Sensor-type flushing system for a toilet tank

Abstract

A sensor-type flushing system for a toilet tank includes a pressured tank installed in a toilet tank, both a switch valve and an electromagnetic valve connected to the pressured tank. The pressure tank is provided with a drain valve so that pressured tater stored in the pressured tank may be made to flow out of the drain valve to flush pressed water in the toilet bawl by handling manually an operational device set on an outer wall of the toilet tank. Further, the operational device is provided with a sensor, which senses a human body and emits and receives signals to electrically open the electromagnetic valve so as to open the drain valve for flushing pressured water into the toilet bawl. Thus the sensor-type flushing system has two functions of manual and automatic flushing.

1 . A sensor-type flushing system for a toilet water tank, said system comprising:
 A toilet tank;   A pressure tank installed in said toilet tank, storing pressured water in an interior hollow space, provided with a drain valve for being opened for flushing water in a toilet bawl;   A switch valve positioned between said toilet tank and said pressured tank, possible to be opened for said pressured water stored in said pressured water tank to flow out to said drain valve so that said drain valve may be pushed open by said pressured water;   An electromagnetic valve positioned between said toilet tank and said pressured tank, possible to be opened to permit said pressured water coming from said pressured water tank to flow to said drain valve so that said drain valve may be pushed open by said pressured water;   An operational device installed on an outer front wall of said toilet tank, possible to be pressed elastically to actuate said switch valve to open;   A sensor set in said operational device for emitting and receiving signals toward an outer side of said operational device in a certain direction so that said sensor may actuate said electromagnetic valve to open in case said sensor senses a human body leaving.   
   
   
       2 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said operational device is a swingable grip. 
   
   
       3 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said grip is provided with a front cap, a rear cap and press grip, a hollow space is defined by said front cap and said rear cap combined together for receiving said sensor therein, and said front cap has a slot in an front wall for signals to pass through and a insert rod extending backward, said press grip located in said switch valve and inserting mutually with said insert rod of said front cap and pressed together with said front cap in case said front cap is pressed for opening said switch valve. 
   
   
       4 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said operational device is further provided with at least a press member to be elastically pressed for being compressed for opening said switch valve. 
   
   
       5 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said operational device is provided with a shell, which is composed of a front cap and a rear cap, and a hollow space is defined by said front cap and said rear cap combined together for receiving said sensor therein, said front cap provided with a slot for signals to pass through and a hole beside said slot for an outer end of said press member to expose out thereof. 
   
   
       6 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said sensor further has a sensing circuit, a processing circuit electrically connected with said sensing circuit and a driving circuit, so said sensor emits and receives signals through said sensing circuit, and said driving circuit drives said electromagnetic valve to open. 
   
   
       7 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said power circuit gets power from an AC power source. 
   
   
       8 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said power circuit gets power from a battery. 
   
   
       9 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said power circuit gets power from a generator. 
   
   
       10 . The sensor-type flushing system for a toilet water tank as claimed in  claim 1 , wherein said power circuit is installed in a control case, which is positioned between said toilet tank and said pressured tank. 
   
   
       11 . The sensor-type flushing system for a toilet water tank as claimed in  claim 8 , wherein said battery is placed in said control case, which is positioned between said toilet tank and said pressured tank. 
   
   
       12 . The sensor-type flushing system for a toilet water tank as claimed in  claim 9 , said generator is set in a preset portion of a water inlet route, generating power by inner pressure of said water inlet route.