Locking mechanism and locking method thereof

Abstract

The invention discloses a locking mechanism and a locking method thereof. The locking mechanism comprises a driving device, a central shaft, a self-locking rod, a lock catch and a sling device, one end of the central shaft is connected with the driving device, the driving device can drive the central shaft to longitudinally move up and down, the other end of the central shaft is connected with the self-locking rod, the lower portion of the self-locking rod is hinged to the lock catch, movement of the self-locking rod can drive the lock catch to be opened and closed, and a sling device is arranged at an opening of the lock catch. The locking mechanism is in a normally open state, when goods need to be hung, the sling connector connected with the goods is inserted into the locking mechanism, after the proximity sensor senses the sling connector, the hydraulic action cylinder acts to drive the self-locking rod to enter a dead angle locking angle, the sling connector is locked through the lock catch, and mounting is achieved. The mechanism is simple to operate and convenient to mount, and can realize quick and reliable mounting even if the belly space of the helicopter is small and the visual field is poor.

Description

technical field [0001] The invention belongs to the field of helicopter external suspension transportation, and in particular relates to a locking mechanism and a locking method thereof. Background technique [0002] Helicopter hanging flight is a high-risk subject. During the hanging flight, the locking mechanism installed in the cargo hook device on the belly of the helicopter for hanging delivery is affected by engine vibration, air flow, and cargo swing. Once it opens automatically, it will cause If the cargo is accidentally dropped, the helicopter will suddenly lose its load and the flight will be unstable, which is prone to flight accidents. At the same time, the dropped cargo will have unpredictable consequences on the ground. The existing locking mechanism mainly relies on the frictional force generated by the cargo load and the force of the spring to lock. It can be locked reliably under static conditions, but during the suspension flight process, under dynamic load...

AI Technical Summary

Problems solved by technology

[0002] Helicopter hanging flight is a high-risk subject. During the hanging flight, the locking mechanism installed in the cargo hook device on the belly of the helicopter for hanging delivery is affected by engine vibration, air flow, and cargo swing. Once it opens automatically, it will cause If the cargo is dropped accidentally, the helicopter will suddenly lose its load and the flight will be unstable, which is prone to flight accidents. At the same time, the dropped cargo will have unpredictable consequences on the ground

The existing locking mechanism mainly relies on the frictional force generated by the cargo load and the force of the spring to lock. It can be locked reliably under static conditions, but during the suspension flight process, under dynamic loads such as vibration and impact, the reliability is not high. Accidental opening of the locking mechanism

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