Crosswind overturning prevention device for parachuting of unmanned aerial vehicles

Abstract

The invention discloses a crosswind overturning prevention device for the parachuting of unmanned aerial vehicles, which belongs to the field of unmanned aerial vehicles. The crosswind overturning prevention device disclosed by the invention is characterized by comprising a mechanical releasing part, an ejecting inflation part and an electronic control part, wherein the mechanical releasing part comprises a base, an electromagnet, a spring, a support seat, a rotating shaft, an oscillating arm, a sucking disc and a releasing hook; the ejecting inflation part comprises a hanging ring, a high-pressure air cylinder, an electronic air valve, an ejection tube, an air bag, a sliding sleeve, a tube cap and an elastic inhaul cable; the electronic control part comprises a flight control computer, arelay and a power supply; in the parachuting process of an unmanned aerial vehicle, the air bag is ejected to the tail of the unmanned aerial vehicle together with the ejection tube and is charged with air, and generates a yawing moment; when a crosswind current comes, the body of the unmanned aerial vehicle always aims at the direction of the incoming crosswind current under the action of the yawing moment, thereby avoiding the occurrence of side-turning and overturning situations when the crosswind current is landed. By using the device disclosed by the invention, an unmanned aerial vehiclecan land windward through the yawing moment generated by the air bag; and the device has the advantages of simple structure and convenience in installation, therefore, the device is suitable for the parachuting of unmanned aerial vehicle equipment.

Description

technical field [0001] The invention is a device for improving the safety of the crosswind landing of the unmanned aerial vehicle, which can make the unmanned aerial vehicle always align with the direction of the incoming crosswind during the parachuting process, without the situation that the unmanned aerial vehicle touches the ground and rolls over. It is mainly used in technical fields such as aerospace and drones. Background technique [0002] The parachute landing of drones is a common landing method, and its advantage is that it has low requirements on the landing site. However, due to the low dynamic pressure during the parachute of the UAV, the vertical tail cannot provide enough directional stability torque to align the nose with the direction of the incoming flow. Therefore, the UAV often rolls over and overturns when it touches the ground due to crosswind landing, and even damages the UAV body. [0003] The present invention installs an airbag that can extend ba...

AI Technical Summary

Problems solved by technology

However, due to the low dynamic pressure during the parachute of the UAV, the vertical tail cannot provide enough directional stability torque to align the nose with the direction of the incoming flow.

Therefore, the UAV often rolls over and overturns when it touches the ground due to crosswind landing, and even damages the UAV body.

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