Anti-theft lock cylinder for flat cross key

Abstract

The invention relates to an anti-theft lock core for a flat cross key. There are four cylindrical holes at both ends of the cylinder, and an axial pin is inserted in each cylindrical hole; an axial pin reset spring is placed at one end of the axial pin; The radial cylindrical hole is provided with a radial pin in the first hole, an engineering bead is arranged at one end of the radial pin, a radial sliding pin is arranged at the other end of the engineering bead, and a radial pin return spring is arranged at the other end of the radially sliding pin; Radial pins are also arranged in the second hole and the third hole, one end of the radial pin has a radial slide pin, and the other end of the radial slide pin is provided with a radial pin return spring; in the fourth hole, there is a positioning bead for positioning. There is a radial marble return spring at one end of the ball. Owing to adopting the cylinder-shaped cylinder lock blocking cylinder formed by stamping, the size is consistent during mass production, the structure is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of hardware, and relates to an anti-theft lock cylinder, in particular to an anti-theft lock cylinder with three-dimensional intersecting marbles matched with a flat cross-shaped key. Background technique [0002] In the prior art, though its structure of the single-row pin lock cylinder is simple, its safety performance is not good, and it will be opened by others without a key in about a minute. Although there are many anti-theft lock cylinders with rows of marble structures at present, it is difficult to popularize and use them in large quantities because of the complex structure and high manufacturing process. Contents of the invention [0003] The object of the present invention is to propose an anti-theft lock cylinder that is simple in structure and can be used for a flat cross key in view of the defects in the prior art. [0004] Technical scheme of the present invention is: [0005] An anti-theft lock cyl...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, although the structure of the single-row tumbler lock cylinder is simple, its safety performance is not good, and it will be opened by others without a key in about a minute.

At present, although there are multiple rows of anti-theft lock cylinders with marble structure, it is difficult to popularize and use them in large quantities due to the complex structure and high manufacturing process.

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