CN2433449Y - 整体紧固式膨胀螺栓 - Google Patents
整体紧固式膨胀螺栓 Download PDFInfo
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- CN2433449Y CN2433449Y CN 00229981 CN00229981U CN2433449Y CN 2433449 Y CN2433449 Y CN 2433449Y CN 00229981 CN00229981 CN 00229981 CN 00229981 U CN00229981 U CN 00229981U CN 2433449 Y CN2433449 Y CN 2433449Y
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Abstract
本实用新型涉及机械紧固件,整体紧固式膨胀螺栓由胀套、带螺杆的胀头和螺帽组成,胀套的一端均布设置有四条开槽,其特征在于:胀套的内腔带有锥度,且胀套内腔锥度与胀头表面锥度一致,均小于1∶30,特点是:胀套里圆柱形扩胀,紧固时与墙壁呈圆柱面大面积接触,紧固效果好。
Description
本实用新型涉及机械紧固件,是一种整体紧固式膨胀螺栓。
目前,市场上的膨胀螺栓,其特征均是胀头锥度大,它挤起胀套紧贴墙壁仅是胀头锥体根部一周处,这是一种园周线接触紧固,当外力强烈冲击时,就会松动,当墙壁材质较软时,如空心墙结构或木质结构,也会出现紧固不牢现象。
本实用新型的目的是提供一种整体紧固式膨胀螺栓,它的胀头在挤起胀套时,使胀套整段呈园柱形扩胀实现紧固,在强外力冲击或墙壁环境较软时均能实现紧固。
本实用新型的目的是这样实现的,整体紧固式膨胀螺栓由胀套、带螺杆的胀头和螺帽组成,胀套的一端均布设置有四条开槽,其特征在于:胀套的内腔带有锥度,且胀套内腔锥度与胀头的表面锥度一致,均小于1∶30。
本实用新型的特点是:胀套呈园柱形扩胀,紧固时与墙壁呈园柱面大面积接触,紧固效果好。
下面结合附图实施例进一步叙述,图1为本实用新型的典型应用实例,图2为本实用新型的又一应用实例。实施例1:参看图1,胀套1、胀头2均系中碳钢材经机械加工制成,胀套长70mm,最薄处1mm,外径φ14mm,胀头底园φ14mm,胀头总长128mm,胀套和胀头的锥度均为1∶30,锥度范围长均为60mm,螺帽3采用标准件,其内螺孔与螺杆为φ8mm螺纹啮合,本实例在使用中,胀套挤胀成为φ16×60mm的园柱面紧固。
实施例2:参看图2,其结构原理与实施例1完全相同,只是将胀头2和螺帽3,组合成带螺纹的胀头4和螺杆5,使用方法不变,这种结构外表美观。
Claims (1)
1.一种整体紧固式膨胀螺栓由胀套1、带螺杆的胀头2和螺帽3组成,胀套1的一端均布设置有四条开槽,其特征在于:胀套1的内腔带有锥度,且胀套内腔锥度与胀头2的表面锥度一致,均小于1∶30。
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CN 00229981 CN2433449Y (zh) | 2000-05-23 | 2000-05-23 | 整体紧固式膨胀螺栓 |
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CN 00229981 CN2433449Y (zh) | 2000-05-23 | 2000-05-23 | 整体紧固式膨胀螺栓 |
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CN 00229981 Expired - Fee Related CN2433449Y (zh) | 2000-05-23 | 2000-05-23 | 整体紧固式膨胀螺栓 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889277A (zh) * | 2012-10-18 | 2013-01-23 | 马涛 | 一种紧固型膨胀螺栓 |
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- 2000-05-23 CN CN 00229981 patent/CN2433449Y/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889277A (zh) * | 2012-10-18 | 2013-01-23 | 马涛 | 一种紧固型膨胀螺栓 |
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