Unmanned aerial vehicle landing gear and unmanned aerial vehicle

Abstract

The application provides a kind of unmanned aerial vehicle landing gear and unmanned aerial vehicle, it relates to unmanned aerial vehicle landing gear field.It includes: fixed rod, diagonal bracing and support rod, one end of fixed rod is connected with diagonal bracing, the other end is connected with unmanned aerial vehicle body, the end of diagonal bracing away from fixed rod is fixed with support rod, the side wall of fixed rod is provided with sliding slot, and the sliding block that can slide up and down is arranged in sliding slot, diagonal bracing is fixedly connected with sliding block, and buffer spring is fixedly arranged between sliding block and the inner wall of sliding slot.The application has the effect of buffering the landing of unmanned aerial vehicle body.

Description

Technical Field

[0001] This application relates to the field of drone landing gear, and more particularly to a drone landing gear and a drone. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously by an onboard computer, either completely or intermittently.

[0003] The landing gear is an accessory device on the lower part of the drone used to support the drone during landing; the landing gear is the only component that supports the entire drone, so it is an integral part of the aircraft.

[0004] Currently, in related technologies, Chinese patent CN216762143U discloses a drone landing gear, which includes two landing mechanisms, respectively located on the bottom of the drone body near both sides. Each landing mechanism includes a horizontal crossbar located below the drone body and two landing assemblies located above the crossbar. Each landing assembly includes a fixed block fixedly connected to the bottom of the drone body and a support rod detachably connected to the bottom of the fixed block. A receiving groove is formed on one side of the bottom of the fixed block, and two fixing grooves are formed on both sides of the receiving groove. A connecting block is fixedly connected to the top of the support rod, and the connecting block can be inserted into and cooperate with the receiving groove. Two connecting grooves are formed on both sides of the connecting block near the two fixing grooves, and two sliding blocks are arranged in the two connecting grooves. The support rod can be easily disassembled using the sliding blocks and pressing rods without tightening bolts, improving disassembly and assembly efficiency.

[0005] However, although the above application improved the efficiency of disassembly and assembly, the support rod is fixedly connected to the drone body without any buffer structure. Therefore, when the drone body is about to land, a certain impact force will be generated. Since there is no buffer structure, the impact force will be directly transmitted to the drone body, causing some damage to the drone body. In severe cases, it may cause the connection between the support rod and the drone body to break. Summary of the Invention

[0006] In order to improve the problem that the impact force is directly transmitted to the drone due to the lack of any buffer structure, which can cause damage to the drone and, in severe cases, may cause the connection between the support rod and the drone body to break, this application provides a drone landing gear and a drone.

[0007] In a first aspect, this application provides a landing gear for an unmanned aerial vehicle (UAV), which adopts the following technical solution:

[0008] A drone landing gear for supporting the drone body during takeoff and landing includes: a fixed rod, a diagonal brace, and a support rod. One end of the fixed rod is connected to the diagonal brace, and the other end is connected to the drone body. The end of the diagonal brace away from the fixed rod is fixed to the support rod. A groove is formed on the side wall of the fixed rod, and a slider that can slide up and down is provided in the groove. The diagonal brace is fixedly connected to the slider, and a buffer spring is fixedly provided between the slider and the inner wall of the groove.

[0009] By adopting the above technical solution, when the UAV body lands and generates impact force, the support rod will first contact the ground to support the UAV body; then the UAV body will drive the fixed rod to move downward, that is, the slider will slide upward relative to the groove; during the sliding process, the slider will compress the buffer spring, thereby converting the impact force into the elastic potential energy of the buffer spring to buffer the impact force, so that the UAV body is not easily damaged by excessive impact force, and the connection between the fixed rod and the UAV body is not easily broken.

[0010] Optionally, the fixed rod has a first receiving cavity for filling with damping fluid, the diagonal brace has a fixed block fixedly installed, and the fixed block has a second receiving cavity filled with damping fluid. A rubber tube is provided to connect the first receiving cavity and the second receiving cavity. An upward pushing component is provided between the slider and the inside of the first receiving cavity, and a downward pressing component is provided between the fixed rod and the inside of the second receiving cavity.

