Plug-in type bus duct, plug-in unit, plug-in type bus system and installation tool

The invention provides a plug-in type bus duct, a plug-in unit, a plug-in type bus system and an installation tool. The bus duct comprises a housing and multiple bus units arranged in the housing. A first opening in which the plug-in unit can be inserted is arranged in the bottom of the housing. Each bus unit comprises an insulation assembly arranged in the housing and a conductive assembly. A second opening is arranged in the top of each insulation assembly. Each conductive assembly is arranged in and surrounded by the corresponding insulation assembly. A conductive structure which is in electric contact with a plug-in head, which is vertically inserted in the corresponding second opening, of a plug-in unit is arranged in a part, facing the corresponding second opening, of the corresponding conductive assembly. The invention also relates to the plug-in unit which is matched with the plug-in type bus duct, the plug-in type bus system formed by the plug-in type bus duct and the plug-in unit cooperatively, and