CN2799358Y

CN2799358Y - Theft-proof lock for bicycle

Info

Publication number: CN2799358Y
Application number: CN 200520012926
Authority: CN
Inventors: 桂文欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-30
Filing date: 2005-06-30
Publication date: 2006-07-26
Anticipated expiration: 2015-06-30

Abstract

The utility model discloses a theft-proof lock for a bicycle. The utility model has the essential structure that the utility model comprises a lock core, an inserting rod, a front fork component, a component of a pedal central shaft, a front positioning plate and a rear positioning plate, wherein the lock core and the inserting rod are movably connected and are arranged in a bicycle tripod between the front fork and the pedal central shaft; the front fork component is provided with a front fork positioning hole along a front fork in the axial direction; the component of the pedal central shaft is provided with a positioning hole along the pedal center in the axial direction; the front fork positioning hole, the positioning hole, the front positioning plate and the rear positioning plate are respectively matched with the inserting rod. The utility model can simultaneously lock two movable components of the bicycle and can not be easily pried apart, having the advantages of reasonable structure, easy use and bicycle security improvement.

Description

Anti-theft lock for bicycle

Technical field:

The utility model relates to a kind of anti-theft lock for bicycle, mainly is applicable to the antitheft of bicycle.

Background technology:

The antitheft main dependence lock of bicycle, but lock of the prior art only pins some movable parts of bicycle usually, and outside being exposed to usually, make thief's ratio be easier to go smoothly.

Summary of the invention:

Technical problem to be solved in the utility model is to overcome above shortcomings in the prior art, and a kind of anti-theft lock for bicycle that can pin two movable parts simultaneously and be difficult for prying open is provided.

The technical scheme that the utility model solves the problems of the technologies described above is: a kind of anti-theft lock for bicycle, its architectural feature is to comprise lock core, inserted link, front fork parts, pedal center shaft parts, prelocalization plate and rear position plate, described lock core and inserted link flexibly connect and are installed in the bicycle tripod between front fork and the pedal center shaft, the front fork parts axially are provided with the front fork knock hole along front fork, to being provided with knock hole, front fork knock hole, knock hole, prelocalization plate, rear position plate all mate with inserted link pedal center shaft parts along the pedal center shaft.

Front fork knock hole described in the utility model can be 5, lays respectively at front fork forward front fork parts and the cooresponding position of inserted link when becoming 75 ° of 0 °, left-leaning 30 °, 30 ° of Right deviations, left-leaning 75, Right deviations with frame.

Knock hole described in the utility model can be 4, lay respectively at pedal be in before and after up and down pedal center shaft parts and the cooresponding position of inserted link during four positions.

The utility model can pin two movable bike parts simultaneously and be difficult for prying open, and is rational in infrastructure, easy to use, the safety that has improved bicycle greatly.

Description of drawings:

Fig. 1 is the scheme drawing of the utility model embodiment.

Fig. 2 is the cut-away view of overlooking of the utility model embodiment front fork parts.

Fig. 3 is the cut-away view of the utility model embodiment pedal center shaft parts.

The specific embodiment:

Referring to Fig. 1, Fig. 2, Fig. 3, the utility model embodiment anti-theft lock for bicycle comprises lock core 1, inserted link 2, front fork parts 3, pedal center shaft parts 4, prelocalization plate 5 and rear position plate 6, lock core 1 and inserted link 2 usefulness crankshaft-link rod modes flexibly connect and are installed in the bicycle tripod between front fork and the pedal center shaft, front fork parts 3 are provided with front fork knock hole 7 vertically, pedal center shaft parts 4 are provided with knock hole 8 vertically, front fork knock hole 7, knock hole 8, prelocalization plate 5, rear position plate 6 all mates with inserted link 2, here said coupling comprises size, shape, position and front fork knock hole 7, the length relation of the degree of depth of knock hole 8 and inserted link 2, promptly when key insertion lock core 1 turned to the anti-theft lock for bicycle pinning, inserted link 2 can just in time insert in front fork knock hole 7 and the knock hole 8 and block front fork and pedal center shaft; Turn to anti-theft lock for bicycle when opening when key inserts lock core 1, inserted link 2 can just in time withdraw from front fork knock hole 7 and knock hole 8.

Front fork knock hole 7 among the utility model embodiment is 5, lays respectively at front fork forward front fork parts 3 and inserted link 2 cooresponding positions when becoming 75 ° of 0 °, left-leaning 30 °, 30 ° of Right deviations, left-leaning 75 °, Right deviation with frame.

Knock hole 8 among the utility model embodiment has 4, lay respectively at pedal be in before and after up and down pedal center shaft parts 4 and inserted link 2 cooresponding positions during four positions.

Front fork parts 3 described in the utility model can be the parts of making separately, also can utilize original front fork to do corresponding processing, when independent manufacturing, can add the steel pipe intensive treatment again by the centre, make front fork all can pin at the more multiposition of circumferencial direction.Pedal center shaft parts 4 described in the utility model can be the parts of making separately, also can utilize original pedal center shaft to do corresponding processing, after the certain intensive treatment of process, the position of pinning also is not limited to top said 4, also can be that pedal rod tilts forward and back 45 ° position.All similar conversion all should be thought simple deformation of the present utility model and fall into protection domain of the present utility model.

Claims

1, a kind of anti-theft lock for bicycle, it is characterized in that: comprise lock core, inserted link, front fork parts, pedal center shaft parts, prelocalization plate and rear position plate, described lock core and inserted link flexibly connect and are installed in the bicycle tripod between front fork and the pedal center shaft, the front fork parts axially are provided with the front fork knock hole along front fork, to being provided with knock hole, front fork knock hole, knock hole, prelocalization plate, rear position plate all mate with inserted link pedal center shaft parts along the pedal center shaft.

2, anti-theft lock for bicycle according to claim 1, it is characterized in that: described front fork knock hole is 5, lays respectively at front fork forward front fork parts and the cooresponding position of inserted link when becoming 75 ° of 0 °, left-leaning 30 °, 30 ° of Right deviations, left-leaning 75 °, Right deviation with frame.

3, anti-theft lock for bicycle according to claim 1 is characterized in that: described knock hole is 4, lay respectively at pedal be in before and after up and down pedal center shaft parts and the cooresponding position of inserted link during four positions.