CN2120853U

CN2120853U - Safety structure for general billiard lock

Info

Publication number: CN2120853U
Application number: CN 92203838
Authority: CN
Inventors: 徐忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-01
Filing date: 1992-03-01
Publication date: 1992-11-04

Abstract

The utility model provides a safety structure for general billiard lock. Ordinary strings can be opened in a short time under the condition of non-damage prime locks by current skeleton keys or wire hooks in society. The utility model does improvement on the basis of prime lock mechanisms aiming at the deficiency. The utility model is characterized in that the wall thickness of the lock smaller than the length of a string. The utility model passing through the improvement completely overcomes that the skeleton keys can open the spring locks, which plays positive effect on theft protection.

Description

Safety structure for general billiard lock

The utility model is mainly used in a kind of Safety Design mechanism of common spring lock.

Existing common spring lock has been continued to use decades, can satisfy antitheft needs substantially, has its certain advantage.But exist an irrational phenomenon within it on portion's project organization, go up some people for society and bored gap, can under the situation of not damaging former lock, in a short period of time lock be opened with special instrument, method (that is: master key), bring harm for family and society.Now common spring lock commonly used is analyzed: as shown in Figure 1, cylinder lock commonly used generally is made up of lock handle (1), lock body (2), rivet (3), spring (4), pellet shot from a slingshot 2 (5), pellet shot from a slingshot 1 (6), lock stamen parts such as (7).Be locked under the duty and be: spring (4) withstands pellet shot from a slingshot 2 (5), and pellet shot from a slingshot 2 (5) withstands pellet shot from a slingshot 1, and (6 〕 And stretch in the lock stamen (7), fix the lock stamen, play the effect of locking.In the time of in key inserts lock stamen (7), by tooth that pellet shot from a slingshot 1 (6) Ya Xia And is concordant with lock stamen groove, key drives locks stamen (7) rotation, lock can be opened.Pellet shot from a slingshot 1 (6) still rotates in company with the lock stamen together in lock stamen the inside when rotation lock stamen (7).It mainly is by several general teeth or iron wire hook pellet shot from a slingshot 1 (6) to be extruded outside the lock stamen (1) that the master key of current trend is unblanked, and fastens the hole or the lock stamen groove of pellet shot from a slingshot 1 (6), and the rotation lock stamen is unblanked.

The purpose of this utility model is exactly the function at master key or iron wire hook, and the internal construction of common spring lock commonly used is improved, and adopts new design organization, make any master key or iron wire hook turn turtle (except that lock destroyed).

Major technique of the present utility model is: the length when rivet length in lock and spring compression, the wall thickness of lock should be less than several pellet shot from a slingshot length sums.

Below the utility model is described in detail.

Fig. 1 is the profile and the cut-away view of common spring lock commonly used.

Fig. 2 is a primary structure enlarged drawing of the present utility model.

Fig. 3 is an another kind of structure chart of the present utility model.

With reference to Fig. 1, the utility model still is made up of lock handle (1), lock body (2) rivet (3), spring (4), pellet shot from a slingshot 2 (5), pellet shot from a slingshot 1 (6), the lock stamen parts such as (7) of common spring lock.Operating principle and common spring are phase-locked together, that is: key inserts in the lock stamen, pellet shot from a slingshot 1 (6) are depressed ， And and lock stamen groove concordant (pellet shot from a slingshot 1 (6) is in the lock stamen at this moment) by the corresponding tooth of key, and key drives the lock stamen and rotates, and lock can be opened.

With reference to Fig. 2, primary structure of the present utility model is: outside derivet (3) length, the length of spring (4) under compressing, and should join less than pellet shot from a slingshot 2 (5), pellet shot from a slingshot 1 (6) and with it length sum B of pellet shot from a slingshot of the wall thickness A of lock.Its operating principle is: when the tooth of master key and iron wire hook inserts in the lock stamen (7), pellet shot from a slingshot 1 (6) can not extruded outside the lock stamen (7), fasten the hole rotation lock stamen (7) of pellet shot from a slingshot 1 (6), lock is opened.Phase-locked together with operating principle and common spring that key is unblanked.

With reference to Fig. 3, do not change the thickness of former lock wall, realize that by length that adds long marble 2 (5) and the length that suitably shortens spring (4), rivet (3) wall thickness A is less than pellet shot from a slingshot 2 (5), pellet shot from a slingshot 1 (6) length sum B.Also be feasible in the practice.Its operating principle is the same.

What only describe among the figure is structure under the situation of two row's pellets shot from a slingshot, is useful for a few row's pellets shot from a slingshot equally or arranges the lock of pellet shot from a slingshot more.

The utility model is simple in structure, and easily processing does not increase cost, has overcome the effect of master key fully.Played positive effect to antitheft.

Claims

1, a kind of lock body [2], rivet [3], spring [4], pellet shot from a slingshot 2[5 of containing], pellet shot from a slingshot 1[6], the lock stamen [7] tumbler lock mechanism, it is characterized in that: outside derivet [3] length, the length of spring [4] when compressing, the wall thickness A of lock body [2] is less than pellet shot from a slingshot 2[5], pellet shot from a slingshot 1[6] and pellet shot from a slingshot length sum B that joins with it.