Surface cleaning device and cleaning system

Abstract

The present application relates to the technical field of cleaning. Provided are a surface cleaning device and a cleaning system, which are used to solve the technical problem of contaminants on a surface to be cleaned being prone to adhering to a locomotion assembly. The surface cleaning device comprises: a device body, and a suction assembly, a locomotion assembly and a liquid-scraping member, which are disposed on the device body, wherein the suction assembly is configured to attach the surface cleaning device to a surface to be cleaned; the locomotion assembly is disposed on the device body, and the device body can travel on said surface by means of the locomotion assembly; the liquid-scraping member is at least disposed on the front side of the locomotion assembly in the travel direction of the device body and is detachably connected to the device body, and part of the structure of the liquid-scraping member protrudes from the bottom wall of the device body; and when the device body travels along said surface, the liquid-scraping member sealingly abuts against said surface and moves along said surface, so as to prevent contaminants on said surface from coming into contact with the locomotion assembly. The present application is configured to prevent the locomotion assembly from coming into contact with contaminants on a surface to be cleaned.

Description

Surface cleaning devices and cleaning systems

[0001] This application claims priority to Chinese Patent Application No. 202520034311.3, filed on January 6, 2025, entitled “Surface Cleaning Apparatus and Cleaning System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of window cleaning technology, and more particularly to a surface cleaning device and cleaning system. Background Technology

[0003] Window cleaning robots primarily rely on a vacuum pump or fan at their base to firmly adhere to the glass. Then, with the help of artificial intelligence, they automatically detect the distance to the corners of the window, plan the cleaning path, and return to their initial placement position after cleaning, making it convenient for users to remove them.

[0004] In related technologies, a window cleaning robot includes a robot body and a negative pressure device set on the robot body. The negative pressure device is used to make the window cleaning robot adhere to the glass surface. The robot body has a track structure, and part of the track structure is exposed at the bottom of the robot body so that the track structure can walk on the glass surface, thereby driving the window cleaning robot to walk on the glass surface, so that the wiping cloth set at the bottom of the robot body can clean the glass surface.

[0005] However, when there are contaminants on the glass surface, the track structure is prone to sticking to the glass surface when it walks on the glass surface. On the one hand, this affects the normal movement of the track structure, and on the other hand, the contaminated track structure is prone to causing secondary pollution to the glass surface when it walks on the glass surface. Summary of the Invention

[0006] In view of the above problems, this application provides a surface cleaning device and cleaning system to avoid the problem of the walking component coming into contact with contaminants on the surface to be cleaned when it walks on the surface to be cleaned, thereby avoiding affecting the normal walking of the walking component and the secondary contamination of the surface to be cleaned by the walking component, and thus improving the cleaning effect of the surface to be cleaned.

[0007] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0008] The first aspect of this application provides a surface cleaning device, including: a device body and an adsorption component disposed on the device body, the adsorption component being used to adsorb the surface cleaning device onto the surface to be cleaned; the device body includes an upper cover and a bottom plate, the upper cover and the bottom plate together forming a receiving cavity, the bottom plate having a clearance notch; the surface cleaning device further includes: a walking component disposed on the device body, the device body walking on the surface to be cleaned via the walking component; a scraper, at least a portion of which is disposed on the front side of the walking component in the walking direction of the device body; both the walking component and the scraper are installed in the receiving cavity, and a portion of the structure of the walking component and the scraper protrudes outward from the outside of the bottom plate through the clearance notch; when the device body walks along the surface to be cleaned, the scraper bends and deforms and seals against the surface to be cleaned, and moves along the surface to prevent contaminants on the surface to be cleaned from contacting the walking component.

[0009] In the surface cleaning device provided in the first aspect of the present application, a scraper is provided at least on the front side of the walking component. When the surface cleaning device moves forward, the scraper first scrapes away contaminants and sewage on the surface to be cleaned. The scraped contaminants and sewage are isolated on the side of the scraper away from the walking component to prevent contaminants or sewage on the surface to be cleaned from contacting the walking component and sticking to it. This avoids contaminants from polluting the walking component and affecting its normal movement, thereby improving the walking comfort of the walking component and preventing secondary contamination of the surface to be cleaned by the walking component, thus improving the cleaning effect on the surface to be cleaned.

[0010] Furthermore, the travel assembly and the wiper are installed within the receiving cavity, both protruding from the clearance notch. Compared to installing the wiper separately on the base plate, this design offers several advantages: the distance between the wiper's mounting end and the surface to be cleaned is relatively longer, resulting in a longer wiper length perpendicular to the surface. A longer wiper is more prone to deformation, with a greater deformation range, allowing it to trap more dirt and preventing it from flowing laterally and contaminating the travel assembly. Conversely, if the wiper is installed separately on the base plate, the distance between its mounting end and the surface is shorter, resulting in a shorter wiper length perpendicular to the surface. A shorter wiper is less prone to deformation, easily breaking when encountering hard objects, causing greater friction with the surface and potentially scratching the glass. It also has less deformation, trapping less contaminants or wastewater and easily contaminating the travel assembly. Additionally, the base plate floats perpendicular to the surface, further reducing the wiper's deformation space and thus the dirt accumulation space.

[0011] In some alternative implementations, a gap exists between the scraper and the wall of the clearance notch along the travel direction of the travel assembly.

[0012] Through the above design, this gap is used to avoid deformation of the wiper blade. It allows the wiper blade to undergo multi-degree-of-freedom adaptive deformation and micro-displacement when encountering glass seams, slight unevenness, or varying resistance pressure, without causing rigid interference with the base plate. This avoids wiper blade curling, seal failure, or abnormal wear caused by interference.

[0013] In some alternative implementations, along the traveling direction of the walking assembly, the gap between the wiper and the wall of the clearance notch is greater than the deformation of the wiper protruding from the base plate.

[0014] The above solution provides sufficient clearance for the deformation of the wiper components, thereby improving their operational reliability.

[0015] In some alternative embodiments, the device body also includes a rag disposed at the bottom end of the base plate, with at least a portion of the rag surrounding the outside of the clearance notch.

[0016] With the above solution, this feature combines the traveling component and the wiper protruding from the clearance notch, which can be used to plan the installation position of the wiper and limit the distance between the bottom of the wiper and the wiper, so as to avoid interference between the two and affect the formation of the negative pressure chamber.

[0017] Specifically, in the window cleaning field, when the vacuum generator (such as a fan or vacuum pump) of a window cleaning robot is activated, the base plate moves towards the surface to be cleaned, pressing the cleaning cloth tightly against it. This provides a seal for the negative pressure chamber of the robot, allowing it to adhere to the surface. The shape of the cleaning cloth generally matches the shape of the base plate, enabling it to support and apply force to the cloth while ensuring effective cleaning area. During installation, personnel follow the shape of the base plate. A clearance notch in the base plate guides the installer, ensuring the cloth is positioned around the perimeter of the notch. This effectively limits the distance between the scraper and the cloth, preventing interference when the scraper bends or deforms towards the front of the cloth, which could affect the formation of the negative pressure chamber and the scraping effect.

[0018] In some alternative embodiments, wipers are provided on both the front and rear sides of the walking assembly along the walking direction, and a contaminant isolation zone is formed between the two wipers. When the surface cleaning device moves forward or backward, the wipers are configured to isolate contaminants outside the contaminant isolation zone.

[0019] With the above solution, when the surface cleaning device moves forward, the front wiper first scrapes away contaminants or sewage on the surface of the glass in front of the traveling assembly; when the surface cleaning device moves backward, the rear wiper first scrapes away contaminants or sewage on the surface of the glass behind the traveling assembly. In this way, whether the traveling assembly drives the surface cleaning device forward or backward, it will not come into contact with contaminants or sewage on the glass surface, further improving the isolation effect between the traveling assembly and contaminants, thereby improving the cleaning effect on the glass surface.

