CN2177675Y - Efficient labour-saving bicycle - Google Patents

Abstract

The utility model relates to a bicycle, particularly an efficient labour-saving bicycle which is additionally provided with an accelerating labour-saving device to replace prime gear transmission mechanisms. The accelerating labour-saving device arranged on a connecting rod positioned between a pedal rod and the flywheel of a rear wheel mainly comprises a combined board, a planet gear, a pulley wheel, a curved rod, and a chain wheel. The utility model makes full use of work used in the circumferential tread and raises the swinging frequency of the curved rod by the blades of the planet wheel and the pulley wheel, accelerating the rotary speed of the flywheel. The labour saving of the efficient labour-saving bicycle reaches about 30% and the speed increasing reaches about 20% through contrast test.

Description

Efficient labour-saving bicycle

The utility model relates to bicycle, particularly a kind of high-effective and labour-saving bicycle that is provided with an acceleration force-reducing device between foot-driven lever and rear wheel flywheel.

Traditional bicycle generally adopts gear drive to drive rear wheel and rolls, though its structure is simple, in 360 ° circumferential standing process, power consumption is bigger, has produced effort and slow problem thus.

The purpose of the utility model is to change the gear drive of standard bicycle, and a kind of acceleration force-reducing device of setting up between foot-driven lever and rear wheel flywheel is provided, and improves the high-effective and labour-saving bicycle of effective power.

The task that the utility model proposed is finished by following technical proposals:

A kind of high-effective and labour-saving bicycle comprises front vehicle wheel, rear wheel, foot-driven lever and connecting rod.On the connecting rod between foot-driven lever and the rear wheel flywheel, be provided with an acceleration force-reducing device of mainly forming by compoboard, satellite gear, pulley, curved bar, sprocket wheel.

The purpose of the utility model is further realized by following technical scheme: the satellite gear that quickens in the force-reducing device is installed between two foot-driven levers, is provided with chain between sprocket wheel and the bicycle rear wheel flywheel.Curved bar one end is connected with pulley, and the other end drives the chain flying wheel through chain

The fulcrum that quickens the curved bar in the force-reducing device is fixed on the bent plate of location by fix shaft, one end of curved bar is equipped with a pulley that is meshed with planet wheel blade, the other end is equipped with chain, be fixed in the fix shaft place after this chain is walked around the chain flying wheel and extension spring is connected, location bent plate and chain flying wheel all are loaded on the compoboard.

The satellite gear, pulley, curved bar, chain, extension spring, the chain flying wheel that quicken in the work-saving device are double two covers.

Foot-driven lever of the present utility model drives the satellite gear rotation, the asterophyllite of satellite gear and pulley action in circular movement, make the constantly upper and lower swing of curved bar wheel, drive the rotation of chain flying wheel by chain again, last, by the chain gear bicycle rear flywheel on the sprocket wheel.In foot-operated process, if use two cover force-reducing mechanisms, can utilize each effect in the treadle circular movement fully, power consumption is greatly reduced, through contrast test, physical demands can reduce by 30%, and speed can accelerate 20%, thereby has realized quickening laborsaving purpose.

Below, the utility model is described in further detail for embodiment in conjunction with the accompanying drawings.

Fig. 1 is the utility model structural representation;

Fig. 2 quickens the structural representation of force-reducing device part for the utility model;

Fig. 3 is the A-A section-drawing that quickens force-reducing device among Fig. 2;

Fig. 4 is for quickening the location bent plate front view in the force-reducing device;

Fig. 5 is the birds-eye view of location bent plate among Fig. 4;

Fig. 6 is for quickening the compoboard front view in the force-reducing device;

Fig. 7 is the birds-eye view of compoboard among Fig. 6.

The high-effective and labour-saving bicycle that the utility model is designed is on prior art traditional bicycle power driving mechanism to be improved.On the connecting rod 3 between foot-driven lever 1 and the rear wheel flywheel 2, set up one and quickened force-reducing device, removed gear of the prior art.Quicken force-reducing device and mainly comprise double coaxial mounted satellite gear 4, pulley 5, curved bar 6, chain flying wheel 7 and a sprocket wheel 10.Two satellite gears 4 are between two foot-driven levers 1, the relative crossover location of the asterophyllite 4 of two satellite gears ' then be in, two pulleys 5 are contained in an end of two curved bars 6 respectively, and separately with the asterophyllite 4 of satellite gear ' be meshed, the fulcrum of two curved bars 6 is fixed on the bent plate 9 of location by fix shaft 8, location bent plate 9 is connected with compoboard 11 by screw, the other end of two curved bars 6 respectively is equipped with a chain 12, chain 12 is walked around chain flying wheel 7 respectively, be connected with two extension springs 13 through shackle, the other end of extension spring 13 is connected on the fix shaft 8 at curved bar fulcrum place, and sprocket wheel 10 is connected by chain 12 with rear wheel flywheel 2.Rear wheel flywheel 2 is located on the compoboard 11.Compoboard is connected with connecting rod 3 electric welding.

Rider's bipod application of force drives satellite gear 4 through foot-driven lever 1 and rotates, and glides with asterophyllite 4 ' ingear pulley 5 of satellite gear, makes on the other end of curved bar 6 to move, and chain 12 drives chain flying wheels 7 and rotates forward.The sprocket wheel 10 that rotates synchronously rolls rear wheel by the transmission of chain 12 thereupon, after asterophyllite 4 ' rotation, because of the elastic reset of extension spring 13, retracts reposition on the pulley.Then, glide, begun second cyclic process with following a slice asterophyllite 4 ' engagement.Owing to adopt two covers to quicken force-reducing mechanism, the merit of being executed in the foot-driven lever circular movement is fully utilized, simultaneously, accelerated the rotative speed of bicycle.

Claims (3)

1, a kind of high-effective and labour-saving bicycle, comprise front-wheel, trailing wheel, foot-driven lever and connecting rod, it is characterized in that the connecting rod between foot-driven lever and the back flying wheel is provided with one mainly by compoboard, the acceleration work-saving device that satellite gear, pulley, curved bar and sprocket wheel are formed, satellite gear is installed between two foot-driven levers, be provided with chain between sprocket wheel and the bicycle rear flywheel, curved bar one end is connected with pulley, and the other end drives the chain flying wheel through chain.

2, high-effective and labour-saving bicycle according to claim 1, it is characterized in that described curved bar is fixed on the bent plate of location by fix shaft, pulley is meshed with the asterophyllite of satellite gear, chain pile warp chain flying wheel on the curved bar be fixed in the fix shaft place after extension spring is connected, location bent plate and chain flying wheel all are fixed on the compoboard.

3, high-effective and labour-saving bicycle according to claim 1 and 2 is characterized in that satellite gear, pulley, curved bar, chain, extension spring, the chain flying wheel in the described acceleration work-saving device is double two covers.

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