CN2484241Y

CN2484241Y - Portable bicycle

Info

Publication number: CN2484241Y
Application number: CN 01246028
Authority: CN
Inventors: 庞明方
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-19
Filing date: 2001-06-19
Publication date: 2002-04-03
Anticipated expiration: 2011-06-19

Abstract

The utility model relates to a portable bicycle which has small wheels, can be folded and is easy to be carried. The part of the direction handle close to the direction wheel can be folded, a reinforcement bar is placed on the bicycle frame, the footboard can be folded inward along the foot bar by 180 degrees. The back fork of the other end of the bicycle frame is provided with a pin gear planet type concentric sleeve spindle speeder, a flywheel is fixed on the round tubular axle of the pin gear planet type concentric sleeve spindle speeder, a back axis is suited on the axis of the pin gear planet type concentric sleeve spindle speeder, a seat rod which has a seat can be folded frontward. The pin gear planet type concentric sleeve spindle speeder is used and the traditional big wheel is replaced by the small wheel, the size of the bicycle body is reduced and the speed is maintained. Therefore, the folding is easier and the carrying is more convenient.

Description

Portable bicycle

The utility model relates to a kind of bicycle, particularly a kind ofly extra smallly takes turns, collapsible, the portable bicycle that carries easily.

Existing bicycle has a big defective, is not easy to exactly carry, and the vehicle such as bicycle and bus, train can not be organically combined, more easily trip.Though also the someone has designed Foldable bicycle, eventually very little because of the wheel of bicycle being changed to, it is still not too convenient to carry, because if wheel is changed to very little, the present method that does not also solve the slow difficult problem of riding speed.

The purpose of this utility model is to provide a kind of and extra smallly takes turns, the collapsible and speed of a motor vehicle portable bicycle of ordinary bicycle insolently.

The purpose of this utility model is achieved in that portable bicycle, comprise vehicle frame, steering handle, steering wheel, trailing wheel, treadle, pedal, chain drive, seat post, vehicle seat, an end that it is characterized in that vehicle frame has a T type steering handle, steering handle lower end front fork is connected with steering wheel, the diameter of steering wheel is 10-30cm, the direction barre is collapsible near the steering wheel place, the center fixed of vehicle frame has a sprocket wheel, treadle and pedal, and a reinforced rib arranged, pedal can be along the inside 180 degree turnovers of treadle, the other end back vent of vehicle frame is equipped with the planetary concentric sleeve speed increaser of a pinwheel, this speed increaser comprises shell, cover plate of outer casing, the pipe of band disk, sprocket wheel, pinwheel, the axonometer wheel, axle, bearing, little bearing, the bearing setting in the enclosure, be installed with a pipe in the bearing, but an end of pipe strand has the silk tooth of stationary bicycle flywheel, the other end of pipe is fixed with a disk, symmetry is equipped with two (or three) rotating sprocket wheels on the disk, there are two annulus that are fixed on outer casing inner wall outer end at two (or three) rotating sprocket wheels, the cooresponding aperture of dozens of and sprocket is arranged on the annulus, be placed with little steel column in the aperture, be called pinwheel, respectively be embedded with a little bearing at the two ends of pipe, be installed with one in the two little bearings, one end of axle stretches out pipe, strand has Si Ya and is furnished with cotter way, be used for fixing bicycle quick, the other end of axle is fixed with two sequins, several apertures are arranged around two sequins, fixing several little steel columns in the aperture, be called the axonometer wheel, the cover plate of outer casing of the little bearing of edge in the middle of Feng Youyi on the shell.On the pipe axle of the planetary concentric sleeve speed increaser of pinwheel, fix a flywheel, socket one rear wheel on the axle of the planetary concentric sleeve speed increaser of pinwheel, diameter is 10-30cm, blockchain and sprocket wheel and flywheel engagement, the seat post that has vehicle seat can fold forward, and the lower end of seat post is fixed on the strut bar of vehicle frame back vent by rotatable bearing pin, and collapsible rod one end is fixed on the reinforced rib of vehicle frame, the other end is fixed on the middle fulcrum of seat post, and a rotation fixed cover is arranged in the middle of the collapsible rod.

