CN2243509Y

CN2243509Y - Automatic lock of bicycle

Info

Publication number: CN2243509Y
Application number: CN 95219608
Authority: CN
Inventors: 刘君
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-03
Filing date: 1995-08-03
Publication date: 1996-12-25
Anticipated expiration: 2005-08-03

Abstract

The utility model relates to an automatic lock of a bicycle. The utility model is arranged on the cross position of a vertical fork and a horizontal fork of a rear wheel frame of the bicycle. The lock is a tubular case body, a rotating shaft is arranged in the lock body, and two lock rods are welded on the rotating shaft. When the bicycle lock is locked, the lock rods are inserted in the clearances of spokes of the bicycle. When the bicycle lock is unlocked, the rotating shaft causes the lock rods to rotate out from the clearances of the spokes of the bicycle under the action of a torsion spring. In addition, a steel wire stay cord is connected to the rotating shaft in the lock body, and the other end of the steel wire stay cord is connected to a locking handle of a bicycle step. When the bicycle step is locked, the stay cord is simultaneously driven to lock the bicycle lock. The bicycle lock which reduces locking program has the advantages of reliable performance, convenience, practicality and strong anti-theft performance.

Description

Automatic lock for bicycle

The utility model belongs to bicycle lock, relates in particular to and the relevant lockset of car ladder.

Hockey stick lock that the half garden arc that is located at rear guard and the upright fork of trailing wheel intersection is arranged that the bicycle lock of Xiao Shouing is seen usually in the market and the straight rod lock that is located at the upright fork place of front-wheel or trailing wheel.Above-mentioned lock safety factor is little, and car is lost easily.And, lock also fragile.

The purpose of this utility model is that a kind of performance of design is firm, and is convenient and practical and can reduce the novel lock of the program of locking car.

The utility model is achieved in that the housing that is equipped with the lock of a tubulose in the upright fork of the rear wheel frame of bicycle and the intersection of chain stay.One rotating turning cylinder is housed in lock body.On turning cylinder, be welded with two lock rods, lock rod and upright fork when lock is opened, chain stay is on the plane.When locking, the lock rod is promptly locked rod and is inserted in the bike spoke sky perpendicular to the plane that upright fork is become with chain stay.Have an elongate slot on lock body, a steel wire backguy one end links to each other with turning cylinder by slit, and the other end links to each other with lock handle on the car ladder by the saddle that is fixed on the bicycle rear axle.When the lock bicycle, as long as the car ladder is put down, car ladder lock handle drives the steel wire backguy in locking process, and the other end of steel wire backguy this moment just spurs the turning cylinder motion in the lock body, and makes the lock rod on the turning cylinder pull to lock-out state from opening.

If car ladder damages or when not using the car ladder because of certain reason, available hand propelled lock rod steering locking state.

During unlatching, open lock with key, turning cylinder makes the lock rod go back to opening in the tension force turning down of spring.

The utility model has the advantages that:

1, lockset is reasonable in design, and not fragile, theftproof is strong.

2, owing to the lock out action of finishing lock by the lock handle on the car ladder, reduced lock range of driving preface, made the use of lock more easy.

3, this lock also can lock the lock out action that the car ladder is finished lock under special situation, and only with hand will be locked rod and push to gently can finish lock program in the bike spoke sky.

4, this lock can be used for various single leg car ladders and can be applicable to various both legs car ladders again.

Description of drawings:

Fig. 1 is the utility model schematic diagram

Fig. 2 is the novel torsion spring structure chart of this reality

Fig. 3 is the utility model backguy locking knot composition

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

At the chain stay 20 of bicycle rear, upright fork 21 place, a side space (Fig. 3) that intersects the lock housing body 1 of an elongated tubular is housed, respectively the two ends of lock is fixed on the chain stay 20 and upright fork 21 of back vehicle frame by fixed cover 4.

