CN201099318Y

CN201099318Y - Bicycle

Info

Publication number: CN201099318Y
Application number: CNU2007200171424U
Authority: CN
Inventors: 邓之学; 李焕风
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-09
Filing date: 2007-01-09
Publication date: 2008-08-13
Anticipated expiration: 2017-01-09

Abstract

The utility model relates to a bicycle (a two-wheel bicycle or a tricycle), which comprises a front wheel, rear wheels, a front fork, a handle, a frame, a variable speed case, a seat, a storage rack, a clip, a large hinge, etc.; the utility model solves the problems that the center of gravity of prior bicycle is high, the riding posture is poor, and the middle-aged adults and children are difficult to ride the bicycle. Therefore, the seat is moved from the upper part of the frame to the lower part, the adjustable seat is designed, the height of the seat (35 to 50 cm from the ground) can be adjusted according to the personal requirement of a rider, such as the height, sex and age of the rider, the riding is secure and comfortable because of lower center of gravity, andthe frame can be stretched via the clip to adjust the length of the frame.In addition, the bicycle can be shortened and folded through the large hinge and the clip to facilitate carrying and storage. The labor-saving variable speed case is designed in the bicycle, comprising a steel wire pull rope, a pulley, a sleeve, a spring, a gear and a shifting fork, and has long service life and small failure rate.

Description

New bicycle

Technical field:

The utility model relates to a kind of bicycle, comprises that two take turns and tricycle

Background technology:

Existing bicycle center of gravity height, vehicle seat be little, posture back of a bow waist by bike, long-distance fatiguability by bike; The utility model characteristics are that center of gravity is low, the similar automotive seats of vehicle seat, drive comfortable, safety factor is high, saves muscle power, any people also can ride for the elderly and action very flexible; Though and the lying down type bicycle center that has just occurred is low,, it is poor to drive posture, and long-distance unfavorable to the health bone, sight line is bad; Existing variable speed bicycle adopts the chain cone pulley, two transmission cone pulleys how not in one plane, chain-taking easily, chain is subjected to inclined to one side power accelerated wear test; Germany has a kind of change gear transmission to be contained in the trailing wheel cucurbit, the accuracy of manufacture height, and installing, debug, keep in repair must the professional.

The utility model content: the utility model purpose is the deficiency that overcomes existing bicycle, provides that a kind of center of gravity is low, posture meets people's physiological requirement by bike, and is safe, comfortable, convenient, laborsaving, adaptable bicycle.For this reason, the technical scheme of employing is: vehicle seat is located at bottom of frame, similar little sofa; Go into requirement according to motorist's stature, sex, age etc., suitably adjust the height of vehicle frame length and vehicle seat; Also new bicycle can be made the vehicle frame of large, medium and small three kinds of sizes, so just save the adjustment part, manufacturing cost reduces, low price.Two wheel bicycle bands, one special stand can be had a rest as sofa during parking; Three-wheel vehicle does not need support;

When needs are deposited or carry, with bicycle shorten, folding, be easy to carry and deposit;

Description of drawings:

Fig. 1 is the structure of this new bicycle, comprises pedal 1, front-wheel 2, trailing wheel 9, front fork 3, and handlebar 4, vehicle frame 5, change speed gear box 6, seat 7, shelf 8, clamp 10, big hinge 11 parts such as grade are formed; This new bicycle vehicle frame can pass through big hinge 11, clamp 10 with bicycle shortening, folding in addition by clamp 10 flexible vehicle frames;

Fig. 2 establishes the force-saving speed-varying device for this new bicycle, and this device comprises axis 1, steel wire tow line 2, and pulley 3, sleeve 4, spring 5, shift fork 6,

dual gear

7,8 and miniature gears 10, sprocket wheel 11 is formed.

The adjustable seat of installing on this new bicycle vehicle frame of Fig. 3 can be regulated seat apart from floor level in the 35-50CM scope; This force-saving speed-varying device is applicable to various bicycles, three-wheel vehicle, both can be used for new car, also can be used for the used car transformation.

The specific embodiment:

Embodiment 1, when rider's youth, individual head height, the handle that can pull clamp 10 (seeing accompanying drawing 1) unclamps clamp, elongate vehicle frame as required, pull clamp handle turn-buckle then, simultaneously, unclamp beneath dish-like nut 7 of vehicle seat and clamp 6 and see accompanying drawing 3), upwards improve vehicle seat as required, tighten dish-like nut, turn-buckle then.

Embodiment 2, when needs are moved and deposit, the handle that can pull clamp 10 (seeing accompanying drawing 1) unclamps clamp, and vehicle frame is shortened, and simultaneously, opens big hinge 11, and car is folding, car can be put into automobile trunk; Also can be portable by bus, train.

Embodiment 3, as accompanying drawing 2, when bicycle at level road and gentle breeze or with the wind the time, because the effect of spring 5 make the big gear wheel of dual gear 7 and the pinion of dual gear 8, and the big gear wheel of dual gear 8 and miniature gears 10 meshes forever.When pedal turned the axle rotation, bicycle was in high-speed travel state; Because the polarity gear increaser, chain-driving is just without speedup, thereby drive sprocket 11 numbers of teeth can significantly reduce.

Embodiment 4, as accompanying drawing 2, when running into against the wind or go up a slope, stir the governor handle on the handlebar, steel wire tow line 2 spurs shift fork left, thus the bull wheel of the miniature gears handsetting gear 8 of driving wheel 7, and drive pinion 10 again, like this, substantially do not have speedup, thereby the power of pedaling greatly just reduces, bicycle easily advances.

Claims

1. a new bicycle comprises two wheel bicycles and tricycle, it is characterized in that former bicycle front and rear wheel apart from increasing, and bicyclist's center of gravity reduces, and saddle makes liftable sofa type seat into, substitutes existing sprocket speed changing device with change gear transmission.

2. new bicycle as claimed in claim 1 is characterized in that installing on the vehicle frame front and back and Height Adjustable seat.

3. new bicycle as claimed in claim 1 is characterized in that vehicle frame can pass through big hinge, clamp is flexible, folding with bicycle.

4. new bicycle as claimed in claim 1 is characterized in that the transmission system of this new bicycle is made up of gear, steel wire tow line, pulley, sleeve, spring and shift fork.

5. new bicycle as claimed in claim 1 is characterized in that the miniature change-speed box of this new bicycle transmission system design-calculated is made up of dual gear and miniature gears, sprocket wheel.

6. new bicycle as claimed in claim 5 is characterized in that this miniature change-speed box and vehicle frame are fixed as one.