CN201326320Y - Lock core of bicycle lock - Google Patents

Abstract

The utility model relates to a lock core of bicycle lock, wherein a lock core shaft outer sleeve is in a cylinder shape, center marble holes are correspondingly opened in the lock core shaft outer sleeve and a lock core shaft, and a center spring, an upper center marble and a lower center marble are mounted in the center marble holes in turn, a special-shaped marble hole is arranged on the lock core shaft on the lateral portion of the shaft line of a key jack, one side of the special-shaped marble hole is communicated with the key jack, and a spring and a special-shaped marble are mounted in the special-shaped marble hole, a projection is formed on one side of the special-shaped marble, and is projected outside the key jack, and the other side of the special-shaped marble and the corresponding inner wall of a lock core shaft outer sleeve are respectively provided with grooves, the lock core shaft which is opposite to the groove is provided with a through hole, and a slide locking piece for connecting the grooves is mounted in the through hole, and a restoring spring is arranged between two ends of the slide locking piece and the lock core shaft. The lock core of bicycle lock overcomes the shortcomings of poor lock core structure, weak anti-theft property and bad operation hand feeling of a normal bicycle lock, and with the design, the lock core of bicycle lock improves the anti-theft and anti-poking property of a lock core, and has the advantages of compact structure, flexible opening and closing and high reliability.

Description

The bicycle lock lock core

Affiliated technical field

The utility model relates to a kind of bicycle lock lock core.

Background technology

Traditional bicycle lock 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 ordinary bicycle lock pin structure design, theftproof performance is weak, the not good problem of feel of operation, the utility model provides a kind of bicycle lock lock core, the reliability height that compact conformation, the theftproof performance of this bicycle lock lock core is strong, fault 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, lock core shaft's overcoat is a cylindrical shape, the relative pellet shot from a slingshot hole, center of offering in lock core shaft's overcoat and the lock core shaft, central spring is installed in the pellet shot from a slingshot hole successively in the center, last center pellet shot from a slingshot and following center pellet shot from a slingshot, in the lock core shaft of the key hole axis sidepiece of lock core shaft, special-shaped pellet shot from a slingshot hole is set, one side in abnormity pellet shot from a slingshot hole is communicated with key hole, assembling spring and special-shaped pellet shot from a slingshot in the abnormity pellet shot from a slingshot hole, one side of abnormity pellet shot from a slingshot forms projection and gives prominence in key hole, on the opposite side of abnormity pellet shot from a slingshot and the inwall of relative lock core shaft's overcoat groove is set respectively, offer through hole in the lock core shaft relative with groove, the sliding lock spare of installing contact groove and groove is provided with back-moving spring between sliding lock spare two ends and the lock core shaft in the through hole.

The pellet shot from a slingshot hole, center that puts outside the lock core shaft is a through hole, and its outboard end is by the block sealing, and the whole outline curve of the outline curve of block and lock core shaft's overcoat matches, and both join and form the annulus of a sealing.

Last center pellet shot from a slingshot is a circular groove shape, and following center pellet shot from a slingshot is conical, and an end of central spring leans on block, and the other end is pressed against in the circular groove of center pellet shot from a slingshot.

Pellet shot from a slingshot hole, center and the dislocation of special-shaped pellet shot from a slingshot hole vertical distribution are arranged.

The utility model is by above-mentioned specific design, adopts the double code mode of special-shaped pellet shot from a slingshot and common spring to improve the antitheft anti-performance of dialling of bicycle lock lock core greatly, has compact conformation, fault rate is low, switchings 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 a decomposition texture schematic diagram of the present utility model.

