Cleaning assembly, autonomous mobile surface cleaning robot and cleaning head of handheld dust collector

Abstract

The invention provides a cleaning assembly, an autonomous mobile surface cleaning robot and a cleaning head of a handheld dust collector. The cleaning assembly comprises a stirring piece and a self-cleaning device. The self-cleaning device comprises a rotating piece and a fixed piece. The rotating piece comprises a slender part and first comb teeth; the slender part extends in the transverse axis direction of the stirring part, and 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; when the slender part rotates, at least one part of the edge of at least one row of first comb teeth interferes with the bristles; the fixing part comprises second comb teeth extending and arranged in the transverse direction of the fixing part, the first comb teeth can be meshed with the second comb teeth, and the long and thin part is configured to be driven and rotate, so that the edges of the first comb teeth rotate from a first position interfering with the bristles to a second position meshed with the second comb teeth; therefore, chippings or hair attached to the stirring piece can be cleared away when the stirring piece rotates.

Description

Technical Field

[0001] This disclosure relates to a cleaning assembly, an autonomous mobile surface cleaning robot, and a cleaning head for a handheld vacuum cleaner. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Household vacuum cleaning equipment is used to clean a room by sucking up particles such as dust from the floor.

[0004] Existing household vacuum cleaning devices may include a roller brush that agitates and collects debris from a floor surface. For example, in an example of a self-propelled mobile cleaning device, the roller brush may guide debris toward a vacuum airflow generated by the cleaning device, which in turn guides the debris into the dustbin of the cleaning device.

[0005] However, if there are long hairs or threads on the surface to be cleaned, the hairs or threads will get tangled on the roller brush as it rotates over the surface. This affects the cleaning effect of the roller brush, and it is also difficult to remove these hairs or threads from the roller brush when cleaning it. Summary of the Invention

[0006] To address one of the aforementioned technical problems, this disclosure provides a cleaning assembly, an autonomous mobile surface cleaning robot, and a cleaning head for a handheld vacuum cleaner.

[0007] According to one aspect of this disclosure, a cleaning assembly is provided, characterized in that it comprises: A stirring element comprising a plurality of extending bristles, and the stirring element being rotatable about a transverse axis of the stirring element; and A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated part and first comb teeth; the elongated part extends along the transverse axis of the stirring component, the first comb teeth are connected to the elongated part and rotate together with the elongated part; wherein the first comb teeth are arranged in at least one row; when the elongated part rotates, at least a portion of the edge of the at least one row of first comb teeth interferes with the bristles; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to be driven and rotated such that the edge of the first comb tooth rotates from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

[0008] According to at least one embodiment of the cleaning assembly of the present disclosure, the at least one row of first comb teeth extends along a predetermined path on an elongated member.

[0009] According to at least one embodiment of the cleaning assembly of this disclosure, the path is a spiral path.

[0010] According to at least one embodiment of the cleaning assembly of the present disclosure, the spiral path extends along the surface of the elongated member from a position at a first end of the elongated member to a position at a second end of the elongated member.

[0011] According to at least one embodiment of the cleaning assembly of this disclosure, the transverse axis of the elongated member is located behind the transverse axis of the agitator.

[0012] According to at least one embodiment of the cleaning assembly of the present disclosure, the first comb teeth include a plurality of sheet-like members extending from an elongated member, the edges being the free ends of the sheet-like members.

[0013] According to at least one embodiment of the cleaning assembly of the present disclosure, the second comb teeth include a plurality of sheet-like components extending from the base of the fixing member.

[0014] According to at least one embodiment of the cleaning assembly of the present disclosure, an avoidance area is formed between the plurality of plate-like components of the second comb teeth and the base.

[0015] According to at least one embodiment of the cleaning assembly of this disclosure, during the engagement of the first comb tooth and the second comb tooth, the edge of the first comb tooth can pass through the avoidance area.

[0016] According to at least one embodiment of the cleaning assembly of this disclosure, the avoidance area includes an avoidance surface, the cross-section of which is arc-shaped.

[0017] According to at least one embodiment of the cleaning assembly of this disclosure, during the engagement of the first comb tooth and the second comb tooth, the distance between the edges of the plurality of sheet-like components of the first comb tooth and the avoidance area is not less than 0.5 mm.

[0018] According to at least one embodiment of the cleaning assembly of the present disclosure, the free ends of a plurality of plate-like components of the second comb teeth face the agitator.

[0019] According to at least one embodiment of the cleaning assembly of this disclosure, when the cleaning assembly performs a cleaning operation, the elongated member rotates in the same direction as the agitator.

[0020] According to another aspect of this disclosure, an autonomous mobile surface cleaning robot is provided, the autonomous mobile surface cleaning robot being configured to move on a surface to be cleaned; the autonomous mobile surface cleaning robot includes: Housing assembly; A stirring element, mounted on the housing assembly, the stirring element comprising a plurality of extending bristles, and the stirring element being rotatable about a transverse axis of the stirring element; and A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated member and first comb teeth; the elongated member extends along the transverse axis of the stirring component and is pivotally connected to the housing assembly; the first comb teeth are connected to the elongated member and rotate together with the elongated member; wherein the first comb teeth are arranged in at least one row; at least a portion of the edges of the at least one row of first comb teeth interfere with the bristles when the elongated member rotates; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to transmit force to rotate the edge of the first comb tooth from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

[0021] According to at least one embodiment of the present disclosure, an autonomous mobile surface cleaning robot has a housing assembly having an opening toward the surface to be cleaned, an agitator disposed at the opening, and at least a portion of the agitator extending below the opening of the housing assembly.

[0022] According to at least one embodiment of the present disclosure, an autonomous mobile surface cleaning robot includes a housing assembly comprising a vacuum suction port, at least a portion of which is located below the fixture.

