Rolling brush device and cleaning robot

Abstract

The utility model provides a rolling brush device and a cleaning robot. The rolling brush device comprises a shell part, a first rolling brush assembly, a second rolling brush assembly, a first driving device and a second driving device. The shell part comprises an opening part; the first rolling brush assembly is rotatably arranged on the shell part, and at least part of the first rolling brush assembly penetrates through the opening part and is located below the shell part; the second rolling brush assembly is rotatably arranged on the shell part, at least part of the second rolling brush assembly penetrates through the opening part and is located below the shell part, and the free end of the first rolling brush assembly and the free end of the second rolling brush assembly are arranged in a spaced mode; the first driving device is arranged on the shell part and used for driving the first rolling brush assembly to rotate. The second driving device is arranged on the shell part and used for driving the second rolling brush assembly to rotate, and the first rolling brush assembly and the second rolling brush assembly have the same rotating direction.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a rolling 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] The existing sweeping robot generally adopts a single rolling brush structure. When the rolling brush is working, a large amount of hair is often entangled on the rolling brush. The entangled hair can reduce the efficiency of the rolling brush and can cause damage to the motor and / or gear train that rotates the rolling brush. In addition, due to the entanglement of the hair in the bristles, it is difficult to remove the hair from the rolling brush, making the cleaning process of these hairs very troublesome.

[0004] The existing sweeping robot generally includes a hair cutting structure. These longer hairs are cut and then sucked by the vacuum suction port. However, the addition of the hair cutting structure makes the structure of the sweeping robot complex. CONTENT OF THE UTILITY MODEL

[0005] The present disclosure provides a rolling brush device and a cleaning robot.

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

[0007] a housing component, the housing component comprising an opening portion;

[0008] a first rolling brush assembly rotatably disposed in the housing component, and at least a portion of the first rolling brush assembly passes through the opening portion and is located below the housing component;

[0009] a second rolling brush assembly rotatably disposed in the housing component, and at least a portion of the second rolling brush assembly passes through the opening portion and is located below the housing component, the free end of the first rolling brush assembly and the free end of the second rolling brush assembly being spaced apart;

[0010] a first driving device provided in the housing component for driving the first rolling brush assembly to rotate; and

[0011] a second driving device provided in the housing component for driving the second rolling brush assembly to rotate, wherein the first rolling brush assembly and the second rolling brush assembly have the same rotation direction.

[0012] According to the rolling brush device of at least one embodiment of the present disclosure, the first rolling brush assembly comprises:

[0013] a first cylinder member rotatable by a first driving device;

[0014] a first brush strip disposed on an outer surface of the first cylinder member and helically disposed along the outer surface of the first cylinder member; and

[0015] a first bristle row disposed on an outer surface of the first cylinder member and helically disposed along the outer surface of the first cylinder member.

[0016] The roller brush device according to at least one of the embodiments of the present disclosure, the first roller brush assembly further comprises:

[0017] a first fixing portion detachably disposed on the housing member;

[0018] a first support portion fixed to the first fixing portion and having a central hole, wherein the first cylinder member is rotatably disposed on the first support portion through a bearing;

[0019] a first transmission shaft having one end in transmission connection with the first driving device and the other end in fixed connection with the first cylinder member.

[0020] The roller brush device according to at least one of the embodiments of the present disclosure, one end of the first cylinder member forms a labyrinth seal with the first fixing portion, and the other end of the first cylinder member forms a free end of the first roller brush assembly.

[0021] The roller brush device according to at least one of the embodiments of the present disclosure, the number of the first brush strip is different from that of the first bristle row.

[0022] The roller brush device according to at least one of the embodiments of the present disclosure, the second roller brush assembly comprises:

[0023] a second cylinder member rotatable by a second driving device;

[0024] a second brush strip disposed on an outer surface of the second cylinder member and helically disposed along the outer surface of the second cylinder member; and

[0025] a second bristle row disposed on an outer surface of the second cylinder member and helically disposed along the outer surface of the second cylinder member.

