CN201212288Y

CN201212288Y - Lock core

Info

Publication number: CN201212288Y
Application number: CNU2008201204078U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-25
Filing date: 2008-06-25
Publication date: 2009-03-25
Anticipated expiration: 2018-06-25

Abstract

The utility model relates to a lock core which comprises a lock core shaft housing and a lock core shaft in the lock core shaft housing, a marble hole is arranged on the lock core shaft at the side of the axes of a key hole of the lock core shaft, a deformed marble group is arranged in the marble hole; the deformed marble group comprises a marble body, a jacket and offsetting springs, the jacket is sleeved outside the marble body, the marble body can slide up and down in the jacket, the offsetting spring is arranged between the upper end part of the marble body and the jacket; one side of the marble body forms a projection, and the other side is provided with a groove; a sliding chute and an opening are arranged on the wall of the jacket, the projection on the marble body can penetrate through the sliding chute by the sliding way and is communicated with the key hole; the groove and the opening on the marble body are oppositely matched with a fixed groove arranged on the inner wall of the lock core shaft housing, a through hole is arranged on the part of the lock core shaft opposite to the opening and the fixed groove, a sliding lock piece connected with the groove, the opening and the fixed groove is arranged in the through hole, and an offsetting spring is arranged between the sliding lock piece and the lock core shaft. The utility model has the advantages of compact structure, high burglary prevention property, low cross unlocking rate and strong reliability.

Description

Lock core

Affiliated technical field

The utility model relates to a kind of lock core.

Background technology

Traditional lock core, generally all adopt upper and lower pellet shot from a slingshot or blade as Cipher mechanism, the structure design of upper and lower pellet shot from a slingshot is simpler and cruder, theftproof performance a little less than, and the employing blade is as the lock core of Cipher mechanism, all be to lock by the blade of difference arrangement and the groove fit of lock core shaft's overcoat, its structure design is also more common, and theftproof performance is not strong yet; And in use, the key of insertion swings easily, and the feel of operation is not good, and comparatively speaking, fault rate is also higher.

Summary of the invention

Simple and crude in order to overcome in the prior art common lock core structure designs, theftproof performance is weak, the not good problem of feel of operation, and the utility model provides a kind of lock core, the good reliability that compact conformation, the theftproof performance of this lock core is strong, mutual opening rate is low, use.

The technical scheme that its technical problem that solves the utility model adopts is: comprise the lock core shaft in lock core shaft's overcoat and the lock core shaft's overcoat, in the lock core shaft of the key hole axis sidepiece of lock core shaft, the pellet shot from a slingshot hole is set, the special-shaped pellet shot from a slingshot group of assembling in the pellet shot from a slingshot hole, abnormity pellet shot from a slingshot group comprises the pellet shot from a slingshot body, sheath and back-moving spring, the external cover sheath of pellet shot from a slingshot, the pellet shot from a slingshot body can slide up and down in sheath, between pellet shot from a slingshot body upper end and the sheath back-moving spring is set, one side of pellet shot from a slingshot body forms projection, opposite side is provided with groove, offer chute and opening on the jacket wall, projection on the pellet shot from a slingshot body penetrates chute slidably, and be communicated with key hole, what be provided with on groove on the pellet shot from a slingshot body and opening and the lock core shaft's outer casing inner wall decides the groove relative engagement, with opening, decide to offer through hole in the relative lock core shaft of groove installing contact groove in the through hole, opening and the sliding lock spare of deciding groove, sliding lock spare (and is provided with back-moving spring between the lock core shaft.

The relative pellet shot from a slingshot hole, center of offering in lock core shaft's overcoat and lock core shaft, installing center pellet shot from a slingshot, central spring in the pellet shot from a slingshot hole, center.

Abnormity pellet shot from a slingshot group and the dislocation of center pellet shot from a slingshot are arranged.

The center pellet shot from a slingshot is arranged between two groups of abnormity pellet shot from a slingshot groups.

The utility model is by above-mentioned specific design, adopts the double code mode of special-shaped pellet shot from a slingshot group and common spring to improve the theftproof performance of lock core greatly, has compact conformation, mutual opening rate is low, switching is flexible, reliable high advantage.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

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

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

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the C-C sectional view of Fig. 2;

Fig. 5 is the schematic diagram of Fig. 4 when inserting key turns;

Fig. 6 is the structural representation of special-shaped pellet shot from a slingshot group.

