A locking device for an aircraft door slide positioning mechanism

By employing a symmetrical locking mechanism structure, and utilizing the synergistic action of components such as gears, splined shafts, and cams, the problem of accidental release of the cabin door slide pre-positioning mechanism is solved, achieving reliable locking and unlocking, ensuring passenger safety, and featuring a compact structure with wide applicability.

CN122126460APending Publication Date: 2026-06-02AVIC SAC COMML AIRCRAFT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AVIC SAC COMML AIRCRAFT
Filing Date
2026-04-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the existing technology, the pre-positioning mechanism of the hatch slide is prone to accidental release, leading to safety issues, and the existing locking device is not reliable enough.

Method used

The device employs a symmetrical locking mechanism structure, including a front support assembly, a front rocker arm lock assembly, a front frame, a pre-position hook assembly, a rear rocker arm lock assembly, and a rear support assembly. Through the coordinated action of components such as gears, splined shafts, and cams, it achieves reliable locking and unlocking of the pre-position rod.

Benefits of technology

It achieves reliable locking of the slide pre-positioning mechanism, prevents accidental release, ensures passenger safety, has a compact structure, wide applicability, and is simple and efficient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application belongs to the field of civil aircraft cabin door mechanisms and relates to a locking device for a slide pre-positioning mechanism installed on a civil aircraft cabin door. It achieves reliable locking and unlocking of the cabin door slide pre-positioning mechanism, solving the problem of unreliable locking of the pre-positioning rod during use, which leads to accidental release of the slide pack. It provides a slide pre-positioning locking mechanism that is simple to operate, efficient, convenient, and precisely controlled.
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