Undercarriage buffer assembly of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle undercarriage buffer assembly, and belongs to the technical field of unmanned aerial vehicle part buffer assemblies. The device comprises a base, a connecting frame is arranged on the outer side of the base, a threaded rod is movably connected into the base, the bottom of the threaded rod is movably connected with a limiting rod located at the bottom of the base, a limiting groove is formed in the limiting rod, and a connecting ring is movably connected into the limiting groove. The screw rod and the connecting ring are arranged, the screw rod can move downwards when rotating, the distance between the base and the supporting plate is shortened, the buffering amplitude is reduced, the base is reset faster, the spring piece is arranged, when the base moves downwards, the spring piece is pressed to stretch, the damping block moves in the sliding groove, the outward stretching speed of the spring piece is reduced, and the damping effect is improved. And when the damping block is attached to the inner wall of the sliding groove, the spring piece drives the base to reset, and by arranging a first reset spring, the stability of the spring piece is improved, and the reset speed of the spring piece is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer components of unmanned aerial vehicles, in particular to a buffer component of a landing gear of a unmanned aerial vehicle. Background Art

[0002] In recent years, drones have been widely used in many fields due to their advantages such as flexibility, quick response, unmanned flight, and low operating requirements. Therefore, the drone industry has developed rapidly. The landing gear of a drone is generally fixed at the bottom of the drone's fuselage to support the drone's fuselage upwards. It is an important component that can ensure the drone's safe landing and take-off stability. During the landing process of the drone, the drone's landing gear needs to withstand the corresponding impact under the action of the drone's inertia. Utility Model Content

[0003] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide a UAV landing gear buffer assembly, which has the advantages of buffering and shock absorption.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a UAV landing gear buffer assembly comprises a base, a connecting frame is arranged on the outer side of the base, a screw is movably connected inside the base, the bottom of the screw is movably connected to a limiting rod located at the bottom of the base, a limiting groove is arranged inside the limiting rod, a connecting ring is movably connected inside the limiting groove, the connecting ring is threadedly connected to the screw, a supporting plate is fixedly connected to the bottom of the limiting rod, a sliding groove is arranged inside the supporting plate, a damping block is movably connected inside the sliding groove, the top of the damping block is fixedly connected to a connecting block, the top of the connecting block is fixedly connected to a spring sheet, the bottom of the spring sheet is fixedly connected to a pressing sheet, the bottom of the pressing sheet is fixedly connected to a first return spring, the inner side of the support plate is fixedly connected to a reinforcing plate, and the bottom of the first return spring is fixedly connected to the reinforcing plate.

[0005] The beneficial effects of the utility model are as follows: the utility model sets a screw rod and a connecting ring, and the screw rod rotates to move downward, shortening the distance between the base and the support plate, reducing the amplitude of the buffer, and allowing the base to reset faster. By setting a spring sheet, when the base moves downward, the spring sheet is pressed to stretch, and the damping block moves in the slide slot, slowing down the speed of the spring sheet extending outward, and at the same time slowing down the speed of the base pressing the spring sheet. When the damping block fits the inner wall of the slide slot, the spring sheet drives the base to reset. By setting a first reset spring, the stability of the spring sheet is increased, and the speed of the spring sheet resetting is increased. The utility model sets a support leg and a limit block to reduce the contact area between the support plate and the ground, increase the stability of the bottom, and at the same time, the support leg is detachable, which is convenient for cleaning and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the utility model.

[0007] Figure 2 The utility model structure Figure 1 Enlarged schematic diagram at point A in the middle.

[0008] Figure 3 It is a schematic side view of the structure of the utility model.

[0009] Figure 4 It is a schematic diagram of the structural surface of the utility model. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0011] like Figures 1 to 4 As shown, the UAV landing gear buffer assembly of this embodiment includes a base 1, a connecting frame 2 is arranged on the outer side of the base 1, a screw rod 3 is movably connected inside the base 1, a limit rod 4 located at the bottom of the base 1 is movably connected to the bottom of the screw rod 3, a limit groove 5 is arranged inside the limit rod 4, a connecting ring 6 is movably connected inside the limit groove 5, the connecting ring 6 is threadedly connected to the screw rod 3, a support plate 7 is fixedly connected to the bottom of the limit rod 4, a slide groove 8 is arranged inside the support plate 7, a damping block 9 is movably connected inside the slide groove 8, a connecting block 10 is fixedly connected to the top of the damping block 9, a spring sheet 11 is fixedly connected to the top of the connecting block 10, a pressing sheet 12 is fixedly connected to the bottom of the spring sheet 11, a first return spring 13 is fixedly connected to the bottom of the pressing sheet 12, a reinforcing plate 14 is fixedly connected to the inner side of the support plate 7, and the bottom of the first return spring 13 is fixedly connected to the reinforcing plate 14.

