The grocery cart is a man pushing, pulling the carrying vehicle, it is the ancestor of all the vehicles. Although the trolley material handling technology continues to evolve, the trolley is still used as an indispensable handling tool. The trolley is widely used in production and life because it is cheap, easy to maintain, easy to operate, light weight, can work in the motor vehicle inconvenient to use, in the short distance handling lighter items is very convenient. The trolley has rounds, two rounds, three rounds and four rounds.
The trolley is widely used in production and life because it is cheap, easy to maintain, easy to operate, light weight, can work in the motor vehicle inconvenient to use, in the short distance handling lighter items is very convenient, Save time and save money.
The wheelbarrow can travel in a narrow springboard, bridge and trail, and can be turned in situ and dumped. Commonly used two-wheeled vehicles are hand-rolled trucks, pallets and dump trucks that carry parts. One of the three trolleys, there are two rotary casters in the four-wheeled trolley that can revolve around the vertical axis. This rotary casters in operation with the direction of movement of the vehicle changes automatically adjust to the direction of the least resistance to running.
Different trolleys have different body structures. The universal four-wheeler has a cargo platform. Special trolleys are structured, and some body made of box, suitable for handling light and easy loading and unloading of the items; some body out of the bracket, easy to place the rod, shaft and pipe and other parts; some body shape completely With the goods, such as cylinder car; some very small, can be folded, easy to carry; some for easy loading and unloading bottled liquid, paper roll and other cylindrical goods, the body has two flat steel to form a low slope, Which facilitates rolling down the cylinder, such as a cylindrical cargo handling vehicle. Modern trolleys are equipped with rolling bearings, wheels with solid tires or pneumatic tires.