CN201460459U

CN201460459U - Clutch structure of idle run lock pin

Info

Publication number: CN201460459U
Application number: CN2009200649651U
Authority: CN
Inventors: 雷先鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-29
Filing date: 2009-06-29
Publication date: 2010-05-12
Anticipated expiration: 2019-06-29

Abstract

The utility model discloses a clutch structure of an idle run lock pin which comprises a lock body, a front lock pin and a rear lock pin arranged in the lock body, a locking edge post which is matched with a lock pin marble with a V-shaped groove and can make axial movement is arranged on the front lock pin, the rear lock pin is provided with a lockpin, the tail portion of the lock body is provided with a step for stopping the rear lock pin, a sleeve is fixed on the front lock pin and is sleeved on the rear lock pin, the sleeve forms clearance fit with the rear lock pin, an elastic locating ball is arranged between the sleeve and the rear lock pin, the tail portion of the lockpin is in a taper shape, and a taper slot matched with the tail portion of the lockpin is arranged on the step on the tail portion of the lock body. The clutch structure changes lockpin tail portion in rear lock pin in the prior art into a taper shape to match with the taper slot on the step on the tail portion of the lock body, a lockpin resetting spring is cancelled, thereby the problem that the lock can not be normally used since the lockpin resetting spring loses elasticity can be completely solved, the lock reliability is improved, and the service life is prolonged.

Description

The clutch structure of idle-run lock pin

Technical field

The utility model belongs to mechanical lock, relates to a kind of clutch structure of idle-run lock pin.

Background technology

Have class lock to adopt idle-run lock pin in the mechanical lock, the lock core of these locks is made up of forward and backward lock core, will realize clutch between them by clutch structure usually between preceding lock core and the rear lock core.Chinese patent application 200810030910.9,200810031195.0 discloses the clutch structure of relevant idle-run lock pin.Comprise the lock pin and the lock pin back-moving spring that are located in the rear lock core in this clutch structure, lock core was realized before the clutch of front and back lock core entered or withdraws from by lock pin.This clutch structure is in use found some shortcomings, owing to frequently unblank to shut for a long time, the lock pin back-moving spring can produce metal fatigue, elasticity weakens, and adds the abrasive dust of component and the dirt that dust forms, and its elasticity further weakens, so that when unblanking lock pin is resetted, lock always is in idling conditions, lock can't be opened the reliability of influence lock.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of clutch structure of idle-run lock pin of better reliability is provided.

Realize that the technical scheme that the utility model purpose adopts is: a kind of clutch structure of idle-run lock pin comprises lock body, is located at preceding lock core and rear lock core in the lock body; Before lock core be provided with cooperate with lock core marble with v-depression can axially-movable locking side column; Be placed with lock pin in the lock pin chute of rear lock core, the lock body afterbody is provided with the step with the rear lock core stop bit; Described sleeve is fixed on the preceding lock core and is enclosed within on the rear lock core, and sleeve and rear lock core matched in clearance are provided with the elasticity positioning bead between sleeve and rear lock core; The afterbody of described lock pin is taper; Described lock body afterbody step is provided with the cone tank that matches with the lock pin afterbody.

Described lock core marble is blade marble and cylinder-shaped marble.

The utility model changes the lock pin afterbody in the prior art rear lock core into taper and matches with cone tank on the lock body afterbody step, cancelled the lock pin back-moving spring, therefore can solve fully because of the lock pin back-moving spring follows the string and cause locking the problem that normally to use, improve the reliability of lock, increase the service life.The utility model is fit to the blade marble of all kinds of band v-depressions and the lock core that cylinder-shaped marble matches with locking side column.

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 vertical view of Fig. 1.

Fig. 3 is the different user mode schematic diagrames of Fig. 1.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is a different structure schematic diagram of the present utility model.

