Unmanned aerial vehicle undercarriage damping device

Abstract

The damping device comprises a fixing frame, a supporting structure and a rotating plate, the supporting structure comprises a supporting pipe and a supporting rod, the upper end of the supporting rod penetrates through the lower wall of the fixing frame to be connected with a connecting plate, and the upper portion of the connecting plate is connected with the inner upper wall of the fixing frame through a damping shock absorber. Limiting sliding holes matched with the supporting rods are formed in the lower wall of the fixing frame, the upper ends of the supporting rods are sleeved with first springs, the upper ends and the lower ends of the first springs are connected with the connecting plate and the fixing frame respectively, the lower ends of the supporting rods are inserted into the supporting pipes, and the ends of the supporting rods are fixedly connected with the supporting pipes through damping blocks. A plurality of second springs are connected to the upper edge of the rotating plate, the upper ends of the second springs are connected with the side wall of the supporting pipe, and a shock pad is connected to the lower portion of the rotating plate. The damping device has the advantages that the damping device can automatically adapt to the landing angle of the unmanned aerial vehicle for damping, multi-stage damping is achieved, and the damping effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and in particular to a shock absorbing device for a landing gear of an unmanned aerial vehicle. Background Art

[0002] Drones are also known as unmanned aerial vehicles. They can fly autonomously through remote control or pre-set programs. They can carry various payloads and equipment, such as cameras, sensors, infrared scanners, cargo, etc., to perform different tasks, including aerial photography, scientific research, agricultural spraying, environmental monitoring, rescue and military reconnaissance.

[0003] In order to reduce the impact and vibration on the fuselage and load during takeoff, landing and flight, shock-absorbing pads are usually added to the bottom of the UAV landing gear for shock absorption. However, the shock absorption effect of a single shock-absorbing pad is limited, and it can only absorb shock under the UAV. When the UAV lands non-horizontally, the shock absorption effect of the shock-absorbing pad is not ideal. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model proposes a UAV landing gear shock absorbing device which can automatically adapt to the landing angle of the UAV to reduce shock, has multiple levels of shock absorption and has good shock absorption effect.

[0005] The camming mechanism is a kind of mechanism that can be used to control the movement of the support frame, and the camming mechanism has the advantages of being easily movable, and the like. The camming mechanism is easily movable, and the camming mechanism can be easily moved.

[0006] Furthermore, a protective pad is connected above the fixing frame.

[0007] Furthermore, the lower end of the support rod and the upper end of the support tube are arranged obliquely.

[0008] Furthermore, the second spring is evenly arranged above the rotating plate.

[0009] Furthermore, the vertical cross-section of the rotating plate is trapezoidal.

[0010] Furthermore, the shock absorbing block, shock absorbing pad and protective pad are made of rubber material.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] It can automatically adapt to the landing angle of the drone for shock absorption: the rotating plate can rotate relative to the support tube. When the drone lands non-horizontally, the rotating plate will automatically rotate to a suitable angle after contacting the ground, so that it can fully contact the ground to ensure that the shock-absorbing pad can fully absorb shock. At the same time, the spring can not only play a shock-absorbing role when the edge of the rotating plate is subjected to force, but also quickly reset it to assist the drone in stable parking.

[0013] Multi-level shock absorption, good shock absorption effect: shock absorption blocks, shock absorption pads, protective pads, spring one, spring two and damping shock absorbers can respectively perform shock absorption at different heights, and the inclined settings of the support rods and support tubes enable the device to withstand impact forces at different angles, with good shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model.

[0016] As shown in the figure: 1. Fixed frame; 2. Turntable; 3. Support tube; 4. Support rod; 5. Connecting plate; 6. Damping shock absorber; 7. Spring 1; 8. Shock absorber block; 9. Spring 2; 10. Shock absorber pad; 11. Protective pad. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Combined with Figure 1 , Attachment Figure 2 A shock absorbing device for a drone landing gear includes a fixing frame 1, a supporting structure and a rotating plate 2. The fixing frame 1 is a hollow frame, and a protective pad 11 is connected to the top of the fixing frame 1. The protective pad 11 can protect the bottom surface of the drone and have a certain shock absorbing effect.

