English teaching blackboard

Abstract

The invention relates to an English teaching blackboard. The English teaching blackboard comprises a blackboard body, wherein a frame surrounding around the edge of the blackboard body is arranged at the periphery of the blackboard body; a plurality of dust collection holes are formed in one side, close to the blackboard body, of the frame; a dust collector is arranged at the lower end of the frame; a dust collection opening of the dust collector is communicated with the interior of the frame; a motor and a gear box are arranged on each of two sides of the frame; output shafts of the two motors are connected with the gear boxes close to the motors; racks are arranged on frame bodies of the frame on two sides close to the two gear boxes; output shafts of the two gear boxes are respectively meshed and linked with the racks; a transversely-arranged strip-shaped blackboard brush is arranged on the blackboard body; two ends of the blackboard brush are fixedly connected with two racks respectively; the two racks are used for driving the blackboard brush to vertically move; the two motors are connected with a controller through a circuit; a wound point-reading panel is arranged on the frame and is connected with a host through the circuit. The English teaching blackboard can be automatically wiped and is capable of automatically collecting dust and pointing and reading English.

Description

technical field [0001] The invention relates to the technical field of teaching tools, in particular to an English teaching blackboard. Background technique [0002] At present, there are various blackboards commonly used in various teachings, but most of the blackboards written with chalk have the problem of dust pollution, which seriously affects the health of teachers and students. Things that come into contact with every day, especially when wiping the blackboard, a large piece of white dust is flying all over the sky, and everyone inevitably inhales some chalk dust, and the students in the front row, teachers, and students on duty inhale more. The lungs, upper respiratory tract, eyes, skin, ears and other organs of primary and middle school students and teachers cause harm, induce other diseases and pollute the environment. In order to solve the problem of dust pollution and reduce the labor intensity of teachers frequently wiping the blackboard during the teaching pro...

AI Technical Summary

Problems solved by technology

[0002] At present, there are various blackboards commonly used in various teachings, but most of the blackboards written with chalk have the problem of dust pollution, which seriously affects the health of teachers and students. Things that come into contact with every day, especially when wiping the blackboard, a large piece of white dust is flying all over the sky, and everyone inevitably inhales some chalk dust, and the students in the front row, teachers, and students on duty inhale more. The lungs, upper respiratory tract, eyes, skin, ears and other organs of primary and middle school students and teachers cause harm, induce other diseases, and pollute the environment

In order to solve the problem of dust pollution and reduce the labor intensity of teachers frequently wiping the blackboard during the teaching process, people have designed many manual or electric blackboard erasers that can automatically vacuum the dust. Vacuum cleaners are used to achieve the purpose of dust collection. Due to the structure of these blackboard erasers, not only the dust collection effect is not ideal, but also it is time-consuming and laborious to wipe.

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