The utility model provides a lens assembly structure of a protective mask,The system consists of a brimA lens and a tie,The front edge of the brim is provided with a plurality of fixing elements,Two sides of the front edge of the brim are respectively provided with a first group of connecting holes and a screw connecting piece,Two sides of the top end of the lens are respectively provided with a first screw connecting hole corresponding to each of the first group of connecting holes, and each of the screw connecting pieces is respectively provided with a second screw connecting hole corresponding to the first group of connecting holes,When the lens is embedded in the fixing elements,A pair of screws are used to pierce each of the first group of connecting holesEach of the first screw connecting holes and each of the second screw connecting holes locks the lens.In this way, the assembly method of installing the screws from the two sides of the front edge of the brim is beneficial to simplify the operation difficulty and smooth the assembly procedure, so as to effectively improve the assembly speed.本新型提供一種防護面罩之鏡片組裝結構，係包含一帽簷、一鏡片及一繫帶，該帽簷前緣內設有複數個固定元件，該帽簷前緣兩側分別開設有一第一組接孔及一螺接片，該鏡片頂端兩側分別對應各該第一組接孔開設有一第一螺接孔及各該螺接片分別對應該第一組接孔開設有一第二螺接孔，當該鏡片嵌入該等固定元件後，該帽簷利用一對螺絲分別穿置各該第一組接孔、各該第一螺接孔及各該第二螺接孔而鎖固該鏡片。如此，由該帽簷前緣兩側表面朝內裝設各該螺絲之組裝手法即有利簡化作業困難度並平順組裝程序，使實現有效提升組裝速度之目的。
