CN2312172Y

CN2312172Y - High-speed and power-saving bicycle

Info

Publication number: CN2312172Y
Application number: CN 97228590
Authority: CN
Inventors: 李永志
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-20
Filing date: 1997-10-20
Publication date: 1999-03-31
Anticipated expiration: 2007-10-20

Abstract

The utility model relates to a high-speed and power-saving bicycle, relating to a manpower transmission device of a bicycle; the utility model can also be applied to a stepless speed changing bicycle and a manpower tricycle after small change. The utility model is provided with power-saving and speed-inceasing devices of a pull rod device, etc., a Z-shaped foot crank and a driving and a driven gears driven by the Z-shaped foot crank outside a middle shaft; a middle shaft sleeve is divided into two segments; a chain wheel is arranged between the two segments; a driving chain wheel can drive a driven chain wheel and a chain plate through chains; the chain plate can drive a flywheel and bicycle wheels to rotate through chains. Because of the transmission device of a bicycle, the transmission ratio is enlarged during pedaling, and the bicycle speed is increased; the secondary transmission formed by the pull rod device and the driving and the driven chain wheels is felicitously utilized, causing that the bicycle is very power-saving when rid by people, and the speed is higher.

Description

The high speed labour-saving bicycle

The utility model relates to a kind of people's force transmission mechanism of bicycle.

Bicycle is one of main vehicle of present people, along with the quickening of people's rhythm of life, many times wishes bicycle speed hurry up.But the bicycle drive method that uses is simpler at present, and transmitting ratio is little, and riding speed is slower, requires great effort again if ride soon.Though some improved bicycle transmission structure can raise speed, and pedals the effort fatiguability, the at a high speed lasting and labour-saving purpose of out of reach.In addition some has changed to pedal and has ridden posture and car shape, but the cyclist can not be adapted within a short period of time.The applicant was not long ago once proposing " bicycle and three-wheel vehicle high speed labor-saving transmission mechanism " patent application, solved preferably at a high speed and the labour-saving problem.This application mainly is to adopt Z word pin to turn respectively at the axis two ends, pin turns the stage casing driving gear is housed, and drive and driving gear have the driven gear of a stable drive ratio, makes driven gear drive keyboard, chain and wheel are provided with the labour-saving drag link mechanism in addition between driving gear and rear axle.

The utility model is in order a kind of new made bicycle high speed labour-saving manpower power drive to be provided, former bicycle agent structure not to be done big change, reach and can run at high speed, not making the people feel tired purpose again.

Above-mentioned purpose is achieved in that this car only makes improvements people's force transmission mechanism, be that the pin at the axis two ends of car turns and still adopts the zigzag structure, its end is captiveed joint with the bearing shell on the bottom bracket axle, the other end is equipped with pedal, its stage casing is equipped with a driving gear, pin turn and driving gear between be equipped with bearing, each fixes a driven gear axis two ends outermost end, and with driving gear engagement, between driving gear lateral surface and rear axle, be provided with drag link mechanism.The bottom bracket axle branch that mainly is this device is for two sections, and the bearing inner sleeve of bottom bracket axle outside face and pin end is fixed, and the axis between two bottom bracket axles is provided with drive sprocket, and the isoplanar is provided with driven sprocket above drive sprocket, two-wheeled chain interlock.Rotating shaft one end of driven sprocket is connected with chain drum, and chain drum is connected transmission with flywheel on the rear axle with chain.At drive sprocket and driven sprocket both sides two baffle plates are set, the bottom bracket axle on their both sides is positioned on the baffle plate, and baffle plate is fixed on the vehicle frame.This structure is done slightly to change and be can be applicable to bicycle with stepless speed change and three-wheel vehicle.If drive sprocket and driven sprocket are changed to toric transmission, get final product for flywheel and trailing wheel by its transmission chain drum and by chain gear.If be used for manual tricycle, only need driven gear and chain drum are removed, get final product from the flywheel on the drive sprocket through-coupling three-wheel vehicle rear axle with chain.

Because this car in people's force transmission mechanism, has enlarged transmitting ratio and has improved the speed of a motor vehicle, has used Tiebar structure also comparatively laborsaving.The main secondary transmission that has been to use drive sprocket and driven sprocket etc. to constitute, make people ride more laborsaving, speed is faster, is beneficial to long distance travel, is desirable laborsaving high-speed bicycle.

Drawings and Examples:

Accompanying drawing 1 is the Facad structure scheme drawing.

Accompanying drawing 2 is plan structure scheme drawing (driven sprocket moves right slightly).

