Urban rail transit traction power supply monitoring device

The utility model discloses an urban rail transit traction power supply monitoring device, and relates to the technical field of urban rail transit, the urban rail transit traction power supply monitoring device comprises a device main body, a connecting shaft, a filter plate and a blower device, the front side of the device main body is provided with a cabinet door, the device main body is internally provided with a laminate, and the top of the laminate is provided with a power supply monitor; when the device is installed and the ground has a slope, the bottom plate is placed on the ground, the threaded rod is rotated to move upwards, then the bottom of the device body can freely rotate through the spherical structure at the top of the connecting shaft, the angle of the device body is adjusted, and the device body can be kept vertical and balanced; and then the threaded rod is rotated, the threaded rod can move downwards, the bottom of the threaded rod abuts against the top surface of the bottom plate, the a