Railway construction small foundation pit LED light reminding device with good warning effect

The utility model discloses a railway construction small foundation pit LED light reminding device with a good warning effect, which relates to the field of railway construction and comprises a protective frame, a warning board fixedly mounted on the protective frame, an LED light bar fixedly mounted on the warning board, a bottom frame fixedly mounted on the bottom side of the protective frame, and a supporting plate fixedly mounted on the bottom side of the bottom frame. Rolling wheels are rotationally installed on the two sides of the supporting plate, a supporting frame is slidably installed on the supporting plate, and two connecting plates are fixedly installed on the supporting frame. Through the arrangement of the warning board, the LED light bar, the underframe and other structures, the protective frame emergency underframe can be moved to the position above a foundation pit in a railway construction site during use, the warning board can play a role in warning passersby and vehicles, meanwhile, the