Surface cleaning device and cleaning system

Abstract

The utility model provides a surface cleaning device and a cleaning system, relates to the technical field of cleaning, and is used for solving the technical problem that pollutants on a to-be-cleaned surface are easily adhered to a walking assembly. The surface cleaning device comprises a device body, an adsorption assembly arranged on the device body, the walking assembly and a liquid scraping piece; the adsorption assembly is used for adsorbing the surface cleaning device on a to-be-cleaned surface; the walking assembly is arranged on the device body, and the device body can walk on the surface to be cleaned through the walking assembly; the liquid scraping piece is at least arranged on the front side of the walking assembly in the walking direction of the device body and detachably connected with the device body, and part of the structure of the liquid scraping piece protrudes out of the bottom wall of the device body. When the device body walks along the to-be-cleaned surface, the liquid scraping piece abuts against the to-be-cleaned surface in a sealed mode and moves along the to-be-cleaned surface, so that pollutants on the to-be-cleaned surface are prevented from making contact with the walking assembly. The device is used for preventing the walking assembly from making contact with pollutants on the to-be-cleaned surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a surface cleaning device and a cleaning system. BACKGROUND

[0002] The window cleaning robot mainly relies on the vacuum pump or fan device at the bottom of the robot to firmly adsorb on the glass, and then automatically detects the corner distance of the window, plans the window cleaning path with the help of artificial intelligence, and returns to the initial placement position after cleaning, so as to facilitate the user to take it down.

[0003] In the related art, the window cleaning robot comprises a robot body and a negative pressure device arranged on the robot body, the negative pressure device is used for adsorbing the window cleaning robot on the glass surface, the robot body has a track structure, and the track structure is partially exposed to the bottom of the robot body, so that the track structure walks on the glass surface, thereby driving the window cleaning robot to walk on the glass surface, and the cleaning cloth arranged at the bottom of the robot body cleans the glass surface.

[0004] However, when there is a contaminant on the glass surface, the track structure walks on the glass surface and is easy to stick to the track structure, on the one hand, affecting the normal walking of the track structure, and on the other hand, after the track structure is contaminated, it is easy to cause secondary pollution to the glass surface when walking on the glass surface. Content of the utility model

[0005] In view of the above problems, the embodiments of the present application provide a surface cleaning device and a cleaning system for avoiding the problem that the walking assembly contacts the contaminant on the surface to be cleaned when walking on the surface to be cleaned, thereby avoiding affecting the normal walking of the walking assembly and the secondary pollution of the walking assembly to the surface to be cleaned, and further improving the cleaning effect on the surface to be cleaned.

[0006] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the embodiments of the present application provides a surface cleaning device, comprising: a device body and an adsorption assembly arranged on the device body, the adsorption assembly is used for adsorbing the surface cleaning device on the surface to be cleaned; characterized in that, the surface cleaning device further comprises:

[0008] A walking assembly is arranged on the device body, and the device body can walk on the surface to be cleaned through the walking assembly;

[0009] A liquid scraping member is arranged at least on the front side of the walking assembly and detachably connected with the device body along the walking direction of the device body, and part of the structure of the liquid scraping member protrudes outward from the bottom wall of the device body along the width of the device body;

[0010] When the device body moves along the surface to be cleaned, the liquid scraping member seals against and moves along the surface to be cleaned to block the contaminants on the surface to be cleaned from contacting the walking assembly.

[0011] In some optional embodiments, the liquid scraping member is deformable at least towards one end of the surface to be cleaned; and / or,

[0012] The dimension of the liquid scraping member in the width direction of the device body is not less than the dimension of the walking assembly in the width direction of the device body.

[0013] In some optional embodiments, when the device body moves along the surface to be cleaned, the portion of the liquid scraping member protruding out of the bottom wall of the device body bends towards the side of the walking assembly and seals against the surface to be cleaned to isolate the contaminants from the side of the liquid scraping member away from the walking assembly.

[0014] In some optional embodiments, the front side and the rear side of the walking assembly are both provided with the liquid scraping member along the walking direction of the walking assembly, and the two liquid scraping members form a contaminant isolation area, and the liquid scraping member is configured to isolate the contaminants from the contaminant isolation area when the surface cleaning device moves forward or backward.

[0015] In some optional embodiments, the device body comprises an upper cover and a bottom plate below the upper cover, the upper cover and the bottom plate jointly form a receiving cavity, the bottom plate is provided with a clearance, the walking assembly and the liquid scraping member are both installed in the receiving cavity, and part of the structure of the walking assembly and the liquid scraping member protrudes out of the bottom plate through the clearance.

[0016] In some optional embodiments, the liquid scraping member and the port wall of the clearance have a gap therebetween along the walking direction of the walking assembly.

[0017] In some optional embodiments, the gap between the liquid scraping member and the port wall of the clearance is greater than the deformation amount of the liquid scraping member protruding out of the bottom plate along the walking direction of the walking assembly.

[0018] In some optional embodiments, the end of the liquid scraping member is provided with a first fixing part, the receiving cavity is provided with a second fixing part, and the first fixing part and the second fixing part are detachably connected.

[0019] In some optional embodiments, at least one of the following is included:

[0020] The first fixing part is clamped on the second fixing part;

[0021] The first fixing part is threadedly connected with the second fixing part.

[0022] The first fixing part is magnetically attracted to the second fixing part.

[0023] In some optional embodiments, at least one of the hardness and the thickness of the liquid scraping member decreases in sequence from a direction away from the surface to be cleaned to a direction close to the surface to be cleaned, and the deformability increases in sequence.

[0024] In some optional embodiments, the liquid scraping member comprises a first part and a second part connected in sequence, the first part protrudes outwardly from the bottom wall of the device body, and the second part is located inside the device body, the width dimension of the first part is smaller than that of the second part, and the connection between the side walls on both sides of the second part and the side walls on both sides of the first part has a stress-resistant structure in the width direction of the liquid scraping member.

[0025] In some optional embodiments, the stress-resistant structure is an arc-shaped structure.

[0026] In some optional embodiments, the liquid scraping member is a liquid scraping plate.

[0027] In some optional embodiments, the surface cleaning device further comprises a water tank and a floating member, the water tank is arranged on the device body, the water tank has a liquid containing cavity and a visible window, and the floating member is arranged in the liquid containing cavity, the floating member is configured to float up and down in the liquid containing cavity with the change of the liquid level in the liquid containing cavity, and the visible window is used to observe the position of the floating member in the liquid containing cavity.

[0028] The second aspect of the embodiments of the present application provides a cleaning system comprising a base station and the surface cleaning device provided in the first aspect.

[0029] The third aspect of the embodiments of the present application provides a surface cleaning device comprising a device body and an adsorption assembly arranged on the device body, the adsorption assembly is used to adsorb the surface cleaning device to a surface to be cleaned, and the surface cleaning device further comprises:

[0030] a water tank arranged on the device body, the water tank has a liquid containing cavity and a visible window;

[0031] a floating member arranged in the liquid containing cavity, the floating member is configured to float up and down in the liquid containing cavity with the change of the liquid level in the liquid containing cavity, and the visible window is used to observe the position of the floating member in the liquid containing cavity.

[0032] In some alternative embodiments, the liquid container has a floating space in communication with the liquid container, the cross-sectional profile of the floating space matches the cross-sectional profile of the floating member, and the floating member is located in the floating space and floats up and down with the change of the liquid level in the floating space.

[0033] In some alternative embodiments, the floating member has a dimension in a first direction greater than a dimension in a second direction, wherein the first direction is consistent with the height direction of the liquid container, and the second direction has an included angle with the first direction.

[0034] In some alternative embodiments, the dimension of the floating member in the first direction is less than or equal to 15 mm, and the maximum width of the floating member in the second direction is less than or equal to 5 mm.

[0035] In some alternative embodiments, the dimension of the top of the floating space in the second direction is greater than the dimension of the bottom of the floating space in the second direction.

[0036] In some alternative embodiments, the gap between the outer profile of the floating member and the side wall of the floating space is 0.2 mm to 0.3 mm.

[0037] In some alternative embodiments, the surface of the floating member has a hydrophobic film configured to overcome the surface tension of the liquid on the surface of the floating member.

[0038] In some alternative embodiments, the weight of the floating member is 0.2 g to 0.3 g.

[0039] In some alternative embodiments, the floating member is a floating ball.

[0040] In some alternative embodiments, the visual window is arranged at a position corresponding to the floating member at the top of the water tank.

[0041] In some alternative embodiments, the top of the water tank has a water inlet, and a closable water inlet cover is arranged on the water inlet, the water inlet cover is connected to the water tank through a guide rod, the guide rod can move in the vertical direction relative to the water tank to enable the water inlet cover to be buckled on or removed from the water inlet.

[0042] In some alternative embodiments, the front side and the rear side of the device body are both provided with water spraying members in communication with the water tank, and the water spraying members are configured to spray water to the surface to be cleaned.

