A protective device for drones

By designing a cleaning and angle adjustment mechanism for the drone protection device, the problem of poor camera protection performance was solved, enabling the camera to self-clean and shoot from multiple angles, thus improving the accuracy and flexibility of detection.

CN224335855UActive Publication Date: 2026-06-09HAINAN ZHANFEI INFORMATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINAN ZHANFEI INFORMATION TECHNOLOGY CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing drone cameras have poor protection performance, cannot self-clean, and cannot shoot from multiple angles, affecting the accuracy of the test results.

Method used

A drone protection device was designed, comprising a cleaning mechanism and an angle adjustment mechanism. The device uses a motor to drive a rotating disk and a screw to move a brush plate to clean contaminants on the camera surface, and the screw adjusts the camera angle.

Benefits of technology

The camera features a self-cleaning function, which improves the accuracy and flexibility of detection and ensures the needs of multi-angle detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of unmanned aerial vehicles (UAVs), specifically a protective device for UAVs. It includes a UAV body, a mounting plate fixedly connected to the bottom of the UAV body, a U-shaped frame fixedly connected to the bottom of the mounting plate, a protective shell at the bottom of the mounting plate, a support frame fixedly connected to one side of the protective shell, a support frame fixedly connected to one side of the support frame, and a first motor fixedly connected to one side of the protective shell. This utility model, by setting up a cleaning mechanism, uses a second motor to drive a rotating disk to rotate and push a brush plate in reciprocating motion, which can clean oil and water stains on the camera surface, avoiding the problem of low detection efficiency and inaccurate detection due to blurred camera lenses. Simultaneously, by activating the first motor to drive a screw to rotate, the screw rotation causes the surface screw sleeve to move, thereby controlling the rotation angle of the adjustment shell to achieve multi-angle adjustment of the camera, facilitating improved detection accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicles (UAVs), specifically a protective device for UAVs. Background Technology

[0002] Drones, also known as unmanned aerial vehicles, are aircraft that do not require direct human control. They utilize advanced remote control technology, autonomous flight control systems, and sensor technology to perform various tasks in the air, and are mostly used in agriculture, rescue, and inspection fields. Currently, drones can be used to carry visual inspection devices to inspect high-strength bolts in bridge construction to prevent safety accidents caused by loosening or fatigue.

[0003] Currently, when using drones to inspect bridge structures, the cameras have poor protective performance and usually lack self-cleaning capabilities. Dust, oil, fingerprints, and other contaminants adhere to the camera surface, causing image blurring, reduced contrast, or light spots, thus affecting the accuracy of feature extraction and defect identification. Furthermore, because the cameras are fixed and cannot be adjusted, dynamic multi-angle inspection is not possible, affecting the inspection results and making it difficult to adapt to various inspection scenarios. Therefore, to address the above problems, a visual inspection device based on bolt inspection is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problems of poor protection performance and inability to take pictures from multiple angles in existing technologies, this utility model proposes a protective device for drones.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a protective device for a drone, including a drone body, an installation plate fixedly connected to the bottom of the drone body, a U-shaped frame fixedly connected to the bottom of the installation plate, a protective shell provided at the bottom of the installation plate, a support frame fixedly connected to one side of the protective shell, a support frame fixedly connected to one side of the U-shaped frame, a first motor fixedly connected to one side of the protective shell, a screw fixedly connected to the output end of the first motor, one end of the screw penetrating into the inner cavity of the protective shell and threadedly connected to a screw sleeve, a sliding rod fixedly connected to the surface of the screw sleeve, one end of the sliding rod penetrating the protective shell and fitted with an adjusting shell, a fixed shell rotatably connected to one side of the adjusting shell, a fixed shell fixedly connected to one side of the fixed shell and the U-shaped frame, a rotating frame fixedly connected to the bottom of the adjusting shell, a camera fixedly connected to the surface of the rotating frame, and a cleaning mechanism provided on the surface of the rotating frame;

[0006] The cleaning mechanism includes a cleaning housing. The surface of the cleaning housing is fixedly connected to one side of a rotating frame. A second motor is fixedly connected to the surface of the rotating frame. A rotating disk is fixedly connected to the output end of the second motor. A rotating rod is fixedly connected to the surface of the rotating disk. A push rod is rotatably connected to the surface of the rotating rod via a bearing. One end of the push rod passes through the cleaning housing and is rotatably connected to a brush plate via a rotating shaft. Connecting blocks are fixedly connected to both sides of the brush plate. A sliding sleeve is fixedly connected to the surface of the connecting blocks. A sliding sleeve is fitted onto the surface of the sliding sleeve. One end of the sliding sleeve passes through the cleaning housing and is fixedly connected to the inner wall of the cleaning housing.

