Automatic obstacle avoidance window cleaning robot

By improving the installation and adjustment mechanism, the problem of inconvenience for users to replace the cleaning cloth has been solved, enabling convenient replacement and even water spraying, preventing bacterial growth, and improving the cleaning effect of the window cleaning robot.

CN224572676UActive Publication Date: 2026-07-31WUHAN JINHONG ENG LABOR SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN JINHONG ENG LABOR SERVICE CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing automatic obstacle avoidance window cleaning robots, the cleaning cloth and filter components use hidden clips, which require special tools to disassemble. This makes it inconvenient for users to replace them, and bacteria can grow if they are not replaced for a long time.

Method used

The design incorporates an easy-to-install and disassemble installation and adjustment mechanism, including a limit block, telescopic rod, elastic component, and electric push rod, to achieve a secure connection between the housing and the cleaning block. The electric push rod is used to adjust the spray angle of the nozzle, thereby expanding the spray range.

Benefits of technology

It improves the ease of replacing the outer casing and cleaning block, prevents bacterial growth, ensures even water spray distribution, avoids insufficient wetting of glass edges, and enhances cleaning results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224572676U_ABST
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Abstract

This utility model relates to the field of cleaning robot technology and discloses an automatic obstacle-avoiding window cleaning robot, including a body. An outer shell is slidably connected to the rear inner wall of the body. Multiple mounting mechanisms are equidistantly installed on the front and rear sides of the outer wall of the outer shell. These mounting mechanisms facilitate the installation and disassembly of components. Multiple adjustment mechanisms are equidistantly installed on the front inner wall of the body, used to adjust the water spray angle. In this utility model, when installing the outer shell, the telescopic rod is pulled outwards. The telescopic rod slides outwards within the fixed plate and limiting block. Simultaneously, the insert plate at the end of the telescopic rod compresses the damping rod and spring during sliding, causing the outer shell to slide into the inner wall of the body. Finally, the telescopic rod is released, and the spring quickly rebounds due to its elasticity, pushing out the damping rod. This causes the insert plate to rebound and insert into the mounting groove on the outer wall of the fixed block, forming a stable connection. The operation is convenient, facilitating the installation and disassembly of the outer shell and cleaning block.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning robot technology, and in particular to an automatic obstacle avoidance window cleaning robot. Background Technology

[0002] Automatic obstacle-avoidance window cleaning robots are modern home appliances that integrate intelligent sensing, path planning, and cleaning technology. They are mainly used for automatically cleaning glass surfaces (such as residential windows and commercial building curtain walls) and can achieve efficient and safe cleaning operations by autonomously identifying and avoiding obstacles (such as window frames, glass handles, areas with accumulated dirt, and cables).

[0003] In existing technologies, after placing the device on the glass surface, the robot automatically detects the adsorption force, battery level, and sensor status, and initializes map construction. Based on SLAM technology, it plans a cleaning path covering the entire glass (prioritizing the avoidance of known obstacle areas). During the cleaning process, the sensors scan the environment in real time. If an obstacle (such as a window frame) is detected, it automatically bypasses it and adjusts the path. If stubborn stains are encountered, the area may be cleaned repeatedly. After cleaning, some high-end models can automatically return to the starting point and prompt the user to retrieve the device via an app. If there are a lot of water stains and oil stains on the glass surface, the sealing edge of the vacuum adsorption may slip, resulting in a decrease in adsorption force. Adding "anti-slip texture" to the silicone edge of the vacuum adsorption and applying a low-friction coefficient coating enhances the sealing of the wet and slippery surface. However, the cleaning cloth and filter components use hidden clips, which require special tools to disassemble, making it inconvenient for users to replace them. If they are not replaced for a long time, bacteria will grow. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic obstacle avoidance window cleaning robot, which aims to improve the problem that the cleaning cloth and filter components in the prior art use hidden buckles, which require special tools to disassemble, making it inconvenient for users to replace, and causing bacteria to grow if they are not replaced for a long time.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automatic obstacle-avoiding window cleaning robot, comprising a body, an outer shell slidably connected to the rear side of the inner wall of the body, and multiple mounting mechanisms equidistantly installed on the front and rear sides of the outer wall of the outer shell, the mounting mechanisms being used to facilitate the installation and disassembly of components; multiple adjustment mechanisms equidistantly installed on the front side of the inner wall of the body, the adjustment mechanisms being used to adjust the water spray angle; the mounting mechanism includes a limiting block, the limiting block being equidistantly fixedly connected to the rear side of the bottom wall of the body, a fixing plate being provided on the front side of the outer wall of the limiting block, the top wall of the fixing plate being connected to the bottom wall of the body, a telescopic rod being slidably connected to the inner walls of the limiting block and the fixing plate, and multiple fixing blocks being equidistantly fixedly connected to the front and rear sides of the outer wall of the outer shell.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the fixing block is provided with an installation groove, the end of the telescopic rod is fixedly connected to an insert plate, the insert plate is slidably connected to the inner wall of the installation groove, and an elastic component is installed on the rear side of the outer wall of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] The elastic component includes a damping rod, which is installed on the left and right rear ends of the outer wall of the fixed plate. The end of the damping rod is connected to the outer wall of the insert plate, and a spring is installed on the outer wall of the damping rod.