[0043] The fourth aspect of the embodiments of the present application provides a cleaning system, which comprises a base station and the surface cleaning device provided in the third aspect.

[0044] In the surface cleaning device provided by the first aspect of the embodiments of the present application, the liquid scraping member is arranged at least on the front side of the walking assembly, so that when the surface cleaning device is advancing, the liquid scraping member first scrapes the contaminants and sewage on the surface to be cleaned, and the scraped contaminants and sewage are isolated on the side of the liquid scraping member away from the walking assembly, so as to avoid the contaminants or sewage on the surface to be cleaned from being in contact with the walking assembly and adhering to the walking assembly, avoid the contaminants from polluting the walking assembly and affecting the normal walking of the walking assembly, thereby improving the walking comfort of the walking assembly and avoiding the secondary pollution of the walking assembly to the surface to be cleaned, and further improving the cleaning effect on the surface to be cleaned.

[0045] The cleaning system provided by the second aspect of the embodiments of the present application has the same beneficial effects as the surface cleaning device provided by the first aspect described above, and will not be described here.

[0046] In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features described above, other technical problems solved by the surface cleaning device and the cleaning system provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0048] Figure 1 A structural schematic diagram of the surface cleaning device provided by the embodiments of the present application;

[0049] Figure 2 Another structural schematic diagram of the surface cleaning device provided by the embodiments of the present application from another perspective;

[0050] Figure 3 A schematic diagram of the surface cleaning device provided by the embodiments of the present application from a bottom perspective;

[0051] Figure 4 A structural schematic diagram of the anti-collision member and the corner assembly in the surface cleaning device provided by the embodiments of the present application;

[0052] Figure 5 A partial schematic diagram in Figure 4

[0053] ​Figure 6 A bottom view schematic diagram of a structure of the corner assembly provided by the embodiment of the present application;

[0054] Figure 7 A schematic diagram of another view of the corner assembly provided by the embodiment of the present application;

[0055] Figure 8 A sectional view schematic diagram of a structure of the corner assembly provided by the embodiment of the present application;

[0056] Figure 9 An exploded schematic diagram of the corner assembly provided by the embodiment of the present application;

[0057] Figure 10 A schematic diagram of a structure of the fixing member in the corner assembly provided by the embodiment of the present application;

[0058] Figure 11 A schematic diagram of a structure of the rotating member in the corner assembly provided by the embodiment of the present application;

[0059] Figure 12 A sectional view schematic diagram of the surface cleaning device provided by the embodiment of the present application;

[0060] Figure 13 A top view schematic diagram of an internal structure of the surface cleaning device provided by the embodiment of the present application;

[0061] Figure 14 A partial schematic diagram of a state of the surface cleaning device provided by the embodiment of the present application; Figure 12

[0062] A schematic diagram of a structure of the liquid scraping member in the surface cleaning device provided by the embodiment of the present application; Figure 15

[0063] A schematic diagram of a state of the water tank provided by the embodiment of the present application; Figure 16

[0064] A top view schematic diagram of the water tank provided by the embodiment of the present application; Figure 17

[0065] A schematic diagram of another view of the water tank provided by the embodiment of the present application; Figure 18

[0066] A sectional view schematic diagram of the water tank provided by the embodiment of the present application along a horizontal direction; Figure 19

[0067] A sectional view schematic diagram of the water tank provided by the embodiment of the present application along a vertical direction. Figure 20 Explanation of reference signs:

[0068]

[0069] ​100 - surface cleaning device;

[0070] 110 - device body; 111 - upper cover; 112 - bottom plate; 113 - avoiding gap;

[0071] 120 - anti-collision member; 121 - first anti-collision part; 1211 - first pushing part; 122 - second anti-collision part; 1221 - second pushing part; 123 - corner area;

[0072] 130 - corner assembly; 131 - fixing member; 1311 - first rotation matching part; 1312 - first clamping part;

[0073] 132 - rotating member; 1321 - second rotation matching part; 1322 - second clamping part; 1323 - contact part;

[0074] 133 - elastic member; 134 - boundary detecting member; 135 - clamping member; 136 - guiding member; 137 - limiting screw;

[0075] 138 - hair planting member;

[0076] 141 - resetting member; 142 - second resetting member;

[0077] 150 - collision sensing member; 151 - first collision sensing member;

[0078] 160 - corner cleaning member; 161 - cleaning part;

[0079] 170 - liquid scraping member; 171 - first fixing part; 172 - first part; 173 - second part; 174 - stress resisting structure;

[0080] 180 - water tank; 181 - water injection opening; 182 - floating space; 183 - floating member; 190 - water injection cover;

[0081] 200 - walking assembly; 210 - track; 220 - driving wheel; 230 - driven wheel;

[0082] 300 - adsorption assembly. DETAILED DESCRIPTION

[0083] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0084] The embodiments of the present application provide a surface cleaning device, which includes but is not limited to a window cleaning robot, for cleaning a glass surface such as a window, which will be described below by taking the surface cleaning device as a window cleaning robot as an example.

[0085] Please refer to Figures 1 to 3 The surface cleaning device 100 includes a device body 110 and an adsorption assembly 300 arranged on the device body 110, and the adsorption assembly 300 is used for adsorbing the device body 110 to the surface of the glass, wherein the adsorption assembly 300 includes but is not limited to a vacuum pump or a negative pressure fan device.

[0086] The surface cleaning device 100 further includes a bottom plate 112, a walking assembly 200 and a cleaning cloth, wherein the cleaning cloth is arranged at the bottom end (for example, the side facing the glass surface) of the bottom plate 112, and the edge of the cleaning cloth coincides with the edge of the bottom plate 112, and the walking assembly 200 can be arranged on the front and rear sides or the left and right sides of the bottom plate 112, so that the surface cleaning device 100 can walk on the glass surface through the walking assembly 200 to clean the glass surface through the cleaning cloth. The walking assembly 200 includes but is not limited to a track structure.

[0087] Please continue to refer to Figures 1 to 3 The surface cleaning device 100 further includes a bumper 120, which is a bumper plate in an example, and the bumper 120 is arranged on the outer circumferential side of the device body 110, especially on the outer circumferential side of the bottom plate 112, that is, the bumper plate is in a ring structure and is movably connected with the device body 110, so that the bumper 120 can move along the direction perpendicular to the side wall of the bottom plate device body 110 relative to the device body 110, so that when the surface cleaning device 100 encounters an obstacle, the bumper 120 will retract to one side of the device body 110, so that the bumper 120 can protect the device body 110.

[0088] In addition, the surface cleaning device 100 further includes a collision sensing member 150, which is a collision sensor for example, and the collision sensor is arranged between the bumper 120 and the device body 110 and on one of the bumper 120 and the device body 110, so that when the bumper 120 encounters an obstacle, the bumper 120 retracts to one side of the device body 110, and the collision sensor can be triggered to send a collision signal to the controller of the surface cleaning device 100, and the controller determines that the surface cleaning device 100 is collided according to the collision signal and controls the surface cleaning device 100 to stop or turn.

[0089] Therefore, if the glass has a frame structure, the collision sensor can be used to detect whether the surface cleaning device 100 reaches the frame position of the glass; or the collision sensor is used to detect whether the surface cleaning device 100 collides with an obstacle.

[0090] In some embodiments, referring to Figures 1 to 5 The surface cleaning device 100 further includes a corner assembly 130, which is arranged at a corner position of the surface cleaning device 100, for example, the surface cleaning device 100 has a rectangular structure, and the intersection of two adjacent sides of the rectangle is a corner position; at least part of the corner assembly 130 protrudes outwardly from the outer contour of the bottom plate 112.

[0091] Referring to Figures 6 to 10 The corner assembly 130 includes a fixing member 131 and a boundary detection member 134, the fixing member 131 is connected with the anti-collision member 120, wherein the fixing member 131 has an accommodation space with an open bottom end, and the boundary detection member 134 is located in the accommodation space and can protrude out of the accommodation space through the open bottom end or be accommodated inside the accommodation space.

[0092] In addition, the corner assembly 130 further includes a resilient member 133, which includes but is not limited to a spring, and the boundary detection member 134 can be a boundary detection ball; the resilient member 133 is arranged between the top of the boundary detection member 134 and the top wall of the accommodation space, so that the boundary detection member 134 is movably arranged on the fixing member 131 by the resilient member 133, and the boundary detection member 134 can protrude outwardly from the bottom end of the bottom plate 112 under the action of the resilient member 133 and abut against the glass surface.

[0093] In some embodiments, the corner assembly 130 further includes a rotating member 132, which includes but is not limited to a roller, and the roller is rotatably arranged on the fixing member 131, and at least part of the roller protrudes outwardly from the outer contour of the anti-collision member 120; when the surface cleaning device 100 moves along the edge of the glass, the roller is used to rollingly contact the glass frame to reduce the friction between the roller and the glass frame.

