CN201011206Y

CN201011206Y - Anti-theft lock head

Info

Publication number: CN201011206Y
Application number: CNU2007200189004U
Authority: CN
Inventors: 孙志浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-03
Filing date: 2007-03-03
Publication date: 2008-01-23
Anticipated expiration: 2017-03-03

Abstract

The utility model discloses a lock head of an antitheft lock, consisting of a lock and a front lock core and a back lock core arranged in the lock. Wherein, the lock and the front lock core and the back lock core are radially provided with a bolt slide internally provided with a spring and a bolt. The front key hole of the front lock core and the back key hole of the back lock core are arranged offset, and the inner end circle of the front lock core is provided with a ring slot communicating with the front key hole. Moreover, a positioning pin is mounted at the same place on the lock with the back key hole, which is clipped in the ring slot; besides, the end surface where the back lock core neighbors the front lock core and the side of the back key far from the front lock core in the rotation direction are provided with bosses. The antitheft lock head in the structure promises easy alignment for the two lock holes, i.e. the front lock hole and the back lock hole which can be easily inserted by the key. Moreover, when the key is fully pulled out, the front and back lock holes are at an offset state, thereby providing a convenient operation and perfect antitheft effect.

Description

A kind of theftproof lock tapered end

Technical field

The utility model relates to a kind of lockset, is specifically related to a kind of theftproof lock tapered end with twin-lock cored structure.

Background technology

In the daily life, its lock core of door lock that people often use is an one, and the lock core of this structure is easy to be pried open or opened by other unlocking tool because it is simple in structure.At present, a kind of twin-core theftproof lock has appearred in market, and this lock comprises lock body, sets gradually preceding lock core, rear lock core in the lock body.During use, first key partly inserts preceding lock core, and the keyhole of lock core overlapped with the keyhole of rear lock core before lock core to certain angle made before rotating, and again key was inserted internal cylinder, and then turns over the switching that certain angle just can be realized lock.The lock of this structure, though increased the difficulty that lock is pried open, but there is following deficiency, the one, the difficult alignment of the lockhole of forward and backward lock core, key inserts the back keyhole and relatively requires great effort, the 2nd, the lockhole of forward and backward lock core just can be pulled out at the position key that overlaps, and can not make former and later two lockholes be in the state of dislocation all the time when key is extracted entirely, and therefore the theftproof lock of this structure exists use inconvenience and the not strong shortcoming of theftproof.

The utility model content

The technical problems to be solved in the utility model is the defective that can not be in the dislocation state at the difficult alignment of the lockhole of the existing forward and backward lock core of twin-core theftproof lock, former and later two lockholes when key is extracted entirely all the time, provides a kind of former and later two lockholes to be easy to align and former and later two lockholes are in the dislocation state all the time when key is extracted entirely theftproof lock.

In order to solve the problems of the technologies described above, the utility model provides a kind of theftproof lock tapered end of following structure, comprise lock body, in lock body, be provided with preceding lock core, rear lock core, lock body and preceding lock core, rear lock core radially be provided with the pellet shot from a slingshot slideway, spring, pellet shot from a slingshot are housed in the pellet shot from a slingshot slideway, the preceding keyhole of preceding lock core and the back keyhole of rear lock core shift to install, its design feature is: the inner periphery of lock core is provided with the annular groove that is communicated with preceding keyhole before described, be provided with alignment pin with back keyhole phase place same position on the lock body, alignment pin is stuck in the annular groove; On the end face of rear lock core and preceding lock core adjacency, be provided with boss apart in a back keyhole and preceding lock core rotation direction side far away.

Adopt the anti-theft lock end of said structure, owing to be provided with boss on the end face of rear lock core and preceding lock core adjacency, when overlapping with lock core before the key turns to forward and backward keyhole, boss can stop key to be rotated further, so key is easy to insert the back keyhole.Again because the inner periphery of preceding lock core is provided with the annular groove that is communicated with preceding keyhole, be provided with alignment pin with back keyhole phase place same position on the lock body, alignment pin is stuck in the annular groove, when forward and backward keyhole overlaps, after key was extracted from the back keyhole, alignment pin just blocked the projection of key head, can not extract key in the keyhole in the past, have only preceding keyhole is gone back to original position could a key to extract entirely, therefore can guarantee that forward and backward keyhole is in the dislocation state all the time.

As to improvement of the technical scheme, in the two row's pellet shot from a slingshot slideways that are provided with the corresponding lock body in rear lock core position, its slideway quantity of row wherein drains into one less than another.Be provided with like this and can prevent to be locked in the process of opening or closing, before current, rear lock core forwards to together during the original position of keyhole, because misoperation is extracted key when forward and backward keyhole overlaps in the position.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:

Fig. 1 is an end face structure schematic diagram of the present utility model;

Fig. 2 is the sectional view along the A-A line shown in Figure 1;

Fig. 3 is the sectional view along the B-B line shown in Figure 1;

Fig. 4 is the end face structure schematic diagram of internal cylinder;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the structural representation of the used key of the utility model.

