Pump truck is a mechanical device that uses pressure to continuously transport concrete along pipelines. Composed of pump body and delivery pipe. It can be divided into piston type, extrusion type, and water pressure diaphragm type according to its structural form. The pump body is installed on the chassis of the car, and then equipped with extendable or flexible fabric rods to form a pump truck.The pump truck is modified from the chassis of a heavy-duty truck. It is equipped with motion and power transmission devices, pumping and mixing devices, fabric distribution devices, and other auxiliary devices on the chassis.The power of the pump truck is transmitted to the hydraulic pump unit or rear axle through the power transfer box, and the hydraulic pump pushes the piston to drive the concrete pump to work. Then, use the distribution rod and delivery pipe on the pump truck to transport the concrete to a certain height and distance.The engine of a pump truck is not only used to drive the pump truck, but also to drive working devices such as the pumping mechanism, mixing mechanism, and distribution mechanism.