Environment-friendly eraser suitable for being used by college English teachers

Abstract

The invention discloses an environment-friendly blackboard eraser suitable for college English teachers. It includes a housing, a handle is installed on the top of the housing, two legs of the handle extend to the inside of the housing, and a slide plate is installed at the bottom of the two legs of the handle. A buffer spring is provided on the handle leg between the slide plate and the inner wall of the housing, a main brush is provided on the side of the slide plate away from the handle, a sealing cover is provided on the end of the housing bottom away from the handle, and a seal cover is provided on the end of the housing away from the handle. An auxiliary brush is provided on the side. In the present invention, by loosening the handle, the sliding plate and the main brush hit the sealing cover under the action of the buffer spring, thereby removing the dust on the main brush, on the one hand, it is convenient to remove the dust, and on the other hand, the dust stays in the sealing cover Inside, it can avoid dust splashing everywhere, and it is more environmentally friendly. By setting up an auxiliary brush, when the teacher makes a mistake in writing, he only needs to wipe individual wrong letters instead of wiping the whole, which is convenient for English teachers to use.

Description

technical field [0001] The invention relates to the technical field of blackboard erasers, in particular to an environment-friendly blackboard eraser suitable for college English teachers. Background technique [0002] At present, traditional blackboard erasers are composed of a board body and a wiper head. The front of the board body is fixedly connected with the wiper head. When in use, the wiper head contacts the blackboard to perform erasing work. However, due to the working method of wiping the head to erase chalk characters, there is a problem of dust flying when the traditional blackboard eraser is used. Moreover, the traditional blackboard eraser has a relatively large wiping area. When an English teacher writes and some letters are wrongly written, it is easy to erase all the letters next to the wrong letter, which is inconvenient to use. Contents of the invention [0003] The purpose of the present invention is to provide a kind of environment-friendly blackboar...

AI Technical Summary

Problems solved by technology

However, due to the working method of wiping the head to erase chalk characters, there is a problem of dust flying when the traditional blackboard eraser is used.

Moreover, the traditional blackboard eraser has a relatively large wiping area. When an English teacher writes, when some letters are wrongly written, it is easy to erase all the letters next to the wrong letter, which is inconvenient to use.

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