CN2367516Y

CN2367516Y - Antitheft bicycle

Info

Publication number: CN2367516Y
Application number: CN 99235511
Authority: CN
Inventors: 梁志伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-09
Filing date: 1999-03-09
Publication date: 2000-03-08
Anticipated expiration: 2009-03-09

Abstract

The utility model relates to a theft-proof bicycle comprising a bicycle frame, bicycle wheels and pedals. The utility model is characterized in that a vertical fork or a horizontal fork or a front fork of the bicycle frame is provided with a through hole sleeve which can be matched with a lock bolt and a blind hole sleeve; the through hole sleeve and the blind hole sleeve are respectively arranged between the cross section of each bicycle fork. The interior of the through hole sleeve or the blind hole sleeve is provided with a positioning ejector pin or a groove. The lock bolt provided with a lock head is arranged between the through hole sleeve and the blind hole sleeve; the lock bolt provided with a lock head is provided with a positioning groove or an ejector pin matched with the positioning ejector pin or the groove in the sleeve to realize locking or opening.

Description

Anti-theft bicycle

The utility model relates to a kind of anti-theft bicycle.

As everyone knows, bicycle is the daily vehicle of riding instead of walk of people and strong equipment to motion, quite universal in China, but bicycle is very easily stolen, the bicycle integral structure is observed, it does not have anti-theft feature, generally be car load dispatch from the factory be sold in client's hand after, buy one in addition onboard by client again the lock installation, the lock of installing is easily by robber broken two with disassemble, so the robber after easily car being removed rides away car, bicycle is stolen and sold the problem that dirty vile practices become social concerns in a large number, the halter lock also by every means, is for example installed at front fork for this reason by bicycle maker; Add weldering one lock etc. on vehicle frame, but that the licence sample is stolen and sold is dirty, key is that vehicle frame and lock body are two parts, can be in many ways with its separation, and to bicycle structure without any destruction, what damage the surface of bicycle is not had yet.

The purpose of this utility model is for overcoming the shortcoming of above-mentioned prior art, provide a kind of lock body and vehicle frame are combined into the single-piece anti-theft bicycle, vehicle frame and through hole sleeve and blind hole sleeve are combined into an indivisible lock body by methods such as electric welding or edge are solid, both vehicle frame was the connecting bridge of this lock body, the robber had both damaged vehicle frame as destroying lock body, car can't be ridden away, also can't sell dirty, therefore reach the purpose of theft protection.

A kind of anti-theft bicycle comprises vehicle frame, and wheel and step is characterized in that on the upright fork of vehicle frame or horizontal fork or front fork the through hole sleeve and the blind hole sleeve that can cooperate with locking bolt being set.Through hole sleeve and blind hole sleeve are separately positioned in the middle of the cross section of each car fork.One location protruding pin or groove is set in through hole sleeve or the blind hole sleeve.The locking bolt of one head with lock is set between through hole sleeve and the blind hole sleeve, and the locking bolt of head with lock is provided with detent or protruding pin, with location protruding pin or the groove fit in the sleeve, realizes locking or unlatching.

The present technique feature is achieved by the following scheme: the upright fork of vehicle frame or horizontal fork or front fork are blocked or part is blocked fully from transversal surface, in its complete truncated position or the disconnected place of part or side welds respectively or fix a through hole sleeve and blind hole sleeve with additive method, make vehicle frame and through hole sleeve and blind hole sleeve constitute an indivisible lock body, both vehicle frame became the connecting bridge of lock body, was provided with a locating dowel pin or emboss pit in the blind hole sleeve; Be provided with a locating dowel pin or knock hole or convex-concave platform in the through hole sleeve, the tapered end that is mated, locking bolt are provided with cooresponding opposite positioning groove, hole or convex-concave platform, the individual member that combines with locking bolt for the tapered end of being handled by the pin spoon inserts through hole sleeve and blind hole sleeve, to wheel can not be rotated.

Further improve as the utility model, can adapt to high-grade bicycle adopts, with non-metallic materials such as fibers whole make or with metallic materials such as aluminum alloys whole make vehicle frame in, common integral body on the position of the horizontal fork of upright fork creates with through hole sleeve and blind hole sleeve.

Described tapered end is formed the closedown structure that can insert two sleeves of anti-theft bicycle by connecting pin and locking bolt, can extract back two sleeves of disengaging when riding again deposits separately, the locking bolt front end is provided with tongue that horizontal longitudinal phase hands over or tongue always, tapered end is provided with tongue always or is provided with the pin that rises and falls of a knee-action, and the knock hole of rise and fall pin and through hole sleeve is corresponding.

The utility model anti-theft bicycle is compared with the bicycle of prior art has following advantage: factory has finished the manufacturing of lock body again when making vehicle frame, make vehicle frame both keep original purposes and rigidity, has anti-theft feature again, the assembling of spraying paint of two sleeves and vehicle frame integral body is dispatched from the factory, both elegant in appearance, sturdy and durable again, eliminated the worry of wanting purchase of customer, installation lock in the past, reduced the weight and the cost of lock.And adopt independently locking bolt member, the anti-saw of this member shearing resistance is anti-pounds long service life, for example when this member contingency has quality or other problems, can change at any time, not influence the use of bicycle, not resemble halter lock etc., in case key is lost or is locked self to damage and scraps, residual body then the people burden of car.Above-mentioned technical characterictic can also be applied on electric power, the motion-aiding bicycle of fuel and various motor bike.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the front view of ordinary bicycle of the present utility model.

