Glasses with ventilative structure

A pair of glasses with a ventilated structure, with a side facing a wearer's face as a rear side and a side facing an outside as a front side, the pair of glasses comprising:

• an upper frame, provided with a pivot seat on each of two sides thereof, wherein a inserting seat is provided between pivot seats, the inserting seat is provided with an inserting groove with a downward notch, one sidewall of the inserting seat is provided with an adjusting unit, the adjusting unit is at least provided with a first adjusting hole, a first channel and a second adjusting hole from top to bottom, the first adjusting hole, the first channel and the second adjusting hole are connected to each other, and communicate with the inserting seat, a width of the first channel is smaller than widths of the first adjusting hole and the second adjusting hole, and the upper frame further comprises a first lens groove and a combination hole with an opening adjacent to the pivot seat to communicate with the first lens groove;
• a lens unit, wherein an upper end of the lens unit is connected to the first lens groove of the upper frame, and is provided with a plurality of spaced air-permeable holes;
• and
• a lower frame, provided with a joint section on each of two sides thereof, wherein the joint section enters the combination hole through the opening, and is coupled with the combination hole such that the two sides of the lower frame are operatively coupled or disassembled with respect to the upper frame, the lower frame includes an inserting section between joint sections to be embedded in the inserting groove, and the inserting section is further provided with a positioning convex part operatively embedded in the first adjust hole or the second adjusting hole of the adjusting unit to form a positioning,
• wherein when the positioning convex part of the lower frame is embedded in the first adjusting hole, the plurality of air-permeable holes of the lens unit are received in the first lens groove, and is shielded by the upper frame;
• when the positioning convex part of the inserting section elastically passes through the first channel with its material, and is inserted into the second adjusting hole, the combination hole of the upper frame is displaced relative to the lower frame such that the plurality of air-permeable holes of the lens unit are partially exposed outside the upper frame.