Window cleaning robot

Abstract

The utility model relates to a window cleaning robot, include: machine body is configured to be able to adsorb to the face to be cleaned and moves along the face to be cleaned, the water scraping part is set up in the side of machine body, machine body is configured to be able to walk towards the direction where water scraping part is located, to make water scraping part can scrape the liquid of face to be cleaned, wherein, water scraping part has the direction of the oblique extension flow guide structure that inclines away from the side wall of machine body, the utility model discloses the oblique extension flow guide structure that sets up through water scraping part, the oblique surface of flow guide structure exerts a diagonal force to the cleaning liquid that slides downward along the face to be cleaned under gravity, promotes droplet to migrate to the working area of water scraping part along the oblique surface reverse, like this, both improve the cleaning liquid utilization rate, and then improve the cleaning effect of product, avoid the pollution of window frame and so on four around caused by liquid disorder diffusion, improve the use experience of product.

Description

Technical Field

[0001] This utility model relates to the field of window cleaning robots, and in particular to a window cleaning robot. Background Technology

[0002] Most mainstream window cleaning robots currently clean glass by wiping it with a rotating cloth at the bottom. During operation, in order to ensure the cleaning effect, the cloth needs to be washed frequently to avoid secondary pollution of the glass by the already dirty cloth. This results in low cleaning efficiency, cumbersome operation, and poor user experience.

[0003] To address the above issues, existing technology proposes a window cleaning robot equipped with a squeegee. The squeegee scrapes away cleaning liquid and stains from the glass surface to achieve the purpose of cleaning the glass. This eliminates the need for frequent wiping of the cloth, is less likely to leave watermarks, provides better cleaning results, and is more convenient to operate.

[0004] However, these window cleaning robots equipped with squeegees require the liquid, such as water or detergent, to be sprayed onto the surface to be cleaned before use. This cleaning liquid will continuously fall due to gravity. On the one hand, the cleaning liquid stays on the surface for a short time, resulting in limited wetting and cleaning effects. On the other hand, the dripping liquid can cause secondary pollution to areas such as window frames, leading to a poor user experience. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a window cleaning robot, which aims to solve at least one of the problems of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a window cleaning robot, comprising:

[0008] The main body of the machine is configured to adhere to the surface to be cleaned and move along the surface to be cleaned.

[0009] A wiping unit is located on the side of the main body of the machine, and the main body of the machine is configured to move toward the location of the wiping unit so that the wiping unit can remove liquid from the surface to be cleaned.

[0010] A water spray system is installed on the machine body and configured to spray liquid in front of the wiper section;

[0011] The wiper section has one or more flow guiding structures configured to direct the liquid sprayed by the water spray system from a lower position relative to gravity to a higher position.

[0012] In the above technical solution, the wiper part has a wiping surface, at least a portion of which is inclined relative to the side wall of the machine body, and the inclined portion of the wiping surface defines the flow guiding structure.

[0013] In any of the above technical solutions, along the length direction of the wiper section, the wiper section is inclined with one end close to the machine body and the other end away from the machine body.

[0014] In any of the above technical solutions, the wiper part is rotatably connected to the main body, and the wiper part is configured to rotate relative to the side wall of the main body so that it is parallel to or inclined relative to the side wall of the main body.

[0015] In any of the above technical solutions, the wiper part has multiple tilt angles relative to the side wall of the machine body.

[0016] In any of the above technical solutions, the window cleaning robot also includes:

[0017] A drive system, connected to the wiper unit, is configured to drive the wiper unit to rotate relative to the side wall of the machine body.

[0018] In any of the above technical solutions, the drive system includes:

[0019] Drive motor;

[0020] The transmission gear set is connected to the drive motor. The wiper part has an extension arm at the middle position. The extension arm is rotatably connected to the machine body. The extension arm has a gear structure. The transmission gear set and the gear structure mesh. The drive motor drives the transmission gear set to drive the gear structure to rotate.

[0021] In any of the above technical solutions, the wiper part is provided in at least two positions on the machine body, and the rotation of each wiper part is relatively independent;

[0022] The drive system has the same number of drive units as the wiper units, each drive unit being connected one-to-one with a wiper unit, and the drive unit being configured to drive the wiper unit connected to it.

