Self-cleaner, autonomous mobile surface cleaning robot and cleaning head of handheld vacuum cleaner

Abstract

The utility model provides a self-cleaner, an autonomous mobile surface cleaning robot and a cleaning head of a handheld vacuum cleaner. The self-cleaning device comprises a long and thin component, first comb teeth and second comb teeth, the slender part is configured to be capable of rotating around the transverse direction under the driving of an external power source; the first comb teeth are connected with the slender part and rotate together with the slender part; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth are provided with edges in the radial direction of the slender part; the second comb teeth are arranged adjacent to the slender part and extend in the transverse direction of the slender part; wherein the second comb teeth can be engaged with the first comb teeth, and when the slender part rotates, the edges of the first comb teeth rotate from a first position where the edges of the first comb teeth are not engaged with the second comb teeth to a second position where the edges of the first comb teeth are engaged with the second comb teeth.

Description

Technical Field

[0001] The present invention relates to a self-cleaner, an autonomous mobile surface cleaning robot and a cleaning head of a handheld vacuum cleaner. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Household vacuum cleaning appliances are used to clean rooms by sucking up particles such as dust from the room's floor.

[0004] Conventional household vacuum cleaning devices may include a roller brush that agitates debris on a floor surface and collects the debris from the floor surface. For example, in the case of an autonomous mobile cleaning device, the roller brush may direct the debris toward a vacuum airflow generated by the cleaning device, and the vacuum airflow may direct the debris into a dust bin of the cleaning device.

[0005] However, since there are long hairs or threads on the surface to be cleaned, when the roller brush rotates over the surface to be cleaned, the hairs or threads will be entangled on the roller brush, which affects the cleaning effect of the roller brush. Moreover, when cleaning the roller brush, the hairs or threads entangled on the roller brush are difficult to be removed from the roller brush.

[0006] Therefore, it is necessary to design a self-cleaner to promptly clean the hair or silk thread that are entangled on the roller brush. Utility Model Content

[0007] In order to solve one of the above technical problems, the present disclosure provides a self-cleaner, an autonomous mobile surface cleaning robot, and a cleaning head for a handheld vacuum cleaner.

[0008] According to one aspect of the present disclosure, there is provided a self-cleaner comprising:

[0009] an elongated member configured to rotate in a lateral direction when driven by an external power source;

[0010] first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and

[0011] and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

[0012] According to the self-cleaner of at least one embodiment of the present disclosure, the at least one row of first comb teeth extends along a preset path on the elongated member.

[0013] According to the self-cleaner of at least one embodiment of the present disclosure, the path is a spiral path.

[0014] According to the self-cleaner of at least one embodiment of the present disclosure, the spiral path extends along the surface of the elongated member from a position at the first end of the elongated member to a position at the second end of the elongated member.

[0015] According to the self-cleaner of at least one embodiment of the present disclosure, the first comb teeth include a plurality of sheet-like members extending from an elongated member, and the edges are free ends of the sheet-like members.

[0016] According to the self-cleaner of at least one embodiment of the present disclosure, the second comb teeth include a plurality of sheet-like members extending from a base.

[0017] According to the self-cleaner of at least one embodiment of the present disclosure, an escape area is formed between the plurality of sheet-like members of the second comb teeth and the base.

[0018] According to the self-cleaner of at least one embodiment of the present disclosure, during the engagement of the first comb teeth with the second comb teeth, the edge of the first comb teeth can pass through the avoidance area.

[0019] According to the self-cleaner of at least one embodiment of the present disclosure, the avoidance area includes an avoidance surface, and the cross-section of the avoidance surface is arc-shaped.

[0020] According to the self-cleaner of at least one embodiment of the present disclosure, during the engagement of the first comb teeth with the second comb teeth, the distance between the edges of the plurality of sheet-like components of the first comb teeth and the avoidance area is not less than 0.5 mm.

[0021] According to another aspect of the present disclosure, there is provided an autonomous mobile surface cleaning robot, wherein the autonomous mobile surface cleaning robot is configured to be able to move on a surface to be cleaned; the autonomous mobile cleaning robot comprises:

[0022] housing assembly;

[0023] a stirring member mounted on the housing assembly, the stirring member including a plurality of extending bristles and rotatable about a transverse axis of the stirring member; and

[0024] A self-cleaner is installed near the stirring member and is used to clean the stirring member. The self-cleaner includes:

[0025] an elongated member configured to rotate in a lateral direction when driven by an external power source;

[0026] first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and

[0027] and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

[0028] According to the autonomous mobile surface cleaning robot of at least one embodiment of the present disclosure, the shell assembly has an opening facing the surface to be cleaned, the stirring member is arranged at the opening, and at least a portion of the stirring member extends below the opening of the shell assembly.

[0029] According to at least one embodiment of the autonomous mobile surface cleaning robot of the present disclosure, the housing assembly includes a vacuum suction port, and at least a portion of the vacuum suction port is located below the fixing member.

[0030] According to another aspect of the present disclosure, there is provided a cleaning head for a handheld vacuum cleaner, comprising:

[0031] a housing assembly, the housing assembly including a vacuum suction port to provide vacuum suction through the vacuum suction port;

[0032] a stirring member mounted on the housing assembly, the stirring member including a plurality of extending bristles and rotatable about a transverse axis of the stirring member; and

[0033] A self-cleaner is installed near the stirring member and is used to clean the stirring member. The self-cleaner includes:

[0034] an elongated member configured to rotate in a lateral direction when driven by an external power source;

[0035] first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and

[0036] and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

[0037] According to the cleaning head of the handheld vacuum cleaner of at least one embodiment of the present disclosure, the shell assembly has an opening facing the surface to be cleaned, the stirring member is arranged at the opening, and at least a portion of the stirring member extends below the opening of the shell assembly.

[0038] According to the cleaning head of the handheld vacuum cleaner of at least one embodiment of the present disclosure, at least a portion of the vacuum suction port is located below the fixing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0040] Figure 1 Schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0041] Figure 2 2 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure from another angle.

[0042] Figure 3 Schematic diagram of the structure of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0043] Figure 4 2 is a schematic structural diagram of a side brush assembly of a surface cleaning device according to an embodiment of the present disclosure (retracted state).