The beneficial effects of the utility model are: owing to adopted planetary concentric sleeve speed increaser of pinwheel and trundle to substitute traditional big wheel, when reducing vehicle body and kept the speed of a motor vehicle.Thereby make that the vehicle body of bicycle is littler lighter, and folding easier, be easy to carry.Can be with bicycle to take bus and train, be the desirable trip vehicle.

Description of drawings

Fig. 1 is the utility model structural representation

Design sketch when Fig. 2 folds for the utility model

Fig. 3 is the folding back of the utility model design sketch

Fig. 4 is the planetary concentric sleeve speed increaser cross section structure scheme drawing of the utility model pinwheel

Fig. 5 is the planetary concentric sleeve speed increaser master TV structure scheme drawing of the utility model pinwheel

Among the figure: 1-vehicle frame, 2-steering handle, 3-steering wheel, 4-sprocket wheel, 5-treadle, the 6-pedal, 7-blockchain, the planetary concentric sleeve speed increaser of 8-pinwheel, 8a-shell, the 8b-cover plate of outer casing, the pipe of 8c-band disk, 8d-sprocket wheel, 8e-pinwheel, 8f-axonometer wheel, 8g-axle, 8h-bearing, the little bearing of 8i-, the 9-flywheel, 10-rear wheel, 11-seat post, 12-vehicle seat, the 13-reinforced rib, the 14-folding rod, 15-rotates fixed cover, 16-rotation folding barre button.

The utility model is described in further detail below in conjunction with accompanying drawing

Embodiment: according to Fig. 1,4,5, portable bicycle, comprise vehicle frame 1, steering handle 2, steering wheel 3, rear wheel 10, treadle 5, pedal 6, chain drive, seat post 11, vehicle seat 12, one end of vehicle frame has a T type steering handle 2, steering handle lower end front fork is connected with steering wheel 3, the diameter of steering wheel is 10-30cm, the direction barre is collapsible near the steering wheel place, the center fixed of vehicle frame has a sprocket wheel 4, treadle 5 and pedal 6, and a reinforced rib arranged, pedal can be along the inside 180 degree turnovers of treadle, the other end back vent of vehicle frame is equipped with the planetary concentric sleeve speed increaser 8 of a pinwheel, this speed increaser comprises shell 8a, cover plate of outer casing 8b, the pipe 8c of band disk, sprocket wheel 8d, pinwheel 8e, axonometer wheel 8f, axle 8g, bearing 8h, little bearing 8i, the bearing setting in the enclosure, be installed with a pipe in the bearing, but an end of pipe strand has the silk tooth of stationary bicycle flywheel, the other end of pipe is fixed with a disk, symmetry is equipped with two (or three) rotating sprocket wheels on the disk, there are two annulus that are fixed on outer casing inner wall outer end at two (or three) rotating sprocket wheels, the cooresponding aperture of dozens of and sprocket is arranged on the annulus, be placed with little steel column in the aperture, be called pinwheel, respectively be embedded with a little bearing at the two ends of pipe, be installed with one in the two little bearings, one end of axle stretches out pipe, strand has Si Ya and is furnished with cotter way, be used for fixing bicycle quick, the other end of axle is fixed with two sequins, several apertures are arranged around two sequins, fixing several little steel columns in the aperture, be called the axonometer wheel, the cover plate of outer casing of the little bearing of edge in the middle of Feng Youyi on the shell.On the pipe axle of the planetary concentric sleeve speed increaser of pinwheel, fix a flywheel 9, socket one rear wheel 10 on the axle of the planetary concentric sleeve speed increaser of pinwheel, diameter is 10-30cm, blockchain 7 and sprocket wheel 4 and flywheel 9 engagements, the seat post 11 that has vehicle seat 12 can fold forward, the lower end of seat post is fixed on the strut bar of vehicle frame back vent by rotatable bearing pin, and collapsible rod 14 1 ends are fixed on the reinforced rib 13 of vehicle frame, and the other end is fixed on the middle fulcrum of seat post.When riding bicycle, sprocket wheel 4 makes flywheel 9 rotate by the transmission of blockchain 7, the rotation of flywheel 9 makes the planetary concentric sleeve speed increaser 8 of pinwheel also rotate again, through the speedup of several times of speed increasers, drive rear wheel 10 and be higher than the rotating speed of flywheel several times and rotate, it is little and the speed of a motor vehicle is not slow to reach wheel.With reference to Fig. 2,3, in the time will packing up portable bicycle, rotatable rotation fixed cover 15, seat post is folding forward.Rotate rotation folding barre button 16, steering handle 2 can be folded back, stretching pedal 6 can can be finished the folding of this car along the inside 180 degree turnovers of treadle with pedal.Otherwise, open as the same.

