Cleaning assembly and self-moving surface cleaning robot

Abstract

The utility model provides a cleaning assembly and a self-moving surface cleaning robot. The cleaning assembly comprises a shell assembly, a first driving part, a second driving part, a pneumatic lifting unit and an air inlet and outlet. The first driving piece is arranged on the shell assembly; at least part of the second driving piece is located in the first driving piece, and the first driving piece and the second driving piece can move relatively; the pneumatic lifting unit is driven under the air pressure action of the air flow, so that relative movement is generated between the first driving part and the second driving part; and the air inlet and outlet is formed in the shell assembly and is in fluid communication with the pneumatic lifting unit through the airflow channel.

Description

Technical Field

[0001] The present disclosure relates to a cleaning assembly and a self-moving surface cleaning robot. 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] Prior art household vacuum cleaning devices may include a mop to which a cleaning liquid can be applied, so that when the mop rotates, it can wet clean the surface to be cleaned to improve the cleaning effect of the surface to be cleaned.

[0005] The mop cloth of a conventional household vacuum cleaning device is generally configured to move up and down to ensure that the mop cloth has an appropriate contact force with the surface to be cleaned. In addition, when mopping is required, the mop cloth can also be raised to maintain a predetermined distance between the mop cloth and the surface to be cleaned.

[0006] However, the lifting drive devices of the mop in the prior art are all implemented by a screw structure or a cam structure, etc., and in actual use, it is often impossible to accurately control the contact force between the mop and the surface to be cleaned. Utility Model Content

[0007] The present disclosure provides a cleaning assembly and a self-moving surface cleaning robot.

[0008] According to one aspect of the present disclosure, there is provided a cleaning assembly comprising:

[0009] Air inlet and outlet, the air inlet and outlet are used for air flow in and out;

[0010] a first driving member;

[0011] a second driving member, wherein at least a portion of the first driving member is located inside the second driving member, and the first driving member and the second driving member are capable of relative movement; and

[0012] A pneumatic lifting unit is driven by the air pressure of the air flow passing through the air inlet and outlet to promote relative movement between the first driving member and the second driving member.

[0013] According to the cleaning assembly of at least one embodiment of the present disclosure, the first end of the pneumatic lifting unit is fixedly connected to the first driving member.

[0014] According to the cleaning assembly of at least one embodiment of the present disclosure, the second end of the pneumatic lifting unit is in abutting connection with the second driving member.

[0015] According to the cleaning component of at least one embodiment of the present disclosure, the pneumatic lifting unit includes a pneumatic actuating element, which is connected to the first driving member and / or the second driving member, and the pneumatic actuating element can extend or retract along the direction of relative movement of the first driving member and the second driving member under the action of air flow.

[0016] According to the cleaning assembly of at least one embodiment of the present disclosure, the air pressure actuated element includes an air bag, and the air bag is in fluid communication with the air inlet and outlet.

[0017] According to at least one embodiment of the present disclosure, the cleaning assembly further includes:

[0018] A rotary seal is provided on the housing assembly of the cleaning assembly, the air inlet and outlet are located on the rotary seal, and the rotary seal is configured to rotatably maintain an air pressure seal between the air inlet and outlet and the pneumatic lifting unit.

[0019] According to at least one embodiment of the present disclosure, the cleaning assembly includes a restoring member located between the first driving member and the second driving member.

[0020] According to the cleaning assembly of at least one embodiment of the present disclosure, the first driving member and the second driving member are connected together by snapping.

[0021] According to the cleaning assembly of at least one embodiment of the present disclosure, the first driving member and the second driving member are both cylindrical in shape and are concentrically arranged.

[0022] According to the cleaning assembly of at least one embodiment of the present disclosure, the first driving member is an inner sleeve, and the second driving member is an outer sleeve.

[0023] According to at least one embodiment of the present disclosure, the cleaning assembly further includes:

[0024] A position limiting guide structure is located between the first driving member and the second driving member to limit the relative circumferential rotation of the first driving member and the second driving member and allow the relative axial movement of the first driving member and the second driving member.

[0025] According to the cleaning component of at least one embodiment of the present disclosure, the limiting guide structure includes: a positioning guide groove formed in the circumference of the first driving member and extending along at least a portion of the axial direction of the first driving member, and / or a positioning guide rib formed inside the second driving member and extending along at least a portion of the axial direction of the second driving member.

[0026] According to the cleaning assembly of at least one embodiment of the present disclosure, the positioning guide grooves are evenly arranged along the circumference of the first driving member and extend axially from the free end of the first driving member.

[0027] According to at least one embodiment of the present disclosure, the cleaning assembly further includes:

[0028] The clamping structure is located between the first driving member and the second driving member, and is used to prevent the first driving member and the second driving member from being separated in the axial direction.

[0029] According to the cleaning assembly of at least one embodiment of the present disclosure, the clamping structure includes: an outer ring formed at the free end of the first driving member, and the outer ring is separated by the positioning guide groove in the circumferential direction of the free end so that the outer ring has radial elastic force as a whole.