[0044] Figure 5 1 is a partial structural schematic diagram of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (retracted state).

[0045] Figure 6 Schematic diagram of the connection relationship of gears of a surface cleaning device according to one embodiment of the present disclosure.

[0046] Figure 7 1 is a schematic structural diagram of a side brush assembly of a surface cleaning device according to an embodiment of the present disclosure (in an expanded state).

[0047] Figure 81 is a partial structural schematic diagram of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (in an expanded state).

[0048] Figure 9 It is a structural schematic diagram of an eccentric wheel according to one embodiment of the present disclosure.

[0049] Figure 10 2 is a schematic structural diagram of a rocker component according to an embodiment of the present disclosure.

[0050] Figure 11 It is a structural schematic diagram of a cleaning component according to one embodiment of the present disclosure.

[0051] Figure 12 2 is a schematic structural diagram of a rotating member according to an embodiment of the present disclosure.

[0052] Figure 13 Schematic diagram of the structure of a fixing member according to one embodiment of the present disclosure.

[0053] The specific reference numerals in the figure are:

[0054] 100 housing assembly

[0055] 200 side brush assembly

[0056] 201 driving gear

[0057] 202 First coaxial gear

[0058] 203 Idler

[0059] 204 Second coaxial gear

[0060] 205 driven gear

[0061] 206 one-way bearing

[0062] 207 shaft

[0063] 210 matrix

[0064] 211 stopper

[0065] 220 brush arm

[0066] 221 base

[0067] 222 cover

[0068] 223 protrusion

[0069] 224 boss

[0070] 230 Cleaning Brush

[0071] 240 Power Components

[0072] 250 rocker assembly

[0073] 251 eccentric wheel

[0074] 251A limit plane

[0075] 252 joystick parts

[0076] 252A First Arm

[0077] 252B Second Arm

[0078] 252C fulcrum

[0079] 252D Avoidance Department

[0080] 260 Power Motor

[0081] 270 pivot shaft

[0082] 300 Cleaning Components

[0083] 310 stirring element

[0084] 320 Self-cleaner

[0085] 321 rotating parts

[0086] 321A Slender parts

[0087] 321B first comb tooth

[0088] 322 fixings

[0089] 322A base

[0090] 322B Second comb tooth

[0091] 400 steering wheel

[0092] 500 travel wheels

[0093] 600 Cleaning components. DETAILED DESCRIPTION

[0094] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0095] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0096] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0097] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0098] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may 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 purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0099] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially 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 accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0100] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values and / or the values provided that will be recognized by those of ordinary skill in the art.

[0101] Figure 1 Schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure. Figure 2 2 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure from another angle.

[0102] like Figure 1 and Figure 2 As shown, the surface cleaning device of the present disclosure can be a self-propelled surface cleaning device; as an example, the self-propelled surface cleaning device can be a sweeping robot, a mopping robot, an autonomous surface cleaning robot, or a sweeping and mopping robot. The self-propelled surface cleaning device can perform an autonomous cleaning operation, that is, the surface cleaning device can autonomously move over the surface to be cleaned to clean the surface by sucking particles located on different parts of the surface to be cleaned.

[0103] by Figure 1 and Figure 2 The sweeping and mopping robot shown in the figure is taken as an example, and the forward direction of the surface cleaning device is recorded as the front. Figure 2 The direction of view of the surface cleaning equipment is the upper side. The direction away from the surface cleaning equipment is the rear side. Figure 2 In the viewing direction of the surface cleaning device, the rear side refers to the lower side. Accordingly, the direction perpendicular to the front-rear direction can be defined as the left-right direction.

[0104] The surface cleaning device may include a housing assembly 100, which may form the body of the surface cleaning device. A steering wheel 400 and a running wheel 500 are provided at the bottom of the housing assembly 100. The steering wheel 400 is used to control the direction of travel of the surface cleaning device, and the running wheel 500 is used to drive the surface cleaning device forward. The steering wheel 400 is provided at the front of the housing assembly 100, and the cleaning assembly 600 is rotatably connected to the bottom of the housing assembly 100 and is located at the rear of the housing assembly 100.

[0105] like Figure 2 As shown, the present disclosure can be provided with two running wheels 500, which are respectively located approximately in the middle of the front-to-back direction of the housing assembly 100 and on both sides of the left-to-right direction of the housing assembly 100; furthermore, the steering wheel 400 is provided as one, which can be a universal wheel, and accordingly, the universal wheel is provided in the middle of the left-to-right direction of the surface cleaning device and close to the front end of the surface cleaning device. Of course, the present disclosure can also be provided with two or more steering wheels 400.

[0106] In actual use, the travel wheel 500 can be driven and rotated, and by controlling the travel wheel 500 to rotate at a constant speed, the surface cleaning device can move forward. Correspondingly, by controlling the travel wheel 500 to rotate at an uneven speed, the surface cleaning device can be controlled to turn.

[0107] In the present disclosure, a side brush assembly 200 is further provided on the housing assembly 100, wherein the side brush assembly 200 can be provided as one or two; Figure 2 In the illustrated embodiment, the side brush assembly 200 is provided as a single unit and is disposed on the right side of the front end of the housing assembly 100. Thus, the rotation of the side brush assembly 200 can disturb dirt on the surface to be cleaned and clean the surface to be cleaned. In this disclosure, the side brush assembly 200 may also be referred to as a side brush assembly.

[0108] In addition, the housing assembly 100 is also provided with a cleaning assembly 300, which is arranged in the middle position of the housing assembly 100 in the front-to-back direction, and its length direction is the width direction of the housing assembly 100. More specifically, the cleaning assembly 300 may include a stirring member 310 and a self-cleaner 320; wherein, the stirring member 310 may be formed in the form of a roller brush, which may include a plurality of extended bristles. Moreover, the stirring member 310 can be driven by a cleaning drive device so as to be able to rotate around the transverse axis of the stirring member 310; wherein, the transverse direction is the left-right direction, and the transverse axis is the central axis or rotation axis of the stirring member 310, and the transverse axis is a straight line parallel to the surface to be cleaned.