[0007] Preferably, the bottom of the mounting plate is fixedly connected to two connecting plates, and the bottom of the connecting plates is fixedly connected to an arc-shaped frame. A sliding shell is fitted on the surface of the arc-shaped frame, and the sliding shell is fixedly connected to the surface of the rotating frame. The inner cavity of the sliding shell is rotatably connected to a pulley via a rotating shaft, and the surface of the pulley is in contact with the surface of the arc-shaped frame.

[0008] Preferably, a reinforcing frame is fixedly connected to the top of the cleaning housing, and the reinforcing frame is fixedly connected to the surface of the rotating frame.

[0009] Preferably, the screw is provided with a slide bar at both the top and bottom, one end of the slide bar passes through the threaded sleeve, both ends of the slide bar are fixedly connected to the inner wall of the protective shell, and the surface of the slide bar is slidably connected to the threaded sleeve.

[0010] Preferably, the surface of the second motor is covered with a protective shell, and the surface of the protective shell is fixedly connected to the rotating frame.

[0011] Preferably, the surface of the mounting plate is provided with four mounting holes, which are located at the four corners of the top of the mounting plate.

[0012] Preferably, the surface of the screw is rotatably connected to the protective shell via a bearing, and the surface of the sliding rod is slidably connected to the inner wall of the adjusting shell.

[0013] The advantages of this utility model are:

[0014] This invention features a cleaning mechanism. By activating a second motor to drive a rotating disk, the brush plate reciprocates, effectively cleaning oil and water stains from the camera surface. This avoids the problems of low detection efficiency and inaccurate detection caused by a blurry camera lens. Simultaneously, by activating a first motor to drive a screw, the screw rotates, causing the screw sleeve on the surface to move, thereby controlling the rotation angle of the adjustment shell. This achieves multi-angle adjustment of the camera, improving detection accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting plate and protective shell of this utility model;

[0018] Figure 3 This is a cross-sectional view of the protective shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model;

[0020] In the diagram: 1. Unmanned aerial vehicle (UAV) body; 2. Mounting plate; 3. U-shaped frame; 4. Protective shell; 5. Support frame; 6. First motor; 7. Screw; 8. Screw sleeve; 9. Cleaning mechanism; 901. Cleaning shell; 902. Second motor; 903. Rotating disk; 904. Rotating rod; 905. Push rod; 906. Brush plate; 907. Connecting block; 908. Sliding sleeve; 909. Sliding sleeve; 10. Sliding rod; 11. Adjusting shell; 12. Fixed shell; 13. Rotating frame; 14. Camera; 15. Connecting plate; 16. Arc frame; 17. Sliding shell; 18. Pulley; 19. Reinforcing frame; 20. Sliding rod; 21. Protective shell; 22. Mounting hole. 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. 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 scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a protective device for a drone. (Refer to...) Figures 1-4A protective device for a drone includes a drone body 1, a mounting plate 2 fixedly connected to the bottom of the drone body 1, a U-shaped frame 3 fixedly connected to the bottom of the mounting plate 2, a protective shell 4 provided at the bottom of the mounting plate 2, a support frame 5 fixedly connected to one side of the protective shell 4, a support frame 5 fixedly connected to one side of the support frame 5 and the U-shaped frame 3, a first motor 6 fixedly connected to one side of the protective shell 4, a screw 7 fixedly connected to the output end of the first motor 6, one end of the screw 7 penetrating into the inner cavity of the protective shell 4 and threadedly connected to a screw sleeve 8, a sliding rod 10 fixedly connected to the surface of the screw sleeve 8, one end of the sliding rod 10 penetrating the protective shell 4 and fitted with an adjusting shell 11, a fixed shell 12 rotatably connected to one side of the adjusting shell 11, a fixed shell 12 fixedly connected to one side of the fixed shell 12 and the U-shaped frame 3, a rotating frame 13 fixedly connected to the bottom of the adjusting shell 11, a camera 14 fixedly connected to the surface of the rotating frame 13, and a cleaning mechanism 9 provided on the surface of the rotating frame 13.

