CN202115673U

CN202115673U - Body-building bicycle

Info

Publication number: CN202115673U
Application number: CN2011202358427U
Authority: CN
Inventors: 张本君
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2012-01-18
Anticipated expiration: 2021-07-06

Abstract

The utility model relates to a body-building bicycle, which comprises a rear axle, a rear fork, a small chain wheel of a rear axle, a beam, a chain and a pedal axle flywheel. The small chain wheel of the rear axle is mounted on the rear axle of the bicycle, the pedal axle flywheel is mounted on a pedal axle of the bicycle, a large gear of the rear axle is further mounted on the rear axle of the bicycle, and a central axle is fixedly connected onto the beam of the bicycle and provided with a central axle transmission wheel. When riding the bicycle, the rider exerts force to pedal forwards or backwards so that muscles of legs are exercised, and the purposes of replacing walking and body building are achieved. If the ride is unclear about a road and cannot foresee an abrupt slope or heavy wind occurs abruptly, the rider can regulate speed at once so that riding is facilitated and labor-saving. Besides, the body-building bicycle is convenient for variable-speed advancing freely and safely in a street or lane with many people.

Description

Body-building bicycle

Technical field

The utility model belongs to the bicycle field, relates to a kind of body-building bicycle.

Background technology

Along with development of times, more and more people's theories are not by bike just regarded bicycle as a kind of independent walking-replacing tool, improve the health a kind of peculiar trip instrument of taking exercises and more regard it as.Existing bicycle can only pedal forwards the application of force advance, and can not pedal rearward the application of force advance, can not satisfactorily reach the ideal effect of taking exercises.

Existing variable speed bicycle forwards application of force speed change is advanced, and wants the manual governing wheel to cooperate with pin during speed change and realizes, steamboat is being transferred to bull wheel or bull wheel is transferred in the process of steamboat, needs a time period to accomplish, immediately speed change.

Summary of the invention

The purpose of the utility model is to provide a kind of body-building bicycle, but pedal forwards the application of force or rearward the application of force advance, make reach by bike ride instead of walk with the body-building dual purpose, it is convenient and strength-saving to ride, safe and practical.

The technical scheme that the utility model adopts: a kind of body-building bicycle; Comprise rear axle, back vent, rear axle minor sprocket, crossbeam, chain, pedal axle flywheel; The rear axle minor sprocket is installed on the rear axle of bicycle, pedal axle flywheel is installed on the pedal axle of bicycle, the rear axle big gear wheel also is installed on the rear axle of bicycle; On the crossbeam of bicycle, be fixedly connected with an axis, an axis power wheel is installed on the axis.

The axis sprocket wheel and the transmission gear of described axis power wheel are structure as a whole.

Described rear axle minor sprocket, axis sprocket wheel, pedal axle flywheel and chain engages, described rear axle big gear wheel and transmission gear engagement constitute the rotating variable-speed drive.

On the described rear axle; Being positioned at rear axle big gear wheel installed inside has the rear axle stirrup of a setting, on axis, is positioned at the axis stirrup that the transmission gear installed inside has a setting; The bottom of axis stirrup and rear axle stirrup connects the two ends of horizontal stirrup respectively, and top connects firmly on back vent respectively.

Described rear axle minor sprocket is gear-like or chain colyliform, and the rear axle big gear wheel is chain colyliform or gear-like, and matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.

The axis sprocket wheel of described axis power wheel is positioned at the inboard or the outside, and transmission gear is positioned at the outside or inboard, and matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.

The positive beneficial effect that the utility model had:

1. indeterminate at road, in the time of can not predicting abrupt slope or projection strong wind in advance, speed governing at once, pedal forwards the application of force or rearward the application of force advance, it is convenient and strength-saving to ride;

2. in many streets of people or lane, be convenient to free safe speed change and advance, dodge the pedestrian;

3. speed change cooperates change without trick, and the speed change application of force is advanced before and after the pedal at any time, tempers leg muscle, gains in strength, and reaches the ideal effect of taking exercises, and realizes the body-building theory that trip is by bike taken exercises, and the walking-replacing tool of practicality is provided.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the transmission structures scheme drawing of the utility model;

Fig. 3 is the birds-eye view of Fig. 2.

The specific embodiment

With reference to Fig. 1, Fig. 2, shown in Figure 3; A kind of body-building bicycle; It is improvement to existing bicycle; The related components of improvement part mainly comprises rear axle 1, back vent 2, rear axle minor sprocket 3, rear axle big gear wheel 4, axis 5, axis power wheel 6, axis stirrup 7, crossbeam 8, chain 9, pedal axle flywheel 10, pedal axle 11, rear axle stirrup 12, horizontal stirrup 13 etc., and all the other are the structure of prior art bicycle.

