Unmanned aerial vehicle with buffer structure

By installing guide sleeves and protective sleeves on the bottom of the drone, combined with a buffer structure of damping springs and limit rods, the problem of internal vibration caused by the drone's landing gear colliding with the ground was solved, improving the drone's performance and stability.

CN224256934UActive Publication Date: 2026-05-19NAN JING HAO JUN KE JI YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NAN JING HAO JUN KE JI YOU XIAN GONG SI
Filing Date
2025-08-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The drone's landing gear is fixed to the bottom, which can cause it to collide with the ground when falling at too high a speed, resulting in vibration damage to internal parts and reduced performance.

Method used

Guide sleeves and protective sleeves are installed on the front and rear sides of the bottom of the drone. A buffer structure is formed by damping springs and limit rods. The protective sleeves are fixed together with components such as transmission box, rotating rod, and turntable. The collision force is buffered through elastic recovery and mechanical structure.

Benefits of technology

It effectively avoids vibrations caused by the landing gear colliding with the ground, enhances the performance of the drone, prevents the protective cover from falling off, and improves stability and cushioning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The unmanned aerial vehicle with the buffer structure comprises the unmanned aerial vehicle body, the front side and the rear side of the bottom of the unmanned aerial vehicle body are fixedly connected with guide sleeves, the bottoms of the guide sleeves are sleeved with protective sleeves, the tops of the inner walls of the guide sleeves are slidably connected with a supporting plate, and the bottom of the supporting plate is fixedly connected with a plurality of first limiting rods; and a moving plate is slidably connected to the bottom of the inner wall of the guide sleeve, a plurality of second limiting rods are fixedly connected to the top of the moving plate, damping springs sleeve the surfaces of the first limiting rods, and the bottoms of the damping springs sleeve the surfaces of the second limiting rods and are fixedly connected with the top of the moving plate. The landing gear of the unmanned aerial vehicle can be effectively buffered, the phenomena that the falling speed of the unmanned aerial vehicle is too high, the landing gear collides with the ground and is prone to deformation, and internal parts of the unmanned aerial vehicle are oscillated are avoided, and the use performance of the unmanned aerial vehicle is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV with a buffer structure. Background Technology

[0002] Drones are needed for aerial photography. Unmanned vehicles, or drones for short, are devices that are operated using radio remote control equipment and onboard program control devices, or are operated autonomously, either completely or intermittently, by an onboard computer.

[0003] According to application number 202121289928.8 published on the China Patent Network, a drone includes a drone body, an arm, and a wing assembly for flight. The arm is fixedly connected to the drone body, and the wing assembly is fixed to the arm. The drone also includes a fixed base, a rotary joint, an extension rod, and an elastic positioning component. The fixed base is fixed to the arm, the rotary joint is rotatably connected to the fixed base, the extension rod is fixedly connected to the rotary joint, and the extension rod rotates relative to the fixed base through the rotary joint. The elastic positioning component is installed on the fixed base and is used to fix the extension rod. The drone provided by this utility model can carry other devices, is convenient to package and transport, and has acceptable quality. However, the landing gear of this drone is mostly fixedly connected to the bottom of the drone. This means that if the user lands the drone at too high a speed, the landing gear will collide with the ground, causing the internal parts of the drone to be affected by vibration. Repeated collisions will damage the drone and reduce its performance.

[0004] Therefore, it is necessary to improve the drone to prevent the landing gear from colliding with the ground at excessively high descent speed, which could affect the internal parts of the drone. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a drone with a buffer structure, which has the advantage of good buffering effect. This solves the problem that most drones have landing gear that is fixedly connected to the bottom of the drone. This causes the landing gear to collide with the ground if the user lands the drone at too high a speed, resulting in vibration affecting the internal parts of the drone. Repeated collisions can damage the drone and reduce its performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drone with a buffer structure, comprising a drone;

[0007] Guide sleeves are fixedly connected to the front and rear sides of the bottom of the drone. A protective sleeve is fitted on the bottom of the guide sleeve. A support plate is slidably connected to the top of the inner wall of the guide sleeve. Multiple first limiting rods are fixedly connected to the bottom of the support plate. A moving plate is slidably connected to the bottom of the inner wall of the guide sleeve. Multiple second limiting rods are fixedly connected to the top of the moving plate. A damping spring is fitted on the surface of the first limiting rod. The top of the damping spring is fixedly connected to the bottom of the support plate. The bottom of the damping spring is fitted on the surface of the second limiting rod and fixedly connected to the top of the moving plate. Two support rods are fixedly connected to the bottom of the moving plate. The bottom of the support rods extends through to the bottom of the guide sleeve and is fixedly connected to the protective plate.

