CN87103306A

CN87103306A - Speed regulation hydraulic bicycle

Info

Publication number: CN87103306A
Application number: CN 87103306
Authority: CN
Inventors: 邵锐勋; 许燕欣
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-04-30
Filing date: 1987-04-30
Publication date: 1988-11-09

Abstract

The present invention be a kind of with people with foot-operated be power, the modern easy vehicle that adapt to energy-conservation, environmental protection, body-building and provide amenities for the people; It also has the function of automatic stepless speed change.It is made up of power system, brake system, oil-supplementing system, car body and annex.This bicycle can be made optimum riding speed automatically to ground effect and be selected, thereby reaches light, prompt purpose.This car dependable performance, the efficient of riding height, rational in infrastructure, can accomplish light, little, simple, honest and clean, be easy to popularize.

Description

The invention belongs to a kind of bicycle.

At present, the bicycle of countries in the world still utilizes chain and gear transmission basically.Many countries are making ten grades to 16 grades variable speed bicycles, improve the efficient of riding thereby speed speeded.But, rely on mechanical speed change can make the body construction complexity, handle also difficulty, and the speed of car speeds, must consume bigger muscle power.In the seventies later stage, hydraulic bicycle was once set about developing by American and Britain, day, various countries, and on May 2nd, 1, US Patent (patent No. 4,087,105) has been announced an all-hydraulic bicycle.In 1979 Britain has published one and half hydraulic bicycles on 908 pages of " Engineeing " 219 7 phases of volume.Also there is full hydraulic three-wheel vehicle patent in Japan.Above-mentioned American and Britain, day hydraulic pressure and half hydraulic bicycle, its oil pump adopts gear type pump, quantitative plunger pump and lever plunger pump respectively; Oil motor all is to adopt the oil motor that does not have flywheel functions; Also neither one utilizes the oil-supplementing system that barometric pressure is used as power.Thereby above-mentioned various inventions can not make still in design that its function reaches at a high speed, efficient, lightness, miniaturization, easy and simple to handle.

We know, the bicycle of a chain gear, and mechanical efficiency can reach about 90%, but the net effciency of the bicycle of riding is all quite low, and about 10～16%.

We think, the net effciency of bicycle must be considered people and these two factors of Che.Be the bicycle net effciency=bicycle driving efficiency * efficient of riding.The height of the efficient of riding, very important to the influence of net effciency.

For example: the net effciency of ZIPPER ASSEMBLER

0.16=0.90 * the efficient of riding

Ride about efficient=0.18

All-hydraulic automatic speed changing car

0.16=0.80 * the efficient of riding

Ride about efficient=0.20

As seen, if net effciency is identical, car driving efficiency hydraulic pressure car is lower by 10% than mechanical car, but the efficient of riding only needs high 2% to get final product.In fact, consider the problem of human engineering aspect, the efficient of riding of automatic stepless speed changing hydraulic bicycle is far longer than 2%.

Another big characteristics of automatic stepless speed changing hydraulic bicycle are that speed ratio is big, and the speed ratio of common car is 1: 2.3, and the speed ratio of hydraulic pressure car can reach 1: 4.Therefore, on straight road surface, be easy to reach 28～30 kilometers of speed per hours.Based on so a kind of imagination, the invention provides a kind of is power with the manpower, can be according to ground effect, and automatic speed changing keeps the best speed of a motor vehicle and the hydraulic efficiency pressure system of efficient, Here it is goal of the invention of the present invention.

The present invention is made up of power system, brake system, oil-supplementing system and car body and annex.

Below with reference to accompanying drawing, structure of the present invention and embodiment are described in further detail.

Fig. 2 is the hydraulic system principle figure of a kind of concrete structure of the present invention.

Fig. 1 is the front view of a kind of concrete structure of the present invention.

With reference to Fig. 1, hydraulic speed-changing bicycle of the present invention is made up of following several parts:

(1) power system: it is made up of oil pump (2), pressure oil pipe (3), oil motor (4), oil return pipe (5) and reserve tube (7).Oil pump (2) is connected the below of oil circuit board (10), and its rotor projecting shaft links to each other with foot-operated; Pressure oil pipe (3) is exactly the right pipe of car chain stay, and oil return pipe (5) is exactly a car chain stay left side pipe, and its end of two is imported and exported and all welded with oil circuit board (10).The other end is with to be contained in oil motor (4) pintle of locating on the rear vehicle shaft hinged.When the housing of oil motor (4) rotates, just directly drive wheel rolling.

(2) brake system: it by left brake bar (12), oil pump (2), braking cut down (1), pressure oil pipe (3), oil motor (4), oil return pipe (5) is formed.Brake activation valve (1) is connected the top of oil circuit board (10).

(3) oil-supplementing system: formed with choker relief valve (9) by reserve tube (7), the valve of unblanking (8) that is positioned at the check valve (6) of reserve tube (7) and is located at saddle (22) below.

Above-mentioned (1), (2), (3) described reserve tube (7) communicate with oil circuit board (10) welding ， And and with oil return pipe (5).

(4) car body: it is made up of right brake lever (13) and handgrip parts (14), front mudguard (17), front fork parts (16), front-wheel (18), energy disperser (19), trailing wheel (20), back fender (21), saddle (22), preceding pipe (11) and crossbeam (23), rear supporting tube (24).

(5) annex (15): it is made up of car light, electronic buzzer phone, speed, time, mileage telltale and sensor.

