Undercarriage with high stability for unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly discloses a high-stability landing gear for an unmanned aerial vehicle, which comprises a shell body, a buffer mechanism and a support mechanism, the buffering mechanism comprises a buffering sliding plate and a buffering assembly, a mounting groove is formed in the lower surface of the shell body, the buffering sliding plate is slidably mounted in the mounting groove in the vertical direction, and the buffering assembly is located in the mounting groove so that buffering can be achieved through sliding of the buffering sliding plate; the supporting mechanism comprises an adjusting assembly and two damping supports, one ends of the two damping supports are rotationally connected with the buffering sliding plate, and the adjusting assembly is located between the two damping supports so as to drive the other ends of the two damping supports to get close to each other or get away from each other. Through the structural design, the impact force generated during landing of the unmanned aerial vehicle can be effectively absorbed, the damage of the impact force to the internal structure of the unmanned aerial vehicle is reduced, and the service life of the unmanned aerial vehicle is prolonged.

Description

Technical Field

[0001] This application belongs to the field of unmanned aerial vehicle (UAV) technology, and more specifically, relates to a landing gear for UAVs with high stability. Background Technology

[0002] As a high-tech flying device, drones are widely used in many fields such as agricultural plant protection, aerial photography and mapping, logistics transportation, and emergency rescue. The drone landing gear, a key component mounted on the bottom of the drone, is primarily used to support and move it. Its core function is to ensure the stability and safety of the drone during takeoff, landing, and taxiing. Through careful structural design and material selection, the landing gear can provide reliable support and protection for drones in various complex terrains and harsh environments. In addition to its basic support function, the landing gear also prevents the drone from directly contacting the ground when parked, thus avoiding damage caused by uneven ground.

[0003] When existing drones land, the drone body makes direct contact with the ground through the landing gear, lacking effective cushioning and shock absorption structures. Since drones typically have a certain weight and experience high descent speeds during landing, a significant impact force is generated upon landing. This impact force is directly transmitted to the drone's internal structure, causing damage and ultimately rendering the drone malfunctioning. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a highly stable landing gear for unmanned aerial vehicles (UAVs), aiming to solve the problem that existing UAV landing gears lack cushioning and shock absorption functions during landing, causing the landing impact force to be transmitted to the interior, damaging the structure and affecting normal operation.

[0005] This application provides a highly stable landing gear for unmanned aerial vehicles (UAVs), specifically comprising a shell body, a buffer mechanism, and a support mechanism. The buffer mechanism includes a buffer slide plate and a buffer assembly. The lower surface of the shell body has a mounting groove, and the buffer slide plate is slidably installed in the mounting groove in a vertical direction. The buffer assembly is located in the mounting groove to buffer the sliding of the buffer slide plate. The support mechanism includes an adjustment assembly and two shock-absorbing brackets. One end of each of the two shock-absorbing brackets is rotatably connected to the buffer slide plate. The adjustment assembly is located between the two shock-absorbing brackets to drive the other ends of the two shock-absorbing brackets to move closer to or further away from each other.

[0006] Compared with the prior art, the landing gear of this UAV, equipped with a buffer mechanism and a support mechanism, improves the stability of the UAV during landing. The cooperation between the buffer plate and the buffer components effectively absorbs the impact force generated during landing, thereby minimizing the damage to the internal precision structure of the UAV, significantly extending the service life of the UAV and reducing maintenance costs. In addition, the dynamic adjustment function of the shock-absorbing bracket and adjustment components in the support mechanism allows it to flexibly adapt to various complex terrains and landing conditions, greatly enhancing the environmental adaptability of the landing gear. This landing gear is not only compact and rationally laid out, but also achieves efficient buffering and stable support for the UAV during landing through optimized design, providing a solid guarantee for the safe operation and efficient work of the UAV, and improving the reliability and practicality of the UAV in diverse application scenarios.

[0007] As a further preferred embodiment, the buffer assembly includes a plurality of columns and a damper, wherein the plurality of columns are vertically fixedly connected to the upper surface of the buffer slide plate, and the damper is fixedly connected to the top of the columns.

