Side brush device and cleaning robot

Abstract

The utility model provides a side brush device and a cleaning robot. The side brush device comprises a driving motor, a lifting flange, an adapter and a side brush assembly, the lifting flange is arranged on the driving motor in a sliding manner and is driven by the driving motor to rotate; the adapter is connected to the lifting flange so as to rotate and lift along with the lifting flange; the side brush assembly is arranged on the adapter.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a side brush device and a cleaning robot, and belongs to the technical field of cleaning equipment. BACKGROUND

[0002] With the advancement of technology, more and more families use devices such as sweeping robots to complete the cleaning work of the ground.

[0003] However, the side brush device of the prior art sweeping robot cannot generally be lifted, and when encountering a carpet or a suddenly raised plane, the side brush is easily damaged, thereby affecting the service life of the cleaning robot.

[0004] In addition, as a consumable and a maintenance part, the side brush needs to be disassembled and assembled frequently. The side brush in the prior art is generally connected by screws or buckles. The screw connection makes the operation of the user inconvenient. When the buckle connection is used to fix the side brush, the accommodation of the side brush is caused. CONTENT OF THE UTILITY MODEL

[0005] The present disclosure provides a side brush device and a cleaning robot, which solve at least one of the above technical problems.

[0006] According to one aspect of the present disclosure, a side brush device is provided, comprising:

[0007] a driving motor;

[0008] a lifting flange, which is arranged to be slidably arranged on the driving motor and is driven to rotate by the driving motor;

[0009] an adapter connected to the lifting flange to rotate and lift with the lifting flange; and

[0010] a side brush assembly arranged on the adapter.

[0011] According to the side brush device of at least one embodiment of the present disclosure, a through hole is formed in the lifting flange, and the through hole is a non-circular hole; the driving motor includes an output shaft, a threaded hole is formed in the output shaft, a threaded segment of a limiting screw is screwed into the threaded hole, and the maximum position of the lifting flange in the downward direction is limited by a screw head of the limiting screw.

[0012] According to the side brush device of at least one embodiment of the present disclosure, a first spring is arranged between the upper surface of the lifting flange and the driving motor.

[0013] According to the side brush device of at least one embodiment of the present disclosure, further comprising:

[0014] An unlocking button is arranged to limit the rotation of the side brush assembly relative to the adapter.

[0015] According to at least one embodiment of the present disclosure, the unlocking button is arranged to be movable along the axial direction of the adapter and unable to rotate relative to the adapter.

[0016] According to at least one embodiment of the present disclosure, when the unlocking button is moved along the axial direction of the adapter, the unlocking button comprises a first position and a second position, wherein the first position is higher than the second position; when the unlocking button is located at the first position, the rotation of the side brush assembly relative to the adapter is allowed; and when the unlocking button is located at the second position, the rotation of the side brush assembly relative to the adapter is not allowed.

[0017] According to at least one embodiment of the present disclosure, the adapter is provided with a guide groove, and the unlocking button comprises a guide protrusion which is slidably arranged in the guide groove.

[0018] According to at least one embodiment of the present disclosure, the adapter comprises a mounting groove, and the side brush assembly comprises a clamping protrusion which is arranged in the mounting groove, and one side wall of the clamping protrusion is capable of cooperating with one side wall of the mounting groove to limit the movement of the side brush assembly relative to the adapter through the adapter.

[0019] According to at least one embodiment of the present disclosure, the side brush assembly comprises a limiting groove, and when the unlocking button is located at the second position, the guide protrusion is capable of being located in the limiting groove.

[0020] According to another aspect of the present disclosure, a cleaning robot is provided, which comprises the above-mentioned side brush device, wherein the driving motor of the side brush mechanism is fixed to the chassis of the cleaning robot. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure.

[0022] Figure 1 is a structural schematic diagram of a cleaning robot according to an embodiment of the present disclosure.

[0023] Figure 2 is a structural schematic diagram of a cleaning robot from another angle according to an embodiment of the present disclosure.

[0024] Figure 3 is a structural diagram of an edge brush device according to an embodiment of the present disclosure.

[0025] Figure 4 is an exploded structural diagram of an edge brush device according to an embodiment of the present disclosure.

[0026] Figure 5 is a sectional structural diagram of an edge brush device according to an embodiment of the present disclosure (lowered state).

[0027] Figure 6 is a sectional structural diagram of an edge brush device according to an embodiment of the present disclosure (raised state).

[0028] Figure 7 is a sectional structural diagram of a partial structure of an edge brush device according to an embodiment of the present disclosure (disassembled state).

