A VACUUM PUMP

摘要

The present invention relates to a vacuum pump to stably discharge a fluid such as sewage by connecting to a sanitary facility by pumping, and to facilitate inflow of the fluid, comprising: a receiving pipe (2) to receive sewage by connecting to the sanitary facility; a pump pipe (3) connected to pump the received sewage in the receiving pipe (2) by vacuum suction; and a chamber (4) connected to receive the fluid pumped from the pump pipe (3) to discharge the same. The pump pipe (3) is provided with a screw impeller (7) rotating in connection to a center axis (6) by coupling to the center axis (6) rotating by a rotating force of a motor (5). The receiving pipe (2) additionally includes an inducing means to induce the fluid received in the receiving pipe (2) to the pump pipe (3), wherein the inducing means comprises a body (8) fixated to the center axis (6) and an inducing body (10) having an inducing wing (9) formed by extending to a lateral direction of the chamber (4) on a location of the lateral direction of the chamber (4) of the body (8). On the location of the inducing wing (9) on the body (8), a sloped surface is provided to have a corn shape narrowing in the direction of the lateral direction of the chamber (4) to move the fluid along the sloped surface.