[0094] In addition, the boundary detection member 134 is located at least one side of the roller, or the boundary detection member 134 is located in the roller, for example, in Figures 2 to 5 The boundary detection member 134 is arranged in the roller and protrudes outwardly from the bottom end of the roller to abut against the glass surface under the elastic force of the resilient member 133, that is, the roller is arranged around the outer circumferential side of the boundary detection member 134, and the boundary detection member 134 can move up and down relative to the roller in the axial direction of the roller.

[0095] When the glass is frameless, if the surface cleaning device 100 moves to the position where the boundary detection member 134 is located outside the glass, the boundary detection member 134 moves downward to protrude from the bottom plate 112 under the elastic force of the elastic member 133, at this time, the elastic member 133 is in a free elongation state, the boundary detection member 134 is disengaged from the surface of the glass and is triggered, and sends a signal to the controller of the surface cleaning device 100, and the controller determines the position change of the surface cleaning device 100 according to the signal to prevent the risk of falling of the surface cleaning device 100 from the edge.

[0096] When the glass is frameless, if the surface cleaning device 100 moves to the position where the boundary detection member 134 is located outside the glass, the boundary detection member 134 moves downward to protrude from the bottom plate 112 under the elastic force of the elastic member 133, at this time, the elastic member 133 is in a free elongation state, the boundary detection member 134 is disengaged from the surface of the glass and is triggered, and sends a signal to the controller of the surface cleaning device 100, and the controller determines the position change of the surface cleaning device 100 according to the signal to prevent the risk of falling of the surface cleaning device 100 from the edge.

[0097] In order to reduce the friction between the boundary detection member 134 and the surface of the glass, the boundary detection member 134 is a boundary detection ball which can rotate around its own axis, so that when the boundary detection ball is in abutment with the surface of the glass, the boundary detection ball can also rotate around its own axis, thereby reducing the friction between the boundary detection ball and the surface of the glass.

[0098] In order to improve the accuracy of the up-down movement route of the boundary detection member 134 in the accommodation space, in the embodiment of the present application, please refer to Figure 8 and Figure 9As shown, the corner assembly 130 further comprises a clamping member 135 and a guide member 136, the clamping member 135 is arranged at the top of the boundary detection member 134 and is used to clamp the boundary detection member 134, and the boundary detection member 134 can rotate around its own axis relative to the clamping member 135, the guide member 136 is arranged at the top of the boundary detection member 134 and is connected with the clamping member 135, and the guide member 136 penetrates through the top wall of the accommodating space and is movably connected with the fixing member 131, so that the guide member 136 can drive the boundary detection member 134 to move up and down in the accommodating space relative to the fixing member 131, wherein the end of the guide member 136 close to the boundary detection member 134 is provided with a limiting portion, and the elastic member 133 is located between the limiting portion and the top wall of the accommodating space, so that the elastic member 133 can drive the boundary detection member 134 to move to the side away from the fixing member 131 by its own elastic force, so that at least part of the boundary detection member 134 extends out of the bottom end of the bottom plate 112 of the surface cleaning device 100; the boundary detection member 134 can also move to the side close to the fixing member 131 by pushing the guide member 136 under the action of external force, so that at least part of the structure of the boundary detection member 134 can be retracted into the accommodating space.

[0099] For example, the guide member 136 can be connected with the fixing member 131 through a limiting screw 137, and the guide member 136 can move up and down in the direction perpendicular to the glass surface relative to the fixing member 131 through the limiting screw 137.

[0100] In addition, the side wall of the boundary detection member 134 can be provided with a trigger switch, when the boundary detection member 134 moves out of the outer contour of the frameless glass, the boundary detection member 134 moves downward under the action of the elastic force of the elastic member 133, the trigger switch of the boundary detection member 134 is triggered, so that the boundary detection member 134 sends a signal to the controller of the surface cleaning device 100, so as to determine that the surface cleaning device 100 moves to the position where the glass is close to the edge, at this time, the elastic member 133 is in a free elongation state; when the boundary detection member 134 moves with the surface cleaning device 100 to the glass surface, the boundary detection member 134 moves upward under the pushing action of the glass, and the boundary detection member 134 abuts against the surface of the glass, at this time, the elastic member 133 is in a compression state, and the trigger part on the boundary detection member 134 is not triggered.

[0101] In order to improve the cleaning efficiency of the surface cleaning device 100, the walking speed of the surface cleaning device 100 is constantly improved. However, as the walking speed of the surface cleaning device 100 is improved, when the part of the corner assembly 130 protruding outward from the bumper 120 collides with the frame of the glass, the impact force is large. The corner assembly 130 is relatively fixed with the bumper 120, so that the bumper 120 is easily damaged by impact, especially at the position of the bumper 120 close to the corner assembly 130, which is severely deformed and damaged. In addition, the bumper 120 has a large volume, and the bumper 120 is not easy to replace and has a high replacement cost after being damaged.

[0102] To solve the above problems, in the embodiments of the present application, please refer to Figure 4 and Figure 5 As shown, by movably arranging the corner assembly 130 on the bumper, and at least part of the corner assembly 130 protruding outward from the outer contour of the bottom plate 112, that is, at least part of the structure of the corner assembly 130 forms the outermost contour of the surface cleaning device 100. When the corner assembly 130 is not impacted, at least part of the corner assembly 130 protrudes outward from the outer edge of the bumper 120. When the corner assembly 130 is impacted, the corner assembly 130 moves relative to the bumper 120, and after the corner assembly 130 moves to contact the bumper 120, the bumper 120 moves relative to the device body 110.

[0103] It should be noted that the state of the corner assembly 130 being impacted refers to the state of the corner assembly 130 starting to move relative to the bumper 120.

[0104] Therefore, in the embodiments of the present application, the corner assembly 130 is movably arranged on the bumper 120, so that the corner assembly 130 moves a certain distance before driving the bumper 120 to move when impacted. Compared with the corner assembly 130 being fixedly connected with the bumper 120 and directly driving the bumper 120 to move under the impact force, the present application can buffer the impact force to reduce the impact force on the bumper 120, and avoid the problem of the bumper 120 being deformed or even damaged by impact.

[0105] In addition, the corner assembly 130 can be detachably connected with the bumper 120, so as to be replaced when damaged by impact. Since the volume of the corner assembly 130 relative to the bumper 120 is small, the corner assembly 130 is easy to replace.

[0106] In some embodiments, please refer to Figure 4 and Figure 5As shown, the anti-collision member 120 comprises a first anti-collision part 121 and a second anti-collision part 122 connected with each other, the first anti-collision part 121 and the second anti-collision part 122 intersect and are adjacent to each other, a corner area 123 is formed between the first anti-collision part 121 and the second anti-collision part 122, and the corner assembly 130 is movably arranged in the corner area 123; when the corner assembly 130 is not impacted, at least part of the corner assembly 130 protrudes outwardly from the outer edge of the first anti-collision part 121 and the outer edge of the second anti-collision part 122; when the corner assembly 130 is impacted, the corner assembly 130 moves in the corner area 123; when the corner assembly 130 contacts the first anti-collision part 121, the first anti-collision part 121 is driven to move, thereby driving the second anti-collision part 122 to move; or, when the corner assembly 130 contacts the second anti-collision part 122, the second anti-collision part 122 is driven to move, thereby driving the first anti-collision part 121 to move.

[0107] It should be noted that the anti-collision member 120 comprises a plurality of anti-collision parts, for the convenience of description, one of any two anti-collision parts intersecting and adjacent to each other is denoted as a first anti-collision part, and the other of the two anti-collision parts is denoted as a second anti-collision part, wherein "first, second, …" only for the convenience of description, and do not have other special meanings.

[0108] In addition, the bottom of each corner of the anti-collision member 120 has a notch, that is, the corner of the anti-collision member 120 refers to the area where the first anti-collision part 121 and the second anti-collision part 122 intersect and are adjacent to each other, and the notch forms the corner area 123. It can be understood that the notch is used to avoid the corner assembly 130, so that the corner assembly 130 is movably arranged at the corner area 123, so that the corner assembly 130 can move in the corner area 123 when impacted.

[0109] Please refer to Figure 4 and Figure 5 As shown, one end of the first anti-collision part 121 facing the notch (i.e. the corner area 123) has a first pushing part 1211, one end of the second anti-collision part 122 facing the notch has a second pushing part 1221, and the first pushing part 1211 and the second pushing part 1221 are connected; in this way, when the corner assembly 130 is impacted, the corner assembly 130 moves in the corner area, when the corner assembly 130 contacts the first pushing part 1211, the first anti-collision part 121 is driven to move, thereby driving the second anti-collision part 122 to move; or, when the corner assembly 130 contacts the second pushing part 1221, the second anti-collision part 122 is driven to move, thereby driving the first anti-collision part 121 to move.

[0110] That is, when the corner assembly 130 moves in the corner area 123, the first push portion 1211 can push the first anti-collision portion 121 to move, so that the first anti-collision portion 121 drives the second anti-collision portion 122 to move; or the second push portion 1221 can push the second anti-collision portion 122 to move, so that the second anti-collision portion 122 drives the first anti-collision portion 121 to move.