[0023] In any of the above technical solutions, the machine body is provided with an attitude adjustment system, and the attitude adjustment system is configured to adjust the machine body to a target working attitude;

[0024] When the machine body is in the target working posture, the wiper extends in the vertical direction, and the lower end of the flow guide structure is farther from the side wall of the machine body than the upper end.

[0025] In any of the above technical solutions, the water outlet of the water spray system is located above the flow guiding structure.

[0026] In any of the above technical solutions, the wiper section is provided at two opposite positions of the machine body.

[0027] In any of the above technical solutions, the two wiper sections are arranged symmetrically with respect to the central axis of the machine body.

[0028] The window cleaning robot provided by this utility model has a flow guiding structure that can direct the liquid sprayed by the water spraying system from a lower position relative to the direction of gravity to a higher position. In other words, the flow guiding structure can apply an upward force to the cleaning liquid that slides downward along the surface to be cleaned under the influence of gravity, causing the droplets to migrate in the opposite direction to the working area of ​​the wiping part. This not only improves the utilization rate of the cleaning liquid and thus improves the cleaning effect of the product, but also avoids the disorderly diffusion of liquid causing the window frame and other surrounding areas to be contaminated, thus improving the user experience of the product. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the front view structure of a window cleaning robot according to an embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural diagram of a window cleaning robot proposed in an embodiment of the present invention, viewed from one perspective.

[0031] Figure 3 This is a three-dimensional structural diagram of a window cleaning robot proposed in one embodiment of the present invention from another perspective;

[0032] Figure 4 This is a schematic diagram of the front view structure of a window cleaning robot proposed in another embodiment of the present invention;

[0033] Figure 5 This is a top view of the wiper unit according to an embodiment of the present invention.

[0034] The correspondence between the reference numerals and the component names is as follows:

[0035] 10. Window cleaning robot; 100. Main body; 110. Housing; 120. Adsorption system; 130. Walking system; 200. Wiper; 201. Wiper surface; 210. Mounting carrier; 220. Wiper strip; 230. Convex and concave structure; 240. Extension arm; 241. Rotating connection; 300. Cleaning cloth; 400. Water spraying system. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0038] The following is a reference to the appendix. Figure 1 To be continued Figure 5 This invention describes a window cleaning robot 10 according to some embodiments of the present invention.

[0039] like Figure 1 and Figure 2 As shown in the figure, an embodiment of the present invention proposes a window cleaning robot 10, which includes a body 100, a wiping unit 200 and a water spraying system 400.

[0040] The main body 100 can adhere to the surface to be cleaned (such as windows, walls, etc.) and move along the surface. More specifically, as... Figure 1 and Figure 2 As shown, the robot body 100 includes a housing 110, an adsorption system 120, and a walking system 130. The adsorption system 120 is located inside the housing 110 and can employ any adsorption method, such as negative pressure adsorption, magnetic adsorption, or adhesive adsorption, as long as the robot body 100 is adsorbed onto a vertical or inclined surface to be cleaned. The walking system 130 is located at the bottom of the housing 110 and includes walking execution components and a walking drive system for driving these components. The walking execution components can employ any walking method, such as tracks or wheels, and, driven by the corresponding walking drive system, enable the robot to walk or turn along the surface to be cleaned.

[0041] The wiper unit 200 is located on the side of the main body 100, and the main body 100 is configured to move toward the location of the wiper unit 200 so that the wiper unit 200 can wipe away liquid from the surface to be cleaned.

[0042] The water spray system 400 is installed on the main body 100 and configured to spray liquid towards the front of the wiper unit 200, such as... Figure 3 As shown, the 400 water spray system automatically sprays liquid, ensuring that the cleaning liquid accurately covers the area to be wiped, eliminating the need for manual water spraying and avoiding problems such as spray deviation or uneven coverage caused by manual operation.

[0043] The wiper unit 200 has one or more flow guiding structures configured to direct the liquid sprayed by the water spray system 400 from a lower position relative to gravity to a higher position.

[0044] In detail, the main body 100 has six positions: front, back, left, right, up, and down. The lower position of the main body 100 faces the surface to be cleaned. The wiping unit 200 can be set in any position of the main body 100, including front, back, left, and right. When the window cleaning robot 10 is on the surface to be cleaned, the wiping unit 200 is configured to rest against the surface. The walking system 130 can drive the main body 100 to walk on the surface to be cleaned, thereby causing the wiping unit 200 to also move on the surface to be cleaned, so as to remove cleaning liquid, stains, and dust from the surface to be cleaned.

