Glasses structure

A glasses structure, in which a side facing a face of a wearer is defined as an inner surface and a side facing an outside is defined as an outer surface, the glasses structure comprising:

• an upper frame provided with an upper lens groove at a bottom edge thereof, wherein the upper frame is provided with a coupling seat downwardly at a middle section of the upper frame, the coupling seat has a slide groove, the slide groove is in a form of a long strip running from top to bottom through both sides of the coupling seat, the slide groove has a snap-in position and a release position, a notch is provided in a wall of the slide groove between the snap-in position and the release position, and the notch extends through the coupling seat;
• a lower frame provided with a lower lens groove at a top edge thereof, wherein the lower frame is provided with two extension arms upwardly at a middle section of the lower frame, a channel is provided between the two extension arms, a guide bar is coupled between two extension arms adjacent to a top of the channel, and the lower frame is provided with the guide bar separable from the notch in the upper frame into the slide groove and operable to move between the snap-in position and the release position;
• and
• a lens disposed between the upper frame and the lower frame, wherein a top edge of the lens is provided in the upper lens groove and a bottom edge of the lens is provided in the lower lens groove,
• wherein when the guide bar is operated to move to the snap-in position, the lower frame and the upper frame are relatively close to each other such that the upper frame and the lower frame clamp the lens;
• and when the guide bar is operated to move from the snap-in position to the release position, the lower frame and the upper frame are relatively far away from each other such that the lens is detached from the upper lens groove and the lower lens groove.