An aircraft emergency cabin door opening handle structure inside and outside

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.

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...

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to propose a method that reduces the opening force and is easy to operate, aiming at the fact that the emergency handle device currently used is difficult to open manually in an emergency and does not meet the requirements of the current civil airworthiness standards. The internal and external opening structure of the aircraft emergency door that does not affect the shape of the aircraft

Images