[0026] The roller brush device according to at least one of the embodiments of the present disclosure, the second roller brush assembly further comprises:

[0027] A second fixing portion is detachably provided in the housing portion;

[0028] A second supporting portion is fixed to the second fixing portion, and a central hole is formed in the second supporting portion, wherein the second cylinder portion is rotatably provided in the second supporting portion through a bearing;

[0029] A second transmission shaft is transmissionally connected at one end to the second driving device, and is fixedly connected at the other end to the second cylinder portion.

[0030] According to the brush rolling device of at least one embodiment of the present disclosure, a labyrinth seal is formed between one end of the second cylinder portion and the second fixing portion, and the other end of the second cylinder portion is formed as a free end of the second brush rolling assembly.

[0031] According to the brush rolling device of at least one embodiment of the present disclosure, the number of the second brush strips is different from that of the second bristle rows.

[0032] According to another aspect of the present disclosure, a cleaning robot is provided, which comprises the above brush rolling device. BRIEF DESCRIPTION OF DRAWINGS

[0033] 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.

[0034] Figure 1 FIG. 1 is a structure diagram of a cleaning robot according to one embodiment of the present disclosure.

[0035] Figure 2 FIG. 2 is a structure diagram of the cleaning robot of FIG. 1 from another angle.

[0036] Figure 3 FIG. 3 is a structure diagram of an edge brush device according to one embodiment of the present disclosure.

[0037] Figure 4 FIG. 4 is an exploded structure diagram of the edge brush device of FIG. 3.

[0038] Figure 5 FIG. 5 is a sectional structure diagram (lowered state) of the edge brush device according to one embodiment of the present disclosure.

[0039] Figure 6 FIG. 6 is a sectional structure diagram (raised state) of the edge brush device according to one embodiment of the present disclosure.

[0040] Figure 7is a cross-sectional structural schematic diagram of a partial structure of the edge brush device according to one embodiment of the present disclosure (disassembled state).

[0041] Figure 8 is a cross-sectional structural schematic diagram of a partial structure of the edge brush device according to one embodiment of the present disclosure (assembled state).

[0042] Figure 9 is a schematic diagram of the cooperation relationship between the unlocking button and the adapter according to one embodiment of the present disclosure.

[0043] Figure 10 is a structural schematic diagram of the cooperation relationship between the unlocking button and the adapter from another angle according to one embodiment of the present disclosure.

[0044] Figure 11 is a structural schematic diagram of the roller brush device according to one embodiment of the present disclosure.

[0045] Figure 12 is a structural schematic diagram of the roller brush device from another angle according to one embodiment of the present disclosure.

[0046] Figure 13 is a structural schematic diagram of the first driving device and the second driving device of the roller brush device according to one embodiment of the present disclosure.

[0047] Figure 14 is a partial structural schematic diagram of the first driving device according to one embodiment of the present disclosure.

[0048] Figure 15 is a structural schematic diagram of a partial structure of the first driving device from another angle according to one embodiment of the present disclosure.

[0049] Figure 16 is a cross-sectional structural schematic diagram of a partial structure of the roller brush device according to one embodiment of the present disclosure.

[0050] Figure 17 is a structural schematic diagram of the first roller brush assembly according to one embodiment of the present disclosure.

[0051] Figure 18 is a structural schematic diagram of the lifting device according to one embodiment of the present disclosure.

[0052] Figure 19 is a structural schematic diagram of the lifting device from another angle according to one embodiment of the present disclosure.

[0053] Figure 20 is a schematic diagram of the lifting device according to one embodiment of the present disclosure.

[0054] Figure 21is a structural schematic view of a rolling brush device according to an embodiment of the present disclosure in a lowered state.

[0055] Figure 22 is a structural schematic view of a rolling brush device according to an embodiment of the present disclosure in a raised state.