[0029] Figure 8 is a sectional structural diagram of a partial structure of an edge brush device according to an embodiment of the present disclosure (assembled state).

[0030] Figure 9 is a diagram of a fitting relationship between an unlocking button and an adapter according to an embodiment of the present disclosure.

[0031] Figure 10 is a diagram of a fitting relationship between an unlocking button and an adapter according to an embodiment of the present disclosure.

[0032] Figure 11 is a structural diagram of a roller brush device according to an embodiment of the present disclosure.

[0033] Figure 12 is a structural diagram of a roller brush device according to an embodiment of the present disclosure.

[0034] Figure 13 is a structural diagram of a first driving device and a second driving device of a roller brush device according to an embodiment of the present disclosure.

[0035] Figure 14 is a structural diagram of a partial structure of a first driving device according to an embodiment of the present disclosure.

[0036] Figure 15 is a structural diagram of a partial structure of a first driving device according to an embodiment of the present disclosure.

[0037] Figure 16 is a sectional structural diagram of a partial structure of a roller brush device according to an embodiment of the present disclosure.

[0038] Figure 17 is a structural schematic diagram of a first rolling brush assembly according to an embodiment of the present disclosure.

[0039] Figure 18 is a structural schematic diagram of a lifting device according to an embodiment of the present disclosure.

[0040] Figure 19 is a structural schematic diagram of another angle of a lifting device according to an embodiment of the present disclosure.

[0041] Figure 20 is a principle diagram of a lifting device according to an embodiment of the present disclosure.

[0042] Figure 21 is a structural schematic diagram of a rolling brush device in a lowered state according to an embodiment of the present disclosure.

[0043] Figure 22 is a structural schematic diagram of a rolling brush device in a lifted state according to an embodiment of the present disclosure.

[0044] The reference numerals in the drawings are specifically as follows:

[0045] 100 base

[0046] 200 edge brush device

[0047] 210 driving motor

[0048] 220 lifting flange

[0049] 230 adapter

[0050] 231 guide groove

[0051] 232 installation groove

[0052] 240 edge brush assembly

[0053] 241 limiting groove

[0054] 242 clamping protrusion

[0055] 250 limiting screw

[0056] 260 first spring

[0057] 270 unlocking button

[0058] 271 guide protrusion

[0059] 280 second spring

[0060] 300 rolling brush device

[0061] 310 shell part

[0062] 320 first roller brush assembly

[0063] 321 first barrel component

[0064] 322 first brush strip

[0065] 323 first bristle row

[0066] 324 first fixed portion

[0067] 325 first support portion

[0068] 326 first transmission shaft

[0069] 330 second roller brush assembly

[0070] 331 second barrel component

[0071] 332 second brush strip

[0072] 333 second bristle row

[0073] 340 first driving device

[0074] 341 first motor

[0075] 342 first driving disc

[0076] 350 second driving device

[0077] 351 second motor

[0078] 400 steering wheel

[0079] 500 traveling wheel

[0080] 600 lifting device

[0081] 610 fixed seat

[0082] 620 first connecting rod

[0083] 630 second connecting rod

[0084] 640 first hinge

[0085] 641 first slot structure

[0086] 650 second hinge

[0087] 651 second slot structure

[0088] 660 transition piece

[0089] 670 third connecting rod

[0090] 680 fixing piece

[0091] 690 elastic member

[0092] 695 lift pins

[0093] 700 pull rod assembly

[0094] 800 housing. DETAILED DESCRIPTION

[0095] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the disclosure. In addition, it should be noted that only parts related to the present disclosure are shown in the drawings for the purpose of description.

[0096] It should be noted that the embodiments and features in the embodiments in the present disclosure can be combined with each other without conflict. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0097] Unless otherwise specified, the exemplary embodiments / examples shown will be understood as providing exemplary features of various details that can implement the technical concepts of the present disclosure in practice. Therefore, unless otherwise specified, the features of various embodiments / examples can be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of the present disclosure.

[0098] In the drawings, cross-hatching and / or shading are generally used to make the boundaries of adjacent sections clear. As such, unless specifically stated otherwise, the presence of cross-hatching or shading in no way limits the scope of any claims to only the portions of the sections being cross-hatched and / or shaded. In addition, in the drawings, the size and relative sizes of parts can be exaggerated for clarity and / or description purposes. When exemplary embodiments can be carried out differently, a specific process sequence can be performed in a different order than described. For example, two consecutively described processes can be performed substantially simultaneously or in an order opposite to that described. In addition, the same reference numerals represent the same parts.

