CN2850935Y - 自动粉笔 - Google Patents

自动粉笔 Download PDF

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Publication number
CN2850935Y
CN2850935Y CN 200520098967 CN200520098967U CN2850935Y CN 2850935 Y CN2850935 Y CN 2850935Y CN 200520098967 CN200520098967 CN 200520098967 CN 200520098967 U CN200520098967 U CN 200520098967U CN 2850935 Y CN2850935 Y CN 2850935Y
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China
Prior art keywords
chalk
utility
model
automatic
automatic chalk
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Expired - Fee Related
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CN 200520098967
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English (en)
Inventor
孙利民
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Individual
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Individual
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Priority to CN 200520098967 priority Critical patent/CN2850935Y/zh
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Abstract

一种自动粉笔,笔杆的下端是旋钮,上端装有粉笔,使用时,可以像自动铅笔一样,通过旋钮调整粉笔头,本实用新型可以避免用手直接接触粉笔的现象,有利人体健康。

Description

自动粉笔
所属技术领域
本实用新型涉及一种教室内所使用的粉笔,具体的说是一种自动粉笔。
背景技术
目前,学校所使用的粉笔都是光杆的,老师在讲课使用时,要用手拿光杆粉笔在黑板上写字,很容易对手和人体产生污染危害。
发明内容
本实用新型提供一种自动粉笔,可以像自动铅笔一样的使用。
本实用新型所采用的技术方案是:笔杆的内部装有自动铅笔一样的放大后内芯,可以将粉笔卡住,其特征在于:笔杆的尾端设有旋钮,前端装有粉笔。
本实用新型的有益效果是:可以像自动铅笔一样的使用粉笔,避免了用手直接接触粉笔的现象。
附图说明
附图是本实用新型结构示意图。
具体实施方式
图中:笔杆1的下端旋钮2,上端粉笔3。

Claims (1)

1、一种自动粉笔,其特征是:笔杆(1)的下端是旋钮(2),上端装有粉笔(3)。
CN 200520098967 2005-11-23 2005-11-23 自动粉笔 Expired - Fee Related CN2850935Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520098967 CN2850935Y (zh) 2005-11-23 2005-11-23 自动粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520098967 CN2850935Y (zh) 2005-11-23 2005-11-23 自动粉笔

Publications (1)

Publication Number Publication Date
CN2850935Y true CN2850935Y (zh) 2006-12-27

Family

ID=37584900

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520098967 Expired - Fee Related CN2850935Y (zh) 2005-11-23 2005-11-23 自动粉笔

Country Status (1)

Country Link
CN (1) CN2850935Y (zh)

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C19 Lapse of patent right due to non-payment of the annual fee
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