CN2547612Y - Bicycle antitheft lock for steering mechanism - Google Patents

Abstract

The bicycles in our country are all in the bicycle-lock separation form, locks are mounted after bicycles are bought; the mode of locking bicycle is that a rear wheel is locked, but a front wheel and handle bar direction are not locked; objectively, the mode of locking bicycle provides convenience for bicycle thieves. The utility model provides a bicycle antitheft lock for a steering mechanism comprising a lock box which is fixed on the back wall of a front back outer sleeve, a lock core with a lock pin deflector rod which is arranged in the lock box and a lock pin component one end of which is blocked on the lock pin deflector rod. The utility model is characterized in that: two lock pin jacks which are in the same plane are respectively arranged on the back wall of the front fork outer sleeve and the side wall of the front fork shaft tube, the handle bar is vertical to the bicycle frame, the other end of the lock pin is inserted into the lock pin jack of the back wall of the front fork outer sleeve, the lock pin holes of the side wall of the front fork shaft tube and the front fork outer sleeve are dislocated to form a horizontal angle, a horizontal dislocation angle is formed between the handle bar and the bicycle frame, the other end of the lock pin is synchronously inserted into the lock pin jacks of the front fork outer sleeve and the front fork shaft tube. The utility model has the advantages of a simple structure, low cost, hard lock casing and uneasy destruction, and make locking bicycle safe and reliable through locking front wheel and handle bar direction.

Description

The bicycle theft-prevention steering lock

Technical field

The utility model relates to a kind of anti-theft lock for bicycle, definitely says so to relate to a kind ofly to be installed in bicycle frame-front fork outer tube position, to make handlebar and vehicle body tiltedly angledly can pin handlebar and front fork central siphon, to prevent the bicycle theft-prevention steering lock that bicycle is stolen.

Background technology

Current, the stolen problem of bicycle is quite outstanding, and each big and medium-sized cities is particularly general.How antitheft car owner, the problem that manufacturer and public security department are anxious to be solved of having become of bicycle.The bicycle that China produces and sells is at present all carried out car, lock separation, and lock is to install behind the buying car, lock car mode is to adopt the lock trailing wheel, does not lock front-wheel, does not lock the handlebar direction, this provides facility objectively for the car stealer, can ruin the lock back and steal car, and What is more mentions back wheels of vehicle robber car.

Summary of the invention

Goal of the invention of the present utility model is: at present bicycle and lock in the problem that exists aspect the anti-theft technique measure, for manufacturer and user provide a kind of new-type lock car mode of locking front-wheel, lock handlebar direction, both can't picking lock, ruin lock and steal car, also can't carry wheel and steal car.Bicycle theft-prevention steering lock with firm in structure, simple structure, cheap for manufacturing cost, lock car safety, antitheft reliable excellent properties.

Goal of the invention of the present utility model realizes by implementing following technical proposals: a kind of bicycle theft-prevention steering lock, by being fixed on the vehicle frame front end, lock box on the front fork outer tube back wall, the lock core of device in lock box, be fixed on the lock pin driving lever on this lock core, the lock pin assembly that one end is installed on the lock pin driving lever constitutes, it is characterized in that: on vehicle frame front end front fork outer tube back wall and on the front fork central siphon sidewall in this outer tube, a lock pin jack that is on the same horizontal surface respectively is set, when handlebar is vertical with vehicle frame, the other end of lock pin is adorned in the lock pin jack that is inserted on the front fork outer tube back wall, and the lock pin jack on the front fork central siphon sidewall and level angle of the dislocation of the lock pin jack on the front fork outer tube; When handlebar and vehicle frame constituted this horizontal displacement angle, then the other end of lock pin was inserted in the lock pin jack on front fork outer tube and the front fork central siphon with fashionable dress.

Additional technical feature is: the front fork outer tube of lock box and vehicle frame front end manufactures integrative-structure.

Advantage of the present utility model is: 1. because anti-theft column lock is connected on the front fork outer tube of vehicle frame front end, can manufacture integrative-structure, solve the problem that car, lock separate the installation appearance; 2. the vehicle frame lock tube is firm, is difficult for damaging; 3. adopt lock front-wheel, lock handlebar direction, be equipped with rear wheel lock and make bicycle safer; 4. be difficult for the lock reparation, the replacing that damage, and lock is positioned at the showy position of bicycle, all front fork sleeve pipe lockset rings bicycle, all be that public security department implements the good sign checked, be convenient to solve a case.

