The types of forklifts are internal combustion forklifts, electric forklifts and storage forklifts. Forklift refers to all kinds of wheeled handling vehicles used for loading and unloading pallet goods, stacking and short-distance transportation. The structural characteristics and working performance of forklift trucks are expressed by technical parameters such as rated lifting weight, load center distance and portal inclination. Forklift is one of the commonly used handling vehicles. It is a wheeled handling vehicle used for loading and unloading pallet goods, stacking, short-distance transportation and carrying heavy objects. Widely used in ports, stations, airports, freight yards, factory workshops, warehouses, circulation centers and distribution centers, and can enter cabins, carriages and containers to load and unload pallet goods. It is an essential equipment for pallet transportation and container transportation.