[0111] Since the first push portion 1211 is located at the end of the length direction of the first anti-collision portion 121, and the second push portion 1221 is located at the end of the length direction of the second anti-collision portion 122, when the corner assembly 130 is collided and contacted with the first push portion 1211 or the second push portion 1221, the deformation of the first anti-collision portion 121 or the second anti-collision portion 122 can be reduced.

[0112] In some embodiments, as shown in Figure 4 , the first anti-collision portion 121 is provided with a first collision sensing piece 151 near one side of each corner assembly 130, and the second anti-collision portion 122 is provided with a second collision sensing piece near one side of each corner assembly 130; for example, in Figure 4 , the corner assembly 130 is provided with a collision sensor on both sides of the corner, so that when any position of the surface cleaning device 100 collides with the glass frame, the collision sensor can be detected, thereby improving the accuracy of detecting the collision.

[0113] In some embodiments, as shown in Figure 4 , the ratio of the minimum distance (represented by D1) between the first collision sensing piece 151 and the corner assembly 130 to the length (represented by H1) of the first anti-collision portion 121 is 1 / 7-1 / 5; preferably, the ratio of the minimum distance between the first collision sensing piece 151 and the corner assembly 130 to the length of the first anti-collision portion 121 is 1 / 6; the ratio of the minimum distance between the second collision sensing piece and the corner assembly to the length of the second anti-collision portion is 1 / 7-1 / 5; preferably, the ratio of the minimum distance between the second collision sensing piece and the corner assembly to the length of the second anti-collision portion is 1 / 6.

[0114] For example, when the length of the anti-collision piece 120 is 270mm, the distance between the collision sensor provided on the anti-collision piece 120 and the corresponding corner assembly 130 is about 45mm, so that the problem that the collision sensor is too close to the corner assembly 130 and is easily triggered by mistake can be avoided, and the problem that the collision sensor is too far away from the corner assembly 130 and the sensitivity is poor can be avoided, thereby improving the detection sensitivity of the collision sensor, solving the problem that the collision sensor is easily triggered by mistake, and improving the user experience.

[0115] Please continue to refer to Figure 5As shown, the surface cleaning device 100 further comprises a first reset member 141 and a second reset member 142. The first reset member 141 is arranged between the corner assembly 130 and the first anti-collision part 121. When the corner assembly 130 is impacted along the length direction of the first anti-collision part 121, the first reset member 141 is in a compressed state. When the impact of the corner assembly 130 along the length direction of the first anti-collision part 121 is removed, the first reset member 141 is used to drive the corner assembly 130 to reset in the opposite direction, i.e., to drive the corner assembly 130 to move away from the first anti-collision part 121. The second reset member 142 is arranged between the corner assembly 130 and the second anti-collision part 122. When the corner assembly 130 is impacted along the length direction of the second anti-collision part 122, the second reset member 142 is in a compressed state. When the impact of the corner assembly 130 along the length direction of the second anti-collision part 122 is removed, the second reset member 142 is used to drive the corner assembly 130 to reset in the opposite direction, i.e., to drive the corner assembly 130 to move away from the second anti-collision part 122.

[0116] For example, the first reset member 141 and the second reset member 142 include but are not limited to springs, elastic columns, elastic pads, elastic foam, etc., as long as they can reset the corner assembly 130 by their own elastic force, which is not limited herein.

[0117] In addition, when the first reset member 141 and the second reset member 142 are elastic structures such as springs, when the corner assembly 130 collides with the glass frame, the reset member 140 can absorb at least part of the impact force to achieve the purpose of buffering, thereby reducing the impact force transmitted to the anti-collision member 120, and further avoiding the problem of deformation and damage of the anti-collision member 120.

[0118] In some embodiments, please refer to Figure 5 As shown, the corner assembly 130 is rotationally connected to the anti-collision member 120. For example, the anti-collision member 120 defines a rotation axis, and the fixing member 131 is rotationally connected to the anti-collision member 120. When the corner assembly 130 is subjected to an external force, the corner assembly 130 can rotate relative to the anti-collision member 120 about the rotation axis, so that the corner assembly 130 moves a certain distance relative to the anti-collision member 120 before driving the anti-collision member 120 to move when subjected to a collision impact force.

[0119] In other embodiments, the corner assembly 130 is slidingly connected to the anti-collision member 120. When the corner assembly 130 is subjected to an external force, the corner assembly 130 can slide relative to the anti-collision member 120 within a predetermined distance, so that the corner assembly 130 moves a first distance before driving the anti-collision member 120 to move under the action of a collision impact force, thereby reducing the impact force on the anti-collision member 120.

[0120] For example, the fixed part 131 in the corner assembly 130 is provided with a sliding rail, and the anti-collision part 120 is provided with a sliding groove matched with the sliding rail in the movement direction of the corner assembly 130. In this way, when the corner assembly 130 is subjected to the impact force, the corner assembly 130 slides along the sliding groove relative to the anti-collision part 120, so as to improve the accuracy and smoothness of the movement route of the corner assembly 130.

[0121] In addition, when the corner assembly 130 drives the anti-collision part 120 to retract to one side of the device body 110 under the impact force, part of the structure of the corner assembly 130 always protrudes outward from the edge of the anti-collision part 120 away from the device body 110. That is, part of the structure of the corner assembly 130 always protrudes outward from the outer contour of the anti-collision part 120, regardless of whether the corner assembly 130 collides with the glass frame, so as to avoid the contact between the anti-collision part 120 and the glass frame, and further improve the protection of the anti-collision part 120.

[0122] In order to make the corner assembly 130 protrude outward from the outer contour of the anti-collision part 120 in any state, in the embodiment of the present application, the distance by which the corner assembly 130 protrudes outward from the outer edge of the anti-collision part 120 in the length direction of the first anti-collision part 121 is greater than the limit distance by which the corner assembly 130 moves in the length direction of the first anti-collision part 121 in the corner region 123; and the distance by which the corner assembly 130 protrudes outward from the outer edge of the anti-collision part 120 in the length direction of the second anti-collision part 122 is greater than the limit distance by which the corner assembly 130 moves in the length direction of the second anti-collision part 122 in the corner region 123.

[0123] In this way, when the corner assembly 130 drives the anti-collision part 120 to retract to one side of the device body 110, part of the structure of the corner assembly 130 always protrudes outward from the outer contour of the anti-collision part 120, so that the anti-collision part 120 has a gap with the glass frame in any case, to avoid direct contact between the anti-collision part 120 and the glass frame, and reduce the wear and deformation of the anti-collision part 120 under impact.

[0124] In addition, the anti-collision part 120 can be made of a material with certain strength and toughness, so as to improve the impact resistance and strength of the anti-collision part 120.

[0125] In the surface cleaning device 100 provided by the embodiment of the present application, the cloth is arranged at the bottom end of the bottom plate 112 in the device body 110. When the surface cleaning device 100 moves on the glass surface, the cloth can clean the glass surface. However, when the glass is a framed glass, the glass frame cannot be cleaned, thereby affecting the user experience.

[0126] To solve the above problems, the surface cleaning device 100 provided by the embodiment of the present application further comprises a frame cleaning member, the frame cleaning member is at least partially structured to protrude outward from the profile of the anti-collision member 120 on the side away from the device body 110, so that the frame cleaning member forms the outermost surface of the surface cleaning device 100, so that when the surface cleaning device 100 moves along the glass frame, the frame cleaning member is used to clean the glass frame.

[0127] For example, the cleaning surface of the frame cleaning member faces the glass frame, and the part of the frame cleaning member protruding outward from the profile of the anti-collision member 120 faces the glass frame, thereby improving the cleaning efficiency.

[0128] In some embodiments, the frame cleaning member is arranged on the outer profile surface of the anti-collision member 120, so that when the surface cleaning device 100 moves along the glass frame, the frame cleaning member can clean the glass frame.

[0129] In another embodiment, the frame cleaning member can be arranged on the rotating member 132 (i.e. the rolling surface) of the corner assembly 130, so that the frame cleaning member forms the outermost profile of the corner assembly 130, and when the rotating member rolls along the glass frame, the frame cleaning member is driven to rotate synchronously, so that the frame cleaning member cleans the glass frame while reducing the friction between the frame cleaning member and the glass frame, thereby prolonging the service life of the frame cleaning member and reducing the cost.

[0130] For example, the frame cleaning member includes but is not limited to a hair implanting member, i.e. the hair implanting member forms the outermost profile of the corner assembly, wherein the hair implanting member can be formed on the outer surface of the rotating member by spraying, gluing or the like.

[0131] In order to reduce the friction between the fixing member and the rotating member and the smoothness of the rolling wheel when it rotates, in some embodiments, a bearing is arranged between the fixing member and the rotating member to realize the rotation of the rotating member; however, the relative rotation between the rotating member and the fixing member is realized through the bearing, which has the problems of complicated disassembly and assembly, complexity and high cost.

