CN1311401A - 双面膨胀螺钉 - Google Patents

双面膨胀螺钉 Download PDF

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Publication number
CN1311401A
CN1311401A CN 00103919 CN00103919A CN1311401A CN 1311401 A CN1311401 A CN 1311401A CN 00103919 CN00103919 CN 00103919 CN 00103919 A CN00103919 A CN 00103919A CN 1311401 A CN1311401 A CN 1311401A
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China
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double side
side expanding
screw
expanding screw
conehead
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CN 00103919
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English (en)
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孟祥厚
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Individual
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Individual
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Priority to CN 00103919 priority Critical patent/CN1311401A/zh
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Abstract

本发明属螺丝钉制造技术,主要用于水泥和砖等结构的建筑物上固定物件。设计有双面膨胀管1和外锥头2。

Description

双面膨胀螺钉
本发明属螺丝钉制造技术,主要用于水泥和砖等结构的建筑物上固定物件。
现有的膨胀螺钉是在一个有膨胀头的螺杆上套一个单面开口的膨胀管,再加一个平垫和一个螺帽组成。使用时把它放在钻好孔的墙洞内,要固定的物件放在螺帽下压紧即可,这种产品基本上每个家庭都用过。
现有技术的缺点是由于单面膨胀,抗拉强度小。
本发明的目的是克服以上缺点,设计一种双面膨胀的螺钉。
本发明的特征是有双面膨胀管1和外锥头2。
图1是双面膨胀螺钉的结构图;
图2是低成本型双面膨胀螺钉的结构图;
图3是可控外部螺杆长度的双面膨胀螺钉的结构图。
图1中双面膨胀管1是一个双面开有口的铁管,使用时先把双面膨胀管1套在有膨胀头的螺杆3上,再套上外锥头2,放置在钻好孔的墙洞内,再放上要固定的物件和平垫4,用螺帽5压紧即可。为增大抗拉强度,外锥头2要比膨胀头螺杆3的膨胀头锥度小些,就是说要尖些。
图2中外锥头2较短,使用时再放一个较薄的铁管6。可降低成本。该图中其它符号说明参见上图。
图3中外锥头2和螺杆合在一起,内锥头7带有螺纹,使用时钻一个较深的墙孔,螺杆在墙外留到合适的长度后,用改锥转动压紧,使双面膨胀管1膨胀,然后再放上要固定的物件,再用螺帽5固定,其它符号说明参见图1。

Claims (1)

  1. 一种双面膨胀螺钉,其特征是有双面膨胀管1和外锥头2。
CN 00103919 2000-03-01 2000-03-01 双面膨胀螺钉 Pending CN1311401A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00103919 CN1311401A (zh) 2000-03-01 2000-03-01 双面膨胀螺钉

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00103919 CN1311401A (zh) 2000-03-01 2000-03-01 双面膨胀螺钉

Publications (1)

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CN1311401A true CN1311401A (zh) 2001-09-05

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Family Applications (1)

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CN 00103919 Pending CN1311401A (zh) 2000-03-01 2000-03-01 双面膨胀螺钉

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CN (1) CN1311401A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103608686A (zh) * 2011-05-19 2014-02-26 雷诺股份公司 用于估计电学装置的接地连接电阻的设备和方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103608686A (zh) * 2011-05-19 2014-02-26 雷诺股份公司 用于估计电学装置的接地连接电阻的设备和方法

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