Torsion-resistant cable capable of preventing moisture

Abstract

The invention discloses a torsion-resistant cable capable of preventing moisture. The torsion-resistant cable comprise an outer sheath (1), an inner sheath (3), a plurality of cable sheaths (4) and a cable core (5), wherein the inner sheath (3) is arranged in the outer sheath (1), the plurality of cable sheaths (4) are arranged in the inner sheath (3), the cable core (5) is arranged in the cable sheath (4), a plurality of A grooves are formed in an inner surface of the outer sheath (1), B grooves are formed in an outer surface of the inner sheath (3) and are in one-to-one correspondence to the A grooves, the A grooves and the B grooves are matched to form a hollow cavity, reinforcement elements (2) are arranged in the hollow cavity, and a waterproof layer (7) is arranged between the inner sheath (3) and the cable sheath (4). The torsion-resistant cable has the advantages that the outer sheath can be prevented from rotating relative to the inner sheath by the reinforcement elements, so that the torsion-resistant capability is improved, and the abrasion between the inner sheath and the outer sheath is prevented; with the arrangement of the reinforcement elements, the mechanical strength of the torsion-resistant cable can also be improved; and with the arrangement of the waterproof layer, the waterproof and dampproof capability of the torsion-resistant cable can be improved.

Description

technical field [0001] The invention relates to the field of cables, in particular to a moisture-proof torsion-resistant cable. 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 preven...

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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