Electrostatic adsorption blackboard eraser for smart classroom and control system thereof

Abstract

The invention discloses an electrostatic adsorption blackboard eraser for a smart classroom and a control system thereof, and relates to the technical field of electrostatic adsorption blackboard erasers. The electrostatic adsorption blackboard eraser comprises an outer box body, a rectangular annular plate, a wiping plate and a linkage mechanism, wherein the linkage mechanism comprises a fixed pulley, a pull rope and a first spring, conductive cloth is mounted on the inner side surface of a rectangular annular plate and is in electric signal connection with an electrostatic generator, a pressure sensor is installed between the two side walls of the vertical sliding hole, a control panel is mounted on the inner bottom surface of the outer box body, and the control panel is in electric signal connection with the pressure sensor and the electrostatic generator. According to the electrostatic adsorption blackboard eraser, after the pressure sensor detects a pressure signal and transmits the pressure signal to the control panel, the control panel controls a positive and negative rotation motor to rotate reversely to drive a horizontal scraping plate to contract into a supporting annular plate and controls the conductive cloth to be powered on, it is guaranteed that chalk powder falling from the eraser enters the outer box body through an annular channel between the supporting plate and the rectangular annular plate, and the conductive cloth can adsorb chalk powder conveniently.

Description

technical field [0001] The invention belongs to the technical field of electrostatic adsorption blackboard eraser, in particular to an electrostatic adsorption blackboard eraser for smart classrooms and a control system thereof. Background technique [0002] All kinds of smart devices in Hui classroom are very popular, such as smart electronic blackboards, projectors and multimedia consoles, etc. Although the current intelligent teaching equipment can greatly improve the teaching efficiency and quality; however, it is inevitable to use traditional chalk for writing and display. After writing with chalk, it needs to be wiped with a blackboard eraser; however, a large amount of chalk powder will be produced during the wiping process, which will cause teachers and students to absorb a lot of chalk powder dust during the teaching process, which will have a serious impact on the respiratory system of teachers and students. Contents of the invention [0003] The object of the p...

AI Technical Summary

Problems solved by technology

Although the current intelligent teaching equipment can greatly improve the teaching efficiency and quality; however, the traditional chalk writing display is inevitable

After writing with chalk, it needs to be wiped with a blackboard eraser; however, a large amount of chalk powder will be produced during the wiping process, which will cause teachers and students to absorb a lot of chalk powder dust during the teaching process, which will have a serious impact on the respiratory system of teachers and students

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