Curtain wall glass cleaning robot

By using a curtain wall glass cleaning robot that dynamically adjusts the cleaning intensity, and combining blowing, brushing, and water spraying methods, the problem of low cleaning efficiency and insufficient safety of high-rise building curtain wall glass has been solved, achieving a highly efficient and energy-saving cleaning effect.

CN223979773UActive Publication Date: 2026-03-10NANJING UNIV OF INFORMATION SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing high-rise building curtain wall glass cleaning equipment has risks of high-altitude operation, low cleaning efficiency, and high cost. In addition, traditional robot cleaning effect is limited and cannot dynamically adjust the cleaning intensity, resulting in incomplete cleaning or excessive wear on the glass.

Method used

The curtain wall glass cleaning robot adopts dynamic adjustment of cleaning intensity, combining three cleaning methods: blowing, brushing and water spraying. It achieves periodic pressure changes of the bristles through cleaning components driven by dual-axis motors and raised structures, and improves the cleaning effect by combining air jet and water spray components, while reducing energy consumption by using motor-driven airflow.

Benefits of technology

It significantly improves the cleaning effect of curtain wall glass in high-rise buildings, especially the ability to remove stubborn stains, reduces energy consumption, improves automation and safety, and avoids excessive glass wear.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223979773U_ABST
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Abstract

The utility model provides a curtain wall glass cleaning robot. The curtain wall glass cleaning robot comprises a shell, a storage battery, a controller, a mechanical arm, an electric glass suction cup and a cleaning unit. The cleaning unit adopts a double-shaft motor to drive fan blades to blow dust, and a plurality of cleaning assemblies are driven through gear transmission to rotationally brush glass. Bristles are arranged on a rotating disc of the cleaning assembly and matched with protruding structures and springs of an upper circular ring and a lower circular ring, so that the pressure of the bristles changes periodically, and the cleaning effect is enhanced. Meanwhile, automatic water spraying is achieved through the air flow passing through the air guide pipe and the Venturi pipe, and the cleaning efficiency is further improved. The high-rise building curtain wall cleaning device has the advantages of dynamically adjusting cleaning strength, efficiently removing dust, saving energy, protecting environment and the like, and is suitable for automatic cleaning of high-rise building curtain walls.
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Description

Technical Field

[0001] This utility model relates to the field of curtain wall glass cleaning technology, specifically a curtain wall glass cleaning robot. Background Technology

[0002] Currently, the cleaning of curtain wall glass in high-rise buildings mainly relies on manual labor or traditional window cleaning robots. Manual cleaning involves risks associated with working at heights, is inefficient, and costly; while most existing window cleaning robots use fixed cleaning brushes or water spray devices, resulting in limited cleaning effectiveness and difficulty in thoroughly removing stubborn stains and dust. In addition, traditional robots maintain constant brush pressure during the cleaning process, failing to dynamically adjust for different levels of contamination, leading to incomplete cleaning or excessive abrasion of the glass surface.

[0003] Therefore, there is an urgent need for a high-efficiency curtain wall glass cleaning robot that can automatically adjust the cleaning intensity and combine blowing and brushing methods to improve cleaning effectiveness and safety. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a curtain wall glass cleaning robot that dynamically adjusts cleaning intensity, efficiently removes dust, and is energy-saving and environmentally friendly.

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

[0006] A curtain wall glass cleaning robot includes a housing, a battery, a controller, a robotic arm, and an electric glass suction cup. The battery, controller, and robotic arm are mounted on the housing, and the electric glass suction cup is mounted on the robotic arm. The robotic arm, battery, and electric glass suction cup are electrically connected to the controller. The robot also includes a cleaning unit. The cleaning unit includes fan blades, a dual-axis motor, a drive gear, and multiple cleaning components. The dual-axis motor is fixed to the housing, with one output shaft extending upwards and the other output shaft extending downwards. The dual-axis motor is electrically connected to the controller. The fan blades are fixed to the upper output shaft of the dual-axis motor, and the drive gear is mounted on the lower output shaft. The multiple cleaning components are arranged in a circular array around the axis of the dual-axis motor. The assembly includes a driven gear, a drive shaft, an upper ring, a lower ring, a spring, and a turntable. The drive shaft is rotatably mounted on the housing. The driven gear is fixedly mounted on the upper end of the drive shaft and meshes with the driving gear. The turntable is fixedly mounted on the lower ring. The upper and lower rings are sleeved on the drive shaft. The upper ring is positioned parallel above the lower ring. The upper ring is fixedly connected to the housing. The lower ring is slidably mounted on the drive shaft. The spring is sleeved on the drive shaft, with its lower end fixedly connected to the drive shaft and its upper end fixedly connected to the lower ring. Brush bristles are fixedly mounted on the turntable. The lower end face of the upper ring has a first protrusion, and the upper end face of the lower ring has a second protrusion that mates with the first protrusion. The first and second protrusions are in sliding frictional contact.