[0099] When a component is referred to as being "on", "connected to", or "coupled to" another component, it can be directly on, connected, or coupled to the other component, or intervening components can be present. When a component is referred to as being "directly on", "directly connected to", or "directly coupled to" another component, there are no intervening components present. By contrast, when a component is referred to as being "connected to" or "coupled to" another component, it can be either directly or indirectly connected or coupled to the other component and can have one or more intervening components therebetween. To this end, the term "connected" can refer to physical or electrical connection, etc., with or without intervening components.

[0100] For purposes of the description hereinafter, spatial or directional terms, such as "below", "lower", "bottom", "bottomed", "above", "upper", "top", "up", "over", "higher", and "side" (e.g., as in "sidewall") are used with reference to the orientation of the component as shown in the drawings. The spatial or directional terms are intended to encompass different orientations of the device in use, operation, and / or manufacture, depending on the particular spatial or directional term being used. For example, if the device in the drawings were turned over, then a component described as "below" or "under" another component would then be oriented "above" the other component. Thus, the exemplary term "below" can encompass both an orientation of above and below. Moreover, the device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatial or directional terms used herein interpreted accordingly.

[0101] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "including", "includes", "containing", "contains", or "containing", "contains", or variants thereof are used in either the detailed description and / or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising" or "comprises" as an open transition term without precluding the presence of additional or other elements, integers, steps, operations, components, parts, and / or the like. It is also noted that as used herein, the terms "substantially", "approximately", and other similar terms, are used as terms of approximation and not as terms of degree unless the context clearly indicates otherwise. Accordingly, the terms "substantially" and "approximately" can each be construed to allow for a certain marginal deviation or error from the norm or exact value.

[0102] Figure 1 is a structural schematic view of a cleaning robot according to an embodiment of the present disclosure. Figure 2 is a structural schematic view of a cleaning robot according to an embodiment of the present disclosure.

[0103] As Figure 1 and Figure 2As shown, the cleaning robot of the present disclosure can be a self-moving cleaning robot; as an example, the self-moving cleaning robot can be a sweeping robot, a mopping robot, a self-moving surface cleaning robot, or a sweeping and mopping integrated robot, etc. Among them, the self-moving cleaning robot can perform autonomous cleaning operation, that is, the cleaning robot can autonomously move on the surface to be cleaned to clean the surface to be cleaned by sucking the particles located on different parts of the surface to be cleaned.

[0104] In Figure 1 and Figure 2 The self-moving surface cleaning robot shown is taken as an example, and the advancing direction of the cleaning robot is taken as front, and the view direction of Figure 2 , the advancing direction of the cleaning robot is the side of the upper, and the direction away from the advancing direction of the cleaning robot is taken as rear, and the view direction of Figure 2 , the rear of the cleaning robot refers to the side of the lower. Accordingly, the direction perpendicular to the front-rear direction can be defined as the left-right direction.

[0105] The cleaning robot can include a chassis 100 which can be formed as the body of the cleaning robot; the bottom of the chassis 100 is provided with a steering wheel 400 and a walking wheel 500, the steering wheel 400 is used to control the advancing direction of the cleaning robot, and the walking wheel 500 is used to drive the cleaning robot to advance.

[0106] As shown in Figure 2 , the walking wheel 500 of the present disclosure can be provided as two, which are respectively located at the approximate middle position of the front-rear direction of the chassis 100, and are located at both sides of the left-right direction of the chassis 100; and the steering wheel 400 is provided as three, which can be universal wheels. One steering wheel 400 is provided at the middle position of the left-right direction of the cleaning robot, and is close to the front end of the cleaning robot. The remaining two steering wheels 400 are provided as the rear end of the cleaning robot, and one is provided at each of the left and right ends of the cleaning robot.

[0107] In actual use, the walking wheel 500 can be driven and rotated, and by controlling the walking wheel 500 to rotate at the same speed, the cleaning robot can walk forward, and correspondingly, by controlling the walking wheel 500 to rotate at different speeds, the cleaning robot can be controlled to turn.

[0108] In the present disclosure, the chassis 100 is also provided with a side brush device 200, wherein the side brush device 200 can be provided as one or two; as shown in Figure 2 , the side brush device 200 is provided as two, which are provided at the left and right sides of the front end of the chassis 100; so that by rotating the side brush device 200, the dirt on the surface to be cleaned can be disturbed, and the cleaning of the surface to be cleaned can be realized.

