CN202702968U - 一种旋转式粉笔套 - Google Patents

一种旋转式粉笔套 Download PDF

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Publication number
CN202702968U
CN202702968U CN 201220306349 CN201220306349U CN202702968U CN 202702968 U CN202702968 U CN 202702968U CN 201220306349 CN201220306349 CN 201220306349 CN 201220306349 U CN201220306349 U CN 201220306349U CN 202702968 U CN202702968 U CN 202702968U
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chalk
cylindrical outer
rotary type
outer casing
base
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Expired - Fee Related
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CN 201220306349
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English (en)
Inventor
程延雪
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Individual
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Individual
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Abstract

本实用新型涉及一种旋转式粉笔套,包括与粉笔相配的筒形外壳,筒形外壳的底部设有一带螺纹的底座,底座在外力旋转下可在筒形外壳内上升下降,使粉笔伸出缩进。本实用新型不仅使用方便,而且防止粉尘散落,保护环境。

Description

一种旋转式粉笔套
技术领域
本实用新型涉及一种粉笔套。
背景技术
现有的粉笔多被使用半截就扔了,而且粉末较多,散落后污染环境;使用时用到一半就不好拿,使用起来不方便了。
发明内容
本实用新型的目的就是克服上述不足而提供了一种旋转式粉笔套。
本实用新型是通过以下技术方案实现的:
一种旋转式粉笔套,包括与粉笔相配的筒形外壳,筒形外壳的底部设有一带螺纹的底座,底座在外力旋转下可在筒形外壳内上升下降,使粉笔伸出缩进。
本实用新型不仅使用方便,而且防止粉尘散落,保护环境。
附图说明
图1为本实用新型结构图;
其中,1.筒形外壳,2.底座。
具体实施方式
下面结合实施例对本实用新型做进一步说明。
实施例1
一种旋转式粉笔套,包括与粉笔相配的筒形外壳1,筒形外壳1的底部设有一带螺纹的底座2,底座在外力旋转下可在筒形外壳内上升下降,使粉笔伸出缩进。

Claims (1)

1.一种旋转式粉笔套,其特征是,包括与粉笔相配的筒形外壳,筒形外壳的底部设有一带螺纹的底座,底座在外力旋转下在筒形外壳内上升下降,使粉笔伸出缩进。
CN 201220306349 2012-06-28 2012-06-28 一种旋转式粉笔套 Expired - Fee Related CN202702968U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220306349 CN202702968U (zh) 2012-06-28 2012-06-28 一种旋转式粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220306349 CN202702968U (zh) 2012-06-28 2012-06-28 一种旋转式粉笔套

Publications (1)

Publication Number Publication Date
CN202702968U true CN202702968U (zh) 2013-01-30

Family

ID=47583302

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220306349 Expired - Fee Related CN202702968U (zh) 2012-06-28 2012-06-28 一种旋转式粉笔套

Country Status (1)

Country Link
CN (1) CN202702968U (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: 20130130

Termination date: 20130628