Rotating environment-friendly blackboard eraser

Abstract

The invention relates to a rotating environment-friendly blackboard eraser, comprising a bottom box with an upper opening and an eraser head assembly. The rotating environment-friendly blackboard eraser is characterized in that the eraser head assembly comprises a triangular prism and bristle or dust collection wipers, wherein the triangular prism is transversely arranged in the bottom box, and the bristle or the dust collection wipers are arranged on the three side faces of the triangular prism, and in addition, the bottom box is provided with a driving assembly for driving the eraser head assembly to rotate and make different side faces transform to an upper end face. For the rotating environment-friendly blackboard eraser, the triangular prism which is rotatablely arranged in the bottom box and is provided with the bristle or the dust collection wipers on the three side faces is used as the eraser head assembly, and with the skillful adoption of the structure, when the rotating environment-friendly blackboard eraser is used, the wiping end face of the blackboard eraser can be continuously changed through rotating the triangular prism so that the use is very convenient. In addition, dust adsorbed on the end face of the eraser head assembly can fall into the bottom box, thereby dust is effectively prevented from flying, the cleanness of surrounding is ensured, and the use is environment-friendly.

Description

technical field [0001] The invention relates to the field of teaching tools, in particular to a rotary environment-friendly blackboard eraser. Background technique [0002] Traditional blackboard erasers are mostly composed of bottom boxes and bristles. When this kind of blackboard eraser wipes the chalk on the blackboard, the dust is flying everywhere, which seriously affects the health of students and teachers, and also affects the cleanliness of the surrounding environment. So some people replace the bristle part with a dust-absorbing cloth structure, so that although it can effectively reduce the flying of dust when wiping the blackboard at the beginning, after a long time of wiping, the inside of the dust-absorbing cloth is full of dust, which makes the dust when wiping. Flying around, so that the wiper has to put the blackboard eraser on the edge of the table or the blackboard and tap it lightly to promote the dust in the blackboard eraser to fall out, so as to reduce...

AI Technical Summary

Problems solved by technology

[0002] Most of the traditional blackboard erasers are composed of a bottom box and bristles. When this kind of blackboard eraser wipes the chalk characters on the blackboard, the dust is flying everywhere, which seriously affects the students. and the health of teachers, but also affects the cleanliness of the surrounding environment

So some people replace the bristle part with a dust-absorbing cloth structure, so that although it can effectively reduce the flying of dust when wiping the blackboard at the beginning, after a long time of wiping, the inside of the dust-absorbing cloth is full of dust, which makes the dust when wiping. Flying around, so that the eraser has to put the blackboard eraser on the edge of the table or the blackboard and tap it lightly to promote the dust in the blackboard eraser to fall out, so as to reduce the dust in the dust-absorbing cloth. The dust that comes out seriously affects the cleanliness of the surrounding environment, so it is difficult to meet the requirements of the majority of teachers

Many people have invented dust-absorbing blackboard erasers with built-in dust-absorbing devices, but these dust-absorbing blackboard erasers all have problems such as complex structure, high production and use costs, and are difficult to popularize.

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