Window cleaning robot

Abstract

The utility model provides a window cleaning robot, and relates to the technical field of window cleaning equipment. The window wiping robot comprises a robot body, an adsorption device, a driving device and a wiping assembly. The machine body is triangular, one edge of the triangle is the front end of the machine body, and one corner corresponding to the edge is the rear end of the machine body; an adsorption device and a driving device are arranged in the machine body; a wiping assembly is arranged at the front end of the machine body, and supporting wheels are arranged at the rear end of the machine body. The adsorption device arranged in the machine body can provide strong adsorption force, and during use, the two robots are arranged on the inner side and the outer side of glass correspondingly, and the two robots are stably attached to the glass through the adsorption device. The slipping phenomenon is reduced and the cleaning effect is improved. The driving device enables the robot to be smoother in the moving process. The triangular machine body design enables the robot to better clean the edges and corners of the window.

Description

Technical Field

[0001] The utility model relates to the technical field of window cleaning equipment, in particular to a window cleaning robot. Background Art

[0002] With the advancement of technology and the improvement of people's living standards, the demand for household cleaning equipment is increasing. Especially in high-rise buildings, window cleaning is not only time-consuming and labor-intensive, but also poses certain safety risks. Traditional manual window cleaning is not only inefficient but also prone to injury. Therefore, the emergence of window cleaning robots has greatly alleviated these problems.

[0003] While existing window-cleaning robots have improved cleaning efficiency and safety to a certain extent, they still have some shortcomings in practical applications. For example, most existing window-cleaning robots use a round or square body design, which is ineffective when cleaning edges and corners of windows, leaving blind spots. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a window cleaning robot which can better clean the edges and corners of windows and reduce cleaning dead angles.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0006] A window cleaning robot comprises: a body, an adsorption device, a driving device and a wiping component;

[0007] The body is triangular, one side of the triangle is the front end of the body, and a corner corresponding to the side is the rear end of the body;

[0008] The adsorption device and the driving device are arranged in the body;

[0009] The front end of the machine body is provided with the wiping assembly, and the rear end of the machine body is provided with supporting wheels.

[0010] Optionally, the wiping assembly includes a friction strip and a scraping strip;

[0011] The friction strip is arranged at the front end of the scraping strip.

[0012] Optionally, a snap-in groove is provided at the front end of the machine body, and the scraping strip is snap-into the snap-in groove.

[0013] Optionally, the scraping strip comprises a clamping portion, a connecting portion and a scraping portion connected in sequence;

[0014] The clamping portion is clamped in the clamping slot.

[0015] Optionally, the thickness of the scraping portion gradually decreases from an end close to the connecting portion to an end away from the connecting portion.

[0016] Optionally, it further includes a bracket and a compression spring;

[0017] The bracket is detachably connected to the body;

[0018] The wiping assembly is arranged at the bottom of the bracket, and the compression spring is arranged between the top of the bracket and the machine body.

[0019] Optionally, two anti-pinch devices are also included;

[0020] The two anti-hand pinching devices are both arranged in the machine body and are respectively located on both sides of the adsorption device.

[0021] Optionally, the anti-pinch device includes a support rod, a limit hook, a transmission assembly and a button;

[0022] The outer end of the support rod is rotatably connected to the body, and the outer end of the support rod is connected to the body through a tension spring, so that the inner end of the support rod is tilted;

[0023] One end of the limit hook is rotatably connected to the body, and the other end can be engaged with the outer end of the support rod to keep the inner end of the support rod in a tilted state;

[0024] The button is arranged on the outer side wall of the body and is connected to one end of the transmission assembly arranged in the body;

[0025] The transmission assembly is connected to the limit hook to control the rotation of the limit hook.

[0026] Optionally, the other end of the limiting hook is provided with a hook portion, and the hook portion is adapted to be engaged with the outer end of the support rod.

[0027] Optionally, the transmission assembly includes a transmission rod, a limiting block and a fixing block;

[0028] The limiting block is fixedly connected to the body;

[0029] The transmission rod passes through the limiting block;

[0030] The fixing block is fixedly connected to the transmission rod and is located outside the limiting block;

[0031] A spring is provided on the transmission rod and located between the limiting block and the fixing block.

