CN106618381B

CN106618381B - Fan mechanism and assembling method thereof, head assembly and cleaning tool

Info

Publication number: CN106618381B
Application number: CN201710004993.3A
Authority: CN
Inventors: 邢振宇; 卞小贤
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2017-01-04
Filing date: 2017-01-04
Publication date: 2022-05-13
Anticipated expiration: 2037-01-04
Also published as: CN106618381A

Abstract

The invention discloses a fan mechanism, an assembling method thereof, a machine head assembly and a cleaning tool. The fan mechanism is adjacent to the dirt cup, includes: the fan comprises a shell and a matching part arranged on the shell; the supporting piece is connected to the dust cup and comprises a body enclosing an assembly cavity and a matched part arranged on the body, the body comprises a gap and two elastic arms separated by the gap, and the two elastic arms can move away from or close to each other to increase or decrease the width of the gap; wherein the support member has an expanded state and a contracted state; when the fan is in an opening state, the gap has a first width, and the fan can enter or exit the assembly cavity; when in a tightening state, the gap has a second width smaller than the first width, the matching part is matched with the matched part, and the support part is limited to the fan. Compared with the prior art, the invention can realize the quick and simple installation of the fan; the handle is kept away from to the fan, and greatly reduced vibration and noise avoid towards operator's health air-out, promote use comfort.

Description

Fan mechanism and assembling method thereof, head assembly and cleaning tool

Technical Field

The invention relates to a fan mechanism, an assembling method of the fan mechanism, a machine head assembly with the fan mechanism and a cleaning tool, and belongs to the technical field of small household appliance manufacturing.

Background

Portable cleaners generally comprise four major components: a handle assembly, a handpiece assembly, a linkage assembly and a workhead assembly for gripping by an operator, typically the linkage assembly comprises a rigid link or a rigid telescopic rod. The general structures are: the dust cup is arranged in front of the handle, and the portable dust collector head assembly is small in size and limited in space for design, so that the airflow generating device is generally arranged behind the dust cup, namely above, below or nearby the handle. Like this, the operator will have the relatively poor problem of comfort level at the in-process that uses the dust catcher, specifically embodies: 1. because the air outlet is arranged near the handle, the outlet air can blow to the face of an operator; 2. because the airflow generating device is arranged near the handle, the vibration of the airflow generating device during working is directly transmitted to the handle in a short path, so that the handle is violently shaken; 3. the airflow generating device is close to the ear of the operator, and the ear noise heard by the operator is relatively large. In addition, the installation and the disassembly of the airflow generating device are complicated and not simple enough, which affects the assembly efficiency of the dust collector.

Disclosure of Invention

The invention aims to provide a fan mechanism, an assembling method of the fan mechanism, a head assembly with the fan mechanism and a cleaning tool, and at least solves one of the problems of complex installation process, low use comfort and the like.

In order to achieve one of the above objects, an embodiment of the present invention provides a fan mechanism adjacent to a dirt cup, the fan mechanism including,

a blower comprising a blower housing; the fan also comprises a matching part arranged on the fan shell;

the supporting piece is connected to the dust cup and comprises a body enclosing an assembly cavity and a matched part arranged on the body, the body comprises a gap and two elastic arms separated by the gap, and the two elastic arms can move away from or close to each other to increase or decrease the width of the gap;

wherein the support member has an expanded state and a contracted state; when the fan is in the opening state, the gap has a first width, and the fan can enter or exit the assembly cavity; when in the tightened state, the gap has a second width smaller than the first width, the matching part is matched with the matched part, and the support part is used for limiting the fan.

As a further improvement of an embodiment of the present invention, two of the elastic arms are arranged to be mirror images of each other.

As a further improvement of an embodiment of the present invention, in the tightened state, the two elastic arms always have a tendency to approach each other to reduce the second width.

As a further improvement of an embodiment of the present invention, the mating portion is provided as a lug protruding out of the outer surface of the fan housing and the coupled portion is provided as a hole or a groove capable of accommodating the lug, or the coupled portion is provided as a lug protruding from the body to the mounting cavity and the coupling portion is provided as a hole or a groove capable of accommodating the lug.

As a further improvement of an embodiment of the present invention, the fan mechanism further includes a shock absorbing member, and the shock absorbing member is sleeved outside the fan housing and isolates the contact between the fan housing and the supporting member.

As a further improvement of an embodiment of the present invention, the shock absorbing member includes a sleeve sleeved outside the fan housing and a hollow rib protruding out of an outer surface of the sleeve, and the main body is in contact with the hollow rib.

As a further improvement of an embodiment of the present invention, the hollow ribs are provided in a cylindrical shape arranged at intervals in an axial direction of the sleeve, and the hollow ribs include guide slopes defining upper end surfaces thereof, the guide slopes extending obliquely downward in a direction away from an outer surface of the sleeve.

As a further improvement of an embodiment of the present invention, the shock absorbing member further includes an abutting portion, the abutting portion includes a first wall and a second wall which are oppositely disposed, and a cavity surrounded by the first wall; in the tightened state, one of the mating part and the mated part is accommodated in the cavity and is in fit contact with the first wall, and the other of the mating part and the mated part is in fit contact with the second wall.