[0020] In some alternative embodiments, the end of the scraper has a first fixing part, and the receiving cavity has a second fixing part, the first fixing part and the second fixing part being detachably connected.

[0021] With the above solution, due to the long-term friction between the wiper and the glass surface, the wiper needs to be replaced after a certain period of use. Therefore, in order to improve the interchangeability of the wiper, in this embodiment, the wiper is detachably installed in the receiving cavity to facilitate the disassembly and replacement of the wiper.

[0022] In some alternative embodiments, the hardness and thickness of the wiper decrease sequentially from the direction away from the surface to be cleaned, while the deformability increases sequentially.

[0023] With the above solution, the hardness of the top of the wiper is greater than that of the bottom end in contact with the glass surface, and the thickness of the top of the wiper is greater than that of the bottom end, so as to facilitate the deformation of the bottom end of the wiper. In this way, while ensuring the wiper's wiping effect and sealing when in contact with the glass surface, the strength of the wiper can also be improved, thereby improving the working reliability and service life of the wiper.

[0024] In some alternative embodiments, the dimension of the scraper in the width direction of the device body is not less than the dimension of the traveling assembly in the width direction of the device body.

[0025] With the above solution, the two front and rear wipers completely isolate the contaminants on the front and rear sides of the walking assembly from the wiper area.

[0026] A second aspect of this application provides a cleaning system, including a base station and the surface cleaning device provided in the first aspect above.

[0027] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the surface cleaning device and cleaning system provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 is a schematic diagram of a surface cleaning device provided in an embodiment of this application;

[0030] Figure 2 is a structural schematic diagram of the surface cleaning device provided in an embodiment of this application from another perspective;

[0031] Figure 3 is a schematic diagram of the surface cleaning device provided in the embodiment of this application from a bottom view;

[0032] Figure 4 is a schematic diagram of the anti-collision component and corner assembly in the surface cleaning device provided in the embodiment of this application;

[0033] Figure 5 is a partial schematic diagram of Figure 4;

[0034] Figure 6 is a bottom view of a structure of a corner component provided in an embodiment of this application;

[0035] Figure 7 is a schematic diagram of the corner component provided in an embodiment of this application from another perspective;

[0036] Figure 8 is a cross-sectional schematic diagram of a corner component structure provided in an embodiment of this application;

[0037] Figure 9 is an exploded view of the corner component provided in an embodiment of this application;

[0038] Figure 10 is a structural schematic diagram of a fastener in a corner assembly provided in an embodiment of this application;

[0039] Figure 11 is a schematic diagram of a rotating component in a corner assembly provided in an embodiment of this application;

[0040] Figure 12 is a cross-sectional schematic diagram of a surface cleaning device provided in an embodiment of this application;

[0041] Figure 13 is a top view of the internal structure of a surface cleaning device provided in an embodiment of this application;

[0042] Figure 14 is a partial schematic diagram of one state of Figure 12;

[0043] Figure 15 is a schematic diagram of a scraping component in a surface cleaning device provided in an embodiment of this application;

[0044] Figure 16 is a schematic diagram of a water tank provided in an embodiment of this application;

[0045] Figure 17 is a top view of a water tank provided in an embodiment of this application;

[0046] Figure 18 is a schematic diagram of the water tank provided in an embodiment of this application from another perspective;

[0047] Figure 19 is a schematic cross-sectional view of a water tank provided in an embodiment of this application, cut along the horizontal direction.

[0048] Figure 20 is a schematic cross-sectional view of a water tank provided in an embodiment of this application, cut along the vertical direction.

[0049] Explanation of reference numerals in the attached drawings: 100-Surface cleaning device; 110-Device body; 111-Top cover; 112-Base plate; 113-Avoidance notch; 114-Wiping cloth; 120-Anti-collision component; 121-First anti-collision part; 1211-First pushing part; 122-Second anti-collision part; 1221-Second pushing part; 123-Corner area; 130-Corner assembly; 131-Fixing component; 1311-First rotating mating part; 1312-First snap-fit ​​part; 132-Rotating component; 1321-Second rotating mating part; 1322-Second snap-fit ​​part; 1323-Contact part; 133-Elastic component; 134-Boundary detection component; 135-Clamping component; 136-Guide component; 137-Limiting screw; 138-Flocking component; 141-Reset component; 142-Second reset component; 150 - Collision sensor; 151 - First collision sensor; 160 - Corner cleaning component; 161 - Cleaning section; 170 - Scraper; 171 - First fixing section; 172 - First part; 173 - Second part; 174 - Stress-resistant structure; 180 - Water tank; 181 - Water inlet; 182 - Floating space; 183 - Floating component; 190 - Water inlet cover; 200 - Walking assembly; 210 - Track; 220 - Drive wheel; 230 - Driven wheel; 300 - Adsorption assembly. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0051] This application provides a surface cleaning device, which includes, but is not limited to, a window cleaning robot for cleaning surfaces such as window glass. The following description will use a window cleaning robot as an example of a surface cleaning device.

[0052] Please refer to Figures 1 to 3. The surface cleaning device 100 includes a device body 110 and an adsorption component 300 disposed on the device body 110. The adsorption component 300 is used to adsorb the device body 110 onto the surface of the glass. The adsorption component 300 includes, but is not limited to, a vacuum pump or a negative pressure fan device.

[0053] The surface cleaning device 100 also includes a base plate 112, a traveling assembly 200, and a cloth 114. The cloth 114 is disposed at the bottom end of the base plate 112 (e.g., the side facing the glass surface), and the edge of the cloth 114 coincides with the edge of the base plate 112. Along the traveling direction of the surface cleaning device 100, the traveling assembly 200 can be disposed on the front and rear sides or the left and right sides of the base plate 112. In this way, the surface cleaning device 100 can travel on the glass surface via the traveling assembly 200 to clean the glass surface using the cloth 114. Exemplarily, the traveling assembly 200 includes, but is not limited to, a tracked structure.

[0054] Please continue referring to Figures 1 to 3. The surface cleaning device 100 also includes a collision avoidance member 120. For example, the collision avoidance member 120 is a collision avoidance plate. The collision avoidance member 120 is disposed on the outer periphery of the device body 110, especially on the outer periphery of the base plate 112. That is, the collision avoidance plate has a ring structure and is movably connected to the device body 110, so that the collision avoidance member 120 can move relative to the device body 110 in a direction perpendicular to the side wall of the base plate device body 110. In this way, when the surface cleaning device 100 encounters an obstacle, the collision avoidance member 120 will retract to one side of the device body 110, so that the collision avoidance member 120 can protect the device body 110.

[0055] In addition, the surface cleaning device 100 also includes a collision sensing element 150, such as a collision sensor. The collision sensor is disposed between the anti-collision member 120 and the device body 110, and on one of the anti-collision member 120 and the device body 110. In this way, when the anti-collision member 120 encounters an obstacle, the anti-collision member 120 retracts to the 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. The controller determines that the surface cleaning device 100 has been collided based on the collision signal and controls the surface cleaning device 100 to stop or turn.

[0056] Therefore, if the glass has a framed structure, the collision sensor can be used to detect whether the surface cleaning device 100 has reached the frame of the glass; or, the collision sensor can be used to detect whether the surface cleaning device 100 has collided with an obstacle.

[0057] In some embodiments, as shown in Figures 1 to 5, the surface cleaning device 100 further includes a corner assembly 130, which is disposed at the corner of the surface cleaning device 100. For example, the surface cleaning device 100 is a rectangular structure, and the area where two adjacent sides of the rectangle intersect and are adjacent is the corner position; at least a portion of the corner assembly 130 protrudes outward from the outer contour of the base plate 112.