With reference to Fig. 2, shown hydraulic efficiency pressure system, it is installed on this speed regulation hydraulic bicycle, this hydraulic efficiency pressure system, it is the same with the C/LOOP that common oil pump, oil motor are formed, and forms C/LOOP by oil pump (2), pressure oil pipe (3), oil motor (4), oil return pipe (5), reserve tube (7).Oil pump (2) is to adopt the pressure servo variable capacity oil pump with Ultra-Low Speed function, the rider can start it with foot-operated, start by foot-operated, it draws hydraulic oil from oil return pipe (5), hydraulic pressure is transferred to oil motor (4) along pressure oil pipe (3), oil motor (4) rotates thereupon, and drive wheels is and then rotated simultaneously.The oil that oil motor (4) is discharged is sucked by oil pump (2) once again by oil return pipe (5).Like this, the fluid circulation endlessly.On the other hand, added brake activation valve (1) in system, it changes the oily flow path direction of oil pump (2) by the effect of handle, thereby reaches the purpose of brake noise motor (4).

In order to prevent in C/LOOP, to produce degree of vacuum, destroy the continuity of fluid, make foot-operated " taking off chain " sensation that has.Native system has been set up the oil-supplementing system that utilizes atmosphere to be used as power.It is made up of check valve (6), reserve tube (7), the valve of unblanking (8), choker relief valve (9).When people when riding, because during body weight compressing saddle (22), the valve of unblanking (8) just is in opening.If the instantaneous vacuum that occurs in the oil return pipe (5), barometric pressure are gone into the fluid in the reserve tube (7) in the oil return pipe (5) by check valve (6) compensation by the valve of unblanking (8) at once.

See figures.1.and.2, its process of riding is as follows:

Ride:

Undertaken by common method by bike.When the people was sitting on the saddle (22), the valve of unblanking (8) was opened, and oil-supplementing system enters mode of operation.Ride when moving oil pump (2), produce Gao Ya You And at once and enter pressure oil pipe (3) driving hind axle place's oil motor (4) rotation.Oil pump shaft whenever circles, and oil motor can change for 4 weeks.When at rough road surface or upslope, because ground drag increases, oil pump reduces liquid displacement automatically.The oil motor rotating speed reduces.Foot-operated power and foot-operated rotating speed when the bicyclist can keep straight road surface.If want the speed of a motor vehicle is slowed down, the bicyclist can reduce foot-operated rotational frequency, or stops to step and allow the car art skating.Blow a whistle as need, the right brake lever (13) of then holding with a firm grip is opened the electronic buzzer stop of annex (15) by leverage and is blown a whistle.

Braking:

When in motion process, wanting car to stop, the left brake bar (12) of can holding with a firm grip, by the effect of connecting rod, brake activation valve (1) has changed the liquid flow path direction of oil pump, makes pressure oil pipe (3), and oil return pipe (5) all is full of pressure oil, and oil motor (4) just stops operating; When oil motor (4) when stopping operating, car just is braked.Braking force derives from oil pump (2), and promptly the size of braking force is relevant with foot-operated power.

Because this vehicle speed is bigger, therefore, in the front fork parts, has increased energy disperser (19).

Automatic stepless speed change:

Because hydraulic efficiency pressure system adopts the pressure servo variable capacity oil pump with Ultra-Low Speed function, thereby the present invention can carry out automatic stepless speed change.

The present invention with external hydraulic bicycle difference is:

(1) oil pump (2) is to adopt to have Ultra-Low Speed functional imperative servo variable displacement oil pump. It has Ultra-Low Speed starting, discontinuous operation, can carry out automatic stepless speed change, and range of variables is wide, and is simple in structure, the advantage that Technical Economy is good.

(2) oil motor (4) adopts ball-and-spigot, and its volume is little, in light weight, moment of torsion big, have " flywheel " function, and braking is reliable. It can form 1: 4 speed ratio on straight road surface and oil pump (2).

(3) can utilize the power of barometric pressure dexterously as fluid compensation in the C/LOOP.

(4) whole hydraulic efficiency pressure system is synthesized in car body, and as shown in Figure 2, layout is very compact, reasonable.

After the invention process,, make the city radius can enlarge 1 times owing to 30 kilometers/hour of car scooters.Build area and can enlarge 4 times, the relative ordinary bicycle of capacity of road improves 1.5 times.Like this, improve urban residence and service conditions, further promoted the contacts of both urban and rural residents's economy, technology.Purchasing the expense of an automatic stepless speed change bicycle, only is 1/6～1/10 of 50CC motor bike.And this car has bigger benefit at energy-saving and environmental protection, body-building, aspect such as travel, earn foreign exchange.

Claims

1, a kind of speed regulation hydraulic bicycle, it is by oil pump [2], pressure oil pipe [3], oil motor [4], oil return pipe [5], the power system that reserve tube [7] constitutes with by brake activation valve [1], left brake bar [12], oil pump [2], pressure oil pipe [3], oil motor [4], the brake system that oil return pipe [5] constitutes and by reserve tube [7], unidirectional cutting down [6], unblank to cut down [8], air cuts down the oil-supplementing system that [9] constitute, and by handgrip parts [14], front fork parts [16], front-wheel [18], trailing wheel [20], the car body that saddle [22] and vehicle frame are constituted is formed, and the oil pump that it is characterized in that it is the pressure servo variable capacity oil pump [2] with Ultra-Low Speed function.

2, a kind of as the said speed regulation hydraulic bicycle of claim 1, the oil motor (4) that it is characterized in that it is a ball-and-spigot oil motor (4) with flywheel functions.

3, a kind of as claim 1 or 2,3 said speed regulation hydraulic bicycles, the vehicle frame that it is characterized in that bicycle is by pressure oil pipe (3), oil return pipe (5), reserve tube (7), preceding pipe (11) and crossbeam (23), oil circuit board (10) and rear supporting tube (24) are formed.