[0056] Specifically, the reference signs in the drawings are as follows:

[0057] 100 base

[0058] 200 edge brush device

[0059] 210 drive motor

[0060] 220 lifting flange

[0061] 230 adapter

[0062] 231 guide groove

[0063] 232 mounting groove

[0064] 240 edge brush assembly

[0065] 241 limiting groove

[0066] 242 clamping protrusion

[0067] 250 limiting screw

[0068] 260 first spring

[0069] 270 unlocking button

[0070] 271 guide protrusion

[0071] 280 second spring

[0072] 300 rolling brush device

[0073] 310 housing component

[0074] 320 first rolling brush assembly

[0075] 321 first cylinder component

[0076] 322 first brush bar

[0077] 323 first bristle row

[0078] 324 first fixed portion

[0079] 325 first support portion

[0080] 326 first transmission shaft

[0081] 330 second rolling brush assembly

[0082] 331 second barrel member

[0083] 332 second brush bar

[0084] 333 second bristle row

[0085] 340 first driving device

[0086] 341 first motor

[0087] 342 first driving disc

[0088] 350 second driving device

[0089] 351 second motor

[0090] 400 steering wheel

[0091] 500 traveling wheel

[0092] 600 lifting device

[0093] 610 fixed seat

[0094] 620 first connecting rod

[0095] 630 second connecting rod

[0096] 640 first hinge

[0097] 641 first slot structure

[0098] 650 second hinge

[0099] 651 second slot structure

[0100] 660 transition piece

[0101] 670 third connecting rod

[0102] 680 fixing piece

[0103] 690 elastic member

[0104] 695 lifting jacks

[0105] 700 pull rod assembly

[0106] 800 housing DETAILED DESCRIPTION

[0107] The present disclosure will be further described with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the relevant content, and are not intended to limit the present disclosure. In addition, it should be noted that, for the purpose of description, only parts related to the present disclosure are shown in the drawings.

[0108] It should be noted that the embodiments and features of the embodiments in the present disclosure can be combined if not in conflict. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0109] Unless otherwise specified, the exemplary embodiments / examples shown will be understood as providing exemplary features of various details that can implement the technical ideas 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 ideas of the present disclosure.

[0110] In the drawings, cross-hatching and / or shading are generally used to indicate that a portion of one component is positioned above another component. As such, unless otherwise specified, the presence of cross-hatching or shading is not a requirement of the claimed disclosure and does not convey or imply any preference or requirement for specific material, material properties, dimensions, proportions, commonality of components between illustrated examples, and / or any other characteristic, attribute, property, or the like of a component. In addition, for clarity and / or descriptive purposes, the dimensions and / or relative dimensions of the components shown in the figures can be exaggerated. When the exemplary embodiments can be implemented differently, a specific process sequence can be performed in a different order from that 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 components.

[0111] When a component is referred to as being "on" or "over" another component, "connected to" or "coupled to" another component, it can be directly on, directly connected to, or directly coupled to the other component, or intervening components can be present. However, 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. For this reason, the term "connected" can refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0112] For descriptive purposes, the present disclosure can use spatial relative terms, such as "below," "lower," "under," "lessor," "above," "upper" and "on" to describe a relative position of one component to another as illustrated in the figures. Unless otherwise specified, the spatial relative terms are intended to encompass different orientations of the device in use, operation and / or manufacture in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "under" other elements or features would then be oriented "above" the other elements or features. 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 relative descriptors used herein interpreted accordingly.

[0113] 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," "having," "has," "with," or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term "comprising." It is also noted that the terms "substantial," "approximately," and other similar terms, as used herein, are used in a relative sense and not in an absolute sense. Thus, they are used to indicate that a value, calculation, and / or provided result is close to a value, calculation, and / or provided result that would be expected by a person of ordinary skill in the art.

[0114] 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.