[0132] Based on the above problems, the embodiment of the present application, please refer to Figures 6 to 10As shown, the first rotating fitting part 1311 is arranged on the fixing part 131, the second rotating fitting part 1321 is arranged on the rotating part 132 and matches the first rotating fitting part 1311, the second rotating fitting part 1321 rotates with the second rotating fitting part 1321 to make the rotating part 132 rotate around its own axis relative to the fixing part 131 under the action of force, and the hardness of the first rotating fitting part 1311 is different from that of the second rotating fitting part 1321, so that the self-rotation of the rotating part 132 relative to the fixing part 131 is realized while the friction between the first rotating fitting part 1311 and the second rotating fitting part 1321 is reduced; for example, the first rotating fitting part 1311 can be one of a rotating shaft and a rotating hole, and the second rotating fitting part 1321 can be the other one of the rotating shaft and the rotating hole, compared with the rotating connection of the rotating part 132 and the fixing part 131 through the bearing, the self-rotation of the rotating part 132 is realized through the first rotating fitting part 1311 and the second rotating fitting part 1321, and meanwhile, the disassembly and assembly are simple and the cost is low.

[0133] In some embodiments, referring to Figure 8 and Figure 9 , the first rotating fitting part 1311 is a rotating shaft, and the second rotating fitting part 1321 is a rotating hole, that is, the rotating part 132 is sleeved on the fixing part 131 and can rotate relative to the fixing part 131, wherein the hardness of the rotating shaft is less than that of the hole wall of the rotating hole, so as to reduce the friction between the rotating shaft and the rotating hole.

[0134] In addition, the rotating part 132 is rotatably arranged on the fixing part 131 and detachably connected with the fixing part 131 to avoid the problem of falling off between the rotating part 132 and the fixing part 131; it can be understood that the rotating part 132 can rotate around its own axis relative to the fixing part 131 after the detachable connection of the rotating part 132 and the fixing part 131, that is, the self-rotation of the rotating part 132 is not affected after the detachable connection of the rotating part 132 and the fixing part 131.

[0135] In some embodiments, referring to Figures 8 to 10 , the fixing part 131 has a first clamping part 1312, and the rotating part 132 has a second clamping part 1322 matched with the first clamping part 1312, the first clamping part 1312 is configured to be clamped with the first clamping part 1312, and when the rotating part 132 rotates relative to the fixing part 131 under the action of force, the second clamping part 1322 is configured to move relative to the first clamping part 1312, that is, the rotating part 132 is detachably connected with the fixing part 131 in a clamped manner, which is simple in disassembly and assembly, simple in structure, low in cost, and does not affect the self-rotation of the rotating part 132 after clamping.

[0136] For example, the first clamping part 1312 can be one of a clamping protrusion and a clamping groove extending in the rotation direction of the rotating member 132, and the second clamping part 1322 can be the other of the clamping protrusion and the clamping groove extending in the rotation direction of the rotating member 132, so that the clamping protrusion moves along the extension direction of the clamping groove when the rotating member 132 rotates relative to the fixed member 131.

[0137] In some embodiments, the outer wall surface of the rotating shaft has one of a clamping protrusion and a clamping groove extending in the circumferential direction of the rotating shaft, and the hole wall of the rotating hole has the other of the clamping protrusion and the clamping groove extending in the circumferential direction of the rotating hole; when the rotating shaft is installed in the rotating hole, the clamping protrusion is located in the clamping groove, so that the structural compactness of the corner assembly 130 is improved, and the structure is simple, easy to implement, and low in cost.

[0138] For example, in Figures 8 to 10 , the first rotating fitting part 1311 is a rotating shaft, the outer wall surface of the rotating shaft has a clamping groove extending in the circumferential direction of the rotating shaft, and the second rotating fitting part 1321 is a rotating hole, the hole wall of the rotating hole has a clamping protrusion extending in the circumferential direction of the rotating hole. Since the rotating shaft is arranged in the rotating hole and the clamping protrusion is located in the clamping groove, in order to avoid interference between the rotating shaft and the clamping protrusion when the rotating shaft is arranged in the rotating hole, there is a large gap between the outer wall surface of the rotating shaft and the hole wall of the rotating hole after the rotating shaft is arranged in the rotating hole, which causes the rotating member 132 to shake in the radial direction when rotating around the fixed member 131, thereby affecting the stability of the rotating member 132 when rotating.

[0139] Based on the above problems, in the embodiments of the present application, at least one of the first rotating fitting part 1311 and the second rotating fitting part 1321 has at least two contact parts 1323 arranged at intervals in the circumferential direction thereof, and when the first rotating fitting part 1311 and the second rotating fitting part 1321 cooperate with each other, the contact part 1323 is configured to slide with the other of the first rotating fitting part 1311 and the second rotating fitting part 1321, so as to reduce the gap in the radial direction between the first rotating fitting part 1311 and the second rotating fitting part 1321 through the contact part 1323, thereby improving the problem of shaking of the rotating member 132 when rotating relative to the fixed member 131, and further improving the stability of the rotating member 132 when rotating.

[0140] For example, please refer to Figure 9 and Figure 10As shown, the second rotation fitting part 1321 (the rotation hole) has at least two contact parts 1323, which are arranged along the circumference of the second rotation fitting part 1321, wherein the contact part 1323 can be a contact protrusion, so as to reduce the gap between the first rotation fitting part 1311 and the second rotation fitting part 1321 by the contact protrusion, and avoid the wobble of the rotating part 132 relative to the fixed part 131 when the rotating part 132 rotates.

[0141] In some embodiments, the surface of the contact protrusion facing the end of the first rotation fitting part 1311 can be a smooth arc surface or a spherical surface, so as to reduce the friction between the contact protrusion and the surface of the first rotation fitting part 1311.

[0142] For example, the hole wall of the rotation hole has a clamping protrusion extending along the circumference thereof and at least two contact parts 1323 arranged along the circumference thereof, and the size of the contact part 1323 protruding from the hole wall of the rotation hole is smaller than the size of the clamping protrusion protruding from the hole wall of the rotation hole, so as to reduce the gap between the rotation hole and the rotating shaft by the contact part 1323, improve the wobble of the rotating part 132 when it rotates, and avoid the interference between the contact part 1323 and the rotating shaft.

[0143] For another example, the surface of the contact protrusion facing the end of the rotating shaft can be an arc-shaped groove matched with the rotating shaft, and the material of the contact protrusion can be a material with certain elasticity, so as to further reduce the gap between the contact protrusion and the rotating shaft, and further improve the stability of the rotating part 132 when it rotates.

[0144] Please refer back to Figures 1 to 5 As shown, since at least part of the structure of the rotating part 132 in the corner assembly 130 protrudes outwardly from the outer contour of the anti-collision part 120, when the surface cleaning device 100 moves along the glass frame, the rotating part 132 rolls in contact with the glass frame, and the cloth is usually arranged at the bottom end of the bottom plate 112 in the device body 110, and the contour of the cloth coincides with the contour of the bottom plate 112. Therefore, when the surface cleaning device 100 moves along the glass frame and the rotating part 132 rolls in contact with the glass frame, there is a certain gap between the contour of the cloth and the edge of the glass, so that there is a problem of missing wiping the area close to the glass frame.

[0145] Based on the above problems, in the embodiment of the present application, the corner assembly 130 further comprises a corner cleaning piece 160, which is arranged on the edge detection side of the device body 110, and at least part of the structure of the corner cleaning piece 160 protrudes outward from the outer contour of the edge detection side of the device body 110 and protrudes outward from the outer contour of the boundary detection piece 134 in the direction perpendicular to the surface to be cleaned; when the corner cleaning piece 160 moves with the surface cleaning device 100 to clean the surface to be cleaned, the boundary detection piece 134 abuts against the surface to be cleaned, that is, the corner cleaning piece 160 does not affect the contact between the boundary detection piece 134 and the glass surface in the direction perpendicular to the glass surface, thereby improving the reliability of the boundary detection piece 134 in detecting changes in the position of the surface cleaning device 100; and the part of the corner cleaning piece 160 that protrudes outward from the outer contour of the device body 110 can clean the missed area near the frame of the glass as the surface cleaning device 100 moves, thereby improving the user experience.

[0146] In some embodiments, the size of the part of the corner cleaning piece 160 that protrudes outward from the outer contour of the device body 110 is not less than the size of the part of the rotating piece 132 that protrudes outward from the outer contour of the device body 110, so that the corner cleaning piece 160 can completely cover the area between the outermost contour of the rotating piece 132 and the outermost contour of the device body 110, so that the corner cleaning piece 160 can solve the problem of missed cleaning of the glass surface when cleaning the glass surface with the surface cleaning device 100.

[0147] In order to further improve the compactness of the overall structure of the surface cleaning device 100, in some embodiments, as shown in Figure 5 , Figure 6 , Figure 7 and Figure 11 , the corner cleaning piece 160 is arranged on the rotating piece 132, and at least part of the corner cleaning piece 160 protrudes outward from the bottom end of the rotating piece 132 in the axial direction of the rotating piece 132, so that the corner cleaning piece 160 can be in sufficient contact with the glass surface, thereby improving the cleaning effect of the corner cleaning piece 160 on the glass surface.

