A drone landing gear

Abstract

This utility model discloses a landing gear for a drone, including a fixed frame. A fixed lug is fixedly connected to the lower surface of the fixed frame. A first connecting rod is rotatably connected to the inner side wall of the fixed lug. A sleeve is fixedly connected to one end of the first connecting rod. A first fixed sleeve is fixedly connected to the surface of the sleeve. A third connecting rod is rotatably connected to the side wall of the first fixed sleeve. A second connecting rod is rotatably connected to the bottom of the fixed frame. One end of the second connecting rod is rotatably connected to one end of the third connecting rod. This utility model drives the first connecting rod with a motor, thereby driving the entire linkage mechanism to achieve automated deployment and retraction of the landing gear. Compared with traditional manual or simple mechanical landing gear, the operation is more convenient and efficient. The landing gear status can be flexibly controlled according to actual needs during flight, improving the flight performance and adaptability of the drone.

Description

Technical Field

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

[0002] In the use of drones, the landing gear, as a key component ensuring safe takeoff and landing, directly affects the drone's performance and safety. Traditional drone landing gear mostly employs simple mechanical structures, such as fixed-frame landing gear. This type of landing gear has several limitations. Firstly, fixed-frame landing gear cannot retract or extend, increasing air resistance during drone flight and affecting flight efficiency and range. Secondly, some traditional landing gear has a fixed height, making it difficult to adapt to different takeoff and landing environments and terrain conditions, thus limiting the application range of drones. Therefore, those skilled in the art have provided a drone landing gear to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a landing gear for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A drone landing gear includes a fixed frame, a fixed lug fixedly connected to the lower surface of the fixed frame, a first connecting rod rotatably connected to the inner sidewall of the fixed lug, a sleeve fixedly connected to one end of the first connecting rod, a first fixed sleeve fixedly connected to the surface of the sleeve, a third connecting rod rotatably connected to the sidewall of the first fixed sleeve, a second connecting rod rotatably connected to the bottom of the fixed frame, and one end of the second connecting rod rotatably connected to one end of the third connecting rod.

[0005] Furthermore, a second fixing sleeve is fixedly connected to the surface of the sleeve, and a tension spring is directly fixedly connected to the third connecting rod of the second fixing sleeve.

[0006] Furthermore, a motor assembly is fixedly connected to the side wall of the fixed frame. The motor assembly consists of a servo motor and a reducer. The power output end of the servo motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the shaft end of the first connecting rod.

[0007] Furthermore, a telescopic rod is slidably connected to the inner wall of the sleeve, and a third fixing sleeve for securing the telescopic rod is also fixedly connected to the surface of the sleeve.

[0008] Furthermore, a fourth fixing sleeve is fixedly connected to one end of the telescopic rod, and a base rod is detachably connected to the telescopic rod through the fourth fixing sleeve.

[0009] Furthermore, the cross-sections of the telescopic rod and the base rod are perpendicular to each other, and both ends of the base rod are fixedly connected with rubber heads for contacting the ground.

[0010] By adopting the above technical solution Compared with the prior art, the beneficial effects of this utility model are: 1. The first linkage is driven by the motor unit, which in turn drives the entire linkage mechanism to realize the automatic deployment and retraction of the landing gear. Compared with the traditional manual or simple mechanical landing gear, the operation is more convenient and efficient. The landing gear status can be flexibly controlled according to actual needs during flight, thereby improving the flight performance and adaptability of the UAV.

[0011] 2. The sliding connection between the telescopic boom and the sleeve, along with the locking function of the third fixed sleeve, allows the landing gear height to be adjusted according to different usage scenarios and terrain conditions. Whether taking off and landing on flat ground or complex terrain, it ensures the drone is at a suitable altitude, improving the drone's takeoff and landing safety and versatility. The rubber tips at both ends of the base boom contact the ground, and their excellent elasticity and anti-slip performance provide stable support for the drone's landing, effectively preventing slippage and tipping during landing, thus ensuring the safety and stability of the drone's landing process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a drone landing gear. Figure 2 A front view of a drone landing gear; Figure 3 This is a right view of a drone landing gear; Figure 4 This is a left view of a drone landing gear.

