CN200967531Y

CN200967531Y - Step-up device and labor-saving tricycle

Info

Publication number: CN200967531Y
Application number: CNU2006200313134U
Authority: CN
Inventors: 邵国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-27
Filing date: 2006-03-27
Publication date: 2007-10-31
Anticipated expiration: 2016-03-27

Abstract

This invention relates to a power-increase device and a labor-saving tricycle. The power-increase device contains two levers, two ratchet wheels, a wheel gearing structure and a lever linkage resetting structure. Two levers and two ratchet wheels are divided into two groups and installed in the right and left end of the same shaft; the wheel gearing structure is a pair of wheels, containing an input wheel, an output wheel and a shift clutch wheel. The lever linkage resetting structure has a top pulley and chains. The labor-saving tricycle contains a vehicle frame, a handlebar, wheels, a car copper, a chassis, a pedal, a fly wheel and the power-increase device. The utility model is force saving and has a stable gearing performance, conducive to the popularization.

Description

Step-up system and force-saving tricycle thereof

One, technical field: the utility model relates to a kind of manpower transportation, particularly relates to a kind of step-up system and force-saving tricycle thereof.

Two, back of the body border technology: at present, though people's life is about to enter auto age, but manual tricycle is with its environmental protection, flexibly etc. plurality of advantages still has its market, but manual tricycle ubiquity resistance is big, the phenomenon that difficulty is pedaled, also there are many people doing the research of this respect, some solutions are proposed, as Chinese patent application number is that 9624758.8 utility model proposes lever boosting mechanism, adopt lever force-saving, substantially can reach the labour-saving purpose, but it does not consider the reversing of three-wheel vehicle, and when three-wheel vehicle is moveed backward, the small flywheel on the rear axle will drive chain and rotate with chain institute bonded assembly parts, its lever also will rotate around rear axle like this, be incomplete from its technical scheme of its structure.

Three, utility model content: at above problem, the utility model openly can overcome a kind of step-up system and the force-saving tricycle thereof of above problem.

The technical solution of the utility model is: a kind of step-up system, contain two levers, two ratchets, gear drive, lever interlock Bringing-back mechanism:

(1) two lever, two ratchets divide two groups to be installed in upward two ends, the left and right sides of same axle, two levers and axle are for being rotationally connected, two ratchets with the axle for captiveing joint, on lever, be the column cavity with the ratchet approach end, inside is provided with the wedge driving lever that an afterbody has spring, the wedge shaped of this driving lever and ratchet profile of tooth coupling, and two levers are by this wedge driving lever driving pawl, be fixed with a gear at this middle part, this gear connects transmission device and spreads out of rotation;

(2) gear drive is one group of gear pair, contain input gear, output gear, the conversion clutch gear, the anchor shaft of this gear pair input, output gear green phase coupling is installed in the box bilateral wall, this input gear is a gear described in the heading, input, output gear cooperate, connect by the conversion clutch gear, the conversion clutch gear be centered close to input, below the output gear line of centres, its two ends are positioned on the box bilateral wall arc chute with its coupling, and this arc chute is the center of circle with the input shaft;

(3) lever interlock Bringing-back mechanism contains fixed pulley, and rope, fixed pulley are fixed in lever middle upper portion certain position, and rope ends is walked around fixed pulley and connected two levers respectively, and two levers form reciprocating mechanism one on the other.

Described gear drive is one to have cylindrical wheel two speed transmissions of neutral, and this change-speed box contains input shaft, output shaft, gearshift axle, and input shaft is the axle described in the above-mentioned first item.

A kind of force-saving tricycle contains vehicle frame, handlebar, wheel, wagon box, vehicle seat, stretcher, flywheel, step-up system, and this step-up system contains two levers, two ratchets, gear drive, lever interlock Bringing-back mechanism:

The gear drive of described step-up system is one to have cylindrical wheel two speed transmissions of neutral, and this change-speed box contains input shaft, output shaft, gearshift axle, and input shaft is the axle described in the above-mentioned first item.

The gear drive of described step-up system is positioned on the vehicle frame of wagon box bottom, and the part of the output shaft of gear drive outside casing is equipped with a sprocket wheel, and this sprocket wheel is connected with flywheel on the rear vehicle shaft by chain, realizes chain-driving.

