CN2325479Y

CN2325479Y - Cylinder lock with double insertions

Info

Publication number: CN2325479Y
Application number: CN 97237678
Authority: CN
Inventors: 潘万发; 孙关生
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-04
Filing date: 1997-09-04
Publication date: 1999-06-23
Anticipated expiration: 2007-09-04

Abstract

The utility model discloses a cylinder lock with double lock cores, which comprises a lock body (1) and lock cores. The utility model is characterized in that each lock core is composed of a front lock core (2) and a back lock core (3). The internal structures of the front lock core (2) and the back lock core (3) can be same with the structure of the existing cylinder lock. The utility model uses the mutual restriction relation of the two lock cores so as to not only thoroughly prevent universal unlocking tools and have the characteristics of simple structure and low manufacturing cost. The utility model can be used for various occasions needing locks.

Description

A kind of twin-lock core ball lock head

The utility model relates to a kind of ball lock head, particularly a kind of ball lock head with two lock cores that prevents that various Universal opener lock tools from opening.

The invention is the improvement of my No. 97237397, Chinese patent application, opens though No. 97237397 patent applications can prevent various Universal opener lock tools up hill and dale, exists structure and simplifies not enough, and manufacturing procedure is many, the problem that cost of manufacture is bigger.

The purpose of this utility model is: provide a kind of and can either prevent various Universal opener lock tools up hill and dale, have the ball lock head that has two lock cores of characteristics simple in structure, that cost of manufacture is low again.

Formation of the present utility model: it comprises lock body (1) and lock core; Be characterized in: lock core is made of preceding lock core (2) and rear lock core (3).

In the above-mentioned twin-lock core ball lock head, the internal structure of described preceding lock core (2) and rear lock core (3) can be identical with the structure of existing cylinder lock.

In the aforesaid twin-lock core ball lock head, the afterbody of the lock tube inwall of described lock body (1) can have a step (4).

Compared with the prior art, the utility model is internal structure former and later two lock cores identical with the structure of existing cylinder lock owing to what adopt, it utilizes the mutual restriction relation of two lock cores, can either prevent various Universal opener lock tools up hill and dale, have characteristics simple in structure, that cost of manufacture is low again.Can be widely used in the occasion of various needs with lock.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Accompanying drawing 1 is an organigram of the present utility model;

Accompanying drawing 2 is the organigram of preceding lock core (2);

Accompanying drawing 3 is the organigram of rear lock core (3);

Structure of the present utility model is except that addressing part, and the structure of other parts is identical with existing common spring tapered end.Common ball lock head all is to be made of lock body, lock core two parts, on lock body and the lock core by being formed by many pellet shot from a slingshot groups that lock core marble, lock core marble hole, lock spring, lock marble hole and lock body spring are constituted.The pellet shot from a slingshot group can be one group, also can be many groups, and if any the cross lock of 4 groups of pellets shot from a slingshot, every group can have many to pellet shot from a slingshot.In order clearly to describe structure of the present utility model, lock core marble, lock core marble hole, lock spring, lock marble hole and lock body spring have been omitted in the accompanying drawing.The utility model is exactly an existing common spring tapered end from the appearance.It is equivalent to the lock core of common spring tapered end is truncated into two sections, promptly obtains preceding lock core (2) and rear lock core (3).Have only preceding lock core (2) and rear lock core (3) all to be unlocked, the utility model just can be unlocked.

The form of ball lock head is a lot, but operating principle all is identical.When promptly shutting, lock spring embeds in the lock core marble hole under the effect of lock body spring, and lock core can not freely be rotated.When opening lock, key is inserted lock core, key bit jack-up lock core marble ejects lock core to the lock spring that embeds lock core marble hole just by lock core marble, and the turn key just can drive the lock core rotation again, and lock is opened.

The Universal opener lock tool is to utilize always to have certain clearance between pellet shot from a slingshot and the pellet shot from a slingshot hole, earlier lock core is applied a torsion, make the aperture of every pair of pellet shot from a slingshot produce certain dislocation, and make lock core marble and lock spring produce certain inclination, then each lock core marble is depressed one by one, make by the lock spring of skew and withdraw from lock core marble hole, when pressure discharges, because the effect of lock body spring, lock spring will recover normal condition and upspring to the lock core direction, and the dislocation that produce owing to the aperture this moment, lock spring is withstood by the lock core marble aperture, forms self-locking.When lock spring withdraws from lock core marble hole and by self-locking, the torsion that applies is rotational lock core then, and lock is opened one by one.That is to say to apply a torsion to lock core earlier, and then each lock core marble is exerted pressure when using the Universal opener lock tool to unblank, could open tapered end.

The utility model is owing to adopted preceding lock core (2) and (3) two lock cores of rear lock core, if lock core (2) before handling earlier is even preceding lock core (2) is unlocked, because the rotation of preceding lock core (2), make the keyhole of rear lock core (3) be blocked, can't handle and open rear lock core (3) by preceding lock core (2).If handle rear lock core (3) earlier, owing to can't cross preceding lock core (2) rear lock core (3) is applied torsion, rear lock core (3) is rotated, therefore also can't handle and open rear lock core (3).Thereby make the utility model except that original key, stopped the possibility that other any instrument is opened.The step (4) of the lock tube inwall afterbody of lock body (1) is in order to block rear lock core (4) with a kind of easy mode, in order to avoid it comes off from lock body (1).The utility model adopts two lock cores, can reach to stop the purpose that other any instrument is opened.Utilize design of the present utility model, lock core is expanded to plural way, prevent that opening effect can not increase, and should be considered as plagiarism of the present utility model and infringement.

Claims

1, a kind of twin-lock core ball lock head, its formation comprises lock body (1) and lock core; It is characterized in that: lock core is made of preceding lock core (2) and rear lock core (3).

2, twin-lock core ball lock head according to claim 1 is characterized in that: lock core (2) is identical with the structure of existing cylinder lock with the internal structure of rear lock core (3) before described.

3, twin-lock core ball lock head according to claim 1 and 2 is characterized in that: the afterbody of the lock tube inwall of described lock body has a step (4).