CN2534309Y

CN2534309Y - Antitheft cylinder lock

Info

Publication number: CN2534309Y
Application number: CN 02230943
Authority: CN
Inventors: 苏毅; 陈文雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-13
Filing date: 2002-04-13
Publication date: 2003-02-05
Anticipated expiration: 2012-04-13

Abstract

The utility model discloses an antitheft cylinder lock which relates to the lock technical field. An external lock core and an internal lock core are arrange in a lock body, at least two groups of lock core ball holes arranged in I shape along a key groove are arranged in the external lock core; at least a lock core ball hole and the lock ball hole of the lock communicated with the lock core ball hole in each group of lock core ball holes of the external lock core are provided with an inner ball and an outer ball; the key groove of the external lock core corresponds to a key groove of the internal lock core. Compared with the prior art, the utility model has strong anti theft performance and has the advantages of reliable use and convenient unlocking.

Description

Anti-pirate of the open cylinder lock

Technical field

The utility model relates to lock technology field, especially a kind of mechanical cylinder lock.

Background technology

Lockset at present commonly used is mainly by lock body and be contained in a lock core in the lock body etc. and constitute, in lock core, be provided with one group of pellet shot from a slingshot hole, with also be provided with one group of corresponding pellet shot from a slingshot hole in each corresponding lock body in pellet shot from a slingshot hole of lock core, outer pellet shot from a slingshot and interior pellet shot from a slingshot are housed in the corresponding pellet shot from a slingshot hole in each lock body, the lock core, in the pellet shot from a slingshot hole in lock body the spring of pellet shot from a slingshot being pushed to lock core are arranged.When pellet shot from a slingshot was stuck in the mating face of lock core and lock body, lock core can not rotate, and when the mating face of two pellets shot from a slingshot just in time overlapped with the mating face of lock core, lock body, lock core can rotate, and opens lockset.The lockset of this structure is adopted TO by the lawless person easily, in order to address this problem, people have invented various lock bodies and lock core, as " built-in twin-lock core type lockset " (patent announcement number be CN2097876U), this technology is to adopt lock body interior along the inside and outside structure that the two-phase lock core is set of the lock core hole of lock body, the key dislocation of outer section lock core and inner segment lock core.When unblanking, must earlier key be inserted and be positioned at outer section outside core, after rotating 180 °, outer section lock core aligns with the key that is positioned at inner inner segment lock core, again key is further inserted the inner segment lock core, the mating face that makes the two-phase lock in-core respectively organize pellet shot from a slingshot overlaps with the mating face of lock body, lock core, thereby rotates outer section, inner segment lock core simultaneously, opens lockset.To scheme making outer section lock core before not rotating, block the inner segment plug keyway, prevent other people pirate of the open inner segment section lock core.There are the following problems for the lockset of this structure: 1, its structure design has just been Duoed one section lock core than the lockset of using always, behind 180 ° of the outer section of unlocking tool pirate of the open rotation lock cores, the key of outer section lock core is alignd with the key of inner segment lock core, because pellet shot from a slingshot in all not installing in the outer section lock core, therefore, still available similar pirate of the open TO rotates the inner segment lock core, realizes pirate of the open; 2, when inserting outer section lock core with key, it inserts the location and must rely on pellet shot from a slingshot of inner segment lock core to withstand, and therefore, its positioning accuracy is difficult to guarantee, cause easily open difficult.

Summary of the invention

Subject matter to be solved in the utility model provides the cylinder lock that a kind of anti-pirate of the open is good, reliability is high.

In order to address the above problem, the scheme that the utility model adopts is: it includes lock body and is contained in the outer lock core and the internal cylinder that is contained in this lock body lock core hole inner segment of the outer section of this lock body lock core hole, is provided with two groups of plumbous key both sides in the described outer lock core at least and is the lock core marble hole that " one " font is arranged; Pellet shot from a slingshot and outer pellet shot from a slingshot in being equipped with in the lock marble hole of the lock body that has a lock core marble hole at least in each group lock core marble hole of described outer lock core and communicate therewith; The key of described outer lock core is over against the key of described internal cylinder.

The lock core marble hole of above-mentioned outer lock core and internal cylinder can be provided with respectively four groups, and four groups of lock core marble holes in each lock core are the distribution of " ten " word; Ball preferably is housed on the end face that above-mentioned outer lock core and internal cylinder are joined or between outer lock core and internal cylinder, installs axial thrust bearing.