[0011] By adopting the above technical solution, when the fixed rod moves downward, the pressing component moves within the damping fluid in the second accommodating cavity. Due to the resistance it encounters, the impact force can be offset to a certain extent, thus achieving a buffering effect. At the same time, the slider slides upward, and the pushing component squeezes the damping fluid in the first accommodating cavity into the second accommodating cavity through the rubber tube. The slow squeezing process can offset the impact force to a certain extent, thereby further protecting the drone body.

[0012] Optionally, the push assembly includes: a push plate, a push rod, and a first rubber sleeve. One end of the push rod is fixed to the slider, and the other end passes through the first accommodating cavity and is fixed to the push plate. The first rubber sleeve is fixedly sleeved on the push plate and abuts against the inner wall of the first accommodating cavity.

[0013] The pressing assembly includes a pressing plate, a pressing rod, and a second rubber sleeve. One end of the pressing rod is fixed to the fixing rod, and the other end passes through the second accommodating cavity and is fixed to the pressing plate. The second rubber sleeve is fixedly sleeved on the pressing rod.

[0014] By adopting the above technical solution, the first rubber sleeve can improve the sealing between the upper push plate and the inner wall of the first accommodating cavity, so that the damping fluid in the first accommodating cavity is not easy to leak into the slide groove; the second rubber sleeve can improve the sealing between the lower pressure rod and the fixed block, so that the damping fluid in the second accommodating cavity is not easy to leak outward.

[0015] Optionally, a connecting assembly is provided between the diagonal brace and the fixed rod. The connecting assembly includes a connecting block, a connecting rod, a connecting cylinder, and a connecting spring. A connecting groove is provided on the side wall of the diagonal brace. The connecting block is slidably connected to the connecting groove and can slide up and down. The connecting cylinder is fixed to the fixed rod. One end of the connecting rod extends and retracts inside the connecting cylinder, and the other end is hinged to the connecting block. The connecting spring is fixed between the inner wall of the connecting rod and the connecting cylinder.

[0016] By adopting the above technical solution, the connecting rod and connecting cylinder fix the diagonal brace to the fixed rod, which can improve the stability of the connection between the diagonal brace and the fixed rod, thereby better supporting the UAV body.

[0017] Optionally, the support rod is provided with a buffer mechanism, the buffer mechanism including: a buffer assembly, the buffer assembly including: an umbrella body and multiple pull ropes, the end wall of the support rod is provided with a receiving hole, the umbrella body is housed in the receiving hole, one end of the pull rope is fixedly connected to the umbrella body, and the other end is connected to the inner wall of the receiving hole.

[0018] By adopting the above technical solution, if the drone body suddenly loses driving force in the air, the parachute will be pushed out of the receiving hole and then opened to increase the cross-sectional area and increase air resistance, thereby causing the drone body to decelerate. This makes the drone body less likely to be seriously damaged by crashing into the ground at high speed, thus protecting the drone body. Even if damage occurs, it is less likely to be serious, thereby reducing the difficulty of maintenance.

[0019] Optionally, the buffer mechanism further includes an ejection assembly, which includes a sliding block, a fixed plate, and a compression spring. The fixed plate is fixed in the receiving hole, the sliding block is slidably connected in the receiving hole and can slide horizontally, the end of the pull rope away from the umbrella body is connected to the sliding block, and the compression spring is fixed between the fixed plate and the sliding block.

[0020] By adopting the above technical solution, if the drone body suddenly loses driving force in the air, the compression spring will release its elastic potential energy to push the sliding block out of the receiving hole, thereby pushing the parachute out of the receiving hole.

[0021] Optionally, the buffer mechanism further includes an adsorption component, which includes a sliding rod, an iron plate, and an electromagnet. The electromagnet is fixed at the bottom of the receiving hole and electrically connected to the UAV body. The iron plate is slidably connected to one end of the fixing plate near the electromagnet. One end of the sliding rod is fixed to the sliding block, and the other end passes through the fixing plate and is fixed to the iron plate.

