Diaphragm pumping device

Abstract

A diaphragm pumping device includes a housing having a partition to form two chambers and two ports communicating with the respective chambers for receiving a fluid, one or more bladders attached to the housing and communicating with the chambers of the housing respectively, and an actuating device for actuating the bladder to force the fluid to flow between the chambers of the housing via the bladders. One or more check valves may be disposed between the bladder and the chambers of the housing to control the flowing direction of the fluid. The housing and the bladder may be acted as a silencer for reducing the noises that may be generated by various pumping devices.

1 . A diaphragm pumping device comprising: 
 a housing including a partition provided therein, to separate an inner portion of said housing into a first chamber and a second chamber, said housing including at least one first port provided thereon and communicating with said first chamber thereof, and including a second port provided thereon and communicating with said second chamber thereof, for receiving a fluid,    at least one bladder attached to said housing, and communicating with said first chamber and said second chamber of said housing, and    means for actuating said at least one bladder to force the fluid into or out of said second chamber of said housing via said second port, and then into or out of said first chamber of said housing, and to flow into or out through said at least one first port of said housing.    
   
   
       2 . The diaphragm pumping device as claimed in  claim 1 , wherein said housing includes a first check valve attached thereto and disposed between said at least one bladder and said first chamber of said housing, and arranged to allow the fluid to flow from said at least one bladder into said first chamber of said housing only, and to prevent the fluid from flowing backward from said first chamber of said housing into said at least one bladder, and includes a second check valve attached thereto and disposed between said at least one bladder and said second chamber of said housing, and arranged to allow the fluid to flow from said second chamber of said housing into said at least one bladder only, and to prevent the fluid from flowing backward from said at least one bladder into said second chamber of said housing.  
   
   
       3 . The diaphragm pumping device as claimed in  claim 2 , wherein said housing includes a first cavity and a second cavity formed therein and communicating with said first and said second chambers of said housing respectively, said first and said second check valves each includes a shank extended therefrom, for engaging through said housing, and each includes a ratchet catch provided on said shank for engaging with said housing, to anchor and secure said first and said second check valves to said housing, and each includes a blade provided on said shank for engaging with said housing, and for selectively blocking said first and said second cavities of said housing respectively.  
   
   
       4 . The diaphragm pumping device as claimed in  claim 3 , wherein said housing includes two annular depressions formed therein and communicating with said first and said second cavities of said housing respectively, to form two peripheral bulges which are located around said first and said second cavities of said housing respectively, and provided for engaging with said blades of said first and said second check valves respectively.  
   
   
       5 . The diaphragm pumping device as claimed in  claim 1 , wherein said actuating means includes an arm attached to said at least one bladder, and means for operating said arm to depress and to expand said at least one bladder, in order to force the fluid to flow to or from said second port of said housing toward said at least one first port of said housing.  
   
   
       6 . The diaphragm pumping device as claimed in  claim 5 , wherein said operating means includes a magnetic member attached to said arm, and an electromagnetic device to actuate said magnetic member to operate said arm.  
   
   
       7 . The diaphragm pumping device as claimed in  claim 6 , wherein said housing includes a retainer provided thereon, and said arm includes a first end pivotally coupled to said retainer of said housing, and a second end having said magnetic member attached thereto.  
   
   
       8 . The diaphragm pumping device as claimed in  claim 1  further comprising an outer receptacle, and a container disposed in said outer receptacle, to support said housing in said outer receptacle.  
   
   
       9 . The diaphragm pumping device as claimed in  claim 8 , wherein said container includes at least one cushioning member disposed between said container and said outer receptacle, to cushion said container.  
   
   
       10 . A silencer comprising: 
 a housing including a partition provided therein, to separate an inner portion of said housing into a first chamber and a second chamber, said housing including at least one first port provided thereon and communicating with said first chamber thereof, and including a second port provided thereon and communicating with    said second chamber thereof, for receiving a fluid, said housing including a casing, said partition being extended from said casing to have said casing communicated with said first and said second chambers of said housing, and said casing including a first cavity and a second cavity formed therein and communicating with said first and said second chambers of said housing respectively, and    at least one bladder attached to said casing, and including a compartment formed therein and arranged between said at least one bladder and said casing, and communicating with said first and said second chambers of said housing, for allowing the fluid to flow between said first and said second chambers of said housing, via said compartment of said at least one bladder.    
   
   
       11 . The diaphragm pumping device as claimed in  claim 10 , wherein said casing includes two holes located in different side of said partition and communicating with said first and said second chambers of said housing respectively, and first and said second cavities are arranged around said holes of said casing respectively.  
   
   
       12 . The diaphragm pumping device as claimed in  claim 10 , wherein said housing includes two annular depressions formed therein and communicating with said first and said second cavities of said housing respectively, to form two peripheral bulges which are located around said first and said second cavities of said housing respectively.