Urban waterlogging prevention intelligent detection early warning device

The utility model discloses an intelligent detection early warning device for urban waterlogging prevention, which belongs to the technical field of early warning devices and comprises a mounting bottom plate, two main sliding rods are fixedly connected to the top surface of the mounting bottom plate, and a gas floating box is slidably sleeved between the outer walls of the two main sliding rods. The outer walls of the two sides of the gas floating box are each provided with a set of extension rods in an extending mode, the number of each set of extension rods is two, and a floating block is fixedly connected between one ends of each set of extension rods. According to the intelligent detection and early warning device for urban waterlogging prevention, a mounting bottom plate is mounted, a gas floating box and a floating block are lifted by water flow, then the gas floating box drives a limiting rod and a display plate to move upwards, and a worker can determine the drainage efficiency of a drainage pipe acc