Pre-embedded cable protection pipe supporting structure

The invention relates to a pre-buried cable protection pipe supporting structure which comprises a base frame, a supporting frame and locking and sealing assemblies, the base frame is of a U-shaped structure, arc-shaped grooves are formed in the upper end of the base frame, the supporting frame is of an H-shaped structure, the arc-shaped grooves are symmetrically formed in the supporting frame, the locking and sealing assemblies are installed in the arc-shaped grooves, and the locking and sealing assemblies are installed in the locking and sealing assemblies. Lug seats are respectively arranged on the outer side surfaces of the base frame and the support frame, and the base frame and the support frame are locked and matched through the lug seats. The cable end sealing device can seal the cable end while accurately supporting the cable end, the sealing effect is good, a gap between the cable protection pipe and the rubber sleeve is avoided, liquid is prevented from permeating into the cable protection pipe, an