CN2317166Y

CN2317166Y - Improved front wheel driving structure for electric bicycle

Info

Publication number: CN2317166Y
Application number: CN97228810U
Authority: CN
Inventors: 洪进廉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-28
Filing date: 1997-10-28
Publication date: 1999-05-05
Anticipated expiration: 2007-10-28

Abstract

The utility model provides an improved front wheel driving structure for electric bicycles. The utility model is composed of an auxiliary frame, a motor set, a circuit board, a cover body and a spring retracting device composed of an n-shaped stop block whose central groove is provided with a perforated stop part and an elastic element. The elastic element forward extends to be connected with a rear wall of the motor set. A pulling back line body is penetrated in the perforated stop part. One end of the pulling back line body is fixed on the rear wall of the motor set, and the other end of the pulling back line body extends obliquely to be fixed on a handle. Thus the driving structure can be caused to achieve the practical purposes of simple and convenient installation, use space saving and convenient operation with a semi-automation function.

Description

Electrical Bicycle f-w-d structural improvement

The utility model provides a kind of Electrical Bicycle f-w-d structural improvement, it includes an auxiliary frame, system is positioned at before the cycle frame central siphon and is articulated on vehicle frame central siphon and the front fork stem, and its front end apical margin articulates a groups of motors, plays unloading device in front end lower edge affixed again; One groups of motors is that motor is organized roller formation admittedly via transmission; One circuit card; One lid, it lies in to establish on the auxiliary frame and is fixed on the vehicle frame central siphon, and tiltedly extends lid down to frontal arc and cover groups of motors and circuit card, and in be provided with a mudwing that protrudes out forward near the tyre surface place.

Press, it is that design is on trailing wheel mostly for the bicycle drive configuration of commonly using, for example be installed in the below of back seat rack, and allow the power resources device be arranged on the rack, so design can produce following sorry: one, the exercisable space of bicycle were just limited originally, when being designed to as this moment, take the back seat rack again, make the space utilization still less; Its two, actuating device is installed in auxiliary support body that back seat need be more assisting the whole device of installing and locating, and the back seat space is narrower, installation process position degree of difficulty is higher; Its three, the pattern classification of bicycle has a lot, the structure of its vehicle frame is not quite similar, so auxiliary frame and drive configuration all distinctly remove design modification for single group, therefore can be and waste unit design mental and physical efforts.

That is, the purpose of this utility model provides a kind of Electrical Bicycle f-w-d structural improvement, reaches drive configuration simple and convenient, saving usage space and semi-automatic feature operation practical purpose easily is installed.

The purpose of this utility model reaches by following characteristics, Electrical Bicycle f-w-d structural improvement of the present utility model is that the actuating device of whole group is installed in before the cycle frame central siphon oblique upper with front fork stem in the mode that does not take up space, it comprises that one plays unloading device, it is the  type stop block that is provided with perforation stopper and elastic element by a drop-center, and elastic element extends forward and is connected in wall after the groups of motors, being provided with one again retracts the line body and is arranged in the perforation stopper, it retracts the rear wall that line body one end is fixed in groups of motors, establishes on the other end then extends tiltedly to be fixed on the handle.Constitute specific combination structure design like this.

Further understand and understanding for having, cooperate following diagram to describe in detail now as the back the purpose of this utility model, technical characterictic and effect:

Fig. 1: be bicycle unitary side view of the present utility model.

Fig. 2: be the local schematic side view 1 of bicycle drive configuration of the present utility model.

Fig. 3: be the local schematic side view 2 of bicycle drive configuration of the present utility model.

Fig. 4: be bicycle drive configuration front elevation of the present utility model.

Fig. 5: be bicycle drive configuration section-drawing 1 of the present utility model.

Fig. 6: be bicycle drive configuration section-drawing 2 of the present utility model.

At first, please consult Fig. 1 earlier, shown in 2,4, the utility model provides a kind of Electrical Bicycle f-w-d structural improvement, and it includes:

One auxiliary frame 10 is to be positioned at before the cycle frame central siphon 11 and to be articulated on vehicle frame central siphon 11 and the front fork stem 12, and its front end apical margin articulates a groups of motors 20, plays unloading device 50 at front end lower edge affixed again; One groups of motors 20, motor 21 are organized a roller 22 admittedly via transmission and are constituted; One circuit card 30; One lid 40, it is establishing admittedly on vehicle frame central siphon 11 above auxiliary frame 10, and tiltedly extend lid down to frontal arc and cover groups of motors 20 and circuit card 30, and be provided with a mudwing that protrudes out forward 41 near the tyre surface place;

It is characterized in that:

