| 摘要 |
According to one aspect of the present invention, provided is a grounding device made of a stainless-steel. The grounding device of the present invention includes: a grounding part main body including a hollow cylindrical body tube and a spiral type screw wing which is integrally formed along a length around the body tube; a connection unit which is connected to an upper part of the body tube; an excavation tip which is connected to a lower part of the body tube; and a lead terminal rod which is connected to an upper part of the connection unit. The upper part of the body tube has a flange and a flange coupling formed to connect another grounding part main body or the connection unit selectively. And a first connection concave groove is formed in an inner radius of the upper part of the body tube in order to connect a third connection protrusion formed at the outside of a bottom connection part of the other grounding part main body or a first connection concave groove formed at the outside of a bottom connection part of the connection unit selectively. |