[0115] As Figure 1 and Figure 2 illustrated, the cleaning robot of the present disclosure can be a self-mobility cleaning robot; as one example, the self-mobility cleaning robot can be a sweeping robot, a mopping robot, a self-mobility surface cleaning robot, or a sweeping-mopping integrated robot, etc. Among them, the self-mobility cleaning robot can perform autonomous cleaning operation, i.e., the cleaning robot can autonomously move on a surface to be cleaned to clean the surface to be cleaned by sucking up particles located on different parts of the surface to be cleaned.

[0116] In Figure 1 and Figure 2The self-moving surface cleaning robot shown is taken as an example, and the advancing direction of the cleaning robot is taken as the front, referring to the view direction of Figure 2 , the advancing direction of the cleaning robot is the side of the upper. The direction away from the advancing direction of the cleaning robot is the back, referring to the view direction of Figure 2 , the back of the cleaning robot refers to the side of the lower. Accordingly, the direction perpendicular to the front-back direction can be defined as the left-right direction.

[0117] The cleaning robot can include a chassis 100 capable of forming 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.

[0118] 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-back direction of the chassis 100, and on 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 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.

[0119] 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.

[0120] 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 the implementation form Figure 2 , the side brush device 200 is provided as two, which are provided on 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.

[0121] In addition, the chassis 100 is also provided with a rolling brush device 300, which is provided at the middle position of the front-back direction of the chassis 100, and the length direction is the width direction of the chassis 100. Figure 2The specific structure of the rolling brush device 300 is shown, 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 cleaned, thus, through the rotating rolling brush of the rolling brush device 300, the dirt on the surface to be cleaned can be disturbed, the dirt can be sucked to the dust box and other devices by the negative pressure adsorption, and the solid particles can be separated in the dust box and other devices, thus, the cleaning work of the surface to be cleaned is realized.

[0122] Figure 3 is a structural schematic diagram of the edge brush device 200 according to an embodiment of the present disclosure. Figure 4 is an exploded structural schematic diagram of the edge brush device 200 according to an embodiment of the present disclosure.

[0123] As shown in Figure 3 and Figure 4 , the edge brush device 200 of the present disclosure can include a driving motor 210, a lifting flange 220, an adapter 230 and an edge brush assembly 240 and the like.

[0124] 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.

[0125] Figure 5 is a cross-sectional structural schematic diagram of the edge brush device according to an embodiment of the present disclosure (lowered state). Figure 6 is a cross-sectional structural schematic diagram of the edge brush device according to an embodiment of the present disclosure (raised state).

[0126] 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 on the lifting flange 220, 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.

[0127] The adapter 230 is connected to the lifting flange 220 to rotate and lift with the lifting flange 220; in the present disclosure, the adapter 230 can be connected to the lifting flange 220 by screws and the like fasteners.

[0128] More specifically, a threaded hole is formed on the output shaft of the driving motor 210, and the threaded section of the limiting screw 250 is screwed into the threaded hole, and the maximum position of the downward movement of the lifting flange 220 is limited by the screw head of the limiting screw 250. That is, the maximum position of the upward movement of the lifting flange 220 can be limited by the first spring 260, and the maximum position of the downward movement of the lifting flange 220 can be limited by the limiting screw 250, with the position of the driving motor 210 unchanged.

[0129] The first spring 260 is arranged between the upper surface of the lifting flange 220 and the driving motor 210. The first spring 260 is always in a pre-compressed state, so that the brush assembly 240 can be in pressure contact with the ground.

[0130] Figure 7 is a sectional structure schematic diagram of a partial structure of the brush device according to one embodiment of the present disclosure (disassembled state). Figure 8 is a sectional structure schematic diagram of a partial structure of the brush device according to one embodiment of the present disclosure (assembled state). Figure 9 is a schematic diagram of the cooperation relationship between the unlocking button and the adapter according to one embodiment of the present disclosure. Figure 10 is a structure schematic diagram of the cooperation relationship between the unlocking button and the adapter from another angle according to one embodiment of the present disclosure.