[0109] In a specific embodiment, both ends of the stirring member 310 can be pivotally mounted on the shell assembly 100, and the shell assembly 100 has an opening facing the surface to be cleaned, the stirring member 310 is arranged at the opening, and at least part of the stirring member 310 extends below the opening of the shell assembly 100, whereby when the stirring member 310 is driven to rotate, its bristles can come into frictional contact with the surface to be cleaned, thereby disturbing the dirt and dust on the surface to be cleaned and achieving cleaning of the surface to be cleaned.

[0110] In addition, the shell assembly 100 of the present disclosure includes a vacuum suction port, which can be provided with vacuum suction (negative pressure) to suck the gas containing dirt and dust into the dust box assembly, and after the dirt and dust are separated by the dust box assembly, the dirt and dust are kept in the dust box, and the separated gas is discharged to the outside of the surface cleaning device.

[0111] In a preferred embodiment, at least a portion of the vacuum suction port is located below the fixing member 322 , so that the dirt cleaned by the fixing member 322 will also be sucked by the vacuum suction port.

[0112] The self-cleaner 320 of the present disclosure is installed close to the stirring member 310 and is used to clean the stirring member 310. The structure of the self-cleaner 320 will be described in detail below.

[0113] In a preferred embodiment, the housing assembly 100 is further provided with a cleaning assembly 600. In the present disclosure, the cleaning assembly 600 is rotatably connected to the housing assembly 100 and is configured to clean the surface to be cleaned. Specifically, the cleaning assembly 600 may be a cleaning disc that rotates on the surface to be cleaned, a roller that rolls relative to the surface to be cleaned, or other forms of cleaning assembly 600.

[0114] like Figure 2 As shown, the cleaning assembly 600 is a cleaning disc, which includes a cleaning surface made of flannel; the rotation axis of the cleaning disc is perpendicular to the surface to be cleaned, that is, the cleaning disc is connected to the housing assembly 100 via a rotating shaft perpendicular to the surface to be cleaned. Since the cleaning disc rotates relative to the bottom wall of the housing assembly 100, in order to avoid interference with the rotation of the cleaning disc by the bottom wall of the housing assembly 100, a certain gap needs to be formed between the cleaning disc and the bottom wall of the housing assembly 100. Furthermore, the distance between the cleaning assembly 600 of the present disclosure and the bottom wall of the housing assembly 100 can be adjusted; that is, the rotating shaft of the present disclosure can be driven to move in the up and down directions, and accordingly, the cleaning disc can also move in the up and down directions, thereby adjusting the pressure of the cleaning disc on the surface to be cleaned through the up and down movement of the cleaning disc.

[0115] like Figure 2As shown, the present invention provides two cleaning discs, which are respectively arranged on the left and right sides of the rear end of the shell assembly 100. In one embodiment, the two cleaning discs can contact with pressure when rotating, so as to achieve wet mopping of the surface to be cleaned, thereby achieving wet cleaning of the surface to be cleaned. Accordingly, during the cleaning process of the surface to be cleaned, in the left and right directions, since there is no gap or the gap is small between the cleaning discs, there will be no areas that are missed from cleaning.

[0116] Since the cleaning component 300 is located in front of the cleaning component 600 , the surface cleaning device of the present disclosure can use the cleaning component 600 to clean the surface to be cleaned after the cleaning component 300 has cleaned the surface to be cleaned.

[0117] Thus, when the surface cleaning device of the present disclosure is in operation, the cleaning assembly 600 of the surface cleaning device can be self-cleaned according to its operating time; more preferably, the operating time can be set to be different according to the degree of dirtiness of the ground. For example, when the degree of dirtiness of the ground is relatively high, the operating time can be set to be relatively short; correspondingly, when the degree of dirtiness of the ground is relatively low, the operating time can be set to be relatively long.

[0118] At the same time, after the surface cleaning device completes the cleaning operation for a predetermined time, it can automatically return to and dock at the base station, and the base station can perform self-cleaning on the cleaning component 600 of the surface cleaning device.

[0119] Figure 3 Schematic diagram of the structure of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure. Figure 4 2 is a schematic structural diagram of a side brush assembly of a surface cleaning device according to an embodiment of the present disclosure (retracted state). Figure 5 1 is a partial structural schematic diagram of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (retracted state). Figure 6 Schematic diagram of the connection relationship of gears of a surface cleaning device according to one embodiment of the present disclosure. Figure 7 1 is a schematic structural diagram of a side brush assembly of a surface cleaning device according to an embodiment of the present disclosure (in an expanded state). Figure 8 1 is a partial structural schematic diagram of a side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (in an expanded state).

[0120] As he 3 to Figure 8 As shown, in the present disclosure, the side brush assembly 200 of the present disclosure may include components such as a base 210 , a brush arm 220 , a cleaning brush 230 , a power component 240 , a rocker assembly 250 and a power motor 260 .

[0121] like Figure 3As shown, the base 210 can be disposed on the housing assembly 100. In a preferred embodiment, the base 210 is formed separately from the housing assembly 100 and is fixed to the housing assembly 100. In another embodiment, the base 210 can be integrally formed with the housing assembly 100, that is, in this case, the brush arm 220 can be directly mounted on the housing assembly 100.

[0122] like Figure 6 and Figure 8 As shown, the base 210 of the present disclosure may include a stopper 211 formed as an arm of the base 210 ; when the rocker assembly 250 interacts with the base 210 , the rocker assembly 250 cooperates with and comes into pressure contact with the stopper 211 of the base 210 .

[0123] The brush arm 220 is pivotally connected to the base 210 via the pivot shaft 270. In other words, the brush arm 220 of the present disclosure is rotatably connected to the base 210, and the rotation axis of the brush arm 220 relative to the base 210 is the centerline of the pivot shaft 270. In a preferred embodiment, the centerline of the pivot shaft 270 is disposed substantially vertically. Thus, when the surface cleaning device of the present disclosure is in use, the centerline of the pivot shaft 270 can be disposed substantially vertically and perpendicular to the substantially horizontal surface to be cleaned.

