This equipment is mainly composed of a frame, square gate plate, sealing ring, and adjustable wedge block. The screw rod is connected to the gate plate by a hinge, which effectively eliminates the difficulty of ensuring machining accuracy and reduces wear between the frame and the gate plate. A lifting lug is provided at the top of the frame for easy handling. After prolonged use, the gate may experience wear; however, the sealing surface can be adjusted via the wedge block to ensure proper operation. During installation, the gate plate should be placed on the water intake side. The equipment features a robust and reasonable structure, strong wear and corrosion resistance, reliable performance, and easy installation, adjustment, operation, and maintenance. It is suitable for irrigation, water treatment plants, flood control, wastewater treatment, and similar industries.