CN202029961U

CN202029961U - Convenient folding bicycle

Info

Publication number: CN202029961U
Application number: CN2011200700922U
Authority: CN
Inventors: 于治勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-11-09
Anticipated expiration: 2021-03-17

Abstract

The utility model discloses a convenient folding bicycle. The folding bicycle comprises a front wheel, a bicycle handlebar, a saddle, a crank chain wheel, a rear wheel and a folding bicycle frame, wherein the folding bicycle frame comprises a front cross member, a rear cross member, a front pipe, a connecting rod, a saddle pipe and a cross member fastening device; the front end of the front cross member is hinged with the front pipe through a front pipe upper rotating shaft; the rear end of the front cross member is hinged with the rear cross member through a rear cross member front rotating shaft; the front end of the connecting rod is hinged with the front pipe through a front pipe lower rotating shaft; the rear end of the connecting rod is hinged with the rear cross member through a rear cross member lower rotating shaft; the front part of the saddle pipe is welded with a saddle pipe front supporting rod; the rear part of the saddle pipe is welded with a saddle pipe rear supporting rod; the lower part of the saddle pipe is welded with the rear cross member; the crank chain wheel is arranged at the middle lower part of the rear cross member; and the cross member fastening device is arranged at the upper part at the front end of the rear cross member. The folding bicycle has the benefits that the design of the new structure is simple; the processing and the manufacturing are easy; and when the folding bicycle is folded, the weight is light, the size is small, and the carrying is convenient.

Description

Convenient folding bicycle

Technical field

The utility model relates to a kind of bicycle, particularly a kind of convenient folding bicycle.

Background technology

Along with the development of society, bicycle is not at the vehicle that are main flow, and leisureization, lighting are its developing direction, on the short distance that much is used in people is ridden instead of walk and lain fallow and takes exercise.This just requires bicycle that lightweight should be arranged, is convenient to folding characteristics of carrying, yet existing folding bicycle is subjected to the restriction of folding mode, and tire is bigger, and folding very inconvenient, volume after folding is bigger than normal, carries very inconvenient.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of folding operation convenient, folding back folding bicycle easy to carry.

The utility model is achieved in that a kind of convenient folding bicycle, comprise front-wheel, handlebar, saddle, crank and chain-wheel, trailing wheel and folding stand, described folding stand is by front cross rail, after cross member, preceding pipe, pipe link, seatpillar and crossbeam securing device are formed, described front cross rail front end is hinged by rotating shaft on the preceding pipe and preceding pipe, the rear end is hinged by after cross member front rotary shaft and after cross member, described pipe link front end is hinged by preceding pipe lower rotary shaft and preceding pipe, the rear end is hinged by after cross member lower rotary shaft and after cross member, described seatpillar is anterior to be welded with the seatpillar front support rod, rear portion and the welding of seatpillar back support rod, bottom and after cross member welding, described crank and chain-wheel is arranged on the after cross member middle and lower part, and described crossbeam securing device is arranged on the after cross member upper front end.

The beneficial effects of the utility model are: not only overcome existing folding bicycle and fold shortcoming time-consuming, effort, and also the new construction simplicity of design, being easy to processing and manufacturing, folding back is in light weight, volume is little, is easy to carry.

Description of drawings

Fig. 1 is that the convenient folding bicycle of the utility model launches scheme drawing;

Fig. 2 carries out scheme drawing for behind the utility model portable folding bicycle folding.

Below be described further:

1, handlebar; 2, rotating shaft on the preceding pipe; 3, front cross rail; 4, crossbeam securing device; 5, seatpillar front support rod; 6, after cross member; 7, saddle; 8, seatpillar quick detach; 9, seatpillar; 10, seatpillar back support rod; 11, trailing wheel; 12, crank and chain-wheel; 13, after cross member lower rotary shaft; 14, after cross member front rotary shaft; 15, pipe link; 16, front-wheel; 17, preceding pipe lower rotary shaft; 18, preceding pipe; 19, handlebar folder.

The specific embodiment

As Fig. 1, shown in Figure 2: a kind of convenient folding bicycle, comprise front-wheel 16, handlebar 1, saddle 7, crank and chain-wheel 12, trailing wheel 11 and folding stand, described folding stand is by front cross rail 3, after cross member 6, preceding pipe 18, pipe link 15, seatpillar 9 and crossbeam securing device 4 are formed, described front cross rail 3 front ends are hinged by rotating shaft on the preceding pipe 2 and preceding pipe 18, the rear end is hinged by after cross member front rotary shaft 14 and after cross member 6, described pipe link 15 front ends are hinged by preceding pipe lower rotary shaft 17 and preceding pipe 18, the rear end is hinged by after cross member lower rotary shaft 13 and after cross member 6, described seatpillar 9 anterior and seatpillar front support rod 5 welding, rear portion and 10 welding of seatpillar back support rod, bottom and after cross member 6 welding, described crank and chain-wheel 12 is arranged on after cross member 6 middle and lower parts, and described crossbeam securing device 4 is arranged on after cross member 6 upper front end.

When packing up, open crossbeam securing device 4, upwards mention seatpillar front support rod 5, front cross rail 3, pipe link 15 and preceding pipe 18 related rotations, front-wheel 16 and trailing wheel 11 close up naturally, open seatpillar quick detach 8, pack up saddle 7, and convenient folding bicycle can be carried out.

Claims

1. convenient folding bicycle, comprise front-wheel, handlebar, saddle, crank and chain-wheel, trailing wheel and folding stand, described folding stand is by front cross rail (3), after cross member (6), preceding pipe (18), pipe link (15), seatpillar (9) and crossbeam securing device (4) are formed, it is characterized in that: described front cross rail (3) front end is hinged by rotating shaft on the preceding pipe (2) and preceding pipe (18), the rear end is hinged by after cross member front rotary shaft (14) and after cross member (6), described pipe link (15) front end is hinged by preceding pipe lower rotary shaft (17) and preceding pipe (18), the rear end is hinged by after cross member lower rotary shaft (13) and after cross member (6), described seatpillar (9) is anterior to be welded with seatpillar front support rod (5), rear portion and seatpillar back support rod (10) welding, bottom and after cross member (6) welding, described crank and chain-wheel (12) is arranged on after cross member (6) middle and lower part, and described crossbeam securing device (4) is arranged on after cross member (6) upper front end.