[0124] The cleaning brush 230 is used to remove debris from the surface to be cleaned. The cleaning brush 230 is rotatably mounted on the brush arm 220. Specifically, the rotation axis of the cleaning brush 230 relative to the brush arm 220 is substantially parallel to the centerline of the pivot shaft 270. In other words, when the surface cleaning apparatus is cleaning the surface to be cleaned, the rotation axis of the cleaning brush 230 is substantially perpendicular to the surface to be cleaned, thereby providing the cleaning brush 230 with a larger cleaning area.

[0125] In the present disclosure, when the brush arm 220 rotates relative to the base 210 , it has a first position and a second position; in the first position, the brush arm 220 is close to the base 210 ; in the second position, the brush arm 220 is away from the base 210 .

[0126] That is to say, in the present disclosure, the first position can also be referred to as the retracted position, at this time, the cleaning brush 230 is in the retracted state, and accordingly, the brush arm 220 can be stored inside the shell assembly 100; the second position can also be referred to as the outward-expanded position, at this time, the cleaning brush 230 is in the outward-expanded state, and accordingly, the end of the brush arm 220 away from the base 210 can be located outside the shell assembly 100.

[0127] Therefore, in the side brush assembly 200 of the present invention, the provision of the pivotable brush arm 220 can further increase the cleaning area and the cleanable area, especially enabling the cleaning of locations such as slits and corners; and by controlling the rotation of the brush arm 220, the side brush assembly 200 of the present invention can be more reliably controlled.

[0128] Specifically, whether in the retracted state or the expanded state, at least a portion of the cleaning brush 230 can extend beyond the outer periphery of the surface cleaning device, and the rotation direction of the cleaning brush 230 is set to be able to sweep particles outside the outer periphery of the surface cleaning device toward the cleaning assembly 300 on the lower side of the surface cleaning device. Figure 2 In the example shown, when the surface cleaning device is cleaning the surface to be cleaned, the cleaning brush 230 rotates counterclockwise when viewed from top to bottom.

[0129] For example, the cleaning brush 230 sweeps debris toward an area in front of the surface cleaning apparatus or sweeps debris into the projected cleaning path of the surface cleaning apparatus. During the obstacle following action, the cleaning brush 230 sweeps debris along the obstacle as the surface cleaning apparatus travels along the perimeter of the obstacle and the sides of the surface cleaning apparatus track the obstacle. The cleaning brush 230 is positioned near the sides of the front end of the surface cleaning apparatus, with at least a portion extending beyond the sides of the surface cleaning apparatus so that the cleaning brush 230 can access particles located along the obstacle and in corners defined by the obstacle.

[0130] The arrangement of the cleaning brush 230 relative to the sweeping assembly 300 and the cleaning assembly 600 of the surface cleaning apparatus is Figure 2 2 (bottom view). The width of the sweeping assembly 300 and the rotational cleaning amplitude of the cleaning assembly 600 define the cleaning width of the surface cleaning device. During autonomous cleaning operation, the sweeping assembly 300 is rotated to direct particles beneath the surface cleaning device into the dust bin of the surface cleaning device, and the cleaning brush 230 is rotated to propel particles toward the sweeping assembly 300. The cleaning brush 230 enables the surface cleaning device to ingest particles outside the cleaning range of the sweeping assembly 300 of the surface cleaning device, sweeping the projected cleaning path of particles into the cleaning width of the surface cleaning device.

[0131] The cleaning brush 230 can rotate to sweep the surface to be cleaned and push the debris toward the cleaning assembly 300. The cleaning brush 230 rotates around the rotation axis. In some embodiments, the cleaning brush 230 rotates around an axis that forms an angle of less than 90 degrees with the surface to be cleaned.

[0132] The brush arm 220 of the present disclosure is arranged approximately horizontally, whereby the brush arm 220 is not only used to support the rotation of the cleaning brush 230, but also used to drive the cleaning brush 230 to move in a given direction (for example, the brush arm 220 can drive the cleaning brush 230 to move in a substantially horizontal plane), thereby enabling the cleaning brush 230 to move between an inward position and an outward position. Accordingly, when the cleaning brush 230 is in the outward position, the debris removal range of the cleaning brush 230 can be increased.

[0133] In one embodiment, the brush arm 220 of the present disclosure may include a base portion 221 and a cover portion 222; accordingly, an accommodating space is formed between the base portion 221 and the cover portion 222, and a plurality of gears are arranged in the accommodating space; that is, the brush arm 220 of the present disclosure may be formed as a gear box as a whole.

[0134] In this disclosure, Figure 4 As shown, the cover body 222 is provided with a protrusion 223, and a motor fixing seat is formed by the protrusion 223, in which a power motor 260 is installed; in a preferred embodiment, the rotation axis of the output shaft of the power motor 260 is arranged approximately vertically.

[0135] The upper end of the protrusion 223 extends outward to form a boss portion 224, and the upper end of the pivot shaft 270 is fixed to the boss portion 224. For example, the boss portion 224 has a mounting hole, and the pivot shaft 270 is inserted into the mounting hole, so that the pivot shaft 270 and the inner wall of the mounting hole have an interference fit, thereby securing the pivot shaft 270 and the boss portion 224 together. Of course, the pivot shaft 270 of the present disclosure can also be secured to the boss portion 224 by gluing or other methods.

[0136] The lower end of the pivot shaft 270 can be fixed to the cover 222; for example, the cover 222 has a mounting hole, into which the pivot shaft 270 is inserted, and the pivot shaft 270 forms an interference fit with the inner wall of the mounting hole, thereby securing the pivot shaft 270 to the cover 222. Of course, the pivot shaft 270 of the present disclosure can also be secured to the cover 222 by gluing or other methods.

[0137] Of course, both ends of the pivot shaft 270 of the present disclosure may also be rotatably disposed in the two mounting holes.

[0138] At least a portion of the base 210 is rotatably disposed on the pivot shaft 270 and is located between the boss portion 224 and the cover portion 222 , thereby enabling the brush arm 220 to stably pivot relative to the base 210 .

[0139] In the present disclosure, the power component 240 connects the base 210 and the brush arm 220 to provide a pivoting force between the base 210 and the brush arm 220. In a preferred embodiment, the power component 240 is an elastic component, specifically, a torsion spring. The elastic component connects the base 210 and the brush arm 220 to provide an elastic pivoting force between the base 210 and the brush arm 220.

