Modularized car lamp projection lens structure

The modularized car lamp projection lens structure comprises a lens barrel and a lens group, the interior of the lens barrel is of a hollow structure, a fixed lens group and a detachable lens group are arranged in the lens barrel, the bottom of the lens barrel is connected with a light-emitting source, and the light-emitting source can map pictures through the fixed lens group and the detachable lens group. The detachable lens group comprises a third lens and a lens piece, pictures of different sizes can be projected by adjusting and replacing the third lens and the lens piece, and the detachable lens group is connected to the lens barrel through clamping or screws and used for disassembling and replacing the lenses. 本实用新型提出一种模块化车灯投影镜头结构，包括镜筒和镜头组，所述镜筒内部为中空结构，镜筒内部含有固定镜片组和可拆卸镜片组，镜筒的底部连接发光源，发光源可以透过固定镜片组和可拆卸镜片组映射出画面，可拆卸镜片组包括第三镜片和镜头片，通过调节更换第三镜片和镜头片可以投射出不同尺寸的画面，所述可拆卸镜片组通过卡接或者螺丝连接在镜筒上，用于镜片的拆卸更换。