Cable cut-resistant switchboard

By adding a detachable cable guide at the cable inlet of the distribution cabinet, and utilizing ball bearing support and elastic sealing structure, the problems of cable cuts and sealing failures at the cable inlet of the thin-walled cabinet are solved, achieving efficient cable protection. This method is suitable for scenarios such as new energy charging piles and data centers.

CN224537648UActive Publication Date: 2026-07-21HEBEI ZHONGLU ELECTRIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI ZHONGLU ELECTRIC TECHNOLOGY CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The cables at the thin-walled inlet holes of existing distribution cabinets are easily cut by sharp edges, the sealing structure is prone to failure, and the lack of rolling support mechanism leads to severe wear of the cable insulation layer, especially in scenarios with large vibration or temperature changes, resulting in protection failure.

Method used

The cable is detachable and includes an inner sheath, an outer sheath, balls, and an elastic rubber sleeve. The balls are connected to the inner sheath through a spherical groove. The outer sheath is provided with an annular rubber sleeve. The inner and outer sheaths are fixed by bolts. The balls roll to support the cable, and the rubber sleeve fills the gap, realizing rolling friction instead of sliding friction. Dynamic sealing is provided by a spring-thrust bearing combination mechanism.

Benefits of technology

It significantly reduces the coefficient of friction, prevents cable insulation from being cut, maintains a stable seal, extends service life, adapts to dynamic loads, and improves equipment operation safety and maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224537648U_ABST
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Abstract

The utility model relates to the technical field of power distribution equipment protection, specifically a cable anti-cutting type power distribution cabinet applied to thin-wall box structure, a cable anti-cutting type power distribution cabinet, including the rectangular box, the door board hinged in the front part of box, the lug of box rear part and the electrical element mounting panel on the inside rear wall of box, the box side wall is set up and includes detachable wire guide, wire guide is installed in the incoming line hole, contains the inner sheath and outer sheath of coaxial sleeve connection, both are through the bolt fixed connection of circumferential distribution, the inner sheath inner wall is set up multiple spherical through slots along the circumference, and the ball is inlayed in each through slot and protrudes the inner sheath inner surface partially, the inner sheath inboard is equipped with the press cover, and the press cover has the taper extrusion surface of ball abutment, the outer sheath outside sets up the annular rubber sleeve, and the rubber sleeve is filled with the clearance of wire guide and box wall after pressure deformation, wire guide is clamped and fixed in the incoming line hole both sides box wall through the annular platform of inner sheath and outer sheath.
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