CN2851439Y

CN2851439Y - Novel composite theftproof lock

Info

Publication number: CN2851439Y
Application number: CN 200520119411
Authority: CN
Inventors: 方景义
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-05
Filing date: 2005-12-05
Publication date: 2006-12-27
Anticipated expiration: 2015-12-05

Abstract

The utility model discloses a novel composite theft-proof lock, which comprises a lock head, a lock case, and a connecting device which is arranged between the lock head and the lock case, wherein the lock head comprises an outer shell of a lock head, an idle rotation core which is arranged in the outer shell of a lock head, a head core which is arranged in the idle rotation core, and a tail core which is arranged behind the head core, and the head core and a lock hole of the tail core are arranged in a cross shape. When the lock is unlocked, an external key is inserted into the idle rotation core of the lock hole and the head core to be butted on the tail core by adopting the lock head and the connecting device, and the external key can not be impelled continuously; then, the external key is rotated by 90 DEG and is impelled forward, the tail core is opened, the external key is continuously impelled, an internal lock key is impelled into an internal lock, and a door can be opened by rotating the external key. Compared with the prior art that a lock key is directly inserted into a lock hole to rotate to realize the unlocking action, the utility model can effectively prevent insertion and actions of other various lock keys; therefore, the utility model can prevent other people from secretly opening and prying a door by using violence means or other modes.

Description

A kind of NEW TYPE OF COMPOSITE theftproof lock

Technical field

The utility model relates to a kind of theftproof lock, specifically is meant a kind of NEW TYPE OF COMPOSITE theftproof lock that is applied on the security door.

Background technology

Various door theftproof locks are arranged in the market, all adopt the installation clamping plate that anti-theft lock end is installed on the door panel, what also have is welded on the door panel clamping plate are installed, be easy to stolen open or by force means rotate anti-theft lock end and drive clamping plate are installed, perhaps twist off the installation screw, thereby make the connection strap that is installed on the tapered end drive dead bolt and open door.Simultaneously, as long as take off tapered end, just can directly open the door with the easy rotating lock tongue of flat-shaped article with any method; Because the lockhole of above-mentioned theftproof lock is bigger, inserted runins or strong twisting by various flat-shaped article easily, cause being opened steathily and the hidden danger of forcing open the door takes place by others.

Summary of the invention

In order to overcome above-mentioned defective, the utility model purpose provides a kind ofly can be avoided being opened steathily by others and NEW TYPE OF COMPOSITE theftproof lock that the phenomenon of forcing open the door takes place.

In order to achieve the above object, the technical scheme that the utility model adopted is: a kind of NEW TYPE OF COMPOSITE theftproof lock, it comprises tapered end, lock box, places linkage between tapered end and the lock box, described tapered end comprises the tapered end shell, place the outer light inside of tapered end idling core, place the idling core inboard a core, place the tail core of a core back, the lockhole of a core and tail core is the installation of " ten " font.

On described lock box backboard, be provided with back side lock.

Offer interior key at described linkage, at the interior impression breaking groove that offers on the key.

After adopting above-mentioned tapered end and linkage, when unblanking, outer key is inserted a lockhole idling core and an in-core, be butted on the tail core, can not continue to advance.Revolve then and turn 90 degrees, push ahead, open the tail core, continue to advance, interior key is advanced internal lock, rotate key, can open the door, and directly key is inserted the lockhole inward turning in the prior art then the realization unlocking action is compared as can be known; Can prevent effectively that other kinds key from inserting and action, therefore, can prevent that others from utilizing violent means or other modes to open steathily and force open the door.Simultaneously, owing to be added with internal lock, equal to have increased theftproof lock one, owing to offer the impression breaking groove above the interior key, the impression breaking groove can rupture under the situation of violence rotational lock head again, and effectively lockhole in the sealing increases opening difficulty.

Description of drawings

Fig. 1 is a kind of NEW TYPE OF COMPOSITE theftproof lock schematic diagram in the utility model;

Fig. 2 is a kind of NEW TYPE OF COMPOSITE theftproof lock decomposing schematic representation in the utility model;

The specific embodiment

Please refer to shown in Figure 1, illustrate below in conjunction with embodiment and to relate to a kind of novel anti-burglar lock in the utility model, it comprises tapered end, lock box, places linkage between tapered end and the lock box, places the front lock 23 and the back side of lock box front and back to lock 24, places the interior keys 31 in the back side lock 24.

Described tapered end comprises tapered end shell 11, place the idling core 12 of tapered end shell 11 inside, place idling core 12 inboards a core 17, place a core 17 back tail core 13, place tail core 13 outsides spring 14, place the capping 15 on tapered end shell 11 end faces.Because in tapered end shell 11, be provided with idling core 12, prevent that effectively hard thing from inserting the powerful swivel head core 17 in back again.Excuse core 17 is the installation of " ten " font with the lockhole of tail core 13, can effectively reduce lockhole area and hard thing insertion depth, also can prevent the insertions such as key of non-lock simultaneously.Be equivalent to increase one deck lock core, improve safety feature.Described linkage comprises on interior key 31, the key 31 and offers impression breaking groove 311.Described lock box comprises box body 21, box body 21 built-in dead bolts 22, offers positive lock 23 and back side lock 24 on box surface.

At first, idling core 12 is placed in the tapered end shell 11, then, with a core 17 near idling core 12; Then, spring 14 being placed on the outer of tail core 13 places; Then, above-mentioned tail core 13 is placed a core 17 back, and the certain interval of being separated by, a core 17 is the installation of " ten " font with the lockhole of tail core 13, then, capping 15 is placed tapered end core end, and pass through bolt; Then, interior key 31 is connected tail core 13 ends; Then, back side lock 24 is installed on the lock box backboard; At last, front lock 23 is installed on the lock box front.

When unblanking, at first outer key 5 is inserted in an idling core 12 and the core 17, make outer key bit 5 slightly give prominence to segment distances, and prop up tail core 13; Then, outer key revolved turn 90 degrees, pass a segment distance forward, make outer key bit 5 place tail core 13 inside, its unlatching; Then, advance certain distance, lockhole in key core 31 inserts in making, with angle of outer key 5 rotations, key 31 rotations in ordering about, interior key 31 drives dead bolt and rotates, thereby realizes unlocking action.When being subjected to extraneous insurgent violence or the excessive power of twisting off as above-mentioned theftproof lock, impression breaking groove 311 will rupture automatically on the above-mentioned interior key 31, and interior 31 of the keys of fracture remain in the back side and lock 24 lockhole inside, effectively protect dead bolt not to be opened.

In sum, not only need to rotate idling core 12 when unblanking, but also will push ahead twice to outer key 5, and directly key is inserted the lockhole inward turning in the prior art then realize that the action of unblanking compares as can be known; Have and prevent that other kinds key from inserting and action.Therefore, can prevent that others from utilizing violent means or other modes to open steathily and force open the door.

Claims

1, a kind of NEW TYPE OF COMPOSITE theftproof lock, it comprises tapered end, lock box, places the linkage between tapered end and the lock box, described tapered end comprises the tapered end shell, its tapered end is characterised in that: place the tapered end enclosure idling core, place the idling core inboard a core, place the tail core of a core back, the lockhole of a core and tail core to be " ten " font to install.

2, according to the described a kind of NEW TYPE OF COMPOSITE theftproof lock of claim 1, it is characterized in that: on described lock box backboard, be provided with back side lock.

3, according to the described a kind of NEW TYPE OF COMPOSITE theftproof lock of claim 1, it is characterized in that: offer interior key on the described linkage, on interior key, offer the impression breaking groove.