CN101135200A

CN101135200A - Idle-run spring lock

Info

Publication number: CN101135200A
Application number: CNA2007100358524A
Authority: CN
Inventors: 雷先鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2008-03-05
Anticipated expiration: 2027-09-30
Also published as: CN101135200B

Abstract

The free running spring lock includes one front lock core and one back lock core. The front lock core has locking side pins and side pin returning springs fitting the notches in the balls, and the back lock core has lock pin sliding ways holding lock pins and lock pin returning springs in elasticity greater or smaller than that of the side pin returning springs. At least one of the lock pin and locking side pin has slanted contact surface. The lock body has one back lock core stopping step in the tail, and the step has one notch fitting the lock pin and one other notch to limit the rotation of the back lock core. The present invention has simple and firm structure, high reliability, and good pick-proofing performance.

Description

A kind of idle-run spring lock

Technical field

The invention belongs to mechanical lock, be specifically related to a kind of idle-run spring lock.

Background technology

At present, a kind of mechanical lock that adopts locking side column structure locking is arranged, its lock core can be done 360 ° idle running with respect to the lock body of lock core when lock cuts out.It is a turning set is set between traditional lock core and lock body and forms three layer construction, utilizes the pellet shot from a slingshot that is located on the turning set can be respectively and lock core and the lock body incompatible realization Lock cylinder idling that matches.Though this lock can prevent violent tool sled twistlock core, has the structure more complicated, processing technology is loaded down with trivial details, and cost of production is higher, and must strengthen the deficiency of lock body diameter.

Summary of the invention

The objective of the invention is provides a kind of idle-run spring lock at above-mentioned situation, and idle-run lock pin that this lock adopts is simpler than existing lock core, need not strengthen the lock body diameter, can prevent effectively that violent tool from prizing the twistlock core and unblanking.

The present invention seeks to realize like this: idle-run spring lock, comprise the lock core in lock body, the lock body, lock core and rear lock core before lock core is divided into, on preceding lock core, be provided with the pellet shot from a slingshot of two row's band grooves, on preceding lock core with in the locking side column groove of two row's pellets shot from a slingshot corresponding settings, be provided with the locking side column that can match with the pellet shot from a slingshot upper groove, locking side column is provided with the breach that can match with pellet shot from a slingshot, is provided with the locking side column back-moving spring between the end wall of locking side column and locking side column groove; On rear lock core,, place lock pin in the lock pin chute, the lock pin back-moving spring is set between end wall in the lock pin chute and the lock pin with the corresponding lock pin chute that is provided with of locking side column groove of preceding lock core; The elasticity of lock pin back-moving spring has at least one to adopt the inclined-plane to contact with another greater than the locking side column back-moving spring in lock pin or the locking side column cell wall; Perhaps the elasticity of lock pin back-moving spring has at least one to adopt the inclined-plane to contact with another less than the locking side column back-moving spring in locking side column or the lock pin runner wall; Be provided with step at the lock body afterbody with the rear lock core stop bit, the corresponding breach of opening with the lock pin chute on the step, lock pin in the lock pin chute 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 characteristics of the present invention's lock are to adopt former and later two lock cores, utilize lock pin in the rear lock core and the locking side column in the preceding lock core and pellet shot from a slingshot under different conditions, to cooperate the axially-movable of controlling locking side column, front and back lock core can be fused or separate, thus before reaching lock core rear lock core and lock body are done 360 ° idle running relatively when locking.The required component of this structure are few, and are simple in structure, firm, good reliability.Adopt the lock of Lock cylinder idling 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 thoroughly solved powerful unblanking and a destructive difficult problem of unblanking, further improved the theftproof performance of lock by preceding lock core.Adopt two row's pellets shot from a slingshot can further reduce the mutual opening rate of lock.

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

Description of drawings

Fig. 1 is the structural representation of first embodiment of the invention.

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

Fig. 3 is the partial top view of Fig. 1.

Fig. 4 is the left view of Fig. 1.

Fig. 5 is the different user mode schematic diagrames of Fig. 1.

Fig. 6 is that the B-B of Fig. 5 is to sectional view.

Fig. 7 is the partial top view of Fig. 5.

Fig. 8 is the structural representation of second embodiment of the invention.

Fig. 9 is the partial top view of Fig. 8.

Figure 10 is the different user mode schematic diagrames of Fig. 8.

Figure 11 is the partial top view of Figure 10.

Figure 12, Figure 13 schematic diagram that to be different pellet shot from a slingshot match with different locking side column.

The specific embodiment

Embodiment 1

See Fig. 1 to Fig. 4, the present invention includes the lock core in lock body 4, the lock body 4, lock core 1 and rear lock core 10 before lock core is divided into, on preceding lock core 1, be provided with the pellet shot from a slingshot 3 of two row's band grooves 15, on preceding lock core 1 with in the locking side column groove 13 of two row's pellets shot from a slingshot 3 corresponding settings, be provided with the locking side column 6 that can match with pellet shot from a slingshot 3 upper grooves 15, locking side column 6 is provided with the breach 5 that can match with pellet shot from a slingshot 3, is provided with locking side column back-moving spring 2 between the end wall of locking side column 6 and locking side column groove 13; On rear lock core 10,, place lock pins 7 in the lock pin chute 12, between end wall 11 in the lock pin chute and the lock pin 7 lock pin back-moving spring 8 is set with the locking side column groove 13 corresponding lock pin chutes 12 that are provided with of preceding lock core 1; The elasticity of lock pin back-moving spring 8 is greater than locking side column back-moving spring 2, and lock pin 7 adopts inclined-plane 16a to contact (perhaps the cell wall of locking side column groove adopts the inclined-plane to contact with lock pin) with the cell wall of locking side column groove 13; Be provided with step 9 at lock body 4 afterbodys of tapered end with rear lock core 10 stop bits, on the step 9 with the lock pin chute 12 corresponding breach 17 of opening, lock pin 7 in the lock pin chute 12 can match with this breach 17, also be provided with the spacing breach 19 of restriction rear lock core 10 rotational angles on this step 9, the afterbody of rear lock core 10 is provided with the projection 18 that matches with lock body 4 afterbody upper limit breach 19.