[0045] The flow guiding structure directs the liquid sprayed by the water spray system from a lower position relative to gravity to a higher position. In other words, the flow guiding structure can apply an upward force to the cleaning liquid that slides downward along the surface to be cleaned under the influence of gravity, causing the droplets to migrate in the opposite direction to the working area of ​​the wiper section 200. This not only improves the utilization rate of the cleaning liquid and thus improves the cleaning effect of the product, but also avoids the disorderly diffusion of liquid, which can cause contamination of the window frame and other surrounding areas, thus improving the user experience of the product.

[0046] Regarding the structure of the wiping unit 200, in detail, the wiping unit 200 includes a mounting carrier 210 and a wiping strip 220. The mounting carrier 210 is movably connected to the main body 100, and the wiping strip 220 is disposed on the mounting carrier 210. The wiping strip 220 is made of soft rubber, such as silicone or rubber. The soft rubber has a certain elastic deformation ability, which can better resist the surface to be cleaned and can wipe away liquids (water, cleaning fluid, stains, etc.) from the surface to be cleaned, leaving less watermarks and stains, and achieving better cleaning results. The wiper blade 220 has an abutting end facing the surface to be cleaned and a connecting end opposite to the abutting end. The mounting carrier 210 is connected to the connecting end to provide support for the wiper blade 220, preventing the wiper blade 220 from deforming under force during machine movement and affecting the wiping effect. The abutting end extends out of the mounting carrier 210, so that when the wiper blade 220 abuts against the surface to be cleaned, there is a gap between the mounting carrier 210 and the surface to be cleaned. This avoids the mounting carrier 210 from creating resistance to the robot's movement and also avoids the mounting carrier 210 from scratching or contaminating the surface to be cleaned and generating noise.

[0047] Furthermore, the wiper unit 200 also includes a convex-concave structure 230 disposed on the mounting carrier 210. The convex-concave structure 230 is located in front of the wiper strip 220 and has a gap between it and the wiper strip 220. For example, the end of the convex-concave structure 230 facing the surface to be cleaned is wavy, serrated, or has an array of protrusions. In this way, when the wiper unit 200 abuts against the surface to be cleaned, a portion of the protrusions in the convex-concave structure 230 can abut against the surface to be cleaned, and a portion of the concave part has a gap between it and the surface to be cleaned. Thus, during the robot's movement, combined with the effect of gravity, the liquid can be separated into multiple streams by the protrusions in the convex-concave structure 230 and then pass through the concave part of the convex-concave structure 230 and the wiper strip 220 structure, realizing the sorting and dispersion of the cleaning liquid by the convex-concave structure. This allows the liquid to be more evenly distributed in the area corresponding to the wiper strip 220, avoiding uneven spraying of cleaning liquid and the situation where cleaning liquid accumulates on the surface to be cleaned, further improving the cleaning effect of the wiper strip 220.

[0048] Regarding the flow guiding structure, in some embodiments, the wiper portion 200 has a wiping surface 201, at least a portion of which is inclined relative to the side wall of the body 100, and the inclined portion of the wiping surface 201 defines the flow guiding structure. For example, one end of the wiper portion 200 can be designed to be bent outward to form an inclined flow guiding structure, so that after the wiper portion 200 is mounted on the body 100, a portion of the wiper portion 200 remains substantially parallel to the side wall of the body 100, while the flow guiding structure is inclined to the side wall of the body 100.

[0049] Understandably, the window cleaning robot 10 can be driven by its walking system 130 to move in all directions, including up, down, left, and right. When the window cleaning robot 10 is driven by the walking system 130 to move in a roughly lateral (i.e., left-right) direction, the wiping section 200 extends roughly in the direction of gravity, and the inclined portion on the wiping surface 201 defines the flow guiding structure, that is, the flow guiding structure is inclined in the direction of gravity. When the window cleaning robot 10 is driven by the walking system 130 to adjust its posture so that the flow guiding structure is located in a position where the gravity of the wiping section 200 is lower, the inclined surface of the flow guiding structure can apply an upward force to the cleaning liquid that slides downward along the surface to be cleaned under the influence of gravity, causing the droplets to migrate in the opposite direction along the inclined surface to the working area of ​​the wiping section 200. This not only improves the utilization rate of the cleaning liquid, thereby improving the cleaning effect of the product, but also avoids the disorderly diffusion of liquid causing contamination of the window frame and other surrounding areas, thus improving the user experience of the product.