Accompanying drawing 3 is for being applied to the transmission device structural representation of bicycle with stepless speed change.

Accompanying drawing 4 is for being applied to the transmission device structural representation of three-wheel vehicle.

Embodiment 1: among Fig. 1 and Fig. 2, car is not done big change, only people's force transmission mechanism is improved, each sets of transmission mechanism of both sides.The pin at axis 1 two ends of car turns 2 and adopts zigzags, and its end is connected with bearing 4 shells on the bottom bracket axle 3, and pin turns the Z other end and is equipped with pedal 5.Pin turns 2 stage casings and is equipped with a driving gear 6, and it and pin turn 2 and be equipped with bearing 7, and axis 1 outermost end respectively is fixed with one and driving gear 6 ingear driven gears 8, and is provided with drag link mechanism 10 at the lateral surface and 9 on the rear axle of driving gear 6.Main bottom bracket axle 3 is divided into two sections, on the axis 1 that two bottom bracket axles are 3 drive sprocket 11 is set, and its isoplanar, top is provided with and uses chain 13 interlocks between driven sprocket 12, two sprocket wheels, and cover is fixing in bottom bracket axle 3 outside faces and the bearing 4.Rotating shaft one end of driven sprocket 12 is connected with chain drum 14, respectively is provided with a baffle plate 15 in drive sprocket 11 and driven sprocket 12 both sides, and their bearing fixing is on baffle plate 15, and the axle two ends of baffle plate 15 inboards respectively are provided with bearing.Baffle plate 15 fixedly on the vehicle frame 16, make by vehicle frame 16 usefulness flute profile steel, and drive sprocket 11 rotates in groove with the outer garden of driven sprocket 12.Flywheel 21 on the sprocket wheel 14 usefulness chains 22 interlock rear axles, remaining members such as wheel are apparent just no longer to be described in detail.

Embodiment 2: when this transmission device is used for the bicycle with stepless speed change transmission device, drive sprocket in the baffle plate 15 11 and driven sprocket 12 and chain 13 are changed to toric transmission 17, drive chain drum 14 by it, the speed change of buncher 17 can become the laborsaving bicycle with stepless speed change of high speed by steel wire tow line 18 controls of linking on the handlebar controller.

Embodiment 3, if be used on the manual tricycle, this transmission device is used also very convenient, and driven gear 12 and chain drum 14 are removed, and directly with chain 19 flywheel 20 interlocks on drive sprocket 11 and the rear axle is got final product.

Claims

1, the high speed labour-saving bicycle relates to a kind of people's force transmission mechanism of bicycle, two pin at axis 1 two ends of car turn 2 and adopt the zigzag structure, its end is captiveed joint with bearing 4 shells on the bottom bracket axle 3, the other end is equipped with pedal 5, its stage casing is equipped with driving gear 6, it and pin turn 2 and are equipped with bearing 7, axis 1 outermost end respectively is fixed with one and driving gear 6 ingear driven gears 8,9 on driving gear 6 lateral surfaces and rear axle are provided with drag link mechanism 10, it is characterized in that: bottom bracket axle 3 is two sections, be equipped with drive sprocket 11 on the axis 1 that two bottom bracket axles are 3, its isoplanar, top is provided with driven sprocket 12, use chain 13 interlocks between two sprocket wheels, cover is fixing in bottom bracket axle 3 outside faces and the bearing 4, and rotating shaft one end of driven sprocket 12 is connected with chain drum 14, and drive sprocket 11 respectively is provided with a baffle plate 15 with driven sprocket 12 both sides, their axle sleeve is fixed on the baffle plate 15, and baffle plate 15 is fixed on the vehicle frame 16.

2, high speed labour-saving bicycle according to claim 1 is characterized in that: vehicle frame 16 usefulness flute profile steel are made, and rotate in groove in the outer garden of drive sprocket 11 and driven gear 12.

3, high speed labour-saving bicycle according to claim 1, it is characterized in that: when being used for bicycle with stepless speed change, drive sprocket 11 and driven sprocket 12 and chain 13 are changed to no plate change-speed box 17 and interlock chain drum 14, and the controller that the steel wire tow line 18 that buncher 17 is drawn is linked on the handlebar is a variable-ratio.

4, high speed labour-saving bicycle according to claim 1 is characterized in that: when being used for manual tricycle, driven sprocket 12 and chain drum 14 are removed, with chain 19 flywheel 20 interlocks on drive sprocket 11 and the rear axle are got final product.