[0131] As shown in Figure 7 to Figure 10 , the brush device 200 of the present disclosure further comprises: an unlocking button 270 for limiting the rotation of the brush assembly 240 relative to the adapter 230; and the adapter 230 for limiting the movement of the brush assembly 240 relative to the adapter 230 along the axial direction of the adapter 230 (i.e. the vertical direction). A second spring 280 is arranged between the unlocking button 270 and the lifting flange 220, and the second spring 280 is in a pre-compressed state, so that the unlocking button 270 has a tendency to remain in the second position through the elastic force of the second spring 280.

[0132] The unlocking button 270 is arranged to be movable along the axial direction of the adapter 230 and cannot rotate relative to the adapter 230. Specifically, the adapter 230 is provided with a guide groove 231, and the unlocking button 270 comprises a guide protrusion 271 which is slidably arranged in the guide groove 231.

[0133] The unlocking button 270 comprises a first position and a second position when the unlocking button 270 moves along the axial direction of the adapter 230, wherein the first position is higher than the second position; when the unlocking button 270 is in the first position, the rotation of the brush assembly 240 relative to the adapter 230 is allowed; when the unlocking button 270 is in the second position, the rotation of the brush assembly 240 relative to the adapter 230 is not allowed.

[0134] Specifically, the side brush assembly 240 includes a limiting groove 241, when the unlocking button is in the second position, the guide protrusion 271 can be located in the limiting groove 241, thereby, the unlocking button 270 can act as a force transmission element, so that the adapter 230, the unlocking button 270 and the side brush assembly 240 rotate synchronously.

[0135] In the present disclosure, the adapter 230 includes a mounting groove 232, the side brush assembly 240 includes 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 side brush assembly 240 relative to the adapter 230 through the adapter 230.

[0136] Therefore, when the side brush device of the present disclosure encounters an obstacle or a relatively high carpet during use, the side brush device can be lifted by a certain distance, so that the bristles of the side 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 side brush; at the same time, the side brush device of the present disclosure can also protect the carpet after being lifted.

[0137] When replacing the side brush, the unlocking button 270 can be pressed to the first position, at this time, the side brush assembly can be rotated, that is, the side brush can be disassembled; when installing a new side brush, the side brush assembly can be rotated, and the unlocking button 270 falls into the side brush assembly, so that the rotational freedom of the side brush assembly is limited.

[0138] Figure 11 is a structural schematic diagram of a side brush device 300 according to an embodiment of the present disclosure. Figure 12 is a structural schematic diagram of another angle of a side brush device 300 according to an embodiment of the present disclosure. Figure 13 is a structural schematic diagram of a first driving device 340 and a second driving device 350 of a side brush device 300 according to an embodiment of the present disclosure. Figure 14 is a partial structural schematic diagram of a first driving device 340 according to an embodiment of the present disclosure. Figure 15 is a structural schematic diagram of another angle of a partial structure of a first driving device 340 according to an embodiment of the present disclosure. Figure 16 is a sectional structural schematic diagram of a partial structure of a side brush device 300 according to an embodiment of the present disclosure. Figure 17 is a structural schematic diagram of a first side brush assembly 320 according to an embodiment of the present disclosure.

[0139] As Figure 11 to Figure 17As shown, 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.

[0140] The housing component 310 is rotatably connected to the chassis 100 of the cleaning robot, and specifically, the pivot axis of the housing component 310 relative to the chassis 100 is a horizontal straight line in the left-right direction. Thus, the rolling brush device 300 of the present disclosure can generate a certain swinging action, which can raise the rolling brush device 300 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 can lower the rolling brush device 300 from a position separated from the surface to be cleaned to a position in contact with the surface to be cleaned.

[0141] 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. The opening portion and the vacuum suction portion are relatively common structures in the art, and the present disclosure will not be repeated here.

[0142] The first rolling brush assembly 320 is rotatably arranged in 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.

[0143] The second rolling brush assembly 330 is rotatably arranged in 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 with a spacing therebetween.

