CN2617673Y

CN2617673Y - Two-functional lateral transmission of electric bicycle

Info

Publication number: CN2617673Y
Application number: CNU032427417U
Authority: CN
Inventors: 蔡荣展
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-27
Filing date: 2003-03-27
Publication date: 2004-05-26
Anticipated expiration: 2013-03-27

Abstract

The utility model relates to a convertible single side type driving device for electric bicycle, a front wheel and a rear wheel are arranged on a bicycle frame, a front chain wheel is pivoted on the frame via an axis rod. A pedal is arranged at two ends of the axis rod; a rear chain wheel is arranged at one end of a pivot shaft in the center of the rear wheel via a single directional ratchet group; a host chain is connected between the front chain wheel and the rear chain wheel; a driving chain wheel is arranged on the pivot shaft in the center of the rear wheel via a single directional ratchet group at same side of the rear chain wheel; a motor is equipped with an accumulator to provide power; a driving chain wheel is arranged at the power output terminal; a driving chain is used for connection between the driving chain wheel and the power output end of the motor. The utility model enables an electric driving wheel and the rear wheel shaft to be assembled on the same side of the rear chain wheel, which facilitates assembly and optimizes arrangement.

Description

The monolateral transmission device of electric bicycle dual-purpose type

Technical field

The utility model relates to a kind of transmission device of Electrical Bicycle, relates in particular to a kind of driving direction unanimity that makes, and avoids assembly defect, and makes spatial allocation reach the monolateral transmission device of optimized electric bicycle dual-purpose type.

Background technology

Early stage bicycle mainly is designed to by manpower foot-driven mechanism, and along with science and technology is constantly progressive, can laborsavingly drive bicycle easily for making people, and the someone succeeds in developing electric bicycle.Since electric bicycle was asked the city, each relevant dealer promptly developed multiple transmission device, chose as required for people.

Existing electric bicycle transmission device design, chain wheel drive and back chain wheel drive two major types before generally can dividing into, the mechanism design of wherein relevant back chain wheel drive, be installed in the back sprocket wheel and a chain that connects between forward and backward sprocket wheel of rear vehicle shaft one side except that having a preceding sprocket wheel, that connects pedal, and install a power wheel in other side of rear vehicle shaft, and connect electro-motor by transmission component.Aforementioned power wheel can be members such as sprocket wheel, bevel gear, and transmission component then is the transmission shaft lever of chain or tool bevel gear etc., and whereby, constituting one can select bicycle electronic or that the manpower mode drives for the rider.

The transmission device of chain wheel drive behind the aforementioned electric bicycle, though be a kind of have concurrently electronic, manpower drives the transmission device of bicycle, yet, this transmission device is to connect the power wheel of electro-motor and the two ends that the back sprocket wheel is mounted on rear vehicle shaft respectively, so make this transmission device integral body present numerous and diverse form, and power wheel, has single direction ratchet in the back sprocket wheel with the rear vehicle shaft winding, therefore, assembler must give special heed to assembling arbor wheel two ends winding power wheel, the rotation direction of two single direction ratchet in the back sprocket wheel, otherwise one has careless mistake, this mechanism can need disassemble because of the transmission direction mistake and re-assembly, and causes the inconvenience on the assembling operation.

Moreover, be located at the rear wheel both sides because of the driving chain wheel and the back chain wheel set that connect electro-motor, make rear wheel both sides limited space, the inconvenience that causes subsidiary's group such as brake device to establish, and in use, each inter-agency generation is disturbed.

The utility model content

In order to overcome the above-mentioned shortcoming that existing electric bicycle transmission device exists, the utility model provides a kind of electric bicycle dual-purpose type monolateral transmission device, sprocket wheel one was located at rear vehicle shaft one side on the same group after it made electronic power wheel and manpower, be beneficial to assembling operation, and make spatial allocation reach optimization.

The technical scheme that its technical matters that solves the utility model adopts is:

The monolateral transmission device of a kind of electric bicycle dual-purpose type, this electric bicycle are to organize respectively to establish front vehicle wheel and rear wheel before and after a vehicle frame; It is characterized in that, comprising: sprocket wheel before, be hubbed in the bicycle frame by axostylus axostyle, the axostylus axostyle two ends are provided with pedal; One back sprocket wheel is mounted on pivot one end at rear wheel center by a single direction ratchet; One main chain bar is to be connected between preceding sprocket wheel and the back sprocket wheel; One driving chain wheel is mounted on by a single direction ratchet on the pivot at rear wheel center, with back sprocket wheel homonymy; One electro-motor is provided with the storage battery that power is provided, and its clutch end has a drive sprocket; One driving chain is to be connected between the drive sprocket of driving chain wheel and electric motor power mouth.

