Portable vacuumized container box

Abstract

A portable vacuumized container box which comprises a box body; the box body has a cavity and opens at its upper end; a top cover capable of fastening with the box body is provided at the upper end of the box body; air inlet hole and air outlet hole are disposed on the top cover; air inlet device is disposed on the air inlet hole; air outlet device is disposed on the air outlet hole; wherein the air outlet device comprises an air outlet piston, a piston fixing cover, and an air outlet valve coordinating with the air outlet piston to discharge air. The container box can be vacuumized by pulling up and pressing down the pull ring. The container box is very convenient for users to use, and it has good air discharging effect, good sealing ability and long service life.

What is claimed is: 
     
         1 . A portable vacuumized container box comprising a box body ( 1 ) having a cavity; the box body ( 1 ) opens at its upper end; a top cover ( 2 ) capable of fastening with the box body ( 1 ) is provided at the upper end of the box body ( 1 ); air inlet hole ( 4 ) and air outlet hole ( 3 ) are disposed on the top cover ( 2 );
 air inlet device is disposed on the air inlet hole ( 4 ); air outlet device is disposed on the air outlet hole ( 3 ); wherein the air outlet device comprises an air outlet piston ( 5 ), a piston fixing cover ( 6 ), and an air outlet valve ( 7 ) coordinating with the air outlet piston ( 5 ) to discharge air.   
     
     
         2 . The portable vacuumized container box as in  claim 1 , wherein a pull ring ( 8 ) is provided at an upper end of the air outlet piston ( 5 ) for easier application of force. 
     
     
         3 . The portable vacuumized container box as in  claim 2 , wherein the air outlet valve ( 7 ) is disposed at a bottom end of the air outlet hole ( 3 ). 
     
     
         4 . The portable vacuumized container box as in  claim 3 , wherein the air inlet device is an air inlet valve ( 9 ) disposed on the air inlet hole ( 4 ). 
     
     
         5 . The portable vacuumized container box as in  claim 4 , wherein the air outlet valve ( 7 ) and the air inlet valve ( 9 ) are both silicon valves. 
     
     
         6 . The portable vacuumized container box as in  claim 4 , wherein a piston sealing ring ( 10 ) is disposed on the air outlet piston ( 5 ). 
     
     
         7 . The portable vacuumized container box as in  claim 6 , wherein a recessed hole ( 11 ) is provided on the top cover ( 2 ); the piston fixing cover ( 6 ) is fitted in the recessed hole ( 11 ); the air outlet hole ( 3 ) and the air inlet hole ( 4 ) are disposed at a bottom end of the recessed hole ( 11 ). 
     
     
         8 . The portable vacuumized container box as in  claim 7 , wherein the pull ring ( 8 ) is connected with the upper end of the air outlet piston ( 5 ) via a pin. 
     
     
         9 . The portable vacuumized container box as in  claim 7 , wherein a seal ring ( 12 ) is provided at a position where the top cover ( 2 ) and the box body ( 1 ) are fastened with each other. 
     
     
         10 . The portable vacuumized container box as in  claim 7 , wherein peripheries of the top cover ( 2 ) are provided with fasteners ( 13 ) for fastening the box body ( 1 ).