CN110876579A

CN110876579A - Dust collector

Info

Publication number: CN110876579A
Application number: CN201811637576.3A
Authority: CN
Inventors: 王旭宁
Original assignee: Shang Kening Family (china) Technology Co Ltd
Current assignee: Shang Kening Family (china) Technology Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-03-13

Abstract

The present application discloses a vacuum cleaner, which includes a hand-held part, a surface cleaning head and a hollow rod. comprising a first section and a second section that are relatively rotatable about a first axis, the surface cleaning head and neck section are rotatable relative to the surface cleaning head about a second axis, the The vacuum cleaner has a storage configuration in which the handle's center of gravity is above the surface cleaning head. The vacuum cleaner in the present application has two configurations, and the switching between the two configurations is convenient and quick. In the storage configuration, the vacuum cleaner can be placed anywhere without resorting to external walls and other components, and the vacuum cleaner can be placed wherever it is used.

Description

Dust collector

Technical Field

The application belongs to the technical field of cleaning appliances, and particularly relates to a dust collector.

Background

The existing vacuum cleaner generally includes a vacuum cleaner body, a cleaning head, a suction pipe for communicating the cleaning head with the vacuum cleaner body, and a conductive assembly for communicating a circuit of the vacuum cleaner body and the cleaning head, wherein under the control of the vacuum cleaner body, power is guided to the cleaning head through the conductive assembly to start the cleaning head to work. However, as the life is improved, the number of furnishings in the house is increased, and the cleaning work of the house is inconvenient, so that the handheld vacuum cleaner is more and more favored by consumers.

The existing hand-held dust collector generally has the following defects:

the dust collection device can not rapidly and conveniently realize multi-angle and omnibearing dust collection, for example, the dust collection work of the floor at the bottom of a bed, a table or a cabinet can only be plugged into the bottom of a bench or the cabinet by the way that people crouch down or lie prone, so that the cleaning work is very tired;

the dust collector body arranged at the top end of the dust collection pipe is integrated with a motor, a battery, a separation unit and other components, so that the dust collector body is heavy, if the dust collector body leans against a wall surface, a cleaning head is supported on the ground, the storage of the whole dust collector part is extremely unstable due to the heavy weight of the dust collector body, and if an opposite surface does not exist at a position opposite to the wall surface to limit the cleaning head, the whole dust collector is easy to slip off from the wall surface and is inconvenient to store; if the cleaner body part with larger weight is supported by the ground and the cleaning head is held on the wall, the wall surface can be polluted by dirty parts such as the cleaning head brush roller, the brush and the like, and the wall surface is not accepted by a user; therefore, in order to store the handheld dust collector conveniently, a user can select the dust collector to be laid flat, even disassemble the dust collector to reduce the occupied space, but the disassembling mode enables the user to be required to reassemble the dust collector when the user uses the dust collector again, and extra operations such as correct assembly relation among all parts are required to be guaranteed, so that the user experience is greatly reduced.

Currently, there is a vacuum cleaner on the market comprising a suction wand, a handheld suction unit and a docking station for mounting the cleaner on a wall, the docking station being arranged for releasably locking the vacuum cleaner in an upright, docked position on a wall when not in use. For such a vacuum cleaner, the user needs to select a certain wall location for the docking station to be installed, which not only increases the cost, but also the user needs to move the vacuum cleaner to the docking station for storage when the vacuum cleaner needs to be stored, which cannot realize the "storage and storage with the ground" of the vacuum cleaner.

It will thus be seen that the prior art is susceptible to further improvements and enhancements.

Disclosure of Invention

The utility model provides a weak point for avoiding above-mentioned prior art to exist, provides a convenient storage, accomodates and convenience of customers easily cleans regional dust catcher in furniture below.

The technical scheme adopted by the application is as follows:

the utility model provides a dust catcher, is including handheld portion, surface cleaning head and the hollow rod that is equipped with the air current generation unit, hollow rod first end links to each other with handheld portion air current entry, and the second end links to each other with surface cleaning neck portion, the hollow rod includes first district section and second district section, first district section and second district section can rotate relatively around first axis, surface cleaning neck portion can rotate around the relative surface cleaning head of second axis, the dust catcher has storage configuration, in storage configuration, handheld portion focus is located the top of surface cleaning head.