[0022] By adopting the above technical solution, once the drone body is started, the electromagnet is energized and magnetically attracts the iron plate. The sliding rod ensures that the sliding block maintains compression of the spring, preventing the parachute from being ejected from the receiving hole before the drone body loses its driving force. Once the drone body loses its driving force in the air, the electromagnet is immediately de-energized, meaning it no longer magnetically attracts the iron plate, and the spring returns to its original shape. During this return-to-shape process, the sliding block is pushed out of the receiving hole until the iron plate abuts against the fixed plate, facilitating the opening of the parachute.

[0023] Optionally, the buffer mechanism further includes a blocking assembly, which includes a blocking rod, an arc-shaped plate, and a blocking spring. The bottom wall of the support rod has an arc-shaped groove. When the UAV body lands on the ground, the arc-shaped plate is inserted into the arc-shaped groove. One end of the blocking rod is fixed to the arc-shaped plate, and the other end passes through the receiving hole and abuts against the iron plate. The blocking spring is sleeved on the blocking rod, with one end fixed to the bottom of the arc-shaped groove and the other end fixed to the blocking rod.

[0024] By adopting the above technical solution, after the drone body lands, the arc-shaped plate contacts the ground to press the arc-shaped plate into the arc-shaped groove; at this time, the blocking rod will extend into the receiving hole and abut against the side of the iron plate near the fixed plate. Thus, after the drone body is powered off, even if the electromagnet no longer magnetically attracts the iron plate, the blocking rod can prevent the iron plate from easily approaching the fixed plate, that is, the compression spring cannot be released, thereby ensuring that the parachute can always be stored in the receiving hole.

[0025] Optionally, the buffer mechanism further includes a rotating assembly, which includes a rotating rod and a fixed plate. The rotating rod is rotatably mounted on the sliding block, and the fixed plate is fixed to the rotating rod. The end of the pull rope away from the umbrella body is fixed to the fixed plate.

[0026] By adopting the above technical solution, after the canopy is pushed out of the receiving hole, it may flip over due to the weight of the drone body. At this time, since the fixing plate is installed on the rotating rod, the canopy and the pull rope always remain in a vertical state, thus better protecting the drone body.

[0027] Secondly, this application provides a drone, which adopts the following technical solution:

[0028] An unmanned aerial vehicle (UAV) including UAV landing gear.

[0029] By adopting the above technical solutions, the drone can be cushioned during landing, thus making it less likely to be damaged by excessive impact.

[0030] In summary, this application includes at least one of the following beneficial effects:

[0031] 1. When the drone body lands and generates impact force, the support rod will first contact the ground to support the drone body; then the drone body will drive the fixed rod to move downward, that is, the slider will slide upward relative to the groove; during the sliding process, the slider will compress the buffer spring, thereby converting the impact force into the elastic potential energy of the buffer spring to buffer the impact force, so that the drone body is not easily damaged by excessive impact force, and the connection between the fixed rod and the drone body is not easily broken.

[0032] 2. If the drone body suddenly loses driving force in the air, the compression spring will release its elastic potential energy to push the sliding block out of the receiving hole, thereby pushing the parachute out of the receiving hole. Attached Figure Description

[0033] Figure 1 This is a schematic perspective view of a drone landing gear according to one embodiment of this application;

[0034] Figure 2 yes Figure 1 A schematic top view;

[0035] Figure 3 It is along Figure 2 A schematic cross-sectional view taken by the cutting line AA in the diagram;

[0036] Figure 4 yes Figure 3 A schematic enlarged view of part B in the diagram;

[0037] Figure 5 It is along Figure 2 A schematic cross-sectional view cut off by the section line CC;

[0038] Figure 6 yes Figure 5 A schematic enlarged view of part D in the middle.

