CN2099719U

CN2099719U - Bicycle

Info

Publication number: CN2099719U
Application number: CN91221602U
Authority: CN
Inventors: 阎清宝
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-29
Filing date: 1991-08-29
Publication date: 1992-03-25

Abstract

The utility model discloses a bicycle, which is a vehicle regularly used by people. A flywheel is driven by the up-and-down rectilinear movement of two sliders to replace a chain. The utility model overcomes the defects that speed can not be changed and a rider takes great effort to pedal. Two control levers provided with pedals are adopted to make reciprocating arc motion, a steel cable is wound on a rope sheave through a pulley, and the rope sheave and the rear wheel of the bicycle are connected integrally. When the control levers make reciprocating motion, a steel cable drags the rope sheave to make positive direction movement, the rope sheave is provided with a return spring making reversing rotation. At the time of raising foot, the rope sheave slews by the return spring and rolls the steel cable, and speed-changing devices are arranged on the control levers, controlled by a speed change handle. The utility model has the advantages of easy speed changing, labor saving at the time of pedaling, strong slope climbing capacity, simple structure, and being adapted to people of different heights.

Description

Bicycle

The utility model is people's vehicle used in everyday.

It is that straight-line motion up and down by two slide blocks drives flywheel and replaces chain bicycle that the utility model of domestic applications at present makes things convenient for bicycle (application number 85203848), and the defective that the bicycle of this structure exists is: can not speed change require great effort again.

The purpose of this utility model is for a kind of bicycle, and it can not only the fast jogging speed of conversion, and pedals laborsaving.

Realize that scheme of the present utility model is such: by front-wheel 17, trailing wheel 14, handlebar 2, vehicle frame 3, vehicle seat 5 formations such as grade, it is characterized in that: crotch 15 both sides that connect trailing wheel 14 are installed with respectively rides 9 control stalk 16 having of can swinging up and down, the steel rope 11 of restriction control stalk 16 bottom positions is crossed the pulley 4 that is installed on vehicle frame 3 crossbeams and is joined respectively at two control stalks 16, on the axle of trailing wheel 14 rope sheave 13 that has pull back spring is installed, around and the steel rope 12 that drives rope sheave 13 cross the movably pulley 8 of pulley 6 on control stalk 16 that is installed on vehicle frame 3 crossbeams and connect, the pulley of taking back a spring 7 and pulley 18 that the steel rope 12 on the speed change handgrip 1 on the handlebar 2 is crossed on the control stalks 16 are connected on the pulley 8.

Also having a feature is to be equipped with on the control stalk 16 by the pulley 7 of fixed position and the pulley 18 of fixed position, and the transmission system that constitutes of transportable pulley 8, steel rope 19, and the steel rope 12 that drives trailing wheel 14 rotations is crossed pulley 6 and is connected on the pulley 8.Thereby the displacement of pulley 8 has changed the crank motion radian of control stalk 16 just reaches the purpose that change connects speed.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1, Fig. 2 are structural representations of the present utility model.

Fig. 3 is the constructional drawing of control stalk and transmission system.

Among Fig. 1, among Fig. 3,1 speed change handgrip, 2 handlebars, 3 crossbeams, 4 pulleys, 5 vehicle seats, 6 pulleys 7 are taken back pulley 8 pulleys 9 of a spring and are ridden rope sheave 14 trailing wheels 15 crotch 16 control stalks 17 front-wheels 18 pulleys 19 steel ropes that 10 steel ropes, 11 steel ropes, 12 steel ropes 13 are taken back a spring

From the embodiment and structural representation of Fig. 1, Fig. 3, crotch 15 both sides that connect trailing wheel 14 have two control stalks 16 of making the reciprocating band of arc foot-operated 9 respectively, the pulley 4 that steel rope 11 is crossed on vehicle frame 3 crossbeams connects two control stalks 16, the axle both sides of trailing wheel 14 are installed with the rope sheave 13 that has pull back spring, fuse with trailing wheel 14, steel rope 12 gets final product around top 2～5 circles.Control stalk 16 is made the arc crank motion in the time of by bike, steel rope 11 can limit control stalk 16, the moment of realizing application force is constant basically, pedal one and lift another, when lifting pin, rope sheave 13 is realized reversing under the effect of pull back spring and is rolled steel rope 12 simultaneously simultaneously, also gives 16 1 auxiliary forces of control stalk upwards, so very laborsaving.When pedaling downwards, steel rope 12 tractive rope sheaves 13 rotate, and drive trailing wheel 14 rotations simultaneously and realize walking when foot-operated.The transportable pulley 8 of pulley 6 on control stalk 16 that the steel rope 12 of tractive rope sheave 13 is crossed on the crossbeam connects, steel rope 10 on the speed change handgrip 1 on the handlebar 2 crosses pulley 7 and pulley 18 is connected on the pulley 8, pulley 8 also has steel rope 19 to be connected with the pulley 7 of taking back a spring, when speed change, rotate handgrip 1, steel rope pulling pulley 8, just change the radian of control stalk 16 after pulley 8 running fixes, thereby realized speed change.

On the control stalk 16 transmission system that constitutes by the pulley 7 of taking back a spring, pulley 8, pulley 18 and steel rope 19, by speed change handgrip 1 control, can self-locking after speed change handgrip 1 will be designed to rotate.

The utility model is when making woman style car, and pulley 4, pulley 6 are installed on the crossbeam of front-wheel 17 and the vehicle frame 3 that is connected rear wheel 14 or on the diagonal brace of band vehicle seat 15.

The defective that the utility model has overcome prior art has realized goal of the invention, its advantage:

1, easy speed change, slewing range is big, and effect is obvious.

2, strong, the leicht fallen D/A of the climbing capacity of movement velocity.

3, back and forth distance is adjustable for pedal, is fit to the people of differing heights.

4, two control stalks can mutually noninterfere to the effect of trailing wheel, and control stalk can automatically reset with pin, is suitable for handicapped single leg and walks by bike.

5, manufacturing process is simple, and the life-span is long, and cost is low, and is easy to maintenance.

Claims

1, a kind of bicycle, by front-wheel 17, trailing wheel 14, handlebar 2, vehicle frame 3, vehicle seat 5 formations such as grade, it is characterized in that: crotch 15 both sides that connect trailing wheel 14 are installed with respectively rides 9 control stalk 16 having of can swinging up and down, the steel rope 11 of restriction control stalk pivot angle about in the of 16 is crossed the pulley 4 that is installed on vehicle frame 3 crossbeams and is joined respectively at two control stalks 16, on the axle of trailing wheel 15 rope sheave 13 that has pull back spring is installed, around and the steel rope 12 that drives rope sheave 13 cross the movably pulley 8 of pulley 6 on control stalk 16 that is installed on vehicle frame 3 crossbeams and connect, the pulley of taking back a spring 7 and pulley 18 that the steel rope 10 on the speed change handgrip 1 on the handlebar 2 is crossed on the control stalks 16 are connected on the pulley 8.

2, a kind of bicycle according to claim 1 is characterized in that: described foot-operated 9 the control stalk 16 of having is the transmission systems that are made of the pulley 7 of taking back a spring and pulley 18, pulley 8, steel rope 19.