CN107618609A

CN107618609A - A kind of telescopic pedal bar labour-saving bicycle

Info

Publication number: CN107618609A
Application number: CN201710725315.6A
Authority: CN
Inventors: 杨锡辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2018-01-23

Abstract

The present invention designs a kind of telescopic pedal bar labour-saving bicycle, it is characterised in that：The left and right sides is provided with duck's egg round guide outside the chain wheel of bicycle middle shaft, and linear bearing is installed on the outside of the duck's egg round guide of bicycle middle shaft left and right ends, line slideway foot-driven lever is installed in the chute of linear bearing, the posterior segment of line slideway foot-driven lever is located in the chute of linear bearing, the front end of line slideway foot-driven lever is provided with pedal, the middle front part of line slideway foot-driven lever is fixed with shifting shaft, the shifting shaft other end, which is provided with, stirs bearing, shifting shaft is located in the guide groove of duck's egg round guide, stir the guide groove direction rolling that bearing prolongs duck's egg round guide, and line slideway foot-driven lever is driven to do stretching motion by shifting shaft.It is an advantage of the invention that it is very laborsaving, long range can be met, ridden for a long time, particularly mountain region grade climbing performance is more excellent, makes the motion, work, trip more low-carbon environment-friendly of people, riding becomes lighter, laborsaving.

Description

A kind of telescopic pedal bar labour-saving bicycle

Technical field

The present invention relates to a kind of telescopic pedal bar labour-saving bicycle and oval telescopic rail drive device.

Technical background

At present, most bicycles are all chain drives, also have and are driven on a small quantity for axle, and either chain drive is still Axle is driven, and their foot-operated pole length is all fixed, typically from 165mm, by taking chain drive as an example, when left and right pin is alternately pedaled When step pedal moves in a circle, pedalling force is delivered to chain wheel by foot-driven lever, axis, and driving chain wheel rotates counterclockwise, and leads to Cross chain and transmit the force to flywheel fixed on the right side of trailing wheel, flywheel transfers force to trailing wheel further through rear axle flower-drum, spoke Outer ring, rotate counterclockwise trailing wheel, so as to drive bicycle to move ahead.Needed generally in starting or climbing by speed than adjusting It is low, fast ratio is heightened again after speed is got up, it is desirable to speed is kept in starting or climbing, only way only has increase to scrunch Power, think to exert oneself less not only but also not want to slow down, standard bicycle is difficult to realize, and basic reason is that foot-operated pole length is fixed. The birth of telescopic pedal bar labour-saving bicycle, makes above mentioned problem be readily solved.When foot-driven lever moves to front, axis is to stepping on The distance of plate is extending to arrive 250mm-270mm, than the 165mm of ordinary bicycle foot-driven lever, adds 85mm-100mm.Foot-driven lever Length returns to 165mm again when moving to bottom.Pole length increase is ridden when firmly scrunching, equivalent to adding lever arm of force Length, feel that very comfortable is laborsaving during so as to ride.But the telescopic rail drive device of telescopic pedal bar labour-saving bicycle is adopted It is circular offset structure, the flexible shifting shaft of foot-driven lever does eccentric circular motion under the driving of circular telescopic rail.Due to bias Reason, be not round highest minimum point when foot-driven lever moves to the top and bottom, above and below respectively have card at one Point, causing to ride, not smooth enough, continuity is poor.Existing telescopic pedal bar labour-saving bicycle labour-saving operation principle refer to Number of patent application：201720609784.7.