In order to achieve one of the above objects, an embodiment of the present invention further provides an assembling method of a fan mechanism, the fan mechanism being adjacent to a dirt cup, the assembling method including the steps of:

providing a fan; the fan comprises a fan shell and a matching part arranged on the fan shell;

providing a support member connected to the dirt cup; the supporting piece comprises a body enclosing an assembly cavity and an assembled part arranged on the body, the body comprises a gap and two elastic arms separated by the gap, and the two elastic arms can move away from or close to each other to increase or decrease the width of the gap;

keeping the supporting piece in an opening state and enabling the fan to enter the assembling cavity until the fan reaches a preset position; in the expanded state, the gap has a first width;

releasing the supporting piece to a tightening state to complete the assembly of the fan mechanism; in the tightened state, the gap has a second width smaller than the first width, the mating portion is fitted to the mated portion, and the support member is limited to the blower.

providing a shock absorbing member having an interface portion adapted to the interface portion;

sleeving the shock absorbing piece outside the fan shell until the matching part is matched with the butting part;

keeping the supporting piece in an opening state and enabling the fan sleeved with the damping piece to enter the assembly cavity to a preset position; in the expanded state, the gap has a first width;

releasing the supporting piece to a tightening state to complete the assembly of the fan mechanism; in the tightened state, the gap has a second width smaller than the first width, the butt joint portion is matched with the matched portion, and the support member limits the fan.

In order to achieve one of the above objects, an embodiment of the present invention further provides a handpiece assembly, including a dirt cup mechanism, the dirt cup mechanism including a dirt cup, the dirt cup mechanism further including a separator and/or a filter, and the handpiece assembly further including the blower mechanism as described above.

As a further improvement of an embodiment of the present invention, the fan mechanism is disposed in front of the dirt cup mechanism; the handpiece assembly further includes a handpiece assembly that includes,

the air inlet is formed at the front end of the machine head assembly;

and the air channel mechanism is communicated with the air inlet and forms a channel for the airflow introduced by the air inlet to flow to the fan through the dust cup mechanism, and the air channel mechanism is arranged in front of the dust cup mechanism and above the fan mechanism.

As a further improvement of an embodiment of the present invention, the dirt cup mechanism includes a first opening and a second opening, one of the first opening and the second opening is formed at a side front portion of the dirt cup mechanism, and the other of the first opening and the second opening is formed at a front portion of the dirt cup mechanism;

the air channel mechanism comprises an air inlet channel communicated with the air inlet and the first opening and an air outlet channel communicated with the second opening and the fan.

To achieve one of the above objects, an embodiment of the present invention further provides a cleaning tool, including a head assembly, the head assembly including a dust cup mechanism having a dust cup, and the head assembly further including a fan mechanism as described above.

As a further improvement of an embodiment of the present invention, the cleaning tool further comprises a handle assembly for gripping, the handle assembly being located on a side of the dirt cup mechanism facing away from the fan mechanism.

Compared with the prior art, the invention has the beneficial effects that: the fan can be quickly installed, the assembly mode is convenient and simple, and the assembly time and the assembly process are greatly saved; after the fan is installed, the position of the fan is stable, and the structure is firm; on the fan was fixed in the dirt cup, and kept away from the handle components setting, the shake intensity of handle when greatly reduced burnisher used reduces what the operator heard and comes from the noise at work of fan avoids towards operator's health air-out, promotes use comfort.

Drawings

FIG. 1 is a schematic view of a cleaning tool (omitting a working head assembly) according to an embodiment of the present invention in a first working mode;

FIG. 2 is a schematic structural view of a cleaning tool (with the working head assembly omitted) according to an embodiment of the present invention in a second mode of operation;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic structural view of a head assembly of one embodiment of the present invention, and illustrates a structural view of the support member in the tightened state;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view taken along line C-C of FIG. 4;

FIG. 7 is an enlarged view of a portion of region D of FIG. 5;

FIG. 8 is a schematic structural view of a fan mechanism (with a fan housing omitted) according to an embodiment of the present invention, and illustrates a connection state of the fan mechanism and a dirt cup;

FIG. 9 is an exploded view of the fan mechanism of one embodiment of the present invention and illustrates a structural view of a dirt cup associated with the fan mechanism.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the present application provides a cleaning tool 100, and specifically, the cleaning tool 100 is a cordless handheld vacuum cleaner. The cleaning tool 100 has a first end and a second end opposite the first end, and includes a working head assembly (not shown) at the first end, a handle assembly 1 at the second end for gripping by an operator, an elongated linkage assembly 3, and a head assembly 2 for at least collecting dust.

For clarity of description of the positions and directions described in this application, the direction from the first end to the second end is defined as the rear, whereas the direction from the second end to the first end is defined as the front.

In this embodiment, the cleaning tool 100 has three operating modes, so that the cleaning tool 100 can be switched to different operating modes according to different cleaning requirements. Specifically, referring to fig. 1 and 2, in the first and second modes of operation, linkage assembly 3 is removably coupled to handpiece assembly 2, and linkage assembly 3 and handpiece assembly 2 are positioned between handle assembly 1 and the handpiece assembly.

Referring to fig. 1, in the first working mode, the connecting rod assembly 3 is detachably connected to the working head assembly, the head assembly 2 is detachably connected to the handle assembly 1, and the cleaning tool 100 sequentially comprises the working head assembly, the connecting rod assembly 3, the head assembly 2 and the handle assembly 1 from front to back. When in use, the head assembly 2 is far away from the ground and is close to the upper part of a human body, so that the working head assembly can go deep into a narrow space, such as the lower part of a sofa seat, the lower part of a bed and the like.