Idle running principle of the present invention: the state before unblanking is seen Fig. 5, Fig. 6, and preceding lock core 1 lock body 4 and rear lock core 10 is relatively done 360 ° of idle running; When unblanking (referring to Fig. 1), insert key 14, make motion in the breach 5 of each pellet shot from a slingshot 3 on locking side column 6, the groove of arranging on pellet shot from a slingshot 3 15 is parallel with the both sides of locking side column groove 13 in order, groove 15 forms beeline channel, the beeline channel that locking side column 6 forms by groove 15 can be along 13 axially-movables of locking side column groove, locking side column groove 13 before the preceding lock core 1 of rotation aligns the lock pin 7 in the rear lock core 10 in the lock core 1, because the elasticity of lock pin back-moving spring 8 is greater than locking side column spring 2, lock pin 7 with locking side column 6 in sinciput is gone forward side by side locking side column groove 13, at this moment front and

back lock core

1,10 fuse by lock pin 7, preceding lock core 1 relative rear lock core 10 can not dally, and can unblank; During locking, earlier preceding lock core 1 is rotated an angle (referring to Fig. 7), because lock pin 7 adopts inclined-plane 16a to contact (referring to Fig. 3) with locking side column groove 13a wall, locking side column cell wall 13a forces in the lock pin 7 withdrawal rear lock cores 10, make between locking side column 6 and the lock pin 7 contact end face just be in before and after two

lock cores

1,10 interface, simultaneously, breach 5 on the locking side column 6 aligns with pellet shot from a slingshot 3, pellet shot from a slingshot 3 can move in the breach on the locking side column 65, extract key 14 out, 3 one-tenth lack of alignment of pellet shot from a slingshot, the groove 15 on it is upset, locking side column 6 is simultaneously by the stuck location of pellet shot from a slingshot, and lock is got back to Fig. 5 again, the state that lock core can dally before during locking shown in Figure 6; Lock pin 7 on the rear lock core 10 matches with breach on the lock body 4 rear end steps 9, can play the effect that rear lock core 10 and lock body 4 is connected as a single entity and locatees; The angular range that rear lock core 10 rotates matches definite by the projection on it 18 with spacing breach 19 on the lock body rear end.

Embodiment 2

See Fig. 8, Fig. 9, with the difference of embodiment 1 be the elasticity of lock pin back-moving spring 8 less than locking side column back-moving spring 2, the lock pin runner wall adopts inclined-plane 16b to contact (perhaps locking side column employing inclined-plane contacts with the lock pin runner wall) with locking side column 6.

The operating principle of this structure is identical with embodiment 1, only utilizes locking side column 6 to stretch into front and back lock core to be fused in the rear lock core.Fig. 8, Figure 9 shows that the situation when unblanking, because the elasticity of lock pin back-moving spring 8 is less than locking side column back-moving spring 2, locking side column 6 with the lock pin in the rear lock core 7 in sinciput is gone forward side by side the lock pin chute, at this moment front and back lock

core

1,10 fuses by locking side column 6, and preceding lock core 1 relative rear lock core 10 can not dally; Situation is seen Figure 10, Figure 11 during locking, earlier preceding lock core 1 is rotated an angle (referring to Figure 11), because the lock pin runner wall adopts inclined-plane 16b to contact (referring to Fig. 9) with locking side column 6, the lock pin runner wall forces in the preceding lock core of locking side column withdrawal, make between locking side column and the lock pin contact end face just be in before and after the interface of two lock cores, preceding relative rear lock core of lock core and lock body can relatively rotate, and realize 360 ° of idle running.

Pellet shot from a slingshot of the present invention and locking side column can also adopt different forms, and as shown in figure 12, the groove 15 on the pellet shot from a slingshot 3 is square, and locking side column 6 with matching is a square spigot; The groove that Figure 13 then illustrates on the pellet shot from a slingshot is a circular arc, and locking side column with matching is the circular arc head.The shape of pellet shot from a slingshot upper groove and the locking side column that cooperates with it are not subjected to the restriction of cited embodiment.

Claims

1. idle-run spring lock, 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, on preceding lock core, be provided with the pellet shot from a slingshot of two row's band grooves, on preceding lock core with in the locking side column groove of two row's pellets shot from a slingshot corresponding settings, be provided with the locking side column that can match with the pellet shot from a slingshot upper groove, locking side column is provided with the breach that can match with pellet shot from a slingshot, is provided with the locking side column back-moving spring between the end wall of locking side column and locking side column groove; On rear lock core,, place lock pin in the lock pin chute, the lock pin back-moving spring is set between end wall in the lock pin chute and the lock pin with the corresponding lock pin chute that is provided with of locking side column groove of preceding lock core; The elasticity of lock pin back-moving spring has at least one to adopt the inclined-plane to contact with another greater than the locking side column back-moving spring in lock pin or the locking side column cell wall; Perhaps the elasticity of lock pin back-moving spring has at least one to adopt the inclined-plane to contact with another less than the locking side column back-moving spring in locking side column or the lock pin runner wall; Be provided with step at the lock body afterbody with the rear lock core stop bit, the corresponding breach of opening with the lock pin chute on the step, lock pin in the lock pin chute 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.