[0039] In the diagram: 1. UAV body; 11. Fixing rod; 111. Slide groove; 1111. Slider; 1112. Buffer spring; 112. First receiving cavity; 1121. Rubber tube; 12. Diagonal brace; 121. Connecting groove; 13. Support rod; 131. Receiving hole; 132. Arc groove; 133. Fixing block; 1331. Second receiving cavity; 2. Upward push assembly; 21. Upward push plate; 22. Upward push rod; 23. First rubber sleeve; 3. Downward press assembly; 31. Downward press plate; 32. Downward press... 33. Rod; 4. Second rubber sleeve; 5. Connecting assembly; 6. Connecting block; 7. Connecting rod; 8. Connecting cylinder; 9. Connecting spring; 10. Buffer assembly; 11. Umbrella body; 12. Pull rope; 13. Ejection assembly; 14. Sliding block; 15. Fixing plate; 16. Compression spring; 17. Adsorption assembly; 18. Sliding rod; 19. Iron plate; 10. Electromagnet; 11. Blocking assembly; 12. Blocking rod; 13. Arc plate; 14. Blocking spring; 15. Rotating assembly; 16. Rotating rod; 17. Fixing plate; 18. Fixed plate; 19. Fixed plate; 20. Fixed plate; 20. Fixed plate; 31. Second rubber sleeve; 42. Connecting assembly; 33. Connecting block; 44. Connecting spring; 5. Buffer assembly; 65. Umbrella body; 10. Pull rope; 19. Connecting assembly; 20. Connecting block; 31. Connecting rod; 20. Connecting cylinder; 32. Connecting spring; 43. Connecting assembly; 44. Connecting spring; 55. Buffer assembly; 66. Connecting assembly; 77. Connecting rod; 88. Connecting cylinder; 99. Connecting spring; 10. Connecting rod; 11. Connecting cylinder; 20. Connecting cylinder; 19. Connecting spring; 20. Connecting cylinder; 20. Connecting spring; 31. Connecting rod; 20. Connecting cylinder; 32. Connecting spring; 33. Connecting assembly; 44. Connecting block; 55. Connecting rod; 66. Connecting cylinder; 77. Connecting spring; 88. Connecting assembly; 99. Connecting rod; 100. Connecting Detailed Implementation

[0040] Example 1:

[0041] This application provides a landing gear for an unmanned aerial vehicle (UAV).

[0042] See Figure 1 A drone landing gear is disclosed for supporting the drone body 1 during takeoff and landing. It generally includes a fixed rod 11, a diagonal brace 12, and a support rod 13. One end of the fixed rod 11 is connected to the diagonal brace 12, and the other end is detachably connected to the drone body 1 via bolts and nuts. The diagonal brace 12 is inclined, with the end of the diagonal brace 12 away from the fixed rod 11 tilting downwards. The end of the diagonal brace 12 away from the fixed rod 11 is fixed to the support rod 13, i.e., the support rod 13 is horizontally positioned. In this embodiment, the fixed rod 11, diagonal brace 12, and support rod 13 are all configured as a pair, located at the bottom of the drone body 1, and arranged symmetrically along an axis.

[0043] See Figure 2 and Figure 3The fixed rod 11 has a groove 111 on its side wall near the diagonal brace 12 along its length, and a slider 1111 that can slide up and down is provided in the groove 111. The end of the diagonal brace 12 near the fixed rod 11 is fixedly connected to the slider 1111. In this embodiment, both the groove 111 and the slider 1111 are "T" shaped and compatible. A buffer spring 1112 is fixedly installed between the top wall of the slider 1111 and the inner top wall of the slide groove 111. When the drone body 1 lands and generates an impact force, the support rod 13 will first contact the ground to support the drone body 1. Then the drone body 1 will drive the fixed rod 11 to move downward, that is, the slider 1111 slides upward relative to the slide groove 111. During the sliding process, the slider 1111 will compress the buffer spring 1112, thereby converting the impact force into the elastic potential energy of the buffer spring 1112 to buffer the impact force. Thus, the drone body 1 is not easily damaged by excessive impact force, and the connection between the fixed rod 11 and the drone body 1 is not easily broken.

[0044] See Figure 4 The fixed rod 11 has a first receiving cavity 112 inside, and a second receiving cavity 1331 is located above the slide groove 111 for filling with damping fluid. A fixing block 133 is fixedly installed on the side wall of the diagonal brace 12 via the rod body. The fixing block 133 is located directly below the fixed rod 11, and a second receiving cavity 1331 containing damping fluid is provided inside the fixing block 133. The damping fluid can attenuate the kinetic energy of the moving machinery by relying on the viscous resistance of the liquid medium, which can shorten the mechanical swing or movement time, thereby achieving a better buffering effect and even a shock absorption effect, so that the UAV body 1 is less likely to tip over due to shaking during landing. The damping fluid is not shown in the figure of this embodiment.

