CN201254247Y

CN201254247Y - Multifunctional foldable bicycle

Info

Publication number: CN201254247Y
Application number: CNU2008201652290U
Authority: CN
Inventors: 上官长树
Original assignee: Hangzhou Electronic Science and Technology University
Current assignee: Hangzhou Dianzi University; Hangzhou Electronic Science and Technology University
Priority date: 2008-09-30
Filing date: 2008-09-30
Publication date: 2009-06-10
Anticipated expiration: 2018-09-30

Abstract

The utility model relates to a multifunctional foldable bicycle which can be folded to be used as a small trailer when not in use. The multifunctional foldable bicycle comprises a handlebar, a stool, a saddle, a front wheel, a rear wheel, a frame which connects the two wheels, and a rail, and a transmission mechanism for driving the front wheel is installed on the bicycle. The rail of the frame of the bicycle consists of two short rails and a U-shaped ferrule; one end of each short rail is respectively hinged with the U-shaped ferrule to form a foldable rail; and the other ends of the two short rails are respectively hinged with a front shaft and a rear shaft of the frame through U-shaped hinging sleeves and are foldable. The multifunctional foldable bicycle has the advantages that: firstly, the bicycle can be folded, and a user can ride the bicycle to go to work and can easily take the bicycle to the office after folding the bicycle, thus avoiding the risk of being stolen; secondly, after being folded, the bicycle can be used as a small trailer, thus providing convenience for daily life; thirdly, the multifunctional foldable bicycle is novel, unique and simple in structure design, and is practical.

Description

Multifunctional folding bicycle

Technical field

The utility model relates to a kind of can with the multifunctional folding bicycle that the bicycle of folding up is used when towing dolly, the genus bicycle and make the field obsolete the time.

Background technology

Along with the increase of urbanization construction and urban population, it is very limited that parking space becomes in recent years; Foldable bicycle is at youngster's design-calculated city walking-replacing tool, have benefited from popularizing of carbon fibre material, with simple and cleverly physical construction itself, make its unfolded become faster, greatly facilitating the user carries and is suitable for, ride it and going to work, can easily take back office after folding fully.Yet existing Foldable bicycle on the market, can only put aside after folding, other functions never again, and because Collapsible bicycle is for folding easy to carry, omitted many inessential parts, especially economized bicycle basket, owing to do not had bicycle basket, Collapsible bicycle just can't carry a lot of things, brings many inconvenience to daily life.

Summary of the invention

Design goal: avoid the weak point in the background technology, design and a kind ofly can obsolete the time, fold up the multifunctional folding bicycle of using when towing dolly.

Design plan: to achieve these goals.1, be provided with the folding part that can make cross bar folding vertically upward in the cross bar of cycle frame, the connecting portion of cross bar two ends and vehicle frame is provided with rotating shaft respectively, and vehicle frame and rear wheel bracing frame are one of technical characterictics of the present utility model by the design of rotating shaft bonded assembly.The purpose of doing like this is: the one, be provided with the folding part that can make cross bar folding vertically upward in the cross bar of vehicle frame, and the connecting portion of cross bar two ends and vehicle frame is provided with rotating shaft respectively, just can make vertically rotation forward of cross bar, reaches folding purpose; The 2nd, vehicle frame is connected by rotating shaft with the rear wheel bracing frame, and can make whole back wheeling supporting frame and rear wheel is that the center is revolved and turn 90 degrees with the rotating shaft, the combination by, two, and whole car just can be folded into a towing dolly.2, driving band power wheel that connects drive wheels and the power wheel that is connected pedal, the power wheel that connects drive wheels are installed on the flower wheel, have formed the design of the transmission device of bicycle with upper-part, are two of technical characterictics of the present utility model.The purpose of doing like this is: the simplification of wheel transmission, both alleviated weight, and can make folding conveniently and do not influence the use of bicycle again, bring convenience to life.3, the junction of vehicle frame and front vehicle wheel and rear wheel bracing frame is provided with extensible member, is three of technical characterictic of the present utility model.The purpose of doing like this is: vehicle frame scalable, reduced the volume behind the bicycle folding, and be convenient for carrying.

