A window cleaning machine

By driving the first deflector rod to rotate and the second deflector rod to form a parallelogram structure through the hydraulic rod, combined with the worm gear and bidirectional threaded rod transmission, the problem of the suspended basket mounting rod swaying and not being level is solved. This enables the suspended basket to maintain its level and make precise angle adjustment at any elevation angle, thus improving the cleaning effect and safety of the window cleaning machine.

CN224523004UActive Publication Date: 2026-07-21SHANGHAI GENHUB ENG EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI GENHUB ENG EQUIP CO LTD
Filing Date
2025-07-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing window cleaning machines are prone to wobbling and becoming uneven during angle adjustment, posing a safety risk, and are difficult to adapt to the cleaning needs of windows at different tilt angles.

Method used

A hydraulic rod drives the first deflector rod to rotate, which, together with the second deflector rod, forms a parallelogram-shaped stable structure. Combined with a worm gear and a two-way threaded rod transmission structure, the suspended platform mounting rod can remain horizontal at any elevation angle. The angle of the suspended platform can be precisely adjusted by adjusting the motor.

Benefits of technology

Ensure that the suspended platform mounting rod remains horizontal at any angle of elevation, improve the stability of the cleaning operation posture, reduce safety risks, adapt to the window cleaning needs at different tilt angles, and improve the cleaning effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224523004U_ABST
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Abstract

The utility model discloses a window cleaning machine, including hollow base, both sides of hollow base are equipped with cross bar, be equipped with adjusting mechanism between two cross bar, the bottom of each cross bar all is fixedly connected with sliding block, the below of each cross bar all is equipped with I -beam guide rail, each sliding block is respectively set in the outer wall of corresponding I -beam guide rail, the top of hollow base is rotatably connected with stand, the top fixedly connected with first fixed frame of stand. The utility model discloses through hydraulic rod drive first deflection rod rotation, cooperation second deflection rod forms parallelogram stable structure, can ensure that the hanging basket installation pole keeps horizontal state under any elevation angle, adjusts motor further realizes the accurate rotation of hanging basket angle, can adapt to the window cleaning demand of different inclination angle, guarantees the cleaning operation posture steady, promotes the cleaning effect and reduces the security risk.
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Description

Technical Field

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

[0002] In the field of modern architecture, with the acceleration of urbanization and the continuous development of building technology, high-rise buildings are becoming increasingly common. These buildings typically use large-area glass curtain walls as their facades to enhance aesthetics and lighting. However, cleaning and maintaining glass curtain walls has become a major challenge, and window cleaning machines, as specialized equipment for solving this problem, are crucial in terms of performance and adaptability.

[0003] Existing window cleaning machines have a suspended basket attached to their end via a rope, where workers stand to clean the glass. However, when cleaning different areas of the glass, the window cleaning machine needs to be adjusted. But during the angle adjustment process, the mounting rod connecting the window cleaning machine to the suspended basket at its end is prone to swaying and becoming uneven, which can easily cause danger to the workers standing in the basket. To solve the above problems, this application proposes a new window cleaning machine. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a window cleaning machine. This machine uses a hydraulic rod to drive a first deflector rod to rotate, which, together with a second deflector rod, forms a stable parallelogram structure. This ensures that the suspended platform mounting rod remains horizontal at any elevation angle. Adjusting the motor further enables precise rotation of the suspended platform angle, allowing it to adapt to the cleaning needs of windows at different tilt angles, ensuring a stable cleaning posture, improving cleaning efficiency, and reducing safety risks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A window cleaning machine includes a hollow base with crossbars on both sides. An adjustment mechanism is provided between the two crossbars. A slider is fixedly connected to the bottom of each crossbar. An I-beam guide rail is provided below each crossbar. Each slider is respectively sleeved on the outer wall of the corresponding I-beam guide rail. A column is rotatably connected to the top of the hollow base. A first fixing frame is fixedly connected to the top of the column. A first deflecting rod is rotatably connected to the first fixing frame. A second fixing frame is rotatably connected to the end of the first deflecting rod. The first fixing frame and the second fixing frame are rotatably connected to a second deflecting rod. A hydraulic rod is rotatably connected to the side wall of the column. The end of the hydraulic rod is rotatably connected to the bottom of the first deflecting rod.