The content of the invention

It is exactly to solve telescopic pedal bar labour-saving bicycle to ride that not smooth enough, continuity is poor to be lacked the mesh of the present invention Fall into, realize more labour-saving purpose.The present invention designs a kind of telescopic pedal bar labour-saving bicycle, including bicycle, its feature It is：The left and right sides is provided with duck's egg round guide outside the chain wheel of bicycle middle shaft, and in bicycle middle shaft left and right ends duck's egg Linear bearing is installed on the outside of round guide, line slideway foot-driven lever is installed in the chute of linear bearing, line slideway is ridden The posterior segment of bar is located in the chute of linear bearing, and the front end of line slideway foot-driven lever is provided with pedal, and line slideway is ridden The middle front part of bar is fixed with shifting shaft, and the shifting shaft other end, which is provided with, stirs bearing, and shifting shaft is located at the guiding of duck's egg round guide In groove, the outer ring of duck's egg round guide is provided with guide groove, stirs the guide groove direction rolling that bearing prolongs duck's egg round guide, and by dialling Moving axis driving line slideway foot-driven lever does stretching motion.Described duck's egg round guide is horizontally arranged, and big circular portion is located at Bicycle corresponding oval position rear, small circular portion are located in front of bicycle oval relevant position, and bicycle middle shaft is located at The lower section in the rear horizontal center line great circle center of circle of duck's egg round guide.

It is an advantage of the invention that very laborsaving, it can meet over long distances, ride for a long time, particularly mountain region grade climbing performance is more Add excellent, make the motion of people, work, trip more low-carbon environment-friendly, riding becomes lighter, laborsaving.

Brief description of the drawings

Fig. 1 is the telescopic pedal bar of bicycle middle shaft of the present invention connection（On the left of bicycle）Move to work during bottom Make principle schematic.

Fig. 2 is the telescopic pedal bar of bicycle middle shaft of the present invention connection（On the left of bicycle）Motion to the end upper end when Operation principle schematic diagram.

Fig. 3 is the telescopic pedal bar of bicycle middle shaft of the present invention connection（On the left of bicycle）Move to work during front Make principle schematic.

The present invention is elaborated with reference to embodiment and accompanying drawing.

Embodiment

A kind of telescopic pedal bar labour-saving bicycle, including bicycle, it is characterised in that：In the chain wheel of bicycle middle shaft 3 The outer left and right sides is provided with duck's egg round guide 1, and is provided with straight line in the outside of 3 left and right ends duck's egg round guide of bicycle middle shaft 1 Bearing 2, line slideway foot-driven lever 4 is installed in the chute of linear bearing 2, the posterior segment of line slideway foot-driven lever 4 is positioned at straight Bobbin is held in 2 chute, and the front end of line slideway foot-driven lever 4 is provided with pedal 5, and the middle front part of line slideway foot-driven lever 4 is consolidated Surely there is shifting shaft 6, the other end of shifting shaft 6, which is provided with, stirs bearing, and shifting shaft 6 is located in the guide groove 7 of duck's egg round guide 1, duck The outer ring of egg round guide 1 is provided with guide groove 7, stirs the direction of guide groove 7 rolling that bearing prolongs duck's egg round guide 4, and by stirring Axle 6 drives line slideway foot-driven lever 4 to do stretching motion.Described duck's egg round guide 1 is horizontally arranged, and big circular portion is located at Bicycle corresponding oval position rear, small circular portion are located in front of bicycle oval relevant position, and bicycle middle shaft 3 is located at The lower section in the rear horizontal center line great circle center of circle of duck's egg round guide 1.

Fig. 1 is fixed on line slideway pin when the people that rides starts firmly to scrunch bicycle right side footrest 5 on the left of bicycle The pedal 5 of the one end of treadle 4 is placed exactly in the bottom of axis 3, and prepares to start to move rearwardly and upwardly, now line slideway pin Treadle 4 stops upward sliding in linear bearing 2, now ridden because the guide groove 7 of shifting shaft 6, duck's egg round guide 1 acts on The distance of plate 5 to axis 3 is that 165mm is most short.

Fig. 2 pedals 5 are since minimum point during up return, because the great circle circle center hole of duck's egg round guide 1 is offset downward, So the distance of up pedal 5 to axis 3 can constantly extend, when pedal 5 is run to the top, pedal 5 arrives axis 3 Distance be elongated to 200mm-245mm, how much elongation can be depending on people's height of riding.People's left foot of now riding starts to have an effect Scrunch pedal 5, line slideway foot-driven lever 4 stirs the effect of bearing, shifting shaft 6, straight due to the guide groove 7 of duck's egg round guide 1 Bobbin holds 2 slides forwards, and the distance of pedal 5 to axis 3 continues to extend.

