| 摘要 |
The present invention provides a vacuum self-priming pump connected to a sanitary installation to pump a fluid such as various kinds of sewage to stably be discharged. Specifically, to smoothly inject the fluid, the vacuum self-priming pump comprises: a reception pipe (2); a pump pipe (3); and a chamber (4). The reception pipe (2) is connected to the sanitary installation to receive introduced sewage. The pump pipe (3) is connectively coupled to the reception pipe (2) to vacuously take in and pump the sewage received in the reception pipe (2). The chamber (4) is connectively coupled to pump pipe (3) to receive and discharge the introduced fluid pumped by the pump pipe (3). The pump pipe (3) includes a screw impeller (7) axially coupled to a center shaft (6), which is applied with rotation force of a motor (5) to be rotated, and is rotated by being interlocked with the center shaft (6). The reception pipe (2) further comprises an induction means. The inducement means is axially coupled to the center shaft (6) and is rotated by being interlocked with the center shaft (6), thereby inducing the fluid received in the interior of the reception pipe (2) to the pump pipe (3). The inducement means comprises: a body (8) axially fixated to the center shaft (6) and an inducing body (10) having an inducing protrusion (9) protruding from the front end of the body (8) to be extended in the direction of the reception pipe (2). The body (8) has an inducting groove (11) formed in a linear direction from the front end toward the rear end to induce the fluid. |
