Intelligent blackboard eraser

Abstract

The invention discloses an intelligent blackboard eraser. The intelligent blackboard eraser comprises a first chain-chain wheel group, first guide rail-pulley groups, a first motor, a first motor frame and an eraser, wherein a chain in the first chain-chain wheel group and a guide rail in each first guide rail-pulley group are arranged at an upper edge of a blackboard body; the first motor is arranged in the first motor frame, a pulley in each first guide rail-pulley group is installed on the first motor frame, and a chain wheel in the first chain-chain wheel group is installed on a rotary shaft of the first motor; and the eraser is connected with the first motor frame, and brushes of the eraser are bonded with a blackboard surface of the blackboard body. The intelligent blackboard eraser further comprises a control circuit, wherein the control circuit comprises a microcontroller, and a pressure sensor, keys and a motor drive module which are connected with the microcontroller, wherein the motor drive module is connected with the motor. The blackboard eraser is simple in structure, low in cost, convenient to use, economic and safe, high in reliability, high in erasing effect, capable of reducing dust flying, time-saving and labour-saving, high in erasing efficiency, and capable of reducing dust harm to teachers and students.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to an intelligent blackboard eraser. Background technique [0002] With the development of multimedia, multimedia has entered many schools, but most schools still use blackboards for writing on blackboards. From elementary school to university, they cannot completely get rid of the dependence on traditional blackboards. The blackboard eraser has been improved from the beginning with a rag to a blackboard eraser made of sponge foam. After continuous improvement and replacement, the erasing effect has been improved. However, this traditional blackboard chalk writing is manually erased with a blackboard eraser, which is not only time-consuming It is laborious, the erasing efficiency is low, and a large amount of dust will be generated. Especially when teachers use chalk all the year round, they will involuntarily "suck" in a large amount of dust, which is easy to suffer from respiratory diseases;...

AI Technical Summary

Problems solved by technology

[0002] With the development of multimedia, multimedia has entered many schools, but most schools still use blackboard writing. From elementary school to university, they cannot completely get rid of the dependence on traditional blackboards.

The blackboard eraser has been improved from the initial use of a rag to the blackboard eraser made of sponge foam material. After continuous improvement and replacement, the erasing effect has been improved. However, this traditional blackboard chalk writing is manually erased with a blackboard eraser, which is not only time-consuming It is laborious, the erasing efficiency is low, and a large amount of dust will be generated. Especially when teachers use chalk all the year round, they will involuntarily "suck" in a large amount of dust, which is easy to suffer from respiratory diseases; and students who have been in contact with dust for a long time are susceptible to secondary dust in the classroom. The harm of dust, the harm they suffer should not be underestimated

This kind of traditional blackboard requires the user to manually erase the chalk writing, and the dust flies in the air and accumulates under the blackboard, seriously endangering the health of teachers and students

Images