The surface cleaning head has a leading roller and a trailing support wheel, and in the storage configuration, the handle center of gravity is located between the leading roller axis and the trailing support wheel axis.

The surface cleaning head also has a brush roll positioned between the leading roller and the trailing support wheel, and the handle center of gravity is positioned above the brush roll in the storage configuration.

In the storage configuration, the second section is inclined rearwardly and at an angle of 75-88 to the surface being cleaned.

The neck includes an upper pivot joint connected to the second end of the hollow wand and a lower pivot joint connected to the surface cleaning head, the upper pivot joint being pivotable relative to the lower pivot joint about a third axis.

The vacuum cleaner also includes a first latch for limiting rotation between the lower pivot joint and the surface cleaning head, the first latch limiting rearward rotation of the lower pivot joint relative to the surface cleaning head in the storage configuration.

A butting part is arranged between the upper pivoting joint and the surface cleaning head; in the storage configuration, the abutment limits continued forward rotation of the lower pivot joint relative to the surface cleaning head about the second axis.

The abutment portion comprises a first abutment surface provided at the surface cleaning head and a second abutment surface provided at the lower end of the upper pivot joint, the first and second abutment surfaces being in abutting engagement in the storage configuration.

A guide limiting part is arranged between the upper pivot joint and the surface cleaning head and used for guiding the lower pivot joint and the surface cleaning head to rotate around a second axis and preventing the upper pivot joint from swinging left and right around a third axis relative to the surface cleaning head in a storage configuration.

The guide limiting part comprises a guide limiting groove and a guide limiting bulge matched with the guide limiting groove, and at least part of the guide limiting groove or the guide limiting bulge is arranged on the surface cleaning head.

A second latch is included for limiting relative rotation of the first and second segments about the first axis in the storage configuration.

The second locking part comprises a lock catch and a lock tongue matched with the lock catch, the lock catch is fixed with the first section, the lock tongue is fixed with the second section, or the lock catch is fixed with the second section, and the lock tongue is fixed with the first section.

Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:

1. the dust collector in this application has use configuration and storage configuration, "folding arm" technique that the cavity pole adopted provides the support for "standing everywhere" of dust collector, has made things convenient for user's storage and accomodate more the dust collector. Furthermore, in the storage configuration, the handle is adjacent the top of the surface cleaning head, thereby providing a lower centre of gravity for the overall cleaner, increasing storage and storage stability, and enabling the cleaner to be used and stored at any time.

2. In the application, the locking part is arranged between the lower pivoting joint and the surface cleaning head, so that the lower pivoting joint is prevented from rotating backwards relative to the surface cleaning head in the storage process, and the storage stability is ensured; an abutting part is arranged between the upper pivot joint and the surface cleaning head, and the abutting part is arranged to limit the lower pivot joint to rotate forwards relative to the surface cleaning head in a storage configuration, so that the storage stability is ensured. On the other hand, in this application, be provided with the spacing portion of direction between pivot joint and the surface cleaning head down, this spacing portion of direction has avoided the horizontal hunting of last pivot joint around the third axis to a certain extent, has further guaranteed the stability of storage.

3. The cavity pole of dust catcher has adopted "folding arm" structure in this application, and this structure more accords with user's ergonomic design, especially when sweeping some low ground regions, like region such as table bottom, cabinet bottom, bed bottom, the user need not to bow or bow and can accomplish the cleanness to corresponding position, has prevented back damage, psoatic strain etc. in the cleaning process effectively, makes whole cleaning process become lighter, laborsaving.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 shows a schematic diagram of a state change of the first section and the second section from a flat state to a bent state in the present application.

Figure 2 shows a schematic view of the surface cleaning head of the vacuum cleaner described herein in a storage configuration.

Figure 3 shows a schematic view of the surface cleaning head of the vacuum cleaner in one of its use configurations.

