Double-piston mechanism of an emulsion squeeze head

Abstract

The present invention provides a double-piston mechanism of an emulsion squeeze head, having an actuating syringe and a suction pipe. A top of the suction pipe is connected to a pressing head, while an elastic resetter is arranged between the bottom of the suction pipe and the bottom wall of the actuating groove. The suction pipe is also provided with a piston set. The piston set includes a first piston, with a first connecting portion and a first flange, and a second piston. The first connecting portion is assembled onto the suction pipe, and the first flange is abutted on the wall of the actuating groove. The second piston, placed at one end of the first piston, includes a second connecting portion and a second flange. The second connecting portion is assembled onto the first piston, and the second flange is abutted on the wall of the actuating groove.

1 . A double-piston mechanism of an emulsion squeeze head, said emulsion squeeze head being comprised of an actuating syringe, having an actuating groove with a bottom wall, and a suction pipe being housed in said actuating groove, said suction pipe having a top connected to a pressing head and a bottom with an elastic resetter, said elastic resetter being arranged between the bottom of the suction pipe and the bottom wall of the actuating groove, said actuating groove having a bottom with a stopper placed therein, the double-piston mechanism being a piston set and comprising:
 a first piston, having a first connecting portion and a first flange, said first connecting portion being assembled onto said suction pipe, said first flange abutting a wall of said actuating groove; and   a second piston, being placed at one end of said first piston, and comprising a second connecting portion and a second flange, said second connecting portion being assembled onto said first piston, said second flange abutting a wall of said actuating groove.   
   
   
       2 . The double-piston mechanism defined in  claim 1 , wherein said first piston combines with said second piston, forming a first tube at one end of said first connecting portion, first groove being formed at the other end of said first connecting portion, forming a second tube at one end of said second connecting portion, a second groove being formed at the other end of the second connecting portion, said first tube being inserted into said second groove, said second tube being inserted into said first groove, said first piston being mated with said second piston. 
   
   
       3 . The double-piston mechanism defined in  claim 2 , wherein said first tube of said first piston and said second tube of said second piston have different lengths. 
   
   
       4 . The double-piston mechanism defined in  claim 1 , wherein said first piston and said second piston are prefabricated.