[0008] In a preferred embodiment of this invention, a transmission box is fixedly connected to the outer side of the guide sleeve, a rotating rod is provided on the outer side of the transmission box, the inner side of the rotating rod extends into the interior of the transmission box and is movably connected to the outer side of the guide sleeve through a bearing, a turntable is fixedly connected to the surface of the rotating rod, a traction rod is fixedly connected to the top and bottom of the outer side of the turntable, a pull rod is sleeved on the surface of the traction rod, a push plate is connected to the end of the pull rod away from the traction rod through a pin, a connecting plate is fixedly connected to the outer side of the push plate, a clamping plate is fixedly connected to the end of the connecting plate away from the push plate to the surface of the guide sleeve, and a clamping plate is fixedly connected to the end of the clamping plate away from the connecting plate to the bottom of the protective sleeve and in contact with the bottom of the protective sleeve.

[0009] As a preferred embodiment of this utility model, a torsion spring is sleeved on the surface of the rotating rod, the outer side of the torsion spring is fixedly connected to the inner wall of the transmission box, and the inner side of the torsion spring is fixedly connected to the outer side of the turntable.

[0010] As a preferred embodiment of this utility model, guide rods are horizontally fixedly connected to both sides of the inner wall of the transmission box, and the end of the guide rod away from the transmission box passes through the push plate and is slidably connected to the push plate.

[0011] As a preferred embodiment of this utility model, a rotating block is provided on the outer side of the transmission box, and the inner side of the rotating block is fixedly connected to the outer side of the rotating rod.

[0012] As a preferred embodiment of this invention, a rubber pad is provided at the bottom of the support rod, and the top of the rubber pad is adhered to the bottom of the protective plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model can effectively buffer the landing gear of the drone, avoid the drone falling too fast, and prevent the landing gear from deforming and vibrating when it collides with the ground, thus enhancing the performance of the drone.

[0015] 2. This utility model, by setting up a transmission box, rotating rod, turntable, traction rod, pull rod, push plate, connecting plate and clamping plate, can fix the protective sleeve, avoiding the phenomenon that the protective sleeve is easily detached during use because it is only clamped by friction. Attached Figure Description

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

[0017] Figure 2 This is a partially enlarged schematic diagram of the present invention;

[0018] Figure 3 This is a large-scale view of the guide sleeve of this utility model after disassembly and reassembly.

[0019] Figure 4 This is an enlarged cross-sectional view of the transmission box of this utility model.

[0020] In the diagram: 1. UAV; 2. Guide sleeve; 3. Protective sleeve; 4. Support plate; 5. First limit rod; 6. Moving plate; 7. Second limit rod; 8. Damping spring; 9. Support rod; 10. Protective plate; 11. Transmission box; 12. Rotating rod; 13. Turntable; 14. Traction rod; 15. Pull rod; 16. Push plate; 17. Connecting plate; 18. Clamping plate; 19. Torsion spring; 20. Guide rod; 21. Rotating block; 22. Rubber pad. 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 protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides a drone with a buffer structure, including drone 1;

[0023] Guide sleeves 2 are fixedly connected to the front and rear sides of the bottom of the drone 1. A protective sleeve 3 is fitted on the bottom of the guide sleeve 2. A support plate 4 is slidably connected to the top of the inner wall of the guide sleeve 2. Multiple first limiting rods 5 are fixedly connected to the bottom of the support plate 4. A movable plate 6 is slidably connected to the bottom of the inner wall of the guide sleeve 2. Multiple second limiting rods 7 are fixedly connected to the top of the movable plate 6. A damping spring 8 is fitted on the surface of the first limiting rod 5. The top of the damping spring 8 is fixedly connected to the bottom of the support plate 4. The bottom of the damping spring 8 is fitted on the surface of the second limiting rod 7 and fixedly connected to the top of the movable plate 6. Two support rods 9 are fixedly connected to the bottom of the movable plate 6. The bottom of the support rods 9 extends through to the bottom of the guide sleeve 2 and is fixedly connected to a protective plate 10.

