Device for detecting temperature of alloy big-stick continuous hardening and tempering heat treatment quenching furnace

The invention relates to a device for detecting temperature of an alloy big-stick continuous hardening and tempering heat treatment quenching furnace. The device for detecting the temperature of the alloy big-stick continuous hardening and tempering heat treatment quenching furnace is characterized by comprising a sample stick to be detected, a first sheathed thermocouple, a second sheathed thermocouple, a third sheathed thermocouple and a multi-channel thermometer, wherein a limiting seat is arranged at the rear end of the sample stick to be detected, a wire spool is welded in the limiting seat, an axially arranged inserted line slot is formed in the cylindrical surface of the sample stick to be detected, a radial mounting hole A and a radial mounting hole B which are arranged front and back are formed in the bottom of the inserted line slot, an axial mounting hole C is formed in the front side wall of the inserted line slot, temperature sensing probes of the first, second and third sheathed thermocouples ar