US 9,809,963 B2
Leak-proof water valve of toilet tank
So-Mei Huang, Tai Ping (TW)
Filed by So-Mei Huang, Tai Ping (TW)
Filed on Mar. 11, 2016, as Appl. No. 15/67,601.
Prior Publication US 2017/0260727 A1, Sep. 14, 2017
Int. Cl. F16K 21/18 (2006.01); F16K 31/20 (2006.01); F16K 31/24 (2006.01); F16K 31/26 (2006.01); F16K 31/34 (2006.01); E03D 1/00 (2006.01); E03D 1/32 (2006.01); E03D 1/33 (2006.01); E03D 1/34 (2006.01); E03D 1/36 (2006.01); G05D 9/02 (2006.01)
CPC E03D 1/36 (2013.01) [E03D 1/00 (2013.01); E03D 1/32 (2013.01); E03D 1/33 (2013.01); E03D 1/34 (2013.01); F16K 21/18 (2013.01); F16K 31/20 (2013.01); F16K 31/24 (2013.01); F16K 31/26 (2013.01); F16K 31/34 (2013.01); G05D 9/02 (2013.01); Y10T 137/7439 (2015.04); Y10T 137/7462 (2015.04); Y10T 137/7472 (2015.04); Y10T 137/7494 (2015.04)] 7 Claims
OG exemplary drawing
 
1. A leak-proof water valve of a toilet tank, the leak-proof water valve including: a water inner tube, an outer tube group and a buoyant housing, wherein:
the water inner tube comprises an engaging bolt and multiple outlets are set on its lower side, the engaging bolt is set on a bottom side of the toilet tank and a locking nut is used to fasten;
the outer tube group consists of an outer tube, a cover, a connecting rod, an adjustment rod, a sealing plug and an elastic element; the outer tube is set on an outer peripheral edge of the water inner tube; a water control base and an outlet pipe are set on an upper end of the outer tube; a first arm, a second arm and an outlet hole are set on the water control base; the outlet hole is communicated with an outlet through pipe set inside the outer tube; a first positioning hole and a first shaft hole are set on the first arm; a second shaft hole is set on the second arm; the first shaft hole is corresponded to the second shaft hole; the cover covers a top of the water control base; a second positioning hole, two corresponding supporting shafts and two hook arms are set on an inner side of the connecting rod; a notch is set between the two hook arms; the two corresponding supporting shafts are set into the first and second shaft holes respectively; a holder is set on an outer side of the connecting rod; a sleeve segment set on an upper end of the adjustment rod is provided for the holder to hold; an adjustment segment is set on a lower section of the adjustment rod; a transverse rod is set on an upper end of the sealing plug; the transverse rod is clamped by the two hook arms; at a lower section of the sealing plug is a cotter; the cotter is inserted between the outlet hole and a through hole of a pad; the sealing plug is provided to move up and down to control operations of the outlet through pipe; a first pin of the elastic element is fixed to the first positioning hole; a second pin of the elastic element is fixed to the second positioning hole;
the buoyant housing comprises a punched hole set thereon for insertion of the outer tube, so that the buoyant housing could be moved up and down on a peripheral edge of the outer tube, a preloading room and a loading room are set on a top of the buoyant housing; a position of the preloading room is higher than the loading room; a water hole is set between the preloading room and the loading room; a buoyant room is set on a bottom side of the buoyant housing; two corresponding third arms and a first drain hole are set outside of a peripheral edge of the buoyant housing corresponding to the loading room; a shaft hole is set on at least one of the two corresponding third arms; the shaft hole is provided for setting a supporting shaft of a positioning collar, the positioning collar is provided for insertion of the adjustment segment of the adjustment rod.