Chair for preventing myopia

Abstract

The invention discloses a chair for preventing myopia. The chair comprises a five-fulcrum base, wherein a telescoping mechanism is fixed to the middle of the top of the five-fulcrum base, an installing plate is rotationally connected to the top of the telescoping mechanism, the installing plate rotates in the horizontal direction, a first connecting rod is fixed to the top of a first supporting rod, and a second connecting rod is arranged at the end, away from the installing plate, of a hollow connecting rod in an inserted mode. The second connecting rod is composed of two rods, wherein one rod is evenly provided with first open holes, a fixed rod is installed on the other rod, and a leg stopping plate is installed on the fixed rod. A fixed disc is arranged on the lower portion of the telescoping mechanism, and the edge of the fixed disc is provided with a gap. A guide rod is rotationally connected to the bottom of the installing plate, the lower portion of the guide rod is provided with a bayonet, and the bayonet is matched with the gap in the fixed disc. The chair is novel in structure, ingenious and reasonable in design and easy to popularize, and the use feeling of a user is taken into full consideration.

Description

technical field [0001] The invention relates to the technical field of chairs for preventing myopia, in particular to a chair for preventing myopia. Background technique [0002] According to historical records, the name of the chair first appeared in the Tang Dynasty, and the image of the chair can be traced back to the Hu bed introduced to the north during the Han and Wei dynasties. There are images of two people sitting on chairs in the murals of Cave 285 in Dunhuang; in the murals of Cave 257, there are women sitting on square stools and cross-legged benches; in the stone carvings of Lianhua Cave in Longmen, there are women sitting on round stools. These images vividly reproduce the use of chairs and stools in official and noble families during the Southern and Northern Dynasties. Although the seats at that time had the shape of chairs and stools, people still used to call them "hu beds" because there were no titles of chairs and stools at that time. They were often use...

AI Technical Summary

Problems solved by technology

[0003] The seat surface of existing chairs cannot adjust the angle, so that the seat surface and the backrest cannot form a suitable angle, providing users with a comfortable experience, and existing chairs can be rotated, but they cannot be fixed quickly and conveniently. During the lunch break, it is necessary to fix the chair surface that can be rotated arbitrarily, so that the user can rest conveniently. The existing chairs do not have the effect of preventing myopia. Myopia is too common among students nowadays. Therefore, the present invention proposes a method for preventing myopia. Chair, to improve the deficiencies of the existing technology

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