CN215937265U - Dust pushing device of cleaning robot and cleaning robot - Google Patents

Abstract

The utility model relates to a dust pushing device of a cleaning robot and the cleaning robot. The dust pushing device comprises: the dust cleaning device comprises a driving assembly, a transmission assembly, a dust pushing assembly and a dust brushing assembly, wherein the driving assembly is connected with the transmission assembly; the transmission assembly comprises a driving belt wheel, a driven belt wheel and a transmission belt, the transmission belt is arranged between the driving belt wheel and the driven belt wheel, and the driving assembly is used for driving the driving belt wheel to rotate; the dust pushing assembly comprises a dust pushing plate and a transmission connecting piece, and the dust pushing plate is fixedly connected with the transmission belt through the transmission connecting piece; and the dust brushing assembly comprises a dust brush, and in a dust brushing mode, the transmission assembly drives the dust push plate to move to the dust brush, so that the dust brush is in contact with dust push cloth on the dust push plate to clean dust on the dust push cloth. The application provides a dirt brush of dirt push device can the dust of dirt push cloth on the self-cleaning dirt push pedal, improves work efficiency.

Description

Dust pushing device of cleaning robot and cleaning robot

Technical Field

The present disclosure relates to cleaning apparatuses, and particularly to a dust pushing apparatus for a cleaning robot and a cleaning robot having the same.

Background

At present, a cleaning robot usually adopts a traditional dust pushing mode to clean dust and sundries on the ground, and after the cleaning robot works for a period of time, more and more dust is on dust pushing cloth, so that the dust pushing effect is greatly reduced. At this moment, the manual work is needed to participate in dust brushing, the broom is used for collecting dust, secondary dust raising is easily caused, automatic cleaning cannot be achieved, cleaning efficiency is limited, and user satisfaction is also affected. Some cleaning robots collect dust by adopting an air suction motor or a dust collector, but have the defects of high cost, high noise in operation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dust collecting device for automatically brushing and collecting dust, which is applied to a cleaning robot.

The present invention has been made to solve the above problems, and an aspect of the present invention is a dust pushing apparatus for a cleaning robot, including: the dust cleaning device comprises a driving assembly, a transmission assembly, a dust pushing assembly and a dust brushing assembly; the driving component is connected with the transmission component; the transmission assembly comprises a driving belt wheel, a driven belt wheel and a transmission belt, the transmission belt is arranged between the driving belt wheel and the driven belt wheel, and the driving assembly is used for driving the driving belt wheel to rotate; the dust push component comprises a dust push plate and a transmission connecting piece, and the dust push plate is fixedly connected with the transmission belt through the transmission connecting piece; the dust brushing assembly comprises a dust brush, and in a dust brushing mode, the transmission assembly drives the dust push plate to move to the dust brush, so that the dust brush is in contact with the dust push cloth on the dust push plate to clean dust on the dust push cloth.

In an embodiment of the utility model, the dust pushing device further includes a casing with an opening at the bottom, the driving assembly, the transmission assembly and the dust brushing assembly are all arranged inside the casing, in the dust pushing mode, the dust pushing plate is located at the opening and extends out of the casing, and in the dust brushing mode, the dust pushing plate moves to the inside of the casing.

In an embodiment of the present invention, the transmission assembly further includes a first connecting rod and a second connecting rod arranged in parallel, the driven pulley includes a first driven pulley set and a second driven pulley set, the driving pulley and the first driven pulley set are arranged on the first connecting rod, the second driven pulley set is arranged on the second connecting rod, and the transmission belt is arranged between the first driven pulley set and the second driven pulley set.

In one embodiment of the present invention, the first link includes a first end and a second end, the first driven pulley set includes a first driven pulley disposed at the first end and a second driven pulley disposed at the second end; the second connecting rod comprises a third end and a fourth end, the second driven pulley group comprises a third driven pulley and a fourth driven pulley, the third driven pulley is arranged at the third end, and the fourth driven pulley is arranged at the fourth end; the drive belt includes first drive belt and second drive belt, and first drive belt sets up between first driven pulley and third driven pulley, and the second drive belt sets up between second driven pulley and fourth driven pulley.

