Side brush device and cleaning robot

Abstract

The utility model discloses a side brush device and a cleaning robot, and relates to the technical field of robots. The side brush comprises a side brush shell, a side brush transmission piece and a side brush assembly, wherein a containing cavity is formed in the side brush shell. The side brush transmission part is vertically installed in the containing cavity, and a first abutting face and a second abutting face are arranged in the circumferential direction of the side brush transmission part. The side brush assembly penetrates through the side brush shell and comprises a protruding column. The first abutting face and the second abutting face are used for abutting against the protruding columns respectively and drive the side brush assembly to turn over through abutting force. Therefore, when the cleaning robot cleans liquid smudginess or is in a single-mopping mode, the side brush assembly can be far away from the ground through the overturning mode of the side brush assembly, the side brush assembly is prevented from making contact with the smudginess, the cleanliness of the side brush device is improved, and secondary pollution caused in the ground cleaning process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of robots, in particular to a side brush device and a cleaning robot. Background Art

[0002] A cleaning robot, also known as a floor sweeping robot or an automatic sweeper, etc., can automatically complete the cleaning work of the ground. It usually has side brushes arranged on the side of the bottom. The side brushes are mainly used to clean corners that are difficult to clean, such as the corners of walls and the edges of furniture. Moreover, the side brushes can also rotate and sweep by rubbing against the ground, pushing the garbage towards the suction port of the cleaning robot to improve the cleaning effect.

[0003] However, the side brushes of most current cleaning robots are always in contact with the ground. When the cleaning robot cleans liquid dirt, it is easy to contaminate the side brushes. And when the cleaning robot passes over the cleaned ground, the contaminated side brushes are likely to contaminate the ground again. Summary of the Utility Model

[0004] In view of the above problems, the present utility model is proposed to provide a side brush device and a cleaning robot that can overcome or at least partially solve the above problems.

[0005] Based on the first aspect of the present utility model, a side brush device is provided, and the side brush device includes:

[0006] A side brush housing, in which a receiving cavity is provided;

[0007] A side brush transmission member, which is vertically installed in the receiving cavity. Wherein, a first abutting surface and a second abutting surface are provided along the circumferential direction of the side brush transmission member;

[0008] A side brush assembly, which penetrates through the side brush housing. Wherein, the side brush assembly includes a protruding column;

[0009] The first abutting surface and the second abutting surface are respectively used to abut against the protruding column, and drive the side brush assembly to flip through the abutting force.

[0010] An optional content of the utility model, the side brush assembly further includes a side brush curved arm and a side brush elastic arm, and the protruding column and the side brush elastic arm are respectively fixed on the side brush curved arm;

[0011] A spring arm seat is provided on the side brush housing. When the protruding column flips, it drives the side brush elastic arm to abut against the spring arm seat and deform. And through the restoration of the deformation of the side brush elastic arm, the first abutting surface forms an abutment with the protruding column, or the second abutting surface forms an abutment with the protruding column, driving the side brush curved arm to flip and reset.

[0012] An optional utility model content, wherein the side brush housing includes a first housing and a second housing located below the first housing, and the first housing and the second housing cooperate to form the accommodation cavity;

[0013] At least two first limiting rib strips are provided on the second housing. Among them, every two first limiting rib strips cooperate to limit the protruding column, so as to limit the flipping angle of the side brush assembly.

[0014] An optional utility model content, wherein the side brush curved arm includes a curved arm front end and a curved arm rear end connected to the curved arm front end; among them,

[0015] A second limiting rib strip is provided on the first housing, and a third limiting rib strip is provided on the second housing. The second limiting rib strip and the third limiting rib strip cooperate to limit the curved arm front end along the radial direction of the side brush transmission member.

[0016] An optional utility model content, wherein the side brush transmission member includes a transmission body and a transmission abutting portion extending along the radial direction of the transmission body. A transmission abutting groove is formed on the transmission abutting portion, so that two side walls of the transmission abutting groove respectively form the first abutting surface and the second abutting surface.

[0017] A first assembly groove for assembling the curved arm front end is formed on the first housing, and a second assembly groove for assembling the curved arm front end is formed on the second housing. The first assembly groove and the second assembly groove cooperate to limit the curved arm front end along the axial direction of the transmission body.

[0018] An optional utility model content, wherein the side brush assembly further includes a side brush hair bundle located at an end of the side brush curved arm away from the protruding column. Among them, the side brush curved arm flips under the drive of the protruding column to lift or lower the height of the side brush hair bundle.

[0019] An optional utility model content, a threaded through hole is formed in the vertical direction of the transmission body, and the side brush device further includes:

[0020] A threaded connecting piece, the threaded connecting piece is threadedly connected with the transmission body through the threaded through hole;

[0021] A transmission shaft, the transmission shaft is coaxially arranged with the transmission body, and the transmission shaft is connected with the threaded connecting piece to drive the transmission body to rotate through the transmission shaft.

[0022] An optional utility model content, the side brush device further includes:

[0023] a second gear, the second gear being sleeved on the transmission shaft and movably connected to the transmission shaft, wherein the second gear is coaxially fixed with the side brush housing so as to drive the side brush housing to rotate through the second gear;

[0024] A one-way transmission member, wherein the one-way transmission member is fixed to the transmission shaft; wherein,

[0025] When the second gear rotates forward, the side brush housing is driven to rotate, the protruding column abuts against the first abutting surface, and drives the side brush transmission member to rotate;

[0026] If the second gear reverses, driving the side brush housing to rotate, the protruding column moves to abut against the second abutting surface. Under the abutting force of the second abutting surface and the locking force of the one-way transmission member on the side brush transmission member, the protruding column drives the side brush curved arm to flip, and the side brush elastic arm is compressed.

[0027] An optional utility model content, the second gear is clamped and fixed to the side brush housing.

[0028] An optional utility model content, the side brush device also includes a gear box and a rotational motion output device, the second gear and the one-way transmission member are both installed in the gear box, and the rotational motion output device is connected to the second gear to drive the side brush housing to rotate through the rotational operation output device.

