Unmanned aerial vehicle undercarriage with buffer structure
The UAV landing gear with a buffer structure addresses the issue of impact force absorption and storage space by using dampers and springs, ensuring safety and portability.
Patent Information
- Application Number
- CN202421093077.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Traditional UAV landing gear made of hard materials fails to effectively alleviate impact forces during landing, leading to potential damage to the UAV body or sensor failure, especially in complex environments or high-speed landings.
A UAV landing gear with a buffer structure incorporating dampers, springs, and folding mechanisms to absorb and mitigate landing impacts, featuring a design that can be folded for convenient storage.
The buffer structure effectively reduces impact forces, protecting the UAV and its payload while allowing for compact storage and transportation, enhancing safety and portability.
Smart Images
Figure CN222202940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of unmanned aerial vehicles, in particular to a landing gear of an unmanned aerial vehicle with a buffer structure. Background Art
[0002] With the widespread application of drones in various fields, the requirements for their landing gear are becoming increasingly stringent. The drone landing gear with a buffer structure can not only reduce the damage to the drone body caused by landing impact, but also protect the payload equipment, ensuring the stability and reliability of data collection and mission execution. The drone landing gear with a buffer structure further expands the application field of drones to more complex and challenging environments, providing new possibilities for the development and application of drone technology.
[0003] Traditional UAV landing gear is usually made of aluminum alloy, carbon fiber composite materials and steel. The selection of these materials meets the requirements of lightweight, strength and durability of the balanced landing gear to ensure that the UAV can perform tasks safely and stably during takeoff and landing. It is responsible for supporting the overall weight of the UAV. During ground operations and takeoff, the landing gear can firmly support the entire aircraft to ensure that the aircraft moves and docks smoothly on the ground.
[0004] However, traditional UAV landing gear is usually made of hard materials. Such a design can meet the needs in a smooth landing scenario, but when facing complex environments or high-speed landing, the rigid landing gear often cannot effectively alleviate the impact force caused by the landing impact, which can easily cause damage to the UAV body or sensor failure. Therefore, a UAV landing gear with a buffer structure is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a UAV landing gear with a buffer structure, aiming to improve the problem that traditional UAV landing gear is usually made of hard materials, and the rigid landing gear cannot effectively alleviate the impact force caused by the landing impact, which can easily cause damage to the UAV body or failure of the sensor.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a drone landing gear with a buffer structure, comprising an upper frame, a damper 1 is fixedly connected to the bottom of the upper frame, the other end of the damper 1 is fixedly connected to the lower frame, the bottom of the damper 1 is fixedly connected to a spring 1, the other end of the spring 1 is fixedly connected to the top of the lower frame, a slide groove is provided inside the lower frame, a damper 2 is fixedly connected inside the lower frame, one end of the damper 2 is fixedly connected to the inside of the slide groove, the other end of the damper 2 is fixedly connected to a slider 1, both sides of the outer wall of the slider 1 are slidably connected to the inside of the slide groove, a rotating column 1 is fixedly connected to the top of the slider 1, the outer wall of the rotating column 1 is rotatably connected to a transmission rod 1, the top of the transmission rod 1 is rotatably connected to a rotating column 2, the outer wall of the rotating column 2 is fixedly connected to the bottom of the upper frame, and a folding component is arranged inside the upper frame;
[0007] As a further description of the above technical solution: the folding assembly includes a folding rod 1 and a folding rod 2, the top and bottom of the folding rod 1 are both slidably connected to the inside of the folding rod 2, and the tops and bottoms of the folding rod 1 and the folding rod 2 are both slidably connected to the inside of the upper frame;
[0008] As a further description of the above technical solution: the folding rod 1 is fixedly connected to the rotating column 3 inside, and the folding rod 2 is rotatably connected to the outer wall of the rotating column 3 inside;
[0009] As a further description of the above technical solution: a fixing plate is fixedly connected to the top of the second folding rod, and a limiting hole is provided inside the upper frame;
[0010] As a further description of the above technical solution: a slider 2 is slidably connected inside the upper frame, and a rotating disk is rotatably connected inside the slider 2;
[0011] As a further description of the above technical solution: a rotating shaft is fixedly connected to one side of the outer wall of the rotating disk, and a second transmission rod is slidably connected to the outer wall of the rotating shaft;
[0012] As a further description of the above technical solution: the top of the second transmission rod is rotatably connected to a connecting column, and the top of the connecting column is fixedly connected to a limiting column;
[0013] As a further description of the above technical solution: a second spring is fixedly connected to the bottom of the limiting column, one end of the second spring is fixedly connected to the inside of the second slider, and the outer wall of the limiting column is slidably connected to the inside of the limiting hole.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, through the cooperation among the damper 1, the spring 1, the upper frame, the lower frame, the damper 2, the slider 1 and the transmission rod 1, the effect of effectively absorbing and mitigating the impact force generated during landing is achieved when the UAV lands. This solves the problem that the traditional UAV landing gear is usually made of hard materials, and the rigid landing gear cannot effectively alleviate the impact force caused by the landing impact, which easily leads to damage to the UAV body or failure of the sensor, thereby improving the safety of the UAV.