[0030] According to the cleaning assembly of at least one embodiment of the present disclosure, the clamping structure includes: an inner ring formed at the free end of the second driving member, and the inner diameter of the inner ring is smaller than the outer diameter of the outer ring.

[0031] According to the cleaning assembly of at least one embodiment of the present disclosure, the inner ring is spaced apart by the groove structure of the second driving member in the circumferential direction of the free end of the second driving member.

[0032] According to the cleaning assembly of at least one embodiment of the present disclosure, the groove structure and the positioning guide rib have the same circumferential position on the second driving member.

[0033] According to at least one embodiment of the present disclosure, the cleaning assembly further includes:

[0034] A second drive assembly is operable to transmit a driving force to the first drive member and / or the second drive member.

[0035] According to the cleaning assembly of at least one embodiment of the present disclosure, the second driving assembly is connected to the first driving member to transmit rotational force to the first driving member.

[0036] According to the cleaning assembly of at least one embodiment of the present disclosure, the first driving member drives the second driving member to rotate through a limiting guide structure.

[0037] According to the cleaning assembly of at least one embodiment of the present disclosure, the second driving member includes a connecting portion, and the connecting portion is used to detachably connect the cleaning component.

[0038] According to another aspect of the present disclosure, a self-moving surface cleaning robot is provided, which includes the above-mentioned cleaning assembly. 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 one embodiment of the present disclosure (in an expanded state).

[0047] 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).

[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 1 is a schematic structural diagram of a surface cleaning device in another state according to an embodiment of the present disclosure.

[0051] Figure 12 1 is a schematic structural diagram of a surface cleaning device in another state and from another angle according to an embodiment of the present disclosure.

[0052] Figure 13 1 is a partial structural diagram of a surface cleaning device according to one embodiment of the present disclosure.

[0053] Figure 14 1 is a partial structural diagram of a surface cleaning device according to one embodiment of the present disclosure.

[0054] Figure 15 1 is a schematic structural diagram of a cleaning assembly and a first driving assembly of a surface cleaning device according to one embodiment of the present disclosure.

[0055] Figure 16 1 is a schematic structural diagram of a surface cleaning device according to one embodiment of the present disclosure, wherein the cleaning component is in an extended position.

[0056] Figure 17 1 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure, in which a cleaning component is in an initial position.

[0057] Figure 18 Schematic diagram of the structure of an elastic component of a surface cleaning device according to one embodiment of the present disclosure.

[0058] Figure 19 It is a schematic structural diagram of the middleware according to one embodiment of the present disclosure.

[0059] Figure 20 Schematic diagram of the structure of a cleaning component of a surface cleaning device according to one embodiment of the present disclosure.

[0060] Figure 21 Schematic diagram of the cross-sectional structure of a cleaning component of a surface cleaning device according to one embodiment of the present disclosure.

[0061] Figure 22 Schematic diagram of the assembly relationship between the first driving member and the second driving member according to one embodiment of the present disclosure.

[0062] Figure 23 Schematic diagram of an exploded structure between a first driving member and a second driving member according to one embodiment of the present disclosure.

[0063] Figure 24 2 is a schematic structural diagram of a second driving member according to an embodiment of the present disclosure.

[0064] The specific reference numerals in the figure are:

[0065] 100 shell components

[0066] 101 internal stent

[0067] 200 side brush assembly

[0068] 201 driving gear

[0069] 202 first coaxial gear

[0070] 203 idler

[0071] 204 second coaxial gear

[0072] 205 driven gear

[0073] 206 one-way bearing

[0074] 207 shaft

[0075] 210 matrix

[0076] 211 stopper

[0077] 220 brush arm

[0078] 221 base

[0079] 222 cover body

[0080] 223 protrusion

[0081] 224 boss

[0082] 230 cleaning brush

[0083] 240 power components

[0084] 250 rocker assembly

[0085] 251 eccentric wheel

[0086] 251A limit plane

[0087] 252 rocker components

[0088] 252A first arm

[0089] 252B Second Arm

[0090] 252C fulcrum

[0091] 252D Avoidance Department

[0092] 260 power motor

[0093] 270 pivot shaft

[0094] 300 cleaning components

[0095] 400 steering wheel

[0096] 500 travel wheels

[0097] 600 cleaning components

[0098] 610 housing components

[0099] 620 second drive assembly

[0100] 630 cleaning parts

[0101] 640 first driving member

[0102] 641 positioning guide groove

[0103] 642 Outer Ring

[0104] 650 second drive member

[0105] 651 positioning guide rib

[0106] 652 Inner Ring

[0107] 653 slot structure

[0108] 660 pneumatic lifting unit

[0109] 670 air inlet and outlet

[0110] 680 Rotary Seals

[0111] 690 reset piece

[0112] 700 first drive assembly

[0113] 710 first drive motor

[0114] 720 actuator

[0115] 730 follower

[0116] 740 middleware

[0117] 741 first action part

[0118] 742 second action part

[0119] 742A sliding part

[0120] 742B bulge

[0121] 742B1 first working surface

[0122] 742B2 second working surface

[0123] 800 elastic components. DETAILED DESCRIPTION

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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.

