Fluid pumping device having a storage structure

A fluid pumping device having a storage structure, comprising:

• a fluid pumping device, including a barrel and a pumping mechanism, the barrel having an opening, the pumping mechanism being adapted for communicating an interior of the barrel and exterior for pumping fluid;
• a ring body, sleeved onto the fluid pumping device to surround the opening;
• a plurality of storage portions, arranged around the ring body, each of the storage portions being adapted for a workpiece to removably connected;
• wherein a plurality of protrusions are formed on an inner annular wall of the ring body, the protrusions are adapted for engaging with a plurality of recesses on the fluid pumping device;
• each of the storage portions has an insertion hole for the workpiece to be removably inserted through;
• a stepped face is radially formed in each of the insertion holes;
• each of the storage portions is a seat protrudedly formed on a periphery of the ring body, the seat is formed with one of the insertion holes;
• each of the storage portions has a shoulder portion around the insertion hole, the shoulder portion extends along a radial direction of the insertion hole;
• the shoulder portion is connected to the ring body and expands toward the ring body;
• the ring body is formed with a plurality of through holes, the through holes and the insertion holes are located at different positions along the radial direction of the ring body;
• an inner diameter of each of the insertion holes is different from an inner diameter of each of the through holes;
• the storage portions are arranged spacedly;
• the through holes are arranged spacedly;
• the ring body is formed with an expanded hole for being sleeved onto the barrel and a reduced hole.