[0029] Based on the second aspect of the utility model, a cleaning robot is also provided, the cleaning robot comprising a side brush device as described in any one of the above utility models.

[0030] Compared with the prior art, the utility model includes a side brush housing, a side brush transmission member and a side brush assembly, wherein the side brush housing is provided with a accommodating cavity. The side brush transmission member is vertically installed in the accommodating cavity, and a first abutting surface and a second abutting surface are provided along the circumference of the side brush transmission member. The side brush assembly is arranged throughout the side brush housing, and the side brush assembly includes a protruding column. The first abutting surface and the second abutting surface are respectively used to abut against the protruding column, and drive the side brush assembly to flip through the abutting force. Therefore, when the cleaning robot is cleaning liquid dirt or performing a single mopping mode, the side brush assembly can be flipped away from the ground by the flipping method of the side brush assembly, thereby preventing the side brush assembly from contacting dirt, improving the cleanliness of the side brush device, and avoiding secondary pollution during the floor cleaning process.

[0031] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically illustrates the specific embodiments of the present utility model. Brief Description of the Drawings

[0032] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components.

[0033] In the drawings:

[0034] Figure 1 is an exploded perspective view of a side brush device provided by an embodiment of the present utility model;

[0035] Figure 2 is a perspective view of a side brush device provided by an embodiment of the present utility model;

[0036] Figure 3 is a perspective view of a side brush assembly provided by an embodiment of the present utility model;

[0037] Figure 4 is a perspective view of a first housing provided by an embodiment of the present utility model;

[0038] Figure 5 is a perspective view of a side brush transmission member provided by an embodiment of the present utility model;

[0039] Figure 6 is a perspective view of a second housing provided by an embodiment of the present utility model;

[0040] Figure 7 is a cross-sectional view of a side brush device provided by an embodiment of the present utility model;

[0041] Figure 8 is Figure 7 an enlarged view of part A in

[0042] Reference numerals: 1, side brush housing; 1001, accommodation cavity; 101, first housing; 1011, first assembly groove; 102, second housing; 1021, second assembly groove; 1022, assembly through hole; 2, side brush transmission member; 201, transmission body; 2011, threaded through hole; 202, transmission abutting portion; 2021, transmission abutting groove; 20211, first abutting surface; 20212, second abutting surface; 3, side brush assembly; 301, protruding column; 302, side brush curved arm; 3021, front end of curved arm; 3022, rear end of curved arm; 303, side brush elastic arm; 304, side brush bristle bundle; 4, elastic arm seat; 5, first limiting rib; 6, second limiting rib; 7, third limiting rib; 8, threaded connecting member; 9, transmission shaft; 10, second gear; 11, one-way transmission member; 12, gear box body; 13, rotary motion output device; 14, gear set. Detailed implementation manners

[0043] The exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0044] A cleaning robot, also known as a floor sweeping robot or an automatic cleaning machine, etc., can automatically complete the cleaning work of the ground. It usually has side brushes provided on the side of the bottom. The side brushes are mainly used to clean the corners that are difficult to clean, such as the corners of walls and the edges of furniture. Moreover, the side brushes can also rotate and sweep by rubbing against the ground, pushing the garbage towards the suction port of the cleaning robot to improve the cleaning effect.

[0045] However, the side brushes of most current cleaning robots are always in contact with the ground, resulting in easy contamination of the side brushes when the cleaning robot cleans liquid dirt. And when the cleaning robot passes over the cleaned ground, the contaminated side brushes are likely to contaminate the ground again.

[0046] Based on the above technical problems, the embodiments of the present utility model are proposed. The embodiments of the present utility model may include a side brush housing 1, a side brush transmission member 2, and a side brush assembly 3. A receiving cavity 1001 is provided inside the side brush housing 1. The side brush transmission member 2 is vertically installed in the receiving cavity 1001, and a first abutting surface 20211 and a second abutting surface 20212 are provided along the circumferential direction of the side brush transmission member 2. The side brush assembly 3 penetrates through the side brush housing 1, and the side brush assembly 3 includes a protruding column 301. The first abutting surface 20211 and the second abutting surface 20212 are respectively used to abut against the protruding column 301, and drive the side brush assembly 3 to flip through the abutting force. Thus, when the cleaning robot sweeps liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped away from the ground, avoiding the side brush assembly 3 from contacting the dirt, improving the cleanliness of the side brush device, and avoiding secondary pollution during the process of cleaning the ground.

[0047] Referring to Figures 1-8 In the embodiments of the present utility model, a side brush device is provided. The side brush device includes a side brush housing 1, a side brush transmission member 2, and a side brush assembly 3. A receiving cavity 1001 is provided inside the side brush housing 1, and the side brush transmission member 2 is vertically installed in the receiving cavity 1001. Among them, a first abutting surface 20211 and a second abutting surface 20212 are provided along the circumferential direction of the side brush transmission member 2. The side brush assembly 3 penetrates through the side brush housing 1, and the side brush assembly 3 includes a protruding column 301. The first abutting surface 20211 and the second abutting surface 20212 are respectively used to abut against the protruding column 301, and drive the side brush assembly 3 to flip through the abutting force.

[0048] In the embodiments of the present utility model, the side brush device may include a side brush housing 1, a side brush transmission member 2, and a side brush assembly 3. A receiving cavity 1001 is provided inside the side brush housing 1, and the receiving cavity 1001 is used to provide the installation of the side brush transmission member 2 and the side brush assembly 3. For example, the side brush transmission member 2 is vertically installed in the receiving cavity 1001, and a first abutting surface 20211 and a second abutting surface 20212 are provided along the circumferential direction of the side brush transmission member 2. Among them, the first abutting surface 20211 and the second abutting surface 20212 are distributed at intervals along the circumferential direction of the side brush transmission member 2. The side brush assembly 3 penetrates through the side brush housing 1, which can be understood as that a part of the side brush assembly 3 is installed inside the receiving cavity 1001, and a part of the side brush assembly 3 is installed outside the side brush housing 1. For example, the front end of the side brush assembly 3 is located in the receiving cavity 1001, and the end of the side brush assembly 3 is located outside the side brush housing 1. Thus, when the side brush assembly 3 rotates around the axis of the side brush transmission member 2, the side brush assembly 3 located outside the side brush housing 1 can be driven to rotate to realize floor cleaning.