[0032] The technical solution provided by the utility model has the following technical effects:

[0033] 1. The suction device built into the robot provides strong suction. When in use, the two robots are placed on the inside and outside of the glass, respectively, and the suction device secures them to the glass. The wiping assembly, located at the front of the drive mechanism, pre-cleans the glass surface for the rear-mounted drive mechanism, reducing slippage and improving cleaning efficiency. The drive mechanism ensures smooth robot movement. The triangular design of the robot allows it to effectively clean edges and corners of windows.

[0034] 2. Two anti-pinch devices are set on both sides of the adsorption device, which can prevent the user's fingers from being pinched between the two robots on the inner and outer windows when installing the two robots, effectively avoiding injuries caused by misoperation during operation and enhancing the user-friendliness of the robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings.

[0036] Figure 1 This is a structural diagram of a window cleaning robot provided in an embodiment of the present utility model;

[0037] Figure 2 This is a bottom view of a window cleaning robot provided in an embodiment of the present utility model;

[0038] Figure 3 yes Figure 2 AA section view in;

[0039] Figure 4 yes Figure 3 Enlarged view of part C in FIG;

[0040] Figure 5 yes Figure 2 BB cross-sectional view in;

[0041] Figure 6 This is a schematic structural diagram of a first state of an anti-pinch device in a window cleaning robot provided in an embodiment of the present utility model;

[0042] Figure 7 This is a first-view structural diagram of a second state of an anti-pinch device in a window cleaning robot provided in an embodiment of the present utility model;

[0043] Figure 8 This is a second perspective structural schematic diagram of the second state of an anti-pinch device in a window cleaning robot provided in an embodiment of the present utility model.

[0044] The description of the accompanying drawings is as follows:

[0045] 1. Machine body, 2. Adsorption device, 3. Driving device, 4. Wiping assembly, 5. Snap-on slot, 6. Bracket, 7. Compression spring, 8. Anti-pinch device;

[0046] 41, friction strip, 42, scraping strip;

[0047] 421, clamping portion, 422, connecting portion, 423, scraping portion;

[0048] 81. Support rod, 82. Limit hook, 83. Transmission assembly, 84. Button, 85. Tension spring, 86. Hook portion;

[0049] 831. Transmission rod, 832. Limit block, 833. Fixed block, 834. Spring. DETAILED DESCRIPTION

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0051] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0052] Figure 1 This is a structural diagram of a window cleaning robot provided in an embodiment of the present utility model; Figure 2 This is a bottom view of a window cleaning robot provided in an embodiment of the present utility model; Figure 3 yes Figure 2 AA section view in; Figure 4 yes Figure 3 Enlarged view of part C in FIG; Figure 5 yes Figure 2 BB cross-sectional view in; Figure 6 This is a schematic structural diagram of a first state of an anti-pinch device in a window cleaning robot provided in an embodiment of the present utility model; Figure 7 This is a first-view structural diagram of a second state of an anti-pinch device in a window cleaning robot provided in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the second state of the anti-pinch device of a window cleaning robot provided in an embodiment of the present invention from a second perspective. The above schematic diagram only illustrates the structural relationship related to the utility model and is not intended to be an actual scale of the actual product.

[0053] like Figures 1 to 8 The window-wiping robot in this embodiment includes: a body 1, an adsorption device 2, a driving device 3 and a wiping component 4; the body 1 is triangular, one side of the triangle is the front end of the body 1, and an angle corresponding to the side is the rear end of the body 1; the adsorption device 2 and the driving device 3 are arranged in the body 1; the wiping component 4 is arranged at the front end of the body 1, and the rear end of the body 1 is provided with a supporting wheel.

[0054] The main body of the robot body 1 is a triangular outer panel. This outer panel not only serves as the robot's outer shell but also supports the various internal components. A circle of panels, typically low in height, surrounds the edges of the triangular outer panel, primarily to protect the internal components from external interference during movement and to enhance the robot's overall structural strength. The robot body 1 is typically constructed of a lightweight yet strong material, such as plastic or aluminum alloy, to ensure the robot's weight and durability are moderate.

[0055] Adsorption device 2, a powerful magnet, is fixedly mounted within housing 1, generating sufficient suction to securely attach the two robots, located inside and outside the glass, to the glass surface. The magnet is typically positioned at the center of housing 1, ensuring that its center of gravity coincides with or is close to the center of gravity of housing 1.

