The invention provides a pressurization prevention mechanism of an aircraft cabin door. The pressurization prevention mechanism comprises a pressurization prevention cover plate, a rotating shaft and at least one rocker arm which radially extends out of the rotating shaft and is fixed relative to the rotating shaft. The pressurization prevention cover plate comprises a plate body, a closing meshing component and an opening meshing component, and can rotate between a closing position and an opening position around a rotating shaft. When the rotating shaft rotates in the opening direction, the rocker arm and the rotating shaft rotate together and rotate to be meshed with an opening meshing component on the pressurization prevention cover plate, and therefore the pressurization prevention cover plate is pushed to rotate to the opening position around the rotating shaft in the opening direction. When the shaft rotates in the closing direction opposite to the opening direction, the rocker arm rotates together with the rotating shaft and rotates to be meshed with a closing meshing component on the pressurization prevention cover plate, and therefore the pressurization prevention cover plate is pushed to rotate to a closing position around the rotating shaft in the closing direction. The mechanism is provided with two sets of driving mechanisms, the reliability is high, the driving mechanisms are simple in form, the integration degree is high, and the occupied space is small.
本发明提供一种飞机舱门的增压预防机构,其包括增压预防盖板、转轴和从转轴径向伸出并相对转轴固定的至少一个摇臂。增压预防盖板包括板主体、与板主体固定或一体的关闭啮合构件和打开啮合构件,并能够绕转轴在关闭位置和打开位置之间转动;当转轴沿打开方向转动时,摇臂与转轴一起转动并转动至与增压预防盖板上的打开啮合构件啮合,由此推动增压预防盖板绕转轴沿打开方向转动到打开位置,当转轴沿与打开方向相反的关闭方向转动时,摇臂与转轴一起转动并转动至与增压预防盖板上的关闭啮合构件啮合,由此推动增压预防盖板绕转轴沿关闭方向转动到关闭位置。该机构拥有两套驱动机构,可靠性高,驱动机构形式简单,集成化程度高,占用空间少。
Pressurization prevention mechanism of aircraft cabin door
飞机舱门的增压预防机构
2021-07-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
Pressurization prevention device for cabin door of airplane
Europäisches Patentamt | 2023
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AIRCRAFT CABIN PRESSURIZATION CONTROL CRITERIA
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