Whereby, utilize driving chain wheel and back chain wheel set to be located at rear wheel the same side, make the driving direction unanimity of the two, and allow the rear wheel space in addition provide subsidiary's group such as brake device to establish in the space of side, make its spatial allocation reach optimized state, and then provide a transmission device that has more practicality to design.

The beneficial effects of the utility model are that sprocket wheel one was located at rear vehicle shaft one side on the same group after it made electronic power wheel and manpower, was beneficial to assembling operation, and made spatial allocation reach optimization.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a main sight plane scheme drawing of the present utility model.

Fig. 2 is a schematic top plan view of the present utility model.

The number in the figure explanation:

10 vehicle frames, 11 front vehicle wheels

12 rear wheels, 121 pivots

Sprocket wheel 201 axostylus axostyles before 20

202 pedals, 21 back sprocket wheels

22 main chain bars

30 electro-motors, 31 storage batterys

32 drive sprockets, 33 driving chain wheels

34 driving chains

The specific embodiment

The monolateral transmission device specific embodiment of the utility model electric bicycle dual-purpose type, see also Fig. 1, shown in Figure 2, electric bicycle shown in the figure is to organize respectively in a vehicle frame 10 front and back ends to establish front vehicle wheel 11 and rear wheel 12, and the transmission device that is installed on this electric bicycle comprises:

Sprocket wheel 20 before one is hubbed in the bicycle frame 10 by axostylus axostyle 201, and its axostylus axostyle two ends are provided with pedal 202, tramples for the people and drives preceding sprocket wheel 20 rotations;

One back sprocket wheel 21 is mounted on pivot 121 1 ends at rear wheel 12 centers by a single direction ratchet;

One main chain bar 22 is connected between preceding sprocket wheel 20 and the back sprocket wheel 21;

One electro-motor 30 is to provide power by storage battery 31, and clutch end has a drive sprocket 32;

One driving chain wheel 33 is mounted on by a single direction ratchet on the pivot 121 at rear wheel 12 centers, with back sprocket wheel 21 homonymies;

One driving chain 34 is to be connected in 32 of the drive sprockets that driving chain wheel 33 and electro-motor 30 power go out end.

The utility model in use, see also shown in Figure 1, the rider can freely select manpower or electronic mode to drive bicycle, wherein, when driving bicycle with manpower, be pedal 202 with sprocket wheel 20 before foot-operated the connection, before driving sprocket wheel 20 through main chain bar 22 drive on rear wheels 12 pivots 121 after sprocket wheel 21, bicycle is advanced; When driving bicycle, then utilize the driving chain wheel 33 of electro-motor 30 on driving chain 34 drive rear wheels 12 pivots 121, bicycle is advanced in electronic mode.

The utility model and existing transmission mechanism relatively have following advantage:

1, after the drive sprocket of the utility model utilization connection electro-motor and rear chain wheel set are located at The design of wheel homonymy, it is consistent to make the two be driven in rotation direction, and then avoids because of assembly defect Need disassemble the puzzlement that re-assemblies.

2, after the drive sprocket of the utility model utilization connection electro-motor and rear chain wheel set are located at The design of wheel homonymy can be vacated the space of rear wheel opposite side, and it is attached to be beneficial to brake device etc. Mechanism's group is established on it, makes its space configuration reach optimization.

In sum, the utility model borrows the structural design of its innovation really can improve existing rear sprocket wheel The shortcoming of two final drive gears design, and then a kind of driver handy, practical function that has more is provided The structure design has novelty, creativeness, practicality, meets the important document of new patent, so in accordance with the law File an application.

Claims

The monolateral transmission device of a kind of electric bicycle dual-purpose type, this electric bicycle are to organize respectively to establish front vehicle wheel and rear wheel before and after a vehicle frame; It is characterized in that, comprising:

Sprocket wheel before one is hubbed in the bicycle frame by axostylus axostyle, and the axostylus axostyle two ends are provided with pedal;

One back sprocket wheel is mounted on pivot one end at rear wheel center by a single direction ratchet;

One main chain bar is to be connected between preceding sprocket wheel and the back sprocket wheel;

One driving chain wheel is mounted on by a single direction ratchet on the pivot at rear wheel center, with back sprocket wheel homonymy;

One electro-motor is provided with the storage battery that power is provided, and its clutch end has a drive sprocket;

One driving chain is to be connected between the drive sprocket of driving chain wheel and electric motor power mouth.