[0109] In addition, the chassis 100 is further provided with a rolling brush device 300, which is arranged at a middle position of the chassis 100 in the front-rear direction, and the length direction of the rolling brush device 300 is the width direction of the chassis 100. Figure 2 The specific structure of the rolling brush device 300 is shown, and the rotating axis of the rolling brush device is parallel to the surface to be cleaned. When the rolling brush device 300 rotates, the surface to be cleaned can be swept, so that the dirt on the surface to be cleaned can be disturbed by the rotating rolling brush of the rolling brush device 300, and the dirt can be sucked to the dust box and other devices by the negative pressure adsorption mode, and the solid particles are separated in the dust box and other devices, so as to realize the cleaning operation of the surface to be cleaned.

[0110] Figure 3 is a structure diagram of the side brush device 200 according to an embodiment of the present disclosure. Figure 4 is an exploded structure diagram of the side brush device 200 according to an embodiment of the present disclosure.

[0111] As shown in Figure 3 and Figure 4 , the side brush device 200 of the present disclosure can include a driving motor 210, a lifting flange 220, an adapter 230, and a side brush assembly 240, etc.

[0112] The driving motor 210 of the present disclosure is arranged substantially vertically, and the body of the driving motor 210 can be directly or indirectly fixed to the chassis 100 of the cleaning robot, and the output shaft of the driving motor 210 can be freely rotated.

[0113] Figure 5 is a cross-sectional structure diagram of the side brush device according to an embodiment of the present disclosure (lowered state). Figure 6 is a cross-sectional structure diagram of the side brush device according to an embodiment of the present disclosure (raised state).

[0114] As shown in Figure 5 and Figure 6 , the lifting flange 220 is arranged to be slidably arranged on the driving motor 210 and is driven to rotate by the driving motor 210; specifically, the lifting flange 220 is formed in a cylindrical structure, and a through hole is formed in the lifting flange 220, and the through hole is a non-circular hole; wherein the axis of the through hole coincides with the axis of the lifting flange 220. Correspondingly, the output shaft of the driving motor 210 is adapted to the shape of the lifting flange 220, so that the lifting flange 220 can slide along the output shaft of the driving motor 210, and can also be driven to rotate by the driving motor 210.

[0115] The adapter 230 is connected to the lifting flange 220 to rotate and move up and down with the lifting flange 220; in this disclosure, the adapter 230 can be connected to the lifting flange 220 by fasteners such as screws.

[0116] More specifically, the output shaft of the drive motor 210 has a threaded hole, and the threaded section of the limit screw 250 is screwed into the threaded hole, limiting the maximum downward position of the lifting flange 220 by the screw head of the limit screw 250. That is, with the position of the drive motor 210 unchanged, the maximum upward position of the lifting flange 220 can be limited by the first spring 260, and the maximum downward position of the lifting flange 220 can be limited by the limit screw 250.

[0117] A first spring 260 is provided between the upper surface of the lifting flange 220 and the drive motor 210. The first spring 260 is always in a pre-compressed state, so that the side brush assembly 240 can make pressure contact with the ground.

[0118] Figure 7 This is a cross-sectional structural diagram (disassembled state) of a side brush device according to one embodiment of the present disclosure. Figure 8 This is a cross-sectional structural diagram (assembled state) of a side brush device according to one embodiment of the present disclosure. Figure 9 This is a schematic diagram illustrating the interaction between the unlock button and the adapter according to one embodiment of this disclosure. Figure 10 This is a structural schematic diagram from another angle illustrating the cooperation relationship between the unlock button and the adapter according to one embodiment of the present disclosure.

[0119] like Figure 7 to Figure 10 As shown, the side brush device 200 of this disclosure further includes: an unlocking button 270, which restricts the rotation of the side brush assembly 240 relative to the adapter 230; the adapter 230 restricts the movement of the side brush assembly 240 relative to the adapter 230 along the axial direction (i.e., the vertical direction) of the adapter 230. A second spring 280 is provided between the unlocking button 270 and the lifting flange 220. The second spring 280 is in a pre-compressed state, so that the elastic force of the second spring 280 can cause the unlocking button 270 to tend to remain in the second position.

[0120] The unlock button 270 is configured to move along the axial direction of the adapter 230, but cannot rotate relative to the adapter 230. Specifically, the adapter 230 is provided with a guide groove 231, and the unlock button 270 includes a guide protrusion 271, which is slidably disposed within the guide groove 231.

[0121] When the unlocking button 270 moves along the axial direction of the adapter 230, the unlocking button 270 comprises a first position and a second position, wherein the first position is higher than the second position; when the unlocking button 270 is located at the first position, the brush assembly 240 is allowed to rotate relative to the adapter 230; when the unlocking button 270 is located at the second position, the brush assembly 240 is not allowed to rotate relative to the adapter 230.