[0024] refer to Figure 4 A transmission box 11 is fixedly connected to the outer side of the guide sleeve 2. A rotating rod 12 is provided on the outer side of the transmission box 11. The inner side of the rotating rod 12 extends into the interior of the transmission box 11 and is movably connected to the outer side of the guide sleeve 2 through a bearing. A turntable 13 is fixedly connected to the surface of the rotating rod 12. A traction rod 14 is fixedly connected to the top and bottom of the outer side of the turntable 13. A pull rod 15 is sleeved on the surface of the traction rod 14. A push plate 16 is connected to the end of the pull rod 15 away from the traction rod 14 through a pin. A connecting plate 17 is fixedly connected to the outer side of the push plate 16. A clamping plate 18 is fixedly connected to the end of the connecting plate 17 away from the push plate 16 on the surface of the guide sleeve 2. The clamping plate 18 extends to the bottom of the protective sleeve 3 and contacts the bottom of the protective sleeve 3.

[0025] As a technical optimization of this utility model, by setting up a transmission box 11, a rotating rod 12, a turntable 13, a traction rod 14, a pull rod 15, a push plate 16, a connecting plate 17, and a clamping plate 18, the protective sleeve 3 can be fixed, avoiding the phenomenon that the protective sleeve 3 is easily detached during use because it is only clamped by friction.

[0026] refer to Figure 4 A torsion spring 19 is fitted on the surface of the rotating rod 12. The outer side of the torsion spring 19 is fixedly connected to the inner wall of the transmission box 11, and the inner side of the torsion spring 19 is fixedly connected to the outer side of the turntable 13.

[0027] As a technical optimization of this utility model, by setting the torsion spring 19, the rotating rod 12 can be automatically rotated, thereby improving the performance of the rotating rod 12.

[0028] refer to Figure 4 Guide rods 20 are horizontally fixedly connected to both sides of the inner wall of the transmission box 11. The end of the guide rod 20 away from the transmission box 11 passes through the push plate 16 and is slidably connected to the push plate 16.

[0029] As a technical optimization of this utility model, by setting the guide rod 20, the push plate 16 can be guided, thus avoiding the phenomenon that the push plate 16 is prone to tilting when moving.

[0030] refer to Figure 4 A rotating block 21 is provided on the outer side of the transmission box 11, and the inner side of the rotating block 21 is fixedly connected to the outer side of the rotating rod 12.

[0031] As a technical optimization of this utility model, by setting the rotating block 21, it is easier for the user to rotate the rotating rod 12, and the user can avoid slipping when directly rotating the rotating rod 12.

[0032] refer to Figure 3A rubber pad 22 is provided at the bottom of the support rod 9, and the top of the rubber pad 22 is attached to the bottom of the protective plate 10.

[0033] As a technical optimization of this utility model, by setting the rubber pad 22, the bottom of the protective plate 10 can be protected to prevent the bottom of the protective plate 10 from directly contacting the ground and being damaged.

[0034] The working principle and usage process of this utility model are as follows: First, the damping spring 8 is fitted onto the surfaces of the first limiting rod 5 and the second limiting rod 7. After fitting, the bottom of the damping spring 8 and the bottom of the support plate 4 are welded to the top of the moving plate 6 using a welding torch. After welding, the top of the support plate 4 is inserted into the guide sleeve 2, and the protective plate 10 is pushed upwards, causing the first limiting rod 5, damping spring 8, second limiting rod 7, and moving plate 6 to move completely into the guide sleeve 2. After insertion, the protective sleeve 3 is passed through the protective plate 10 and the support rod 9 and fitted onto the bottom of the guide sleeve 2 to limit the movement of the moving plate 6. The user rotates the rotating block 21, which drives the rotating rod 12 and the turntable 13 to rotate. The turntable 13 drives the traction rod 14 to rotate. When the traction rod 14 rotates, it pulls the pull rod 15 and the push plate 16 to move inward. The push plate 16 drives the connecting plate 17 and the clamping plate 18 to move inward, so that the clamping plate 18 is clamped at the bottom of the protective sleeve 3 to fix the protective sleeve 3. Finally, when the drone 1 lands, the protective plate 10 contacts the ground and pushes the support rod 9 and the moving plate 6 to move upward. The moving plate 6 drives the second limit rod 7 and the damping spring 8 to move upward. The damping spring 8 cancels out the collision force generated between the protective plate 10 and the ground through its own elasticity.