[0007] Preferably, a limiting ring is fixedly provided at the bottom of the drive shaft; the lower end of the spring is fixed on the limiting ring; a plurality of guide rods are fixedly provided on the lower end face of the lower ring; the limiting ring is provided with guide holes adapted to the guide rods, and the guide rods slide through the guide holes from top to bottom and extend downward.

[0008] Preferably, the cleaning assembly further includes a sleeve; the sleeve is fitted over the outside of the limiting ring, with its upper end fixedly connected to the lower ring and its lower end fixedly connected to the turntable.

[0009] Preferably, it further includes a jet assembly; the jet assembly includes an airflow hose and an air guide pipe; an air guide hole is provided on the drive shaft, the air guide hole extends through the drive shaft along the axial direction of the drive shaft; the air guide pipe is fixed on the housing, one end is inserted into the air guide hole from the upper end of the drive shaft downwards, and the other end is connected to the airflow hose, the other end of the airflow hose faces the fan blade and is fixed on the housing; the turntable is provided with an air outlet hole adapted to the air guide hole.

[0010] Preferably, it further includes a water spray assembly; the water spray assembly includes a water tank, a water pipe, and a spray nozzle; the water tank is fixed on the housing; the spray nozzle is fixed on the air guide pipe; both ends of the water pipe are connected to the water tank and the spray nozzle, respectively; a Venturi tube is fixedly installed inside the air guide hole, and the axis of the Venturi tube coincides with the axis of the air guide hole; the lower end of the spray nozzle is inserted into the Venturi tube.

[0011] Preferably, the brush bristles include multiple vertical bristles and oblique bristles; the vertical bristles are fixed vertically to the lower end surface of the turntable; the multiple oblique bristles are arranged in a circular array around the axis of the air outlet and distributed on the outside of the air outlet; the upper end of the oblique bristles is fixed on the turntable, and the lower end extends obliquely towards the axis of the air outlet.

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

[0013] Highly efficient cleaning: Combining blowing, brushing, and water spraying, it significantly improves cleaning results, especially for stubborn stains.

[0014] Dynamically adjustable cleaning power: The combination of raised structure and spring allows the bristle pressure to change periodically, which can enhance the cleaning ability while avoiding excessive wear on the glass.

[0015] Energy-saving and environmentally friendly: The water spraying and purging are achieved by using an electric motor-driven airflow, reducing additional energy consumption.

[0016] Stable structure: The guide rod and limit ring design ensures smooth movement of the lower ring, avoids rotational deviation, and improves reliability.

[0017] High degree of automation: It integrates adsorption, walking and cleaning functions, reduces manual intervention, and is suitable for automated cleaning of curtain walls of high-rise buildings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a diagram of the internal structure of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 for Figure 3 A magnified view of a section at point B.

[0022] in:

