Patent ID: 7504582
Filing Date: 2009-03-17
Classification: H02G

Abstract:
1. A retaining joint for fixing a cable a joint unit having a hollow body; the hollow body having a resisting ring; a front side and a rear side of the resisting ring having a first combining portion and a second combining portion, respectively; the first combining portion serving for combining with a locking unit; a front end of the second combining portion being connected to a plurality of clamping sheets: the hollow body having a liner with an open end and a closed end; wherein when a first combining portion is screwed with a retaining means, the locking unit serving to screw with the first combining portion; thus the joint unit is locked to the retaining means; a tightening element having a through hole; an inner surface of the tightening element having a thread for combining with the second combining portion; an inner wall of the tightening element being protruded as an extrusion surface for clamping and compress the clamping sheets to clamp a protection tube; and the protection tube being a hollow body; a surface of the protection tube being formed with a plurality of protruding rings and a plurality of recesses for retaining the protection tube; wherein the closed end of the liner is sealed by a film.