CN202987442U

CN202987442U - Bicycle

Info

Publication number: CN202987442U
Application number: CN 201220436298
Authority: CN
Inventors: 孙又能; 孙琛; 孙逸君
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-06-12
Anticipated expiration: 2022-08-22

Abstract

The utility model discloses a bicycle and solves the problem that an existing bicycle is low in riding speed. The bicycle is characterized in that two oval rails (3) are installed on big frames which are arranged on two sides of a center shaft (4) of the bicycle; rotating cranks of the bicycle are manufactured into main cranks (6) and retracted cranks (7); the retracted cranks (7) are provided with foot rests (2); oval rail inner bearings (8) and oval rail outer bearings (9) are installed on the inner sides near the foot rests (2); the main cranks (6) on two sides of the big frame form an angle of 180 degrees and are fixed on the center shaft (4) of the bicycle; the oval rails (3) are arranged in gaps between the oval rail inner bearings (8) and oval rail outer bearings (9); the retracted cranks (7) surround the oval rails (3) to conduct rotation of 360 degrees under the domination of the oval rail inner bearings (8) and oval rail outer bearings (9). The bicycle is applicable to the field of pedal bicycles or trishaws.

Description

A kind of bicycle

One, technical field

The utility model belongs to the bicycle and man field, relate in particular to a kind of fast, labour-saving manpower pedal bicycle.

Two, background technology

the bicycle of present manpower pedal, fast development through last 100 years is quite perfect, particularly more and more lighter aspect weight, a lot of new materials are used for this field, a lot of changes in bicycle field have been brought, due to bicycle weight saving, riding speed is corresponding quickening also, but developing into so far of bicycle, still very slow a kind of vehicle of speed concerning most of bicyclists, be difficult to satisfy bicyclist's needs, the major cause here is its drive configuration existing problems, cause its speed to can not get improving, an adult's physical efficiency can reach 0.5～1.5 kilowatt, and the power of Electrical Bicycle is 250～300 watts, but time scooter 40～50 kilometers left and right of Electrical Bicycle, and this speed of Regular Bicycle bicyclist out of reach Electrical Bicycle, the structure that present bicycle is described does not make bicyclist's physical efficiency be not fully exerted, this foot-operated drive configuration of present bicycle, bicyclist's shank is produced tired, cause bicycle speed slower.

Three, summary of the invention

The utility model has solved the slow problem of present cycling, and a kind of physical efficiency that can give full play to the people is provided, and makes a kind of bicycle of the riding speed quickening of bicycle.

the technical solution of the utility model is: it includes two wheels, large frame, front direction fork and direction handgrip, and brake equipment, chain wheel, chain, flywheel, it is characterized in that: two elliptical orbits are installed on the both sides of the bicycle center shaft on large frame, elliptical orbit is fixed into an integral body with large frame, rotary crank is made into main crank and crank, crank is combined into a telescopic integral body by steel ball sleeve and steel ball thereof and main crank, installation foot pedal on crank, at installed inside elliptical orbit neck bearing and the elliptical orbit outer bearing near stretcher, become 180 ° of positions to be fixed on the bicycle center shaft main crank of large frame the right and left, the intermediate space of elliptical orbit neck bearing and elliptical orbit outer bearing is the position of elliptical orbit, crank is done 360 ° of rotations around elliptical orbit under the domination of elliptical orbit neck bearing and elliptical orbit outer bearing.

The beneficial effects of the utility model are: one, because the speed of bicycle is improved, and saved people's muscle power, so, caused bicycle to obtain further developing as a kind of vehicle, thereby made the most easy vehicle of human society more perfect, its development space will be larger, more can satisfy teenager's, particularly middle school student needs.Its two, due to the raising of bicycle speed per hour, Electrical Bicycle is replaced some in these two kinds of vehicle of solo by bicycle, so, be more convenient for the crowd of certain muscle power.They are three years old, a kind of vehicle of energy-conserving and environment-protective relatively easy to control due to bicycle, again a kind of vehicle of taking exercises, to emerge in large numbers the fan of large quantities of bicycles thus, thereby also a collection of new sports items will appear accordingly, make people it both as the vehicle, again as the instrument of taking exercises, thereby contribute for the mankind's health.

Below in conjunction with accompanying drawing, the utility model is further described.

Four, description of drawings:

Accompanying drawing is large of vehicle body and the structural representation of elliptical orbit and crank

In figure: 1 is large of bicycle, and 2 is stretcher, and 3 is elliptical orbit, and 4 is the bicycle center shaft, and 5 is steel ball sleeve and steel ball thereof, and 6 is main crank, and 7 is crank, and 8 is the elliptical orbit neck bearing, and 9 is the elliptical orbit outer bearing.

Five, the specific embodiment

for the leg power that makes the bicycle riding people is used just right degree, bicycle described in the utility model: it includes two wheels, large frame, front direction fork and direction handgrip, and brake equipment, chain wheel, chain, flywheel, it is characterized in that: two elliptical orbits 3 are installed on the both sides of the bicycle center shaft 4 on large frame 1, elliptical orbit 3 is fixed into an integral body (seeing shown in accompanying drawing) with large frame 1, rotary crank is made into main crank 6 and crank 7, crank 7 is combined into a telescopic integral body (seeing shown in accompanying drawing) by steel ball sleeve and steel ball 5 thereof with main crank 6, installation foot pedal 2 on crank 7, at installed inside elliptical orbit neck bearing 8 and the elliptical orbit outer bearing 9 (seeing shown in accompanying drawing) near stretcher 2, main crank 6 one-tenth 180 ° of positions of large frame 1 the right and left are fixed on bicycle center shaft 4, the intermediate space of elliptical orbit neck bearing 8 and elliptical orbit outer bearing 9 is positions of elliptical orbit 3, crank 7 is done 360 ° of rotations around elliptical orbit 3 under the domination of elliptical orbit neck bearing 8 and elliptical orbit outer bearing 9.

Claims

1. bicycle: it includes two wheels, large frame, front direction fork and direction handgrip, and brake equipment, chain wheel, chain, flywheel, it is characterized in that: two elliptical orbits (3) are installed on the both sides of the bicycle center shaft (4) on large frame (1), elliptical orbit (3) is fixed into an integral body with large frame (1), rotary crank is made into main crank (6) and crank (7), crank (7) is combined into a telescopic integral body by steel ball sleeve and steel ball (5) thereof with main crank (6), at the upper installation foot pedal (2) of crank (7), at installed inside elliptical orbit neck bearing (8) and the elliptical orbit outer bearing (9) near stretcher (2), become 180 ° of positions to be fixed on bicycle center shaft (4) main crank (6) of large frame (1) the right and left, the intermediate space of elliptical orbit neck bearing (8) and elliptical orbit outer bearing (9) is the position of elliptical orbit (3), crank (7) is done 360 ° of rotations around elliptical orbit (3) under the domination of elliptical orbit neck bearing (8) and elliptical orbit outer bearing (9).