Referring to fig. 2, in the second working mode, the head assembly 2 is detachably connected to the working head assembly, the link assembly 3 is detachably connected to the handle assembly 1, and the cleaning tool 100 sequentially comprises the working head assembly, the head assembly 2, the link assembly 3 and the handle assembly 1 from front to back. When in use, the machine head component 2 is close to the ground, so that the cleaning tool can be used for cleaning large space, in addition, the cleaning tool has lower gravity center when in normal work and is far away from the handle component 1 held by an operator, so that the operation is more labor-saving.

In a third mode of operation, linkage assembly 3 is removed, the front end of handpiece assembly 2 is removably attached to the handpiece assembly, and the rear end of handpiece assembly 2 is removably attached to handle assembly 1. In the third operating mode, the link assembly 3 is not required, so that the overall size of the cleaning tool 100 is small, and cleaning in a small range or on a wall surface or the like can be completed.

Further, the working head assembly is provided with a first connecting part; the front end of the connecting rod assembly 3 is provided with a second connecting part 42, and the rear end of the connecting rod assembly 3 is provided with a third connecting part 43; the front end of the machine head component 2 is provided with a fourth connecting part 44, and the rear end of the machine head component 2 is provided with a fifth connecting part 45; the handle assembly 1 is provided with a sixth connecting portion 46. The first connecting portion, the third connecting portion 43 and the fifth connecting portion 45 are first mating ends with the same mating structure, and the second connecting portion 42, the fourth connecting portion 44 and the sixth connecting portion 46 are second mating ends with the same mating structure, that is, the first connecting portion, the third connecting portion 43 and the fifth connecting portion 45 have the same structure related to mating, and other structures unrelated to mating may be the same or different, as long as the difference does not affect the mating of other members; the mating-related structures of the second, fourth, and

sixth connection portions

42, 44, and 46 may be the same, and other structures that are not related to mating may be the same or different, as long as the difference does not affect the mating of the remaining other members. Thereby enabling any change between different modes of operation of the cleaning tool 100.

The working head component comprises any one of a floor brush, a round brush, a dust sweeping brush and a flat suction. Of course, the workhead assembly could be configured to include other types of brushes or suction heads.

In this embodiment, the cleaning tool 100 further includes a battery pack 11 disposed on the handle assembly 1, the battery pack 11 is at least used for providing power for electrical components of the cleaning tool 100, such as a control panel, a switch, a display screen, an airflow generating device, and the like, and accordingly, all or part of the first connecting portion, the second connecting portion 42, the third connecting portion 43, the fourth connecting portion 44, the fifth connecting portion 45, and the sixth connecting portion 46 is provided with electrical connection terminals capable of being connected or disconnected, so that the battery pack 11 is electrically connected with the electrical components disposed on the head assembly 2, the link assembly 3, and the working head assembly. Of course, in alternative embodiments, the battery pack 11 may be disposed on the workhead assembly or handpiece assembly 2, or the cleaning tool 100 may be provided with an external power source in place of the battery pack 11.

Further, referring to FIG. 3, the cleaning tool 100 also includes an air path channel for the flow of air. Specifically, the working head assembly comprises an air inlet and a first channel, one open end of the first channel is arranged at the first connecting part, and the other open end of the first channel is positioned at the air inlet; the connecting-rod assembly 3 includes a second passage 52, one open end of the second passage 52 is provided at the second connecting portion 42, and the other open end of the second passage 52 is provided at the third connecting portion 43; the handpiece assembly 2 comprises an air outlet 55 and a third channel, one open end of the third channel is arranged at the fourth connecting part 44, and the other open end of the third channel is positioned at the air outlet 55. The air inlet, the first channel, the second channel 52, the third channel and the air outlet 55 can be selectively communicated to form the air path channel.

In addition, the cleaning tool 100 further includes an air flow generating device disposed in the air path channel and configured to drive air to flow along the air path channel, and the air flow generating device may be disposed in the working head assembly, the handle assembly 1, or the handpiece assembly 2. Preferably, in this embodiment, the air flow generating device is provided in the handpiece assembly 2. Hereinafter, a handpiece assembly 2 provided in an embodiment of the present application will be described in detail with reference to the accompanying drawings.

As shown in fig. 4 to 7, the head assembly 2 of the present embodiment includes a housing 24. A fourth coupling portion 44 is formed at the front end of the housing 24 for selectively coupling the head assembly 2 to one of the work head assembly and the link assembly 3; correspondingly, a fifth connection portion 45 is formed at the rear end of the housing 24 to selectively couple the handpiece assembly 2 to one of the linkage assembly 3 and the handle assembly 1.

In this embodiment, the head assembly 2 includes a dirt cup mechanism and a fan mechanism disposed in abutting relationship. Wherein the dirt cup mechanism is configured to separate and filter the dusty gas stream to form a clean gas stream and to collect impurities and dirt obtained from the dusty gas stream. The fan mechanism comprises the airflow generating device, the airflow generating device is specifically set as a fan 21, and the fan 21 is used for driving dusty airflow to enter the air path channel from the air inlet, and the dusty airflow is processed into clean airflow by the dust cup mechanism and then is discharged from the air outlet 55.

Preferably, the fan mechanism is disposed in front of the dust cup mechanism, that is, when the head assembly 2 is directly or indirectly coupled to the handle assembly 1 through the fifth connecting portion 45, the handle assembly 1 is located at a side of the dust cup mechanism facing away from the fan mechanism. Thus, when the cleaning tool 100 with the handpiece assembly 2 is used, the fan mechanism, the dirt cup mechanism and the handle assembly 1 are sequentially arranged from front to back, and the fan mechanism is far away from an operator so as to reduce the working noise heard by the operator from the fan mechanism; and the vibration generated by the work of the fan mechanism is weakened by the separation of the dust cup mechanism before being transmitted to the handle assembly 1, so that the discomfort caused by the handle being held by an operator is reduced, and the use comfort is improved.

