| 摘要 |
For use in a toilet flush tank having a flush discharge opening at the bottom which is normally closed by a discharge valve (26) having an air chamber (26a) therein, an attachment including an air passage (35) for venting the air chamber and a water level responsive valve means (36, 37, 37', 49, 49') normally closing the air passage when the water within the tank is above a predetermined height and venting the air chamber when the water in the tank falls to a predetermined level, so that when the discharge valve is lifted and buoyed by the air within the chamber thereof during the discharge of water from the tank, the discharge valve will be permitted to reseat as soon as the water level responsive valve means vents the air chamber. |
