CN202573422U - 粉笔套 - Google Patents
粉笔套 Download PDFInfo
- Publication number
- CN202573422U CN202573422U CN 201220128207 CN201220128207U CN202573422U CN 202573422 U CN202573422 U CN 202573422U CN 201220128207 CN201220128207 CN 201220128207 CN 201220128207 U CN201220128207 U CN 201220128207U CN 202573422 U CN202573422 U CN 202573422U
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- 239000000428 dust Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound 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[Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- -1 and frangible Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Abstract
本实用新型公开了一种粉笔套，包括笔套，笔套内有螺纹连接的空心螺栓，空心螺栓的内空中放上粉笔。本实用新型的优点是：老师用粉笔书写时，手拿笔套，可以防止手上沾上粉笔灰，粉笔头也可以利用起来，减少了浪费。
Description
粉笔套
技术领域
[0001] 本实用新型涉及教学用品技术领域，具体地说是一种粉笔套。
背景技术
[0002] 普通粉笔多以熟石灰和硫酸钙为主要原料制作，易折断、粉尘多，书写时，手直接与粉笔接触，粉笔灰容易沾在手上，不干净，而且粉笔用小后就不方便书写，只有扔掉，造成浪费。
发明内容
[0003] 本实用新型的目的是设计一种在使用粉笔时不会弄脏手，且粉笔头也可使用的粉 笔套。
[0004] 本实用新型粉笔套，包括：笔套，笔套内有螺纹连接的空心螺栓，空心螺栓的内空中放上粉笔，随着螺纹的推进，粉笔不断地伸出，便于书写。
[0005] 粉笔套是这样实现的：将粉笔一头插入空心螺栓，钮动空心螺栓，将粉笔大部分旋入笔套中，手握笔套即可书写。
[0006] 本实用新型粉笔套的优点是：老师用粉笔书写时，手拿笔套，可以防止手上沾上粉笔灰，粉笔头也可以利用起来，减少了浪费。
附图说明
[0007] 图I是本实用新型的结构示意图。
具体实施方式
[0008] 下面结合附图对本实用新型做进一步描述。
[0009] 如图I所示，本实用新型的粉笔套包括笔套1，笔套I内有螺纹连接的空心螺栓2，空心螺栓2的内空中放上粉笔3。
[0010] 使用时，将粉笔3 —头插入空心螺栓2，钮动空心螺栓2，将粉笔3大部分旋入笔套I中，手握笔套I即可书写。随着螺纹的推进，粉笔不断地伸出。
Claims (1)
1. 一种粉笔套，包括：笔套，其特征在于：笔套内有螺纹连接的空心螺栓，空心螺栓的内空中放上粉笔。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128207 CN202573422U (zh) | 2012-03-30 | 2012-03-30 | 粉笔套 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220128207 CN202573422U (zh) | 2012-03-30 | 2012-03-30 | 粉笔套 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202573422U true CN202573422U (zh) | 2012-12-05 |
Family
ID=47242867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220128207 Expired - Fee Related CN202573422U (zh) | 2012-03-30 | 2012-03-30 | 粉笔套 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202573422U (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364222A (zh) * | 2016-08-29 | 2017-02-01 | 彭展忠 | 粉笔书写用教学无尘系统 |
-
2012
- 2012-03-30 CN CN 201220128207 patent/CN202573422U/zh not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364222A (zh) * | 2016-08-29 | 2017-02-01 | 彭展忠 | 粉笔书写用教学无尘系统 |
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