Figure 4 shows a schematic view of the relative positions of the upper and lower pivot joints and the rear support wheel described in this application in one of the conditions of use of the cleaner.

Figure 5 shows a schematic view of the surface cleaning head of the vacuum cleaner of the present application in one of its states.

Fig. 6 is a schematic view showing the relative position of the surface cleaning head and the lower pivot joint in one of the states of the vacuum cleaner of the present application, and particularly showing the relative position of the components in the first locking portion.

Fig. 7 is a partially enlarged view of fig. 6.

Fig. 8 shows a schematic view of the relative position of the surface cleaning head and the lower pivot joint of the vacuum cleaner in the storage configuration of the present application, and in particular of the components of the first latch.

Fig. 9 is a partially enlarged view of fig. 8.

Figure 10 shows a schematic view of the relative position of the surface cleaning head and the lower pivot joint of the vacuum cleaner in the storage configuration of the present application, and in particular of the components in the abutment.

Fig. 11 is a schematic view showing a state where the second locking portion releases the locking of the first and second segments.

Wherein,

1. the cleaning device comprises a handheld part 2, a surface cleaning head 21, a rear supporting wheel 22, a brush roller 23, a front guide roller 3, a first section 4, a second section 5, an upper pivot joint 6, a lower pivot joint 7, a first locking part 71, a clamping part 72, a connecting part 73, a limiting part 74, an elastic piece 8, an abutting part 81, an abutting groove 811, a second abutting surface 812, a second guide inclined surface 82, an abutting block 821, a first abutting surface 822, a first guide inclined surface 9, a guide limiting bulge 10, a flexible gas passage 11, a lock catch 12, a lock tongue B-B, a second axis A-A and a third axis A-B

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationship shown in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 11, a vacuum cleaner comprises a hand-held portion 1 provided with an airflow generating unit, a surface cleaning head 2 and a hollow shaft.

The surface cleaning head 2 has a dirty air inlet for adsorbing dirt. The surface cleaning head 2 in this application refers to the part of the cleaner that contacts the surface to be cleaned and includes a housing, roller elements that contact the floor, wheel elements, and a suction channel connected to the handpiece 1. The technical improvement point provided by the application is not particularly limited to the specific structures of the roller, the wheel element and the air suction channel of the surface cleaning head 2, therefore, the surface cleaning head 2 can have different structural forms in the embodiment of the application, such as the specification of the roller, the arrangement mode of the hairbrush, the connection mode of the roller and the power unit, and the like, and can be set according to different requirements.

The hand-held portion 1 includes a handle, an airflow generation unit, an airflow inlet, a clean air outlet, a power supply unit, and a separation unit. The air flow generating unit comprises a suction motor and a fan, the air flow generating unit is used for generating air flow, the hollow rod provides an air passage for the air flow generating unit and the cleaning head, and the air flow enters from the dirty air inlet, is separated and settled by the separating unit to remove impurities and finally flows out from the clean air outlet.

The hollow wand has a first end and a second end, and the surface cleaning head 2 has a neck. The first end is connected to the airflow inlet of the handpiece 1 and the second end is connected to the neck of the surface cleaning head 2. The hollow wand is adapted to provide a gas path for allowing air to flow from the surface cleaning head 2 to the airflow inlet of the handpiece 1 and has at least a portion of a flexible gas path 10.

The hollow pole also has a first section 3 and a second section 4 pivotally connected together by a first pivot assembly, specifically, the first pivot assembly has a first axis about which the first and second sections 3, 4 are relatively rotatable. The surface cleaning head 2 has a second pivot assembly by which the neck is pivotally connected to the surface cleaning head 2 such that the hollow wand is adapted to be switched between a horizontal condition, an inclined condition and a substantially vertical condition to facilitate cleaning of the surface to be cleaned. In particular, the second pivot assembly has a second axis B-B about which the neck is rotatable relative to the surface cleaning head 2. In the present application, the second axis B-B is substantially parallel to the axle of the rear support wheel 21 described below.

