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Dustless blackboard eraser

A blackboard eraser and vacuum cleaner technology, which is applied in the field of teaching tools and blackboard erasers, can solve the problems of affecting health, chalk foam flying randomly, affecting indoor air, etc., and achieves the effects of simple structure, preventing random flying, and convenient use

Inactive Publication Date: 2012-02-08
李杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The blackboard eraser currently used often causes chalk foam to fly around when wiping the blackboard, which affects the indoor air. If it is inhaled, it will also affect the health of the body. The person who wipes the blackboard is covered with chalk foam

Method used

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  • Dustless blackboard eraser
  • Dustless blackboard eraser

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Experimental program
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Embodiment Construction

[0011] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes a handle 1 and a brush 2 engaged on one side of the handle 1, and the feature is that: the handle 1 has a cavity 3 inside, and the side of the handle 1 where the brush 2 is engaged is provided with a suction hole 4; The other side of the handle 1 is a buckle cover 5 , and a vacuum cleaner 6 is arranged inside the buckle cover 5 ; a battery 8 is placed on the side of the vacuum cleaner 6 . The surface of the vacuum cleaner 6 is covered with a filter screen 7; the surface of the handle 1 is provided with a switch 9.

[0012] With the dust-free blackboard eraser of the present invention, the switch 9 is turned on before wiping the blackboard, so that the vacuum cleaner 6 inside is operated, and when the blackboard is wiped, the dropped chalk foam is sucked into the cavity 3 from the dust suction hole 4 by the vacuum cleaner 6 , when the blackboard is wiped, the buckle ...

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PUM

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Abstract

The invention relates to a blackboard eraser, in particular to a dustless blackboard eraser, belonging to a teaching aid. The dustless blackboard eraser comprises a handle and a hairbrush accommodated at one lateral side of the handle. The dustless blackboard eraser is characterized in that a cavity is formed in the handle, dust absorbing holes are formed at the lateral side of the handle where the hairbrush is accommodated; the other lateral side of the handle is a buckle cover, and a dust collector is arranged in the internal side of the buckle cover; and the lateral part of the dust collector is provided with a battery. The blackboard eraser is simple in structure, convenient and practicable and can prevent chalk dust from flying.

Description

(1) Technical field [0001] The invention relates to a blackboard eraser, in particular to a dust-free blackboard eraser. Belongs to teaching aids. (2) Background technology [0002] The blackboard eraser used now often makes chalk foam fly randomly when wiping the blackboard, affecting the indoor air. If it is sucked into the mouth, it will also affect health. (3) Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the invention provides a dust-free blackboard eraser with simple structure, convenient practicality and effective dust removal. [0004] The present invention is achieved through the following technical solutions: [0005] A dust-free blackboard eraser, comprising a handle and a brush attached to one side of the handle, characterized in that: there is a cavity inside the handle, and a dust suction hole is arranged on the side of the handle where the brush is attached; the other side of the handle The side is a buckle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 李杰
Owner 李杰