[0148] In some embodiments, when the corner cleaning piece 160 is arranged on the rotating piece 132, the corner cleaning piece 160 is arranged on at least one side of the boundary detection piece 134; and when the corner cleaning piece 160 is arranged on only one side of the boundary detection piece 134, the path of the movement of the boundary detection piece 134 can have a missed cleaning problem, therefore, in the embodiment of the present application, as shown in Figures 5 to 7 , Figure 11 , the corner cleaning piece 160 is arranged around the outer circumferential side of the boundary detection piece 134, so that the corner cleaning piece 160 can clean any path traveled by the boundary detection piece 134 to further reduce the missed cleaning area.

[0149] In some embodiments, the corner cleaning member has a plurality of cleaning portions 161, which are arranged at intervals at the bottom end of the rotating member 132, and each cleaning portion 161 protrudes outwardly from the bottom end of the rotating member 132. For example, the corner cleaning member can be a cleaning brush, i.e., the cleaning portion 161 is a brush for cleaning, so as to clean the glass surface by the brush.

[0150] For example, as shown in Figure 5 and Figure 6 , the plurality of cleaning portions 161 form a plurality of cleaning groups, i.e., a plurality of brush groups, which are arranged at intervals along the radial direction of the rotating member 132 from the center to the outer periphery of the rotating member 132, and each cleaning group includes at least two cleaning portions 161, and the at least two cleaning portions 161 in each cleaning group are arranged at intervals along the circumferential direction of the rotating member 132.

[0151] In order to further improve the cleaning effect and avoid the problem of missed wiping between adjacent cleaning portions 161, please continue to refer to Figure 5 and Figure 6 , the cleaning portions 161 in each cleaning group are arranged at intervals in the circumferential direction of the rotating member 132 with the cleaning portions 161 in the adjacent cleaning group, so that the cleaning area can be increased, thereby improving the phenomenon of missed wiping.

[0152] In order to improve the installation reliability between the corner cleaning member 160 and the rotating member 132, in the embodiments of the present application, please refer to Figure 11 , the bottom wall of the rotating member 132 has a groove recessed inwardly of the rotating member 132, and the corner cleaning member 160 is fixedly connected to the groove bottom, i.e., the plurality of cleaning portions 161 are arranged in the groove and fixedly connected to the groove bottom, and part of the cleaning portion 161 protrudes from the bottom wall of the rotating member 132, so that the cleaning portion 161 protruding from the bottom of the rotating member 132 is in contact with the glass surface, so as to achieve the purpose of cleaning the glass surface.

[0153] In some embodiments, the corner cleaning member 160 can be deformed, and when the corner cleaning member 160 abuts against the surface to be cleaned (the glass surface) and deforms, the size of the corner cleaning member 160 protruding from the bottom contour of the device body 110 after deformation is less than or equal to the size of the boundary detection member 134 protruding from the bottom contour of the device body 110 when abutting against the glass surface, so as to ensure that the boundary detection member 134 always abuts against the glass surface when the surface cleaning device 100 moves on the glass surface, thereby ensuring the working reliability of the boundary detection member 134.

[0154] For example, as shown in Figure 7 and Figure 11As shown in the figure, the corner cleaning member 160 is a cleaning brush, which protrudes from the bottom end of the device body 110. When the corner cleaning member 160 is in the air, the size of the protrusion of the corner cleaning member 160 from the bottom end of the device body 110 is 1.5mm-2mm. When the boundary detection member 134 is in contact with the glass surface, the size of the protrusion of the boundary detection member 134 from the bottom end of the device body 110 (i.e. the bottom end of the bottom plate 112) is, for example, 1mm-1.5mm. In an example, the size of the protrusion of the boundary detection member 134 from the bottom end of the device body 110 (i.e. the bottom end of the bottom plate 112) when the boundary detection member 134 is in contact with the glass surface is equal to the size of the protrusion of the corner cleaning member 160 from the bottom end of the device body 110 after deformation. In this way, the deformation of the corner cleaning member 160 in the horizontal direction is avoided from interfering with the boundary detection member, thereby avoiding the corner cleaning member 160.

[0155] In some embodiments, the deformability of the cleaning portion 161 decreases in the direction from the surface facing the glass to the surface away from the glass, i.e. the hardness of the cleaning portion 161 increases in the direction from the surface facing the glass to the surface away from the glass. In this way, the cleaning portion 161 has sufficient strength to clean the glass surface while avoiding excessive deformation of the cleaning portion 161.

[0156] In order to further improve the strength of the cleaning portion 161 near the end of the groove bottom (i.e. the root of the brush), the end of the cleaning portion 161 near the groove bottom is provided with a reinforcing member, which is embedded in the end of the cleaning portion 161 near the groove bottom. In an example, the reinforcing member can be made of a material with certain strength, such as metal, which is embedded in the cleaning portion 161. The cleaning portion 161 can be a silica gel rod, a rubber rod or a cleaning brush body, etc.

[0157] In addition, the cross-sectional dimension of the cleaning portion 161 is less than or equal to 0.1mm, and in an example, the cross-sectional dimension of the cleaning portion 161 is 0.9mm. In this way, the cleaning portion 161 has certain strength while meeting the cleaning effect, thereby prolonging the service life of the cleaning portion 161.

[0158] Please refer to Figure 2 and Figure 12 In the surface cleaning device 100 provided by the embodiments of the present application, the walking assembly 200 can be a track 210 assembly, which includes a driving wheel 220, a driven wheel 230 and a track 210. The driving wheel 220 and the driven wheel 230 are arranged side by side and spaced apart along the walking direction of the surface cleaning device 100, and the track 210 is arranged around the driving wheel 220 and the driven wheel 230. In this way, when the motor drives the driving wheel 220 to rotate, the driving wheel 220 drives the driven wheel 230 to move through the track 210, and the track 210 is in contact with the glass surface, so that the surface cleaning device 100 walks along the glass surface through the track 210.

[0159] In the cleaning of the glass surface, the user usually sprays water on the glass surface first, or cleans after the cloth is wetted; or, as shown in Figure 13 The glass surface cleaning device 100 is provided with a water tank 180, and the front side and the rear side of the surface cleaning device 100 are provided with water spraying members in communication with the water tank 180, for example, nozzles. Thus, the water in the water tank 180 can be sprayed to the glass surface through the nozzles. When the surface cleaning device 100 advances, the nozzles located on the front side of the surface cleaning device 100 spray water to the front glass, and the surface cleaning device 100 performs wet cleaning on the glass surface during the advancing process. Conversely, when the surface cleaning device 100 retreats, the nozzles located on the rear side of the surface cleaning device 100 spray water to the rear glass, and the surface cleaning device 100 performs wet cleaning on the glass surface during the retreating process, thereby improving the cleaning effect on the glass surface.

[0160] However, if there are contaminants or sewage on the glass surface after cleaning, when the track 210 contacts and walks along the glass surface, the contaminants or sewage on the glass surface are easy to stick to the track 210. When the track 210 walks along the glass surface, it will contaminate other surfaces of the glass, and if the contaminants stick to the track 210, it will also affect the smoothness of the track 210 on the glass surface.

[0161] Based on the above problems, in the embodiments of the present application, please refer to Figure 12 As shown in the figure, the surface cleaning device 100 further comprises a liquid scraping member 170, which is arranged at least on the front side of the walking assembly 200 along the walking direction of the device body 110 and is detachably connected with the device body 110. Part of the structure of the liquid scraping member 170 protrudes outward from the bottom wall of the device body 110 along the width of the device body 110 and can be deformed when abutting against the glass surface, and the size of the liquid scraping member 170 in the width direction of the device body 110 is greater than the size of the walking assembly 200 in the width direction of the device body 110. When the device body 110 walks along the surface to be cleaned, the liquid scraping member 170 abuts and moves along the surface to be cleaned to block the contaminants on the surface to be cleaned from contacting the walking assembly 200.

[0162] It can be understood that, in the embodiments of the present application, by arranging the liquid scraping member 170 at least on the front side of the walking assembly 200, when the surface cleaning device 100 advances, the liquid scraping member 170 first scrapes the contaminants and sewage on the glass surface, and the scraped contaminants and sewage are isolated on the side of the liquid scraping member 170 away from the walking assembly 200, so as to avoid the contaminants or sewage on the glass surface from being attached to the walking assembly 200 by contacting the walking assembly 200, avoid the contaminants from polluting the walking assembly 200 and affecting the normal walking of the walking assembly 200, thereby improving the walking comfort of the walking assembly 200 and avoiding the secondary pollution of the walking assembly 200 to the surface to be cleaned, and further improving the cleaning effect on the surface to be cleaned.

