Wheel leather for moving wheel of window cleaning machine and window cleaning machine
By setting transverse drainage grooves on the outside of the wheels of the window cleaning machine, the problem of water stain residue is solved, achieving a simple and effective water stain prevention effect without affecting the mobility and structural complexity of the window cleaning machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-31
AI Technical Summary
The existing combination structure of the moving wheels and wheel skin of window cleaning machines is prone to water stains during the cleaning process, and adding new structures or replacing devices may affect mobility and complexity.
A transverse drainage groove is provided on the outer side of the wheel skin of the window cleaning machine's moving wheel. It is made of rubber and matches the moving wheel. The drainage groove includes connected trapezoidal and elliptical spherical grooves, which are combined with protruding wheel strips to increase rigidity and drainage effect.
It effectively prevents water stains from remaining on the glass, while its simple structure makes it easy to replace and reduces product upgrade costs.
Smart Images

Figure CN224055890U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of window cleaning machine structure, specifically relating to a wheel skin for the moving wheels of a window cleaning machine and the window cleaning machine itself. Background Technology
[0002] Technological advancements have brought many conveniences to life, and smart home devices are becoming increasingly common. As people's demands for the quality of their living environment increase, the need for natural lighting in homes is receiving more and more attention, leading to an increase in the number of windows in rooms. This has provided room for the development of window cleaning machines.
[0003] Currently, window cleaning machines largely rely on a combination of moving wheels and vacuum suction to move across window surfaces, and most employ a structure where multiple moving wheels are covered with wheel skins. This structure meets the movement requirements of window cleaning machines in actual use, while the wheel skins reduce friction and pressure on the window surface during movement, minimizing wear and tear and protecting customer property. However, existing combinations of moving wheels and wheel skins have limitations. The wheel skin design only considers the interaction with the moving wheels. During window cleaning, the machine typically involves spraying water followed by cleaning with a cloth. Since the space occupied by the moving wheels does not overlap with the cleaning area of the cloth or the suction area of the fan, a small portion of the cleaning water may leave water stains within the moving area of the wheels.
[0004] However, if other methods are chosen to solve the problem of small water stains, such as adding new structures or replacing the moving device, the complexity of the structure will be increased, and it may also affect the movement of the window cleaning machine. There is an urgent need for a solution that can reduce the possibility of water stains forming on the glass where the moving wheels are located, without being complicated. Summary of the Invention
[0005] One of the purposes of this application is to provide a wheel skin for a window cleaning machine's moving wheel, which addresses the shortcomings of the prior art. The wheel skin has a drainage groove on the outer surface of the moving wheel. In practical applications, the drainage groove can drain water and prevent water stains from forming on the corresponding glass.
[0006] To achieve the above objectives, this application adopts the following technical solution:
[0007] A wheel cover for a window cleaning machine includes a support body having an inner side that contacts the moving wheel and an outer side relative to the inner side. The outer surface is provided with a plurality of drainage grooves that extend laterally through the outer surface.
[0008] In practical applications, the wheel skin is usually made of rubber. The wheel skin is fitted onto the moving wheel. When the corresponding moving wheel moves, the wheel skin also rolls. The support body makes the wheel skin rigid as a whole. The drainage groove plays a role in drainage and can prevent water stains from remaining on the glass corresponding to the moving wheel.
[0009] As an improvement to the wheel skin for the moving wheel of the window cleaning machine described in this application, the drainage channel includes a first channel and a second channel that are interconnected, with the first channel being away from the support body.
[0010] As an improvement to the wheel skin for the moving wheel of the window cleaning machine described in this application, the cross-section of the first groove is trapezoidal, and the diameter of the first groove increases sequentially from the opening of the drainage groove to the direction of the second groove.
[0011] As an improvement to the wheel skin for the moving wheel of the window cleaning machine described in this application, the shape of the second groove is set as an ellipsoid, and the minimum diameter of the second groove is greater than the maximum diameter of the first groove.
[0012] As an improvement to the wheel skin of the window cleaning machine moving wheel described in this application, the inner side is provided with a plurality of protruding wheel strips at continuous intervals in a direction away from the outer side.
[0013] As an improvement to the wheel skin for the moving wheels of the window cleaning machine described in this application, the protruding wheel strip, the drainage groove and the support body are integrally formed.
[0014] The second objective of this application is to provide a window cleaning machine, including a base shell and a fan, a ventilation duct, and a drive assembly disposed on the base shell. An air inlet is provided on the base shell, the air inlet end of the fan faces the air inlet, the air outlet end of the fan is connected to the air inlet end of the ventilation duct, the air outlet end of the ventilation duct is connected to the drive assembly, and the drive assembly includes a moving wheel and a wheel skin sleeved on the moving wheel, wherein the wheel skin is the wheel skin for the moving wheel of the window cleaning machine as described above.