[0050] Furthermore, by integrally molding the flow guide structure into the wiper section 200, the portion of the wiper section 200 that is inclined relative to the side wall of the main body 100 directly constitutes the flow guide structure, eliminating the assembly process of independent flow guide components, simplifying the overall structure, and at the same time, the wiper surface 201 and the flow guide structure can transition continuously and smoothly, which can reduce the risk of stains forming at the junction of the two structures.

[0051] Of course, the above is only a preferred embodiment of the present invention. In other embodiments, the flow guiding structure can also be designed as an independent component that can be installed on the wiper part 200. Furthermore, the independent flow guiding structure can be designed to be detachably connected to the wiper part 200.

[0052] In one specific embodiment, along the length of the wiper section 200, the wiper section 200 is inclined at one end near the machine body 100 and the other end away from the machine body 100. By installing the wiper section 200 at an overall inclination, the wiper section 200 is tilted relative to the side wall of the machine body 100, resulting in a simpler structure, reduced manufacturing difficulty, and easier maintenance of the tilt angle. Simultaneously, the wiper section 200 maintains a continuous and consistent tilt angle, and the entire wiper surface 201 is formed as a flow guide structure, extending the length of the flow guide structure. The entire wiper surface 201 can generate an upward oblique thrust on the cleaning liquid sliding down the surface to be cleaned, thus blocking the downward flow of the cleaning liquid over a larger area.

[0053] Furthermore, the wiper unit 200 is rotatably connected to the main body 100, and the wiper unit 200 is configured to rotate relative to the side wall of the main body 100 so that it is parallel to or tilted relative to the side wall of the main body 100.

[0054] In this embodiment, the wiper unit 200 can rotate relative to the side wall of the main body 100 around the rotation axis. It can switch to a storage state parallel to the side wall of the main body 100, or to an inclined guiding working state. This design allows the wiper unit 200 to significantly reduce its overall size by retracting to the side wall of the main body 100 when not in operation, making it easier to store and reducing the risk of collision damage during transportation and storage. When cleaning, the wiper unit 200 can be rotated to keep it in an inclined state relative to the side wall of the main body 100, ensuring that the wiper unit 200 can apply a continuous and stable upward oblique thrust to the sliding liquid.

[0055] To explain further, such as Figure 5 As shown, the wiper unit 200 is provided with a rotating connection part 241, which is rotatably connected to the main body 100, so that the wiper unit 200 can rotate relative to the main body 100 with the rotating connection part 241 as the rotation reference. The rotating connection part 241 can be one of a rotating shaft and a rotating hole, and the main body 100 is provided with the other of a rotating shaft and a rotating hole. The rotating connection part 241 can be located at the middle position of the wiper unit 200 or at the end position of the wiper unit 200.

[0056] It is worth noting that the rotation of the wiper unit 200 can be manually controlled or driven by a drive device, thereby improving the automation of the product.

[0057] Furthermore, the wiper unit 200 has multiple tilt angles relative to the side wall of the main body 100. This allows the wiper unit 200 to be reliably locked at multiple predetermined tilt angle positions, flexibly selecting the optimal guiding posture for cleaning liquids of different viscosities or window tilt angles, significantly improving the wiper unit 200's resistance efficiency to cleaning liquids. At the same time, by changing the tilt angle of the wiper unit 200, the distance between the wiper unit 200 and the window frame can be adjusted, thereby better wiping the surfaces to be cleaned near the window.

[0058] For example, one of the wiper unit 200 and the main body 100 is provided with an arc-shaped guide structure, and the other is provided with a guide engagement structure. The guide engagement structure and the arc-shaped guide structure slide together to guide the rotation of the wiper unit 200. The arc-shaped guide structure is provided with multiple locking positions. The guide engagement structure slides to any one of the locking positions, and each locking position corresponds to a different rotation angle, thereby achieving multiple tilt angles of the wiper unit 200 relative to the main body 100.

