Vibration reduction structure of unmanned aerial vehicle

Abstract

The utility model provides an unmanned aerial vehicle damping structure which comprises a mounting plate fixed to the lower side of an unmanned aerial vehicle, a rotating shaft is rotationally matched with the lower side of the mounting plate, supporting legs are arranged on the lower side of the rotating shaft, telescopic rods are arranged between the rotating shaft and the supporting legs, damping sleeves are arranged on the supporting legs, and damping positioning structures are arranged at the two ends of the rotating shaft. A fixing block is arranged on the lower side of the mounting plate, a clamping groove is formed in the fixing block, and the clamping groove corresponds to the telescopic rod. According to the unmanned aerial vehicle, the rotating shaft is mounted on the lower side of the mounting plate, the supporting legs are mounted on the lower side of the rotating shaft, and the supporting legs can be driven to rotate through the rotating shaft, so that the supporting legs can be folded during flight and prevented from being subjected to large wind resistance, and vibration of the unmanned aerial vehicle in the flight process due to the wind resistance is prevented; the telescopic rods are installed between the rotating shafts and the supporting legs, buffering can be conducted during landing, the damping positioning structures are installed at the two ends of the rotating shafts, and damping can be conducted through the damping positioning structures and the damping sleeves during landing and take-off.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction of unmanned aerial vehicles, in particular to a vibration reduction structure of an unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicles, referred to as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices. Most existing drones have tripods installed at the bottom to support the drone, but the drone tripod will be subject to a certain amount of air resistance during flight, causing the drone to sway due to wind resistance, thereby causing the drone to vibrate during flight, and when landing, the drone will also vibrate due to the impact, which may cause damage to the drone.

[0003] To this end, the utility model provides a vibration reduction structure for an unmanned aerial vehicle. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a vibration reduction structure for an unmanned aerial vehicle to solve the problems raised in the above-mentioned background technology. The utility model can fold up the supporting legs during flight to prevent the supporting legs from being subjected to large wind resistance, thereby preventing the unmanned aerial vehicle from vibrating during flight due to wind resistance; it can provide cushioning during landing, and can use a shock-absorbing positioning structure and a shock-absorbing sleeve to reduce shock during landing and take-off.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a vibration reduction structure for a UAV, including a mounting plate fixed to the lower side of the UAV, the lower side of the mounting plate is rotatably matched with a rotating shaft, a support leg is installed on the lower side of the rotating shaft, a telescopic rod is installed between the rotating shaft and the support leg, a shock-absorbing sleeve is installed on the support leg, both ends of the rotating shaft are equipped with a shock-absorbing positioning structure, a fixing block is installed on the lower side of the mounting plate, a slot is opened in the fixing block, and the slot corresponds to the telescopic rod.

[0006] Furthermore, a rotating frame is fixed on the lower side of the mounting plate, and the rotating frame corresponds to the rotating shaft.

[0007] Furthermore, a rotation groove is provided in the rotating frame, and the shock-absorbing positioning structure includes a first damping block fixed in the rotation groove and a second damping block fixed on the circumference of the rotating shaft, and a limiting block is fixed on the second damping block.

[0008] Furthermore, a motor is fixed on one side of the rotating frame, and an output end of the motor is fixedly connected to the rotating shaft.

[0009] Furthermore, the telescopic rod includes a first rod body and a second rod body, the first rod body is fixedly connected to the rotating shaft, and the second rod body is fixedly connected to the supporting leg.

[0010] Furthermore, the first rod body is slidably connected to the second rod body, and a spring is fixed between the first rod body and the second rod body.

[0011] Furthermore, the shock-absorbing sleeve is fixed on the supporting leg, and the shock-absorbing sleeve is made of rubber material.

[0012] Furthermore, the fixing block is made of elastic material.

[0013] Beneficial effects of the utility model: The utility model provides a vibration reduction structure for an unmanned aerial vehicle, comprising a mounting plate; a rotating shaft; a supporting leg; a telescopic rod; a shock-absorbing sleeve; and a shock-absorbing positioning structure.

[0014] A rotating shaft is installed on the lower side of the mounting plate, and a supporting leg is installed on the lower side of the rotating shaft. The supporting leg can be driven to rotate by the rotating shaft, so that the supporting leg can be folded during flight to prevent the supporting leg from being subjected to large wind resistance, thereby preventing the UAV from vibrating during flight due to wind resistance. A telescopic rod is installed between the rotating shaft and the supporting leg to provide cushioning during landing. A shock-absorbing sleeve is provided on the supporting leg, and a shock-absorbing positioning structure is installed at both ends of the rotating shaft. The shock-absorbing positioning structure and the shock-absorbing sleeve can be used to reduce shock during landing and take-off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the assembled three-dimensional structure of an overall vibration reduction structure of an unmanned aerial vehicle according to the utility model;

[0016] Figure 2 This is a schematic diagram of the assembly three-dimensional structure of the mounting plate and the supporting legs in a vibration reduction structure of an unmanned aerial vehicle of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly cross-sectional structure of the support legs and telescopic rods in a vibration reduction structure of an unmanned aerial vehicle of the utility model;

[0018] Figure 4 This is a schematic diagram of the assembly structure of a rotating frame and a rotating shaft in a vibration reduction structure of an unmanned aerial vehicle of the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram at A in the middle;

[0020] In the figure: 1. mounting plate; 2. rotating frame; 3. motor; 4. supporting leg; 5. shock-absorbing sleeve; 6. telescopic rod; 7. first rod body; 8. second rod body; 9. spring; 10. rotating shaft; 11. first damping block; 12. second damping block; 13. rotating groove; 14. limiting block; 15. fixing block; 16. slot. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a vibration reduction structure for a drone, comprising a mounting plate 1 fixed to the lower side of the drone, a rotating shaft 10 rotatably matched at the lower side of the mounting plate 1, a supporting leg 4 is mounted at the lower side of the rotating shaft 10, a telescopic rod 6 is mounted between the rotating shaft 10 and the supporting leg 4, a shock absorbing sleeve 5 is mounted on the supporting leg 4, shock absorbing positioning structures are mounted at both ends of the rotating shaft 10, a fixing block 15 is mounted at the lower side of the mounting plate 1, a card slot 16 is opened in the fixing block 15, and the card slot 16 corresponds to the telescopic rod 6.

