CN2327830Y - 一种螺钉 - Google Patents

一种螺钉 Download PDF

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Publication number
CN2327830Y
CN2327830Y CN 98233795 CN98233795U CN2327830Y CN 2327830 Y CN2327830 Y CN 2327830Y CN 98233795 CN98233795 CN 98233795 CN 98233795 U CN98233795 U CN 98233795U CN 2327830 Y CN2327830 Y CN 2327830Y
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China
Prior art keywords
screw
screw bolt
groove
straight groove
driver
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Expired - Fee Related
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CN 98233795
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English (en)
Inventor
李运文
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Individual
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Individual
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Priority to CN 98233795 priority Critical patent/CN2327830Y/zh
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Publication of CN2327830Y publication Critical patent/CN2327830Y/zh
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Abstract

本实用新型公开了一种螺钉,螺钉头上开有一字槽,一字槽两边的突起部分在旋松螺钉方向上有旋转斜面,旋转斜面的一边在槽底,一边在槽顶,使螺丝刀只能对螺钉在上紧方向施力。这种螺钉在上紧后不可拆卸,可应用于自行车标志牌、车牌的安装或其他需要防拆卸的场合。

Description

一种螺钉
本实用新型涉及一种螺钉,尤其是一种螺钉头上开有一字槽的螺钉。
现有的螺钉都可以用工具安装或拆卸,而铆钉在安装后不可拆卸,但铆钉的安装需专用工具而且铆接的强度较小,一般只用于薄板件的连接。在一些需要大的连接强度且要求连接件不可拆卸的场合中,现有的螺钉或铆钉就都不适用了。
本实用新型的目的是提供一种不可拆卸的螺钉。
本实用新型的主要技术方案是:螺钉的螺钉头上开有一字槽,一字槽两边的突起部分在旋松螺钉方向上有旋转斜面,旋转斜面的一边在槽底,一边在槽顶,使螺丝刀只能对螺钉在上紧方向施力。
本实用新型的螺钉用螺丝刀就可以安装,在螺钉头的旋松方向上有旋转斜面使螺丝刀在旋松螺钉的方向上无法施力从而达到不可拆卸的目的。这种螺钉可应用在自行车防盗标识牌、车牌等场合,在使用中使螺钉头部、尾部或与螺钉配合的螺母不突出被连接物表面外,用其它工具也不能将螺钉拆下。
图1是本实用新型的一个实施例的主视图;
图2是图1所示螺钉的左视图;
图3是图1的示螺钉俯视图。
如图1、2、3所示,在螺钉的螺钉头1上开有一字槽2,一字槽2两边的突起部分在旋松螺钉方向上旋转斜面5,旋转斜面5的一边在槽底3,另一边在槽顶4,使螺丝刀只能对螺钉在上紧方向施力。

Claims (1)

1、一种螺钉,在螺钉头(1)上开有一字槽(2),其特征在于:一字槽(2)两边的突起部分在旋松螺钉方向上有旋转斜面(5),旋转斜面(5)的一边在槽底(3),另一边在槽顶(4),使螺丝刀只能对螺钉在上紧方向施力。
CN 98233795 1998-03-13 1998-03-13 一种螺钉 Expired - Fee Related CN2327830Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98233795 CN2327830Y (zh) 1998-03-13 1998-03-13 一种螺钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98233795 CN2327830Y (zh) 1998-03-13 1998-03-13 一种螺钉

Publications (1)

Publication Number Publication Date
CN2327830Y true CN2327830Y (zh) 1999-07-07

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ID=33982455

Family Applications (1)

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CN 98233795 Expired - Fee Related CN2327830Y (zh) 1998-03-13 1998-03-13 一种螺钉

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CN (1) CN2327830Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066776A (zh) * 2008-06-24 2011-05-18 株式会社利富高 夹子
CN102141077A (zh) * 2011-05-15 2011-08-03 西安科技大学 一种防拆螺钉

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066776A (zh) * 2008-06-24 2011-05-18 株式会社利富高 夹子
US8419330B2 (en) 2008-06-24 2013-04-16 Nifco Inc. Clip
CN102141077A (zh) * 2011-05-15 2011-08-03 西安科技大学 一种防拆螺钉

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C19 Lapse of patent right due to non-payment of the annual fee
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