What are trailers, semi trailers and vans?
A trailer is a vehicle that is drawn by the car without its own power. A combination of a car (a freight car or tractor, a forklift truck) and one or more trailers.
It is an important type of road transportation, and the automobile train transportation is the most effective and simple means to improve the economic efficiency. The utility model has the advantages of rapid, flexible, flexible, safety, etc., and can conveniently realize the sectional transportation.
. The truck and tractor are called the main vehicle for the driving section of the automobile train, and the trailer is called Trailer by the main vehicle.
A semi-trailer is a trailer that is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and equipped with a coupling device that can transfer horizontal and vertical forces to the tractor. Semi trailers are generally three axle semi trailers, and their types are divided into eleven meters, warehouses, semi trailers, thirteen meters hurdles, low flat, semi trailers and many other species. The utility model relates to a heavy transportation vehicle which is connected with a semi-trailer head through a traction pin.
