer side of the pipe body 100; the roller support 201 is movably disposed relative to the pipe body 100, so that the distance between the roller 202 and the pipe body 100 at least in the radial direction of the pipe body 100 is adjustable, and it can be appreciated that when the roller 202 can move relative to the pipe body 100, it includes two moving modes, one moving along the length direction of the pipe body 100, the other moving along the radial direction of the pipe body 100, and when the distance along the radial direction of the pipe body 100 changes, more postures of the pipe body 100 can be adjusted, in this embodiment, the distance between the roller 202 and the pipe body 100 at least in the radial direction of the pipe body 100 can be changed, so that the posture of the pipe body 100 can be adjusted to adapt to different road conditions and users. The ductwork further includes a first locking unit provided to the tub 100 and/or the roller support 201, the first locking unit being configured to be able to hold the roller support 201 at any position within its active stroke and to be able to release the roller support 201 from any position within its active stroke.

After the first locking unit is set, when the user needs to adjust the pipe body 100, the user only needs to unlock the first locking unit to release the roller support 201 from any position in the moving stroke of the roller support 201, and at this time, the roller support 201 can adjust the position in any position in the moving stroke of the roller support until the roller support is adjusted to a proper position. When the roller 202 is adjusted to a proper position, the roller support 201 can be kept at the proper position by only locking the first locking unit, and the position of the roller 202 relative to the roller support 201 is fixed, so that the position of the roller 202 is fixed.

It should be understood that the first locking unit may be disposed on the pipe body 100, or may be disposed on the roller support 201, or a part of components of the first locking unit may be disposed on the pipe body 100, and another part of components may be disposed on the roller support 201.

Referring to fig. 1 to 8, in an embodiment of the present utility model, an installation portion 400 is provided on an outer wall of the tube body 100, and the installation portion 400 is provided to facilitate installation of the roller support 201. The roller support 201 is rotatably connected to the mounting portion 400 through the rotation shaft 500, so that the roller support 201 can rotate around the rotation shaft 500, thereby driving the roller 202 to rotate around the rotation shaft 500, and the rotation shaft 500 is shown in fig. 2 and 5.

Referring to fig. 5, in an embodiment of the present utility model, one end of the rotating shaft 500 is fixedly connected to the roller support 201, that is, the roller support 201 is disposed at one side of the mounting portion 400. In addition, the roller support 201 may be fixedly connected to the middle portion of the rotating shaft 500, that is, one end of the roller support 201 is disposed inside the mounting portion 400. Regardless of the manner of installation, it is only necessary to ensure that the roller support 201 is rotatable about the rotational axis 500.

Referring to fig. 5, in an embodiment of the present utility model, the roller support 201 is a sheet-shaped plate, and the roller 202 and the mounting portion 400 are mounted on the same side of the plate. The roller support 201 may also be formed of, for example, two symmetrical plates that sandwich the roller 202 and the mounting portion 400.

It will be appreciated that two rollers 202 may be provided, and two rollers 202 may be symmetrically provided at both sides of the roller bracket 201.

Referring to fig. 3 and 4, in an embodiment of the present utility model, the first locking unit includes a screw 301 and a nut 302, the screw 301 is connected to the roller bracket 201 or the mounting part 400 in a direction parallel to the rotation shaft 500, the nut 302 is screw-coupled to the screw 301, and the nut 302 is configured to clamp or unclamp the mounting part 400 or the roller bracket 201 when it rotates relative to the screw 301. In this embodiment, the screw 301 may be fixedly connected to the mounting portion 400, and the nut 302 and the mounting portion 400 clamp the roller bracket 201 therebetween; alternatively, the screw 301 may be fixedly connected to the roller holder 201, and the nut 302 and the roller holder 201 clamp the mounting portion 400 therebetween. When the nut 302 is rotated, the interval between the mounting part 400 or the roller bracket 201 and the nut 302 is changed, so that the roller bracket 201 or the mounting part 400 clamped in between can be clamped or unclamped, thereby achieving locking and unlocking.

Referring to fig. 3, in an embodiment of the present utility model, the nut 302 includes a rotation portion that is convenient for screwing, and the rotation portion is configured such that a user can directly rotate the nut 302 by hand without using other tools, so that the user can rotate the nut 302 in real time.

Referring to fig. 3 and 4, in an embodiment of the present utility model, an arc-shaped groove may be provided on the mounting portion 400, for example, for avoiding the screw 301, and two ends of the arc-shaped groove in the length direction may also limit the rotation angle of the roller 202. Specifically, the arc-shaped groove takes the shaft core of the rotating shaft 500 as the center of a circle, when the roller support 201 rotates around the rotating shaft 500, the roller support 201 drives the screw 301 to rotate together, the moving path of the screw 301 is exactly located in the arc-shaped groove, and when the screw 301 moves to two ends of the arc-shaped groove in the length direction, the screw 301 abuts against the groove wall of the arc-shaped groove and cannot move continuously, so that the continuous rotation of the roller support 201 is limited.

