Water flushing device for floor toilet

Abstract

A water flushing device includes a membrane engaged onto an upper portion of a housing for blocking the housing, a valve device for selectively blocking or opening a central opening of the membrane, and two or more gaskets selectively engaged into the membrane and having bores of different inner diameters for adjusting the water flushing speed through the membrane and the gaskets and for adjusting the water flushing from an outlet port of the housing to the floor toilet bowl. The membrane includes an inner peripheral rim and an outer peripheral rim each having a blade for reinforcing the membrane, and includes a number of plates engaged in the middle peripheral portion for further reinforcing the membrane.

1 . A water flushing device comprising:
 a housing including an inlet port for receiving water, and including an outlet port,   a membrane including an outer peripheral portion engaged onto an upper portion of said housing for blocking said upper portion of said housing, and including an opening formed therein, and including an orifice formed therein,   a valve device for selectively blocking or opening said opening of said membrane, and   a first gasket and at least one second gasket selectively engaged into said orifice of said membrane, and including a bore of different inner diameter for adjusting a water flushing speed through said orifice of said membrane and through said bores of said first and said at least one second gaskets.   
   
   
       2 . The water flushing device as claimed in  claim 1 , wherein said first and said at least one second gaskets each include two outer peripheral flanges for engaging with said membrane and for anchoring said first and said at least one second gaskets to said membrane. 
   
   
       3 . The water flushing device as claimed in  claim 1 , wherein said first and said at least one second gaskets each include an inclined surface formed in one of said outer peripheral flanges for engaging said first and said at least one second gaskets into said orifice of said membrane. 
   
   
       4 . The water flushing device as claimed in  claim 1 , wherein said membrane includes an inner peripheral rim and an outer peripheral rim for forming and defining a middle peripheral portion between said inner peripheral rim and said outer peripheral rim. 
   
   
       5 . The water flushing device as claimed in  claim 4 , wherein said membrane includes a plurality of bulges formed and located in said middle peripheral portion for reinforcing said membrane. 
   
   
       6 . The water flushing device as claimed in  claim 4 , wherein said membrane includes a blade engaged in said inner peripheral rim for reinforcing said membrane. 
   
   
       7 . The water flushing device as claimed in  claim 4 , wherein said membrane includes a blade engaged in said outer peripheral rim for reinforcing said membrane. 
   
   
       8 . The water flushing device as claimed in  claim 4 , wherein said membrane includes a plurality of plates engaged in said middle peripheral portion and equally spaced from each other for reinforcing said membrane. 
   
   
       9 . The water flushing device as claimed in  claim 4 , wherein a cover is engaged onto said upper portion of said housing and engaged with said outer peripheral rim of said membrane for forming a sealed compartment between said membrane and said cover. 
   
   
       10 . The water flushing device as claimed in  claim 4 , wherein a cap is engaged with said barrel and engaged with said inner peripheral rim of said membrane for securing said barrel to said membrane. 
   
   
       11 . The water flushing device as claimed in  claim 1 , wherein said housing includes a casing extended in the housing for forming an outer peripheral space between said housing and said casing, and for forming a bore within said casing, and said outer peripheral space formed and located between said housing and said casing is communicative with said inlet port for receiving the water from said inlet port. 
   
   
       12 . The water flushing device as claimed in  claim 11 , wherein a barrel is secured to said membrane and includes a bore communicative with said opening of said membrane, and said valve device includes a stem extended into said bore of said barrel. 
   
   
       13 . The water flushing device as claimed in  claim 12 , wherein an actuating device is attached and secured to said housing and includes an actuating rod extended into said housing and engageable with said stem of said valve device for selectively tilting said stem and said valve device relative to said barrel. 
   
   
       14 . The water flushing device as claimed in  claim 13 , wherein said actuating device includes an actuating lever extended out of said housing for operating said actuating rod to selectively tilt said stem and said valve device relative to said barrel.