[0122] Specifically, the brush assembly 240 comprises a limiting groove 241, and the guide protrusion 271 can be located in the limiting groove 241 when the unlocking button is located at the second position, so that the unlocking button 270 can serve as a force transmission element, so that the adapter 230, the unlocking button 270 and the brush assembly 240 rotate synchronously.

[0123] In the present disclosure, the adapter 230 comprises a mounting groove 232, the brush assembly 240 comprises a clamping protrusion 242, the clamping protrusion 242 is arranged in the mounting groove 232, and one side wall (for example, the bottom wall or the top wall) of the clamping protrusion 242 can cooperate with one side wall (for example, the top wall or the bottom wall) of the mounting groove 232 to limit the movement of the brush assembly 240 relative to the adapter 230 through the adapter 230.

[0124] Therefore, when the brush device of the present disclosure encounters an obstacle or a relatively high carpet during use, the brush device can be lifted by a certain distance, so that the bristles of the brush device do not cause a large amount of interference to the ground, thereby reducing the wear and curling degree of the bristles and improving the reliability and service life of the entire brush; at the same time, the brush device of the present disclosure can also protect the carpet after being lifted.

[0125] When the brush is replaced, the unlocking button 270 can be pressed to the first position, at this time, the brush assembly can be rotated or the brush can be disassembled; when a new brush is installed, the brush assembly can be rotated, and the unlocking button 270 falls into the brush assembly, so that the rotational freedom degree of the brush assembly is limited.

[0126] Figure 11 FIG. 3 is a structural schematic diagram of a brush device 300 according to an embodiment of the present disclosure. Figure 12 FIG. 4 is a structural schematic diagram of another angle of the brush device 300 according to an embodiment of the present disclosure. Figure 13 FIG. 5 is a structural schematic diagram of a first driving device 340 and a second driving device 350 of the brush device 300 according to an embodiment of the present disclosure. Figure 14 FIG. 6 is a partial structural schematic diagram of the first driving device 340 according to an embodiment of the present disclosure. Figure 15 FIG. 7 is a structural schematic diagram of another angle of the partial structure of the first driving device 340 according to an embodiment of the present disclosure. Figure 16is a sectional structural schematic view of a partial structure of a rolling brush device 300 according to an embodiment of the present disclosure. Figure 17 is a structural schematic view of a first rolling brush assembly 320 according to an embodiment of the present disclosure.

[0127] As shown in Figure 11 to Figure 17 , the rolling brush device 300 of the present disclosure can include a housing component 310, a first rolling brush assembly 320, a second rolling brush assembly 330, a first driving device 340, and a second driving device 350.

[0128] The housing component 310 is rotatably connected to the chassis 100 of the cleaning robot; specifically, the pivot axis of the housing component 310 relative to the chassis 100 is a horizontal straight line in the left-right direction, so that the rolling brush device 300 of the present disclosure can generate a certain swinging action, which will cause the rolling brush device 300 to rise from a position in contact with the surface to be cleaned to a position separated from the surface to be cleaned, and vice versa, the reverse swinging action will cause the rolling brush device 300 to lower from a position separated from the surface to be cleaned to a position in contact with the surface to be cleaned.

[0129] In one embodiment, the housing component 310 includes an opening portion and a vacuum suction portion, wherein the opening portion is formed as a hole structure downward of the housing component 310; the vacuum suction portion is formed on the side wall of the housing component 310. As for the opening portion and the vacuum suction portion, they are relatively common structures in the art, and the present disclosure will not be repeated here.

[0130] The first rolling brush assembly 320 is rotatably arranged on the housing component 310, and at least part of the first rolling brush assembly 320 passes through the opening portion and is located below the housing component 310; in a preferred embodiment, the first rolling brush assembly 320 has a first axis, which is a horizontal straight line in the left-right direction.

[0131] The second rolling brush assembly 330 is rotatably arranged on the housing component 310, and at least part of the second rolling brush assembly 330 passes through the opening portion and is located below the housing component 310, and the free end of the first rolling brush assembly 320 and the free end of the second rolling brush assembly 330 are arranged at intervals.

[0132] More preferably, the second rolling brush assembly 330 has a second axis, which is a horizontal straight line in the left-right direction, at this time, the first axis can coincide with the second axis.

[0133] Of course, the first axis and the second axis of the present disclosure can also not coincide, for example, the first axis and the second axis are both arranged at an angle to the horizontal straight line in the left-right direction, that is, the first rolling brush assembly and the second rolling brush assembly are both arranged obliquely.

