CN2264677Y - 封密式黑板擦 - Google Patents

封密式黑板擦 Download PDF

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CN2264677Y
CN2264677Y CN 96216442 CN96216442U CN2264677Y CN 2264677 Y CN2264677 Y CN 2264677Y CN 96216442 CN96216442 CN 96216442 CN 96216442 U CN96216442 U CN 96216442U CN 2264677 Y CN2264677 Y CN 2264677Y
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cabin body
sealed cabin
blackboard eraser
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徐帮袤
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Abstract

本实用新型涉及一种封密式黑板擦,主要由顶盖、带槽的密封仓体、弹簧,设在带有十字架的盖板下面的载有刷芯的刷盒和设在密封仓体底面突出部上胶条构成,本实用新型结构简单、方便实用,能有效地收集粉笔灰尘,有利于教室的卫生环境,教师和学生的身体健康。

Description

封密式黑板擦
本实用新型涉及一种封密式黑板擦,属于教学用具。
目前用于教学的黑板擦,一般比较简单,没有考虑卫生问题,在擦黑板时,粉笔灰到处弥漫,不但污染教室环境,弄脏教师的手和衣服,且严重影响了教师和学生的身体健康,这已经成为教学和学生身心健康的一大隐患。
本实用新型的目的是提供一种能够收集粉笔灰尘的黑板擦。
为达到上述目的,本实用新型采用的解决方案是:把载有刷芯的刷盒设在带有十字架的盖板下面,十字架交叉处装有弹簧,从而构成黑板擦的活动部分,在密封仓体的内侧四面设有与盖板上的十字架相配合的槽,使黑板擦的活动部分放在密封仓体内可沿槽运动,在密封仓体的底沿四周设有向内突出部,在突出部四周内侧设有一层与突出部水平面成5°-10°角的胶条,在密封仓体上有一顶盖板,压迫弹簧,刷芯平面突出突封仓体底平面。
下面结合附图对本实用新型作进一步描述。
附图1为本实用新型结构示意图。
附图2为本实用新型整体结构示意图。
如图所示,本实用新型包括顶盖1,密封仓体7,刷盒5和刷芯6,其结构特点是:把载有刷芯6的刷盒设在带有十字架3的盖板4下面,十字架3交叉处装有弹簧2,从而构成黑板擦的活动部分,在密封仓体7的内侧四面均设有与十字架3相配合的槽8,使黑板擦的活动部分放在密封仓体内可沿槽运动,在密封仓体7的底沿四周设有向内突出部10,在突出部10四周内侧设有一层与突出部10水平面成5°-10°角的胶条9,在密封仓体上有一顶盖,压迫弹簧,刷芯6平面突出密封仓体底平面。
在擦黑板时,封密式黑板擦的刷芯6(即活动部分)在黑板的压迫下使弹簧变形,这是密封仓体7的底面贴近黑板,胶条9与黑板紧贴,刷芯6擦下的粉笔灰尘被胶条9收集,因此控制粉笔灰尘的漫延。
从上述可知,本实用新型结构简单,成本低,且方便实用。

Claims (2)

1、一种封密式黑板擦,包括顶盖、密封仓体、刷盒和刷芯,其特征在于载有刷芯的刷盒设在带有十字架的盖板下面,十字架交叉处装有弹簧,构成黑板擦的活动部分,在密封仓体的内侧四面设有与盖板上的十字架相配合的槽,使黑板擦的活动部分放在密封仓体内可沿槽运动,在密封仓体的底沿四周设有向内突出部,在突出部四周内侧设有一层与突出部水平面成5°-10°角的胶条,在密封仓体上有一顶盖,压迫弹簧。
2、按权利要求书1所述的封密式黑板擦,其特征在于刷芯平面突封仓体底平面。
CN 96216442 1996-07-28 1996-07-28 封密式黑板擦 Expired - Fee Related CN2264677Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96216442 CN2264677Y (zh) 1996-07-28 1996-07-28 封密式黑板擦

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Application Number Priority Date Filing Date Title
CN 96216442 CN2264677Y (zh) 1996-07-28 1996-07-28 封密式黑板擦

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CN2264677Y true CN2264677Y (zh) 1997-10-15

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CN 96216442 Expired - Fee Related CN2264677Y (zh) 1996-07-28 1996-07-28 封密式黑板擦

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105172440A (zh) * 2015-07-28 2015-12-23 杨柳青 一种环保黑板刷装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105172440A (zh) * 2015-07-28 2015-12-23 杨柳青 一种环保黑板刷装置

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