CN203601517U

CN203601517U - Bicycle

Info

Publication number: CN203601517U
Application number: CN201320672926.6U
Authority: CN
Inventors: 郭彩芬; 董志; 杜建红; 李洪伟; 万长东
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2013-10-29
Filing date: 2013-10-29
Publication date: 2014-05-21
Anticipated expiration: 2023-10-29

Abstract

The utility model discloses a bicycle, and relates to the field of transportation means. The bicycle comprises a front wheel, a rear wheel and a bicycle body framework. A pedal plate is arranged on the front wheel, and the pedal plate is connected with the front wheel through a transmission unit. The transmission unit comprises a ratchet wheel, a center wheel, a planetary frame and a sun gear. The ratchet wheel is used for preventing the front wheel from moving in the reverse direction. The center wheel, the planetary frame and the sun gear are used for enabling the pedal plate to transmit torque to the front wheel. The front wheel and the rear wheel are arranged at the front end of the bicycle body frame and the rear end of the bicycle body frame respectively. A planet gear mechanism is adopted in the bicycle for transmitting power. Compared with the prior art, the bicycle has the advantages of being high in transmission ratio and not prone to disengaging. After the large rear wheel is adopted, a part of vibration caused due to the fact that a road is uneven can be weakened, an arranged support spring is used for damping the vibration, and the comfort during driving is effectively improved. The small front wheel is used so that the situation that steering is insufficient can be effectively improved.

Description

A kind of bicycle

Technical field

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

Background technology

Low-carbon environment-friendly has become the theme of people life style gradually, and aspect trip, due to the improvement of road conditions, the advantage that bicycle is light highlights just gradually.But bicycle in the past exists the low and lasting use of speed and causes the too stiff defect of waist muscle, and that existing recumbent bicycle exists sight line is lower, and while turning to, direction is difficult for the problem of holding, and is difficult to promote better.

Summary of the invention

The technical problems to be solved in the utility model is how to solve uncomfortable problem after the low and long-time use of existing bicycle speed.

For solving the problems of the technologies described above, the utility model provides a kind of bicycle, comprise: front-wheel, trailing wheel and body framwork, described front-wheel is provided with pedal, between described pedal and described front-wheel, be connected by gear unit, described gear unit comprises: ratchet, center gear, pinion carrier, sun wheel, and described ratchet is used for preventing described front-wheel reversing sense motion, described center gear, pinion carrier, sun wheel are used for described pedal to described front-wheel carry-over moment; Described front-wheel and described trailing wheel are located at respectively the rear and front end of described body framwork.

Preferably, described bicycle also comprises dependence plate, and described dependence plate is positioned on described body framwork, and is 60 ° ~ 80 ° angles with ground.

Preferably, described rear wheel diameter is greater than front-wheel.

Preferably, described trailing wheel is connected by guide pipe with described body framwork, and described guide pipe is provided with damping spring.

Bicycle of the present utility model adopts planetary wheeling mechanism to carry out transferring power, compared with in the past, has transmitting ratio large, the advantage of difficult drop-off.Adopt large trailing wheel, contribute to weaken the part vibrations that cause because road is uneven, the effect of vibration being played damping of stand spring is set, effectively improve the traveling comfort while driving.Select little front-wheel, can effectively improve the situation of understeer.

Accompanying drawing explanation

Fig. 1 is the structural representation of bicycle of the present utility model.

Fig. 2 is the cutaway view of the front-wheel of the bicycle in Fig. 1.

Fig. 3 is the lateral plan of the gear unit of the bicycle in Fig. 1.

Fig. 4 is the lateral plan of the ratchet of the bicycle in Fig. 1.

The specific embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.

The specific embodiment of bicycle of the present utility model as shown in Figures 1 to 4, comprise: front-wheel 1, trailing wheel 2 and body framwork 3, front-wheel 1 is provided with pedal 4, between pedal 4 and front-wheel 1, be connected by gear unit, gear unit comprises: ratchet 5, center gear 6, pinion carrier 7, sun wheel 8, ratchet 5 is for preventing front-wheel 1 reversing sense motion, center gear 6, pinion carrier 7, sun wheel 8 for pedal 4 to front-wheel 1 carry-over moment, by changing the ratio of sun wheel 8 and center gear 6 numbers of teeth, can change the transmitting ratio of mechanism.For frequent use and require fast crowd, can select the class that ratio of number of teeth is larger, and for leisure population, choose the class that ratio is less comparatively applicable.

Front-wheel 1 and trailing wheel 2 are located at respectively the rear and front end of body framwork 3, and trailing wheel 2 diameters are greater than front-wheel 1.Trailing wheel 2 is connected by guide pipe 9 with

body framwork

3, and 9 guide pipes are provided with damping spring 10.

For more comfortable by bike time, bicycle also comprises dependence plate 11, leans on plate 11 and is positioned on body framwork 3, and be 60 ° ~ 80 ° angles with ground, and rider can rely on and lean on plate 11 in the time of automobile, alleviates muscular fatigue.

Above embodiment is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.

Claims

1. a bicycle, it is characterized in that, comprise: front-wheel, trailing wheel and body framwork, described front-wheel is provided with pedal, between described pedal and described front-wheel, be connected by gear unit, described gear unit comprises: ratchet, center gear, pinion carrier, sun wheel, and described ratchet is used for preventing described front-wheel reversing sense motion, described center gear, pinion carrier, sun wheel are used for described pedal to described front-wheel carry-over moment; Described front-wheel and described trailing wheel are located at respectively the rear and front end of described body framwork.

2. bicycle as claimed in claim 1, is characterized in that, described bicycle also comprises dependence plate, and described dependence plate is positioned on described body framwork, and is 60 ° ~ 80 ° angles with ground.

3. bicycle as claimed in claim 1, is characterized in that, described rear wheel diameter is greater than front-wheel.

4. bicycle as claimed in claim 1, is characterized in that, described trailing wheel is connected by guide pipe with described body framwork, and described guide pipe is provided with damping spring.