阅读说明：本技术 一种无人机缓冲起落架 (Unmanned aerial vehicle buffering undercarriage ) 是由 胡国军 乔晓利 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种无人机缓冲起落架,包括安装板、支撑架、机轮架、拉簧和机轮,所述支撑架固定设置在安装板下方,所述支撑架中下段转动设置有第一转轴,所述第一转轴上固定设置机轮架,所述第一转轴中间环绕设置有卡齿；所述支撑架的下端转动设置有第二转轴,所述第二转轴外端设置有紧固旋钮,所述第二转轴中间设置有金属片,所述金属片末端从前侧抵触卡齿；所述机轮架顶部转动设置有第三转轴,所述第三转轴与安装板之间设置有拉簧,所述机轮架末端固定设置有第四转轴,所述第四转轴上转动设置有机轮。本发明通过拉簧吸收无人机着陆时机轮与地面之间的碰撞能量,并阻止拉簧收缩释放能量,避免无人机在着陆时发生反弹,提高了无人机着陆的稳定性。(The invention discloses an unmanned aerial vehicle buffering undercarriage which comprises a mounting plate, a supporting frame, a wheel frame, a tension spring and an airplane wheel, wherein the supporting frame is fixedly arranged below the mounting plate; a second rotating shaft is rotatably arranged at the lower end of the supporting frame, a fastening knob is arranged at the outer end of the second rotating shaft, a metal sheet is arranged in the middle of the second rotating shaft, and the tail end of the metal sheet abuts against the latch from the front side; the aircraft wheel frame top rotates and is provided with the third pivot, be provided with the extension spring between third pivot and the mounting panel, the fixed fourth pivot that is provided with in aircraft wheel frame end, it is provided with the wheel to rotate in the fourth pivot. According to the invention, the tension spring is used for absorbing the collision energy between the airplane wheel and the ground when the unmanned aerial vehicle lands, and preventing the tension spring from contracting to release energy, so that the unmanned aerial vehicle is prevented from rebounding when the unmanned aerial vehicle lands, and the landing stability of the unmanned aerial vehicle is improved.)

1. The utility model provides an unmanned aerial vehicle buffering undercarriage, includes mounting panel (1), support frame (2), locomotive frame (3), extension spring (4) and wheel (5), its characterized in that: the mounting plate (1) is provided with a screw hole (6), and the mounting plate (1) penetrates through the screw hole (6) through a threaded fixing piece to be fixedly connected with the unmanned aerial vehicle; the supporting frame (2) is fixedly arranged below the mounting plate (1), a first rotating shaft (7) is rotatably arranged at the middle lower section of the supporting frame (2), and a wheel frame (3) is fixedly arranged on the first rotating shaft (7) so that the wheel frame (3) rotates synchronously along with the first rotating shaft (7); the middle of the first rotating shaft (7) is provided with a latch (8) in a surrounding way; a second rotating shaft (9) is rotatably arranged at the lower end of the support frame (2), a fastening knob (10) is arranged at the outer end of the second rotating shaft (9), a metal sheet (11) is arranged in the middle of the second rotating shaft (9), and the tail end of the metal sheet (11) abuts against the latch (8) from the front side, so that the first rotating shaft (7) can only rotate backwards in the anticlockwise direction; the aircraft wheel frame (3) top is rotated and is provided with third pivot (12), be provided with extension spring (4) between third pivot (12) and mounting panel (1), aircraft wheel frame (3) end is fixed and is provided with fourth pivot (13), it is provided with wheel (5) to rotate on fourth pivot (13).

2. An unmanned aerial vehicle landing gear according to claim 1, wherein at least two screw holes (6) are uniformly arranged.

3. An unmanned aerial vehicle landing gear according to claim 1, wherein the wheels (5) are coaxially arranged in two.

4. An unmanned aerial vehicle buffering undercarriage according to claim 1 characterized in that the extension springs (4) are arranged three equidistant.

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a buffering undercarriage of an unmanned aerial vehicle.

Background

At present, all-metal materials are mostly adopted for the undercarriage of the unmanned aerial vehicle, and a buffer structure is arranged to ensure the safety of the unmanned aerial vehicle during landing. However, because the descending speed of the unmanned aerial vehicle is fast when landing, the impact force is large, the unmanned aerial vehicle is easy to bounce and bump when landing, so that the unmanned aerial vehicle rolls and damages equipment.

Disclosure of Invention

In order to overcome the defect that the unmanned aerial vehicle is easy to bounce and bump in the landing process, the invention provides the buffering undercarriage of the unmanned aerial vehicle.