[0045] See Figure 4A rubber tube 1121 is provided to connect the first accommodating cavity 112 and the second accommodating cavity 1331. The connection between the rubber tube 1121 and the first accommodating cavity 112 is located at the top end of the first accommodating cavity 112, and the connection between the rubber tube 1121 and the second accommodating cavity 1331 is located at the bottom end of the second accommodating cavity 1331 and is immersed in the damping fluid. An upward pushing component 2 is provided between the slider 1111 and the interior of the first accommodating cavity 112, and a downward pressing component 3 is provided between the fixed rod 11 and the interior of the second accommodating cavity 1331. When the fixed rod 11 moves downward, the downward pressing component 3 moves through the damping fluid in the second accommodating cavity 1331. Due to the resistance it receives, the impact force can be offset to a certain extent, thereby achieving the effect of buffering the impact force and further protecting the drone body 1. At the same time, the slider 1111 slides upward, and the upward pushing component 2 will squeeze the damping fluid in the first accommodating cavity 112 into the second accommodating cavity 1331 through the rubber tube 1121. The slow squeezing process can offset the impact force to a certain extent, thereby further protecting the drone body 1.

[0046] See Figure 4 The push assembly 2 includes an push plate 21, a push rod 22, and a first rubber sleeve 23. One end of the push rod 22 is fixed to the top wall of the slider 1111, and the other end is fitted with a buffer spring 1112 and extends into the first accommodating cavity 112, where it is fixed to the push plate 21. When the slider 1111 slides upward relative to the push plate 21, the push plate 21 moves upward to compress the damping fluid in the first accommodating cavity 112 and compresses it into the second accommodating cavity 1331 through the rubber tube 1121. The slow compression process can offset the impact force to a certain extent, thereby further protecting the UAV body 1.

[0047] See Figure 4 The first rubber sleeve 23 is fixedly sleeved on the upper push plate 21, and the first rubber sleeve 23 abuts against the inner wall of the first accommodating cavity 112. The first rubber sleeve 23 can improve the sealing between the upper push plate 21 and the inner wall of the first accommodating cavity 112, so that the damping fluid in the first accommodating cavity 112 is not easy to leak into the slide groove 111. In this embodiment, the total weight of the support rod 13 and the diagonal brace 12 is much greater than the frictional force between the first rubber sleeve 23 and the inner wall of the first accommodating cavity 112, so that after the UAV body 1 takes off, the slider 1111 can drive the upper push plate 21 to move downward;

[0048] When the slider 1111 drives the upper push plate 21 to move downward, due to the sealed environment, the damping fluid squeezed into the second accommodating cavity 1331 can be drawn back into the first accommodating cavity 112 through the setting of the rubber tube 1121, thereby facilitating subsequent repeated squeezing.

[0049] See Figure 4 The pressing assembly 3 includes a pressing plate 31, a pressing rod 32, and a second rubber sleeve 33. One end of the pressing rod 32 is fixed to the bottom wall of the slider 1111, and the other end extends into the second accommodating cavity 1331 and is fixed to the pressing plate 31. The pressing plate 31 is immersed in damping fluid. When the fixing rod 11 moves downward, the pressing rod 32 will drive the pressing plate 31 to move in the damping fluid in the second accommodating cavity 1331. Due to the resistance experienced by the pressing plate 31, the impact force can be offset to a certain extent, thereby achieving the effect of buffering the impact force.

[0050] See Figure 4 The second rubber sleeve 33 is fixedly sleeved on the lower pressure rod 32. The second rubber sleeve 33 can improve the sealing between the lower pressure rod 32 and the fixed block 133, so that the damping fluid in the second accommodating cavity 1331 is not easy to leak out.

[0051] See Figure 4 A connecting assembly 4 is provided between the diagonal brace 12 and the fixed rod 11. The connecting assembly 4 includes a connecting block 41, a connecting rod 42, a connecting cylinder 43, and a connecting spring 44. A connecting groove 121 is formed on the side wall of the diagonal brace 12 along its length. The connecting block 41 is slidably connected to the connecting groove 121 and can slide up and down. The connecting cylinder 43 is fixed to the side of the fixed rod 11 near the diagonal brace 12. One end of the connecting rod 42 is hinged to the connecting block 41, and the other end extends and retracts within the connecting cylinder 43.

