Adjustable photovoltaic panel surface cleaning unmanned aerial vehicle

By designing an adjustable surface cleaning drone for photovoltaic panels, a structure combining a telescopic and a fixed-length telescopic rod with an eccentric wheel and a reaction spring is created. This structure, along with the eccentric wheel and reaction spring, and the gyroscope and encoder, enables automatic adjustment of the scraper blades. This solves the problem in existing technologies where drones struggle to maintain an angle with the photovoltaic panels, simplifying operation and improving cleaning efficiency.

CN224466121UActive Publication Date: 2026-07-07SHANDONG DADI NEW ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DADI NEW ENERGY TECH CO LTD
Filing Date
2025-06-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing drones have difficulty maintaining the same tilt angle as the photovoltaic panels when cleaning them, which requires high operational skills and results in poor cleaning performance.

Method used

An adjustable photovoltaic panel surface cleaning drone was designed, which adopts a structure combining telescopic and fixed-length sleeves with eccentric wheels and reaction springs. The automatic adjustment of the scraper is achieved through gyroscopes and encoders to ensure that the scraper is in close contact with the photovoltaic panel, and the tilt of the two scrapers is controlled synchronously by transmission rods.

Benefits of technology

This technology enables drones to maintain a horizontal posture while cleaning photovoltaic panels at different tilt angles, simplifying operation and ensuring the squeegee effectively adheres to the panels for efficient cleaning.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224466121U_ABST
    Figure CN224466121U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of adjustable photovoltaic panel surface cleaning unmanned plane, the bottom end fixed connection equipment box of unmanned aerial vehicle body, telescopic sleeve rod and fixed sleeve rod are stretched out from the bottom end of equipment box, the other end of telescopic sleeve rod and fixed sleeve rod are all hinged and connected on scraping strip;Telescopic sleeve rod and fixed sleeve rod all include arm lever and outer sleeve, outer sleeve is connected in the lower end of arm lever;The arm lever upper end of fixed sleeve rod is fixedly connected in equipment box;The arm lever upper end of telescopic sleeve rod is hinged and connected on the eccentric column of eccentric wheel, the wheel shaft of eccentric wheel is connected rotating mechanism;When eccentric column is at the highest point of eccentric wheel, the total length of telescopic sleeve rod and fixed sleeve rod is equal.The utility model realizes that scraping strip can be arbitrarily angle inclined by telescopic sleeve rod and fixed sleeve rod, to fit photovoltaic panel of different inclination, and keep unmanned aerial vehicle body in horizontal posture during cleaning process, so that operator is better operated.
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Description

Technical Field

[0001] This utility model relates to the field of drones, and in particular to an adjustable photovoltaic panel surface cleaning drone. Background Technology

[0002] To better receive sunlight, photovoltaic panels are typically installed at an angle, but these angles vary. When using drones to clean the surface of photovoltaic panels, the drone needs to maintain the same angle of tilt as the panel. This requires the drone to fly at an angle, which demands high operational skill and is often difficult to achieve. Therefore, there is a need for a cleaning drone device that is easy to operate and can achieve good cleaning results. Utility Model Content

[0003] The purpose of this application is to provide an adjustable photovoltaic panel surface cleaning drone, which aims to solve the problems existing in the prior art.

[0004] This application provides an adjustable photovoltaic panel surface cleaning drone. The drone body is fixedly connected to an equipment box at its bottom. A telescopic sleeve and a fixed-length sleeve extend from the bottom of the equipment box, and the other ends of both are hinged to a scraper. Both the telescopic sleeve and the fixed-length sleeve include an arm and an outer sleeve, with the outer sleeve connected to the lower end of the arm. The upper end of the fixed-length sleeve arm is fixedly connected inside the equipment box. The upper end of the telescopic sleeve arm is hinged to the eccentric column of an eccentric wheel, and the axle of the eccentric wheel is connected to a rotating mechanism. When the eccentric column is at the highest point of the eccentric wheel, the total length of the telescopic sleeve and the fixed-length sleeve are equal.

