Unmanned aerial vehicle undercarriage

Abstract

The utility model discloses an unmanned aerial vehicle undercarriage, relates to the technical field of unmanned aerial vehicles, and provides the following scheme that the unmanned aerial vehicle undercarriage comprises a connecting plate and a buffer mechanism arranged at the bottom of the connecting plate, the buffer mechanism comprises a working assembly and a buffer assembly, the working assembly comprises a supporting rod, and the outer wall of the connecting plate is fixedly connected with the supporting rod; a hollow column is fixedly connected to the bottom of the supporting rod, a sliding column is slidably connected to the inner wall of the hollow column, the buffering assembly comprises a first spring, the first spring is arranged on the outer wall of the sliding column, a connecting ring is fixedly connected to the bottom end of the sliding column, and a supporting head is fixedly connected to the bottom of the connecting ring. A user descends the equipment for parking, a supporting head can be inserted into the ground, a certain fixing effect is achieved, at the moment, a sliding column can retract into a sliding groove formed in a hollow-out column, the buffering and supporting effect is achieved through a first spring, the impact force of the unmanned aerial vehicle and the ground is reduced, and the internal equipment is prevented from being damaged by vibration.

Description

Technical Field

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

[0002] The drone landing gear is an important part of the drone. It is located at the bottom of the drone and is used to support the entire drone structure and provide stability during takeoff and landing.

[0003] For example, the Chinese utility model patent (CN 212921957 U) provides a UAV landing gear device, which relates to the technical field of UAVs. A UAV landing gear device includes a main body, which includes two landing units, and the two landing units are respectively located on both sides of the main body; the landing unit includes a bottom rod and a cylinder connected to each other; the tops of the two landing units are connected by a fixed plate; the cylinders of the two landing units are gas-connected through a pipeline. The UAV landing gear device adopts cylinder transmission, and the two cylinders are connected in series, so that the two sides of the landing gear device can achieve the function of extending one end and retracting the other end, which is convenient for taking off and landing on an inclined plane. Secondly, the landing gear device adopts cylinder transmission, which has a larger telescopic amount and better shock absorption effect.

[0004] However, in the above patent, when the drone falls, the impact force is reduced by a buffer structure, but the landing gear of the patent is in parallel contact with the ground and has a rod-shaped contact surface. The grip of this structure is weak and cannot effectively reduce the shaking of the drone when in contact. In addition, the fall force is large, and a single buffer structure cannot effectively ensure that the equipment can be fully buffered. A large impact will still cause damage to the drone parts. Therefore, a drone landing gear is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a landing gear for a UAV, which solves the problem in the prior art that the landing gear is in parallel contact with the ground and has a rod-shaped contact surface. The structure has a weak grip on the ground and cannot effectively reduce the shaking of the UAV when in contact. In addition, the falling force is large, and a single buffer structure cannot effectively ensure that the equipment can be fully buffered. A large impact will still cause damage to the UAV parts.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a UAV landing gear, comprising a connecting plate and a buffer mechanism arranged at the bottom of the connecting plate, wherein the buffer mechanism comprises a working component and a buffer component;

[0007] The working assembly comprises a support rod, the outer wall of the connecting plate is fixedly connected to the support rod, the bottom of the support rod is fixedly connected to a hollow column, and the inner wall of the hollow column is slidably connected to a sliding column;

[0008] The buffer assembly comprises a first spring, the outer wall of the sliding column is provided with the first spring, the bottom end of the sliding column is fixedly connected with a connecting ring, and the bottom of the connecting ring is fixedly connected with a supporting head.

[0009] Preferably, the bottom of the connecting plate is fixedly connected to a fixing column, the outer wall of the fixing column is fixedly connected to a limiting column, the outer wall of the limiting column is provided with a second spring, the outer wall of the limiting column is slidably connected to a sliding ring, the outer wall of the sliding ring is rotatably connected to a connecting rod, one end of the connecting plate is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is rotatably connected to a fixing plate, and the bottom end of the fixing plate is fixedly connected to a connecting plate.

[0010] Preferably, the hollow column is provided with a sliding groove which matches the sliding column, and the sliding column forms a sliding structure with the hollow column via a connecting ring.

[0011] Preferably, the hollow column, sliding column, first spring, connecting ring and supporting head are arranged in four groups, and the positional relationship of the four groups of hollow column, sliding column, first spring, connecting ring and supporting head is symmetrically distributed about the center of the connecting plate.

