Height limiting device for municipal road bridge

The height limiting device comprises a height limiting device body and a forbidding device, the limiting device body comprises a first cross beam, a lifting plate and a limiting plate, the two sides of the bottom end of the first cross beam are fixedly connected with the top ends of supporting beams, and sliding grooves are formed in the top ends of the sides, close to each other, of the two supporting beams; the two sliding grooves are slidably connected with sliding blocks correspondingly, the sides, close to each other, of the two sliding blocks are fixedly connected with the left side and the right side of a lifting plate correspondingly, and the two sides of the top end of the lifting plate are fixedly connected with rope fixing blocks correspondingly. Through mutual cooperation of the height limiting device and the forbidding device, when a vehicle exceeding the limited height passes, the vehicle collides with a limiting plate, and a metal touch block on the rear side of the limiting ...