CN201110028Y - Lock head with racing lock core - Google Patents

Abstract

The utility model discloses a lock whose lock core is capable of idling, which comprises a lock body, a front lock core and a rear lock core, wherein a locking side column and a slider are arranged in a locking side column slot which is arranged on the front lock core, the slider and the locking side column are respectively equipped with a projection (groove) and a groove (projection) which are capable of being matched, and a slider reset spring is arranged between the slider and the end wall of the locking side column slot. A lock pin chute is correspondingly arranged on the rear lock core and the locking side column slot of the front lock core, a lock pin is put in the lock pin chute, a lock pin reset spring is arranged between the end wall of the lock pin chute and the lock pin, the elasticity of the lock pin reset spring is bigger than the slider reset spring, at least one of the lock pin or the locking side column uses an inclined plane to contact with another one, and steps and limit gap which are used to stop and rotate the rear lock core are arranged on the tail portion of the lock body. A lock using the chute structure of the lock core of the utility model is capable of effectively preventing a lock core from unlocking through being pried by violent tools.

Description

The tapered end that lock core can dally

Technical field

The utility model belongs to mechanical lock, relates to the tapered end 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 reverses lock core by force, can with on the door fixedly the bolt of tapered end twist off.

The utility model content

The purpose of this utility model is at above-mentioned situation, and the tapered end that provides a kind of lock core to dally, this tapered end can realize effectively preventing that violent tool sled twistlock core from unblanking.

The utility model purpose is achieved in that the tapered end that lock core can dally comprises lock body, the interior lock core of lock body, lock core and rear lock core before lock core is divided into, be provided with the locking side column and the sliding shoe that can match in the locking side column groove on the preceding lock core with the lock core marble groove, 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 utility model 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 owing to adopt former and later two lock cores.Adopt the lock of the utility model lock core clutch structure,, 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.

Further specify technical solutions of the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

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 tapered end that lock core can dally, comprise the lock core in lock body 2, the lock body 2, lock core 1 and rear lock core 12 before lock core is divided into, be provided with the locking side column 4 and the sliding shoe 6 that can match in the locking side column groove on the preceding lock core 1 with lock core marble 15 grooves, 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 utility model: when unblanking, see Fig. 1, inserting key 20 arranges lock core marble 15 in order, make radially inwardly motion of locking side column 4 simultaneously, sliding shoe 6 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 the lock pin 7 in the rear lock core 12 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 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 lock pin 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 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, lock core marble 15 lack of alignment force locking side column 4 radially outward to be moved, 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 sliding shoe 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)

1. tapered end 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, be provided with the locking side column and the sliding shoe that can match in the locking side column groove on the preceding lock core with the lock core marble groove, be respectively equipped with projection and groove or the groove and the 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.

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