In an embodiment of the present invention, the transmission connecting member includes a first transmission connecting member and a second transmission connecting member, wherein the first transmission connecting member is fixedly connected with the first transmission belt, and the second transmission connecting member is fixedly connected with the second transmission belt.

In one embodiment of the utility model, the transmission connecting piece comprises an elastic piece, and the dust push plate is connected with the transmission connecting piece through the elastic piece.

In one embodiment of the utility model, the transmission belt comprises a proximity sensor for sensing a first position and a second position of the dust push plate, and the transmission assembly drives the dust push plate to move back and forth between the first position and the second position in the dust brushing mode.

In one embodiment of the present invention, the dust push plate includes a first end and a second end, the first end is located above the second end in the dust brushing mode, the first end of the dust push plate is in contact with the dust brush in the first position, and the second end of the dust push plate is in contact with the dust brush in the second position.

In an embodiment of the utility model, the dust pushing device further comprises a dust box arranged below the brush assembly, and the dust box is used for receiving dust falling from the dust pushing cloth.

The utility model also provides a cleaning robot for solving the technical problems, which comprises the dust pushing device.

The dust pushing device of the cleaning robot drives the dust pushing plate to move to the dust brush through the transmission assembly, and the driving assembly controls the dust pushing plate to be in contact with the dust brush so as to clean dust on the dust pushing cloth, so that the dust pushing plate is automatically switched between a dust pushing mode and a dust brushing mode, automatic dust brushing and dust collection are realized, and the working efficiency of the dust pushing device is improved.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:

FIG. 1 is a schematic perspective view of a dust pushing apparatus according to an embodiment of the present invention;

FIG. 2 is a front cross-sectional view of a dust pushing assembly in accordance with one embodiment of the present invention;

FIG. 3A is a schematic view of a first position of a dust pushing assembly of the dust pushing apparatus according to an embodiment of the present invention;

FIG. 3B is a schematic view of a second position of a dust pushing assembly of the dust pushing apparatus according to the embodiment of the utility model;

FIG. 4 is a schematic view of a dust pushing apparatus according to an embodiment of the utility model.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

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

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are examples of the dust pushing device and the cleaning robot thereof for embodying the technical idea of the present invention, and the dust pushing device and the cleaning robot thereof are not limited to the following. In the present specification, the members shown in the columns of "claims" and "contents of utility" are assigned numbers corresponding to the members shown in the examples in order to make the scope of the claims easier to understand. However, the members shown in the claims are by no means specified as members of the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments are not intended to limit the scope of the present invention to these, but are merely illustrative examples unless otherwise specified.

However, the dimensions, positional relationships, and the like of the members shown in the drawings may be exaggerated for clarity of description. In the following description, the same names and symbols indicate the same or similar members, and detailed description thereof will be omitted as appropriate. Further, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and one member shares a plurality of elements, or conversely, the function of one member may be shared by a plurality of members. Note that the contents described in some of the examples and embodiments can be applied to other examples and embodiments. In the present specification, the term "upper" is used not only to mean a case where the upper surface is in contact with the upper surface, but also to include a case where the upper surface is formed separately, and also to include a case where a layer is interposed between layers.

Fig. 1 is a schematic perspective view of a dust pushing device according to an embodiment of the present invention. Referring to fig. 1, a dust pushing device of a cleaning robot of this embodiment includes: drive assembly 100, transmission assembly 200, dust pusher assembly 300, and brush assembly 400. Wherein, the driving assembly 100 is connected with the transmission assembly 200; the transmission assembly 200 comprises a driving pulley, a driven pulley and a transmission belt, the transmission belt is arranged between the driving pulley and the driven pulley, and the driving assembly 100 is used for driving the driving pulley to rotate; the dust push component 300 comprises a dust push plate 310 and a transmission connecting piece, wherein the dust push plate 310 is fixedly connected with a transmission belt through the transmission connecting piece; and the dust brush assembly 400 comprises a dust brush 410, and in the dust brushing mode, the transmission assembly 200 drives the dust push plate 310 to move to the dust brush 410, so that the dust brush 410 contacts with the dust cloth on the dust push plate 310 to clean the dust on the dust cloth.

