A key reset device for an anti-theft tumbler lock

Abstract

The invention discloses a key resetting device for a novel anti-theft pin tumbler lock. The key resetting device for the novel anti-theft pin tumbler lock comprises a lock body, a lock ring, a lock hole, lock cores and a key, wherein a lock groove is formed in the middle of the lock body, a lock cylinder is arranged in the lock groove, the plurality of lock cores are arranged at the bottom of thelock cylinder, the lock hole is formed in the upper end of the lock cylinder, the key is composed of a handle block, a connecting tube, connecting pipes and lock teeth, the connecting tube is arrangedat the bottom of the handle block, the plurality of connecting pieces are arranged at the bottom of the connecting tube, the plurality of lock teeth are arranged inside the connecting pieces, a clamping ring is arranged in the middle of the connecting tube, a telescopic rod is arranged in the clamping ring, a clamping block matched with the lock hole is arranged at the bottom of the telescopic rod, the outer side of the clamping block is connected with a fixing ring through fixing rods, a plurality of protrusions are arranged on the surface of the front end of the clamping block, the frictionforce of the protrusions enables the key to pass through the fixing ring after being pulled out so that the connecting pieces can be contracted, an initial state can thus be automatically restored, and therefore the key can be automatically unfolded and closed when being used, which is convenient and efficient.

Description

Technical field: [0001] The invention relates to the technical field of locks, in particular to a key reset device for an anti-theft tumbler lock. Background technique: [0002] A pin tumbler lock, also known as a pin tumbler lock, bead lock, bolster lock or pin bolt lock, is one of the most common lock structures. The principle is to use multiple cylindrical parts of different heights (called lock springs, pins or beads) to lock the lock cylinder. When the correct key is put in, each lock bolt is pushed to the same height, and the lock cylinder is released. [0003] Due to the simple structure and principle of the existing tumbler locks, various unlocking tools can be used at this stage to quickly open it, mainly because the lock cylinder is in a vertical insertion mode, and the unlocking tool can easily and directly enter the lock cylinder, resulting in anti-theft. The performance is poor. At present, in order to increase the difficulty of preventing technical opening of...

AI Technical Summary

Problems solved by technology

[0003] Due to the simple structure and principle of the existing tumbler locks, various unlocking tools can be used at this stage to quickly open it, mainly because the lock cylinder is in a vertical insertion mode, and the unlocking tool can easily and directly enter the lock cylinder, resulting in anti-theft. The performance is poor. At present, in order to increase the difficulty of preventing technical opening of the tumbler lock, most of them increase the complexity of the lock cylinder, but the placement of the lock cylinder has not been changed, which makes it easy for the unlocking tool to be inserted into the lock cylinder. Once the lock is unlocked The tool is easy to insert into the lock cylinder, and the lock cylinder can be easily opened by some means

[0004] Therefore, the present application has developed a kind of anti-theft tumbler lock that adopts a plurality of lock cores distributed radially. The key must be turned from a vertical state to a horizontal state before being inserted into the lock core, so that most of the unlocking tools on the market cannot be effectively inserted into the lock core. inside, which greatly increases the difficulty of unlocking

[0005] However, when the anti-theft tumbler lock is in use, since the keys are radially distributed, if the keys are not reset and fixed in time after use, the keys will be too scattered, which will cause more trouble in unlocking and reduce the service life.

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