CN201342884Y - 抽拉式黑板擦 - Google Patents

抽拉式黑板擦 Download PDF

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Publication number
CN201342884Y
CN201342884Y CNU2008201933557U CN200820193355U CN201342884Y CN 201342884 Y CN201342884 Y CN 201342884Y CN U2008201933557 U CNU2008201933557 U CN U2008201933557U CN 200820193355 U CN200820193355 U CN 200820193355U CN 201342884 Y CN201342884 Y CN 201342884Y
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blackboard
blackboard eraser
eraser
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stay cord
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张鸿博
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Abstract

本实用新型提供一种抽拉式黑板擦,与黑板等宽的长条黑板擦,垂直设置在黑板的平面上,该黑板擦的下端位于黑板下方的轨道内,上端分两侧连接在拉绳上,所述拉绳缠绕在黑板两侧边所设的滚轮之中,并与黑板下侧设置的滚轮勾链构成循环拉绳。使用时,用手抽拉黑板下侧滚轮上的拉绳,可使黑板擦在黑板上左右平移,即可一次性擦掉黑板上的粉笔字,具有擦字快和远离灰尘,有利健康的特点。

Description

抽拉式黑板擦
技术领域
本实用新型涉及一种黑板擦,具体的说是一种抽拉式黑板擦。
背景技术
现在使用的黑板擦,一般都是手持式的,即用手抓住直接在黑板上来回擦字,这种传统的黑板擦在使用时,既会直接给使用者身体健康带来危害,还会直接影响擦字的速度。
发明内容
本实用新型提供一种抽拉式黑板擦,具有擦字快,有利健康的特点。
本实用新型包括黑板和滚轮,采用的技术方案是:与黑板等宽的长条黑板擦,垂直设置在黑板的平面上,该黑板擦的下端位于黑板下方的轨道内,上端分两侧连接在拉绳上,所述拉绳缠绕在黑板两侧边所设的滚轮之中,并与黑板下侧设置的滚轮勾链构成循环拉绳。
本实用新型的有益效果是:使用时,用手抽拉黑板下侧滚轮上的拉绳,可使黑板擦在黑板上左右平移,即可一次性擦掉黑板上的粉笔字,具有擦字快和远离灰尘,有利健康的特点。
附图说明
下面结合附图和实施例对本实用新型作进一步详述。
附图为本实用新型的结构示意图。
具体实施方式
附图实施例所示:与黑板1等宽的长条黑板擦2,垂直设置在黑板1的平面上,该黑板擦2的下端位于黑板1下方的轨道3内,上端分两侧连接在拉绳5上,所述拉绳5缠绕在黑板1两侧边所设的滚轮4之中,并与黑板1下侧设置的滚轮4勾链构成循环拉绳5。

Claims (1)

1、一种抽拉式黑板擦,包括黑板(1)和滚轮(4),其特征在于:与黑板(1)等宽的长条黑板擦(2),垂直设置在黑板(1)的平面上,该黑板擦(2)的下端位于黑板(1)下方的轨道(3)内,上端分两侧连接在拉绳(5)上,所述拉绳(5)缠绕在黑板(1)两侧边所设的滚轮(4)之中,并与黑板(1)下侧设置的滚轮(4)勾链构成循环拉绳(5)。
CNU2008201933557U 2008-12-01 2008-12-01 抽拉式黑板擦 Expired - Fee Related CN201342884Y (zh)

Priority Applications (1)

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CNU2008201933557U CN201342884Y (zh) 2008-12-01 2008-12-01 抽拉式黑板擦

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Application Number Priority Date Filing Date Title
CNU2008201933557U CN201342884Y (zh) 2008-12-01 2008-12-01 抽拉式黑板擦

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CN201342884Y true CN201342884Y (zh) 2009-11-11

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CNU2008201933557U Expired - Fee Related CN201342884Y (zh) 2008-12-01 2008-12-01 抽拉式黑板擦

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107813633A (zh) * 2017-11-01 2018-03-20 贾爱忠 一种多功能教育教学装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107813633A (zh) * 2017-11-01 2018-03-20 贾爱忠 一种多功能教育教学装置

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Termination date: 20101201