CN201235671Y - 粉笔套 - Google Patents

粉笔套 Download PDF

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Publication number
CN201235671Y
CN201235671Y CNU2008201305191U CN200820130519U CN201235671Y CN 201235671 Y CN201235671 Y CN 201235671Y CN U2008201305191 U CNU2008201305191 U CN U2008201305191U CN 200820130519 U CN200820130519 U CN 200820130519U CN 201235671 Y CN201235671 Y CN 201235671Y
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China
Prior art keywords
chalk
sleeve
nut
utility
hand
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Expired - Fee Related
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CNU2008201305191U
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English (en)
Inventor
吴灏
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Individual
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Individual
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Priority to CNU2008201305191U priority Critical patent/CN201235671Y/zh
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Abstract

本实用新型是一种防止粉笔在写字时易折断的专用粉笔套,它由套和螺母组成,其中,套为圆筒体,一端为盲头,另一端开口设有三条缺口槽,外壁连接一螺母。这种粉笔套,粉笔装在套内露出一小段夹紧,手拿在套上写字,粉笔不会折断、手不会沾上粉笔灰很卫生。

Description

粉笔套
所属技术领域
本实用新型涉及一种防止粉笔在写字时易折断的专用粉笔套。
背景技术
现在粉笔写字是用手直接拿粉笔来写,因手用力不当等原因,粉笔经常会被折断,同时手还会沾上粉笔灰。
发明内容
为了克服现在用手拿着粉笔写字存在粉笔易被折断、手会沾上粉笔灰的不足,本实用新型的目的提供一种粉笔不易折断、手不会沾上粉笔粉的粉笔套。
本实用新型解决问题所采用的技术方案是:它由套和螺母组成,其中套为圆筒体,一端为盲头,另一端开口设有三条缺口槽,外壁与螺母连接。粉笔装入套内,露出一小段,旋紧螺母将粉笔夹紧,因粉笔用力点的力臂很短,减小了粉笔的压力;手拿在套上写字很卫生,从而达到本实用新型粉笔不易折断、手不会沾上粉笔灰的目的。
本实用新型的有益效果是,粉笔不易折断,手不会沾上粉笔灰,还能节省粉笔。
附图说明
下面结合附图和实施例对本实用新型进一步说明。
图1、2是本实用新型实施例的A-A、B-B纵剖面结构图。
图中  1、螺母  2、套
具体实施方式
在图1、2所示的实施例中,套2为圆筒体,内径略大于粉笔外径,一端为盲头,另一端开口设有三条缺口槽2-1,外壁连接一螺母1,螺母1为锥形螺母,旋紧螺母1时三条缺口槽2-1的内径会缩小去夹紧粉笔。

Claims (2)

1、一种粉笔套,它由套和螺母组成,其特征是:套为圆筒体,一端为盲头,另一端开口设有三条缺口槽,外壁连接一螺母。
2、根据权利要求1所述的粉笔套,其特征是:螺母为锥形螺母。
CNU2008201305191U 2008-06-26 2008-06-26 粉笔套 Expired - Fee Related CN201235671Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201305191U CN201235671Y (zh) 2008-06-26 2008-06-26 粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201305191U CN201235671Y (zh) 2008-06-26 2008-06-26 粉笔套

Publications (1)

Publication Number Publication Date
CN201235671Y true CN201235671Y (zh) 2009-05-13

Family

ID=40648410

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201305191U Expired - Fee Related CN201235671Y (zh) 2008-06-26 2008-06-26 粉笔套

Country Status (1)

Country Link
CN (1) CN201235671Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105599492A (zh) * 2016-02-19 2016-05-25 刘乐凝 一种粉笔壳

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105599492A (zh) * 2016-02-19 2016-05-25 刘乐凝 一种粉笔壳

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090513

Termination date: 20100626