[0163] Please continue to refer to Figure 12 As shown in FIG. 6, the front side and the rear side of the walking assembly 200 are both provided with the liquid scraping member 170, so that when the surface cleaning device 100 advances, the liquid scraping member 170 on the front side first scrapes the contaminants or sewage on the surface of the glass on the front side of the walking assembly 200; when the surface cleaning device 100 retreats, the liquid scraping member 170 on the rear side first scrapes the contaminants or sewage on the surface of the glass on the rear side of the walking assembly 200, so that the walking assembly 200 does not contact the contaminants or sewage on the glass surface when driving the surface cleaning device 100 to advance or retreat, further improving the isolation effect of isolating the walking assembly 200 from the contaminants, and further improving the cleaning effect on the glass surface.

[0164] It can be understood that, along the walking direction of the walking assembly 200, the two liquid scraping members 170 form a contaminant isolation area, and when the surface cleaning device 100 advances or retreats, the liquid scraping member 170 is configured to isolate the contaminants outside the contaminant isolation area, so as to avoid the contaminants or sewage from being attached to the track 210.

[0165] In addition, along the width direction of the surface cleaning device 100, for example, the direction perpendicular to the walking direction of the surface cleaning device 100, the width of the liquid scraping area is greater than the width of the walking assembly 200, that is, the front and rear liquid scraping members 170 completely isolate the contaminants on the two sides of the front and rear sides of the walking assembly 200 outside the liquid scraping area.

[0166] For example, the liquid scraping member 170 can be a liquid scraping plate, for example, the liquid scraping plate can be made of silica gel material, rubber material or other materials with certain elasticity.

[0167] In this way, when the device body 110 walks along the surface to be cleaned, the part of the liquid scraping member 170 protruding outward from the bottom wall of the device body 110 is bent to the side of the walking assembly 200 under the abutting force of the surface to be cleaned (as shown in FIG. 6), so as to scrape the contaminants or sewage on the surface to be cleaned. Figure 14As shown in the figure, it seals against the surface to be cleaned to isolate contaminants on the side of the wiper 170 away from the travel assembly 200, thereby improving the isolation effect of contaminants.

[0168] In some embodiments, please continue to refer to Figure 14 As shown, the device body 110 includes an upper cover 111 and a bottom plate 112 located below the upper cover 111. The upper cover 111 and the bottom plate 112 together form a receiving cavity. The bottom plate 112 has a clearance notch 113. The traveling component 200 and the wiper 170 are both installed in the receiving cavity, and part of the structure of the traveling component 200 and the wiper 170 protrudes outward from the bottom plate 112 through the clearance notch 113. Along the traveling direction of the traveling component 200, there is a gap between the wiper 170 and the opening wall of the clearance notch 113. This gap is used to avoid deformation of the part of the wiper 170 protruding from the bottom plate 112, so that the part of the wiper 170 protruding from the bottom plate 112 has clearance space, preventing the bottom end of the wiper 170 from interfering with the opening wall of the clearance notch 113 when deformed, thus affecting the sealing performance with the glass surface.

[0169] Therefore, along the walking direction of the walking assembly 200, the gap between the wiper 170 and the wall of the clearance notch 113 is greater than the deformation of the wiper 170 protruding from the base plate 112, so as to provide sufficient clearance space for the deformation of the wiper 170, thereby improving the working reliability of the wiper 170.

[0170] Because the wiper 170 rubs against the glass surface for a long time, it needs to be replaced after a certain period of use. Therefore, in order to improve the interchangeability of the wiper 170, in this embodiment of the application, the wiper 170 is detachably installed in the receiving cavity to facilitate the disassembly and replacement of the wiper 170.

[0171] For example, the top of the scraper 170 has a first fixing part 171, and the receiving cavity has a second fixing part, and the first fixing part 171 and the second fixing part are detachably connected.

[0172] like Figure 15 As shown, the first fixing part 171 can be a snap-fit ​​end, and the receiving cavity has a snap-fit ​​groove that matches the snap-fit ​​end. The snap-fit ​​end snaps into the snap-fit ​​groove, thereby realizing the detachable connection of the wiper 170. Alternatively, the second fixing part can also be detachably installed in the receiving cavity by means of a threaded connection. Or, a magnet is provided on the first fixing part 171 and a magnet is also provided on the second fixing part. In this way, the wiper 170 can be installed in the receiving cavity by means of magnetic attraction. The friction between the wiper 170 and the glass surface is less than the magnetic attraction between the magnets, so that the wiper 170 will not fall off due to friction between the wiper 170 and the glass surface.

[0173] In addition, at least one of the hardness and thickness of the liquid scraping member 170 decreases in sequence from the direction away from the glass surface to the direction close to the glass surface, and the deformability increases in sequence, that is, the hardness of the top end of the liquid scraping member 170 is greater than the hardness of the bottom end in contact with the glass surface, and the thickness of the top end of the liquid scraping member 170 is greater than the thickness of the bottom end, so as to facilitate the deformation of the bottom end of the liquid scraping member 170, so that the strength of the liquid scraping member 170 can be improved while ensuring the liquid scraping effect of the liquid scraping member 170 and the sealing performance when in contact with the glass surface, thereby improving the working reliability and service life of the liquid scraping member 170.

[0174] Please refer to Figure 15 The liquid scraping member 170 includes a first part 172 and a second part 173 connected in sequence, the first part 172 is convex to the bottom wall of the device body 110, and the second part 173 is located inside the device body 110. The width dimension of the first part 172 is smaller than the width dimension of the second part 173, and the connection between the side walls on both sides of the second part 173 and the side walls on both sides of the first part 172 has a stress-resistant structure 174 in the width direction of the liquid scraping member 170. By arranging the stress-resistant structure 174, the risk of stress concentration and fracture at the corner of the first part 172 and the second part 173 can be prevented. For example, in Figure 15 The stress-resistant structure 174 is an arc structure, for example, a circular arc structure, to reduce the stress concentration at the edge corner of the first part 172 and the second part 173, thereby prolonging the service life of the liquid scraping member 170.

[0175] Please refer to Figure 14 The surface cleaning device 100 provided by the embodiment of the present application is provided with a water tank 180, and the water tank 180 has a liquid storage cavity, and the liquid storage cavity stores cleaning water used for cleaning the glass. The water in the water tank 180 can be tap water, or a solution obtained by adding a cleaning agent, a flavoring agent, or a dirt-decomposing additive to water, which is collectively referred to as water in the embodiment of the present application.

[0176] The water tank 180 is usually arranged inside the surface cleaning device 100, and a water inlet 181 for injecting water into the water tank 180 is arranged at the top of the water tank 180 (as shown in Figures 16 to 19 This causes the user to be unable to know the water storage amount in the water tank 180, thereby causing the user to be unable to determine when to add water, and the use experience is poor.

[0177] In order to facilitate the user to know the water storage amount in the water tank 180, and in particular to determine whether the water tank 180 is out of water, in the embodiment of the present application, please refer to Figure 20As shown, the top of the water tank 180 is provided with a visual window, and the water tank 180 is provided with a floating member 183, which can float up and down in the water tank 180 along with the change of the liquid level in the water tank 180, that is, the position of the floating member 183 in the water tank 180 indicates the height of the water level in the water tank 180, so that the user can observe the position of the floating member 183 through the visual window to determine whether the water tank 180 needs to be filled with water; for example, when the floating member 183 is close to the top of the water tank 180, it indicates that the water tank 180 is full of water and does not need to be filled with water, and if the floating member 183 is located at the bottom of the water tank 180, it indicates that the water tank 180 is short of water and needs to be filled with water.

[0178] For example, the floating member 183 can be a floating block or a floating ball that can float on the water surface.

[0179] In order to further ensure that the floating member 183 is within the visual range of the visual window, the liquid-containing cavity has a floating space 182 that communicates with the liquid-containing cavity, the cross-sectional profile of the floating space 182 matches the cross-sectional profile of the floating member 183, the floating member 183 is located in the floating space 182 and floats up and down along with the change of the liquid level in the floating space 182, so that the floating member 183 can be prevented from being randomly deviated in the water tank 180 to affect its visibility.

[0180] In some embodiments, the visual window is arranged at a position corresponding to the floating space 182 to improve the reliability of observing the floating member 183 in the floating space 182 through the visual window, and in addition, the color of the floating member 183 is different from the color of the water and the water tank 180, for example, the color of the floating member 183 is a more eye-catching red, yellow, green, etc., as long as it can be observed by the user, which is not limited herein.

[0181] Since the space of the floating space 182 is small, in order to make the floating member 183 float up and down along with the change of the liquid level in the floating space 182, in the embodiments of the present application, the size of the floating member 183 in a first direction is greater than the size of the floating member 183 in a second direction, wherein the first direction is consistent with the height direction of the liquid-containing cavity, and the second direction has an included angle with the first direction, for example, the second direction is perpendicular or approximately perpendicular to the first direction, so that the floating member 183 can float on the liquid surface under the action of smaller liquid buoyancy, thereby ensuring that the change of the water level in the water tank 180 can be accurately determined through the floating member 183.

[0182] For example, the size of the floating member 183 in the first direction is less than or equal to 15 mm, and the maximum width of the floating member 183 in the second direction is less than or equal to 5 mm; for example, the floating member 183 can be an oval-shaped floating ball.