It should be noted that fig. 1 shows the dust pushing plate 310 without the dust pushing cloth installed. In practical applications, a dust cloth is mounted on the bottom surface of the dust pushing plate 310, and the dust cloth is used to clean the floor.

Referring to fig. 1, the dust pushing assembly 300 is fixedly connected to the transmission assembly 200, and the dust brushing assembly 400 is fixedly disposed. In the dust pushing mode, the driving assembly 100 drives the transmission assembly 200 to rotate, and the dust pushing assembly 300 is driven by the transmission assembly 200 to move to a position contacting with the ground, i.e. the position shown in fig. 1, so as to perform dust pushing work; in the dust brushing mode, the driving assembly 100 drives the transmission assembly 200 to rotate, the dust pushing assembly 300 is driven by the transmission assembly 200 to move to a position where the dust pushing assembly is contacted with the dust brushing assembly 400, and then the driving assembly 100 controls the transmission assembly to move back and forth along the positive and negative directions, so that the dust pushing assembly 300 is contacted with the dust brushing assembly 400, and dust is brushed off by friction.

The dust pushing assembly 300 of the dust pushing device provided by the utility model can be driven by the transmission assembly 200 to be in contact with the dust brushing assembly 400, dust is brushed down through friction, dust brushing automation is realized, the working efficiency is improved, and the labor cost is saved.

In some embodiments, the dust pushing apparatus further comprises a housing 500 having an opening at the bottom, and the driving assembly 100, the transmission assembly 200 and the dust brushing assembly 400 are all disposed inside the housing 500, in the dust pushing mode, the dust pushing plate 310 is located at the opening and extends out of the housing 500, and in the dust brushing mode, the dust pushing plate 310 moves to the inside of the housing 500.

Referring to fig. 1, there is shown a partial housing 500 with an opening below the entire dust pushing assembly through which a dust pusher plate 310 can extend to clean a floor.

It will be appreciated that the dust pushing device of the present invention may also be used to clean surfaces other than floors, such as walls or slopes. In this case, the overall orientation of the dust pushing device is changed so that the dust pushing plate 310 is adapted to contact the wall surface or the inclined surface.

The shell 500 of the dust pushing device provided by the utility model has a protection effect on internal elements, and can prevent dust from falling outside in a dust brushing mode, so that secondary dust raising is avoided, and the cleaning effect is improved.

In some embodiments, the dust pusher further comprises a dust box 600 disposed below the brush assembly 400, the dust box 600 for receiving dust falling from the dust pusher cloth. The dust box 600 may be contained inside the housing 500.

FIG. 2 is a front cross-sectional view of a dust pushing assembly in accordance with one embodiment of the present invention. Fig. 2 shows the structure of the dust pushing device inside the casing 500, with the direction V1 in fig. 1 as a perspective view. Referring to fig. 2, the transmission assembly 200 includes a driving pulley 210, a driven pulley 220 and a transmission belt, the transmission belt is disposed between the driving pulley 210 and the driven pulley, the driving assembly 100 is connected to the driving pulley 210 for driving the driving pulley 210 to rotate, and then the driving pulley 210 drives the driven pulley to rotate through the transmission belt.

In some embodiments, the transmission assembly 200 further includes a first link 240 and a second link 250 disposed in parallel, the driven pulley includes a first driven pulley set and a second driven pulley set, the driving pulley 210 and the first driven pulley set are disposed on the first link 240, the second driven pulley set is disposed on the second link 250, and the transmission belt is disposed between the first driven pulley set and the second driven pulley set. The driving assembly 100 drives the driving pulley 210 to rotate, and the driving pulley 210 drives the first connecting rod 240 and the first driven pulley set to rotate, and then drives the second driven pulley set to rotate through the driving belt.

