Buffering undercarriage of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a buffer undercarriage of an unmanned aerial vehicle. Comprising an unmanned aerial vehicle, two landing plates and two buffer assemblies, each buffer assembly comprises a mounting frame, a movable column, a trapezoidal block, two damping rods, two first springs, two guide wheels and two reset pieces, the mounting frames are fixedly connected with the unmanned aerial vehicle and located below the unmanned aerial vehicle, and the movable columns are fixedly connected with the landing plates and movably penetrate through the mounting frames; the trapezoid block is fixedly connected with the movable column and located at the end, away from the rising and falling plate, of the movable column, each reset piece is connected with the mounting frame and the movable column, the two damping rods are fixedly connected with the mounting frame and located on the inner side wall of the mounting frame, and the two guide wheels are connected with the corresponding damping rods and located on the two sides of the trapezoid block. And the two ends of each first spring are connected with the mounting frame and the corresponding guide wheel correspondingly, impact force generated by landing of the unmanned aerial vehicle can be buffered and dissipated, and the unmanned aerial vehicle is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), in particular to a buffer landing gear for UAVs. Background Art

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control and self-contained programmable controls, or operated fully or intermittently autonomously by an onboard computer. Drones can be categorized by their application areas as military or civilian. In the civilian sector, drones combined with industrial applications are a real necessity. Applications in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television production, and creating romance have greatly expanded the uses of drones.

[0003] The existing UAV includes a body and a landing gear. The landing gear is fixedly installed under the body. The landing gear plays a supporting role under the UAV and protects the bottom of the body.

[0004] However, the landing gear of existing drones is a fixed structure, which does not have a cushioning effect on the landing of the drone and cannot cushion the impact force generated by the landing of the drone, causing the drone to be easily damaged. Utility Model Content

[0005] The purpose of the utility model is to provide a cushioned landing gear for UAVs, aiming to solve the technical problem that the landing gear of existing UAVs is a fixed structure, has no cushioning effect on the landing of the UAV, cannot cushion the impact force generated by the landing of the UAV, and causes the UAV to be easily damaged.

[0006] To achieve the above-mentioned purpose, the present invention adopts a UAV cushioned landing gear, comprising a UAV, two landing plates, and two sets of cushioning assemblies, wherein the two sets of cushioning assemblies are connected to the UAV and are both located below the UAV, and the two landing plates are respectively connected to the corresponding cushioning assemblies;

[0007] The buffer assembly includes a mounting frame, a movable column, a trapezoidal block, two damping rods, two first springs, two guide wheels and two groups of reset parts. The mounting frame is fixedly connected to the drone and is located below the drone. The movable column is fixedly connected to the landing plate and movably passes through the mounting frame. The trapezoidal block is fixedly connected to the movable column and is located at the end of the movable column away from the landing plate. Each group of reset parts is respectively connected to the mounting frame and the movable column. The two damping rods are fixedly connected to the mounting frame and are located on the inner side wall of the mounting frame. The two guide wheels are respectively connected to the corresponding damping rods and are located on both sides of the trapezoidal block. The two ends of each first spring are respectively connected to the mounting frame and the corresponding guide wheel.

[0008] Wherein, the buffer assembly further includes a baffle, which is fixedly connected to the trapezoidal block and is located above the trapezoidal block.

[0009] Wherein, the reset member includes a second spring and a fixed plate, the fixed plate is fixedly connected to the movable column and is located on the outer side wall of the movable column, and both ends of the second spring are respectively connected to the installation frame and the fixed plate.

[0010] Wherein, the UAV buffer landing gear also includes a plurality of auxiliary feet, and the auxiliary feet are fixedly provided at both ends of each landing plate.

[0011] The UAV buffer landing gear further includes two anti-skid pads, which are respectively fixedly connected to the corresponding landing plates and are respectively located below the landing plates.

[0012] The utility model provides a buffered landing gear for a drone. When the drone is controlled to land, the two landing plates below the drone will first contact the ground. Then, each landing plate will respectively drive the movable column to enter the installation frame below the drone. The movable column drives the trapezoidal block to move upward in the installation frame. The inclined surfaces on both sides of the trapezoidal block will respectively push the two guide wheels. The force applied to each guide wheel will respectively squeeze the damping rod and the first spring, so that the impact force generated by the landing is buffered and the energy is dissipated. Then the first spring and the damper are reset, and cooperate with the reset member to drive the movable column to reset. Finally, the landing plate is stable on the ground, so that the drone lands safely. Through the above method, it is possible to buffer and dissipate the impact force generated by the landing of the drone, thereby avoiding damage to the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of the cushioned landing gear of the UAV of the present invention.

[0015] Figure 2 It is a structural front view of the cushioned landing gear of the UAV of the present invention.

[0016] Figure 3 This utility model Figure 2 AA line structural cross-sectional view.

[0017] Figure 4 This utility model Figure 3 A magnified view of the local structure at point B.

