CN203306172U

CN203306172U - Multipurpose folding bicycle

Info

Publication number: CN203306172U
Application number: CN2013201519492U
Authority: CN
Inventors: 袁鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-11-27
Anticipated expiration: 2023-03-29

Abstract

The utility model relates to a multipurpose folding bicycle. The multipurpose folding bicycle comprises a bicycle frame, a front wheel, a rear wheel and a transmission assembly. The multipurpose folding bicycle is characterized in that a chain wheel is arranged at the position, in front of the transmission assembly, of the bicycle frame, a chain is arranged between the chain wheel and the transmission assembly, and the chain wheel is driven by pedals; a reinforcing connection rod is arranged between a shaft sleeve of the chain wheel and the bicycle frame; an auxiliary seat is arranged on the bicycle frame; a side wheel is arranged on a support of the rear wheel; a lower transverse beam of the bicycle frame comprises a left transverse beam and a right transverse beam, a movable connection part is arranged between the left transverse beam and the right transverse beam, and the movable connection part moves downwards when the multipurpose folding bicycle is folded. The multipurpose folding bicycle has the advantages that the defects that former products do not conform to the design principle of human mechanics and are low in running speed are overcome; when the multipurpose folding bicycle is folded, the new purposes of a luggage cart, a movable seat and the like can be achieved.

Description

Multi-purpose folding bicycle

Technical field

The utility model relates to a kind of folding portable bicycle.

Background technology

On bicycle, in the development course of a century, practical many times improvement was arranged, these improvement, be all in order to allow the bicyclist that better experience is arranged.In improvement direction, to tend to fold, portable design is a very important aspect beyond doubt.

In the folding bicycle evolution, product (ZL200510073039.7, ZL 200520107711.5) by Clive Ma Ersixinkelai jazz design is all to have arrived a quite high degree at weight, folding rate, volume etc., yet up to now, this product is at sales volume or poor on the market.

Analyze its reason: above-mentioned product still has its unvanquishable three large shortcoming: the one, and the different design after foot-operated leaning on closes human engineering mechanics's principle, and while riding, the sensation posture is inharmonious, and also easily tired, riding speed is slow; The 2nd, purposes is single, can not any other new purposes be arranged to the user after folding; The 3rd, the weight after folding all relies on manpower to move, and for the bad old man of strength or children, this shortcoming allows them can't use product.

Our improvement is exactly on the basis of ZL 200510073039.7, ZL 200520107711.5 described bicycles, for not enough aspect, and further design.

Summary of the invention

The purpose of this utility model is to provide multi-purpose folding bicycle to make up the deficiency of prior art.

The utility model is that the technical scheme that realizes purpose is: multi-purpose folding bicycle, comprise vehicle frame, front-wheel, trailing wheel and drive assembly, it is characterized in that: on the vehicle frame before drive assembly, be provided with a sprocket wheel, between sprocket wheel and drive assembly, chain arranged, sprocket wheel is driven by foot-operated.

Further optimize: between the axle sleeve of sprocket wheel and vehicle frame, be provided with the reinforcement connecting rod.

Further optimize: on vehicle frame, be provided with counter-base; The collar and inner tube are movable connection method, and inner tube realizes moving up and down and rotating in the collar.

Further optimize: be provided with side wheel on the support of trailing wheel.

Further optimize: the cross sill of vehicle frame comprises the left and right crossbeam, between the crossbeam of left and right, active connection is arranged, and when folding, active connection moves down.

The beneficial effects of the utility model are: overcome the weak point of product in the past, additional design does not increase too many weight, just can realize more new purposes, to the user, bring more convenience, in addition, the utility model folding mode does not change, and the volume after still making to fold keeps within the acceptable range, can put into equally bag and be easy to carry.

The accompanying drawing explanation

Structural representation when Fig. 1 is the full expand of the utility model embodiment.

Fig. 2 is the structural representation at another visual angle of Fig. 1.

Fig. 3 is the structural representation while entirely folding.

Fig. 4 is the structural representation at another visual angle of Fig. 3.

Structural representation when Fig. 5 is folding, handle proposed.

Fig. 6 is the structural representation at another visual angle of Fig. 5.

