Explosion-proof civil defense door

The invention discloses an explosion-proof civil defense door, and belongs to the field of civil defense engineering. According to the technical scheme, the explosion-proof civil defense door is characterized by comprising a door body and a plurality of steel balls filling the door body, wherein the circumferential surfaces of the plurality of steel balls are tangent, gaps among the steel balls are filled with a molten metal, and after the molten metal is solidified, the plurality of steel balls can be connected into a whole. According to the civil defense door, the problem that a conventionalcivil defense door is low in explosion impact resistance is solved, and the effects that the resistance, to the explosion impact, of the civil defense door is improved, and the civil defense door isprotected against reduction of the protective effect of the civil defense door are achieved. 本发明公开了一种防爆式人防门，属于人防工程领域；其技术方案要点是包括门体以及填充于门体内部的多个钢珠，多个钢珠的圆周面均相切；钢珠之间的空隙用金属熔液填充，金属熔液凝固后能够使多个钢珠连接成一个整体。本发明解决了常规的人防门对爆炸冲击抵抗力低下的问题，达到了能够提高