| 摘要 |
PURPOSE:To contrive at reduction of dewatering vibration by forming a blade into an S shape having a circular arc in the rotary direction of the blade, in the case of a pump which houses the blade in a casing of almost inverted triangular section providing a suction port of water and its blow outlet positioned in the upper of the suction port. CONSTITUTION:A bottom casing 1, respectively providing a suction port 4 in the bottom part while a blow outlet 5, communicating with a blow nozzle 6, in the upper of the suction port 4, forms an almost inverted triangular section successively increasing an internal surface area toward the upper from the suction port 4. And fixing an upper casing 2 to this bottom casing 1 to constitute an integrally formed casing, in this casing, a blade 3 of almost inverted triangular shape as viewed from the front is housed so as to be turned by driving a motor 7. Further the blade 3 forms a rear facing blade shape having a circular arc in the rotary direction (arrow head). By the blade thus obtained, smoothing the cutting action for drain water, the reduction of dewatering vibration is contrived. |