Fig. 3 runs to preceding upper end when pedal 5, now the most long 250mm-270mm of the distance of pedal 5 to axis 3.When riding Pedestrian's left foot continues firmly to scrunch pedal 5, and the distance of descending pedal 5 to axis 3 starts to shorten, when pedal 5 is descending During to minimum point, the distance of pedal 5 to axis 3 shortens again returns to 165mm, and right crus of diaphragm pedal 5 now is returned to most again High point.So left and right pin alternately scrunches pedal 5, constantly driving axis 2, chain wheel, flywheel, rear wheel, continuous laborsaving acting, So as to drive bicycle to move ahead.Need to scrunch when having an effect, elongated the distance that pedal 5 arrives axis 3, equivalent to increasing lever Torque arm length, be just enough to drive car to move ahead so scrunching bicycle pedal 5 with less power.In speed ratio and tradition certainly In the case of identical of driving a vehicle, left and right pedal legpower is greatly decreased, reaches and realizes more labour-saving purpose.When pedal reaches 5 minimum points do not have to when having an effect, and the distance of pedal 5 to axis 3 is reduced to most short again.

Labour-saving bicycle cleverly make use of lever principle on the basis of original custom of riding is not changed, pedal from Peak to minimum point firmly scrunch need it is laborsaving when, extended the length of line slideway foot-driven lever automatically, increased lever Torque arm length.When pedal is from minimum point to peak return, and certain line slideway has been extended automatically and has ridden pole length, made Obtain pedal arrival peak to prepare just to have increased the length of line slideway foot-driven lever when scrunching, while reduce again from most Height arrives the elongation gap of most front foot treadle, alleviates significantly and scrunches weight sense when riding, and making to ride becomes more smooth, connects It is continuous.When the people that rides continues firmly to scrunch pedal, the distance of descending pedal to center rotating shaft starts to shorten, and works as pedal When coming downwards to minimum point, the distance of pedal to axis foreshortens to 165mm automatically, makes line slideway foot-driven lever is unlikely to contact to earth, because And riding becomes more laborsaving.Over long distances, sour swollen, distending pain, the sense of fatigue of leg muscle are felt most when long-time, climbing are ridden The alleviation and release of limits, so that riding becomes more convenient, light.

Claims

1. a kind of telescopic pedal bar labour-saving bicycle, including bicycle, it is characterised in that：It is left outside the chain wheel of bicycle middle shaft Right both sides are provided with duck's egg round guide, and are provided with linear bearing on the outside of the duck's egg round guide of bicycle middle shaft left and right ends, Line slideway foot-driven lever is installed, the posterior segment of line slideway foot-driven lever is located at the chute of linear bearing in the chute of linear bearing Interior, the front end of line slideway foot-driven lever is provided with pedal, and the middle front part of line slideway foot-driven lever is fixed with shifting shaft.

A kind of 2. telescopic pedal bar labour-saving bicycle as described in claim 1, it is characterised in that：Described duck's egg round guide To be horizontally arranged, big circular portion is located at bicycle corresponding oval position rear, and small circular portion is located at bicycle oval In front of relevant position, bicycle middle shaft is located at the lower section in the rear horizontal center line great circle center of circle of duck's egg round guide.

A kind of 3. telescopic pedal bar labour-saving bicycle as described in claim 1, it is characterised in that：The shifting shaft other end is installed Bearing is stirred, shifting shaft is located in the guide groove of duck's egg round guide.

A kind of 4. telescopic pedal bar labour-saving bicycle as described in claim 1,3, it is characterised in that：Outside duck's egg round guide Circle is provided with guide groove, stirs bearing and prolongs the guide groove direction rolling of duck's egg round guide, and passes through shifting shaft and drive line slideway pin Treadle does stretching motion.