CN201065683Y - Anti-theft lock - Google Patents

Abstract

The utility model discloses an anti-theft lock. The anti-theft lock has the main structure that four slide bars are symmetrically arranged in the lock core, raised cotters and plunger latches are arranged at the front and rear positions of each slide bar, and are correspondingly matched with transverse slots arranged on the key and the lock body respectively, and four longitudinal slots correspondingly matched with the plunger latches are also arranged on the lock body. Four dummy clubs with different lengths and matched with the cotters are symmetrically fixed on the periphery of the key. When the key is inserted for unlocking, the cotters matched with the key and arranged on the slide bars in the lock core are propped into the transverse slots of the lock body by the key, the key can drive the slide bars and the lock core to rotate together, and then the lock can be unlocked. The anti-theft lock has the advantages that the structure is simple and the reliability is high, and the disadvantages that the performance is low and the structure is complex in the prior anti-theft lock core are overcome.

Description

A kind of theftproof lock

Technical field

The utility model relates to a kind of lock, refers in particular to a kind of slide bar type theftproof lock.

Background technology

At present, most of locksets (comprising theftproof lock) structure is all complicated on the market, and the cost of manufacture height cracks easily and prized.Wherein, also have quite a few anti-theft lock similar, cause and crack quite easily, even broken lock tool occurred.This has caused very big harm to social security.

The utility model content

The technical problems to be solved in the utility model provides a kind of theftproof lock, and the structural change of this theftproof lock is the characteristics of anti-theft lock structure complexity in the past, and it is simple in structure, reliability is high, can be used in locking of any kind.

The technical problems to be solved in the utility model is solved by following scheme:

A kind of theftproof lock comprises lock body, lock core, key, it is characterized in that:

Symmetry is equipped with four slide bars in A, the described lock core, be equipped with fastening and lock bolt of projection on the every slide bar front and back position, described fasten with lock bolt respectively with key and lock body on the translot corresponding matching opened, on the described lock body also symmetry have four pods with the lock bolt corresponding matching

B, described key border be symmetrically fixed with four with the described boss different in size that cooperates of fastening.

The utility model also comprises following scheme: a spring that matches is all adorned in the rear end of every slide bar in the described lock core.

The utility model has the advantages that: when unblanking to insert key, cooperate fastening by key of key to push up in the lock bolt translot on the slide bar in the lock core, key just can drive slide bar and lock core together rotates, and opens lock; If cooperate fastening of key not corresponding with the length of key on any one slide bar, the lock bolt on the slide bar just can not enter the lock bolt translot, at this moment just cannot open lock.

The utility model has adopted a kind of new lockmaking technology, and is simple in structure, and the reliability height can effectively prevent to crack, and changed low, the baroque shortcoming of lock core theftproof performance in the past.

Description of drawings

Fig. 1 is the three-dimensional cutaway view of theftproof lock

Fig. 2 is the three-dimensional view of lock core

Fig. 3 is the three-dimensional view of key

Fig. 4 is the three-dimensional view (only drawing two slide bars) of slide bar

The specific embodiment

Below in conjunction with accompanying drawing for embodiment: as Fig. 1, Fig. 2, shown in Figure 4, symmetry is equipped with four slide bars 2 in the lock core 1, and what be equipped with projection on every slide bar 2 front and back position fastens 3 and lock bolt 4, fasten 3 and lock bolt 4 respectively with key 5 and lock body 6 on translot 7 corresponding matching opened.A spring that matches 8 is all adorned in the rear end of every slide bar 2 in the lock core 1.On the lock body 6 also symmetry have four pods 9 with lock bolt 4 corresponding matching.

As shown in Figure 3, key 5 borders be symmetrically fixed with four with described 3 boss different in size 10 that cooperate of fastening.

When key 5 enters lock core by protective coat 1, cooperate fastening of key 53 corresponding on four slide bars 2 in the cross structure of key 5 boss 10 different in size and the lock core 1, spring 8 by each slide bar 2 rear portion cooperates the location with key 5, lock bolt 4 can be correct the pod 9 by opening on the lock body 6 enter translot 7, thereby make key 5 can drive together Unscrew lock of slide bar 2 and lock core 1.

Claims (2)

1. a theftproof lock comprises lock body, lock core, key, it is characterized in that:

Symmetry is equipped with four slide bars in A, the described lock core, be equipped with fastening and lock bolt of projection on the every slide bar front and back position, described fasten with lock bolt respectively with key and lock body on the translot corresponding matching opened, on the described lock body also symmetry have four pods with the lock bolt corresponding matching

B, described key border be symmetrically fixed with four with the described boss different in size that cooperates of fastening.

2. a kind of theftproof lock according to claim 1 is characterized in that: a spring that matches is all adorned in the rear end of every slide bar in the described lock core.

Images