Civil air defense door with reinforced concrete structure

The utility model provides a civil air defense door with a reinforced concrete structure, which belongs to the technical field of civil air defense doors and comprises an outer frame. The civil air defense door main body is connected with the outer frame through two groups of rotating assemblies; the relief printing plate is fixedly connected to one side end of the civil air defense door main body; the rotating groove is formed in the relief printing plate; according to the civil air defense door locking device, when the civil air defense door body and the outer frame are closed, the locking plate in the locking mechanism is indirectly driven to slide into the positioning groove under the elastic force action of the spring, and closing of the civil air defense door body and the outer frame is completed; the locking plate and the positioning groove are tightly connected through the elastic action of the spring, the locking plate cannot be separated from the positioning groove, the civil air defense door body i