A double lock cylinder anti-theft lock

Abstract

The invention provides a double-lock-cylinder anti-theft lock. A gear fixedly sleeves the outer side of the middle of a first rotary body which rotationally sleeves the front end of a first lock cylinder, a torsion spring sleeves the outer side of the front part of the first rotary body, a poke rod is fixedly connected with the front end of the first rotary body, the tail end of the first rotary body is provided a first straight section and a second straight section which are opposite to each other, and an inclined section is formed between the first straight section and the second straight section. A limiting column is fixedly connected with the outer side of the front part of the first lock cylinder, and the limiting column is in limited fit with the tail end of the first rotary body; local continuous teeth are arranged in the circumferential direction of a second rotary body; a shifting piece is assembled in a sliding groove, a stopping block is arranged at the left end of the shifting piece, and a notch is formed in the right portion of the shifting piece; a torsion arm at the front end of the torsion spring is fixedly connected with the portion, on the left of the notch, on the shifting piece, and a torsion arm at the rear end of the torsion spring is fixedly connected to the first rotary body; the front end of the poke rod penetrates through the notch and is rotatably arranged in a first rotating cavity. The anti-theft lock is high in anti-theft performance and capable of improving safety performance, and is simple in structure, low in manufacturing cost and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of locks, in particular to a double lock cylinder anti-theft lock. Background technique [0002] Locks are an indispensable article in people's daily life. There are various types of locks, such as open locks and hidden locks. One, the structure of this kind of lock is relatively simple, the matching method between the key and the lock is relatively simple, and the overall safety performance is low. The lock with this structure is easy to be damaged by tin foil, iron wire, insert piece, four-tooth tension, two-tooth tension, and inner triangle. , four-corner wrench, round shaft clamp or destructive unlocking tools, etc. to open. Therefore, the existing locks have weak anti-theft performance and cannot provide sufficient security to ensure family property and personal safety. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides a double...

AI Technical Summary

Problems solved by technology

[0002] Locks are an indispensable article in people's daily life. There are various types of locks, such as open locks and hidden locks. One, the structure of this kind of lock is relatively simple, the matching method between the key and the lock is relatively simple, and the overall safety performance is low. The lock with this structure is easy to be damaged by tin foil, iron wire, insert piece, four-tooth tension, two-tooth tension, and inner triangle. , four-corner wrench, round shaft fixture or destructive unlocking tool to open

Therefore, the existing locks have weak anti-theft performance and cannot provide sufficient security to ensure family property and personal safety.

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