CN2087572U - 吸尘黑板擦 - Google Patents

吸尘黑板擦 Download PDF

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Publication number
CN2087572U
CN2087572U CN 90227037 CN90227037U CN2087572U CN 2087572 U CN2087572 U CN 2087572U CN 90227037 CN90227037 CN 90227037 CN 90227037 U CN90227037 U CN 90227037U CN 2087572 U CN2087572 U CN 2087572U
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blackboard eraser
dust
felt
dust absorption
absorption blackboard
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CN 90227037
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English (en)
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吴立民
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Individual
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Individual
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Priority to CN 90227037 priority Critical patent/CN2087572U/zh
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Abstract

本实用新型吸尘黑板擦,是一种教学上用来吸入 粉笔末使用的工具,把原有黑板擦的毡面改为三条大 小,粗细均匀的毡条,三者之间匀有五到六毫米的空 隙,并在黑板擦的底部设有一个储灰箱,这样,在擦黑 板时,可把擦掉的粉笔末90%通过3个间隙吸入灰 箱,起到了防止灰尘到处飞扬的作用。

Description

本实用新型属教学用工具。
目前使用的黑板擦不能解决粉笔秣到处飞扬的问题,擦黑板时粉笔秣会落人一身,这样既不卫生,又对人体有害。
本实用新型的目的是为了解决上述问题,可把擦掉的粉笔秣90%以上装入黑板擦内,使用时看不到粉笔秣的飞扬,更不会落人一身,能吸尘黑板擦。
本实用新型的基本构思是这样实现的,它可用木制也可用塑制,把原有黑板擦的整片毡面改为三条大小,粗细均匀的毡条,三者间匀有五到六毫米的空隙,底部设有一个留口的储灰箱,在擦黑板时灰尘可顺着空隙滑入储灰箱。
本实用新型的具体结构由以下实施例及其附图给出。
图1是根据本实用新型提出的吸尘黑板擦的视图。
下面结合图1详细说明依据本实用新型提出的具体工作情况。
该吸尘黑板擦由毡条(1),橡胶”密封环(2),储灰箱(4)等组成,把原有黑板擦的整片毡面改为三条大小,粗细均匀的毡条(1),三者间匀有五到六毫米的空隙(3),底部门有一个留口的储灰箱(4),黑板擦外围加上橡胶密封环(2),橡胶密封环(2)要高出毡条(1)的面1毫米,橡胶密封环(2)里面带有一定的少度,使用时,储灰箱(4)向上,橡胶密封环(2)紧扣于黑板面,灰尘就可以顺着三个毡条(1)间的空隙(3)滑入储灰箱(4)内,起到防止粉笔秣到处飞扬的作用。

Claims (3)

1、一种能吸尘黑板擦,它由储灰箱(4),毡条(1),橡胶密封环(2)组成,其特征在于吸尘黑板擦的毡面改为带有空隙(3)的三条大小,粗细均匀的毡条(1)。
2、如权利要求1所述吸尘黑板擦,其特征在于吸尘黑板擦设有一个储灰箱(4)。
3、如权利要求1、2所述的吸尘黑板擦,其特征在于吸尘黑板擦外围加上了高出毡条(1)面1毫米带有一定斜度的橡胶封环(2)。
CN 90227037 1990-12-26 1990-12-26 吸尘黑板擦 Withdrawn CN2087572U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90227037 CN2087572U (zh) 1990-12-26 1990-12-26 吸尘黑板擦

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90227037 CN2087572U (zh) 1990-12-26 1990-12-26 吸尘黑板擦

Publications (1)

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CN2087572U true CN2087572U (zh) 1991-10-30

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CN 90227037 Withdrawn CN2087572U (zh) 1990-12-26 1990-12-26 吸尘黑板擦

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CN (1) CN2087572U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104669891A (zh) * 2015-02-06 2015-06-03 上海理工大学 一种贴心黑板擦

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104669891A (zh) * 2015-02-06 2015-06-03 上海理工大学 一种贴心黑板擦

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