[0140] Accordingly, the pivoting force provided by the power component 240 can cause the brush arm 220 to move toward the second position relative to the base 210 .

[0141] That is, when the brush arm 220 is in a free state, the pivoting force provided by the power component 240 can enable the brush arm 220 to move from the first position to the second position.

[0142] In a preferred embodiment, the side brush assembly (or surface cleaning device) of the present disclosure may further include a sensor for detecting the relative position of the brush arm 220 and the base 210. In one embodiment, the sensor may be a rotary encoder, thereby enabling the relative position of the brush arm 220 and the base 210 to be determined by the rotary encoder. In another embodiment, the sensor may be a travel switch. For example, multiple travel switches may be provided. When the brush arm 220 is in different positions, different travel switches can be triggered, thereby determining the position of the brush arm 220 based on the position of the triggered travel switch.

[0143] The rocker assembly 250 of the present disclosure is disposed on the brush arm 220 , wherein the rocker assembly 250 is controlled so that the rocker assembly 250 can periodically release or overcome the pivoting force to change the relative position of the brush arm 220 and the base 210 .

[0144] In other words, the rocker assembly 250 of the present disclosure can periodically release or overcome the pivoting force according to the driving force signal to change the relative position of the brush arm 220 and the base 210. The driving force signal is a steering signal of the output shaft of the power motor 260.

[0145] In the present disclosure, the power motor 260 is used to drive the cleaning brush 230 to rotate; wherein, the power motor 260 is also used to provide driving force for the rocker assembly 250, so that the rocker assembly 250 can periodically release or overcome the pivoting force.

[0146] Specifically, if Figure 6As shown, when viewed from top to bottom, when the power motor 260 rotates in a first direction (e.g., clockwise), the power motor 260 drives the cleaning brush 230 to rotate without providing driving force to the rocker assembly 250. At this time, the power motor 260 drives the driving gear 201 to rotate, which in turn drives the first coaxial gear 202. The large gear of the first coaxial gear 202 meshes with the driving gear 201 and transmits the power. Furthermore, the first coaxial gear 202 has a greater number of teeth than the driving gear 201, creating a reduction gear between the driving gear 201 and the first coaxial gear 202. The first coaxial gear 202 rotates counterclockwise.

[0147] The small gear of the first coaxial gear 202 drives the idler gear 203 to rotate; moreover, the idler gear 203 is used to drive the second coaxial gear 204 to rotate; wherein, the gear shaft of the second coaxial gear 204 is rotatably provided on the brush arm 220, and is fixedly connected to the cleaning brush 230, thereby, when the second coaxial gear 204 rotates, the cleaning brush 230 can rotate at the same speed as the second coaxial gear 204; accordingly, the cleaning brush 230 can also rotate counterclockwise and realize the cleaning operation of the cleaning surface.

[0148] In addition, when the power motor 260 rotates in the second direction, the power motor 260 is used to provide driving force to the rocker assembly 250 .

[0149] Specifically, refer to Figure 6 When the power motor 260 rotates in the second direction (the second direction is the opposite direction of the first direction, i.e., counterclockwise); at this time, the second coaxial gear 204 will rotate clockwise; accordingly, the large gear of the second coaxial gear 204 engages with the idler gear; the small gear of the second coaxial gear 204 will drive the driven gear 205 to rotate, and at this time, the driven gear 205 will have the same rotation direction as the power motor 260.

[0150] The driven gear 205 is connected to the rotating shaft portion 207 through a one-way bearing 206 (overrunning clutch); specifically, the rotating shaft portion 207 of the present disclosure can be rotatably arranged on the brush arm 220, and the one-way bearing 206 is configured so that: when the driven gear 205 rotates in the counterclockwise direction, the rotating shaft portion 207 is driven to rotate; when the driven gear 205 rotates in the clockwise direction, the rotating shaft portion 207 is not driven to rotate.

[0151] Of course, those skilled in the art should know that when there are gears of different levels between the power motor 260 and the driven gear 205, the power motor 260 and the driven gear 205 may also have different rotation directions. At this time, the configuration of the one-way bearing 206 can separate and combine different rotation directions according to actual needs.

[0152] Through the above structure, the side brush assembly 200 of the present disclosure can realize driving and outward extension movement of the cleaning brush 230 through different rotation directions of the same power motor 260, and keep the cleaning brush 230 able to rotate to clean the floor.

[0153] Refer again Figure 5 The brush arm 220 has a first stroke and a second stroke opposite to the first stroke. In the first stroke, the rocker assembly 250 periodically releases the pivot force to move the brush arm 220 from the first position to the second position; at the same time, in the second stroke, the rocker assembly 250 periodically overcomes the pivot force to move the brush arm 220 from the second position to the first position.

[0154] Specifically, in a direction of looking down at the side brush assembly 200 , the first stroke is a counterclockwise rotation process of the brush arm 220 around the pivot shaft 270 ; conversely, the second stroke is a clockwise rotation process of the brush arm 220 around the pivot shaft 270 .

[0155] The structure of the rocker assembly 250 will be described in detail below.

[0156] Figure 9 It is a structural schematic diagram of an eccentric wheel according to one embodiment of the present disclosure.

[0157] like Figure 5 and Figure 8 As shown, the rocker assembly 250 of the present disclosure includes an eccentric wheel 251 and a rocker component 252; wherein the eccentric wheel 251 can be fixed on the rotating shaft portion 207 and rotate together with the rotating shaft portion 207; in another embodiment, when the rotating shaft portion 207 is fixed to the brush arm 220, the inner ring of the one-way bearing 206 is configured to be able to rotate relative to the rotating shaft portion 207, and at this time the eccentric wheel 251 is fixed to the inner ring of the one-way bearing 206 and can rotate relative to the rotating shaft portion 207.

[0158] That is to say, in the present disclosure, it is only necessary to keep the inner ring of the one-way bearing 206 and the eccentric wheel 251 fixed together and able to rotate together. Correspondingly, the outer ring of the one-way bearing 206 is fixedly connected to the driven gear 205.

[0159] Accordingly, the eccentric wheel 251 of the present invention is driven by the power motor 260 to rotate; the rocker component 252 is located between the eccentric wheel 251 and the base 210. Under the action of the eccentric wheel 251, the rocker component 252 provides interaction to the base 210, which includes resisting the base 210 or periodically releasing the resistance to the base 210.