[0023] According to another aspect of this disclosure, a cleaning head for a handheld vacuum cleaner is provided, comprising: A housing assembly including a vacuum inlet for providing vacuum suction through the vacuum inlet; A stirring element, mounted on the housing assembly, the stirring element comprising a plurality of extending bristles, and the stirring element being rotatable about a transverse axis of the stirring element; and A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated member and first comb teeth; the elongated member extends along the transverse axis of the stirring component and is pivotally connected to the housing assembly; the first comb teeth are connected to the elongated member and rotate together with the elongated member; wherein the first comb teeth are arranged in at least one row; at least a portion of the edges of the at least one row of first comb teeth interfere with the bristles when the elongated member rotates; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to transmit force to rotate the edge of the first comb tooth from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

[0024] According to at least one embodiment of the present disclosure, the cleaning head of a handheld vacuum cleaner has a housing assembly having an opening toward the surface to be cleaned, an agitator disposed at the opening, and at least a portion of the agitator extending below the opening of the housing assembly.

[0025] According to at least one embodiment of the present disclosure, in the cleaning head of a handheld vacuum cleaner, at least a portion of the vacuum suction port is located below the fixing member. Attached Figure Description

[0026] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, 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.

[0027] Figure 1 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure.

[0028] Figure 2 This is a structural schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure from another angle.

[0029] Figure 3 This is a schematic diagram of the structure of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0030] Figure 4 This is a schematic diagram of the structure of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (inward retraction state).

[0031] Figure 5This is a partial structural diagram (inwardly retracted) of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0032] Figure 6 This is a schematic diagram of the gear connection relationship of a surface cleaning device according to one embodiment of the present disclosure.

[0033] Figure 7 This is a schematic diagram of the side brush assembly (outward expansion state) of a surface cleaning device according to one embodiment of the present disclosure.

[0034] Figure 8 This is a partial structural diagram (outward expansion state) of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0035] Figure 9 This is a schematic diagram of the structure of an eccentric wheel according to one embodiment of the present disclosure.

[0036] Figure 10 This is a schematic diagram of the structure of a rocker arm component according to one embodiment of the present disclosure.

[0037] Figure 11 This is a schematic diagram of the structure of a cleaning assembly according to one embodiment of the present disclosure.

[0038] Figure 12 This is a schematic diagram of the structure of a rotating component according to one embodiment of the present disclosure.

[0039] Figure 13 This is a structural schematic diagram of a fastener according to one embodiment of the present disclosure.

[0040] The specific labels in the attached figures are as follows: 100 Housing Assembly 200 Side Brush Components 201 Drive Gear 202 First coaxial gear 203 Idle Gear 204 Second coaxial gear 205 Driven Gear 206 One-way bearing 207 Rotating Shaft 210 matrix 211 Stop section 220 brush arm 221 Base section 222 Cover section 223 Protrusion 224 Bossed section 230 Cleaning Brush 240 Power Components 250 Joystick Assembly 251 Eccentric Wheel 251A Limiting Plane 252 Joystick Components 252A First Arm 252B Second Arm 252C pivot 252D Avoidance Section 260 power motor 270 Pivot axis 300 cleaning components 310 Mixing Components 320 Self-Cleaning Device 321 Rotating component 321A Slender component 321B First comb tooth 322 Fastener 322A base 322B Second Comb 400 steering wheel 500 walking wheels 600 Cleaning Components. Detailed Implementation

[0041] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0042] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0044] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0045] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0046] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0047] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0048] Figure 1 This is a schematic diagram of the structure of a surface cleaning device according to one embodiment of the present disclosure. Figure 2 This is a structural schematic diagram of a surface cleaning apparatus according to one embodiment of the present disclosure from another angle.

[0049] like Figure 1 and Figure 2 As shown, the surface cleaning device disclosed herein can be a self-moving surface cleaning device; as an example, the self-moving surface cleaning device can be a sweeping robot, a mopping robot, an autonomously moving surface cleaning robot, or a sweeping and mopping robot, etc. The self-moving surface cleaning device is capable of performing autonomous cleaning operations, that is, the surface cleaning device can move autonomously on the surface to be cleaned to clean the surface by absorbing particles located on different parts of the surface.

[0050] by Figure 1 and Figure 2 Taking the illustrated sweeping and mopping robot as an example, with the forward direction of the surface cleaning device denoted as "forward," refer to... Figure 2 In the view orientation, the forward direction of the surface cleaning equipment is upward to one side. The direction away from the forward direction of the surface cleaning equipment is backward, refer to... Figure 2 In the view direction, the rear of the surface cleaning equipment refers to the side below it. Correspondingly, the direction perpendicular to the front-back direction can be defined as the left-right direction.

[0051] The surface cleaning device may include a housing assembly 100, which can be formed as the body of the surface cleaning device. The bottom of the housing assembly 100 is provided with steering wheels 400 and traveling wheels 500. The steering wheels 400 are used to control the direction of travel of the surface cleaning device, and the traveling wheels 500 are used to drive the surface cleaning device forward. The steering wheels 400 are located at the front of the housing assembly 100, and the cleaning assembly 600 is rotatably connected to the bottom of the housing assembly 100, thus located at the rear of the housing assembly 100.

[0052] like Figure 2 As shown, the present disclosure provides two traveling wheels 500, which are located approximately at the center of the housing assembly 100 in the front-rear direction and on both sides of the housing assembly 100 in the left-right direction. Furthermore, a single steering wheel 400 is provided, which can be a caster wheel. This caster wheel is positioned at the center of the surface cleaning device in the left-right direction and near the front end of the surface cleaning device. Of course, the present disclosure also provides two or more steering wheels 400.

