Waterproof power distribution cabinet and installation method thereof

The invention discloses a waterproof power distribution cabinet and an installation method thereof, and relates to the technical field of carding equipment. According to the waterproof power distribution cabinet and the installation method thereof, the waterproof power distribution cabinet comprises a self-starting sealing waterproof mechanism. According to the waterproof power distribution cabinet and the installation method thereof, the water storage box is driven by the gravity of water to move downwards through the starting piece, when the pressure of the stop lever on the sealing rubber plate is larger than the pressure of the water on the sealing rubber plate, the sealing rubber plate moves upwards, the water in the water storage box flows out, but the water flowing out in unit time is not much, and the water storage box is always kept in a full water state; when the rain stops or is extremely small, the water level of the water storage box is continuously lowered, and the first spring drives the water