High-temperature-resistant protection device for pipeline threading

The utility model discloses an anti-high temperature protection device for pipeline threading, which comprises a protection pipe used for heat protection and a supporting mechanism arranged on the protection pipe and used for supporting the protection pipe in a pipeline, a wire in the pipeline penetrates through the protection pipe, and the supporting mechanism is arranged on the protection pipe and used for supporting the protection pipe in the pipeline. The supporting mechanism comprises two sets of supporting assemblies symmetrically arranged at the two ends of the protection pipe and a driving mechanism arranged between the two sets of supporting assemblies. Wherein the supporting assembly comprises at least two supporting rods, one end of each supporting rod is hinged to the end of the protective pipe, and the driving mechanism is used for adjusting the radial supporting height of the supporting rods. In the process of welding the pipeline, the device can play a role in heat insulation and heat protectio