[0059] In one specific embodiment, the window cleaning robot 10 also includes a drive system connected to the squeegee 200. The drive system is configured to drive the squeegee 200 to rotate relative to the side wall of the main body 100. The drive system enables the product to be automated and intelligent. Compared with the manual adjustment method, the rotation angle of the squeegee 200 driven by the drive system is more precise and reliably locked, eliminating the angle deviation problem of manual adjustment. At the same time, the rotation angle of the squeegee 200 can be adjusted in real time by controlling the driving torque of the drive system, thereby adjusting the tilt angle of the squeegee 200 relative to the side wall of the main body 100. This ensures that the guide structure always generates a stable upward thrust in the optimal tilt posture. The squeegee 200 can also be retracted to a state parallel to the side wall of the main body 100 in time according to the position of the window frame. This not only enables obstacle avoidance but also allows for better wiping and cleaning of the surfaces to be cleaned near the window frame, leaving no cleaning dead corners.

[0060] Furthermore, the main body 100 is provided with wiper units 200 in at least two positions, and the rotation of each wiper unit 200 is relatively independent. The drive system has the same number of drive devices as the wiper units 200, and the drive devices are connected one-to-one with the wiper units 200, and the drive devices are configured to drive the wiper units 200 connected to them.

[0061] Understandably, the main body 100 has front, rear, left, and right orientations, with the lower part of the main body 100 facing the surface to be cleaned. In some specific embodiments, the window cleaning robot 10 includes two wiping units 200, which are distributed on adjacent sides of the main body 100. For example, one wiping unit 200 is positioned in front (or rear) of the main body 100, and the other is positioned on the left (or right) side of the main body 100. In other specific embodiments, the two wiping units 200 are distributed on opposite sides of the main body 100. For example, one wiping unit 200 is positioned in front of the main body 100, and the other is positioned in front of the main body 100. Of course, the window cleaning robot 10 can also be designed to include three or four wiping units 200.

[0062] The drive unit and the wiper unit 200 are one-to-one and connected. The drive unit drives the wiper unit 200 connected to it to move. This makes the control simpler and more precise, and can better ensure the independence of the movement of the wiper units 200. More specifically, when the machine body 100 moves toward the location of a certain wiper unit 200, the wiper unit 200 in that location can be driven by the corresponding drive unit to tilt to the side wall of the machine body 100. At the same time, the other wiper units 200 are synchronously controlled by their corresponding drive units to retract to the side wall of the machine body 100. Compared with the scheme of controlling multiple wiper units 200 through mechanical linkage by a single drive unit, the independent drive unit can avoid motion interference between wiper units 200, making the extension or retraction action of each wiper unit 200 respond faster and the position control more precise. At the same time, the control logic is simpler, and the target drive unit can be activated directly according to the direction of movement.

[0063] In one specific embodiment, the drive system includes a drive motor and a transmission gear set, which is connected to the drive motor. The wiper unit 200 has an extension arm 240 at its center, which is rotatably connected to the main body 100. The extension arm 240 has a gear structure, and the transmission gear set meshes with the gear structure. The drive motor drives the transmission gear set to rotate the gear structure. This structure is simple, and the rotation angle of the wiper unit 200 can be adjusted by controlling the torque of the drive motor's output shaft, allowing the wiper unit 200 to stop at any angle to adapt to different scenarios.

[0064] In some embodiments, the main body 100 is provided with an attitude adjustment system, which is configured to adjust the main body 100 to a target working posture. When the main body 100 is in the target working posture, the wiper part 200 extends in the vertical direction, and the lower end of the guide structure is farther from the side wall of the main body 100 than the upper end.

[0065] For example, the attitude adjustment system includes a positioning system, a space detection system, etc. The attitude adjustment system mainly senses the working environment and the attitude of the machine body 100, and adjusts the attitude of the machine body 100 through the walking drive system so that it can be in the target attitude.

