CN2590836Y

CN2590836Y - Anti burglary device for bicycle

Info

Publication number: CN2590836Y
Application number: CN 02284200
Authority: CN
Inventors: 陈奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-15
Filing date: 2002-11-15
Publication date: 2003-12-10
Anticipated expiration: 2012-11-15

Abstract

The utility model relates to an anti-burglary device for a bicycle. The anti-burglary device for a bicycle is mainly composed of a shaft lock and a shaft sleeve, wherein, the shaft lock is positioned in the shaft sleeve. Both ends of the shaft lock are fixedly connected to a wheel bracket. The utility model is characterized in that a positioning groove (9) is arranged in the shaft sleeve (5). When a stop block (6) on the shaft lock (3) is locked, the stop block is positioned in the positioning groove (9). The end of the shaft lock (3) is provided with a key jack (4). The utility model combines the anti-burglary device and a bicycle shaft and the shaft sleeve into a whole body. Because a bar-shaped lock is regarded as a shaft piece which is combined with the bicycle into a whole body, the combination between a shaft and the shaft sleeve is destructed if the bicycle is stolen by means of lock destruction. Finally, the whole bicycle is destructed.

Description

Theft-proof device for bicycle

Technical field

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

Background technology

At present, bicycle theft-prevention pins bicycle with mechanical lock mostly, promptly adds an anti-joyride device (mechanical lock) to bicycle, and the thief breaks mechanical lock and bicycle is just damaged and can steal bicycle.

Summary of the invention

The purpose of this utility model is to provide a kind of theft-proof device for bicycle, and its anti-joyride device and axle for bicycle, axle sleeve are combined as a whole.

To achieve these goals, the technical solution of the utility model is: theft-proof device for bicycle, it mainly is made up of shaft lock, axle sleeve, shaft lock is positioned at axle sleeve, captive joint with wheel stand in the shaft lock two ends, it is characterized in that being provided with in the axle sleeve 5 positioning groove 9, the block 6 on the shaft lock 3 is positioned at positioning groove 9 when locking, and shaft lock 3 ends have key hole 4.

Described shaft lock 3 two ends have key hole 4.

Because shaft lock is combined together as axle spare and bicycle, and its anti-joyride device is a component part of bicycle self, if steal car, will certainly destroy spool and the cooperating of axle sleeve with the way of destroying lock, finally cause the destruction of whole bicycle.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is that Fig. 1 is along A-A bobbin lock cutaway view

Fig. 3 is the utility model axle sleeve structure scheme drawing

Wherein 1-vehicle wheel spoke, 2-wheel stand, 3-shaft lock, 4-key hole, 5-axle sleeve, 6-block, 7-driving device, 8-bullet bullet, 9-positioning groove.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, theft-proof device for bicycle, it mainly is made up of shaft lock, axle sleeve, shaft lock is positioned at axle sleeve, captive joint with wheel stand in the shaft lock two ends, it is characterized in that being provided with in the axle sleeve 5 positioning groove 9, the block 6 on the shaft lock 3 is positioned at positioning groove 9 when locking, and shaft lock 3 ends have key hole 4.

Described shaft lock 3 two ends have key hole 4.

One has four axles on bicycle, i.e. front wheel spindle, hind axle, middle part pedal shaft and steering wheel shaft.If the rotation of above any one or two axles can be controlled, then just can realize control to whole bicycle.

Shaft lock is that mechanical lock is made a shape.In conjunction with present a kind of bar-shaped lock, it is set to above any one or two axle places of bicycle as axle spare, to realize control to cycle racing.

When key inserts from key hole 4, during twisting locking, lock body is because inner transmission meeting makes 4 blocks of lock body that the trend of jack-up be arranged, lock body rotates in lock tube, when block broke away from the restriction of arc a, block jack-up was along with lock body is rotated further in lock tube, block will be withstood and can not be rotated further by the C place, has realized the locking step of bicycle lock this moment.

When key inserts from key hole 4, when twisting was unblanked, lock body was because inner transmission retracts original position with 4 blocks of lock body, and lock body just can rotate arbitrarily in lock tube like this, has realized the purpose of unblanking at this moment.

In addition, this kind lock can also be widely applied to vehicles such as three-wheel vehicle, motor bike.

Claims

1, theft-proof device for bicycle, it mainly is made up of shaft lock, axle sleeve, shaft lock is positioned at axle sleeve, captive joint with wheel stand in the shaft lock two ends, it is characterized in that being provided with in the axle sleeve (5) positioning groove (9), block (6) on the shaft lock (3) is positioned at positioning groove (9) when locking, shaft lock (3) end has key hole (4).

2, theft-proof device for bicycle according to claim 1 is characterized in that described shaft lock (3) two ends have key hole (4).