An electric sit-up fitness machine

Abstract

The invention discloses an electric sit-up body-building device which comprises a base, a back support plate, a back support plate mounting base, a crank and the like. The back support plate is mounted on the back support plate mounting base in a hinged mode, the crank and a driven wheel are rotationally mounted on the two sides of a crank mounting rack through a mounting shaft, and a driving wheel is mounted on a main shaft of an electric motor; two rolling wheel mounting racks are mounted on the central axes of two rolling wheels in a hinged mode respectively, two rolling wheel grooves are fixedly mounted on the base, one end of each sleeve is fixedly mounted on the corresponding rolling wheel mounting rack, and a telescopic sleeve is mounted at the other end of the sleeve in a sliding mode; one end of a connecting rod is mounted at one end of the crank in a hinged mode, and the other end of the connecting rod is rotationally mounted in the middle of a connecting rod of the rolling wheel mounting racks. The electric sit-up body-building device can relieve the fatigue feeling of people during exercise, improve pleasures of exercise and promote the exercise effect; due to the fact that a damping spring is arranged, impact of the back support plate to the back of people can be reduced, and the comfort can be improved.

Description

technical field [0001] The invention relates to a body-building mechanical device, in particular to an electric sit-up body-building machine, which belongs to the technical field of body-building equipment. Background technique [0002] With the improvement of people's living standards, fitness has become a healthy living habit, and more and more fitness equipments have appeared on the market, but most of the fitness equipments are expensive and not suitable for home fitness. Therefore be badly in need of a kind of fitness equipment that is suitable for family use, simple in structure, easy to operate. Contents of the invention [0003] In view of the above problems, the present invention provides an electric sit-up exercise machine, which is powered by a motor, and is easy to operate and simple in structure. [0004] The technical solution adopted by the present invention is: an electric sit-up fitness equipment, including a base, a back support plate and a back support ...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, fitness has become a healthy living habit. There are more and more fitness equipment on the market, but most of them are expensive and not suitable for home fitness.

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