An anti-twist structure for a toggle piece of a lock cylinder

Abstract

The invention discloses a toggling part anti-twisting structure of a lock cylinder. The toggling part anti-twisting structure of the lock cylinder comprises a toggling part arranged in a lock cylinder body, an inner rotary part and a lock cylinder inner core; the toggling part is vertically provided with a locking hole; a steel ball, a locking spring and a fastening screw are arranged in the locking hole from bottom to top in sequence; the inner rotary part is formed by jointing a first single inner rotary part and a second single inner rotary part; the upper part of the second single inner rotary part is provided with a cavity adaptive to the steel ball; the door inside end part of the second single inner rotary part is abutted against and matched with an inner rotary part spring; the inside of a clamp ring slot of the inner core of the lock cylinder is provided with a toggling part slot; the inner periphery of the toggling part is provided with a lug adaptive to the toggling part slot; the toggling part slot is clamped and matched with the lug. The toggling part anti-twisting structure of the lock cylinder has the advantages that the structure is simple and reasonable, the manufacturing is convenient, the manufacturing cost is low, and the lock cylinder can still not be unlocked even being twisted off from the middle mounting hole, so the safety performance of the lock cylinder is greatly improved.

Description

technical field [0001] The invention relates to the field of locks, in particular to an anti-twist structure for a toggle part of a lock cylinder. Background technique [0002] There are many illegal unlocking methods popular in the world today: bump key (English is Bump Lock) unlocking, drill bit unlocking, pulling out the lock cylinder to unlock, lock picking tool unlocking and so on. And there are many kinds of anti-illegal unlocking technologies: anti-picking lock cylinder, anti-drilling lock cylinder, anti-pull lock cylinder, anti-twist lock cylinder (anti-snap), anti-bump key lock cylinder (anti-bump) and so on. [0003] At present, some thieves have also begun to use the means of violent unlocking to carry out the theft. They use a special sleeve rod to cover the head of the lock cylinder on the outside of the door or clamp the head of the lock cylinder on the outside of the door with pliers, and then forcefully go up and down. Pull or pull left and right to make the...

AI Technical Summary

Problems solved by technology

However, when the lock cylinder breaks at the middle groove, two situations will occur: one is that the inner turning part on the inner side of the door is just stuck in the toggle piece, and the toggle piece will be kept at 30 degrees and stuck in the lock body on the door , the lock cylinder on the inner side of the door will not fall off after being broken; the second is that the inner rotating part on the inner side of the door is not stuck in the toggling member, the toggling member can be rotated at will, and the lock cylinder on the inner side of the rear door is turned will drop

And even in the first case, as long as the inner turning part is pushed inward, the toggle part can be turned, and the lock cylinder on the inner side of the door will fall off.

Therefore, it is still not possible to ensure the safety of the lock cylinder

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