The utility model discloses a shredding sewage pump, which aims to provide a screw water pump used for discharging sewage and sandy-containing water. The utility model comprises a steel rigid helical rotor, an elastic gelatin helical stator and a pump shell, wherein the steel helical rotor is sheathed in the glue helical rotor, the glue helical rotor is nested in the pump shell, the water inlet end of the steel helical rotor A tooth plate is arranged on the inner wall of the pump shell, a water ring is arranged on the inner wall of the pump shell, a tooth ring is nested on the water inlet end of the pump shell, and the opposite end surfaces of the pump shell are slightly gapped. The utility model avoids the blockage of dirt and the occurrence of filament winding, and has the advantages of high head, low energy consumption, simple operation, convenient use, high working efficiency, long service life and long service life; and is suitable for drainage and irrigation of various sewage. The main claim: A shredding sewage pump comprises a steel spiral rotor (1), a gel spiral stator (2) and a pump casing (3), wherein the steel spiral rotor (1) is screwed in the glue spiral stator The helical stator 2 is nested in the pump housing 3. The pump housing 3 is provided with a water inlet 3-1. The utility model is characterized in that the water inlet 3-1 of the steel helical rotor 1 ) Is provided with a toothed piece (4). A tooth ring (5) is nested at the water inlet (3-1) end of the pump shell (3) with a slight gap between the tooth piece (4) and the toothed ring (5). Sewage pump with dual functions of cutting and backwashing Application number / patent number: 200620042568 The utility model relates to a sewage pump with the dual functions of cutting and backwashing. Which comprises a motor, a rotating shaft, a pump body, an impeller and a base. The utility model is characterized in that an impeller is connected with the impeller at the front end of the impeller, the impeller is located outside the water inlet of the base, and backwash holes are arranged on the pump body and the base. The rim of the water inlet of the base is in the shape of a flower-tooth, and the front of the blade of the impeller corresponds to the base. The utility model has the advantages that the dual functions of cutting and backwashing can be realized on one sewage pump and the applicable scope of the sewage pump can be improved. The utility model is characterized in that the impeller is connected with an impeller at the front end of the impeller, the impeller is arranged on the outside of the water inlet of the base, the impeller is arranged on the pump body and There are backwash holes on the base. Sewage pump with dual functions of cutting and backwashing Application number / patent number: 200620042568 The utility model relates to a sewage pump with the dual functions of cutting and backwashing. Which comprises a motor, a rotating shaft, a pump body, an impeller and a base. The utility model is characterized in that an impeller is connected with the impeller at the front end of the impeller, the impeller is located outside the water inlet of the base, and backwash holes are arranged on the pump body and the base. The rim of the water inlet of the base is in the shape of a flower-tooth, and the front of the blade of the impeller corresponds to the base. The utility model has the advantages that the dual functions of cutting and backwashing can be realized on one sewage pump and the applicable scope of the sewage pump can be improved. The utility model is characterized in that the impeller is connected with an impeller at the front end of the impeller, the impeller is arranged on the outside of the water inlet of the base, the impeller is arranged on the pump body and There are backwash holes on the base. The utility model relates to a flexible shaft engineering sewage pump, belonging to the field of general fluid machinery. The pump shaft 4 and the pump shaft 2 is fixedly connected by a connector 5, the flexible shaft jacket with a hose 6, one end of the pump cover 7 through a connector 8 fixedly connected to the other end of the flexible shaft through the joint two 9 and matching Power output shaft 3 is connected, the hose 6 through the hose connector 10 and the flexible shaft fixed sockets. The advantages lie in: novel and reasonable structure, small size, light weight, easy installation and other advantages. Can be easily away from the power of the area or need to move frequently used places. The main claim: A flexible shaft engineering sewage pump is characterized in that a water pump shaft (4) of a water pump (1) is fixedly connected with a flexible shaft (2) through a joint (5); the flexible shaft is sheathed with a hose And the pump cover (7) is fixedly connected through a connector (8), the other end of the flexible shaft is connected with the output shaft of the auxiliary power (3) through the connector (9), the hose (6) Fixed with flexible shaft.