Temperature measuring device of high-temperature alloy anti-gravity precision casting furnace

The invention discloses a temperature measuring device for a high-temperature alloy anti-gravity precision casting furnace. A communicating part is of a tubular structure formed on the side wall of a smelting chamber; the fixed seat is fixedly and hermetically connected to one end of the communicating part outside the smelting chamber; the mounting seat is of a hollow structure and is fixed on the fixed seat; the rotating handle is fixed on the mounting seat and is used for driving the gear to rotate; the inner ring of the outer tooth slewing bearing is fixedly mounted on the mounting seat, teeth are formed on the outer ring, and the outer ring is driven by a gear to rotate; the threading pipeline forms a non-linear pipeline, one end of the threading pipeline is meshed with the outer ring of the external tooth slewing bearing through the communicating part, the other end of the threading pipeline is provided with a thermocouple assembly, and a thermocouple signal transmission line penetrates through the threa