Rotation type automatic erasure blackboard based on high temperature vanishing pen

Abstract

The invention relates to a rotation type automatic erasure blackboard based on a high temperature vanishing pen. The rotation type automatic erasure blackboard based on the high temperature vanishing pen comprises a control motor, a rotation device and a heating device, wherein the rotation device comprises an aluminum frame, an upper roller located at the top of the aluminum frame, a lower roller located at the bottom of the aluminum frame and an artificial leather arranged between the upper roller and the lower roller, wherein a liner plate is arranged on a position behind the artificial leather, 3mm away from the artificial leather, the upper roller and the lower roller are longitudinally symmetrically arranged, the heating device comprises two V-shaped frames which are horizontally symmetrically arranged, and a heating rod and a press roller which are arranged between the two V-shaped frames, the V-shaped frames are arranged above the lower roller, one end of the artificial leather is connected with the upper roller, and the other end of the artificial leather is connected with the lower roller after respectively bypasses the hearing rod and the press roller. The rotation type automatic erasure blackboard based on the high temperature vanishing pen is compact in structure and high in erasure efficiency, improves teaching environments of teachers and students, and difficultly reflects light, and furthermore the artificial leather used on the rotation type automatic erasure blackboard based on the high temperature vanishing pen has the advantages of resisting abrasion, and being fadeless, good in water repellency, recyclable and the like.

Description

technical field [0001] The invention relates to a rotary automatic erasing blackboard based on a high-temperature disappearing pen. Background technique [0002] The blackboard is an indispensable teaching equipment in the daily teaching process. As a medium for disseminating knowledge, it has been with us from elementary school to university. Chalk is currently the main writing tool in classroom teaching. The chalk dust produced during writing and wiping cannot be effectively removed and purified, causing dust to fly and pollute the classroom environment. When teachers use chalk, they inhale a large amount of chalk dust involuntarily, which can easily cause pneumoconiosis and various acute and chronic respiratory diseases. And the classroom is the main activity place of students, and the time of contacting chalk dust is longer, and the harm that they are subjected to is even bigger than teachers. Especially for primary and middle school students, this is the golden period...

AI Technical Summary

Problems solved by technology

However, according to the students' feedback, multimedia teaching is difficult to see clearly, it is inconvenient to take notes, and sometimes it can't even keep up with the rhythm

Images