Patent ID: 8360259

Claim:
An automatic opening-and-closing discharging structure for a loose powder jar, comprising a packing jar body for storing a powder material and a jar cover thereof, wherein: a group of overlapped upper and lower trough plates respectively having a discharging porous face is disposed at an edge of a filling port of the jar body; concave positioning notches are uniformly disposed at an inner edge of the filling port on a top of the jar body, so that a fixed trough plate is placed, inserted and positioned, wherein concave long and short arc grooves are respectively disposed at an external perimeter of a discharging porous face on a central plate face of the fixed trough plate, and elastic member is disposed in the long arc groove; at positions corresponding to the long and short arc grooves on a bottom of a movable trough plate overlapped above the fixed trough plate, convex inserted columns are respectively inserted into the arc grooves to form an overlapped rotation guide, wherein, when rotating, the inserted column inserted in the long arc groove rests against and pushes the elastic member to perform an operation of compression and contraction for energy storage, so that convex points arranged at intervals above a top-edge ring plate of the movable trough plate can be engaged and jointly rotated with the corresponding circularly-arranged convex points on the jar cover; and when the jar cover is screwed, the movable trough plate is rotated simultaneously, so that the upper and lower porous faces on the overlapped trough plates are dislocated and disconnected to suspend the discharging operation, and when the jar cover is opened, through an elastic recovery of the elastic member in the long arc groove, a hole opening of the porous face of the movable trough plate returns to the overlapped connection position, so that the filled powder material is discharged smoothly for the convenience of makeup, and thus the discharging of the powder jar is performed based on a makeup demand, thereby forming a safe operation structure capable of being automatically opened and closed.