[0052] See Figure 4 One end of the connecting spring 44 is fixed to the end of the connecting rod 42 away from the connecting block 41, and the other end is fixed to the bottom of the connecting cylinder 43. The diagonal brace 12 and the fixed rod 11 are fixedly connected by the connecting rod 42 and the connecting cylinder 43, which can improve the stability of the connection between the diagonal brace 12 and the fixed rod 11, thereby better supporting the UAV body 1. Furthermore, the connecting spring force can push the connecting rod 42 outward, thereby extending it out of the connecting cylinder 43, so that the fixed rod 11 can adapt to the distance between the fixed rod 11 and the diagonal brace 12 during the movement.

[0053] See Figure 5 and Figure 6 The support rod 13 is equipped with a buffer mechanism, which includes: a buffer component 5, an ejection component 6, an adsorption component 7, a blocking component 8, and a rotation component 9.

[0054] See Figure 6The buffer assembly 5 includes a canopy 51 and multiple pull ropes 52. The end walls of the support rods 13 are provided with receiving holes 131, meaning that the end walls at both ends of a single support rod 13 are provided with receiving holes 131. The canopy 51 is housed within the receiving holes 131. In this embodiment, the canopy 51 can be parachute-shaped. One end of each pull rope 52 is fixedly connected to the canopy 51, and the other end is connected to the ejection assembly 6. The connections of the multiple pull ropes 52 to the canopy 51 are evenly distributed along the circumference of the canopy 51. If the drone body 1 suddenly loses its driving force in the air, the ejection action of the ejection assembly 6 can push the canopy 51 out of the receiving holes 131. Then, the canopy 51 opens, increasing its cross-sectional area and thus increasing air resistance, thereby causing the drone body 1 to decelerate. This prevents the drone body 1 from suffering severe damage due to a high-speed impact with the ground, thus providing protection for the drone body 1. Even if damage occurs, it is unlikely to be severe, reducing the difficulty of maintenance.

[0055] See Figure 6 The ejection assembly 6 includes a sliding block 61, a fixing plate 62, and a compression spring 63. The fixing plate 62 is fixed within the receiving hole 131. The sliding block 61 is slidably connected within the receiving hole 131 and can slide along the axis of the receiving hole 131. The sliding block 61 is located on the side of the fixing plate 62 away from the bottom of the receiving hole 131. The compression spring 63 is fixed between the sliding block 61 and the fixing plate 62, and when the parachute 51 is housed within the receiving hole 131, the compression spring 63 is in a compressed state.

[0056] See Figure 6 The adsorption component 7 includes a sliding rod 71, an iron plate 72, and an electromagnet 73. The electromagnet 73 is fixed at the bottom of the receiving hole 131, and in this embodiment, the electromagnet 73 is electrically connected to the drone body 1, meaning that the electromagnet 73 can be energized by the power supply of the drone body 1. Once the drone body 1 is started, the electromagnet 73 is energized. The iron plate 72 is slidably connected within the receiving hole 131 and can slide along the axis of the receiving hole 131. The iron plate 72 is located on the side of the fixing plate 62 near the electromagnet 73.

[0057] See Figure 6One end of the sliding rod 71 has a sliding block 61 fixed to its side wall, and the other end has a compression spring 63 that passes through the fixing plate 62 and is fixedly connected to the iron plate 72. Once the drone body 1 is started, the electromagnet 73 is energized and magnetically attracts the iron plate 72. Due to the setting of the sliding rod 71, the sliding block 61 always keeps the compression spring 63 compressed, so that the parachute 51 is not easily ejected from the receiving hole 131 before the drone body 1 loses its driving force. Once the drone body 1 loses its driving force in the air, the electromagnet 73 is immediately de-energized, that is, the electromagnet 73 no longer magnetically attracts the iron plate 72, so the compression spring 63 will restore its deformation. During the process of restoring its deformation, it will push the sliding block 61 out of the receiving hole 131 until the iron plate 72 abuts against the fixing plate 62, so that the parachute 51 can be pushed out of the receiving hole 131 for opening.

