CN202011254U - 护手粉笔套 - Google Patents

护手粉笔套 Download PDF

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Publication number
CN202011254U
CN202011254U CN2011201107972U CN201120110797U CN202011254U CN 202011254 U CN202011254 U CN 202011254U CN 2011201107972 U CN2011201107972 U CN 2011201107972U CN 201120110797 U CN201120110797 U CN 201120110797U CN 202011254 U CN202011254 U CN 202011254U
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sleeve pipe
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董彦辰
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Abstract

一种护手粉笔套,套管的顶端表面开设螺纹通孔,固定螺栓通过通孔与套管相连,通孔的下方连接挡板,挡板的下方设有对称套环。本实用新型具有方便实用、应用广泛、操作便捷等优点。

Description

护手粉笔套
技术领域  本实用新型涉及一种教学用具。
背景技术  众所周知,教师在上课时粉笔是经常使用的用具,虽然现在已经出现了多媒体等方式的教学,但是板书仍然是教师上课广泛使用的方式,而教师在利用粉笔写板书时,手指直接接触粉笔,粉笔不仅容易弄脏手指,而且对手指皮肤造成损害。虽然现在已经出现了许多例如粉笔套等保护手指的器具,但是大多存在结构复杂、操作繁琐、制作成本高等缺点,另外,现有的保护手指的装置在功能上不能满足教师的使用需求。
发明内容  本实用新型的目的在于提供一种结构简单、方便实用、应用广泛、操作便捷、造价低廉的护手粉笔套。
本实用新型包括套管、固定螺栓、挡板以及套环,其中套管为上下开口的管体,套管的顶端表面开设螺纹通孔,固定螺栓通过通孔与套管相连,通孔的下方连接挡板,所述挡板为上下开口的截锥形筒板,上述挡板的下方设有对称套环,所述套环与套管垂直连接。
本实用新型在使用时,将粉笔插入套管内部,利用固定螺栓紧固,教师将手指插入挡板下方的套环内进行书写,书写的同时,粉笔灰尘会落入挡板内部。
使用者的手指不会直接接触粉笔,避免弄脏手指和损害皮肤,书写时,手指置于套环内,则避免发生手指滑出;书写时粉笔的灰尘可直接落入挡板内部,书写完毕后统一清理粉笔灰尘。
本实用新型与现有技术相比具有如下优点:结构简单、方便实用、应用广泛、操作便捷、造价低廉。
附图说明  图1为本实用新型的立体示意简图。
具体实施方式  在图1所示的护手粉笔套的立体示意简图中,套管1为上下开口的管体,套管的顶端表面开设螺纹通孔2,固定螺栓3通过通孔与套管相连,通孔的下方连接挡板4,挡板为上下开口的截锥形筒板,挡板的下方设有对称套环5,套环与套管垂直连接。

Claims (1)

1.一种护手粉笔套,其特征是:套管为上下开口的管体,套管的顶端表面开设螺纹通孔,固定螺栓通过通孔与套管相连,通孔的下方连接挡板,挡板为上下开口的截锥形筒板,挡板的下方设有对称套环,套环与套管垂直连接。
CN2011201107972U 2011-04-15 2011-04-15 护手粉笔套 Expired - Fee Related CN202011254U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201107972U CN202011254U (zh) 2011-04-15 2011-04-15 护手粉笔套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201107972U CN202011254U (zh) 2011-04-15 2011-04-15 护手粉笔套

Publications (1)

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CN202011254U true CN202011254U (zh) 2011-10-19

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CN2011201107972U Expired - Fee Related CN202011254U (zh) 2011-04-15 2011-04-15 护手粉笔套

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CN (1) CN202011254U (zh)

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C17 Cessation of patent right
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Granted publication date: 20111019

Termination date: 20120415