Dispenser for adjusting rationing liquid

Abstract

A dispenser for adjusting rationing liquid includes a base having a space defined therein. A saddle head is movably sleeved on the base. The saddle head has a pathway defined therein and passing therethrough. The saddle head has a piston movably received in the space. The piston has an outer periphery abutting against an inner periphery of the space. A spring is sleeved on the base. An upper valve set is mounted in the pathway and a lower valve set is mounted in the space in the base.

1 . A dispenser for adjusting rationing liquid comprising:
 a base adapted to assemble with a bottle, the base having a space defined therein and passing therethrough;   a saddle head movably sleeved on the base, the saddle head having a pathway defined therein and passing therethrough, the saddle head having a piston movably received in the space, the piston having an outer periphery abutting against an inner periphery of the space, a spring sleeved on the base, the spring having two ends respectively abutting against the saddle head and the base for providing a restitution force;   a upper valve set mounted in the pathway and a lower valve set mounted in the space in the base, the upper valve set having a same structure with the lower valve set, each of the upper valve set and the lower valve set having an outer ring and an inner ring received in the outer ring, each outer ring having a plunger disposed therein and a plurality of ribs connected with the plunger and an inner periphery of the outer ring, each inner ring having a guiding path defined therein, the plunger of the outer ring being able to selectively seal the guiding path of the corresponding inner ring;   wherein when the saddle head is pressed, the piston presses the air in the space to push the plunger of the outer ring of the upper valve set such that the air is exhausted from the pathway in the saddle head, the plunger of the outer ring of the lower valve set pressed by the air to seal the guiding path of the inner ring;   when the saddle head is released and returned due to the restitution force of the spring, the piston of the upper valve set upwardly is moved such that the air pressure in the space is decreased to suck the outer ring of the lower valve set upwardly moved relative to the inner ring and to suck the liquid in the bottle flowing into the space via the guiding path in the inner ring of the lower valve set, in the meanwhile, the outer ring of the upper valve set downwardly sucked by the air pressure in the space such that the plunger is sealed the guiding path of the upper valve set;   when the saddle head is pressed again, the liquid in the space is able to be drained from the pathway;   when the saddle head is released again, the liquid in the bottle is sucked into the space again for providing rationing liquid.   
     
     
         2 . The dispenser for adjusting rationing liquid as claimed in  claim 1 , wherein the plunger has a hemispherical shaped structure for tightly plunging into the guiding path. 
     
     
         3 . The dispenser for adjusting rationing liquid as claimed in  claim 1 , wherein the saddle head has a seat mounted in interior thereof for receiving the upper valve set, the piston sleeved on a bottom end of the seat, the saddle head having a skirt downwardly formed thereon, the base located between the skirt and the seat. 
     
     
         4 . The dispenser for adjusting rationing liquid as claimed in  claim 1 , wherein each guiding path has a downwardly tapered structure, the part of each guiding path contacted with the plunger having a rounded structure for preventing the plunger from damaging. 
     
     
         5 . The dispenser for adjusting rationing liquid as claimed in  claim 1 , wherein the saddle head has a flange annularly and outwardly extending therefrom, the two ends of the spring respectively abutted against the base and the flange. 
     
     
         6 . The dispenser for adjusting rationing liquid as claimed in  claim 3 , wherein the base has a dove-tail flange annularly and outwardly extending therefrom, the skirt having a dove-tail flange annularly and inwardly extending therefrom for corresponding to the dove-tail flange of the base such that the dove-tail flange of the base and the dove-tail flange of the skirt are buckled to each other for preventing the saddle head detaching from the base.