Tumbler lock capable of avoiding being technically unlocked

Abstract

Disclosed is a tumbler lock capable of avoiding being technically unlocked. The tumbler lock is composed of a lock cylinder, a lock case and a key. The inside of the lock cylinder is provided with a key slot matched with the key; the outer circumference of the lock cylinder is provided with an anti-sticking sheet, a step tumbler and a changing tumbler; the lock case is composed of a lock cylinder tube and a beam, the middle of the lock cylinder tube is provided with an I-shaped straight hand wheel, one end of the I-shaped straight hand wheel is provided with a snapping spring, both ends of the beam are provided with anti-drilling steel needles, and the two end portions of the beam are provided with tumbler rotating modules matched with the lock cylinder; each cylinder rotating module is composed of a sealing ball, a tumbler spring, an upper tumbler and a lower tumbler from top to bottom; the key is provided with bits formed through the 3D (three-dimensional) engraving technology, which are matched with the step tumbler and the changing tumbler on the lock cylinder. The tumbler lock capable of avoiding being technically unlocked is simple in structure and low in manufacturing cost, avoids damage of electric drills to the lock body and technical unlocking through tinfoil, strikers, single locks and the like, strengthens the lock body, achieves high security, a long service life and low inter-unlockability and avoids key duplicating.

Description

technical field [0001] The invention relates to a lock cylinder, in particular to an anti-drilling tumbler lockset. Background technique [0002] The performance of the mechanical anti-theft lock is mainly reflected in two aspects: one is the anti-technical opening performance, and the other is the anti-destructive performance. The performance of these two aspects must meet the requirements of the user at the same time, and both are indispensable, otherwise it will not be a real anti-theft lock, and there will be potential safety hazards. [0003] It is obviously not scientific and reasonable to simply rely on the selection of high-quality materials and increase the size of the components to enhance the anti-destructive opening ability of the lock, because it is also necessary to consider the processing technology, processing cost, wear resistance and corrosion resistance of the main components, especially the lock cylinder. gender and other factors. The lock cylinder of s...

AI Technical Summary

Problems solved by technology

If an alloy is used, the cost is high, and it is difficult to process and not resistant to corrosion;

[0005] Second, in terms of force, the lock core of the mortise pin and blade mechanical lock is always in a weak state of insufficient resistance. The diameter of the lock core is generally 12mm, and the resistance arm is small. The shearing force is large, the edge of the pin hole is prone to plastic deformation, and the overall lock cylinder is easy to be damaged or even vulnerable;

[0006] The third is the lack of protection measures. The lock cylinder is directly exposed outside the door, and it is directly in close contact with the forced opening tool, and damage is inevitable.

[0007] A lock with a pin cylinder is a popular anti-theft lock on the market. The structure of the lock is usually assembled from a lock body, a lock core, a pin and a pin return spring. The performance of lock picking and destructive lock picking is poor, and most pins are arranged in single or double rows, so as the sales volume of locks increases, the mutual opening rate of the lock also increases, and the security decreases accordingly

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