One-way pressure release valve suitable for pressure control in spacecraft cabin

The invention discloses a one-way pressure release valve suitable for the pressure control in a spacecraft cabin. The one-way pressure release valve suitable for the pressure control in the spacecraftcabin comprises a valve body, a sealing gasket, a piston, a spring, a transition flange, a compression nut and an adjusting nut. When the one-way pressure release valve is initially at a close state,a pressure release point of the valve can be adjusted on a ground stage according to the requirement on the pressure in the returning cabin of a spacecraft. According to the one-way pressure releasevalve suitable for the pressure control in the spacecraft cabin, pressure release and closing are automatically realized through the way that a pressure sensing element senses a pressure difference ofan inner environment and an outer environment of the returning cabin; and the one-way pressure release valve suitable for the pressure control in the spacecraft cabin has closing and heat protectionfunctions, the spacecraft wei