Combination lock cylinder tamper-proof lock

Abstract

The invention discloses a novel pick-proof lock with a lock cylinder combination. The novel pick-proof lock comprises a shell (1), a mounting seat (7) and an upper cover, wherein a first lock cylinder (6), a second lock cylinder (8), and a rotary lock cylinder (10) of which the top end is fixedly connected with a lock plunger pull rod (9) are arranged in the mounting seat (7); a transmission rod (18) is fixed at the lower part of the rotary lock cylinder (10); a movable lock cylinder rail (13) and a movable lock cylinder (2) are arranged in the shell (10); a movable lock cylinder marble (3) and a tightening device (16) are arranged on the movable lock cylinder (2); the first lock cylinder (6) is connected with a linkage mechanism (4); the second lock cylinder (8) is fixed with a movable lock cylinder push rod (14); a groove (15) and snap fixing frames (17) are arranged at the tail end of the movable lock cylinder push rod (14); and a bulge (11) is arranged on the shell (1) on the lower side of the rotary lock cylinder (10). The novel pick-proof lock disclosed by the invention has the beneficial effects that lock picking, violent unlocking and technical unlocking can be effectively prevented, and both the safety and the reliability can be ensured.

Description

technical field [0001] The invention relates to a novel lock in the field of locks, in particular to an anti-picking lock with a combination lock cylinder. Background technique [0002] At present, most of the lock cores of metal locks on the market are exposed outside the lock body. The exposed lock cores cannot withstand violent prying and cannot achieve real anti-theft. In addition, most of the metal locks currently on the market are provided with only one lock cylinder or two lock cylinders. For a lock with only one lock cylinder, as long as a corresponding key is inserted in and turned, the lock can be opened. For a lock with two lock cylinders, the pins of the two lock cylinders are in close contact, and the lock can be opened by turning two keys at the same time. The lock with this structure cannot effectively prevent violent unlocking, and there is also a hidden danger of theft. Contents of the invention [0003] Aiming at the defects and actual needs in the exist...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the lock cylinders of metal locks on the market are exposed outside the lock body. The exposed lock cylinders cannot withstand violent prying and cannot achieve real anti-theft

In addition, most of the metal locks currently on the market are provided with only one lock cylinder or two lock cylinders. For a lock with only one lock cylinder, as long as a corresponding key is inserted in and turned, the lock can be opened. For a lock with two lock cylinders, the pins of the two lock cylinders are in close contact, and the lock can be opened by turning two keys at the same time. The lock with this structure cannot effectively prevent violent unlocking, and there is also a hidden danger of theft.

Images