[0024] The cleaning mechanism 9 includes a cleaning housing 901. The surface of the cleaning housing 901 is fixedly connected to one side of a rotating frame 13. A second motor 902 is fixedly connected to the surface of the rotating frame 13. A rotating disk 903 is fixedly connected to the output end of the second motor 902. A rotating rod 904 is fixedly connected to the surface of the rotating disk 903. A push rod 905 is rotatably connected to the surface of the rotating rod 904 via a bearing. One end of the push rod 905 passes through the cleaning housing 901 and is rotatably connected to a brush plate 906 via a rotating shaft. Connecting blocks 907 are fixedly connected to both sides of the brush plate 906. A sliding sleeve rod 908 is fixedly connected to the surface of the connecting block 907. A sleeve is fitted on the surface of the sliding sleeve rod 908. The sliding sleeve 909 has one end that passes through the cleaning housing 901 and is fixedly connected to the inner wall of the cleaning housing 901. By setting up the cleaning mechanism 9, the second motor 902 is turned on to drive the rotating disk 903 to rotate and push the brush plate 906 to reciprocate, which can clean the oil and water stains on the surface of the camera 14, avoiding the problem of low detection efficiency and inaccurate detection caused by the blurry lens of the camera 14. At the same time, the first motor 6 can be turned on to drive the screw 7 to rotate. The rotation of the screw 7 drives the screw sleeve 8 on the surface to move, thereby controlling the rotation angle of the adjusting housing 11. This achieves the purpose of multi-angle adjustment of the camera 14, which facilitates the improvement of detection accuracy.

[0025] Reference Figure 1 and Figure 2The bottom of the mounting plate 2 is fixedly connected to two connecting plates 15, and the bottom of the connecting plates 15 is fixedly connected to an arc-shaped frame 16. A sliding shell 17 is fitted on the surface of the arc-shaped frame 16. The sliding shell 17 is fixedly connected to the surface of the rotating frame 13. The inner cavity of the sliding shell 17 is rotatably connected to a pulley 18 through a rotating shaft. The surface of the pulley 18 contacts the surface of the arc-shaped frame 16. By setting the arc-shaped frame 16, the adjustment range of the sliding shell 17 can be limited. By setting the arc-shaped frame 16 and the sliding shell 17, the stability of the adjustment of the rotating frame 13 and the camera 14 can be improved. By setting the pulley 18, the adjustment of the sliding shell 17 can be facilitated. By setting the connecting plates 15, the arc-shaped frame 16 can be fixed.

[0026] Reference Figure 1 and Figure 2 A reinforcing frame 19 is fixedly connected to the top of the cleaning housing 901. The reinforcing frame 19 is fixedly connected to the surface of the rotating frame 13. By setting the reinforcing frame 19, the stability of the connection between the cleaning housing 901 and the rotating frame 13 can be improved, making the cleaning housing 901 more stable.

[0027] Reference Figure 3 The top and bottom of the screw 7 are provided with slide rods 20. One end of the slide rod 20 passes through the screw sleeve 8. Both ends of the slide rod 20 are fixedly connected to the inner wall of the protective shell 4. The surface of the slide rod 20 is slidably connected to the screw sleeve 8. By setting the slide rod 20, the movement range of the screw sleeve 8 can be limited, and the stability of the screw sleeve 8 when it moves can be improved.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The surface of the second motor 902 is covered with a protective shell 21, and the surface of the protective shell 21 is fixedly connected to the rotating frame 13. By setting the protective shell 21, the second motor 902 can be protected and prevented from being damaged.

[0029] Reference Figure 1 and Figure 2 The surface of the mounting plate 2 is provided with four mounting holes 22, which are located at the four corners of the top of the mounting plate 2. By providing mounting holes 22, it is easy to connect the mounting plate 2 to the unmanned aerial vehicle 1.

[0030] Reference Figure 2 and Figure 3 The surface of the screw 7 is rotatably connected to the protective shell 4 via a bearing, and the surface of the sliding rod 10 is slidably connected to the inner wall of the adjusting shell 11. By setting the bearing, the installation of the screw 7 can be facilitated and the rotational stability of the screw 7 can be improved. By setting the sliding rod 10, it will slide in the inner cavity of the adjusting shell 11 during the movement, thereby adjusting the adjusting shell 11.

