CN2305298Y - 无尘黑板擦 - Google Patents

无尘黑板擦 Download PDF

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Publication number
CN2305298Y
CN2305298Y CN 97223017 CN97223017U CN2305298Y CN 2305298 Y CN2305298 Y CN 2305298Y CN 97223017 CN97223017 CN 97223017 CN 97223017 U CN97223017 U CN 97223017U CN 2305298 Y CN2305298 Y CN 2305298Y
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suede
wiped
elastic tape
wall
dust
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Expired - Fee Related
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CN 97223017
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李正荣
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Individual
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Abstract

无尘黑板擦,由外壳、绒擦组成,外壳内壁附有一层橡皮圈,橡皮圈上附有薄绒,绒擦上有孔,绒擦与外壳内壁间有一定距离,该黑板擦具有吸尘能力强、制作方便、成本低等特点。

Description

无尘黑板擦
无尘黑板擦,属教学用具。
现今的黑板擦,或无吸尘能力或吸尘能力不强,擦黑板时产生大量粉尘,对教师的身体有很大的损害。
本实用新型的目的是发明一种吸尘能力强、制作简单、成本低的黑板擦。
本实用新型是这样组成的:由外壳、绒擦组成,外壳内壁附有一层橡皮圈,橡皮圈上附有薄绒,绒擦上有4-8个孔,绒擦与外壳内壁有一定距离,橡皮圈比外壳高1.5cm左右,橡皮圈与绒擦水平或比绒擦稍低。
由于外壳内壁有薄绒,绒擦上有孔及绒擦与外壳内壁间有距离,橡皮圈比外壳高,因此能大量吸附粉尘,在使用时可达无尘之效果。
下面结合附图对本实用新型作进一步详述:
图1为本实用新型的主视图。
图中,1为外壳,2为外壳内壁,3为薄绒,4为绒擦,5为孔,6为橡皮圈。
该无尘黑板擦由外壳(1)、绒擦(4)组成,外壳内壁(2)上附有橡皮圈(6),橡皮圈(6)上附有薄绒(3),绒擦(4)上有6个方孔(5),绒擦(4)与外壳内壁(2)距离1cm左右,橡皮圈(6)高出外壳(1)1.5cm左右,橡皮圈(6)与绒擦(4)水平或比绒擦稍低。

Claims (3)

1、无尘黑板擦,由外壳、绒擦组成,其特征在于外壳内壁附有一层橡皮圈,橡皮圈上附有薄绒,绒擦与外壳内壁有一定距离,绒擦上有孔。
2、根据权利要求1所述的无尘黑板擦,其特征在于绒擦上有4-8个方孔。
3、根据权利要求1所述的无尘黑板擦,其特征在于橡皮圈伸出外壳外1.5cm左右,橡皮圈与绒擦水平或比绒擦稍低。
CN 97223017 1997-05-16 1997-05-16 无尘黑板擦 Expired - Fee Related CN2305298Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97223017 CN2305298Y (zh) 1997-05-16 1997-05-16 无尘黑板擦

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97223017 CN2305298Y (zh) 1997-05-16 1997-05-16 无尘黑板擦

Publications (1)

Publication Number Publication Date
CN2305298Y true CN2305298Y (zh) 1999-01-27

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Family Applications (1)

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CN 97223017 Expired - Fee Related CN2305298Y (zh) 1997-05-16 1997-05-16 无尘黑板擦

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CN (1) CN2305298Y (zh)

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