一种限位膨胀锚栓

Limit expansion anchor bolt

  • Inventors: YU LIU
  • Assignees: 刘宇
  • Publication Date: January 03, 2007
  • Publication Number: CN-2854170-Y

Abstract

一种限位膨胀锚栓,属于在内端扩大的钻孔中锚定的膨胀螺栓。包括锚杆和与锚杆配合的膨胀套,膨胀套具有一膨胀部,膨胀部开有多条轴向的条形槽口,膨胀部的一端连接膨胀套,其特征在于所述膨胀套内孔的上端套丝加工成形有内螺纹,其下端为光孔,光孔的孔径小于内螺纹的直径;所述锚杆上加工成形有与膨胀套内螺纹配合的外螺纹,锚杆旋入端加工成形有与光孔配合的光杆,所述锚杆能够旋入膨胀套内将膨胀部撑开并由光孔限位。该膨胀锚栓结构简单、方便拆装,锚杆和膨胀套结合牢固并避免锚杆旋出膨胀部破坏板材,可用于各种刚性装饰板材的锚定及其它构件的锚定。
A limit expansion anchor bolt which belongs to expansion bolt anchored in drillhole with enlarged internal end. It is composed of anchor pile and expansion sleeve matching with anchor pile. Expansion sleeve has one expansion part, on which a plurality of longitudinal bar-shaped troughs are opened. One end of expansion part is connected to expansion sleeve. Top end of internal hole of expansion sleeve is processed into internal thread. Bottom end of expansion part is unthreaded hole with the diameter smaller than that of internal thread. Anchor pile is processed into external thread matching with internal thread of expansion sleeve. Revolving end of anchor pile is processed into polished rod matching with unthreaded hole. The anchor pile can be rotated into expansion sleeve and push off expansion part for unthreaded hole restriction. The expansion anchor bolt features simple structure and easy disassembly and assembly. Anchor pile and expansion sleeve are bonded tightly to prevent the screwing out of anchor pile from expansion part to damage the board. The limit expansion anchor bolt can be applied in the anchorage of various rigid decorative boards and other components.

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