Three-in-one structure anti-theft lock cylinder

Abstract

The invention discloses an anti-theft lock cylinder with a three-in-one structure. The anti-theft lock cylinder with the three-in-one structure comprises a lock cylinder shell, a lock liner which is arranged inside the lock cylinder shell and can rotate along the lock cylinder shell and a dial wheel which is installed on the lock liner. A keyhole is arranged in the lock liner, and a key is inserted into the keyhole. A plurality of pin tumbler holes which are lined up in rows and a finger ball groove are formed in the lock liner along the axial direction of the lock liner, and the pin tumbler holes and the finger bead groove are all communicated with the keyhole. A plurality of spring holes which are lined up in rows are formed in the lock cylinder shell along the axial direction of the lock cylinder shell, and the spring holes and the corresponding pin tumbler holes are communicated to form channels. Joggle joint structure lock cylinders and mother-sub telescopiform lock balls are respectively arranged in the channels. One end of a spring exerts force onto the joggle joint structure lock cylinders or the mother-sub telescopiform lock balls, and the other end of the spring exerts force onto a sealing ball which presses the lock cylinder shell. According to the anti-theft lock cylinder with the three-in-one structure, three different anti-theft mechanisms are adopted, technical opening difficulty is added, and anti-theft performance is high.

Description

Technical field: [0001] The invention relates to the field of anti-theft lock cores, and more specifically relates to a high-grade anti-theft lock core composed of three anti-theft structure lock beads. Background technique: [0002] The existing mechanical lock cylinder mainly includes a lock cylinder and a lock cylinder shell. There are pinholes on the lock cylinder, and spring holes are opened on the corresponding positions of the lock cylinder shell. , a spring and a sealing bead, and a plugging bead corresponding to the shell bead is set in the pin hole. When the key is inserted, the key squeezes the plug beads and the shell beads, forcing all the shell beads back into the spring hole, so that the lock cylinder will not be stuck, so that the lock cylinder can be rotated so that the dial on it can drive the lock tongue to expand and contract to unlock. . After the key is pulled out from the hole, the shell beads return to the lock cylinder under the reset action of the...

AI Technical Summary

Problems solved by technology

This type of mechanical lock cylinder moves in a straight line and has a simple structure. When unlocking the lock, you only need to align the teeth and turn the lock cylinder. It is very easy to unlock and has low anti-theft performance.

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