CN205837076U - A kind of portable folding bicycle - Google Patents

Abstract

This utility model relates to a kind of portable folding bicycle, belong to the application of bicycle, including body part, running part and undercarriage, described body part is made up of vehicle frame, handlebar, handlebar component, front fork, front forked assembly and vehicle seat, described running part is made up of sprocket wheel, chain and pedal, and described undercarriage is made up of front vehicle wheel and rear wheel.This utility model employing body structure, simple in construction, folding convenient, lightweight, deposit conveniently.

Description

A portable folding bicycle

technical field

The utility model belongs to the application field of bicycles and relates to a portable folding bicycle.

Background technique

It has been 200 years since the bicycle was invented and used. In the process of continuous experimentation and research and development in the past 200 years, human beings have transformed toy-style Trojans into various new leisure sports bicycles today. The purpose of bicycle development has also changed from The earliest entertainment use has become transportation and leisure sports. At the beginning of the 20th century, bicycles developed slowly in China, but after the reform and opening up, all kinds of bicycles were greatly popularized and developed in China, and bicycles also developed from a single function to a multi-functional, and also from a single structure to the foldable.

Portable bicycles at home and abroad have relatively simple functions and complicated folding, which basically realizes folding, but generally have a large weight and volume, are not easy to carry, and the speed design is not in place. It is of great significance to design a bicycle that is small in size, light in weight, easy to carry, easy to store, easy to use, and easy to fold.

Contents of the invention

1. The technical problem to be solved by this utility model is: to overcome the shortcomings of traditional folding bicycles, and propose a bicycle that is small in size, light in weight, easy to carry, easy to store, easy to use, and easy to fold.

2. The technical solution adopted by the utility model to solve the technical problem is: A portable folding bicycle includes a body part, a transmission part and an action part. The vehicle body part is composed of a frame, a handlebar, a handlebar assembly, a front fork, a front fork assembly and a seat: the vehicle frame is installed on the box body and supported by an auxiliary plate, and the handlebar assembly is passed through a pin The connection is installed above the vehicle frame, the handlebar is installed above the handlebar assembly through the spring pin; the front fork assembly is installed directly below the vehicle frame, and the front fork is installed directly below the front fork assembly through the spring pin; The vehicle seat is installed in the vehicle seat installation hole through the vehicle seat fitting. The transmission part includes a sprocket, a chain and a pedal: the sprocket is installed in the sprocket mounting hole through a shaft, and the pedal is fixed on the sprocket through a key. Described action part is made up of front wheel and rear wheel: front wheel is installed in the wheel installation hole of front fork by axle, and rear wheel is installed in the rear wheel installation hole in the rear wheel guide groove by axle.

4. Significant effects of the utility model: the utility model adopts a box structure, which is simple in structure, easy to operate, easy to fold, light in weight, and convenient to store.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a portable folding bicycle of the present invention before folding;

Fig. 2 is a schematic diagram of the folded structure of a portable folding bicycle of the present invention;

Fig. 3 is a structural schematic diagram of a portable folding bicycle box of the present invention.

detailed description

The following is a further description of the utility model in conjunction with the accompanying drawings and in conjunction with a portable folding bicycle to achieve the required functional requirements: a portable folding bicycle includes a body part, a transmission part and an action part, and the body part is composed of a vehicle frame (3), handlebar (1), handlebar assembly (2), front fork (5), front fork assembly (4) and seat (8): the frame (3) is installed in the box (7), supported by the auxiliary plate (73), the handlebar assembly (2) is installed above the frame (3) through a pin connection, and the handlebar (1) is installed on the handlebar assembly (2) through a spring pin above; the front fork assembly (4) is installed directly below the frame (3), and the front fork (5) is installed directly below the front fork assembly (4) through a spring pin; the vehicle seat (8) Install it in the seat mounting hole (74) through the seat assembly (9). The transmission part includes a sprocket (10), a chain (12) and a pedal (11): the sprocket (10) is installed in the sprocket installation hole (75) through a shaft, and the pedal (11) is fixed on the chain through a key. on the wheel (10). The action part consists of a front wheel (6) and a rear wheel (13): the front wheel (6) is installed in the wheel mounting hole of the front fork (5) through the shaft, and the rear wheel (13) is installed in the rear wheel guide through the shaft. Rear wheel mounting holes in groove (72) (77) inside.

After a portable folding bicycle is folded, the frame (3), the handlebar (1), the handlebar assembly (2), the front fork (5), the front fork assembly (4), the front wheel (6), the chain Wheel (10), pedal (11), chain (12) and rear wheel (13) are all in the casing (7). The vehicle frame (3) is positioned between the two auxiliary plates (73), the handlebar (1) and the handlebar assembly (2) are on the auxiliary plate (73), and one end of the handlebar (1) goes deep into the handlebar assembly inside the empty pipe of part (2); the top of the front fork (5) goes deep into the empty pipe of the front fork assembly (4), the rear wheel (13) is located above the rear wheel guide groove (72), and is fixed on the rear wheel hole (77), at this time the chain (12) is in a relaxed state, the lower surface of the seat (8) is attached to the upper surface of the box, and the seat assembly (9) goes deep into the box through the seat mounting hole (74). in vivo. Sprocket (10) is installed in the sprocket mounting hole (75) on the rib (71).

When using a portable folding bicycle, keep the sprocket (10) stationary, and the rear wheel (13) moves through the rear wheel guide groove (72) to the rear wheel mounting hole below the rear wheel guide groove (72) (76), now the chain (12) is in tension. Pull the frame (3) out of the box, erect the handlebar assembly (2) and handlebar (1), and fix them on the top of the frame (3); use the front fork assembly (4) to make the front fork ( 5) Lower it so that the axis of the front wheel (6) is on the same level as the axis of the rear wheel (13). Move the seat (8) up through the seat assembly (9) to reach a suitable height. The bike is then ready to ride.

Claims (1)

1. A portable folding bicycle includes a body part, a transmission part and an action part, and is characterized in that: the body part is made up of a vehicle frame, a handlebar, a handlebar assembly, a front fork, a front fork assembly and a vehicle seat , the frame is installed on the box body and supported by the auxiliary plate, the handlebar assembly is installed above the frame through a pin connection, the handlebar is installed above the handlebar assembly through a spring pin, and the front fork assembly is installed Right below the vehicle frame, the front fork is installed directly below the front fork assembly through the spring pin; the vehicle seat is installed in the vehicle seat installation hole through the vehicle seat assembly; the transmission part includes a sprocket, a chain and a foot pedal, the sprocket is installed in the sprocket mounting hole through the shaft, and the pedal is fixed on the sprocket through the key; the action part is composed of a front wheel and a rear wheel, and the front wheel is mounted in the wheel mounting hole of the front fork through the shaft. The rear wheel is installed in the rear wheel mounting hole in the rear wheel guide groove through the axle.