[0013] In the diagram: 1. Fixing frame; 2. Fixing lug; 3. First connecting rod; 4. Sleeve; 5. Second connecting rod; 6. Third connecting rod; 7. First fixing sleeve; 8. Motor assembly; 9. Second fixing sleeve; 10. Tension spring; 11. Third fixing sleeve; 12. Telescopic rod; 13. Fourth fixing sleeve; 14. Base rod; 15. Rubber head. Detailed Implementation

[0014] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0015] Please see Figures 1-4This utility model provides an embodiment of a drone landing gear, including a fixed frame 1. A fixed lug 2 is fixedly connected to the lower surface of the fixed frame 1. A first connecting rod 3 is rotatably connected to the inner wall of the fixed lug 2. One end of the first connecting rod 3 is fixedly connected to a sleeve 4. A first fixing sleeve 7 is fixedly connected to the surface of the sleeve 4. A third connecting rod 6 is rotatably connected to the side wall of the first fixing sleeve 7. A second connecting rod 5 is rotatably connected to the bottom of the fixed frame 1. One end of the second connecting rod 5 is rotatably connected to one end of the third connecting rod 6. A second fixing sleeve 9 is also fixedly connected to the surface of the sleeve 4. A tension spring 10 is directly fixedly connected to the fixed sleeve 9 and the third connecting rod 6. A motor assembly 8 is fixedly connected to the side wall of the fixed frame 1. The motor assembly 8 consists of a servo motor and a reducer. The power output end of the servo motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the shaft end of the first connecting rod 3. After the servo motor starts, it transmits power to the first connecting rod 3 through the reducer, causing the first connecting rod 3 to rotate around the inner side wall of the fixed ear 2. When the first connecting rod 3 rotates, it drives the sleeve 4 to move. Since the surface of the sleeve 4 is fixedly connected to the first fixed sleeve 7, the first... A third link 6 is rotatably connected to the side wall of a fixed sleeve 7. At the same time, one end of the second link 5, which is rotatably connected to the bottom of the fixed frame 1, is rotatably connected to one end of the third link 6. Therefore, driven by the first link 3, the second link 5 and the third link 6 cooperate with each other through the hinge structure to realize the deployment and retraction of the landing gear. During the operation of the landing gear, the tension spring 10 connected between the second fixed sleeve 9, which is fixedly connected to the surface of the sleeve 4, and the third link 6 plays a role in buffering and resetting. When the landing gear is deployed or retracted, the tension spring 10 is stretched or compressed to absorb the impact force during the movement and ensure the smooth operation of the landing gear. At the same time, the elasticity of the tension spring 10 helps the landing gear maintain a stable state after the motor assembly 8 stops working, preventing it from changing position due to external shaking. The first link 3 is driven by the motor assembly 8, which in turn drives the entire linkage mechanism to realize the automatic deployment and retraction of the landing gear. Compared with the traditional manual or simple mechanical landing gear, the operation is more convenient and efficient. The landing gear status can be flexibly controlled according to actual needs during flight, improving the flight performance and adaptability of the UAV.

[0016] In this embodiment, a telescopic rod 12 is slidably connected to the inner wall of the sleeve 4, and a third fixing sleeve 11 for securing the telescopic rod 12 is also fixedly connected to the surface of the sleeve 4. A fourth fixing sleeve 13 is fixedly connected to one end of the telescopic rod 12, and a base rod 14 is detachably connected to the telescopic rod 12 through the fourth fixing sleeve 13. The cross sections of the telescopic rod 12 and the base rod 14 are perpendicular to each other, and rubber heads 15 for contacting the ground are fixedly connected to both ends of the base rod 14. The length of the telescopic rod 12 slidably connected to the inner wall of the sleeve 4 can be adjusted according to actual needs. By adjusting the amount of telescopic extension and contraction of the telescopic rod 12 within the sleeve 4, and utilizing the third fixing sleeve 11 fixedly connected to the surface of the sleeve 4... The telescopic rod 12, secured by sleeve 11, allows for adjustments to the overall landing gear height. A fourth fixed sleeve 13, fixedly connected to one end of the telescopic rod 12, detachably connects to the base rod 14, facilitating its replacement and maintenance. Rubber heads 15, fixedly connected to both ends of the base rod 14, contact the ground. These rubber heads 15 possess excellent elasticity and anti-slip properties, providing cushioning and shock absorption during drone landing, while also increasing friction with the ground to ensure stability. The sliding connection between the telescopic rod 12 and sleeve 4, along with the locking function of the third fixed sleeve 11, allows the landing gear height to be adjusted according to different usage scenarios and terrain conditions. Whether taking off and landing on flat ground or complex terrain, the drone maintains a suitable height, improving its safety and versatility. The rubber heads 15 at both ends of the base rod 14, with their excellent elasticity and anti-slip properties, provide stable support for drone landing, effectively preventing slippage and tipping during descent, thus ensuring the safety and stability of the landing process.

