Automatic waterproof baffle for basement

An automatic waterproof baffle for a basement relates to the technical field of flood prevention measures and is mounted at an entrance and exit of the basement, a bottom plate at the entrance and exit of the basement comprises a plane section and a slope section, a grating is arranged on the slope section, a reservoir is arranged below the grating and connected with a drainage channel, and an outlet of the drainage channel is communicated with a catch basin; the slope section of the bottom plate is further provided with a water tank, the water tank is located on the side, away from the plane section, of the water storage pool, and the water tank communicates with the water storage pool through a water flowing channel; a notch of the water tank covers the water baffle, and one side edge of the water baffle is hinged to the notch of the water tank; the lower surface of the water baffle is connected with a buoyancy box, the water baffle is connected with a steel wire rope upper connecting seat, the water tank i