| 摘要 |
PURPOSE: A water-saving type bathtub is provided to control the water level of a bathtub at a regular level automatically with an operating valve operated by a buoyancy room installed to one side of the bathtub. CONSTITUTION: A water-saving bathtub(1) comprises: a buoyancy room(37) provided with two floats(6) connected to the lower end of seesawing level bars and a water supplying/draining hole connected to a sewage hole(35) under the bathtub; a water passing/intercepting valve(V) provided with a through hole(42) bored to coincide with the water supplying/draining hole of the buoyancy room, a drainage hole(44) at the center of an upper head part(43) and a float(45) sinking and floating by waterpower; a float height adjusting unit(38) covered by an inner cover(18) and an outer cover(17) screwed to a projected ring(16) under a water outlet body, coupled to the top of the buoyancy room(37) with vertical height adjusting bolts(13,13') and a nut(12) to couple both top ends of the buoyancy room to a lower pin formed on the lower part of the lower height adjusting bolt(13') to be rotated rightward and leftward; an automatic water level controlling valve unit(15), whose top is connected in the water outlet body of the inner top of the lower projected ring(16) by a screw thread(27), provided with a valve groove(22) at the upper center, an operating valve(23) of the top of a vertical valve shaft(19) connected with the upper height adjusting bolt(13) installed to be operated on the valve groove by a ring(14), and a secondary water discharge way(21) between supporting shafts(20) on the horizontal center; a main outlet operating unit(40) coupled to the corresponding location to the valve unit of the water outlet body by a screw thread(28) and provided with a projected pin(30) reciprocating along a pin groove(31) in a vertical hole(39) of a handle body(29) having the L-shaped inclined pin groove and a compressive valve shaft(32) attached with a compressive valve(33); and buoyancy room covers(46) at the top of the floats(6) on both sides of the buoyancy room(37).
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