CN2496745Y

CN2496745Y - Bicycle

Info

Publication number: CN2496745Y
Application number: CN 01262077
Authority: CN
Inventors: 赵俊义
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-30
Filing date: 2001-09-30
Publication date: 2002-06-26
Anticipated expiration: 2011-09-30

Abstract

The utility model discloses a bicycle, which comprises a frame, wheels, a rear turntable, a rear flywheel, a foot pedal, a chain, a saddle and a front frame. The utility model is characterized in that a sprocket wheel is arranged at the top end of the front frame; a brace is fixed on the sprocket wheel; one flywheel is fixed on the axis of the front wheel; the flywheel is arranged the same side with the sprocket wheel; the sprocket wheel and the flywheel drive through the connection of the chain. The utility model has the advantages of two-wheel drive, strengthened driving force, fast speed, good effect of body building, and wide range of application, and being the updating product of the present bicycle.

Description

A kind of bicycle

The utility model belongs to technical field of bicycles, especially relates to a kind of two-wheel bicycle driven.

At present, the bicycle of usefulness that we ride mostly is single wheel drive, though variable speed bicycle has appearred now, but still be single wheel drive, the bicycle of single wheel drive is as traffic, fitness tool, basically can satisfy our needs, but, be the following componental movement of health waist when riding owing to be single wheel drive, obtain taking exercise, the driving force for bicycles deficiency of while single wheel drive, speed is unhappy, and this has just influenced the Applicable scope of bicycle.

The purpose of this utility model be to improve the deficiency of prior art and provide a kind of two-wheel to drive, increased propulsive effort, speed is fast, body-building effect good, bicycle applied widely.

The purpose of this utility model is to realize like this, a kind of bicycle, form by vehicle frame, wheel, rear trochal disc, rear flywheel, pedal, chain, vehicle seat and front vehicle frame, be characterized in being provided with sprocket wheel in the upper end of front vehicle frame, be fixed with crank on the sprocket wheel, be fixed with a flywheel on the axle of front vehicle wheel, flywheel and sprocket wheel are in the same side, and sprocket wheel is connected transmission with flywheel by chain.

In order further to realize the purpose of this utility model, can also be that movable sleeve has grip on described crank.

Compared with the prior art the utility model has following distinguishing feature and good effect: on the basis of existing bicycle, upper end in front vehicle frame is provided with sprocket wheel, be fixed with crank on the sprocket wheel, on the axle of front vehicle wheel, be fixed with flywheel, flywheel and sprocket wheel are in the same side, sprocket wheel is connected transmission with flywheel by chain, just can drive sprocket rotation by shaking crank, sprocket wheel drives flywheel by chain and front vehicle wheel rotates, so just on the basis of original driving, increased a propulsive effort, improved the carrying capacity and the speed of bicycle, simultaneously owing to be that arm drives, make cyclist's upper body obtain taking exercise, reach the purpose of body-building.

The concrete structure of a kind of bicycle of the utility model is provided by the following drawings and embodiment.

Fig. 1 is the structural representation of a kind of bicycle of the utility model.

Fig. 2 is an another kind of structural representation of the present utility model.

Below in conjunction with drawings and Examples a kind of bicycle of the utility model is described in further detail.

Embodiment 1, with reference to Fig. 1, a kind of bicycle, be on vehicle frame 1, to be fixed with vehicle seat 6 and rear wheel 2, be provided with rear trochal disc 3 in the lower end of vehicle frame 1, be fixed with pedal 13 on the rear trochal disc 3, rear trochal disc 3 is connected transmission by chain 5 with rear flywheel 4 on the rear wheel 2, and rear flywheel 4 has brake, and the front end of vehicle frame 1 is fixed with front vehicle frame 7, the bottom of front vehicle frame 7 is provided with front vehicle wheel 2, front vehicle wheel 2 is provided with flywheel 10, and the upper end activity of front vehicle frame 7 is fixed with sprocket wheel 8, is fixed with crank 9 on the sprocket wheel 8, sprocket wheel 8 is connected transmission with flywheel 10 in the same side and by chain 11, and this has constituted a kind of static structure of the present utility model.

Embodiment 2, and with reference to Fig. 2, a kind of bicycle is on the basis of embodiment 1, is with grip 12 on crank 9, and other are identical with embodiment 1.

The utility model can drive the front-wheel motion and drive back-wheel drive by pedal by shaking crank, increase propulsive effort, improve the carrying capacity and the speed of bicycle, the use arm drives, both hands, both feet are moved simultaneously, thereby drive each position motion of whole body, make whole body obtain taking exercise, reach the body-building purpose.

Claims

1, a kind of bicycle, form by vehicle frame (1), wheel (2), rear trochal disc (3), rear flywheel (4), pedal (13), chain (5), vehicle seat (6) and front vehicle frame (7), it is characterized in that being provided with sprocket wheel (8) in the upper end of front vehicle frame (7), be fixed with crank (9) on the sprocket wheel (8), on the axle of front vehicle wheel (5), be fixed with a flywheel (10), flywheel (10) and sprocket wheel (8) are in the same side, and sprocket wheel (8) is connected transmission with flywheel (10) by chain (11).

2, a kind of bicycle according to claim 1 is characterized in that going up movable sleeve at described crank (9) has grip (12).