Patch board with waterproof function

The utility model discloses a patch board with a waterproof function, and belongs to the field of waterproof patch boards. A patch board with a waterproof function comprises a metal shell, an outer convex line and a notch, the outer convex line and the notch are arranged on the outer surface of the metal shell, and the notch is located in the middle of the outer convex line. The internal protection bin is arranged on the inner side of the metal shell; according to the utility model, the metal shell, the metal door, the sealing rubber ring and the spring are arranged to form an automatically closed sealing structure, so that the patch board can be automatically closed when a user uses the patch board and after the user uses the patch board, the connection part of the patch board and electric equipment is protected, external raindrops and dust particles are effectively prevented from entering the patch board, and the service life of the patch board is prolonged. Meanwhile, the metal shell and the metal door of