[0008] As a further preferred embodiment, the buffer assembly further includes a plurality of positioning sleeves, which are fixedly connected to the inner wall of the mounting groove and located on the same axis as the column, and the column extends into the interior of the positioning sleeves.

[0009] As a further preferred embodiment, the column is fitted to the inner wall of the positioning sleeve, and the side wall of the positioning sleeve is provided with a plurality of first through holes.

[0010] As a further preferred embodiment, the inner diameter of the positioning sleeve is larger than the outer diameter of the column, and the buffer assembly further includes a buffer spring and a positioning plate. The positioning plate is fixedly connected to the column and its periphery is in contact with the inner wall of the positioning sleeve. A second through hole is provided on the positioning plate, and the buffer spring is coaxially sleeved on the column and located between the positioning plate and the positioning sleeve.

[0011] As a further preferred embodiment, the adjustment assembly includes a mounting frame, a movable plate, a driving component, and two connecting plates. The mounting frame is fixedly connected to the bottom of the buffer slide plate. The movable plate is slidably connected to the mounting frame in a vertical direction. One end of the connecting plate is hinged to the movable plate, and the other end is hinged to the corresponding shock-absorbing bracket. The driving component is mounted on the mounting frame to drive the movable plate to slide.

[0012] As a further preferred embodiment, the mounting bracket is a hollow frame structure.

[0013] As a further preferred embodiment, the driving component includes a motor and a threaded rod. The motor is vertically fixedly connected to the mounting bracket, and the threaded rod is coaxially fixedly connected to the output shaft of the motor. The threaded rod passes through the movable plate and is threadedly connected to the movable plate.

[0014] As a further preferred embodiment, both of the shock-absorbing brackets have a buffer pad fixedly connected to their bottoms.

[0015] As a further preferred embodiment, the outer casing body is provided with a plurality of mounting portions evenly distributed around its periphery, and each of the mounting portions is provided with mounting holes.

[0016] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:

[0017] 1. The landing gear for UAVs in this application is designed with a buffer mechanism, which achieves efficient buffering and shock absorption. The column, damper, positioning sleeve, buffer spring and positioning plate in the buffer assembly work together to effectively absorb the impact force generated when the UAV lands. The impact energy is further dispersed by the elastic deformation of the spring and the damping effect of the damper. This design significantly reduces the damage of the impact force to the internal structure of the UAV and extends the service life of the UAV.

[0018] 2. The landing gear for the UAV in this application is designed with a support mechanism that can be dynamically adjusted according to different landing conditions and terrains. The adjustment component drives the movable plate to slide through a motor and threaded rod, thereby driving the shock-absorbing bracket to unfold or retract, realizing flexible adjustment of the support angle and width. This design enables the landing gear to adapt to various complex landing scenarios, maintaining a stable support state whether on flat ground or rugged terrain, thus enhancing the adaptability and reliability of the UAV in diverse environments.

[0019] 3. The overall design of the landing gear in this application emphasizes the compactness and reliability of the structure. The mounting bracket adopts a hollow frame structure, which reduces weight while ensuring sufficient strength. The buffer pad at the bottom of the shock-absorbing bracket further enhances the shock absorption effect, while the mounting parts and mounting holes on the periphery of the outer shell facilitate the connection and fixation of the landing gear to the UAV body. This optimized design not only improves the overall performance of the landing gear, but also makes it lighter and easier to install, providing a solid guarantee for the efficient operation of the UAV. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the landing gear for a drone from a first-view perspective, provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the overall structure of the landing gear for a drone from a second-view perspective, provided in an embodiment of this application.

[0022] Figure 3 This is a partial cross-sectional view of the landing gear for a drone provided in an embodiment of this application.