Description of drawings Fig. 1 is that the antitheft steering lock position view Fig. 2 that is installed on the bicycle is installed in frame-front fork outer tube position to be in antitheft steering lock vertical profile structural representation Fig. 3 of unlocking condition for being installed in front fork outer tube position, the antitheft steering lock vertical profile structural representation Fig. 4 that is in blocking is the cross section structure scheme drawing that is installed in the antitheft steering lock at front fork outer tube position, when solid line sign bicycle front fork central siphon and handlebar are locking-in state among the figure, the constructional drawing of front fork central siphon, handlebar, lockpin hole and steering lock; Dotted line indicates front fork central siphon and handlebar when being free operative condition, the constructional drawing of front fork central siphon, handlebar, lockpin hole and steering lock.Mark among the figure: 1 is the bicycle front fork outer tube, 2 is the bicycle front fork central siphon, and 3 is the lockpin hole on the front fork outer tube, and 4 is lock pin, 5 is the lock pin driving lever, 6 is lock core, and 7 is lock box, and 8 is cross member of frame, 9 is the lockpin hole on the front fork central siphon, 10 is handlebar, and 11 is the bicycle theft-prevention steering lock, and 12 is vehicle frame.

The specific embodiment

The bicycle theft-prevention steering lock, by being fixed on vehicle frame 12 front ends, lock box 7 on front fork outer tube 1 back wall, the lock core 6 of device in lock box, be fixed on the lock pin driving lever 5 on this lock core, lock pin 4 assemblies that one end is installed on the lock pin driving lever constitute, it is characterized in that: on vehicle frame front end front fork outer tube 1 back wall and on front fork central siphon 2 sidewalls in this outer tube, a lock pin jack that is on the same horizontal surface respectively is set, when handlebar 10 and vehicle frame 12 are vertical, the other end of lock pin 4 is adorned in the lock pin jack 3 that is inserted on front fork outer tube 1 back wall, and level angle of 3 dislocation of the lock pin jack on lock pin jack on front fork central siphon 2 sidewalls 9 and the front fork outer tube; With handlebar 10 deflections, when constituting these horizontal displacement angles with vehicle frame 12, the other end of lock pin 4 then is inserted in the lock pin jack 3 and 9 on front fork outer tube 1 and the front fork central siphon 2 with fashionable dress, with handlebar and front-wheel locking, bicycle forfeiture working direction can't be carried out firmly.Bicycle Plant can also make integrative-structure to the front fork outer tube of lock box and vehicle frame front end, and the productive costs increase is very little, and it is convenient not only to lock car, and has more increased the tamper-proof anti-stolen safe reliability of bicycle.Lock is during car, if with handlebar spin with the vehicle frame structure at an angle, the lock pin in the lock box promptly stretches out, and inserts in front fork outer tube and the lock pin jack that the front fork central siphon docks, and lock is lived; When unblanking, lock pin withdraws from the lock pin jack on the front fork central siphon, promptly rotatable handlebar, and go-cart is ridden away.

Claims (2)

1, a kind of bicycle theft-prevention steering lock, by being fixed on vehicle frame (12) front end, lock box (7) on front fork outer tube (1) back wall, the lock core (6) of device in lock box, be fixed on the lock pin driving lever (5) on this lock core, lock pin (4) assembly that one end is installed on the lock pin driving lever constitutes, it is characterized in that: on vehicle frame front end front fork outer tube (1) back wall and on front fork central siphon (2) sidewall in this outer tube, a lock pin jack that is on the same horizontal surface respectively is set, when handlebar (10) is vertical with vehicle frame (12), the other end of lock pin (4) is adorned in the lock pin jack (3) that is inserted on front fork outer tube (1) back wall, and level angle of the dislocation of the lock pin jack (3) on lock pin jack (9) on front fork central siphon (2) sidewall and the front fork outer tube; When handlebar (10) and vehicle frame (12) constituted this horizontal displacement angle, the other end of lock pin (4) then was inserted in the lock pin jack (3) and (9) on front fork outer tube (1) and the front fork central siphon (2) with fashionable dress.

2, according to the described bicycle theft-prevention steering lock of claim 1, it is characterized in that: lock box (7) manufactures integrative-structure with the front fork outer tube (1) of vehicle frame (12) front end.