Intelligent adsorption window cleaning robot
By adjusting the suction force of the cleaning robot's cloth tray using an electric air valve module, the slippage problem caused by uneven suction force of the cloth tray is solved, resulting in a more stable and efficient window cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING FORMATE TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-12
AI Technical Summary
Existing window cleaning robots have insufficient suction power when the stationary cleaning cloth disc is in motion, while the rotating cleaning cloth disc has excessive suction power, causing slippage and affecting the smoothness of movement and window cleaning efficiency.
An electric air valve module is used to adjust the suction force of the two wiping cloth trays. By adjusting the cross-sectional area of the connection between the negative pressure fan and the air duct, it is ensured that the suction force of the stationary wiping cloth tray increases while the suction force of the moving wiping cloth tray decreases, thereby improving stability and smoothness.
This improves the stability and efficiency of the window cleaning robot, avoids slippage of the cleaning cloth tray, and ensures effective cleaning.
Smart Images

Figure CN224220043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of window cleaning robot technology, and in particular to a smart adsorption window cleaning robot. Background Technology
[0002] Window cleaning robots, also known as automatic window cleaners, glass cleaning robots, smart window cleaners, and intelligent window cleaners, are a type of smart home appliance. They use a vacuum pump or fan at their base to firmly adhere to the glass, and then, with the help of artificial intelligence, automatically detect the distance to the window's corners and plan the cleaning path. Window cleaning robots typically use the force of their adhesion to the glass to move a cloth at the bottom of the machine to wipe away dirt and grime.
[0003] However, in existing window cleaning robots, the two cleaning trays are supported by a negative pressure device to maintain consistent suction. During robot movement, the suction of the stationary tray is insufficient, while the suction of the rotating tray is too strong, causing slippage and affecting the robot's smoothness and reducing cleaning efficiency. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the existing technology, it is desirable to provide a smart adsorption window cleaning robot that adjusts the adsorption force of the two cleaning cloth trays through an electric air valve module, thereby improving the smoothness and stability of movement and increasing window cleaning efficiency.
[0005] This utility model provides an intelligent adsorption window cleaning robot, including a shell; the bottom of the shell is provided with two sets of wiping cloth trays; each of the two sets of wiping cloth trays is provided with an independent driving mechanism; the bottom surface of each wiping cloth tray is provided with an adsorption cavity; the shell is provided with two air ducts that correspond to and communicate with the two adsorption cavities.
[0006] A negative pressure fan, an electric valve module, and a controller are fixedly installed inside the housing; the drive mechanism, the negative pressure fan, and the electric valve module are all electrically connected to the controller; both air ducts are connected to the input end of the negative pressure fan through the electric valve module; the electric valve module is used to adjust the cross-sectional area of the two air ducts connected to the negative pressure fan.
[0007] Furthermore, the driving mechanism includes a first driving motor, the wiping disc is rotatably connected to the housing via a rotating shaft, a worm gear is fixedly sleeved on the rotating shaft, a first worm is meshed with one side of the worm gear, and the first worm is fixedly connected to the output shaft of the first driving motor.
[0008] Furthermore, the two sets of the first drive motors are respectively fixedly installed inside the housing and are centrally symmetrically distributed.
[0009] Furthermore, the electric air valve module includes a mounting cavity disposed within the housing. One side of the mounting cavity is connected to two air ducts respectively. An air valve wheel is rotatably disposed within the mounting cavity. An air inlet is provided on the side of the air valve wheel near the connection between the mounting cavity and the two air ducts. A worm gear is provided on the outer wall of the other side. A second worm is meshed with the outer side of the worm gear. A second drive motor for driving the second worm to rotate is fixedly disposed within the mounting cavity. The air inlet is connected to the input end of a negative pressure fan.
[0010] Furthermore, two adjacent connecting ports are opened on one side of the mounting cavity, and the two connecting ports are connected to the two air ducts one to one; the outer wall of the valve wheel is sealed and slidably abutted against the two connecting ports respectively; the air inlet is connected to the input end of the negative pressure fan through the connecting cavity inside the valve wheel.
[0011] Furthermore, an exhaust window is provided on the outer side of the housing located at the output end of the negative pressure fan.
[0012] Furthermore, a storage battery electrically connected to the controller is fixedly installed inside the housing.
[0013] Furthermore, a speaker electrically connected to the controller is fixedly installed inside the housing, and through holes are densely distributed on the outer side of the speaker on the housing.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model of a window cleaning robot includes a shell, a cloth tray, a drive mechanism, an air duct, a negative pressure fan, an electric valve module, and a controller. The negative pressure fan creates negative pressure in the adsorption chambers of the two cloth trays, causing them to adhere to the glass. When the window cleaning robot moves and cleans the window, the electric valve module adjusts the adsorption force by regulating the cross-sectional area connecting the air duct and the negative pressure fan. This increases the adsorption force of the stationary cloth tray and decreases the adsorption force of the rotating cloth tray, ensuring the stability of the window cleaning robot while improving its smooth movement, avoiding slippage, and increasing window cleaning efficiency.
