Household type myopia prevention learning desk and chair combination

Abstract

The invention discloses a household type myopia prevention learning desk and chair combination which comprises a learning desk and a learning chair, wherein the learning chair comprises a chair base; the chair base is mounted on two parallel guide rods in a sliding manner; linear bearings which are in sliding linear fit with the guide rods are fixedly arranged on the chair base; the front ends of the guide rods are fixedly connected to a learning desk stander; the middle parts and the rear ends of the guide rods are fixedly provided with a front support and a rear support which are in contact with the ground respectively; a front chain wheel is mounted on the front support, and a speed reduction motor is mounted on the rear support; the speed reduction motor is connected with a rear chain wheel in a driving manner. The household type myopia prevention learning desk and chair combination is suitable for being used by a student at home; a desktop and a chair do not generate contact friction with a blanket or a floor when moving relative to each other; the overall height of the desktop is convenient to adjust; the front-and-back position and the height of the chair can be freely adjusted, and the chair cannot rotate freely; the use comfortableness of the student is improved, and myopia is prevented.

Description

technical field [0001] The invention relates to the field of student desks and chairs, in particular to a home-type anti-myopia study desk and chair combination. Background technique [0002] According to a recent survey by the National Bureau of Statistics, the current situation of poor eyesight among Chinese students is worrying. The proportion of myopia in primary schools is 34% - 61%, that in junior high schools is 68%, and that in key high schools is about 90%. Myopia and hunchback are common problems among primary and middle school students, which seriously endanger the physical development and health of adolescents and children. Recent scientific research results show that the main cause of myopia and hunchback is caused by poor sitting posture. Sitting upright is the key to preventing myopia and hunchback. However, how to make children consciously maintain a good sitting posture in the long-term learning process is a worldwide problem, and no effective solution ha...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of ordinary chairs is that many parents think that children's bad sitting posture is caused by fatigue, but few people know that the bad sitting posture is actually caused by the unreasonable structure of the chair. The structure of ordinary chairs is basically "h" type (Facing the right-angle type), the weight of the human body is mainly borne by the buttocks and thighs when sitting. When studying or working, the angle between the upper body and the thighs is generally less than 90 degrees, and the upper body is in a "c" shape. This sitting posture will naturally Make people's spine bend, increase the burden on legs, waist, and temples, and cause back pain after sitting for a long time

It can be said that the fatal flaw in the structure of ordinary chairs is the real culprit of myopia and hunchback in children

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