The specific embodiment

Embodiment 1

See Fig. 1, Fig. 2, the clutch structure of idle-run lock pin, comprise lock body 2, preceding lock core 1 and rear lock core 11 in the lock body 2, before lock core 1 upper edge axis to be provided with some be one group blade marble group by two blade marbles 16, be provided with the locking side column 6 that can match in the locking side column groove on the preceding lock core 1 with v-depression on the blade marble, locking side column 6 is provided with step-like groove 7, the top of locking side column groove is provided with and the locking side column card 8 that scalariform groove 7 matches of appearing on the stage, preceding, be with sleeve 3 on the rear lock core, between sleeve 3 and locking side column 6, be provided with radially back-moving spring 5 of locking side column, between the end wall of locking side column 6 and locking side column groove, be provided with the axial back-moving spring 4 of locking side column; Place lock pin 9 in the lock pin chute 18 of rear lock core 11, the afterbody 19 of lock pin 9 is taper; The lock body afterbody is provided with the step 13 with rear lock core 11 stop bits, and this step 13 is provided with the cone tank 10 that matches with lock pin afterbody 19; On the lock core 1, sleeve 3 and rear lock core 11 matched in clearance were provided with the elasticity positioning bead of being made up of steel ball 14 and spring 15 on rear lock core 11, be provided with the hole and match with steel ball 14 on sleeve 3 before sleeve 3 was fixed on; Rear lock core 11 is provided with sword iron 12.

The operating principle of the clutch structure of idle-run lock pin: see Fig. 1 when unblanking, Fig. 2, insert key 17, locking side column 6 radially moves downward, make card 8 be positioned at the topping bar of step-like groove 7 of locking side column 6, locking side column 6 can axially-movable, press arrow again and rotate preceding lock core 1, driving rear lock core by the sleeve on the lock core 1 before being fixed on 3 rotates with respect to lock body 2, the tapered tail 21 of ramp effect lock pin 9 in rear lock core of the cone tank 10 on the step 13 of lock body afterbody, the elastic force that forces lock pin 9 to overcome the axial back-moving spring 4 of locking side column enters in the locking side column groove of preceding lock core 1, before inciting somebody to action, rear lock core fuses, and realizes unblanking; See Fig. 3, Fig. 4 when locking, rotate forward and backward lock core by arrow, when the lock pin in the rear lock core 9 when cone tank on the lock body afterbody step aligns, locking side column under its axial action of reset spring, lock pin 9 pushed up back in the rear lock core with lock body afterbody step on cone tank coincide, forward and backward lock core separates, extract key 17 out, locking side column 6 returns are realized locking.If unblank with non-matching key or instrument, locking side column 6 can not cooperate to do radially and moves downward with blade marble 16, can't axially-movable under the stop bit of card 8, even if rear lock core 11 rotates with respect to lock body 2, under locking side column 6 stops, lock core 1 before cone tank 10 on the lock body afterbody step 13 also can't force lock pin 9 to enter, if lock core 1 before still rotating in this case, because the sleeve 3 before being fixed on the lock core 1 adopts the elasticity positioning bead to be connected with rear lock core 11, in case rotate torsion greater than the resistance of elasticity positioning bead to sleeve 3, preceding lock core 1 will be done idle running by relative together rear lock core 11 with sleeve 3, can't unblank.

The blade marble 16 that cooperates with locking side column 6 in the utility model is not limited to present embodiment, can also be other form in the prior art.

Embodiment 2

Another kind of structure of the present utility model as shown in Figure 5, except that the cylinder-shaped marble 20 that adopts the band v-depression with locking side column 6 cooperates, other is identical with embodiment 1.The cylinder-shaped marble of band v-depression also can be other form in the prior art.

Claims

1. the clutch structure of an idle-run lock pin comprises lock body, is located at preceding lock core and rear lock core in the lock body; Before lock core be provided with cooperate with lock core marble with v-depression can axially-movable locking side column; Place lock pin in the lock pin chute of rear lock core, the lock body afterbody is provided with the step with the rear lock core stop bit; It is characterized in that described sleeve be fixed on before on the lock core and be enclosed within on the rear lock core, sleeve and rear lock core matched in clearance are provided with the elasticity positioning bead between sleeve and rear lock core; The afterbody of described lock pin is taper; Described lock body afterbody step is provided with the cone tank that matches with the lock pin afterbody.

2. the clutch structure of idle-run lock pin according to claim 1 is characterized in that described lock core marble is blade marble and cylinder-shaped marble.