Composite material civil air defense door sealing performance test overpressure chamber

The utility model relates to the technical field of civil air defense engineering, in particular to a composite material civil air defense door sealing performance test overpressure chamber. The method comprises the steps that firstly, a civil air defense door frame is supported through supporting legs; then, civil air defense sealing strips, civil air defense door leaves, hinges, locks and other parts are installed and debugged to meet the requirements; cutting the vacuum bag according to the size of the door frame and reserving margins on each side; the bonding portion of the door frame and the vacuum bag is cleaned with absolute ethyl alcohol; the edge of the vacuum bag and the smooth surface of the door frame are bonded through a vacuum adhesive tape, the vacuum bag and the surface of the vacuum adhesive tape are fully fused, the bonding position is repeatedly pressed to extrude bubbles, and two circles are bonded in the circumferential direction; an air inlet pipe and a pressure measuring pipe are insert