In some embodiments, the first link 240 includes a first end 241 and a second end 242, the first driven pulley set includes a first driven pulley 2211 and a second driven pulley 2212, the first driven pulley 2221 is disposed at the first end 241, the second driven pulley 2212 is disposed at the second end 242; the second link 250 includes a third end 251 and a fourth end 252, the second driven pulley group includes a third driven pulley 2221 and a fourth driven pulley 2222, the third driven pulley 2221 is provided at the third end 251, and the fourth driven pulley 2222 is provided at the fourth end 252; the transmission belt includes a first transmission belt 231 and a second transmission belt 232, the first transmission belt 231 is disposed between the first driven pulley 2211 and the third driven pulley 2221, and the second transmission belt 232 is disposed between the second driven pulley 2212 and the fourth driven pulley 2222.

In the embodiment shown in fig. 2, there are one driving pulley 210, 4 driven pulleys 2211, 2212, 2221, 2222, 2 belts 231, 232. The belts 231, 232 are substantially equal in length and are disposed parallel to each other. The present invention does not limit the number, location, length, size, etc. of the driving pulley 210, the driven pulley 220, and the transmission belt in the transmission assembly 200.

In some embodiments, there may be only one drive belt, and accordingly, only one driven pulley per driven pulley set, and the driven pulleys may be disposed at other locations, such as the center of the first and second links 240 and 250.

Referring to FIG. 2, the dust pushing assembly 300 includes a dust pushing plate 310 and a transmission connecting member 320, the dust pushing plate 310 is fixedly connected to the transmission belt through the transmission connecting member 320, and the transmission connecting member 320 may be solid or hollow, and is not limited herein. The present invention is not limited to the number and location of the drive links 320.

In the embodiment shown in fig. 2, corresponding to 2 conveyor belts 231, 232, the transmission connecting member 320 includes 2, respectively a first transmission connecting member 321 and a second transmission connecting member 322, wherein the first transmission connecting member 321 is fixedly connected with the first conveyor belt 231, and the second transmission connecting member 322 is fixedly connected with the second conveyor belt 232.

In the embodiment with only 1 conveyor belt, only 1 drive link 320 is required to be connected between the conveyor belt and the dust blade 310, and the drive link 320 can also be located below the center of the second link 250.

In some embodiments, the drive link 320 comprises a resilient member, and the dust blade 310 is coupled to the drive link 320 via the resilient member. If the transmission connecting member 320 is hollow, the elastic member can be located inside the transmission connecting member 320 to provide a certain moving space for the dust collector.

In some embodiments, the resilient member may be a spring. In some embodiments, the drive assembly 100 includes a dc brushless gearmotor.

In the dust push mode, the dust push plate 310 is in a substantially perpendicular relationship to the conveyor belt, as shown in FIG. 2.

The dust push plate of the dust push device provided by the utility model is connected with the transmission connecting piece 320 through the elastic piece, and different pressures can be provided on different grounds, so that the dust push device can be used for dealing with grounds with different concave-convex degrees, and the application range of the dust push device is widened.

In some embodiments, the belt further comprises a proximity sensor for sensing a first position P1 and a second position P2 of the dust blade 310, and the drive assembly 200 moves the dust blade 310 back and forth between the first position P1 and the second position P2 in the dust-brushing mode.

FIG. 3A is a schematic view of a first position of a dust pushing assembly of the dust pushing apparatus according to an embodiment of the utility model. FIG. 3B is a second position diagram of the dust pushing assembly of the dust pushing apparatus according to the embodiment of the utility model. Fig. 3A and 3B are both side views of the dust push apparatus as viewed along direction V2 shown in fig. 1.

Referring to fig. 3A and 3B, the drive belt in the drive assembly 200 is at an angle to the ground 101, and is not completely perpendicular. In the dust pushing mode, the dust pushing plate 310 is located at the bottom of the dust pushing assembly, and the transmission assembly 200 drives the dust pushing plate 310 to move to a position close to the ground 101, so as to perform the dust pushing operation. In the dust brushing mode, the transmission assembly 200 drives the dust pushing plate 310 to move to the inside of the housing 500, and the dust pushing plate 310 moves along the direction of the transmission belt, so that the dust pushing plate 310 and the ground 101 are in a non-right-angle inclined relationship. According to the arrangement, dust on the dust push cloth on the dust push plate 310 can fall into the dust box 600. In order to cooperate with collecting the falling dust, the dust box 600 should be positioned and sized to perform the function of collecting the dust. The present invention is not particularly limited with respect to the size and shape of the dust box 600. As shown in fig. 3A and 3B, the height of the dust box 600 from the ground is lower than the height of the second end 312 from the ground when the dust push plate 310 is in the first position P1.