[0134] That is, the rolling brush device 300 of the present disclosure, by setting two independent rolling brush assemblies, after the hair is wound to the rolling brush assembly, it can move along the rolling brush assembly, and be separated from the rolling brush assembly at the gap position between the two rolling brush assemblies, and be sucked into the vacuum suction port.

[0135] The first driving device 340 is arranged on the housing member 310, and is used to drive the first rolling brush assembly 320 to rotate; the second driving device 350 is arranged on the housing member 310, and is used to drive the second rolling brush assembly 330 to rotate, wherein the first rolling brush assembly 320 and the second rolling brush assembly 330 have the same rotation direction.

[0136] In a specific embodiment, the first driving device 340 can include a first motor 341 and a first driving disc 342 in driving connection with the first motor 341. In a preferred embodiment, the first motor 341 can be in driving connection with the first driving disc 342 through a synchronous belt transmission mechanism, at this time, the first motor 341 can be directly or indirectly fixed on the housing member 310, and the first driving disc 342 can be directly or indirectly rotatably arranged on the housing member 310.

[0137] Similarly, the second driving device 350 can include a second motor 351 and a second driving disc in driving connection with the second motor 351. In a preferred embodiment, the second motor 351 can be in driving connection with the second driving disc through a synchronous belt transmission mechanism, at this time, the second motor 351 can be directly or indirectly fixed on the housing member 310, and the second driving disc can be directly or indirectly rotatably arranged on the housing member 310.

[0138] In a specific embodiment, the first rolling brush assembly 320 includes a first cylinder member 321, a first brush bar 322 and a first bristle row 323; the first cylinder member 321 is driven by the first driving device 340 to be rotatable; the first brush bar 322 is arranged on the outer surface of the first cylinder member 321, and the first brush bar 322 is spirally arranged along the outer surface of the first cylinder member 321; the first bristle row 323 is arranged on the outer surface of the first cylinder member 321, and the first bristle row 323 is spirally arranged along the outer surface of the first cylinder member 321.

[0139] More preferably, the first rolling brush assembly 320 further comprises a first fixed part 324, a first supporting part 325 and a first transmission shaft 326; the first fixed part 324 is detachably arranged on the housing part 310; the first supporting part 325 is fixed on the first fixed part 324, and the first supporting part 325 is provided with a central hole; wherein the first cylinder part 321 is rotatably arranged on the first supporting part 325 through a bearing; one end of the first transmission shaft 326 is in transmission connection with the first driving device 340, and the other end of the first transmission shaft 326 is fixedly connected with the first cylinder part 321.

[0140] At this time, the first transmission shaft 326 can be in transmission connection with the first driving disc 342, so that the first motor 341 can drive the first transmission shaft 326 to rotate.

[0141] In a preferred embodiment, a labyrinth seal is formed between one end of the first cylinder part 321 and the first fixed part 324, and the other end of the first cylinder part 321 is formed as a free end of the first rolling brush assembly 320, thereby preventing particles such as dust from entering the position where the bearing is located.

[0142] In the present disclosure, the number of the first brush strips 322 is different from that of the first bristle rows 323. For example, the number of the first brush strips 322 can be set to three, and the number of the first bristle rows 323 can be set to two.

[0143] With the structure similar to the first rolling brush assembly 320, the second rolling brush assembly 330 of the present disclosure comprises a second cylinder part 331, second brush strips 332 and second bristle rows 333; the second cylinder part 331 is driven by a second driving device 350 to be rotatable; the second brush strips 332 are arranged on the outer surface of the second cylinder part 331, and the second brush strips 332 are helically arranged along the outer surface of the second cylinder part 331; the second bristle rows 333 are arranged on the outer surface of the second cylinder part 331, and the second bristle rows 333 are helically arranged along the outer surface of the second cylinder part 331, wherein the helical directions of the second brush strips 332 and the second bristle rows 333 are the same, the helical directions of the first brush strips 322 and the first bristle rows 323 are the same, and the helical directions of the second brush strips 332 and the first brush strips 322 are opposite.

[0144] The second rolling brush assembly 330 further comprises a second fixed part, a second supporting part and a second transmission shaft; the second fixed part is detachably arranged on the housing part 310; the second supporting part is fixed on the second fixed part, and the second supporting part is provided with a central hole; wherein the second cylinder part 331 is rotatably arranged on the second supporting part through a bearing; one end of the second transmission shaft is in transmission connection with the second driving device 350, and the other end of the second transmission shaft is fixedly connected with the second cylinder part 331.

[0145] The second fixing part, the second support part, and the second drive shaft of the second roller brush assembly 330 disclosed herein have the same structure as those of the first roller brush assembly 320, and their structures will not be shown in the accompanying drawings in this disclosure.

