Unmanned aerial vehicle undercarriage

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle undercarriage which comprises a vehicle body fixedly provided with a plurality of blades, and further comprises a top plate, the number of the telescopic supporting leg mechanisms is two, the two telescopic supporting leg mechanisms are rotationally connected to the two sides of the bottom of the top plate correspondingly, and the telescopic supporting leg mechanisms are designed in a split mode; and the sliding adjusting mechanism is fixedly connected to the bottom of the top plate, and a first connecting rod and a second connecting rod are rotationally connected between the sliding adjusting mechanism and the telescopic supporting leg mechanism. The distance between the blades and the take-off and landing ground can be adjusted through the sliding adjusting mechanism and the telescopic supporting leg mechanism so as to adapt to the take-off and landing ground of grass with different heights, the applicability is improved, the overall length of the unmanned aerial vehicle landing gear in the transverse direction and the vertical direction can be adjusted through the telescopic supporting leg mechanism, storage and transportation are convenient, and convenience is improved.

Description

Technical Field

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

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device. It is mainly composed of a fuselage and blades fixed to the fuselage. When a drone takes off and lands, it usually needs a landing ground. Some landing grounds have grass growing on them. In order to reduce the collision between the blades and the grass, a landing gear is usually installed at the bottom of the fuselage. The landing gear raises the height of the fuselage, thereby increasing the distance between the blades and the ground, making it easier for the drone to take off and land on the landing ground with grass.

[0003] The height of existing UAV landing gear is usually fixed. During the take-off and landing of the UAV, if the height of the landing gear is small, the blades of the UAV may easily collide with the grass, causing damage to the blades. This makes it inconvenient to adapt to the take-off and landing ground with grass of different heights, and the applicability is insufficient. Moreover, after the landing gear is installed on the UAV body, it is generally fixed, which is inconvenient to store and transport, and the convenience is insufficient. Utility Model Content

[0004] The purpose of the utility model is to provide a UAV landing gear, which can adjust the distance between the blades and the landing ground through a sliding adjustment mechanism and a telescopic leg mechanism to adapt to the landing ground with grass of different heights and improve applicability, and can adjust the overall length of the UAV landing gear in the horizontal and vertical directions through the telescopic leg mechanism, which is convenient for storage and transportation and improves convenience.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A drone landing gear comprises a body, on which a plurality of blades are fixedly mounted, and further comprises:

[0007] A top plate, the top plate being fixedly mounted on the bottom of the machine body;

[0008] A telescopic leg mechanism, wherein two telescopic leg mechanisms are provided and are rotatably connected to the bottom sides of the top plate respectively, and the telescopic leg mechanism is a split design;

[0009] A sliding adjustment mechanism, wherein the sliding adjustment mechanism is fixedly connected to the bottom of the top plate, and a first connecting rod and a second connecting rod are rotatably connected between the sliding adjustment mechanism and the telescopic leg mechanism;

[0010] Wherein, after the sliding adjustment mechanism is actuated, the telescopic leg mechanism is driven to rotate through the first connecting rod, and at the same time, the telescopic leg mechanism is driven to extend or shorten through the second connecting rod.

[0011] The telescopic leg mechanism includes a first leg rotatably connected to the bottom of the top plate, a second leg is slidably sleeved on the lower end of the first leg, a plurality of first limiting holes are opened inside the first leg, a second limiting hole is opened inside the second leg, and a first limiting pin is slidably penetrated inside the first limiting hole and the second limiting hole.

[0012] The sliding adjustment mechanism includes a slide plate fixedly connected to the bottom of the top plate, the outside of the slide plate is slidably connected to a slider, the inside of the slide plate is provided with a plurality of third limiting holes, the inside of the slider is provided with a fourth limiting hole, and a second limiting pin is slidably penetrated through the inside of the third limiting holes and the fourth limiting holes.

[0013] A sliding groove is provided inside the sliding plate, a sliding bar is fixedly connected to the sliding block, and the sliding bar is slidably matched with the sliding groove.

[0014] The first connecting rod is rotatably connected between the first supporting leg and the sliding block, and the second connecting rod is rotatably connected between the second supporting leg and the sliding block.

[0015] Both ends of the bottom of the telescopic leg mechanism are sleeved with anti-wear sleeves.

