Combined waterstop fixing structure for sewage pool wall construction joint

The utility model discloses a combined type water stop fixing structure for a sewage pool wall construction joint. The combined type water stop fixing structure comprises a fixing clamp, an inner supporting structure and a connecting piece. The number of the fixing clamps is multiple, each fixing clamp comprises two fixing clamping pieces which are symmetrically arranged, and the two fixing clamping pieces clamp the two sides of the water stop belt; the sewage pool wall construction joint is provided with a plurality of water-stop belts arranged in parallel, the fixing clamps between the adjacent water-stop belts are connected together through the inner supporting structures, and the fixing clamps located on the two sides of the same water-stop belt are connected together through the connecting pieces. The device is simple in structure, materials are convenient to obtain, and the double-layer water stop belt can be clamped, so that in the concrete pouring process, the water stop belt cannot be twisted and dev