Shockproof undercarriage of unmanned aerial vehicle

Abstract

The utility model relates to an unmanned aerial vehicle shockproof undercarriage, which belongs to the technical field of unmanned aerial vehicle undercarriages, and comprises a connecting frame and an undercarriage main body, the top of the undercarriage main body is fixedly provided with a connecting frame, two sides of the bottom of the undercarriage main body are uniformly and fixedly provided with spring damping shock absorbers, and the bottoms of the spring damping shock absorbers are fixedly connected with a connecting base. Torsion springs are evenly and fixedly connected to the two sides of the connecting base, the connecting base is rotationally connected with ground gripping claws through the torsion springs, the connecting frame is fixedly connected with an unmanned aerial vehicle body, a band-type brake stepping motor is fixedly connected to the inner wall of the connecting frame, and two-way lead screws are rotationally connected to the two sides of the inner wall of the connecting frame. The two sides of the outer walls of the two-way lead screws on the two sides are in threaded connection with lead screw nuts. The unmanned aerial vehicle landing device is convenient to disassemble and assemble at the bottom of an unmanned aerial vehicle, so that the unmanned aerial vehicle is convenient to store and box and move, the ground gripping capacity is further improved, and the unmanned aerial vehicle can land more stably on the uneven or slope ground.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle landing gears, in particular to a shockproof landing gear for unmanned aerial vehicles. Background Art

[0002] Unmanned aerial vehicle, referred to as "drone", is an unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or operated completely or intermittently autonomously by an on-board computer. Existing drones usually need to be equipped with cameras, scanners, detectors and other precision equipment to work, and the landing gear is the cushioning device when the drone comes into contact with the ground during landing.

[0003] After searching, the existing Chinese patent with application number CN202320256865.9 discloses a UAV landing gear, which plays a buffering role through the deformation force of the support rod in contact with the ground. At the same time, the support rod drives the mounting block to move through the constraint block to slide inside the constraint groove, so that the movable rod slides inside the mounting groove, and plays a buffering role by squeezing the deformation of the connecting tube. The synchronous connecting rod squeezes the damping device to play a damping role. In this way, the situation where the UAV contacts the ground without buffering and causes the precision equipment to malfunction may be avoided.

[0004] The above technical solution has the following defects: although such a shockproof landing gear structure of a UAV can contact the ground through the support rod to play a buffering role with its own deformation force and damping device, it is inconvenient to quickly disassemble and assemble at the bottom of the UAV during actual use, and it is relatively inconvenient when packing the UAV. Moreover, such a flat UAV landing gear is easy to slide and topple over when forced to land on uneven or inclined ground, causing damage. For this reason, a shockproof landing gear of a UAV is proposed, which is convenient for disassembly and assembly at the bottom of the UAV, thereby facilitating storage and packing for movement, and further improving the gripping ability, so that the UAV can land more stably on uneven ground.

[0005] In view of this, the author improves and solves the above problems, concentrates on research and cooperates with theoretical application, and finally proposes a technical solution with reasonable design and effective improvement of the above defects.

[0006] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0007] The utility model provides a shockproof landing gear for a UAV, which solves the problems raised in the above background, is easy to disassemble and assemble at the bottom of the UAV, so that it is convenient to store and pack for movement, and further improves the gripping ability, so that the UAV can land more stably on uneven ground.

[0008] The solution of the utility model to solve the above technical problems is as follows: an anti-vibration landing gear for unmanned aerial vehicles, comprising a connecting frame and a landing gear body, a connecting frame is fixedly installed on the top of the landing gear body, spring damping shock absorbers are evenly fixedly installed on both sides of the bottom of the landing gear body, the bottom of the spring damping shock absorber is fixedly connected to a connecting base, both sides of the connecting base are evenly fixedly connected with torsion springs, the connecting base is rotatably connected with a gripping claw through the torsion spring, the connecting frame is fixedly connected to the unmanned aerial vehicle body, the inner wall of the connecting frame is fixedly connected to a brake stepping motor, both sides of the inner wall of the connecting frame are rotatably connected with a two-way lead screw, both sides of the outer walls of the two-way lead screws on both sides are threadedly connected with lead screw nuts, each side of the lead screw nut is fixedly connected to a positioning plate, the opposite sides of the positioning plates on both sides are fixedly connected with positioning blocks, and the two-way lead screw on one side is fixedly connected to the brake stepping motor.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the width of the positioning plates on both sides is consistent with the width of the inner wall of the connecting frame, and the positioning plates slide on the inner wall of the connecting frame.

[0011] Furthermore, the bidirectional lead screws on both sides are fixedly connected with synchronous wheels, the outer walls of the synchronous wheels on both sides are provided with synchronous belts, and the synchronous wheels on both sides are connected through synchronous belt transmission.

