CN2580045Y

CN2580045Y - Two-way double row anti-pick spring ball lock

Info

Publication number: CN2580045Y
Application number: CN 02248281
Authority: CN
Inventors: 张桂锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-27
Filing date: 2002-09-27
Publication date: 2003-10-15
Anticipated expiration: 2012-09-27

Abstract

The utility model relates to a two-way double row anti-prize spring ball lock. The utility model comprises a lock core, two rows of lower bolts, two rows of upper bolts and bolt springs, and the two rows of lower bolts and the two rows of upper bolts are installed in the lock core and a lock head body. The utility model is characterized in that the two rows of lower bolts cross and overpass the central line of the lock core. The structure of the utility model is reasonable, and the two rows of lower bolts in the lock core, which cross and overpass the central line of the lock core, play the function of mutual protection; a phenomenon that unlocking tools are utilized to open the lock core is efficiently limited, and the state of technically opening the lock head is lessened; the utility model is safe, and the anti-prize performance of a lock is enhanced.

Description

The double anti-ball cylinder of dialling of subtend

Technical field

The utility model relates to a kind of tapered end, the double anti-ball cylinder of dialling of particularly a kind of subtend.

Background technology

Following pellet shot from a slingshot in the existing double or double above cylinder lock head is when inserting key, all be no more than the lock core center line, unlocking tool is easy to enter lock core groove, thereby the lock core technical unlocking, the tapered end security performance can not get effective assurance, and people's property is on the hazard.

Summary of the invention

It is a kind of rational in infrastructure, safe and reliable that the purpose of this utility model is to provide, and limited effectively and utilized unlocking tool to open lock core, increased the anti-double anti-ball cylinder of dialling of subtend of dialling performance of lock core.

The purpose of this utility model can reach by following measure: the double anti-ball cylinder of dialling of a kind of subtend, comprise lock core, be loaded on double pellet shot from a slingshot down in lock core and the tapered end, go up pellet shot from a slingshot and marble spring, it is characterized in that: double pellet shot from a slingshot down intersects the center line that surmounts lock core.

The purpose of this utility model can also reach by following measure: be arranged with four anti-muscle of dialling in the lock core groove of lock core.

The utility model has following advantage compared to existing technology: rational in infrastructure, under the state that inserts key, the double pellet shot from a slingshot down in the lock core intersects and surmounts the lock core center line, plays the effect of giving mutual protection; Limited effectively and utilized unlocking tool to open tapered end, significantly reduced the situation of technical opening tapered end; Safe and reliable, strengthened the anti-performance of dialling of tapered end.

Description of drawings

Fig. 1 is a structure sectional view of the present utility model;

Fig. 2 is that A of the present utility model is to topology view;

Fig. 3 is a local amplification view of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1～Fig. 3, the utility model comprises lock core 1, following pellet shot from a slingshot 2, spring 3, key 5, goes up pellet shot from a slingshot 6, tapered end 7 etc.Double down pellet shot from a slingshot 2 and spring 3 are loaded in lock core 1 and the tapered end 7, wherein have the following pellet shot from a slingshot 2 of 1～2 group of subtend to intersect the center line 4 that surmounts lock core 1, play the effect of giving mutual protection.In lock core groove 8, be provided with four anti-muscle 9 of dialling of symmetry in addition.

One group of subtend surmounts the following pellet shot from a slingshot 2 (as shown in Figure 3) of lock core center line 4, its length H ₁+ H ₂The diameter D of＞lock core 1, if there is the people to attempt to carry out technical opening, inserting thickness to lock core groove 8 is H ₃Instrument the time, (H then ₁+ H ₂+ H ₃)-D=h promptly descends pellet shot from a slingshot 2 to have highly for h one insert in the pellet shot from a slingshot hole of tapered end 7 certainly, thereby lock core 1 can't be rotated, and plays the anti-usefulness of allocating for.Owing to be provided with four anti-muscle 9 of dialling in the lock core groove 8, the position is narrow, has greatly limited entering of pock-poking tool in addition, has strengthened the anti-performance of dialling of tapered end.

Claims

1, the double anti-ball cylinder of dialling of a kind of subtend, comprise lock core (1), be loaded on double pellet shot from a slingshot (2) down in lock core (1) and the tapered end (7), go up pellet shot from a slingshot (6) and marble spring (3), it is characterized in that: double pellet shot from a slingshot (2) down intersects and surmounts the center line (4) of lock core (1).

2, tapered end according to claim 1 is characterized in that: be provided with four anti-muscle (9) of dialling in the lock core groove (8) of lock core (1).