[0146] Similar to the first roller brush assembly 320, a labyrinth seal is formed between one end of the second cylindrical component 331 and the second fixed part, and the other end of the second cylindrical component 331 is formed as the free end of the second roller brush assembly 330.

[0147] The number of second brush strips 332 and the number of second bristle rows 333 are different. For example, the number of second brush strips 332 can be set to three, and the number of second bristle rows 333 can be set to two.

[0148] In a preferred embodiment, the gap between the first roller brush assembly and the second roller brush assembly of this disclosure is set at the middle position of the vacuum suction port, that is, the first roller brush assembly and the second roller brush assembly of this disclosure can be arranged symmetrically.

[0149] Figure 18 This is a structural schematic diagram of a lifting device 600 according to one embodiment of the present disclosure. Figure 19 This is a structural schematic diagram of the lifting device 600 according to one embodiment of the present disclosure from another angle. Figure 20 This is a schematic diagram of a lifting device 600 according to one embodiment of the present disclosure. Figure 21 This is a schematic diagram of the roller brush device 300 in a lowered state according to one embodiment of the present disclosure. Figure 22 This is a schematic diagram of the roller brush device 300 in a raised state according to one embodiment of the present disclosure.

[0150] like Figure 18 to Figure 22 As shown, the lifting device 600 of this disclosure is used to lift the roller brush device 300 of the cleaning robot. A receiving groove is formed on the housing component 310 of the roller brush device 300, and the other end of the third link 670 is inserted into the receiving groove.

[0151] Specifically, the lifting device 600 disclosed herein includes: a fixed base 610, a first connecting rod 620, a second connecting rod 630, a first hinge 640, a second hinge 650, a transition piece 660, and a third connecting rod 670, etc.

[0152] The fixed base 610 of this disclosure can be directly or indirectly fixed to the chassis 100 of the cleaning robot; the middle part of the first link 620 is hinged to the fixed base 610 (the pivot axis is a horizontal straight line in the left and right direction); the middle part of the second link 630 is also hinged to the fixed base 610 (the pivot axis is a horizontal straight line in the left and right direction); thus, the first link 620 and the second link 630 of this disclosure can be formed into a parallel link structure.

[0153] One end of the first link 620 and the second link 630 are hinged to the first hinge 640; the other end of the first link 620 and the second link 630 are hinged to the second hinge 650; thus, when the first hinge 640 is driven to descend, the second hinge 650 will produce an ascending action.

[0154] The transition piece 660 can be driven by the second hinge 650 and move downward; that is, the transition piece 660 of the present disclosure can transmit the downward movement process of the second hinge 650 to the third link 670.

[0155] One end of the third link 670 is hinged to the transition piece 660, and the middle of the third link 670 is hinged to the fixed piece 680 (the pivot axis is a horizontal straight line in the left-right direction). In the present disclosure, the fixed piece 680 can be directly or indirectly fixed to the chassis 100.

[0156] The lifting device 600 of the present disclosure further comprises a lifting top rod 695 driven to produce movement in the vertical direction; wherein the lifting top rod 695 is used to drive the first hinge 640 to descend.

[0157] Specifically, the lifting top rod 695 of the present disclosure can be directly or indirectly guided by the guide device provided on the chassis 100 and can produce movement in the vertical direction, wherein the downward movement process of the lifting top rod 695 is driven by the following pull rod assembly 700. That is, the cleaning robot further comprises a pull rod assembly 700 for driving the lifting top rod 695 of the lifting device 600 to descend.

[0158] Specifically, the pull rod assembly 700 of the present disclosure can be in a storage state and a working state, wherein, as shown in Figure 21 , the pull rod assembly 700 is in the storage state, at this time the cleaning robot can be in a working state, that is, the cleaning robot can clean the surface to be cleaned. As shown in Figure 22 , the pull rod assembly 700 is in the working state, at this time the cleaning robot can be dragged by operating the pull rod assembly 700, at this time the cleaning robot is in a non-working state.

[0159] Referring again to Figure 21 and Figure 22When the pull rod assembly 700 is in the position of dragging the cleaning robot, the lifting top rod 695 is at the maximum position in the upward direction; the upward movement process of the lifting top rod 695 can be realized by the reset force of the elastic component 690. When the pull rod assembly 700 is stored in the shell 800 of the cleaning robot, the lifting top rod 695 is at the maximum position in the downward direction, at this time the downward movement process of the lifting top rod 695 can be driven by the rotation process of the pull rod assembly 700. Wherein, the shell 800 can be fixed to the chassis 100.

