CN2423352Y

CN2423352Y - Maste

Info

Publication number: CN2423352Y
Application number: CN 00230028
Authority: CN
Inventors: 张贤能
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-27
Filing date: 2000-05-27
Publication date: 2001-03-14
Anticipated expiration: 2010-05-27

Abstract

The utility model relates to a lock core which prevents back insertion, which is composed of a lock core shaft, a marble hole which is arranged on the lock core shaft, a key inserting hole arranged in the lock core shaft, and an inserting sheet groove and an annular concave groove which are arranged on the top part of the lock core shaft. The annular concave groove is used for fixation of an unlocking inserting sheet. The utility model is characterized in that a totally enclosed shape is formed between the inner part of the lock core shaft of the deep part of the key inserting hole and the bottom part of the inserting sheet groove. After the utility model adopts the totally enclosed shape structure which is formed between the inner part of the lock core shaft of the deep part of the key inserting hole and the bottom part of the inserting sheet groove, exogenous impurity can not pass through the lock core, the lock core possesses a theftproof function, and the utility model can be used for various locksets.

Description

Lock core is inserted in a kind of anti-back

The utility model relates to a kind of lock core of lockset, specifically a kind of anti-theft lock.

The lockset that extensively adopts is cylinder lock in the market, especially many with straight trough shape and " cross " lockset certificate, with the door lock is example, it is by lock body, the lock core that is installed in the lock body reaches the switch formation related with lock core, in lock core shaft, have the pellet shot from a slingshot hole, have key hole in the lock core shaft, the top of lock core shaft has inserted slot, the top of lock core shaft also has the annular groove of the inserted sheet of fixedly unblanking, the lock core of this class lockset can connect from key port to inserted sheet one end of unblanking, therefore, with steel wire at an easy rate inserting surface destroy the structure of lock, perhaps directly open lock, like this, just stayed hidden danger for thief's crime, applicant has all proved this point to this through repeatedly testing, and therefore this lock core structure must improve.

The purpose of this utility model is improved and lock core is inserted in a kind of anti-back designed at above-mentioned prior art.

The technical solution of the utility model is achieved in that a kind of anti-back insertion lock core of design, it is formed by having the annular groove that top that the top that has key hole, lock core shaft in pellet shot from a slingshot hole, the lock core shaft has inserted slot, a lock core shaft also has an inserted sheet of fixedly unblanking in lock core shaft, the lock core shaft, it is characterized in that: constitute totally enclosed in the lock core shaft in key hole deep and between the inserted slot bottom.

Lock core is inserted in aforesaid a kind of anti-back, it is characterized in that the pellet shot from a slingshot hole in the lock core shaft linearly distributes along the key direction of insertion.

Lock core is inserted in aforesaid a kind of anti-back, it is characterized in that the pellet shot from a slingshot hole in the lock core shaft is axial symmetrical distribution along the key direction of insertion.

Lock core is inserted in aforesaid a kind of anti-back, it is characterized in that the pellet shot from a slingshot hole in the lock core shaft is the distribution of " ten " font along the key direction of insertion.

Lock core is inserted in aforesaid a kind of anti-back, it is characterized in that the number in pellet shot from a slingshot hole can be set to any number.

When the utility model uses, identical with the existing lockset mode of unblanking, that is: use the key corresponding to insert in the keyhole rotary locking cylinder and can open lockset with lockset.

The utility model is because the structure of formation totally enclosed between having adopted in the lock core shaft in key hole deep bottom inserted slot, and foreign matter can not pass lock core as steel wire etc., and possess antitheft function.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described:

Fig. 1 is a sectional drawing of the present utility model;

Fig. 2 is a schematic perspective view of the present utility model.

See also accompanying drawing 1 and accompanying drawing 2, design a kind of anti-back and insert lock core, for copper material is made; It is formed by having the annular groove 4 that top that the top that has key hole 3, lock core shaft 1 in pellet shot from a slingshot hole 2, the lock core shaft 1 has inserted slot 6, a lock core shaft 1 also has an inserted sheet 5 of fixedly unblanking in lock core shaft 1, the lock core shaft 1, its method is that the inserted sheet 5 of unblanking is inserted in the inserted slot 6, make it corresponding with the position of annular groove 4, then, be inserted in the annular groove 4 with the steel annulus, the inserted sheet 5 of can fixedly unblanking like this is in the lock core shaft 1 in key hole 3 deeps and constitute totally enclosed between inserted slot 6 bottoms; Can insert easily and unblank corresponding to the key of this lock, and other foreign matter can't inject from the deep of key hole 3 and unblank because of after the totally enclosed in the lock core is set again, thereby the utlity model has anti-theft feature.

The utility model can and constitute different locks with different lock body coupling, as door lock, safety cabinet lock etc., during making, only needs pellet shot from a slingshot hole in pellet shot from a slingshot hole and the lock core shaft 1 on the lock body position is corresponding with it to get final product.

Provide a kind of anti-back to insert lock core, it is characterized in that the pellet shot from a slingshot hole 2 in the lock core shaft 1 linearly distributes along the key direction of insertion; This is a kind of the most frequently used lock core structure.

Provide a kind of anti-back to insert lock core, it is characterized in that pellet shot from a slingshot hole 2 in the lock core shaft 1 is along axially being symmetrically distributed in the key direction of insertion; The also corresponding distribution of Dui Ying key with it is difficult for preparation, and this set is adapted to make lock safer, insurance.

Provide a kind of anti-back to insert lock core, it is on the basis of aforementioned lock core structure, makes the pellet shot from a slingshot hole 2 in the lock core shaft 1 be the distribution of " ten " font along the key direction of insertion.

Lock core is inserted in above-mentioned various anti-back, it is characterized in that the number in pellet shot from a slingshot hole 2 can be set to any number; Like this pellet shot from a slingshot hole count can be set freely as required, and reach safe and reliable purpose.

Claims

1, lock core is inserted in a kind of anti-back, it is formed by having the annular groove (4) that top that the top that has key hole (3), lock core shaft (1) in pellet shot from a slingshot hole (2), the lock core shaft (1) has inserted slot (6), a lock core shaft (1) also has inserted sheet (5) of fixedly unblanking in lock core shaft (1), the lock core shaft (1), it is characterized in that: constitute totally enclosed between bottom inserted slot (6) in the lock core shaft (1) in key hole (3) deep.

2, lock core is inserted in a kind of anti-back according to claim 1, it is characterized in that the pellet shot from a slingshot hole (2) in the lock core shaft (1) linearly distributes along the key direction of insertion.

3, lock core is inserted in a kind of anti-back according to claim 1 and 2, it is characterized in that the pellet shot from a slingshot hole (2) in the lock core shaft (1) is axial symmetrical distribution along the key direction of insertion.

4, insert lock core according to claim 1 or 2 or 3 described a kind of anti-backs, it is characterized in that the pellet shot from a slingshot hole (2) in the lock core shaft (1) is the distribution of " ten " font along the key direction of insertion.

5, insert lock core according to claim 1 or 2 or 3 or 4 described a kind of anti-backs, it is characterized in that the number in pellet shot from a slingshot hole (2) can be set to any number.