The vacuum cleaner in this application has a use configuration and a storage configuration. The first section 3 is foldable about the first axis in a forward direction by about 180 °. As a preferred embodiment of the present application, the first section 3 is less long than 3/4 of the length of the second section 4. So that in the storage configuration the handle 1 can be located above the surface cleaning head 2 and adjacent the top of the surface cleaning head 2, reducing the size of the storage configuration of the cleaner and allowing free placement and storage.

Many users use the dust catcher to clean such as at the bottom of the table, at the bottom of the cabinet, at the bottom of the sofa, at the bottom of the bed low position region time, the straight-bar molding of dust catcher often makes the dust catcher pole touch the desk edge, at the bottom of the cupboard along, the sofa edge, the bed edge etc. position, consequently when cleaning this type of region, the user has to lie prone or can accomplish to clean by bending over, bends over and causes waist, back sprain, strain etc. easily with the process of lying over. In this application, but first district section 3 and second district section 4 relative rotation's design, and the proportion of first district section 3 and second district section 4 more is fit for user's ergonomic design, makes the user need not to bow when, can easily sweep the furniture bottom, lets the cleanness inhale to one end.

The dust collector breaks through the traditional straight rod operation mode, can realize 0-180 degrees of all-directional folding, does not need to bend down when a user uses the dust collector to clean, can clean the space which is difficult to touch such as furniture, a bed bottom and the like without moving the furniture, and is convenient for the user to operate.

As shown in fig. 1, in the storage configuration, the centre of gravity G of the handpiece 1 is located above the surface cleaning head 2. Since the hand-held portion 1 includes a handle, an airflow generating unit, an airflow inlet, a clean air outlet, a power supply unit, a separating unit, etc., the hand-held portion 1 becomes a main weight portion of the cleaner. Preferably, in the storage configuration of the vacuum cleaner of the present application, the centre of gravity G of the handle 1 is located above the surface cleaning head 2 and close to the top of the surface cleaning head 2, thereby providing a lower centre of gravity position for the storage configuration of the vacuum cleaner, improving the storage stability of the vacuum cleaner.

In the in-use configuration, the centre of gravity G of the handpiece 1 as projected onto the surface being cleaned is located behind the surface cleaning head 2. Thereby, the gravity center of the dust collector is closer to the body position of a user, and the cleaning work is more labor-saving.

As shown in fig. 3, the surface cleaning head 2 further has a front guide roller 23, a rear support roller 21, and a brush roller 22 between the front guide roller 23 and the rear support roller 21. As shown in fig. 1, in the storage configuration: if the centre of gravity G of the hand-held part 1 is too far forward relative to the surface cleaning head 2, the hand-held part 1 will exert a force and moment tending to tilt forward on the hollow wand and neck, which tends to cause the cleaner to tilt forward and be inconvenient to store; if the centre of gravity G of the handpiece 1 is too far back relative to the surface cleaning head 2, the handpiece 1 will exert a force and moment on the hollow wand and neck tending to tip backwards, which tends to cause the cleaner to lean backwards and be inconvenient to store. Preferably, therefore, in the storage configuration, the centre of gravity of the handpiece 1 is located between the axis of the leading roller 23 and the axis of the rear support wheel 21, and the centre of gravity of the handpiece 1 is located above the brush roller 22.

In the storage configuration, the second section 4 is inclined rearwardly and at an angle of 75-88 to the surface to be cleaned. The second section 4 tilts backwards, so that the dust collector can be stored more conveniently and stably, and compared with a storage mode that the second section 4 is vertical to the surface to be cleaned, in the invention, the component force of the gravity of the handheld part 1 and the first section 3 acting on the flexible gas passage 10 between the first section 3 and the second section 4 is reduced by tilting the second section 4 backwards, so that the tensile force on the flexible gas passage 10 is reduced, the flexible gas passage 10 is effectively protected, and the probability of buckling failure of the flexible gas passage 10 is greatly reduced.

Meanwhile, the second section 4 tilts backwards slightly, so that the dust collector can be stored without depending on external articles, and a user can store and store the dust collector anywhere at any time according to actual conditions.

