The height and material of the fence can be selected according to the purpose. The overall structure of the vehicle is reasonable, the performance is reliable, and the operation is simple. The fence design makes the loading and unloading of goods more convenient and fast. Loading and unloading can be carried out from the side and the back, which improves the work efficiency. Meanwhile, fences can maintain good ventilation conditions for goods during transportation, making them suitable for transporting some goods that require ventilation.