[0058] Please refer 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 to the anti-collision member 120. The fixing member 131 has a receiving space with an opening at the bottom end. The boundary detection member 134 is located in the receiving space and can extend out of the receiving space through the opening at the bottom end or be received inside the receiving space.

[0059] In addition, the corner assembly 130 also includes an elastic element 133, which includes, but is not limited to, a spring. The boundary detection element 134 can be a boundary detection ball. The elastic element 133 is disposed between the top of the boundary detection element 134 and the top wall of the accommodating space. In this way, the boundary detection element 134 is movably disposed on the fixing element 131 through the elastic element 133. Under the force of the elastic element 133, the boundary detection element 134 can protrude outward from the bottom end of the base plate 112 and abut against the glass surface.

[0060] In some embodiments, the corner assembly 130 further includes a rotating member 132, which includes, but is not limited to, a roller. The roller is rotatably mounted on the fixing member 131, and at least a portion of the roller protrudes outward 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 roll into contact with the glass frame to reduce friction with the glass frame.

[0061] In addition, the boundary detection element 134 is located on at least one side of the roller, or the boundary detection element 134 is located in the roller. For example, in Figures 2 to 5, the boundary detection element 134 is disposed in the roller and protrudes from the bottom end of the roller and abuts against the glass surface under the elastic force of the elastic element 133. That is, the roller surrounds the outer periphery of the boundary detection element 134, and the boundary detection element 134 can move up and down relative to the roller along the axial direction of the roller.

[0062] When the glass is frameless, if the surface cleaning device 100 moves to the point where the boundary detection element 134 is outside the glass, the boundary detection element 134 moves downward under the elastic force of the elastic element 133 to protrude from the base plate 112. At this time, the elastic element 133 is in a free extension state, the boundary detection element 134 releases contact with the surface of the glass and is triggered, and sends a signal to the controller of the surface cleaning device 100. The controller determines the position change of the surface cleaning device 100 based on the signal to prevent the risk of the surface cleaning device 100 falling from the edge.

[0063] When the glass is framed, the boundary detection element 134 is always in contact with the glass surface. When the surface cleaning device 100 encounters an obstacle (such as the glass frame), the roller first collides with the glass frame. Under the impact of the collision, the roller drives the anti-collision element 120 to retract towards the device body 110. The anti-collision element 120 triggers the collision sensor. The collision sensor is triggered and sends a collision signal to the controller of the surface cleaning device 100. The controller determines that the surface cleaning device 100 has been collided based on the collision signal, thus determining that the surface cleaning device 100 has reached the glass frame.

[0064] To reduce the friction between the boundary detector 134 and the glass surface, the boundary detector 134 is a boundary detector ball that can rotate around its own axis. Thus, when the boundary detector ball comes into contact with the glass surface, it can still rotate around its own axis, thereby reducing the friction between the boundary detector ball and the glass surface.

[0065] To improve the accuracy of the vertical movement path of the boundary detector 134 within the accommodating space, in this embodiment, as shown in Figures 8 and 9, the corner assembly 130 further includes a clamping member 135 and a guide member 136. The clamping member 135 is located on the top of the boundary detector 134 and is used to clamp the boundary detector 134. The boundary detector 134 can rotate relative to the clamping member 135 around its own axis. The guide member 136 is located on the top of the boundary detector 134 and connected to the clamping member 135. The guide member 136 penetrates the top wall of the accommodating space and is movably connected to the fixing member 131, so that the guide member 136 can drive the boundary detector 134 relative to the clamping member 135. The fixing member 131 moves up and down within the accommodating space. The guide member 136 has a limiting part at one end near the boundary detection member 134. The elastic member 133 is located between the limiting part and the top wall of the accommodating space, so that the elastic member 133 can drive the boundary detection member 134 to move away from the fixing member 131 through its own elastic force, thereby causing at least a part of the boundary detection member 134 to extend out of the bottom end of the base plate 112 in the surface cleaning device 100. The boundary detection member 134 can also push the guide member 136 to move closer to the fixing member 131 under the action of external force, so that at least a part of the structure of the boundary detection member 134 can retract into the accommodating space.

[0066] For example, the guide 136 can be connected to the fixing member 131 by the limiting screw 137, and the guide 136 can move up and down relative to the fixing member 131 in the direction perpendicular to the glass surface by the limiting screw 137.

[0067] Additionally, a trigger switch can be provided on the side wall of the boundary detector 134. When the boundary detector 134 moves outside the outer contour of the frameless glass, the boundary detector 134 moves downward under the elastic force of the elastic member 133, and the trigger switch of the boundary detector 134 is triggered, so that the boundary detector 134 sends a signal to the controller of the surface cleaning device 100, thereby determining that the surface cleaning device 100 has moved to a position near the edge of the glass. At this time, the elastic member 133 is in a free extension state. When the boundary detector 134 moves towards the glass surface with the surface cleaning device 100, the boundary detector 134 moves upward under the pushing action of the glass, and the boundary detector 134 comes into contact with the surface of the glass. At this time, the elastic member 133 is in a compressed state, and the trigger part on the boundary detector 134 is de-triggered.

[0068] To improve the cleaning efficiency of the surface cleaning device 100, the walking speed of the surface cleaning device 100 is constantly being increased. However, as the walking speed of the surface cleaning device 100 increases, when the part of the corner component 130 protruding from the anti-collision member 120 collides with the glass frame, there is a problem of large impact force. Since the corner component 130 and the anti-collision member 120 are relatively fixed, the anti-collision member 120 is easily damaged by impact, especially the part of the anti-collision member 120 near the corner component 130, which suffers severe deformation and damage. In addition, the anti-collision member 120 is large in size, and it is difficult and costly to replace it after it is damaged.

[0069] To address the aforementioned issues, in this embodiment of the application, as shown in Figures 4 and 5, the corner component 130 is movably disposed on the anti-collision member, and at least a portion of the corner component 130 protrudes beyond the outer contour of the base plate 112, i.e., at least a portion of the corner component 130 is formed as the outermost contour of the surface cleaning device 100; when the corner component 130 is not impacted, at least a portion of the corner component 130 protrudes beyond the outer edge of the anti-collision member 120; when the corner component 130 is impacted, the corner component 130 moves relative to the anti-collision member 120, and after the corner component 130 moves to contact the anti-collision member 120, it drives the anti-collision member 120 to move relative to the device body 110.

[0070] It should be noted that the state in which the corner component 130 is impacted refers to the state in which the corner component 130 begins to move relative to the anti-collision member 120.

[0071] Therefore, in this embodiment, the corner component 130 is movably disposed on the anti-collision member 120, so that when the corner component 130 is impacted, it moves a certain distance first and then drives the anti-collision member 120 to move. Compared with the corner component 130 being fixedly connected to the anti-collision member 120 and directly driving the anti-collision member 120 to move under the impact force, this application can buffer the impact force to reduce the impact force on the anti-collision member 120 and avoid the problem of the anti-collision member 120 being deformed or even damaged by the impact.

[0072] In addition, the corner assembly 130 can be detachably connected to the anti-collision member 120 so that the corner assembly 130 can be replaced if it is damaged by an impact. Since the corner assembly 130 is smaller in size than the anti-collision member 120, the replacement of the corner assembly 130 is simple and easy.

[0073] In some embodiments, referring to Figures 4 and 5, the anti-collision member 120 includes a first anti-collision part 121 and a second anti-collision part 122 connected to each other. The first anti-collision part 121 and the second anti-collision part 122 intersect and are adjacent to each other. A corner region 123 is formed between the first anti-collision part 121 and the second anti-collision part 122. A corner component 130 is movably disposed within the corner region 123. When the corner component 130 is not impacted, at least a portion of the corner component 130 protrudes beyond the outer edge of the first anti-collision part 121 and the outer edge of the second anti-collision part 122. When the corner component 130 is impacted, the corner component 130 moves within the corner region 123. When the corner component 130 contacts the first anti-collision part 121, it drives the first anti-collision part 121 to move by moving the first anti-collision part 121. Alternatively, when the corner component 130 contacts the second anti-collision part 122, it drives the second anti-collision part 122 to move by moving the first anti-collision part 121.

