CN2286710Y - Built-in anti-theft lock for bicycle - Google Patents

Abstract

The utility model relates to a built-in anti-theft lock for bicycles, which is mainly composed of a sleeve nut of a lock core, a lock core, a deflector rod, a slide block of a lock core of a lock body, a positioning screw, a post of a lock tongue, a screw rod of a handle bar, a screw nut of a screw rod and an anti-rain cover plate. A lock body is a hollow sleeve barrel which is positioned below the bottom of the sleeve nut of a lockcore; the deflector rod is installed in the lock body; the deflector rod is respectively connected with the lock core and passes through a slide block; the slide block is fixed in the lock body by the positioning screw; an upper gear of the deflector rod is engaged with a gear rack on the post of a lock tongue. When the utility model is locked, the post of a lock tongue is used for limiting the freedom of the handle bar through the lock body, a vertical pipe of a front fork and a through hole of a front sleeve barrel of a bicycle frame.

Description

Stealthy anti-theft lock for bicycle

The utility model provides a kind of stealthy anti-theft lock for bicycle, belongs to the theft-proof device for bicycle field in the transportation class.

Theft-proof device for bicycle in the prior art background has split type, integral type, and the branch of stealthy and non-stealth is also arranged in the integral type, and stealthy lockset is mostly with complex structure, and the matching requirements height is difficult to widespread use.

This stealthy anti-theft lock for bicycle that the utility model relates to utilizes lock core is set in the stem under the bicycle handle bar, and by lock core connection driving lever, stir the dead bolt post through driving lever, move each corresponding aperture that inserts in the triangular frame by the dead bolt post, thereby pin the degree of freedom of handlebar, make bicycle lose locomitivity.

The utlity model has the prospect of widespread use, leave with the assurance that provides on the structural measure, can also be used for the anti-joyride device of motor bike, light motor moped for the bicycle safe failure-free.The utility model compact conformation, simple, have a very high economic value.

Below with reference to accompanying drawing feature of the present utility model is further described:

The installation site scheme drawing of the stealthy anti-theft lock for bicycle of Fig. 1

The structural representation of the stealthy anti-theft lock for bicycle of Fig. 2

Fig. 3 lock pin cut-away section structural representation

The utility model mainly by lock core cover mother 1, lock core 2, driving lever 3, lock body 4, lock core slide block 5, fixing screw 6, dead bolt post 7, handlebar screw mandrel 8, feed screw nut 9, rainproof cover plate 10, its principal character and connecting mode is: stealthy anti-theft lock for bicycle is fixed on the upper end of stem 14 by lock core cover female 1, the lock body 4 of anti-theft column lock is arranged in the stem 14, and makes whole anti-theft column lock become stealth.Establish lock core 2 in the lock core cover female 1, the upper surface of lock core cover female 1 has rainproof cover plate 10, rainproof cover plate 10 can be made ornamental plate, establish driving lever 3 in the lock body 4, driving lever 3 one ends are connected on the lock core 2, the other end that has gear is by having the lock core slide block 5 in post hole, to driving lever 3 radial locations, lock core slide block 5 is positioned in the lock body 4 by fixing screw 6, the dead bolt post 7 that has tooth bar is arranged in the post hole of lock core slide block 5, gear on the driving lever 3 and the engagement of dead bolt post 7 upper racks, the other end of lock body 4 is provided with handlebar screw mandrel 8, by feed screw nut 9 connection, the other end of lock body 4 is positioned at an end of stem 14, in the time of need locking, through key turns, drive lock core and driving lever and rotate, drive 7 translations of dead bolt post again, by through hole on the lock body 4 and stem 14 through holes, vertical tube of front fork 13 through holes, vehicle frame front sleeve 12 through holes, last handlebar degree of freedom is restricted.

The axial location of described lock core slide block 5 in lock body 4 is adjustable.

Claims (3)

1, a kind of stealthy anti-theft lock for bicycle, it is characterized in that mainly by lock core cover female 1, lock core 2, driving lever 3, lock body 4, lock core slide block 5, fixing screw 6, dead bolt post 7, handlebar screw mandrel 8, the feed screw nut 9, rainproof cover plate 10 constitutes, establish lock core 2 in the lock core cover female 1, the upper surface has rainproof cover plate 10, lock body 4 is cannulated sleeves, be directly fixed on lock core and overlap female 1 bottom surface, make one, establish driving lever 3 in the lock body 4, driving lever 3 one ends are connected on the lock core 2, the other end that has gear is by having lock core slide block 5 radial locations in post hole, the sliding position of lock core 5 is fixed in the lock body 4 by fixing screw 6, the dead bolt post 7 that has tooth bar is arranged in the post hole of lock core slide block 5, the tooth bar engagement on the gear of driving lever 3 and the dead bolt post 7.

2, stealthy anti-theft lock for bicycle according to claim 1, its feature is that also lock core cover female 1 is fixed on stem 14 upper ends, lock body 4 is arranged in the stem 14, the other end of lock body 4 is provided with handlebar screw mandrel 8, by feed screw nut 9 connection, the other end of lock body 4 is positioned at an end of stem 14.

3, according to claim 1 and 2 described this stealthy anti-theft lock for bicycle, its feature is that also the axial location of lock core slide block 5 in lock body 4 is adjustable.

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