Flow control apparatus for flush valves of toilets

Abstract

A flow control apparatus for flush valves of toilets is installed between the water intake end and the water outflow valve of a flush valve. It aims to generate a constant water outflow quantity under fluctuating water pressure. The flow control apparatus includes a flow control valve which has a flexible valve casing with a valve diameter alterable responding to fluctuation of water pressure to allow water to pass through and a filter which may be integrated with or independent from the flow control valve for filtering water flowing through the water outflow valve.

1 . A flow control apparatus for a flush valve of a toilet, comprising: 
 a flow control valve having a flexible valve casing which has a valve opening with a diameter alterable responding to variations of water pressure; and    a filter for filtering intake water at one end of a water pipe.    
   
   
       2 . The flow control apparatus of  claim 1 , wherein the flow control valve and the filter are assembled in an integrated manner and installed between the flush valve and a water inlet tube of the toilet.  
   
   
       3 . The flow control apparatus of  claim 1 , wherein the flow control valve and the filter are separately installed between the flush valve and a water inlet tube of the toilet.  
   
   
       4 . The flow control apparatus of  claim 3 , wherein the filter is separately installed on a front section of the flush valve.  
   
   
       5 . The flow control apparatus of  claim 1 , wherein the flow control valve is separately installed on a rear section of the flush valve.  
   
   
       6 . The flow control apparatus of  claim 1 , wherein the flow control valve is separately installed on a front section of the flush valve.  
   
   
       7 . The flow control apparatus of  claim 1 , wherein the flow control valve includes a rigid pressure receiving element located on one side thereof.  
   
   
       8 . The flow control apparatus of  claim 7 , wherein the flow control valve is separately installed on a front section of the flush valve and the pressure receiving element faces water intake direction.  
   
   
       9 . The flow control apparatus of  claim 7 , wherein the flow control valve is separately installed on a rear section of the flush valve and the pressure receiving element faces water outflow direction.