[0015] The beneficial effects of this application are as follows: A wheel cover for a window cleaning machine's moving wheel includes a support body. The support body has an inner side that contacts the moving wheel and an outer side opposite to the inner side. The outer surface is provided with multiple drainage grooves, which transversely penetrate the outer surface. In practical applications, the wheel cover is matched and installed with the moving wheel. The drainage grooves serve to drain water during window cleaning machine operation, preventing water stains from remaining on the corresponding glass. Furthermore, this application only modifies the wheel cover, resulting in a simple structure, easy replacement, and reduced product upgrade costs. Attached Figure Description
[0016] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.
[0017] Figure 1 This is one of the structural schematic diagrams of Embodiment 1 of this application.
[0018] Figure 2 This is the second structural schematic diagram of Embodiment 1 of this application.
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0020] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application.
[0021] Figure 5 This is a partial structural diagram of Embodiment 2 of this application.
[0022] Figure 6 This is a connection diagram showing the positional relationship between the fan, ventilation duct, and installation components in Embodiment 2 of this application.
[0023] The reference numerals in the attached figures are explained as follows:
[0024] 100. Wheel skin; 101. Support body; 102. Inner side; 103. Outer side; 104. Drainage groove; 1041. First groove; 1042. Second groove; 105. Protruding wheel sprocket;
[0025] 200. Bottom shell; 201. Air inlet; 202. Mounting hole;
[0026] 300. Fan;
[0027] 400. Ventilation duct; 401. Air outlet;
[0028] 500. Drive assembly; 501. Casters; 502. Mounting components; 503. Ventilation components; 504. Ventilation openings;
[0029] X, first direction;
[0030] Z, the second direction. Detailed Implementation
[0031] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error. Furthermore, terms such as "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] The following is in conjunction with the appendix Figures 1-6 The present application will be further described in detail with reference to specific implementation methods, but this is not intended to limit the present application.
[0035] Implementation
[0036] The following is in conjunction with the appendix Figures 1-3 In describing implementation method one, it should be noted that, Figure 3 The midpoint line does not actually exist; it is used to distinguish the first groove 1041 from the second groove 1042.
[0037] A wheel cover for a window cleaning machine includes a support body 101. The support body 101 has an inner side 102 that contacts the moving wheel and an outer side 103 relative to the inner side 102. The outer side 103 has a plurality of drainage grooves 104 that transversely penetrate the surface of the outer side 103. The inner side 102 has a plurality of protruding wheel strips 105 that are continuously spaced apart in a direction away from the outer side 103. The protruding wheel strips 105 match the teeth of the moving wheel, which can increase the matching degree between the wheel cover and the moving wheel and prevent the wheel cover from falling off during use. The drainage grooves 104 play a role in draining water when the window cleaning machine is working, preventing water stains from remaining on the corresponding glass.
[0038] Preferably, the protruding wheel sprocket 105, drainage groove 104 and support body 101 are integrally formed, which ensures the overall physical strength of the wheel skin.
[0039] It should be noted that the wheel skin is made of rubber and has a certain degree of hardness. In the actual operation of the window cleaning machine, the outer side 103 where the drainage groove 104 is located will not be compressed. At the same time, the drainage groove 104 penetrates the outer side 103 in the first direction X, so that the drainage groove 104 does not form a closed space and will not hinder the normal movement of the window cleaning machine.
[0040] In addition, in this embodiment, there are multiple drainage channels 104, which are evenly spaced and the spacing is determined by the tooth structure of the moving wheel; in other embodiments, the distribution of drainage channels 104 can be changed according to actual needs.
[0041] In this embodiment, there is a solution where the overall shape of the drainage groove 104 is set to be narrow at the top and wide at the bottom. The opening width L1 of the drainage groove 104 is ≥ 1 mm, the depth of the drainage groove 104 in the second direction Z is D1, and the overall width of the wheel skin in the second direction Z is D2. D1 and D2 satisfy the relationship: 1 / 3 ≤ D1 / D2 ≤ 1 / 2. The narrow-at-the-top and wide-at-the-bottom structure and the parameter settings of the drainage groove 104 can ensure the overall hardness of the wheel skin while completing drainage.
[0042] The specific structure of the drainage trough 104 is as follows: The drainage trough 104 includes a first trough 1041 and a second trough 1042 that are interconnected. The first trough 1041 is away from the support body 101. The cross-section of the first trough 1041 is trapezoidal. The diameter of the first trough 1041 increases sequentially from the opening of the drainage trough 104 to the second trough 1042. The shape of the second trough 1042 is set as an ellipsoid. The minimum diameter of the second trough 1042 is greater than the maximum diameter of the first trough 1041. The structure of the drainage trough 104 can maximize the drainage volume while ensuring the overall hardness of the wheel skin and with the same opening of the drainage trough 104.
[0043] In other technical solutions of this embodiment, the shape of the drainage trough 104 can be changed according to actual needs.
