Mechanical fixing gasket

Abstract

The invention discloses a mechanical fixing gasket. The mechanical fixing gasket comprises a sleeve cylinder, wherein the head part of the sleeve cylinder is provided with a sleeve cylinder opening; a spring and a cushion ring are arranged at the inner part of the sleeve cylinder, and the spring and the cushion ring are orderly arranged upwards from the sleeve cylinder opening; at last, the cushion ring is blocked by a salient retaining block arranged on the inner wall of the sleeve cylinder. The mechanical fixing gasket is used for making a metal screw cross through the sleeve cylinder opening so as to fix coiled materials on a pressing type steel plate or a concrete base layer when the coiled materials are in use; and then the spring, the retaining block and the fixing cushion ring are installed so as to fix the metal screw. Through the structural improvement, the coiled material fixing gasket can prevent surface fixing force from loosening, and the coiled materials from rupture and breakage of a nail rod.

Description

technical field [0001] The invention relates to a fixing washer used in the fixing construction of coiled materials, which belongs to the field of building construction accessories. Background technique [0002] The single-layer roof mechanical fixing method uses plastic and rubber polymer waterproof material waterproof sheets as the main material, and is fixed on the profiled steel plate or concrete base with metal screws and gaskets. Different from the previous asphalt coil hot-melt construction method, the polymer coil is constructed by mechanical fixing method, which effectively solves the problem that the waterproof material cannot be fully bonded due to uneven base layers. For profiled steel roofs, wooden roofs, light weight Concrete roofs have good applicability, so this construction method has been rapidly promoted in roofing projects such as factory buildings and hangars in recent years. The base of the screw-bearing structure of the mechanically fixed roof system ...

AI Technical Summary

Problems solved by technology

[0004] 1. After the gasket is fastened, affected by the collapse of the insulation board material itself, the fixing pressure presents a downward trend (as verified by experiments, the fastening force usually has an attenuation rate of about 50% to 80%). The fixed force provided cannot effectively compress the membrane, which can easily cause the risk of the entire waterproof mechanical fixing system

[0005] 2. The shape design of the gasket is unreasonable, and the overall rigidity is not strong. After the screw is fixed (or after the wind is exposed later), the parts on both sides of the gasket are bent and upturned.

[0006] 3. The thickness of the steel plate used to make the gasket is relatively thin. When the screw is fixed or after 2 to 3 years of use, it is easily affected by the fixing method or rainwater and supporting materials, resulting in severe gasket wear and later erosion damage.

[0007] At the same time, the existing mechanical fasteners on the edge of the waterproof membrane are usually made of metal gaskets. The gaskets are made of 0.8-1.0mm thick galvanized metal steel sheets and stamped. Due to the relatively smooth surface of the material, fixing is usually added around the gaskets during production. Claws (four or eight), increase the grip force of the coil, but it is easy to cause damage to the finished product of the coil

In addition, when metal products are used in such fixed engineering projects, they are usually susceptible to rainwater, acid and alkali erosion of the material itself, and are prone to rust after long-term use, resulting in poor product durability.

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