Protective unit partition door of civil air defence

A protective unit partition door of civil air defense engineering comprises a door leaf and a door frame which are connected by a hinge and a closed lock for connecting the door leaf and the door frame. The utility model is characterized in that an overturning type sealing bridge is arranged on the lower edge of the door leaf. Two stickers are arranged on the sealing bridge to be opposite to the door leaf and ground. The sealing bridge is driven by at least two pairs of crank rocker lifting mechanisms to realize the sealing of the lower edge of the door leaf and ground. The horizontal axis of the crank rocker lifting mechanism is hinged with a support base and joggled with a crossing axis vertically. The crossing axis passes through the door leaf, two ends of the crossing axis are operated by handles. The hinge is the double axis hinge, which can rotate and translate. The protective unit partition door bears stress in double directions without doorsill. Two leaves rotate vertically. The utility model is of reasonable structure, convenient application, simple operation, flexible open or close, economical applicability and convenient maintenance, thereby being applicable to partition among protective units for civil air defense engineering and realizing protective closure of partition.