CONVEYING BENT PIPE, CONCRETE CONVEYER AND MANUFACTURING METHOD OF THE CONVEYING BENT PIPE

摘要

A conveying bent pipe, a concrete conveyer and a manufacturing method of the conveying bent pipe are disclosed. The disclosed conveying bent pipe comprises an inner pipe, an outer pipe and a filling layer, wherein the outer pipe comprises at least two supporting pipes which are sequentially connected with each other. The outer pipe of the conveying bent pipe provided by the invention has a split type structure and comprises two or more supporting pipes, thereby reducing the cost of the conveying bent pipe while ensuring wearing resistance, strength, high toughness and shock resistance of the same. In a preferred technical solution, the inner pipe and outer pipe are fixed by an adhesive layer so that not only the acting force of the inner pipe can be transferred to the outer pipe and the supporting and protecting function of the outer pipe for the inner pipe can be ensured, and but also safety of the conveying bent pipe can be increased. With the manufacturing method of the conveying bent pipe, not only the manufacturing process can be simplified in manufacturing the conveying bent pipe, but also the number of auxiliary devices can be reduced, and the manufacturing cost of the conveying bent pipe can be lowered.