[0019] Combined with Figure 1The support structure includes a support tube 3 and a support rod 4. The upper end of the support rod 4 passes through the lower wall of the fixing frame 1 and is connected with a connecting plate 5. The upper end of the connecting plate 5 is connected to the inner upper wall of the fixing frame 1 through a damping shock absorber 6. The lower wall of the fixing frame 1 is provided with a limiting sliding hole matching the support rod 4. The upper end of the support rod 4 is sleeved with a spring 7. The upper and lower ends of the spring 7 are respectively connected to the connecting plate 5 and the fixing frame 1. The lower end of the support rod 4 is inserted in the support tube 3 and its end is connected and fixed to the support tube 3 through a shock absorber block 8. The lower end of the support rod 4 and the upper end of the support tube 3 are tilted. The spring 7 cooperates with the damping shock absorber 6 to play a good shock absorbing role. The support rod 4 and the support tube 3 are tilted, which can not only increase the support stability of the device, but also cooperate with the shock absorber block 8 to achieve oblique upward shock absorption, and the shock absorption effect is good.

[0020] Combined with Figure 1 , Attachment Figure 2 The rotating plate 2 is rotatably connected to the lower end of the support tube 3, and the rotating plate 2 can rotate relative to the support tube 3, so as to automatically adjust according to the landing angle of the drone and adapt to different landing angles. The vertical section of the rotating plate 2 is a trapezoid, which can play a good supporting effect.

[0021] Combined with Figure 1 , Attachment Figure 2 A plurality of springs 9 are connected to the upper edge of the rotating plate 2, and the upper ends of the springs 9 are connected to the side walls of the support tube 3. The springs 9 are evenly arranged above the rotating plate 2. The springs 9 are evenly arranged, and their cooperation can prevent the support tube 3 from shaking and make it fast and stable.

[0022] Combined with Figure 1 , Attachment Figure 2 A shock absorbing pad 10 is connected to the lower part of the rotating plate 2. The shock absorbing block 8, the shock absorbing pad 10 and the protective pad 11 are made of rubber material, and multiple shock absorption can achieve good shock absorption effect.

[0023] The specific implementation mode of the utility model is as follows: the fixing frame 1 is installed under the drone. When the drone lands, the rotating plate 2 touches the ground first. If the drone lands at an angle, the rotating plate 2 that contacts the ground first rotates in coordination with the landing angle of the drone, so that it is completely in contact with the ground. At the same time, the spring 2 9 cooperates to retract and contract, and under the elastic force of the spring 2 9, the supporting tube 3 will quickly return to the normal state, thereby adjusting the drone to a horizontal state. As the drone continues to land, the damping shock absorber 6 and the spring 1 7 cooperate with each other to achieve vertical shock absorption. The support rod 4 is compressed to squeeze the shock absorbing block 8, thereby achieving oblique shock absorption.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A shock absorbing device for a drone landing gear, comprising a fixing frame (1), a supporting structure and a rotating plate (2), characterized in that: The fixing frame (1) is a hollow frame, and the supporting structure comprises a supporting tube (3) and a supporting rod (4). The upper end of the supporting rod (4) passes through the lower wall of the fixing frame (1) and is connected to a connecting plate (5). The upper part of the connecting plate (5) is connected to the inner upper wall of the fixing frame (1) through a damping shock absorber (6). The lower wall of the fixing frame (1) is provided with a limiting sliding hole matching the supporting rod (4). The upper end of the supporting rod (4) is sleeved with a spring (7). The upper end of the spring (7) is The lower two ends are respectively connected to the connecting plate (5) and the fixing frame (1); the lower end of the support rod (4) is inserted into the support tube (3) and its end is connected and fixed to the support tube (3) through a shock-absorbing block (8); the rotating plate (2) is rotatably connected to the lower end of the support tube (3); a plurality of springs (9) are connected to the upper edge of the rotating plate (2); the upper ends of the springs (9) are connected to the side wall of the support tube (3); and a shock-absorbing pad (10) is connected to the lower side of the rotating plate (2).

2. The shock absorbing device for landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: A protective pad (11) is connected to the upper portion of the fixing frame (1).

3. The shock absorbing device for landing gear of a UAV according to claim 1, characterized in that: The lower end of the support rod (4) and the upper end of the support tube (3) are arranged at an incline.

4. The shock absorbing device for landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The second spring (9) is evenly arranged above the rotating plate (2).

5. The shock absorbing device for landing gear of an unmanned aerial vehicle according to claim 1, characterized in that: The rotating plate (2) has a trapezoidal vertical section.

6. The shock absorbing device for landing gear of an unmanned aerial vehicle according to claim 2, characterized in that: The shock absorbing block (8), the shock absorbing pad (10) and the protective pad (11) are made of rubber material.

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