An aircraft emergency cabin door opening handle structure inside and outside

A technology of outer handle and inner handle, which is applied in the field of opening handle structure inside and outside the emergency cabin door of the aircraft, which can solve the problems of difficult opening of the emergency handle device and reduce the opening force, etc., and achieve the effect of appropriate size, easy force application and simple sealing structure

CN107060553BActive Publication Date: 2018-07-06XIAN AIRCRAFT IND GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-07-06

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Abstract

The invention discloses an inner and outer opening handle structure of an aircraft emergency hatch door. The structure comprises the hatch door, an outer handle, an inner handle, a first connecting rod, a second connecting rod, a first rocker arm, a second rocker arm, a third rocker arm and a lock pin, wherein the inner handle is fixed on the inner side of the hatch door and is in linkage with a spring bolt, the outer handle is located on the outer side of the hatch door, the outer handle is hinged to a groove in the outer side of the hatch door through a short shaft located at the middle-upper part on one side of the outer handle, the outer handle takes the short shaft as a rotating center, the outer end of the short shaft is connected with the first rocker arm, the first rocker arm is linked with the second rocker arm through the first connecting rod, the second rocker arm and the third rocker arm are fixed to the two ends of one linkage shaft in the same direction, the middle part of the linkage shaft is hinged to a hatch door body, the third rocker arm is connected with the tail end of the lock pin through the second connecting rod, and the lock pin is restrained by a hatch door guide hole.
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Description

technical field

[0001] The application relates to aircraft structural design technology, and further relates to the field of structural design of aircraft doors, specifically the structure of opening handles inside and outside of aircraft emergency doors. Background technique

[0002] At present, the opening mechanism of the emergency hatch of MA60 aircraft is an older opening form that has been used for decades. This mechanism is relatively simple. Due to the sealing requirements in practical applications, the door must be compressed and pressed when closing. Therefore, the opening and closing force is relatively large. When this opening mechanism is opened from the inside, the hatch is opened and closed by a structural member with a relatively large force arm. However, in case of emergency, when the cabin door needs to be opened from the outside, due to the shape requirements of the aircraft and the structural limitations of the cabin door, the space for installing the han...

Examples

Embodiment Construction

[0013] As shown in the figure, the internal and external opening structure of the emergency cabin door of the aircraft includes a cabin door 1, an outer handle 2, an inner handle 11, a first connecting rod 5, a second connecting rod 8, a first rocker arm 4, a second The rocker arm 6, the third rocker arm 7, the lock pin 9, the inner handle 11 is fixed on the inside of the cabin door 1, and is linked with the lock pin 9, and the outer handle 2 is located on the outside of the cabin door 1, and it is characterized in that the outer handle 2. It is hinged in the groove on the outside of the cabin door 1 through the short shaft 16 located in the middle and upper part of one side. In practice, the groove is a handle box 3 made of sheet metal parts, and the handle box isolates the outer handle from the inside of the cabin. Open, seal with sealing ring between handle box 3 and short shaft 16, handle mechanism has just satisfied the airtightness requirement of aircraft like this, and w...