[0012] Furthermore, a through hole is provided at the bottom of the connecting frame corresponding to the connecting frame.

[0013] Furthermore, the connection frame is provided with a positioning hole corresponding to the positioning card block.

[0014] Furthermore, the gripping claw is configured as a sickle-shaped structure.

[0015] Furthermore, limit blocks are fixedly installed on both sides of the inner wall of the connecting frame, and the inner wall of the limit block is rotatably connected to the middle position of the bidirectional lead screw through a bearing.

[0016] The utility model provides a shockproof landing gear for a UAV, which has the following advantages:

[0017] 1. Starting the brake stepper motor can drive the two-way lead screw on one side to rotate. The synchronous wheels of the two-way lead screws on both sides are connected through synchronous belt transmission, so that the two-way lead screws on both sides can rotate synchronously. The two-way lead screws on both sides can drive the positioning plates on both sides to slide in the connecting frame through the lead screw nuts. The connecting frame of the landing gear body is inserted into the connecting frame through the access hole. The positioning plates on both sides are moved to the opposite side to insert the positioning card blocks into the inner wall of the connecting frame, so that the landing gear body can be stably installed at the bottom of the connecting frame. Starting the brake stepper motor drives the positioning plates on both sides to separate so that the positioning card blocks are separated from the connecting frame, and the connecting frame and the landing gear body can be separated, so that they are easy to store separately;

[0018] 2. When the landing gear body at the bottom of the drone body falls on the ground, the gripping claw is rotatably connected to the connecting base through the torsion spring. The torsion spring can reduce vibration during the rotation process. When the drone body falls on the ground, the gripping claw can be inserted into the ground to grip the ground, thereby preventing the drone body from sliding on uneven ground. The spring damping shock absorber at the gap between the landing gear body and the connecting base can shock absorb and buffer the impact of landing, thereby providing shock absorption protection for the drone body. In addition, multiple spring damping shock absorbers are arranged on both sides of the bottom of the landing gear body, which can be more suitable for special-shaped ground.

[0019] 3. Such anti-vibration landing gear for drones is easy to disassemble and assemble at the bottom of the drone, making it easier to store and pack for movement, and further improving the gripping ability, allowing the drone to land more stably on uneven or sloping ground.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a UAV anti-vibration landing gear in a disassembled state provided by an embodiment of the utility model;

[0023] Figure 2 A front view of a UAV anti-vibration landing gear provided by an embodiment of the utility model;

[0024] Figure 3 A front view of a UAV anti-vibration landing gear in a landing state provided by an embodiment of the utility model;

[0025] Figure 4 A structural schematic diagram of a connection state between a connecting frame and a connecting frame in a shockproof landing gear of a drone provided by an embodiment of the utility model;

[0026] Figure 5 A schematic diagram of the structure of a connecting frame in a shockproof landing gear of a drone provided by an embodiment of the utility model;

[0027] Figure 6A side view of a landing gear body of a UAV anti-vibration landing gear provided in one embodiment of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. UAV body; 2. Landing gear body; 3. Connection frame; 4. Spring damping shock absorber; 5. Connection base; 6. Torsion spring; 7. Gripping claw; 8. Connection frame; 9. Brake stepper motor; 10. Bidirectional lead screw; 11. Lead screw nut; 12. Positioning plate; 13. Synchronous wheel; 14. Synchronous belt; 15. Access hole; 16. Positioning block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] like Figure 1-4As shown, a shockproof landing gear for an unmanned aerial vehicle comprises a connecting frame 8 and a landing gear body 2. A connecting frame 3 is fixedly installed on the top of the landing gear body 2. Spring damping shock absorbers 4 are evenly fixedly installed on both sides of the bottom of the landing gear body 2. A connecting base 5 is fixedly connected to the bottom of the spring damping shock absorber 4. Torsion springs 6 are evenly fixedly connected to the two sides of the connecting base 5. The connecting base 5 is rotatably connected to a gripping claw 7 through the torsion spring 6. The connecting frame 8 is fixedly connected to the unmanned aerial vehicle body 1. A brake stepping motor 9 is fixedly connected to the inner wall of the connecting frame 8. Bidirectional lead screws 10 are rotatably connected to both sides of the inner wall of the connecting frame 8. Lead screw nuts 11 are threadedly connected to both sides of the outer walls of the bidirectional lead screws 10 on both sides. The lead screw nuts 11 on each side are fixedly connected to a positioning plate 12. Positioning blocks 16 are fixedly connected to the opposite sides of the positioning plates 12 on both sides. The bidirectional lead screw 10 on one side is fixedly connected to the brake stepping motor 9.

