Height limiting frame for urban traffic

The utility model discloses a height limiting frame for urban traffic, and relates to the field of height limiting frames. A height limiting frame for urban traffic comprises two shells, the two shells are arranged in a bilateral symmetry mode, hydraulic rods are fixedly connected to the bottoms of inner cavities of the shells, a supporting plate is fixedly connected to the tops of the hydraulic rods, a locking hole is formed in the outer side of the supporting plate, and the supporting plate is fixedly connected to the top of the hydraulic rods. The top of the supporting plate penetrates to the top of the shell and is fixedly connected with a cross beam. According to the height limiting frame for urban traffic, when the limiting height needs to be adjusted, firstly, a locking screw in a locking hole is rotated out, a hydraulic rod drives a supporting plate to move upwards, the supporting plate drives the supporting plate to move upwards, the supporting plate drives a cross beam to move upwards, and the cross