The fan mechanism comprises a fan housing 241 for shielding the fan 21, the air outlet 55 is specifically configured to be a plurality of air vents formed on the fan housing 241, the air outlet 55 is in fluid communication with the fan 21, and the air flow can be discharged to the outside of the handpiece assembly 2 through the air outlet 55. Because the fan mechanism set up in the place ahead of dirt cup mechanism, when using burnisher 100 who has aircraft nose subassembly 2, air outlet 55 keeps away from handle subassembly 1 and towards the place ahead air-out, avoids towards operator's health air-out, promotes operator's travelling comfort.

Referring to FIG. 5, the dirt cup mechanism has a central axis V₁For clarity of the description of the positions and orientations described in this application, the central axis V is further defined in this application₁The limited direction is the up-down direction; where "up" and "down" are used with reference to the placement of the handpiece assembly 2 in a horizontal plane, the directions are those conventionally understood by those of ordinary skill in the art.

Further, the third channel of the head assembly 2 includes a head air inlet 531 and a duct mechanism. The head air inlet 531 defines an open end of the third passage, which is specifically formed at the fourth connection portion 44 at the front end of the head assembly 2; the air duct mechanism is communicated with the air inlet 531 of the machine head; when the fourth connecting portion 44 is connected to the third connecting portion 43 or the first connecting portion, the air duct mechanism may be communicated to the second channel 52 or the first channel through the handpiece air inlet 531, and a channel is formed through which the air flow introduced by the handpiece air inlet 531 flows into the fan 21 after passing through the dust cup mechanism.

Preferably, the fan mechanism is disposed at a lower space in front of the dust cup mechanism, and the air duct mechanism is disposed in front of the dust cup mechanism and above the fan mechanism. That is, the air duct mechanism and the fan mechanism are substantially vertically stacked and arranged in front of the dust cup mechanism. Like this, through the overall arrangement of optimizing wind channel mechanism, fan mechanism and dirt cup mechanism, rational utilization aircraft nose subassembly's space effectively reduces aircraft nose subassembly's size, makes aircraft nose subassembly more exquisite.

Further, the dirt cup mechanism includes a first opening 532 and a second opening 541, one of the first opening 532 and the second opening 541 is formed at a side front portion of the dirt cup mechanism, and the other of the first opening 532 and the second opening 541 is formed at a front portion of the dirt cup mechanism.

Correspondingly, the air channel mechanism comprises an air inlet channel 53 and an air outlet channel 54. One open end of the air inlet duct 53 is located at the handpiece air inlet 531, the other open end of the air inlet duct 53 is located at the first opening 532, and the air inlet duct 53 extends backwards from the handpiece air inlet 531 to the first opening 532, so as to form a passage for dust-containing air flow introduced from the handpiece air inlet 531 to enter the dust cup mechanism. One open end of the air outlet channel 54 is located at the second opening 541, the other open end of the air outlet channel 54 is located at the fan 21, and the air outlet channel 54 extends downwards from the second opening 541 to the air inlet 212 of the fan 21, so as to form a channel for allowing the clean air flow flowing out of the dust cup mechanism to enter the fan 21.

In the head assembly 2 of this embodiment, the dust cup mechanism is communicated with the air duct mechanism at the front part and the lateral front part thereof, so that the staggered distribution of the air outlet duct 54 and the air inlet duct 53 can be realized, and a space is reserved for the installation of the fan mechanism; but also greatly shortens the length of the air duct and reduces the size of the head assembly 2.

In the present embodiment, the first opening 532 is specifically formed at the front side of the dust cup mechanism, and the second opening 541 is specifically formed at the front of the dust cup mechanism. In an alternative embodiment, the first opening 532 may also be located at the front of the dirt cup mechanism and the second opening 541 may also be located at the side front of the dirt cup mechanism. Accordingly, according to the positions of the first opening 532 and the second opening 541, the extending directions of the air inlet duct 53 and the air outlet duct 54 can be respectively adjusted adaptively, and are staggered and interfere complementarily.

Further, as previously described, the dirt cup mechanism is used to separate and filter a dusty gas stream to form a clean gas stream, and to collect impurities and dirt obtained from the dusty gas stream. Specifically, in the present embodiment, the dirt cup mechanism includes a dirt cup 25 for collecting impurities and dust obtained from the dusty gas stream, a separator 26 for separating the impurities in the dusty gas stream, and a filter 27 for filtering fine particles in the dusty gas stream. In other embodiments, the dirt cup mechanism can also be configured to include one of a separator 26 and a filter 27 for cleaning the dusty gas stream.

The dirt cup 25 includes a sidewall and a bottom 252 that define a cylindrical receiving chamber in which the impurities or dirt separated from the dirt-laden air flow can be collected. The dust cup 25 has a lower opening communicating the containing cavity with the outside, the dust cup bottom cover 252 is hinged below the side wall of the dust cup and is used for closing or opening the lower opening, and when the dust cup bottom cover 252 opens the lower opening, an operator can clean collected impurities or dust out of the containing cavity through the lower opening.

A separator 26 is mounted in the receiving chamber in the dirt cup 25, and may be configured as a single or multi-stage cyclone separator, the separator 26 being configured to separate bulky and heavy impurities, as well as large particles of dirt, from the dirt-laden air stream. The separator 26 is located upstream of the filter 27 with respect to the airflow, and the dusty airflow entering the dirt cup means from the first opening 532 first passes through the separator 26, that is, the first opening 532 is located on the dirt cup 25 adjacent the separator 26.