[0053] In actual use, the walking wheels 500 can be driven and rotated. By controlling the walking wheels 500 to rotate at a constant speed, the surface cleaning equipment can move forward. Correspondingly, by controlling the walking wheels 500 to rotate at unequal speeds, the surface cleaning equipment can be turned.

[0054] In this disclosure, the housing assembly 100 is further provided with a side brush assembly 200, wherein the side brush assembly 200 can be configured as one or two; Figure 2 In the implementation shown, the side brush assembly 200 is configured as a single unit, positioned on the right side of the front end of the housing assembly 100; thereby, by rotating the side brush assembly 200, dirt on the surface to be cleaned can be agitated, and the surface to be cleaned can be cleaned. In this disclosure, the side brush assembly 200 may also be referred to as a side brush assembly.

[0055] In addition, a cleaning assembly 300 is also provided on the housing assembly 100. The cleaning assembly 300 is located at the middle position in the front-rear direction of the housing assembly 100, and its length direction is the width direction of the housing assembly 100. More specifically, the cleaning assembly 300 may include an agitator 310 and a self-cleaner 320; wherein, the agitator 310 may be formed in the form of a roller brush, which may include a plurality of extended bristles. Moreover, the agitator 310 can be driven by a cleaning drive device, thereby being able to rotate about the transverse axis of the agitator 310; wherein, the transverse direction is the left-right direction, the transverse axis is the central axis or rotation axis of the agitator 310, and the transverse axis is a straight line parallel to the surface to be cleaned.

[0056] In one embodiment, the two ends of the agitator 310 are pivotally mounted on the housing assembly 100, and the housing assembly 100 has an opening facing the surface to be cleaned. The agitator 310 is disposed at the opening, and at least a portion of the agitator 310 extends below the opening of the housing assembly 100. Thus, when the agitator 310 is driven to rotate, its bristles can make frictional contact with the surface to be cleaned, thereby agitating dirt and dust on the surface to be cleaned and achieving cleaning of the surface.

[0057] In addition, the housing assembly 100 of this disclosure includes a vacuum suction port that can be provided with vacuum suction (negative pressure) to draw 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 retained in the dust box, and the separated gas is discharged to the outside of the surface cleaning device.

[0058] In a preferred embodiment, at least a portion of the vacuum suction port is located below the fixture 322, so that dirt cleaned by the fixture 322 will also be adsorbed by the vacuum suction port.

[0059] The self-cleaner 320 disclosed herein is installed near the agitator 310 and is used to clean the agitator 310. The structure of the self-cleaner 320 will be described in detail below.

[0060] In a preferred embodiment, a cleaning component 600 is further provided on the housing assembly 100; in this disclosure, the cleaning component 600 is rotatably connected to the housing assembly 100 and configured to clean the surface to be cleaned. Specifically, the cleaning component 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 the cleaning component 600.

[0061] like Figure 2 As shown, the cleaning component 600 is a cleaning disc, which includes a cleaning surface made of a soft cloth. 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, a certain gap needs to be formed between the cleaning disc and the bottom wall of the housing assembly 100 to avoid interference from the bottom wall of the housing assembly 100 on the rotation of the cleaning disc. Furthermore, the distance between the cleaning component 600 and the bottom wall of the housing assembly 100 can be adjusted; that is, the rotating shaft of this disclosure can be driven to move in the vertical direction, and correspondingly, the cleaning disc can also move in the vertical direction, thereby adjusting the pressure of the cleaning disc on the surface to be cleaned by the vertical movement of the cleaning disc.

[0062] like Figure 2As shown, the present disclosure provides two cleaning discs, which are respectively disposed on the left and right sides of the rear end of the housing assembly 100. In one embodiment, the two cleaning discs can come into pressure contact when rotating, thereby enabling wet mopping of the surface to be cleaned, thus achieving wet cleaning of the surface to be cleaned. Correspondingly, during the cleaning process of the surface to be cleaned, since there is no gap or the gap is small between the cleaning discs in the left and right direction, there will be no areas that are missed during cleaning.

[0063] Since the sweeping component 300 is located in front of the cleaning component 600, the surface cleaning device of this disclosure can use the cleaning component 600 to clean the surface to be cleaned after the sweeping component 300 has finished sweeping the surface to be cleaned.

[0064] Therefore, when the surface cleaning device of this disclosure is in operation, the cleaning component 600 of the surface cleaning device can perform self-cleaning according to its working time; more preferably, the working time can vary depending on the degree of dirt on the ground. For example, when the degree of dirt on the ground is high, the working time can be set to be relatively short; correspondingly, when the degree of dirt on the ground is low, the working time can be set to be relatively long.

[0065] Meanwhile, after the surface cleaning equipment completes the cleaning operation within the predetermined time, it can automatically return and dock at the base station, and the base station will perform self-cleaning on the cleaning component 600 of the surface cleaning equipment.

[0066] Figure 3 This is a schematic diagram of the structure of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure. Figure 4 This is a schematic diagram of the structure of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure (inward retraction state). Figure 5 This is a partial structural diagram (inwardly retracted) of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure. Figure 6 This is a schematic diagram of the gear connection relationship of a surface cleaning device according to one embodiment of the present disclosure. Figure 7 This is a schematic diagram of the side brush assembly (outward expansion state) of a surface cleaning device according to one embodiment of the present disclosure. Figure 8 This is a partial structural diagram (outward expansion state) of the side brush assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0067] As he 3 to Figure 8 As shown in this disclosure, the side brush assembly 200 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.

[0068] like Figure 3As shown, the substrate 210 can be disposed on the housing assembly 100. In a preferred embodiment, the substrate 210 is separately formed from the housing assembly 100 and is fixed to the housing assembly 100. In another embodiment, the substrate 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.