It will be appreciated that the specific structure of the arc-shaped groove may be set according to the structures of the screw 301 and the nut 302, and in an embodiment of the present utility model, the mounting portion 400 includes a first housing 402 and a second housing 403, and the arc-shaped groove formed on the second housing 403 is provided for the screw 301 to pass through, as shown in fig. 8; an arcuate recess is provided in the first housing 402 for a portion of the nut 302 to pass therethrough, as shown in fig. 7. Wherein the arc-shaped groove formed on the second housing 403 is smaller than the arc-shaped groove formed on the first housing 402, in this embodiment, the nut 302 and the roller bracket 201 clamp the second housing 403 therebetween. So configured, the threaded section of the nut 302 is long enough to facilitate the provision of the turning portion of the nut 302 as described in the above embodiments.

Referring to fig. 6, in an embodiment of the present utility model, a first elastic element 600 is disposed between the roller frame 201 and the mounting portion 400, and the first elastic element 600 is configured such that the elastic force thereof can drive the roller frame 201 to return to a specified position within the moving stroke thereof. The designated position may correspond to, for example, two ends or a middle position of the arc-shaped groove. In an embodiment of the present utility model, the designated position is a position of the roller 202 near the pipe body 100, as shown in fig. 1, after the setting, when the user unlocks the first locking unit, the roller support 201 drives the roller 202 to reset, so as to realize the storage of the roller 202.

Or the designated position corresponds to the middle position of the arc-shaped groove, and after the user unlocks the first locking unit, the roller bracket 201 is maintained at the middle position of the arc-shaped groove under the elastic force of the first elastic element 600. In some rough road conditions, the user can keep the first locking unit in an unlocking state when using the blowing and sucking machine, and the roller support 201 can automatically adjust the gesture according to different road conditions, so that the blowing and sucking machine is well adapted to the rough road conditions, and the first elastic element 600 also plays a role in shock absorption at the moment and further protects the blowing and sucking machine.

Referring to fig. 6, in an embodiment of the present utility model, for example, a torsion spring may be selected as the first elastic element 600, and is sleeved on the rotating shaft 500, one end of the torsion spring is fixed on the first housing 402, and the other end of the torsion spring is fixed to the connecting screw 301, so that the screw 301 needs to overcome the elastic force of the torsion spring to rotate around the rotating shaft 500.

Referring to fig. 1, 4 and 10, in an embodiment of the present utility model, the mounting portion 400 is movably connected to the pipe body 100 along the length direction of the pipe body 100, and a second locking unit is disposed between the mounting portion 400 and the pipe body 100, and is configured to be capable of holding the mounting portion 400 in at least two different locking positions within the movable stroke thereof, and releasing the mounting portion 400 from the locking positions. After the installation part 400 is movably connected with the pipe body 100, the position of the installation part 400 can be adjusted along the length direction of the pipe body 100, so that the height of the blowing and sucking machine can be adjusted, and then the position between the roller support 201 and the installation part 400 is adjusted in the embodiment, so that the posture of the pipe body 100 can be adjusted more flexibly, and the use of a user is more convenient.

It will be appreciated that the second locking unit functions similarly to the first locking unit for locking the roller bracket 201 and the mounting portion 400, and the second locking unit functions to lock the mounting portion 400 and the duct body 100, which simultaneously function to lock the respective components of the duct as a unit.

Referring to fig. 1 and 3, in an embodiment of the present utility model, one of the tube body 100 and the mounting portion 400 is provided with a track 101, and the other is provided with a sliding groove 401 matching with the track 101. By the cooperation of the rail 101 and the chute 401, the sliding direction of the mounting portion 400 can be reliably ensured. In one embodiment of the present utility model, the rail 101 is provided on the pipe body 100, and the chute 401 is provided on the mounting portion 400. Further, the mounting portion 400 is assembled by the first housing 402 and the second housing 403 so as to be mounted on the pipe body 100.

Referring to fig. 1, 4, 10 and 11, in an embodiment of the present utility model, the second locking unit includes at least two positioning holes 701 formed on the pipe body 100, and positioning pins 702 formed on the mounting portion 400 and engaged with the positioning holes 701; the positioning pin 702 is movably connected with the mounting portion 400 in a direction parallel to the axis of the positioning hole 701 so that the positioning pin 702 can be inserted into the positioning hole 701 or withdrawn from the positioning hole 701. Each positioning hole 701 corresponds to a locking position, and when the positioning pin 702 is inserted into the positioning hole 701, the mounting part 400 and the pipe body 100 are locked and cannot move; when the positioning pin 702 is withdrawn from the positioning hole 701, the positions of the mounting portion 400 and the pipe body 100 can be adjusted.

It is understood that the second locking unit may have a structure of a buckle and a slot, or may have a structure of a screw and a nut, for example, in addition to the above-mentioned structure of the positioning hole 701 and the positioning pin 702.

Referring to fig. 10, in an embodiment of the present utility model, the positioning holes 701 are disposed on the track 101 of the pipe body 100, and the positioning holes 701 may be uniformly spaced along the length direction of the pipe body 100.