[0183] In addition, in order to further improve the smoothness of the up-and-down floating of the floating member 183, in the embodiment of the present application, the dimension of the top of the floating space 182 in the second direction is greater than the dimension of the bottom of the floating space 182 in the second direction; for example, along the height direction of the floating space 182, and from the bottom end to the top end of the floating space 182, the cross-sectional dimension of the floating space 182 in the horizontal direction increases successively, so that the problem of jamming of the floating member 183 during the up-and-down floating can be prevented.

[0184] In some embodiments, the gap between the outer contour of the floating member 183 and the side wall of the floating space 182 is 0.2mm-0.3mm, so that after the floating member 183 can smoothly float up and down in the floating space 182 according to the change of the liquid level, the floating member 183 will not be too large in the lateral gap and will not be randomly floating laterally.

[0185] It can be understood that, in the embodiment of the present application, by forming the cross-sectional contour of the floating space 182 into a structure matching the cross-sectional contour of the floating member 183, the floating space 182 can guide the up-and-down floating of the floating member 183, and by forming the floating member 183 into an elliptical floating ball structure, the smoothness of the up-and-down floating of the floating member 183 on the liquid surface can be further improved.

[0186] In order to further improve the stability of the floating member 183 floating on the liquid surface, in the embodiment of the present application, the surface of the floating member 183 has a hydrophobic film, which is configured to overcome the surface tension of the liquid on the floating member 183, and improve the stable reliability of the floating member 183 floating on the liquid surface.

[0187] In addition, in order to further improve the stable reliability of the floating member 183 floating on the liquid surface, in the embodiment of the present application, the weight of the floating member 183 is 0.2g-0.3g, so as to avoid the weight of the floating member 183 being too heavy to affect the stable reliability of the floating member 183 floating on the liquid surface.

[0188] In some embodiments, the top of the water tank 180 has a water inlet 181, and a closable water inlet cover 190 is arranged on the water inlet 181, the water inlet cover 190 is connected to the water tank 180 by a guide rod, the guide rod can move in the vertical direction relative to the water tank 180, so that the water inlet cover 190 is buckled at the water inlet 181 or removed from the water inlet 181, when water needs to be added to the water tank 180, the water inlet cover 190 is opened, so that water is added to the water tank 180 through the water inlet 181; when water does not need to be added to the water tank 180, the water inlet 181 is closed by the water inlet cover 190.

[0189] In addition, the viewing window can be arranged on the water inlet cover 190, so as to facilitate the processing and manufacturing of the viewing window, reduce the preparation difficulty of the viewing window, and thus reduce the processing cost.

[0190] The embodiments of the present application also provide a cleaning system, which comprises a base station and the surface cleaning device provided by the above-mentioned embodiments, wherein the base station and the surface cleaning device are electrically connected through a cable or the like to supply power to the surface cleaning device.

[0191] In addition, the structure and working principle of the surface cleaning device have been described in detail in the above-mentioned embodiments, which will not be repeated here.

[0192] It should be noted that the "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", and the like mentioned in the specification indicate that the described embodiment can include a particular feature, structure, or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in connection with other embodiments whether explicitly described or not.

[0193] Generally, the terms should be understood at least partially by the context in which they are used. For example, the term "one or more" as used herein, depending at least in part upon the context in which it is used, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures, or characteristics in a plural sense. Similarly, terms such as "a" or "the" again, depending at least in part upon the context in which they are used, can be understood either to refer to a singular feature or feature of a combination or to refer to the combination itself and each of the features, structures, or characteristics of the combination.

[0194] It should be readily understood that "on", "above", and "on top of" in the present application should be interpreted in the broadest way possible, such that "on" means not only "directly on" but also "on with intermediate features or layers therebetween", and "above" or "on top of" means not only "above" or "on top of" but also "above" or "on top of" without intermediate features or layers therebetween (i.e., directly on).

[0195] In addition, spatially relative terms, such as "under", "below", "lower", "over", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein can be interpreted accordingly.

[0196] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A surface cleaning device comprising: The device body (110) and the adsorption assembly (300) arranged on the device body (110), the adsorption assembly (300) is used for adsorbing the surface cleaning device on the surface to be cleaned; characterized in that the surface cleaning device further comprises: A walking assembly (200) is arranged on the device body (110), and the device body (110) can walk on the surface to be cleaned through the walking assembly (200); A liquid scraping piece (170) is arranged at least on the front side of the walking assembly (200) along the walking direction of the device body (110) and is detachably connected with the device body (110), and part of the structure of the liquid scraping piece (170) protrudes outward from the bottom wall of the device body (110) along the width of the device body (110); When the device body (110) walks on the surface to be cleaned, the liquid scraping piece (170) is in sealing abutment with the surface to be cleaned and moves along the surface to be cleaned, so as to block the pollutants on the surface to be cleaned from contacting the walking assembly (200).

2. The surface cleaning apparatus of claim 1 wherein, At least one end of the liquid scraping piece (170) towards the surface to be cleaned can be deformed; and / or The size of the liquid scraping piece (170) in the width direction of the device body (110) is not less than the size of the walking assembly (200) in the width direction of the device body (110).

3. The surface cleaning apparatus of claim 2 wherein, When the device body (110) walks on the surface to be cleaned, the part of the liquid scraping piece (170) protruding outward from the bottom wall of the device body (110) bends and deforms towards the side of the walking assembly (200), and is in sealing abutment with the surface to be cleaned, so as to isolate the pollutants on the side of the liquid scraping piece (170) away from the walking assembly (200).

4. The surface cleaning apparatus of claim 3 wherein, Along the walking direction of the walking assembly (200), the front side and the rear side of the walking assembly (200) are both provided with the liquid scraping piece (170), and a pollutant isolation area is formed between the two liquid scraping pieces (170), so that when the surface cleaning device moves forward or backward, the liquid scraping piece (170) is configured to isolate the pollutants outside the pollutant isolation area.

5. The surface cleaning apparatus of any of claims 1-4, wherein, The device body (110) comprises an upper cover (111) and a bottom plate (112) below the upper cover (111), the upper cover (111) and the bottom plate (112) jointly form a containing cavity, the bottom plate (112) has a avoiding gap (113), the walking assembly (200) and the liquid scraping piece (170) are both installed in the containing cavity, and part of the structure of the walking assembly (200) and the liquid scraping piece (170) protrudes outward from the outside of the bottom plate (112) through the avoiding gap (113); Along the walking direction of the walking assembly (200), the liquid scraping piece (170) and the gap between the mouth wall of the avoiding gap (113) have a gap.

6. The surface cleaning apparatus of claim 5, wherein, Along the walking direction of the walking assembly (200), the gap between the liquid scraping piece (170) and the mouth wall of the avoiding gap (113) is greater than the deformation amount of the liquid scraping piece (170) protruding outward from the bottom plate (112).

7. The surface cleaning apparatus of claim 5, wherein, The end of the liquid scraping member (170) has a first fixing part (171), and the accommodating cavity has a second fixing part, the first fixing part (171) is detachably connected with the second fixing part.

8. The surface cleaning device of claim 7, wherein, the first fixing part (171) is clamped on the second fixing part; and / or, the first fixing part (171) is threadedly connected with the second fixing part; and / or, the first fixing part (171) and the second fixing part are magnetically attracted to each other.

9. The surface cleaning apparatus of any of claims 1-4, wherein, In the direction from far to close to the surface to be cleaned, at least one of the hardness and the thickness of the liquid scraping member (170) is sequentially reduced, and the deformability is sequentially increased.

10. The surface cleaning apparatus of claim 9, wherein, The liquid scraping member (170) comprises a first part (172) and a second part (173) connected in sequence, the first part (172) is convex to the bottom wall of the device body (110), and the second part (173) is located inside the device body (110), the width dimension of the first part (172) is smaller than that of the second part (173), and the connecting part between the side walls on both sides of the second part (173) and the side walls on both sides of the first part (172) has a stress-resistant structure (174) in the width direction of the liquid scraping member (170).

11. The surface cleaning apparatus of claim 10, wherein, The stress-resistant structure (174) is an arc structure.

12. The surface cleaning apparatus of any of claims 1-4, wherein, The liquid scraping member (170) is a liquid scraping plate.

13. The surface cleaning apparatus of any of claims 1-4, wherein, The surface cleaning device further comprises a water tank (180) and a floating member (183), the water tank (180) is arranged on the device body (110), the water tank (180) has a liquid containing cavity and a visible window; the floating member (183) is arranged in the liquid containing cavity, the floating member (183) is configured to float up and down in the liquid containing cavity with the change of the liquid level in the liquid containing cavity, and the visible window is used to observe the position of the floating member (183) in the liquid containing cavity.

14. A cleaning system characterized by, The surface cleaning device comprises a base station and a surface cleaning device as claimed in any one of claims 1-13. The surface cleaning device comprises a base station and a surface cleaning device as claimed in any one of claims 1-13.

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