Bicycle driven in forward and reverse directions

Abstract

The invention discloses a bicycle driven in forward and reverse directions. A large sprocket wheel on a bicycle body is connected with a rear wheel flywheel through a first chain, a crank is mounted on the large sprocket wheel, a foot pedal is mounted on the crank, and the rear wheel flywheel is mounted on a flower drum of a rear wheel; a medium wheel and a first small flywheel are all meshed withthe first chain, the medium wheel is mounted on a medium wheel mounting shaft through a medium wheel mounting bearing, the two ends of the medium wheel mounting shaft are fixed to a mounting frame, and the mounting frame is fixed on a bicycle frame; the first small flywheel is installed on a small flywheel mounting sleeve, the small flywheel mounting sleeve is also provided with a second small flywheel, an inner wall of the small flywheel mounting sleeve is fixed to an outer ring of a mounting sleeve bearing, an inner ring of the mounting sleeve bearing is fixed at a small flywheel fixing shaft, and the two ends of the small flywheel fixing shaft are fixed to a mounting bracket; the second small flywheel is connected with a large flywheel through the second chain, and the large flywheel and the rear wheel flywheel are coaxially mounted on the flower drum of the rear wheel; the second small flywheel and a backward walking unlocking mechanism are connected. The bicycle has the advantages of being beneficial to physical health.

Description

technical field [0001] The invention relates to the technical field of vehicles, and more specifically, relates to a forward and reverse driving bicycle. Background technique [0002] With the development of the times, the concept of health has become more and more popular; for a long time, people have used bicycles as the main means of transportation for fitness and short-distance travel. With the development of the times, although new means of transportation emerge in an endless stream, people still have a soft spot for bicycles due to factors such as health and environmental protection. After continuous improvement and perfection, bicycles have developed greatly in terms of variety, structure, color and function; however, the biggest shortcoming of ordinary bicycles at present is that the design of riding action is limited, only a single action such as forward riding, Riding for a long time seriously affects the health of the rider. The rider holds the handlebars with b...

AI Technical Summary

Problems solved by technology

After continuous improvement and perfection, bicycles have developed greatly in terms of variety, structure, color and function; however, the biggest shortcoming of ordinary bicycles at present is that the design of riding action is limited, only a single action such as forward riding, Cycling for a long time seriously affects the health of the rider

The rider holds the handlebars with both hands, the upper part of the body leans forward, and the lower limbs step on the pedals forward to make it move forward. The center of gravity is all pressed on the bicycle seat, so that the buttocks and perineum of the body bear the most force. For long-term riders, wrists, cervical spine, lumbar spine and lower body will experience various symptoms of discomfort, which is not conducive to health

Images