CN2285233Y

CN2285233Y - Theft-proof device for bicycle

Info

Publication number: CN2285233Y
Application number: CN 96219545
Authority: CN
Inventors: 袁季平
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-09
Filing date: 1996-10-09
Publication date: 1998-07-01
Anticipated expiration: 2006-10-09

Abstract

The utility model relates to an anti-theft device which is mainly used for bicycles and human-power tricycles and is composed of a lock and a barrier strip. A hole is respectively arranged on the barrier strip, a bicycle shaft and a shaft sleeve; a lock body is across arranged on the back side of the shaft sleeve and fasteners of screw bolts are used for anchoring. Locking is reliable.

Description

Theft-proof device for bicycle

The utility model relates to a kind of row from the car anti-joyride device, is mainly used in bicycle and manual tricycle.

Used locks such as existing bicycle and three-wheel vehicle mainly are to be loaded on the after-frame of seat cushion bottom, and by curved locking bar, to advance lock fixed around passing wheel rim to other side from trailing wheel one side.Its weak point is: antitheft unreliable, car stealer's working pressure pincers or hacksaw etc. just can damaged locks in very short time, and car is ridden away.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art and a kind of locking failure-free theft-proof device for bicycle is provided.

The purpose of this utility model can reach by following measure: the utility model is made up of lock and blend stop, and porose on blend stop, axletree and the axle sleeve, lock body straddles the bolt fastener anchoring behind axle sleeve.

The drawing of accompanying drawing is described as follows:

Fig. 1 is locked in constructional drawing on the axletree for adopting the utility model with axle sleeve;

Fig. 2 is the part sectional view of A behind half-twist of Fig. 1;

Fig. 3 unblanks and with the constructional drawing of locking bolt on the axle sleeve;

Fig. 4 is the part sectional view of B behind half-twist of Fig. 3;

Fig. 5 be the C of Fig. 4 to partial view, only express axial end and straight flute.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing: the utility model is a kind of bicycle rear and three-wheel vehicle front-wheel or trailing wheel of being used for, the device that its axletree and axle sleeve are locked.Referring to Fig. 1 and Fig. 2, lock 8 is prior aries, mainly form by lock body, locking bar and the key of core with lock, on the axle sleeve 2 of axletree 1 that has car now and wheel hub 9, process the hole that penetrates for locking bar 3, can move axially in order to make between axletree and the axle sleeve, present embodiment processes slotted hole 4 and sees Fig. 4 on axletree.During use, the U-lag at lock body 5 middle parts is straddled on axle sleeve 2.And make locking bar aiming axis trepanning 7 and axletree hole 4 with reference to figure 4, and the key 6 that will stretch into keyhole simultaneously rotates to position shown in the figure, and locking bar stretches in hole 7 and the hole 4 successively.Axletree is motionless in the time of by bike, and axle sleeve rotates around axletree.When axle sleeve was locked in axletree by locking bar, car was locked, extracted key then, finished the lock car.To enter in spoke 15 (see figure 2)s operation that lock is locked and unblank more convenient in order to stretch out one's hand, and the timer-operated lock body of lock position pressed close to a side of wheel hub 9 and seen Fig. 2.

Fig. 3 and Fig. 4 represent that lock is unlocked and the anchoring state.Key is stretched into keyhole and turn to the locking bar withdrawal, lock is unlocked.Then lock body is removed together with locking bar, for the lock body position after removing is fixed, the unlikely longitudinal travel (retracting and stretch into again in hole 7 and the hole 4 as locking bar will bringing on a disaster property consequence) that outside axle sleeve, produces, at the intrinsic blend stop 10 of axle sleeve 2 outside welds, radial hole 11 and 12 are arranged on the blend stop 10, there is protruding block 13 the blend stop outer end, spacing usefulness when lock bodies moves apart latched position.After lock body put in place, locking bar stretched in the hole 12 under the effect of lock inner spring screen resilience, and like this, lock body is locked on the blend stop 10 and can produce longitudinal travel, and the key of this moment can not be extracted and be fixed in the lock body.In the process, lock 8 axle sleeves of following wheel hub rotate together by bike, leave wheel hub in order to prevent lock reliably, there is bolt fastener 14 to carry out bolt admittedly at lock body U-shaped open end, in order to lock conveniently, on axletree 1 both ends of the surface, be carved with and slotted hole 4 parallel marking, present embodiment is that straight flute 16 is seen Fig. 5.

The utility model contrast prior art has following advantage: locking is reliable, The car stealer wants to pry open or breakage is difficult to accomplish, perhaps will take a long time Just may accomplish.

Claims

1, a kind of theft-proof device for bicycle comprises lock, it is characterized in that, also has blend stop, and porose on blend stop, axletree and the axle sleeve, lock body straddles the bolt fastener anchoring behind axle sleeve.