The utility model discloses a novel chuck, including last chuck and lower chuck, the center of going up the chuck is provided with the spliced eye, the four corners department of going up the chuck isprovided with four jack catchs, go up the chuck with be provided with the spliced pole down between the chuck, the center department of chuck is provided with down the spliced eye down, the four corners department of chuck also is provided with four down the jack catch. Beneficial effect lies in: simple structure, with low costs, chuck can resist cement pole each side to the moment of flexure, and need not metal components and connect, the durability is good, it is convenient to be under construction.