[0007] Preferably, the adjusting mechanism includes a worm gear that passes through and is rotatably connected to the hollow base. A handle is fixedly connected to one end of the worm gear away from the hollow base. The worm gear meshes with a worm wheel. Both ends of the worm wheel are coaxially fixedly connected to threaded rods. Two limiting blocks are fixedly connected to the inner wall of the hollow base. The two threaded rods pass through the corresponding limiting blocks and are rotatably connected to them. A sliding plate is threadedly connected to the outer wall of each threaded rod. The two sliding plates pass through the hollow base and are slidably connected to it. The ends of the two sliding plates are fixedly connected to the side walls of their corresponding crossbars.

[0008] Preferably, a first rotating wheel is rotatably connected to the bottom of the slider, the first rotating wheel abuts against the top of the I-beam guide rail, a travel motor is fixedly connected to the side wall of the slider, the output shaft of the travel motor is coaxially fixedly connected to the first rotating wheel, and four second rotating wheels are rotatably connected to the bottom of the slider. The four second rotating wheels are arranged in a rectangular pattern, and the outer walls of the four second rotating wheels abut against the side wall of the I-beam guide rail.

[0009] Preferably, a large gear is fixedly connected to the outer wall of the column, a steering motor is fixedly connected to the side wall of the column, and a small gear is fixedly connected to the end of the output shaft of the steering motor, the small gear meshing with the large gear.

[0010] Preferably, an adjustment motor is fixedly connected to the bottom of the second fixed frame, the output shaft of the adjustment motor passes through the second fixed frame and is rotatably connected to it, and a basket mounting rod is fixedly connected to the end of the output shaft of the adjustment motor.

[0011] Preferably, the two threaded rods are arranged with opposite thread directions, and a rectangular anti-detachment block is fixedly connected to the outer wall of the sliding plate. The rectangular anti-detachment block is located inside the hollow base and is slidably connected to its inner wall.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. Through the transmission structure of worm gear and double-threaded rod, the distance between the two crossbars can be infinitely adjusted, which can adapt to the installation spacing requirements of different tracks.

[0014] 2. The first rotating wheel at the bottom of the slider and the four rectangularly distributed second rotating wheels form a multi-wheel cooperative structure. While the drive wheel provides the power for walking, the lateral second rotating wheels abut against the side wall of the guide rail to form a guide limit, which can effectively prevent the risk of walking deviation and derailment. It can still maintain stable operation when the track is uneven, ensuring the safety and efficiency of operation.

[0015] 3. The hydraulic rod drives the first deflector rod to rotate, which, together with the second deflector rod, forms a parallelogram stable structure, ensuring that the suspended platform mounting rod remains horizontal at any elevation angle; adjusting the motor further enables precise rotation of the suspended platform angle, which can adapt to the window cleaning needs of different tilt angles, ensuring a stable cleaning posture, improving cleaning effect and reducing safety risks.

[0016] In summary, by driving the first deflector rod to rotate via a hydraulic rod, and cooperating with the second deflector rod to form a stable parallelogram structure, the installation rod of the suspended platform can be kept horizontal at any elevation angle. Adjusting the motor further enables precise rotation of the suspended platform angle, which can adapt to the window cleaning needs at different tilt angles, ensure a stable cleaning posture, improve cleaning effect, and reduce safety risks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first structure of a window cleaning machine proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the second structure of a window cleaning machine proposed in this utility model;

[0019] Figure 3 This is a partial structural diagram of a window cleaning machine proposed in this utility model.

[0020] In the diagram: 1 Hollow base, 2 Horizontal bar, 3 Slider, 4 I-beam guide rail, 5 Column, 6 Large gear, 7 Steering motor, 8 Small gear, 9 First fixing frame, 10 First deflection rod, 11 Second fixing frame, 12 Second deflection rod, 13 Hydraulic rod, 14 Adjusting motor, 15 Suspended basket mounting rod, 16 Worm gear, 17 Handle, 18 Worm wheel, 19 Threaded rod, 20 Sliding plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3A window cleaning machine includes a hollow base 1, with crossbars 2 on both sides of the hollow base 1. An adjustment mechanism is provided between the two crossbars 2. The adjustment mechanism includes a worm gear 16 that passes through and is rotatably connected to the hollow base 1. A handle 17 is fixedly connected to the end of the worm gear 16 away from the hollow base 1. The worm gear 16 meshes with a worm wheel 18. Threaded rods 19 are coaxially fixedly connected to both ends of the worm wheel 18. Two limiting blocks are fixedly connected to the inner wall of the hollow base 1. The two threaded rods 19 pass through the corresponding limiting blocks and are rotatably connected to them. The limiting blocks provide support and positioning for the threaded rods 19, ensuring their stability. Rotation: Each threaded rod 19 has a sliding plate 20 threadedly connected to its outer wall. The threads of the two threaded rods 19 are arranged in opposite directions. A rectangular anti-detachment block is fixedly connected to the outer wall of the sliding plate 20. The rectangular anti-detachment block prevents the sliding plate 20 from detaching from the hollow base 1, ensuring the stability of the adjustment process. The rectangular anti-detachment block is located inside the hollow base 1 and is slidably connected to its inner wall. The rectangular anti-detachment block can limit the sliding plate 20 so that it can only move. Both sliding plates 20 pass through the hollow base 1 and are slidably connected to it. The ends of the two sliding plates 20 are fixedly connected to the side walls of their corresponding crossbars 2.

