Underbody lamp for rail transit

The utility model provides an underbody lamp for rail transit, and aims to solve the technical problem that a bulb of an existing underbody lamp bursts due to water inflow. Comprising a mounting base, a first connecting piece and a second connecting piece, one end of the lampshade is provided with an annular protruding block, and the annular protruding block is embedded in the annular groove. The sealing rubber mat is positioned in the annular groove; the supporting plate is an arc-shaped transparent plate, and the concave side of the arc-shaped surface of the supporting plate is arranged at the other end of the lampshade; the lamp holder is arranged on the mounting seat and is positioned in the lampshade; and the lamp body is detachably arranged on the lamp holder. The waterproof advantage is realized. 本实用新型提供了轨道交通用的车底灯，目的是解决现有车底灯因为进水导致灯泡炸裂的技术问题。包括：安装座，所述安装座的一端具有环形槽；灯罩，所述灯罩的一端具有环形凸块，所述环形凸块嵌设于所述环形槽内；密封胶垫，所述密封胶垫位于所述环形槽内；支撑板，所述支撑板为弧形透明板，且支撑板的弧形面内凹一侧设于所述灯罩的另一端上；灯座，所述灯座设于所述安装座上，且位于所述灯罩内；灯体，所述灯体可拆卸的设于所述灯座上。具有防水的优点