Pen ink detection pen

Abstract

The invention discloses a pen ink detection pen. The pen ink detection pen comprises a penholder, a refill and a pen cap. A transparent refill is adopted as the refill and is sleeved with the penholder. The pen cap is in lap joint with the penholder. A pen ink sensing device is arranged in the penholder and comprises a power supply module, a processing module, a button switch, LED lights and trackrecognition microsensors. The LED lights comprise the red light, the yellow light and the green light. Thus, when the pen ink in the refill is sufficient, bulbs in the three colors are lit when the button switch is pressed; when the position of the pen ink is lower than the position of the first rack recognition sensor, the green light is not lit, and the yellow light and the red light are lit; and when the position of the pen ink is lower than the position of the second rack recognition sensor, the green light and the yellow light are not lit, only the red light is lit, finally when the redlight is going to go off, an alarming unit gives an alarm, which indicates that the pen ink in the refill is hardly left, a user needs to replace the refill immediately, and thus the user can know therefill using condition at all times.

Description

technical field [0001] The invention relates to a school article, in particular to a pen and ink detection pen. Background technique [0002] Many people use water-based pens in daily life. These water-based pens are basically composed of refills in the pen holder. In order to look good, many pen holders are made of opaque materials, so that it is impossible to know the inside of the refill when writing. The use of pen and ink, and then in some important occasions that need to use a pen, when writing, the refill suddenly runs out of ink, which will make the user very embarrassed; and usually the refills we use are transparent, through the pen The refill can directly observe the use of pen and ink inside, but since the refill is socketed in the pen holder, it is troublesome to take it out. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a pen and ink detection pen, which is convenient for de...

AI Technical Summary

Problems solved by technology

[0002] Many people use water-based pens in daily life. These water-based pens are basically composed of refills in the pen holder. In order to look good, many pen holders are made of opaque materials, so that it is impossible to know the inside of the refill when writing. The use of pen and ink, and then in some important occasions that need to use a pen, when writing, the refill suddenly runs out of ink, which will make the user very embarrassed; and usually the refills we use are transparent, through the pen The refill can directly observe the use of pen and ink inside, but because the refill is sleeved in the pen holder, it is troublesome to take it out

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