CN2109905U - 防滑式新型电钻 - Google Patents

防滑式新型电钻 Download PDF

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Publication number
CN2109905U
CN2109905U CN 90203364 CN90203364U CN2109905U CN 2109905 U CN2109905 U CN 2109905U CN 90203364 CN90203364 CN 90203364 CN 90203364 U CN90203364 U CN 90203364U CN 2109905 U CN2109905 U CN 2109905U
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electric drill
utility
model
drill head
guide groove
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CN 90203364
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English (en)
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杨向东
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Individual
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Individual
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Priority to CN 90203364 priority Critical patent/CN2109905U/zh
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Abstract

一种能够防止打滑的电钻头,它是在已有材料的 基础上,改进尾部为相距120度的三个长方形导槽 和三个固定横埂。在工作中起到防滑的目的,适用于 对坚硬物质打孔。

Description

本实用新型涉及一种良好的电动工具装置,尤其是能防止工作中横向和垂直打滑的电钻头。
目前,公知的电钻头构造是由螺旋刀削面和圆柱形尾部两部分组成,将钻头尾部圆柱体与电钻相联接后通电工作。但是,很多坚硬材料使电钻头相对电钻出现打滑现象。一般电钻头很难实现工作的需要,给工作进程造成困难,影响生产效率。
本实用新型的目的是提供一种电钻头,操作起来不打滑。
本实用新型的目的是这样实现的:在电钻头尾部圆柱体上,设置三个相距120度的长方形导槽,导槽尺寸根据钻头大小而定,导槽的顶部分别形成三个横埂。当电钻头与电钻联接,电钻的三个夹紧牙分别夹紧钻头尾部三个长方形导槽,并使夹紧牙顶住导槽顶部横埂。工作时,遇到材料坚硬,电钻头既不相对电钻横向打滑也不会垂直向后打滑。
由于采用上述方案,可以方便地为工作生产服务,材料和当前钻头材料一样,结构简单。
下面结合附图和实施例对本实用新型进一步说明。
图1是本实用新型的尾部剖面图。
图2是电钻头第一个实施例的纵面构造图。
图3是电钻头第二个实施例的纵面构造图。
图中1、螺旋刀削面。2、尾部圆柱体。3、长方形导槽。4、横埂。
在图2所示实施例中,钻头与电钻联接时,夹紧牙夹住钻头尾部圆柱体面(2)。
在图3的另一个实施例中,钻头与电钻联接时,电钻三个夹紧牙分别夹紧钻头的三个长方形导槽(3),同时夹紧牙顶住横埂(4),导槽(3)和横埂(4)的尺寸根据钻头尺寸而定。

Claims (2)

1、一种电钻头,由螺旋刀削面和尾部柱体组成,其特征是:柱体尾部有三个相距120度的长方形导槽和三个固定横埂。
2、根据权利要求1  所述电钻头,其特征是:横埂设置于导槽顶部,三个长方形导槽的尺寸一样。
CN 90203364 1990-03-15 1990-03-15 防滑式新型电钻 Granted CN2109905U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90203364 CN2109905U (zh) 1990-03-15 1990-03-15 防滑式新型电钻

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90203364 CN2109905U (zh) 1990-03-15 1990-03-15 防滑式新型电钻

Publications (1)

Publication Number Publication Date
CN2109905U true CN2109905U (zh) 1992-07-15

Family

ID=4884572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 90203364 Granted CN2109905U (zh) 1990-03-15 1990-03-15 防滑式新型电钻

Country Status (1)

Country Link
CN (1) CN2109905U (zh)

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