The invention discloses a pressure wheel assembly which comprises a handle, a base and a roller wheel set, wherein the base is a T-shaped body, a platform is arranged at the upper part of the base, and the lower part of the base is connected with the handle; the roller wheel set comprises a roller wheel bracket and a plurality of roller wheels, wherein the roller wheel bracket is arranged on a platform of the base, the roller wheels are rotatably arranged on the roller wheel bracket, and a drop height is formed between the roller wheels according to the shape structure of a spirally corrugated tube when the surface of the spirally corrugated tube is rolled by the roller wheels. According to the pressure wheel assembly, an external pressure is applied to the spirally corrugated outer tube in steel wire winding and round inner and outer tube injection molding processes, so that the spirally corrugated outer tube closely fits a reinforcement layer of a middle layer, the bonding strength and the bonding compactness are greatly improved, the quality of the spirally corrugated tube is ensured, and the service life of the spirally corrugated tube is prolonged.