[0160] At this time, as shown in the figure, when the lifting top rod 695 is at the maximum position in the upward movement process, the roller brush device 300 is in a lowered state, in which at least part of the roller brush device 300 can be in contact with the surface to be cleaned and clean the surface to be cleaned. Conversely, when the lifting top rod 695 is at the maximum position in the downward movement process, the roller brush device 300 is in a lifted state, at this time, the roller brush device 300 will be lifted to a position away from the surface to be cleaned. Figure 21

[0161] In one embodiment, the lifting device 600 further comprises an elastic component 690, one end of the elastic component 690 is arranged on the second hinge 650, and one end of the elastic component 690 is arranged on the first connecting rod 620, wherein the elastic component 690 is in a stretched state. That is, when the lifting top rod 695 moves downward, the elastic component 690 (spring) will be further stretched and stored energy. When the pull rod assembly 700 allows the lifting top rod 695 to rise, the energy stored by the elastic component 690 will be released and make the whole lifting device move.

[0162] The first hinge 640 is provided with a first slot structure 641, and the lower end of the lifting top rod 695 can slide in the horizontal direction (front-rear direction) in the first slot structure 641. Similarly, the second hinge 650 is formed with a second slot structure 651, and the lower end of the transition piece 660 is hinged to one end of the third connecting rod 670, and the upper end of the transition piece 660 can slide in the horizontal direction (front-rear direction) in the second slot structure 651.

[0163] The lifting device of the present disclosure realizes the lifting of the roller brush device through a mechanical structure when in use, occupies less space and is low in cost; and does not need electric control, simple operation. The mechanical structure is high in reliability and long in service life. Correspondingly, the cleaning robot of the present disclosure does not contact the ground when carrying and pushing the map, which solves the technical problem in the prior art that the roller brush contacting the ground will increase the friction force on the ground, thereby affecting the user experience.

[0164] ​In the description of the specification, the description of the terms "one embodiment / way", "some embodiments / ways", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments / ways or examples. In addition, the person skilled in the art can combine and combine the different embodiments / ways or examples described in the specification and the features of the different embodiments / ways or examples, without contradiction.

[0165] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0166] The person skilled in the art should understand that the above-mentioned embodiments are only for clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A side brush device, characterized in that, The edge brush device comprises: a driving motor; a lifting flange arranged to be slidably arranged on the driving motor and driven to rotate by the driving motor; an adapter connected to the lifting flange to rotate and lift with the lifting flange; and an edge brush assembly arranged on the adapter. A through hole is formed on the lifting flange, and the through hole is a non-circular hole; the driving motor comprises an output shaft, a threaded hole is formed on the output shaft, and the threaded segment of a limiting screw is screwed into the threaded hole, and the screw head of the limiting screw limits the maximum position of the lifting flange in the downward direction.

2. The edge brush device of claim 1, wherein A first spring is arranged between the upper surface of the lifting flange and the driving motor.

3. The edge brush device of claim 1, wherein Further comprising:

4. The brush device of claim 1, wherein an unlocking button for limiting the rotation of the edge brush assembly relative to the adapter; the adapter is used to limit the movement of the edge brush assembly relative to the adapter along the axis of the adapter. The unlocking button is arranged to be movable along the axial direction of the adapter and cannot rotate relative to the adapter.

5. The edge brush device of claim 4, wherein When the unlocking button moves along the axial direction of the adapter, the unlocking button comprises a first position and a second position, wherein the first position is higher than the second position; when the unlocking button is in the first position, the edge brush assembly is allowed to rotate relative to the adapter; when the unlocking button is in the second position, the edge brush assembly is not allowed to rotate relative to the adapter.

6. The brush device of claim 5, wherein The adapter is provided with a guide groove, and the unlocking button comprises a guide protrusion which is slidably arranged in the guide groove.

7. The brush device of claim 6, wherein The adapter comprises a mounting groove, the edge brush assembly comprises a clamping protrusion, the clamping protrusion is arranged in the mounting groove, and one side wall of the clamping protrusion can cooperate with one side wall of the mounting groove to limit the movement of the edge brush assembly relative to the adapter through the adapter.

8. The brush device of claim 7, wherein The edge brush assembly comprises a limiting groove, and when the unlocking button is in the second position, the guide protrusion can be located in the limiting groove.

9. The brush device of claim 8, wherein The edge brush device comprises the edge brush device of any one of claims 1-9, wherein the driving motor of the edge brush mechanism is fixed to the chassis of the cleaning robot.

10. A cleaning robot, characterized in that, ​

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