Cabin door locking mechanism

Abstract

The invention discloses a cabin door locking mechanism simple in structure and high in reliability. The cabin door locking mechanism can lock a key shaft capable of doing the rotation movement and comprises a converting mechanism, a locking mechanism body and a detecting mechanism. The converting mechanism converts the rotation movement of the key shaft into the linear movement. The locking mechanism body and the key shaft are separably arranged, the locking mechanism body is provided with a locked piece, a guiding piece, a plurality of locking pieces and a plurality of driving pieces, and thelocked piece is provided with a plurality of locking holes, wherein the number of the locking pieces is the same as the number of the driving pieces, and the number of the locking pieces is the sameas the number of the locking holes. The detecting mechanism is provided with a plurality of targets and a plurality of sensors, the number of the targets and the number of the sensors are equal to thenumber of the locking pieces, the motion parts of the end portions of the driving pieces are fixedly connected with the locking pieces and the targets, and therefore when the locked piece is moved tothe locking position, the driving pieces drive the locking pieces to enter the locking holes formed in the locked piece; and meanwhile, the multiple sensors detect the positions of the targets so that whether locking is conducted or not can be independently judged.

Description

technical field [0001] The invention relates to a locking mechanism for a cabin door, more specifically, to an "AND" logic locking mechanism with feedback for an aircraft cabin door. Background technique [0002] Conventionally, a multi-signal control locking mechanism has been used as a mechanism for locking a cabin door, especially an aircraft cabin door. This multi-signal controlled locking mechanism is generally applied to locking a key shaft of an aircraft door, such as a latch shaft. [0003] At present, there are mainly two types of common hatch locking mechanisms: [0004] (1) Form of software logic control [0005] This form combines multiple signals (for example, two signals) to output one signal after software logic calculation, so it has the advantages of simple structure and light weight. However, compared with the mechanical structure, due to the poor reliability of software logic control, and compared with the mechanical structure, which can detect the exec...

AI Technical Summary

Problems solved by technology

This form has the advantages of being able to accurately detect and grasp the implementation of the key shaft and has high reliability. However, it has relatively strict tolerance requirements for the position and rotation angle of the pin and the hole on the key shaft, and it is more difficult to assemble. Time-consuming and more difficult

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