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发明公开
CN102409948A 方舱或车厢用内开式通风孔口门 无效 - 驳回

方舱或车厢用内开式通风孔口门
摘要：
本发明公开了一种方舱或车厢用内开式通风孔口门，它包括安装在通风口内侧的孔口门主体，该孔口门主体包括门框以及与门框铰接的门板，所述门板上装有抽斗锁，并在门板和门框之间连有气弹簧。该孔口门能在方舱或车厢内部方便快捷地手动开启和关闭。
摘要（英）：

The invention discloses an internal opening type ventilating hole door for a square cabin or a carriage. The internal opening type ventilating hole door comprises a hole door main body arranged on the inner side of a ventilating hole, wherein the hole door main body comprises a doorframe and a door plate hinged with the doorframe; a drawer lock is arranged on the door plate; and an air spring is connected between the door plate and the doorframe. The hole door can be conveniently and quickly opened and closed manually in the square cabin or the carriage.

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