A kind of unmanned aerial vehicle and its parachute opening device

Abstract

The invention relates to a parachute opening device for an unmanned aerial vehicle, which includes a parachute barrel and a parachute built in the parachute barrel, and also includes a gas generator arranged in the parachute barrel and below the parachute. When the parachute needs to be opened, the gas generator instantly releases a large amount of high-pressure gas, and the parachute will be pushed out of the parachute barrel by the instantaneously released high-pressure gas, and reach the appropriate parachute opening height. Compared with the current spring push-out method, because the high-pressure gas released by the gas generator has higher energy, it can push the parachute to a safe parachute opening height, effectively avoiding the entanglement of the parachute rope by the propeller, and ensuring the smooth opening of the parachute. The present invention also relates to an unmanned aerial vehicle using the parachute opening device.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle and a parachute opening device thereof. Background technique [0002] During the flight, if the fuel of the UAV is exhausted or the UAV suddenly breaks down, it is prone to an emergency fall. In order to prevent the UAV from crashing, the current UAV is generally equipped with a parachute. [0003] In the prior art, when the parachute on the UAV is opened, it needs to use the elastic force of the spring to eject the parachute from the umbrella barrel. However, due to the limited elastic force of the spring, the height of the parachute ejection is too low, and it is very easy for the parachute to wrap around the propeller of the UAV. If the parachute fails to open, it will cause the UAV to crash and cause large economic losses. [0004] Therefore, how to ensure that the parachute pops up to a suitable height and avoid the situation wher...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when the parachute on the UAV is opened, it needs to use the elastic force of the spring to eject the parachute from the umbrella barrel. However, due to the limited elastic force of the spring, the height of the parachute ejection is too low, and it is very easy for the parachute to wrap around the propeller of the UAV. If the parachute fails to open, it will cause the drone to crash and cause large economic losses

[0004] Therefore, how to ensure that the parachute pops up to a suitable height and avoid the situation where the parachute fails to open due to the parachute being wrapped around the propeller is a technical problem that those skilled in the art need to solve urgently.

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