CN101117860A

CN101117860A - Safety lock head with lock pin capable of idling

Info

Publication number: CN101117860A
Application number: CNA2007100357184A
Authority: CN
Inventors: 雷先鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-12
Filing date: 2007-09-12
Publication date: 2008-02-06
Anticipated expiration: 2027-09-12
Also published as: CN101117860B

Abstract

The present invention discloses a safety lock head with a lock pith turning idly, and comprises a lock body, a front lock pith and a back lock pith, a double-row marble and locking side column, and a sliding block are symmetrically arranged in the front lock pith, matched convex and concave channels are arranged on the sliding block and the locking side column and a reset spring for the sliding block is arranged between the sliding block and the end wall of the locking side column channel; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pin reset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; elasticity of the pin shaft reset spring is larger than that of the sliding block reset spring; at least one of the lock pin or locking side column channel adopts an inclination surface and contacts with the other. A step and a limit gap which are used for stopping and rotting the rear lock pith are arranged at the tail of the lock body. The lock can prevent the violent unlocking and reduces the mutual unlocking rate of the lock.

Description

The safety lock head that a kind of lock core can dally

Technical field

The invention belongs to mechanical lock, relate to the safety lock head that a kind of lock core can dally.

Background technology

Aspect lockset, cylinder lock is the most widely used product always.In the existing cylinder lock, a kind of match locking side column structure of incompatible control lock core open and close of employing is provided with locking side column and band V-shaped groove on lock core pellet shot from a slingshot of locking is arranged, solved the weakness of not anti-skilled unlocking of traditional mechanical cylinder lock and sled twistlock core preferably, its structure can be referring to the ZL99115581.5 patent documentation.But this lock still exists and is difficult to resist the problem that destructive brute force is unblanked.If the unlocking tool that working strength is enough big is prized the twistlock core by force, can with on the door fixedly the bolt of tapered end twist off.And this lock has only row's pellet shot from a slingshot, is being subjected to certain limitation aspect the mutual opening rate reducing.

Summary of the invention

The objective of the invention is at above-mentioned situation, the safety lock head that provides a kind of lock core to dally, this tapered end can realize effectively preventing that violent tool sled twistlock core from unblanking and reduces the mutual opening rate of locking.

The present invention seeks to realize like this: the safety lock head that lock core can dally comprises the lock core in lock body, the lock body, lock core and rear lock core before lock core is divided into, before be arranged with pellet shot from a slingshot and the locking side column that can match with V-shaped groove on the pellet shot from a slingshot and the sliding shoe corresponding of double band V-shaped groove in the lock core with locking side column, be respectively equipped with the projection (groove) and the groove (projection) that can cooperate on sliding shoe and the locking side column, be provided with the locking side column back-moving spring between locking side column and the sliding shoe, between the end wall of sliding shoe and locking side column groove, be provided with the sliding shoe back-moving spring; With the corresponding lock pin chute that is provided with of locking side column groove of preceding lock core, the lock pin chute has an end wall at the afterbody of rear lock core on rear lock core, places lock pin in the lock pin chute, and the lock pin back-moving spring is set between end wall in the lock pin chute and the lock pin; The elasticity of lock pin back-moving spring is greater than the sliding shoe back-moving spring; Have at least one to adopt the inclined-plane to contact in lock pin or the locking side column groove with another; Be provided with the step that is used for the rear lock core stop bit at the lock body afterbody, on this step with the corresponding breach that has of the lock pin chute on the rear lock core, lock pin can match with this breach, also be provided with the spacing breach of restriction rear lock core rotational angle on this step, the afterbody of rear lock core is provided with the projection that matches with lock body afterbody upper limit breach.

The present invention is owing to adopt former and later two lock cores, and pellet shot from a slingshot and the locking side column and the sliding shoe corresponding with locking side column of double band V-shaped groove are set in preceding lock core, utilizes the motion of lock pin between front and back lock core in the rear lock core, thereby realizes the clutch between two lock cores.Adopt the lock of lock core clutch structure of the present invention,, can only drive preceding Lock cylinder idling behind the insertion lock core, the rear lock core that is fixed with sword iron is rotated if use non-matching key to unblank.Make external force act on lock body or rear lock core, thereby solved powerful unblanking and a destructive difficult problem of unblanking completely, further improved the theftproof performance of lock by preceding lock core.Use double pellet shot from a slingshot, more increased the tartar quantity of key, make security performance higher.

Further specify technical solution of the present invention below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the partial top view of Fig. 1.

Fig. 3 is the left view of Fig. 1.

Fig. 4 is the different user mode schematic diagrames of Fig. 1.

Fig. 5 is the partial top view of Fig. 4.

