STRUCTURE FOR PILE SCREW JOINT EQUIPPED WITH LOCKING MECHANISM AGAINST REVERSE LOOSENING

摘要

PROBLEM TO BE SOLVED: To provide a structure for pile screw joint equipped with a locking mechanism against reverse loosening capable of mutually connecting upper and lower piles so that the driven lower pile is rotated to follow the reverse rotation of the upper pile, and easily executing the connection with satisfactory precision and quality.;SOLUTION: This joint structure for mutually connecting the upper and lower piles 1 and 2 by screwing a female joint member 3 provided on the upper end of the lower pile 1 to a male screw joint member 4 provided on the lower end of the upper pile 2 comprises a locking mechanism to prevent reverse loosening. The reverse loosening locking mechanism is formed by driving a linear key 5 to a key hole 8 through a key inlet hole 9 from the outside of the female screw joint member 3.;COPYRIGHT: (C)2002,JPO