The front end of two levers of described step-up system is equipped with two pedals, and the fixed pulley of lever interlock Bringing-back mechanism is located under the vehicle seat, or is located on the crossbeam of vehicle frame.

Beneficial effect:

1, can be laborsaving, alleviate cyclist's labour intensity.

Owing to adopt lever principle, and lever only about horizontal surface among a small circle in swing, lever is in the longest position of the arm of force all the time, compares with the treadle that moved in a circle in the past, laborsaving is conspicuous.

2, stable drive, long service life.

Adopt the both sides lever to stir ratchet, and two levers realize resetting of lever by a rope, though the motion of two levers is intermittent, the motion of ratchet is continuous, can not impact to ratchet, transmission device, and stable drive.

Four, description of drawings:

Fig. 1 is one of structural representation of step-up system

Fig. 2 be step-up system structural representation two

Fig. 3 be step-up system structural representation three

Fig. 4 be step-up system structural representation four

Fig. 5 is one of structural representation of force-saving tricycle

Fig. 6 be force-saving tricycle structural representation two

Five, embodiment:

Embodiment one: referring to Fig. 1, Fig. 2, a kind of step-up system, contain two levers 11, two ratchets 6, gear drive, lever interlock Bringing-back mechanism: (1) two lever 11, two ratchets 6 minutes are installed in same axle for two groups and go up two ends, the left and right sides, two levers 11 and axle are for being rotationally connected, two ratchets 6 with the axle for captiveing joint, on lever 11, be the column cavity with ratchet 6 approach ends, inside is provided with the wedge driving lever 7 that an afterbody has spring 8, the wedge shaped of this driving lever 7 and ratchet 6 profiles of tooth coupling, two levers 11 are fixed with a gear 5 by these wedge driving lever 7 driving pawls 6 at this middle part, this gear 5 connects transmission device and spreads out of rotation; (2) gear drive is one group of gear pair, contain input gear 5, output gear 3, conversion clutch gear 4, the anchor shaft of this gear pair input, output gear green phase coupling is installed in casing 1 two side, this input gear 5 is a gear described in the heading, input, output gear cooperate, connect by conversion clutch gear 4, the conversion clutch gear 4 be centered close to input, below the output gear line of centres, its two ends are positioned on casing 1 two side arc chute with its coupling, and this arc chute is the center of circle with the input shaft; (3) lever interlock Bringing-back mechanism contains fixed pulley 9, and rope 10, fixed pulley 9 are fixed in lever 11 middle upper portion certain positions, and rope 10 two ends are walked around fixed pulley 9 and connected the reciprocating mechanism that two levers, 11, two levers 11 form one on the other respectively.

When lever 11 upper and lower circulating motions, rotate by wedge driving lever 7 driving pawls 6, ratchet 6 coaxial input gears 5 are stirred conversion clutch gear 4 upward movements, make it connect input gear 5, output gear 3 is by conversion clutch gear 4, output gear 3 is passed in motion, when lever 11 was motionless, conversion clutch gear 4 was because deadweight slides into the bottom along the arc chute of casing 1 both sides, realized separating of input gear 5 and output gear 3.

Embodiment two: participate in Fig. 3, Fig. 4, embodiment two and embodiment one are basic identical, the representative meaning that numbering is identical among the figure is identical, something in common does not repeat, difference is: the gear drive of described step-up system is one to have cylindrical wheel two speed transmissions of neutral, and this change-speed box contains input shaft 14, output shaft 12, gearshift axle 13, and input shaft 14 is the input gear place axle described in the embodiment one.