[0056] How to fix strong magnets:

[0057] 1. Use high-strength industrial glue (such as epoxy resin glue) to stick the magnet to the center of the body 1. Make sure the glue is completely dry and solidified.

[0058] 2. Design a dedicated fixing seat or bracket 6 inside the body 1 to fix the magnet in the center position with screws or other fasteners. The fixing seat can be embedded or protruding to ensure that the magnet is secure and will not loosen.

[0059] 3. Preset a groove or hole in the center of the body 1, embed the magnet directly into it and fix it with glue.

[0060] The driving device 3 includes a motor, a reduction gear system and a driving wheel, and is arranged behind the wiping assembly 4 .

[0061] The motor typically uses a DC motor, stepper motor, or servo motor. It converts electrical energy into mechanical energy, providing the initial rotational power. The motor's speed and torque can be adjusted by a control system to suit different cleaning needs.

[0062] The reduction gear system is directly connected to the output shaft of the motor, receiving the rotational power provided by the motor. It connects to the output shaft and transmits the motion to the drive wheel.

[0063] The reduction gear system's primary function is to decelerate the motor's high-speed rotation and increase torque. By combining multiple gear stages, a large reduction ratio and highly efficient transmission can be achieved within a compact space. This provides the robot with a stronger driving force during movement, enabling it to move stably across the glass surface, even when encountering resistance.

[0064] The drive wheels can be rubber wheels, tracks, or rollers, depending on the robot's design and application. They contact the glass surface, providing friction to enable the robot to move across the glass. In a preferred embodiment, the drive wheels are sleeved around the outside of the reduction gear system, enclosing the reduction gear system. This reduces the space occupied by the drive device 3 and protects the multiple gears in the reduction gear system.

[0065] In one embodiment, the wiping assembly 4 includes a friction strip 41 and a scraping strip 42 ; the friction strip 41 is disposed at the front end of the scraping strip 42 .

[0066] The friction strip 41 first contacts the window surface and removes most of the dust and stains through friction, providing a relatively clean surface for the subsequent scraping strip 42.

[0067] The scraping strip 42 then passes over the same area and thoroughly removes residual moisture and fine particles through its unique design (such as the gradually thinning scraping portion 423), ensuring that the window surface is clean and transparent.

[0068] The combined design of the friction strips 41 and the scraping strips 42 enables the robot to complete preliminary cleaning and thorough cleaning in one movement, reducing the need for multiple round trips and improving cleaning efficiency.

[0069] In one embodiment, a snap-in groove 5 is provided at the front end of the machine body 1 , and the scraping strip 42 is snap-into the snap-in groove 5 .

[0070] The scraper strip 42 is a component that wears quickly, so frequent replacement ensures consistent cleaning results. The snap-in slot 5 design allows for easy insertion and removal of the scraper strip 42, simplifying the replacement process. Users can complete replacements without the use of tools. This makes routine maintenance and upkeep much easier, reducing operational complexity.

[0071] After a period of use, the scraper strip 42 accumulates dirt and wears, affecting cleaning effectiveness. The snap-in slot 5 allows users to regularly clean or replace the scraper strip 42, ensuring optimal cleaning results every time. Users can also choose scraper strips 42 of different materials and shapes based on different cleaning environments and needs, and quickly replace them using the snap-in slot 5, improving the robot's adaptability and flexibility.

[0072] In one embodiment, the scraping strip 42 includes a snap-fit ​​portion 421, a connecting portion 422, and a scraping portion 423 connected in sequence; the snap-fit ​​portion 421 is snap-fitted into the snap-fit ​​groove 5. Preferably, the thickness of the scraping portion 423 gradually decreases from an end close to the connecting portion 422 to an end away from the connecting portion 422.

[0073] The clip 421 connects the scraping strip 42 to the front clip slot 5 of the body 1, ensuring that the scraping strip 42 is securely fixed to the body. The clip 421 is typically designed as a raised structure that matches the shape of the clip slot 5, ensuring a secure connection. It is typically made of hard plastic or metal to ensure sufficient strength and durability. The user can easily insert the clip 421 into the clip slot 5.

