CN2392022Y - 自钻螺钉 - Google Patents

自钻螺钉 Download PDF

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Publication number
CN2392022Y
CN2392022Y CN 99221057 CN99221057U CN2392022Y CN 2392022 Y CN2392022 Y CN 2392022Y CN 99221057 CN99221057 CN 99221057 CN 99221057 U CN99221057 U CN 99221057U CN 2392022 Y CN2392022 Y CN 2392022Y
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CN
China
Prior art keywords
screw
utility
model
screw rod
self
Prior art date
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Expired - Fee Related
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CN 99221057
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English (en)
Inventor
王健
宋明果
姜奎珏
王耀跃
于广锋
卢晓虹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Sanitary Ware Facility Co ltd
Haier Group Corp
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Qingdao Haier Sanitary Ware Facility Co ltd
Haier Group Corp
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Priority to CN 99221057 priority Critical patent/CN2392022Y/zh
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Publication of CN2392022Y publication Critical patent/CN2392022Y/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

一种自钻螺钉,由螺钉头(14)和螺钉杆(1)组成,在螺钉杆的前部有一段无螺纹的杆(11),其截面为呈中心对称的S型,S的两个顶点为切削刃(12),切削刃(12)从螺钉尖(13)一直延伸到螺钉杆的螺纹区,它是由不锈钢或硬度达HRC50以上的钢制成的。本实用新型提供一种能够以较小的力气就可以攻入较硬的材料的螺钉。

Description

自钻螺钉
本实用新型涉及一种螺钉结构的改进。
自攻螺钉一般是由螺钉头和螺钉杆组成的,螺钉杆前端是螺钉尖,从螺钉尖开始就有螺纹,一直伸延到螺钉头,这种螺钉一般用于薄钢板、有色金属、塑料或木材的联接,这种螺钉是靠螺钉尖及其螺纹硬“攻进”薄钢板、有色金属、塑料或木材的。由于这些材料硬度很大,“攻进”就非常困难,要付出很大的力气。
本实用新型的目的就在于提供一种自带钻头的螺钉,以便能够以较小的力气就可以攻入较硬的材料。
本实用新型是以下述技术方案实现的:
自钻螺钉由不锈钢或硬度达HRC50以上的钢制成,由螺钉头和螺钉杆组成,在螺钉杆的前部有一段无螺纹的杆,其截面为呈中心对称的S型,S的两个顶点为切削刃,切削刃一直从螺钉尖延伸到螺钉杆的螺纹区。当将这种结构的螺钉拧进薄钢板、有色金属、塑料或硬木材时,从螺钉尖一直延伸到螺纹杆上的无螺纹区的切削刃就在螺钉前进的方向切削攻入的材料,一边切削,一边攻入,直到将螺钉拧入,实现连接的目的。
本实用新型有以下积极效果:由于本实用新型由螺钉头和螺钉杆组成,在螺钉杆前部有一段无螺纹的杆,这段无螺纹的杆的截面为呈中心对称的S型,S的两个顶点为切削刃,切削刃从螺钉尖一直延伸到螺纹杆的螺纹区。当将这种结构的螺钉拧进薄钢板,有色金属、塑料或硬木材时,螺钉尖一直延伸到螺钉杆上的螺纹区的切削刃就在螺钉前进的方向切削攻入的材料,被切削下来的材料碎屑将沿S型截面的两顶点向内的曲线,即沿两切削刃的向内的凹面,从切削刃的另一侧及螺钉尖后面延伸的槽排出,一边切削,一边攻入,实现以较小的力气就可以将这种螺钉攻入较硬的材料。
下面结合附图对本实用新型的结构作进一步详细的说明:
图1是本实用新型自钻螺钉的结构示意图;
图2是本实用新型自钻螺钉的结构示意图中的A-A向视图;
在图中,1是螺钉杆,11是无螺纹的杆,12是切削刃,13是螺钉尖,14是螺钉头,15是凹面。
自钻螺钉由螺钉头(14)和螺钉杆(1)组成,在螺钉杆(1)的前部有一段无螺纹的杆(11),其截面为呈中心对称的S型,S的两个顶点为切削刃(12)一直延伸到螺钉尖(13)。当将这种结构的螺钉拧入薄钢板,有色金属,塑料或硬木材时,螺钉尖(13)一直延伸到螺钉杆(1)上的螺纹区的切削刃(12)就在螺纹钉前边的方向切削攻入的材料,被切削下来的材料碎屑将沿S型截面的两顶点,即切削刃(12)向内的凹面(15),从切削刃(12)的另一侧及螺钉尖(13)后面延伸的槽排出。

Claims (1)

1、一种自钻螺钉,由螺钉头(14)和螺钉杆(1)组成,其特征在于在螺钉杆的前部有一段无螺纹的杆(11),其截面为呈中心对称的S型,S的两个顶点为切削刃(12),切削刃(12)从螺钉尖(13)一直延伸到螺钉杆的螺纹区。
CN 99221057 1999-06-01 1999-06-01 自钻螺钉 Expired - Fee Related CN2392022Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99221057 CN2392022Y (zh) 1999-06-01 1999-06-01 自钻螺钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99221057 CN2392022Y (zh) 1999-06-01 1999-06-01 自钻螺钉

Publications (1)

Publication Number Publication Date
CN2392022Y true CN2392022Y (zh) 2000-08-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99221057 Expired - Fee Related CN2392022Y (zh) 1999-06-01 1999-06-01 自钻螺钉

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CN (1) CN2392022Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403368A (zh) * 2010-08-24 2013-11-20 伍尔特国际股份公司 固定元件

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403368A (zh) * 2010-08-24 2013-11-20 伍尔特国际股份公司 固定元件

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