[0074] It should be noted that the anti-collision component 120 includes multiple anti-collision parts. For ease of description, one of any two intersecting and adjacent anti-collision parts is referred to as the first anti-collision part, and the other of any two intersecting and adjacent anti-collision parts is referred to as the second anti-collision part. The terms "first," "second," etc. are only for ease of description and have no other special meaning.

[0075] 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. The notch forms a corner area 123. It can be understood that the notch is used to avoid the corner component 130. In this way, the corner component 130 is movably disposed at the corner area 123, so that the corner component 130 can move within the corner area 123 when it is hit by a collision.

[0076] Referring to Figures 4 and 5, the first anti-collision part 121 has a first pushing part 1211 at the end facing the notch (i.e., the corner area 123), and the second anti-collision part 122 has a second pushing part 1221 at the end facing the notch. 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 comes into contact with the first pushing part 1211, it drives the first anti-collision part 121 to move, thereby driving the second anti-collision part 122 to move; or, when the corner assembly 130 comes into contact with the second pushing part 1221, it drives the second anti-collision part 122 to move, thereby driving the first anti-collision part 121 to move.

[0077] In other words, when the corner component 130 moves within the corner area 123, it can push the first anti-collision part 121 to move through the first pushing part 1211, thereby causing the first anti-collision part 121 to drive the second anti-collision part 122 to move; or, the corner component 130 can push the second anti-collision part 122 to move through the second pushing part 1221, thereby causing the second anti-collision part 122 to drive the second anti-collision part 121 to move.

[0078] Since the first pushing part 1211 is located at the end of the first anti-collision part 121 along its length and the second pushing part 1221 is located at the end of the second anti-collision part 122 along its length, the deformation of the first anti-collision part 121 or the second anti-collision part 122 can be reduced when the corner assembly 130 is impacted and comes into contact with the first pushing part 1211 or the second pushing part 1221.

[0079] In some embodiments, as shown in FIG4, a first collision sensor 151 is provided on the side of the first anti-collision part 121 near each corner component 130, and a second collision sensor is provided on the side of the second anti-collision part 122 near each corner component 130. For example, in FIG4, a collision sensor is provided on both sides of the corner of each corner component 130. In this way, when any position of the surface cleaning device 100 collides with the glass frame, it can be detected by the collision sensor, thereby improving the accuracy of collision detection.

[0080] In some embodiments, referring to FIG4, the minimum distance (denoted by D1) between the first collision sensor 151 and the corner assembly 130 is 1 / 7 to 1 / 5 of the length (denoted by H1) of the first anti-collision part 121; preferably, the minimum distance between the first collision sensor 151 and the corner assembly 130 is 1 / 6 of the length of the first anti-collision part 121; the minimum distance between the second collision sensor and the corner assembly is 1 / 7 to 1 / 5 of the length of the second anti-collision part; preferably, the minimum distance between the second collision sensor and the corner assembly is 1 / 6 of the length of the second anti-collision part.

[0081] For example, when the length of the anti-collision member 120 is 270mm, the distance between the collision sensor provided on the anti-collision member 120 and the corresponding corner component 130 is about 45mm. This can avoid the problem of the collision sensor being too close to the corner component 130 and being easily triggered falsely, and can also avoid the problem of the collision sensor being too far from the corner component 130 and having poor sensitivity. This improves the detection sensitivity of the collision sensor and solves the problem of the collision sensor being easily triggered falsely, thereby improving the user experience.

[0082] Referring to Figure 5, the surface cleaning device 100 further includes a first reset member 141 and a second reset member 142. The first reset member 141 is disposed 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 on the first anti-collision part 121 in the length direction is released, the first reset member 141 drives the corner assembly 130 to reset in the opposite direction, that is, drives the corner assembly... 130 moves away from the first anti-collision part 121; the second reset member 142 is disposed 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 on the length direction of the second anti-collision part 122 is released, the second reset member 142 is used to drive the corner assembly 130 to reset in the opposite direction, that is, drive the corner assembly 130 to move away from the second anti-collision part 122.

[0083] For example, the first reset member 141 and the second reset member 142 include, but are not limited to, springs, elastic pillars, elastic pads, elastic foam, etc., as long as they can reset the corner assembly 130 through their own elasticity, and there is no limitation here.

[0084] 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 thus avoiding the problem of deformation and damage to the anti-collision member 120.

[0085] In some embodiments, as shown in FIG5, the corner assembly 130 is rotatably connected to the anti-collision member 120. For example, the anti-collision member 120 defines a rotation axis, and the fixing member 131 is rotatably 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 around the rotation axis, so that when the corner assembly 130 is subjected to a collision impact force, it first moves a certain distance relative to the anti-collision member 120 around the rotation axis, and then drives the anti-collision member 120 to move.

[0086] In other embodiments, the corner component 130 is slidably connected to the anti-collision member 120. When the corner component 130 is subjected to an external force, the corner component 130 can slide relative to the anti-collision member 120 within a preset distance. In this way, the corner component 130 moves a first distance under the action of the collision impact force and then drives the anti-collision member 120 to move, so as to reduce the impact force on the anti-collision member 120.

[0087] For example, one of the corner assembly 130 and the anti-collision member 120 has a slide rail, and the other has a groove that matches the slide rail. The slide rail is configured to slide along the extension direction of the groove. For example, the fixing member 131 in the corner assembly 130 is provided with a slide rail, and the anti-collision member 120 has a groove that matches the slide rail along the movement direction of the corner assembly 130. In this way, when the corner assembly 130 is subjected to a collision impact force, the corner assembly 130 slides relative to the anti-collision member 120 along the groove to improve the accuracy and smoothness of the movement path of the corner assembly 130.

[0088] In addition, when the corner component 130 retracts towards the device body 110 under the impact force of the collision, a part of the structure of the corner component 130 always protrudes outward from the edge of the anti-collision member 120 away from the device body 110. That is, regardless of whether the corner component 130 collides with the glass frame, a part of the structure of the corner component 130 always protrudes outward from the outer contour of the anti-collision member 120 to avoid contact between the anti-collision member 120 and the glass frame, thereby further enhancing the protection of the anti-collision member 120.

[0089] In order to ensure that the corner component 130 protrudes beyond the outer contour of the anti-collision member 120 in any state, in this embodiment of the application, the distance by which the corner component 130 protrudes beyond the outer edge of the anti-collision member 120 in the length direction of the first anti-collision part 121 is greater than the limit distance by which the corner component 130 can move along the length direction of the first anti-collision part 121 within the corner region 123; the distance by which the corner component 130 protrudes beyond the outer edge of the anti-collision member 120 in the length direction of the second anti-collision part 122 is greater than the limit distance by which the corner component 130 can move along the length direction of the second anti-collision part 122 within the corner region 123.

[0090] In this way, when the corner component 130 retracts the anti-collision member 120 towards the device body 110, part of the structure of the corner component 130 always protrudes outward from the outer contour of the anti-collision member 120, so that the anti-collision member 120 always has a gap with the glass frame under any circumstances, so as to avoid direct contact between the anti-collision member 120 and the glass frame, thereby reducing the wear and deformation of the anti-collision member 120 due to collision.

[0091] In addition, the anti-collision component 120 can be made of a material with a certain strength and toughness to improve the impact resistance and strength of the anti-collision component 120.

