Unmanned aerial vehicle high-altitude curtain wall cleaning device

By equipping drones with roller cleaning and water spraying systems, the problems of low efficiency and high safety risks of existing high-altitude curtain wall cleaning equipment have been solved, achieving efficient, safe, and low-cost glass curtain wall cleaning.

CN224251312UActive Publication Date: 2026-05-19SICHUAN QIFENG CLEAR SCREEN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN QIFENG CLEAR SCREEN TECHNOLOGY CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing high-altitude curtain wall cleaning equipment suffers from low efficiency, high safety risks, high costs, and difficulty in adapting to the cleaning needs of irregularly shaped glass. Furthermore, existing robotic cleaning equipment is prone to damaging the glass.

Method used

The roller filter cleaning system, which utilizes a drone equipped with a roller filter, includes a roller cleaning system, a water spray system, and a drone system. It leverages the flexibility and stability of drones to carry roller cleaning and water spray mechanisms, achieving efficient cleaning.

Benefits of technology

It enables large-area, rapid, and efficient cleaning of high-altitude glass curtain walls, reduces labor costs, improves safety and operational efficiency, and is adaptable to various forms of glass curtain wall cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an unmanned aerial vehicle high-altitude curtain wall cleaning device which comprises a roller cleaning system, a water spraying system and an unmanned aerial vehicle system, the unmanned aerial vehicle system comprises an unmanned aerial vehicle and a support, the support is arranged below the unmanned aerial vehicle, and the roller cleaning system comprises a power system, a supporting assembly and a roller cleaning assembly. The roller cleaning assembly and the power system are arranged on the supporting assembly, the power system is used for driving a roller on the roller cleaning assembly to rotate, the supporting assembly is arranged on the support through a connecting rod, the water spraying system comprises a nozzle, a Venturi tube, a cleaning agent storage box and a pressure pump, and the nozzle is arranged on the supporting assembly. The Venturi tube, the cleaning agent storage box and the pressure pump are arranged on the support. By utilizing the characteristics of simple structure, convenience in control, high flying speed, high flexibility and stable attitude of the unmanned aerial vehicle, the device carries the roller cleaning mechanism and the water spraying mechanism on the unmanned aerial vehicle, so that large-area quick and high-efficiency cleaning of the high-altitude glass curtain wall is realized.
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Description

Technical Field

[0001] This utility model relates to the field of high-altitude curtain wall cleaning technology, specifically to a drone-based high-altitude curtain wall cleaning device. Background Technology

[0002] With the proliferation of high-rise buildings in cities, many of which utilize glass curtain wall structures, the demand for cleaning high-altitude glass curtain walls is surging. Currently, the cleaning of high-altitude glass curtain walls mainly relies on "spider-men" who use ropes or suspended baskets to suspend themselves from the building surface and use simple handheld cleaning tools to clean the glass curtain walls. This method is inefficient, carries significant safety risks, and has high labor costs.

[0003] In response to this situation, many mechanized high-altitude curtain wall cleaning equipment have emerged in recent years, mainly including two types of robots: hoisting brushing robots and adsorption robots. Hoisting brushing robots require the equipment to be hoisted to the top of the building by a crane and then suspended from the roof. Furthermore, the power supply and liquid supply pipeline layout must be considered to adapt to different operating ranges. The operation process is complex, with high time and transportation costs. Additionally, the cleaning quality is difficult to guarantee due to the influence of external environmental factors. Meanwhile, adsorption robots, although able to firmly adhere to the glass and less affected by external environmental factors, rely on their own low-speed movement to clean the glass. This method is not only extremely inefficient but also unable to clean irregularly shaped glass. Moreover, adsorption robots mostly use vacuum suction cups to attach to the glass, which are easily damaged and difficult to maintain. They are also unsuitable for large-area cleaning of large high-altitude curtain walls. Utility Model Content

[0004] In view of this, the problem to be solved by this utility model is to provide a drone high-altitude curtain wall cleaning device. This device utilizes the characteristics of drones, such as simple structure, easy operation, high flight speed, high flexibility, and stable attitude, and mounts a roller cleaning mechanism and a water spraying mechanism on it to achieve large-area, rapid, and efficient cleaning of high-altitude glass curtain walls.