[0023] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0024] 1. Outer shell; 11. Mounting slot; 12. Mounting part; 13. Mounting hole; 2. Buffer mechanism; 21. Buffer slide plate; 22. Buffer assembly; 221. Column; 222. Damper; 223. Positioning sleeve; 224. Buffer spring; 225. Positioning plate; 3. Support mechanism; 31. Adjustment assembly; 311. Mounting bracket; 312. Movable plate; 313. Connecting plate; 314. Motor; 315. Threaded rod; 32. Shock absorber bracket; 33. Buffer pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] Reference Figures 1-3 This application discloses a highly stable landing gear for unmanned aerial vehicles (UAVs), comprising a shell body 1, a buffer mechanism 2, and a support mechanism 3. The shell body 1 has several mounting portions 12 evenly distributed around its periphery. The shell body 1 can be designed as a rectangular or circular structure. The mounting portions 12 are integrally formed with the shell body. Each mounting portion 12 has mounting holes 13. Screws are passed through the mounting holes 13 to horizontally fix the shell body 1 to the UAV body. After the UAV lands, it is supported by the support mechanism 3, and the buffer mechanism 2 reduces the impact force received by the UAV during landing, effectively dispersing and mitigating the impact force transmitted to the UAV body. This reduces the impact of ground impact on the UAV, achieving a buffering and shock absorption effect. Through the above operations, excellent buffering and shock absorption functions are achieved, preventing damage to the internal structure of the UAV from strong impacts and ensuring the integrity of the internal structure, thus guaranteeing the normal use of the UAV after each high-altitude landing.

[0027] In this embodiment, the buffer mechanism 2 includes a buffer slide plate 21 and a buffer assembly 22. The lower surface of the outer shell body 1 is provided with a mounting groove 11. The buffer slide plate 21 is slidably installed in the mounting groove 11 in the vertical direction. The buffer assembly 22 is located in the mounting groove 11 so that the sliding of the buffer slide plate 21 can achieve buffering. The cooperation between the buffer slide plate 21 and the buffer assembly 22 can effectively absorb the impact force generated during landing, thereby minimizing the damage to the internal precision structure of the UAV.

[0028] Specifically, the buffer assembly 22 includes several columns 221 and dampers 222. The columns 221 are all vertically fixed to the upper surface of the buffer slide plate 21 and are evenly distributed. The dampers 222 are fixedly connected to the top of the columns 221. When the buffer slide slides upward and contacts the inner wall of the mounting groove 11, the dampers 222 play a buffering role on the sliding of the buffer slide plate 21.

[0029] Furthermore, to improve the sliding stability of the buffer slide plate 21, the buffer assembly 22 also includes a plurality of positioning sleeves 223. The number of positioning sleeves 223 is the same as the number of columns 221. The positioning sleeves 223 are fixedly connected to the inner wall of the mounting groove 11 and are located on the same axis as the columns 221 on the buffer slide plate 21. The columns 221 extend into the interior of the positioning sleeves 223. The damper 222 is fixedly connected to the inner wall of the positioning sleeve 223. In a feasible embodiment, the columns 221 are fitted against the inner wall of the positioning sleeves 223 to limit the sliding of the columns 221, thereby improving the sliding stability of the buffer slide plate 21. A plurality of gas flow channels are provided on the side wall of the positioning sleeves 223. The first perforation is to prevent air pressure from affecting the sliding of the buffer slide plate 21. In this embodiment, the buffer assembly 22 also includes a buffer spring 224 and a positioning plate 225. The positioning plate 225 is fixedly connected to the column 221 and the periphery of the positioning plate 225 is in contact with the inner wall of the positioning sleeve 223. The positioning plate 225 has several second perforations that allow gas flow. The buffer spring 224 is coaxially sleeved on the column 221 and located between the positioning plate 225 and the positioning sleeve 223. The overall structure formed by the column 221 and the positioning plate 225 slides in the positioning sleeve 223, improving the sliding stability of the buffer slide plate 21. The second spring can further buffer the sliding of the buffer slide plate 21.