[0092] In the surface cleaning device 100 provided in this application embodiment, the rag 114 is disposed at the bottom end of the base plate 112 in the device body 110. When the surface cleaning device 100 moves on the glass surface, the rag 114 can clean the glass surface. However, when the glass is framed glass, the glass frame cannot be cleaned, thereby affecting the user's user experience.

[0093] To address the aforementioned issues, the surface cleaning device 100 provided in this application embodiment further includes a frame cleaning member. At least a portion of the frame cleaning member protrudes beyond the contour of the anti-collision member 120 on the side opposite to the device body 110, such that the frame cleaning member forms the outermost surface of the surface cleaning device 100. Thus, when the surface cleaning device 100 moves along the glass frame, the frame cleaning member is used to clean the glass frame.

[0094] For example, the cleaning surface of the frame cleaner faces the glass frame, and the portion of the frame cleaner that protrudes beyond the outer contour of the anti-collision member 120 faces the glass frame, thereby improving cleaning efficiency.

[0095] In some embodiments, the frame cleaning member is disposed on the outer contour surface of the anti-collision member 120, so that the frame cleaning member can clean the glass frame when the surface cleaning device 100 travels along the glass frame.

[0096] In other embodiments, the frame cleaning component can be disposed on the rotating component 132 (i.e., the rolling surface) in the corner assembly 130. In this way, the frame cleaning component is formed as the outermost contour of the corner assembly 130. When the rotating component rolls along the glass frame, it drives the frame cleaning component to rotate synchronously. This allows the frame cleaning component to clean the glass frame while reducing the friction between the frame cleaning component and the glass frame, thereby extending the life of the frame cleaning component and reducing costs.

[0097] For example, the edge cleaning component includes, but is not limited to, a bristle-embedded component, i.e., the bristle-embedded component is formed as the outermost contour of the corner assembly, wherein the bristle-embedded component can be formed on the outer surface of the rotating component by means of spraying, adhesive, etc.

[0098] In order to reduce friction between the fixed and rotating parts and to improve the smoothness of the roller's rotation, in some embodiments, a bearing is provided between the fixed and rotating parts to enable the rotation of the rotating part; however, the relative rotation between the rotating part and the fixed part is achieved through the bearing, which has the problems of cumbersome and complicated disassembly and assembly and high cost.

[0099] Based on the above problems, in this embodiment of the application, as shown in Figures 6 to 10, a first rotating engagement portion 1311 is provided on the fixing member 131, and a second rotating engagement portion 1321 matching the first rotating engagement portion 1311 is provided on the rotating member 132. The second rotating engagement portion 1321 rotates with the first rotating engagement portion 1321, so that the rotating member 132 can rotate relative to the fixing member 131 around its own axis under the action of force. Furthermore, the first rotating engagement portion 1311 and the second rotating engagement portion 1321 have different hardnesses. Thus, in realizing the rotation of the rotating member 131... While rotating relative to the fixed part 131, the friction between the first rotating mating part 1311 and the second rotating mating part 1321 can be reduced. For example, the first rotating mating part 1311 can be one of a rotating shaft and a rotating hole, and the second rotating mating part 1321 can be the other of a rotating shaft and a rotating hole. Compared with the rotating part 132 being rotatably connected to the fixed part 131 through a bearing, the embodiment of this application realizes the rotation of the rotating part 132 through the first rotating mating part 1311 and the second rotating mating part 1321. At the same time, it is simple to assemble and disassemble and has low cost.

[0100] In some embodiments, as shown in Figures 8 and 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 fixed part 131 and can rotate relative to the fixed part 131. The hardness of the rotating shaft is less than the hardness of the hole wall of the rotating hole, thereby reducing the friction between the rotating shaft and the rotating hole.

[0101] In addition, the rotating component 132 is rotatably mounted on the fixed component 131 and is detachably connected to the fixed component 131 to avoid the problem of the rotating component 132 falling off the fixed component 131. It can be understood that after the rotating component 132 is detachably connected to the fixed component 131, the rotating component 132 can rotate relative to the fixed component 131 around its own axis, that is, the detachable connection between the rotating component 132 and the fixed component 131 does not affect the rotation of the rotating component 132.

[0102] In some embodiments, please continue to refer to Figures 8 to 10. The fixing member 131 has a first snap-fit ​​portion 1312, and the rotating member 132 has a second snap-fit ​​portion 1322 that matches the first snap-fit ​​portion 1312. The first snap-fit ​​portion 1312 is configured to snap-fit ​​with the first snap-fit ​​portion 1312. When the rotating member 132 rotates relative to the fixing member 131 under the action of force, the second snap-fit ​​portion 1322 is configured to move relative to the first snap-fit ​​portion 1312. That is to say, the rotating member 132 is detachably connected to the fixing member 131 by snap-fit. It is simple to assemble and disassemble, has a simple structure, low cost, and does not affect the rotation of the rotating member 132 after snap-fit.

[0103] For example, the first locking portion 1312 may be one of a locking protrusion and a locking groove extending along the rotation direction of the rotating member 132, and the second locking portion 1322 may be the other of a locking protrusion and a locking groove extending along the rotation direction of the rotating member 132. In this way, when the rotating member 132 rotates relative to the fixed member 131, the locking protrusion moves along the extension direction of the locking groove.

[0104] In some embodiments, the outer wall surface of the rotary shaft has one of a snap-fit ​​protrusion and a snap-fit ​​groove extending circumferentially along the rotary shaft, and the hole wall of the rotary hole has the other of a snap-fit ​​protrusion and a snap-fit ​​groove extending circumferentially along the rotary hole; when the rotary shaft is installed in the rotary hole, the snap-fit ​​protrusion is located in the snap-fit ​​groove, thus improving the structural compactness of the corner assembly 130, and the structure is simple, easy to implement, and low in cost.

[0105] For example, in Figures 8 to 10, the first rotating fitting part 1311 is a rotating shaft with a snap-fit ​​groove extending circumferentially along the outer wall of the rotating shaft. The second rotating fitting part 1321 is a rotary hole with a snap-fit ​​protrusion extending circumferentially along the hole wall. Since the rotating shaft passes through the rotary hole and the snap-fit ​​protrusion is located in the snap-fit ​​groove, in order to avoid interference between the rotating shaft and the snap-fit ​​protrusion when the rotating shaft passes through the rotary hole, there is a large gap between the outer wall of the rotating shaft and the hole wall of the rotary hole after the rotating shaft passes through the rotary hole. This results in radial wobbling when the rotating member 132 rotates around the fixed member 131, which in turn affects the stability of the rotating member 132 when it rotates.

[0106] Based on the above problems, in this embodiment of the application, at least one of the first rotating mating part 1311 and the second rotating mating part 1321 has at least two contact parts 1323 spaced apart along its circumference. When the first rotating mating part 1311 and the second rotating mating part 1321 are engaged with each other, the contact parts 1323 are configured to slide in contact with the other of the first rotating mating part 1311 and the second rotating mating part 1321, so as to reduce the radial gap between the first rotating mating part 1311 and the second rotating mating part 1321 through the contact parts 1323, thereby improving the problem of wobbling when the rotating member 132 rotates relative to the fixed member 131, and thus improving the stability of the rotating member 132 when it rotates.

[0107] For example, as shown in Figures 9 and 10, the second rotating fitting portion 1321 (rotary hole) has at least two contact portions 1323. The at least two contact portions 1323 are arranged at intervals along the circumference of the second rotating fitting portion 1321. The contact portions 1323 may be contact protrusions, so as to reduce the gap between the first rotating fitting portion 1311 and the second rotating fitting portion 1321 by the contact protrusions, and prevent the rotating member 132 from shaking relative to the fixed member 131 when it rotates.

