CN2091378U - 分片式膨胀螺丝 - Google Patents

分片式膨胀螺丝 Download PDF

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Publication number
CN2091378U
CN2091378U CN 91207721 CN91207721U CN2091378U CN 2091378 U CN2091378 U CN 2091378U CN 91207721 CN91207721 CN 91207721 CN 91207721 U CN91207721 U CN 91207721U CN 2091378 U CN2091378 U CN 2091378U
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China
Prior art keywords
intumescent sheet
screw
tapered cup
cup nut
setscrew
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CN 91207721
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English (en)
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陈彭江
陈彭海
张海泉
张海涌
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Priority to CN 91207721 priority Critical patent/CN2091378U/zh
Publication of CN2091378U publication Critical patent/CN2091378U/zh
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Abstract

一种分片式膨胀螺丝,螺钉端部联接锥形螺母, 锥形螺母上有限位柱,膨胀片为多片式。各膨胀片的 搭接边为锯齿形,该膨胀螺丝使用时拧动省力。

Description

本实用新型涉及一种膨胀螺丝。
现有的膨胀螺丝的膨胀片一般为整体的内螺纹型,其下部的豁口使用时内摩擦力大,拧动很费力。
本实用新型的目的是提供一种分片式的拧动用力较小的膨胀螺丝。
本新型的目的是通过以下措施实现的,在螺钉的螺纹端部联接锥形螺母,锥形螺母的上部有限位柱5。限位柱为圆柱形,其顶部为锥形。螺钉和锥形螺母的外部由钢丝环紧固两片组合的膨胀片。膨胀片之间有缝隙,拧动螺钉时,锥形螺母上移,限位柱在膨胀片的缝隙间向上移动,膨胀片下部胀大。
也可以采用三片膨胀片组合用,膨胀片之间的搭接边为锯齿形,搭接部分的下部缝隙较大,采用锯齿形搭接边以防止膨胀片上下移动。
以下结合附图和实施例叙述。
图1为本新型的装配图。
图2为图1的A-A向视图。
图3为膨胀片边沿无锯齿形膨胀螺丝的装配图。
参照附图为本新型的一个实施例。结构如上所述。膨胀片2为二片组合形,各片搭接部分为锯齿形4。其下部缝隙较大。使用时,拧紧螺钉1,锥形螺母6上移,膨胀片之间外膨胀,钢丝环3随之膨胀。起到固定作用。
该膨胀螺丝使用省力,紧固性强。

Claims (2)

1、一种分片式膨胀螺丝,其特征是螺钉1的螺纹端部联接锥形螺母6,锥形螺母6的上部有限位柱5,螺钉1和锥形螺母6的外部由钢丝环3紧固两片组合的膨胀片2,膨胀片之间有缝隙。
2、根据权利要求1所述的膨胀螺丝,其特征是所述的膨胀片2为三片组合式,各膨胀片2的搭接边为锯齿形,搭接部分的下部缝隙较大。
CN 91207721 1991-05-13 1991-05-13 分片式膨胀螺丝 Withdrawn CN2091378U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91207721 CN2091378U (zh) 1991-05-13 1991-05-13 分片式膨胀螺丝

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91207721 CN2091378U (zh) 1991-05-13 1991-05-13 分片式膨胀螺丝

Publications (1)

Publication Number Publication Date
CN2091378U true CN2091378U (zh) 1991-12-25

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Family Applications (1)

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CN 91207721 Withdrawn CN2091378U (zh) 1991-05-13 1991-05-13 分片式膨胀螺丝

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CN (1) CN2091378U (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836576A (zh) * 2015-06-26 2017-06-13 金国鑫 一种适用于加气混凝土砌块墙质的干挂构件
CN109751306A (zh) * 2018-11-13 2019-05-14 林仕强 可拆卸两用膨胀构件

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836576A (zh) * 2015-06-26 2017-06-13 金国鑫 一种适用于加气混凝土砌块墙质的干挂构件
CN106836577A (zh) * 2015-06-26 2017-06-13 金国鑫 一种建筑石材幕墙干挂的方法
CN106836576B (zh) * 2015-06-26 2018-12-25 江苏和天下节能科技股份有限公司 一种适用于加气混凝土砌块墙质的干挂构件
CN106836577B (zh) * 2015-06-26 2019-01-11 上海现代建筑设计集团工程建设咨询有限公司 一种建筑石材幕墙干挂的方法
CN109751306A (zh) * 2018-11-13 2019-05-14 林仕强 可拆卸两用膨胀构件

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