Fig. 2 is the front view of high-grade bicycle of the present utility model.

Fig. 3 is the cutaway view of the upright fork of the utility model vehicle frame and lock body, locking bolt.

Fig. 1, Fig. 2 and anti-theft bicycle shown in Figure 3 are by handle (1), front fork (2), front-wheel (3), step (4), trailing wheel (6), through hole sleeve (8), seat (9), vehicle frame (10), blind hole sleeve 911), locking bolt (12), locating dowel pin (13), connecting pin (14), tapered end (15), key formations such as (16).

Fig. 1 is the embodiment on ordinary bicycle: the cross-sectional plane that the upright fork (7) of vehicle frame (10) is in position in the trailing wheel blocks fully or part is blocked, press the sharp processing one circular arc interface of through hole sleeve (8) and blind hole sleeve (11) in the truncated position, then through hole sleeve (8) and blind hole sleeve (11) are placed on respectively in the circular arc interface of truncated position, the axial line of two sleeves is overlapped, use the welding method firm welding again, perhaps install firmly with additive method, in addition, also can not block upright fork (7), directly with two sleeves (8), (11) be welded on its side, two sleeves are connected to become an indivisible lock body by vehicle frame (10), and both vehicle frame (10) became the part of lock body.

Fig. 2 is the embodiment on high-grade bicycle: this vehicle frame (10) is with the whole manufacturing of non-metallic materials such as fiber or made in one piece with metallic materials such as aluminum alloys, in the while made in one piece, through hole sleeve (8) and blind hole tube (11) are fabricated directly in upright fork (7) or the horizontal fork (5), not only firm but also attractive in appearance like this.

Fig. 1 also comprises other two kinds of embodiments: both through hole sleeve (8) and blind hole sleeve (11) have been welded or be fixed on the truncation surface of the horizontal fork (5) of vehicle frame (10) or front fork (2), the front-wheel (3) that lock body that combines with front fork (2) and locking bolt are used for the locking bicycle.

Shown in Figure 3: tapered end (15) lock body (12) connects with connecting pin (14), forms and independently locks full member, and the position that this moment, locking bolt stopped is a locking states, sees Fig. 3, is provided with locating dowel pin (13) in the blind hole sleeve (11), is used for locking bolt (12) location; Be provided with locating dowel pin (13) in the through hole sleeve (8), be used for tapered end (15) location, locking bolt (12) head is provided with the groove that horizontal longitudinal phase is handed over; Tapered end 915) is provided with groove always.During locking, the locking bolt member is inserted from through hole sleeve (8), make locking bolt (12) head enter blind hole sleeve (11), two locating dowel pins (13), (13) contact locking bolt (12) and tapered end 915 separately) groove, during inverse time screw key (16) drive locking bolt (12) inverse time rotation, the horizontal groove of locking bolt (12) head enters the locating dowel pin (13) of blind hole sleeve (11), extracts key (16), and wheel is both by locking bolt (12) screens.When opening lock, after inserting key (16) and up time and rotating to an angle, together extract in addition together with the locking bolt member and to deposit, both can walk by bike.

Another kind of embodiment is: be provided with a knock hole or positioning groove in the through hole sleeve, but tapered end is provided with the locating dowel pin of knee-action, and its knee-action is by key-operated, and revert action is carried out by spring or shell fragment, key-operated also have a various ways, and for example up time, inverse time rotation, front and back promote; Before and after promotion and up time, inverse time rotate and combine etc.

Because the key position of tapered end and locking bolt is sealed by through hole sleeve and blind hole sleeve, two sleeves again with vehicle frame soldering and sealing, locking bolt self rigidity and intensity can resist the saw shearing resistance in addition, so have stronger anti-theft feature.

Obviously, the utility model embodiment also can be applied on electric power or the motion-aiding bicycle of fuel, and on the various motor bike, such expanded application and conversion all drop within the utility model protection domain.

Claims

1, a kind of anti-theft bicycle comprises vehicle frame, and wheel and step is characterized in that on the upright fork (7) of vehicle frame or horizontal fork (5) or front fork (2) the through hole sleeve (8) and the blind hole sleeve (11) that can cooperate with locking bolt being set.

2, anti-theft bicycle according to claim 1 is characterized in that described through hole sleeve (8) and blind hole sleeve (11) are separately positioned in the middle of the cross section of each car fork.

3, anti-theft bicycle according to claim 1 is characterized in that being provided with in described through hole sleeve or the blind hole sleeve location protruding pin or a groove (13).

4, according to claim 1 or 3 described anti-theft bicycles, it is characterized in that being provided with between through hole sleeve and the blind hole sleeve locking bolt (12) of a head with lock, the locking bolt of head with lock is provided with detent or protruding pin, with location protruding pin or the groove fit in the sleeve, realizes locking or unlatching.