PVC threading pipe protection device for construction

The invention discloses a PVC conduit protection device for construction, which comprises an adjustable supporting base and a protection fixing device, the adjustable supporting base comprises a supporting shell, a driving adjusting assembly and a supporting frame, the lower part of the supporting shell is semispherical, the driving adjusting assembly comprises a supporting worm, a supporting worm gear and a sliding plate, and the supporting worm is provided with a supporting groove; the supporting worm is rotationally arranged in the supporting shell, the supporting worm gear is rotationally arranged in the supporting shell, the supporting worm gear is meshed with the supporting worm, a sliding groove is formed in the shell, the sliding plate is arranged in the sliding groove in a sliding mode, a helical rack is arranged on the inner side of the sliding plate, and the supporting worm is meshed with the sliding plate; the invention belongs to the field of pipeline protection devices, and particularly relates