Inner frame for door or window, skylight comprising the same and manufacturing method thereof

A method for manufacturing a skylight, the method comprising the following steps

• step S1, processing an outer profile, including cutting two ends of the outer profile, so that a plurality of outer profiles are configured to be spliced into an outer profile frame, an inner side surface of the outer profile frame is integrally formed with a first fixing piece;
• step S2, processing an inner profile, including cutting off a second fixing piece at a portion of a water baffle to be bent, and cutting a connecting portion at the portion of the water baffle to be bent, so that the connecting portion is configured to be spliced into a shape matched with an inner profile frame after bending the water baffle;
• step S3, shaping the inner profile frame, including bending the water baffle to make two ends of the water baffle abut against each other, and mounting a first seal on the water baffle;
• and
• step S4, assembling, including placing the inner profile frame on an operation table, placing a glass plate on the inner profile frame, and then inserting the outer profile from a side surface of the inner profile frame and the glass plate, so that the second fixing piece is snap-fitted into the first fixing piece.