UAV parachute automatic shedding mechanism

Abstract

The invention discloses an automatic parachute falling mechanism of an unmanned aerial vehicle. The automatic parachute falling mechanism of the unmanned aerial vehicle is used for resolving the technical problem that an existing automatic parachute separation mechanism of the unmanned aerial vehicle is poor in practicability. According to the technical scheme, the automatic parachute falling mechanism of the unmanned aerial vehicle comprises a parachute belt, a parachute belt shaft, an upper falling joint, a lower falling joint, a piston, a ball, a sucking rod, a spring, an electromagnet installation frame, a coil, a magnet, an opening pin and a screw. When a parachute of the unmanned aerial vehicle is landed, the magnet enables the sucking rod to move leftwards and rightwards to press the spring, then the piston is pushed to move rightwards, the ball falls into an arc groove of the piston, restraint to the ball by the upper falling joint and the lower falling joint is eliminated, an unlocking motion is finished, and the upper falling joint and the lower falling joint are separated. Automatic separation of the parachute and the unmanned aerial vehicle is finished, and the problem that when the parachute of the unmanned aerial vehicle is landed, the posture of the recovered parachute is changed and the parachute is opened when recovered due to wind, so that unlocking can not be achieved is resolved. Meanwhile, the problem that in the parachute opening process in the air, due to posture changes of the unmanned aerial vehicle and a parachute pack, the parachute belt may have no restraint force, and the parachute is thrown in wrong actions is avoided.

Description

technical field [0001] The invention relates to a working platform, in particular to an automatic drop-off mechanism for a parachute of an unmanned aerial vehicle. Background technique [0002] UAV recovery is mainly divided into two methods: taxi landing and parachute landing. Rolling and landing has high requirements on the site. For small and medium-sized UAVs, for the sake of easy recovery, parachute landing is often used for recovery. However, under the meteorological conditions with high wind speed, the parachute-landing UAV will be dragged by the parachute to move and bump on the ground, causing great damage to the UAV or the equipment on board. [0003] refer to figure 1 . The document "Chinese Utility Model Patent Authorized Notification No. CN201951713U" discloses an automatic separation mechanism for a drone and a parachute, which includes an outer shell 1, an inner shell 2, a lock cylinder, a spring 3, a safety pin 4 and a sphere 5, and the outer shell 1 Ther...

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the shortcomings of poor practicability of the existing UAV parachute automatic separation mechanism, the present invention provides a UAV parachute automatic detachment mechanism

Complete the automatic separation of the parachute and the UAV, which can avoid the problem that when the UAV lands, the attitude of the recovery parachute will change and become full due to the wind force, resulting in the problem that it cannot be unlocked; Due to the change of posture, there may be a problem that the parachute is not restrained by the parachute, which leads to the problem of parachute throwing by wrong action

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