[0010] As a further description of the above technical solution:

[0011] The adjustment mechanism includes a mounting plate, which is fixedly connected at equal intervals to the middle of the inner wall of the machine body, and a drive mechanism is installed on the front side of the bottom wall of the mounting plate.

[0012] As a further description of the above technical solution:

[0013] The drive mechanism includes an electric push rod, which is fixedly connected to the front side of the bottom wall of the mounting plate, and the output end of the electric push rod is fixedly connected to a toothed column.

[0014] As a further description of the above technical solution:

[0015] Multiple clamping blocks are equidistantly installed on the rear side of the bottom wall of the mounting plate. Gears are rotatably connected to the inner wall of each clamping block. A nozzle is fixedly connected to the right end of each gear, and the gear meshes with a toothed column.

[0016] As a further description of the above technical solution:

[0017] A button is installed on the rear side of the top wall of the body, and cleaning blocks are installed on both the front and rear sides of the inner wall of the outer casing.

[0018] As a further description of the above technical solution:

[0019] Rollers are rotatably connected to both the left and right sides of the bottom wall of the machine body, and a sensor is installed on the front side of the bottom wall of the machine body.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when installing the outer shell, the telescopic rod is pulled outward, and the telescopic rod slides outward within the fixed plate and the limiting block. At the same time, the insert plate at the end of the telescopic rod will compress the damping rod and the spring when sliding, and then slide the outer shell into the inner wall of the machine body. Finally, the telescopic rod is released, and the spring will quickly rebound due to its elasticity and push out the damping rod, thereby allowing the insert plate to rebound and insert into the mounting groove on the outer wall of the fixed block, forming a stable connection. The operation is convenient, and it is easy to install and disassemble the outer shell and the cleaning block, preventing users from having difficulty replacing the outer shell and the cleaning block, and preventing bacteria from growing if they are not replaced for a long time.

[0022] 2. In this utility model, after the electric push rod is started, it drives the toothed column to move. When the toothed column moves, it drives the transmission gear, thereby driving the gear to rotate in the clamping block. The rotation of the gear drives the nozzle to rotate, thereby adjusting the spray angle of the nozzle, expanding the spray range, and preventing uneven spray layout, which would result in insufficient wetting of the edge glass. Attached Figure Description

[0023] Figure 1 This is a perspective view of the automatic obstacle-avoiding window cleaning robot proposed in this utility model.

[0024] Figure 2 This is a front view of the automatic obstacle-avoiding window cleaning robot proposed in this utility model;

[0025] Figure 3 This is a structural exploded view of the automatic obstacle avoidance window cleaning robot proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of the automatic obstacle avoidance window cleaning robot proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the automatic obstacle avoidance window cleaning robot proposed in this utility model.

[0028] Legend:

[0029] 1. Body; 2. Mounting mechanism; 201. Fixing block; 202. Insert plate; 203. Elastic component; 2031. Damping rod; 2032. Spring; 204. Fixing plate; 205. Telescopic rod; 206. Limiting block; 207. Mounting slot; 3. Adjustment mechanism; 301. Drive mechanism; 3011. Electric push rod; 3012. Gear column; 302. Nozzle; 303. Mounting plate; 304. Clamping block; 305. Gear; 4. Button; 5. Roller; 6. Sensor; 7. Housing; 8. Cleaning block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an automatic obstacle-avoiding window cleaning robot, comprising a body 1, a shell 7 slidably connected to the rear side of the inner wall of the body 1, and multiple mounting mechanisms 2 equidistantly installed on the front and rear sides of the outer wall of the shell 7, the mounting mechanisms 2 being used to facilitate the installation and disassembly of components; multiple adjustment mechanisms 3 equidistantly installed on the front side of the inner wall of the body 1, the adjustment mechanisms 3 being used to adjust the water spray angle; the mounting mechanism 2 includes a limiting block 206, the limiting block 206 being equidistantly fixedly connected to the rear side of the bottom wall of the body 1, and a fixing plate 204 being provided on the front side of the outer wall of the limiting block 206, the top wall of the fixing plate 204 being connected to the bottom wall of the body 1, and the limiting block 206 being fixed to the rear side of the bottom wall of the body 1. The inner wall of plate 204 is slidably connected with telescopic rods 205, and multiple fixing blocks 201 are fixedly connected at equal intervals on the front and rear sides of the outer wall of the outer shell 7; the outer wall of the fixing block 201 is provided with an installation groove 207, and the end of the telescopic rod 205 is fixedly connected with an insert plate 202. The insert plate 202 is slidably connected to the inner wall of the installation groove 207. An elastic component 203 is installed on the rear side of the outer wall of the fixing plate 204; the elastic component 203 includes a damping rod 2031, which is installed on the left and right rear sides of the outer wall of the fixing plate 204. The end of the damping rod 2031 is connected to the outer wall of the insert plate 202, and a spring 2032 is installed on the outer wall of the damping rod 2031.

[0032] Specifically, when installing the outer casing 7, the telescopic rod 205 is pulled outward. The telescopic rod 205 slides outward within the fixed plate 204 and the limiting block 206. At the same time, the insert plate 202 at the end of the telescopic rod 205 compresses the damping rod 2031 and the spring 2032 during sliding, and then the outer casing 7 is slid into the inner wall of the body 1. Finally, the telescopic rod 205 is released, and the spring 2032 will quickly rebound due to its elasticity and push out the damping rod 2031, thereby allowing the insert plate 202 to rebound and insert into the mounting groove 207 on the outer wall of the fixed block 201, forming a stable connection. The operation is convenient and it is easy to install and remove the outer casing 7 and the cleaning block 8, preventing users from having difficulty replacing the outer casing 7 and the cleaning block 8, and preventing bacteria from growing if they are not replaced for a long time.

[0033] Reference Figure 1 , Figure 2 and Figure 5The adjustment mechanism 3 includes a mounting plate 303, which is fixedly connected to the middle of the inner wall of the machine body 1 at equal intervals. A drive mechanism 301 is installed on the front side of the bottom wall of the mounting plate 303. The drive mechanism 301 includes an electric push rod 3011, which is fixedly connected to the front side of the bottom wall of the mounting plate 303. A gear column 3012 is fixedly connected to the output end of the electric push rod 3011. Multiple clamping blocks 304 are installed at equal intervals on the rear side of the bottom wall of the mounting plate 303. A gear 305 is rotatably connected to the inner wall of the clamping block 304. A nozzle 302 is fixedly connected to the right end of the gear 305. The gear 305 meshes with the gear column 3012.

[0034] Specifically, after the electric push rod 3011 is started, it drives the gear column 3012 to move. When the gear column 3012 moves, it drives the transmission gear 305, which in turn drives the gear 305 to rotate in the clamping block 304. The rotation of the gear 305 drives the nozzle 302 to rotate, thereby adjusting the spray angle of the nozzle 302, expanding the spray range, and preventing uneven spray layout from causing insufficient wetting of the edge glass.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A button 4 is installed on the rear side of the top wall of the body 1, and cleaning blocks 8 are installed on the front and rear sides of the inner wall of the outer shell 7. Rollers 5 are rotatably connected to the left and right sides of the bottom wall of the body 1, and a sensor 6 is installed on the front side of the bottom wall of the body 1.

[0036] Specifically, the main body 1 has a button 4 for easy manual operation; the cleaning block 8 has an outer layer of microfiber cloth for wiping dust and stains, and an inner layer of absorbent sponge and nanomaterials to absorb water stains and prevent water marks from remaining; the roller 5 is the part that comes into contact with the glass, and is made of rubber and silicone, which has both anti-slip and wear-resistant properties to prevent scratching the glass; the sensor 6 detects the distance of obstacles in front (such as window frames, glass edges, and protrusions) by emitting and receiving infrared rays, and triggers a turning command when the distance is less than the safety threshold.