[0005] This utility model solves the above-mentioned technical problems through the following technical means: This utility model provides a drone high-altitude curtain wall cleaning device, including a drum cleaning system, a water spraying system, and a drone system. The drone system includes a drone and a support frame, with the support frame positioned below the drone. The drum cleaning system includes a power system, a support assembly, and a drum cleaning assembly. The drum cleaning assembly and the power system are mounted on the support assembly. The power system drives the rotation of the drum on the drum cleaning assembly. The support assembly is mounted on the support frame via a connecting rod. The water spraying system includes a nozzle, a venturi tube, a cleaning agent storage box, and a pressure pump. The nozzle is mounted on the support assembly and is connected to the cleaning agent storage box via a water pipe. The venturi tube is positioned on the water pipe between the nozzle and the cleaning agent storage box, automatically mixing the cleaning agent and water in a specific ratio via the venturi tube. The venturi tube, the cleaning agent storage box, and the pressure pump are mounted on the support frame.

[0006] Furthermore, the connecting rod includes an inner rod and a sleeve rod fitted on the inner rod. One end of the inner rod is fixedly mounted on the bracket and is parallel to the UAV, while the other end of the inner rod is suspended in the air. One end of the sleeve rod is fitted on the suspended end of the inner rod, while the other end is fixedly mounted on the support assembly. The sleeve rod has an inner hole at its center, and the inner rod is inserted into the inner hole. A spring is fitted on the inner rod and inserted into the inner hole. One end of the spring abuts against the bracket, while the other end abuts against the end face of the inner hole.

[0007] Furthermore, the drum cleaning assembly includes a nylon brush, a bearing, and a drum. The nylon brush is mounted on the drum, and the drum is rotatably mounted on the support assembly via the bearing. The power system is connected to the drum via a transmission component to drive the drum to rotate.

[0008] Furthermore, the support assembly includes a frame and a roller housing cover. The frame includes a base plate and two side plates. The two side plates are symmetrically and vertically arranged at both ends of the base plate. The roller housing cover is arranged on the base plate and is located outside the nylon brush. The nozzle is located on the roller housing cover, and the water outlet of the nozzle faces the nylon brush on the roller.

[0009] Furthermore, it also includes limiting rods, of which two limiting rods are provided and symmetrically arranged on the bracket. One end of each limiting rod is fixedly mounted on the bracket, and a roller is rotatably mounted on the other end. The roller is positioned between the two limiting rods, with the bottom of the roller higher than the position of the roller and lower than the position of the nylon brush on the roller.

[0010] Furthermore, the power system includes a brushless motor, a coupling, a pulley shaft, and a belt pulley. The brushless motor is connected to the coupling and the pulley shaft, and the pulley shaft is connected to the roller via the pulley and belt to drive the roller to rotate.

[0011] Furthermore, the drone includes a fuselage frame and rotors, motors, cameras, power supply systems, and control systems mounted on the fuselage frame, with the bracket fixedly mounted below the fuselage frame.

[0012] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This utility model provides a drone-based high-altitude curtain wall cleaning device, including a roller cleaning system, a water spraying system, and a drone system. The drone system includes a drone and a support frame, with the support frame positioned below the drone. The roller cleaning system includes a power system, a support assembly, and a roller cleaning assembly. The roller cleaning assembly and the power system are mounted on the support assembly. The power system drives the rotation of the roller on the roller cleaning assembly. The support assembly is mounted on the support frame via a connecting rod. The water spraying system includes a nozzle, a venturi tube, a cleaning agent storage box, and a pressure pump. The nozzle is mounted on the support assembly and connected to the cleaning agent storage box via a water pipe. The venturi tube is positioned on the water pipe between the nozzle and the cleaning agent storage box, mixing the cleaning agent with water. The venturi tube, cleaning agent storage box, and pressure pump are mounted on the support frame. This device utilizes the characteristics of drones—simple structure, easy operation, high flight speed, high flexibility, and stable attitude—to mount a roller cleaning mechanism and a water spraying mechanism, achieving large-area, rapid, and efficient cleaning of high-altitude glass curtain walls. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 A three-dimensional structural diagram of a drone-based high-altitude curtain wall cleaning device provided by this utility model;

[0015] Figure 2 A top view of a drone-based high-altitude curtain wall cleaning device provided for utility model purposes;

[0016] Figure 3 for Figure 2 A sectional view;

[0017] Figure label:

