CN2159358Y

CN2159358Y - Dual chains bicycle with gasoline engine

Info

Publication number: CN2159358Y
Application number: CN93206339U
Authority: CN
Inventors: 万德鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-14
Filing date: 1993-03-14
Publication date: 1994-03-23
Anticipated expiration: 2003-03-14

Abstract

The utility model relates to a booster dual-chain bicycle with a gasoline engine, which is characterized in that two transmission chains are arranged on the same side of a tripod. When the bicycle is boosted by the gasoline engine, the motility is passed by a driven chain wheel (3) that is driven by a driving chain wheel (2) through a chain (6); the chain wheel (5) on the same shaft only makes sliding movement; when the bicycle is driven by the man-power foot pedal, the motility is passed by a driven chain wheel (5) that is driven by a driving cone through a chain (7) and a chain wheel (3) only makes sliding movement. The utility model does not have the shortcoming of short tyre service life like the existing friction tyres or have the problem of hard riding on the slipping mud roads; the dual-chain transmission mode not only improves the reliability of the booster bicycle and the durability of the tyre but also saves the oil consumption.

Description

Dual chains bicycle with gasoline engine

The double-stranded bicycle of spark ignition engine power-assisted belongs to vehicular traffic.

Existing spark ignition engine morpet is friction front-wheel or two kinds of type of drive of friction trailing wheel, with the mode of operation of friction tire transferring power to the bike tyre quick abrasion, and when travelling on muddy and slippery road, slippage is very big between the frictional wheel, propulsive effort is little, gasoline engine fuel consumption needs to increase on the contrary, can't travel when serious.

The purpose of this utility model is a kind of spark ignition engine morpet by double-stranded bar transferring power of design, neither has above-mentioned shortcoming, has improved the reliability of transferring power again.

For achieving the above object, the double-stranded bicycle of the design's spark ignition engine power-assisted is characterized in that: at the bicycle rear axle homonymy two driven sprockets arranged side by side (3) and (5) are housed, (3) are driven by chain (6) by the drive sprocket (2) of spark ignition engine; Foot-operated gear wheel (4) drives driven sprocket (5) by chain (7).

The mode of operation of the double-stranded bicycle of the utility model spark ignition engine power-assisted is: when spark ignition engine is worked, piston linear reciprocating motion in the spark ignition engine cylinder is passed to drive sprocket (2) to power by bent axle and change speed gear box, and by chain (6) driving driven sprocket (3), at this moment bicycle is that power-assisted is travelled, because of foot-operated gear wheel (4) does not change, driven sprocket (5) just slides; When spark ignition engine is not worked, during by foot-operated riding, gear wheel (4) drives driven sprocket (5) by chain (7), and sail bicycle behaviour Lixing, and driven sprocket this moment (3) just slides.So just realized that double-stranded bar power-assisted is travelled and the foot-operated two kinds of type of drive of riding of manpower.

The double-stranded bicycle of the design's utility model spark ignition engine power-assisted is applicable to that spark ignition engine declared power scope is at 0.4 to 0.7 kilowatt, rotating speed is 4000 rev/mins to 3000 rev/mins scopes, when road speed at 25 to 30 kilometers/hour, be provided with change speed gear box in the spark ignition engine, also can reach infinite speed variation simultaneously by control spark ignition engine throttle size.

Accompanying drawing has been described an example structure scheme drawing of the present utility model.

Fig. 1. the schematic appearance of the double-stranded bicycle of spark ignition engine power-assisted.

Fig. 2. the double-stranded bicycle transmission principle of spark ignition engine power-assisted structural representation, screw thread Decorative drum (8) is housed on the bicycle rear shaft among the figure (9), driven sprocket (3) and (5) separate with packing ring (10), be independent of each other during rotation, driven sprocket (3), (5) installation method on the rear axle Decorative drum are identical with existing bicycle chainwheel installation method, the installation method of foot-operated gear wheel (4), chain (6), (7) is with existing identical, and drive sprocket (2) is locked with spark ignition engine transmission shaft (11).No matter being stepped on by driving of spark ignition engine power-assisted or rider changes crank shaft with foot-operated driving, sprocket wheel (3) or (5) transferring power, and another sprocket wheel is transferring power not, and it is as existing bicycle coastiong, and driven sprocket has one sliding all the time.

Claims

1, the double-stranded bicycle of a kind of spark ignition engine power-assisted, form by spark ignition engine, double-stranded bar, double-stranded wheel, vehicle frame, feature of the present utility model is: the drive sprocket (2) of spark ignition engine (1) drives driven sprocket (3) by chain (6), and foot-operated gear wheel (4) drives driven sprocket (5) by chain (7).

2, according to the double-stranded bicycle of the spark ignition engine power-assisted of claim 1, it is characterized in that: the homonymy of bicycle rear shaft is equipped with two driven sprockets (3) and (5) side by side.