The invention belongs to the field of civil aircraft cabin door mechanisms, and provides a cabin door lifting opening icebreaking mechanism which is provided with a latch shaft hinged to a cabin doorstructure, and a latch rocker arm is fixedly connected to the latch shaft. A latch support is fixedly connected with a mouth frame structure and comprises a latch functional surface structure and an ice breaking functional surface structure; the latch functional surface structure is used for preventing the cabin door from moving upwards due to inertia load, and the icebreaking function surface structure only plays a role in an iced state. The ice breaking effect of the cabin door is achieved through the latch mechanism, an ice breaking mechanism does not need to be additionally designed, the mechanism form of the cabin door is simplified, the number of parts is reduced, the mechanism weight of the cabin door can be effectively reduced, and the basic reliability of the mechanism is improved. The mechanism is simple and wide in application range. The mechanism disclosed by the invention is simple in transmission relationship, adopts common and very mature typical mechanisms, and can be popularized and applied to various cabin doors with ice breaking requirements.

    本发明属于民机舱门机构领域,提供了一种舱门提升开启破冰机构,具有与舱门结构铰接连接的闩轴,在闩轴上固定连接有闩摇臂;与口框结构固定连接的闩支座,闩支座包括闩功能表面结构和破冰功能表面结构;闩功能表面结构用于阻止舱门因惯性载荷产生的上窜运动,破冰功能表面结构仅在结冰状态下起作用。本机构通过闩机构实现舱门的破冰功效,不需要额外设计破冰机构,简化了舱门的机构形式,减少了零件数量,可以有效降低舱门的机构重量,并提高机构基本可靠性。机构简单,适用范围广。本发明机构传动关系简单,采用的都是常用并且非常成熟的典型机构,本发明可以推广应用到各类具有破冰要求的舱门上。


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    Title :

    Cabin door lifting opening icebreaking mechanism


    Additional title:

    一种舱门提升开启破冰机构


    Contributors:
    MA YAN (author) / TAO JINKU (author) / LI ZHONGLIN (author) / YANG YANTONG (author) / ZHANG XIULI (author) / LI JINYING (author)

    Publication date :

    2021-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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