[0108] In some embodiments, the surface of the end of the contact protrusion facing the first rotating mating part 1311 can be a smooth arc-shaped surface or a spherical surface, which can reduce the friction between the contact protrusion and the surface of the first rotating mating part 1311.

[0109] As an example, the wall of the rotary hole has a snap-fit ​​protrusion extending circumferentially thereon and at least two contact portions 1323 spaced apart circumferentially thereon. The size of the contact portions 1323 protruding from the wall of the rotary hole is smaller than the size of the snap-fit ​​protrusion protruding from the wall of the rotary hole. In this way, the gap between the rotary hole and the rotating shaft is reduced by the contact portions 1323, which improves the problem of wobbling when the rotating member 132 rotates. At the same time, the problem of interference between the contact portions 1323 and the rotating shaft can be avoided.

[0110] In another example, the surface of the contact protrusion facing the rotating shaft can be an arc-shaped groove that matches the rotating shaft, and the material of the contact protrusion can be a material with a certain elasticity. In this way, the contact protrusion can be released from the rotating shaft to further improve the gap between the contact protrusion and the rotating shaft, thereby further improving the stability of the rotating member 132 during rotation.

[0111] Please refer back to Figures 1 to 5. Since at least a portion of the structure of the rotating member 132 in the corner assembly 130 protrudes beyond the outer contour of the anti-collision member 120, when the surface cleaning device 100 moves along the glass frame, the rotating member 132 rolls into contact with the glass frame. The wiping cloth 114 is usually located at the bottom end of the base plate 112 in the device body 110, and the contour of the wiping cloth 114 coincides with the contour of the base plate 112. Therefore, when the surface cleaning device 100 moves along the glass frame and the rotating member 132 rolls with the glass frame, there is a certain gap between the contour of the wiping cloth 114 and the edge of the glass. This results in the problem of missing areas near the glass frame.

[0112] Based on the above problems, in this embodiment of the application, the corner component 130 further includes a corner cleaning component 160. The corner cleaning component 160 is disposed on the edge probing side of the device body 110, and at least a portion of the structure of the corner cleaning component 160 protrudes beyond the outer contour of the edge probing side of the device body 110, and protrudes beyond the outer contour of the boundary detector 134 in the direction perpendicular to the surface to be cleaned. When the corner cleaning component 160 moves with the surface cleaning device 100 to clean the surface to be cleaned, the boundary detector 134 abuts against the surface to be cleaned. That is to say, the corner cleaning component 160 does not affect the contact between the boundary detector 134 and the glass surface in the direction perpendicular to the glass surface, thereby improving the reliability of the boundary detector 134 in detecting changes in the position of the surface cleaning device 100. The portion of the corner cleaning component 160 protruding beyond the outer contour of the device body 110 can clean the missed areas near the edge of the glass as the surface cleaning device 100 moves, thereby improving the user experience.

[0113] In some embodiments, the dimension of the corner cleaning member 160 protruding from the outer contour of the device body 110 is not less than the dimension of the rotating member 132 protruding from the outer contour of the device body 110. In this way, the corner cleaning member 160 can completely cover the area between the outermost contour of the rotating member 132 and the outermost contour of the device body 110, so that the corner cleaning member 160 solves the problem of missed cleaning on the glass surface when cleaning the glass surface with the surface cleaning device 100.

[0114] To further improve the overall compactness of the surface cleaning device 100, in some embodiments, as shown in Figures 5, 6, 7 and 11, the corner cleaning component 160 is disposed on the rotating component 132, and at least a portion of the corner cleaning component 160 protrudes outward from the bottom end of the rotating component 132 along the axial direction of the rotating component 132, so that the corner cleaning component 160 can fully contact the glass surface, thereby improving the cleaning effect of the corner cleaning component 160 on the glass surface.

[0115] In some embodiments, when the corner cleaning member 160 is disposed on the rotating member 132, the corner cleaning member 160 is disposed on at least one side of the boundary detection member 134; however, when the corner cleaning member 160 is disposed on only one side of the boundary detection member 134, there may be a problem of missed cleaning along the path of the boundary detection member 134. Therefore, in this embodiment, as shown in Figures 5 to 7 and Figure 11, the corner cleaning member 160 is disposed around the outer periphery of the boundary detection member 134. In this way, the corner cleaning member 160 can clean any path that the boundary detection member 134 travels, so as to further reduce the missed cleaning area.

[0116] In some embodiments, the corner cleaning member has a plurality of cleaning portions 161, which are spaced apart at the bottom end of the rotating member 132, and each cleaning portion 161 protrudes outward from the bottom end of the rotating member 132. For example, the corner cleaning member may be a cleaning brush, that is, the cleaning portion 161 is a brush for cleaning, so as to clean the glass surface by the brush.

[0117] For example, as shown in Figures 5 and 6, multiple cleaning parts 161 form multiple cleaning groups, that is, multiple brush groups. The multiple cleaning groups are arranged sequentially and spaced apart from the center of the rotating member 132 to the outer periphery along the radial direction of the rotating member 132. Each cleaning group includes at least two cleaning parts 161, and at least two cleaning parts 161 in each cleaning group are arranged spaced apart along the circumference of the rotating member 132.

[0118] To further improve the cleaning effect and avoid the problem of missed cleaning between adjacent cleaning parts 161, please refer to Figures 5 and 6. The cleaning parts 161 in each cleaning group are staggered with the cleaning parts 161 in the adjacent cleaning group in the circumferential direction of the rotating member 132. This can increase the cleaning area and thus improve the phenomenon of missed cleaning.

[0119] To improve the installation reliability between the corner cleaning component 160 and the rotating component 132, in this embodiment of the application, as shown in FIG11, the bottom wall of the rotating component 132 has a groove recessed into the inner side of the rotating component 132. The corner cleaning component 160 is fixedly connected to the bottom of the groove, that is, multiple cleaning parts 161 are respectively disposed in the groove and fixedly connected to the bottom of the groove. Part of the cleaning part 161 protrudes from the bottom wall of the rotating component 132 so that the cleaning part 161 protruding from the bottom of the rotating component 132 contacts the glass surface to achieve the purpose of cleaning the glass surface.

[0120] In some embodiments, the corner cleaning member 160 may deform. When the corner cleaning member 160 comes into contact with the surface to be cleaned (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 it comes into contact with the glass surface. This ensures that when the surface cleaning device 100 moves on the glass surface, the boundary detection member 134 always comes into contact with the glass surface, thus ensuring the reliability of the boundary detection member 134.

[0121] For example, as shown in Figures 7 and 11, the corner cleaning component 160 is a cleaning brush with a structure protruding from the bottom end of the device body 110. When suspended, the size of the protrusion from the bottom end of the device body 110 is 1.5mm to 2mm. When the boundary detection component 134 abuts against the glass surface, the size of the protrusion from the bottom end of the device body 110 (i.e., the bottom end of the base plate 112) of the boundary detection component 134 is, for example, 1mm to 1.5mm. For example, when the boundary detection component 134 abuts against the glass surface, the size of the protrusion from the bottom end of the device body 110 (i.e., the bottom end of the base plate 112) of the boundary detection component 134 is equal to the size of the corner cleaning component 160 after it protrudes from the bottom end of the device body 110 and is deformed. In this way, while ensuring that the corner cleaning component 160 cleans the glass surface, it can avoid interference between the deformation of the corner cleaning component 160 and the corner detection component in the horizontal direction, thereby avoiding the corner cleaning component 160.

[0122] In some embodiments, the deformability of the cleaning part 161 decreases sequentially along the direction from the surface of the cleaning part 161 facing the glass to the surface away from the glass, that is, the hardness of the cleaning part 161 increases sequentially, so that the cleaning part 161 has sufficient strength while cleaning the glass surface, and avoids excessive deformation of the cleaning part 161 that would affect the cleaning effect.