The specific embodiment

Embodiment:

The agent structure of this product, folding mode and locking mode can be referring to ZL 200510073039.7, ZL 200520107711.5, and we describe emphatically the mode of newly-increased parts and use at following length:

When full expand:

Certainly, can ride normally, on drive assembly 1, extend shaft 2, a chainlet dish 14 is arranged on axle 2; Simultaneously, on vehicle frame 3, be provided with big chain plate 4, between big chain plate 4 and chainlet dish 14, have chain 15 to rotate.On big chain plate 4, be provided with foot-operated 16.

Iff being such setting, whole stressed member lacks enough strength and stabilities, in order to address this problem, we are provided with one and strengthen connecting rod 21, for being connected and fixed axle sleeve 20 at vehicle frame 3, thereby make big chain plate 4, chainlet dish 14, strengthen connecting rod 21 formations triangle, very a firm stable.

Such set-up mode, make bicyclist's placement of foot forward, more comfortable during motion, namely more meets human body journey mechanics principle of design, and improved riding speed.

Above design is in fact to have increased a drive connection, purpose be by pin put forth effort the position reach, the bicyclist is had ride the sensation of bull wheel ordinary bicycle.And the form increased like this can't have obstruction to whole folding mode.

During complete folding:

Counter-base 5 is in the position of level, and a seat can be provided, and this function is quite practical, is no matter waiting or during rest, all be equivalent to carry individual moved seat.The foot rest 6 on two sides is supported in addition, just can be more stable take.

We also can understand easily, can bear weight on counter-base 5, play the effect of support.

During handle 7:

Product in the past, after complete folding, integral body is shorter, can only carry while carrying, and this just makes the user must bear the total weight of bicycle, and such load, for physical gastrointestinal disease patient, still can not accept.

Our design is: removed the fixed relationship of the original collar 8 and inner tube 9, become movable connection method: namely inner tube 9 can be slided at the interior easy on and off of the collar 8.

After complete folding, up handle 7, drive on inner tube 9 and move (collar does not move).As shown in Figure 5, Figure 6.

Like this, can execute thrust in handle 7 with hand, allow front-wheel 11 and trailing wheel 12 rotate, bicycle integral body is pushed, not at all effort.

Also can be by integral inclination, side wheel 13 contacts to earth, then rotates inner tube 9, makes front-wheel 11 and side wheel 13 be in same direction, pulls integral body, and front-wheel 11 and side wheel 13, in ground surface, play just as pulling the effect of baggage rack.

When on counter-base 5, weight being arranged, promote or pull all have more practical meaning, namely can be used as baggage car and use.

As the inner tube 9 locking mode with the collar 8: on inner tube 9, be provided with lock pin 22, lock pin 22 is in the state of stretching out at ordinary times under the contained spring effect, and during the collar 8 end contact, can stop and slide up and down, and reaches the purpose of location.During release: lock pin 22 is pressed to (overcoming contained spring), make lock pin 22 enter the collar 8 inwalls.

Because we have increased some parts, when folding, taken the upper space in vehicle frame 3, the crossbeam of the former bicycle folding mode that makes progress just has been not suitable for, in the utility model, left crossbeam 30 is connected by attaching parts 32 with right crossbeam 31, and Full-expasion is in stationary state.When folding, attaching parts 32 moves down, and left crossbeam 30 and right crossbeam 31 are progressively drawn close the lower space taken in vehicle frame 3, in fact just allows out upper space to take for the parts that increase.

Claims

1. multi-purpose folding bicycle, comprise vehicle frame, front-wheel, trailing wheel and drive assembly, it is characterized in that: on the vehicle frame before drive assembly, be provided with a sprocket wheel, between sprocket wheel and drive assembly, chain arranged, sprocket wheel is driven by foot-operated; Between the axle sleeve of sprocket wheel and vehicle frame, be provided with the reinforcement connecting rod; On vehicle frame, be provided with counter-base; On the support of trailing wheel, be provided with side wheel; The cross sill of vehicle frame comprises the left and right crossbeam, between the crossbeam of left and right, active connection is arranged, and when folding, active connection moves down.