[0016] 2. In the utility model, through the cooperation between the folding rod 1, the folding rod 2, the rotating column 3, the sliding block 2, the rotating disk, the transmission rod 2, the connecting column and the limiting column, the landing gear can be folded when not in use for convenient storage, which solves the problem that the traditional landing gear occupies a large space when carried or stored, which may increase the difficulty and cost of operation, and improves portability. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a three-dimensional schematic diagram of a UAV landing gear with a buffer structure proposed by the utility model;
[0018] Figure 2 This is a structural schematic diagram of a damper 2 of a UAV landing gear with a buffer structure proposed by the utility model;
[0019] Figure 3 This is a structural schematic diagram of a transmission rod 2 of a UAV landing gear with a buffer structure proposed by the utility model.
[0020] Legend:
[0021] 1. Upper frame; 2. Damper 1; 3. Spring 1; 4. Lower frame; 5. Damper 2; 6. Slider 1; 7. Rotating column 1; 8. Transmission rod 1; 9. Rotating column 2; 10. Slide; 11. Folding rod 1; 12. Folding rod 2; 13. Fixed plate; 14. Rotating column 3; 15. Slider 2; 16. Rotating plate; 17. Rotating shaft; 18. Transmission rod 2; 19. Connecting column; 20. Spring 2; 21. Limit column; 22. Limit hole. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a UAV landing gear with a buffer structure, including an upper frame 1, a damper 2 is fixedly connected to the bottom of the upper frame 1, the other end of the damper 2 is fixedly connected to the lower frame 4, the bottom of the damper 2 is fixedly connected to a spring 3, the other end of the spring 3 is fixedly connected to the top of the lower frame 4, a slide groove 10 is opened inside the lower frame 4, a damper 2 5 is fixedly connected inside the lower frame 4, one end of the damper 25 is fixedly connected to the inside of the slide groove 10, and the other end of the damper 25 is fixedly connected to a slider 6, both sides of the outer wall of the slider 6 are slidably connected to the inside of the slide groove 10, a rotating column 7 is fixedly connected to the top of the slider 6, the outer wall of the rotating column 7 is rotatably connected to a transmission rod 18, the top of the transmission rod 8 is rotatably connected to a rotating column 29, the outer wall of the rotating column 29 is fixedly connected to the bottom of the upper frame 1, and a folding component is arranged inside the upper frame 1;
[0024] Specifically, when using the UAV landing gear with a buffer structure, the UAV is first fixed on the fixed plate 13, and then when the UAV lands, the lower frame 4 first contacts the ground, and as the UAV continues to land, the damper 2 and the transmission rod 8 are squeezed. At this time, the damper 2 absorbs and disperses the impact force generated by the landing, and when the transmission rod 8 is squeezed, the slider 6 is driven to squeeze the damper 2 5, and then the damper 2 5 absorbs and decomposes the impact force until the UAV lands. When the UAV lands, this structure can effectively protect the various load equipment carried by the UAV from damage. UAVs often carry valuable sensors, cameras or other scientific instruments, which are crucial to mission execution. This structure can reduce the vibration and impact of these devices to ensure their normal operation and data collection.
[0025] Reference Figure 1 - Figure 3 The folding assembly includes a folding rod 11 and a folding rod 12. The top and bottom of the folding rod 11 are slidably connected inside the folding rod 12. The top and bottom of the folding rod 11 and the folding rod 12 are slidably connected inside the upper frame 1.
[0026] Specifically, when the UAV landing gear with a buffer structure is used, the folding rod 1 11 and the folding rod 2 12 can support it to ensure normal operation. When folding is required, the landing gear can be folded and stored by rotating the folding rod 1 11 and the folding rod 2 12.
[0027] Reference Figure 1 - Figure 3, the folding rod 11 is fixedly connected with a rotating column 3 14 inside, the folding rod 2 12 is rotatably connected to the outer wall of the rotating column 3 14 inside, the top of the folding rod 2 12 is fixedly connected with a fixed disk 13, a limiting hole 22 is provided inside the upper frame 1, a slider 2 15 is slidably connected inside the upper frame 1, the slider 2 15 is rotatably connected with a rotating disk 16 inside, a rotating shaft 17 is fixedly connected to one side of the outer wall of the rotating disk 16, the outer wall of the rotating shaft 17 is slidably connected with a transmission rod 2 18, the top of the transmission rod 2 18 is rotatably connected with a connecting column 19, the top of the connecting column 19 is fixedly connected to a limiting column 21, the bottom of the limiting column 21 is fixedly connected with a spring 20, one end of the spring 20 is fixedly connected to the inside of the slider 2 15, and the outer wall of the limiting column 21 is slidably connected to the inside of the limiting hole 22;
[0028] Specifically, when it is necessary to fold and stow the landing gear of the UAV with a buffer structure, first rotate the rotating disk 16 on the slider 2 15, and then the rotating disk 16 drives the transmission rod 2 18 to move, and then the transmission rod 2 18 drives the connecting column 19 to move downward, and then the connecting column 19 drives the limit column 21 to move downward to release the limit. At this time, push the slider 2 15 to both sides, and then the slider 2 15 drives the folding rod 1 11 and the folding rod 2 12 to move to fold the landing gear. The landing gear can effectively reduce the space occupied by the UAV during storage, transportation and deployment, which is particularly important for applications that require frequent carrying or storage of UAVs, and can save storage and transportation costs.
