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Lock

A technology of locks and lock cylinders, which is applied in the field of lock heads and keys, can solve the problems of insufficient prevention of technical unlocking, and achieve the effect of preventing technical unlocking

Inactive Publication Date: 2015-02-11
严宗炜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to structural defects, the existing locks are still insufficient in preventing technical unlocking. Even a combination lock with a precise structure will be opened by a senior locksmith with the help of other related equipment.

Method used

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings:

[0018] In the following embodiments, the front end refers to the end close to the lock hole, and the rear end and the bottom end refer to the end far away from the lock hole.

[0019] Such as Figure 1 to Figure 8 As shown, a lock provided by the present invention includes: a key 8, a lock core sleeve 1, a lock core 2 rotatably arranged in the lock core sleeve 1, and a mating surface between the lock core sleeve 1 and the lock core 2 In between, the lock bolt 3 used to prevent the lock core sleeve 1 and the lock core 2 from rotating mutually, the key hole 208 and the guide groove 203 in the axial direction of the lock core 2, and several blades in the radial direction of the lock core 2 passing through the key hole 208 Hole 205, the blade 5 nested in the blade hole 205 and matched with the lock bolt 3. The movement direction of the bl...

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Abstract

The invention discloses a lock. The lock comprises a key, a lock cylinder jacket, a lock cylinder, a lock bolt, a blade, a blade hole, a locking piece and a limiting piece, wherein the blade hole is formed by combining a plurality of square grooves formed in the lock cylinder in the radial direction with the other half of cylinder; the limiting piece is L-shaped and provided with two trapezoidal bulges and two cylinders; two trapezoidal grooves mutually matched with the trapezoidal bulges of the limiting piece are formed in the lock bolt; two guide holes are formed in the locking piece; at least two blade locking grooves are formed in the side where the blade is coordinated with the lock bolt; the matched key comprises a sliding groove a and a sliding block which are arranged on a key rod; the sliding groove and the sliding block are arranged between a handle and key teeth. The limiting piece can release the limiting on the locking bolt only when the blade is locked by the locking piece and cannot move, and during the unlocking and pulling process, the lock bolt is always not in contact with the blade, so that the technical unlocking prevention problem is fundamentally solved.

Description

Technical field [0001] The invention belongs to a lock, in particular to a lock head and a key. Background technique [0002] Technical unlocking is the use of tools to unlock the lock by displacing the pin or blade or friction or collision with the lock bolt during the pulling process of unlocking the lock without damaging the lock. Due to structural defects, the existing locks are still insufficient in preventing technical unlocking. Even a combination lock with a sophisticated structure will be opened by an experienced locksmith with the help of other related equipment. Summary of the invention [0003] The purpose of the present invention is to provide a safer and more reliable lock with better protection against technical unlocking in view of the defects in the prior art. [0004] In this regard, the technical solution of the present invention is: a lock including a key, a lock core sleeve, a lock core rotatably arranged in the lock core sleeve, and a mating surface between th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B15/12E05B15/00E05B19/02
Inventor 严宗炜
Owner 严宗炜
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