[0049] The side brush assembly 3 may include a stud 301. The first abutting surface 20211 and the second abutting surface 20212 are respectively used to abut against the stud 301, and drive the side brush assembly 3 to flip through the abutting force. For example, a force is provided to the stud 301 through the first abutting surface 20211 or the second abutting surface 20212, or a force is applied to the first abutting surface 20211 or the second abutting surface 20212 through the stud 301. Thus, under the action of the abutting force, the stud 301 drives the side brush assembly 3 to flip, so as to change the ground clearance of the side brush assembly 3. Thus, when the cleaning robot cleans liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped away from the ground, avoiding the side brush assembly 3 from contacting the dirt, improving the cleanliness of the side brush device and avoiding secondary pollution during the process of cleaning the ground.

[0050] In some alternative embodiments, the number of the side brush assemblies 3 may be at least two, and at least two side brush assemblies 3 are angularly distributed about the central axis of the side brush transmission member 2 in the horizontal circumferential direction of the side brush housing 1. Those skilled in the art can determine the number of the side brush assemblies 3 according to actual design requirements, and no excessive limitation is made here. As a preferred embodiment, the number of the side brush assemblies 3 may be three.

[0051] In an alternative embodiment of the utility model, referring to Figure 1 、 Figure 3 and Figure 6 as shown, the side brush assembly 3 may further include a side brush crank arm 302 and a side brush spring arm 303. The stud 301 and the side brush spring arm 303 are respectively fixed on the side brush crank arm 302. A spring arm seat 4 is arranged on the side brush housing 1. When the stud 301 flips, it drives the side brush spring arm 303 to abut against the spring arm seat and deform. And through the deformation recovery of the side brush spring arm 303, the first abutting surface 20211 forms an abutment with the stud 301, or the second abutting surface 20212 forms an abutment with the stud 301, driving the side brush crank arm 302 to flip and reset.

[0052] In an embodiment of the present utility model, the side brush assembly 3 may further include a side brush curved arm 302 and a side brush elastic arm 303. The side brush elastic arm 303 and the protruding post 301 are respectively fixed on the side brush curved arm 302, and the side brush elastic arm 303 is located radially outside the protruding post 301 along the side brush transmission member 2. A elastic arm seat 4 is provided on the side brush housing 1. Wherein, the elastic arm seat 4 is mainly used to form an abutment with the side brush elastic arm 303, so that when the first abutting surface 20211 abuts against the protruding post 301, or when the second abutting surface 20212 abuts against the protruding post 301, the protruding post 301 can be toggled to drive the side brush curved arm 302 to flip, and the elastic arm seat 4 forms an abutment with the side brush elastic arm 303. Through the abutting force generated between the elastic arm seat 4 and the side brush elastic arm 303, the side brush elastic arm 303 is deformed and compressed. Thus, when the abutting force between the protruding post 301 and the first abutting surface 20211 or the second abutting surface 20212 is cancelled, the protruding post 301 can be toggled to re-form an abutment with the first abutting surface 20211 or the second abutting surface 20212 through the deformation recovery ability of the side brush elastic arm 303, thereby realizing the flipping and resetting of the side brush assembly 3.

[0053] The side brush curved arm 302 has a certain bending angle. Referring to Figure 1 , Figure 2 , Figure 3 and Figure 7 as shown, when the side brush assembly 3 is in the descending state, the bending direction of the side brush curved arm 302 is downward. After the protruding post 301 drives the side brush assembly 3 to flip a certain angle under the action of the abutting force, the bending direction of the side brush curved arm 302 changes. For example, the bending direction of the side brush curved arm 302 changes from downward to horizontal, so that the height of the side brush curved arm 302 can be lifted. When the side brush curved arm 302 is in the lifted state, the side brush assembly 3 can be away from the ground. Thus, when the cleaning robot cleans liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped to make the side brush assembly 3 away from the ground, avoiding the side brush assembly 3 contacting the dirt, improving the cleanliness of the side brush device and avoiding secondary pollution during the ground cleaning process.

[0054] In some alternative embodiments, the elastic arm seat 4 and the second housing 102 are of an integral structure, and no further limitation is made here.

[0055] In an alternative embodiment of the utility model, referring to Figure 1 , Figure 2 and Figure 6As shown, the side brush housing 1 includes a first housing 101 and a second housing 102 located below the first housing 101, and the first housing 101 and the second housing 102 cooperate to form the accommodating cavity 1001. At least two first limiting ribs 5 are provided on the second housing 102, wherein each two first limiting ribs 5 cooperate to limit the protruding column 301 to limit the flipping angle of the side brush assembly 3.

[0056] In the embodiment of the utility model, the side brush housing 1 may further include a first housing 101 and a second housing 102, wherein the second housing 102 is located below the first housing 101, so that the accommodating cavity 1001 is formed by assembling the first housing 101 and the second housing 102 from top to bottom. In some embodiments, the first housing 101 and the second housing 102 may be connected by welding, bonding, and clamping. No further restrictions are made here. For example, a positioning structure and a through hole for assembling the side brush curved arm 302 may be provided on the end surfaces of the first housing 101 and the second housing 102 that are close to each other.

[0057] At least two first limiting ribs 5 are arranged on the second housing 102. Each two first limiting ribs 5 are arranged at intervals, and the two cooperate with the protruding column 301 to form a position limit along the circumferential direction of the side brush transmission member 2. Therefore, when the side brush curved arm 302 is turned over, the protruding column 301 abuts against the first first limiting rib 5, or the protruding column 301 abuts against the second first limiting rib 5, so as to limit the turning angle of the side brush curved arm 302.

