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Cabin door lifting opening icebreaking mechanism

A hatch door and surface structure technology, applied to aircraft doors, aircraft accessories, etc., can solve problems such as door jamming, hatch failure to break through ice, and up and down vibrations, so as to reduce the number of parts, solve the problem of not being able to open normally, and avoid damage Effect

Active Publication Date: 2021-04-02
AVIC SAC COMML AIRCRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the above-mentioned mechanism, the present invention solves the problems existing in the prior art that the hatch door cannot be opened to break the ice, the door is stuck, and the hatch door vibrates up and down after opening.

Method used

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  • Cabin door lifting opening icebreaking mechanism
  • Cabin door lifting opening icebreaking mechanism
  • Cabin door lifting opening icebreaking mechanism

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Effect test

Embodiment Construction

[0023] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0024] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown in the figure, a hatch door lifting and opening ice breaking mechanism has a latch shaft 2 hingedly connected with the hatch structure, and a latch rocker arm 1 is fixedly connected to the latch shaft 2; a latch support 3 fixedly connected to the mouth frame structure, the latch The support 3 includes a latch functional surface structure 4 and an ice-breaking functional surface structure 5; the latch functional surface structure 4 is used to prevent the upward movement of the cabin door due to inertial load, and the ice-breaking functional surface structure 5 only works in the icing state;

[0025] The latch function surface structure 4 and the ice-breaking function surface structure 5 are in the shape of a font as a whole; ...

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Abstract

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.

Description

technical field [0001] The invention belongs to the field of civil aircraft door mechanisms, and specifically relates to a mechanism applied to a civil aircraft door to break the ice layer that may exist between the door and the mouth frame when the door is lifted upwards and opened. Background technique [0002] The semi-blocked translational cabin door has the advantages of being safer to open under residual pressure, hardly occupying the cabin space during the opening process, facilitating emergency evacuation of passengers, more convenient door closing operation, and higher safety, and has been widely used in various types of cabins. In the design of aircraft doors, it has become the most mainstream door design scheme at present. [0003] The opening of this type of cabin door is divided into two motion steps of lifting upwards and opening outwards. Before opening, water vapor may condense between the hatch structure and the mouth frame structure, resulting in icing, ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/14
CPCB64C1/14B64C1/1423
Inventor 马岩陶金库李忠霖杨炎通张秀丽李金鹰
Owner AVIC SAC COMML AIRCRAFT
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