Fixing clamp for hot melt welding of water supply and drainage PE pipeline

The utility model relates to a fixing clamp for hot melt welding of a water supply and drainage PE pipeline, which comprises a bottom plate, two bearing seats are arranged at two ends of the upper surface of the bottom plate, hollow rotating shafts are mounted on the two bearing seats through bearings, two mounting plates are symmetrically fixed on the outer wall of each hollow rotating shaft about an axis, and adjustable clamping devices are arranged on the mounting plates. Two adjustable clamping devices on each hollow rotating shaft clamp a pipeline to be welded, a plurality of grooves areformed in the positions, on the two sides of the pipeline, of the upper surface of the bottom plate, sliding frames are installed in the grooves, springs are arranged between the lower ends of the side walls of the sliding frames and the inner walls, away from the pipeline, of the grooves, and L-shaped anti-rotation frames are arranged on the sides, facing the pipeline, of the sliding frames. TheL-shaped anti-rotation fra