student multifunctional anti-myopia device

Abstract

A student multifunctional shortsightedness preventing device comprises a writing board and a chest protecting board. A supporting board and a separating distance adjusting box are arranged between the writing board and the chest protecting board, the supporting board is formed by an arc-shaped supporting board and a baffle, a cover board is arranged on the rear portion of the separating distance adjusting box, a tongue board capable of being lifted up is arranged on the cover board, the tongue board is formed by opening grooves, a touch press sheet is arranged in the separating distance adjusting box, the lower end of the touch press sheet is fixedly connected to the tongue board, the middle portion of the touch press sheet is hinged to the cover board, the upper end of the arc-shaped supporting board is connected with the rear end of the writing board in a pivot mode, the lower end of the arc-shaped supporting board is connected with the bottom of the box body of the separating distance adjusting box in a pivot mode, the protruding edges of the two sides of the box body of the separating distance adjusting box are embedded in sliding grooves of the chest protecting board, and protruding blocks on the tongue board are embedded in grooves of the chest protecting board to achieve location. The student multifunctional shortsightedness preventing device is small in size, light in weight, convenient to carry, suitable for various learning occasions, capable of providing appropriate reading and writing angles and distances, and beneficial to enabling student to keep correct sitting postures, protecting eyesight and preventing shortsightedness and humpback.

Description

technical field [0001] The invention relates to equipment for correcting sitting postures, in particular to a multifunctional anti-myopia device for students. Background technique [0002] In recent years, the incidence of myopia, strabismus, and hunchback among primary and secondary school students has been increasing year by year, and the age is getting younger. The main reason is that the body of students aged 4-15 is in an indeterminate stage and develops completely with the shape. Whether the posture when reading and writing is correct will directly affect its physical development. Since the desktops of the desks of middle and primary school students are all horizontal, there is no inclination angle, and the books are placed flat on the desktop. distance, resulting in vision loss, as time goes by, the formation of myopia and strabismus, and even cause hunchback and spine deformation, so there is an urgent need to develop a multifunctional anti-myopia device that can no...

AI Technical Summary

Problems solved by technology

Since the desktops of the desks of middle and primary school students are all horizontal, there is no inclination angle, and the books are placed flat on the desktop. distance, resulting in vision loss, as time goes by, the formation of myopia and strabismus, and even cause hunchback and spine deformation, so there is an urgent need to develop a multifunctional anti-myopia device that can support books and correct sitting posture

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