Anti-corrosion wearable single-screw pump

The utility model relates to an anti-corrosion wearable single-screw pump, which comprises a pump housing (1), an elastic component with a pump cavity (2), a pump cavity (3), a connection tongue (4) between the inner pipe and outer pipe of the elastic component with a pump cavity, a screw rod (5), a pump front cover (6) with a liquid inlet channel, a pump back cover (7) with a liquid outlet channel, a liquid inlet channel (8) and a liquid outlet channel (9). The fluid in the pump cavity (3) of the elastic component (2) with a pump cavity is squeezed by the rotation of the screw rod (5), so that the fluid moves forward in the pump cavity (3) under the increase of the pressure and is discharged outside the pump, the antisepsis wearable single screw pump designed by the utility model makes the pumpover fluid not contact with the screw rod, completely resolves the problems that the corrosion and abrasion problems of the harmful mud sand and corrosive fluid on the rotor of the screw rod, radically improves the service life and efficiency of the pump, which can be used not only as various volume pumps, such as sewage pump, oil-immersed pump and air compressors, but also fluid power machine and hydraulic motor, etc..