Skin patch drug infusion device

A skin patch drug infusion device, comprising:

• an infusion mechanism module, wherein the infusion mechanism module includes a circuit module, the circuit module includes:
• a circuit board or a three-dimensional circuit;
• a driving unit, for pushing a driving wheel of the infusion mechanism module to implement drug infusion;
• a conductive tower-spring, including a middle part with a small diameter and two end parts with large diameters in an axial direction, for fixing the driving unit and electrically connecting the driving unit and a connection end on the circuit board or the three-dimensional circuit;
• a control mechanism module, electrically connected with the infusion mechanism module;
• and
• an adhesive patch, for attaching the infusion mechanism module and the control mechanism module to a skin surface,
• wherein the infusion mechanism module further includes a frame, the frame is provided with a rotation shaft, the driving unit is sleeved on the rotation shaft and rotated around the rotation shaft, the diameter of the middle part of the conductive tower-spring remains the same, the diameters of the two end parts gradually expand in a horn-like shape, and the middle part of the conductive tower-spring is interference fit with the rotating shaft.