| 摘要 |
PURPOSE:To facilitate formation of various geometric patterns by fixing a submerged motor rotary shaft and a central boss of an impeller with a key, and setting a seat plate at the bottom of the impeller and an upper end surface of a strainer to a slidable condition at the time of rotation. CONSTITUTION:When a rotary shaft 6 of a submerged motor 4 is rotated, an impeller 1 and an impeller case 8 rotate through the central boss 7 of the impeller keyed to the rotary shaft, and an external water is introduced into the impeller case 8 by means of the impeller 1 through a strainer 5 and a water intake port 2 due to pumping action. Then said water is ejected outside via foundation holes 11, 12 and the ejected water is permitted to form various geometric patterns such as cone, double cone, cylinder and their combinations by means of the rotation of the impeller case 8 and centrifugal force generated by the rotation. In addition, it is possible to freely control the height of a foundation and others by applying inverter control to the submerged motor 4. |
