CN202573422U - 粉笔套 - Google Patents

粉笔套 Download PDF

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Publication number
CN202573422U
CN202573422U CN 201220128207 CN201220128207U CN202573422U CN 202573422 U CN202573422 U CN 202573422U CN 201220128207 CN201220128207 CN 201220128207 CN 201220128207 U CN201220128207 U CN 201220128207U CN 202573422 U CN202573422 U CN 202573422U
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CN
China
Prior art keywords
chalk
chalk sleeve
sleeve
hollow bolt
pen cap
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Expired - Fee Related
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CN 201220128207
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English (en)
Inventor
邢祥爱
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邢祥爱
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Priority to CN 201220128207 priority Critical patent/CN202573422U/zh
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Publication of CN202573422U publication Critical patent/CN202573422U/zh
Anticipated expiration legal-status Critical
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Abstract

本实用新型公开了一种粉笔套,包括笔套,笔套内有螺纹连接的空心螺栓,空心螺栓的内空中放上粉笔。本实用新型的优点是:老师用粉笔书写时,手拿笔套,可以防止手上沾上粉笔灰,粉笔头也可以利用起来,减少了浪费。

Description

粉笔套
技术领域
[0001] 本实用新型涉及教学用品技术领域,具体地说是一种粉笔套。
背景技术
[0002] 普通粉笔多以熟石灰和硫酸钙为主要原料制作,易折断、粉尘多,书写时,手直接与粉笔接触,粉笔灰容易沾在手上,不干净,而且粉笔用小后就不方便书写,只有扔掉,造成浪费。
发明内容
[0003] 本实用新型的目的是设计一种在使用粉笔时不会弄脏手,且粉笔头也可使用的粉 笔套。
[0004] 本实用新型粉笔套,包括:笔套,笔套内有螺纹连接的空心螺栓,空心螺栓的内空中放上粉笔,随着螺纹的推进,粉笔不断地伸出,便于书写。
[0005] 粉笔套是这样实现的:将粉笔一头插入空心螺栓,钮动空心螺栓,将粉笔大部分旋入笔套中,手握笔套即可书写。
[0006] 本实用新型粉笔套的优点是:老师用粉笔书写时,手拿笔套,可以防止手上沾上粉笔灰,粉笔头也可以利用起来,减少了浪费。
附图说明
[0007] 图I是本实用新型的结构示意图。
具体实施方式
[0008] 下面结合附图对本实用新型做进一步描述。
[0009] 如图I所示,本实用新型的粉笔套包括笔套1,笔套I内有螺纹连接的空心螺栓2,空心螺栓2的内空中放上粉笔3。
[0010] 使用时,将粉笔3 —头插入空心螺栓2,钮动空心螺栓2,将粉笔3大部分旋入笔套I中,手握笔套I即可书写。随着螺纹的推进,粉笔不断地伸出。

Claims (1)

1. 一种粉笔套,包括:笔套,其特征在于:笔套内有螺纹连接的空心螺栓,空心螺栓的内空中放上粉笔。
CN 201220128207 2012-03-30 2012-03-30 粉笔套 Expired - Fee Related CN202573422U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220128207 CN202573422U (zh) 2012-03-30 2012-03-30 粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220128207 CN202573422U (zh) 2012-03-30 2012-03-30 粉笔套

Publications (1)

Publication Number Publication Date
CN202573422U true CN202573422U (zh) 2012-12-05

Family

ID=47242867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220128207 Expired - Fee Related CN202573422U (zh) 2012-03-30 2012-03-30 粉笔套

Country Status (1)

Country Link
CN (1) CN202573422U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106364222A (zh) * 2016-08-29 2017-02-01 彭展忠 粉笔书写用教学无尘系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106364222A (zh) * 2016-08-29 2017-02-01 彭展忠 粉笔书写用教学无尘系统

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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: 20121205

Termination date: 20130330