[0123] To further enhance the strength of the cleaning part 161 near the bottom of the groove (i.e., the root of the brush), the cleaning part 161 has a reinforcing member at the end near the bottom of the groove. The reinforcing member is embedded in the cleaning part 161 near the bottom of the groove. For example, the reinforcing member can be made of a material with a certain strength, such as metal, embedded inside the cleaning part 161. The cleaning part 161 can be a silicone rod, rubber rod, or cleaning brush that can clean the glass surface.

[0124] In addition, the cross-sectional dimension of the cleaning part 161 is less than or equal to 0.1 mm. For example, the cross-sectional dimension of the cleaning part 161 is 0.9 mm, so that the cleaning part 161 has a certain strength while satisfying the cleaning effect, thereby extending the service life of the cleaning part 161.

[0125] Referring to Figures 2 and 12, in the surface cleaning device 100 provided in this embodiment, the walking component 200 can be a track 210 component. The track 210 component includes a drive wheel 220, a driven wheel 230, and a track 210. The drive 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. The track 210 is wound around the drive wheel 220 and the driven wheel 230. Thus, when the motor drives the drive wheel 220 to rotate, the drive wheel 220 drives the driven wheel 230 to move through the track 210. The track 210 contacts the glass surface, so that the surface cleaning device 100 walks along the glass surface through the track 210.

[0126] When cleaning glass surfaces, users typically spray water onto the surface or moisten a cloth 114 before cleaning. Alternatively, as shown in Figure 13, the glass surface cleaning device 100 has a built-in water tank 180. The front and rear sides of the surface cleaning device 100 are equipped with spray nozzles connected to the water tank 180. Water from the tank 180 can be sprayed onto the glass surface through these nozzles. When the surface cleaning device 100 moves forward, the nozzle at the front sprays water onto the glass, performing wet cleaning. Conversely, when the surface cleaning device 100 moves backward, the nozzle at the rear sprays water onto the glass, performing wet cleaning. This improves the cleaning effect on the glass surface.

[0127] However, if there are contaminants or wastewater on the glass surface, when the track 210 contacts the glass surface and walks along the glass surface, the contaminants or wastewater 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. Furthermore, if there are contaminants stuck on the track 210, it will also affect the smoothness of the track 210 walking on the glass surface.

[0128] Based on the above problems, in this embodiment of the application, as shown in FIG12, the surface cleaning device 100 further includes a scraper 170, which is disposed at least on the front side of the traveling assembly 200 and detachably connected to the device body 110 along the traveling direction of the device body 110. A portion of the structure of the scraper 170 protrudes outward from the bottom wall of the device body 110 along the width of the device body 110 and can deform when it comes into contact with the glass surface. The dimension of the scraper 170 in the width direction of the device body 110 is larger than the dimension of the traveling assembly 200 in the width direction of the device body 110. When the device body 110 travels along the surface to be cleaned, the scraper 170 seals against the surface to be cleaned and moves along the surface to be cleaned to prevent contaminants on the surface to be cleaned from contacting the traveling assembly 200.

[0129] It is understood that, in this embodiment of the application, by providing a scraper 170 at least on the front side of the walking component 200, the scraper 170 first scrapes away contaminants and sewage on the glass surface when the surface cleaning device 100 moves forward. The scraped contaminants and sewage are isolated on the side of the scraper 170 away from the walking component 200, so as to prevent contaminants or sewage on the glass surface from contacting the walking component 200 and sticking to the walking component 200. This avoids contamination of the walking component 200 and affects the normal walking of the walking component 200, thereby improving the walking comfort of the walking component 200 and avoiding secondary contamination of the surface to be cleaned by the walking component 200, and thus improving the cleaning effect of the surface to be cleaned.

[0130] Referring to Figure 12, the walking assembly 200 is equipped with wipers 170 on both the front and rear sides. When the surface cleaning device 100 moves forward, the wipers 170 on the front side first scrape off contaminants or sewage on the surface of the glass on the front side of the walking assembly 200. When the surface cleaning device 100 moves backward, the wipers 170 on the rear side first scrape off contaminants or sewage on the surface of the glass on the rear side of the walking assembly 200. In this way, whether the walking assembly 200 moves forward or backward, it will not come into contact with contaminants or sewage on the glass surface, further improving the isolation effect between the walking assembly 200 and the contaminants, thereby improving the cleaning effect on the glass surface.

[0131] It is understood that a contaminant isolation zone is formed between the two wipers 170 along the walking direction of the walking assembly 200. When the surface cleaning device 100 moves forward or backward, the wipers 170 are configured to isolate contaminants outside the contaminant isolation zone, preventing contaminants or sewage from sticking to the track 210.

[0132] In addition, along the width direction of the surface cleaning device 100, which is, for example, a direction perpendicular to the travel direction of the surface cleaning device 100, the width of the scraping area is greater than the width of the travel assembly 200. That is to say, the front and rear scraping elements 170 completely isolate the contaminants on the front and rear sides of the travel assembly 200 outside the scraping area.

[0133] For example, the wiper 170 can be a wiper blade, which can be made of a material with a certain degree of elasticity, such as silicone or rubber.

[0134] In this way, when the device body 110 moves along the surface to be cleaned, the part of the wiper 170 that protrudes from the bottom wall of the device body 110 bends toward the side of the moving assembly 200 under the contact force of the surface to be cleaned (as shown in Figure 14) and seals against the surface to be cleaned, so as to isolate the contaminants on the side of the wiper 170 away from the moving assembly 200, thereby improving the isolation effect of the contaminants.

[0135] In some embodiments, please continue to refer to FIG14. 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 assembly 200 and the wiper 170 are both installed in the receiving cavity, and a portion of the structure of the traveling assembly 200 and the wiper 170 protrudes outward from the bottom plate 112 through the clearance notch 113. Along the traveling direction of the traveling assembly 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 portion of the wiper 170 protruding from the bottom plate 112, so that the portion of the wiper 170 protruding from the bottom plate 112 has clearance space, preventing interference between the bottom end of the wiper 170 and the opening wall of the clearance notch 113 when deformed, thus affecting the sealing performance with the glass surface.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] As shown in Figure 15, 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 can be provided on the first fixing part 171 and a magnet can also be 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.

[0140] Furthermore, from the direction away from the glass surface to the direction closer to the glass surface, at least one of the hardness and thickness of the wiper 170 decreases sequentially, while the deformability increases sequentially. That is, the hardness of the top end of the wiper 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 wiper 170 is greater than the thickness of the bottom end, so as to facilitate the deformation of the bottom end of the wiper 170. In this way, while ensuring the wiper effect and the sealing performance when in contact with the glass surface, the strength of the wiper 170 can also be improved, thereby improving the working reliability and service life of the wiper 170.

[0141] Referring to Figure 15, the wiper component 170 includes a first portion 172 and a second portion 173 connected in sequence. The first portion 172 protrudes outward from the bottom wall of the device body 110, and the second portion 173 is located inside the device body 110. The width of the first portion 172 is smaller than the width of the second portion 173. Along the width direction of the wiper component 170, the connection points between the side walls on both sides of the second portion 173 and the side walls on both sides of the first portion 172 have stress-resistant structures 174. By providing stress-resistant structures 174, the risk of stress concentration and breakage at the corners of the first portion 172 and the second portion 173 can be prevented. For example, in Figure 15, the stress-resistant structure 174 is an arc-shaped structure, such as a circular arc structure, to reduce stress concentration at the edge corners of the first portion 172 and the second portion 173, thereby extending the service life of the wiper component 170.

[0142] Referring to Figure 14, the surface cleaning device 100 provided in this embodiment of the application is provided with a water tank 180. The water tank 180 has a liquid-containing cavity, which stores cleaning water for cleaning glass. The water in the water tank 180 can be tap water or a solution with added detergent, fragrance or additives to decompose dirt, etc., which are collectively referred to as water in this embodiment of the application.