[0018] 1-Drum cleaning system; 2-Water spray system; 3-UAV system; 31-UAV; 32-Support; 11-Power system; 12-Support assembly; 13-Drum cleaning assembly; 14-Connecting rod; 21-Nozzle; 22-Water pipe; 23-Cleaning agent storage box; 24-Pressure pump; 141-Inner rod; 142-Sleeve rod; 143-Spring; 131-Nylon brush; 132-Drum; 121-Frame; 122-Drum outer shell cover; 321-Limiting rod; 322-Roller. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] Please see Figures 1-3 This utility model provides a drone-based high-altitude curtain wall cleaning device, including a roller cleaning system, a water spraying system, and a drone system. The drone system includes a drone and a support frame, with the support frame positioned below the drone. The roller cleaning system includes a power system, a support assembly, and a roller cleaning assembly. The roller cleaning assembly and the power system are mounted on the support assembly. The power system drives the rotation of the roller on the roller cleaning assembly. The support assembly is mounted on the support frame via a connecting rod. The water spraying system includes nozzles, a venturi tube, a cleaning agent storage box, and a pressure pump. The nozzles are mounted on the support assembly and connected to the cleaning agent storage box via a water pipe. The venturi tube is positioned on the water pipe between the nozzles and the cleaning agent storage box, automatically mixing the cleaning agent and water in a specific ratio. The venturi tube, cleaning agent storage box, and pressure pump are mounted on the support frame. The pressure pump applies pressure to the cleaning agent in the storage box, causing it to be sprayed out through the nozzles for curtain wall cleaning.

[0021] As a further improvement to the above technical solution, the connecting rod includes an inner rod and a sleeve rod fitted onto the inner rod. One end of the inner rod is fixedly mounted on the bracket and parallel to the drone, while the other end of the inner rod is suspended. One end of the sleeve rod is fitted onto the suspended end of the inner rod, and the other end is fixedly mounted on the support assembly. The sleeve rod has an inner hole at its center, into which the inner rod is inserted. A spring is fitted onto the inner rod and inserted into the inner hole, with one end of the spring abutting against the bracket and the other end abutting against the end face of the inner hole. By setting the inner rod and the sleeve rod and placing the spring between them, the drum cleaning system has a certain degree of flexibility, ensuring that the drone can carry the drum cleaning assembly during flight. Simultaneously, in cooperation with the support assembly, the drum cleaning assembly and the high-altitude curtain wall can achieve real-time tight contact during the drone's flight cleaning process, ensuring the cleaning effect.

[0022] As a further improvement to the above technical solution, the drum cleaning assembly includes a nylon brush, a bearing, and a drum. The nylon brush is mounted on the drum, and the drum is rotatably mounted on a support assembly via the bearing. The power system is connected to the drum via a transmission component to drive the drum to rotate.

[0023] As a further improvement to the above technical solution, the support assembly includes a frame and a roller shell cover. The frame includes a base plate and side plates. Two side plates are provided, which are symmetrically and vertically arranged at both ends of the base plate. The roller shell cover is arranged on the base plate and is located outside the nylon brush. The nozzle is located on the roller shell cover, and the water outlet of the nozzle faces the nylon brush on the roller.

[0024] As a further improvement to the above technical solution, a limiting rod is also included. Two limiting rods are symmetrically arranged on the bracket. One end of each limiting rod is fixed to the bracket, and a roller is rotatably mounted on the other end. The roller is positioned between the two limiting rods, with its bottom higher than the roller but lower than the nylon brush on the roller. Through the cooperating limiting rods, when the brush on the roller presses against the curtain wall, the roller on the limiting rod limits the pressure, ensuring the brush is pressed firmly against the curtain wall to guarantee cleaning effectiveness, while preventing excessive compression of the brush that could damage the curtain wall from the roller contacting it. Preferably, the roller is made of rubber to prevent damage to the curtain wall. The roller rotates as the curtain wall is moved for cleaning.

[0025] As a further improvement to the above technical solution, the power system includes a brushless motor, a coupling, a pulley shaft, and a belt pulley. The coupling in the brushless motor is connected to the pulley shaft, and the pulley shaft is connected to the roller via the pulley and belt, driving the roller to rotate. The rotation of the roller driven by the power system drives the nylon brushes to clean the curtain wall.

[0026] As a further improvement to the above technical solution, the water spray assembly also includes a cleaning agent storage box and a Venturi tube. The Venturi tube is used for the automatic mixing of cleaning agent and water in a specific ratio. The water spray assembly includes a miniature pressure pump, a Venturi tube, a fan-shaped nozzle, a water pipe, and a cleaning agent storage box. The fan-shaped nozzle is fixedly connected to the roller housing cover and is at a certain angle to the nylon brush to ensure that water can be sprayed onto the nylon brush. The miniature pressure pump provides a certain water spray pressure, and the Venturi tube enables the automatic mixing of cleaning agent and water in a specific ratio. The mixture is then transmitted to the fan-shaped nozzle through the water pipe, ensuring that the cleaning solution is sprayed onto the brush and glass at a certain pressure and angle, thus ensuring the cleaning effect.

[0027] As a further improvement to the above technical solution, the drone includes a fuselage frame and rotors, motors, cameras, a power supply system, and a control system mounted on the fuselage frame. The bracket is fixedly mounted below the fuselage frame. Mechanical support components are mounted on the bracket for easy connection to a drum cleaning system and a water spray system, etc. The rotors and motors ensure drone flight, the camera ensures the pilot maintains the distance between the drone and the curtain wall, ensuring real-time contact with the high-altitude curtain wall, and the control system is used for drone flight attitude control in different environments.

