Embedded undercut insulating anchor and embedding method thereof

Abstract

The invention discloses an embedded undercut insulating anchor and an embedding method thereof. The embedded undercut insulating anchor is of a more reliable mounting structure, is corrosion resistant, quite stable after long term use and easy and convenient to mount. The embedded undercut insulating anchor consists of a bolt and an insulating layer covering the bolt outside. The bolt comprises a taper head and an anchor rod, a hole is formed inwards at the end of the anchor rod and provided with an internal thread on the inner wall, and the taper head is of an undercut structure. The insulating layer is made of high-polymer insulating material and four anti-rotation reinforcing ribs distributed evenly are arranged on the outer surface of the insulating layer. The invention further discloses an embedding method of the embedded undercut insulating anchor.

Description

technical field [0001] The invention relates to a pre-embedded anchor bolt, in particular to a pre-embedded anchor bolt for urban track construction. Background technique [0002] In the construction of urban rail, there are mainly three types of anchor bolts, expansion metal anchor bolts, reaming metal anchor bolts, and chemical anchor bolts. [0003] Metal anchors can be divided into expansion type metal anchors and reaming type metal anchors according to the anchoring form. Expansion-type metal anchor bolts use the static friction generated by the expansion force generated with the base material during installation to play the role of anchoring; reaming-type metal anchor bolts are formed in the concrete during the drilling process by a special drill bit The tapered hole holds the anchor bolt in the concrete, thus acting as an anchor. Chemical anchor bolts use chemical adhesives to bond metal screws to concrete to anchor them. [0004] The expansion force of the expansi...

AI Technical Summary

Problems solved by technology

[0005] In addition to the above-mentioned shortcomings, these three kinds of anchor bolts have three common shortcomings. First, the installation process is greatly affected by people, especially in places where installation is difficult; If the drill touches the steel bar, it is easy to damage the special drill, but the most critical problem is not to damage the special drill, but to change the installation position and re-drill the holes for installation. Do not change the installation location in batches, which brings uncertain factors to the construction and installation; third, it is necessary to drill holes on the concrete substrate, and the drilling will cause a certain degree of damage to the concrete substrate, especially when the concrete substrate is not In a good situation, concrete cracks are easy to occur. Once the concrete crack passes through the anchor bolt, its destructiveness is instantaneous in a vibration environment

Images