CN2089051U - Double function anti-theft lock for bicycle - Google Patents

Abstract

The utility model discloses an anti-theft device for a bicycle, in particular to a double-function anti-theft lock for the bicycle, comprising a lock body fixed on a bicycle lamp frame, a fixed bearing support, and a metal chain. The utility model can simultaneously lock a front wheel and a bicycle tap, causing the front wheel and the bicycle tap can not rotate, having the advantages of simple structure, convenient operation, and multifunction. The utility model is suitable for all bicycles and tricycles for men and women, having double-function locking effect.

Description

Double function anti-theft lock for bicycle

The utility model technical field belongs to the device of the bicycle that avoids theft, particularly a kind of bicycle double-function antitheft lock.

Anti-theft lock for bicycle generally all is to pin bicycle rear at present.The dress lock on the headstock front fork that has, turning to of locking bicycle makes bicycle can not rotate tap, makes bicycle can not ride usefulness.When also having the foot rest of employing to support bicycle, the locking foot rest makes car can't ride usefulness.Above-mentioned all kinds of anti-theft lock for bicycle all is single locks, only locks wheel or only lock tap handlebar can not be rotated, and to avoid theft, this kind taken precautions against or be not ideal enough, and the burglar steals bicycle and still is relatively easy to.

The purpose of this utility model provides a kind ofly can pin the bicycle front-wheel, again simultaneously can be with a kind of double-function antitheft lock of turning of bicycle handlebar locked on a fixed-direction.

Task of the present utility model, finish with the following methods: it is made of the lock body, fixed bearing block and the metallic bond that are fixed on the lamp bracket.The pintle hook lock bar is equipped with in the lock core connection of lock body.Locking bar has stop-return slot, and the locking bar bottom is passed spring and is contained in the lock body.Circular hole, hole and draw-in groove are arranged on the plate of fixed bearing block.Metallic bond one end is fixed on the hole, and the other end is connected with bail.

The bicycle double-function antitheft lock has the two-way safeguarding function of theft protection, and it pins front-wheel and simultaneously the turning of bicycle grip handle lock is stayed on the permanent position.Utilize metallic bond, also can be arbitrarily with bicycle lock on tree bar and electric pole or road iron railing, bring convenience to the user.Have simple in structure, easy to use, advantage such as function is many.

Fig. 1 bicycle double-function antitheft lock structural representation

Fig. 2 locking bar, pintle hook lock bar and spring correlation schematic diagram

Fig. 3 bail schematic diagram

Fig. 4 lock body, lamp bracket and fixed bearing block correlation figure

Fig. 5 clamp nut schematic diagram

Fig. 6 lock body and lamp bracket correlation schematic diagram

Fig. 7 bearing support schematic diagram

Fig. 8 fixed bearing block schematic diagram

Below in conjunction with accompanying drawing the utility model is described in further detail: the bicycle double-function antitheft lock, its lock body (5) is contained on the lamp bracket (3) of handle-bar, fixed bearing block (7) has an outstanding plate, draw-in groove (13) is arranged above, circular hole (14) and hole (15).Metallic bond (8) one ends are fixed on hole (15), and the other end is connected with bail (9).Pintle hook lock bar (12) is equipped with in lock core (11) connection of lock body (5), and pintle hook lock bar (12) is triangular in shape.Locking bar (4) has stop-return slot (17), and locking bar (4) bottom is passed spring (10) and is contained in the lock body (5).Headstock column (1), tripod (16), clamp nut (2) and top chock (6) shape are with existing identical.During work, after bicycle come to a complete stop, the other end that an existing end is connected the metallic bond (8) of hole (15) passed the bicycle front-wheel or passes other again and is difficult for moving or irremovable iron railing, tree bar earlier.Bail (9) with metallic bond (8) inserts in the draw-in groove (13) again.Rotate handle-bar, change an angle, bicycle lamp's frame (3) is being with lock body (5) also to change same angle.At this moment, lock body (5) bottom on the lamp bracket (3) just in time stops draw-in groove (13) opening part, and bail (9) can not be shifted out, and reaches the purpose of pinning the bicycle front-wheel.Simultaneously, locking bar (4) is aimed at circular hole (14) to pressing down; And passes circular hole (14), the key that will inject lock core (11) rotates, drive the rotation of lock core (11) and pintle hook lock bar (12), pintle hook lock bar (12) is inserted in the stop-return slot (17), blocks locking bar (4) return that can not make progress, like this, reach the purpose that the locking headstock turns to.At this moment, bicycle front-wheel and headstock turn to all and pin together.Theft bicycle person's burglar wants bicycle stolen and brings more difficulty, has just increased the security performance of bicycle parking.

When opening lock, as long as key is inserted lock core (11), rotational lock core (11), driving pintle hook lock bar (12) rotates, pintle hook lock bar (12) leaves stop-return slot (17) (seeing Fig. 2 dotted line position), locking bar (4) is under spring (10) elastic force effect, moving up resets, and locking bar (4) withdraws from the circular hole (14) of fixed bearing block (7), rotates headstock, lock body (5) bottom moves apart draw-in groove (13) opening part, bail (9) is withdrawed from draw-in groove (13), metallic bond is withdrawed from object and the bicycle front-wheel that is passed, at this moment, handle-bar and front-wheel all can rotate, and bicycle can be ridden usefulness at any time.

Men and women's formula bicycle and tricycle that this bicycle double-function antitheft lock is suitable for all models use, and all have the effect of difunctional locking.

Claims (1)

1, a kind of bicycle double-function antitheft lock is characterized in that being made of the lock body (5), fixed bearing block (7) and the metallic bond (8) that are fixed on the lamp bracket (3); Pintle hook lock bar (12) is equipped with in lock core (11) connection of lock body (5), locking bar (4) has stop-return slot (17), locking bar (4) bottom is passed spring (10) and is contained in the lock body (5), circular hole (14), hole (15) and draw-in groove (13) are arranged on the plate of fixed bearing block (7), metallic bond (8) one ends are fixed on the hole (15), and the other end is connected with bail (9).

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