Passive-mode flexible-linkage plunger lock

Abstract

The invention discloses a passive-mode flexible-linkage plunger lock. The lock comprises a lock case, a key and a lock cylinder, wherein a large lock case hole is formed in the lock case, a key hole is formed in the lock cylinder, slide fastener locking grooves and locking blade locking slots are formed in the large lock case hole, lock cylinder side holes are formed in the side wall of the lock cylinder, and blade springs and blades are arranged in the lock cylinder side holes; each blade comprises a blade body and blade end parts, locking bosses are arranged at the blade end parts, an unlocking slot and a false slot are formed in the blade body and matched with teeth of the key, and a blade spring boss is arranged in the position, close to the end part of the corresponding blade, of the blade body; the blade springs are propped against the blade spring bosses, the other ends of the blade springs are propped against the inner wall of the lock cylinder, a plunger groove is formed in the side wall of the lock cylinder, a locking plunger is arranged in the plunger groove, plunger inner holes are formed in the locking plunger, composite springs and steel balls are arranged in the plunger inner holes, the steel balls are covered with slide fasteners embedded in the slide fastener locking grooves, and a V-shaped groove is formed in each slide fastener. According to the passive-mode flexible-linkage plunger lock, technical opening difficulty is increased, the probability of illegal opening of the lock cylinder is effectively reduced, and safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of mechanical locks, in particular to a passive soft linkage side post lock. Background technique [0002] Locks are inseparable items in people's daily life. Human beings have been using locks to store important items since ancient times, so that their property will not be stolen by others. The core anti-theft part of the lock is the lock cylinder, and the performance of the lock cylinder directly affects the anti-theft performance of the entire lock. At present, there are many types of lock cylinders. Traditional mechanical pin locks and blade lock cylinders have been in circulation for many years, so unlocking tools developed for them can be seen everywhere, and the performance of lock cylinders has long been unable to meet the anti-theft requirements. In recent years, manufacturers have developed many types of lock cylinders with good performance in response to this phenomenon. [0003] The most repres...

AI Technical Summary

Problems solved by technology

The disadvantage is that the unlocking groove on the side of the blade has a V-shaped structure. When the return spring force of the blade spring is lower than the spring pressure of the side column, there is no need to twist the lock cylinder, and the side column of the blade is easily pushed into the lock cylinder automatically, thereby being opened.

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