[0074] The connecting portion 422 is the transition between the clamping portion 421 and the scraping portion 423, serving as a connection and transmitting force. The connecting portion 422 is typically designed as a short straight section or a slightly curved section to ensure a smooth transition between the clamping portion 421 and the scraping portion 423. The connecting portion 422 is typically made of the same material as the clamping portion 421 to ensure overall strength and consistency. The design of the connecting portion 422 must ensure sufficient rigidity to prevent bending or deformation during the cleaning process, while also providing a certain degree of flexibility to accommodate glass surfaces of varying curvatures.

[0075] The scraper 423 is the part that comes into direct contact with the glass surface, thoroughly removing moisture and residue to ensure a clean, transparent window surface. It is typically designed as a flat, strip-like structure. It is typically made of a soft, wear-resistant material, such as silicone, rubber, or Teflon, to ensure a good seal and durability. The scraper 423 has a certain degree of elasticity, adapting to glass surfaces of varying curvatures and ensuring consistent contact during the cleaning process.

[0076] The thickness of the scraping portion 423 gradually decreases from one end close to the connecting portion 422 to the other end away from the connecting portion 422. This design helps to better fit the window surface and reduce water marks and residues.

[0077] The edge of the scraping portion 423 is usually finely processed to ensure smoothness and burr-free to avoid scratching the glass surface.

[0078] In one embodiment, the device further comprises a bracket 6 and a compression spring 7; the bracket 6 is detachably connected to the body 1; the wiping assembly 4 is provided at the bottom of the bracket 6, and a compression spring 7 is provided between the top of the bracket 6 and the body 1. There can be multiple compression springs 7, evenly distributed.

[0079] The bracket 6 is detachably connected to the body 1 by a buckle or other quick connection device. This design allows the user to easily remove and replace the bracket 6, making it easy to maintain and replace the wiping assembly 4. A clearance fit is used at the connection to allow the bracket 6 to have a certain amount of movement space.

[0080] A compression spring 7 is provided between the top of the bracket 6 and the housing 1. One end of the compression spring 7 is fixed to the top of the bracket 6, and the other end is fixed to a corresponding position on the housing 1. The compression spring 7 can be connected to the bracket 6 and the housing 1 via a hook, a snap, or other fixing device. For example, one end of the compression spring 7 can be hooked on the hook at the top of the bracket 6, and the other end can be fixed to a fixed point on the housing 1.

[0081] The action of the compression spring 7 allows the bracket 6 and the wiping assembly 4 to fit more closely to the glass surface, ensuring a more even and close contact between the wiping assembly 4 and the glass surface, thereby improving the cleaning effect. The additional pressure provided by the compression spring 7 enables the scraping strip 42 to better remove moisture and residue, reducing water marks and residue, ensuring a clean and transparent window surface.

[0082] The design of the compression spring 7 enables the bracket 6 and the wiping assembly 4 to adapt to glass surfaces of different curvatures, and can effectively clean both smooth and slightly rough surfaces.

[0083] The pressure provided by the compression spring 7 is evenly distributed, avoiding water marks and residues caused by uneven pressure, and ensuring consistent cleaning results.

[0084] In one embodiment, two anti-pinch devices 8 are further included; both anti-pinch devices 8 are disposed within the body 1 and are located on either side of the suction device 2. The anti-pinch devices 8 protect the user's fingers during window cleaning, preventing them from being pinched between the inner and outer window robots, thereby avoiding accidental injury.

[0085] In one embodiment, the anti-pinch device 8 includes a support rod 81, a limiting hook 82, a transmission assembly 83, and a button 84. The outer end of the support rod 81 is rotatably connected to the body 1, and the outer end of the support rod 81 is connected to the body 1 via a tension spring 85, so that the inner end of the support rod 81 is tilted. One end of the limiting hook 82 is rotatably connected to the body 1, and the other end can be engaged with the outer end of the support rod 81, so that the inner end of the support rod 81 remains in a tilted state. The button 84 is provided on the outer wall of the body 1 and connected to one end of the transmission assembly 83 provided in the body 1. The transmission assembly 83 is connected to the limiting hook 82 to control the rotation of the limiting hook 82. Preferably, the other end of the limiting hook 82 is provided with a hook portion 86, which is adapted to engage with the outer end of the support rod 81.