[0069] like Figure 6 and Figure 8 As shown, the base 210 of this disclosure may include a stop portion 211, which is formed as an arm of the base 210; when the rocker assembly 250 interacts with the base 210, the rocker assembly 250 engages with the stop portion 211 of the base 210 and makes pressure contact.

[0070] The brush arm 220 is pivotally connected to the base 210 via a pivot axis 270; in other words, the brush arm 220 of this disclosure is rotatably connected to the base 210, and the axis of rotation of the brush arm 220 relative to the base 210 is the center line of the pivot axis 270. In a preferred embodiment, the center line of the pivot axis 270 is set substantially vertically, thereby allowing the center line of the pivot axis 270 to be set substantially vertically and perpendicular to the substantially horizontal surface to be cleaned when the surface cleaning device of this disclosure is in use.

[0071] 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 axis of rotation of the cleaning brush 230 relative to the brush arm 220 is approximately parallel to the center line of the pivot axis 270. That is, when the surface cleaning device is cleaning the surface, the axis of rotation of the cleaning brush 230 is approximately perpendicular to the surface, thus providing a large cleaning area.

[0072] In this disclosure, when the brush arm 220 rotates relative to the substrate 210, it has a first position and a second position; in the first position, the brush arm 220 is close to the substrate 210; in the second position, the brush arm 220 is away from the substrate 210.

[0073] In other words, in this disclosure, the first position can also be referred to as the retracted position, at which time the cleaning brush 230 is in the retracted state, and correspondingly, the brush arm 220 can be housed inside the housing assembly 100; the second position can also be referred to as the outward expansion position, at which time the cleaning brush 230 is in the outward expansion state, and correspondingly, the end of the brush arm 220 away from the base 210 can be located outside the housing assembly 100.

[0074] Therefore, in the side brush assembly 200 of this disclosure, the cleaning area and the area that can be cleaned can be further increased by setting the pivotable brush arm 220, especially the cleaning of places such as crevices and corners; and by controlling the rotation of the brush arm 220, the side brush assembly 200 of this disclosure can be controlled more reliably.

[0075] Specifically, whether in the retracted or expanded state, at least a portion of the cleaning brush 230 can extend beyond the outer perimeter of the surface cleaning device, and the rotation direction of the cleaning brush 230 is set to sweep particles outside the outer perimeter of the surface cleaning device toward the cleaning assembly 300 on the lower side of the surface cleaning device. Figure 2 As shown in the example, when the surface cleaning device is cleaning the surface to be cleaned, the cleaning brush 230 rotates counterclockwise when viewed from top to bottom.

[0076] For example, cleaning brush 230 sweeps debris toward an area in front of the surface cleaning device, or sweeps debris into the projected cleaning path of the surface cleaning device. During obstacle following action, as the surface cleaning device travels along the perimeter of an obstacle and its side tracks the obstacle, cleaning brush 230 sweeps debris along the obstacle. Cleaning brush 230 is positioned close to the front side of the surface cleaning device, with at least a portion extending beyond the side of the surface cleaning device so that cleaning brush 230 can access particles positioned along the obstacle and at a corner defined by the obstacle.

[0077] The arrangement of the cleaning brush 230 relative to the sweeping assembly 300 and cleaning assembly 600 of the surface cleaning device is... Figure 2 Shown (bottom view). The width of the sweeping assembly 300 and the rotational cleaning range 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 guide particles into the dustbin of the surface cleaning device from below, and the cleaning brush 230 is rotated to push particles toward the sweeping assembly 300. The cleaning brush 230 enables the surface cleaning device to pick up particles outside the cleaning range of the sweeping assembly 300, and the cleaning brush 230 sweeps the projected cleaning path of the particles entering the cleaning width of the surface cleaning device.

[0078] The cleaning brush 230 is rotatable to sweep the surface to be cleaned and propel debris toward the cleaning assembly 300. The cleaning brush 230 rotates about an axis of rotation. In some embodiments, the cleaning brush 230 rotates about an axis that forms an angle of less than 90 degrees with the surface to be cleaned.

[0079] The brush arm 220 of this disclosure is arranged substantially horizontally, thereby serving not only to support the rotation of the cleaning brush 230, but also to drive the cleaning brush 230 to move in a given direction (e.g., 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.

[0080] In one embodiment, the brush arm 220 of this disclosure may include a base portion 221 and a cover portion 222; correspondingly, a receiving space is formed between the base portion 221 and the cover portion 222, and a plurality of gears are disposed in the receiving space; that is, the brush arm 220 of this disclosure can be formed as a gearbox as a whole.

[0081] In this disclosure, such as Figure 4 As shown, the cover portion 222 is provided with a protrusion 223, and a motor mounting base is formed through the protrusion 223. A power motor 260 is installed in the motor mounting base. In a preferred embodiment, the rotation axis of the output shaft of the power motor 260 is set approximately vertically.

[0082] The upper end of the protrusion 223 extends outward to form a boss 224, and the upper end of the pivot 270 is fixed to the boss 224. For example, the boss 224 has a mounting hole, the pivot 270 is inserted into the mounting hole, and the pivot 270 is interference-fitted with the inner wall of the mounting hole, thereby allowing the pivot 270 and the boss 224 to be fixed together. Of course, the pivot 270 of this disclosure can also be fixed to the boss 224 by means of adhesive or the like.

[0083] The lower end of the pivot shaft 270 can be fixed to the cover portion 222; for example, the cover portion 222 has a mounting hole, the pivot shaft 270 is inserted into the mounting hole, and the pivot shaft 270 is interference-fitted with the inner wall of the mounting hole, thereby allowing the pivot shaft 270 and the cover portion 222 to be fixed together. Of course, the pivot shaft 270 of this disclosure can also be fixed to the cover portion 222 by means of adhesive or the like.