[0058] For example, the flip angle may be less than or equal to 90°. Those skilled in the art may determine the flip angle of the side brush curved arm 302 according to actual design requirements, and no further limitation is given here. As a preferred embodiment, the flip angle may be set to 90°. During the use of the side brush device, when the side brush curved arm 302 is in a descending state, the bending direction of the side brush curved arm 302 is set vertically downward. At this time, when the side brush curved arm 302 is driven to rotate, the side brush assembly 3 can enter a side brush cleaning state. After the protruding post 301 is moved to flip the side brush curved arm 302 90°, the bending direction of the side brush curved arm 302 is set horizontally. At this time, the side brush curved arm 302 is lifted to the highest point.

[0059] In some embodiments, when there is one side brush curved arm 302, two first limiting rib strips 5 can be arranged at the bottom of the second housing 102. Thus, the two first limiting rib strips 5 can be arranged at intervals, and the two cooperate to form a position limitation for the protrusion 301 along the circumferential direction of the side brush transmission member 2. Thus, during the flipping process of the side brush curved arm 302, the protrusion 301 abuts against the first first limiting rib strip 5, or the protrusion 301 abuts against the second first limiting rib strip 5, to limit the flipping angle of the side brush curved arm 302.

[0060] In other embodiments, when there are at least two side brush curved arms 302, two first limiting rib strips 5 can be respectively arranged at the bottom of the second housing 102. Among them, the number of the first limiting rib strips 5 is related to the number of the side brush curved arms 302. For example, when the number of the side brush curved arms 302 is N, the corresponding number of the first limiting rib strips 5 is 2N, etc.

[0061] In another alternative embodiment, the side brush housing 1 may include a first housing 101 and a second housing 102 located on the left side of the first housing 101, and the first housing 101 and the second housing 102 cooperate to form the accommodation cavity 1001. At least two first limiting rib strips 5 are arranged on the first housing 101 or the second housing 102, and among them, every two first limiting rib strips 5 cooperate to form a limit for the protrusion 301 to limit the flipping angle of the side brush assembly 3.

[0062] In the embodiment of the present utility model, the side brush housing 1 may further include a first housing 101 and a second housing 102, wherein the second housing 102 is located on the left side of the first housing 101, and thus the accommodation cavity 1001 is formed by the left-right assembly of the first housing 101 and the second housing 102. In some embodiments, the first housing 101 and the second housing 102 can be connected by means of welding, bonding, clamping, etc. No excessive limitation is made here. For example, a positioning structure and a through hole for assembling the side brush curved arm 302 can also be arranged on the end faces of the first housing 101 and the second housing 102 that are close to each other.

[0063] At least two first limiting rib strips 5 are arranged on the first housing 101 or the second housing 102. The two first limiting rib strips 5 are arranged at intervals, and the two cooperate to form a position limitation for the protrusion 301 along the circumferential direction of the side brush transmission member 2. Thus, during the flipping process of the side brush curved arm 302, the protrusion 301 abuts against the first first limiting rib strip 5, or the protrusion 301 abuts against the second first limiting rib strip 5, to limit the flipping angle of the side brush curved arm 302.

[0064] For example, the flip angle may be less than or equal to 90°. Those skilled in the art may determine the flip angle of the side brush curved arm 302 according to actual design requirements, and no further limitation is given here. As a preferred embodiment, the flip angle may be set to 90°. During the use of the side brush device, when the side brush curved arm 302 is in a descending state, the bending direction of the side brush curved arm 302 is set vertically downward. At this time, when the side brush curved arm 302 is driven to rotate, the side brush assembly 3 can enter a side brush cleaning state. After the protruding post 301 is moved to flip the side brush curved arm 302 90°, the bending direction of the side brush curved arm 302 is set horizontally. At this time, the side brush curved arm 302 is lifted to the highest point.

[0065] In some embodiments, if the side brush curved arm 302 is one, two first limiting ribs 5 may be provided at the bottom of the first housing 101 or the bottom of the second housing 102. Thus, every two first limiting ribs 5 may be provided at intervals, and the two cooperate to limit the position of the protruding column 301 along the circumferential direction of the side brush transmission member 2. Thus, when the side brush curved arm 302 is turned over, the protruding column 301 abuts against the first first limiting rib 5, or the protruding column 301 abuts against the second first limiting rib 5, to limit the turning angle of the side brush curved arm 302.

[0066] In other embodiments, if there are at least two side brush curved arms 302, two first limiting ribs 5 may be respectively provided at the bottom of the first shell 101 and the bottom of the second shell 102. The number of the first limiting ribs 5 is associated with the number of the side brush curved arms 302. For example, when the number of the side brush curved arms 302 is N, the corresponding number of the first limiting ribs 5 is 2N, etc.

[0067] In an optional utility model embodiment, referring to Figure 3 As shown, the side brush curved arm 302 may include a curved arm front end 3021 and a curved arm rear end 3022 connected to the curved arm front end 3021. The first shell 101 is provided with a second limiting rib 6, and the second shell 102 is provided with a third limiting rib 7. The second limiting rib 6 and the third limiting rib 7 cooperate to limit the curved arm front end 3021 along the radial direction of the side brush transmission member 2.

[0068] In the embodiment of the utility model, the side brush curved arm 302 may include a curved arm front end 3021 and a curved arm rear end 3022 connected to the curved arm front end 3021. The portion of the side brush curved arm 302 close to the side brush transmission member 2 or located in the accommodating chamber 1001 is defined as the curved arm front end 3021. The portion of the side brush curved arm 302 far from the side brush transmission member 2 or located outside the accommodating chamber 1001 is defined as the curved arm rear end 3022. In some embodiments, the curved arm front end 3021 and the curved arm rear end 3022 may be an integrated structure.

[0069] The first shell 101 is provided with a second limiting rib 6, and the second shell 102 is provided with a third limiting rib 7. After the first shell 101 and the second shell 102 cooperate with each other to form the accommodating cavity 1001, the second limiting rib 6 and the third limiting rib 7 can cooperate with each other to limit the front end 3021 of the curved arm along the radial direction of the side brush transmission member 2. For example, the diameter of the front end 3021 of the curved arm along the radial direction of the side brush transmission member 2 is greater than the diameter of the limiting circle formed by the cooperation of the second limiting rib 6 and the third limiting rib 7. In this way, it can be avoided that the side brush curved arm 302 moves closer to or away from the side brush transmission member 2 along the radial direction of the side brush transmission member 2 during the process of turning the protruding column 301 to drive the side brush curved arm 302 to flip.