The filter 27 is located downstream of the separator 26 with respect to the air flow, and the dust-laden air flow treated by the separator 26 flows further into the filter 27, and the filter 27 filters fine dust in the dust-laden air flow, thereby forming a clean air flow. In this embodiment, the dirt cup mechanism further includes a filter holder through which the filter 27 is fitted over the dirt cup 25, and a cover 272 hinged to the filter holder and opening and closing an upper opening of the dirt cup mechanism. When the cover 272 opens the upper opening, an operator can access the filter 27 through the upper opening to clean and replace the filter 27. In other embodiments, the cover 272 is also removably mounted to the upper opening of the dirt cup mechanism by a snap-fit mechanism or a threaded mechanism; when the cover 272 is opened, the entire assembly can be removed from the dirt cup 25.

Preferably, the filter 27 is provided as a ring filter as shown in the drawing, and the second opening 541 is provided adjacent to the filter 27 and has a height substantially the same as the installation height of the filter 27. When the cleaning tool 100 is in operation, the airflow in the dirt cup 25 flows up to the center of the annular filter and around through the annular filter, where it is collected towards the second opening 541 in the front/side front of the dirt cup mechanism and out of the dirt cup mechanism. In addition, the filter 27 may be specifically provided as a HEPA filter, a sponge filter, or the like. Of course, in alternative embodiments, the filter 27 may also be provided as a flat filter.

Further, as mentioned above, the fan mechanism includes a fan 21 for driving the flow of the air stream. Specifically, referring to fig. 7 to 9, the fan 21 includes a fan housing 210, a motor 215 covered by the fan housing 210, and an impeller 214, wherein the impeller 214 is rotatably connected to a rotating shaft of the motor 215. When the blower 21 is operated, the motor 215 drives the impeller 214 to rotate through the rotating shaft to generate a strong suction force and a strong pressure, under the action of the suction force and the pressure, the air flow passing through the blower 21 is discharged from the air outlet 213 at a high speed, and an external air flow (e.g., the air flow in the air outlet channel 54) is continuously supplemented into the blower 21 through the air inlet 212 of the blower 21, so as to drive the air flow in the air channel of the cleaning tool 100 to flow.

In addition, referring to fig. 7 to 9, an assembly structure of the fan mechanism is specifically illustrated in an embodiment of the present application, so as to achieve stable structure and simple and convenient assembly of the fan mechanism.

Specifically, the fan mechanism further includes a support 22 connected to a dirt cup 25. The support member 22 comprises a body enclosing a mounting cavity 220, the body comprising a gap 222 and two

resilient arms

2201, 2202 separated by the gap 222, the two

resilient arms

2201, 2202 being movable away from or towards each other to increase or decrease the width of the gap 222, the width of the gap 222 increasing as the two

resilient arms

2201, 2202 move away from each other; conversely, when the two

resilient arms

2201, 2202 are brought closer together, the width of the gap 222 gradually decreases.

The blower 21 further comprises a mating portion 211 provided on the blower housing 210, and correspondingly, the support member 22 further comprises a mated portion 221 provided on the body. The matched part 221 and the matching part 211 are matched, and when the matched part 221 is matched with the matching part 211, the body surrounds the outside of the fan shell 210, and the support part 22 can support and limit the fan 21.

Specifically, the support 22 has an expanded state and a contracted state. Wherein, when the support 22 is in the open state, the gap 222 has a first width, and at this time, the blower 21 can move relative to the support 22 and enter or exit the assembly cavity 220; when the supporting member 22 is in the tightened state, the gap 222 has a second width smaller than the first width, at this time, the mating portion 211 can be mated to the mated portion 221, and the supporting member 22 limits the blower 21 to prevent the blower 21 from being separated from the assembly cavity 220. The fan mechanism of the embodiment can realize the quick installation of the fan 21 by arranging the two

elastic arms

2201 and 2202, the assembly mode is convenient and simple, and the assembly time and the assembly process are greatly saved; the matching of the matching part 211 and the matched part 221 ensures that the position of the fan 21 is stable and the structure is firm after the fan is installed; in addition, the fan 21 is fixed on the dust cup 25, so that the working vibration of the fan 21 is transmitted to the outside through the dust cup 25 instead of being directly transmitted to the shell 24, the shaking strength of the handle when the cleaning tool 100 is used is reduced, and the comfort is improved.

Further, the amount of deformation of the two

resilient arms

2201, 2202 in the expanded state is greater than the amount of deformation in the contracted state. Under the action of external force, the two

elastic arms

2201, 2202 can move away from each other and keep the support member 22 in the open state; under the action of an external force or a self-restoring force, the two

elastic arms

2201 and 2202 can approach each other and transform the supporting member 22 from the expanded state to the contracted state.

The state in which the two

elastic arms

2201, 2202 are far away from or close to each other is only represented by the relative position relationship of the two

elastic arms

2201, 2202, and is not a limitation on the actual movement process of the two elastic arms. Also, there are a variety of implementations of the two

resilient arms

2201, 2202 away from or close to each other: in one implementation, the elastic arm 2201 is stationary relative to the dirt cup 25 and remains in a non-deformed state, and the elastic arm 2202 moves away from or close to the elastic arm 2201 under the action of an external force or deformation restoring force; in another implementation, the elastic arm 2202 is stationary relative to the dirt cup 25 and remains in a non-deformed state, and the elastic arm 2201 moves away from or close to the elastic arm 2202 under the action of an external force or deformation restoring force; in still another implementation, the

elastic arms

2201 and 2202 both move away from or close to each other under the action of an external force or deformation restoring force. Of course, there are other implementations than the above, for example, one of the two

elastic arms

2201, 2202 moves toward the other, and the other of the two

elastic arms

2201, 2202 moves away from the other, and the two move toward or away from each other due to different strokes.

