CN201703466U

CN201703466U - Antitheft bicycle

Info

Publication number: CN201703466U
Application number: CN2009202868738U
Authority: CN
Inventors: 程千里
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2009-12-30
Filing date: 2009-12-30
Publication date: 2011-01-12
Anticipated expiration: 2019-12-30

Abstract

The utility model discloses an antitheft bicycle, which comprises a front wheel, a rear wheel, a frame with a saddle, pedals, two driving gears and a brake system as the original bicycle, wherein the pedals and the two driving gears are mounted on the frame. The antitheft bicycle is characterized in that the neck of a bicycle stem and a cross bar can be folded together via a hinge at the connecting joint of a connecting rod of the bicycle stem and the cross bar of the frame, a pin lock body is arranged in the neck of the bicycle stem, a lock hole inserted with a key and a bolt hole are arranged on the outer side of the bicycle stem, the neck of the bicycle stem is folded and locked on the cross bar by aid of the bolt hole and a locking hole correspondingly arranged on the cross bar via a bolt of the lock body, and a sliding sheath is sleeved on the neck of the bicycle stem and can cover the lock hole by means of sliding when the neck of the bicycle stem is locked with the cross bar. When in riding, the sheath can slide to the folding portion to prevent the neck of the bicycle stem from being folded, thereby guaranteeing normal riding.

Description

Anti-theft bicycle

Technical field:

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

Background technology:

The theftproof performance of present most of bicycles is all very general, trace it to its cause is that the lock of most bicycles is individual components that are placed on the car body, the thief is as long as destroy lock, do not bring disaster to bicycle itself, that just can be stolen bicycle easily under the good situation of the stolen bicycle vehicle condition of maintenance.

The utility model content:

The purpose of this utility model provides a kind of anti-theft bicycle.This bicycle is provided with a lock body by the neck at handlebar and pins crooked headstock neck, even make that the burglar steals whole bicycle, also can't normally use this bicycle.Thereby given up stealing the stealing thought of car people, improved its theft-proof purpose it.

According to above-mentioned purpose, its technical scheme is as follows:

This anti-theft bicycle comprises front and back wheel, the vehicle frame that has the seat that existing bicycle possessed, is placed in stretcher and two driven wheels and brake system on the vehicle frame; It is characterized in that described handlebar connecting rod and vehicle frame cross bar junction can make the neck of handlebar and cross bar fold by hinge; Be provided with a latch lock body in the neck of described handlebar, the outside is provided with a lockhole that is used for inserting key, also is provided with a dead bolt hole; The dead bolt of the cooresponding bonnet lock hole that is provided with on this dead bolt hole and the cross bar by lock body is folded on the cross bar neck of handlebar locked; The neck of described handlebar also is with a slip sheath, when the neck of handlebar is locked mutually with cross bar, this sheath can be covered lockhole by sliding, by bike the time, can prevent that the handlebar neck flexion is folding, the normal use when guaranteeing by bike by this sheath being slided into the folding part.

The beneficial effects of the utility model are:

Bicycle structure described in the utility model is simple, and is easy to use, safe and reliable, be skillfully constructed, and be easy to promote, car load is stolen even the most important thing is the burglar, if but do not drive the lock of handlebar neck, and whole car still can't normally use, and the burglar can't sell stolen car night.

Description of drawings:

Fig. 1 is an integral structure scheme drawing of the present utility model.

Fig. 2 is the status architecture scheme drawing of bicycle described in the utility model when riding;

Fig. 3 is the status architecture scheme drawing of bicycle described in the utility model behind the lock car.

The specific embodiment:

Further specify the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1-Fig. 3, anti-theft bicycle described in the utility model comprises front and back wheel 1, the vehicle frame 2 that has the seat that existing bicycle possessed, is placed in stretcher 3 and two driven wheels 4 and brake system (not marking among the figure) on the vehicle frame; Described handlebar connecting rod 5 can make the neck of handlebar and cross bar fold with vehicle frame cross bar 6 junctions by hinge; Be provided with a latch lock body 52 in the neck 51 of described handlebar, the outside is provided with a lockhole 53 that is used for inserting key, also is provided with a dead bolt hole 54; The dead bolt of the cooresponding bonnet lock hole 61 that is provided with on this dead bolt hole 54 and the cross bar by lock body is folded on the cross bar neck of handlebar locked; The neck of described handlebar also is with a slip sheath 55, when the neck of handlebar is locked mutually with cross bar, this sheath can be covered lockhole by sliding, by bike the time, can prevent that the handlebar neck flexion is folding, the normal use when guaranteeing by bike by this sheath being slided into the folding part.

This bicycle is when riding, and the user is as long as push the neck burst with the sheath cunning, makes headstock carry to ride that Shi Buhui is crooked automatically and influence is ridden.And after locking, folding the carrying on the cross bar of handlebar neck fixed locked with it.Say that then the top that the sheath cunning pushes lockhole covers lockhole, so also avoided foreign material to fall into lockhole and influence and unblank.

More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. anti-theft bicycle comprises front and back wheel, the vehicle frame that has the seat that existing bicycle possessed, is placed in stretcher and two driven wheels and brake system on the vehicle frame; It is characterized in that described handlebar connecting rod and vehicle frame cross bar junction can make the neck of handlebar and cross bar fold by hinge; Be provided with a latch lock body in the neck of described handlebar, the outside is provided with a lockhole that is used for inserting key, also is provided with a dead bolt hole; The dead bolt of the cooresponding bonnet lock hole that is provided with on this dead bolt hole and the cross bar by lock body is folded on the cross bar neck of handlebar locked; The neck of described handlebar also is with a slip sheath, when the neck of handlebar is locked mutually with cross bar, this sheath can be covered lockhole by sliding, and can prevent that the handlebar neck flexion is folding by this sheath being slided into the folding part by bike the time.