[0160] That is, the eccentric wheel 251 of the present disclosure has a rotation axis and a geometric center, and the rotation axis and the geometric center do not coincide with each other. Moreover, the outer peripheral surface of the eccentric wheel 251 of the present disclosure has a first portion and a second portion; wherein the first portion of the outer peripheral surface is a surface with a smaller distance from the rotation axis; and the second portion of the outer peripheral surface is a surface with a larger distance from the rotation axis; Figure 9 As shown, a limiting plane 251A is formed on the second portion of the outer circumference of the present invention, and the limiting plane 251A is perpendicular to the plane where the rotation axis and the geometric center are located.

[0161] Figure 10 2 is a schematic structural diagram of a rocker component according to an embodiment of the present disclosure.

[0162] like Figure 10 As shown, the rocker component 252 of the present disclosure includes a first arm 252A and a second arm 252B, which are respectively located on both sides of a fulcrum 252C. The first arm 252A is used to interact with the eccentric wheel 251 , and the second arm 252B is used to interact with the base 210 .

[0163] Specifically, Figure 5 The retracted state shown is the initial state, and the power motor 260 maintains a clockwise rotation state to drive the cleaning brush 230 to rotate counterclockwise to pick up particles on the surface to be cleaned. If the surface cleaning device detects an obstacle adjacent to the side of the surface cleaning device, the power motor 260 switches its output direction. At this time, the power motor 260 rotates clockwise, causing the eccentric wheel 251 to rotate clockwise. The distance between the rotation axis of the eccentric wheel 251 and the first arm 252A of the rocker component 252 will gradually decrease, and accordingly, the rocker component 252 will be allowed to rotate counterclockwise. At this time, under the action of the pivoting force, the brush arm 220 will rotate counterclockwise about the pivot axis 270, and the stopper 211 of the base 210 will move the rocker component 252 to rotate counterclockwise, causing the first arm 252A of the rocker component 252 to maintain pressure contact with the outer periphery of the eccentric wheel 251.

[0164] That is, due to the rotation of the eccentric 251, the distance between the rotation axis of the eccentric 251 and the first arm 252A is reduced to release the interference of the second arm 252B with the base to release the pivot force. Accordingly, the brush arm 220 is in the first stroke and gradually expands outward.

[0165] The brush arm 220 is in the second position. Figure 7 and Figure 8 shown.

[0166] exist Figure 7 and Figure 8In the state shown, the power motor 260 switches its rotation direction, that is, the power motor 260 rotates in a clockwise direction to drive the cleaning brush 230 to rotate counterclockwise to pick up particles on the surface to be cleaned near the obstacle.

[0167] When the surface cleaning device detects that the obstacle has moved away from the side of the surface cleaning device, the power motor 260 switches the output direction. At this time, the power motor 260 will rotate counterclockwise and cause the eccentric wheel 251 to rotate counterclockwise. The distance between the rotation axis of the eccentric wheel 251 and the first arm 252A of the rocker component 252 will gradually increase. Accordingly, the rocker component 252 will rotate clockwise under the drive of the eccentric wheel 251; at this time, the second arm 252B of the rocker component 252 will be in pressure contact with the stop portion 211 of the base 210, and cause the brush arm 220 to rotate clockwise around the pivot shaft 270. As a result, the driving force provided by the rocker component 252 will overcome the pivot force. Accordingly, the brush arm 220 will be in the second stroke and move from the second position to the first position.

[0168] On the other hand, Figure 5 In the state, when the power motor 260 rotates clockwise and makes the brush arm 220 Figure 8 After the state shown, if the power motor 260 does not switch its rotation direction but continues to rotate clockwise, the brush arm 220 will move from the second position to the first position. Therefore, after the sensor detects that the brush arm 220 is in the second position, the controller will control the power motor 260 to reverse, so that the eccentric wheel 251 stops rotating and the position of the rocker component 252 is fixed, and the cleaning brush 230 is in the cleaning state.

[0169] Refer again Figure 9 In the present disclosure, the rocker member 252 forms a clearance portion 252D for circumventing the eccentric 251. During the first and second strokes, the clearance portion 252D provides rotational clearance for the eccentric 251. More specifically, the clearance portion 252D is located near the fulcrum 252C and formed between the first arm 252A and the second arm 252B. Furthermore, the clearance portion 252D has an inner diameter that is no smaller than the outer diameter of the eccentric 251.

[0170] That is, due to the provision of the avoidance portion 252D, the eccentric wheel 251 will not touch the second arm 252B during the rotation process. Accordingly, the rocker assembly 250 of the present disclosure is easier to control.

[0171] In a preferred embodiment, the first arm 252A includes a straight portion, which is tangent to the avoidance portion 252D, so that the contact point between the eccentric wheel 251 and the first arm 252A smoothly transitions from the straight portion to the avoidance portion 252D.

[0172] In the present disclosure, when the brush arm 220 is in the first position, the limiting plane 251A of the eccentric wheel 251 can contact the straight portion of the first arm 252A, thereby the eccentric wheel 251 can stably maintain the brush arm 220 in the first position.

[0173] Therefore, in the first stroke, no or small resistance force is generated between the straight portion and the eccentric wheel 251 , and in the second stroke, a resistance force or a large resistance force is generated between the straight portion and the eccentric wheel 251 .

[0174] On the other hand, the second arm 252B includes a curved portion, which is tangent to the escape portion 252D, so that the contact point between the eccentric wheel 251 and the second arm 252B smoothly transitions from the curved portion to the escape portion 252D.

[0175] Thus, the side brush assembly 200 of the present disclosure can achieve both sweeping and expansion-retraction drive of the cleaning brush 230 using the same power motor 260. Furthermore, the side brush assembly 200 can be removably mounted as a unit to the housing assembly 100 of the surface cleaning device. The brush arm 220 and base 210 can be mounted to and removed from the housing assembly 100 as a single unit, making maintenance of the side brush assembly 200 easier. Furthermore, the brush arm 220 is movable relative to the housing assembly 100 of the surface cleaning device, allowing the brush arm 220 to move in response to contact with obstacles along the floor surface on which the surface cleaning device is moving or in response to changes in the floor type. If the cleaning brush 230 is positioned on the brush arm 220, contact between the cleaning brush 230 and an obstacle on the floor surface can also cause the brush arm 220 to move. This effectively increases the cleaning area.

