The invention belongs to the field of aircraft structure design, and particularly relates to a spring lock type pressure relief opening cover. Comprising a positioning frame, the positioning frame is installed on an opening frame of a blocking wall through bolts, and a rubber sealing ring is installed on the positioning frame; the pressure relief plate is mounted and fixed with the positioning frame through a spring lock; and the protective guard is fixedly connected with the positioning frame through welding, and the protective guard is arranged on the pressure relief plate in a covering mode. According to the spring lock type pressure relief covering cap, aiming at the problem of aircraft structure safety caused by too large pressure difference between passenger cargo compartments due to pressure loss of the cargo compartments, under the condition of normal flight, the pressure relief plate is fixed through the spring lock to prevent opening under the comprehensive consideration of the pressure relief and fire prevention requirements, and the fire prevention function is achieved through the sealing rubber ring; when the cargo hold is damaged to cause pressure loss, the spring lock automatically bounces off when exceeding a certain pressure difference threshold value, so that the pressure relief opening cover automatically falls off, short-time pressure relief is achieved, pressure balance is achieved, and flight safety is guaranteed.
本申请属于飞机结构设计领域,特别涉及一种弹簧锁式泄压口盖。包括:定位框,所述定位框通过螺栓安装在拦阻墙的口框上,所述定位框上安装有橡胶密封圈;泄压板,所述泄压板通过弹簧锁与所述定位框安装固定;防护栏,所述防护栏通过焊接与所述定位框固定连接,所述防护栏罩设在所述泄压板上。本申请的弹簧锁式泄压口盖,针对货舱失压造成客货舱之间的压差过大而导致飞机结构安全的难题,在综合考虑泄压与防火的要求下,在正常飞行的状况下,通过弹簧锁固定泄压板防止打开,且通过密封橡胶圈实现防火的功能;在货舱破损导致失压时,弹簧锁超过一定的压差阈值自动弹开,实现泄压口盖自动脱落,达到短时间泄压实现压力平衡,保证飞行安全。
Spring lock type pressure relief opening cover
一种弹簧锁式泄压口盖
12.03.2024
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2023
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