[0005] The lower end of the boom is fixedly connected to an inner rod, and the upper end of the outer sleeve is provided with a receiving cavity. The inner rod is slidably set in the receiving cavity, and a reaction spring is sleeved on the outside of the inner rod. The reaction spring acts between the bottom of the inner rod and the top of the receiving cavity.

[0006] The lower end of the outer sleeve is connected to the scraper strip via a hinge.

[0007] There are two scraper blades, which are distributed one in front of the other in the direction of the drone's movement.

[0008] The telescopic sleeves of the two scraper blades are on the same side; a transmission rod connects the eccentric wheel axle of the two scraper blades.

[0009] A gyroscope is installed inside the drone body, and an encoder is installed on the rotating mechanism. The signals of the gyroscope and encoder are connected to the control board of the drone body.

[0010] The beneficial effects of this utility model are: this utility model enables the scraper to tilt at any angle through the telescopic sleeve and the fixed-length sleeve to fit photovoltaic panels with different inclinations, and keeps the drone body in a horizontal position during the cleaning process, making it easier for the operator to operate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the reverse side of the present invention.

[0013] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 4 This is an enlarged structural schematic diagram of a fixed-length sleeve.

[0015] Figure 5 This is an enlarged structural schematic diagram of the telescopic sleeve.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of the scraper under inclined conditions.

[0017] In the picture:

[0018] 1. UAV body; 2. Equipment box; 3. Telescopic sleeve; 4. Fixed length sleeve; 5. Scraper; 6. Arm; 7. Outer sleeve; 8. Eccentric wheel; 9. Eccentric column; 10. Wheel axle; 11. Inner rod; 12. Reaction spring; 13. Hinge. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 and Figure 2 The present invention is an adjustable photovoltaic panel surface cleaning drone. The bottom end of the drone body 1 is fixedly connected to the equipment box 2. A telescopic sleeve 3 and a fixed-length sleeve 4 extend from the bottom end of the equipment box 2. The other ends of the telescopic sleeve 3 and the fixed-length sleeve 4 are hinged to the scraper 5.

[0021] Specifically, such as Figures 3-5As shown, both the telescopic sleeve 3 and the fixed-length sleeve 4 include an arm 6 and an outer sleeve 7. The outer sleeve 7 is connected to the lower end of the arm 6, and the two are arranged in a straight line. The upper end of the arm 6 of the fixed-length sleeve 4 is fixedly connected inside the equipment box 2. The upper end of the arm 6 of the telescopic sleeve 3 is hinged to the eccentric column 9 of the eccentric wheel 8. The wheel axle 10 of the eccentric wheel 8 is connected to a rotating mechanism, which includes a motor to provide torque to the eccentric wheel 8. When the eccentric column 9 is at the highest point of the eccentric wheel 8, the total length of the telescopic sleeve 3 and the fixed-length sleeve 4 is equal. Figure 3 The image shows the initial state at this point.

[0022] like Figure 4 and Figure 5 As shown, an inner rod 11 is fixedly connected to the lower end of the arm 6, and a receiving cavity is provided at the upper end of the outer sleeve 7. The inner rod 11 is slidably disposed in the receiving cavity, and a reaction spring 12 is sleeved on the outer side of the inner rod 11. The reaction spring 12 acts between the bottom of the inner rod 11 and the top of the receiving cavity. When the scraper 5 contacts the surface of the photovoltaic panel, the drone body 1 generates a certain pressure, which compresses the reaction spring 12. The elastic force of the reaction spring 12 is transmitted to the scraper 5, making the scraper 5 stick tightly to the photovoltaic panel. Even if the flight altitude of the drone body 1 is unstable, within a certain range, the reaction spring 12 will keep the scraper 5 sticking to the photovoltaic panel, ensuring the scraping effect.

[0023] The lower end of the outer sleeve 7 is connected to the scraper 5 via the hinge 13, such as... Figure 3 As shown, when the telescopic sleeve 3 extends, the scraper 5 can rotate around the center of the hinge 13 of the fixed-length sleeve 4 to fit the photovoltaic panels at different angles. The scraper 5, when tilted, is as follows: Figure 6 As shown.