[0132] like Figure 1 and Figure 2 As shown, the surface cleaning device of the present disclosure may be a self-propelled surface cleaning device; as an example, the self-propelled surface cleaning device may be a sweeping robot, a mopping robot, a self-propelled surface cleaning robot, or a sweeping and mopping robot. The self-propelled surface cleaning device is capable of performing an autonomous cleaning operation, i.e., the surface cleaning device is capable of autonomously moving over the surface to be cleaned to clean the surface by sucking particles located on different parts of the surface to be cleaned.

[0133] by Figure 1 and Figure 2 Taking the sweeping and mopping robot shown in the figure as an example, the forward direction of the surface cleaning device is marked as the front, and the reference Figure 2 The viewing direction of the surface cleaning equipment is the upper side. The direction away from the surface cleaning equipment is the rear. 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] In addition, the housing assembly 100 is also provided with a cleaning assembly 300. The cleaning assembly 300 is disposed in the middle of the housing assembly 100 in the front-to-back direction, with its length extending along the width of the housing assembly 100. More specifically, the cleaning assembly 300 may be a roller brush that is rotatably connected to the housing assembly 100, with its axis of rotation parallel to the surface to be cleaned, such as the ground. In other embodiments of the present disclosure, the cleaning assembly 300 may be a structure well known to those skilled in the art. Figure 2 The specific structure when the cleaning component is a roller brush is shown. The rotation axis of the roller brush is parallel to the surface to be cleaned. When the cleaning disc rotates, the surface to be cleaned can be cleaned. No further details are given here.

[0139] Therefore, the rotating roller brush of the cleaning component 300 can disturb the dirt on the surface to be cleaned. The dirt can be sucked into the dust box and other devices through negative pressure adsorption, and the solid particles can be separated in the dust box and other devices, thereby completing the cleaning operation of the surface to be cleaned.

[0140] 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. Since the cleaning assembly 300 is located in front of the cleaning assembly 600, the surface cleaning device of the present disclosure can clean the surface to be cleaned using the cleaning assembly 600 after the cleaning assembly 300 has cleaned the surface to be cleaned.

[0141] 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.

[0142] 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.

[0143] 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 6Schematic 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 one 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).

[0144] 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 .

[0145] like Figure 3 As 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.

[0146] 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 .

[0147] 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.

[0148] 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.

[0149] 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 .

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] 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 22 (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 from below 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, and the cleaning brush 230 sweeps the projected cleaning path of particles into the cleaning width of the surface cleaning device.

[0155] 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.

[0156] 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.

[0157] 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.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] Of course, both ends of the pivot shaft 270 of the present disclosure may also be rotatably disposed in the two mounting holes.

[0162] 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 .

[0163] In the present disclosure, the power component 240 connects the base 210 and the brush arm 220 to provide an elastic 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.

[0164] Accordingly, the elastic 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 .

[0165] That is, when the brush arm 220 is in a free state, the elastic pivoting force provided by the power component 240 can enable the brush arm 220 to move from the first position to the second position.

[0166] 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 obtained by rotating the encoder. In another embodiment, the sensor may be a travel switch. For example, the travel switch may be provided in a plurality of ways. When the brush arm 220 is in different positions, different travel switches may be triggered, thereby enabling the position of the brush arm 220 to be obtained by the position of the triggered travel switch.

[0167] 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 elastic pivoting force to change the relative position of the brush arm 220 and the base 210 .

[0168] In other words, the rocker assembly 250 of the present disclosure can periodically release or overcome the elastic 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 the output shaft steering signal of the power motor 260.

[0169] 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 elastic pivot force.

[0170] Specifically, if Figure 6 As 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, thereby forming a reduction gear between the driving gear 201 and the first coaxial gear 202. The first coaxial gear will rotate counterclockwise.

[0171] 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.

[0172] 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 .

[0173] 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.

[0174] 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.

[0175] 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.

[0176] 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.

[0177] 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 elastic 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 elastic pivot force to move the brush arm 220 from the second position to the first position.

[0178] 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 .

[0179] The structure of the rocker assembly 250 will be described in detail below.

[0180] Figure 9 It is a structural schematic diagram of an eccentric wheel according to one embodiment of the present disclosure.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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.

[0185] Figure 10 2 is a schematic structural diagram of a rocker component according to an embodiment of the present disclosure.

[0186] 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 .

[0187] 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 elastic pivot 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.

[0188] 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 elastic pivot force. Accordingly, the brush arm 220 is in the first stroke and gradually expands outward.

[0189] The brush arm 220 is in the second position. Figure 7 and Figure 8 shown.

[0190] exist Figure 7 and Figure 8 In 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.

[0191] 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 elastic pivot force. Accordingly, the brush arm 220 will be in the second stroke and move from the second position to the first position.

[0192] 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.

[0193] Refer again Figure 9In 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.

[0194] 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.

[0195] 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.

[0196] 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.

[0197] 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 .

[0198] 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.