[0017] After the servo motor starts, it transmits power to the first link 3 through the reducer, causing the first link 3 to rotate around the inner wall of the fixed lug 2. When the first link 3 rotates, it drives the sleeve 4 to move. Since the first fixed sleeve 7 is fixedly connected to the surface of the sleeve 4, and the third link 6 is rotatably connected to the side wall of the first fixed sleeve 7, and at the same time, one end of the second link 5 rotatably connected to the bottom of the fixed frame 1 is rotatably connected to one end of the third link 6, under the drive of the first link 3, the second link 5 and the third link 6 cooperate with each other through the hinge structure to realize the deployment and retraction of the landing gear. The telescopic rod 12 slidably connected to the inner wall of the sleeve 4 can be adjusted in length according to actual needs. By adjusting the telescopic rod 12 in the sleeve 4 and using the third fixed sleeve 11 fixedly connected to the surface of the sleeve 4 to tighten the telescopic rod 12, the overall height of the landing gear can be changed.

[0018] The motor unit 8 drives the first linkage 3, which in turn drives the entire linkage mechanism, enabling the automated deployment and retraction of the landing gear. Compared to traditional manual or simple mechanical landing gear, this method is more convenient and efficient, allowing for flexible control of the landing gear status during flight based on actual needs, thus improving the drone's flight performance and adaptability. The sliding connection between the telescopic rod 12 and the sleeve 4, along with the locking function of the third fixed sleeve 11, allows the landing gear height to be adjusted according to different usage scenarios and terrain conditions. Whether taking off and landing on flat ground or complex terrain, the drone can be kept at a suitable altitude, improving its safety and versatility. The rubber tips 15 at both ends of the base rod 14 contact the ground, and their excellent elasticity and anti-slip properties provide stable support for the drone's landing, effectively preventing slippage and tipping during landing, ensuring the safety and stability of the drone's landing process.

[0019] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A landing gear for an unmanned aerial vehicle (UAV), characterized in that, The device includes a fixed frame (1), a fixed ear (2) is fixedly connected to the lower surface of the fixed frame (1), a first connecting rod (3) is rotatably connected to the inner side wall of the fixed ear (2), a sleeve (4) is fixedly connected to one end of the first connecting rod (3), a first fixed sleeve (7) is fixedly connected to the surface of the sleeve (4), a third connecting rod (6) is rotatably connected to the side wall of the first fixed sleeve (7), a second connecting rod (5) is rotatably connected to the bottom of the fixed frame (1), and one end of the second connecting rod (5) is rotatably connected to one end of the third connecting rod (6).

2. The unmanned aerial vehicle landing gear according to claim 1, characterized in that, The sleeve (4) is also fixedly connected to a second fixed sleeve (9), and the second fixed sleeve (9) is directly fixedly connected to the third connecting rod (6) by a tension spring (10).

3. The unmanned aerial vehicle landing gear according to claim 1, characterized in that, The side wall of the fixed frame (1) is fixedly connected to a motor assembly (8), which consists of a servo motor and a reducer. The power output end of the servo motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the shaft end of the first connecting rod (3).

4. The unmanned aerial vehicle landing gear according to claim 1, characterized in that, The inner wall of the sleeve (4) is slidably connected to a telescopic rod (12), and a third fixing sleeve (11) for tightening the telescopic rod (12) is also fixedly connected to the surface of the sleeve (4).

5. The unmanned aerial vehicle landing gear according to claim 4, characterized in that, One end of the telescopic rod (12) is fixedly connected to a fourth fixing sleeve (13), and the telescopic rod (12) is detachably connected to a base rod (14) through the fourth fixing sleeve (13).

6. The unmanned aerial vehicle landing gear according to claim 4, characterized in that, The cross sections of the telescopic rod (12) and the base rod (14) are perpendicular to each other, and both ends of the base rod (14) are fixedly connected with rubber heads (15) for contacting the ground.

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