Concrete pump trucks are mainly used in construction of houses, bridges and tunnels. At present, it is mainly divided into gate valve concrete pump and S valve concrete pump. Large-scale concrete conveying equipment is used for the concrete conveying work of large-scale concrete projects such as high-rise buildings, high speeds, and overpasses. It consists of a pump body and a delivery pipe. According to the structure, it is divided into piston type, squeeze type and hydraulic diaphragm type.