Self-tapping expansion knotting heat-bridge-breaking anchor bolt for heat preservation system and installation method

Abstract

The invention discloses a self-tapping expansion knotting heat-bridge-breaking anchor bolt for a building heat preservation system and an installation method. The anchor bolt comprises a heat-bridge-breaking bolt body, an anchoring external member and an internal thread screw pipe, wherein one end of the internal thread screw pipe is coaxially and fixedly connected with a self-tapping screw. The heat-bridge-breaking bolt body is composed of an anchoring disc and a screw rod, the anchoring disc is coaxially and fixedly arranged at one end of the screw rod, the screw rod end of the self-tapping screw is sleeved with the anchoring external member, and the screw rod end of the self-tapping screw is matched with the anchoring kit in an expansion and knotting manner; and the screw rod of the heat-bridge-breaking bolt body is in screw joint and fastening fit with the internal thread screw pipe. The installation method of the anchor bolt comprises the steps that a heat preservation plate is pasted outside a base layer wall body, the self-tapping screw is sleeved with the anchoring external member, and the anchoring external member is inserted into a drill hole along with the self-tapping screw and reach the anchoring depth; and the anchoring disc of the heat-bridge-breaking bolt body is screwed to drive the self-tapping screw to rotate, the self-tapping screw is gradually screwed into the anchoring external member through rotation, and the anchoring external member is expanded or knotted and is in anchoring connection with the base layer wall body until the anchoring disc of the heat-bridge-breaking bolt body is tightly attached to the outer surface of a new heat preservation plate.

Description

technical field [0001] The invention belongs to the technical field of building heat preservation, and in particular relates to a self-tapping expansion knotted thermal break bridge anchor bolt and an installation method for a building heat preservation system. Background technique [0002] As an important part of building energy conservation, building external thermal insulation system usually uses anchors to anchor the thermal insulation board to the building structure. The thermal break bridge performance and mechanical properties of the anchors are crucial to the performance and safety of the thermal insulation system. [0003] For the traditional building thermal insulation system, it mostly adopts the construction method of first constructing the wall and then sticking the anchor insulation board, and the traditional thermal insulation anchor bolt used is the expansion force of the plastic sleeve, which can only generate 0.6KN. Anchor pullout force, for the hollow bloc...

AI Technical Summary

Problems solved by technology

[0005] The Chinese patent application with the announcement number 201820450507.0 discloses a heat-breaking bridge anchor bolt, which uses a non-metallic composite material plastic-wrapped reinforcement structure to block the thermal bridge of the anchor bolt, and improves the pull-out of the anchor bolt through bolt fastening. Although the thermal break bridge anchor bolt improves the performance of the thermal break bridge connector, it is not suitable for the construction process of the external wall thermal insulation system using cement or anchor bolts or a combination of the two methods

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