CN202345111U - 粉笔、铅笔扩充器 - Google Patents

粉笔、铅笔扩充器 Download PDF

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Publication number
CN202345111U
CN202345111U CN2011204261483U CN201120426148U CN202345111U CN 202345111 U CN202345111 U CN 202345111U CN 2011204261483 U CN2011204261483 U CN 2011204261483U CN 201120426148 U CN201120426148 U CN 201120426148U CN 202345111 U CN202345111 U CN 202345111U
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China
Prior art keywords
sleeve
expander
push rod
pencil
chalk
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Expired - Fee Related
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CN2011204261483U
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English (en)
Inventor
成帅
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Abstract

本实用新型涉及一种粉笔、铅笔扩充器,包括套筒,套筒内设有推杆,推杆的端部设有后座,推杆与套筒螺纹连接,套筒上设有内螺纹,推杆设有外螺纹,由套筒和推杆构成,结构简单;将短小的粉笔或铅笔放入套筒内,用手旋转后座使短小的粉笔或铅笔旋出,就可以继续使用,使用方便,可以将丢弃的粉笔或铅笔重新利用,节约大量资源。

Description

粉笔、铅笔扩充器
技术领域
本实用新型涉及一种生活用具,具体地说,涉及一种粉笔、铅笔扩充器,属于日常生活技术领域。 
背景技术
在学习与教学中,粉笔和铅笔是常用品,当粉笔和铅笔磨损至一定程度或书写用力时将之折断,由于短小部分无法用手握紧而无法继续使用,人们通常将之丢弃,这样就会浪费大量的资源。 
实用新型内容
本实用新型要解决的问题是针对以上不足,提供一种结构简单、使用方便的粉笔、铅笔扩充器,可以将丢弃的粉笔或铅笔重新利用,节约大量资源。 
为解决以上问题,本实用新型采用的技术方案如下:粉笔、铅笔扩充器,其特征在于:所述粉笔、铅笔扩充器包括套筒,套筒内设有推杆,推杆与套筒螺纹连接。 
作为上述技术方案的进一步改进: 
所述套筒上设有内螺纹,推杆设有外螺纹。 
所述推杆的端部设有后座。 
所述套筒上设有内螺纹,推杆设有外螺纹。 
本实用新型采用以上技术方案,与现有技术相比,具有以下优点:由套筒和推杆构成,结构简单;将短小的粉笔或铅笔放入套筒内,用手旋转后座使短小的粉笔或铅笔旋出,就可以继续使用,使用方便,可以将丢弃的粉笔或铅笔重新利用,节约大量资源。 
下面结合附图和实施例对本实用新型进一步说明。 
附图说明
附图1是本实用新型实施例中粉笔、铅笔扩充器的结构示意图; 
图中, 
1-套筒,2-推杆,3-后座。 
具体实施方式
实施例,如图1所示,粉笔、铅笔扩充器,包括套筒1,套筒1内设有推杆2,推杆2的端部设有后座3,推杆2与套筒1螺纹连接,套筒1上设有内螺纹,推杆2设有外螺纹。 
使用时,将短小的粉笔或铅笔放入套筒1内,用手旋转后座3使短小的粉笔或铅笔旋出,就可以继续使用。 

Claims (3)

1.粉笔、铅笔扩充器,其特征在于:所述粉笔、铅笔扩充器包括套筒(1),套筒(1)内设有推杆(2),推杆(2)与套筒(1)螺纹连接。
2.如权利要求1所述的粉笔、铅笔扩充器,其特征在于:所述套筒(1)上设有内螺纹,推杆(2)设有外螺纹。
3.如权利要求1或2所述的粉笔、铅笔扩充器,其特征在于:所述推杆(2)的端部设有后座(3)。 
CN2011204261483U 2011-11-01 2011-11-01 粉笔、铅笔扩充器 Expired - Fee Related CN202345111U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204261483U CN202345111U (zh) 2011-11-01 2011-11-01 粉笔、铅笔扩充器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204261483U CN202345111U (zh) 2011-11-01 2011-11-01 粉笔、铅笔扩充器

Publications (1)

Publication Number Publication Date
CN202345111U true CN202345111U (zh) 2012-07-25

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CN2011204261483U Expired - Fee Related CN202345111U (zh) 2011-11-01 2011-11-01 粉笔、铅笔扩充器

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496476A (zh) * 2013-08-28 2014-01-08 苏州国衡机电有限公司 一种热合封口机的滚轴压力调节装置
CN106427299A (zh) * 2016-09-12 2017-02-22 芜湖能盟信息技术有限公司 一种粉笔夹持套

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103496476A (zh) * 2013-08-28 2014-01-08 苏州国衡机电有限公司 一种热合封口机的滚轴压力调节装置
CN103496476B (zh) * 2013-08-28 2016-08-31 苏州国衡机电有限公司 一种热合封口机的滚轴压力调节装置
CN106427299A (zh) * 2016-09-12 2017-02-22 芜湖能盟信息技术有限公司 一种粉笔夹持套

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C17 Cessation of patent right
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Granted publication date: 20120725

Termination date: 20121101