Road traffic height limiting frame with automatic separation function

The utility model discloses a road traffic height limiting frame with an automatic separation function, which comprises two support frames, a cylindrical rod is fixed on the tops of the two support frames together, two first cylinders are sleeved on the outer side of the cylindrical rod, vertical rods are fixed on the outer sides of the first cylinders, and a height limiting rod is fixed on the bottoms of the two vertical rods together. First notches are formed in the two supporting frames, the height limiting rods can be embedded into the first notches, a connecting rod is jointly fixed between the two vertical rods, a height limiting indication board is fixed to the middle of the connecting rod, and a control assembly used for embedding the height limiting rods into the first notches is arranged on the outer side of the cylindrical rod. Through the arrangement of the cylindrical rod, the first cylinder, the vertical rod and the height limiting rod, the height limiting rod and the vertical rod rotate with th