[0018] 101-UAV, 102-landing plate, 103-mounting frame, 104-movable column, 105-trapezoidal block, 106-damping rod, 107-first spring, 108-guide wheel, 109-baffle, 110-second spring, 111-fixing plate, 112-auxiliary foot, 113-anti-slip pad. DETAILED DESCRIPTION

[0019] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] See also Figures 1 to 4 The present invention provides a UAV cushioned landing gear, comprising a UAV 101, two landing plates 102, and two sets of cushioning components, wherein the two sets of cushioning components are connected to the UAV 101 and are both located below the UAV 101, and the two landing plates 102 are respectively connected to the corresponding cushioning components;

[0021] The buffer assembly includes a mounting frame 103, a movable column 104, a trapezoidal block 105, two damping rods 106, two first springs 107, two guide wheels 108 and two sets of reset parts. The mounting frame 103 is fixedly connected to the UAV 101 and is located below the UAV 101. The movable column 104 is fixedly connected to the landing plate 102 and moves through the mounting frame 103. The trapezoidal block 105 is fixedly connected to the movable column 104 and is located below the movable column 10 At one end away from the landing plate 102, each set of the reset members is respectively connected to the mounting frame 103 and the movable column 104. The two damping rods 106 are both fixedly connected to the mounting frame 103 and are both located on the inner side wall of the mounting frame 103. The two guide wheels 108 are respectively connected to the corresponding damping rods 106 and are located on both sides of the trapezoidal block 105. The two ends of each first spring 107 are respectively connected to the mounting frame 103 and the corresponding guide wheel 108.

[0022] The two landing plates 102 below the drone 101 will first contact the ground, and then each of the landing plates 102 will drive the movable column 104 to enter the installation frame 103 below the drone 101. The movable column 104 drives the trapezoidal block 105 to move upward in the installation frame 103. The inclined surfaces on both sides of the trapezoidal block 105 will push the two guide wheels 108 respectively. Each guide wheel 108 will be forced to squeeze the damping rod 106 and the first spring 107 respectively, so that the impact force generated by the landing is buffered and energy dissipated. Then the first spring 107 and the damper are reset, and cooperate with the reset member to drive the movable column 104 to reset. Finally, the landing plates 102 are stable on the ground, so that the drone 101 lands safely. In this way, the impact force generated by the landing of the drone 101 can be buffered and energy dissipated, thereby avoiding damage to the drone 101.

[0023] Furthermore, the buffer assembly further includes a baffle 109 , which is fixedly connected to the trapezoidal block 105 and is located above the trapezoidal block 105 .

[0024] In this embodiment, the baffle 109 is provided above the trapezoidal block 105 , and the baffle 109 is used to limit the movement range of the guide wheel 108 on the inclined surface of the trapezoidal block 105 , thereby preventing the guide wheel 108 from being located above the trapezoidal block 105 .

[0025] Furthermore, the reset member includes a second spring 110 and a fixed plate 111, the fixed plate 111 is fixedly connected to the movable column 104 and is located on the outer wall of the movable column 104, and the two ends of the second spring 110 are respectively connected to the installation frame 103 and the fixed plate 111.

[0026] In this embodiment, the fixed plate 111 is fixed to the outer side wall of the movable column 104 and pulls the second spring 110. When the lifting and landing plate 102 contacts the ground, the lifting and landing plate 102 will drive the movable column 104 into the installation frame 103. At the same time, the movable column 104 will drive the fixed plate 111 to pull the second spring 110, and the second spring 110 will stretch. After the impact force generated by the landing is buffered and energy is dissipated, the elastic force of the second spring 110 will pull the fixed plate 111 to drive the movable column 104 to reset.

[0027] Furthermore, the UAV cushioned landing gear also includes a plurality of auxiliary feet 112 , and both ends of each landing plate 102 are fixedly provided with the auxiliary feet 112 .

[0028] In this embodiment, by providing the auxiliary feet 112 at both ends of the contact plate, the two auxiliary feet 112 increase the contact area with the ground, thereby improving the landing stability of the drone 101.

[0029] Furthermore, the UAV cushion landing gear further includes two anti-skid pads 113 , which are respectively fixedly connected to the corresponding landing plates 102 and are respectively located below the landing plates 102 .

[0030] In this embodiment, the anti-skid pad 113 is made of rubber and has an anti-skid effect. The landing plate 102 is not easily moved on the ground due to the anti-skid pad 113, which increases the stability of the drone 101 taking off and landing on the ground.

[0031] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the utility model.

Claims

1. A UAV cushion landing gear, characterized in that: The invention comprises a drone, two landing plates and two sets of buffer assemblies, wherein the two sets of buffer assemblies are connected to the drone and are located below the drone, and the two landing plates are respectively connected to the corresponding buffer assemblies; The buffer assembly includes a mounting frame, a movable column, a trapezoidal block, two damping rods, two first springs, two guide wheels and two groups of reset parts. The mounting frame is fixedly connected to the drone and is located below the drone. The movable column is fixedly connected to the landing plate and movably passes through the mounting frame. The trapezoidal block is fixedly connected to the movable column and is located at the end of the movable column away from the landing plate. Each group of reset parts is respectively connected to the mounting frame and the movable column. The two damping rods are fixedly connected to the mounting frame and are located on the inner side wall of the mounting frame. The two guide wheels are respectively connected to the corresponding damping rods and are located on both sides of the trapezoidal block. The two ends of each first spring are respectively connected to the mounting frame and the corresponding guide wheel.

2. The UAV cushion landing gear according to claim 1, characterized in that: The buffer assembly further includes a baffle, which is fixedly connected to the trapezoidal block and is located above the trapezoidal block.

3. The UAV cushion landing gear according to claim 2, characterized in that: The reset member includes a second spring and a fixed plate. The fixed plate is fixedly connected to the movable column and is located on the outer side wall of the movable column. Both ends of the second spring are respectively connected to the installation frame and the fixed plate.

4. The UAV cushion landing gear according to claim 1, characterized in that: The UAV cushioned landing gear further includes a plurality of auxiliary feet, and the auxiliary feet are fixedly provided at both ends of each landing plate.

5. The UAV cushioned landing gear according to claim 1, characterized in that: The UAV buffer landing gear also includes two anti-skid pads, which are respectively fixedly connected to the corresponding landing plates and are respectively located below the landing plates.

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