[0029] Working principle: When using the UAV landing gear with a buffer structure, first connect the fixed plate 13 to the bottom of the UAV. After the connection is completed, when the UAV lands, the lower frame 4 contacts the ground first, and then when the UAV continues to fall, the force at this time is first absorbed and dispersed by the damper 2, and as it continues to fall, the upper frame 1 moves downward, and then squeezes the transmission rod 8, and the transmission rod 8 drives the slider 6 to move. The transmission rod 8 transmits the force to the damper 2 5, and then the damper 2 5 begins to absorb and disperse the remaining force until the UAV lands and the landing gear completes the shock absorption work. When the landing gear needs to be folded, first rotate the rotating plate 16, and then the rotating plate 16 drives the transmission rod 2 18 to move, and the transmission rod 2 18 will drive the connecting column 19 to move downward. With the displacement of the connecting column 19, the limit column 21 is driven to move downward, and then the limit on the upper frame 1 is released. At this time, the sliders 2 15 are slid respectively, and then the sliders 2 15 drive the folding rods 11 and folding rods 2 12 to move, completing the folding of the landing gear.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A UAV landing gear with a buffer structure, comprising an upper frame (1), characterized in that: The bottom of the upper frame (1) is fixedly connected to a damper 1 (2), the other end of the damper 1 (2) is fixedly connected to a lower frame (4), the bottom of the damper 1 (2) is fixedly connected to a spring 1 (3), the other end of the spring 1 (3) is fixedly connected to the top of the lower frame (4), a slide groove (10) is provided inside the lower frame (4), a damper 2 (5) is fixedly connected inside the lower frame (4), one end of the damper 2 (5) is fixedly connected inside the slide groove (10), The other end of the damper 2 (5) is fixedly connected to a slider 1 (6), both sides of the outer wall of the slider 1 (6) are slidably connected to the inside of the slide groove (10), the top of the slider 1 (6) is fixedly connected to a rotating column 1 (7), the outer wall of the rotating column 1 (7) is rotatably connected to a transmission rod 1 (8), the top of the transmission rod 1 (8) is rotatably connected to a rotating column 2 (9), the outer wall of the rotating column 2 (9) is fixedly connected to the bottom of the upper frame (1), and a folding component is arranged inside the upper frame (1).
2. The UAV landing gear with a buffer structure according to claim 1, characterized in that: The folding assembly comprises a folding rod 1 (11) and a folding rod 2 (12), the top and bottom of the folding rod 1 (11) are both slidably connected inside the folding rod 2 (12), and the top and bottom of the folding rod 1 (11) and the folding rod 2 (12) are both slidably connected inside the upper frame (1).
3. The UAV landing gear with a buffer structure according to claim 2, characterized in that: The folding rod one (11) is fixedly connected to a rotating column three (14) inside, and the folding rod two (12) is rotatably connected to the outer wall of the rotating column three (14) inside.
4. The UAV landing gear with a buffer structure according to claim 3, characterized in that: A fixing plate (13) is fixedly connected to the top of the second folding rod (12), and a limiting hole (22) is provided inside the upper frame (1).
5. The UAV landing gear with a buffer structure according to claim 4, characterized in that: The upper frame (1) is slidably connected to a second slider (15) inside, and the second slider (15) is rotatably connected to a rotating disk (16) inside.
6. The UAV landing gear with a buffer structure according to claim 5, characterized in that: A rotating shaft (17) is fixedly connected to one side of the outer wall of the rotating disk (16), and a second transmission rod (18) is slidably connected to the outer wall of the rotating shaft (17).
7. The UAV landing gear with a buffer structure according to claim 6, characterized in that: The top of the second transmission rod (18) is rotatably connected to a connecting column (19), and the top of the connecting column (19) is fixedly connected to a limiting column (21).
8. The UAV landing gear with a buffer structure according to claim 7, characterized in that: A second spring (20) is fixedly connected to the bottom of the limiting column (21), one end of the second spring (20) is fixedly connected to the inside of the second slider (15), and the outer wall of the limiting column (21) is slidably connected to the inside of the limiting hole (22).