Technical scheme: multifunctional folding bicycle, it comprises that handlebar is with car stool, vehicle seat front-wheel, trailing wheel and be connected two wheel vehicle frames and cross bar, the transmission device that drives front-wheel is installed above it, cross bar in the described cycle frame is made of two hyphen bars and U-shaped cutting ferrule, one end of two quarter butts is hinged and constitute folding cross bar with the U-shaped cutting ferrule respectively, and the other end of two quarter butts is hinged and collapsible by the front axle and the rear axle of hinged cover of U-shaped and vehicle frame respectively.

The utility model is compared with background technology, and the one, bicycle folding can be got up, riding it and going to work, can easily take back office after folding fully, reduce the stolen risk of car; The 2nd, car can be worked as towing dolly usefulness after folding up, and brings convenience to daily life; The 3rd, structure design novelty, uniqueness, simple, practical.

Description of drawings

Fig. 1 is the integral structure scheme drawing of multifunctional folding bicycle.

Fig. 2 is the structural representation of multifunctional folding bicycle transmission device.

The specific embodiment:

Embodiment 1: with reference to Fig. 1, multifunctional folding bicycle, it comprises that handlebar 2 is with car stool 3, vehicle seat front-wheel 5, trailing wheel 10 and be connected two wheel vehicle frames 1 and cross bar, the transmission device 6 that drives front-wheel 5 is installed above it, cross bar 8 in the cycle frame 1 is made of two hyphen bars and U-shaped cutting ferrule, hinged with the U-shaped the cutting ferrule respectively and other end that constitutes folding cross bar 8, two quarter butts of one end of two quarter butts respectively by the hinged cover 7 of U-shaped and 9 and the front axle and the rear axle 12 of vehicle frame 1 hinged and collapsible.The connecting portion of cross bar 8 two ends and vehicle frame 1 is provided with rotating shaft 12 respectively, can make vertically rotation forward of cross bar 8.The connecting portion of cross bar 8 two ends and vehicle frame 1 is provided with rotating shaft 12 respectively, vehicle frame 1 is connected by rotating shaft 12 with rear wheel bracing frame 10, can make whole back wheeling supporting frame 10 and rear wheel is that the center is revolved and turn 90 degrees with rotating shaft 12, that is to say, cross bar 8 is folding forward, and the rotating shaft 19 of vehicle frame 1 bonded assembly wheel is that perpendicular line revolves and turn 90 degrees and be folded into a towing dolly along line of centers.Front-wheel drive system 6 is a prior art, is not described herein at this.Described cycle frame mainly adopts carbon fibre material.Above-mentioned all parts productions all are prior art, so be not described herein at this.

What need understand is; though the foregoing description is to the utility model detailed text description of contrasting; but these text descriptions; it is simple description to the utility model mentality of designing; rather than to the restriction of mentality of designing of the present utility model; any combination, increase or modification that is no more than the utility model mentality of designing all falls in the protection domain of the present utility model.

Claims

1, a kind of multifunctional folding bicycle, it comprises that handlebar is with car stool, vehicle seat front-wheel, trailing wheel and be connected two wheel vehicle frames and cross bar, the transmission device that drives front-wheel is installed above it, it is characterized in that: the cross bar in the described cycle frame is made of two hyphen bars and U-shaped cutting ferrule, one end of two quarter butts is hinged and constitute folding cross bar with the U-shaped cutting ferrule respectively, and the other end of two quarter butts is hinged and collapsible by the front axle and the rear axle of hinged cover of U-shaped and vehicle frame respectively.

2, multifunctional folding bicycle according to claim 1 is characterized in that: cross bar is folding forward, and the rotating shaft of vehicle frame bonded assembly wheel is that perpendicular line revolves and turn 90 degrees and be folded into a towing dolly along line of centers.

3, according to claims 1 described multifunctional folding bicycle, it is characterized in that: the junction of vehicle frame and front vehicle wheel and rear wheel bracing frame is provided with extensible member.