[0199] Thus, the side brush assembly 200 of the present disclosure can achieve both the sweeping drive and the expansion-contraction drive of the cleaning brush 230 through the same power motor 260; and 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 the base 210 can be mounted to or removed from the housing assembly 100 as a whole, making it easier to maintain the side brush assembly 200. In addition, the brush arm 220 can be moved relative to the housing assembly 100 of the surface cleaning device so that the brush arm 220 can move in response to contact with an obstacle along the floor surface (on which the surface cleaning device moves) or in response to changes in the floor type. If the cleaning brush 230 is arranged 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 can effectively increase the cleaning area.

[0200] 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.

[0201] Figure 11 1 is a schematic structural diagram of a surface cleaning device in another state according to an embodiment of the present disclosure. Figure 12 1 is a schematic structural diagram of a surface cleaning device in another state and from another angle according to an embodiment of the present disclosure. Figure 13 1 is a partial structural diagram of a surface cleaning device according to one embodiment of the present disclosure. Figure 14 1 is a partial structural diagram of a surface cleaning device according to one embodiment of the present disclosure. Figure 15 1 is a schematic structural diagram of a cleaning assembly and a first driving assembly of a surface cleaning device according to one embodiment of the present disclosure. Figure 16 1 is a schematic structural diagram of a surface cleaning device according to one embodiment of the present disclosure, wherein the cleaning component is in an extended position. Figure 17 1 is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure, in which a cleaning component is in an initial position. Figure 18 Schematic diagram of the structure of an elastic component of a surface cleaning device according to one embodiment of the present disclosure.

[0202] like Figures 11 to 18 As shown, the cleaning assembly 600 of the present disclosure is mounted on the housing assembly 100 and can move between an initial position (retracted position) and an extended position (outward expanded position) relative to the housing assembly 100; wherein the initial position is Figure 2 The position shown in FIG. 1 may also be referred to as the adducted position. The extended position is Figure 11 and Figure 12 The position shown may also be referred to as the expanded position.

[0203] Specifically, the housing assembly 100 of the present disclosure may include an inner bracket 101, and the cleaning assembly 600 is pivotally arranged on the inner bracket 101. For example, the cleaning assembly 600 is rotatably connected to the inner bracket 101 via a rotating shaft. In a preferred embodiment, the rotating shaft is arranged approximately vertically. The rotating shaft of the present disclosure may be fixed to the inner bracket 101, and the cleaning assembly 600 can rotate relative to the rotating shaft; or, the rotating shaft may be fixed to the cleaning assembly 600 and can rotate relative to the inner bracket 101; or, the rotating shaft can rotate relative to the inner bracket 101 and the cleaning assembly 600 can also rotate relative to the rotating shaft. The present disclosure does not limit the arrangement of the rotating shaft.

[0204] The cleaning assembly 600 also includes a rotation axis, which is also arranged approximately vertically and has a preset distance between the rotation axis and the rotation axis of the rotating shaft. Thus, when the cleaning assembly 600 rotates around the rotation axis, the cleaning assembly 600 can move between the initial position and the extended position.

[0205] In the present disclosure, the cleaning assembly 600 can be driven by the first driving assembly 700, thereby being able to rotate relative to the housing assembly 100. Specifically, the first driving assembly 700 includes: a first driving motor 710, an actuator 720, a driven member 730, and an intermediate member 740.

[0206] The first drive motor 710 is disposed in the housing assembly 100, for example, in the inner bracket 101, and the rotational motion is outputted by the first drive motor 710. Specifically, the first drive motor 710 can be an electric motor. In a preferred embodiment, the rotation axis of the first drive motor 710 can be a vertical straight line.

[0207] The actuator 720 is transmission-connected to the output shaft of the first drive motor 710. In a preferred embodiment, the actuator 720 can be a gear, whereby the first drive motor 710 can drive the actuator 720 to rotate. Accordingly, the rotation axis of the actuator 720 is the same as the rotation axis of the first drive motor 710.

[0208] The intermediate member 740 is rotatably disposed on the housing assembly 100 , and the intermediate member 740 can pivot relative to the housing assembly 100 under the action of the actuating member 720 ; and the rotation axis of the intermediate member 740 is also substantially vertically disposed.

[0209] In a specific embodiment, the intermediate member 740 includes a first acting portion 741 and a second acting portion 742. The first acting portion 741 includes a plurality of gear teeth, and the second acting portion 742 includes a sliding portion 742A and a protrusion 742B extending along the sliding portion 742A. In other words, the intermediate member 740 of the present disclosure is formed into an incomplete gear structure having an opening of a predetermined width between its two circumferential ends, wherein the sliding portion 742A and the protrusion 742B form one circumferential end of a half gear structure.

[0210] The intermediate member 740 interacts with the actuating member 720 at the first acting portion 741 ; that is, the actuating member 720 can drive the intermediate member 740 to rotate through the engagement of the gear and the plurality of gear teeth.

[0211] The intermediate member 740 interacts with the follower member 730 at the second acting portion 742 . That is, the follower member 730 can be driven to rotate by the cooperation between the second acting portion 742 and the follower member 730 .