[0058] See Figure 6 The blocking component 8 includes a blocking rod 81, an arc plate 82, and a blocking spring 83. The bottom wall of the support rod 13 has an arc groove 132. When the UAV body 1 is in flight, the arc plate 82 separates from the arc groove 132. When the UAV body 1 lands on the ground, the arc plate 82 is inserted into the arc groove 132.

[0059] See Figure 6 One end of the blocking rod 81 is fixed to the top wall of the arc-shaped plate 82, and the other end extends into the receiving hole 131 and abuts against the side of the iron plate 72 near the fixed plate 62. The blocking spring 83 is sleeved on one end of the blocking rod 81 located in the arc-shaped groove 132, with one end fixed to the bottom of the arc-shaped groove 132 and the other end fixed to the side wall of the blocking rod 81. After the drone body 1 lands, the arc-shaped plate 82 contacts the ground, pressing the arc-shaped plate 82 into the arc-shaped groove 132; at this time, the blocking rod 81 will extend into the receiving hole 131 and abut against the side of the iron plate 72 near the fixed plate 62. Thus, after the drone body 1 is powered off, even if the electromagnet 73 no longer magnetically attracts the iron plate 72, the blocking rod 81 can prevent the iron plate 72 from easily approaching the fixed plate 62, i.e., the compression spring 63 will not be released, thus ensuring that the parachute 51 can always be stored in the receiving hole 131.

[0060] However, if you want to pick up the drone body 1 by hand, you need to press down the arc plate 82 so that the arc plate 82 is not easily ejected from the arc groove 132 due to the resistance of the spring 83.

[0061] See Figure 6The rotating assembly 9 includes a rotating rod 91 and a fixed plate 92. The rotating rod 91 is rotatably mounted on the side of the sliding block 61 away from the compression spring 63. The fixed plate 92 is fixedly mounted on the rotating rod 91, and the rotating rod 91 can drive the fixed plate 92 to rotate. The end of the pull rope 52 away from the umbrella body 51 is fixed to the fixed plate 92. After the umbrella body 51 is pushed out of the receiving hole 131, it may tip over due to the weight of the drone body 1. At this time, because the fixed plate 92 is mounted on the rotating rod 91, the umbrella body 51 and the pull rope 52 always remain in a vertical state, thereby better protecting the drone body 1.

[0062] The working principle of the drone landing gear of this application is as follows: When the drone body 1 lands and generates an impact force, the support rod 13 will first contact the ground to support the drone body 1; then the drone body 1 will drive the fixed rod 11 to move downward, that is, the slider 1111 slides upward relative to the slide groove 111; during the sliding process, the slider 1111 will compress the buffer spring 1112, thereby converting the impact force into the elastic potential energy of the buffer spring 1112 to buffer the impact force, so that the drone body 1 is not easily damaged by excessive impact force, and the connection between the fixed rod 11 and the drone body 1 is not easily broken.

[0063] Example 2:

[0064] This application also provides a drone.