[0016] The technical effects achieved by the utility model are:

[0017] The sliding adjustment mechanism and telescopic leg mechanism provided in the utility model can adjust the distance between the blade and the take-off and landing ground. After the sliding adjustment mechanism is actuated, the telescopic leg mechanism is driven to rotate, and the telescopic leg mechanism is simultaneously driven to extend or shorten. The height of the telescopic leg mechanism in the vertical direction can be adjusted by changing the rotation angle and the telescopic length of the telescopic leg mechanism at the same time, thereby facilitating the adjustment of the distance between the blade and the take-off and landing ground, adapting to the take-off and landing ground with grass of different heights, and improving applicability.

[0018] The telescopic leg mechanism provided in the utility model can adjust the overall length of the UAV landing gear in the horizontal and vertical directions after actuation. After the second connecting rod is disassembled, the telescopic leg mechanism is rotated inwardly to reduce the overall horizontal length of the landing gear. The second leg is slid upward along the first leg to reduce the overall vertical length of the landing gear, thereby facilitating storage and transportation and improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the telescopic leg mechanism and the sliding adjustment mechanism in the utility model;

[0021] Figure 3 It is an exploded schematic diagram of the telescopic leg mechanism in the utility model;

[0022] Figure 4 It is an exploded schematic diagram of the sliding adjustment mechanism in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 10. Machine body; 11. Blades; 20. Top plate; 30. Telescopic leg mechanism; 31. First leg; 311. First limiting hole; 32. Second leg; 321. Second limiting hole; 33. First limiting pin; 40. Sliding adjustment mechanism; 41. Slide plate; 411. Third limiting hole; 412. Slide groove; 42. Sliding block; 421. Fourth limiting hole; 422. Sliding bar; 43. Second limiting pin; 50. First connecting rod; 60. Second connecting rod; 70. Anti-wear sleeve. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of the utility model, and does not strictly limit the scope of protection of the specific request of the utility model.

[0026] like Figure 1 and Figure 2 As shown, a UAV landing gear includes a body 10, on which a plurality of blades 11 are fixedly mounted, and further includes:

[0027] A top plate 20, the top plate 20 is fixedly mounted on the bottom of the body 10;

[0028] The telescopic leg mechanism 30 is provided with two telescopic leg mechanisms 30 and is rotatably connected to the bottom sides of the top plate 20 respectively. The telescopic leg mechanism 30 is a split design;

[0029] A sliding adjustment mechanism 40, the sliding adjustment mechanism 40 is fixedly connected to the bottom of the top plate 20, and a first connecting rod 50 and a second connecting rod 60 are rotatably connected between the sliding adjustment mechanism 40 and the telescopic leg mechanism 30;

[0030] After the sliding adjustment mechanism 40 is actuated, the telescopic leg mechanism 30 is driven to rotate through the first connecting rod 50 , and the telescopic leg mechanism 30 is driven to extend or shorten through the second connecting rod 60 .

[0031] It should be noted that the second connecting rod 60 and the sliding adjustment mechanism 40 are detachably connected, and the second connecting rod 60 and the telescopic leg mechanism 30 are detachably connected.

[0032] In this embodiment, after the sliding adjustment mechanism 40 is actuated, it drives the first connecting rod 50 to rotate, and the first connecting rod 50 drives the telescopic leg mechanism 30 to rotate along the bottom of the top plate 20, so that after the second connecting rod 60 is rotated, the telescopic leg mechanism 30 is synchronously extended or shortened. When the telescopic leg mechanism 30 rotates, the height of the telescopic leg mechanism 30 in the vertical direction increases or decreases. When the telescopic leg mechanism 30 is extended or shortened, the height of the telescopic leg mechanism 30 in the vertical direction increases or decreases. Therefore, the telescopic leg mechanism 30 is synchronously extended or shortened by the sliding adjustment mechanism 40 in the process of driving the telescopic leg mechanism 30 to rotate, so as to adjust the distance between the blade 11 and the landing ground, adapt to the landing ground with grass of different heights, and improve applicability. After the second connecting rod 60 is removed, the telescopic leg mechanism 30 is rotated inwardly, so that the overall length of the landing gear is reduced in the lateral direction. After shortening the telescopic leg mechanism 30, the overall length of the landing gear in the vertical direction is reduced, which is convenient for storage and transportation and improves convenience.

