CN203496495U - 卫生粉笔套 - Google Patents

卫生粉笔套 Download PDF

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Publication number
CN203496495U
CN203496495U CN201320299814.0U CN201320299814U CN203496495U CN 203496495 U CN203496495 U CN 203496495U CN 201320299814 U CN201320299814 U CN 201320299814U CN 203496495 U CN203496495 U CN 203496495U
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chalk
sleeve
chalk sleeve
hygeian
screw thread
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CN201320299814.0U
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姜曈
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Individual
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Abstract

一种教师用卫生粉笔套,尤其是能保持手部卫生,方便教师写字,便于携带,由粉笔内套、粉笔外套构成,粉笔内套外壁后段有2cm的螺纹,粉笔外套内层壁刻有与之相对应的螺纹,粉笔内套可装有两只粉笔,当内外笔套对应旋转时,可以将粉笔缓缓推出,隔绝手指与粉笔,不污染手指。

Description

卫生粉笔套
所属技术领域
本实用新型涉及一种教师用卫生粉笔套,尤其是能保持手部卫生,方便教师写字,便于携带。
背景技术
目前,公知的教师板书用粉笔,直接用手拿,易污染手指。
发明内容
为了克服教师用粉笔书写时的污染的问题,本实用新型提供一种卫生粉笔套,该卫生粉笔套能防止粉笔污染手指。
本实用新型解决其技术问题所采用的技术方案是:由粉笔内套、粉笔外套构成,粉笔内套外壁后段有2cm的螺纹,粉笔外套内层壁刻有与之相对应的螺纹,粉笔内套可装有两只粉笔,当内外笔套对应旋转时,可以将粉笔缓缓推出,隔绝手指与粉笔,不污染手指。
本实用新型的有益效果是,使用卫生粉笔套在进行黑板板书时,对手无污染。
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是本实用新型的透视图。
图中1.粉笔外套,2.粉笔内套,3.粉笔内套螺纹,4.粉笔外套螺纹。
具体实施方式
在图1中,本实用新型由粉笔外套(1)、粉笔内套(2)、粉笔内套螺纹(3)、粉笔外套螺纹(4)组成,塑料制成的管型粉笔外套(1)的内壁刻有螺纹(4),塑料制成的管型粉笔内套后段外侧刻有2cm长的螺纹(3),粉笔外套(1)、粉笔内套(2)对应旋转时,可以将粉笔缓缓推出。

Claims (1)

1.一种卫生粉笔套,由由粉笔内套、粉笔外套构成,其特征是:粉笔内套外壁后段有2cm的螺纹,粉笔外套内层壁刻有与之相对应的螺纹,粉笔内套可装有两只粉笔,当内外笔套对应旋转时,可以将粉笔缓缓推出,隔绝手指与粉笔。
CN201320299814.0U 2013-05-21 2013-05-21 卫生粉笔套 Expired - Fee Related CN203496495U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320299814.0U CN203496495U (zh) 2013-05-21 2013-05-21 卫生粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320299814.0U CN203496495U (zh) 2013-05-21 2013-05-21 卫生粉笔套

Publications (1)

Publication Number Publication Date
CN203496495U true CN203496495U (zh) 2014-03-26

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Family Applications (1)

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CN201320299814.0U Expired - Fee Related CN203496495U (zh) 2013-05-21 2013-05-21 卫生粉笔套

Country Status (1)

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CN (1) CN203496495U (zh)

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