[0012] Preferably, the bottom of the connecting ring is fixedly connected to the top of the supporting head, and the supporting head has a conical appearance.

[0013] Preferably, the sliding ring is provided with a sliding groove which matches the limiting column, and the sliding ring forms a sliding structure with the limiting column through a connecting rod.

[0014] Preferably, the limit column, the second spring, the sliding ring, the connecting rod, the rotating shaft, the fixed plate and the connecting plate are arranged in four groups, and the positional relationship of the four groups of the limit column, the second spring, the sliding ring, the connecting rod, the rotating shaft, the fixed plate and the connecting plate is symmetrically distributed about the center of the connecting plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting the support head, the user lowers the device for parking, and the support head will be inserted into the ground to play a certain fixing effect. At this time, the sliding column will shrink into the slide groove opened by the hollow column, relying on the first spring to play a buffering support effect, reducing the impact force of the drone on the ground and preventing internal equipment from being damaged.

[0017] 2. By setting a connecting rod, when the drone is parked, the connecting ring will drive the connecting plate to rise and fall, and the connecting plate will push the connecting rod to move, so that the connecting rod pushes the sliding ring to slide on the outer wall of the limit column, allowing the second spring to provide buffering power and play a lateral buffering effect. When the drone falls, the impact force of the fall is large, preventing the inability to ensure that the buffering force of the equipment can protect the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a first-person structural diagram of a UAV landing gear proposed by the utility model;

[0019] Figure 2 This is a second-view structural diagram of a UAV landing gear proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of a buffer structure of a UAV landing gear proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the sliding structure of a UAV landing gear.

[0022] In the figure: 1. connecting plate; 2. supporting rod; 3. hollow column; 4. sliding column; 5. first spring; 6. connecting ring; 7. supporting head; 8. fixed column; 9. limiting column; 10. second spring; 11. sliding ring; 12. connecting rod; 13. rotating shaft; 14. fixing plate; 15. connecting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1-4 As shown, a UAV landing gear shown in the figure includes a connecting plate 1 and a buffer mechanism arranged at the bottom of the connecting plate 1, and the buffer mechanism includes a working component and a buffer component;

[0026] The working assembly includes a support rod 2, the outer wall of the connecting plate 1 is fixedly connected to the support rod 2, the bottom of the support rod 2 is fixedly connected to a hollow column 3, and the inner wall of the hollow column 3 is slidably connected to a sliding column 4;

[0027] The buffer assembly includes a first spring 5 . The outer wall of the sliding column 4 is provided with a first spring 55 . The bottom end of the sliding column 4 is fixedly connected with a connecting ring 6 . The bottom of the connecting ring 6 is fixedly connected with a supporting head 7 .

[0028] Among them, Figure 3 As shown, the hollow column 3 is provided with a sliding groove that matches the sliding column 4. The sliding column 4 forms a sliding structure with the hollow column 3 through the connecting ring 6, which is conducive to shrinking the sliding column 4 into the groove of the hollow column 3, providing a buffer distance for the equipment to prevent the equipment from falling.

[0029] Among them, Figure 3 As shown, four groups of hollow columns 3, sliding columns 4, first springs 5, connecting rings 6 and supporting heads 7 are provided. The positional relationship of the four groups of hollow columns 3, sliding columns 4, first springs 5, connecting rings 6 and supporting heads 7 are symmetrically distributed about the center of the connecting plate 1, which is conducive to ensuring that the equipment can be parked in uneven areas to achieve a buffering effect.

[0030] Among them, Figure 2 As shown, the bottom of the connecting ring 6 is fixedly connected to the top of the supporting head 7, and the supporting head 7 has a conical appearance, which is conducive to the stable insertion of the supporting head 7 into the plot and prevents the supporting frame from shaking during the falling process.

[0031] Example 2

[0032] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment further illustrates Example 1, the bottom of the connecting plate 1 is fixedly connected with a fixing column 8, the outer wall of the fixing column 8 is fixedly connected with a limiting column 9, the outer wall of the limiting column 9 is provided with a second spring 10, the outer wall of the limiting column 9 is slidably connected with a sliding ring 11, the outer wall of the sliding ring 11 is rotatably connected with a connecting rod 12, one end of the connecting plate 1 is fixedly connected with a rotating shaft 13, the outer wall of the rotating shaft 13 is rotatably connected with a fixing plate 14, and the bottom end of the fixing plate 14 is fixedly connected with a connecting plate 15.