[0023] Each crossbar 2 has a slider 3 fixedly connected to its bottom. Each crossbar 2 has an I-beam guide rail 4 below it. Each slider 3 is fitted onto the outer wall of the corresponding I-beam guide rail 4. A first rotating wheel is rotatably connected to the bottom of the slider 3. The first rotating wheel abuts against the top of the I-beam guide rail 4. A travel motor is fixedly connected to the side wall of the slider 3. The output shaft of the travel motor is coaxially fixedly connected to the first rotating wheel. The travel motor drives the first rotating wheel to rotate, providing travel power for the window cleaning machine. Four second rotating wheels are rotatably connected to the bottom of the slider 3. The four second rotating wheels are arranged in a rectangular shape. The outer walls of the four second rotating wheels abut against the side walls of the I-beam guide rail 4. The four second rotating wheels guide and limit the slider 3, ensuring that it moves smoothly along the I-beam guide rail 4.

[0024] A column 5 is rotatably connected to the top of the hollow base 1. A large gear 6 is fixedly connected to the outer wall of the column 5. A steering motor 7 is fixedly connected to the side wall of the column 5. A small gear 8 is fixedly connected to the end of the output shaft of the steering motor 7. The small gear 8 meshes with the large gear 6. The steering motor 7 drives the column 5 to rotate through the meshing of the small gear 8 and the large gear 6 to realize the steering function of the window cleaning machine.

[0025] A first fixing frame 9 is fixedly connected to the top of the column 5. A first deflection rod 10 is rotatably connected to the first fixing frame 9. A second fixing frame 11 is rotatably connected to the end of the first deflection rod 10. An adjustment motor 14 is fixedly connected to the bottom of the second fixing frame 11. The output shaft of the adjustment motor 14 passes through the second fixing frame 11 and is rotatably connected to it. A suspended basket mounting rod 15 is fixedly connected to the end of the output shaft of the adjustment motor 14. The adjustment motor 14 drives the suspended basket mounting rod 15 to rotate, thereby achieving precise adjustment of the suspended basket angle. A second deflection rod 12 is rotatably connected to the first fixing frame 9 and the second fixing frame 11. The extension and retraction of the hydraulic rod 13 drives the first deflection rod 10 to rotate. Through the parallelogram structure formed by the first deflection rod 10, the second deflection rod 12, and the second fixing frame 11, the suspended basket mounting rod 15 is ensured to always remain horizontal. A hydraulic rod 13 is rotatably connected to the side wall of the column 5. The end of the hydraulic rod 13 is rotatably connected to the bottom of the first deflection rod 10.