[0084] Of course, the two ends of the pivot shaft 270 of this disclosure can also be rotatably disposed in these two mounting holes.

[0085] At least a portion of the base 210 is rotatably disposed on the pivot axis 270 and located between the boss portion 224 and the cover portion 222, thereby enabling the brush arm 220 to pivot stably relative to the base 210.

[0086] In this disclosure, a power component 240 connects the base 210 and the brush arm 220, providing 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. This elastic component connects the base 210 and the brush arm 220, providing an elastic pivoting force between the base 210 and the brush arm 220.

[0087] Accordingly, the pivoting force provided by the power component 240 enables the brush arm 220 to have a tendency to move towards the second position relative to the base 210. At this time, one end of the elastic component is connected to or abuts against the base 210, and the other end is connected to or abuts against the brush arm 220.

[0088] In other words, when the brush arm 220 is in a free state, the pivoting force provided by the power unit 240 can move the brush arm 220 from the first position to the second position.

[0089] In a preferred embodiment, the side brush assembly (or surface cleaning device) of this disclosure may further include a sensor for detecting the relative position of the brush arm 220 and the substrate 210. In one embodiment, the sensor may be a rotary encoder, thereby enabling the relative position of the brush arm 220 and the substrate 210 to be obtained via the rotary encoder. In another embodiment, the sensor may be a limit switch, for example, multiple limit switches may be configured such that different limit switches are triggered when the brush arm 220 is in different positions, thereby obtaining the position of the brush arm 220 by the position of the triggered limit switch.

[0090] The joystick assembly 250 of this disclosure is disposed on the brush arm 220, wherein the joystick assembly 250 is controlled such that the joystick assembly 250 can periodically release or overcome pivoting force to change the relative position of the brush arm 220 and the base 210.

[0091] In other words, the rocker assembly 250 of this disclosure can periodically release or overcome pivoting force according to a driving force signal to change the relative position of the brush arm 220 and the base 210. The driving force signal is the output shaft rotation signal of the power motor 260.

[0092] In this 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 to the rocker assembly 250 so that the rocker assembly 250 can periodically release or overcome the pivoting force.

[0093] Specifically, such as Figure 6As shown, viewed from top to bottom, when the power motor 260 rotates in the 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 drive gear 201 to rotate, and the drive gear 201 drives the first coaxial gear 202. The larger gear of the first coaxial gear 202 meshes with and transmits power to the drive gear 201, and the number of teeth on the first coaxial gear 202 is greater than the number of teeth on the drive gear 201, thus creating a speed reduction transmission between the drive gear 201 and the first coaxial gear 202. The first coaxial gear rotates counterclockwise.

[0094] The pinion of the first coaxial gear 202 drives the idler wheel 203 to rotate; and the idler wheel 203 drives the second coaxial gear 204 to rotate; wherein, the gear shaft of the second coaxial gear 204 is rotatably disposed on the brush arm 220 and fixedly connected to the cleaning brush 230, so that when the second coaxial gear 204 rotates, the cleaning brush 230 can rotate at the same speed as the second coaxial gear 204; correspondingly, the cleaning brush 230 can also rotate counterclockwise and realize the cleaning operation of the surface to be cleaned.

[0095] Additionally, 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.

[0096] Specifically, refer to Figure 6 When the power motor 260 rotates in the second direction (the second direction is the opposite of the first direction, i.e., counterclockwise), the second coaxial gear 204 will rotate clockwise. Correspondingly, the large gear of the second coaxial gear 204 meshes with the idler gear. The small gear of the second coaxial gear 204 will drive the driven gear 205 to rotate. At this time, the driven gear 205 will have the same rotation direction as the power motor 260.

[0097] Driven gear 205 is connected to shaft 207 via one-way bearing 206 (overrunning clutch); specifically, shaft 207 of this disclosure is rotatably disposed on brush arm 220, and one-way bearing 206 is configured such that when driven gear 205 rotates counterclockwise, it drives shaft 207 to rotate; when driven gear 205 rotates clockwise, it does not drive shaft 207 to rotate.

[0098] Of course, those skilled in the art should know that when there are gears with different numbers of stages between the power motor 260 and the driven gear 205, the power motor 260 and the driven gear 205 can also have different rotation directions. In this case, the configuration of the one-way bearing 206 can be separated and combined according to actual needs for different rotation directions.

[0099] With the above structure, the side brush assembly 200 of this disclosure can drive and extend the cleaning brush 230 outward by different rotation directions of the same power motor 260, and keep the cleaning brush 230 able to rotate to clean the floor.

[0100] See 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 pivoting 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 pivoting force to move the brush arm 220 from the second position to the first position.

[0101] Specifically, from a top view of the side brush assembly 200, the first stroke is a counterclockwise rotation of the brush arm 220 around the pivot axis 270; conversely, the second stroke is a clockwise rotation of the brush arm 220 around the pivot axis 270.

[0102] The structure of the joystick assembly 250 will be described in detail below.

[0103] Figure 9 This is a schematic diagram of the structure of an eccentric wheel according to one embodiment of the present disclosure.

[0104] like Figure 5 and Figure 8 As shown, the rocker assembly 250 of this disclosure includes an eccentric wheel 251 and a rocker component 252; wherein the eccentric wheel 251 can be fixed on the rotating shaft 207 and rotate together with the rotating shaft 207; in another embodiment, when the rotating shaft 207 is fixed to the brush arm 220, the inner ring of the one-way bearing 206 is configured to rotate relative to the rotating shaft 207, at which 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 207.

[0105] In other words, in this disclosure, it is only necessary to keep the inner ring of the one-way bearing 206 fixed together with the eccentric wheel 251 and able to rotate together. Correspondingly, the outer ring of the one-way bearing 206 is fixedly connected to the driven gear 205.