[0023] 1. Housing; 2. Electric glass suction cup; 3. Robotic arm; 4. Controller; 5. Battery; 6. Cleaning unit; 61. Fan blade; 62. Dual-axis motor; 63. Drive gear; 64. Driven gear; 65. Water tank; 66. Turntable; 67. Spring; 68. First protrusion; 69. Nozzle; 70. Water pipe; 71. Air duct; 72. Venturi tube; 73. Drive shaft; 74. Upper ring; 75. Lower ring; 76. Sleeve; 77. Guide rod; 78. Limiting ring; 79. Angled bristles; 80. Vertical bristles. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4As shown, a curtain wall glass cleaning robot includes a housing 1, a battery 5, a controller 4, a robotic arm 3, and an electric glass suction cup 2. All of these components are existing structures. The battery 5, controller 4, and robotic arm 3 are mounted on the housing 1, and the electric glass suction cup 2 is mounted on the robotic arm 3. The robotic arm 3, battery 5, and electric glass suction cup 2 are electrically connected to the controller 4. The battery 5 provides power to the robot. The robot is attached to the curtain wall glass by the electric glass suction cup 2, and the robotic arm 3 acts as the robot's legs, enabling it to walk. The robot also includes a cleaning unit 6, which is used to clean the curtain wall glass and is the core of this application. The system includes a fan blade 61, a dual-axis motor 62, a drive gear 63, and multiple cleaning components. The dual-axis motor 62 is fixed to the housing 1, with one end of its output shaft extending upwards and the other end extending downwards. The dual-axis motor 62 is electrically connected to the controller 4. The fan blade 61 is fixed to the upper output shaft of the dual-axis motor 62, and the drive gear 63 is mounted on the lower output shaft. After the dual-axis motor 62 starts, it drives the fan blade 61 to rotate, and the airflow generated by the fan blade 61 blows towards the curtain wall glass, blowing away the dust on the curtain wall glass. Multiple cleaning components are arranged in a circular array around the axis of the dual-axis motor 62. The cleaning components include a driven gear 64 and a drive shaft 73. The drive shaft 73 is rotatably mounted on the housing 1. The driven gear 64 is fixedly mounted on the upper end of the drive shaft 73 and meshes with the driving gear 63. After the dual-shaft motor 62 starts, it drives the driving gear 63 to rotate. Through the meshing of the driving gear 63 and the driven gear 64, the drive shaft 73 rotates. The turntable 66 is fixedly mounted on the lower ring 75. The upper ring 74 and lower ring 75 are sleeved on the drive shaft 73. The upper ring 74 is parallel to the lower ring 75 above it. The upper ring 74 is fixedly connected to the housing 1. The lower ring 75 is slidably mounted on the drive shaft 73. Specifically, the lower ring 75... The diameter of the central hole is larger than the outer diameter of the drive shaft 73, allowing the lower ring 75 to move along the axis of the drive shaft 73. A spring 67 is sleeved on the drive shaft 73, with its lower end fixedly connected to the drive shaft 73 and its upper end fixedly connected to the lower ring 75. In its natural state, the spring 67 pushes the lower ring 75 towards the upper ring 74, causing the upper surface of the lower ring 75 to adhere to the lower surface of the upper ring 74. Simultaneously, the spring 67 causes the drive shaft 73 to rotate, driving the lower ring 75 to rotate at the same angular velocity, which in turn drives the turntable 66 connected to the lower ring 75 to rotate. The turntable 66 is fixedly equipped with bristles, which are used to rotate and clean the curtain wall glass.The lower end face of the upper ring 74 is provided with a first protrusion 68, and the upper end face of the lower ring 75 is provided with a second protrusion that cooperates with the first protrusion 68. The first protrusion 68 and the second protrusion are in sliding frictional contact. During the rotation of the drive shaft 73, the upper ring 74 remains stationary, while the lower ring 75 rotates with the drive shaft 73. When the first protrusion 68 contacts the second protrusion, the lower ring 75 moves away from the upper ring 74, causing the bristles to be pressed against the curtain wall glass, increasing the cleaning force of the bristles. When the second protrusion separates from the first protrusion 68, the spring 67 pushes the lower ring 75 back to its original position, reducing the cleaning force of the bristles. The cyclical contact and separation of the first protrusion 68 and the second protrusion cause the force of the bristles acting on the curtain wall glass to change periodically, which is beneficial for brushing away contaminants.

[0026] In this embodiment, a limiting ring 78 is fixedly provided at the bottom of the drive shaft 73; the lower end of the spring 67 is fixed to the limiting ring 78; a plurality of guide rods 77 are fixedly provided on the lower end face of the lower ring 75; the limiting ring 78 is provided with guide holes adapted to the guide rods 77, and the guide rods 77 slide through the guide holes from top to bottom and extend downward. The plurality of guide rods 77 are arranged in a circumferential array with the axis of the drive shaft 73 as the center; the arrangement of the guide rods 77 ensures that the lower ring 75 can only move along the direction of the drive shaft 73 and will not rotate with the axis of the drive shaft 73 as the center, thereby improving the stability of the structure operation.

[0027] In this embodiment, the cleaning component also includes a sleeve 76; the sleeve 76 is fitted around the outside of the limiting ring 78, with its upper end fixedly connected to the lower ring 75 and its lower end fixedly connected to the turntable 66.