[0212] In other words, the follower 730 is rotatably disposed on the housing assembly 100 to change its position relative to the housing assembly 100. Specifically, the follower 730 can pivot about a rotation axis relative to the housing assembly 100. That is, the rotation axis of the follower 730 relative to the housing assembly 100 coincides with the rotation axis of the cleaning assembly 600 relative to the housing assembly 100.

[0213] In addition, the intermediate member 740 of the present disclosure is located between the actuator 720 and the follower 730. The intermediate member 740 is configured to cooperate with the follower 730. Thus, the follower 730 can receive the actuating force of the actuator 720 and change its position relative to the housing assembly 100. In this case, the follower 730 is indirectly affected by the actuator 720, that is, directly affected by the intermediate member 740.

[0214] The follower 730 includes a protrusion configured to slidably abut against the projection 742B. More specifically, the projection 742B includes a first operating surface 742B1 and a second operating surface 742B2. In the initial position, the first operating surface 742B1 abuts against the protrusion, while in the extended position, the second operating surface 742B2 abuts against the protrusion. Thus, the projection 742B drives the follower 730 to rotate, causing the cleaning assembly 600 to rotate from the extended position to the initial position.

[0215] In a preferred embodiment, the protrusion is maintained in sliding abutment with the projection 742B at a position between the initial position and the extended position.

[0216] In the present disclosure, the cleaning assembly 600 may include a housing assembly 610 , a second driving assembly 620 , a cleaning component 630 , and other components.

[0217] The shell component 610 is rotatably disposed on the shell component 100. Specifically, the shell component 610 is rotatably disposed on the inner bracket 101. Accordingly, the shell component 610 is rotatably disposed relative to the rotation axis of the shell component 100, that is, the cleaning component 600 is rotatably disposed relative to the shell component 100.

[0218] In a preferred embodiment, the cleaning assembly 600 is connected to the driven member 730, so that when the driven member 730 is driven and rotated, the cleaning assembly 600 can rotate together with the driven member 730. More preferably, the driven member 730 can be integrally formed with the housing assembly 610 of the cleaning assembly 600.

[0219] The cleaning member 630 is pivotally mounted on the follower 730 ; in other words, the cleaning member 630 is pivotally mounted on the housing assembly 610 , whereby the cleaning member 630 cleans the surface through frictional contact with the surface.

[0220] Preferably, the second drive component 620 is arranged on the follower 730 (or the second drive component 620 is arranged on the housing component 610) and is connected to the cleaning component 630, for driving the cleaning component 630 to rotate relative to the follower 730. At this time, the rotation axis of the cleaning component 630 is the above-mentioned rotation axis.

[0221] In the present disclosure, the elastic component 800 acts on the cleaning component 600 and the shell component 100; wherein, when the cleaning component 600 is in the extended position, the elastic component 800 generates an elastic force between the cleaning component 600 and the shell component 100 to limit the movement of the cleaning component 600 from the extended position to the initial position relative to the shell component 100.

[0222] Specifically, the elastic component 800 includes a first free end and a second free end opposite to the first free end, the first free end acts on the cleaning component 600, and the second free end acts on the housing component 100. In a preferred embodiment, the elastic component 800 is formed as a torsion spring. The cleaning component 600 and the housing component 100 are slidably connected through a rotating shaft. At this time, the torsion spring is sleeved on the rotating shaft, and accordingly, its first free end acts on the follower 730, and the second free end acts on the housing component 100. As a result, the follower 730 (or the cleaning component 600) of the present disclosure can be affected by the elastic component 800, and the elastic component 800 can make the cleaning component 600 have a tendency to move toward the extended position.

[0223] When the self-propelled surface cleaning robot of the present disclosure is in use, its cleaning assembly 600 can be extended outward, thereby expanding the cleaning range of the surface to be cleaned and improving the cleaning efficiency of the surface to be cleaned. In addition, the provision of the elastic member 800 enables the cleaning assembly 600 to move back to its original position after it contacts an obstacle in the extended position, thereby making the cleaning assembly 600 less susceptible to damage, improving reliability, and extending the service life of the self-propelled surface cleaning robot.

[0224] In a preferred embodiment, the self-moving surface cleaning robot of the present disclosure may include two cleaning assemblies 600, at least one of which is capable of expanding outward. Specifically, in one case, both cleaning assemblies 600 are capable of expanding outward, and accordingly, both cleaning assemblies 600 are capable of being driven by the first drive assembly 700 to achieve outward expansion. In this case, the two cleaning assemblies 600 and the corresponding first drive assembly 700 can be symmetrically arranged. In another case, one of the two cleaning assemblies 600 is capable of expanding outward, and the other is not capable of expanding outward. In this case, the outer shell assembly 610 of the cleaning assembly 600 that is not capable of expanding outward is fixed to the housing assembly 100.

[0225] Figure 20 Schematic diagram of the structure of a cleaning component of a surface cleaning device according to one embodiment of the present disclosure. Figure 21 Schematic diagram of the cross-sectional structure of a cleaning component of a surface cleaning device according to one embodiment of the present disclosure.