[0026] In this invention, the operator fixes two parallel I-beam guide rails 4 on a flat surface. The distance between the two sliders 3 can be adjusted based on the spacing between the two I-beam guide rails 4. The operator holds the handle 17 and rotates it, causing the worm gear 16, worm wheel 18, and two threaded rods 19 to rotate, making the sliding plates 20 on both sides move relative to or away from each other. This adjusts the distance between the two crossbars 2 and the sliders 3 as needed. The window cleaning machine is then hoisted onto one side of the two I-beam guide rails 4 using hoisting equipment. The sliders 3 are then fitted onto the I-beam guide rails 4 to complete the installation. When the traveling motor starts, the first rotating wheel rotates and contacts the top of the I-beam guide rail 4, generating friction and causing the sliders 3 to move along the I-beam guide rail 4. Simultaneously, the four second rotating wheels at the bottom of the sliders 3, arranged in a rectangular pattern, abut against the side walls of the I-beam guide rail 4, providing guidance and stability, ensuring the sliders 3 slide smoothly along the I-beam guide rail 4, thus driving the entire window cleaning machine. The machine moves along the guide rail to achieve overall position adjustment. When the steering motor 7 is started, it drives the pinion 8 to rotate. Through the meshing transmission between the pinion 8 and the large gear 6, the column 5 rotates on the top of the hollow base 1, realizing the overall steering of the window cleaning machine. When the hydraulic rod 13 extends or retracts, it pushes the first deflection rod 10 to rotate around its rotation connection point with the first fixed frame 9. At the same time, the end of the first deflection rod 10 is rotatably connected to the second fixed frame 11, and the two ends of the second deflection rod 12 are rotatably connected to the first fixed frame 9 and the second fixed frame 11, respectively, forming a parallelogram structure. This ensures that the second fixed frame 11 and the hanging basket mounting rod 15 can remain horizontal under any elevation angle. In addition, the adjustment motor 14 is installed at the bottom of the second fixed frame 11. The hanging basket mounting rod 15 at the end of its output shaft can rotate under the drive of the adjustment motor 14, further precisely adjusting the angle of the hanging basket installed on the hanging basket mounting rod 15 to adapt to the cleaning work of windows at different angles.

Claims

1. A window cleaning machine, comprising a hollow base (1), characterized in that, The hollow base (1) has crossbars (2) on both sides, and an adjustment mechanism is provided between the two crossbars (2). A slider (3) is fixedly connected to the bottom of each crossbar (2). An I-beam guide rail (4) is provided below each crossbar (2). Each slider (3) is respectively sleeved on the outer wall of the corresponding I-beam guide rail (4). A column (5) is rotatably connected to the top of the hollow base (1). A first fixing frame (9) is fixedly connected to the top of the column (5). A first deflection rod (10) is rotatably connected to the first fixing frame (9). A second fixing frame (11) is rotatably connected to the end of the first deflection rod (10). A second deflection rod (12) is rotatably connected to the first fixing frame (9) and the second fixing frame (11). A hydraulic rod (13) is rotatably connected to the side wall of the column (5). The end of the hydraulic rod (13) is rotatably connected to the bottom of the first deflection rod (10).

2. A window cleaning machine according to claim 1, characterized in that, The adjustment mechanism includes a worm (16) that passes through and is rotatably connected to the hollow base (1). A handle (17) is fixedly connected to one end of the worm (16) away from the hollow base (1). The worm (16) is engaged with a worm wheel (18). Both ends of the worm wheel (18) are coaxially fixedly connected to threaded rods (19). Two limiting blocks are fixedly connected to the inner wall of the hollow base (1). The two threaded rods (19) pass through the corresponding limiting blocks and are rotatably connected to them. The outer wall of each threaded rod (19) is fitted with a sliding plate (20) that is threadedly connected to it. The two sliding plates (20) pass through the hollow base (1) and are slidably connected to it. The ends of the two sliding plates (20) are fixedly connected to the side wall of their corresponding crossbars (2).

3. A window cleaning machine according to claim 1, characterized in that, The bottom of the slider (3) is rotatably connected to a first rotating wheel, which abuts against the top of the I-beam guide rail (4). A walking motor is fixedly connected to the side wall of the slider (3), and the output shaft of the walking motor is coaxially fixedly connected to the first rotating wheel. The bottom of the slider (3) is rotatably connected to four second rotating wheels, which are arranged in a rectangular pattern. The outer walls of the four second rotating wheels abut against the side wall of the I-beam guide rail (4).

4. A window cleaning machine according to claim 1, characterized in that, A large gear (6) is fixedly connected to the outer wall of the column (5), and a steering motor (7) is fixedly connected to the side wall of the column (5). A small gear (8) is fixedly connected to the end of the output shaft of the steering motor (7), and the small gear (8) meshes with the large gear (6).

5. A window cleaning machine according to claim 1, characterized in that, An adjustment motor (14) is fixedly connected to the bottom of the second fixed frame (11). The output shaft of the adjustment motor (14) passes through the second fixed frame (11) and is rotatably connected to it. The end of the output shaft of the adjustment motor (14) is fixedly connected to the basket mounting rod (15).

6. A window cleaning machine according to claim 2, characterized in that, The two threaded rods (19) are arranged in opposite directions. A rectangular anti-detachment block is fixedly connected to the outer wall of the sliding plate (20). The rectangular anti-detachment block is located inside the hollow base (1) and is slidably connected to its inner wall.