One plays unloading device 50, it is provided with the  type stop block 51 of perforation stopper 53 and elastic element 54 by a drop-center, and elastic element 54 extends the rear wall that is connected in groups of motors 20 mutually forward, be provided with again one retract line body 55 be located in the perforation stopper 53, it retracts the rear wall that line body 55 1 ends are fixed on groups of motors 20, establish admittedly on handle on the other end then extends tiltedly, impel it to reach drive configuration simple and convenient, saving usage space and semi-automatic feature operation practical purpose easily is installed; The driving section of groups of motors 20 can have the rack 26 of horizontal groove and elastic element 28 to be constituted by an axostylus axostyle 25 serial connections one by two

scroll wheels

23,24 again, and axostylus axostyle 25 terminal affixed rollers 22, other is provided with a front end is that the drawing article 29 of side C type is other at rack 26, make its C type opening correspondence horizontal groove 27, reach the effect of changeable generation power-transfer clutch function.

Above-mentionedly the relevant position of structure of the present utility model, feature and combination thereof is done a detailed description, believe your juror is to the existing understanding to a certain degree of the utility model, for making the purpose of this utility model, feature and effect more distinguished, below now with regard to its effect, advantage explanation as back of using situation and expection to reach:

By the utility model design-calculated Electrical Bicycle f-w-d structural improvement, when bicycle under steam, the power resources of starter motor group 20 drive roller 22, because of the rotating speed of roller 22 greater than tire rotational speed, make its roller 22 drive tyre surface and double tangential forces, and it must be by retracting the moving backward so that groups of motors 20 compressing elastic elements 54 are subject to stop block 51 and make roller 22 near the conflict tyre surface of line body 55, promptly reach the location and be unlikely position deviation or the situation too of producing, otherwise reply signal when circuit card 30 and cut away power driven when output, groups of motors 20 is by the bullet tension force of elastic element 54 and the tangential disengaging effect of tire and become from tire protector, to wait for the next time of start again; An end of its auxiliary frame 10 is established solid on front fork stem 12 again, make its whole group actuating device follow moving along with the direction of tire, handle, its roller 22 and the correspondence position of tyre surface are out of question, and the whole installation simple and convenient of being brought is not subject to specific car type and reaches semiautomation operation practical purpose easily.

Other is by the rack 26 of groups of motors 20, the drawing article 29 that elastic element 28 and front end are the C type cooperates start, make its situation of stirring by the bullet Zhang Xiaoguo and the drawing article 29 of elastic element 28, the situation of utilizing the side C type front end of drawing article 29 to cooperate with the horizontal groove 27 of rack 26, make it reach the advance hollow chamber 241 of being inserted in driven scroll wheel 24 of rack 26 and reach the situation that drives axostylus axostyle 25 turn rollers 22, or drawing article 29 driven gear bars 26 withdraw from the hollow chamber 241 of driven scroll wheel 24, reach the situation of leaving drive, and then form the effect of power-transfer clutch function.

＜figure number explanation〉auxiliary frame 10 vehicle frame central siphons 11 front fork stems 12 groups of motors 20 motors 21 rollers 22 initiatively scroll wheels 23 axostylus axostyles 25 driven scroll wheel 24 racks 26 hollow chamber 241 horizontal groove 27 elastic elements 28 drawing articles 29 circuit boards 30 elastic elements 28 lids 40 dashboards 41 play unloading devices 50 stop blocks 51 grooves 52 perforation stoppers 53 elastic elements 54 and retract line body 55

Claims

1. Electrical Bicycle f-w-d structural improvement includes:

One auxiliary frame is to be positioned at before the cycle frame central siphon and to be articulated on vehicle frame central siphon and the front fork stem, and its front end apical margin articulates a groups of motors, and is affixed in the front end lower edge again;

One plays unloading device;

One groups of motors is that motor is organized roller formation admittedly via transmission;

One circuit card;

One lid, it lies in to establish on the auxiliary frame and is fixed on the vehicle frame central siphon, and tiltedly extends lid down to frontal arc and cover groups of motors and circuit card, and in be provided with a mudwing that protrudes out forward near the tyre surface place;

It is characterized in that:

One plays unloading device, it is the  type stop block that is provided with perforation stopper and elastic element by a drop-center, and elastic element extends forward and is connected in wall after the groups of motors, being provided with one again retracts the line body and is arranged in the perforation stopper, it retracts the rear wall that line body one end is fixed in groups of motors, establishes on the other end then extends tiltedly to be fixed on the handle.

2. according to the described Electrical Bicycle f-w-d of claim 1 structural improvement, it is characterized in that, the driving section of groups of motors can have the rack of horizontal groove and elastic element to be constituted by axostylus axostyle serial connection one by two scroll wheels, and the terminal affixed roller of axostylus axostyle, other be provided with a front end be the drawing article of side C type by rack, make its C type opening correspondence horizontal groove.