The technical scheme adopted by the invention for solving the technical problems is as follows: an unmanned aerial vehicle buffering undercarriage comprises a mounting plate, a supporting frame, a wheel frame, a tension spring and wheels, wherein the mounting plate is provided with a screw hole and is fixedly connected with an unmanned aerial vehicle through a threaded fixing piece penetrating through the screw hole; the supporting frame is fixedly arranged below the mounting plate, a first rotating shaft is rotatably arranged at the middle lower section of the supporting frame, and a wheel frame is fixedly arranged on the first rotating shaft, so that the wheel frame rotates synchronously along with the first rotating shaft; the middle of the first rotating shaft is provided with clamping teeth in a surrounding manner; a second rotating shaft is rotatably arranged at the lower end of the supporting frame, a fastening knob is arranged at the outer end of the second rotating shaft, a metal sheet is arranged in the middle of the second rotating shaft, and the tail end of the metal sheet abuts against the latch from the front side, so that the first rotating shaft can only rotate backwards in the anticlockwise direction; the aircraft wheel frame top rotates and is provided with the third pivot, be provided with the extension spring between third pivot and the mounting panel, the fixed fourth pivot that is provided with in aircraft wheel frame end, it is provided with the wheel to rotate in the fourth pivot.

Foretell unmanned aerial vehicle buffering undercarriage, the screw evenly sets up two at least.

Foretell unmanned aerial vehicle buffering undercarriage, the coaxial setting of wheel is two.

Foretell unmanned aerial vehicle buffering undercarriage, the extension spring equidistance sets up threely.

When the unmanned aerial vehicle lands, the wheel collides with the ground, the wheel and the wheel frame rotate anticlockwise and upwards by taking the first rotating shaft as an axis, the tension spring is stretched by the lever principle, and the first rotating shaft can only rotate anticlockwise due to the fact that the metal sheet abuts against the latch of the first rotating shaft, so that the spring cannot rebound after being stretched; according to the invention, the tension spring is used for absorbing the collision energy between the airplane wheel and the ground when the unmanned aerial vehicle lands, and preventing the tension spring from contracting and rebounding to release energy, so that the unmanned aerial vehicle is prevented from rebounding when the unmanned aerial vehicle lands, and the landing stability of the unmanned aerial vehicle is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a front view of a buffering undercarriage for an unmanned aerial vehicle according to the present invention;

fig. 2 is a left side view of a buffering undercarriage for an unmanned aerial vehicle according to the present invention;

fig. 3 is a schematic diagram of a sheet metal anti-reverse structure of the buffering undercarriage of the unmanned aerial vehicle provided by the invention.

In the figure: 1. mounting a plate; 2. a support frame; 3. a frame; 4. a tension spring; 5. a machine wheel; 6. a screw hole; 7. a first rotating shaft; 8. clamping teeth; 9. a second rotating shaft; 10. fastening a knob; 11. a metal sheet; 12. a third rotating shaft; 13. and a fourth rotating shaft.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following further description is made with reference to the accompanying drawings, and it is obvious that the following described drawings are only one embodiment of the present invention, and it is within the scope of the present invention for a person of ordinary skill in the art to obtain other embodiments based on the drawings and the embodiment without any creative effort.

An unmanned aerial vehicle buffering undercarriage comprises a mounting plate 1, a support frame 2, a wheel frame 3, a tension spring 4 and an airplane wheel 5, wherein two screw holes 6 are formed in the mounting plate 1, and the mounting plate 1 penetrates through the screw holes 6 through a threaded fixing piece to be fixedly connected with an unmanned aerial vehicle; the supporting frame 2 is fixedly arranged below the mounting plate 1, a first rotating shaft 7 is rotatably arranged at the middle lower section of the supporting frame 2, and a wheel frame 3 is fixedly arranged on the first rotating shaft 7, so that the wheel frame 3 rotates synchronously with the first rotating shaft 7; the middle of the first rotating shaft 7 is provided with a latch 8 in a surrounding way; a second rotating shaft 9 is rotatably arranged at the lower end of the support frame 2, a fastening knob 10 is arranged at the outer end of the second rotating shaft 9, a metal sheet 11 is arranged in the middle of the second rotating shaft 9, and the tail end of the metal sheet 11 abuts against the latch 8 from the front side, so that the first rotating shaft 7 can only rotate backwards in the anticlockwise direction; 3 tops of wheel carrier are rotated and are provided with third pivot 12, the equidistance is provided with three extension springs 4 between third pivot 12 and the mounting panel 1, 3 end fixed fourth pivots 13 that are provided with of wheel carrier, coaxial rotation is provided with two wheels 5 in the fourth pivots 13.

In the invention, when the unmanned aerial vehicle lands, the wheel 5 touches the ground and collides, the wheel 5 is forced to move upwards relatively, the tension spring 4 is stretched to absorb the collision energy between the wheel 5 and the ground through the lever principle, and meanwhile, the first rotating shaft 7 cannot rotate reversely due to the relative action of the metal sheet 11 and the latch 8, so that the wheel 5 cannot rebound, and the landing stability of the unmanned aerial vehicle is improved. After unmanned aerial vehicle accomplished the landing, manual rotatory fastening knob 10 makes sheetmetal 11 break away from latch 8, makes first pivot 7 can take place antiport, and extension spring 4 release energy, then through manual rotatory fastening knob 10, resets sheetmetal 11 again.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.