The specific embodiment

As shown in the figure, the utility model comprises the lock core shaft 2 in lock core shaft's overcoat 1 and the lock core shaft's overcoat 1, in the lock core shaft 2 of the key hole 3 axis sidepieces of lock core shaft 2, pellet shot from a slingshot hole 4 is set, the special-shaped pellet shot from a slingshot group of assembling in the pellet shot from a slingshot hole 4, abnormity pellet shot from a slingshot group comprises pellet shot from a slingshot body 5, sheath 6 and back-moving spring 7, pellet shot from a slingshot body 5 overcoat sheaths 6, pellet shot from a slingshot body 5 can slide up and down in sheath 6, between pellet shot from a slingshot body 5 upper ends and the sheath 6 back-moving spring 7 is set, one side of pellet shot from a slingshot body 5 forms projection 8, opposite side is provided with groove 9, offer chute 10 and opening 11 on sheath 6 walls, projection 8 on the pellet shot from a slingshot body 5 penetrates chute 10 slidably, and be communicated with key hole 3, what be provided with on the groove 9 on the pellet shot from a slingshot body 5 and opening 11 and lock core shaft's overcoat 1 inwall decides groove 12 relative engagement, with opening 11, decide to offer through hole 13 in the relative lock core shaft 2 of groove 12, installing contact groove 9 in the through hole 13, opening 11 and the sliding lock spare 14 of deciding groove 12 are provided with back-moving spring 18 between sliding lock spare 14 and the lock core shaft 2.The relative pellet shot from a slingshot hole, center 15 of offering in lock core shaft's overcoat 1 and lock core shaft 2, installing center pellet shot from a slingshot 16, central spring 17 in the pellet shot from a slingshot hole, center 15.Abnormity pellet shot from a slingshot group can design two groups in lock core shaft 2, center pellet shot from a slingshot 16 is arranged between two groups of abnormity pellet shot from a slingshot groups, and special-shaped pellet shot from a slingshot group and the 16 formation dislocation arrangements of center pellet shot from a slingshot.In three groups of 16 pellets shot from a slingshot, the password number of above-mentioned arrangement can reach more than 40 hundred million.When unblanking, insert key, the key moving center of the pushing tow pellet shot from a slingshot 16 that makes progress, make, mating face that following center pellet shot from a slingshot is 16 and lock core shaft 2, the mating face that lock core shaft's overcoat is 1 flushes, the resistance that special-shaped groove on the key two side blocks the projection 8 of pellet shot from a slingshot body 5 one sides simultaneously and overcomes back-moving spring 7 slides up and down each pellet shot from a slingshot body 5 in sheath 6, the groove 9 of pellet shot from a slingshot body 5 opposite sides, groove 12 slippages of deciding on opening 11 on the sheath 6 and lock core shaft's overcoat 1 inwall are alignd, when key will drive lock core shaft 2 and rotates together, decide groove 12 transition face roof pressure sliding lock spare 14 an end and the other end of sliding lock spare 14 pushed in the groove 9 on the pellet shot from a slingshot body 5, make sliding lock spare 14 along with lock core shaft 2 rotates together, reach the purpose of unblanking after key is rotated further and puts in place.After the backward rotation key put in place and extracts key, upper and lower center pellet shot from a slingshot 16 and each pellet shot from a slingshot body be the slippage dislocation about in the of 5, the lock core locking.

Claims

1, a kind of lock core, comprise the lock core shaft in lock core shaft's overcoat and the lock core shaft's overcoat, it is characterized in that in the lock core shaft (2) of key hole (3) the axis sidepiece of lock core shaft (2), pellet shot from a slingshot hole (4) being set, the special-shaped pellet shot from a slingshot group of assembling in the pellet shot from a slingshot hole (4), abnormity pellet shot from a slingshot group comprises pellet shot from a slingshot body (5), sheath (6) and back-moving spring (7), pellet shot from a slingshot body (5) overcoat sheath (6), pellet shot from a slingshot body (5) can slide up and down in sheath (6), between pellet shot from a slingshot body (5) upper end and the sheath (6) back-moving spring (7) is set, one side of pellet shot from a slingshot body (5) forms projection (8), opposite side is provided with groove (9), offer chute (10) and opening (11) on sheath (6) wall, projection (8) on the pellet shot from a slingshot body (5) penetrates chute (10) slidably, and be communicated with key hole (3), what be provided with on the groove (9) on the pellet shot from a slingshot body (5) and opening (11) and lock core shaft's overcoat (1) inwall decides groove (12) relative engagement, with opening (11), decide to offer through hole (13) in the relative lock core shaft (2) of groove (12), installing contact groove (9) in the through hole (13), opening (11) and decide the sliding lock spare (14) of groove (12) is provided with back-moving spring (18) between sliding lock spare (14) and the lock core shaft (2).

2, a kind of lock core according to claim 1 is characterized in that the relative pellet shot from a slingshot hole, center (15) of offering in lock core shaft's overcoat (1) and lock core shaft (2), installing center pellet shot from a slingshot (16), central spring (17) in the pellet shot from a slingshot hole, center (15).

3, a kind of lock core according to claim 2 is characterized in that special-shaped pellet shot from a slingshot group and center pellet shot from a slingshot (16) dislocation arrangement.

4,, it is characterized in that center pellet shot from a slingshot (16) is arranged between two groups of abnormity pellet shot from a slingshot groups according to claim 2 or 3 described a kind of lock cores.