The utility model is equipped with separately independently a rear axle big gear wheel 4 and a rear axle minor sprocket 3 on the rear axle 1 of bicycle; On the crossbeam 8 of bicycle, be fixedly connected with an axis 5, an axis power wheel 6 is installed on the axis 5, axis power wheel 6 comprises the axis sprocket wheel 601 that is positioned at the outside and is positioned at inboard transmission gear 602, is structure as a whole; One pedal axle flywheel 10 is installed on the pedal axle 11 of bicycle; Described rear axle minor sprocket 3, axis sprocket wheel 601, pedal axle flywheel 10 and chain 9 engagements, described rear axle big gear wheel 4 and transmission gear 602 engagements constitute travelling gear thus, realize the transmission of forward and backward speed change.

In order to reinforce travelling gear; On rear axle 1; Being positioned at rear axle big gear wheel 4 installed inside has the rear axle stirrup 12 of a setting, on axis 5, is positioned at the axis stirrup 7 that transmission gear 602 installed inside have a setting; The bottom of axis stirrup 7 and rear axle stirrup 12 connects the two ends of horizontal stirrup 13 respectively, and top connects firmly respectively on back vent 2.

Described rear axle minor sprocket 3 can be changed with rear axle big gear wheel 4, that is, rear axle minor sprocket 3 can be gear-like or chain colyliform, and rear axle big gear wheel 4 can be chain colyliform or gear-like; Matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.

The axis sprocket wheel 601 and the transmission gear 602 of described axis power wheel 6 also can be changed, that is, axis sprocket wheel 601 can be positioned at the inboard or the outside, and transmission gear 602 can be positioned at the outside or inboard.Matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.

The principle of work of the utility model: the characteristic of flywheel is when the rotation of direction, to be the rotations of band shelves, and is the neutral gear rotation when rotating in the opposite direction, that is to say idle running.

When with the pedal bicycle, pedal axle flywheel 10 forwards rotates the application of force, quickens cruisings through chain 9 transmission axis power wheels 6 and rear axle minor sprocket 3, and at this moment rear axle big gear wheel 4 and transmission gear 602 rearward rotate the not application of force for neutral gear.

When pedal bicycle rearward; Pedal axle flywheel 10 rearward rotates the application of force; Axis sprocket wheel 601 and drive through chain 9 transmission axis power wheels 6 are forwards slowed down with its transmission gear 602 engagement rear axle big gear wheels 4 engage a gears for one; Advance to the Lixing, axis sprocket wheel 601 neutral gears of 3 of rear axle minor sprockets this moment through the chain 9 transmission axis power wheels 6 not application of force rearward rotate, and make to realize in the cycling by the large, medium and small flywheel transmission gear shift labour-saving mode of advancing.

Claims

1. body-building bicycle; Comprise rear axle, back vent, rear axle minor sprocket, crossbeam, chain, pedal axle flywheel; The rear axle minor sprocket is installed on the rear axle of bicycle, pedal axle flywheel is installed on the pedal axle of bicycle, it is characterized in that on the rear axle (1) at bicycle rear axle big gear wheel (4) being installed also; On the crossbeam (8) of bicycle, be fixedly connected with an axis (5), an axis power wheel (6) is installed on the axis (5).

2. body-building bicycle according to claim 1 is characterized in that the axis sprocket wheel (601) of described axis power wheel (6) and transmission gear (602) are structure as a whole.

3. body-building bicycle according to claim 1 and 2; It is characterized in that described rear axle minor sprocket (3), axis sprocket wheel (601), pedal axle flywheel (10) and chain (9) engagement; Described rear axle big gear wheel (4) and transmission gear (602) engagement constitute the rotating variable-speed drive.

4. body-building bicycle according to claim 1 and 2; It is characterized in that on the described rear axle (1); Being positioned at rear axle big gear wheel (4) installed inside has the rear axle stirrup (12) of a setting, on axis (5), is positioned at the axis stirrup (7) that transmission gear (602) installed inside has a setting; The bottom of axis stirrup (7) and rear axle stirrup (12) connects the two ends of horizontal stirrup (13) respectively, and top connects firmly respectively on back vent (2).

5. body-building bicycle according to claim 1 is characterized in that described rear axle minor sprocket (3) is gear-like or chain colyliform, and rear axle big gear wheel (4) is chain colyliform or gear-like, and matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.

6. body-building bicycle according to claim 2; The axis sprocket wheel (601) that it is characterized in that described axis power wheel (6) is positioned at the inboard or the outside; Transmission gear (602) is positioned at the outside or inboard, and matching relationship is sprocket wheel and chain engages, gear and adjacent gear mesh.