CN203236897U - 粉笔书写套筒 - Google Patents

粉笔书写套筒 Download PDF

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Publication number
CN203236897U
CN203236897U CN 201320141299 CN201320141299U CN203236897U CN 203236897 U CN203236897 U CN 203236897U CN 201320141299 CN201320141299 CN 201320141299 CN 201320141299 U CN201320141299 U CN 201320141299U CN 203236897 U CN203236897 U CN 203236897U
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chalk
sleeve
latch
advances
cover
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CN 201320141299
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王伟
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Abstract

一种粉笔书写套筒,包括粉笔套筒,粉笔推进套二部分,粉笔套筒上设有卡口;粉笔推进套上设有卡齿;粉笔的头部***粉笔推进套中;使用时大拇指推动卡齿,粉笔便伸出,转动卡齿,粉笔就会固定,使用方便,减少浪费。

Description

粉笔书写套筒
技术领域
本实用新型涉及一种粉笔书写套筒。
背景技术
目前,公知的粉笔是没有套筒的,它那容易折断,剩得较少时不好使用,浪费的情况相当严重。
发明内容
为了克服粉笔存在的不足,本实用新型提供一种粉笔书写套筒,使粉笔不易折断,再少的粉笔也像使用整支粉笔一样舒服。
本使用新型解决其技术问题所采取的方案是:一种粉笔书写套筒,包括粉笔套筒,粉笔推进套二部分,粉笔套筒上设有卡口;粉笔推进套上设有卡齿;粉笔的头部***粉笔推进套中;使用时大拇指推动卡齿,粉笔便伸出,转动卡齿,粉笔就会固定。
本实用新型的有益效果是,使用方便,减少浪费。
附图说明
图1,是本实用新型的结构示意图。
图1中,1—粉笔套筒,2—粉笔推进套,3—卡口,4—卡齿,5—粉笔。
具体实施方式
如图1所示,一种粉笔书写套筒,包括粉笔套筒,粉笔推进套二部分,粉笔套筒1上设有卡口3;粉笔推进套2上设有卡齿4;粉笔5的头部***粉笔推进套2中;使用时大拇指推动卡齿4,粉笔5便伸出,转动卡齿4,粉笔5就会固定。

Claims (1)

1.一种粉笔书写套筒,其特征是:包括粉笔套筒,粉笔推进套二部分,粉笔套筒(1)上设有卡口(3);粉笔推进套(2)上设有卡齿(4);粉笔(5)的头部***粉笔推进套(2)中;使用时大拇指推动卡齿(4),粉笔(5)便伸出,转动卡齿(4),粉笔(5)就会固定。
CN 201320141299 2013-03-26 2013-03-26 粉笔书写套筒 Expired - Fee Related CN203236897U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320141299 CN203236897U (zh) 2013-03-26 2013-03-26 粉笔书写套筒

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320141299 CN203236897U (zh) 2013-03-26 2013-03-26 粉笔书写套筒

Publications (1)

Publication Number Publication Date
CN203236897U true CN203236897U (zh) 2013-10-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320141299 Expired - Fee Related CN203236897U (zh) 2013-03-26 2013-03-26 粉笔书写套筒

Country Status (1)

Country Link
CN (1) CN203236897U (zh)

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Granted publication date: 20131016

Termination date: 20140326