Sight protection chair with sitting posture correction function

Abstract

The invention relates to a sight protection chair with a sitting posture correction function. The sight protection chair includes a chair frame, a pressing chair seat, shoulder pressing claws and a linkage unit, wherein the pressing chair seat does pressing action on a chair leg supporting frame when a person sits on the pressing chair seat and downwardly applies pressing acting force to the pressing chair seat; at the moment, the pressing acting force is synchronously transferred to the shoulder pressing claws by means of the linkage unit, so that the shoulder pressing claws synchronously do pressing action on a back rest; thus, the shoulders of a human body are pressed and clamped by the shoulder pressing claws; the pressing acting force and pulling force towards the back rest are simultaneously applied to the shoulders of the human body by means of the shoulder pressing claws; when the person moves away from the pressing chair seat and the pressing acting force is eliminated, the pressing chair seat is lifted on the chair leg supporting frame; at the moment, the shoulder pressing claws are driven by means of the linkage unit to be synchronously lifted on the back rest; and thus, the pressing chair seat and the shoulder pressing claws are reset, and the shoulder pressing claws are moved away from the shoulders of the human body.

Description

technical field [0001] The invention relates to a seat, in particular to a seat for protecting eyes and sight for correcting the reading and writing posture of a human body. Background technique [0002] Humans can recognize more than 7.5 million colors through their eyes, so eyes play a very important role in people's perception of the outside world. This ability to see objects through the eyes is called vision. Vision is mainly to feel the comprehensive perception of light and shade, color, movement, distance, size and so on. The functions of the crystal, pupil and retina in the human eye are the same as those of the camera lens, aperture and film. The lens is the crystal, the aperture is the pupil, and the film is the retina. The pupil regulates the amount of light entering the eye, the light superimposes on the lens to form a focus, adjusts the thickness of the lens through the trichoid body, and then refracts through the lens to the retina to form an image. Therefor...

AI Technical Summary

Problems solved by technology

[0005] However, due to the relatively poor self-discipline of children or teenagers, when children or teenagers sit on a chair to read and write, they often cannot consciously maintain the correct reading and writing posture, which will inevitably damage the eyes in the long run, and then affect the vision of the eyes. And there is not yet a chair with a more ideal effect to correct the sitting posture function to appear, and this is the main shortcoming of the traditional technology

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