Referring to FIG. 3A, it will be appreciated that the dust brush 410 and the dust box 600 are both located on the same side of the drive assembly 200, as shown on the left side in FIG. 3A. That is, in the dust brushing mode, the driving assembly 100 is required to move the dust pushing plate 310 to the left.

Referring to FIG. 3A, the dust push plate 310 is now in the first position P1. In some embodiments, the dust push plate 310 includes a first end 311 and a second end 312, the first end 311 being positioned above the second end 312 in the brush mode, and the first end 311 of the dust push plate 310 being in contact with the dust brush 410 in the first position P1. Referring to FIG. 3B, in the second position P2, the second end 312 of the dust push plate 310 is in contact with the dust brush 410.

In the present embodiment, the dust brush 410 is a row brush or scrubbing brush, and the contact surface between the brush and the dust pushing plate 310 is an elongated area. The dust blade 310 is generally rectangular with a first end 311 being at one short side of the dust blade 310 and a second end 312 being the other short side of the dust blade 310. In the brush mode, the dust push plate 310 moves back and forth between the first position P1 and the second position P2, causing the dust brush 410 to gradually brush from the first end 311 to the second end 312 of the dust push plate 310. When the first end 311 of the dust push plate 310 is in contact with the dust brush 410, the dust push plate 310 is in the first position P1; when the second end 312 of the dust push plate 310 is in contact with the dust brush 410, the dust push plate 310 is in the second position P2.

In the dust brushing mode, fig. 3A can be used to show three states of the dust pushing plate 310, one of which is a state where the first end 311 is in contact with the dust brush 410 during the upward movement of the dust pushing plate 310 from the bottom of the dust pushing apparatus when the dust brushing mode is just started; secondly, in the process that the dust push plate 310 moves downwards from the second position P2 shown in FIG. 3B, the dust brush 410 is in a state of brushing from the second end 312 to the first end 311; third, the dust push plate 310 will move upward from the first position P1 to the second position P2, where the first end 311 is in contact with the dust brush 410. FIG. 3B can be used to illustrate two positions of the dust push plate 310, one of which is the dust push plate 310 moving upward from a first position P1 to a second position P2, the second end 312 being in contact with the dust brush 410; second, the dust push plate 310 will move downward from the second position P2 to the first position, with the second end 312 in contact with the dust brush 410.

In some embodiments, in the dust brushing mode, when the dust push plate 310 moves back and forth between the first position P1 and the second position P2, and when the dust push plate 310 moves downward from the second position P2 to the first position P1, the dust push plate 310 changes its direction of movement to be ready to move upward after the first end 311 is separated from the dust brush 410; the dust push plate 310 moves upward from the first position P1 to the second position P2, and the second end 312 is separated from the dust brush 410, so that the dust push plate 310 changes its direction of movement and is ready to move downward. In these embodiments, a sensor may be provided in the dust assembly 400 and the dust push plate 310 to sense a contact state of the dust brush 410 with the dust push plate 310, and when the dust push plate 310 is separated from the dust brush 410, the driving assembly 100 stops driving the dust push plate 310 and changes a moving direction of the dust push plate 310.

While the proximity sensor is not shown in fig. 3A and 3B, it will be appreciated that the proximity sensor may be located at any suitable location within the housing 500 and that a sensor may be provided on the dust blade 310 that is compatible with the proximity sensor.

In some embodiments, the proximity sensor may be a photoelectric sensor, preferably a U-shaped sensor.

In a preferred embodiment, the number of proximity sensors is two, one disposed at the first position P1 and one disposed at the second position P2. In other embodiments, the number of proximity sensors may be 1 or more, and is not limited herein.

In some embodiments, the proximity sensor is disposed on the drive belt by sensing the position of the drive link 320 as the position of the dust blade 310.

