Dedicated fixing device for HGIS (Hybrid Gas Insulated Switchgear) isolating switch body transmission input shaft

The invention discloses a dedicated fixing device for an HGIS (Hybrid Gas Insulated Switchgear) isolating switch body transmission input shaft. The dedicated fixing device comprises a fixture base plate, which comprises a fixed plate, a positioning plate and a connecting plate, wherein the fixed plate is parallel to the positioning plate and is connected with the positioning plate by the connecting plate; the fixed plate, the positioning plate and the connecting plate form an integral structure; and the fixed plate is provided with two circular holes in which fixing screws are arranged, the positioning plate is provided with three circular holes which are screw holes, two positioning nails and a bolt are arranged in the circular holes of the positioning plate, and a pressure plate is arranged at one end of the bolt. The dedicated fixing device is simple in structure, has the function of preventing the isolating switch transmission input shaft from shifting under the action of gravity, solves coherent mechanical faults caused by shifting, and is convenient to maintain.