Rotary focusing structure of lamp holder

The utility model discloses a lamp holder rotary type focusing structure which comprises a lamp holder seat and a focusing ring which are mutually and rotatably connected together, the focusing ring is rotatably connected outside the lamp holder seat, an elastic arm is integrally formed on the lamp holder seat, a limiting protrusion is arranged on the outer side of the elastic arm, and the limiting protrusion is arranged on the outer side of the elastic arm. The inner wall of the focusing ring is provided with a limiting gear ring matched with the limiting bulge for limiting; the number of the elastic arms is two, and the two elastic arms are distributed on the two sides of the lamp holder base in a bilateral symmetry mode. The utility model has the beneficial effects of novel and simple structure, quicker production and assembly, improved production efficiency, reduced production cost, improved product stability and improved product quality. 本实用新型公开了一种灯头旋转式调焦结构，包括相互转动连接在一起的灯头座和调焦圈，调焦圈转动连接在灯头座的外部，所述的灯头座上一体成型的