[0070] For example, the front end 3021 of the crank arm may be a cylindrical structure, or the front end 3021 of the crank arm may be a conical structure, or the front end 3021 of the crank arm may be a truncated cone structure, etc. Thus, the outer edge of the front end 3021 of the crank arm along the axial section of the side brush transmission member 2 can be circular, and the front end 3021 of the crank arm can rotate around the same axis, and no further limitation is made here.

[0071] In some optional embodiments, the side brush curved arm 302, the side brush elastic arm 303 and the protruding column 301 may be an integrated structure, which may be made of materials such as metal, plastic and rubber.

[0072] In an optional utility model embodiment, referring to Figure 1 and Figure 5 As shown, the side brush transmission member 2 includes a transmission body 201, and a transmission abutment portion 202 extending radially along the transmission body 201, and a transmission abutment groove 2021 is provided on the transmission abutment portion 202, so that the two side walls of the transmission abutment groove 2021 respectively form the first abutment surface 20211 and the second abutment surface 20212.

[0073] In the embodiment of the present utility model, the side brush transmission member 2 may include a transmission body 201 and a transmission abutting portion 202, and the transmission abutting portion 202 extends along the radial direction of the transmission body 201. The transmission body 201 and the transmission abutting portion 202 may be an integral structure. Moreover, on the transmission abutting portion 202, a transmission abutting groove 2021 for defining the position of the side brush crank arm 302 is formed along the radial direction of the transmission body 201. Two side walls of the transmission abutting groove 2021 along the circumferential direction of the transmission body 201 are respectively used as a first abutting surface 20211 and a second abutting surface 20212. The protruding column 301 abuts against the first abutting surface 20211 or the second abutting surface 20212.

[0074] Thus, through the first abutting surface 20211 or the second abutting surface 20212, a force is provided to the protruding column 301, or a force is exerted on the first abutting surface 20211 or the second abutting surface 20212 through the protruding column 301. Under the action of the abutting force, the protruding column 301 drives the side brush assembly 3 to flip. Wherein, both the first abutting surface 20211 and the second abutting surface 20212 may be inclined surfaces.

[0075] In an alternative embodiment of the utility model, with reference to Figure 4 and Figure 6 As shown, a first assembly groove 1011 for assembling the front end 3021 of the crank arm is formed on the first housing 101, and a second assembly groove 1021 for assembling the front end 3021 of the crank arm is formed on the second housing 102. The first assembly groove 1011 and the second assembly groove 1021 cooperate to limit the front end 3021 of the crank arm along the axial direction of the transmission body 201.

[0076] In the embodiment of the present utility model, a first assembly groove 1011 for assembling the front end 3021 of the crank arm is formed on the first housing 101, and a second assembly groove 1021 for assembling the front end 3021 of the crank arm is formed on the second housing 102. After the first housing 101 and the second housing 102 are assembled in an up-and-down cooperation manner, the first assembly groove 1011 and the second assembly groove 1021 cooperate to limit the front end 3021 of the crank arm along the axial direction of the transmission body 201. In other words, the cooperation of the first assembly groove 1011 and the second assembly groove 1021 can ensure that when the protruding column 301 is toggled to drive the front end 3021 of the crank arm to flip, the front end 3021 of the crank arm can flip around the same axis. The flipping stability of the side brush crank arm 302 is improved.

[0077] In an alternative embodiment of the utility model, with reference to Figure 1 、 Figure 2 and Figure 7As shown, the side brush assembly 3 may further include a side brush hair bundle 304 located at the end of the side brush curved arm 302 away from the stud 301. Wherein, the side brush curved arm 302 is driven by the stud 301 to flip, so as to raise or lower the height of the side brush hair bundle 304.

[0078] In the embodiment of the present utility model, the side brush assembly 3 may further include a side brush hair bundle 304, and the side brush hair bundle 304 is located at the end of the side brush curved arm 302 away from the stud 301 (which can also be understood as being located on the rear end 3022 of the curved arm). The side brush hair bundle 304 is mainly used for floor cleaning. Thus, through the rotation of the side brush transmission member 2 or the rotation of the side brush housing 1, the side brush hair bundle 304 located on the side brush curved arm 302 can be driven to rotate synchronously, so as to realize the floor cleaning of the side brush hair bundle 304. In some embodiments, the side brush hair bundle 304 can also be made of materials such as rubber and plastic.

[0079] Force is provided to the stud 301 through the first abutting surface 20211 or the second abutting surface 20212, or force is applied to the first abutting surface 20211 or the second abutting surface 20212 through the stud 301. So that the stud 301 drives the side brush curved arm 302 to flip under the action of the abutting force, and the ground clearance height of the side brush hair bundle 304 is changed through the flipping of the side brush curved arm 302. Thus, when the cleaning robot cleans liquid dirt or is in the single mopping mode, the side brush hair bundle 304 can be made to be away from the ground through the flipping mode of the side brush assembly 3, avoiding the side brush hair bundle 304 from contacting the dirt, improving the cleanliness of the side brush device and avoiding secondary pollution during the process of cleaning the ground.

[0080] In an alternative embodiment of the utility model, referring to Figure 1 、 Figure 5 and Figure 7 As shown, a threaded through hole 2011 is provided in the vertical direction of the transmission body 201. The side brush device may further include a threaded connector 8 and a transmission shaft 9. The threaded connector 8 is threadedly connected to the transmission body 201 through the threaded through hole 2011. The transmission shaft 9 is coaxially arranged with the transmission body 201, and the transmission shaft 9 is connected to the threaded connector 8 to drive the transmission body 201 to rotate through the transmission shaft 9.

