Easily pulled and folded portable multipurpose bicycle ridden by multiple persons

Abstract

The invention relates to an easily pulled and folded portable multipurpose bicycle ridden by multiple persons. The bicycle comprises a bicycle frame, handlebars, a saddle, wheels, foot pedals and a drive mechanism, wherein the bicycle frame comprises a front bicycle frame and a rear bicycle frame, and the front bicycle frame is connected with at least one rear bicycle frame through a connector; the bicycle frame consists of a plurality of beam columns and freely movable joints, is easily, conveniently and rapidly folded by a pushing and pulling way, and can be shortened to be in a state that the front wheel, the middle wheel and the rear wheel are overlapped, thereby the volume of the bicycle is greatly reduced, the handlebars can be also folded so as to reduce the occupied space and facilitate casing, carrying, transporting or storing; the bicycle frame and the freely movable joints are reasonable in structural design and have the favorable intensity and the rigidity, the whole bicycle connection is reliable after a rapidly disassembled locknut is locked, and the bicycle is comfortable and safe when people ride on and has favorable flexibility, equilibrium and stability; after the bicycle is folded, the rotation of the wheels is not influenced, the user only needs supporting the handlebars by hands without lifting by hands, and the bicycle is pushed in such a way that the wheels touch the ground, thereby being convenient to carry; in addition, the bicycle can be ridden by two persons or multiple persons, thereby being suitable for going off daily, touring, entertainment and body-building.

Description

technical field [0001] The invention belongs to the field of bicycles, and relates to an easy-to-fold portable multi-purpose bicycle for many people to ride. Background technique [0002] Riding a bicycle for two or more people is a very good entertainment tool, which is very popular in Europe and the United States. Traditional tandem or multi-person bicycles usually cannot be folded, because they are too bulky and take up a lot of space when stored. As a recreational vehicle, people prefer to take it to parks and outskirts to ride and play, but general household minibuses and cars cannot be loaded and transported, and they are not convenient to carry when going out, which limits their use. [0003] Traditional collapsible bicycles usually fold the handlebars and wheels in half, or remove the wheels to reduce the folding size, and the frame generally cannot be folded, so the folded bicycle is still large in size and inconvenient to store and carry. Folding bicycles are cum...

AI Technical Summary

Problems solved by technology

Traditional tandem or multi-person bicycles usually cannot be folded, because they are too bulky and take up a lot of space when stored

As an entertainment car, people prefer to take it to the park and the outskirts for riding, but ordinary household minibuses and cars cannot be loaded and transported, and it is not convenient to carry it when going out, which limits its use.

[0003] Traditional collapsible bicycles usually fold the handlebars and wheels in half, or remove the wheels to reduce the folding size, and the frame generally cannot be folded, so the folded bicycle is still large in size and inconvenient to store and carry. Folding bicycles are cumbersome to fold, and cannot be rolled out after folding. Users have to carry them by hand, which takes a lot of time and effort, so it is not easy to popularize.

[0004] In existing tandem bicycles, even if the frame can be folded, due to the unreasonable design of the frame and movable joint structure, the strength and rigidity are reduced, which affects the overall stability, balance, and flexibility when riding.

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