[0176] During the obstacle following behavior, the surface cleaning device travels near the perimeter of the obstacle so that the side is positioned adjacent to the perimeter. By being positioned close to the side, the cleaning brush 230 is positioned to contact debris along the perimeter of the obstacle during the obstacle following behavior. For example, on the side of the obstacle, the brush arm 220 changes position so that the cleaning brush 230 can approach the tracking object or wall.

[0177] Figure 11 It is a structural schematic diagram of a cleaning component according to one embodiment of the present disclosure. Figure 12 2 is a schematic structural diagram of a rotating member according to an embodiment of the present disclosure. Figure 13 Schematic diagram of the structure of a fixing member according to one embodiment of the present disclosure.

[0178] like Figures 11 to 13As shown, in the present disclosure, the self-cleaner 320 includes a rotating member 321 and a fixed member 322. The rotating member 321 is pivotally mounted on the housing assembly 100 at both ends, thereby enabling the rotating member 321 to rotate when driven by a drive device such as a motor. The fixed member 322 can be fixed to the housing assembly 100 so that it can maintain a predetermined posture relative to the housing assembly 100.

[0179] like Figure 12 As shown, the rotating member 321 includes an elongated member 321A and first comb teeth 321B. Specifically, the elongated member 321A is generally cylindrical, and its two ends are rotatably mounted on the housing assembly 100, such that the elongated member 321A extends along the transverse axis of the stirring member 310. In other words, in the present disclosure, the rotation axis of the elongated member 321A is parallel or substantially parallel to the rotation axis of the stirring member 310.

[0180] The first comb teeth 321B are connected to the elongated member 321A. In a preferred embodiment, the first comb teeth 321B and the elongated member 321A are integrally formed. Accordingly, the first comb teeth 321B can rotate together with the elongated member 321A. In other words, when the rotating member 321 of the present disclosure is driven, it can rotate as a whole along the central axis (rotation axis) of the elongated member 321A.

[0181] In one embodiment, the first comb teeth 321B are arranged in at least one row; wherein, Figure 12 The rotating member 321 shown includes a row of first comb teeth 321B; of course, the first comb teeth 321B of the present disclosure can be arranged in multiple rows, and when the first comb teeth 321B are arranged in multiple rows, the multiple rows of first comb teeth 321B can be distributed along the circumferential direction of the slender member 321A.

[0182] At least one row of first comb teeth 321B extends along a predetermined path on the elongated member 321A. Preferably, the path is a spiral path. Furthermore, the spiral path extends along the surface of the elongated member 321A from the first end of the elongated member 321A to the second end of the elongated member 321A. Thus, the first comb teeth 321B of the present disclosure can be spirally wound around the elongated member 321A at least once in the circumferential direction of the elongated member 321A.

[0183] In the present disclosure, when the cleaning assembly 300 of the present disclosure is installed on the shell assembly 100, the transverse axis of the slender part 321A is located behind the transverse axis of the stirring member 310, so that the self-cleaner 320 of the present disclosure can clean the stirring member 310 from behind the stirring member 310, preventing the surface to be cleaned from being contaminated again.

[0184] In a specific embodiment, the first comb teeth 321B include a plurality of sheet-like members extending from the elongated member 321A, with gaps between the sheet-like members. The edges of the first comb teeth 321B are the free ends of the sheet-like members. In a preferred embodiment, the sheet-like members have a thickness, and the distance between two adjacent sheet-like members is approximately the same as the thickness of the sheet-like members. In other words, the size of the gaps in the transverse direction is approximately the same as the thickness of the sheet-like members.

[0185] like Figure 13 As shown, the fixing member 322 of the present disclosure may include a base 322A and second comb teeth 322B. The base 322A can be fixed to the housing assembly 100. In a preferred embodiment, the base 322A is generally a plate-shaped structure, and its length direction is parallel or approximately parallel to the transverse direction. In other words, the transverse direction of the fixing member 322 of the present disclosure (i.e., the length direction of the fixing member 322) is parallel or approximately parallel to the transverse direction (transverse axis) of the stirring member 310.

[0186] The second comb teeth 322B and the base 322A may be integrally formed. In a preferred embodiment, the upper ends of the second comb teeth 322B are connected to the base 322A, and the lower ends of the second comb teeth 322B are formed as free ends.

[0187] In a preferred embodiment, the second comb teeth 322B include a plurality of sheet-like components extending from the base 322A of the fixing member 322. Similar to the structure of the first comb teeth 321B, the sheet-like components of the second comb teeth 322B have a thickness, a preset distance is spaced between two adjacent sheet-like components, and the sum of the thickness of the sheet-like components of the second comb teeth 322B and the preset distance is the same as the sum of the thickness of the sheet-like components of the first comb teeth 321B and the distance between the sheet-like components.

[0188] More preferably, in the second comb teeth 322B, the thickness of the sheet-like member is smaller than (slightly smaller than) a preset distance between the two sheet-like members.

[0189] A clearance area is formed between the multiple sheet-like components of the second comb teeth 322B and the base 322A. Specifically, the clearance area disclosed herein can be connected to the gap between two sheet-like components of the second comb teeth 322B. In a preferred embodiment, the sheet-like components of the first comb teeth 321B and the sheet-like components of the second comb teeth 322B have approximately the same thickness, so that the first comb teeth 321B can cross and pass through the second comb teeth 322B.

[0190] At the same time, during the meshing process between the first comb teeth 321B and the second comb teeth 322B, the edge of the first comb teeth 321B can pass through the avoidance area.

[0191] In other words, when the rotating member 321 is rotating, at least a portion of the edge of at least one row of first comb teeth 321B interferes with the bristles; then, the first comb teeth 321B can engage with the second comb teeth 322B, and the slender member is configured to be able to transmit force, that is, it can be driven and rotated to rotate the edge of the first comb teeth 321B from a first position interfering with the bristles to a second position engaging with the second comb teeth 322B, so as to remove debris or hair attached to the stirring member 310 when the stirring member 310 rotates.

