Freight tricycles are divided into two parts, front and back. The front part has a steerable wheel, handlebars, bells, brakes, pedals and seats, and the rear wheel is driven by a chain. The rear part of the tricycle is mainly the carriage, which is a wooden semicircular body that can accommodate two people side by side. The carriage is equipped with a foldable rainproof awning, with springs and two wheels underneath. Under the seat is a wooden box that can be opened to store the driver's tools and sundries. The seat is cushioned with cloth and cotton wool, and there are pedals underneath. There are hooks on the front of the carriage to hang rainproof curtains. The curtains are generally made of canvas or oilcloth, and cotton curtains are used in winter to block the wind and cold.
Another type of tricycle is called a children's tricycle, which is a toy designed for young children. In addition to the difference that it can only accommodate one person, the children's tricycle has no chain and brakes. The pedals of the car are directly connected to the front wheel, and the speed of the wheel is exactly the same as the pedaling speed of the foot.