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, lock core shaft's overcoat 1 is a cylindrical shape, columnar design makes it be particularly suitable for using in bicycle lock, the relative pellet shot from a slingshot hole, center 12 of offering in lock core shaft's overcoat 1 and the lock core shaft 2, install central spring 13 successively in the pellet shot from a slingshot hole, center 12, last center pellet shot from a slingshot 14 and following center pellet shot from a slingshot 15, pellet shot from a slingshot hole, center 12 on lock core shaft's overcoat 1 is a through hole, its outboard end is by block 17 sealings, the outline curve of block 17 and the whole outline curve of lock core shaft's overcoat 1 match, both join and form the annulus of a sealing, last center pellet shot from a slingshot 14 is a circular groove shape, following center pellet shot from a slingshot 15 is conical, and an end of central spring 13 leans on block 17, and the other end is pressed against in the circular groove of center pellet shot from a slingshot 14.In the lock core shaft 2 of the key hole 3 axis sidepieces of lock core shaft 2, special-shaped pellet shot from a slingshot hole 4 is set, abnormity pellet shot from a slingshot hole 4 and the dislocation of pellet shot from a slingshot hole, center 12 vertical distribution are arranged, one side in abnormity pellet shot from a slingshot hole 4 is communicated with key hole 3, assembling spring 5 and special-shaped pellet shot from a slingshot 6 in the abnormity pellet shot from a slingshot hole 4, one side of abnormity pellet shot from a slingshot 6 forms projection 7 and gives prominence in key hole 3, on the opposite side of abnormity pellet shot from a slingshot 6 and the inwall of relative lock core shaft's overcoat 1 groove 8 is set respectively, groove 9, with groove 8, offer through hole 10 in the relative lock core shaft 2 of groove 9, the sliding lock spare 11 of installing contact groove 8 and groove 9 is provided with back-moving spring 16 between sliding lock spare 11 two ends and the lock core shaft 2 in the through hole 10.When unblanking, insert key, the key moving center pellet shot from a slingshot 15 down of pushing tow that makes progress, and make by last center pellet shot from a slingshot 14 and spacingly to compress at the circular groove of last center pellet shot from a slingshot 14 and the central spring 13 of blocking a shot between 17; Last center pellet shot from a slingshot 14, mating face that following center pellet shot from a slingshot is 15 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 7 of special-shaped pellet shot from a slingshot 6 one sides simultaneously and overcomes spring 5 slides each special-shaped pellet shot from a slingshot 6, the groove 8 of abnormity pellet shot from a slingshot 6 opposite sides aligns with groove 9 slippages on lock core shaft overcoat 1 inwall relatively, when key will drive lock core shaft 2 and rotates together, one end of the transition face roof pressure sliding lock spare 11 of groove 9 and compress sliding lock spare 11 and lock core shaft 2 between back-moving spring 16, the other end of sliding lock spare 11 is pushed groove 8 on special-shaped pellet shot from a slingshot 6 sidewalls, sliding lock spare 11 can be rotated together along with lock core shaft 2, reach the purpose of unblanking after key is rotated further and puts in place.When the backward rotation key puts in place, groove 8 and the groove 9 on lock core shaft's overcoat 1 inwall on abnormity pellet shot from a slingshot 6 sidewalls are relative, back-moving spring 16 discharges that an end that resets sliding lock spare 11 pushes away groove 8, the other end enters groove 9, after extracting key, last center pellet shot from a slingshot 14, center pellet shot from a slingshot 15 and each special-shaped pellet shot from a slingshot 6 slippages dislocation down, the lock core locking.

Claims (4)

1, a kind of bicycle lock 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 lock core shaft's overcoat (1) is cylindrical shape, the relative pellet shot from a slingshot hole, center (12) of offering in lock core shaft's overcoat (1) and the lock core shaft (2), install central spring (13) in the pellet shot from a slingshot hole, center (12) successively, last center pellet shot from a slingshot (14) and following center pellet shot from a slingshot (15), in the lock core shaft (2) of key hole (3) the axis sidepiece of lock core shaft (2), special-shaped pellet shot from a slingshot hole (4) is set, one side in abnormity pellet shot from a slingshot hole (4) is communicated with key hole (3), assembling spring (5) and special-shaped pellet shot from a slingshot (6) in the abnormity pellet shot from a slingshot hole (4), one side of abnormity pellet shot from a slingshot (6) forms projection (7) and gives prominence in key hole (3), on the opposite side of abnormity pellet shot from a slingshot (6) and the inwall of relative lock core shaft's overcoat (1) groove (8) is set respectively, groove (9), with groove (8), offer through hole (10) in the relative lock core shaft (2) of groove (9), the sliding lock spare (11) of installing contact groove (8) and groove (9) is provided with back-moving spring (16) between sliding lock spare (11) two ends and the lock core shaft (2) in the through hole (10).

2, bicycle lock lock core according to claim 1, it is characterized in that the pellet shot from a slingshot hole, center (12) on lock core shaft's overcoat (1) is a through hole, its outboard end is by block (17) sealing, the outline curve of block (17) and the whole outline curve of lock core shaft's overcoat (1) match, and both join and form the annulus of a sealing.

3, bicycle lock lock core according to claim 2, it is characterized in that center pellet shot from a slingshot (14) is circular groove shape, following center pellet shot from a slingshot (15) is conical, and an end of central spring (13) leans on block (17), and the other end is pressed against in the circular groove of center pellet shot from a slingshot (14).

4,, it is characterized in that pellet shot from a slingshot hole, center (12) and special-shaped pellet shot from a slingshot hole (4) vertical distribution dislocation arrangement according to claim 1 or 2 or 3 described bicycle lock lock cores.

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