Aircraft cabin door gust lock device

Abstract

An aircraft cabin door gust lock device is accurate in positioning and capable of improving locking and unlocking accuracy. The aircraft cabin door gust lock device locks a cabin door of an aircraft at a fixed position so as to lock the cabin door in a maximum opening state, and comprises a locked part which is fixedly mounted on a cabin door frame of the cabin door and is provided with a locked part; and a lock part which is installed on a hinge arm of a cabin door. A locking piece, a positioning piece and a limiting piece are arranged, wherein the locking piece is provided with a locking part which is locked with the locked part, three clamping and blocking parts are arranged at different positions; the positioning piece and the locking piece are adjacently arranged; two protruding partswhich are arranged opposite to the three clamping and blocking parts are arranged; the limiting piece is arranged between the locking piece and the positioning piece and used for limiting the movingrange of the relative positions of the limiting piece and the positioning piece, and at least two different relative positions of the locking piece relative to the positioning piece are limited through the three clamping and blocking parts of the locking piece, the two protruding parts of the positioning piece and the limiting piece.

Description

technical field [0001] The invention relates to the field of aircraft door mechanism design, in particular to an aircraft door gust lock device for preventing the aircraft door from shaking due to gusts of wind or other external forces. Background technique [0002] After the aircraft door is opened, the gust lock device can keep the aircraft door in a fixed position to prevent the aircraft door from shaking due to gusts of wind or other external forces. This gust lock device is generally suitable for outward opening doors, and the gust lock device can be installed near the fixed rotating shaft of the aircraft door to ensure that the aircraft door remains in the open position. [0003] In the past, the gust lock device was realized by using a boss and a groove-type limiting structure and a strut and a support-type limiting structure. For example, non-patent literature 1 "A General Aircraft Boarding Door "Gust Lock" (Xi'an Aircraft Design Institute of Aviation Industry Corpo...

AI Technical Summary

Problems solved by technology

[0004] However, when installing or disassembling the gust lock device or replacing the parts of the gust lock device, it is necessary to disassemble other mechanisms of the aircraft door, and the structure is complicated and difficult to process and install.

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