| 摘要 |
PROBLEM TO BE SOLVED: To provide a sewage force feed device 48 for further lowering the height up to a sewage inflow chamber 20 from a floor to lower a position a toilet bowl. SOLUTION: A submerged motor chamber 22 for housing a submerged motor 28 is arranged under the sewage inflow chamber 20 for arranging a large number of outflow holes in a side wall, and a pump chamber 24 is arranged under the submerged motor chamber 22. An impeller 32 is fixed to a lower end part of a pump shaft 30 projecting to the pump chamber 24 from the submerged motor 28 by penetrating through a lower side partition wall 36 between the submerged motor chamber 22 and the pump chamber 24. Two oil seals 40 and 42 for penetrating the pump shaft 30 are arranged at an interval in the shaft direction on the lower side partition wall 36, and a lubricating liquid chamber 50 opening toward the pump shaft 30 is arranged between the two oil seals. A lubricating liquid is supplied to the lubricating liquid chamber 50 by pressure higher than pressure for forcibly feeding sewage by the impeller 32 from a lubricating liquid pressure supply means.
|