[0034] Preferably, the width of the positioning plates 12 on both sides is consistent with the width of the inner wall of the connecting frame 8 , and the positioning plates 12 slide on the inner wall of the connecting frame 8 .

[0035] Preferably, the bidirectional lead screws 10 on both sides are fixedly connected with synchronous wheels 13 , and the outer walls of the synchronous wheels 13 on both sides are provided with synchronous belts 14 , and the synchronous wheels 13 on both sides are transmission-connected via the synchronous belts 14 .

[0036] Preferably, a through hole 15 is provided at the bottom of the connecting frame 8 corresponding to the connecting frame 3 .

[0037] Preferably, the connection frame 3 is provided with a positioning hole corresponding to the positioning card block 16 .

[0038] Preferably, the gripping claw 7 is configured as a sickle-shaped structure.

[0039] Preferably, limit blocks are fixedly installed on both sides of the inner wall of the connecting frame 8, and the inner wall of the limit block is rotatably connected to the middle position of the bidirectional lead screw 10 through a bearing.

[0040] The specific working principle and use method of the utility model are as follows: starting the brake stepper motor 9 can drive the two-way screw 10 on one side to rotate, and the synchronous wheels 13 of the two-way screws 10 on both sides are connected by a synchronous belt 14, so that the two-way screws 10 on both sides can rotate synchronously, and the two-way screws 10 on both sides can drive the two-way positioning plates 12 on both sides to slide in the connecting frame 8 through the screw nuts 11, and the connecting frame 3 of the landing gear body 2 is inserted into the connecting frame 8 through the access hole 15, and the two-side positioning plates 12 are moved to the opposite side to insert the positioning block 16 into the inner wall of the connecting frame 3, so that the landing gear body 2 can be stably installed at the bottom of the connecting frame 8 , start the brake stepper motor 9 to drive the positioning plates 12 on both sides to separate so that the positioning block 16 is separated from the connecting frame 3, and the connecting frame 8 and the landing gear body 2 can be separated, so as to facilitate their separate storage. When the landing gear body 2 at the bottom of the drone body 1 falls on the ground, the gripping claw 7 is rotatably connected to the connecting base 5 through the torsion spring 6. The torsion spring 6 can reduce vibration during the rotation process. When the drone body 1 falls on the ground, the gripping claw 7 can be inserted into the ground to grip the ground, thereby preventing the drone body 1 from sliding on uneven ground. The spring damping shock absorber 4 at the gap between the landing gear body 2 and the connecting base 5 can shock and buffer the impact of landing.

[0041] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An anti-vibration landing gear for an unmanned aerial vehicle, comprising a connecting frame (8) and a landing gear body (2), characterized in that: A connection frame (3) is fixedly installed on the top of the landing gear body (2); spring damping shock absorbers (4) are evenly fixedly installed on both sides of the bottom of the landing gear body (2); a connection base (5) is fixedly connected to the bottom of the spring damping shock absorber (4); torsion springs (6) are evenly fixedly connected to both sides of the connection base (5); the connection base (5) is rotatably connected to a gripping claw (7) via the torsion spring (6); the connection frame (8) is fixedly connected to the drone body (1); The inner wall of the connecting frame (8) is fixedly connected to a brake stepping motor (9), and both sides of the inner wall of the connecting frame (8) are rotatably connected to bidirectional lead screws (10), and both sides of the outer walls of the bidirectional lead screws (10) on both sides are threadedly connected to lead screw nuts (11), and the lead screw nuts (11) on each side are fixedly connected to a positioning plate (12), and the opposite sides of the positioning plates (12) on both sides are fixedly connected to positioning blocks (16), and the bidirectional lead screw (10) on one side is fixedly connected to the brake stepping motor (9).

2. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: The width of the positioning plates (12) on both sides is consistent with the width of the inner wall of the connecting frame (8), and the positioning plates (12) slide on the inner wall of the connecting frame (8).

3. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: The bidirectional lead screws (10) on both sides are fixedly connected with synchronous wheels (13), the outer walls of the synchronous wheels (13) on both sides are provided with synchronous belts (14), and the synchronous wheels (13) on both sides are transmission-connected via the synchronous belts (14).

4. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: The bottom of the connecting frame (8) is provided with an access hole (15) corresponding to the connecting frame (3).

5. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: The connection frame (3) is provided with a positioning plug hole corresponding to the positioning card block (16).

6. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: The ground gripping claw (7) is configured as a sickle-shaped structure.

7. The anti-vibration landing gear for unmanned aerial vehicles according to claim 1, characterized in that: Limit blocks are fixedly installed on both sides of the inner wall of the connecting frame (8), and the inner wall of the limit block is rotatably connected to the middle position of the bidirectional lead screw (10) through a bearing.

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