In this embodiment, the two

resilient arms

2201, 2202 each include a fixed end 2203 and a free end 2204 disposed opposite to each other, the fixed end 2203 is connected to the dirt cup 25 and is fixed in position relative to the dirt cup 25, and the free end 2204 is disposed proximate to the gap 222. Wherein the distance between the free ends 2204 of the two

resilient arms

2201, 2202 defines the width of the gap 222. When the two

elastic arms

2201, 2202 are acted by external force, the two

elastic arms

2201, 2202 can deform and move the free end 2204 away from the initial position.

In this embodiment, the assembling method of the fan mechanism includes: providing a fan 21 and a support member 22 connected to a dirt cup 25; under the action of external force, at least one of the two

elastic arms

2201, 2202 is deformed to make the two

elastic arms

2201, 2202 move away from each other and keep the supporting member 22 in the open state, and at the moment, the fan 21 enters the assembly cavity 220 until the fan 21 reaches a preset position; removing the external force, the two

elastic arms

2201 and 2202 approaching to each other under the action of the deformation restoring force, so that the supporting member 22 is released to the tightening state, at this time, the matching part 211 is matched to the matched part 221, and the supporting member 22 limits the fan 21, thereby completing the assembly of the fan mechanism.

Further, the supporting member 22 has an initial state in which both the

elastic arms

2201, 2202 do not have deformation, and the gap 222 has a third distance, wherein the third distance is smaller than or equal to the second distance. That is, when the blower mechanism is assembled and the support member 22 is in the tightened state, the two

elastic arms

2201, 2202 may be deformed to be completely restored or at least one of them may be deformed.

Preferably, when the fan mechanism is assembled with the support 22 in the tightened state, at least one of the two

resilient arms

2201, 2202 still has a deformation amount and both always have a tendency to approach each other to reduce the second width of the gap 222. That is, when the mating portion 211 is mated to the mated portion 221, and the fan 21 is accommodated in the assembly cavity 220 and supported and limited by the supporting member 22, the two

elastic arms

2201 and 2202 always have a tendency to continuously clasp the fan 21, so as to enhance the fastening effect on the fan 21 and prevent the fan 21 from being separated from the assembly cavity 220 due to vibration or accident.

Preferably, the shape of the mounting cavity 2205 is consistent with the shape of the fan housing 210, so that the support member 22 is wrapped around the fan housing 210 to achieve better fixing effect.

In addition, the two

resilient arms

2201, 2202 are arranged to be mirror images of each other, which in this embodiment passes through the central axis V of the dirt cup mechanism₁And parallel to the front-to-back direction. Of course, the mirror surface is not limited to this embodiment, and may be disposed in other planes.

In the present embodiment, referring to fig. 7, the fan mechanism has a central axis V₂The fan 21 is arranged along the central axis V₂Is fitted into the fitting cavity 220. Preferably, the median axis V₂With central axis V of said dust cup mechanism₁Parallel to each other, and when assembled, the blower 21 is mounted from bottom to top into the mounting cavity 220. Of course, in alternative embodiments, the central axis V₂Can also be arranged to be connected with the central shaft V₁Having an acute or right angle included, all without departing from the spirit of the present application.

Further, one of the mating portion 211 and the mated portion 221 is provided as a lug, and correspondingly, the other of the mating portion 211 and the mated portion 221 is provided as a hole or a slot. As in this embodiment, the mating portion 211 is configured as a lug protruding out of the outer surface of the fan housing 210, and the mated portion 221 is configured as a hole that can receive the lug; when the support 22 is in the initial state, the inner diameter of the mounting cavity 220 is smaller than the outer diameter of the blower 21 at the lug, and the blower 21 cannot enter the mounting cavity 220; applying an external force to at least one of the two

elastic arms

2201, 2202 to transform the supporting member 22 from the initial state to the expanded state and keep the supporting member in the expanded state, wherein the inner diameter of the assembly cavity 22 is not less than the outer diameter of the blower 21 at the lug, and the blower 21 can enter the assembly cavity 220; when the blower 21 moves to the preset position, the external force applied to the two

elastic arms

2201, 2202 is removed, and the supporting member 22 is changed from the expanded state to the contracted state under the action of the deformation restoring force, so that the lug is inserted into the hole, and the installation of the blower 21 is completed. Of course, the hole in the present embodiment can be replaced by a groove recessed in the inner surface of the body and communicating with the assembly cavity 220.

In addition, in an alternative embodiment, the attached portion 221 may be a lug protruding from the body to the assembly cavity 220, and correspondingly, the attaching portion 211 may be a hole or a slot capable of receiving the lug.

In this embodiment, the support 22 further comprises an extension edge 223 arranged at the hole to share the pressure exerted by the lug.

Preferably, the fan mechanism further comprises a shock absorbing member 23, the shock absorbing member 23 is made of an elastic material, and the shock absorbing member 23 is sleeved outside the fan housing 210 and at least used for isolating the contact between the fan housing 210 and the supporting member 22, so that the vibration generated when the fan 21 works is prevented from being directly transmitted to the supporting member 22, and the comfort level is improved.

