CN2403659Y - Hidden antitheft lock for bicycle - Google Patents

Abstract

The utility model relates to a concealed theft-proof lock for a bicycle. The problem that the bicycle is stolen almost makes every person puzzled, and the problem can not be fundamentally solved by various theft-proof locks for bicycles in a bicycle lock market at present. The utility model completely omits a traditional bicycle locking mode and a bicycle lock structure, adopts the bicycle locking mode that a front fork is locked without locking bicycle wheels, and adopts the bicycle lock structure that a lock rod is not exposed outside; accordingly, a theft can not cut off the lock rod and can not push the bicycle, the bicycle is difficult to be carried, and accordingly, the theft-proof purpose is achieved. The utility model has the characteristics of simple installation, more convenient bicycle lock locking and unlocking and low cost, and a bicycle body can not be damaged; the utility model is suitable for various new and old bicycles.

Description

The bicycle hidden anti-theft lock

The utility model belongs to the bicycle lock technical field.Be by the locking front fork, make the front fork (comprising front-wheel) can not deflection, a kind of lock device that locking bar can be stashed again.

The stolen problem of bicycle almost is stranded and is being scratched each cyclist.And known various anti-theft lock for bicycle all can not fundamentally address this problem at present.Reason is that existing bicycle lock all is the Vehicle lock structure of the direct lock wheel of employing.This just occurs two weak links inevitably: the one, and locking bar exposes, and easily stolen car human steel bar is cut pinch off; The 2nd, behind the locking trailing wheel, the cracksman only needs a hand shift handlebar, and another hand (or by the hook on the belt between waist) is lifted from ground with trailing wheel, just can easily car be carried out.If front and rear wheel locks simultaneously, and the lock front-wheel may be cable-type padlock or chain lock only, and these two kinds of locks are all very easily by pinch off, and once locks two locks and can make the cyclist feel extremely inconvenient.

The purpose of this utility model is to overcome the shortcoming on traditional bicycle lock structure and the lock car mode, can easily amesiality front fork be fixed up and provide a kind of, and it can't be rotated, and the bicycle hidden anti-theft lock that locking bar does not expose.

The technical solution of the utility model is the original front fork locknut of front fork locknut replacement with a hole with lock, and the part of formation lock, another part of lock is that lock body then is fixed near pipe place before the vehicle frame, when stretching out in the locking bar self-locking body and enter the front fork locknut in hole with lock, front fork promptly is fixed.This hour locking lever is hidden in the front fork locknut in lock body and hole with lock.

The utility model is owing to abandoned traditional bicycle lock structure and lock car mode, and directly with amesiality front fork locking, although front and rear wheel is not all locked, car can only be turn-taked in the original place, can't carry out; Moreover, then hide wherein owing to only leave micro gap, the locking bar of 1 millimeter of less than between the front fork locknut in lock body and hole with lock, make cracksman's steel bar cut and can't put to good use.In addition, the tightening screw of lock body adopts special-purpose single rotation direction (promptly can only precession, can not withdraw from) screw, and the cracksman can't be dismantled lock.Cracksman's one's last shift is that car is lifted with hands away, and is well-known, if car will be lifted with hands, must hold handlebar by left hand, and the right hand is caught square steel tube under the vehicle frame, and a seat stool front end falls piggyback, shoulders car people's head and chest and is in space between handlebar and the seat stool.But lock car mode of the present utility model is that front fork (comprising front-wheel) is locked front fork after amesiality again, therefore the left and right sides handlebar after the locking is substantially aligned with the seat stool, one sidecar is near the seat stool, thereby occupied the space between seat stool and the handlebar, makes the cracksman be difficult to shouldering car and walks.

Accompanying drawing is the constructional drawing of bicycle hidden anti-theft lock.Its member has the front fork locknut in (1) lock body, (2) locking bar, (3) single rotation direction tightening screw, (4) hole with lock.Wherein lock body is on the steel pipe near pipe before the vehicle frame, and the front fork locknut is positioned at the front fork upper end, becomes the part of bicycle hidden anti-theft lock, and when the locking bar head stretched into the front fork locknut in hole with lock, front fork was promptly locked, thereby lost rotating function; When the locking bar head withdrawed from the front fork locknut in hole with lock, front fork promptly recovered normal rotating function.

Embodiment:

Earlier lock body shown in the drawings is fixed on the steel pipe near pipe place before the vehicle frame, takes off handlebar then,, handlebar is loaded onto got final product again with the original front fork locknut of front fork locknut replacement in hole with lock.During the lock car, allow bicycle front fork (comprising front-wheel) amesiality earlier, lockhole and locking bar head are aligned, promote the afterbody of locking bar then with finger, make the locking bar head enter lockhole, extract key at last out and get final product.When unblanking, key is inserted the keyhole of lock body and changes an angle, the locking bar head promptly withdraws from lockhole automatically, bounces back in the lock body, and front fork promptly recovers rotating function.

Claims (3)

1. bicycle hidden anti-theft lock, front fork locknut (4) by lock body (1), locking bar (2), single rotation direction tightening screw (3) and hole with lock constitutes, it is characterized in that the front fork locknut in hole with lock becomes the part of bicycle hidden anti-theft lock, locking bar is among the lock body, when lock is in the lock state, locking bar head then self-locking body stretches out, and enters in the front fork locknut in hole with lock.

2. bicycle hidden anti-theft lock according to claim 1, it is characterized in that front fork is locked after, locking bar promptly is hidden in the front fork locknut in lock body and hole with lock.

3. bicycle hidden anti-theft lock according to claim 1, the lockhole that it is characterized in that the front fork locknut in hole with lock is a blind hole.