Force transfer type anti-bending cable

Abstract

The invention discloses a force transfer type anti-bending cable, which belongs to the field of cables and comprises a wire core layer, an insulating layer and an outer sheath layer, the insulating layer wraps the wire core layer, and the outer sheath layer wraps the insulating layer. When the cable bears a bending force, the bending force is effectively guided to be bent towards a soft anti-bending strip under the effect of the force transfer strip, so that bending is effectively controlled to mainly occur at the anti-bending strip, at the moment, through cooperation with the effect of an anti-bending ball chain in the anti-bending strip, a two-way supporting rod in the overlapping cavity in the anti-bending strip deforms, and meanwhile thrust towards the two sides is generated on the reverse multi-ball abutting piece, so that the middle part of an inner force inhibition bag is subjected to extrusion force, silica gel particles move from the middle part to two sides, and the two sidesbulge to achieve a reverse extrusion effect on the plurality of force moving balls, so that the overall deformation quantity of the reverse multi-ball propping sheet is effectively inhibited, the anti-bending effect of the cable is further improved, the situation that the cable is locally aged and damaged is effectively avoided, and therefore, potential safety hazards are remarkably reduced.

Description

technical field [0001] The invention relates to the field of cables, more specifically, to a force transfer type anti-bending cable. Background technique [0002] The cable is mainly composed of the following 4 parts. ① Conductive wire core: made of high conductivity material (copper or aluminum). According to the requirements of cable softness under laying conditions, each wire core may be formed by twisting a single wire or multiple wires. ②Insulation layer: The insulation material used for cables should have high insulation resistance, high breakdown electric field strength, low dielectric loss and low dielectric constant. Commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc. Cables are often classified by insulating materials, such as oil-impregnated paper insulated cables, PVC cables, XLPE cables, etc. ③ Sealing sheath: protect the insulated wire core from mechanical, moistur...

AI Technical Summary

Problems solved by technology

[0003] Cables are generally rolled in rolls during transportation, so the cables have a certain resistance to bending. However, during installation or use of cables, accidental bends often occur that are much greater than the bends during rolling. When the larger bend fails to return to its original shape in time, the bending point is always in a state of fatigue, which is likely to cause faster aging at this place than other parts, resulting in partial damage to the cable after long-term use, posing a certain safety hazard

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