[0144] More preferably, the second rolling brush assembly 330 has a second axis, which is a horizontal straight line in the left-right direction, and at this time, the first axis can coincide with the second axis.

[0145] 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 with 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.

[0146] That is, the rolling brush device 300 of the present disclosure, by arranging two independent rolling brush assemblies, after the hair is wound onto 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 portion.

[0147] The first driving device 340 is arranged on the housing member 310 and is configured to drive the first rolling brush assembly 320 to rotate. The second driving device 350 is arranged on the housing member 310 and is configured to drive the second rolling brush assembly 330 to rotate. The first rolling brush assembly 320 and the second rolling brush assembly 330 have the same rotating direction.

[0148] 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. In this case, 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.

[0149] 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. In this case, 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.

[0150] In a specific embodiment, the first rolling brush assembly 320 includes a first cylinder member 321, a first brush strip 322 and a first bristle row 323. The first cylinder member 321 is driven by the first driving device 340 to rotate. The first brush strip 322 is arranged on the outer surface of the first cylinder member 321 and is helically 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 is helically arranged along the outer surface of the first cylinder member 321.

[0151] More preferably, the first rolling brush assembly 320 further includes a first fixing member 324, a first supporting member 325 and a first transmission shaft 326. The first fixing member 324 is detachably arranged on the housing member 310. The first supporting member 325 is fixed on the first fixing member 324 and is provided with a central hole. The first cylinder member 321 is rotatably arranged on the first supporting member 325 through a bearing. The other end of the first transmission shaft 326 is in fixed connection with the first cylinder member 321, and the end of the first transmission shaft 326 is in driving connection with the first driving device 340.

[0152] In this case, the first transmission shaft 326 can be in driving connection with the first driving disc 342, so that the first motor 341 can drive the first transmission shaft 326 to rotate.

[0153] In a preferred embodiment, a labyrinth seal is formed between one end of the first cylinder component 321 and the first fixed part 324, and the other end of the first cylinder component 321 forms a free end of the first rolling brush assembly 320, thereby preventing particles such as dust from entering the location where the bearing is located.

[0154] In the present disclosure, the number of the first brush strips 322 is different from the number 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.

[0155] With the structure of the first rolling brush assembly 320 being similar, the second rolling brush assembly 330 of the present disclosure comprises: a second cylinder component 331, second brush strips 332, and second bristle rows 333; the second cylinder component 331 is driven to be rotatable by a second driving device 350; the second brush strips 332 are arranged on the outer surface of the second cylinder component 331, and the second brush strips 332 are arranged spirally along the outer surface of the second cylinder component 331; the second bristle rows 333 are arranged on the outer surface of the second cylinder component 331, and the second bristle rows 333 are arranged spirally along the outer surface of the second cylinder component 331, wherein the spiral directions of the second brush strips 332 and the second bristle rows 333 are the same, the spiral directions of the first brush strips 322 and the first bristle rows 323 are the same, and the spiral directions of the second brush strips 332 and the first brush strips 322 are opposite.

[0156] The second rolling brush assembly 330 further comprises: a second fixed part, a second support part, and a second transmission shaft; the second fixed part is detachably arranged on the housing component 310; the second support part is fixed to the second fixed part, and the second support part is provided with a central hole; wherein the second cylinder component 331 is rotatably arranged on the second support 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 in fixed connection with the second cylinder component 331.

[0157] The second fixed part, the second support part, and the second transmission shaft of the second rolling brush assembly 330 of the present disclosure are respectively the same as the structure of the first rolling brush assembly 320, and the structure thereof is not shown in the drawings in the present disclosure.

[0158] Similar to the first rolling brush assembly 320, a labyrinth seal is formed between one end of the second cylinder component 331 and the second fixed part, and the other end of the second cylinder component 331 forms a free end of the second rolling brush assembly 330.