In addition, the vibration damper 23 also serves to isolate the fan housing 210 from contact with the dirt cup 25. Specifically, the fixed end 2203 of the elastic arm 2201 is arranged at a first position on the side wall of the dust cup 25, the fixed end 2203 of the elastic arm 2202 is arranged at a second position on the side wall of the dust cup 25, a certain spacing area is arranged between the first position and the second position, and the shock absorption piece 23 can isolate the contact between the fan shell 210 and the spacing area of the dust cup 25 and avoid the vibration generated when the fan 21 works from being directly transmitted to the dust cup 25.

Further, the shock absorbing member 23 includes an abutting portion 231 respectively engaged with the mating portion 211 and the mated portion 221, the abutting portion 231 includes a first wall and a second wall oppositely disposed, and a cavity surrounded by the first wall, when the supporting member 22 is in the tightened state, one of the mating portion 211 and the mated portion 221 may be received in the cavity and in mating contact with the first wall, and the other of the mating portion 211 and the mated portion 221 may be in mating contact with the second wall. That is, the abutting portion 231 is interposed between the mating portion 211 and the mated portion 221, so that direct contact between the mating portion 211 and the mated portion 221 is avoided, and a vibration damping effect is achieved.

Specifically, the structure of the docking portion 231 corresponds to the structure of the mating portion 211 and the mated portion 221. For example, in the present embodiment, the coupling portion 211 is configured as a lug, the coupled portion 221 is configured as a hole capable of receiving the lug, and correspondingly, the docking portion 231 is configured as a hollow lug protruding outward, that is, the docking portion 231 includes an inner wall and an outer wall disposed oppositely, and a cavity surrounded by the inner wall, the coupling portion 211 can be received in the cavity, and the hollow lug can be received in the coupled portion 221.

Correspondingly, the assembling method of the fan mechanism is further optimized as follows: providing a fan 21, a shock absorbing member 23, and a support member 22 connected to a dirt cup 25; firstly, the shock absorbing piece 23 is sleeved outside the fan shell 210, so that the matching part 211 is matched with the butt joint part 231; under the action of external force, at least one of the two

elastic arms

2201, 2202 deforms to make the two

elastic arms

2201, 2202 move away from each other, so as to keep the supporting element 22 in the open state, and at the same time, the fan 21 sleeved with the shock absorbing element 23 enters the assembly cavity 220 until reaching a preset position; removing the external force, approaching the two

elastic arms

2201 and 2202 with each other under the action of the deformation restoring force, so that the supporting part 22 is released to the tightening state, and at the moment, the butt joint part 231 is matched to the matched part 221 and the supporting part 22 limits the fan 21 sleeved with the shock absorbing part 23, thereby completing the assembly of the fan mechanism.

In addition, the shock absorbing member 23 further includes a sleeve 230 and a hollow rib 232. The sleeve 230 is sleeved outside the fan shell 210 and has an inner surface 2301 and an outer surface 2302 which are arranged oppositely; when the sleeve 230 is sleeved outside the fan housing 210, the inner surface 2301 is in close fit with the fan housing 210. The hollow rib 232 protrudes out of the outer surface 2302 of the sleeve 230 and has a hollow cavity 2321, the hollow rib 232 being in contact with the body of the support 22. Therefore, by arranging the hollow convex rib 232, vibration and noise generated when the fan 21 works can be absorbed by the hollow cavity 2321, and the effects of shock absorption and noise reduction are achieved.

The hollow ribs 232 may extend in various ways. In the preferred embodiment, the hollow protruding rib 232 is provided as a column shape arranged at intervals along the axial direction of the sleeve 230, the hollow protruding rib 232 includes a guiding inclined surface 2322, the guiding inclined surface 2322 defines an upper end surface of the hollow protruding rib 232, and the guiding inclined surface 2322 extends downward in a direction away from the outer surface 2302 of the sleeve 230, in other words, the guiding inclined surface 2322 is inclined downward from the outer surface 2302. During assembly of the fan mechanism, the guide inclined surface 2322 facilitates installation.

In addition, the fan housing 241 further includes a first assembly portion 2413, and the dirt cup 25 is provided with a second assembly portion 251 engaged with the first assembly portion 2413. When the fan mechanism is assembled, the fan housing 241 can be fixedly connected to the dust cup 25 by the mating of the first assembling portion 2413 and the second assembling portion 251, so as to shield the fan 21. The first assembling portion 2413 and the second assembling portion 251 can be coupled by screwing, riveting, buckling, welding, hinging, and the like.

The blower housing 421 also includes a rubber coating 242 that can be secured at its third assembly portion 2412.

Compared with the prior art, the invention has the beneficial effects that: the fan can be quickly installed, the assembly mode is convenient and simple, and the assembly time and the assembly process are greatly saved; the position of the fan is stable after installation, and the structure is firm; on the fan was fixed in the dirt cup, and kept away from the handle components setting, the shake intensity of handle when greatly reduced burnisher used reduces what the operator heard and comes from the noise at work of fan avoids towards operator's health air-out, promotes use comfort.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A fan mechanism adjacent to a dirt cup (25), the fan mechanism comprising,

a fan (21) comprising a fan housing (210); the fan (21) is characterized by further comprising a matching part (211) arranged on the fan shell (210);

a supporting member (22) connected to the dirt cup (25), comprising a body enclosing an assembly cavity (220) and a matched part (221) arranged on the body, wherein the body comprises a gap (222) and two elastic arms (2201, 2202) separated by the gap (222), and the two elastic arms (2201, 2202) can move away from or close to each other to increase or decrease the width of the gap (222);

wherein the support (22) has an expanded state and a contracted state; in the open state, the gap (222) has a first width, and the fan (21) can enter or exit the assembly cavity (220); in the tightened state, the gap (222) has a second width smaller than the first width, the mating portion (211) is mated to the mated portion (221), and the supporting member (22) limits the fan (21);

the fan mechanism further comprises a damping piece (23), and the damping piece (23) is sleeved outside the fan shell (210) and isolates the contact between the fan shell (210) and the supporting piece (22);

the shock absorption piece (23) comprises a sleeve (230) sleeved outside the fan shell (210) and a hollow convex rib (232) protruding out of the outer surface (2302) of the sleeve (230), and the body is in contact with the hollow convex rib (232).