[0081] In the embodiment of the present utility model, the transmission shaft 9 is coaxially fixed to the transmission body 201 and is used to drive the transmission body 201 to rotate. The threaded connector 8 is arranged through the central axis of the transmission body 201. On the one hand, the threaded connector 8 serves as the rotating shaft of the transmission body 201. On the other hand, the threaded connector 8 is used for fixedly connecting with the transmission shaft 9 and also serves as a power input component.

[0082] The threaded through hole 2011 and the threaded connection hole are coaxially arranged, that is, the central axis of the threaded through hole 2011 coincides with the central axis of the threaded connection hole. In order to improve the connection stability between the transmission shaft 9 and the side brush transmission member 2, the threaded connector 8 can penetrate from the bottom of the side brush transmission member 2 upward, completely penetrate the side brush transmission member 2, and be threadedly connected with the threaded connection hole, so as to realize the fixed connection between the transmission shaft 9 and the side brush transmission member 2.

[0083] In the embodiment of the present utility model, in order to facilitate the installation of the threaded connector 8, relevant holes can be opened in the corresponding assembly areas of the first housing 101 and / or the second housing 102. For example, an assembly through hole 1022 can be opened on the central axis of the second housing 102, etc., and no excessive limitation is made here. The threaded connector 8 can be a connector such as a screw or a bolt.

[0084] In an optional embodiment of the utility model, with reference to Figure 7 and Figure 8 as shown, the side brush device may further include a second gear 10 and a one-way transmission member 11. The second gear 10 is sleeved on the transmission shaft 9 and is movably connected to the transmission shaft 9. Among them, the second gear 10 is coaxially fixed to the side brush housing 1 to drive the side brush housing 1 to rotate through the second gear 10. The one-way transmission member 11 is fixed to the transmission shaft 9.

[0085] When the second gear 10 rotates forward, it drives the side brush housing 1 to rotate, the protruding column 301 abuts against the first abutting surface 20211, and drives the side brush transmission member 2 to rotate. When the second gear 10 rotates reversely, it drives the side brush housing 1 to rotate, the protruding column 301 moves to abut against the second abutting surface 20212. Under the abutting force of the second abutment and the locking force of the one-way transmission member 11 on the side brush transmission member 2, the protruding column 301 drives the side brush curved arm 302 to flip, and the side brush elastic arm 303 is compressed.

[0086] In the embodiment of the present utility model, the fact that the second gear 10 is movably connected to the transmission shaft 9 means that the rotation of the second gear 10 does not directly drive the rotation of the transmission shaft 9. For example, the movable connection can be a clearance fit, a sliding connection, etc. Thus, when the second gear 10 is acted on by an external force, the side brush housing 1 is driven to rotate. The one-way transmission member 11 is fixedly connected to the transmission shaft 9. For example, the one-way transmission member 11 can be a one-way bearing, which has a one-way locking function and restricts the side brush transmission member 2 to rotate only in one rotation direction. For example, the rotating part of the one-way transmission member 11 is fixed to the transmission shaft 9. When the transmission shaft 9 is subjected to a positive rotation force, the one-way transmission member 11 does not restrict the rotation of the transmission shaft 9. When the transmission shaft 9 is subjected to a reverse rotation force, due to the one-way locking function of the one-way transmission member 11, the current position of the transmission shaft 9 is locked, and the transmission shaft 9 cannot rotate in the reverse direction.

[0087] The fact that the second gear 10 and the side brush housing 1 are coaxially fixed means that the central axis of the second gear 10 coincides with the central axis of the side brush housing 1, and the second gear 10 is fixed to the side brush housing 1. When the second gear 10 rotates forward, the side brush housing 1 coaxially fixed to the second gear 10 rotates forward synchronously with the second gear 10. At this time, the first abutting surface 20211 abuts against the protruding column 301, and the abutting force applied to the first abutting surface 20211 by the protruding column 301 drives the side brush transmission member 2 to rotate forward synchronously. When the transmission shaft 9 is subjected to a positive rotation force, the one-way transmission member 11 does not restrict the rotation of the transmission shaft 9. Thus, the rotation of the side brush assembly 3 can be realized. And at this time, the side brush assembly 3 is in the descending state. Therefore, when the second gear 10 rotates forward, the side brush assembly 3 can be driven to rotate in the descending state, and thus normal floor cleaning can be performed.

[0088] When the second gear 10 rotates in reverse, the side brush housing 1 rotates in reverse synchronously. At this time, the protruding column 301 is converted from abutting with the first abutting surface 20211 to abutting with the second abutting surface 20212. And due to the locking effect of the one-way transmission member 11 on the side brush housing 1, the second abutting surface 20212 applies a circumferential force along the transmission body 201 to the protruding column 301. Thus, the protruding column 301 is moved to drive the side brush curved arm 302 to flip, and the height of the side brush assembly 3 from the bottom surface is raised. At this time, the side brush elastic arm 303 abuts against the elastic arm seat 4 and forms a downward pressure state, and the side brush elastic arm 303 is deformed and compressed. When the second gear 10 rotates forward next time, due to the elastic deformation recovery of the side brush elastic arm 303, after the second abutting surface 20212 cancels the abutting force on the protruding column 301, the first abutting surface 20211 forms abutment with the protruding column 301 again. At this time, the side brush arm 302 is reset from the raised state to the lowered state, so that when the second gear 10 rotates forward, the side brush assembly 3 repeats the floor cleaning work. Therefore, when the cleaning robot cleans liquid dirt or performs a single mopping mode, the side brush assembly 3 can be flipped to keep the side brush assembly 3 away from the ground, thereby preventing the side brush assembly 3 from contacting dirt, improving the cleanliness of the side brush device and avoiding secondary pollution during the floor cleaning process.

[0089] In an optional embodiment of the utility model, the second gear 10 is clamped and fixed to the side brush housing 1 .

[0090] In the embodiment of the utility model, when the threaded connector 8 and the transmission shaft 9 are fixedly connected by threads or other means, the second gear 10 can be fixedly connected with the side brush housing 1. For example, a first clamping portion is provided on the first housing 101, and a second clamping portion matching the shape of the first clamping portion is provided on the end face of the second gear 10 close to the side brush housing 1. The first clamping portion has an irregular shape along the radial cross section of the side brush transmission member 2, so that when the first clamping portion and the second clamping portion match the shapes, the radial displacement of the side brush housing 1 along the side brush transmission member 2 can be limited, so that the side brush housing 1 can be driven to rotate synchronously by the second gear 10. At the same time, it is convenient to disassemble and assemble the second gear 10 and the side brush housing 1.

