CN201998671U - 一种带有滚动黑板擦的黑板 - Google Patents

一种带有滚动黑板擦的黑板 Download PDF

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Publication number
CN201998671U
CN201998671U CN 201120079957 CN201120079957U CN201998671U CN 201998671 U CN201998671 U CN 201998671U CN 201120079957 CN201120079957 CN 201120079957 CN 201120079957 U CN201120079957 U CN 201120079957U CN 201998671 U CN201998671 U CN 201998671U
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China
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blackboard
roller
eraser
fixed pulley
rolling
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Expired - Fee Related
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CN 201120079957
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English (en)
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陈子寒
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Yangxing Middle School Affiliated to East China Normal University
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Yangxing Middle School Affiliated to East China Normal University
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Abstract

本实用新型涉及一种带有滚动黑板擦的黑板,包括黑板和挡板,挡板垂直设于黑板底端,它还包括黑板擦、定滑轮和拉绳,黑板的左右两边各设有一条滑槽,黑板擦的左右两边各设有一个滚轮,左右两侧的滚轮分别嵌在左右两侧的滑槽内,滚轮沿滑槽滚动,黑板侧面的顶部设有定滑轮,拉绳嵌在定滑轮的轮槽内,拉绳的一端与黑板擦一端固定。本实用新型擦黑板既快又方便,结构简单,使用方便,省时省力。

Description

一种带有滚动黑板擦的黑板
技术领域
[0001] 本实用新型涉及一种黑板,具体的说是一种带有滚动黑板擦的黑板。 背景技术
[0002] 学校里普遍使用的都是黑板,但是每次下课擦黑板确实很麻烦,尤其是老师课上到一半,板书写满了,要擦,我们经常会发现,老师上一次课,要擦好几次黑板,粉笔灰多,且浪费时间。
发明内容
[0003] 本实用新型旨在克服现有技术的缺陷,提供一种带有滚动黑板擦的黑板,结构简单,擦黑板既快又方便。
[0004] 为了解决上述技术问题,本实用新型是这样实现的:
[0005] 一种带有滚动黑板擦的黑板,包括黑板和挡板,挡板垂直设于黑板底端,其特征在于:它还包括黑板擦、定滑轮和拉绳,黑板的左右两边各设有一条滑槽,黑板擦的左右两边各设有一个滚轮,左右两侧的滚轮分别嵌在左右两侧的滑槽内,滚轮沿滑槽滚动,黑板侧面的顶部设有定滑轮,拉绳嵌在定滑轮的轮槽内,拉绳的一端与黑板擦一端固定。
[0006] 本实用新型的有益效果是:带有滚轮的黑板擦,擦黑板既快又方便,结构简单,使用方便,省时省力。
附图说明
[0007] 下面结合附图和实施方式对本实用新型作进一步的详细说明:
[0008] 图1为本实用新型的结构示意图。
[0009] 图2为图1的左视图。
[0010] 图3为滚轮嵌在滑槽内的结构示意图。
具体实施方式
[0011] 如图1、图2、图3所示:一种带有滚动黑板擦的黑板,包括黑板1、挡板2、黑板擦 3、定滑轮4和拉绳5,挡板2垂直设于黑板1底端,黑板1的左右两边各设有一条滑槽6,黑板擦3的左右两边各设有一个滚轮7,左右两侧的滚轮7分别嵌在左右两侧的滑槽6内,滚轮7沿滑槽6滚动,黑板1侧面的顶部设有定滑轮4,拉绳5嵌在定滑轮4的轮槽内,拉绳 5的一端与黑板擦3 —端固定,带有滚轮的黑板擦3,擦黑板既快又方便,结构简单,使用方便,省时省力。

Claims (1)

1. 一种带有滚动黑板擦的黑板,包括黑板和挡板,挡板垂直设于黑板底端,其特征在于:它还包括黑板擦、定滑轮和拉绳,黑板的左右两边各设有一条滑槽,黑板擦的左右两边各设有一个滚轮,左右两侧的滚轮分别嵌在左右两侧的滑槽内,滚轮沿滑槽滚动,黑板侧面的顶部设有定滑轮,拉绳嵌在定滑轮的轮槽内,拉绳的一端与黑板擦一端固定。
CN 201120079957 2011-03-24 2011-03-24 一种带有滚动黑板擦的黑板 Expired - Fee Related CN201998671U (zh)

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CN 201120079957 CN201998671U (zh) 2011-03-24 2011-03-24 一种带有滚动黑板擦的黑板

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CN 201120079957 CN201998671U (zh) 2011-03-24 2011-03-24 一种带有滚动黑板擦的黑板

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CN201998671U true CN201998671U (zh) 2011-10-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108973456A (zh) * 2018-06-29 2018-12-11 王小兰 一种自动擦除粉尘的课堂教学黑板系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108973456A (zh) * 2018-06-29 2018-12-11 王小兰 一种自动擦除粉尘的课堂教学黑板系统

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Granted publication date: 20111005

Termination date: 20120324