[0033] like Figure 2 and Figure 3 As shown, the telescopic leg mechanism 30 includes a first leg 31 rotatably connected to the bottom of the top plate 20, a second leg 32 is slidably sleeved on the lower end of the first leg 31, a plurality of first limiting holes 311 are opened inside the first leg 31, a second limiting hole 321 is opened inside the second leg 32, and a first limiting pin 33 is slidably penetrated inside the first limiting hole 311 and the second limiting hole 321.

[0034] It should be noted that, in the initial state, the first limiting pin 33 is not inserted into the first limiting hole 311 and the second limiting hole 321 .

[0035] In this embodiment, when it is necessary to reduce the length of the telescopic leg mechanism 30, the first limit pin 33 is pulled out from the first limit hole 311 and the second limit hole 321, and the second leg 32 is slid upward along the first leg 31 so that the second limit hole 321 corresponds to the first limit hole 311 at an appropriate position, and the first limit pin 33 is inserted into the second limit hole 321 and the first limit hole 311 to limit the second leg 32 and the first leg 31, thereby shortening the distance between the second leg 32 and the first leg 31, reducing the length of the telescopic leg mechanism 30, facilitating storage and transportation, and improving convenience.

[0036] like Figure 2 and Figure 4As shown, the sliding adjustment mechanism 40 includes a slide plate 41 fixedly connected to the bottom of the top plate 20, the outside of the slide plate 41 is slidably connected to a slider 42, a plurality of third limiting holes 411 are provided inside the slide plate 41, a fourth limiting hole 421 is provided inside the slider 42, and a second limiting pin 43 is slidably penetrated inside the third limiting holes 411 and the fourth limiting holes 421.

[0037] In this embodiment, when it is necessary to limit the slide plate 41 and the slider 42, the slider 42 is slid up and down along the slide plate 41 so that the fourth limiting hole 421 corresponds to the third limiting hole 411 at the appropriate position, and the second limiting pin 43 is inserted into the fourth limiting hole 421 and the third limiting hole 411 to limit the slide plate 41 and the slider 42, so that the relative position between the slider 42 and the slide plate 41 remains fixed, thereby improving stability.

[0038] like Figure 2 and Figure 4 As shown, a slide groove 412 is provided inside the slide plate 41 , and a slide bar 422 is fixedly connected to the slide block 42 , and the slide bar 422 is slidably matched with the slide groove 412 .

[0039] It should be noted that the cross-sectional shapes of the slide bar 422 and the slide groove 412 are both dovetail-shaped or T-shaped.

[0040] In this embodiment, the slide bar 422 cooperates with the slide groove 412 , so that the sliding process of the slider 42 along the slide plate 41 is more stable.

[0041] like Figure 1 and Figure 2 As shown, the first connecting rod 50 is rotatably connected between the first supporting leg 31 and the sliding block 42 , and the second connecting rod 60 is rotatably connected between the second supporting leg 32 and the sliding plate 41 .

[0042] It should be noted that one end of the second connecting rod 60 is detachably connected to the second leg 32 , and the other end of the second connecting rod 60 is detachably connected to the slide plate 41 .

[0043] In this embodiment, when it is necessary to adjust the distance between the blade 11 and the take-off and landing ground, the slider 42 is slid up and down along the slide plate 41. The slider 42 drives the first leg 31 to rotate along the bottom of the top plate 20 through the first connecting rod 50, and the first leg 31 drives the second leg 32 to rotate. Since the second connecting rod 60 is rotatably connected between the second leg 32 and the slide plate 41, the second connecting rod 60 drives the second leg 32 to slide up and down along the first leg 31 after the second connecting rod 60 rotates, thereby facilitating the sliding adjustment mechanism 40 to synchronously drive the telescopic leg mechanism 30 to extend or shorten during the process of driving the telescopic leg mechanism 30 to rotate, thereby facilitating the adjustment of the distance between the blade 11 and the take-off and landing ground.

[0044] like Figure 1 , Figure 2 and Figure 3 As shown, both ends of the bottom of the telescopic leg mechanism 30 are covered with anti-wear sleeves 70.

