Detachable automatic blackboard eraser

Detachable automatic blackboard eraser

The utility model discloses a detachable automatic blackboard eraser which structurally comprises an erasing plate, a hanging plate, a connecting block, a fixing plate block, an erasing plate connecting frame and a positioning twisting block, according to the detachable automatic blackboard eraser,...

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Hauptverfasser: LIN GUOSONG, LIN ZHITONG, LIN CHIH-YING
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 LIN GUOSONG
LIN ZHITONG
LIN CHIH-YING
description The utility model discloses a detachable automatic blackboard eraser which structurally comprises an erasing plate, a hanging plate, a connecting block, a fixing plate block, an erasing plate connecting frame and a positioning twisting block, according to the detachable automatic blackboard eraser, the whole blackboard eraser is fixed to a blackboard through the hanging plate, the erasing plate is tightly attached to the blackboard, and then the blackboard can be automatically erased; when the wiping plate needs to be detached, a pull ring on a fixing block on a wiping plate connecting frame can be rotated to drive a push plate on a rotating rod to pull towards the outside of a gas pushing shell, gas in the gas pushing shell can be pumped, a pressed plate retracts towards the middle of the gas pushing shell, the push plate drives a pressurizing block on the push plate to move, and limitation on an embedded rod is relieved; by improving the structure of the equipment, when the blackboard eraser is used, the bl
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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 Detachable automatic blackboard eraser
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