FIG. 4 is a schematic view of a dust pushing apparatus according to an embodiment of the utility model. Referring to fig. 4, the dust pushing plate 310 of the dust pushing apparatus is exposed from the opening below the casing 500, indicating that the dust pushing apparatus is in the dust pushing mode. The drive assembly 100, the transmission assembly 200 and the brush assembly 400 are all disposed within the housing.

In some embodiments, the dust box 600 is removably disposed in a dust pushing device. Referring to fig. 4, the dust box 600 has a structure suitable for being held by hand toward the outside of the housing 500, and when the amount of dust in the dust box 600 reaches a certain level, the dust box 600 may be drawn out in the direction D1 and inserted back after being cleaned.

The utility model also provides a cleaning robot, which comprises the dust pushing device. The cleaning robot has all the advantages of the dust pushing device.

It should be noted that in the foregoing description of embodiments of the utility model, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to suggest that the claimed subject matter requires more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the utility model are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the utility model, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.

Claims (10)

1. A dust pusher of a cleaning robot, comprising: a driving component, a transmission component, a dust pushing component and a dust brushing component, wherein,

the driving component is connected with the transmission component;

the transmission assembly comprises a driving belt wheel, a driven belt wheel and a transmission belt, the transmission belt is arranged between the driving belt wheel and the driven belt wheel, and the driving assembly is used for driving the driving belt wheel to rotate;

the dust pushing assembly comprises a dust pushing plate and a transmission connecting piece, and the dust pushing plate is fixedly connected with the transmission belt through the transmission connecting piece; and

the dust brushing assembly comprises a dust brush, and in a dust brushing mode, the transmission assembly drives the dust push plate to move to the dust brush, so that the dust brush is in contact with dust push cloth on the dust push plate to clean dust on the dust push cloth.

2. The dust pushing device of claim 1, further comprising a housing having an opening at a bottom thereof, wherein the driving assembly, the transmission assembly and the dust brushing assembly are disposed inside the housing, and wherein in a dust pushing mode, the dust pushing plate is located at the opening and extends outside the housing, and in a dust brushing mode, the dust pushing plate moves inside the housing.

3. The dust pushing apparatus of claim 1, wherein the transmission assembly further comprises a first link and a second link arranged in parallel, the driven pulley comprises a first driven pulley set and a second driven pulley set, the driving pulley and the first driven pulley set are disposed on the first link, the second driven pulley set is disposed on the second link, and the transmission belt is disposed between the first driven pulley set and the second driven pulley set.

4. The dust pushing apparatus of claim 3, wherein the first link includes a first end and a second end, the first driven pulley set includes a first driven pulley disposed at the first end and a second driven pulley disposed at the second end; the second connecting rod comprises a third end and a fourth end, the second driven pulley group comprises a third driven pulley and a fourth driven pulley, the third driven pulley is arranged at the third end, and the fourth driven pulley is arranged at the fourth end; the transmission belt includes a first transmission belt and a second transmission belt, the first transmission belt is disposed between the first driven pulley and the third driven pulley, and the second transmission belt is disposed between the second driven pulley and the fourth driven pulley.

5. The dust cart of claim 4, wherein the drive connection comprises a first drive connection and a second drive connection, wherein the first drive connection is fixedly coupled to the first drive belt and the second drive connection is fixedly coupled to the second drive belt.

6. The dust pushing apparatus of claim 1, wherein the drive connection member comprises an elastic member, and the dust pushing plate is connected to the drive connection member via the elastic member.

7. The dust pusher of claim 1, wherein the drive belt includes a proximity sensor for sensing a first position and a second position of the dust pusher plate, the drive assembly moving the dust pusher plate back and forth between the first position and the second position in the dust brushing mode.

8. The dust pushing device of claim 7, wherein the dust pusher plate includes a first end and a second end, the first end being positioned above the second end in the brush mode, the first end of the dust pusher plate being in contact with the dust brush in the first position, and the second end of the dust pusher plate being in contact with the dust brush in the second position.

9. The dust cart of claim 1, further comprising a dust box disposed below the brush assembly, the dust box configured to receive dust falling from the dust cart cloth.

10. A cleaning robot, characterized by comprising a dust pushing device according to any one of claims 1-9.

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