Now hoist products of various specifications and uses are widely used in irrigation and drainage, hydropower stations, rivers, reservoirs, environmental protection, sewage treatment, aquaculture and other water conservancy projects.
Classification of hoist

1. Usually we can divide the operation power of hoist into manual hoist, electric hoist and hydraulic hoist.
2. According to the power transmission mode of hoist, it can be divided into mechanical transmission and hydraulic transmission. Mechanical transmission is divided into belt drive, chain drive, gear drive and combination drive. Hydraulic transmission can be divided into hydraulic transmission and hydraulic transmission, that is, hydraulic hoist.
3. When the gate and hoist connection mode can be divided into flexible, rigid and semi-rigid connection.
4. When the gate features are divided into plane gate hoist, radial gate hoist and miter gate operating machinery, etc.
5. Generally, we also name the gate operation equipment as follows, such as screw hoist, chain hoist, winch hoist, hydraulic hoist, trolley hoist, gantry hoist (crane), etc.
6. According to the connection mode of gate and hoist, it can be divided into flexible, rigid and semi-rigid connection. According to the characteristics of the gate, it can be divided into plane gate hoist, radial gate hoist and miter gate operating machinery, mainly including: cast iron gate, high-pressure cast iron gate, double-sided water stop gate, plane sliding steel gate, plane fixed wheel steel gate, copper inlaid cast iron square gate, copper inlaid cast iron round gate, adjustable weir gate, flap gate (tidal gate), integrated gate and radial gate Stoplog gate, stainless steel gate, etc.. It is also customary to name the gate operation equipment with its comprehensive characteristics, such as screw hoist, chain hoist, winch hoist, hydraulic hoist, trolley hoist, gantry hoist (crane), etc
The original work of the hoist is: when the opening and closing force, gate opening or falling (closing) traction or applied pressure, opening and closing travel and opening and closing speed. When selecting the type of hoist, the following factors are mainly considered: gate form, sealing size and operating conditions, the number of openings and gates of the same type, the number of gate lifting ears, the hoisting force, opening and closing stroke and opening and closing speed, the power condition, setting location, spatial scale and other operation requirements of the hoist.