A PFS limit structure suitable for self-medication device

Abstract

The present invention relates to a PFS limiting structure suitable for a self-medication device, comprising a device housing, a PFS housing arranged in the device housing, a PFS component arranged in the PFS housing, a plurality of limiting components arranged inside the lower end of the device housing, the outer edge of the lower end of the PFS housing contacts the limiting components, a plurality of extrusion components are arranged on the inner wall of the lower end of the PFS housing, the outer wall of the PFS component contacts the extrusion component, and a deformation notch is arranged on the PFS housing. Thus, through the existence of the limiting components and the extrusion components, an effective "interlocking" combination between the device housing, the PFS housing, and the PFS component can be achieved, and there will be no shaking in the combination due to manufacturing tolerances, and better integrity. The structure is simple, and the current conventional self-medication device can be remodeled and modified, and the implementation cost is low. It can meet the effective stress transmission during the combination period, and will not cause abnormal deformation due to the local force layout.