Passenger car auxiliary consignment device

The utility model discloses a passenger car auxiliary consignment device, which comprises a first support beam, a second support beam, a third support beam and a connecting piece, wherein the first support beam, the second support beam and the third support beam are welded by brackets, the brackets comprise a first square steel, a second square steel, a third square steel, a fourth square steel, a fifth square steel and a six square steel, the third square steel and the fourth square steel are arranged at the left tail ends and the right tail ends of the first square steel and the second square steel, the fifth square steel is positioned just above the first square steel, the sixth square steel is positioned just above the second square steel, a seventh square steel is welded at the left tail ends of the first square steel and the fifth square steel, an eighth square steel is welded between the left tail ends of the second square steel and the sixth square steel, a ninth square steel is welded between the right tail ends of the first square steel and the fifth square steel, a tenth square steel is welded between the right tail ends of the second square steel and the sixth square steel, an eleventh square steel is welded between the right tail ends of the fifth square steel and the sixth square steel, a twelfth square steel is welded between the left tail ends of the fifth square steel and the sixth square steel, a thirteen square steel is welded between the twelfth square steel and the eleventh square steel, and oblique braces are welded on the fourth square steel and the twelfth square steel.