| 摘要 |
PURPOSE:To prevent water temperature in a both-tub from falling by a method wherein the port of an external boiler type water circulating bath-tub is blocked by a circulating port stopper with a sucking dise and reverse circulation of the cooled water in the external furnace is prevented. CONSTITUTION:A bath-tub A and a bath boiler B are connected through two water circulation port 1, 2 and when the bath-tub is not in use these water circulating ports 1, 2 are covered with a sucking cover 3 simultaneously. At least part of the sucking cover 3 is made up elastic material such as rubber or the like as a compression section 3' and a belt-shaped sucker 5 is equipped on the periphery. When the compression section 3' is pushed by hand against the bath- tub wall, the water in the inner chamber 4 of the sucking cover 3 is scattered externally and when the compression is released, the compression section 3' returns to the originals shape and at the same time the pressure in the chamber 4 becomes negative, the sucking cover 3 sticks firmly to the inner wall of the bath-tube through the sucker 5. The dirt remover is stored as necessary in the upper chamber 8 of the above mentioned sucking cover 3 and induced into the chamber 4 by removing a plug 10. |