Owing to adopted such scheme the utility model compared with prior art to have following beneficial effect:

1, anti-pirate of the open is extremely strong.Be the lock core marble hole that " one " font is arranged owing to be provided with two groups of plumbous key both sides in the outer lock core, and each group of outer lock core have a lock core marble hole at least in lock core marble hole and the lock marble hole of the lock body that communicates therewith in be equipped with in pellet shot from a slingshot with outside pellet shot from a slingshot, therefore, can rely on the interior pellet shot from a slingshot in the lock core marble hole that is the arrangement of " one " font to insert the key, seal the outer lock core key from the key both sides.Therefore, even other people are with all interior pellet shot from a slingshot top and lock body, the levelling of outer lock core mating face in the outer lock core, but the pirate of the open outer lock core, but two interior pellets shot from a slingshot in the key still can effectively limit other people by inserting instrument pirate of the open internal cylinder in the outer lock core key in the outer lock core.In addition, can prevent other people behind the pirate of the open outer lock core in that ball or axial thrust bearing are housed between outer lock core and the internal cylinder, rely on the mode pirate of the open internal cylinder of the friction effect of internal cylinder and outer lock core.

2, unblank conveniently.Because the key of outer lock core is over against the key of internal cylinder, when unblanking, can be the same with common lock, once insert key, just turn and unblank, need not in existing, establish the anti-theft unlocking of two-phase lock core, the Xusui section is inserted key, and rotational lock core can be unblanked at twice; Overcome in addition because of the internal cylinder pellet shot from a slingshot inserts the location to key and forbidden to cause the difficult problem of unblanking.

3, key intensity is big, uses reliable.Because being " ten " word, four groups of lock core marble holes in each lock core distribute, therefore its used cross section is that " ten " word key intensity is bigger, can inside and outside lock core be set and the phenomenon that causes key to fracture, in addition, further strengthen anti-pirate of the open performance yet by the origin cause of formation.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the A place sectional view of Fig. 1.

The specific embodiment

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

Among Fig. 1, the embodiment shown in Figure 2, be provided with lock core hole in the lock body 1 of this anti-pirate of the open cylinder lock, outer lock core 2 and internal cylinder 7 are housed in the lock core hole, and the key of outer lock core 2 can insert in the internal cylinder key key from the outer lock core key over against the key of internal cylinder 7 always; Be equipped with annular ball grooves on the end face that outer lock core 2 and internal cylinder 7 are joined, ball 10 is housed in the ball grooves, to reduce the friction that contacts between outer lock core 2 and the internal cylinder 7 as far as possible, the rear end of internal cylinder 7 is provided with an annular cover plate 9 that is connected with lock body 1, it is encapsulated in outer lock core 2 and internal cylinder 7 in the lock core hole, protrude outside the annular cover plate 9 rear end of internal cylinder 7, and be connected with cylinder plate 8.Other mechanical part of the lock that is connected with cylinder plate 8 is a prior art, indicates in this omission.Respectively there are four groups to be the pellet shot from a slingshot hole that " ten " word distributes in outer lock core 2 and the internal cylinder 7, each lock core marble hole in outer lock core 2 and the internal cylinder 7 all with corresponding communicating of lock marble hole that is located on the lock body 1, pellet shot from a slingshot 6, outer pellet shot from a slingshot 5 and marble spring 4 in all being equipped with in each lock core marble hole and the lock marble hole that communicates therewith, the outer end of each lock marble hole is equipped with capping 3.

Claims

1, a kind of anti-pirate of the open cylinder lock, it has lock body (1) and is contained in this lock body (1) lock core hole interior outer lock core (2) and internal cylinder (7), it is characterized in that: be provided with two groups of plumbous key both sides in the described outer lock core (2) at least and be the lock core marble hole that " one " font is arranged; Each group of described outer lock core (2) have a lock core marble hole at least in lock core marble hole and the lock marble hole of the lock body (1) that communicates therewith in be equipped with interior pellet shot from a slingshot (6) and outside pellet shot from a slingshot (5); The key of described outer lock core (2) is over against the key of described internal cylinder (7).

2, anti-pirate of the open cylinder lock according to claim 1 is characterized in that: the lock core marble hole of described outer lock core (2) and internal cylinder (7) respectively has four groups, and four groups of lock core marble holes in each lock core are the distribution of " ten " font.

3, anti-pirate of the open cylinder lock according to claim 1 and 2 is characterized in that: on the end face that described outer lock core (2) and internal cylinder (7) are joined ball (10) is housed.

4, anti-pirate of the open cylinder lock according to claim 1 and 2 is characterized in that: between described outer lock core (2) and the internal cylinder (7) axial thrust bearing is housed.