[0106] Accordingly, the eccentric wheel 251 of this disclosure is driven by the power motor 260 to be able to rotate; the rocker arm 252 is located between the eccentric wheel 251 and the base 210, and under the action of the eccentric wheel 251, the rocker arm 252 provides interaction to the base 210, the interaction including abutting the base 210 or periodically releasing the abutment to the base 210.

[0107] In other words, the eccentric wheel 251 of this disclosure has a rotation axis and a geometric center, which do not coincide. Furthermore, the outer circumferential surface of the eccentric wheel 251 of this disclosure has a first portion and a second portion; wherein the first portion of the outer circumferential surface is the surface with a smaller distance from the rotation axis; and the second portion of the outer circumferential surface is the surface with a larger distance from the rotation axis. Figure 9 As shown, a limiting plane 251A is formed on the second part of the outer peripheral surface of this disclosure. The limiting plane 251A is perpendicular to the plane containing the rotation axis and the geometric center.

[0108] Figure 10 This is a schematic diagram of the structure of a rocker arm component according to one embodiment of the present disclosure.

[0109] like Figure 10 As shown, the rocker arm component 252 of this disclosure includes a first arm 252A and a second arm 252B. The first arm 252A and the second arm 252B are located on both sides of the 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.

[0110] Specifically, with Figure 5 The inward-retracted state shown is the initial state, with the power motor 260 maintaining a clockwise rotation 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 will rotate clockwise, causing the eccentric wheel 251 to rotate clockwise as well. The distance between the rotation axis of the eccentric wheel 251 and the first arm 252A of the rocker arm 252 will gradually decrease, allowing the rocker arm 252 to rotate counterclockwise. At this time, under the action of the pivoting force, the brush arm 220 will rotate counterclockwise around the pivot axis 270, and the stop portion 211 of the base 210 will push the rocker arm 252 to rotate counterclockwise, causing the first arm 252A of the rocker arm 252 to maintain pressure contact with the outer periphery of the eccentric wheel 251.

[0111] In other words, due to the rotation of the eccentric wheel 251, the distance between the rotation axis of the eccentric wheel 251 and the first arm 252A decreases, thereby relieving the second arm 252B from contact with the substrate and releasing the pivoting force. Accordingly, the brush arm 220 is in the first stroke and gradually expands outward.

[0112] The brush arm 220 is in the second position as follows: Figure 7 and Figure 8 As shown.

[0113] exist Figure 7 and Figure 8In the state shown, the power motor 260 switches its rotation direction, that is, the power motor 260 rotates clockwise to drive the cleaning brush 230 to rotate counterclockwise to pick up particles on the surface to be cleaned near the obstacle.

[0114] 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 its output direction. At this time, the power motor 260 will rotate counterclockwise, causing 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 arm 252 will gradually increase. Correspondingly, the rocker arm 252 will rotate clockwise under the drive of the eccentric wheel 251. At this time, the second arm 252B of the rocker arm 252 will make pressure contact with the stop 211 of the base 210, causing the brush arm 220 to rotate clockwise around the pivot axis 270. Thus, the driving force provided by the rocker arm 252 will overcome the pivot force. Correspondingly, the brush arm 220 will be in the second stroke and move from the second position to the first position.

[0115] On the other hand, Figure 5 In this state, when the power motor 260 rotates clockwise, causing the brush arm 220 to be in a certain position... 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, thereby stopping the eccentric wheel 251 from rotating and fixing the position of the rocker arm component 252, so that the cleaning brush 230 is in the cleaning state.

[0116] See again Figure 9 In this disclosure, the rocker arm component 252 forms a clearance portion 252D for avoiding the eccentric wheel 251. During the first and second strokes, the clearance portion 252D provides rotational clearance space for the eccentric wheel 251. More specifically, the clearance portion 252D is disposed 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 not less than the outer diameter of the eccentric wheel 251.

[0117] In other words, due to the setting of the avoidance part 252D, the eccentric wheel 251 will not touch the second arm 252B during rotation, and accordingly, the rocker assembly 250 of this disclosure is easier to control.

[0118] In a preferred embodiment, the first arm 252A includes a straight portion that is tangent to the clearance portion 252D, such that the contact point between the eccentric wheel 251 and the first arm 252A smoothly transitions from the straight portion to the clearance portion 252D.

[0119] In this disclosure, when the brush arm 220 is in the first position, the limiting plane 251A of the eccentric wheel 251 can contact the straight surface of the first arm 252A, thereby the eccentric wheel 251 can stably hold the brush arm 220 in the first position.

[0120] Therefore, in the first stroke, there is no or a small amount of contact between the straight part and the eccentric wheel 251, while in the second stroke, there is a large amount of contact between the straight part and the eccentric wheel 251.

[0121] On the other hand, the second arm 252B includes a curved portion that is tangent to the clearance 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 clearance portion 252D.

[0122] Therefore, the side brush assembly 200 of this disclosure can achieve both the sweeping drive and the outward-inward drive of the cleaning brush 230 via the same power motor 260; moreover, the side brush assembly 200 can be detachably mounted as a unit to the housing assembly 100 of the surface cleaning device; the brush arm 220 and the base 210 can be mounted as a whole to or detached from the housing assembly 100, 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 ground surface (on which the surface cleaning device moves) or in response to changes in ground type. If the cleaning brush 230 is arranged on the brush arm 220, contact between the cleaning brush 230 and obstacles on the ground surface can also cause the brush arm 220 to move. This can effectively increase the cleaning area.

[0123] During obstacle following, the surface cleaning device travels near the periphery of the obstacle, positioning the sides adjacent to the periphery. By positioning close to the sides, the cleaning brush 230 is positioned to access debris along the periphery of the obstacle during obstacle following. For example, on the obstacle side, the brush arm 220 changes position so that the cleaning brush 230 can approach the target being tracked or a wall.