[0044] Implementation
[0045] The following is in conjunction with the appendix Figures 4-6 Description of Implementation Method Two.
[0046] A window cleaning machine includes a base shell 200 and a fan 300, a ventilation duct 400, and a drive assembly 500 disposed on the base shell 200. An air inlet 201 is provided on the base shell 200. The air inlet end of the fan 300 faces the air inlet 201. The air outlet end of the fan 300 is connected to the air inlet end of the ventilation duct 400. The air outlet end of the ventilation duct 400 is connected to the drive assembly 500. The drive assembly 500 includes a moving wheel 501 and a wheel skin 100 sleeved on the moving wheel 501. The wheel skin 100 is the wheel skin for the moving wheel of the window cleaning machine described in Embodiment 1.
[0047] When the window cleaning machine is attached to a vertical plane, the drive assembly 500 moves to change the position of the window cleaning machine. The fan 300 operates, generating negative pressure at the air inlet 201, which attaches the window cleaning machine to the vertical plane. It can be understood that the window cleaning machine in this embodiment also has a housing, circuit control components, drive components, water nozzles, corner wheels equipped with return springs, mounting plates for installing cleaning cloths, and other components for completing the window cleaning function. However, these are not the main functions emphasized in this application, so they are not described in detail.
[0048] In this embodiment, the ventilation duct 400 is configured as an axisymmetric structure and has two air outlets 401. There are two drive components 500. The drive components 500 also include a mounting member 502 for mounting the moving wheels 501. The mounting member 502 protrudes towards the air outlet 401 and is provided with a ventilation component 503 that matches and is installed with the air outlet 401. The mounting member 502 is also provided with a plurality of ventilation openings 504 corresponding to the ventilation component 503. The plurality of ventilation openings 504 are distributed at intervals to control the wind speed and wind direction.
[0049] It is understandable that the number of air outlets 401 and drive components 500 can be set according to the actual situation, but at least one air outlet 401 should be set to correspond to one drive component 500.
[0050] Specifically, the bottom shell 200 is provided with mounting holes 202 for mounting the movable wheel 501 and wheel skin 100. There is a gap between the wheel skin 100 and the mounting hole 202. The air drawn out by the fan 300 passes through the ventilation duct 400, then enters the ventilation component 503, and flows out to the outside through the gap after passing through the ventilation port 504.
[0051] The beneficial effects of this embodiment are: the air outlet of the ventilation duct 400 is connected to the drive assembly 500, eliminating the need for a separate air outlet, reducing the steps in the overall processing of the window cleaning machine, and further ensuring the function of the drainage groove 104 on the wheel skin 100 in preventing water stains from remaining on the corresponding glass.
[0052] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this application is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this application are within the scope of protection of this application. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this application.
Claims
1. A wheel cover for a mobile wheel of a window cleaning machine, characterized in that The support body (101) has an inner side (102) in contact with the moving wheel and an outer side (103) opposite to the inner side (102), and the outer side (103) is provided with a plurality of drainage grooves (104) transversely penetrating the surface of the outer side (103).
2. The wheel cover for the mobile wheel of the window cleaning machine according to claim 1, wherein The drainage groove (104) comprises a first groove body (1041) and a second groove body (1042) in communication with each other, and the first groove body (1041) is away from the support body (101).
3. The wheel cover for the mobile wheel of the window cleaning machine according to claim 2, wherein The cross section of the first groove body (1041) is trapezoidal, and the diameter of the first groove body (1041) increases in turn along the opening direction of the drainage groove (104) to the second groove body (1042).
4. The wheel cover for the mobile wheel of the window cleaning machine according to claim 2, wherein The second groove body (1042) is in the shape of an oval sphere, and the minimum diameter of the second groove body (1042) is greater than the maximum diameter of the first groove body (1041).
5. The wheel cover for the mobile wheel of the window cleaning machine according to claim 1, wherein, The inner side (102) is continuously and spacedly provided with a plurality of convex wheel strips (105) away from the outer side (103).
6. The wheel cover for the mobile wheel of the window cleaning machine according to claim 5, wherein The convex wheel strip (105), the drainage groove (104) and the support body (101) are integrally formed.
7. A window cleaning machine, characterized in that The bottom shell (200), the fan (300), the ventilation duct (400) and the driving assembly (500) are provided on the bottom shell (200), and the bottom shell (200) is provided with an air inlet (201), the air inlet (201) is connected with the air inlet end of the fan (300), the air outlet end of the fan (300) is connected with the air inlet end of the ventilation duct (400), the air outlet end of the ventilation duct (400) is connected with the driving assembly (500), and the driving assembly (500) comprises a moving wheel (501) and a wheel skin (100) sleeved on the moving wheel (501), and the wheel skin (100) is the wheel skin for the window cleaning machine moving wheel according to any one of claims 1-6.