[0024] Normally, there is one scraper 5. In this embodiment, preferably, there are two scraper 5s, which are distributed front and back in the direction of the drone's movement, which can increase the cleaning effect and make the drone body 1 more stable during movement.

[0025] The telescopic sleeves 3 of the two scraper blades 5 are on the same side, and a transmission rod is connected between the eccentric wheels 8 and the axle 10 of the two scraper blades 5. Through the transmission rod, a rotating mechanism can drive the two eccentric wheels 8 to rotate synchronously, thereby causing the two scraper blades 5 to change their inclination synchronously.

[0026] In this preferred embodiment, a gyroscope is installed inside the drone body 1, and an encoder is installed on the rotating mechanism. The encoder detects the motor torque and generates a digital signal, which is sent to the control board to control the motor torque. The gyroscope and encoder signals are connected to the control board of the drone body 1. When the drone body 1 lands on the photovoltaic panel surface for the first time, it is tilted at the same angle as the photovoltaic panel, and the gyroscope records this tilt. Subsequently, the drone body 1 takes off, and the control board sends a control signal to the motor based on the data recorded by the gyroscope. The motor causes the eccentric wheel 8 to rotate, reducing the height of the eccentric column 9. With the reaction spring 12 in its natural state, keeping the total length of the telescopic sleeve 3 unchanged, the telescopic sleeve 3 extends downwards, causing the scraper 5 to tilt. At this time, the tilt of the scraper 5 is the same as the tilt of the photovoltaic panel. Then, the drone body 1 lands a second time. This time, the scraper 5 is in contact with the photovoltaic panel, and the drone body 1 remains horizontal. The forward and backward flight of the drone body 1 can cause the scraper 5 to scrape against the photovoltaic panel.

[0027] During the second landing, the descent altitude of the UAV body 1 is mainly due to the pressure exerted by the UAV body 1 on the photovoltaic panel, that is, to ensure that the reaction springs 12 in both the fixed-length sleeve 4 and the telescopic sleeve 3 are compressed, thereby ensuring that the scraper 5 is in close contact with the photovoltaic panel under the action of the reaction springs 12.

[0028] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

Claims

1. An adjustable photovoltaic panel surface cleaning drone, characterized in that, The bottom of the UAV body is fixedly connected to an equipment box. A telescopic sleeve and a fixed-length sleeve extend from the bottom of the equipment box, and the other ends of the telescopic sleeve and the fixed-length sleeve are hinged to a scraper. The telescopic sleeve and the fixed-length sleeve each include an arm and an outer sleeve, with the outer sleeve connected to the lower end of the arm. The upper end of the arm of the fixed-length sleeve is fixedly connected inside the equipment box. The upper end of the arm of the telescopic sleeve is hinged to the eccentric column of an eccentric wheel, and the axle of the eccentric wheel is connected to a rotating mechanism. When the eccentric column is at the highest point of the eccentric wheel, the total length of the telescopic sleeve and the fixed-length sleeve are equal.

2. The adjustable photovoltaic panel surface cleaning drone according to claim 1, characterized in that, The lower end of the arm is fixedly connected to an inner rod, and the upper end of the outer sleeve is provided with a receiving cavity. The inner rod is slidably disposed in the receiving cavity, and a reaction spring is sleeved on the outside of the inner rod. The reaction spring acts between the bottom of the inner rod and the top of the receiving cavity.

3. The adjustable photovoltaic panel surface cleaning drone according to claim 2, characterized in that, The lower end of the outer sleeve is connected to the scraper strip via a hinge.

4. The adjustable photovoltaic panel surface cleaning drone according to claim 1, characterized in that, There are two scraper blades, which are distributed front and back in the direction of the drone's travel.

5. The adjustable photovoltaic panel surface cleaning drone according to claim 4, characterized in that, The telescopic sleeves of the two scraper blades are on the same side; a transmission rod connects the eccentric wheel axle of the two scraper blades.

6. The adjustable photovoltaic panel surface cleaning drone according to claim 1, characterized in that, A gyroscope is installed inside the drone body, and an encoder is installed on the rotating mechanism. The signals of the gyroscope and the encoder are connected to the control board of the drone body.