Voltage sag detection equipment

The utility model discloses a voltage sag detection device comprising a placing box, a power box and a collecting groove, the upper surface of the top of the placing box is fixedly connected with the power box, the lower surface of the bottom of the placing box is fixedly connected with the collecting groove, and the center position of the bottom of the power box is fixedly connected with a motor. A moving mechanism is fixedly connected to the driving end of the motor and comprises a rotating rod, the rotating rod is arranged in an L shape, a sliding block is fixedly connected to the top of the end, away from the motor, of the rotating rod, and a guide rail is slidably connected to the surface of the end, away from the rotating rod, of the sliding block in a penetrating mode; first racks are fixedly connected to any two side walls of the guide rail, and transmission gears are connected to the ends, away from the guide rail, of the two first racks in an engaged mode. Through arrangement of the moving mechanism