[0030] In this embodiment, the support mechanism 3 includes an adjustment component 31 and two shock absorber brackets 32. One end of each shock absorber bracket 32 ​​is rotatably connected to the buffer slide plate 21. The two shock absorber brackets 32 are arranged symmetrically from left to right. The adjustment component 31 is located between the two shock absorber brackets 32 to drive the other ends of the two shock absorber brackets 32 to move closer or further apart from each other. The dynamic adjustment function of the shock absorber brackets 32 and the adjustment component 31 enables them to flexibly adapt to various complex terrains and landing conditions, greatly enhancing the environmental adaptability of the landing gear. Rubber buffer pads 33 are fixedly connected to the bottom of each of the two shock absorber brackets 32. After the UAV completes high-altitude operations, the UAV is gradually lowered until it contacts the ground. Then, the shock absorber brackets 32 and the buffer pads 33 first contact the ground and bear the impact force from the ground. The buffer pads 33 absorb part of the impact force with their elasticity and deformation capacity, achieving an effective buffering effect.

[0031] More specifically, the adjustment assembly 31 includes a mounting frame 311, a movable plate 312, a driving component, and two connecting plates 313. The mounting frame 311 is fixedly connected to the bottom of the buffer slide plate 21, and the mounting frame 311 is set as a hollow frame structure, which reduces weight and ensures sufficient strength. The movable plate 312 is located inside the mounting frame 311 and is slidably connected to the mounting frame 311 in the vertical direction. One end of the connecting plate 313 is hinged to the movable plate 312, and the other end is hinged to the corresponding shock absorber bracket 32. The hinge axes at both ends of the connecting plate 313 are parallel to the rotation axis of the shock absorber bracket 32. The driving component is installed on the mounting frame 311 to drive the movable plate 312 to slide. When the movable plate 312 slides up and down, it can simultaneously drive the two shock absorber brackets 32 to rotate through the connecting plates 313 on both sides.

[0032] Furthermore, the driving components include a motor 314 and a threaded rod 315. The motor 314 is vertically fixed to the mounting bracket 311, and the threaded rod 315 is coaxially fixed to the output shaft of the motor 314 via a coupling. The threaded rod 315 passes through a movable plate 312 and is threadedly connected to the movable plate 312. When the motor 314 is started, it drives the threaded rod 315 to rotate, which in turn drives the movable plate 312 to move up and down. The movable plate 312 then drives the two connecting plates 313 to move up and down, and the two connecting plates 313 drive the two shock-absorbing brackets 32 to rotate. This allows the drone to adjust its altitude to suit different work requirements. Through the above operations, operators can easily adjust the overall altitude of the drone to adapt to different terrains and working environments, maintaining stability and adaptability during operation.

[0033] A specific application of this embodiment is as follows: When using the device, it is first installed on the bottom of the drone, then the drone is started for high-altitude operations. After the operation is completed, the drone is gradually lowered until it contacts the ground. Then, the shock-absorbing bracket 32 ​​and the buffer pad 33 first contact the ground to withstand the impact force from the ground. The buffer pad 33 absorbs part of the impact force due to its elasticity and deformation capacity, achieving an effective buffering effect. The remaining impact force is then transmitted to the shock-absorbing bracket 32, which pushes the buffer slide plate 21 and the column 221 to move upward. At the same time, the column 221 drives the positioning plate 225 to compress the buffer spring 224 upward, causing deformation, and further activating the damper 222. The friction between the positioning plate 225 and the positioning sleeve 223 slows down the transmission of impact energy. The damper 222 reduces the propagation speed of the impact force through its damping effect, ensuring that the energy is absorbed gradually and smoothly. The reaction force generated by the buffer spring 224 after being compressed effectively disperses and alleviates the impact force transmitted to the UAV body, thereby reducing the impact of ground impact force on the UAV and achieving the effect of buffering and shock absorption. Through the above operations, a good buffering and shock absorption function is achieved, avoiding damage to the internal structure of the UAV due to strong impact, ensuring the integrity of the internal structure of the UAV, and thus ensuring the normal use of the UAV after each high-altitude operation landing.