Fixed cover 4 and lock housing body 1 usefulness screw thread join (Fig. 1) be equipped with turning cylinder 2 in the centre of tubulose lock housing body 1, its two ends are the convex shape shaft and insert in the corresponding Baltimore grooves of fixed cover 4 inboard and protruding axles.Turning cylinder 2 can be mediated in lock housing body 1 also can freely rotate.On turning cylinder 2, be welded with two lock rods 3, on lock housing body 1 corresponding lock rod 3 positions, have rotation slot 10, make the lock rod can keep the slewing area of 90 degree.Lock stamen 8 is housed on lock housing body 1, is connected with shift fork 7 in the inner of lock stamen 8, when opening lock, rotation lock stamen 8 drives shift forks 7, and shift fork 7 pulling location locks 5 compression springs 6 make in 5 on the location lock lock slots from the turning cylinder 2 to spin off.Turning cylinder 2 produces under the effect that is located at the torsion spring 9 between turning cylinder 2 ends protrusion position and the fixed cover 4 and reverses, turns to opening from the lock-out state of locking (Fig. 1 is a lock-out state).(being that figure dotted line position is the position of locking after rod 3 is opened among Fig. 1).Lock rod 3 is consistent with the radial direction of trailing wheel spoke under opening.(Fig. 3 opens shape for lock) has an elongate slot 11 in addition on lock housing body 1 makes steel wire backguy 12 1 ends be connected with turning cylinder 2 by elongate slot 11, steel wire backguy 12 other ends are gone up in backguy saddle 13 grooves with car ladder lock handle 18 on the car ladder 19 and are linked to each other by being fixed on 22 on car rear axle, and its backguy 12 terminations are fixed on the bolt 17.In the backguy between backguy saddle 13 and the lock handle 18, be with backguy flexible pipe 15, be fixed with the spacing card 14 of backguy flexible pipe in flexible pipe 15 and saddle 13 junctions.

The whole locking process of its automatic locking is, putting down car ladder 19 lock handle 18 when locking car ladder can be removed lock handle 18 to lock-out state with pin by free state, under the pulling of car ladder spring 16, make the locking of car ladder, this action drives the steel wire backguy 12 that connects on the car ladder lock handle, and backguy 12 makes lock enter lock-out state from opening by the turning cylinder 2 in the saddle 13 pulling lock housing bodies 1, promptly lock rod 3 and insert in the width of cloth bar sky of bicycle rear, make the bicycle locking.

If lock lock without the car ladder, also backguy 12 and saddle, backguy flexible pipe can be removed, only with hand will be locked rod 3 and push to gently in the rung bar neutral gear in the time of at this moment will locking lock, and this moment, lock promptly locked.

The lock rod 3 of this lock also can adopt 1 use.

Claims

1, a kind of automatic lock for bicycle, comprise the lock housing body, the lock stamen, the lock rod is characterized in that: be connected with fixed cover (4) at the two ends of lock housing body (1), be equipped with turning cylinder (2) at the middle part of lock housing body (1), its two ends are the convex shape shaft and insert in fixed cover (4) inboard and the corresponding Baltimore groove of convex axle, turning cylinder (2) is positioned at the centre position of lock housing body (1), and be welded with thereon two the lock rods (3), on the corresponding position of lock housing body (1), have and to make lock rod (3) keep the rotation slot (10) of the slewing area of 90 degree, lock stamen (8) is housed on lock housing body (1), the inner at lock stamen (8) is connected with shift fork (7), shift fork (7) joins with alignment pin (5), alignment pin one end is connected with compression spring (6), lock slots on the other end and the turning cylinder (2) joins, be provided with torsion spring (9) between the convex axle of turning cylinder (2) end and fixed cover (4), this lock body is by the fixed cover (4) at two ends and the upright fork (21) of bicycle rear, chain stay (20) is connected.

2, automatic lock for bicycle according to claim 1, it is characterized in that: on the lock housing body, have an elongate slot (11), steel wire backguy (12) one ends join by elongate slot (11) and turning cylinder (2), the other end of backguy (12) is gone up in backguy saddle (13) groove with the terraced lock handle of car (18) on the car ladder (19) and is linked to each other by being fixed on car rear axle (22), its backguy (12) termination is fixed on the bolt (17), be with backguy flexible pipe (15) in the backguy (12) between backguy saddle (13) and the lock handle (18), the junction of flexible pipe and saddle (13) is fixed with backguy flexible pipe limit and draws card (14).

3, according to claim 1,2 described automatic lock for bicycle, it is characterized in that: the lock rod (3) of lock can adopt 1.