Anti-shearing self-recovery voltage-withstanding cable

Abstract

The invention discloses an anti-shearing self-recovery pressure-resistant cable, belongs to the technical field of power cables, and can realize that a specially-made central support ball, a support pressure-resistant frame, a protection pressed sheet and linkage telescopic rod groups are arranged, when the cable is pressed, the protection pressed sheet is sunken inwards to drive a plurality of linkage telescopic rod groups to generate corresponding changes respectively, so the cable is prevented from being damaged; when the pressure is released, the supporting pressure-resistant frame is rotated to drive the linkage sliding block in the supporting pressure-resistant frame to correspondingly slide, the buffering pressure-resistant function of the supporting pressure-resistant frame is triggered, the pressure received by the cable is greatly buffered, the cable core wire is not directly extruded, the cable core wire is effectively protected, the cable core wire is prevented from being damaged, and after the pressure is released, the cable core wire is prevented from being damaged; resilience of the first buffer spring and the second buffer spring, the resilience of the elastic inner layer and the backflow of air in the elastic air bag can cooperatively drive the supporting pressure-resistant frame and the protection pressed piece to reset and restore, so the cable can maintain excellent pressure-resistant capability, and the practicability is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a shear-resistance and self-recovery pressure-resistant cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main line of the power system, including 1-500KV and above various voltage levels and various insulated power cables. [0003] After the cable is installed, due to the long length of the cable core wire, it often encounters shearing and compression, and the structure of the cable is mostly ordinary, usually composed of an external protectiv...

AI Technical Summary

Problems solved by technology

[0003] After the cable is installed, due to the long length of the cable core wire, it often encounters shearing and compression, and the structure of the cable is mostly ordinary, usually composed of an external protective layer and an internal core wire. The ordinary protective layer, Its cushioning and compression resistance is poor, but when the cable encounters shearing and compression, it will directly squeeze the inner core wire, which will easily cause damage to the core wire. In the prior art, although there are some anti-shear and compression structures Pressure-resistant cables, but these anti-shear and compression mechanisms do not have a self-recovery function. After excessive pressure is applied, the anti-shear and compression mechanisms will have a greatly reduced compressive capacity and low practicability

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