[0086] One end (outer end) of the support rod 81 is pivotally connected to the robot body 1, while the other end (inner end) is connected to the robot body 1 via a tension spring 85. The tension spring 85 keeps the inner end of the support rod 81 tilted upwards when not cleaning windows, forming a physical barrier to prevent the user's fingers from being caught between the inner and outer window robots.

[0087] One end of the limit hook 82 is rotatably connected to the body 1, and the other end (hook portion 86) can be engaged with the outer end of the support rod 81. The limit hook 82 is engaged with the outer end of the support rod 81 to ensure that the inner end of the support rod 81 is always in a tilted state, further enhancing the anti-pinch effect.

[0088] The transmission assembly 83 controls the rotation of the limit hook 82 through the button 84. When the user presses the button 84, the limit hook 82 releases the support rod 81, and the inner end of the support rod 81 can be lowered, allowing the robot to make close contact with the glass.

[0089] A button 84 is provided on the outer wall of the body 1 for user convenience. Before the window cleaning operation begins, when the user presses the button 84, the transmission assembly 83 controls the rotation of the limit hook 82, causing the limit hook 82 to release the support rod 81, allowing the inner end of the support rod 81 to be lowered, allowing the robot to make close contact with the glass.

[0090] The combination of support rod 81 and limit hook 82 forms a physical barrier, preventing the user's fingers from being caught between the inner and outer robots after leaving the window. This mechanical control reduces accidents caused by misoperation and protects the user's personal safety.

[0091] The user only needs to press the button 84 to easily control the closing of the anti-pinch device 8, which is simple and convenient to operate.

[0092] In one embodiment, the transmission assembly 83 includes a transmission rod 831, a limit block 832 and a fixed block 833; the limit block 832 is fixedly connected to the body 1; the transmission rod 831 passes through the limit block 832; the fixed block 833 is fixedly connected to the transmission rod 831 and is located on the outside of the limit block 832; a spring 834 is provided on the transmission rod 831 and between the limit block 832 and the fixed block 833.

[0093] The transmission rod 831 is a freely movable rod that passes through a hole provided on the limiting block 832. The movement of the transmission rod 831 can control the rotation of the limiting hook 82.

[0094] The limit block 832 is fixedly connected to the body 1 and has a through hole in the middle for the transmission rod 831 to pass through. The function of the limit block 832 is to fix the motion path of the transmission rod 831 and ensure that the transmission rod 831 can only rotate within a predetermined range.

[0095] The fixing block 833 is fixedly connected to the transmission rod 831 and is located outside the limiting block 832 .

[0096] The spring 834 is provided on the transmission rod 831 and is located between the limit block 832 and the fixed block 833. The function of the spring 834 is to provide a rebound force so that the transmission rod 831 automatically resets after the button 84 is released, ensuring that the limit hook 82 returns to its initial position.

[0097] Transmission rod 831 passes through the through-hole of limit block 832, which is fixed to body 1, ensuring that transmission rod 831 can rotate only within a predetermined range. Fixed block 833 is fixedly connected to one end of transmission rod 831 and located outside limit block 832. Spring 834 is sleeved on transmission rod 831 and located between limit block 832 and fixed block 833. One end of spring 834 abuts against limit block 832, and the other end abuts against fixed block 833, providing a rebound force.

[0098] The button 84 is arranged on the outer side wall of the body 1 and is connected to the transmission rod 831 through a connecting rod or directly connected to the transmission rod 831. When the user presses the button 84, the transmission rod 831 is pushed to move.

[0099] The rotation of the limit hook 82 is controlled by the transmission assembly 83, so that the inner end of the support rod 81 can be lowered only during window cleaning operations. When the inner and outer robots are separated from the glass surface, the device is tilted and maintained in an upward position by the spring, preventing the user's fingers from being pinched between the inner and outer robots, thereby avoiding accidental injury. This ensures the suction force of the suction device 2 and the effective operation of the cleaning components, improving the cleaning effect. The mechanically controlled anti-pinch device 8 reduces accidents caused by misoperation and protects the user's personal safety.

[0100] The user only needs to press the button 84 to easily control the closing of the anti-pinch device 8, which is simple and convenient to operate.

