Mechanical spring lock of helicopter control cabinet

Abstract

The invention relates to a mechanical spring lock of a helicopter control cabinet. The mechanical spring lock comprises an outer lock core, a middle lock core, an inner lock core, a mandrel, a cam driving lever and a spring bolt, wherein the inner lock core and the middle lock core are arranged inside the outer lock core; outer, middle and inner layers of spring pieces are correspondingly arranged inside the inner lock core, the middle lock core and the outer lock core; the cam driving lever is connected with and arranged inside the spring bolt through the mandrel. The inner lock core rotates, the middle lock core and the outer lock core are fixed, and the spring bolt pops out when a key of a driver is inserted and rotated, and a lock is converted into an unlocked state from a locked state; the inner lock core and the middle lock core simultaneously rotate, and the outer lock core is fixed when a key of a maintainer is inserted and rotated, so that the lock is converted into the unlocked state from the locked state. The mechanical spring lock has the characteristics that with a three-layer nested structure, the lock of each control cabinet corresponds to one key of the driver while locks of all control cabinets can be unlocked by the maintainer with one key due to different lengths of the inner, middle and outer layers of spring pieces, so that the lock is easy to operate and convenient to manage.

Description

technical field [0001] The invention relates to a mechanical pin lock device, in particular to a mechanical pin lock for a helicopter control cabinet. Background technique [0002] As the packaging platform of the helicopter control system, the helicopter control cabinet is packaged with the electrical control system, communication system, remote sensing monitoring system, internal sensor monitoring system and alarm system, etc. To protect checkpoints, in order to prevent man-made intentional damage or unconscious misoperation, the control cabinets of helicopters are equipped with safety locks. In this way, for the use and maintenance of the helicopter, both the helicopter pilot and the maintenance personnel must be equipped with the key or password of the control cabinet. [0003] At present, the locks used in the control cabinet of the helicopter are mainly in the following ways: [0004] 1. Electronic lock. Including digital combination locks, induction combination loc...

AI Technical Summary

Problems solved by technology

The principle is similar to that of ordinary tumbler locks, but the structural strength has been improved. The advantages are high reliability, simple maintenance and repair, and no external input is required. The disadvantage is that in order to ensure the safety of the helicopter and the pilot, each helicopter control cabinet Lock cylinders are different, and maintenance personnel must match a key for each helicopter. In this way, the number of keys provided by maintenance personnel will increase with the number of helicopters, making management more difficult and indirectly lengthening the maintenance cycle.

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