Cylinder assembly and dispenser pump using the same

Abstract

The cylinder assembly includes a first body, a second body and a coupling mechanism. The first body is of a tubular shape and has a valve set at a bottom end thereof. The valve set includes a valve, an elastomer and a passage. The second body has a ring with an outline fitting the valve. The coupling mechanism includes a first coupling piece disposed on the first body and a second coupling piece disposed on the second body and is used for detachably coupling the first and second bodies. The valve is located in an aperture of the ring, the elastomer flexibly supports the valve to abut against the ring and seal up the aperture or retracts to open the aperture for allowing liquid to flow into the first body through the passage.

What is claimed is: 
     
         1 . A cylinder assembly comprising:
 a first body, being of a tubular shape, having a valve set at a bottom end thereof, and the valve set comprising a valve, an elastomer and a passage;   a second body, having a ring with an outline fitting the valve;   a coupling mechanism, comprising a first coupling piece disposed on the first body and a second coupling piece disposed on the second body, and being used for detachably coupling the first and second bodies;   wherein the valve is located in an aperture of the ring, the elastomer flexibly supports the valve to abut against the ring and seal up the aperture or retracts to open the aperture for allowing liquid to flow into the first body through the passage.   
     
     
         2 . The cylinder assembly of  claim 1 , wherein the first and second coupling pieces are coupled by screwing. 
     
     
         3 . The cylinder assembly of  claim 1 , wherein the coupling mechanism further comprises an airtight ring between the first and second coupling pieces. 
     
     
         4 . The cylinder assembly of  claim 1 , wherein a cross section of the valve is geometric or irregular in shape. 
     
     
         5 . The cylinder assembly of  claim 1 , wherein a cross section of the valve is arc-shaped, polygonal or semicircular in shape. 
     
     
         6 . The cylinder assembly of  claim 1 , wherein a cross section of the elastomer is geometric or irregular in shape. 
     
     
         7 . The cylinder assembly of  claim 1 , wherein a cross section of the elastomer is arc-shaped, polygonal or semicircular in shape. 
     
     
         8 . The cylinder assembly of  claim 1 , wherein the elastomer is located in the passage without closing. 
     
     
         9 . The cylinder assembly of  claim 1 , wherein the ring is formed with a guiding slant. 
     
     
         10 . The cylinder assembly of  claim 1 , wherein the ring is formed into a funnel shape. 
     
     
         11 . A dispenser pump comprising:
 a cylinder assembly, comprising:
 a first body, being of a tubular shape, having a valve set at a bottom end thereof, and the valve set comprising a valve, an elastomer and a passage; 
 a second body, having a ring with an outline fitting the valve; 
 a coupling mechanism, comprising a first coupling piece disposed on the first body and a second coupling piece disposed on the second body, and being used for detachably coupling the first and second bodies; 
   wherein the valve is located in an aperture of the ring, the elastomer flexibly supports the valve to abut against the ring and seal up the aperture or retracts to open the aperture for allowing liquid to flow into the first body through the passage; and   a pump assembly for generating a siphon effect to drain a liquid, disposed in the cylinder assembly.   
     
     
         12 . The dispenser pump of  claim 11 , wherein the first and second coupling pieces are coupled by screwing. 
     
     
         13 . The dispenser pump of  claim 11 , wherein the coupling mechanism further comprises an airtight ring between the first and second coupling pieces. 
     
     
         14 . The dispenser pump of  claim 11 , wherein a cross section of the valve is geometric or irregular in shape. 
     
     
         15 . The dispenser pump of  claim 11 , wherein a cross section of the valve is arc-shaped, polygonal or semicircular in shape. 
     
     
         16 . The dispenser pump of  claim 11 , wherein a cross section of the elastomer is geometric or irregular in shape. 
     
     
         17 . The dispenser pump of  claim 11 , wherein a cross section of the elastomer is arc-shaped, polygonal or semicircular in shape. 
     
     
         18 . The dispenser pump of  claim 11 , wherein the elastomer is located in the passage without closing. 
     
     
         19 . The dispenser pump of  claim 11 , wherein the ring is formed with a guiding slant. 
     
     
         20 . The dispenser pump of  claim 11 , wherein the ring is formed into a funnel shape.