[0033] Among them, Figure 4 As shown, the sliding ring 11 is provided with a sliding groove that matches the limiting column 9. The sliding ring 11 forms a sliding structure with the limiting column 9 through the connecting rod 12, which is conducive to the sliding ring 11 sliding on the outer wall of the limiting column 9 through the second spring 10 to achieve a lateral buffering effect.

[0034] Among them, Figure 1 As shown, four groups of limit columns 9, second springs 10, sliding rings 11, connecting rods 12, rotating shafts 13, fixed plates 14 and connecting plates 15 are provided. The positional relationship of the four groups of limit columns 9, second springs 10, sliding rings 11, connecting rods 12, rotating shafts 13, fixed plates 14 and connecting plates 15 are symmetrically distributed about the center of the connecting plate 1, which is conducive to buffering the equipment on uneven ground.

[0035] When in use: First, the user lowers the device to park it, and the support head 7 is inserted into the ground to achieve a certain fixing effect. At this time, the sliding column 4 is retracted into the slide groove provided by the hollow column 3, and the first spring 5 is used to achieve a buffering support effect, thereby reducing the impact of the drone with the ground and preventing the internal equipment from being damaged;

[0036] Finally, when the drone is parked, the connecting ring 6 will drive the connecting plate 15 to rise and fall, and the connecting plate 15 will push the connecting rod 12 to move, so that the connecting rod 12 pushes the sliding ring 11 to slide on the outer wall of the limiting column 9, allowing the second spring 10 to provide buffering power to achieve a lateral buffering effect. When the drone falls, the impact force of the fall is relatively large, preventing the inability to ensure that the buffering force of the equipment can protect the drone.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drone landing gear, comprising a connecting plate (1) and a buffer mechanism arranged at the bottom of the connecting plate (1), characterized in that: The buffer mechanism comprises a working component and a buffer component; The working assembly comprises a support rod (2), the outer wall of the connecting plate (1) is fixedly connected to the support rod (2), the bottom of the support rod (2) is fixedly connected to a hollow column (3), and the inner wall of the hollow column (3) is slidably connected to a sliding column (4); The buffer assembly comprises a first spring (5), the outer wall of the sliding column (4) is provided with a first spring (5) 5, the bottom end of the sliding column (4) is fixedly connected to a connecting ring (6), and the bottom of the connecting ring (6) is fixedly connected to a supporting head (7).

2. The UAV landing gear according to claim 1, characterized in that: The bottom of the connecting plate (1) is fixedly connected to a fixing column (8), the outer wall of the fixing column (8) is fixedly connected to a limiting column (9), the outer wall of the limiting column (9) is provided with a second spring (10), the outer wall of the limiting column (9) is slidably connected to a sliding ring (11), the outer wall of the sliding ring (11) is rotatably connected to a connecting rod (12), one end of the connecting plate (1) is fixedly connected to a rotating shaft (13), the outer wall of the rotating shaft (13) is rotatably connected to a fixing plate (14), and the bottom end of the fixing plate (14) is fixedly connected to a connecting plate (15).

3. The UAV landing gear according to claim 1, characterized in that: The hollow column (3) is provided with a sliding groove that matches the sliding column (4), and the sliding column (4) forms a sliding structure with the hollow column (3) via a connecting ring (6).

4. The UAV landing gear according to claim 1, characterized in that: The hollow column (3), the sliding column (4), the first spring (5), the connecting ring (6) and the supporting head (7) are arranged in four groups, and the positional relationship of the four groups of the hollow column (3), the sliding column (4), the first spring (5), the connecting ring (6) and the supporting head (7) is symmetrically distributed about the center of the connecting plate (1).

5. The UAV landing gear according to claim 1, characterized in that: The bottom of the connecting ring (6) is fixedly connected to the top of the supporting head (7), and the supporting head (7) has a conical appearance.

6. The UAV landing gear according to claim 2, characterized in that: The sliding ring (11) is provided with a sliding groove that matches the limiting column (9), and the sliding ring (11) forms a sliding structure with the limiting column (9) through a connecting rod (12).

7. The UAV landing gear according to claim 2, characterized in that: The limiting column (9), the second spring (10), the sliding ring (11), the connecting rod (12), the rotating shaft (13), the fixed plate (14) and the connecting plate (15) are arranged in four groups, and the positional relationship of the four groups of the limiting column (9), the second spring (10), the sliding ring (11), the connecting rod (12), the rotating shaft (13), the fixed plate (14) and the connecting plate (15) is symmetrically distributed about the center of the connecting plate (1).

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