Infrared receiving tube capable of resisting high temperature

The utility model relates to the field of infrared receiving tubes, in particular to a high-temperature-resistant infrared receiving tube, which comprises a receiving assembly and a connecting assembly, the receiving assembly comprises a receiving position and a main body, the receiving position is semicircular glass, one end of the main body far away from the receiving position is provided with an installation clamping groove, and the connecting assembly comprises a connecting plate, a fixed reed and a connecting pin. The connecting plate is movably arranged in the installation clamping groove, the fixing reed is arranged on the top face of the connecting plate, a containing groove is formed in the position, close to the fixing reed, of one end of the top face of the connecting plate, a spring is arranged in the containing groove, a clamping position matched with the fixing reed is arranged on the bottom face of the body, and the body is made of PAI plastic materials. The main body and the connecting assembl