CN202742873U - 一种自动粉笔 - Google Patents

一种自动粉笔 Download PDF

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Publication number
CN202742873U
CN202742873U CN 201220298781 CN201220298781U CN202742873U CN 202742873 U CN202742873 U CN 202742873U CN 201220298781 CN201220298781 CN 201220298781 CN 201220298781 U CN201220298781 U CN 201220298781U CN 202742873 U CN202742873 U CN 202742873U
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CN 201220298781
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English (en)
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苏天赐
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Abstract

本实用新型一种自动粉笔,涉及一种学校教学用具。主结构由外壳、弹簧、粉笔、开关弹簧、手动开关组成,其特征是:外壳、弹簧、粉笔通过嵌套组合,开关弹簧、手动开关通过紧固件和转动轴与外壳组合而成。本实用新型克服了现有的粉笔直接用手握着使用,具有让手沾满粉笔灰,损伤皮肤,甚至会弄脏衣服,且使用过程中利用率不高,还剩下很长一段无法利用的缺点。

Description

一种自动粉笔
一、技术领域:
一种自动粉笔涉及一种学校教学用具。
二、背景技术:
现有的粉笔直接用手握着使用,具有让手沾满粉笔灰,损伤皮肤,甚至会弄脏衣服,且使用过程中利用率不高,还剩下很长一段无法利用的缺点。本实用新型克服了上述缺点。
三、发明内容:
所要解决的技术问题:克服现有的粉笔直接用手握着使用,具有让手沾满粉笔灰,损伤皮肤,甚至会弄脏衣服,且使用过程中利用率不高,还剩下很长一段无法利用的缺点。 
技术方案:主结构由外壳、弹簧、粉笔、开关弹簧、手动开关组成,其特征是:外壳、弹簧、粉笔通过嵌套组合,开关弹簧、手动开关通过紧固件和转动轴与外壳组合而成。 
 有益效果:本实用新型克服了现有的粉笔直接用手握着使用,具有让手沾满粉笔灰,损伤皮肤,甚至会弄脏衣服,且使用过程中利用率不高,还剩下很长一段无法利用的缺点。
四、附图说明: 
图1 是本实用新型一种自动粉笔主结构示意图
图1中: 弹簧1   外壳2  开关弹簧3   转动轴4  粉笔5   手动开关6
五、具体实施方式:
1、参照附图1加工外壳和粉笔。
2、参照附图1将外壳、弹簧、粉笔通过嵌套组合,开关弹簧、手动开关通过紧固件和转动轴与外壳组合在一起便制作成本实用新型。

Claims (1)

1.一种自动粉笔,主结构由外壳、弹簧、粉笔、开关弹簧、手动开关组成,其特征是:外壳、弹簧、粉笔通过嵌套组合,开关弹簧、手动开关通过紧固件和转动轴与外壳组合而成。
CN 201220298781 2012-06-25 2012-06-25 一种自动粉笔 Expired - Fee Related CN202742873U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220298781 CN202742873U (zh) 2012-06-25 2012-06-25 一种自动粉笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220298781 CN202742873U (zh) 2012-06-25 2012-06-25 一种自动粉笔

Publications (1)

Publication Number Publication Date
CN202742873U true CN202742873U (zh) 2013-02-20

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Family Applications (1)

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CN 201220298781 Expired - Fee Related CN202742873U (zh) 2012-06-25 2012-06-25 一种自动粉笔

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CN (1) CN202742873U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106626885A (zh) * 2017-02-27 2017-05-10 王雪芹 粉笔笔管

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106626885A (zh) * 2017-02-27 2017-05-10 王雪芹 粉笔笔管

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Granted publication date: 20130220

Termination date: 20130625