[0192] At the same time, due to the setting of the spirally wound first comb teeth 321B, on the one hand, the first comb teeth 321B can pass through the second comb teeth 322B one by one, preventing the rotating part 321 from being stuck; on the other hand, considering the spiral arrangement of the bristles, the first comb teeth 321B set in this way will not impact and damage the bristles, thereby improving the service life of the stirring part.

[0193] In a specific embodiment, the avoidance area includes a avoidance surface having an arc-shaped cross-section. In other words, the avoidance surface is formed into an arc-shaped surface. Thus, the arrangement of the arc-shaped surface allows the edge of the first comb tooth 321B to maintain a constant distance from the avoidance area when rotating through the avoidance area, thereby preventing the avoidance area from being contaminated by dirt that is difficult to clean.

[0194] Preferably, during the engagement of the first comb teeth 321B and the second comb teeth 322B, the distance between the edges of the plurality of sheet-like components of the first comb teeth 321B and the avoidance area is no less than 0.5 mm. In other words, the distance between the edges of the first comb teeth 321B and the bottom of the avoidance area is no less than 0.5 mm, thereby effectively preventing interference between the rotating component and the fixed component.

[0195] In a preferred embodiment, the free ends of the plurality of sheet-like components of the second comb teeth 322B face the stirring member 310 , so that the second comb teeth 322B can conveniently remove the dirt on the stirring member 310 removed by the first comb teeth 321B from the first comb teeth 321B.

[0196] In the present disclosure, when the surface cleaning device performs a cleaning operation, the elongated member 321A rotates in the same direction as the agitating member 310 . Furthermore, the rotation speed of the elongated member 321A is lower than the rotation speed of the agitating member 310 .

[0197] In another embodiment of the present disclosure, the cleaning assembly of the present disclosure can also be applied to a handheld vacuum cleaner and formed as part of the cleaning head of the handheld vacuum cleaner. Specifically, the cleaning head of the handheld vacuum cleaner of the present disclosure may include a housing assembly and a stirring member. The housing assembly includes a vacuum suction port to provide vacuum suction through the vacuum suction port.

[0198] The difference from the above embodiment is that the shape of the housing assembly of the cleaning head of the handheld vacuum cleaner is different from that of the housing assembly of the autonomous mobile surface cleaning robot. The connection method of the agitator and the self-cleaning device to the housing assembly is the same as that of the above embodiment and will not be repeated here.

[0199] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0200] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0201] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A self-cleaning device, characterized in that: include: an elongated member configured to rotate in a lateral direction when driven by an external power source; first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

2. The self-cleaning device according to claim 1, characterized in that At least one row of first comb teeth extends along a predetermined path on the elongated member.

3. The self-cleaning device according to claim 2, characterized in that: The path is a spiral path.

4. The self-cleaning device according to claim 3, characterized in that: The helical path extends along the surface of the elongated member from a location at the first end of the elongated member to a location at the second end of the elongated member.

5. The self-cleaning device according to claim 1, characterized in that The first comb teeth include a plurality of plate-like members extending from an elongated member, and the edges are free ends of the plate-like members.

6. The self-cleaner according to claim 1, characterized in that The second comb teeth include a plurality of plate-like members extending from a base.

7. The self-cleaning device according to claim 6, characterized in that: An escape area is formed between the plurality of plate-like components of the second comb teeth and the base portion.

8. The self-cleaning device according to claim 7, characterized in that: During the meshing process between the first comb teeth and the second comb teeth, the edge of the first comb teeth can pass through the avoidance area.

9. The self-cleaning device according to claim 8, characterized in that: The avoidance area includes a avoidance surface, and the cross section of the avoidance surface is an arc shape.

10. The self-cleaning device according to claim 9, characterized in that During the meshing process between the first comb teeth and the second comb teeth, the distance between the edges of the plurality of sheet-like components of the first comb teeth and the avoidance area is not less than 0.5 mm.

11. An autonomous mobile surface cleaning robot, the autonomous mobile surface cleaning robot being configured to be able to move on a surface to be cleaned; characterized in that, include: housing assembly; a stirring member mounted on the housing assembly, the stirring member including a plurality of extending bristles and capable of rotating about a transverse axis of the stirring member; as well as A self-cleaner is installed near the stirring member and is used to clean the stirring member. The self-cleaner includes: an elongated member configured to rotate in a lateral direction when driven by an external power source; first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

12. The autonomous mobile surface cleaning robot according to claim 11, wherein: The housing assembly has an opening facing the surface to be cleaned, the stirring member is arranged at the opening, and at least a portion of the stirring member extends below the opening of the housing assembly.

13. The autonomous mobile surface cleaning robot according to claim 12, wherein: The housing assembly includes a vacuum suction port, at least a portion of which is located below the fixing member.

14. A cleaning head for a handheld vacuum cleaner, characterized in that: include: a housing assembly, the housing assembly including a vacuum suction port to provide vacuum suction through the vacuum suction port; a stirring member mounted on the housing assembly, the stirring member including a plurality of extending bristles and capable of rotating about a transverse axis of the stirring member; as well as A self-cleaner is installed near the stirring member and is used to clean the stirring member. The self-cleaner includes: an elongated member configured to rotate in a lateral direction when driven by an external power source; first comb teeth, the first comb teeth being connected to the elongated member and rotating together with the elongated member; wherein the first comb teeth are arranged in at least one row, and the at least one row of first comb teeth has an edge in a radial direction of the elongated member; and and second comb teeth, the second comb teeth being arranged adjacent to the elongated member and extending in the transverse direction of the elongated member; wherein the second comb teeth are capable of engaging with the first comb teeth, and when the elongated member rotates, the edge of the first comb teeth rotates from a first position not engaging with the second comb teeth to a second position engaging with the second comb teeth.

15. The cleaning head of a handheld vacuum cleaner according to claim 14, characterized in that: The housing assembly has an opening facing the surface to be cleaned, the stirring member is arranged at the opening, and at least a portion of the stirring member extends below the opening of the housing assembly.

16. The cleaning head of a handheld vacuum cleaner according to claim 15, characterized in that: At least a portion of the vacuum suction port is located below the fixing member.

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