[0226] like Figure 20 and Figure 21 As shown, when the surface cleaning device of the present disclosure is in use, its cleaning assembly 600 can be controlled and raised and lowered, thereby, when the cleaning assembly 600 is not in use, it can be raised and left away from the surface to be cleaned. Moreover, by controlling the raising and lowering of the cleaning assembly 600, the positive pressure between the cleaning assembly 600 and the surface to be cleaned can also be controlled.

[0227] The cleaning assembly 600 of the present disclosure may further include: a first driving member 640 , a second driving member 650 , a pneumatic lifting unit 660 , an air inlet and outlet 670 and other components.

[0228] Specifically, the first driving member 640 and the second driving member 650 of the present disclosure can form a driving component for driving the cleaning component 630 to move up and down, and the driving component can be fixed to the housing assembly 610 .

[0229] In a preferred embodiment, the first driving member 640 can be at least partially disposed inside the second driving member 650 , and thus, the first driving member 640 can also be referred to as an inner sleeve, and the second driving member 650 can also be referred to as an outer sleeve.

[0230] like Figure 21 As shown, the first driving member 640 is provided on the housing assembly 610, whereby the vertical position of the first driving member 640 can be limited by the housing assembly 610. In a preferred embodiment, the first driving member 640 can be rotatably supported on the housing assembly 610 via a bearing, whereby the first driving member 640 is configured to be rotatable relative to the housing assembly 610 and can also be limited in its axial position by the housing assembly 610.

[0231] At least a portion of the second driving member 650 is located inside the first driving member 640, and the first driving member 640 and the second driving member 650 are relatively movable; thus, the second driving member 650 of the present disclosure can approach or move away from the housing assembly 610. Specifically, when the second driving member 650 moves downward, it can move away from the housing assembly 610, and when the second driving member 650 moves upward, it can move toward the housing assembly 610.

[0232] At this time, since the cleaning member 630 can be fixed to the second driving member 650, the distance between the cleaning member 630 and the surface to be cleaned can change accordingly as the second driving member 650 is raised or lowered. Moreover, even if the cleaning member 630 contacts the surface to be cleaned, the normal pressure between the cleaning member 630 and the surface to be cleaned can also change.

[0233] In the present disclosure, the pneumatic lifting unit 660 is driven by the air pressure of the air flow, so as to generate relative movement between the first driving member 640 and the second driving member 650. In addition, the air inlet and outlet 670 are provided on the housing assembly 610, and the air inlet and outlet 670 are in fluid communication with the pneumatic lifting unit 660 via an air flow channel.

[0234] The structures of the first driving member 640 and the second driving member 650 will be described in detail below with reference to the accompanying drawings.

[0235] Figure 22 Schematic diagram of the assembly relationship between the first driving member and the second driving member according to one embodiment of the present disclosure. Figure 23 Schematic diagram of an exploded structure between a first driving member and a second driving member according to one embodiment of the present disclosure. Figure 24 2 is a schematic structural diagram of a second driving member according to an embodiment of the present disclosure.

[0236] exist Figure 21 In the structure shown, the second driving member 650 is in the descending position, that is, the second driving member 650 is at the maximum position in the descending direction. Figure 22 As shown in FIG. 6 , the second driving member 650 is in an ascending position, that is, the second driving member 650 is at the maximum position in the ascending direction.

[0237] Specifically, the first driving member 640 of the present disclosure can be formed into a cylindrical shape, the upper end of which can be restricted in its axial position by the housing assembly 610 , and the upper end of the first driving member 640 can also rotate freely relative to the housing assembly 610 .

[0238] The second driving member 650 can be formed into a cylindrical shape or an inverted cone shape. Moreover, the inner circumference of the second driving member 650 can be formed into a cylindrical surface, thereby enabling the first driving member 640 and the second driving member 650 to fit tightly together, effectively preventing the first driving member 640 and the second driving member 650 from separating and also preventing shaking between the first driving member 640 and the second driving member 650.

[0239] In the present disclosure, the first driving member 640 and the second driving member 650 are concentrically arranged, so that the first driving member 640 and the second driving member 650 have the same rotation axis, so that the first driving member 640 drives the second driving member 650 to rotate.

[0240] In the present disclosure, the cleaning assembly 600 may further include a position-limiting guide structure located between the first driving member 640 and the second driving member 650 to limit the relative circumferential rotation of the first driving member 640 and the second driving member 650 and to allow relative axial movement of the first driving member 640 and the second driving member 650. Specifically, the position-limiting guide structure of the present disclosure may be formed jointly by a structure formed on the first driving member 640 and a structure formed on the second driving member 650.

[0241] In a specific embodiment, the limiting guide structure includes: a positioning guide groove 641 formed in the circumference of the first driving member 640 and extending along at least a portion of the axial direction of the first driving member 640, and / or a positioning guide rib 651 formed in the interior of the second driving member 650 and extending along at least a portion of the axial direction of the second driving member 650. Thus, through the cooperation of the positioning guide groove 641 and the positioning guide rib 651, the relative circumferential rotation of the first driving member 640 and the second driving member 650 is limited, and the relative axial movement of the first driving member 640 and the second driving member 650 is allowed.

