MECHANISM OF FIXING AND RELEASING SHAFT OR PIPE SLIDING IN INNER DIAMETER OF PIPE

摘要

PROBLEM TO BE SOLVED: To provide a mechanism capable of surely carrying out the fixation and release of a shaft or a pipe sliding in the inner diameter of a pipe.

SOLUTION: In one of two solutions, a clockwise rotation preventing coil spring 1 and an anticlockwise rotation preventing coil spring 5 are mounted on a spring round nut 20, and the spring round nut 20 having a fastened female screw 23 to which a fastening male screw 10 is threaded in an outside pipe inner diameter 3 allows the fastening and release of the screw without rotation in the outside pipe inner diameter 3 to the right or left during fastening and loosening. In the other, a ball groove 21 having a deep groove 24 and a shallow groove 25 and a ball 26 are provided in a wedge round nut 9 and the fastening male screw 10 operates on the fastened female screw 23 of the wedge round nut 9 in the outside pipe inner diameter 3 to prevent the rotation of the wedge round nut 9 in the outside pipe inner diameter 3 during threading for fastening and loosening.

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