CN101122190B - Lock with idle rotation lock core structure - Google Patents

Abstract

The invention discloses a lock with an idle rotation lock core structure, which comprises a front lock core and a rear lock core in a lock body, two rows of angle marbles with notches, side marbles matched with the angle marbles and consisting of locking side columns and small marbles, and a sliding block corresponding to the locking side columns, wherein the sliding block and the locking side columns are respectively provided with a convex block (groove) and a concave groove (convex block) which can be matched with each other, and a sliding block reset spring is arranged between the sliding block and the end wall of a locking side column groove; a lock pin sliding groove is arranged on the rear lock core corresponding to the locking side column groove of the front lock core, a lock pin is arranged in the lock pin sliding groove, and a lock pin reset spring is arranged between the end wall in the lock pin sliding groove and the lock pin; the elasticity of the lock pin return spring is larger than that of the sliding block return spring; at least one of the lock pin or the locking side column groove is in contact with the other by adopting an inclined surface. The lock can effectively prevent a violent tool from prying and twisting the lock core to unlock and reduce the mutual unlocking rate of the lock.

Description

A kind of lock with idling lock cylinder structure

technical field

The invention belongs to mechanical locks, and relates to a lock with an idle lock cylinder structure.

Background technique

In terms of locks, the tumbler lock has always been the most widely used product. Among the existing tumbler locks, there is a kind of lock that adopts a locking side post structure that is provided with a locking side post on the lock cylinder, a side pin composed of small pins and an angle pin with a notch to control the opening and closing of the lock core, and is better It solves the weakness of the traditional mechanical pin lock that is not resistant to technical unlocking and picking and twisting the lock cylinder. For its structure, please refer to the ZL200610128732.4 patent document. But this lock still has the problem that it is difficult to resist destructive forceful unlocking. If you use a strong enough lockpicking tool to forcibly twist the lock cylinder, the bolt fixing the lock head can be twisted off.

Contents of the invention

The object of the present invention is to provide a lock with an idling lock cylinder structure in view of the above situation, the lock cylinder of the lock can be idling, so as to effectively prevent violent tools from prying and twisting the lock cylinder to unlock and reduce the mutual opening rate of the lock.

The object of the present invention is achieved in this way: the lock with the idling lock core structure includes the lock core in the lock body, the lock core is divided into a front lock core and a rear lock core, and the front lock core is symmetrically provided with locking side column grooves, and symmetrically arranged There are two rows of angle pins with notches, and side pins composed of locking side posts and small pins matched with the angle pins. The locking side posts are arranged in the locking side post grooves, and the outer sides of the locking side posts are locked in the two locking side post grooves. A sliding block is also provided, and the sliding block is provided with a protrusion or a groove. There is a return spring for the locking side column between the sliding block and the end wall of the locking side column groove; a locking pin slide groove and a locking side column groove of the front lock cylinder are arranged axially on the rear lock cylinder Correspondingly, the lock pin chute has an end wall at the afterbody of the rear lock core, the lock pin is placed in the lock pin chute, and the lock pin return spring is set between the end wall in the lock pin chute and the lock pin; The elasticity is greater than that of the return spring of the sliding block; at least one of the lock pin or the locking side column groove is in contact with the other using an inclined plane; There is a notch corresponding to the lock pin chute on the core, and the lock pin can be matched with the notch. There is also a limit notch on the step to limit the rotation angle of the rear lock core. The bump that matches the upper limit notch on the tail.

The lock of the present invention adopts two front and rear lock cylinders, and a side pin which is composed of a locking side post and a small bullet and a sliding block corresponding to the locking side post is provided in the front lock core to match the angle pin with a gap. The lock pin in the lock cylinder moves between the front and rear lock cylinders, thereby realizing the clutch between the two lock cylinders. Adopting the lock of the lock core clutch structure of the present invention, if a non-matching key is used to unlock the lock, the front lock core can only be driven to idle after the lock core is inserted, and the rear lock core fixed with the lock ruler cannot be rotated. The external force cannot act on the lock body or the rear lock cylinder through the front lock cylinder, thus completely solving the problem of strong and destructive unlocking, and further improving the anti-theft performance of the lock. Due to the adoption of two rows of angle pins, the mutual opening rate of the lock can be reduced.

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is the A-A view of Fig. 1 .

FIG. 3 is a partial top view of FIG. 1 .

Fig. 4 is a left side view of Fig. 1 .