[0023] In this embodiment, a rotating frame 2 is fixed on the lower side of the mounting plate 1, the rotating frame 2 corresponds to the rotating shaft 10, a rotating groove 13 is opened in the rotating frame 2, the shock-absorbing positioning structure includes a first damping block 11 fixed in the rotating groove 13 and a second damping block 12 fixed on the circumference of the rotating shaft 10, a limiting block 14 is fixed on the second damping block 12, a motor 3 is fixed on one side of the rotating frame 2, the output end of the motor 3 is fixedly connected to the rotating shaft 10, and a shock-absorbing sleeve 5 is fixed on the supporting leg 4, and the shock-absorbing sleeve 5 is made of rubber material.

[0024] Specifically, when the drone is flying, the motor 3 is started, and the motor 3 drives the rotating shaft 10 to rotate, thereby driving the supporting legs 4 and the telescopic rod 6 to stick to the bottom of the mounting plate 1, thereby preventing the supporting legs 4 and the telescopic rod 6 from being subjected to large wind resistance, thereby preventing the drone from vibrating due to wind resistance during flight.

[0025] When the drone is landing, the shaft 10 rotates to drive the supporting legs 4 to prop up until the supporting legs 4 are in contact with the lifting platform. At this time, the shock-absorbing sleeve 5 can play a shock-absorbing effect, and the drone presses down the supporting legs 4, so that the shaft 10 rotates relatively outward, so that the first damping block 11 is in contact with the second damping block 12, thereby performing shock absorption.

[0026] The telescopic rod 6 includes a first rod body 7 and a second rod body 8. The first rod body 7 is fixedly connected to the rotating shaft 10, the second rod body 8 is fixedly connected to the supporting leg 4, the first rod body 7 and the second rod body 8 are slidably connected, and a spring 9 is fixed between the first rod body 7 and the second rod body 8.

[0027] Specifically, when the supporting leg 4 falls, the telescopic rod 6 will be squeezed, thereby compressing the spring 9, which can play a buffering effect and prevent the drone from being subjected to a large impact force.

[0028] The fixing block 15 is made of elastic material. When the supporting leg 4 is folded, the rotating shaft 10 drives the telescopic rod 6 and the supporting leg 4 to rotate, so that the telescopic rod 6 is inserted into the card slot 16, so as to position the supporting leg 4 and prevent the supporting leg 4 from being subjected to large wind resistance.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vibration reduction structure for an unmanned aerial vehicle, comprising a mounting plate (1) fixed to the underside of the unmanned aerial vehicle, characterized in that: A rotating shaft (10) is rotatably matched at the lower side of the mounting plate (1), a supporting leg (4) is mounted at the lower side of the rotating shaft (10), a telescopic rod (6) is mounted between the rotating shaft (10) and the supporting leg (4), a shock absorbing sleeve (5) is mounted on the supporting leg (4), shock absorbing positioning structures are mounted at both ends of the rotating shaft (10), a fixing block (15) is mounted at the lower side of the mounting plate (1), a slot (16) is formed in the fixing block (15), and the slot (16) corresponds to the telescopic rod (6).

2. The vibration reduction structure of an unmanned aerial vehicle according to claim 1, characterized in that: A rotating frame (2) is fixed on the lower side of the mounting plate (1), and the rotating frame (2) corresponds to the rotating shaft (10).

3. The vibration reduction structure of an unmanned aerial vehicle according to claim 2, characterized in that: A rotating groove (13) is provided in the rotating frame (2), and the shock-absorbing positioning structure comprises a first damping block (11) fixed in the rotating groove (13) and a second damping block (12) fixed on the circumference of the rotating shaft (10), and a limiting block (14) is fixed on the second damping block (12).

4. The vibration reduction structure of an unmanned aerial vehicle according to claim 2, characterized in that: A motor (3) is fixed to one side of the rotating frame (2), and an output end of the motor (3) is fixedly connected to a rotating shaft (10).

5. The vibration reduction structure of an unmanned aerial vehicle according to claim 1, characterized in that: The telescopic rod (6) comprises a first rod body (7) and a second rod body (8); the first rod body (7) is fixedly connected to the rotating shaft (10), and the second rod body (8) is fixedly connected to the supporting leg (4).

6. The vibration reduction structure of an unmanned aerial vehicle according to claim 5, characterized in that: The first rod body (7) is slidably connected to the second rod body (8), and a spring (9) is fixed between the first rod body (7) and the second rod body (8).

7. The vibration reduction structure of an unmanned aerial vehicle according to claim 1, characterized in that: The shock-absorbing sleeve (5) is sleeved and fixed on the supporting leg (4), and the shock-absorbing sleeve (5) is made of rubber material.

8. The vibration reduction structure of an unmanned aerial vehicle according to claim 1, characterized in that: The fixing block (15) is made of elastic material.

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