CN201173009Y

CN201173009Y - Picking proof lock core

Info

Publication number: CN201173009Y
Application number: CNU2008200853470U
Authority: CN
Inventors: 罗保德
Original assignee: Individual
Current assignee: Assa Abloy Baodean Security Products Co Ltd
Priority date: 2008-04-07
Filing date: 2008-04-07
Publication date: 2008-12-31
Anticipated expiration: 2018-04-07

Abstract

The utility model relates to an anti-removing lock core, whose structure comprises a lock core shell and a plurality of marble holes which are arranged in the locking core shell, wherein marbles are arranged in the marble holes, a key slot is arranged on the lock core shell in the axial direction, the end portion of the marble extends into the key slot, at least one of the marbles is an anti-removing marble, the length thereof is corresponding to the sum of the deepness of the marble holes and the thickness of the key slot. The anti-removing marble can increase the anti-removing performance of a lock core, and a plurality of shifting pieces can be arranged in the lock core shell, and the end portions of the shifting pieces are used to be inserted into plug holes which are arranged on the lock body, thereby the anti-removing performance of the lock core is further improved.

Description

Theft-proof lock core

Technical field

The utility model relates to the lock core in a kind of safe-guard door lock, relates in particular to a kind of theft-proof lock core.

Background technology

Lock core is the important composition parts of door lock, plays the opening and closing door lock.The structure of the lock core of existing safe-guard door lock comprises lock core shell, in lock core shell, be provided with several pellet shot from a slingshot holes, in the pellet shot from a slingshot hole, be provided with and have differential pellet shot from a slingshot, lock core shell axially on be provided with key, the end of pellet shot from a slingshot extend in the key, under the effect of spring force, the end roof pressure of pellet shot from a slingshot is in the bottom of key.When inserting from the socket position of key with the differential key that adapts of pellet shot from a slingshot in the lock core, the end of key compressing pellet shot from a slingshot, pellet shot from a slingshot is subjected to displacement in the pellet shot from a slingshot hole, and lock core can be realized freely rotating in tapered end.But its anti-poor performance of dialling of the lock core of this traditional structure, the burglar can utilize the instrument of stirring to make all pellets shot from a slingshot realize suitable displacement with feeling, lock core is rotated, and realizes opening of door lock at last.

The utility model content

The purpose of this utility model is at the anti-problem of dialling poor performance of existing door lock core, and a kind of anti-good, safe to use theft-proof lock core of performance of dialling is provided.

The purpose of this utility model can realize by following technical proposal: a kind of theft-proof lock core, comprise lock core shell and be located at the interior some pellets shot from a slingshot hole of lock core shell, pellet shot from a slingshot is provided with pellet shot from a slingshot in the hole, the key that is axially arranged with at lock core shell, the end of pellet shot from a slingshot extend in the key, have at least one to be the anti-pellet shot from a slingshot of dialling in the described pellet shot from a slingshot, the degree of depth in its length and pellet shot from a slingshot hole is corresponding with the thickness sum of key.The thickness sum of the length dimension of anti-group pellet shot from a slingshot and the degree of depth in pellet shot from a slingshot hole and key is corresponding, is meant that the anti-length of dialling pellet shot from a slingshot is equal to or slightly less than their size sums.If under the situation that size equates, cooperate on the key with this lock core, be provided with open-work in corresponding position, after key is inserted in the lock core, open-work is on the key passed in anti-end of dialling pellet shot from a slingshot, that is to say that key is inserted in the key and after putting in place, key can not make the anti-pellet shot from a slingshot of dialling be subjected to displacement in the pellet shot from a slingshot hole.And under smaller situation, size difference between them should be within the thickness range of the common instrument of stirring, at this moment, open-work on the key can be designed to the conical surface with anti-contacted of the pellet shot from a slingshot end of dialling, when key is inserted in the key, this conical surface has certain compressing amount to the anti-pellet shot from a slingshot of dialling, to satisfy the requirement that lock core freely rotates with respect to tapered end.

In this theft-proof lock core, the described anti-length of dialling pellet shot from a slingshot equates with the degree of depth in pellet shot from a slingshot hole and the thickness sum of key.

In this theft-proof lock core, the described anti-socket of dialling pellet shot from a slingshot near key.

In this theft-proof lock core, be provided with the plectrum hole in the described lock core shell, in the plectrum hole, be provided with plectrum, plectrum can slide in the plectrum hole, the outside in the plectrum extended plectrum in its end hole in sliding process, the plectrum hole communicates with key, is provided with the convex body that extend in the key on plectrum.

In this theft-proof lock core, described plectrum hole is a plurality of, and they are located in the lock core shell side by side, and perpendicular to the axis of lock core shell, is equipped with a plectrum in each plectrum hole.

In this theft-proof lock core, the length of described plectrum equals the length in plectrum hole.

Compared with prior art, the beneficial effects of the utility model are:

In lock core shell, be provided with the anti-pellet shot from a slingshot of dialling, and the anti-pellet shot from a slingshot of dialling has above-mentioned dimensional requirement, the burglar is when utilizing instrument that pellet shot from a slingshot is stirred, how to approach no matter stir instrument, it has certain thickness after all, when the instrument of stirring pushes anti-group of pellet shot from a slingshot, be certain to allow the anti-pellet shot from a slingshot of dialling be connected between lock core and the tapered end, even all being struck, other all pellets shot from a slingshot put in place, still have and prevent that group pellet shot from a slingshot blocks and can not realize that lock core freely rotates in tapered end, increase the anti-function of dialling of lock core, guaranteed the safety in utilization of lock core.In lock core, also be provided with plectrum, convex body on the plectrum is used for and corresponding construction on the key matches, the end of plectrum is when reaching the outside, plectrum hole, it can be connected in the socket set on the tapered end, because plectrum can be free to slide in the plectrum hole, when utilizing other instruments to stir plectrum, for the not significantly reference of judgement of plectrum physical location, the position of be difficult to adopting other instruments that plectrum is in to allow lock core freely rotate, this has further increased group performance of preventing of lock core.