[0035] In summary, this buffer structure for the drone, through the inclusion of a support plate 4, a first limiting rod 5, a damping spring 8, a second limiting rod 7, and a moving plate 6, effectively dampens the landing gear, preventing damage to the landing gear and the drone 1 from collision vibrations. The protective sleeve 3 limits the movement of the moving plate 6, preventing it from detaching from the guide sleeve 2. The transmission box 11, rotating rod 12, turntable 13, traction rod 14, pull rod 15, push plate 16, connecting plate 17, and clamping plate 18 secure the protective sleeve 3, improving its stability. This provides excellent buffering and addresses the issue that most drone landing gears are fixed to the bottom, causing collisions with the ground during landings, which can damage internal components and reduce drone performance due to repeated impacts.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone with a buffer structure, comprising drone (1); Its features ; The front and rear sides of the bottom of the drone (1) are fixedly connected to guide sleeves (2). The bottom of the guide sleeve (2) is fitted with a protective sleeve (3). The top of the inner wall of the guide sleeve (2) is slidably connected to a support plate (4). The bottom of the support plate (4) is fixedly connected to multiple first limiting rods (5). The bottom of the inner wall of the guide sleeve (2) is slidably connected to a moving plate (6). The top of the moving plate (6) is fixedly connected to multiple second limiting rods (7). The surface of the first limiting rod (5) is fitted with a damping spring (8). The top of the damping spring (8) is fixedly connected to the bottom of the support plate (4). The bottom of the damping spring (8) is fitted on the surface of the second limiting rod (7) and fixedly connected to the top of the moving plate (6). The bottom of the moving plate (6) is fixedly connected to two support rods (9). The bottom of the support rods (9) extends through to the bottom of the guide sleeve (2) and is fixedly connected to a protective plate (10).

2. The UAV with a buffer structure according to claim 1, characterized in that: A transmission box (11) is fixedly connected to the outer side of the guide sleeve (2). A rotating rod (12) is provided on the outer side of the transmission box (11). The inner side of the rotating rod (12) extends into the interior of the transmission box (11) and is movably connected to the outer side of the guide sleeve (2) through a bearing. A turntable (13) is fixedly connected to the surface of the rotating rod (12). A traction rod (14) is fixedly connected to the top and bottom of the outer side of the turntable (13). A pull rod (15) is sleeved on the surface of the traction rod (14). A push plate (16) is connected to the end of the pull rod (15) away from the traction rod (14) through a pin. A connecting plate (17) is fixedly connected to the outer side of the push plate (16). A clamping plate (18) is fixedly connected to the end of the connecting plate (17) away from the push plate (16). A clamping plate (18) is fixedly connected to the bottom of the protective sleeve (3).

3. The UAV with a buffer structure according to claim 2, characterized in that: A torsion spring (19) is fitted on the surface of the rotating rod (12). The outer side of the torsion spring (19) is fixedly connected to the inner wall of the transmission box (11), and the inner side of the torsion spring (19) is fixedly connected to the outer side of the turntable (13).

4. A drone with a buffer structure according to claim 2, characterized in that: Guide rods (20) are fixedly connected laterally on both sides of the inner wall of the transmission box (11). The end of the guide rod (20) away from the transmission box (11) passes through the push plate (16) and is slidably connected to the push plate (16).

5. A drone with a buffer structure according to claim 2, characterized in that: A rotating block (21) is provided on the outside of the transmission box (11), and the inner side of the rotating block (21) is fixedly connected to the outer side of the rotating rod (12).

6. The UAV with a buffer structure according to claim 1, characterized in that: A rubber pad (22) is provided at the bottom of the support rod (9), and the top of the rubber pad (22) is attached to the bottom of the protective plate (10).