CN201605893U

CN201605893U - Anti-theft lock cylinder

Info

Publication number: CN201605893U
Application number: CN201020140504.0U
Authority: CN
Inventors: 李东
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2010-10-13
Anticipated expiration: 2020-03-25

Abstract

The utility model discloses an anti-theft lock cylinder. The anti-theft lock cylinder adopts the structure that the lock cylinder penetrates a lock body; inside lock springs penetrate a plurality of lock spring holes formed on the inner side of the lock body in one line; springs are arranged in the lock spring holes at the upper parts of the inside lock springs; inside lock springs penetrate lock spring holes formed on the lock cylinder and corresponding to the lock spring holes of the lock body; when a key is inserted into the key hole of the lock cylinder, the outer end surfaces of the inside lock springs of the lock cylinder is parallel and level with the peripheral surface of the lock cylinder; a clamping groove is formed on the inside peripheral surface of the lock cylinder; a clamping column is arranged on the lock body and corresponds to the clamping groove; the clamping column is positioned in the clamping groove; outside lock springs penetrate lock spring holes on the outer side of the lock body; springs are arranged in the lock spring holes at the upper parts of the outside lock springs; outside lock springs penetrate the lock spring holes of the lock cylinder corresponding to the lock spring holes of the outside lock springs; the top surfaces of the outside lock springs are parallel and level with the peripheral surface of the lock cylinder; the external diameters of the outside lock springs in the lock cylinder are larger than or equal to the width of the key hole in the lock cylinder; and through holes with the same external diameters as those of the outside lock springs are formed on the key corresponding to the outside lock springs.

Description

Anti-theft lock

Technical field

The utility model relates to a kind of anti-theft lock.

Background technology

Existing snap kayser is at the lock core on key plane, after the thief uses snag to insert the keyhole of lock core, each snap in the lock core can be levered up and opens lockset, and theftproof is poor.

Summary of the invention

The purpose of this utility model is to have the poor problem of lock core theftproof now in order to solve, and provides a kind of theftproof reasonable anti-theft lock.

The utility model is by lock body, lock core, several inboard snaps, outside snap, several springs, the card post is formed, lock core is located in the lock body, be equipped with inboard snap in the inboard locking tappet hole of offering several in one line of lock body, in the locking tappet hole on each inboard snap top spring is set, wear inboard snap in the locking tappet hole of offering with the corresponding lock core of each locking tappet hole of lock body, insert the keyhole of lock core when key after, the outer face of the inboard snap of each of lock core is concordant with the outer peripheral face of lock core, the inboard side face of lock core offers draw-in groove, the lock body of corresponding this draw-in groove is provided with the card post, this card post is arranged in draw-in groove, lock core can rotate, but under the stopping of card post, can not from lock body, not extract out, be equipped with outside snap in the locking tappet hole in the lock body outside, this outside snap and several inboard snaps are in alignment, be provided with spring in the locking tappet hole on snap top, the outside, with wear outside snap in the locking tappet hole of the corresponding lock core of locking tappet hole of outside snap, each locking tappet hole top rivet clasp of lock body, the end face of outside snap is concordant with the outer peripheral face of lock core, and the external diameter of the outside snap in the lock core is more than or equal to the width of lock core inside keyhole.

Offer and the identical open-work of outside snap external diameter with the position of the corresponding key of outside snap.

Antitheft principle of the present utility model is: after key inserts lock core, outside snap in the lock core is entrapped in the open-work in the key outside, because the external diameter of outside snap is more than or equal to the width of lock core inside keyhole, outside snap stops the keyhole of lock core, the used unlocking tool of burglar can not put in keyhole and lever up each inboard snap and unblank, the used unlocking tool of burglar can not put in keyhole from the both sides of outside snap and lever up each inboard snap and unblank, and then has guaranteed the theftproof of lockset.

The beneficial effects of the utility model are: the setting of outside snap makes lock core and then makes lockset have theftproof.

Description of drawings

Fig. 1 is the cross-sectional schematic of the utility model embodiment.

Fig. 2 is for wanting the key schematic diagram that mates with the utility model.

