Large-area chalk brush

The utility model relates to a large-area chalk brush used for to wiping a blackboard by a teacher. The upper side and the lower side of the blackboard are both provided with a slot, the large-area chalk brush is provided with a long-strip chalk brush cover, both sides of the long-strip chalk brush...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JIAN ZICONG, WEN DAIYING
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model relates to a large-area chalk brush used for to wiping a blackboard by a teacher. The upper side and the lower side of the blackboard are both provided with a slot, the large-area chalk brush is provided with a long-strip chalk brush cover, both sides of the long-strip chalk brush cover are inclined towards the center, spaces contained in the two sides are provided with chalk brushes, both ends of the chalk brush cover are provided with wheels, and the wheels at two ends are respectively arranged in the slots at the upper side and the lower side. The large-area chalk brush can reduce the blackboard wiping times of the teacher, has high blackboard wiping efficiency and reduces chalk ash flying.