The specific embodiment

As shown in Figure 1 to Figure 3, the theftproof lock tapered end is made up of lock body 1 and the preceding lock core 2 and the rear lock core 3 that are contained in the lock body 1.Lock body 1 is provided with two row's pellet shot from a slingshot slideways 4 with the cooperation place radial symmetric of preceding lock core 2, every row's number is four, lock body 1 is provided with two row's pellet shot from a slingshot slideways 4 with the cooperation place radial symmetric of rear lock core 3, above a ways number be three, below a ways number be two, spring 5 and pellet shot from a slingshot 6 are housed in the pellet shot from a slingshot slideway 4.Before lock core 2 and rear lock core 3 radially respectively to establish the pellet shot from a slingshot slipway location of a row and lock body 1 corresponding and the pellet shot from a slingshot slideway 4 of pellet shot from a slingshot 6 is housed, its slideway number is that preceding lock core 2 is provided with four rear lock cores 3 and is provided with three.The preceding keyhole 8 of preceding lock core 2 and 180 ° of settings of the back keyhole of rear lock core 39 dislocation.Before the inner periphery of lock core 2 be provided with the annular groove 10 that is communicated with preceding keyhole 8, be provided with alignment pin 11 in the position of 180 ° of phasic differences mutually with preceding keyhole 8 on the lock body 1, alignment pin 11 is stuck in the annular groove 10.On the end face of rear lock core 3 and preceding lock core 2 adjacency, back keyhole 9 and preceding lock core 2 rotation directions at a distance of a side far away promptly the back lockhole below be provided with boss 12, the shape of boss 12 such as Fig. 4, shown in Figure 5.

Anti-theft lock end with said structure, its preceding lockhole and back keyhole can also misplace 30 °, 60 °, 90 °, 120 °, 150 °, 210 °, 240 °, 270 °, 300 °, 330 ° etc. and be convenient to other angle that pellet shot from a slingshot slideway space is arranged, preferably misplace 90 °, 180 °, 270 ° for the ease of using.Pellet shot from a slingshot slideway number on lock body 1, preceding lock core 2 and the rear lock core 3 also can be made other combination and variation, is not limited only to the compound mode of 3 three of above-mentioned preceding 2 four rear lock cores of lock core.

During use, key 13 parts are as shown in Figure 6 inserted preceding keyhole 8, key 13 heads contact rear lock core 3 end faces, rotate counterclockwise key 13, preceding lock core 2 rotates thereupon, when keyhole 8 overlaps with keyhole 9 positions, back before turning to, alignment pin 11 blocks the projection 14 that is positioned at key 13 heads, this moment, key 13 can not be extracted, because the key 13 that stops of boss 12 can not rotate, again key 13 was further inserted back keyhole 9; Be rotated further key 13, when forward and backward lock core turns to the original position of preceding lock core together, owing to lack one than a top row with following one quantity of arranging the pellet shot from a slingshot slideway on the corresponding lock body 1 in rear lock core 3 positions, key 13 is blocked and can not extract by pellet shot from a slingshot, has only rotation through a week or several weeks, key 13 could be extracted from back keyhole 9 when rear lock core 3 went back to original position, thereby realized opening or closing of lock.After lock opens or closes, key is extracted, this moment, key can only be extracted from the keyhole 9 of back, because alignment pin 11 blocks the projection 14 of key 13 heads, extract in the keyhole 8 in the past, have only backward rotation key 13 to boss 12, boss 12 stops that key 13 is rotated further, keyhole 8 just in time is positioned at the original position that misplaces with back keyhole 9 before this moment, and key is just extracted in the keyhole 8 in the past.

Claims

1. theftproof lock tapered end, comprise lock body (1), in lock body (1), be provided with preceding lock core (2), rear lock core (3), lock body (1) and preceding lock core (2), rear lock core (3) radially be provided with pellet shot from a slingshot slideway (4), spring (5) is housed in the pellet shot from a slingshot slideway (4), pellet shot from a slingshot (6), the preceding keyhole (8) of preceding lock core (2) and the back keyhole (9) of rear lock core (3) shift to install, it is characterized in that: the inner periphery of lock core (2) is provided with the annular groove (10) that is communicated with preceding keyhole (8) before described, lock body (1) is gone up with back keyhole (9) phase place same position and is provided with alignment pin (11), and alignment pin (11) is stuck in the annular groove (10); On the end face of rear lock core (3) and preceding lock core (2) adjacency, back keyhole (9) is provided with boss (12) with preceding lock core (2) rotation direction at a distance of a side far away.

2. theftproof lock tapered end according to claim 1 is characterized in that: keyhole (8) and 180 ° of back keyhole (9) dislocation before described.

3. theftproof lock tapered end according to claim 1 and 2 is characterized in that: respectively establish row's pellet shot from a slingshot slideway on lock core before described (2), the rear lock core (3), lock body (1) is gone up with preceding lock core (2), rear lock core (3) relevant position and is arranged with two row's pellet shot from a slingshot slideways.

4. theftproof lock tapered end according to claim 3 is characterized in that: in the two row's pellet shot from a slingshot slideways that are provided with the corresponding lock body in rear lock core (3) position (1), its slideway quantity of row wherein drains into one less than another.