2. The fan mechanism of claim 1, wherein the two resilient arms (2201, 2202) are arranged to be mirror symmetric to each other.

3. The fan mechanism of claim 1, wherein in the tightened state, both of the resilient arms (2201, 2202) have a tendency to move closer together to reduce the second width.

4. The fan mechanism according to claim 1, wherein the mating portion (211) is configured as a lug protruding out of the outer surface of the fan housing (210) and the attached portion (221) is configured as a hole or a groove that can receive the lug, or wherein the attached portion (221) is configured as a lug protruding from the body to the mounting cavity (220) and the mating portion (211) is configured as a hole or a groove that can receive the lug.

5. The fan mechanism of claim 1, wherein the hollow rib (232) is configured as a cylinder spaced axially along the sleeve (230), the hollow rib (232) including a guide ramp (2322) defining an upper end surface thereof, the guide ramp (2322) extending downwardly in a direction away from the outer surface (2302) of the sleeve (230).

6. The fan mechanism of claim 1 wherein the damper (23) further comprises an abutment (231), the abutment (231) comprising first and second oppositely disposed walls and a cavity bounded by the first wall; in the tightened state, one of the mating portion (211) and the mated portion (221) is accommodated in the cavity and is in mating contact with the first wall, and the other of the mating portion (211) and the mated portion (221) is in mating contact with the second wall.

7. A method of assembling a fan mechanism adjacent a dirt cup (25), the method comprising the steps of:

providing a fan (21); the fan (21) comprises a fan shell (210) and a matching part (211) arranged on the fan shell (210);

providing a support (22) connected to the dirt cup (25); the supporting part (22) comprises a body enclosing a mounting cavity (220) and a matched part (221) arranged on the body, the body comprises a gap (222) and two elastic arms (2201, 2202) separated by the gap (222), and the two elastic arms (2201, 2202) can move away from or close to each other to increase or decrease the width of the gap (222);

-keeping the support (22) in the open condition and bringing the fan (21) into the assembly chamber (220) up to a preset position; the gap (222) has a first width in the expanded state;

releasing the support (22) to a tightened state to complete assembly of the fan mechanism; in the tightened state, the gap (222) has a second width smaller than the first width, the mating portion (211) is mated to the mated portion (221), and the supporting member (22) limits the fan (21).

8. A method of assembling a fan mechanism adjacent a dirt cup (25), the method comprising the steps of:

providing a shock-absorbing member (23) having an abutting portion (231) that is fitted to the fitting portion (211);

sleeving the shock absorption piece (23) outside the fan shell (210) until the matching part (211) is matched with the butt joint part (231);

keeping the support (22) in an open state and enabling the fan (21) sleeved with the shock absorbing piece (23) to enter the assembly cavity (220) to a preset position; the gap (222) has a first width in the expanded state;

releasing the support (22) to a tightened state to complete assembly of the fan mechanism; in the tightened state, the gap (222) has a second width smaller than the first width, the abutting portion (231) is fitted to the fitted portion (221), and the support member (22) limits the fan (21).

9. A head assembly (2) comprising a dirt cup mechanism, the dirt cup mechanism comprising a dirt cup (25), the dirt cup mechanism further comprising a separator (26) and/or a filter (27), characterised in that the head assembly (2) further comprises a fan mechanism as claimed in any one of claims 1 to 8.

10. The head assembly (2) of claim 9, wherein said fan mechanism is disposed forward of said dirt cup mechanism; the handpiece assembly (2) further comprises a handle,

an air inlet (531) formed at the front end of the head assembly (2);

and the air channel mechanism is communicated with the air inlet (531) and forms a channel for the air flow introduced by the air inlet (531) to flow to the fan (21) through the dust cup mechanism, and the air channel mechanism is arranged in front of the dust cup mechanism and above the fan mechanism.

11. The handpiece assembly (2) of claim 10, wherein the dirt cup mechanism includes a first opening (532) and a second opening (541), one of the first opening (532) and the second opening (541) being formed in a side front portion of the dirt cup mechanism, the other of the first opening (532) and the second opening (541) being formed in a front portion of the dirt cup mechanism;

the air channel mechanism comprises an air inlet channel (53) communicated with the air inlet (531) and the first opening (532), and an air outlet channel (54) communicated with the second opening (541) and the fan (21).

12. A cleaning implement (100) comprising a handpiece assembly (2), the handpiece assembly (2) comprising a dirt cup mechanism having a dirt cup (25), characterized in that the handpiece assembly (2) further comprises a fan mechanism according to any one of claims 1 to 8.

13. A cleaning implement (100) according to claim 12, the cleaning implement (100) further comprising a handle assembly (1) for gripping, wherein the handle assembly (1) is located on a side of the dirt cup mechanism facing away from the fan mechanism.