Lock for locking centre shaft of bicycle

Abstract

The invention discloses a lock for locking the medial axis of the bicycle, which can effectively solve the problems that the lock is arranged on the appearance of the bicycle for preventing theft and the bicycle is easily stolen by a thief, in addition, the bicycle can still be normally used and hard to be found out as a stolen bicycle. In the invention, the part of the medial shaft between the two blocking parts in the existing bicycle is thickened, and a plurality of groove teeth are arranged around the thickened part in equal distances. A hole is drilled in the place where a sleeve is corresponding to the groove teeth and the other accessories like a bolt are assembled in the steel tube of the bicycle frame that is connected with a shaft sleeve. When the bicycle is locked, strip teeth are driven by gears to move downward under the force of the key turned by hands. The bolt passes through the shaft sleeve in the steel tube, is inserted into the groove teeth and locks a medial shaft, therefore, the medial shaft can not move or be disassembled, and the bicycle then loses power. Even if the bicycle is stolen by a thief, the bicycle can not be used unless the lock is unlocked. The only way for the thief to open the lock is that the steel tube is sawed by a saw and the bicycle can be reused when the steel tube is welded back; therefore, a remarkable mark is left on the bicycle. Others can easily find that the bicycle is a stolen bicycle, thus stopping the bicycle to be stolen by thieves.

Description

Technical field: [0001] The invention relates to anti-theft locks for various bicycles, in particular to a lock for locking the central axle of a bicycle. Background technique: [0002] At present, known bicycles, pedal tricycles, pedal electric bicycles, two people, three people riding bicycles, etc., are all fixed locks installed on the outside of the car or locked with wire locks to prevent theft, which all belong to open locks. , easy to be stolen car by the thief picks the lock, also does not leave trace on the car, this car can also be used as usual and is not easy to be found to be stolen car by others, and this has caused very big loss to social order and people's property. Invention content: [0003] In order to solve the shortcomings of the current anti-theft technologies for various bicycles described in the background technology, the present invention provides a lock for locking the central axis of bicycles, which can effectively prevent thieves from stealing c...

AI Technical Summary

Problems solved by technology

[0002] At present, known bicycles, pedal tricycles, pedal electric bicycles, two people, three people riding bicycles, etc., are all fixed locks installed on the outside of the car or locked with wire locks to prevent theft, which all belong to open locks. It is easy for thieves to pick the lock and steal the car. There is no trace left on the car. The car can still be used as usual and it is not easy for others to find that it is a stolen car. This has caused great losses to social security and people's property.

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