Off-road four-wheel bicycle with automatic wheel conversion up and down to adapt to uneven ground

Abstract

The invention relates to the technical field of four-wheel bicycles, in particular to a cross-country four-wheel bicycle with wheels capable of being automatically converted to vertically adapt to uneven ground. The cross-country four-wheel bicycle is characterized by comprising a frame, a converting device, the wheels, a rocker frame, a damping device, a sliding shaft, a pedal device, a direction control device and a saddle; the converting device comprises transmission shafts, a converter shell, a gear shaft, four bevel gears and an intermediate converter; one ends of the transmission shafts are fixedly arranged on the sliding shaft, and the other ends of the transmission shafts are connected with the bevel gears; the four bevel gears are arranged in an end-to-end manner, and arranged in the converter shell through the gear shaft, the transmission shafts and the intermediate converter; and the intermediate converter is a cube and is rotationally connected with the gear shaft. The cross-country four-wheel bicycle is reasonable in structure, the pressure exerted on the part between the wheels is even, damage is not likely to happen, the wheels are not prone to suspending, and the climbing capability is high.

Description

Technical field: [0001] The invention relates to the technical field of four-wheel bicycles, in particular to off-road four-wheel bicycles whose wheels are automatically switched up and down to adapt to uneven ground. Background technique: [0002] Current existing four-wheeled bicycles are divided into single-person bicycles and multi-person bicycles. No matter which type, existing four-wheeled bicycles all have a shortcoming, that is, when the wheels of the bicycle cross over obstacles a little higher, it is difficult to ride. People are a little powerless, and it will be very bumpy. Therefore, because the weight of the bicycle cannot be too heavy, the frame structure and the requirements just now are relatively thin. When driving on uneven roads, due to the rigid structure and lack of toughness, the vehicle is easily damaged. . And the existing four-wheeled bicycle is easily damaged, and the main structure is unreasonable. It is mainly reflected in that if a wheel climbs...

AI Technical Summary

Problems solved by technology

[0002] Current existing four-wheeled bicycles are divided into single-person bicycles and multi-person bicycles. No matter which type, existing four-wheeled bicycles all have a shortcoming, that is, when the wheels of the bicycle cross over obstacles a little higher, it is difficult to ride. People are a little powerless, and it will be very bumpy. Therefore, because the weight of the bicycle cannot be too heavy, the frame structure and the requirements just now are relatively thin. When driving on uneven roads, due to the rigid structure and lack of toughness, the vehicle is easily damaged.

And the existing four-wheeled bicycle is easily damaged, and the main structure is unreasonable. It is mainly reflected in that if a wheel climbs to a high place, the weight major part will be pressed on two wheels on the diagonal line positioned at a high place, or even other wheels It will be suspended in the air, so it is very laborious, and it is easy to twist the car beam

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