Ground insulation device suitable for shields

Abstract

The invention relates to a ground insulation device suitable for shields, which is characterized by comprising an insulating plate which is positioned below the bottom plate of the shield and horizontally arranged on concrete ground, wherein a steel base plate is arranged on the insulating plate; two parallel adjustment base plates, which are perpendicular to the ground, are arranged on the steel base plate, the inner side faces of the two adjustment base plates are fixedly provided with a channel steel, and the channel steel is welded on the bottom plate of the shield; the steel base plate and the insulating plate are arranged on the ground through an expansion bolt, an insulating tube is arranged around the expansion bolt, and insulating paint is arranged between the expansion bolt and the insulating tube as well as between the expansion bolt and the soil layer; and an insulating mat is arranged between the expansion bolt and the steel base plate. The invention has the advantages of high and stable insulation resistance, and firm connection between the shield and the ground, and can be widely used for ground insulation of other metal bodies fixed to the ground.

Description

technical field [0001] The invention relates to a ground insulation device, in particular to a ground insulation device suitable for a shielding body. Background technique [0002] The shielding room is a hexahedron room made of metal materials, and its walls, ceiling and floor are all made of metal materials. Because the metal plate has the characteristics of absorption loss, interface reflection loss and internal reflection loss in the plate to incident electromagnetic waves, it has Shielding effect. The anechoic chamber is a shielded room whose inner surface is covered with absorbing materials to reduce the reflection of electromagnetic waves on the inner surface. Shielding rooms and anechoic chambers are important facilities used in electromagnetic compatibility tests. From the perspective of safety and anti-interference, the shielding bodies of shielding rooms and anechoic chambers should be grounded. In order to avoid the current flow on the shield caused by the diff...

AI Technical Summary

Problems solved by technology

At present, the more mature ground insulation method is to use insulator pillars to support the base of the shield, but this insulation method has some disadvantages, such as: complex structure, high cost, easy damage, etc.

There have been other insulation schemes tried in China, but there are generally disadvantages such as unstable insulation resistance, low resistance, and unreliable connection between the shield and the ground.

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