Uplock of retractable arrester hook

Abstract

The invention relates to an uplock of a retractable arrester hook. An actuating cylinder is fixedly connected with a lock shell, a piston rod in the actuating cylinder is connected with a rocking arm through a connecting rod A, the rocking arm is connected with a lock key through a connecting rod B; one end of a spring A is connected with the rocking arm, the other end of the spring A is connected with the lock key; a switch is fixedly connected with a support, the support is fixedly connected with the lock shell; a spring B is fixedly sleeved outside a switch push rod, the switch push rod and the spring B are installed between two auricles of the lock key; the tip of the switch push rod corresponds to a contact below the switch; a lock hook is connected with the lock key, a ring is connected with the lock hook; one end of a spring C is connected with the lock key, and the other end of the spring C is connected with the long arm of the lock hook. According to the invention, in the process that a carrier-based aircraft arrester hook hooks an arrester cable, when the arrester hook moves along with the carrier-based aircraft and is possible to move to the lock position of the uplock, because the uplock is retracted, the uplock has no locking effect, the arrester hook is still in a free state, and the function of the arrester hook can not be affected, thus realizing effective control of the carrier-based aircraft arrester hook.

Description

technical field [0001] The invention relates to a mechanical structure of a lock, a lock used for fixing a moving part in a retracted position, in particular to an uplock capable of retracting and retracting an arresting hook. Background technique [0002] The so-called uplock means that a lock that fixes a moving part in a retracted position is an uplock. [0003] At present, in the existing domestic aircraft models, the upper lock usually adopts a fixed locking method, that is, it is installed on the body structure, and the lock ring on the moving part is hooked by the hook on the upper lock, so that the moving parts are safe and reliable. It is fixed at the designated position, and when it needs to be released, the upper lock actuator is unlocked to release the locked moving parts. In the whole mechanism of the upper lock, only the locking and unlocking parts are designed as rotating parts, and other parts are fixed parts, which cannot be moved, such as figure 1 Among t...

AI Technical Summary

Problems solved by technology

At present, the upper lock of existing domestic models does not have this function

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