CN2219937Y

CN2219937Y - Core of spring lock

Info

Publication number: CN2219937Y
Application number: CN 94246017
Authority: CN
Inventors: 施国江
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-18
Filing date: 1994-11-18
Publication date: 1996-02-14
Anticipated expiration: 2004-11-18

Abstract

The utility model relates to a spring lock core, which comprises a lock core body and a lock-core spring hole. The utility model is characterized in that the key tooth hole of a key hole in a lock core and a key basic hole are positioned on two staggered planes. The utility model improves the shape of the key hole in the lock core of the existing spring lock, and can prevent effectively a skeleton key from illegally opening the lock.

Description

A kind of lock cylinder

The utility model relates to a kind of lock cylinder.

The common spring lock pin includes lock core body at present, have pellet shot from a slingshot hole and keyhole on the lock core body, keyhole is made up of the key perforation and the key datum hole two parts on top, several key ribs are arranged on the key datum hole, its pellet shot from a slingshot hole and key datum hole, key perforation are all at grade, even see through the key rib, above-mentioned three still can find a plane than broad.Therefore, there is the so-called MASTERKRY of human to insert, then MASTERKRY headed into the pellet shot from a slingshot hole to key bit hole, upper edge, pellet shot from a slingshot is ejected lock core fully, to reach the purpose of illegal unlatching lock from the lock core key datum hole.

At the problems referred to above, the utility model proposes a kind of MASTERKRY that can prevent and head into the cylinder of spring lock of lock core marble hole.

The utility model comprises lock core body and lock core marble hole, it is characterized in that the key perforation and the key datum hole of keyhole in the lock core is positioned on two planes of staggering.

The utility model improves the shape of keyhole in the existing cylinder of spring lock, can prevent effectively that MASTERKRY is to the illegal unlatching of lock implementation.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is the cross-sectional view of the utility model embodiment 1.

Fig. 2 is the cross-sectional view of the utility model embodiment 2.

With reference to accompanying drawing, the utility model comprises lock core (2) and lock core marble hole (1), the key datum hole (5) of lock core keyhole and key perforation (3) are positioned on two planes of staggering the utility model and look to the pellet shot from a slingshot direction from the key datum hole, can't see key perforation and pellet shot from a slingshot hole fully, thereby MASTERKRY can not insert the pellet shot from a slingshot hole.The illegal unlatching that has prevented MASTERKRY is effectively arranged.

Embodiment 1

With reference to Fig. 1,3 key ribs (4) are arranged in this example key datum hole (5), be applicable to bigger padlock and door lock.

Embodiment 2

With reference to Fig. 2, a key rib (4) is arranged in this example key datum hole (5), be applicable to less cylinder lock.

Claims

1, a kind of lock cylinder comprises lock core body and lock core marble hole, it is characterized in that the key perforation and the key datum hole of keyhole in the lock core is positioned on two planes of staggering.