Ink cartridge refilling device

Abstract

The present invention provides an ink cartridge refilling device, which comprises an ink container used for storing ink, an air inlet channel communicated with the ink container and introduced outside air into the ink container, a suction channel communicated with the ink cartridge and connected with an aspirator to suck air in the ink cartridge, an ink injection channel communicated with an ink injection opening of the ink cartridge and formed on the ink container and a re-suction channel which is communicated with an ink outlet of the ink cartridge and connected with the aspirator to suck ink at the ink outlet after the ink cartridge is refilled. The ink cartridge refilling device has the advantage that: air bubbles can be prevented from being attached to the upper part of a piezoelectric transducer near the ink outlet.

1 . An ink cartridge refilling device, comprising:
 an ink container, in which said ink container used for storing ink to be refilled into an ink cartridge; and an ink injection channel communicated with an ink injection opening arranged on said ink container;   an air inlet channel, in which said air inlet channel communicated with said ink container and used for introducing outside air into said ink container; and   a suction channel, in which said suction channel communicated with said ink cartridge and connected with an aspirator to suck air in said ink cartridge.   Said ink cartridge refilling device also comprising:   a re-suction channel, in which said re-suction channel communicated with an ink outlet of said ink cartridge and connected with said aspirator to suck ink at said ink outlet after said ink cartridge is refilled.   
     
     
         2 . The ink cartridge refilling device according to  claim 1 , wherein one end of said suction channel is directly connected with said ink outlet of said ink cartridge. 
     
     
         3 . The ink cartridge refilling device according to  claim 2 , wherein said air inlet channel and said suction channel are coaxially arranged. 
     
     
         4 . The ink cartridge refilling device according to  claim 3 , wherein said ink cartridge refilling device also comprises:
 a valve component which is arranged on said air inlet channel and used for controlling the on-off of said air inlet channel.   
     
     
         5 . The ink cartridge refilling device according to  claim 4 , wherein said valve component comprises:
 a valve seat, in which said valve seat is arranged on a sucking opening of said suction channel;   an elastic component, in which said elastic component is sleeved on the outerwall of said suction channel; and   a seal ring, in which said seal ring is arranged between said valve seat and said elastic component; and one end of said seal ring is engaged with said elastic component and the other end of said seal ring is engaged with said valve seat.   
     
     
         6 . The ink cartridge refilling device according to  claim 5 , wherein said valve component also comprises a bushing having:
 an engagement section, in which said engagement section is engaged with said seal ring, and the diameter of said engagement section is equal to that of said seal ring; and   a sliding section, in which said sliding section is connected with said engagement section; the diameter of said sliding section is more than that of said suction channel; and said sliding section is used for sliding along the outerwall of said suction channel.   
     
     
         7 . The ink cartridge refilling device according to  claim 1 , wherein a sealing component is arranged on the end part of said ink injection channel and comprises:
 a rubber plug; and   a sleeve connected with said rubber plug.   
     
     
         8 . The ink cartridge refilling device according to  claim 1 , wherein said ink cartridge refilling device also comprises:
 a positioning component which is connected with said ink container and used for fixing said ink cartridge.   
     
     
         9 . The ink cartridge refilling device according to  claim 8 , wherein said positioning component comprises:
 a holding section formed on the outerwall of said positioning component.   
     
     
         10 . The ink cartridge refilling device according to  claim 1 , wherein said air inlet channel and said suction channel are separately arranged.