CN2622069Y

CN2622069Y - Pedal transmission of bicycle

Info

Publication number: CN2622069Y
Application number: CNU032180624U
Authority: CN
Inventors: 盖忠金
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-09
Filing date: 2003-06-09
Publication date: 2004-06-30
Anticipated expiration: 2013-06-09

Abstract

The utility model discloses a bicycle pedal transmission device. The transmission device comprises a bottom bracket axle (10), which is equipped with a bottom bracket cup (10), a steel ball (8) and a bottom bracket flat (9). A residual groove is arranged at a tail end of the bottom bracket axle (10). A center of the bottom bracket axle (10) is connected with a prepared central hole (12) at a crank rod (11). The other end of the crank rod (11) is connected with a pedal. The bicycle pedal transmission device is characterized in that a fixing sleeve seat (5) for a bottom bracket is equipped at the bottom bracket axle (10) and is provided with a residual groove; a bearing (4) is equipped inside the residual groove; a rotating gear plate (1) and a flange (2) are equipped and fixed at the fixing sleeve seat (5) for the bottom bracket with an internal-angle screw (3). The residual groove at the fixing sleeve seat (5) for the bottom bracket corresponds to a central residual groove of the rotating gear plate (1); the bearing (4) is fastened with a nut (6); thus, the utility model is a bicycle pedal transmission device, which requires little strength but is provided with high capability of climbing.

Description

A kind of bicycle pedals driving device

One, technical field:

The utility model relates to technical field of bicycles, is a kind of bicycle pedals driving device specifically.

Two, background technology:

As everyone knows, bicycle is the simplest the most general current instrument, be applicable to particularly for the such populous nation of China, be not under the good situation at traffic from little various age brackets until old, bicycle is the walking-replacing tool of people's first-selection especially, mainly there is following weak point in the driving device of existing bicycle, and consumption power is big, and the transformation of energy of riding instead of walk is little, it is low to climb empty ability, and it is not laborsaving that variable speed bicycle is economized merit.

Three, summary of the invention:

The purpose of this utility model is intended to overcome the deficiency of above-mentioned prior art, and provide a kind of efficient joint power, easy to use, the unique novel bicycle pedals driving device of structure, it is big mainly to solve existing bicycle drive consumption power, the transformation of energy of riding instead of walk is little, and it is low to climb empty ability, and variable speed bicycle is economized not labour-saving problem of merit.

In order to achieve the above object, the utility model is achieved in that a kind of bicycle pedals driving device, it comprises bottom bracket axle 10, establish bottom bracket cup 7 on the bottom bracket axle 10, steel ball 8, axis flat 9, establish remaining groove 17 at the end of bottom bracket axle 10, box out on the center of bottom bracket axle 10 and the toggle-action lever 11 and 12 be connected, the other end of toggle-action lever 11 is connected with foot-operated, its special character is to establish the axis fixed hub and sits 5 on bottom bracket axle 10, on axis fixed hub seat 5, establish remaining groove, in remaining groove, establish bearing 4, on axis fixed hub seat 5, establish rotary fluted disc 1 (chain wheel) and flange 2, fastening with interior angle screw 3, remaining groove is corresponding with the remaining groove in center of rotary fluted disc 1 (chain wheel) on the axis fixed hub seat 5, uses nut 6 fastening bearings 4 again.

For the further above-mentioned purpose that realizes, a kind of bicycle pedals driving device of the present utility model, its described toggle-action lever 11 is for what extend, and the end of toggle-action lever 11 is established and is boxed out 13, is connected with the stressed fulcrum shaft 18 of rotary fluted disc 1 (chain wheel); Outside its described bottom bracket cup 7 screw is arranged.

Compared with the prior art a kind of bicycle pedals driving device described in the utility model has following good effect: 1, owing to adopt the toggle-action lever of lengthening, according to lever principle, its consumption power is little, can improve the work efficiency of bicycle, reduces the labour intensity of riding instead of walk; 2, climb empty ability height; 3, novelty simple in structure.

Four, description of drawings:

Fig. 1-structural representation of the present utility model;

The A-A cutaway view of Fig. 2-Fig. 1;

The front elevation of the toggle-action lever of Fig. 3-Fig. 1.

Five, the specific embodiment:

In order to understand better and to implement, provide specific embodiment below in conjunction with accompanying drawing and describe a kind of bicycle pedals driving device of the utility model in detail.

Embodiment 1, referring to Fig. 1,2,3,4, adopt steel plate, seamless tube is through processing, punching press, cut into rotary fluted disc 1, flange 2, bearing 4 is placed in the remaining groove in center of rotary fluted disc 1, fastening with interior angle screw 3, it is installed in the axis fixed hub sits on 5, remaining groove is corresponding with the remaining groove in the center of rotary fluted disc 1 on the axis fixed hub seat 5, by nut 6 fastening bearings 4, form once and fix, install bottom bracket cup 7, screw is arranged outside the bottom bracket cup 7, play nut 6 secondaries fasteningly, scurry bottom bracket axle 10, offer remaining groove 17 at the end of bottom bracket axle 10, steel ball 8 is put into bottom bracket cup 7, flat (left side) 9 of the axis of screwing on assembles another side, 12 is connected with bottom bracket axle 10 centers boxing out in the toggle-action lever 11 of lengthening then, boxing out of toggle-action lever 11 ends of lengthening 13 joined with the stressed fulcrum shaft 18 of rotary fluted disc, standing screw put on the remaining groove 17 of bottom bracket axle tighten, load onto foot-operatedly, the whole erection process finishes.

A kind of bicycle pedals driving device described in the utility model, during use, when foot-operated exerting oneself, by toggle-action lever 11 power is transferred to the fixedly stress point axostylus axostyle of rotary fluted disc 1, the bicycle pedals revolution moved for 1 week, and rotary fluted disc (chain wheel) also rotated for 1 week simultaneously, make fulcrum by toggle-action lever 11, bottom bracket axle 10, power is passed to rotary fluted disc, thereby change stressed size, reach the purpose of joint power.

A kind of bicycle pedals driving device described in the utility model also can amplify the trailing wheel fluted disc and dwindle, and forms the rear tooth disk speed change.

Claims

1, a kind of bicycle pedals driving device, it comprises bottom bracket axle (10), establish bottom bracket cup (7) on the bottom bracket axle (10), steel ball (8), axis flat (9), establish remaining groove (17) at the end of bottom bracket axle (10), box out on the center of bottom bracket axle (10) and the toggle-action lever (11) (12) be connected, the other end of toggle-action lever (11) is connected with foot-operated, it is characterized in that on bottom bracket axle (10), establishing the axis fixed hub and sit (5), on axis fixed hub seat (5), establish remaining groove, in remaining groove, establish bearing (4), on axis fixed hub seat (5), establish rotary fluted disc (1) and flange (2), fastening with interior angle screw (3), the axis fixed hub is sat (5), and upward remaining groove is corresponding with the remaining groove in center of rotary fluted disc (1), with the fastening bearing of nut (6) (4).

2, by the described a kind of bicycle pedals driving device of claim 1, it is characterized in that described toggle-action lever (11) for what extend, the end of toggle-action lever (11) is established box out (13), is connected with the stressed fulcrum shaft of rotary fluted disc (1) (18).

3,, it is characterized in that screw is arranged outside the described bottom bracket cup (7) by claim 1 or 2 described a kind of bicycle pedals drivings device.