Direct flushing type auto-flushing device for toilets

Abstract

A direct water typed auto-flushing device for toilets is disclosed. The device includes a flush valve, which guides washing water from a water supply to a bidet tank and an actuating unit, and discharges the washing water into a toilet so as to dispose of excrement therein. A sensor is mounted to the underside of a bidet seat, and determines whether excrement is urine or feces according to a user sensing time. An actuating unit opens a solenoid valve and drains washing water, stored in a pressure chamber of the flush valve, through a drain hose into the toilet, thus disposing of excrement in the toilet using washing water fed from a water supply, according to the result of detection by the sensor. The device simplifies a construction by which washing water is fed through the water supply to the bidet tank and the pressure chamber.

1 . A direct water typed auto-flushing device for toilets, comprising:
 a flush valve for guiding washing water from a water supply to a water tank of a bidet and an actuating unit, and discharging the washing water into a toilet so as to dispose of excrement in the toilet;   a sensor mounted to a underside of a seat of the bidet, and determining whether excrement is feces or urine with reference to a user sensing time; and   the actuating unit for opening a solenoid valve so that washing water stored in a pressure chamber of the flush valve is drained through a drain hose into the toilet, thus disposing of excrement in the toilet using the washing water fed from the water supply according to a kind of excrement detected by the sensor.   
     
     
         2 . The direct water typed auto-flushing device according to  claim 1 , wherein the flush valve comprises:
 a supply guide unit, mounted to an upper portion of a valve body which accommodates the piston such that it is moved up and down by pressure of washing water fed from the water supply, thus adjusting a vertical moving distance of the piston, and supplying the washing water to the water tank of the bidet and the actuating unit, respectively;   supply hoses for coupling the supply guide unit to the water tank of the bidet and the actuating unit, respectively;   a protective unit seated on an upper portion of the supply guide unit, and covering and protecting ends of the supply hoses; and   a fastening member for fastening the protective unit to the supply guide unit.   
     
     
         3 . The direct water typed auto-flushing device according to  claim 2 , wherein the supply guide unit comprises:
 a guide body seated on an upper end of the valve body;   hose insert holes formed in the guide body so that the supply hoses are mounted to the corresponding hose insert holes; and   a fastening hole formed in a center of the guide body.   
     
     
         4 . The direct water typed auto-flushing device according to  claim 3 , further comprising:
 a height adjusting member fastened to a lower end of the fastening hole, and adjusting a vertical moving height of the piston.   
     
     
         5 . The direct water typed auto-flushing device according to  claim 2 , wherein the protective unit comprises:
 a protective body open at a bottom thereof to accommodate the supply guide unit;   a fastening hole formed in an upper surface of the protective body along the same line as the fastening hole in the supply guide unit; and   a protective hole formed in an outer circumference of the protective body, and receiving and protecting ends of the supply hoses.   
     
     
         6 . The direct water typed auto-flushing device according to  claim 2 , further comprising:
 a circular filter net, mounted to accommodate an inlet of the piston, and filtering contaminants from washing water fed into the inlet.   
     
     
         7 . The direct water typed auto-flushing device according to  claim 2 , further comprising:
 a fastening part for fastening the supply guide unit to the valve body.   
     
     
         8 . The direct water typed auto-flushing device according to  claim 7 , wherein the fastening part comprises:
 an external threaded part provided on an outer circumference of the upper end of the valve body; and   an internal threaded part provided on an inner circumference of a lower end of the supply guide unit.   
     
     
         9 . The direct water typed auto-flushing device according to  claim 7 , wherein the fastening part comprises:
 an internal threaded part provided on an inner circumference of the upper end of the valve body; and   an external threaded part provided on an outer circumference of a lower end of the supply guide unit.   
     
     
         10 . The direct water typed auto-flushing device according to  claim 2 , further comprising:
 a rotation preventing part. for preventing rotation of the protective unit which is seated on the upper portion of the supply guide unit.   
     
     
         11 . The direct water typed auto-flushing device according to  claim 10 , wherein the rotation preventing part comprises:
 rotation preventing grooves radially formed on an outer circumference of the guide body of the supply guide unit; and   at least one rotation preventing protrusion provided on an inner circumference of the protective body of the protective unit, and engaging with an associated rotation preventing groove.   
     
     
         12 . The direct water typed auto-flushing device according to  claim 2 , further comprising:
 a covering part for isolating the fastening member, which fastens the protective unit to the supply guide unit, from an exterior.   
     
     
         13 . The direct water typed auto-flushing device according to  claim 12 , wherein the covering part comprises:
 a depression formed in the upper surface of the protective body in such a way as to be concentric with the fastening hole in the protective unit; and   a covering piece detachably installed in the depression.   
     
     
         14 . The direct water typed auto-flushing device according to  claim 2 , further comprising:
 a play prevention unit for holding the supply hoses inserted into the hose insert holes in the supply guide unit so as to prevent movement of the supply hoses.   
     
     
         15 . The direct water typed auto-flushing device according to  claim 14 , wherein the play prevention unit comprises:
 a play prevention piece for coupling ends of the supply hoses, inserted into the hose insert holes, to respective play prevention holes, thus preventing the movement of the supply hoses; and   a play prevention ring for accommodating the supply hoses coupled to the play prevention holes in the play prevention piece, and coupling the supply hoses to the protective hole in the protective unit.   
     
     
         16 . The direct water typed auto-flushing device according to  claim 1 , wherein the actuating unit controls an opening time thereof so as to discharge a proper amount of washing water corresponding to a kind of excrement, which is determined by the sensor. 
     
     
         17 . A direct water typed auto-flushing device for toilets, having a flush valve comprising:
 a supply guide unit mounted to an upper portion of a valve body which accommodates a piston such that it is moved up and down by pressure of washing water fed from a water supply, thus adjusting a vertical moving distance of the piston, and supplying the washing water to a water tank of a bidet and an actuating unit, respectively;   supply hoses for coupling the supply guide unit to the water tank of the bidet and the actuating unit, respectively;   a protective unit seated on an upper portion of the supply guide unit, and covering and protecting ends of the supply hoses;   a fastening member for fastening the protective unit to the supply guide unit;   a fastening part for fastening the supply guide unit to the valve body;   a rotation preventing part for preventing rotation of the protective unit which is seated on the upper portion of the supply guide unit; and   a play prevention unit for holding the supply hoses inserted into the hose insert holes in the supply guide unit so as to prevent movement of the supply hoses.