FIG. 5 is a schematic diagram of different usage states of FIG. 1 .

Fig. 6 is a B-B view of Fig. 5 .

FIG. 7 is a partial top view of FIG. 5 .

Detailed ways

See Fig. 1 to Fig. 4, the lock with idling lock cylinder structure includes lock body 2 and the lock cylinder in lock body 2, the lock cylinder is divided into front lock cylinder 1 and rear lock cylinder 12, and front lock cylinder 1 is symmetrically arranged Two rows of notched angle pins 15, side pins composed of locking side columns 4 and small pins 21 matched with the angle pins 15, sliding blocks 6 corresponding to locking side columns 4 are also provided in the two locking side column grooves , the sliding block 6 and the locking side column 4 are respectively provided with a protruding block 14 (groove) and a groove 13 (protruding block) that can be matched, and a locking side column return spring 5 is provided between the locking side column 4 and the sliding block 6 , a sliding block return spring 3 is provided between the sliding block 6 and the end wall of the locking side column groove; on the rear lock core 12, a lock pin chute 11 is set corresponding to the locking side column groove in the front lock core 1, and the lock pin slides Groove 11 has end wall 10 at the afterbody of rear lock core, and lock pin 7 is placed in lock pin chute 11, and lock pin return spring 8 is set between end wall 10 in lock pin chute 11 and lock pin 7; The elasticity of return spring 8 is greater than that of sliding block return spring 3; lock pin 7 adopts inclined plane 16 (referring to Fig. 3) to contact with locking side post groove; Corresponding to the lock pin chute 11, a notch 9 is opened on the top, the lock pin 7 in the lock pin chute 11 can match with the notch 9, and a limit position for limiting the rotation angle of the rear lock cylinder 12 is also provided on the step 17. Notch 18, the rear end of the rear lock cylinder 12 is provided with a projection 19 that matches the upper limit notch 18 at the rear end of the lock body 2.

The clutch principle of the present invention: when unlocking, see Figure 1, insert the key 20 to make the two rows of angle pins 15 arranged in an orderly manner, the locking side post return spring 5 makes the small pin 21 and the two locking side posts 4 move radially inward, and the sliding block 6 and the protrusion 14 (groove) on the locking side column 4 are separated from the groove 13 (protrusion), and the front lock cylinder 1 is rotated so that the two lock pins 7 in the rear lock cylinder 12 are aligned with the two lock pins 7 in the front lock cylinder 1 respectively. To lock the side column groove, because the elasticity of the lock pin return spring 8 is greater than that of the sliding block return spring 3, the two lock pins 7 simultaneously push the sliding block 6 in the locking side column groove forward and enter the locking side column groove, at this time, the front and rear locks The cores 1 and 12 are connected into one body through two lock pins 7, and the front lock core 1 can not rotate idly relative to the rear lock core 12; when locking, the front lock core 1 is first rotated by an angle, as shown in Figure 7, because the lock pins 7 all use inclined planes 16 Contact with the locking side column groove (see Figure 3), the locking side column groove forces the lock pin 7 to retract into the lock cylinder 12, the sliding block 6 is reset, and then the key 20 is drawn out, as shown in Figure 5 and Figure 6. The sequence arrangement forces the small marble 21 and the locking side column 4 to move radially outward, the projection 14 (groove) and the groove 13 (protrusion) on the sliding block 6 and the locking side column 4 are fitted, and the locking side column 4 will Sliding block 6 is positioned, and at this moment the contact end face between sliding block 6 and lock pin 7 just is in the interface of front and rear two lock cores 1,12, and front lock core 1 relative rear lock core 12 can rotate relatively, realizes idling.

Claims (1)

1. lock with idle rotation lock master structure, comprise the lock core in the lock body, it is characterized in that lock core is divided into preceding lock core and rear lock core, be arranged with the locking side column groove in the preceding lock core, and be arranged with two row notched angle marble, match with angle marble by locking side column, the molecular side pellet shot from a slingshot of submissile, locking side column is located in the locking side column groove, the outside of locking side column also is provided with sliding shoe in two locking side column grooves, sliding shoe is provided with projection or groove, locking side column is provided with the groove or the projection that can match with projection on the sliding shoe or groove, 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; It is corresponding with the locking side column groove of preceding lock core that the lock pin chute axially is set on rear lock core, and the lock pin chute has an end wall at the afterbody of 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 elasticity of 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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