Steel gate with anti-collision structure

The utility model discloses a steel gate with an anti-collision structure, relates to the technical field of gates, and aims to solve the problems that the anti-collision effect of the anti-collision structure of the steel gate in the prior art is limited, large stones and the like in rapid water flow collide with the gate, the gate is easily damaged, and the service life of the gate is prolonged. The steel gate comprises a fixed frame and a check block movably arranged on the inner wall of the lower end of the fixed frame. Second fixing blocks are fixedly installed at the front end and the rear end of the fixing frame correspondingly, third fixing blocks are fixedly installed at the right ends of the second fixing blocks, semi-ring bodies are fixedly installed at the right ends of the third fixing blocks, anti-collision columns which are evenly distributed are fixedly installed at the upper ends of the semi-ring bodies, and rubber cylinders are fixedly installed on the outer walls of the anti-collision colum