[0031] Working principle: The user turns on the first motor 6, which drives the screw 7 to rotate. The screw 7 drives the screw sleeve 8 to move for adjustment. The screw sleeve 8 drives the sliding rod 10 to move. The sliding rod 10 slides in the inner cavity of the adjustment shell 11, which causes the adjustment shell 11 to rotate left and right. The adjustment shell 11 drives the rotating frame 13 and the camera 14 to rotate for adjustment. The shooting range of the camera 14 can be adjusted from multiple angles to achieve the purpose of multi-angle shooting. When it is necessary to clean the lens of the camera 14, the second motor 902 can be turned on. The second motor 902 drives the rotating disk 903 to rotate. The rotating disk 903 drives the rotating rod 904 to rotate. The rotating rod 904 drives one end of the push rod 905 to rotate. The other end of the push rod 905 drives the brush plate 906 to move up and down. The movement of the brush plate 906 cleans the lens of the camera 14, avoiding the problem of low detection efficiency and inaccurate detection caused by the blurry lens of the camera 14, and improving the accuracy of drone detection.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A protective device for a drone, comprising the drone body (1), characterized in that: A mounting plate (2) is fixedly connected to the bottom of the unmanned aerial vehicle (1). A U-shaped frame (3) is fixedly connected to the bottom of the mounting plate (2). A protective shell (4) is provided at the bottom of the mounting plate (2). A support frame (5) is fixedly connected to one side of the protective shell (4). One side of the support frame (5) is fixedly connected to the U-shaped frame (3). A first motor (6) is fixedly connected to one side of the protective shell (4). A screw (7) is fixedly connected to the output end of the first motor (6). One end of the screw (7) penetrates into the inner cavity of the protective shell (4) and is screwed in. A threaded connection is provided with a threaded sleeve (8), and a sliding rod (10) is fixedly connected to the surface of the threaded sleeve (8). One end of the sliding rod (10) passes through the protective shell (4) and is fitted with an adjusting shell (11). A fixed shell (12) is rotatably connected to one side of the adjusting shell (11). One side of the fixed shell (12) is fixedly connected to the U-shaped frame (3). A rotating frame (13) is fixedly connected to the bottom of the adjusting shell (11). A camera (14) is fixedly connected to the surface of the rotating frame (13). A cleaning mechanism (9) is provided on the surface of the rotating frame (13). The cleaning mechanism (9) includes a cleaning housing (901). The surface of the cleaning housing (901) is fixedly connected to one side of a rotating frame (13). A second motor (902) is fixedly connected to the surface of the rotating frame (13). A rotating disk (903) is fixedly connected to the output end of the second motor (902). A rotating rod (904) is fixedly connected to the surface of the rotating disk (903). A push rod (905) is rotatably connected to the surface of the rotating rod (904) via a bearing. One end of the push rod (905) passes through the cleaning housing (901) and is rotatably connected to a brush plate (906) via a rotating shaft. Connecting blocks (907) are fixedly connected to both sides of the brush plate (906). A sliding sleeve rod (908) is fixedly connected to the surface of the connecting block (907). A sliding sleeve (909) is sleeved on the surface of the sliding sleeve rod (908). One end of the sliding sleeve rod (909) passes through the cleaning housing (901) and is fixedly connected to the inner wall of the cleaning housing (901).

2. The protective device for a drone according to claim 1, characterized in that: The bottom of the mounting plate (2) is fixedly connected to two connecting plates (15), and the bottom of the connecting plate (15) is fixedly connected to an arc-shaped frame (16). The surface of the arc-shaped frame (16) is fitted with a sliding shell (17). The sliding shell (17) is fixedly connected to the surface of the rotating frame (13). The inner cavity of the sliding shell (17) is rotatably connected to a pulley (18) through a rotating shaft. The surface of the pulley (18) is in contact with the surface of the arc-shaped frame (16).

3. The protective device for a drone according to claim 1, characterized in that: A reinforcing frame (19) is fixedly connected to the top of the cleaning housing (901), and the reinforcing frame (19) is fixedly connected to the surface of the rotating frame (13).

4. The protective device for a drone according to claim 1, characterized in that: The top and bottom of the screw (7) are provided with slide rods (20), one end of the slide rod (20) passes through the screw sleeve (8), both ends of the slide rod (20) are fixedly connected to the inner wall of the protective shell (4), and the surface of the slide rod (20) is slidably connected to the screw sleeve (8).

5. A protective device for a drone according to claim 1, characterized in that: The surface of the second motor (902) is covered with a protective shell (21), and the surface of the protective shell (21) is fixedly connected to the rotating frame (13).

6. The protective device for a drone according to claim 1, characterized in that: The surface of the mounting plate (2) is provided with mounting holes (22), and there are four mounting holes (22), which are located at the four corners of the top of the mounting plate (2).

7. A protective device for a drone according to claim 1, characterized in that: The surface of the screw (7) is rotatably connected to the protective shell (4) via a bearing, and the surface of the sliding rod (10) is slidably connected to the inner wall of the adjusting shell (11).