[0124] Figure 11 This is a schematic diagram of the structure of a cleaning assembly according to one embodiment of the present disclosure. Figure 12 This is a schematic diagram of the structure of a rotating component according to one embodiment of the present disclosure. Figure 13 This is a structural schematic diagram of a fastener according to one embodiment of the present disclosure.

[0125] like Figures 11 to 13As shown, in this disclosure, the self-cleaning device 320 includes components such as a rotating member 321 and a fixing member 322. The rotating member 321 is pivotally mounted at both ends to the housing assembly 100, thereby allowing it to be driven by a motor or other drive device to rotate. The fixing member 322 can be fixed to the housing assembly 100, thus maintaining a preset posture relative to the housing assembly 100.

[0126] like Figure 12 As shown, the rotating member 321 includes an elongated component 321A and first comb teeth 321B. Specifically, the elongated component 321A is generally cylindrical, and its two ends are rotatably disposed on the housing assembly 100, such that the elongated component 321A extends along the transverse axis of the stirring member 310. That is, in this disclosure, the axis of rotation of the elongated component 321A is parallel or substantially parallel to the axis of rotation of the stirring member 310.

[0127] The first comb tooth 321B is connected to the elongated component 321A. In a preferred embodiment, the first comb tooth 321B and the elongated component 321A can be integrally formed, and correspondingly, the first comb tooth 321B can rotate together with the elongated component 321A. That is, when the rotating component 321 of this disclosure is driven, it can rotate as a whole along the central axis (rotation axis) of the elongated component 321A.

[0128] In one embodiment, the first comb teeth 321B are configured to be 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 this disclosure can be configured to be multiple rows, and when the first comb teeth 321B are configured to be multiple rows, the multiple rows of first comb teeth 321B can be distributed along the circumferential direction of the elongated member 321A.

[0129] At least one row of first comb teeth 321B extends along a predetermined path on the elongated member 321A. Preferably, this path is a spiral path. Furthermore, the spiral path extends along the surface of the elongated member 321A from a position at a first end of the elongated member 321A to a position at a position at a second end of the elongated member 321A, thereby enabling the first comb teeth 321B of this disclosure to spirally wrap around the elongated member 321A at least once in the circumferential direction.

[0130] In this disclosure, when the cleaning component 300 is installed on the housing component 100, the transverse axis of the elongated component 321A is located behind the transverse axis of the agitator 310. Thus, the self-cleaner 320 of this disclosure can clean the agitator 310 from behind, preventing the already cleaned surface from being contaminated again.

[0131] In one specific embodiment, the first comb tooth 321B includes a plurality of sheet-like components extending from the elongated component 321A, with gaps between these sheet-like components, and the edges of the first comb tooth 321B being the free ends of the sheet-like components. In a preferred embodiment, the sheet-like components have a thickness, and the distance between two adjacent sheet-like components is approximately the same as the thickness of the sheet-like components. That is, the size of the gap in the lateral direction is approximately the same as the thickness of the sheet-like components.

[0132] like Figure 13 As shown, the fixing member 322 of this 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-like structure, with its length direction parallel or substantially parallel to the transverse direction. In other words, the transverse direction (i.e., the length direction of the fixing member 322) of this disclosure is parallel or substantially parallel to the transverse direction (transverse axis) of the stirring member 310.

[0133] The second comb tooth 322B and the base 322A can be integrally formed. In a preferred embodiment, the upper end of the second comb tooth 322B is connected to the base 322A, and the lower end of the second comb tooth 322B is formed as a free end.

[0134] In a preferred embodiment, the second comb tooth 322B includes a plurality of sheet-like components extending from the base 322A of the fixing member 322. Similar to the structure of the first comb tooth 321B, the sheet-like components in the second comb tooth 322B have a thickness, a predetermined distance is spaced between two adjacent sheet-like components, and the sum of the thickness of the sheet-like components of the second comb tooth 322B and the predetermined distance is the same as the sum of the thickness of the sheet-like components of the first comb tooth 321B and the distance between the sheet-like components.

[0135] More preferably, in the second comb tooth 322B, the thickness of the sheet-like component is less than (slightly less than) the preset distance between the two sheet-like components.

[0136] A clearance area is formed between the plurality of plate-like components of the second comb tooth 322B and the base 322A. Specifically, the clearance area of ​​this disclosure can connect to the gap between two plate-like components of the second comb tooth 322B. In a preferred embodiment, the plate-like components of the first comb tooth 321B and the second comb tooth 322B have approximately the same thickness, so that the first comb tooth 321B can cross through the second comb tooth 322B.

[0137] Meanwhile, during the engagement of the first comb tooth 321B and the second comb tooth 322B, the edge of the first comb tooth 321B can pass through the avoidance area.

[0138] 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 elongated member is configured to transmit force, i.e., 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 agitator 310 when the agitator 310 is rotating.

[0139] Meanwhile, due to the spiral winding of the first comb tooth 321B, on the one hand, the first comb tooth 321B can pass through the second comb tooth 322B one by one, preventing the rotating part 321 from getting stuck; on the other hand, considering the spiral arrangement of the bristles, the first comb tooth 321B arranged in this way will not impact and damage the bristles, thus improving the service life of the stirring part.

[0140] In one specific embodiment, the avoidance area includes an avoidance surface, the cross-section of which is arc-shaped. That is, the avoidance surface is formed as an arc-shaped surface, thereby ensuring that the edge of the first comb tooth 321B maintains a constant distance from the avoidance area when it rotates through it, preventing dirt that is difficult to clean from appearing in the avoidance area.