[0242] Specifically, the positioning guide groove 641 is evenly arranged along the circumference of the first driving member 640, and extends axially (i.e., upwardly) from the free end (i.e., the lower end) of the first driving member 640. Therefore, when the second driving member 650 is at the maximum position in the descending direction, the upper end portion of the positioning guide rib 651 can be inserted into the positioning guide groove 641, and as the second driving member 650 moves upward, the size of the positioning guide rib 651 inserted into the positioning guide groove 641 will become larger. Therefore, during the entire lifting stroke of the second driving member 650, the positioning guide rib 651 will not detach from the positioning guide groove 641, accordingly, ensuring stable rotation transmission between the first driving member 640 and the second driving member 650.

[0243] In a preferred embodiment, the first driving member 640 and the second driving member 650 are connected together by snapping, thereby facilitating assembly, disassembly and maintenance of the first driving member 640 and the second driving member 650 .

[0244] Specifically, the cleaning assembly 600 further includes a clamping structure located between the first driving member 640 and the second driving member 650 to prevent the first driving member 640 and the second driving member 650 from axially disengaging. Specifically, the clamping structure of the present disclosure can be formed by a structure formed on the first driving member 640 and a structure formed on the second driving member 650.

[0245] In a preferred embodiment, the snap-fit ​​structure includes: an outer ring 642 formed at the free end of the first driving member 640 and an inner ring 652 formed at the free end of the second driving member 650, and the inner diameter of the inner ring 652 is smaller than the outer diameter of the outer ring 642. Thus, the arrangement of the inner ring 652 and the outer ring 642 effectively prevents the first driving member 640 and the second driving member 650 from disengaging.

[0246] The outer ring 642 is separated by the positioning guide groove 641 in the circumferential direction of the free end so that the outer ring 642 has radial elastic force as a whole. As a result, the first driving member 640 and the second driving member 650 can be in pressure contact, thereby effectively avoiding the shaking of the second driving member 650 caused by the gap between the first driving member 640 and the second driving member 650, thereby improving the movement stability of the cleaning assembly 600.

[0247] More preferably, if Figure 23 As shown, the inner ring 652 is separated by the groove structure 653 of the second driving member 650 in the circumferential direction of the free end of the second driving member 650. Therefore, the inner ring 652 of the second driving member 650 also has radial elastic force, thereby improving the tightness of the fit between the first driving member 640 and the second driving member 650.

[0248] The groove structure 653 and the positioning guide rib 651 have the same circumferential position on the second driving member 650. Therefore, during installation, it is convenient to observe the positions of the positioning guide groove 641 and the positioning guide rib 651, so that the first driving member 640 and the second driving member 650 can be easily assembled together.

[0249] Refer again Figure 21In the present disclosure, the first end of the pneumatic lifting unit 660 is fixedly connected to the first driving member 640, and the second end of the pneumatic lifting unit 660 is in abutting connection with the second driving member 650. Thus, when the size of the pneumatic lifting unit 660 increases, it can drive the second driving member 650 to move downward. In addition, when the size of the pneumatic lifting unit 660 decreases, the second driving member 650 can move upward under the action of the return member 690.

[0250] In one specific embodiment, the pneumatic lifting unit 660 includes a pneumatic actuator connected to the first driving member 640 and / or the second driving member 650. The pneumatic actuator can be extended or retracted in the direction of relative movement of the first driving member 640 and the second driving member 650 under the influence of air flow. More specifically, the pneumatic actuator can include an airbag in fluid communication with the air inlet and outlet 670. The portion of the pipeline connecting the air inlet and outlet 670 and the airbag can be a hollow shaft.

[0251] In the present disclosure, the cleaning component 600 also includes: a rotary seal 680, which is arranged on the outer shell component 610 of the cleaning component 600, and the air inlet and outlet 670 are located on the rotary seal 680. The rotary seal 680 is configured to rotatably maintain the air pressure seal between the air inlet and outlet 670 and the pneumatic lifting unit 660. Therefore, when high-pressure gas is provided to the air inlet and outlet 670, the high-pressure gas will not leak outward, thereby improving the working efficiency of the air pump.

[0252] Furthermore, the cleaning assembly 600 may further include a reset member 690, which is located between the first driving member 640 and the second driving member 650. Specifically, the reset member 690 may be a reset spring, which is sleeved on the first driving member 640 and located between the first driving member 640 and the second driving member 650, with one end of the reset spring resting on the inner ring 652 and the other end of the reset spring resting on the outer ring 642. The elastic force of the reset spring causes the second driving member 650 to have an upward movement trend.

[0253] The second drive assembly 620 of the cleaning assembly 600 of the present disclosure can be operatively configured to transmit driving force to the first drive member 640 and / or the second drive member 650. Specifically, the second drive assembly 620 of the present disclosure can be connected to the first drive member 640 via a gear to transmit rotational force to the first drive member 640 and drive the first drive member 640 to rotate. At this time, the first drive member 640 drives the second drive member 650 to rotate via a limiting guide structure, thereby further enabling the cleaning component 630 to rotate.

