A reversible four-wheeled bicycle

Abstract

The invention discloses a four-wheel bicycle capable of reversely running. The four-wheel bicycle capable of reversely running comprises a frame, wheels, a handlebar, a seat and a pawl chain wheel which is fixed on an axle; a reverse running switching device connected with the pawl chain wheel and consisting of a reverse running switching clutch device and a switching driving part is arranged on the axle; the reverse running switching clutch device capable of being integrally combined with the pawl chain wheel and driving the axle to rotate is arranged on one side surface of the pawl chain wheel; and a switching driving part capable of controlling the reverse running switching clutch device to be opened and closed is arranged in the position, on the external side of the reverse running switching clutch device, on the axle. Through adoption of the arranged reverse running switching clutch device, a four-wheel vehicle can both advance and retreat under the actions of a forward rotating force and a reverse rotating force, and a user does not need to do operations such as pushing by hand; and therefore, the four-wheel bicycle capable of reversely running is more convenient for a riderduring riding; the reverse running switching clutch device enables a rear wheel to be able to rotate in the reverse direction under the switching of the switching driving part so that smooth reverse running of the four-wheel bicycle is realized.

Description

Technical field [0001] The invention relates to a human-powered bicycle, in particular to a four-wheeled bicycle that can control the reverse of the vehicle. Background technique [0002] Transportation plays an important role in the development of the national economy. As we all know, ordinary bicycles used for leisure sports and short distance travel are equipped with a tubular frame with a seat and a handlebar. In this kind of bicycle, the front and rear wheels are respectively mounted on the fork frames at the front and rear ends of the frame through shafts and bearings and can rotate. The frame is also equipped with a one-way drive device, which contains two sprockets: a large-diameter drive sprocket and a small-diameter pawl chain. There is a shaft on the driving sprocket, two pedals are installed at both ends of the shaft, and the shaft is installed in a fixed bush on the frame and can rotate. The pawl sprocket is supported by the frame at the center of the rear wheel an...

AI Technical Summary

Problems solved by technology

The driving function of the miniature quadricycle also needs to have a reversing function, so that it can have a flexible turning function when driving, but for a four-wheeled bicycle, it is very inconvenient because of its turning and reversing, and it can only go forward And reversing is more difficult, and it has always been a big problem that plagues the people and scientific research personnel.

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