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CN201077251Y - 简易粉笔套 - Google Patents

简易粉笔套 Download PDF

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Publication number
CN201077251Y
CN201077251Y CNU2007200860395U CN200720086039U CN201077251Y CN 201077251 Y CN201077251 Y CN 201077251Y CN U2007200860395 U CNU2007200860395 U CN U2007200860395U CN 200720086039 U CN200720086039 U CN 200720086039U CN 201077251 Y CN201077251 Y CN 201077251Y
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China
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chalk
utility
model
spring
fastening cap
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Expired - Fee Related
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CNU2007200860395U
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English (en)
Inventor
刘菁菁
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Individual
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Individual
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Priority to CNU2007200860395U priority Critical patent/CN201077251Y/zh
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Expired - Fee Related legal-status Critical Current

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Abstract

本实用新型提供一种简易粉笔套,其尾端封闭口的粉笔套管内装有弹簧,前端设有开口的螺旋管口,其外旋装有紧固旋帽,使用时将粉笔从螺旋管口装入,通过紧固旋帽旋紧固定即可使用,向外调整粉笔时,松开紧固旋帽,其内设的弹簧可自行向外顶出,本实用新型可以避免用手直接接触粉笔,减少了对人体的污染伤害。

Description

简易粉笔套
所属技术领域
本实用新型涉及一种教学使用的教具,具体的说是一种简易粉笔套。
背景技术
现在学校教师上课使用粉笔时,要用手直接抓住粉笔在黑板上写字,由于长期从事教学和长时间接触粉笔,会对人体造成污染伤害。
发明内容
本实用新型提供一种简易粉笔套,可将粉笔装入粉笔套内使用,避免了人体直接接触粉笔的现象。
本实用新型包括粉笔套管和内设的弹簧以及紧固旋帽及其可卡住的粉笔,所采用的技术方案是:具尾端封闭的粉笔套管内装有一个可用于顶住粉笔的弹簧,前端的开口螺旋管口其外旋装有一个紧固旋帽。
本实用新型的有益效果是:将粉笔装入粉笔套内,通过紧固旋帽固定后使用,避免了人手直接接触粉笔的问题,减少了对人体的污染伤害。
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。
附图为本实用新型结构示意图。
具体实施方式
图中:在尾端封闭的粉笔套管1内装入用于顶住粉笔5的弹簧2,前端的开口螺旋管3外旋装紧固旋帽4。
在向外调整粉笔5时,松开紧固旋帽4,其内设的弹簧2可以将粉笔5向外顶出到所需长度时,再旋紧紧固旋帽4即可。

Claims (1)

1.一种简易粉笔套,包括粉笔套管(1)和内设的弹簧(2)以及紧固旋帽(4)及其可卡住的粉笔(5),其特征是:尾端封闭的粉笔套管(1)内装有用于顶住粉笔(5)的弹簧(2),前端是开口的螺旋管口(3)其外旋装有紧固旋帽(4)。
CNU2007200860395U 2007-07-20 2007-07-20 简易粉笔套 Expired - Fee Related CN201077251Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200860395U CN201077251Y (zh) 2007-07-20 2007-07-20 简易粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200860395U CN201077251Y (zh) 2007-07-20 2007-07-20 简易粉笔套

Publications (1)

Publication Number Publication Date
CN201077251Y true CN201077251Y (zh) 2008-06-25

Family

ID=39569306

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200860395U Expired - Fee Related CN201077251Y (zh) 2007-07-20 2007-07-20 简易粉笔套

Country Status (1)

Country Link
CN (1) CN201077251Y (zh)

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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: 20080625