Cable with high torsion resistance

Abstract

The invention discloses a cable with high torsion resistance. The cable comprises an outer sheath (1), an inner sheath (3) arranged in the outer sheath (1), a plurality of cable sheaths (4) arranged in the inner sheath (3), and cable cores (5) arranged in the cable sheaths (4), wherein a plurality of A grooves are formed in the inner surface of the outer sheath (1); B grooves in one-to-one correspondence with the A grooves are formed in the outer surface of the inner sheath (3); the A grooves are matched with the B grooves to form a cavity; and reinforcing pieces (2) are arranged in the cavity. The cable has the beneficial effects that the reinforcing pieces are arranged in the cavity, the reinforcing pieces can reach a blocking effect, and the outer sheath is prevented from rotating relative to the inner sheath, so that the torsion resistance of the cable is improved, the abrasion occurring between the inner sheath and the outer sheath is avoided, the service life of the cable is prolonged, the mechanical strength of the cable can be further strengthened through the arrangement of the reinforcing pieces, and the tensile capacity of the cable can be improved.

Description

technical field [0001] The invention relates to the field of cables, in particular to a cable with strong torsion resistance. Background technique [0002] With the rapid development of electronic communication technology, the requirements for spring telephone cables for various electronic communication systems are getting higher and higher. Not only must they have high elasticity, high wear resistance and softness, but they should also be miniaturized and lightweight. , Anti-interference characteristics. The currently used telephone cables have four cores insulated and extruded elastomeric sheaths; there are also two pairs of conductors twisted after insulation and then extruded elastomeric sheaths. The above two structures can meet the requirements of high elasticity and high wear resistance when the material is suitable, but they cannot resist the interference of external electromagnetic waves, and there is mutual interference between the two pairs. In order to prevent ...

AI Technical Summary

Problems solved by technology

The above two structures can meet the requirements of high elasticity and high wear resistance under the condition of suitable materials, but they cannot resist the interference of external electromagnetic waves, and there is mutual interference between the two pairs

In order to prevent interference, some cables have been adjusted in structure. After the insulating core is cabled, the shield is woven, and finally the elastomer sheath is extruded. This structure not only has a large overall size, but the interference between the core pairs still exists. Some cable pairs Each pair weaves split screens, and then weaves the total screen after the split screens. Although this structure can resist external electromagnetic wave interference and eliminate the mutual interference between each pair, it has a large structure size, heavy weight, poor elasticity and bendability. Unsuitable for laying in narrow spaces

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