The specific embodiment

See also shown in Figure 1, be embodiment of the present utility model, this embodiment is by lock body 1, lock core 2, several

inboard snaps

4,6, outside snap 7,8, several springs 5, card post 9 is formed, lock core 2 is located in the lock body 1, be equipped with inboard snap 4 in the inboard locking tappet hole of offering several in one line of lock body 1, in the locking tappet hole on each inboard snap 4 top spring 5 is set, wear inboard snap 6 in the locking tappet hole of offering with the corresponding lock core 2 of lock body 1 each locking tappet hole, after key 3 inserts the keyhole of lock core 2, the outer face of the inboard snap 6 of each of lock core 2 is concordant with the outer peripheral face of lock core 2, the inboard side face of lock core 2 offers draw-in groove 21, the lock body 1 of corresponding this draw-in groove 21 is provided with card post 9, this card post 9 is arranged in draw-in groove 21, lock core 2 can rotate, but under the stopping of card post 9, can not from lock body 1, not extract out, be equipped with outside snap 7 in the locking tappet hole in lock body 1 outside, this outside snap 7 is in alignment with several inboard snaps 4, be provided with spring 5 in the locking tappet hole on snap 7 tops, the outside, with wear outside snap 8 in the locking tappet hole of the corresponding lock core 2 of the locking tappet hole of outside snap 7, each locking tappet hole top rivet clasp of lock body 1, the end face of outside snap 8 is concordant with the outer peripheral face of lock core 2, and the external diameter of the outside snap 8 in the lock core 2 is more than or equal to the width of lock core 2 inner keyholes.

As shown in Figure 2, offer the open-work 31 identical with the position of outside snap 8 corresponding keys 3 with outside snap 8 external diameters.

Antitheft principle of the present utility model is: after key 3 inserts lock core 2, outside snap 8 in the lock core 2 is entrapped in the open-work 31 in key 3 outsides, because the external diameter of outside snap 8 is more than or equal to the width of lock core 2 inner keyholes, outside snap 8 stops the keyhole of lock core 2, the used unlocking tool of burglar can not put in keyhole and lever up each inboard snap 6 and unblank, the used unlocking tool of burglar can not put in keyhole from the both sides of outside snap 8 and lever up each inboard snap 6 and unblank, and then has guaranteed the theftproof of lockset.

Claims

1. an anti-theft lock is by lock body (1), lock core (2), several inboard snaps (4; 6), several springs (5), card post (9) is formed, lock core (2) is located in the lock body (1), be equipped with inboard snap (4) in the inboard locking tappet hole of offering several in one line of lock body (1), in the locking tappet hole on each inboard snap (4) top spring (5) is set, wear inboard snap (6) in the locking tappet hole of offering with the corresponding lock core of each locking tappet hole of lock body (1) (2), insert the keyhole of lock core (2) when key (3) after, the outer face of each inboard snap (6) of lock core (2) is concordant with the outer peripheral face of lock core (2), the inboard side face of lock core (2) offers draw-in groove (21), the lock body (1) of corresponding this draw-in groove (21) is provided with card post (9), this card post (9) is arranged in draw-in groove (21), lock core (2) can rotate, but under the stopping of card post (9), can not from lock body (1), not extract out, it is characterized in that: also have outside snap (7; 8), wear outside snap (7) in the locking tappet hole in lock body (1) outside, this outside snap (7) is in alignment with several inboard snaps (4), be provided with spring (5) in the locking tappet hole on snap (7) top, the outside, with wear outside snap (8) in the locking tappet hole of the corresponding lock core of locking tappet hole (2) of outside snap (7), each locking tappet hole top rivet clasp of lock body (1), the end face of outside snap (8) is concordant with the outer peripheral face of lock core (2), and the external diameter of the outside snap (8) in the lock core (2) is more than or equal to the width of the inner keyhole of lock core (2).

2. a kind of anti-theft lock according to claim 1 is characterized in that: described position with the corresponding key of outside snap (8) (3) offers the open-work (31) identical with outside snap (8) external diameter.