CN2129322Y

CN2129322Y - Anti-prying lock for bicycle

Info

Publication number: CN2129322Y
Application number: CN 92213867
Authority: CN
Inventors: 王银功
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-09
Filing date: 1992-05-09
Publication date: 1993-04-07
Anticipated expiration: 2002-05-09

Abstract

The utility model relates to an anti-prizing lock for a bicycle, which is composed of a lock head arranged at the lower part of the front pipe of the bicycle and an annular lock head arranged on a front fork, the lock head arranged on the front pipe controls a lock bolt through a key, and the lock bolt controls the lock bolt of the annular lock head. The circular lock hole (11) of the annular lock head is corresponding to the lock bolt (4), and the annular lock head (6) is composed of an annular lock bolt (8), a bolt handle (7), a tension spring (9) and a rotation stopping block (5). The utility model can not be disassembled, prized, and smashed, and the anti-theft purpose for the bicycle is finally achieved.

Description

Anti-prying lock for bicycle

The utility model relates to a kind of Bicycle Anti-Picklock.

Existing Bicycle Anti-Picklock kind is more, but shortcoming is more in actual use.As the lock body insufficient strength, still prized, pounded easily; Be contained in the inserted-link type theftproof lock at car front-wheel position, after long-term the use, often make the handlebar rotation malfunctioning because of wearing and tearing; And shaft was longer when this inserted link was locked in the insertion front-wheel, as long as firmly stubborn just flexible, made the front-wheel lockout failure.This is that present Bicycle Anti-Picklock is difficult for one of reason of promoting.

The purpose of this utility model provides a kind ofly can't prize again, pound by not dismantling behind the dress, also can not damage the safety anti-theft lock of part in addition of vehicle body voluntarily.

The utility model is to implement like this:

One secondary Bicycle Anti-Picklock is fixed on tapered end and on the bicycle front tube by one and is fixed on that annular tapered end on the bicycle front-wheel forms.

Preceding pipe tapered end is held tapered end and climbing tightly on preceding pipe with self-locking screw, and this self-locking screw can only be tight, can not be loose, can not remove tapered end in the mode of unloading screw again after therefore loading onto, unload and can only use the way of sawing.This tapered end is processed by forging type, interior dress cylinder lock and locking bolt.When locking with lock key, extended about 1 centimeter of locking bolt unclamps without lock key, and locking bolt is impossible withdraw, and the diameter of this locking bolt is about 8 millimeter, and front end has cannelure, and wanting to twist curved this kind lock bolt rod can be not easy.Fix an annular tapered end on the front fork of front-wheel, its shape is similar to the lock ring that commercially available ordinary bicycle is locked, but the middle part of this annular tapered end has a round keyhole, and this circle lockhole stretches into for the locking bolt of preceding pipe tapered end.At preceding pipe locking bolt to the circle lockhole when stretching into, promote the handle of ring lock locking bolt simultaneously, annular locking bolt is moved down, the breach that one trough of belt is arranged on the annular locking bolt is just in time fastened the annular notches of the inserting end of preceding pipe locking bolt, this moment, the tightening latch wheel rim that passed the bicycle front-wheel of annular locking bolt inserted another patchhole of annular locking bolt, i.e. locking.Because preceding pipe tapered end is fixed on the bicycle front tube lower right side, and annular tapered end is fixed on the front fork, so when locking, the bicycle front-wheel deflection left side.At this moment this bicycle can not push away away, can only shoulder piggyback, and has no other way.Because of tapered end can not unload, wanting to walk can only sawed-off two locking bolt, finally reaches antitheft purpose.Certainly, can only unclamp tapered end with the way of saw equally if the car owner loses key, the lock of being sawed can not restore, and can only scrap.

To do a detailed elaboration to the utility model with reference to the accompanying drawings below.

Accompanying drawing 1 be this Bicycle Anti-Picklock by the dress schematic diagram;

Accompanying drawing 2 is preceding pipe lock head structure schematic diagrames of this Bicycle Anti-Picklock;

Accompanying drawing 3 is preceding pipe tapered end three-view diagrams of this Bicycle Anti-Picklock;

Accompanying drawing 4 is preceding pipe tapered end climbing schematic diagrames of this Bicycle Anti-Picklock;

Accompanying drawing 5 is structural representations of the Ring lock for bicycle of this Bicycle Anti-Picklock.

A secondary Bicycle Anti-Picklock with reference to the accompanying drawings is made up of with an annular tapered end (6) a preceding pipe tapered end (1).Preceding pipe tapered end (1) is made of lock housing (2), cylinder lock (3), locking bolt (4), the back side of lock housing (2) is the band arc, can be adjacent in the following threeway of the lower-left end of before cycle frame, managing and bicycle front tube, therefore design a three-jaw climbing (12) and fix with three self-locking screws with lock housing (2).The key switch of the available cylinder lock of its locking bolt (4) (3), locking bolt stretches out during the pass, locking bolt indentation when opening.About 8 millimeter of locking bolt diameter, extended part is about about 1 centimeter, and a cannelure is arranged at the top of external part.Annular tapered end (6) have one with the similar lock ring of former bicycle lock ring, the lock ring top have establish an annular locking bolt (8) in a round keyhole (11) and spline piece (5), the lock ring and be set in handle (7) on the locking bolt, open notch (10) on locking bolt, extension spring (9) composition of pulling locking bolt.When before closing, managing tapered end with key, the locking bolt (4) of preceding pipe locking bolt should stretch in the round keyhole (11), use the bolt handle (7) of hand propelled annular tapered end simultaneously, to locking bolt notch (10) and locking bolt (4) when being interlocked, the annular locking bolt has inserted among the relative keyhole of annular tapered end, then finishes lock program.Be fixed on the lower-left side of preceding pipe at this moment because of preceding pipe tapered end, and annular tapered end is to be contained on the front fork, so when locking, the front-wheel of car just is partial to the right side.When before opening, managing tapered end, the locking bolt withdrawal, annular locking bolt makes annular locking bolt homing because of the effect of extension spring (9), and this moment, front-wheel was free to rotate again.Spline piece (5) mainly is to make annular tapered end be close to front fork, prevents its rotation.

Claims

1, a kind of Bicycle Anti-Picklock is made of tapered end and locking bolt, it is characterized in that what this lock was made up of preceding pipe tapered end (1) and annular tapered end (6); Before pipe tapered end (1) locking bolt (4) that has notch (10) is arranged, the available key switch of locking bolt (4) and flexible, the round keyhole of annular tapered end (11) should be aimed at locking bolt (4); Annular tapered end (6) is made of an annular locking bolt (8), bolt handle (7), extension spring (9) and spline piece (5), an end of annular locking bolt (8) is held in extension spring (9), and the notch of this locking bolt (10) shape just in time matches with the cannelure shape of the external part of locking bolt (4).

2, according to the Bicycle Anti-Picklock of claim 1, the pipe tapered end is fixed on the bicycle front tube by climbing (12) and self-locking screw before it is characterized in that.