[0066] Understandably, existing window cleaning robots can move in any direction to wipe and clean windows. However, for this design with a flow guide structure, the flow guide structure functions better when the robot body 100 moves in a lateral direction that is approximately perpendicular to the direction of gravity. When moving in the direction of gravity, the flow guide structure becomes ineffective. Therefore, to extend the working time of the flow guide structure during operation, a posture adjustment system is designed to directionally control the working posture of the robot body 100. This allows the flow guide structure to maintain effective liquid obstruction throughout the entire operation cycle. Specifically, the posture adjustment system keeps the robot body 100 in a preset lateral direction and prohibits movement along the direction of gravity. This ensures that the wiper 200 is always extended in the direction of gravity, and the lower end of the flow guide structure is further away from the side wall of the robot body 100 than the upper end. When the machine is restricted to lateral movement, the cleaning liquid flowing downwards along the window under the influence of gravity can be pushed and guided obliquely upwards by the flow guide structure, avoiding the problem of flow guide failure caused by partial movement in traditional window cleaning robots 10.

[0067] In some embodiments, the water outlet of the water spray system 400 is located above the guide structure. This allows the liquid to be sprayed at an upper position, then, under the influence of gravity, flow downwards along the window surface to wet the dirt. When the liquid reaches the inclined surface of the guide structure, it is guided in reverse by the upward thrust to the corresponding area of ​​the wiper section 200 to participate in cleaning. This prolongs the residence time of the cleanable liquid on the surface to be cleaned, achieving more efficient use of the cleaning liquid and better cleaning results.

[0068] To give a further example, such as Figure 3 and Figure 4As shown, the robot body 100 has wiper sections 200 in at least two locations, and the rotation of each wiper section 200 is relatively independent. The water spraying system has multiple water outlet positions, which correspond one-to-one with the multiple wiper sections 200 and are located in front of their working direction. The water spraying system can selectively spray towards a water outlet position to achieve automatic cleaning fluid dispensing. When the robot moves towards a certain wiper section 200, the water spraying system only sprays liquid towards the water outlet position corresponding to that direction, so that the cleaning fluid accurately covers the area to be wiped, eliminating the need for manual watering operations and avoiding manual intervention. This eliminates issues like spray deviation or uneven coverage caused by operating or fixing the nozzles. Furthermore, the correlation between the water spraying action and the robot's travel path ensures that the liquid evenly wets the window surface stains before the squeegee reaches the surface without excessive residue. This reduces liquid waste through on-demand supply and avoids unrestrained diffusion caused by premature or misaligned spraying, lowering the risk of liquid dripping and contaminating the window frame and surrounding environment. It achieves a highly efficient closed-loop cleaning process of directional spraying and immediate squeegee removal, improving automation while optimizing cleaning fluid utilization and environmental cleanliness, resulting in a better user experience.

[0069] Regarding the water spray system, in some embodiments, the nozzle assembly 400 may include a rotatably mounted nozzle assembly 400 and a water spray drive system connected to the nozzle assembly 400. The water spray drive system drives the nozzle assembly 400 to rotate to any water outlet position. By using a single rotatable nozzle assembly 400 in conjunction with the water spray drive system, multi-directional precise water spraying is achieved with a simple hardware structure. The rotating nozzle can cover all water outlet positions, significantly reducing the number of nozzles and connecting pipes, significantly improving system compactness and reliability, while reducing manufacturing costs and failure risks.

[0070] In other embodiments, the water spraying system may also include a plurality of nozzle assemblies 400, with a nozzle assembly 400 provided at each water outlet location.

[0071] By independently setting fixed nozzle assemblies 400 at each water outlet position, direct control of multi-directional water spraying is achieved, simplifying the control logic. At the same time, the independent operation of each nozzle avoids mechanical rotation delay and achieves instantaneous response spraying.

[0072] In some embodiments, a wiping section 200 is provided at two opposite positions on the main body 100. More specifically, a wiping section 200 is provided on the front side of the main body 100 and a wiping section 200 is provided on the rear side of the main body 100, so that only the corresponding wiping section 200 can perform the corresponding cleaning work when the main body 100 moves forward or backward.

[0073] By setting wiping units 200 at two opposite positions on the main body 100, the window cleaning robot 10 can achieve bidirectional continuous cleaning without turning. When the robot moves forward, the wiping unit 200 located at the front of the movement direction performs the wiping operation. When the robot moves backward, the original rear wiping unit 200 automatically switches to the front working position to continue wiping. This simplifies the mechanical structure of the product, requiring only two wiping units 200 to cover the entire direction of travel, avoiding component redundancy. In addition, the corresponding wiping unit 200 can be activated immediately in both directions of movement, eliminating the time loss of turning around and making the cleaning efficiency higher.