[0016] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description
[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0018] Figure 1 This is a structural diagram of a window cleaning robot;
[0019] Figure 2 This is a schematic diagram of the internal structure of a window cleaning robot;
[0020] Figure 3 This is a schematic diagram of the structure of an electric pneumatic valve module.
[0021] The following components are labeled in the diagram: 1. Housing; 2. Cloth tray; 3. Drive mechanism; 4. Air duct; 5. Negative pressure fan; 6. Electric air valve module; 7. Controller; 8. Battery; 9. Speaker.
[0022] 11. Ventilation window; 12. Through hole;
[0023] 21. Shaft;
[0024] 31. First drive motor; 32. Worm gear; 33. First worm;
[0025] 61. Mounting cavity; 62. Valve wheel; 63. Air inlet; 64. Worm gear; 65. Second worm; 66. Second drive motor; 67. Connecting port; 68. Connecting cavity. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0027] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] Please refer to Figures 1-3 The present invention provides an intelligent adsorption window cleaning robot, including a shell 1; two sets of wiping trays 2 are provided at the bottom of the shell 1; each of the two sets of wiping trays 2 is provided with an independent driving mechanism 3; each of the bottom surfaces of the wiping trays 2 is provided with an adsorption cavity; and two air ducts 4 are provided inside the shell 1 that correspond to and are connected to the two adsorption cavities.
[0029] A negative pressure fan 5, an electric valve module 6, and a controller 7 are fixedly installed inside the housing 1; the drive mechanism 3, the negative pressure fan 5, and the electric valve module 6 are all electrically connected to the controller 7; both air ducts 4 are connected to the input end of the negative pressure fan 5 through the electric valve module 6; the electric valve module 6 is used to adjust the cross-sectional area of the two air ducts 4 connected to the negative pressure fan 5.
[0030] In this embodiment, when the window cleaning robot (hereinafter referred to as the robot) is working, the negative pressure fan 5 is first started, and then the robot is attached to the window. At this time, a negative pressure is formed in the adsorption chamber, which causes the robot to adhere to the glass. Then the cleaning process is started, and the window is wiped by the wiping cloth cover on the wiping cloth tray 2.
[0031] As the robot moves on the glass, the electric air valve module 6 adjusts the cross-sectional area of the two air ducts 4 connected to the negative pressure fan 5, thereby adjusting the magnitude of the suction force. This increases the suction force of the stationary wiping cloth tray 2 and decreases the suction force of the rotating wiping cloth tray 2. The stationary wiping cloth tray 2 becomes more stable, while the moving wiping cloth tray 2 moves more smoothly, avoiding slippage and ensuring the window cleaning effect while improving cleaning efficiency.
[0032] In a preferred embodiment, such as Figure 3 As shown, the drive mechanism 3 includes a first drive motor 31, the wiping disc 2 is rotatably connected to the housing 1 through a rotating shaft 21, a worm gear 32 is fixedly sleeved on the rotating shaft 21, a first worm 33 is meshed on one side of the worm gear 32, and the first worm 33 is fixedly connected to the output shaft of the first drive motor 31.
[0033] In this embodiment, the first drive motor 31 drives the wiping disc 2 to rotate through the first worm 33 and worm wheel 32, thereby moving the robot and wiping the glass at the same time, resulting in a good driving effect.
[0034] In a preferred embodiment, such as Figure 3 As shown, the first drive motors 31 are fixedly installed inside the housing 1 and are centrally symmetrically distributed to ensure the balance of the robot's weight.
[0035] In a preferred embodiment, such as Figure 3 As shown, the electric valve module 6 includes an installation cavity 61 disposed within the housing 1. One side of the installation cavity 61 is connected to two air ducts 4 respectively. A valve wheel 62 is rotatably disposed within the installation cavity 61. An air inlet 63 is provided on the side of the valve wheel 62 near the connection between the installation cavity 61 and the two air ducts 4. A worm gear tooth 64 is provided on the outer wall of the other side. A second worm 65 is meshed with the outer side of the worm gear tooth 64. A second drive motor 66 that drives the second worm 65 to rotate is fixedly disposed within the installation cavity 61. The air inlet 63 is connected to the input end of the negative pressure fan 5.
[0036] In this embodiment, when the robot moves, the second drive motor 66 drives the second worm gear 65 to rotate, which in turn drives the air valve wheel 62 to rotate through the worm gear teeth 64. This adjusts the effective area of the air inlet 63 connected to the two air ducts 4, increasing the effective area of the air duct 4 connected to the stationary wiping cloth tray 2 and decreasing the effective area of the air duct 4 connected to the moving wiping cloth tray 2. This increases the adsorption force of the stationary wiping cloth tray 2 and decreases the adsorption force of the moving wiping cloth tray 2.