In the storage configuration, the first section 3 is bent forwardly about the first axis relative to the second section 4 and is angled at an angle of 170-185 ° to the second section 4 such that the handle 1 is positioned adjacent the top of the surface cleaning head 2 in the storage configuration, lowering the centre of gravity of the overall cleaner and making storage more stable.

Furthermore, as shown in figure 11, the cleaner further comprises a second latch for limiting the mutual rotation of the first and second sections 3, 4 about the first axis in the storage configuration. The second locking part comprises a lock catch 11 and a lock tongue 12 matched with the lock catch 11, the lock catch 11 is fixed with the first section 3, the lock tongue 12 is fixed with the second section 4, or the lock catch is fixed with the second section 4, and the lock tongue is fixed with the first section 3. The second latch locks the first and second sections 3, 4 in the maximum folded position of the first section 3 (i.e. the position in which the first section 3 is in the storage configuration), thereby preventing further rotation of the first section 3 and ensuring storage stability.

As shown in fig. 2 and 5, the neck comprises an upper pivot joint 5 connected to the second end of the hollow wand and a lower pivot joint 6 connected to the surface cleaning head 2. The upper pivot joint 5 and the lower pivot joint 6 are pivotally connected by a third pivot assembly, in particular having a third axis a-a about which the upper pivot joint 5 is pivotable relative to the lower pivot joint 6.

In the use configuration, the third axis A-A forms an included angle of-10 degrees to 25 degrees with the surface to be cleaned, and more preferably, in the use configuration, the third axis A-A is approximately parallel to the surface to be cleaned, so that the arm of an operator only needs to move in a small range of the chest area, and only needs to move a small amplitude to realize the steering of the cleaning head, the action amplitude of the operator is reduced, and the cleaning head is particularly suitable for cleaning relatively narrow spaces and is pleasant to user experience.

Preferably, in the present application, the upper pivot joint 5 is detachably connected to one end of the second section 4, and the lower pivot joint 6 is hingedly connected to the surface cleaning head 2. The upper pivot joint 5 at least partially encases the lower pivot joint 6.

As shown in fig. 6 to 9, the cleaner further comprises a first locking portion 7 for limiting rotation between the lower pivot joint 6 and the surface cleaning head 2, and in the storage configuration, the first locking portion 7 limits the lower pivot joint 6 from rotating backwards relative to the surface cleaning head 2, so that tilting of the cleaner caused by tilting the hollow wand and the handle 1 backwards is avoided, and storage stability is improved. The first locking portion 7 is configured to: when the torque applied to the hollow wand or the lower pivot joint 6 is greater than a predetermined threshold, the first locking portion 7 releases the locking of the lower pivot joint 6, the lower pivot joint 6 being able to rotate about the second axis B-B to return the cleaner to the in-use configuration. That is, when the vacuum cleaner needs to be stored, by pushing the second section 4 forward until the first locking portion 7 locks the second section 4, when the user needs to continue to use the vacuum cleaner, the user only needs to apply a backward force on the handle 1, the hollow rod, the upper pivot joint 5 and the lower pivot joint 6, so that the moment generated by the force acting on the second axis B-B is larger than the maximum limit moment (i.e. the predetermined threshold) that can be provided by the first locking portion 7, and the first locking portion 7 releases the limitation on the lower pivot joint 6.

Furthermore, the first latch 7 is also capable of limiting the downward rotation of the surface cleaning head 2 when the cleaner is moved in the storage configuration, and when the surface cleaning head 2 is in a horizontal position, the force of gravity of the surface cleaning head 2 is the greatest at the second axis B-B, which is less than the maximum limiting force (i.e. a predetermined threshold) that the first latch 7 is capable of providing, so that the relative position between the surface cleaning head 2 and the lower pivot joint 6 is stable, free movement or swinging does not occur, and the probability of damage to the surface cleaning head 2 is reduced during movement of the cleaner in the storage configuration.