[0074] Furthermore, the two wiper units 200 are arranged symmetrically with respect to the central axis of the main body 100. This symmetrical arrangement of the two wiper units 200 with respect to the central axis of the main body 100 optimizes the liquid flow guiding efficiency during bidirectional movement.

[0075] Based on any of the above embodiments, the window cleaning robot 10 further includes a cleaning cloth 300, which is disposed at the bottom of the main body 100, with each squeegee 200 located on the outer periphery of the cleaning cloth 300. In this way, on the one hand, the liquid residue scraped off by the squeegee 200 can be absorbed and dried by the cleaning cloth 300 immediately following behind, reducing water stains on surfaces such as windows and improving cleaning power. On the other hand, placing the squeegee 200 on the outer periphery of the cleaning cloth 300 helps prevent cleaning liquid from seeping into the core area at the bottom of the main body 100, reducing the risk of short circuits and component corrosion caused by moisture erosion. More specifically, in the negative pressure adsorption window cleaning robot 10, the cleaning cloth 300 absorbs moisture from the bottom of the main body 100, preventing moisture from contacting the air intake channel or electronic components of the negative pressure adsorption system 120, maintaining long-term stability of the adsorption force, which helps ensure the safety of the negative pressure adsorption system 120 and extends its service life.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A window cleaning robot, characterized in that, include: The main body of the machine is configured to adhere to the surface to be cleaned and move along the surface to be cleaned. A wiping unit is located on the side of the main body of the machine, and the main body of the machine is configured to move toward the location of the wiping unit so that the wiping unit can remove liquid from the surface to be cleaned. A water spray system is installed on the machine body and configured to spray liquid in front of the wiper section; The wiper section has one or more flow guiding structures configured to direct the liquid sprayed by the water spray system from a lower position relative to gravity to a higher position.

2. The window cleaning robot according to claim 1, characterized in that, The wiping section has a wiping surface, at least a portion of which is inclined relative to the side wall of the machine body, and the inclined portion of the wiping surface defines the flow guiding structure.

3. The window cleaning robot according to claim 2, characterized in that, Along the length of the wiper section, the wiper section is inclined with one end close to the main body and the other end away from the main body.

4. The window cleaning robot according to claim 3, characterized in that, The wiper unit is rotatably connected to the main body, and the wiper unit is configured to rotate relative to the side wall of the main body so that it is parallel to or tilted relative to the side wall of the main body.

5. The window cleaning robot according to claim 4, characterized in that, The wiper section has multiple tilt angles relative to the side wall of the machine body.

6. The window cleaning robot according to claim 4, characterized in that, Also includes: A drive system, connected to the wiper unit, is configured to drive the wiper unit to rotate relative to the side wall of the machine body.

7. The window cleaning robot according to claim 6, characterized in that, The drive system includes: Drive motor; The transmission gear set is connected to the drive motor. The wiper part has an extension arm at the middle position. The extension arm is rotatably connected to the machine body. The extension arm has a gear structure. The transmission gear set and the gear structure mesh. The drive motor drives the transmission gear set to drive the gear structure to rotate.

8. The window cleaning robot according to claim 7, characterized in that, The wiper section is provided in at least two positions on the machine body, and the rotation of each wiper section is relatively independent; The drive system has the same number of drive units as the wiper units, each drive unit being connected one-to-one with a wiper unit, and the drive unit being configured to drive the wiper unit connected to it.

9. The window cleaning robot according to any one of claims 1 to 3, characterized in that, The machine body is equipped with an attitude adjustment system, which is configured to adjust the machine body to a target working attitude. When the machine body is in the target working posture, the wiper extends in the vertical direction, and the lower end of the flow guide structure is farther from the side wall of the machine body than the upper end.

10. The window cleaning robot according to any one of claims 1 to 3, characterized in that, The water outlet of the spray system is located above the flow guide structure.

11. The window cleaning robot according to any one of claims 1 to 3, characterized in that, The wiper section is provided at two opposite positions on the main body of the machine.

12. The window cleaning robot according to claim 10, characterized in that, The two wiper sections are arranged symmetrically with respect to the central axis of the machine body.

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