[0091] In an optional utility model embodiment, referring to Figure 7 and Figure 8As shown, the side brush device may further include a gear box 12 and a rotary motion output device 13. The second gear 10 and the one-way transmission member 11 are both installed in the gear box 12. The rotary motion output device 13 is drivingly connected to the second gear 10 to drive the rotation of the side brush housing 1 through the rotary motion output device 13.

[0092] In the embodiment of the present utility model, the gear box 12 is used to provide an assembly space for the one-way transmission member 11 and the second gear 10. The second gear 10 and the one-way transmission member 11 are respectively installed in the gear box 12. In another embodiment, the rotary motion output device 13 may also be installed on the gear box 12. The rotary motion output device 13 is used to output rotary motion. It is drivingly connected to the second gear 10, so that the second gear 10 can be driven to rotate through the rotary motion output device 13, and rotational power is provided for the side brush housing 1. The rotary motion output device 13 may include devices such as a servo motor and a stepper motor.

[0093] When the second gear 10 is coaxially fixed to the side brush housing 1 and the one-way transmission member 11 is fixed to the transmission shaft 9, when the rotary motion output device 13 rotates forward, it drives the second gear 10 connected to it to rotate forward and drives the side brush housing 1 to rotate forward synchronously. At this time, the first abutting surface 20211 abuts against the protruding column 301, and the abutting force applied to the first abutting surface 20211 by the protruding column 301 drives the side brush transmission member 2 to rotate forward synchronously. When the transmission shaft 9 is forced to rotate forward, the one-way transmission member 11 does not restrict the rotation of the transmission shaft 9. Thus, the rotation of the side brush assembly 3 can be realized. And at this time, the side brush assembly 3 is in the lowered state. Therefore, when the second gear 10 rotates forward, it can drive the side brush assembly 3 to rotate in the lowered state, so that normal floor cleaning can be performed.

[0094] When the rotary motion output device 13 reverses, it drives the second gear 10 that is in transmission connection with the rotary motion output device 13 to reverse, and the side brush housing 1 reverses synchronously. At this time, the protrusion 301 changes from abutting against the first abutting surface 20211 to abutting against the second abutting surface 20212. And due to the locking effect of the one-way transmission member 11 on the side brush housing 1, the second abutting surface 20212 applies a circumferential force along the transmission body 201 to the protrusion 301. Thereby, the protrusion 301 is toggled to drive the side brush curved arm 302 to flip, and the height of the side brush assembly 3 from the ground is lifted. At this time, the side brush spring arm 303 abuts against the spring arm seat 4 and forms a downward pressure state, and the side brush spring arm 303 is deformed and compressed. And when the side brush assembly 3 is lifted to the highest position, the rotary motion output device 13 stops rotating. When the rotary motion output device 13 rotates forward for the next time and drives the second gear 10 to rotate forward, after the elastic deformation of the side brush spring arm 303 is restored and the second abutting surface 20212 cancels the abutting force on the protrusion 301, the first abutting surface 20211 abuts against the protrusion 301 again. At this time, the side brush curved arm 302 is reset from the lifted state to the lowered state, so that when the second gear 10 rotates forward, the side brush assembly 3 repeats the ground cleaning work. Thus, when the cleaning robot sweeps liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped away from the ground, avoiding the side brush assembly 3 from contacting the dirt, improving the cleanliness of the side brush device and avoiding secondary pollution during the ground cleaning process.

[0095] Other transmission structures can be adopted between the rotary motion output device 13 and the second gear 10 for power transmission. For example, the side brush device may further include a gear set 14, and the gear set 14 may include at least one driving gear, so that the gear set 14 meshes with the second gear 10, and the output shaft of the rotary motion output device 13 is coaxially fixed to the driving gear for power input in the gear set 14.

[0096] In summary, the embodiments of the present utility model disclose a side brush device. The side brush device may include a side brush housing 1, a side brush transmission member 2, and a side brush assembly 3. A receiving cavity 1001 is provided inside the side brush housing 1. The side brush transmission member 2 is vertically installed in the receiving cavity 1001. A first abutting surface 20211 and a second abutting surface 20212 are provided along the circumferential direction of the side brush transmission member 2. The side brush assembly 3 penetrates through the side brush housing 1, and the side brush assembly 3 includes a protruding column 301. The first abutting surface 20211 and the second abutting surface 20212 are respectively used to abut against the protruding column 301, and drive the side brush assembly 3 to flip through the abutting force. Thus, when the cleaning robot sweeps liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped to keep the side brush assembly 3 away from the ground, avoiding contact between the side brush assembly 3 and dirt, improving the cleanliness of the side brush device, and preventing secondary pollution during the ground cleaning process.

[0097] Based on the second aspect of the present utility model, a cleaning robot is further provided. The cleaning robot includes the side brush device described in any one of the above-mentioned utility model contents.

[0098] In summary, the embodiments of the present utility model disclose a cleaning robot. The cleaning robot may include a side brush housing 1, a side brush transmission member 2, and a side brush assembly 3. A receiving cavity 1001 is provided inside the side brush housing 1. The side brush transmission member 2 is vertically installed in the receiving cavity 1001. A first abutting surface 20211 and a second abutting surface 20212 are provided along the circumferential direction of the side brush transmission member 2. The side brush assembly 3 penetrates through the side brush housing 1, and the side brush assembly 3 includes a protruding column 301. The first abutting surface 20211 and the second abutting surface 20212 are respectively used to abut against the protruding column 301, and drive the side brush assembly 3 to flip through the abutting force. Thus, when the cleaning robot sweeps liquid dirt or is in the single mopping mode, the side brush assembly 3 can be flipped to keep the side brush assembly 3 away from the ground, avoiding contact between the side brush assembly 3 and dirt, improving the cleanliness of the side brush device, and preventing secondary pollution during the ground cleaning process.

