Dust collection type blackboard eraser

The utility model discloses a dust collection type blackboard eraser, and relates to the technical field of teaching aids. A dust collection sponge is arranged on the surface of a fixed cavity, and the rear end of the fixed cavity is connected with a dust collection box through a dust collection pip...

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Bibliographic Details
Main Author TIAN JINGBING
Format Patent
LanguageEnglish
Published 01.10.2014
Subjects
ACCESSORIES FOR WRITING OR DRAWING
ARTICLES FOR WRITING OR DRAWING UPON
BUREAU ACCESSORIES
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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Summary:The utility model discloses a dust collection type blackboard eraser, and relates to the technical field of teaching aids. A dust collection sponge is arranged on the surface of a fixed cavity, and the rear end of the fixed cavity is connected with a dust collection box through a dust collection pipe. The dust collection box is fixed to a main shell, and a dust collection filter screen is arranged in the dust collection box. A switch is arranged at the upper portion of the main shell. A plurality of heat dissipation holes are formed in the side surface of the main shell. A charging jack is formed in one sides of the heat dissipation holes. The dust collection type blackboard eraser can overcome shortcomings in the prior art, erase a blackboard conveniently and improve the teaching environment for teachers better, and is reasonable and novel in physical design, convenient to use, small in size, low in manufacturing cost, excellent in dust collection effect and suitable for wide popularization.
Bibliography:Application Number: CN20142290768U