CN201661156U

CN201661156U - Lock core of bicycle lock

Info

Publication number: CN201661156U
Application number: CN2009201187448U
Authority: CN
Inventors: 徐钜祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-26
Filing date: 2009-04-26
Publication date: 2010-12-01
Anticipated expiration: 2019-04-26

Abstract

The utility model relates to a lock core of a bicycle lock, which comprises a lock core shaft sleeve and a lock core shaft in the lock core shaft sleeve. The lock core shaft sleeve is cylindrical, a pin tumbler hole is formed on the lock core shaft at the side part of a key slot of the lock core shaft, wherein one side of the pin tumbler hole is communicated with the key slot, a spring and a pin tumbler are respectively assembled in the pin tumbler hole, a lug protruding the key slot is formed on one side of the pin tumbler, grooves are respectively formed on the other side wall of the pin tumbler and on the opposite inner wall of the lock core shaft sleeve, a through hole is formed on the lock core shaft opposite to the groove, a sliding locking piece for connecting the two grooves is loaded in the through hole, and a return spring is arranged among the two ends of the sliding locking piece and the lock core shaft. The utility model overcomes the defects of rough structure, poor anti-theft property and poor hand feel in operation in a conventional bicycle lock core, enhances the anti-theft property and the anti-shifting property through the design, and also has the advantages of compact structure, flexible opening and closing and high reliability.

Description

A kind of lock lock core

Technical field

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

Background technology

Traditional lock lock core, particularly the bicycle lock lock core generally all adopts 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

Common lock lock core structure designs simple and crude in the prior art in order to overcome, theftproof performance is weak, the not good problem of feel of operation, the utility model provides a kind of lock lock core, the reliability height that compact conformation, the theftproof performance of this 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, in the lock core shaft of the key hole axis sidepiece of lock core shaft, the pellet shot from a slingshot hole is set, one side in pellet shot from a slingshot hole is communicated with key hole, assembling spring and pellet shot from a slingshot in the pellet shot from a slingshot hole, one side of pellet shot from a slingshot forms projection and gives prominence in key hole, on the inwall of another sidewall of pellet shot from a slingshot and 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 two grooves is provided with back-moving spring between sliding lock spare two ends and the lock core shaft in the through hole.

Lock core shaft is provided with pellet shot from a slingshot hole, center, and a side in pellet shot from a slingshot hole, center is communicated with key hole, assembly center pellet shot from a slingshot in the pellet shot from a slingshot hole, center, and the center pellet shot from a slingshot becomes stepped, and the upper end of center pellet shot from a slingshot is relative with groove on the lock core shaft outer casing inner wall.

Three grooves on lock core shaft's outer casing inner wall become isosceles triangle to distribute.

The utility model is by above-mentioned specific design, adopts the double code mode of pellet shot from a slingshot and center pellet shot from a slingshot to improve the antitheft anti-performance of dialling of 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 decomposition texture schematic diagram of the present utility model;

Fig. 2 is an assembly structure schematic diagram of the present utility model;

A-A sectional view when Fig. 3 is the rotation of Fig. 2 lock core;

B-B sectional view when Fig. 4 is the rotation of Fig. 2 lock core;

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, 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, one side in pellet shot from a slingshot hole 4 is communicated with key hole 3, assembling spring 5 and pellet shot from a slingshot 6 in the pellet shot from a slingshot hole 4, one side of pellet shot from a slingshot 6 forms projection 7 and gives prominence in key hole 3, on the inwall of the opposite side of pellet shot from a slingshot 6 and 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 12 between sliding lock spare 11 two ends and the lock core shaft 2 in the through hole 10.Lock core shaft 2 is provided with pellet shot from a slingshot hole, center 13, one side in pellet shot from a slingshot hole, center 13 is communicated with key hole 3, assembly center pellet shot from a slingshot 14 in the pellet shot from a slingshot hole,

center

13,14 one-tenth of center pellets shot from a slingshot are stepped, freely be suspended in the pellet shot from a slingshot hole, center 13, its bottom enters key hole 3, and the upper end of center pellet shot from a slingshot 14 is relative with groove 15 on lock core shaft overcoat 1 inwall.Groove 15 on lock core shaft's overcoat 1 inwall distributes with dividing the 9 one-tenth isosceles triangles of groove 8, groove that are located at its both sides.When unblanking, insert key, if key mistake, key can upwards push the upper end of center pellet shot from a slingshot 14 groove 15 on lock core shaft's overcoat 1 inwall, this moment, lock core shaft 2 can not rotate, lock can not be opened, after inserting correct key, the mating face that the upper surface of center pellet shot from a slingshot 14 and lock core shaft 2 and lock core shaft's overcoat are 1 flushes, the resistance that groove on the key two side blocks the projection 7 of pellet shot from a slingshot 6 one sides simultaneously and overcomes spring 5 slides up and down each pellet shot from a slingshot 6, the groove 8 of pellet shot from a slingshot 6 another sidewalls 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 12, the other end of sliding lock spare 11 is pushed groove 8 on 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 9 on groove 8 on pellet shot from a slingshot 6 sidewalls and lock core shaft's overcoat 1 inwall is relative, back-moving spring 12 discharges that an end that resets sliding lock spare 11 pushes away groove 8, the other end enters groove 9, after extracting key, center pellet shot from a slingshot 14 falls, each pellet shot from a slingshot 6 slippages dislocation, the lock core locking.

Claims

1. 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, 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) is set, one side in pellet shot from a slingshot hole (4) is communicated with key hole (3), assembling spring (5) and pellet shot from a slingshot (6) in the pellet shot from a slingshot hole (4), one side of pellet shot from a slingshot (6) forms projection (7) and gives prominence in key hole (3), on the inwall of another sidewall of pellet shot from a slingshot (6) and 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 (12) between sliding lock spare (11) two ends and the lock core shaft (2) in the through hole (10).

2. a kind of lock lock core according to claim 1, it is characterized in that lock core shaft (2) is provided with pellet shot from a slingshot hole, center (13), one side in pellet shot from a slingshot hole, center (13) is communicated with key hole (3), assembly center pellet shot from a slingshot (14) in the pellet shot from a slingshot hole, center (13), it is stepped that center pellet shot from a slingshot (14) becomes, and the upper end of center pellet shot from a slingshot (14) is relative with groove (15) on lock core shaft's overcoat (1) inwall.

3. a kind of lock lock core according to claim 2 is characterized in that the groove (15) on lock core shaft's overcoat (1) inwall becomes isosceles triangle to distribute with dividing the groove (8), the groove (9) that are located at its both sides.