CN2303769Y

CN2303769Y - Anti-theft device for bicycle

Info

Publication number: CN2303769Y
Application number: CN 97218000
Authority: CN
Inventors: 高中旗
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-02
Filing date: 1997-06-02
Publication date: 1999-01-13
Anticipated expiration: 2007-06-02

Abstract

The utility model relates to an anti-theft device for bicycles. The utility model is that an anti-theft lock is welded between two frame covers and is arranged between an upper beam and a lower beam; a lock tongue is aligned to a blind hole of an upright post of a handle bar; a handle bar can be fixed in an inclined shape. The utility model can effective protect a lock body from being directly pried and safety is high.

Description

Theft-proof device for bicycle

The utility model relates to a kind of theft-proof device for bicycle.

At present, ordinary bicycle lock is positioned at trailing wheel, and the car stealer is picking lock or lift trailing wheel car is pushed away away directly, thereby existing lock is not fool proof.

The purpose of this utility model is to overcome the deficiencies in the prior art, thereby a kind of theft-proof device for bicycle of avoiding lock body directly to be prized is provided.

The purpose of this utility model realizes in the following way:

This device is made up of upper guard board (1) and following backplate (2), wherein: upper guard board (1) has the semicircle bending around leaning on the crossbeam (3) of handlebar one end, following backplate (2) also has half bending on lower inclined beam (4), and it is coupled by rivet (5), backplate is riveted in both sides up and down, is welded with anti-theft column lock (6) between two backplates, and corresponding key hole has through hole (7) on the backplate, also have the blind hole of inserting for dead bolt (8) on the handlebar column, the angle of blind hole axle center and handlebar is 30～60 degree.

The utlity model has following advantage:

After locking this device, handlebar and Che Liang are an angle, and the car stealer can't push away away car.Because the protection of two backplates can't directly prize lock body, thereby safety performance improves greatly.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model constructional drawing

Fig. 2 is the utility model cutaway view

In the drawings: (1) upper guard board; (2) backplate under; (3) entablatrance (4) lower inclined beam; (5) rivet; (6) anti-theft column lock; (7) through hole; (8) blind hole.

Anti-theft column lock can adopt a spring lock, and dead bolt should be oblong, saves the lock body knob, is welded on the backplate inboard, and key hole is aimed at the through hole (7) of another backplate, and the utility model preferably is used better effects if with common trailing wheel lock.

Claims

1, a kind of theft-proof device for bicycle, form by upper guard board (1) and following backplate (2), it is characterized in that: upper guard board (1) has the semicircle bending around leaning on the crossbeam (3) of handlebar one end, following backplate (2) also has half bending on lower inclined beam (4), and it is coupled by rivet (5), backplate is riveted in both sides up and down, be welded with anti-theft column lock (6) between two backplates, corresponding key hole has through hole (7) on the backplate, also have the blind hole of inserting for dead bolt (8) on the handlebar column, the angle of blind hole axle center and handlebar is 30～60 degree.