[0254] The second driving member 650 includes a connecting portion. Specifically, the lower end of the second driving member 650 is formed as the connecting portion. At this time, the cleaning component 630 can be detachably connected to the connecting portion by magnetic attraction, thereby facilitating the installation, removal and maintenance of the cleaning component 630.

[0255] The self-moving surface cleaning robot disclosed in the present invention may further include a power assembly, which may be an air pump arranged on the shell assembly 100, and the air pump is connected to the air inlet and outlet through an air flow channel. Thus, when the power assembly receives a control signal, it can generate high-pressure gas, and the high-pressure gas can enter the air inlet and outlet after flowing through the valve assembly. Furthermore, the high-pressure gas can enter the airbag and cause the airbag to expand, and accordingly, drive the second driving member 650 to move downward.

[0256] More preferably, the self-moving surface cleaning robot disclosed in the present invention may further include a pressure reliever, which is connected to the air pump and the air inlet and outlet through an air flow channel. When the second driving member 650 needs to rise, the pressure reliever can be opened so that the gas in the airbag can be discharged through the pressure reliever. At this time, the size of the airbag is reduced, and then, under the action of the return spring, the second driving member 650 can move upward.

[0257] 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.

[0258] 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.

[0259] 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 cleaning component, characterized in that: include: Air inlet and outlet, the air inlet and outlet are used for air flow in and out; a first driving member; a second driving member, wherein at least a portion of the first driving member is located inside the second driving member, and the first driving member and the second driving member are capable of relative movement; as well as A pneumatic lifting unit is driven by the air pressure of the air flow passing through the air inlet and outlet to promote relative movement between the first driving member and the second driving member.

2. The cleaning assembly according to claim 1, wherein: The first end of the pneumatic lifting unit is fixedly connected to the first driving member.

3. The cleaning assembly according to claim 2, characterized in that The second end of the pneumatic lifting unit is in abutting connection with the second driving member.

4. The cleaning assembly according to claim 1, wherein: The pneumatic lifting unit includes a pneumatic actuator connected to the first drive member and / or the second drive member. The pneumatic actuator can extend or retract along the direction of relative movement of the first drive member and the second drive member under the action of air flow.

5. The cleaning assembly according to claim 4, characterized in that The pneumatic actuation element includes an air bag in fluid communication with the air inlet and outlet ports.

6. The cleaning assembly according to claim 1, wherein: Also includes: A rotary seal is provided on the housing assembly of the cleaning assembly, the air inlet and outlet are located on the rotary seal, and the rotary seal is configured to rotatably maintain an air pressure seal between the air inlet and outlet and the pneumatic lifting unit.

7. The cleaning assembly according to claim 1, wherein: A reset member is included, and the reset member is located between the first driving member and the second driving member.

8. The cleaning assembly according to claim 1, wherein: The first driving member and the second driving member are connected together by a snap-fitting manner.

9. The cleaning assembly according to any one of claims 1 to 8, characterized in that: The first driving member and the second driving member are both cylindrical in shape and are concentrically arranged; Optionally, the first driving member is an inner sleeve, and the second driving member is an outer sleeve; Optionally, it also includes: a position limiting guide structure, the position limiting guide structure being located between the first driving member and the second driving member to limit the relative circumferential rotation of the first driving member and the second driving member and to allow the relative axial movement of the first driving member and the second driving member; Optionally, the limiting guide structure includes: a positioning guide groove formed in the circumference of the first driving member and extending along at least a portion of the axial direction of the first driving member, and / or a positioning guide rib formed inside the second driving member and extending along at least a portion of the axial direction of the second driving member; Optionally, the positioning guide grooves are evenly arranged along the circumference of the first driving member and extend axially from the free end of the first driving member; Optionally, it also includes: a clamping structure, located between the first driving member and the second driving member, for preventing the first driving member and the second driving member from being separated in the axial direction; Optionally, the clamping structure includes: an outer ring formed on the free end of the first driving member, the outer ring being spaced apart by the positioning guide groove in the circumferential direction of the free end so that the outer ring as a whole has radial elastic force; Optionally, the clamping structure includes: an inner ring formed at the free end of the second driving member, the inner diameter of the inner ring being smaller than the outer diameter of the outer ring; Optionally, the inner ring is separated by a groove structure of the second driving member in the circumferential direction of the free end of the second driving member; Optionally, the groove structure and the positioning guide rib have the same circumferential position on the second driving member; Optionally, it also includes: a second drive assembly operable to transmit a driving force to the first drive member and / or the second drive member; Optionally, the second drive assembly is connected to the first drive member to transmit a rotational force to the first drive member; Optionally, the first driving member drives the second driving member to rotate via a limiting guide structure; Optionally, the second driving member includes a connecting portion, and the connecting portion is used to detachably connect with the cleaning component.

10. A self-propelled surface cleaning robot, characterized in that: The cleaning component comprises the cleaning component according to any one of claims 1 to 9.

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