[0012] refer to Figure 1 The outer side of the support plate 7 is movably connected with a support leg 15, the outer side of the support plate 7 is fixedly connected with a limit block 16, and the interior of the support leg 15 is provided with a mounting groove 17, which is movably connected to the limit block 16.

[0013] In this embodiment, the support legs 15 and the limit blocks 16 are used to reduce the contact area between the support plate 7 and the ground, thereby increasing the stability of the bottom. Meanwhile, the support legs 15 are detachable for easy cleaning and replacement.

[0014] refer to Figure 4 A shock-absorbing pad 18 is fixedly connected to the bottom of the supporting leg 15 .

[0015] In this embodiment, the shock-absorbing pad 18 is provided to increase the stability of the support leg 15 in contact with the ground and to increase the efficiency of absorbing vibration.

[0016] refer to Figure 2A second return spring 19 is fixedly connected inside the slide slot 8 , and the second return spring 19 is movably connected to the damping block 9 .

[0017] In this embodiment, the second return spring 19 is provided to slow down the movement speed of the damping block 9 and increase the return speed of the damping block 9.

[0018] refer to Figure 4 The bottom of the pressing sheet 12 and the top of the reinforcing plate 14 are both fixedly connected with a protective ring 20 .

[0019] In this embodiment, the protection ring 20 is provided to make the first return spring 13 more stable when moving.

[0020] refer to Figure 1 A handle 21 is fixedly connected to the top of the screw rod 3 .

[0021] In this embodiment, a handle 21 is provided to facilitate driving the screw rod 3 to rotate.

[0022] The utility model drives the screw rod 3 to rotate through the handle 21, and the screw rod 3 is connected to the connecting ring 6 through rotation. When the screw rod 3 rotates, it moves downward, and the base 1 is driven to move downward through the movement of the screw rod 3. When the base 1 shakes, the connecting ring 6 is driven to move in the slide groove 8 through the screw rod 3. When the base 1 shakes, the bottom contacts the spring sheet 11 and presses the spring sheet 11 downward. The spring sheet 11 drives the pressing sheet 12 to press the first reset spring 13, and the connecting blocks 10 on both sides are driven to move outward through the spring sheet 11. The damping block 9 is driven in the sliding groove 8 through the connecting block 10. The spring sheet 11 is reset upwards by the first reset spring 13, and the damping block 9 is pushed inwards by the second reset spring 19 to reset. The two ends of the spring sheet 11 are driven by the damping block 9 to reset the spring sheet 11, and the base 1 is reset by the spring sheet 11, and the support leg 15 is pulled to separate the limit block 16 from the support leg 15, which can be replaced and cleaned. When the support leg 15 is connected to the limit block 16, the shock-absorbing pad 18 at the bottom is in contact with the ground.

Claims

1. A landing gear buffer assembly for an unmanned aerial vehicle, comprising a base (1), characterized in that: A connecting frame (2) is arranged on the outside of the base (1); a screw rod (3) is movably connected inside the base (1); a limiting rod (4) located at the bottom of the base (1) is movably connected at the bottom of the screw rod (3); a limiting groove (5) is provided inside the limiting rod (4); a connecting ring (6) is movably connected inside the limiting groove (5); the connecting ring (6) is threadedly connected to the screw rod (3); a supporting plate (7) is fixedly connected at the bottom of the limiting rod (4); a sliding groove ( 8), the slide groove (8) is internally movably connected with a damping block (9), the top of the damping block (9) is fixedly connected with a connecting block (10), the top of the connecting block (10) is fixedly connected with a spring sheet (11), the bottom of the spring sheet (11) is fixedly connected with a pressing sheet (12), the bottom of the pressing sheet (12) is fixedly connected with a first return spring (13), the inner side of the support plate (7) is fixedly connected with a reinforcing plate (14), and the bottom of the first return spring (13) is fixedly connected to the reinforcing plate (14).

2. The UAV landing gear buffer assembly according to claim 1, characterized in that: The outer side of the support plate (7) is movably connected to a support leg (15), the outer side of the support plate (7) is fixedly connected to a limit block (16), a mounting groove (17) is provided inside the support leg (15), and the mounting groove (17) is movably connected to the limit block (16).

3. The UAV landing gear buffer assembly according to claim 2, characterized in that: A shock-absorbing pad (18) is fixedly connected to the bottom of the supporting leg (15).

4. The UAV landing gear buffer assembly according to claim 3, characterized in that: A second return spring (19) is fixedly connected inside the slide groove (8), and the second return spring (19) is movably connected to the damping block (9).

5. The UAV landing gear buffer assembly according to claim 4, characterized in that: The bottom of the pressing sheet (12) and the top of the reinforcing plate (14) are both fixedly connected with a protective ring (20).

6. The UAV landing gear buffer assembly according to claim 1, 2 or 5, characterized in that: A handle (21) is fixedly connected to the top of the screw rod (3).

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