[0037] Working Principle: During the installation of the outer casing 7, the telescopic rod 205 needs to be pulled outward first. Under the constraint of the fixing plate 204 and the limiting block 206, the telescopic rod 205 slides outward. Simultaneously, the insert plate 202 at the end of the telescopic rod 205 compresses the damping rod 2031 and the spring 2032 during the sliding process. After this step, the outer casing 7 is slid into the inner wall of the body 1. Then, the telescopic rod 205 is released. At this time, the spring 2032 will quickly rebound due to its elasticity, pushing the damping rod 2031 forward, causing the insert plate 202 to also quickly rebound and insert into the mounting groove 207 on the outer wall of the fixing block 201. This design not only ensures a stable connection between the outer casing 7 and the body 1, but also greatly improves the convenience of operation, making it easier for users to install and remove the outer casing 7 and the cleaning block 8. This design takes into account the inconvenience users may encounter when replacing the outer casing 7 and the cleaning block 8, avoiding the problem of bacterial growth that may result from not replacing them for a long time.

[0038] After the electric actuator 3011 is activated, it drives the gear 3012 to move. During this movement, the gear 3012 drives the gear 305, causing the gear 305 to rotate within the clamping block 304. The rotation of the gear 305 drives the nozzle 302 to rotate, thereby adjusting the spray angle of the nozzle 302. In this way, the spray range can be effectively expanded, ensuring a more uniform spray pattern. This avoids uneven spray patterns that could lead to insufficient wetting of the glass edges, ensuring that the entire glass surface is adequately wetted, thus improving the cleaning effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Automatic obstacle-avoiding window cleaning robot comprising a body (1), characterized in that: The inner wall of the body (1) is slidably connected to the outer shell (7). Multiple installation mechanisms (2) are installed at equal intervals on the front and rear sides of the outer wall of the outer shell (7). The installation mechanisms (2) are used to facilitate the installation and disassembly of components. Multiple adjustment mechanisms (3) are installed at equal intervals on the front side of the inner wall of the body (1). The adjustment mechanisms (3) are used to adjust the water spray angle. The installation mechanism (2) includes a limiting block (206), which is fixedly connected at equal intervals to the rear side of the bottom wall of the body (1). A fixing plate (204) is provided on the front side of the outer wall of the limiting block (206). The top wall of the fixing plate (204) is connected to the bottom wall of the body (1). Telescopic rods (205) are slidably connected to the inner walls of the limiting block (206) and the fixing plate (204). Multiple fixing blocks (201) are fixedly connected at equal intervals on the front and rear sides of the outer wall of the outer shell (7).

2. The automatic obstacle-avoiding window cleaning robot according to claim 1, characterized in that: The outer wall of the fixing block (201) is provided with an installation groove (207), the end of the telescopic rod (205) is fixedly connected with a plug plate (202), the plug plate (202) is slidably connected to the inner wall of the installation groove (207), and an elastic component (203) is installed on the rear side of the outer wall of the fixing plate (204).

3. The automatic obstacle-avoiding window cleaning robot according to claim 2, characterized in that: The elastic component (203) includes a damping rod (2031), which is installed on the left and right rear ends of the outer wall of the fixed plate (204). The end of the damping rod (2031) is connected to the outer wall of the insert plate (202), and a spring (2032) is installed on the outer wall of the damping rod (2031).

4. The automatic obstacle avoidance window cleaning robot of claim 1, wherein: The adjustment mechanism (3) includes a mounting plate (303), which is fixedly connected at equal intervals to the middle of the inner wall of the body (1), and a drive mechanism (301) is installed on the front side of the bottom wall of the mounting plate (303).

5. The automatic obstacle avoidance window cleaning robot of claim 4, wherein: The drive mechanism (301) includes an electric push rod (3011), which is fixedly connected to the front side of the bottom wall of the mounting plate (303), and the output end of the electric push rod (3011) is fixedly connected to a toothed column (3012).

6. The automatic obstacle avoidance window cleaning robot of claim 4, wherein: Multiple clamping blocks (304) are equidistantly installed on the rear side of the bottom wall of the mounting plate (303). A gear (305) is rotatably connected to the inner wall of the clamping block (304). A nozzle (302) is fixedly connected to the right end of the gear (305). The gear (305) meshes with a toothed column (3012).

7. The automatic obstacle avoidance window cleaning robot of claim 1, wherein: A button (4) is installed on the rear side of the top wall of the body (1), and a cleaning block (8) is installed on both the front and rear sides of the inner wall of the outer shell (7).

8. The automatic obstacle avoidance window cleaning robot of claim 1, wherein: Rollers (5) are rotatably connected to the left and right sides of the bottom wall of the body (1), and a sensor (6) is installed on the front side of the bottom wall of the body (1).