CN2399481Y

CN2399481Y - Dual-layer master structure

Info

Publication number: CN2399481Y
Application number: CN 99225064
Authority: CN
Inventors: 冯跃武
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-10
Filing date: 1999-09-10
Publication date: 2000-10-04
Anticipated expiration: 2009-09-10

Abstract

The utility model relates to a double-deck lock core structure which solves the problem that the existing door locks all have single-deck lock core structure and have the problem of unsafe hidden troubles. An internal and an external lock cores are installed in the lock body and the end of the external lock core is provided with an external lock core interlocking block. A location notch is arranged in the external lock core and an internal lock core interlocking block is arranged on the end of the internal lock core. Corresponding holes are opened in the lock body, the external lock core and the internal lock core and are sealed by lead after positioning marbles and springs are put in the holes and the location notch. The utility model has the advantage that the utility model adopts double-deck lock core structure and increases the security of the door lock, and the lock can be opened only when the internal and the external lock cores are opened simultaneously.

Description

The double-layer lock core structure

The utility model is a kind of double-layer lock core structure.

Existing door lock is the individual layer lock core structure, unblanks conveniently, thereby, exist hidden danger.

The purpose of this utility model is, solves existing existing problem, provides a kind of safety good double-layer lock core structure.

The utility model is achieved in that outer lock core is installed in lock body, internal cylinder is installed in the outer lock core, the end of outer lock core is provided with the outer lock core linked block, outer lock core is provided with locating slot, the end of internal cylinder is provided with the internal cylinder linked block, on lock body, outer lock core, internal cylinder, have corresponding hole, in the hole and the locating slot place put into lead sealing behind location pellet shot from a slingshot, the spring.

Advantage of the present utility model is, adopts the double-layer lock core structure, has increased the safety of door lock, has only and opens inside and outside lock core simultaneously, lock could be opened.

The drawing explanation:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a left view:

Describe in detail below in conjunction with accompanying drawing:

As shown in the figure, outer lock core 2 is installed in lock body 3, internal cylinder 1 is installed in the outer lock core 2, the end of outer lock core 2 is provided with outer lock core linked block 8, outer lock core 2 is provided with locating slot 9, the end of internal cylinder 1 is provided with internal cylinder linked block 7, has corresponding hole on lock body 3, outer lock core 2, internal cylinder 1, reaches the locating slot place and put into location pellet shot from a slingshot 6, spring 4 back lead sealings 5 in the hole.When unblanking, with key with internal cylinder 1 rotation after, at first by the insurance pellet shot from a slingshot of the locked outer lock core of internal cylinder linked block 7 jack-up, after internal cylinder 1 is rotated further 10 degree then, internal cylinder linked block 7 contacts with outer lock core linked block 8 and drives outer lock core 2 rotations, after the common rotation of inside and outside like this lock core, lock could be opened.If be the single internal cylinder of having opened, behind internal cylinder rotation 40 degree, the linked block of inside and outside lock core contacts, because outer lock core is not opened, outer lock core can not rotate, and has also just stoped the continuation rotation of internal cylinder, and so also just not opening, this has locked.

Locating slot, the effect of location pellet shot from a slingshot are that the lockhole on outer lock core and the lock body is correctly located, when inside and outside linked block separates, the resistance that the location pellet shot from a slingshot increases is enough to overcome the rotation friction of inside and outside lock core, outer lock core is no longer rotated with internal cylinder, and the correct return of insurance pellet shot from a slingshot takes out key rapidly.

Claims

1, a kind of double-layer lock core structure, it is characterized in that, outer lock core is installed in lock body, internal cylinder is installed in the outer lock core, the end of outer lock core is provided with the outer lock core linked block, and outer lock core is provided with locating slot, and the end of internal cylinder is provided with the internal cylinder linked block, on lock body, outer lock core, internal cylinder, have corresponding hole, in the hole and the locating slot place put into lead sealing behind location pellet shot from a slingshot, the spring.