CN201460467U

CN201460467U - Lock adopting idle lock cores with interior and exterior milling tooth blades

Info

Publication number: CN201460467U
Application number: CN200920065507XU
Authority: CN
Inventors: 雷先鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-10
Filing date: 2009-08-10
Publication date: 2010-05-12
Anticipated expiration: 2019-08-10

Abstract

The utility model discloses a lock adopting idle lock cores with interior and exterior milling tooth blades, comprising a front lock core and a rear lock core in the lock body. The front lock core is provided with locking side columns which are matched with blade springs with V-shaped grooves and can move axially. The lock holes on the blade springs are provided with protruded parts which can be matched with the interior and exterior milling teeth of the key in the middle parts or the ends; the rear lock core is provided with a lock pin; a step which stops the rear lock core is arranged at the tail of the lock body; a sleeve is fixed on the front lock core and is sleeved on the rear lock core; the sleeve is in clearance fit with the rear lock core; elastic positioning beads are arranged between the sleeve and the rear lock core; the tail of the lock pin is cone-shaped; and the step at the tail of the lock body is provided with a cone-shaped groove matched with the tail of the lock pin. The utility model dispenses with the lock pin reset spring in the prior art, thus completely solving the problem that the lock can not be used normally as the lock pin reset spring perishes, improving the reliability of the lock and prolonging the service life.

Description

A kind of lock that adopts inside and outside mill teeth lamina idle-run lock core

Technical field

The utility model belongs to mechanical lock, relates to a kind of lock that adopts inside and outside mill teeth lamina idle-run lock core.

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 200810031951.X discloses a kind of clutch structure of 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 lock of the inside and outside mill teeth lamina idle-run of employing lock core of better reliability is provided.

Realize that the technical scheme that the utility model purpose adopts is: adopt the lock of inside and outside mill teeth lamina idle-run lock core, comprise lock body, be located at preceding lock core and rear lock core in the lock body; Before lock core upper edge axis be provided with some to be one group blade marble group by two blade marbles, to be provided with the blade marble back-moving spring between two blade marbles; One side of each blade marble is provided with v-depression, the centre is provided with rectangular lockhole, in the blade marble group therein the lockhole end of the lockhole of blade marble middle part and another blade marble be respectively equipped with can with the protuberance that matches with the pellet shot from a slingshot cell wall and the boss of tartar on the key; Before be provided with in the locking side column groove on the lock core can match with v-depression on the blade marble can axially-movable locking side column; Locking side column is provided with step-like groove, the top of locking side column groove is provided with and the locking side column card that the scalariform groove matches of appearing on the stage, on preceding lock core, be with sleeve, between sleeve and locking side column, be provided with radially back-moving spring of locking side column, between the end wall of locking side column and locking side column groove, be provided with the axial back-moving spring of 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.

The utility model matches with the interior mill teeth and the outer mill teeth of key respectively because of its blade marble group, so be called the lock that adopts inside and outside mill teeth lamina idle-run lock core.

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.

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

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

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

Fig. 5 is the vertical view of Fig. 4.

The specific embodiment

See Fig. 1 to Fig. 3, adopt the lock of inside and outside mill teeth lamina idle-run lock core, comprise preceding lock core 1 and rear lock core 11 in lock body 2, the lock body 2; Before lock core 1 upper edge axis be provided with some to be one group blade marble group by two

blade marbles

16,19, to be provided with blade marble back-moving spring 17 between two

blade marbles

16,19; One side of each

blade marble

16,19 is provided with v-depression 23, the centre is provided with rectangular lockhole 22, in the blade marble group therein the lockhole end of the lockhole of a blade marble 16 middle part and another blade marble 19 be respectively equipped with can with the pellet shot from a slingshot cell wall 24 of band tartar and the protuberance 18,25 that boss 26 matches on the key 21; Before be provided with in the locking side column groove on the lock core 1 can match with v-depression 23 on the

blade marble

16,19 can axially-movable locking side column 6, 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, on forward and backward lock core, be with sleeve 3, 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 20 of rear lock core 11, the afterbody 27 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 27; 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.

Operating principle of the present utility model: see Fig. 1 to Fig. 3 when unblanking, insert key 21, on the key 21 band pellet shot from a slingshot cell wall 24 of tartar and boss 26 respectively with blade marble 16, protuberance 18 in 19 the lockhole, 25 cooperate, make each blade marble 16, v-depression 23 alignment of 19 1 sides, 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 27 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. 4, Fig. 5 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 21 out, locking side column 6 returns are realized locking.If unblank with non-matching key or instrument, locking side column 6 not can with

blade marble

16,19 cooperations are done radially and are moved downward, 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.

Claims

1. a lock that adopts inside and outside mill teeth lamina idle-run lock core comprises lock body, is located at preceding lock core and rear lock core in the lock body; Before lock core upper edge axis be provided with some to be one group blade marble group by two blade marbles, to be provided with the blade marble back-moving spring between two blade marbles; One side of each blade marble is provided with v-depression, the centre is provided with rectangular lockhole, in the blade marble group therein the lockhole end of the lockhole of blade marble middle part and another blade marble be respectively equipped with can with the protuberance that matches with the pellet shot from a slingshot cell wall and the boss of tartar on the key; Before be provided with in the locking side column groove on the lock core can match with v-depression on the blade marble can axially-movable locking side column; Locking side column is provided with step-like groove, the top of locking side column groove is provided with and the locking side column card that the scalariform groove matches of appearing on the stage, on preceding lock core, be with sleeve, between sleeve and locking side column, be provided with radially back-moving spring of locking side column, between the end wall of locking side column and locking side column groove, be provided with the axial back-moving spring of 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; 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.