CN2206726Y - 一种粉笔套 - Google Patents

一种粉笔套 Download PDF

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Publication number
CN2206726Y
CN2206726Y CN 94246848 CN94246848U CN2206726Y CN 2206726 Y CN2206726 Y CN 2206726Y CN 94246848 CN94246848 CN 94246848 CN 94246848 U CN94246848 U CN 94246848U CN 2206726 Y CN2206726 Y CN 2206726Y
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utility
model
degree
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Expired - Fee Related
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CN 94246848
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陈巨新
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Abstract

本实用新型属于书写用具技术领域,特别是涉及 一种粉笔套,包括套体,其特征在于套体上设有松紧 爪,套体内设有压簧,套体的前端与旋紧套相连接,其 结构简单,使用方便、卫生,尤其适合教学使用。

Description

本实用新型属于书写用具技术领域,特别是涉及一种粉笔套。
在学校教学、单位黑板报以及出的临时通知等,都习惯于使用粉笔,而人们在使用粉笔时,只能用手指直接捏住写字,使整只手很容易地沾满了粉笔灰;由于手指捏粉笔时,受力不匀,会使粉笔忽然折断、跌落,不便于书写。因此用手直接接触使用粉笔,不仅不卫生,还影响了粉笔的利用率。
本实用新型的目的是这样实现的:包括套体,其特征在于套体上设有松紧爪,套体内装有压簧,套体的前端与旋紧套相连接。使用时,粉笔通过旋紧套固定在套体和松紧爪中,在压簧的作用下,粉笔可随着旋紧套的转动在套体内轴向移动,并调节粉笔的使用程度。
本实用新型具有构造简单、使用卫生、省力等优点,有利于减轻手感疲劳,并提高了粉笔的利用率。
结合附图和实彷例,对本实用新型作进一步描述如下:
图1是本实用新型的结构示意图。
图2是本实用新型旋紧套结构示意图。
参照附图,本实用新型包括套体1、旋紧套2,在套体1的前端设有松紧爪5,套体1内装有压簧4和活动垫3,套体1和旋紧套2通过螺纹连接,松紧爪5能从旋紧套2的套口中伸出,旋紧套2的套口6为梯形孔,其外孔径9小于内孔径8,转动旋紧套2可以使松紧爪5张开或合拢,当松紧爪5张开时,插入粉笔7,粉笔7同时推压活动垫3和压簧4,使压簧4压缩蓄能,这时转动旋紧套2,利用梯形孔收紧松紧爪5,把粉笔7固定控制在套体1和松紧爪5中,通过旋紧套2的转动,可调节粉笔7的受力状况,以便于用粉笔7流利书写,本实用新型既操作方便、卫生,又省力而不浪费粉笔,尤其适合教学使用。

Claims (3)

1、一种粉笔套,包括套体(1),其特征在于套体(1)上设有松紧爪(5),套体(1)内装有压簧(4),套体(1)的前端与旋紧套(2)相连接。
2、根据权利要求1所述的粉笔套,其特征在于所述的旋  紧套(2)的套口(6)为梯形孔,其外孔径(9)小于内孔径(8)。
3、根据权利要求1所述的粉笔套,其特征在于所述的套体(1)内的压簧(4)上设有活动垫(3)。
CN 94246848 1994-12-02 1994-12-02 一种粉笔套 Expired - Fee Related CN2206726Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94246848 CN2206726Y (zh) 1994-12-02 1994-12-02 一种粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94246848 CN2206726Y (zh) 1994-12-02 1994-12-02 一种粉笔套

Publications (1)

Publication Number Publication Date
CN2206726Y true CN2206726Y (zh) 1995-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94246848 Expired - Fee Related CN2206726Y (zh) 1994-12-02 1994-12-02 一种粉笔套

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CN (1) CN2206726Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555606A (zh) * 2012-03-14 2012-07-11 福州市台江区振斌高效电磁聚能科技研究所 粉笔套

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555606A (zh) * 2012-03-14 2012-07-11 福州市台江区振斌高效电磁聚能科技研究所 粉笔套

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