Tooth-shaped drawing prevention plastic anchor nail for fixing external wall insulation boards

Abstract

The invention discloses a tooth-shaped drawing prevention plastic anchor nail for fixing external wall insulation boards. The tooth-shaped drawing prevention plastic anchor nail comprises a disc and a nail rod, the nail rod is divided into a fixing section, a cutting prevention section and a joint section from top to bottom, the cross section of the fixing section is square, inverted wedged racks are arranged on two symmetrical surfaces of the side face of the fixing section, the radial dimension of each rack gradually increases from top to bottom, large circular inverted wedged type drawing prevention beards are arranged on the other two surfaces of the side face of the fixing section, a drawing prevention head is arranged at the uppermost of the fixing section, a pin hole is arranged in the middle of the cutting prevention section, small circular inverted wedged type drawing prevention beards are arranged on the side face of the fixing section, the large drawing prevention beards and the small drawing prevention beards are arranged with convex sides of arcs facing upwards, the radial size of the drawing prevention head and the radial size of the lower end of each rack are smaller than or equal to the radial size of the cutting prevention section, and four small holes are evenly arranged in the surface of the disc. The tension capacity of the anchor nail is high, anchoring force is high, and the anchor nail is convenient to mount, free of limitation of execution conditions, high in stability, simple in structure, low in cost and applicable to various concrete structures and rock structures.

Description

technical field [0001] The invention belongs to the technical field of integration of decoration and external wall thermal insulation engineering, and in particular relates to a tooth-shaped anti-pulling plastic anchor for fixing external wall thermal insulation boards. Background technique [0002] With the continuous development of society, more and more high-rise building outer layers need to be equipped with thermal insulation systems. In engineering, anchors and adhesives bear all the load of the insulation board. Plastic anchors are a kind of anchors and are widely used. In external wall insulation projects, percussion anchor bolts are generally used, which are suitable for auxiliary wind pressure-resistant fixation in parts subject to strong negative wind pressure that generate vibration and strong negative wind pressure. The function and life of the anchor bolts are very important. The extent depends on the degree of pull-out prevention of the rack at the rod. Th...

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Problems solved by technology

[0002] With the continuous development of society, more and more high-rise building outer layers need to be equipped with thermal insulation systems. In engineering, anchors and adhesives bear all the load of the insulation board. Plastic anchors are a kind of anchors and are widely used. In external wall insulation projects, percussion anchor bolts are generally used, which are suitable for auxiliary wind pressure-resistant fixation in parts subject to strong negative wind pressure that generate vibration and strong negative wind pressure. The function and life of the anchor bolts are very important. The extent depends on the degree of pull-out prevention of the rack at the rod. The rack must provide sufficient anchoring capacity and reasonable service life. Many existing projects are caused by loose anchors, which cause the insulation board to fall off, which seriously threatens personal life. Safety, the anchoring force of the existing plastic anchors is not stable enough, some of them are good but the cost is high, and cannot be popularized in a large area, so an anchor with high tensile bearing capacity and low cost is needed to meet the needs of the work

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