[0045] It should be noted that the anti-wear sleeve 70 is made of elastic material, and there is an interference fit between the anti-wear sleeve 70 and the telescopic leg mechanism 30 .

[0046] In this embodiment, during the take-off and landing process of the UAV, the anti-wear sleeve 70 prevents the bottom of the telescopic leg mechanism 30 from contacting the take-off and landing ground, reducing the possibility of damage caused by collision between the bottom of the telescopic leg mechanism 30 and debris such as gravel on the take-off and landing ground, thereby increasing the service life of the telescopic leg mechanism 30.

[0047] The working principle of the utility model is as follows: when it is necessary to adjust the distance between the blade 11 and the take-off and landing ground, the sliding adjustment mechanism 40 drives the telescopic leg mechanism 30 to rotate along the bottom of the top plate 20 through the first connecting rod 50 after the operation, so that the second connecting rod 60 drives the telescopic leg mechanism 30 to extend or shorten synchronously after the rotation, thereby increasing or decreasing the height of the telescopic leg mechanism 30 in the vertical direction, so as to adjust the distance between the blade 11 and the take-off and landing ground, adapt to the take-off and landing ground with grass of different heights, and improve applicability. After the second connecting rod 60 is removed, the telescopic leg mechanism 30 can adjust the overall horizontal and vertical lengths of the UAV landing gear after the operation, so as to facilitate storage and transportation and improve convenience.

[0048] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be regarded as the protection scope of this utility model. The structures, devices and operating methods not specifically described and explained in this utility model shall be implemented according to the conventional means in this field unless otherwise specified and limited.

Claims

1. A UAV landing gear, characterized in that: The invention comprises a machine body (10), on which a plurality of blades (11) are fixedly mounted, and further comprises: A top plate (20), the top plate (20) being fixedly mounted on the bottom of the machine body (10); A telescopic leg mechanism (30), wherein two telescopic leg mechanisms (30) are provided and are rotatably connected to two sides of the bottom of the top plate (20), respectively, and the telescopic leg mechanism (30) is of a split design; A sliding adjustment mechanism (40), the sliding adjustment mechanism (40) being fixedly connected to the bottom of the top plate (20), and a first connecting rod (50) and a second connecting rod (60) being rotatably connected between the sliding adjustment mechanism (40) and the telescopic leg mechanism (30); Wherein, after the sliding adjustment mechanism (40) is actuated, the telescopic leg mechanism (30) is driven to rotate via the first connecting rod (50), and at the same time, the telescopic leg mechanism (30) is driven to extend or shorten via the second connecting rod (60).

2. The UAV landing gear according to claim 1, characterized in that: The telescopic leg mechanism (30) comprises a first leg (31) rotatably connected to the bottom of the top plate (20); a second leg (32) is slidably sleeved on the lower end of the first leg (31); a plurality of first limiting holes (311) are provided inside the first leg (31); a second limiting hole (321) is provided inside the second leg (32); and a first limiting pin (33) is slidably penetrated inside the first limiting hole (311) and the second limiting hole (321).

3. The UAV landing gear according to claim 2, characterized in that: The sliding adjustment mechanism (40) comprises a sliding plate (41) fixedly connected to the bottom of the top plate (20); the outside of the sliding plate (41) is slidably connected to a sliding block (42); a plurality of third limiting holes (411) are provided inside the sliding plate (41); a fourth limiting hole (421) is provided inside the sliding block (42); and a second limiting pin (43) is slidably penetrated inside the third limiting holes (411) and the fourth limiting holes (421).

4. The UAV landing gear according to claim 3, characterized in that: A sliding groove (412) is provided inside the sliding plate (41), a sliding bar (422) is fixedly connected to the sliding block (42), and the sliding bar (422) is slidably matched with the sliding groove (412).

5. The UAV landing gear according to claim 3, characterized in that: The first connecting rod (50) is rotatably connected between the first supporting leg (31) and the sliding block (42), and the second connecting rod (60) is rotatably connected between the second supporting leg (32) and the sliding block (41).

6. The UAV landing gear according to claim 1, characterized in that: Both ends of the bottom of the telescopic leg mechanism (30) are sleeved with anti-wear sleeves (70).

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