Airplane cockpit emergency exit sealing structure

A sealing structure for an emergency exit of an aircraft cockpit comprises a hatch cover and a mouth frame, a sunken step is arranged on the periphery of the hatch cover, a continuous outer skin is arranged on the surface of the step, an annular air sealing belt is arranged on the lower surface of the step, an annular water sealing belt is arranged on the side wall of the step, and a protruding edge is arranged on the mouth frame. The protruding edge corresponds to a sunken step on the periphery of the hatch cover, the water sealing belt seals a gap between the front end of the protruding edge and the side wall of the hatch cover step, and the air sealing belt seals a gap between the lower surface of the protruding edge and the upper surface of the hatch cover step. 一种飞机驾驶舱应急出口密封结构，含有舱盖和口框，所述舱盖的周边是一个下陷的台阶，台阶的表面是连续的外蒙皮，在台阶的下表面设有环形的气密封带，在台阶的侧壁上设有环形的水密封带，所述的口框上设有凸沿，该凸沿与舱盖周边下陷台阶对应，水密封带密封凸沿前端与舱盖台阶侧壁之间的间隙，气密封带密封凸沿下表面与舱盖台阶上表面之间的间隙。