Convenient-to-clean chalk dust receiving groove for blackboard

Convenient-to-clean chalk dust receiving groove for blackboard

The utility model relates to teaching aids, in particular to a convenient-to-clean chalk dust receiving groove for a blackboard. The chalk dust receiving groove comprises a supporting plate (2) and is characterized in that a dust removing device is mounted on the supporting plate (2); the dust remov...

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1. Verfasser: SHAO XIANXIANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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creator SHAO XIANXIANG
description The utility model relates to teaching aids, in particular to a convenient-to-clean chalk dust receiving groove for a blackboard. The chalk dust receiving groove comprises a supporting plate (2) and is characterized in that a dust removing device is mounted on the supporting plate (2); the dust removing device comprises rotating wheels (1), a conveyor belt (3), a rocking handle (4) and a dust receiving box (5), wherein the rotating wheels (1) are respectively fixed at two ends of the supporting plate (2) and are connected with the conveyor belt (3); the rocking handle (4) is fixed on the rotating wheel (1) at one end of the supporting plate (2), and the dust receiving box (5) is hung under the rotating wheel (1) at the other end of the supporting plate (2). The utility model has the benefits that the convenient-to-clean chalk dust receiving groove for a blackboard has a simple structure, is convenient to operate and is good for people's health.
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language chi ; eng
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subjects ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
title Convenient-to-clean chalk dust receiving groove for blackboard
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