CN1040648A - A kind of antitheft bicycle lock - Google Patents

Abstract

A kind of antitheft bicycle lock.It and prior art bicycle lock compare: material therefor and structure are roughly the same, and process equipment and production assembly technology are basic identical; The present invention increases simple and reliable safeties---a slice lock and safety groove of increase.After the lock shell is raised, unless destroy whole lock body, otherwise, lock can not be opened.

Description

A kind of antitheft bicycle lock

The invention belongs to the bicycle lock of commodity.

Bicycle all disposes lock.The prior art bicycle lock exists easily to be pried open, and causes spacer out of control, the shortcoming that bicycle is stolen.

At above-mentioned shortcoming, the invention provides a kind of burglary insurance lock.Its technical characterictic is to increase a kind of safeties in lock, and these safeties are made up of the safety groove 2 that is fastened on the lock 5 on the lock body 4 and lock on the car post 1.Its outstanding advantage is a pick-proof and anti-theft.

Accompanying drawing 1a and accompanying drawing 1b are the outline drawings of lock, and Fig. 2 is the sectional view of insurance part.

The working condition of safeties is as follows: when bicycle is lockable; Lock car post 1 sheet 6 location that are positioned; Rotate the key on keyhole 3 still, lock body 4 rotates, and lock 5 is changed in the safety groove of locking on the car post 2.Lock is not had good positioning in safety groove, and key just can't be taken down.So far, lock car post adds that again lock tacks except the spacer location.Lock is to be fastened on the lock body, and spacer 6 hides in the above, is difficult for destroyed.

When unblanking, insert key, rotational lock.Except that spacer was opened, the lock that is fastened on the lock body also and then rotated.Leave the safety groove (seeing Fig. 2 direction of arrow) on the lock car post, lock promptly is opened.

Spacer with in the prior art roughly the same.System is fixed on the lock body.

The method that lock is fastened on the lock body has multiple: for example circlip, screw thread, key, welding etc.Thick about 3 millimeter of lock, it enters insure about 10 millimeter of length in the groove of lock car post.Lock is reined in material with heavily fortified point, and for example aluminium alloys etc. is made.The lock total length can be regulated according to various different bicycle locks with rotational angle.

The present invention compares with the prior art bicycle lock: material therefor and structure are roughly the same, and process equipment and production assembly technology are basic identical. Only increase a slice lock and established a groove (safety groove) newly at lock car post. Increase cost seldom, easy to use and reliable. Outstanding advantages of the present invention is after the lock shell is raised, because the effect of safeties, unless destroy whole lock body. Otherwise lock is can not be opened, and has anti-theft function, has economic benefit and social benefit.

The present invention is applicable to various bicycle locks.

Claims (1)

1. The invention belongs to the antitheft bicycle lock of commodity.Safeties that can be antitheft on existing lock, have been set up.The technical characterictic of these safeties is fastened on the lock body by a slice, and the lock that is covered in by original spacer is formed with a safety groove on the lock car post above.