Embodiment three: referring to Fig. 1, Fig. 2, Fig. 5, a kind of force-saving tricycle, contain vehicle frame 18, handlebar 17, wheel 19, wagon box 15, vehicle seat 16, stretcher 20, flywheel 23, step-up system 21, this step-up system 21 contains two levers 11, two ratchets 6, gear drive, lever interlock Bringing-back mechanism: (1) two lever 11, two ratchets 6 minutes are installed in same axle for two groups and go up two ends, the left and right sides, two levers 11 and axle are for being rotationally connected, two ratchets 6 with the axle for captiveing joint, on lever 11, be the column cavity with ratchet 6 approach ends, inside is provided with the wedge driving lever 7 that an afterbody has spring 8, the wedge shaped of this driving lever 7 and ratchet 6 profiles of tooth coupling, two levers 11 are fixed with a gear 5 by these wedge driving lever 7 driving pawls 6 at this middle part, this gear 5 connects transmission device and spreads out of rotation; (2) gear drive is one group of gear pair, contain input gear 5, output gear 3, conversion clutch gear 4, the anchor shaft of this gear pair input, output gear green phase coupling is installed in casing 1 two side, this input gear 5 is a gear described in the heading, input, output gear cooperate, connect by conversion clutch gear 4, the conversion clutch gear 4 be centered close to input, below the output gear line of centres, its two ends are positioned on casing 1 two side arc chute with its coupling, and this arc chute is the center of circle with the input shaft; (3) lever interlock Bringing-back mechanism contains fixed pulley 9, and rope 10, fixed pulley 9 are fixed in lever 11 middle upper portion certain positions, and rope 10 two ends are walked around fixed pulley 9 and connected the reciprocating mechanism that two levers, 11, two levers 11 form one on the other respectively; The gear drive of described step-up system 21 is positioned on the vehicle frame of wagon box bottom, and the part of the output shaft of gear drive outside casing 1 is equipped with a sprocket wheel 2, and this sprocket wheel 2 is connected the realization chain-driving by chain 22 with flywheel 23 on the rear vehicle shaft; The front end of two levers 11 of described step-up system 21 is equipped with two pedals 20, and the fixed pulley 9 of lever interlock Bringing-back mechanism is located at vehicle seat 16 times, or is located on the crossbeam of vehicle frame 18.

During use, the foot-operated stretcher 20 of lever front end down, driving pawl 6, ratchet 6 is passed to trailing wheel to motion by buffering gear 4 again, the walking of drive three-wheel vehicle, behind foot-operated stopping, the buffering gear 4 of work-saving device just slides to the chute bottom, thereby input gear 5, output gear 3 are separated, do not influence reversing.

Embodiment four: referring to Fig. 3, Fig. 4, Fig. 6, embodiment four and embodiment three are basic identical, the identical representative meaning of numbering is identical among the figure, does not repeat, and difference is: the gear drive of the step-up system among the embodiment four is one to have cylindrical wheel two speed transmissions of neutral, this change-speed box contains input shaft 14, output shaft 12, gearshift axle 13, the combination that realizes input, output by this change-speed box with separate.

Claims

1, a kind of step-up system contains two levers, two ratchets, gear drive, lever interlock Bringing-back mechanism, it is characterized in that:

(2) gear drive is one group of gear pair, contain input gear, output gear, the conversion clutch gear, the anchor shaft of each gear green phase coupling of this gear pair is installed in the box bilateral wall, this input gear is a gear described in the heading, input, output gear cooperate, connect by the conversion clutch gear, the conversion clutch gear be centered close to input, below the output gear line of centres, its two ends are positioned on the box bilateral wall arc chute with its coupling, and this arc chute is the center of circle with the input shaft;

2, step-up system according to claim 1, it is characterized in that: described gear drive is one to have cylindrical wheel two speed transmissions of neutral, this change-speed box contains input shaft, output shaft, gearshift axle, and input shaft is coaxial with the axle of described installation lever and ratchet.

3, a kind of force-saving tricycle contains vehicle frame, handlebar, wheel, wagon box, vehicle seat, stretcher, flywheel, step-up system, and this step-up system contains two levers, two ratchets, gear drive, lever interlock Bringing-back mechanism, it is characterized in that:

4, force-saving tricycle according to claim 3, it is characterized in that: the gear drive of described step-up system is one to have cylindrical wheel two speed transmissions of neutral, this change-speed box contains input shaft, output shaft, gearshift axle, and input shaft is coaxial with the axle of described installation lever and ratchet.

5, force-saving tricycle according to claim 3, it is characterized in that: the gear drive of described step-up system is positioned on the vehicle frame of wagon box bottom, the part of the output shaft of gear drive outside casing is equipped with a sprocket wheel, this sprocket wheel is connected with flywheel on the rear vehicle shaft by chain, realizes chain-driving.

6, force-saving tricycle according to claim 3 is characterized in that: the front end of two levers of described step-up system is equipped with two pedals, and the fixed pulley of lever interlock Bringing-back mechanism is located under the vehicle seat, or is located on the crossbeam of vehicle frame.