CN201794889U - 平垫肩内五角全螺纹螺丝 - Google Patents

平垫肩内五角全螺纹螺丝 Download PDF

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Publication number
CN201794889U
CN201794889U CN2010202902712U CN201020290271U CN201794889U CN 201794889 U CN201794889 U CN 201794889U CN 2010202902712 U CN2010202902712 U CN 2010202902712U CN 201020290271 U CN201020290271 U CN 201020290271U CN 201794889 U CN201794889 U CN 201794889U
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China
Prior art keywords
spiral shell
screw
shell head
screw rod
pentagonal
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Expired - Fee Related
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CN2010202902712U
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English (en)
Inventor
陆颂荫
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Ningbo Donggang Fastener Manufacturing Co Ltd
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Ningbo Donggang Fastener Manufacturing Co Ltd
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Abstract

本实用新型公开了一种平垫肩内五角全螺纹螺丝,它包括螺头(1)和螺杆(2),所述的螺头(1)为平垫肩螺头(1),所述的螺头(1)为圆台形,所述的螺头(1)上设有内五角沉孔(3),所述的螺头(1)的侧面上设有若干条呈放射状的防松齿,所述的螺杆(2)全为螺纹段,所述的螺杆(2)沿轴线贯通有通孔(4),所述的通孔(4)与沉孔(3)连通。该平垫肩内五角全螺纹螺丝在旋紧过程中不打滑且节省材料。

Description

平垫肩内五角全螺纹螺丝
技术领域
本实用新型涉及一种紧固件,具体讲是一种平垫肩内五角全螺纹螺丝。
背景技术
现有技术的螺丝包括螺头和螺杆,所述的螺头上设有横截面为六角形的沉孔,即内六角沉孔,所述的螺杆为实心螺杆。
现有技术的螺丝存在以下缺陷:首先,由于螺头上设的是内六角沉孔,在实际使用中,用六角扳手旋紧该螺丝时,往往容易打滑;其次,由于螺杆为实心的,比较费材料,造价比较高。
实用新型内容
本实用新型要解决的技术问题是,提供一种在旋紧该螺丝的过程中不打滑且节省材料的平垫肩内五角全螺纹螺丝。
本实用新型的技术解决方案是,提供一种具有以下结构的平垫肩内五角全螺纹螺丝,它包括螺头和螺杆,所述的螺头为平垫肩螺头,所述的螺头为圆台形,所述的螺头上设有内五角沉孔,所述的螺头的侧面上设有若干条呈放射状的防松齿,所述的螺杆全为螺纹段,所述的螺杆沿轴线贯通有通孔,所述的通孔与沉孔连通。
采用以上结构后,本实用新型平垫肩内五角全螺纹螺丝与现有技术相比,具有以下优点:
由于该螺头上的沉孔是内五角的,根据常识可知,多边形的棱边越多越容易打滑,如多边形中棱边无穷多的极限多边形即圆形最容易打滑,故内五角沉孔的螺丝比内六角沉孔螺丝更方便旋紧、更不易打滑;而且,由于螺杆沿轴线贯通有通孔,显然,空心螺杆比实心螺杆更省材料,造价更低。
附图说明
图1是本实用新型平垫肩内五角全螺纹螺丝的正视结构示意图。
图2是图1的左视图。
图3是图1的右视图。
图4是本实用新型平垫肩内五角全螺纹螺丝的剖视结构示意图。
图中所示
1、螺头,2、螺杆,3、沉孔,4、通孔,5、防松齿。
具体实施方式
下面结合附图和具体实施例对本实用新型作进一步说明。
如图1、图2、图3、图4所示,本实用新型平垫肩内五角全螺纹螺丝,它包括螺头1和螺杆2。所述的螺头1为平垫肩螺头1,所述的螺头1为圆台形,所述的螺头1上设有内五角沉孔3,所述的螺头1的侧面上设有若干条呈放射状的防松齿5,所述的螺杆2全为螺纹段,所述的螺杆2沿轴线贯通有通孔4,所述的通孔4与沉孔3连通。

Claims (1)

1.一种平垫肩内五角全螺纹螺丝,它包括螺头(1)和螺杆(2),其特征在于:所述的螺头(1)为平垫肩螺头(1),所述的螺头(1)为圆台形,所述的螺头(1)上设有内五角沉孔(3),所述的螺头(1)的侧面上设有若干条呈放射状的防松齿(5),所述的螺杆(2)全为螺纹段,所述的螺杆(2)沿轴线贯通有通孔(4),所述的通孔(4)与沉孔(3)连通。
CN2010202902712U 2010-08-09 2010-08-09 平垫肩内五角全螺纹螺丝 Expired - Fee Related CN201794889U (zh)

Priority Applications (1)

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CN2010202902712U CN201794889U (zh) 2010-08-09 2010-08-09 平垫肩内五角全螺纹螺丝

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CN2010202902712U CN201794889U (zh) 2010-08-09 2010-08-09 平垫肩内五角全螺纹螺丝

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CN201794889U true CN201794889U (zh) 2011-04-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113357244A (zh) * 2021-07-10 2021-09-07 北京富华鑫标准件有限公司 一种分离式螺栓

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113357244A (zh) * 2021-07-10 2021-09-07 北京富华鑫标准件有限公司 一种分离式螺栓

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Granted publication date: 20110413

Termination date: 20130809