[0065] See Figure 1 A drone includes: a drone landing gear and a drone body 1 as described in the above embodiment. For the specific drone landing gear structure, please refer to the description of the above embodiment one; it will not be repeated here.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A landing gear for unmanned aerial vehicles (UAVs) for supporting the UAV body (1) during takeoff and landing, characterized in that, include: The fixed rod (11), the diagonal brace (12), and the support rod (13) are provided. One end of the fixed rod (11) is connected to the diagonal brace (12), and the other end is connected to the UAV body (1). The end of the diagonal brace (12) away from the fixed rod (11) is fixed to the support rod (13). The side wall of the fixed rod (11) is provided with a sliding groove (111), and a slider (1111) that can slide up and down is provided in the sliding groove (111). The diagonal brace (12) is fixedly connected to the slider (1111), and a buffer spring (1112) is fixedly provided between the slider (1111) and the inner wall of the sliding groove (111). The fixed rod (11) has a first accommodating cavity (112) for loading damping fluid. The inclined support rod (12) is fixedly provided with a fixed block (133), and the fixed block (133) has a second accommodating cavity (1331) filled with damping fluid. A rubber tube (1121) is provided between the first accommodating cavity (112) and the second accommodating cavity (1331). An upward pushing component (2) is provided between the slider (1111) and the interior of the first accommodating cavity (112). A downward pressing component (3) is provided between the fixed rod (11) and the interior of the second accommodating cavity (1331). The push assembly (2) includes: a push plate (21), a push rod (22) and a first rubber sleeve (23). One end of the push rod (22) is fixed to the slider (1111), and the other end passes through the first accommodating cavity (112) and is fixed to the push plate (21). The first rubber sleeve (23) is fixedly sleeved on the push plate (21) and abuts against the inner wall of the first accommodating cavity (112). The pressing assembly (3) includes: a pressing plate (31), a pressing rod (32), and a second rubber sleeve (33). One end of the pressing rod (32) is fixed to the fixing rod (11), and the other end passes through the second accommodating cavity (1331) and is fixed to the pressing plate (31). The second rubber sleeve (33) is fixedly sleeved on the pressing rod (32). A connecting assembly (4) is provided between the diagonal brace (12) and the fixed rod (11). The connecting assembly (4) includes a connecting block (41), a connecting rod (42), a connecting cylinder (43), and a connecting spring (44). The side wall of the diagonal brace (12) is provided with a connecting groove (121). The connecting block (41) is slidably connected in the connecting groove (121) and can slide up and down. The connecting cylinder (43) is fixed on the fixed rod (11). One end of the connecting rod (42) extends and retracts in the connecting cylinder (43), and the other end is hinged to the connecting block (41). The connecting spring (44) is fixed between the connecting rod (42) and the inner wall of the connecting cylinder (43). A buffer mechanism is provided on the support rod (13). The buffer mechanism includes a buffer assembly (5). The buffer assembly (5) includes an umbrella body (51) and multiple pull ropes (52). The end wall of the support rod (13) is provided with a receiving hole (131). The umbrella body (51) is housed in the receiving hole (131). One end of the pull rope (52) is fixedly connected to the umbrella body (51), and the other end is connected to the inner wall of the receiving hole (131). The buffer mechanism further includes: an ejection assembly (6), the ejection assembly (6) includes: a sliding block (61), a fixing plate (62) and a compression spring (63), the fixing plate (62) is fixed in the receiving hole (131), the sliding block (61) is slidably connected in the receiving hole (131) and can slide horizontally, the end of the pull rope (52) away from the umbrella body (51) is connected to the sliding block (61), and the compression spring (63) is fixed between the fixing plate (62) and the sliding block (61); The buffer mechanism further includes an adsorption component (7), which includes a slide rod (71), an iron plate (72), and an electromagnet (73). The electromagnet (73) is fixed at the bottom of the receiving hole (131) and electrically connected to the UAV body (1). The iron plate (72) is slidably connected to one end of the fixing plate (62) near the electromagnet (73). One end of the slide rod (71) is fixed to the sliding block (61), and the other end passes through the fixing plate (62) and is fixed to the iron plate (72).

2. The UAV landing gear according to claim 1, characterized in that, The buffer mechanism further includes a blocking component (8), which includes a blocking rod (81), an arc plate (82), and a blocking spring (83). The bottom wall of the support rod (13) is provided with an arc groove (132). When the UAV body (1) lands on the ground, the arc plate (82) is inserted into the arc groove (132). One end of the blocking rod (81) is fixed to the arc plate (82), and the other end passes through the receiving hole (131) and abuts against the iron plate (72). The blocking spring (83) is sleeved on the blocking rod (81), and one end is fixed to the bottom of the arc groove (132), and the other end is fixed to the blocking rod (81).

3. The UAV landing gear according to claim 2, characterized in that, The buffer mechanism further includes a rotating assembly (9), which includes a rotating rod (91) and a fixed plate (92). The rotating rod (91) is rotatably mounted on the sliding block (61), and the fixed plate (92) is fixed on the rotating rod (91). One end of the pull rope (52) away from the umbrella body (51) is fixed to the fixed plate (92).

4. A drone, characterized in that, include: The unmanned aerial vehicle landing gear according to any one of claims 1-3.

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