As shown in fig. 6 and 9, the first locking portion 7 includes a clamping portion 71 connected to the lower pivot joint 6, a connecting portion 72 movably connected to the surface cleaning head 2, a limiting portion 73 disposed at an end of the connecting portion 72, and an elastic member 74 for limiting the movement of the limiting portion 73 away from the clamping portion 71, and the limiting portion 73 and the clamping portion 71 are in clamping fit, so that in the storage configuration, in the circumferential direction of the second axis B-B, the limiting portion 73 abuts against the clamping portion 71, so that the limiting portion 73 can limit the movement of the clamping portion 71, and further the lower pivot joint 6 is locked to prevent the movement. Specifically, connecting portion 72 is vertical to be set up and the lower extreme with surface cleaning head 2 is articulated mutually, elastic component 74 is including setting up the spring that deviates from joint portion 71 one side at connecting portion 72, the both ends of spring respectively with surface cleaning head 2 with connecting portion 72 butt.

An abutting part 8 is arranged between the upper pivoting joint 5 and the surface cleaning head 2; in the storage configuration, the abutment 8 limits the lower pivot joint 6 from continuing forward rotation relative to the surface cleaning head 2 about the second axis B-B, so that the stability of the entire cleaner in the stowed condition can be maintained.

The abutment 8 comprises a first abutment surface provided on the surface cleaning head 2 and a second abutment surface provided at the lower end of the upper pivot joint 5, which are in abutting engagement in the storage configuration.

Specifically, as shown in fig. 10, the abutting portion 8 includes an abutting groove 81 provided at a front lower portion of the upper pivot joint 5 toward a top surface of the surface cleaning head 2 and an abutting block 82 provided at a lower end of the surface cleaning head 2, or the abutting portion 8 includes an abutting groove provided at the surface cleaning head 2 and an abutting block provided at a lower end of the upper pivot joint 5, and the abutting block 82 is inserted into the abutting groove 81 in the storage configuration to restrict the left-right movement of the lower pivot joint 6. The surfaces of the abutting block 82 and the abutting groove 81 which are opposite to each other form the first abutting surface and the second abutting surface. That is, an end surface of the abutting block 82 facing the abutting groove 81 constitutes the first abutting surface 821, and a surface of the abutting groove 81 facing the first abutting surface and blocking further movement of the abutting block 82 constitutes the second abutting surface 811. The first and second abutment surfaces 821, 811 cooperate to limit further forward rotation of the lower pivot joint 6 relative to the surface cleaning head 2 about the second axis B-B in the storage configuration of the cleaner.

Preferably, the width of the butt joint block 82 gradually increases or decreases from one end to the other end, the width of the butt joint groove 81 is matched with the width of the butt joint block 82, and also gradually decreases or increases from one end to the other end, so that the user can conveniently rotate the handheld portion 1 or the hollow rod, the butt joint block 82 can be rapidly inserted into the butt joint groove 81, and the alignment difficulty is reduced.

In the storage configuration, the third axis A-A is at an angle of 110-160 to the horizontal. On the one hand, this feature enables the upper pivot joint 5 to conform to a front-long and rear-short structure, and enables the upper pivot joint 5 to be provided with an abutting groove 81 or an abutting block 82 at a front lower portion for restricting the lower pivot joint 6 from continuing forward rotation relative to the surface cleaning head 2, that is, the housing front end of the upper pivot joint 5 is sufficient for both the provision of the abutting groove 81 or the abutting block 82 and the provision of the third pivot assembly at a sufficient position. On the other hand, the arrangement mode of the third axis A-A enables the moving area of the arm and the wrist of the user to be more in line with the human engineering when the upper pivot joint 5 deflects relative to the lower pivot joint 6 in the use process, and the user experience is improved, and the convenience and the comfort are realized. Furthermore, the axial direction of the third axis a-a, as seen from the side of the cleaner, corresponds to the arrangement of the cleaner being low in front and high in back, thus forming the obtuse angle of 110 ° -160 °, in this embodiment the third axis a-a runs such that in the storage configuration the moment of gravity of the handpiece 1 in the direction of the third axis a-a is smaller than in the arrangement of the cleaner being high in front and low in back, thus preventing the upper pivot joint 5 from swinging to the left and right about the third axis a-a relative to the surface cleaning head 2 in the storage configuration.