[0101] The addition of the anti-pinch device 8 makes the window cleaning robot safer and more user-friendly in the market, thereby enhancing the competitiveness of the product.

[0102] The design of the anti-pinch device 8 makes the robot suitable for various user groups, including the elderly and children, thereby increasing the popularity and application scope of the product.

[0103] The design of the spring 834 enables the transmission assembly 83 to maintain good reset performance after multiple uses, thereby improving the reliability and durability of the device.

[0104] By incorporating a transmission assembly 83 comprising a transmission rod 831, a stopper 832, a fixing block 833, and a spring 834 into the window-cleaning robot, this design not only effectively controls the rotation of the stopper hook 82, ensuring the proper functioning of the anti-pinch device 8, but also enhances the robot's safety and user-friendliness. This design makes the window-cleaning robot more competitive in the market, strengthens user trust in the brand, and improves the overall user experience.

[0105] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on the specific circumstances.

[0106] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0107] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0108] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A window cleaning robot, characterized in that: include: A machine body (1), an adsorption device (2), a driving device (3) and a wiping component (4); The body (1) is triangular, one side of the triangle is the front end of the body (1), and a corner corresponding to the side is the rear end of the body (1); The adsorption device (2) and the driving device (3) are provided in the machine body (1); The front end of the machine body (1) is provided with the wiping assembly (4), and the rear end of the machine body (1) is provided with a supporting wheel.

2. A window cleaning robot according to claim 1, characterized in that: The wiping assembly (4) comprises a friction strip (41) and a scraping strip (42); The friction strip (41) is arranged at the front end of the scraping strip (42).

3. A window cleaning robot according to claim 2, characterized in that: The front end of the machine body (1) is provided with a snap-fit ​​groove (5), and the scraping strip (42) is snap-fitted into the snap-fit ​​groove (5).

4. A window cleaning robot according to claim 3, characterized in that: The scraping strip (42) comprises a clamping portion (421), a connecting portion (422) and a scraping portion (423) which are connected in sequence; The clamping portion (421) is clamped in the clamping slot (5).

5. The window cleaning robot according to claim 4, characterized in that: The thickness of the scraping portion (423) gradually decreases from an end close to the connecting portion (422) to an end away from the connecting portion (422).

6. The window cleaning robot according to claim 1, characterized in that: It also includes a bracket (6) and a compression spring (7); The bracket (6) is detachably connected to the body (1); The wiping assembly (4) is provided at the bottom of the bracket (6), and the compression spring (7) is provided between the top of the bracket (6) and the machine body (1).

7. The window cleaning robot according to claim 1, characterized in that: Also includes two anti-pinch finger devices (8); The two anti-hand pinching devices (8) are both arranged in the machine body (1) and are respectively located on both sides of the adsorption device (2).

8. The window cleaning robot according to claim 7, characterized in that: The anti-hand pinching device (8) comprises a support rod (81), a position-limiting hook (82), a transmission assembly (83) and a button (84); The outer end of the support rod (81) is rotatably connected to the machine body (1), and the outer end of the support rod (81) is connected to the machine body (1) via a tension spring (85), so that the inner end of the support rod (81) is tilted; One end of the limit hook (82) is rotatably connected to the machine body (1), and the other end can be engaged with the outer end of the support rod (81), so that the inner end of the support rod (81) remains in a tilted state; The button (84) is arranged on the outer side wall of the body (1) and is connected to one end of the transmission assembly (83) arranged in the body (1); The transmission assembly (83) is connected to the limiting hook (82) to control the rotation of the limiting hook (82).

9. The window cleaning robot according to claim 8, characterized in that: The other end of the position-limiting hook (82) is provided with a bent hook portion (86), and the bent hook portion (86) is adapted to be engaged with the outer end of the support rod (81).

10. The window cleaning robot according to claim 8, characterized in that: The transmission assembly (83) includes a transmission rod (831), a limiting block (832) and a fixing block (833); The limiting block (832) is fixedly connected to the machine body (1); The transmission rod (831) passes through the limiting block (832); The fixing block (833) is fixedly connected to the transmission rod (831) and is located outside the limiting block (832); A spring (834) is provided on the transmission rod (831) and located between the limiting block (832) and the fixing block (833).

Images