[0143] The water tank 180 is usually located inside the surface cleaning device 100, and the water inlet 181 for filling the water tank 180 is located on the top of the water tank 180 (as shown in Figures 16 to 19). This makes it impossible for the user to know the amount of water in the water tank 180, which leads to the user not being able to determine when to add water, resulting in a poor user experience.

[0144] To facilitate users' understanding of the water level in the water tank 180, particularly in determining whether the water tank 180 is low on water, in this embodiment of the application, as shown in Figure 20, a viewing window is provided on the top of the water tank 180, and a floating element 183 is provided inside the water tank 180. The floating element 183 can float up and down in the water tank 180 according to the change of the liquid level in the water tank 180. That is to say, the position of the floating element 183 in the water tank 180 indicates the water level in the water tank 180. In this way, the user can observe the position of the floating element 183 through the viewing window to determine whether the water tank 180 needs to be filled. For example, when the floating element 183 is close to the top of the water tank 180, it means that the water tank 180 is full and no water needs to be added. If the floating element 183 is located at the bottom of the water tank 180, it means that the water tank 180 is low on water and needs to be filled.

[0145] For example, the floating element 183 may be a structure such as a float or a buoy that can float on the water surface.

[0146] To further ensure that the floating component 183 is within the visible range of the viewing 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 component 183. The floating component 183 is located within the floating space 182 and floats up and down with the change of liquid level in the floating space 182. In this way, the floating component 183 can be prevented from shifting randomly in the water tank 180 and affecting its visibility.

[0147] In some embodiments, the viewing window is set at a position corresponding to the floating space 182 to improve the reliability of observing the floating component 183 in the floating space 182 through the viewing window. In addition, the color of the floating component 183 is different from the color of the water and the water tank 180. For example, the color of the floating component 183 is a more eye-catching red, yellow, green, etc., as long as it can be easily observed by the user, and there is no limitation here.

[0148] Since the floating space 182 is relatively small, in order for the floating member 183 to float up and down with the change of liquid level in the floating space 182, in this embodiment of the application, the size of the floating member 183 in the first direction is larger than the size in the second direction. The first direction is consistent with the height direction of the liquid cavity, and the second direction has an 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 a small liquid buoyancy, thereby ensuring that the water level in the water tank 180 can be accurately controlled by the floating member 183.

[0149] For example, the dimension 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 may be an elliptical float.

[0150] In addition, in order to further improve the smoothness of the floating component 183 floating up and down, in this embodiment of the application, the top dimension of the floating space 182 in the second direction is larger than the bottom dimension 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 sequentially. In this way, the problem of jamming when the floating component 183 floats up and down can be prevented.

[0151] In some embodiments, the gap between the outer contour of the floating member 183 and the sidewall of the floating space 182 is 0.2mm to 0.3mm, so that the floating member 183 can float smoothly up and down in the floating space 182 with the change of liquid level, without causing the lateral gap to be too large and drifting arbitrarily laterally.

[0152] It is understood that, in the embodiments of this application, by forming the cross-sectional profile of the floating space 182 to match the cross-sectional profile of the floating member 183, the floating space 182 can guide the up and down floating of the floating member 183. Furthermore, by forming the floating member 183 into an elliptical float structure, the smoothness of the floating member 183 floating up and down with the liquid surface can be further improved.

[0153] To further improve the stability of the floating component 183 floating on the liquid surface, in this embodiment of the application, the surface of the floating component 183 has a hydrophobic film. The hydrophobic film is configured to overcome the tension of the liquid on the surface of the floating component 183, thereby improving the stability and reliability of the floating component 183 floating on the liquid surface.

[0154] In addition, in order to further improve the stability and reliability of the floating component 183 floating on the liquid surface, in this embodiment of the application, the weight of the floating component 183 is 0.2g to 0.3g, so as to avoid the floating component 183 being too heavy and affecting the stability and reliability of the floating component 183 floating on the liquid surface.

[0155] In some embodiments, the top of the water tank 180 has a water inlet 181, and the water inlet 181 is provided with an openable and closable water inlet cover 190. The water inlet cover 190 is connected to the water tank 180 through a guide rod, which can move vertically relative to the water tank 180 so that the water inlet cover 190 is closed at 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 to add water 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 through the water inlet cover 190.

[0156] In addition, the viewing window can be set on the water filling cover 190, which facilitates the processing and manufacturing of the viewing window, reduces the difficulty of its preparation, and thus reduces processing costs.

[0157] This application also provides a cleaning system, which includes a base station and the surface cleaning device provided in the above embodiments. The base station and the surface cleaning device can be electrically connected via cables to supply power to the surface cleaning device.

[0158] Furthermore, the structure and working principle of the surface cleaning device have been described in detail in the above embodiments, and will not be repeated here.

[0159] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0160] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0161] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0162] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A surface cleaning device, comprising: The device body (110) and the adsorption assembly (300) disposed on the device body (110) are characterized in that the adsorption assembly (300) is used to adsorb the surface cleaning device onto the surface to be cleaned; the device body (110) includes an upper cover (111) and a bottom plate (112), the upper cover (111) and the bottom plate (112) together form a receiving cavity, and the bottom plate (112) has an avoidance notch (113); The surface cleaning device further includes: A walking assembly (200) is disposed on the device body (110), and the device body (110) moves on the surface to be cleaned by means of the walking assembly (200); In the direction of travel of the device body (110), at least a portion of the wiper (170) is disposed on the front side of the travel assembly (200); The walking assembly (200) and the wiper (170) are both installed in the accommodating cavity, and a portion of the structure of the walking assembly (200) and the wiper (170) protrudes outward from the outside of the base plate (112) through the clearance notch (113); When the device body (110) moves along the surface to be cleaned, the wiper (170) bends and deforms and seals against the surface to be cleaned, and moves along the surface to prevent contaminants on the surface to be cleaned from contacting the moving assembly (200).

2. The surface cleaning device according to claim 1, characterized in that, Along the travel direction of the travel assembly (200), there is a gap between the scraper (170) and the wall of the clearance notch (113).

3. The surface cleaning device according to claim 2, characterized in that, Along the walking direction of the walking assembly (200), the gap between the wiper (170) and the opening wall of the clearance notch (113) is greater than the deformation of the wiper (170) protruding from the base plate (112).

4. The surface cleaning device according to claim 2, characterized in that, The device body (110) also includes a rag (114), which is disposed at the bottom end of the base plate (112), and at least part of the rag (114) surrounds the outer periphery of the clearance notch (113).

5. The surface cleaning apparatus according to any one of claims 1-4, characterized in that, Along the walking direction of the walking assembly (200), the walking assembly (200) is provided with a wiper (170) on both the front and rear sides, and a contaminant isolation zone is formed between the two wipers (170). When the surface cleaning device moves forward or backward, the wiper (170) is configured to isolate the contaminants outside the contaminant isolation zone.

6. The surface cleaning apparatus according to any one of claims 1-4, characterized in that, The end of the scraper (170) has a first fixing part (171), and the accommodating cavity has a second fixing part. The first fixing part (171) and the second fixing part are detachably connected.

7. The surface cleaning apparatus according to any one of claims 1-4, characterized in that, The hardness and thickness of the wiper (170) decrease sequentially from the direction away from to the direction of the surface to be cleaned, and the deformability increases sequentially.

8. The surface cleaning apparatus according to any one of claims 1-4, characterized in that, The dimension of the scraper (170) in the width direction of the device body (110) is not less than the dimension of the walking assembly (200) in the width direction of the device body (110).

9. A cleaning system, characterized in that, Includes a base station and a surface cleaning device as described in any one of claims 1-8.