Claims

1, portable bicycle, comprise vehicle frame, steering handle, steering wheel, trailing wheel, treadle, pedal, chain drive, seat post, vehicle seat, an end that it is characterized in that vehicle frame has a steering handle, steering handle lower end front fork is connected with steering wheel, the direction barre is collapsible near the steering wheel place, vehicle frame has on a reinforced rib and its tween drive shaft and is fixed with sprocket wheel, treadle, pedal is fixed on the treadle, pedal can be along the inside 180 degree turnovers of treadle, the other end back vent of vehicle frame is equipped with the planetary concentric sleeve speed increaser of a pinwheel, on the pipe axle of the planetary concentric sleeve speed increaser of pinwheel, fix a flywheel, socket one rear wheel on the axle of the planetary concentric sleeve speed increaser of pinwheel, blockchain and sprocket wheel and flywheel engagement, the seat post that has vehicle seat can fold forward.

2, portable bicycle according to claim 1, it is characterized in that: the planetary concentric sleeve speed increaser of pinwheel, comprise shell, cover plate of outer casing, the pipe of band disk, sprocket wheel, pinwheel, the axonometer wheel, axle, bearing, little bearing, the bearing setting in the enclosure, be installed with a pipe in the bearing, but an end of pipe strand has the silk tooth of stationary bicycle flywheel, the other end of pipe is fixed with a disk, symmetry is equipped with two (or three) rotating sprocket wheels on the disk, there are two annulus that are fixed on outer casing inner wall outer end at two (or three) rotating sprocket wheels, the cooresponding aperture of dozens of and sprocket is arranged on the annulus, be placed with little steel column in the aperture, be called pinwheel, respectively be embedded with a little bearing at the two ends of pipe, be installed with one in the two little bearings, one end of axle stretches out pipe, strand has Si Ya and is furnished with cotter way, be used for fixing bicycle quick, the other end of axle is fixed with two sequins, several apertures are arranged around two sequins, fixing several little steel columns in the aperture, be called the axonometer wheel, the cover plate of outer casing of the little bearing of edge in the middle of Feng Youyi on the shell.

3, portable bicycle according to claim 1 and 2, it is characterized in that: the lower end of seat post is fixed on the strut bar of vehicle frame back vent by rotatable bearing pin, collapsible rod one end is fixed on the reinforced rib of vehicle frame, the other end is fixed on the middle fulcrum of seat post, and a rotation fixed cover is arranged in the middle of the collapsible rod.

4, portable bicycle according to claim 1 and 2 is characterized in that: the diameter of steering wheel and rear wheel is 10-30cm.

5, portable bicycle according to claim 1 and 2 is characterized in that: steering handle is a T type steering handle.

6, portable bicycle according to claim 1 and 2 is characterized in that: the direction barre is a hinge arrangement near steering wheel place folding structure, is fixed by rotation folding barre button.