A guide limit portion is provided between the upper pivot joint 5 and the surface cleaning head 2 for guiding the lower pivot joint 6 and the surface cleaning head 2 to rotate about the second axis B-B to prevent the upper pivot joint 5 from swinging side to side relative to the surface cleaning head 2 about the third axis a-a in the storage configuration. The guide limiting part comprises a guide limiting groove and a guide limiting bulge 9 matched with the guide limiting groove, and at least part of the guide limiting groove or the guide limiting bulge 9 is arranged on the surface cleaning head 2.

As a preferred embodiment of the present application, as shown in fig. 5, the guiding limiting protrusion is the abutting block 82, the guiding limiting groove is the abutting groove 81, the width of the abutting block 82 and the gradual change of the width of the abutting groove 81 from one side to the other side can form a guiding inclined plane which is adapted to each other, for example, two opposite sides of the abutting block 82 respectively form a first guiding inclined plane 822, two opposite sides of the abutting groove 81 respectively form a second guiding inclined plane 811, and the guiding inclined plane can be used as a guiding and limiting in the "joining" process of the abutting block 82 and the abutting groove 81 to guide the joining of the abutting block 82 and the abutting groove 81, so that the whole joining process is smoother. In addition, after the butt joint block 82 and the butt joint groove 81 are in clamping fit, the upper pivot joint 5 is limited, and the upper pivot joint 5 is prevented from swinging left and right around the third axis A-A, so that the storage stability of the dust collector is ensured.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a dust catcher, is including handheld portion, surface cleaning head and the hollow rod that is equipped with the air current generating unit, hollow rod first end links to each other with handheld portion air current entry, and the second tip links to each other its characterized in that with surface cleaning neck portion: the hollow wand comprises a first section and a second section, the first and second sections being relatively rotatable about a first axis, the surface cleaning head and neck being rotatable about a second axis relative to the surface cleaning head, the cleaner having a storage configuration in which the centre of gravity of the hand grip is above the surface cleaning head.

2. The vacuum cleaner of claim 1, wherein: the surface cleaning head has a leading roller and a trailing support wheel, and in the storage configuration, the handle center of gravity is located between the leading roller axis and the trailing support wheel axis.

3. The vacuum cleaner of claim 2, wherein: the surface cleaning head also has a brush roll positioned between the leading roller and the trailing support wheel, and the handle center of gravity is positioned above the brush roll in the storage configuration.

4. The vacuum cleaner of claim 1, wherein: the neck includes an upper pivot joint connected to the second end of the hollow wand and a lower pivot joint connected to the surface cleaning head, the upper pivot joint being pivotable relative to the lower pivot joint about a third axis.

5. The vacuum cleaner of claim 4, wherein: a first locking feature is included for limiting rotation between the lower pivot joint and the surface cleaning head, the first locking feature limiting rearward rotation of the lower pivot joint relative to the surface cleaning head in the storage configuration.

6. The vacuum cleaner of claim 4, wherein: a butting part is arranged between the upper pivoting joint and the surface cleaning head; in the storage configuration, the abutment limits continued forward rotation of the lower pivot joint relative to the surface cleaning head about the second axis.

7. The vacuum cleaner of claim 6, wherein: the abutment portion comprises a first abutment surface provided at the surface cleaning head and a second abutment surface provided at the lower end of the upper pivot joint, the first and second abutment surfaces being in abutting engagement in the storage configuration.

8. The vacuum cleaner of claim 4, wherein: a guide limit part is arranged between the upper pivot joint and the surface cleaning head and is used for guiding the lower pivot joint and the surface cleaning head to rotate around a second axis and preventing the upper pivot joint from swinging left and right relative to the surface cleaning head around a third axis in a storage configuration.

9. The vacuum cleaner of claim 8, wherein: the guide limiting part comprises a guide limiting groove and a guide limiting bulge matched with the guide limiting groove, and at least part of the guide limiting groove or the guide limiting bulge is arranged on the surface cleaning head.

10. The vacuum cleaner of claim 1, wherein: a second latch is included for limiting relative rotation of the first and second segments about the first axis in the storage configuration.