[0028] Compared with existing technologies, this device has the following significant advantages:

[0029] Highly adaptable: It can effectively clean various types of high-altitude curtain walls, such as glass curtain walls and curved glass curtain walls.

[0030] High efficiency: Only one operator is needed on the ground to control the drone cleaning system during operation, eliminating the need for manual high-altitude work, thus reducing labor intensity and increasing efficiency. Based on a 10-minute flight time per drone, it can clean 300 square meters of high-altitude curtain wall per minute. During the flight, after accounting for variable margins, it can clean up to approximately 2500 square meters of high-altitude curtain wall, demonstrating high operational efficiency.

[0031] Safety: Drone operators only need to control the drone from the ground through visual observation and remote control screen, without having to work at high altitudes, thus ensuring the safety of practitioners to the greatest extent.

[0032] Cost-effectiveness: This drone cleaning system requires only one operator on the ground to clean an entire building, greatly reducing the high cost of hiring human cleaners and significantly saving on company operating costs.

[0033] Convenient and sustainable: Using this drone cleaning system only requires charging the battery and adding cleaning agent, no other preparation is needed. Preparation before operation is quick and convenient, recharging during operation is convenient, and recovery after operation is also convenient. At the same time, the drone's built-in data recording function can display the flight trajectory to determine whether a certain area has been cleaned, which facilitates the connection between two operations.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A drone-based high-altitude curtain wall cleaning device, characterized in that: The system includes a drum cleaning system, a water spraying system, and a drone system. The drone system includes a drone and a support frame, which is positioned below the drone. The drum cleaning system includes a power system, a support assembly, and a drum cleaning assembly. The drum cleaning assembly and the power system are mounted on the support assembly. The power system drives the rotation of the drum on the drum cleaning assembly. The support assembly is mounted on the support frame via a connecting rod. The water spraying system includes nozzles, a venturi tube, a cleaning agent storage box, and a pressure pump. The nozzles are mounted on the support assembly and are connected to the cleaning agent storage box via a water pipe. The venturi tube is positioned on the water pipe between the nozzle and the cleaning agent storage box. The venturi tube, the cleaning agent storage box, and the pressure pump are mounted on the support frame.

2. The UAV high-altitude curtain wall cleaning device according to claim 1, characterized in that: The connecting rod includes an inner rod and a sleeve rod fitted on the inner rod. One end of the inner rod is fixedly mounted on the bracket and is parallel to the UAV. The other end of the inner rod is suspended in the air. One end of the sleeve rod is fitted on the suspended end of the inner rod, and the other end is fixedly mounted on the support assembly. The sleeve rod has an inner hole at its center. The inner rod is inserted into the inner hole. A spring is fitted on the inner rod and inserted into the inner hole. One end of the spring abuts against the bracket, and the other end abuts against the end face of the inner hole.

3. The UAV high-altitude curtain wall cleaning device according to claim 2, characterized in that: The drum cleaning assembly includes a nylon brush, a bearing, and a drum. The nylon brush is mounted on the drum, and the drum is rotatably mounted on a support assembly via the bearing. The power system is connected to the drum via a transmission component to drive the drum to rotate.

4. The UAV high-altitude curtain wall cleaning device according to claim 3, characterized in that: The support assembly includes a frame and a roller housing cover. The frame includes a base plate and two side plates. The two side plates are symmetrically and vertically arranged at both ends of the base plate. The roller housing cover is arranged on the base plate and is located outside the nylon brush. The nozzle is located on the roller housing cover, and the water outlet of the nozzle faces the nylon brush on the roller.

5. The UAV high-altitude curtain wall cleaning device according to claim 4, characterized in that: It also includes two limiting rods, which are symmetrically arranged on the bracket. One end of each limiting rod is fixedly mounted on the bracket, and a roller is rotatably mounted on the other end. The roller is positioned between the two limiting rods, with the bottom of the roller higher than the position of the roller and lower than the position of the nylon brush on the roller.

6. The UAV high-altitude curtain wall cleaning device according to claim 1, characterized in that: The power system includes a brushless motor, a coupling, a pulley shaft, and a belt pulley. The coupling in the brushless motor is connected to the pulley shaft, and the pulley shaft is connected to the roller via the pulley and belt to drive the roller to rotate.

7. The UAV high-altitude curtain wall cleaning device according to claim 1, characterized in that: The drone includes a fuselage frame and rotors, motors, cameras, power supply systems, and control systems mounted on the fuselage frame. The bracket is fixedly mounted below the fuselage frame.