Description of drawings

Fig. 1 is that this lock core is assemblied in the local longitudinal sectional view on the tapered end.

Fig. 2 is that this lock core is assemblied in the transverse sectional view on the tapered end.

The specific embodiment

The specific embodiment of this theft-proof lock core is seen Fig. 1, shown in Figure 2.

The structure of this theft-proof lock core comprises columniform lock core shell 2, in lock core shell 2, be provided with several pellet shot from a slingshot holes, be equipped with a pellet shot from a slingshot 7 in each pellet shot from a slingshot hole, have differential between these pellets shot from a slingshot 7, lock core shell 2 axially on be provided with key 11, the end of described pellet shot from a slingshot 7 extend in the key 11.

The length that a pellet shot from a slingshot is arranged in the described pellet shot from a slingshot 7 is all greater than other pellet shot from a slingshot, and it is the anti-pellet shot from a slingshot 8 of dialling, and its length is equal to or slightly less than the degree of depth in a pellet shot from a slingshot hole and the thickness sum of key 11.Key 1 is in the socket position of key 11 is inserted into key 11 time, and tooth platform on the key is the end corresponding matching of pellet shot from a slingshot 7 respectively.On key 1, be provided with open-work 9, key is inserted in the key 11 and when putting in place, anti-end of dialling pellet shot from a slingshot 8 is inserted in the open-work 9, looks anti-the Design of length situation of dialling pellet shot from a slingshot 8, key 1 can slightly be oppressed anti-end of dialling pellet shot from a slingshot 8 in the position of open-work 9, or not compressing.At key 1 during not to anti-end compressing of dialling pellet shot from a slingshot 8, anti-end of dialling pellet shot from a slingshot 8 pass open-work 9 and directly roof pressure on the diapire of key 11.The anti-pellet shot from a slingshot 8 of dialling is at least one, it preferably near the socket of key 11, preferably is positioned at the outermost of all pellets shot from a slingshot 7, in lock core shell 2 position on axially like this when stirring pellet shot from a slingshot 7 with other instruments, all can not get around the anti-pellet shot from a slingshot 8 of dialling, guarantee the anti-function of dialling of theft-proof lock core.

Also can be provided with some plectrums hole 4 on lock core shell 2, these plectrum holes 4 are parallel to each other, and perpendicular to the axis of lock core shell 2, plectrum hole 4 communicates with key 11.Be equipped with a plectrum 3 in each plectrum hole 4, plectrum 3 can slide in plectrum hole 4, and plectrum 3 is when sliding in plectrum hole 4, the outside in extended plectrum hole, its end 4.Be provided with the convex body 5 that stretches in the key 11 on plectrum 3, be provided with corresponding curved groove on key 1, key 1 is inserted in the keyhole internal procedure, and convex body 5 is positioned at curved groove and slides with respect to key 1.The position of convex body 5 on plectrum 3 should guarantee that key 1 is inserted in the key 11 and when locating, the both ends of plectrum 3 are fully retracted in the plectrum hole 4.Certain some position of convex body 5 set curved groove on position on the plectrum 3 and key 1, and the length of plectrum 3 is relevant.Be provided with socket 10 in the corresponding position in plectrum hole 4 on tapered end 6, when extracting key 1, the two ends in plectrum hole 4 face socket 10, and extract in the process of key 1, and under the effect of curved groove, the end of plectrum 3 is inserted in the socket 10.

The length of plectrum 3 generally is the length that equals plectrum hole 4, and plectrum 3 is connected as a single entity with convex body 5, and they generally are the integrated punching moulding.For the ease of assembling plectrum 3 in plectrum hole 4, the breach 12 that when the open end in plectrum hole 4 on the lock core shell 2 is provided with in assembling, passes for plectrum 3 integral body.This breach 12 also can be the gap slot that axially is provided with along lock core shell 2, and gap slot all communicates with plectrum hole 4 and key 11.

Claims

1, a kind of theft-proof lock core, comprise lock core shell and be located at the interior some pellets shot from a slingshot hole of lock core shell, pellet shot from a slingshot is provided with pellet shot from a slingshot in the hole, the key that is axially arranged with at lock core shell, the end of pellet shot from a slingshot extend in the key, it is characterized in that having at least in the described pellet shot from a slingshot one to be the anti-pellet shot from a slingshot of dialling, the degree of depth in its length and pellet shot from a slingshot hole is corresponding with the thickness sum of key.

2, theft-proof lock core as claimed in claim 1 is characterized in that the described anti-length of dialling pellet shot from a slingshot equates with the degree of depth in pellet shot from a slingshot hole and the thickness sum of key.

3, theft-proof lock core as claimed in claim 1 or 2 is characterized in that the described anti-socket of dialling pellet shot from a slingshot near key.

4, theft-proof lock core as claimed in claim 1 or 2, it is characterized in that being provided with in the described lock core shell plectrum hole, in the plectrum hole, be provided with plectrum, plectrum can slide in the plectrum hole, the outside in the plectrum extended plectrum in its end hole in sliding process, the plectrum hole communicates with key, is provided with the convex body that extend in the key on plectrum.

5, theft-proof lock core as claimed in claim 4 is characterized in that described plectrum hole is a plurality of, and they are located in the lock core shell side by side, and perpendicular to the axis of lock core shell, is equipped with a plectrum in each plectrum hole.

6, theft-proof lock core as claimed in claim 5 is characterized in that the length of described plectrum equals the length in plectrum hole.