Reinforced concrete protective airtight door leaf

The utility model relates to the technical field of civil air defense engineering protective equipment, in particular to a reinforced concrete protective airtight door leaf. Door frame, long side walls and short side wall edges are arranged on the side walls of the door frame in pairs; the door frame structure is characterized in that a supporting part is fixedly arranged on the inner surface of the side wall of the door frame and comprises a plurality of supporting ribs, the supporting ribs are fixedly connected with the inner surface of the end side wall of the door frame plate and are parallel to a door plate of the door frame, and reinforcing steel bars are erected on the supporting ribs of the long side wall and the supporting ribs of the short side wall layer by layer to form a reinforcing steel bar net. 本实用新型涉及人防工程防护设备技术领域，更具体地说，它涉及一种钢筋混凝土防护密闭门门扇。包括门框，门框的侧壁成对设置有长侧壁和短侧壁边，其特征在于，门框的侧壁的内表面固定设置有支撑部，所述支撑部包括若干支撑筋，支撑筋和门框板的端侧壁的内表面固定连接，且支撑筋与门框的门板平行设置，钢筋逐层搭设长侧壁的支撑筋和短侧壁的支撑筋上形成钢筋网。