[0159] The number of the second brush strips 332 is different from the number of the second bristle rows 333. For example, the number of the second brush strips 332 can be set to three, and the number of the second bristle rows 333 can be set to two.

[0160] In a preferred embodiment, the gap between the first and second rolling brush assemblies of the present disclosure corresponds to the middle position of the vacuum port, that is, the first and second rolling brush assemblies of the present disclosure can be symmetrically arranged.

[0161] Figure 18 FIG. 6 is a structural schematic diagram of a lifting device 600 according to an embodiment of the present disclosure. Figure 19 FIG. 7 is a structural schematic diagram of another angle of the lifting device 600 according to an embodiment of the present disclosure. Figure 20 FIG. 8 is a principle diagram of the lifting device 600 according to an embodiment of the present disclosure. Figure 21 FIG. 9 is a structural schematic diagram of a rolling brush device 300 in a lowered state according to an embodiment of the present disclosure. Figure 22 FIG. 10 is a structural schematic diagram of the rolling brush device 300 in a lifted state according to an embodiment of the present disclosure.

[0162] As shown in FIG. 11, the lifting device 600 of the present disclosure is used to lift the rolling brush device 300 of the cleaning robot. The housing part 310 of the rolling brush device 300 is formed with a receiving groove, and the other end of the third connecting rod 670 is inserted into the receiving groove. Figure 18 to Figure 22

[0163] Specifically, the lifting device 600 of the present disclosure includes a fixing seat 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.

[0164] The fixing seat 610 of the present disclosure can be directly or indirectly fixed to the chassis 100 of the cleaning robot; the middle part of the first connecting rod 620 is hinged to the fixing seat 610 (the pivot axis is a horizontal straight line in the left-right direction); the middle part of the second connecting rod 630 is also hinged to the fixing seat 610 (the pivot axis is a horizontal straight line in the left-right direction); thus, the first connecting rod 620 and the second connecting rod 630 of the present disclosure can form a parallel connecting rod structure.

[0165] One end of the first connecting rod 620 and the second connecting rod 630 is hinged to the first hinge 640; the other end of the first connecting rod 620 and the second connecting rod 630 is hinged to the second hinge 650; thus, when the first hinge 640 is driven to be lowered, the second hinge 650 will produce a lifting action.

[0166] 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 connecting rod 670.

[0167] ​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 pivoting 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.

[0168] The lifting device 600 of the present disclosure further comprises a lifting ram 695 driven to generate movement in the vertical direction; wherein the lifting ram 695 is used to drive the first hinge 640 to lower.

[0169] Specifically, the lifting ram 695 of the present disclosure can be guided by a guide device directly or indirectly arranged on the chassis 100 and can generate movement in the vertical direction, wherein the downward movement process of the lifting ram 695 is driven by the following pull rod assembly 700. That is, the cleaning robot further comprises a pull rod assembly 700 used to drive the lifting ram 695 of the lifting device 600 to lower.

[0170] 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.

[0171] Referring again to Figure 21 and Figure 22 , when the pull rod assembly 700 is in a position to drag the cleaning robot, the lifting ram 695 is at the maximum position in the upward direction; the upward movement process of the lifting ram 695 can be achieved by the restoring force of the elastic component 690. When the pull rod assembly 700 is stored in the housing 800 of the cleaning robot, the lifting ram 695 is at the maximum position in the downward direction, at this time the downward movement process of the lifting ram 695 can be driven by the rotation process of the pull rod assembly 700. Wherein the housing 800 can be fixed to the chassis 100.

[0172] At this time, as shown in Figure 21 , when the lifting ram 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 ram 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.

[0173] In one embodiment, the lifting device 600 further comprises a resilient component 690, one end of the resilient component 690 is arranged on the second hinge 650, and one end of the resilient component 690 is arranged on the first connecting rod 620, wherein the resilient component 690 is in a stretched state. That is, when the lifting top rod 695 moves downward, the resilient component 690 (spring) will be further stretched and stored. When the lifting top rod 695 is allowed to rise by the pull rod assembly 700, the energy stored by the resilient component 690 will be released, and the whole lifting device will move.

