| 摘要 |
The invention relates to a screw joint of plastic for leading-in, leading-through, sealing and pull-relieving cables, lines or other thread-like elements (cable screw joint) comprising an intermediate connection piece with a sealing body inserted therein, and a box nut. The intermediate connection piece is provided with clamping tongues formed integrally therewith and extending coaxially thereto, which clamping tongues retain between them the mounted cable. The arrangement of the clamping tongues is such that when the box nut is turned at least one, preferably more clamping tongues distributed evenly over the circumference are urged inwardly in a selective manner and out of the remaining annular clamping tongue arrangement to exert upon the cable, preferably through the interposed packing, a deforming pressure providing positive protection against torsion of the cable relative to the cable screw joint. The fact that certain clamping tongues can be tilted inwardly in a selective manner provides further an expansion of the pressing area in the axial direction, which in turn leads to a reduction of the specific pressure.
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