[0037] When the previously moved cloth tray 2 remains stationary, and when the previously stationary cloth tray 2 moves, the second drive motor 66 drives the air valve wheel 62 to rotate in the opposite direction, switching the suction force. The suction force is greater when the cloth tray 2 remains stationary, and less when the cloth tray 2 moves, improving the robot's stability and smoothness of movement.
[0038] In a preferred embodiment, such as Figure 3 As shown, two adjacent connecting ports 67 are opened on one side of the mounting cavity 61. The two connecting ports 67 are connected to the two air ducts 4 one by one to facilitate the adjustment of the adsorption force. The outer wall of the valve wheel 62 is sealed and slidably abutted against the two connecting ports 67 to ensure the airtightness of the air passage. The air inlet 63 is connected to the input end of the negative pressure fan 5 through the connecting cavity 68 inside the valve wheel 62.
[0039] In a preferred embodiment, such as Figure 1 As shown, an exhaust window 11 is provided on the outer side of the output end of the negative pressure fan 5 on the housing 1 to ensure that the air discharged by the negative pressure fan 5 is quickly discharged from the housing 1.
[0040] In a preferred embodiment, such as Figure 3 As shown, a battery 8, electrically connected to the controller 7, is fixedly installed inside the housing 1 to power the robot. A lithium battery is preferred due to its small size and excellent battery life.
[0041] In a preferred embodiment, such as Figure 1 and Figure 3 As shown, a speaker 9 electrically connected to the controller 7 is fixedly installed inside the housing 1. Through holes 12 are densely distributed on the outer side of the speaker 9 on the housing 1 so that the robot can provide voice prompts when it is working.
[0042] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0043] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions 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 one or more embodiments or examples.
[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A smart adsorption window cleaning robot, characterized in that, Includes a housing (1); the bottom of the housing (1) is provided with two sets of wiping trays (2); the two sets of wiping trays (2) are respectively provided with independent driving mechanisms (3); the bottom surface of each wiping tray (2) is provided with an adsorption cavity; the housing (1) is provided with two air ducts (4) that are corresponding to and connected to the two adsorption cavities. The housing (1) is fixedly equipped with a negative pressure fan (5), an electric valve module (6) and a controller (7); the drive mechanism (3), the negative pressure fan (5) and the electric valve module (6) are all electrically connected to the controller (7); the two air ducts (4) are connected to the input end of the negative pressure fan (5) through the electric valve module (6); the electric valve module (6) is used to adjust the cross-sectional area of the two air ducts (4) connected to the negative pressure fan (5).
2. The intelligent adsorption window cleaning robot according to claim 1, characterized in that, The drive mechanism (3) includes a first drive motor (31), the wiping disc (2) is rotatably connected to the housing (1) through a rotating shaft (21), a worm gear (32) is fixedly sleeved on the rotating shaft (21), a first worm (33) is meshed on one side of the worm gear (32), and the first worm (33) is fixedly connected to the output shaft of the first drive motor (31).
3. The intelligent adsorption window cleaning robot according to claim 2, characterized in that, The two sets of the first drive motors (31) are respectively fixedly installed inside the housing (1) and are centrally symmetrically distributed.
4. The intelligent adsorption window cleaning robot according to claim 1, characterized in that, The electric valve module (6) includes an installation cavity (61) disposed in the housing (1). One side of the installation cavity (61) is connected to two air ducts (4). A valve wheel (62) is rotatably disposed in the installation cavity (61). An air inlet (63) is provided on the side of the valve wheel (62) near the connection between the installation cavity (61) and the two air ducts (4). A worm gear tooth (64) is provided on the outer wall of the other side. A second worm (65) is meshed with the outer side of the worm gear tooth (64). A second drive motor (66) for driving the second worm (65) to rotate is fixedly disposed in the installation cavity (61). The air inlet (63) is connected to the input end of the negative pressure fan (5).
5. The intelligent adsorption window cleaning robot according to claim 4, characterized in that, Two adjacent connecting ports (67) are opened on one side of the mounting cavity (61), and the two connecting ports (67) are connected to the two air ducts (4) respectively; the outer wall of the valve wheel (62) is sealed and slidably abutted against the two connecting ports (67); the air inlet (63) is connected to the input end of the negative pressure fan (5) through the connecting cavity (68) inside the valve wheel (62).
6. The intelligent adsorption window cleaning robot according to claim 1, characterized in that, An exhaust window (11) is provided on the outer side of the output end of the negative pressure fan (5) on the housing (1).
7. The intelligent adsorption window cleaning robot according to claim 1, characterized in that, A battery (8) electrically connected to the controller (7) is fixedly installed inside the housing (1).
8. The intelligent adsorption window cleaning robot according to claim 1, characterized in that, A speaker (9) electrically connected to the controller (7) is fixedly installed inside the housing (1), and through holes (12) are densely distributed on the outer side of the speaker (9) on the housing (1).