Referring to fig. 4 and 11, in an embodiment of the present utility model, the trigger unit 900 is further included, where the trigger unit 900 is connected to the positioning pin 702, and the trigger unit 900 is configured to drive the positioning pin 702 to be pulled out from the positioning hole 701 when the trigger unit is subjected to an external force. The triggering unit 900 may be, for example, a button, where the button is fixedly connected to the positioning pin 702, the button is mounted on the mounting portion 400, and a pressing portion of the button is exposed on one side of the mounting portion 400, so that the user can press the button conveniently. The button may be integrally formed with the locating pin 702 as shown in fig. 11. The positioning pin 702 has a certain stroke from a state of being inserted into the positioning hole 701 to a state of being completely withdrawn from the positioning hole 701, and after the trigger unit 900 is set, the positioning pin 702 can be set smaller, so that the stroke of the positioning pin 702 can be shortened, and the volume of the second locking unit can be further reduced.

Referring to fig. 4, in an embodiment of the present utility model, a second elastic element 800 is disposed between the positioning pin 702 and the mounting portion 400, and the second elastic element 800 is assembled such that the elastic force thereof can drive the positioning pin 702 to insert into the positioning hole 701. After the second elastic element 800 is provided, the positioning pin 702 can be ensured to be in a state of being inserted into the positioning hole 701 in a normal state, that is, the second locking unit is in a daily locking state, and the positioning pin 702 is driven to be pulled out from the positioning hole 701 by pressing the button only when adjustment is needed. The second elastic element 800 may be, for example, a compression spring, which has a small volume and is convenient to install.

The utility model also provides a blowing and sucking machine, which comprises a host machine and an air pipe connected with the host machine, wherein the air pipe can adopt the structure described in any embodiment.

In general, the position of the roller 202 can be more flexibly adjusted by adopting the air duct in the utility model, so that the gesture of the air duct is more flexible; the blowing and sucking machine adopting the air pipe with the structure can be well adapted to various road conditions or people, and is worthy of popularization and use.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. An air duct, comprising:

A tube body;

The roller assembly comprises a roller bracket and a roller, the roller is rotationally connected with the roller bracket, and the roller bracket is positioned at the outer side of the pipe body; the roller support is movably arranged relative to the pipe body, so that the distance between the roller and the pipe body at least in the radial direction of the pipe body is adjustable; and

The first locking unit is arranged on the pipe body and/or the roller support, and is assembled to be capable of keeping the roller support at any position in the moving stroke of the roller support and releasing the roller support from any position in the moving stroke of the roller support.

2. The air duct of claim 1, wherein the outer wall of the duct body is provided with a mounting portion, and the roller bracket is rotatably connected with the mounting portion through a rotating shaft.

3. The ductwork according to claim 2, characterized in that said first locking unit includes a screw connected to said roller bracket or said mounting portion in a direction parallel to said rotation axis, and a nut screwed to said screw, said nut being fitted so as to be capable of clamping or unclamping said mounting portion or said roller bracket when it is rotated relative to said screw.

4. The air duct of claim 2, wherein a first resilient member is disposed between the roller bracket and the mounting portion, the first resilient member being configured such that its resilience urges the roller bracket back to a designated position within its active travel.

5. The air duct according to claim 2, characterized in that the mounting part is movably connected to the tube body in the length direction of the tube body, a second locking unit being arranged between the mounting part and the tube body, the second locking unit being fitted so as to be able to hold the mounting part in at least two different locking positions within its active travel and to be able to release the mounting part from the locking positions.

6. The duct of claim 5, wherein one of the body and the mounting portion is provided with a track and the other is provided with a chute that mates with the track.

7. The air duct of claim 5, wherein the second locking unit includes at least two positioning holes provided on the duct body, and a positioning pin provided on the mounting portion to be engaged with the positioning holes; the locating pin is movably connected with the mounting part along the direction parallel to the axis of the locating hole, so that the locating pin can be inserted into the locating hole or pulled out from the locating hole.

8. The air duct of claim 7, wherein a second resilient member is disposed between the locating pin and the mounting portion, the second resilient member being configured with a resilient force capable of urging the locating pin into the locating hole.

9. The air duct of claim 7, further comprising a trigger unit coupled to the locating pin, the trigger unit configured to drive the locating pin to withdraw from within the locating hole when subjected to an external force.

10. The blowing and sucking machine is characterized by comprising a host machine and an air pipe connected with the host machine; the tuber pipe includes:

A tube body;

The roller assembly comprises a roller bracket and a roller, the roller is rotationally connected with the roller bracket, and the roller bracket is positioned at the outer side of the pipe body; the roller support is movably arranged relative to the pipe body, so that the distance between the roller and the pipe body at least in the radial direction of the pipe body is adjustable; and

The first locking unit is arranged on the pipe body and/or the roller support, and is assembled to be capable of keeping the roller support at any position in the moving stroke of the roller support and releasing the roller support from any position in the moving stroke of the roller support.