Connecting device for vertical prestressed tendon of prefabricated solid pile and anchoring steel bars with different diameters

The utility model relates to a connecting device for a vertical prestressed tendon of a prefabricated solid pile and anchoring steel bars with different diameters, and belongs to the technical field of prefabricated pile construction. The device comprises a prestressed tendon, an anchoring steel bar and a connecting sleeve, the connecting end of the anchoring steel bar is provided with a pier head and is in threaded connection with a top sleeve opening of the connecting sleeve, and the connecting end of the prestressed tendon is sleeved with an inverted-circular-truncated-cone-shaped clamping sleeve and clamped in an inverted-circular-truncated-cone-shaped clamping opening in the bottom of the connecting sleeve. Compression springs which are in a stressed state and are arranged between the prestressed tendons and the anchoring steel bars in an abutting mode are arranged in the connecting sleeves. The device is high in practicability and easy to operate, the connecting quality of the pile head anchoring steel