Low-temperature plasma cathode wire fixing device

The utility model relates to a low-temperature plasma cathode wire fixing device, and belongs to the technical field of plasma cathode wire fixing. In order to solve the problem that an existing plasma cathode wire fixing device cannot conduct insulation protection on a cathode wire, the following technical scheme is provided, the plasma cathode wire fixing device comprises a connecting plate and a first bolt, and the first bolt is installed at the top of the connecting plate in a penetrating mode; an insulating connecting piece is installed on the outer surface of the first bolt through a nut, and a high-strength resin connecting piece is installed at the top of the insulating connecting piece in a penetrating mode. The insulation connecting piece and the high-strength resin connecting piece are installed through the first bolt, the high-strength resin connecting piece provides shielding for one end of the cathode wire, insulation protection is provided for the cathode wire through the insulativity of resin,