CN2157050Y - 吸水式除尘黑板擦 - Google Patents

吸水式除尘黑板擦 Download PDF

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Publication number
CN2157050Y
CN2157050Y CN 93210265 CN93210265U CN2157050Y CN 2157050 Y CN2157050 Y CN 2157050Y CN 93210265 CN93210265 CN 93210265 CN 93210265 U CN93210265 U CN 93210265U CN 2157050 Y CN2157050 Y CN 2157050Y
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blackboard eraser
dust
water absorbing
blackboard
chalk dust
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贾洪明
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Abstract

普通黑板擦的擦体用麻类粘带制成,这种擦体没 有吸尘功能,因而粉尘飞扬,近年来研制的电动式和 机械式两种吸尘式黑板擦,虽然能抑制粉尘,但体积 较大,故障率高,耗费能源,成本高,本实用新型解决 了普通黑板擦和电动式,机械式板擦的不足,擦面利 用塑料泡沫材料,擦面的纵向开有槽缝、板擦放在吸 水物上,使用时可有效的抑制粉尘。

Description

本实用新型属教学用具。
多年来,教学中普遍使用的黑板擦,其擦体多为麻类粘带制成,因这种擦体没有吸尘功能,使用时粉尘飞扬,即不卫生,又有碍教师身体健康。
近年来,不断有人研制吸尘式黑板擦,其大体可分为两种类型。一种为电动吸尘式,另一种为机械吸尘式,它们虽然能抑制粉尘飞扬,但确有共同的缺点,即体积大,重量大、故障率高,怕摔碰,耗费能源,使用时噪声大、成本较高。
本实用新型针对普通黑板擦和电动式、机械式两种吸尘式黑板擦的不足,为人们提供了一种结构简单、轻巧灵便、不用能源、经久耐用、具有良好除尘效果的除尘黑板擦。
本实用新型仍然保持了普通黑板擦的结构和形状,即由托板和擦体组成,托板材料为木质或塑料,擦体材料为塑料泡沫,泡沫的耐磨性大大超过普通黑板擦的擦体,又因其具有细小的微孔,因而能够吸收粉尘。本发明是在塑料泡沫擦体的擦面的纵向每隔8毫米开一槽缝,这样能够大大提高板擦的纳尘量和擦净度,和板擦配合使用的还需一吸水物,使用时板擦放在上面时,擦体和吸水物接触受潮,吸水物可用毛巾等。(抹布)
本实用新型能较好的抑制粉尘,不脏手和讲桌,擦净度高,纳尘量大,结构简单,使用方便,克服了普通板擦和电动式、机械式黑板擦的不足。
附图是本实用新型的立体示意图。
实现本发明的最好方式见附图,把擦体的擦面加工成微向外凸的弧状,纵向每隔8毫米开一槽缝板。吸水物可用一湿润旧毛巾,板擦放在上面时,擦面接触毛巾吸水受潮,擦用时,粉尘被泡沫所吸收和粘附,擦完后,仍将板擦放在毛巾上,擦面上的粉尘便可掉落在毛巾上,同时,又使擦面继续受潮,毛巾每天涮洗一次,并兼做抹布和擦手巾。

Claims (2)

1、一种新型除尘黑板擦,它是由托板、擦体、吸水物组成,其特征在于:
a、擦体为塑料泡沫制成。
b、在擦体的擦面的纵向开有槽缝。
2、根据权利要求1所述的除尘黑板擦,其特征在于:
a、有一吸水物。
b、板擦放在吸水物上时,擦体和吸水物触受潮。
CN 93210265 1993-04-20 1993-04-20 吸水式除尘黑板擦 Expired - Fee Related CN2157050Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93210265 CN2157050Y (zh) 1993-04-20 1993-04-20 吸水式除尘黑板擦

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93210265 CN2157050Y (zh) 1993-04-20 1993-04-20 吸水式除尘黑板擦

Publications (1)

Publication Number Publication Date
CN2157050Y true CN2157050Y (zh) 1994-02-23

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Family Applications (1)

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CN 93210265 Expired - Fee Related CN2157050Y (zh) 1993-04-20 1993-04-20 吸水式除尘黑板擦

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CN (1) CN2157050Y (zh)

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