[0141] Preferably, during the engagement of the first comb tooth 321B and the second comb tooth 322B, the distance between the edges of the multiple plate-like components of the first comb tooth 321B and the clearance area is not less than 0.5 mm. In other words, the distance between the edge of the first comb tooth 321B and the bottom of the clearance area is not less than 0.5 mm, thereby effectively preventing interference between the rotating and fixed components.

[0142] In a preferred embodiment, the free ends of the plurality of plate-shaped components of the second comb tooth 322B face the agitator 310, thereby enabling the second comb tooth 322B to conveniently remove the dirt removed from the agitator 310 by the first comb tooth 321B from the first comb tooth 321B.

[0143] In this disclosure, when the surface cleaning equipment performs a cleaning operation, the elongated component 321A rotates in the same direction as the agitator 310. Moreover, the rotational speed of the elongated component 321A is less than the rotational speed of the agitator 310.

[0144] In another embodiment of this disclosure, the cleaning component 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 this disclosure may include components such as a housing assembly and an agitator. The housing assembly includes a vacuum nozzle to provide vacuum suction. The difference from the above embodiments lies in the shape of the housing assembly of the cleaning head of the handheld vacuum cleaner, which is different from the shape of the housing assembly of the autonomous mobile surface cleaning robot. The connection method between the agitator and the self-cleaner and the housing assembly is the same as in the above embodiments, and will not be described again here.

[0145] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0146] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0147] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A cleaning assembly, characterized in that, include: A stirring element comprising a plurality of extended bristles, and the stirring element being rotatable about a transverse axis of the stirring element; as well as A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated part and first comb teeth; the elongated part extends along the transverse axis of the stirring component, the first comb teeth are connected to the elongated part and rotate together with the elongated part; wherein the first comb teeth are arranged in at least one row; when the elongated part rotates, at least a portion of the edge of the at least one row of first comb teeth interferes with the bristles; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to be driven and rotated such that the edge of the first comb tooth rotates from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

2. The cleaning assembly according to claim 1, characterized in that, The at least one row of first comb teeth extends along a predetermined path on the elongated component.

3. The cleaning assembly according to claim 2, characterized in that, The path is a spiral path.

4. The cleaning assembly according to any one of claims 1-3, characterized in that, The spiral path extends along the surface of the elongated component from the first end of the elongated component to the second end of the elongated component; Optionally, the transverse axis of the elongated component is located behind the transverse axis of the agitator; Optionally, the first comb teeth include a plurality of sheet-like components extending from the elongated component, the edges being the free ends of the sheet-like components; Optionally, the second comb teeth include a plurality of sheet-like components extending from the base of the fastener; Optionally, an avoidance area is formed between the plurality of plate-like components of the second comb teeth and the base; Optionally, during the engagement of the first comb tooth and the second comb tooth, the edge of the first comb tooth can pass through the avoidance area; Optionally, the avoidance area includes an avoidance surface, the cross-section of which is an arc shape; Optionally, during the engagement of the first comb tooth and the second comb tooth, the distance between the edges of the multiple plate-like components of the first comb tooth and the avoidance area is not less than 0.5 mm; Optionally, the free ends of the plurality of plate-like components of the second comb teeth face the agitator; Optionally, when the cleaning assembly performs cleaning operations, the elongated component rotates in the same direction as the agitator.

5. An autonomous mobile surface cleaning robot, the autonomous mobile surface cleaning robot being configured to move on a surface to be cleaned; characterized in that, include: Housing assembly; A stirring element, which is mounted on the housing assembly, includes a plurality of extending bristles and is rotatable about a transverse axis of the stirring element. as well as A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated member and first comb teeth; the elongated member extends along the transverse axis of the stirring component and is pivotally connected to the housing assembly; the first comb teeth are connected to the elongated member and rotate together with the elongated member; wherein the first comb teeth are arranged in at least one row; at least a portion of the edges of the at least one row of first comb teeth interfere with the bristles when the elongated member rotates; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to transmit force to rotate the edge of the first comb tooth from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

6. The autonomous mobile surface cleaning robot according to claim 5, characterized in that, The housing assembly has an opening toward the surface to be cleaned, the agitator is disposed at the opening, and at least a portion of the agitator extends below the opening of the housing assembly.

7. The autonomous mobile surface cleaning robot according to claim 6, characterized in that, The housing assembly includes a vacuum suction port, at least a portion of which is located below the fixing member.

8. A cleaning head for a handheld vacuum cleaner, characterized in that, include: A housing assembly including a vacuum inlet for providing vacuum suction through the vacuum inlet; A stirring element, which is mounted on the housing assembly, includes a plurality of extending bristles and is rotatable about a transverse axis of the stirring element. as well as A self-cleaning device, mounted close to the agitator and used to clean the agitator, the self-cleaning device comprising: A rotating component, comprising an elongated member and first comb teeth; the elongated member extends along the transverse axis of the stirring component and is pivotally connected to the housing assembly; the first comb teeth are connected to the elongated member and rotate together with the elongated member; wherein the first comb teeth are arranged in at least one row; at least a portion of the edges of the at least one row of first comb teeth interfere with the bristles when the elongated member rotates; and The fastener includes a second comb tooth arranged in a transverse direction along the fastener, the first comb tooth being capable of engaging with the second comb tooth, and the elongated member being configured to transmit force to rotate the edge of the first comb tooth from a first position interfering with the bristles to a second position engaging with the second comb tooth, so as to remove debris or hair adhering to the agitator when the agitator rotates.

9. The cleaning head of the handheld vacuum cleaner according to claim 8, characterized in that, The housing assembly has an opening toward the surface to be cleaned, the agitator is disposed at the opening, and at least a portion of the agitator extends below the opening of the housing assembly.

10. The cleaning head of the handheld vacuum cleaner according to claim 9, characterized in that, At least a portion of the vacuum suction port is located below the fixture.

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