[0028] In this embodiment, a jet assembly is also included; the jet assembly includes an airflow hose and an air guide pipe 71; an air guide hole is provided on the drive shaft 73, which passes through the drive shaft 73 along its axial direction; the air guide pipe 71 is fixed to the housing 1, with one end inserted downward from the upper end of the drive shaft 73 into the air guide hole, and the other end connected to the airflow hose, the other end of which faces the fan blade 61 and is fixed to the housing 1; an air outlet is provided on the turntable 66 that matches the air guide hole. When the dual-axis motor 62 starts, it drives the fan blade 61 to rotate, and the airflow enters the air guide hole through the airflow hose and air guide pipe 71, and then is sprayed directly onto the curtain wall glass from the air outlet, improving the dust removal effect.

[0029] In this embodiment, a water spray assembly is also included; the water spray assembly includes a water tank 65, a water pipe 70, and a spray nozzle 69; the water tank 65 is fixed to the housing 1; the spray nozzle 69 is fixed to the air duct 71; both ends of the water pipe 70 are connected to the water tank 65 and the spray nozzle 69 respectively; a Venturi tube 72 is fixedly installed inside the air duct, and the axis of the Venturi tube 72 coincides with the axis of the air duct; the lower end of the spray nozzle 69 is inserted into the Venturi tube 72. The airflow ejected from the air duct 71 enters the Venturi tube 72. Because the inner diameter of the Venturi tube 72 increases from the center to both ends, the gas velocity increases, and the negative pressure generated inside the Venturi tube 72 draws water out of the spray nozzle 69, so that the water in the water tank 65 is continuously sprayed onto the curtain wall glass through the water pipe 70 and the spray nozzle 69, further improving the cleaning effect.

[0030] In this embodiment, the brush bristles include multiple vertical bristles 80 and oblique bristles 79. The vertical bristles 80 are vertically fixed to the lower end face of the turntable 66. The multiple oblique bristles 79 are arranged in a circumferential array around the axis of the air outlet, and are distributed on the outside of the air outlet. The upper ends of the oblique bristles 79 are fixed to the turntable 66, and the lower ends extend obliquely towards the axis of the air outlet. When the bristles are repeatedly squeezed, the oblique bristles 79 converge towards the axis of the drive shaft 73, improving the cleaning effect at the center of the drive shaft 73.

[0031] Working principle

[0032] This patent provides a curtain wall glass cleaning robot, the working principle of which is as follows:

[0033] Adsorption and movement: The robot is attached to the curtain wall glass by electric glass suction cup 2, and the robotic arm 3 drives the robot to move.

[0034] Dust removal: The dual-axis motor 62 drives the fan blades 61 to rotate, generating airflow that blows onto the glass surface, initially removing dust.

[0035] Rotary scrubbing:

[0036] The dual-axis motor 62 drives the driven gears 64 of multiple cleaning components to rotate via the drive gear 63, thereby causing the transmission shaft 73 to rotate.

[0037] The drive shaft 73 drives the lower ring 75 to rotate, which in turn causes the bristles on the turntable 66 to rotate and brush the glass.

[0038] A raised structure is provided between the upper ring 74 and the lower ring 75. When the raised structure contacts, the lower ring 75 is pressed down, and the bristles adhere tightly to the glass to enhance the cleaning power. When the raised structure separates, the spring 67 returns to its original position, the bristle pressure decreases, and a periodically changing cleaning force is formed to improve the stain removal effect.

[0039] Jet enhancement: The airflow generated by the fan blade 61 is ejected from the air outlet of the turntable 66 through the air guide pipe 71 and the air guide hole, directly impacting the glass surface and enhancing the dust removal effect.

[0040] Automatic water spray: Utilizing the Venturi effect, a high-speed airflow creates negative pressure inside the Venturi tube 72, drawing water from the water tank 65 and spraying it onto the glass, achieving wet cleaning in conjunction with the brush bristles.

