Side opening type knife-shaped gate valve

The utility model discloses a side opening type knife gate valve, which belongs to the technical field of gate valves and comprises a valve body, two sides of the valve body are fixedly connected with flange plates, a knife groove is arranged in the valve body, a valve knife is connected in the knife groove in a sliding mode, the upper end of the valve knife is fixedly connected with a butt joint device, the upper end of the valve body is provided with a sliding groove, and the butt joint device is connected in the sliding groove in a sliding mode. A long cylinder is fixedly connected to the upper end of the valve body, a mounting cylinder is fixedly connected to the upper end of the long cylinder, a lifting assembly is arranged in the long cylinder and used for driving the valve knife to ascend and descend, and a driving assembly and a self-locking assembly are arranged on the mounting cylinder; the plug pin and the clamping block are designed in a separated mode, when the valve body is not used, the handle