Waterproof connecting structure for carriage side plate

The utility model relates to the technical field of carriage manufacturing, and discloses a waterproof connecting structure for a carriage side plate, which comprises a support frame and a cushion block, the inner side wall of the support frame is fixedly connected with a main protection plate, and one side of the inner side wall of the support frame is fixedly connected with an auxiliary protection plate capable of assisting in protection. A sealable main stop block is clamped to one side of the outer surface of the main protection plate, a connectable connecting plate is fixedly connected to one side of the outer surface of the supporting frame, and a supportable supporting plate is fixedly connected to the other side of the bottom of the supporting frame. According to the waterproof type connecting structure for the carriage side plate, the main stop block and the connecting plate are arranged in a matched mode, abutting sealing can be directly conducted on the main protection plate from one side, and ther