[0034] In addition, when using this device, the motor 314 is started first to drive the threaded rod 315 to rotate. The threaded rod 315 drives the movable plate 312 to move up and down. The movable plate 312 drives the two connecting plates 313 to rotate the shock-absorbing bracket 32. By starting the motor 314 in both directions, the drone can be adjusted in altitude to meet work requirements. Through the above operations, the operator can easily adjust the overall altitude of the drone to adapt to different terrains and working environments, and maintain stability and adaptability during operation.

[0035] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0036] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A highly stable landing gear for unmanned aerial vehicles (UAVs), characterized in that, It includes the outer shell (1), the buffer mechanism (2), and the support mechanism (3); The buffer mechanism (2) includes a buffer slide plate (21) and a buffer assembly (22). The lower surface of the outer shell body (1) is provided with a mounting groove (11). The buffer slide plate (21) is slidably installed in the mounting groove (11) in the vertical direction. The buffer assembly (22) is located in the mounting groove (11) so that the sliding of the buffer slide plate (21) can achieve buffering. The support mechanism (3) includes an adjustment component (31) and two shock absorber brackets (32). One end of each of the two shock absorber brackets (32) is rotatably connected to the buffer slide plate (21). The adjustment component (31) is located between the two shock absorber brackets (32) to drive the other ends of the two shock absorber brackets (32) to move closer to or further away from each other.

2. The highly stable landing gear for unmanned aerial vehicles as described in claim 1, characterized in that, The buffer assembly (22) includes several columns (221) and a damper (222). The columns (221) are vertically fixed to the upper surface of the buffer slide plate (21), and the damper (222) is fixedly connected to the top of the columns (221).

3. The highly stable landing gear for unmanned aerial vehicles as described in claim 2, characterized in that, The buffer assembly (22) also includes a plurality of positioning sleeves (223), which are fixedly connected to the inner wall of the mounting groove (11) and are located on the same axis as the column (221), and the column (221) extends into the interior of the positioning sleeves (223).

4. The highly stable landing gear for unmanned aerial vehicles as described in claim 3, characterized in that, The column (221) is fitted to the inner wall of the positioning sleeve (223), and a plurality of first through holes are provided on the side wall of the positioning sleeve (223).

5. A highly stable landing gear for unmanned aerial vehicles as described in claim 3, characterized in that, The inner diameter of the positioning sleeve (223) is larger than the outer diameter of the column (221). The buffer assembly (22) also includes a buffer spring (224) and a positioning plate (225). The positioning plate (225) is fixedly connected to the column (221) and its periphery is in contact with the inner wall of the positioning sleeve (223). A second through hole is provided on the positioning plate (225). The buffer spring (224) is coaxially sleeved on the column (221) and located between the positioning plate (225) and the positioning sleeve (223).

6. The highly stable landing gear for unmanned aerial vehicles as described in claim 1, characterized in that, The adjustment assembly (31) includes a mounting frame (311), a movable plate (312), a driving component, and two connecting plates (313). The mounting frame (311) is fixedly connected to the bottom of the buffer slide plate (21). The movable plate (312) is slidably connected to the mounting frame (311) in the vertical direction. One end of the connecting plate (313) is hinged to the movable plate (312), and the other end is hinged to the corresponding shock absorber bracket (32). The driving component is mounted on the mounting frame (311) to drive the movable plate (312) to slide.

7. A highly stable landing gear for a drone as described in claim 6, characterized in that, The mounting bracket (311) is a hollow frame structure.

8. A highly stable landing gear for a drone as described in claim 6, characterized in that, The driving component includes a motor (314) and a threaded rod (315). The motor (314) is vertically fixed to the mounting bracket (311), and the threaded rod (315) is coaxially fixed to the output shaft of the motor (314). The threaded rod (315) passes through the movable plate (312) and is threadedly connected to the movable plate (312).

9. A highly stable landing gear for a drone as described in claim 1, characterized in that, Both shock-absorbing brackets (32) have a buffer pad (33) fixedly connected to their bottoms.

10. A highly stable landing gear for a drone as described in claim 1, characterized in that, The outer shell body (1) is provided with a plurality of mounting portions (12) evenly distributed around its periphery, and each of the mounting portions (12) is provided with mounting holes (13).

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