Unmanned aerial vehicle and parachute opening device

Abstract

The invention relates to a parachute opening device of an unmanned aerial vehicle. The parachute opening device of the unmanned aerial vehicle comprises a parachute barrel and a parachute which is embedded in the parachute barrel. The parachute opening device of the unmanned aerial vehicle further comprises a gas generator which is arranged in the parachute barrel and positioned under the parachute. When the parachute needs to be opened, the gas generator instantaneously releases a large amount of high pressure gas, the parachute is pushed out of the parachute barrel by the instantaneously released high pressure gas and reaches an appropriate parachute opening height. Compared with the traditional spring pushing mode, the parachute opening device of the unmanned aerial vehicle has the advantages that the parachute can be pushed to the safe parachute opening height because the energy of the high pressure gas instantaneously released by the gas generator is higher so that a parachute cord is effectively prevented from being wound by a propeller and the parachute is guaranteed to be smoothly opened. The invention further relates to the 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 malfunctions, it is prone to an emergency fall. In order to avoid the crash of the UAV, 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 where ...

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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