Study table and chair which protect eyesight

Abstract

The invention discloses a study table and chair which protect eyesight. The study table and chair structurally comprise a chair seat, chair leg lifting columns, a base, table leg lifting columns, cranking bars, a placing platform, a sensor, a fixed table plate and a writing plate, the fixed table plate is of an L-shaped wooden plate structure, the included angles are all arc angles, the same baffles are arranged at the left side and the right side of the fixed table plate, the inner side of the fixed table plate is in gap embedding connection the writing plate in a combined mode, the writing plate is a square plate body, the surface of the fixed table plate and the lower end of the placing platform are fixed in an assembly part locking mode, the cranking bars are arranged at the two sides of the fixed table plate, the lower ends of the table leg lifting columns are perpendicular to the surface of the base, and the table leg lifting columns are of L-shaped pipe body structures. The study table and chair which protects the eyesight is provided with the sensor, through the adoption of an infrared induction principle, when the head of a user is away from the probing range, a transmitting signal is connected with a loudspeaker to send an alarm, and a correct writing habit can effectively protect the eyesight and prevent myopia.

Description

technical field [0001] The invention relates to a study desk and chair for protecting eyesight, belonging to the field of study aids. Background technique [0002] The study desk and chair is a simplified product of the ergonomic desk. It has two basic functions of desktop tilting and lifting. The table body is combined with the bookshelf, and the space is utilized. Books, stationery, school bags, etc. can be placed in places, which can cultivate children's self-discipline, Cleanliness and other good habits. [0003] The prior art discloses a children's study table and chair with application number: 201220381588.6, the table leg (5) is provided with a first-level telescopic column (11), and the bottom surface of the desktop (3) is symmetrically installed on both sides of the large fixed hinge support (9) and the small fixed hinge support (10), the large fixed hinge support (9) is connected with the first level telescopic column (11) through the secondary telescopic column (...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a study table and chair for protecting eyesight, so as to solve the problem that the study table and chair cannot monitor the user's writing posture, and bad writing habits can easily damage the eyesight

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