[0099] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0100] It is easy for those skilled in the art to think that any combination application of the above-mentioned various embodiments is feasible. Therefore, any combination among the above-mentioned various embodiments is an implementation solution of the present utility model. However, due to space limitations, this specification will not elaborate on each of them here.

[0101] In the description provided herein, numerous specific details are set forth. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail so as not to obscure the understanding of this description.

[0102] Similarly, it should be understood that, in order to streamline the present invention and assist in understanding one or more of the various inventive aspects, in the foregoing description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0103] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A side brush device, characterized in that: The side brush device comprises: A side brush housing (1), wherein a receiving cavity (1001) is provided in the side brush housing (1); A side brush transmission member (2), the side brush transmission member (2) being vertically mounted in the accommodating cavity (1001), wherein a first abutting surface (20211) and a second abutting surface (20212) are provided along the circumference of the side brush transmission member (2); A side brush assembly (3), the side brush assembly (3) being arranged through the side brush housing (1), wherein the side brush assembly (3) comprises a protruding post (301); The first abutting surface (20211) and the second abutting surface (20212) are respectively used to abut against the protruding column (301), and drive the side brush assembly (3) to flip through the abutting force.

2. The side brush device according to claim 1, characterized in that: The side brush assembly (3) further comprises a side brush curved arm (302) and a side brush elastic arm (303), wherein the protruding column (301) and the side brush elastic arm (303) are respectively fixed on the side brush curved arm (302); The side brush housing (1) is provided with an elastic arm seat (4), and when the protruding column (301) flips, the side brush elastic arm (303) is driven to abut against the elastic arm seat (4) and deform, and the deformation of the side brush elastic arm (303) is restored, so that the first abutting surface (20211) abuts against the protruding column (301), or the second abutting surface (20212) abuts against the protruding column (301), so as to drive the side brush curved arm (302) to flip and reset.

3. The side brush device according to claim 2, characterized in that: The side brush housing (1) comprises a first housing (101) and a second housing (102) located below the first housing (101), wherein the first housing (101) and the second housing (102) cooperate to form the accommodating cavity (1001); At least two first limiting ribs (5) are arranged on the second shell (102), wherein each two first limiting ribs (5) cooperate with the protruding column (301) to form a limit so as to limit the flipping angle of the side brush assembly (3).

4. The side brush device according to claim 3, characterized in that: The side brush curved arm (302) comprises a curved arm front end (3021) and a curved arm rear end (3022) connected to the curved arm front end (3021); wherein, A second limiting rib (6) is provided on the first shell (101), and a third limiting rib (7) is provided on the second shell (102); the second limiting rib (6) and the third limiting rib (7) cooperate to limit the front end (3021) of the curved arm along the radial direction of the side brush transmission component (2).

5. The side brush device according to claim 4, characterized in that: The side brush transmission member (2) comprises a transmission body (201) and a transmission abutment portion (202) extending radially along the transmission body (201), and a transmission abutment groove (2021) is provided on the transmission abutment portion (2022), so that the two side walls of the transmission abutment groove (2021) respectively form the first abutment surface (20211) and the second abutment surface (20212).

6. The side brush device according to claim 5, characterized in that: The first shell (101) is provided with a first assembly groove (1011) for assembling the front end (3021) of the crank arm, and the second shell (102) is provided with a second assembly groove (1021) for assembling the front end (3021) of the crank arm, and the first assembly groove (1011) and the second assembly groove (1021) cooperate to form a limit for the front end (3021) of the crank arm along the axial direction of the transmission body (201).

7. The side brush device according to claim 4, characterized in that: The side brush assembly (3) further comprises a side brush bristle bundle (304) located at the end of the side brush curved arm (302) away from the protruding column (301), wherein the side brush curved arm (302) is flipped under the drive of the protruding column (301) to raise or lower the height of the side brush bristle bundle (304).

8. The side brush device according to claim 5, characterized in that: A threaded through hole (2011) is provided in the vertical direction of the transmission body (201), and the side brush device further comprises: A threaded connection member (8), wherein the threaded connection member (8) is threadedly connected to the transmission body (201) via the threaded through hole (2011); A transmission shaft (9), wherein the transmission shaft (9) is coaxially arranged with the transmission body (201), and the transmission shaft (9) is connected to the threaded connection member (8) so as to drive the transmission body (201) to rotate via the transmission shaft (9).

9. The side brush device according to claim 8, characterized in that: The side brush device also includes: a second gear (10), the second gear (10) being sleeved on the transmission shaft (9) and movably connected to the transmission shaft (9), wherein the second gear (10) is coaxially fixed to the side brush housing (1) so as to drive the side brush housing (1) to rotate via the second gear (10); A one-way transmission member (11), wherein the one-way transmission member (11) is fixed to the transmission shaft (9); wherein: When the second gear (10) rotates forward, the side brush housing (1) is driven to rotate, the protruding column (301) abuts against the first abutting surface (20211), and drives the side brush transmission member (2) to rotate; When the second gear (10) rotates in the reverse direction, driving the side brush housing (1) to rotate, the protruding column (301) moves to abut against the second abutting surface (20212), and under the action of the abutting force of the second abutting surface and the locking force of the one-way transmission member (11) on the side brush transmission member (2), the protruding column (301) drives the side brush curved arm (302) to flip, and the side brush elastic arm (303) is compressed.

10. The side brush device according to claim 9, characterized in that: The second gear (10) is clamped and fixed to the side brush housing (1).

11. The side brush device according to claim 9, characterized in that: The side brush device further comprises a gear housing (12) and a rotational motion output device (13), wherein the second gear (10) and the one-way transmission member (11) are both installed in the gear housing (12), and the rotational motion output device (13) is transmission-connected with the second gear (10) so as to drive the side brush housing (1) to rotate via the rotational motion output device (13).

12. A cleaning robot, characterized in that: The cleaning robot comprises a side brush device as described in any one of claims 1-11.

Images