CN2271637Y - 一种膨胀螺栓 - Google Patents

一种膨胀螺栓 Download PDF

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Publication number
CN2271637Y
CN2271637Y CN 96222422 CN96222422U CN2271637Y CN 2271637 Y CN2271637 Y CN 2271637Y CN 96222422 CN96222422 CN 96222422 CN 96222422 U CN96222422 U CN 96222422U CN 2271637 Y CN2271637 Y CN 2271637Y
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expansion sleeve
utility
model
expansion
gasket
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朱智峰
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Abstract

本实用新型涉及一种紧固件,为固定物体的膨胀螺栓,包括螺杆、膨胀套管、垫圈,其特征是:膨胀套管的一端有内螺纹,沿膨胀套管径向至少开有两根空心槽,在膨胀套管的内壁有刻痕,刻痕垂直于空心槽,膨胀套管的另一端至少伸出二齿,垫圈的一端有三个突块,另一端有与膨胀套管相配合的齿状突起。本实用新型的优点是没有螺母,使结构更简单,且安装后无摇动,加大膨胀螺栓的拉力。

Description

一种膨胀螺栓
本实用新型涉及一种紧固件,为固定物体的膨胀螺栓。
中国专利公开了一种膨胀螺丝,中国专利号92213682,这种膨胀螺丝由螺栓、弹簧垫圈、膨胀套、锥形螺母组成,它按弹簧垫圈、平垫圈、膨胀套顺序套入到螺栓上,然后将锥形螺母旋紧即为膨胀螺丝。但该方案的技术效果并不理想,不能承受到长时间的巨大压力。
本实用新型的目的是提供安装后无摇动,拉力大的膨胀螺丝。
本实用新型的技术方案是设计一种膨胀螺栓,包括螺杆、膨胀套管、垫圈,其特征是:膨胀套管的一端有内螺纹,沿膨胀套管径向至少开有两根空心槽,在膨胀套管的内壁有刻痕,刻痕垂直于空心槽,膨胀套管的另一端至少伸出二齿,垫圈的一端有三个突块,另一端有与膨胀套管相配合的齿状突起。
本实用新型的优点是没有螺母,使结构更简单,且安装后无摇动,加大膨胀螺栓的拉力。
下面结合附图对本实用新型作详细说明,
附图1为本实用新型的膨胀套管的结构示意图,
附图2为本实用新型的垫圈的仰视图,
附图3为本实用新型的垫圈的正视图,
附图4为本实用新型的垫圈的俯视图,
附图5为本实用新型的使用状态图。
图中包括螺杆1、膨胀套管2、垫圈3,空心槽4,突块5,垫圈3的一端有三个突块5,它是用来把紧固物定位,另一端伸出二齿与膨胀套管2的一端相配合相互卡住,阻止螺杆1回旋,膨胀套管2内壁上的刻痕与空心槽4垂直。把垫圈3和膨胀套管2依次套入螺杆1,旋紧螺杆1,由于螺纹端受螺杆1紧固拉力向内收缩,膨胀套管2的外壁在空心槽4处沿着刻痕向外突起,起到了固定物体的作用。本实用新型没有采用螺母使结构简单,外壁向外突起使稳固性更佳,使用效果更好。

Claims (1)

  1. 一种膨胀螺栓,包括螺杆、膨胀套管、垫圈,其特征是:膨胀套管的一端有内螺纹,沿膨胀套管径向至少开有两根空心槽,在膨胀套管的内壁有刻痕,刻痕垂直于空心槽,膨胀套管的另一端至少伸出二齿,垫圈的一端有三个突块,另一端有与膨胀套管相配合的齿状突起。
CN 96222422 1996-12-11 1996-12-11 一种膨胀螺栓 Expired - Fee Related CN2271637Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96222422 CN2271637Y (zh) 1996-12-11 1996-12-11 一种膨胀螺栓

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96222422 CN2271637Y (zh) 1996-12-11 1996-12-11 一种膨胀螺栓

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CN2271637Y true CN2271637Y (zh) 1997-12-31

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CN 96222422 Expired - Fee Related CN2271637Y (zh) 1996-12-11 1996-12-11 一种膨胀螺栓

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CN (1) CN2271637Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100343538C (zh) * 2003-04-01 2007-10-17 李福德 一种用于空心壁的锚定螺栓
CN101694226B (zh) * 2009-05-14 2013-08-07 福建鹏坤实业有限公司 一种锚栓

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100343538C (zh) * 2003-04-01 2007-10-17 李福德 一种用于空心壁的锚定螺栓
CN101694226B (zh) * 2009-05-14 2013-08-07 福建鹏坤实业有限公司 一种锚栓

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