CN2213207Y

CN2213207Y - Theft-proof cylinder lock

Info

Publication number: CN2213207Y
Application number: CN 93233603
Authority: CN
Inventors: 彭楚湘
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-01
Filing date: 1993-04-01
Publication date: 1995-11-22
Anticipated expiration: 2001-03-30

Abstract

The utility model relates to a theft-proof cylinder lock, comprising a lock body, a lock core, a cylinder, a spring, etc. The utility model is characterized in that the diameters of the cylinder hole of the lock core and the cylinder of the lock core are enlarged to 0.5 to 1 millimeter by adopting the cylinder method with various sizes, and one end of the cylinder hole of the lock body near the cylinder of the lock core is provided with a stop step. The safety coefficient of the product is high, the lock can not be opened by other mechanical means (no destructibility) except for the original lock key, the utility model has the advantages of simple structure, convenient processing and easy use, and is suitable for the new-typed improved theft-proof lockset of various cylinder locks.

Description

Theft-proof cylinder lock

The utility model is a kind of novel anti-theft cylinder lock, is the lock that a kind of vi have high safety, daily life are used.

The cylinder lock set of existing production and use, particularly padlock are because also there are many defectives in the technical pattern imperfection.Existing cylinder lock is made up of lock body, lock core, pellet shot from a slingshot and spring etc., and its principle is to be in diverse location by lock spring and the short pellet shot from a slingshot that differs of this two group leader of lock core marble under spring action.When closed, lock spring inserts between lock body and the lock core under the effect of spring, plays the purpose of fixed lock core; And when opening, key inserts in the lock core hole, acts on lock core marble by the deep mixed roller seating space of key, and the lock body edge is got back on the lock spring top that is inserted between lock body and lock core, thereby makes lock core rotate the purpose that reaches unlatching.Because the lock spring and the lock core marble equal diameters of existing cylinder lock so as long as use a kind of special key, just the pellet shot from a slingshot between lock body and lock core all can be expressed in the lock body, can reach the purpose of unblanking by rotary locking cylinder equally.Thereby broken one key left fixing of a lock.Made the safety lock non insurance.Therefore must transform existing cylinder lock set,, accomplish that really a lock can only be opened by a key, with the person of guaranteeing the country and people masses and the safety of property to remedy the defective of existing cylinder lock.

Task of the present utility model provides a kind of lock of vi have high safety, is a kind of novel anti-theft cylinder lock.

To achieve these goals, solution of the present utility model is: be made up of lock body, lock core, pellet shot from a slingshot and spring etc., it is characterized in that: adopt big or small pellet shot from a slingshot method: with 0.5～1 millimeter of the enlarged diameter of lock core marble hole and lock core marble, end at the close lock core marble of lock marble hole is processed into the identical hole of lock core marble bore dia, forms a prevention step.

The utlity model has following advantage: 1, vi have high safety except that first wife's key, with other mechanical means (not containing destructiveness), all can not reach the purpose of unblanking; 2, simple in structure, processing and easy to use; 3, be applicable to the improved novel anti-theft lockset of various cylinder locks.

Brief description of drawings:

Fig. 1: the sectional view that is the utility model size pellet shot from a slingshot method

Below in conjunction with accompanying drawing, the narration detailed in addition to the utility model:

The utility model is made up of lock body ［ 1 ］, lock core ［ 2 ］, pellet shot from a slingshot ［ 3,4 ］ and spring ［ 5 ］, it is characterized in that: adopt big or small pellet shot from a slingshot method, with 0.5～1 millimeter of the enlarged diameter of lock core marble hole ［ 9 ］ and lock core marble ［ 3 ］, end at the close lock core marble ［ 3 ］ of lock marble hole ［ 8 ］ is processed into the identical hole of lock core marble hole ［ 9 ］ diameter, form one and stop step ［ 6 ］, play and stop lock core marble ［ 3 ］ can not all enter in the lock marble hole ［ 8 ］, in the time of making key insertion and extraction again, lock core marble ［ 3 ］ has move place.It is constant to have 1～2 group of lock spring ［ 4 ］ and lock core marble ［ 3 ］ to press original structure simultaneously, and the angle that lock core ［ 2 ］ is freely rotated when closure is excessive, plays the effect of lock core ［ 2 ］ location.As shown in Figure 1.

Claims

1, a kind of anti-theft cylinder lock, form by lock body [1], lock core [2], pellet shot from a slingshot [3,4] and spring [5], it is characterized in that: the diameter of lock core marble hole [9] and lock core marble [3] is big 0.5～1 millimeter, end at the close lock core marble [3] of lock marble hole [8] is processed into the identical hole of lock core marble hole [9] diameter, forms one and stops stage [6].