A force-transfer type anti-bending cable

Abstract

The invention discloses a force transfer type anti-bending cable, belonging to the field of cables. A force transfer type anti-bending cable comprises a core layer, an insulating layer wrapped around the core layer and an outer sheath wrapped around the insulating layer The jacket layer, when the cable is subjected to bending force, under the action of the force transfer strip, it can effectively guide the bending force to bend to the softer bending strip, so as to effectively control the bending mainly occurs at the bending strip. With the function of the anti-folding ball chain in the anti-folding strip, the two-way struts in the inner overlapping cavity are deformed, and at the same time, the reverse multi-ball contact pieces are pushed to both sides, so that the middle of the internal restraining force bag is subjected to the squeezing force. , so that the silica gel particles move from the middle to both sides, and the bulging on both sides exerts a reverse extrusion effect on the multiple dynamic balls, thereby effectively suppressing the overall deformation of the reverse multi-ball contact sheet, thereby further improving the cable's performance. The anti-bending effect can effectively avoid the local aging and damage of the cable, thereby significantly reducing the potential safety hazard.

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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