Connecting structure of middle beam, lens pile and rimless lens

The utility model discloses a connecting structure of a middle beam, a lens pile and a rimless lens, two holes are formed in the middle beam and the lens pile in a penetrating manner, the hole, close to the edge of the lens, of the hole site is hexagonal and is matched and fixed with a hexagonal turning part, and the hole, close to the center of the lens, of the hole site is hexagonal outside and round inside and is matched and fixed with a hexagonal screw. The hexagonal turning piece and the two-hole connecting piece are welded together and fixedly arranged on the rimless lens, then hexagonal holes in the middle beam and the lens pile are oppositely arranged, hexagonal screws are inserted, and nuts are arranged on the side of the lens for fixing. 本实用新型公开了一种中梁及镜桩与无框镜片的连接结构，所述中梁及镜桩上穿两个孔，所述孔位靠近镜片边缘的孔为六角形，与六角车件配合固定，所述孔位靠近镜片中心的孔外为六角形，内为圆形，与六角螺丝配合固定，所述六角车件与两孔连接片焊在一起固定装在无框镜片上，再将中梁及镜桩上的六角孔对上安装，插入六角螺丝，从镜片侧上螺母固定。