阅读说明：本技术 一种防近视笔 (Myopia-preventing pen ) 是由 刘江锋 于 2018-07-25 设计创作，主要内容包括：一种防近视笔属于学习用品领域,以解决近视问题。本技术方案包括笔杆,笔杆内装上一串联电路,包括距离感应器、工作感应器、信号灯和电源。通过采用上述的结构,使用时,当持笔者的头部与笔尖距离小于某一数值时,该电路形成通路,信号灯工作(发光),则持笔者应该调整头部距离至大于某一数值时,信号灯又会熄灭(此时距离感应器不工作,电路断开)。该设计结构简单,使用方便,效果明显。(A myopia prevention pen belongs to the field of school supplies and aims to solve the myopia problem. The technical scheme includes that the pen holder is internally provided with a series circuit which comprises a distance inductor, a work inductor, a signal lamp and a power supply. By adopting the structure, when the distance between the head of a pen holder and the pen point is smaller than a certain value, the circuit forms a path, the signal lamp works (emits light), and when the distance between the head of the pen holder and the pen point is adjusted to be larger than the certain value, the signal lamp is extinguished (at this moment, the distance sensor does not work, and the circuit is disconnected). The design structure is simple, the use is convenient, and the effect is obvious.)

1. The utility model provides a myopia prevention pen, includes pen-holder (1), its characterized in that: a series circuit is arranged in the pen holder (1) and comprises a distance inductor (2), a working inductor (5), a signal lamp (3) and a power supply (4).

Technical Field

The invention belongs to the field of school supplies, and particularly relates to a myopia prevention pen.

Background

In the modern society, myopia is caused by a plurality of factors, wherein the important reason is that the distance between the eyes and the desktop is too close during writing, and the vision of the eyes is reduced as time passes, so that the myopia is formed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a myopia prevention pen to solve the myopia problem.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a myopia-preventing pen comprises a pen holder and is characterized in that a series circuit is arranged in the pen holder and comprises a distance sensor, a work sensor, a signal lamp and a power supply.

By adopting the structure, when the pen is used, when the distance between the head of a pen holder and the pen point is smaller than a certain value, the circuit forms a path, the signal lamp works (emits light), and when the distance between the head of the pen holder and the pen point is adjusted to be larger than the certain value, the signal lamp is turned off (at the moment, the distance sensor does not work, and the circuit is disconnected). The design structure is simple, the use is convenient, and the effect is obvious.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: the pen comprises a pen body 1, a distance sensor 2, a signal lamp 3, a power supply 4 and a working sensor 5.

Detailed Description

Referring to fig. 1, the myopia prevention pen comprises a pen holder 1, wherein a series circuit is arranged in the pen holder 1 and comprises a distance sensor 2, a work sensor 5, a signal lamp 3 and a power supply 4. By adopting the structure, when the distance between the head of a pen holder and the pen point is smaller than a certain value, the circuit forms a path, the signal lamp 3 works (emits light), and when the distance between the head of the pen holder and the pen point is adjusted to be larger than the certain value, the signal lamp 3 is extinguished (at the moment, the distance sensor 2 does not work, and the circuit is disconnected).