CN2069382U

CN2069382U - Multistage speed-changing bicycle with double swinging link and wire rope drive

Info

Publication number: CN2069382U
Application number: CN90212851U
Authority: CN
Inventors: 何达齐
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-10
Filing date: 1990-05-10
Publication date: 1991-01-16

Abstract

The utility model relates to a multistage speed-changing bicycle, which is driven by double swing link and a steel cable. The actuating mechanism part of the existing bicycle is reformed, and the reformed actuating mechanism part is composed of two swing links, a steel cable, a moving stand, a pulley, a rolled rope flywheel, etc. The utility model can achieve that the rotating speed of wheels can be changed in a multistage way, because a lever principle is adopted in the new actuating mechanism part, the utility model overcomes the deficiencies that a diamond frame centre shaft exists but an axial force is big in prior art, the utilization direction of force is linear motion which takes the place of the original circular motion, and therefore, the labor saving purpose is reached.

Description

Multistage speed-changing bicycle with double swinging link and wire rope drive

The utility model is the bicycle of a kind of double pendulum bar, steel rope transmission multi-change speed, is that present transmission mechanism of bicycle is partly reformed.

The bicycle of types such as the Phoenix brand bicycle that generally uses in that existing market is sold, the society, Flying Pigeon brand bicycle, five sheep board bicycles, its running part is made up of parts such as foot-operated, crank, axis, chain drum, chain and flywheels.Its weak point is that the speed change class is few, and because of the vehicle frame major part is that rhombus exists axis, and be subjected to axial force to use effort greatly.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of bicycle of reforming running part is provided.

The purpose of this utility model is to reach by following measure: the running part that parts such as the axis in the existing bicycle, bent axle, chain drum, chain are formed is cancelled, the running part of forming with parts such as fork, steel rope tressel, pulley and elevator flywheels replaces, tressel moves arbitrarily on fork, can obtain multistage adjustable speed-changing; New transmission mechanism adopts lever principle, and the service orientation of power is a moving linearly, and the service orientation that has replaced past power is to make garden Zhou Yundong, reaches and uses the labour-saving purpose.

The drawing of accompanying drawing is described as follows:

Accompanying drawing is the symmetrical left side structure of this double pendulum bar, steel rope transmission multi-change speed bicycle.

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

Form by front vehicle wheel (1), handlebar (2), vehicle frame (3), seat bag (4), rear wheel (5), back plate (6), pulley (7), movable pulley (8), elevator flywheel (9), steel rope (10), adjustable rod (11), adjusting bracket (12), steel rope (13), foot-operated (14), tressel (15), fork (16), active pull rod (17), multiple bar (18) with reference to this double pendulum of accompanying drawing bar, steel rope transmission, multi-change speed bicycle.

Back plate (6) is welded on vehicle frame top, with the bearing screw rod pulley (7) is fixed on the back plate (6), about rear wheel (5) axle skin, screw on serving flywheel (9), multiple bar (18) is located end and is connected on the flywheel with rivet, the inner end is fixed in the groove of wheel shaft one nut, fork (16) front end screws on foot-operated (14), the rear end is assemblied in the rear lower of vehicle frame (3) with bearing and axle, make the shape of the many breach of sawtooth garden shape below the fork, tressel (15) can move arbitrarily in the middle of fork (16), load onto pory active pull rod (17) at the rear portion of fork (16), the movable control bar other end is stabilized on the vehicle frame (3) with pin, loads onto movable pulley (8) on vehicle frame (3) top.

Steel rope (13) is fixed on the serving flywheel (9), connects with tressel (15) by pulley (7), and tressel (15) can be gone up arbitrarily at fork (16) and move, and has so just constituted novel driving system and transmission system.

Steel rope (10) connects with adjustable rod by movable pulley (8), and is connected into the adjustable linked system of steel rope with the fork rear portion.Also adjusting yoke can be changed short tension spring steel rope elasticity associating linked system, also adjusting yoke can be changed long tension spring the elasticity starting.

Characteristics of the present utility model: the one, the reform running part has realized that speed change is multistage adjustable; The 2nd, adopt bar thick stick principle, overcome in the prior art, the vehicle frame axis of rhombus exists and is subjected to the big weak point of axial force, makes direction firmly change present straight-line direction into all travels direction in original garden, reaches laborsaving purpose.

Do the time spent when power from the left side during operation, act on foot-operated (14), fork (16) has passed through tressel (15), steel rope (13), pulley (7), serving flywheel (9) toward the power of the bottom, and rear wheel (5) rolls forward under the pulling of steel rope.In the bottom, passed through adjustable rod (11), steel rope (10), movable pulley (8) at fork (16), driven the right adjustable rod, fork, right fork is toward forward swing.Same reason, power is done the time spent from the right, also drives rear wheel (5) and rolls forward, and so repeatedly, rear wheel (5) just constantly rolls forward, and drives bicycle and advances.

Claims

A kind of by front vehicle wheel (1), handlebar (2), vehicle frame (3), seat bag (4), rear wheel (5), the double pendulum bar that foot-operated (14) are formed, steel rope transmission multi-change speed bicycle, it is characterized in that running part is by back plate (6), pulley (7), movable pulley (8), elevator flywheel (9), steel rope (10), adjustable rod (11), adjusting bracket (12), steel rope (13), tressel (15), fork (16), active pull rod (17), multiple bar (18) is formed, back plate (6) is welded on the top of vehicle frame (3), pulley (7) is contained on the back plate (6), about rear wheel (5) axle skin, screw on serving flywheel (9), multiple bar (18) is located to terminate on the flywheel, the inner end is solid in the groove of axle nut, fork (16) front end screws on foot-operated (14), the rear end is assemblied in the rear lower of vehicle frame (3), tressel can move arbitrarily in the middle of fork (16), load onto pory active pull rod (17) at the rear portion of fork (16), active pull rod (17) other end is installed on the vehicle frame (3), load onto movable pulley (8) on vehicle frame (3) top, serving flywheel (9) is contained on the axle skin of rear wheel (5).