Claims

1. A curtain wall glass cleaning robot, comprising a shell (1), a battery (5), a controller (4), a mechanical arm (3) and an electric glass suction cup (2), the battery (5), the controller (4) and the mechanical arm (3) are installed on the shell (1), the electric glass suction cup (2) is installed on the mechanical arm (3), the mechanical arm (3), the battery (5) and the electric glass suction cup (2) are electrically connected with the controller (4), characterized in that, Further comprising a cleaning unit (6); the cleaning unit (6) comprises a fan blade (61), a double-shaft motor (62), a driving gear (63) and a plurality of cleaning assemblies; the double-shaft motor (62) is fixed on the shell (1), wherein the output shaft at one end extends upward, and the output shaft at the other end extends downward; the double-shaft motor (62) is electrically connected with the controller (4); the fan blade (61) is fixed on the output shaft at the upper end of the double-shaft motor (62), and the driving gear (63) is installed on the output shaft at the lower end; the plurality of cleaning assemblies are distributed in a circumferential array with the axis of the double-shaft motor (62) as the center; the cleaning assembly comprises a driven gear (64), a transmission shaft (73), an upper circular ring (74), a lower circular ring (75), a spring (67) and a rotating disc (66); the transmission shaft (73) is rotatably arranged on the shell (1); the driven gear (64) is fixedly installed on the upper end of the transmission shaft (73) and is in meshing transmission with the driving gear (63); the rotating disc (66) is fixedly installed on the lower circular ring (75); the upper circular ring (74) and the lower circular ring (75) are sleeved on the transmission shaft (73); the upper circular ring (74) is arranged in parallel above the lower circular ring (75); the upper circular ring (74) is fixedly connected with the shell (1); the lower circular ring (75) is slidably installed on the transmission shaft (73); the spring (67) is sleeved on the transmission shaft (73), the lower end is fixedly connected with the transmission shaft (73), and the upper end is fixedly connected with the lower circular ring (75); a plurality of bristles are fixedly arranged on the rotating disc (66); a first protrusion (68) is arranged on the lower end surface of the upper circular ring (74), and a second protrusion matched with the first protrusion (68) is arranged on the upper end surface of the lower circular ring (75), and the first protrusion (68) and the second protrusion are in sliding frictional contact.

2. The curtain wall glass cleaning robot of claim 1, wherein, A limiting ring (78) is fixedly arranged at the bottom of the transmission shaft (73); the lower end of the spring (67) is fixed on the limiting ring (78); a plurality of guide rods (77) are fixedly arranged on the lower end surface of the lower circular ring (75); the limiting ring (78) is provided with guide holes matched with the guide rods (77), and the guide rods (77) slidably penetrate the guide holes from top to bottom and extend downward.

3. The curtain wall glass cleaning robot of claim 2, wherein, The cleaning assembly further comprises a sleeve (76); the sleeve (76) is sleeved on the outside of the limiting ring (78), the upper end is fixedly connected with the lower circular ring (75), and the lower end is fixedly connected with the rotating disc (66).

4. The curtain wall glass cleaning robot of claim 1, wherein, Further comprising a jetting assembly; the jetting assembly comprises an air flow hose and a gas guide pipe (71); a gas guide through hole is arranged on the transmission shaft (73), the gas guide through hole penetrates the transmission shaft (73) along the axis direction of the transmission shaft (73); the gas guide pipe (71) is fixed on the shell (1), one end is inserted into the gas guide through hole from the upper end of the transmission shaft (73) downward, the other end is connected with the air flow hose, and the other end of the air flow hose faces the fan blade (61) and is fixed on the shell (1); the rotating disc (66) is provided with an air outlet hole matched with the gas guide through hole.

5. The curtain wall glass cleaning robot of claim 4, wherein, The water spraying assembly comprises a water tank (65), a water pipe (70) and a spraying pipe (69); the water tank (65) is fixed on the shell (1); the spraying pipe (69) is fixed on the air guide pipe (71); the two ends of the water pipe (70) are connected with the water tank (65) and the spraying pipe (69) respectively; a Venturi tube (72) is fixed in the air guide through hole, and the axis of the Venturi tube (72) coincides with the axis of the air guide through hole; the lower end of the spraying pipe (69) is inserted into the Venturi tube (72).

6. The curtain wall glass cleaning robot of claim 4, wherein, The brush hairs comprise vertical brush hairs (80) and oblique brush hairs (79); the vertical brush hairs (80) are vertically fixed on the lower end surface of the rotating disc (66); a plurality of oblique brush hairs (79) are distributed in a circular array outside the air outlet hole with the axis of the air outlet hole as the center; the upper end of the oblique brush hair (79) is fixed on the rotating disc (66), and the lower end extends obliquely to the axis direction of the air outlet hole.