Patent ID: 6219855
Filing Date: 2001-04-24
Classification: E03D

Abstract:
A toilet bowl in combination with a pressurized flush tank, said toilet bowl being connected to said pressurized flush tank by way of a water pipe; wherein:said pressurized flush tank has a float piston limitedly movable up and down in responseto variation of water level in said flush tank;a spring disposed on top of said float piston is compressible and extendible in response to upward and downward movement of said float piston as a result of variation of water level in said flush tank whereby pressure can be produced on water in the flush tank when said water is discharged out of said flush tank by said float piston pressurized by said compressed spring;a positioning plate disposed at a bottom side of said float piston;a control valve set is engaged with said flush tank for controlling input of water into said flush tank;said control valve set including a valve unit;said valve unit has a tubular case in which a control piston is movable up and down and a water outlet is defined on a wall of said valve unit;said valve unit communicates with a water source and said control piston has a water discharge tunnel;a spring is disposed on top of said control piston so as to make said control piston retractably movable up and down;said control piston is connected to a float which is movably housed in said tank by way of a flexible wire so as to make said control piston move in accordance with water level in said flush tank;water flows into said flush tank when said control piston moves to such a position that said water discharge tunnel of said control piston comes into alignment with both said water source and said water outlet of said valve unit;a seal cap disposed at a bottom of said flush tank is in closing and opening engagement with a discharge pipe head;a control handle pivotal fixed to said flush tank is connected to said seal cap so as to permit said seal cap to open when said control handle is activated;said seal cap can be closed by said positioning plate fixed to said float piston when water level in said flush tank is dropped to such an extent that said float piston moves down along with dropped water level to allow said positioning plate to touch said seal cap pivoted to open by said control handle;wherebysaid toilet bowl has a downwardly extended flushing slope from a periphery thereof and has a water collection area defined at a bottom end of said flushing slope; a plurality of flush holes are disposed on said periphery of said toilet bowl; said flush holes communicate with a water inlet path which is connected to said flush tank; a goose neck shaped waste discharge path in connection to said water collection area; a vacuum chamber is defined at a sharp turn of said goose neck shaped waste discharge path adjacent to said water collection area;a first water flushing passage communicating with said water inlet path at one end communicates with said vacuum chamber of said waste discharge path at another end; a second water flushing passage disposed under said flushing slope communicates with said water collection area;whereby a siphon state can be produced in said vacuum chamber of said goose neck shaped waste discharge path when water is flushed out of said first and second water flushing passage and said flush holes of said toilet bowl to effectively speed up the discharge of waste and filth water accumulated in said water collection area of said toilet bowl.