[0174] 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.

[0175] The lifting device of the present disclosure realizes the lifting of the rolling brush device through a mechanical structure when in use, occupies less space and has low cost; and does not need electric control, and is simple to operate. The mechanical structure has high reliability and long service life. Correspondingly, when the cleaning robot carries and pushes the mapping, the rolling brush device does not contact the ground, thereby solving the technical problem in the prior art that the rolling brush contacting the ground increases the friction force on the ground, thereby affecting the user experience.

[0176] In the description of the present disclosure, the description of the terms "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" 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 description, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Moreover, 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 present description and the features of the different embodiments / ways or examples without contradiction.

[0177] 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 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 "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0178] Those skilled in the art should understand that the above 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 roller brush device, characterized in that, include: Housing component, the housing component including an opening; A first roller brush assembly is rotatably disposed on the housing component, and at least a portion of the first roller brush assembly passes through the opening and is located below the housing component; A second roller brush assembly is rotatably disposed on the housing component, and at least a portion of the second roller brush assembly passes through the opening and is located below the housing component, with a spaced distance between the free ends of the first roller brush assembly and the free ends of the second roller brush assembly. A first driving device is disposed on the housing component and is used to drive the first roller brush assembly to rotate. as well as A second driving device is disposed on the housing component and is used to drive the second roller brush assembly to rotate, wherein the first roller brush assembly and the second roller brush assembly have the same direction of rotation.

2. The roller brush device according to claim 1, characterized in that, The first roller brush assembly includes: A first cylindrical component, which is driven by a first driving device to be able to rotate; A first brush strip is disposed on the outer surface of the first cylindrical component, and the first brush strip is spirally arranged along the outer surface of the first cylindrical component; and The first bristle row is disposed on the outer surface of the first cylindrical component, and the first bristle row is spirally arranged along the outer surface of the first cylindrical component.

3. The roller brush device according to claim 2, characterized in that, The first roller brush assembly also includes: A first fixing part is detachably disposed on the housing component; A first support portion is fixed to a first fixing portion, and the first support portion has a central hole; wherein, the first cylindrical component is rotatably disposed on the first support portion via a bearing; A first drive shaft, one end of which is connected to the first drive device, and the other end of which is fixedly connected to the first cylindrical component.

4. The roller brush device according to claim 3, characterized in that, A labyrinth seal is formed between one end of the first cylindrical component and the first fixed part, and the other end of the first cylindrical component is formed as the free end of the first roller brush assembly.

5. The roller brush device according to claim 2, characterized in that, The number of the first brush strips is different from the number of the first bristle rows.

6. The roller brush device according to claim 1, characterized in that, The second roller brush assembly includes: The second cylindrical component is driven by the second driving device to be able to rotate; A second brush strip is disposed on the outer surface of the second cylindrical component, and the second brush strip is spirally arranged along the outer surface of the second cylindrical component; and The second bristle row is disposed on the outer surface of the second cylindrical component, and the second bristle row is spirally arranged along the outer surface of the second cylindrical component.

7. The roller brush device according to claim 6, characterized in that, The second roller brush assembly also includes: The second fixing part is detachably disposed on the housing component; The second support part is fixed to the second fixing part and has a central hole; wherein the second cylindrical component is rotatably disposed on the second support part by means of a bearing; The second drive shaft has one end connected to the second drive device and the other end fixedly connected to the second cylindrical component.

8. The roller brush device according to claim 7, characterized in that, A labyrinth seal is formed between one end of the second cylindrical component and the second fixed part, and the other end of the second cylindrical component is formed as the free end of the second roller brush assembly.

9. The roller brush device according to claim 6, characterized in that, The number of the second brush strips is different from the number of the second bristle rows.

10. A cleaning robot, characterized in that, The roller brush device includes any one of claims 1-9.

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