Hoisting machinery primarily serves as auxiliary equipment for cast iron gates, flat steel gates, weir gates, flat gratings, valves and similar products, facilitating the opening or closing of these operational components. Classification by lifting point configuration includes single-point and double-point hoists; by transmission medium, they are categorised as hydraulic or pneumatic hoists; by connection method, they comprise rigid hoists (e.g., screw jacks) and flexible hoists (e.g., wire rope hoists); and by operation mode and automation level, they are divided into manual, electric, integrated, and intelligent types.