The specific embodiment

See Fig. 1 to Fig. 3, the safety lock head that lock core can dally, comprise lock body 2, lock core in the lock body 2, lock core 1 and rear lock core 12 before lock core is divided into, before be arranged with the pellet shot from a slingshot 15 of double band V-shaped groove and the locking side column 4 that can match with V-shaped groove on the pellet shot from a slingshot and the sliding shoe 6 corresponding in the lock core 1 with locking side column 4, be respectively equipped with the projection 14 (groove) and the groove 13 (projection) that can cooperate on sliding shoe 6 and the locking side column 4, be provided with locking side column back-moving spring 5 between locking side column 4 and the sliding shoe 6, between the end wall of sliding shoe 6 and locking side column groove, be provided with sliding shoe back-moving spring 3; On rear lock core 12 with the corresponding lock pin chute 11 that is provided with of locking side column groove in the preceding lock core 1, lock pin chute 11 has an end wall 10 at the afterbody of rear lock core, place lock pin 7 in the lock pin chute 11, between end wall 10 in lock pin chute 11 and the lock pin 7 lock pin back-moving spring 8 is set; The elasticity of lock pin back-moving spring 8 is greater than sliding shoe back-moving spring 3; Lock pin 7 adopts inclined-plane 16 (referring to Fig. 2) to contact with the locking side column groove; Be provided with step 17 at lock body 2 afterbodys with rear lock core 12 stop bits, on the step 17 with the lock pin chute 11 corresponding breach 9 of opening, lock pin 7 in the lock pin chute 11 can match with this breach 9, also be provided with the spacing breach 18 of restriction rear lock core 12 rotational angles on this step 17, the afterbody of rear lock core 12 is provided with the projection 19 that matches with lock body 2 afterbody upper limit breach 18.

Clutch principle of the present invention: when unblanking, see Fig. 1, inserting key 20 arranges two row's lock core marbles 15 in order, make the radially inwardly motion of two locking side column 4 simultaneously, each is organized sliding shoe 6 and separates with groove 13 (projection) with projection 14 (groove) on the locking side column 4, locking side column groove before the preceding lock core 1 of rotation aligns two lock pins 7 in the rear lock core 12 respectively in the lock core 1, because the elasticity of lock pin back-moving spring 8 is greater than sliding shoe back-moving spring 3, lock pin 7 simultaneously with the sliding shoe in the locking side column groove 6 in sinciput is gone forward side by side the locking side column groove, at this moment front and back lock

core

1,12 fuse by two lock pins 7, and preceding lock core 1 relative rear lock core 12 can not dally; During locking, earlier preceding lock core 1 is rotated an angle, see Fig. 5, because lock pin 7 all adopts inclined-plane 16 to contact (referring to Fig. 2) with the locking side column groove, the locking side column groove forces in the lock pin 7 withdrawal rear lock cores 12, sliding shoe 6 resets, extract key 20 again out, see Fig. 4, each arranges lock core marble 15 lack of alignment forces locking side column 4 radially outward to be moved respectively, and projection 14 (groove) and groove 13 (projection) on sliding shoe 6 and the locking side column 4 are chimeric, locking side column 4 is with sliding shoe 6 location, at this moment between two groups of sliding shoes 6 and the lock pin 7 contact end face just be in before and after two

lock cores

1,12 interface, preceding lock core 1 relative rear lock core 12 can relatively rotate, and realizes idle running.

Claims

1. safety lock head that lock core can dally, comprise the lock core in lock body, the lock body, it is characterized in that lock core is divided into preceding lock core and rear lock core, before be arranged with pellet shot from a slingshot and the locking side column that can match with V-shaped groove on the pellet shot from a slingshot and the sliding shoe corresponding of double band V-shaped groove in the lock core with locking side column, be respectively equipped with the projection (groove) and the groove (projection) that can cooperate on sliding shoe and the locking side column, be provided with the locking side column back-moving spring between locking side column and the sliding shoe, between the end wall of sliding shoe and locking side column groove, be provided with the sliding shoe back-moving spring; With the corresponding lock pin chute that is provided with of locking side column groove of preceding lock core, the lock pin chute has an end wall at the afterbody of rear lock core on rear lock core, places lock pin in the lock pin chute, and the lock pin back-moving spring is set between end wall in the lock pin chute and the lock pin; The elasticity of lock pin back-moving spring is greater than the sliding shoe back-moving spring; Have at least one to adopt the inclined-plane to contact in lock pin or the locking side column groove with another; Be provided with the step that is used for the rear lock core stop bit at the lock body afterbody, on this step with the corresponding breach that has of the lock pin chute on the rear lock core, lock pin can match with this breach, also be provided with the spacing breach of restriction rear lock core rotational angle on this step, the afterbody of rear lock core is provided with the projection that matches with lock body afterbody upper limit breach.