Extension interval knife switch vertical connecting rod limiting device

Abstract

The invention aims to provide an extension interval knife switch vertical connecting rod limiting device for preventing mis-opening and mis-closing of a knife switch. The device comprises a left limiting device and a right limiting device. The left limiting device comprises a first mechanical locking rod and a first U-shaped screw. The arc-shaped section of the first U-shaped screw is attached tothe side wall of the knife switch vertical connecting rod; and the rod body of the first mechanical locking rod passes through the vertical segment of the U-shaped screw, is tangent to the outer surface of the knife switch vertical connecting rod and the outer surface of an isolation switch pillar, and is screwed through a first nut and a second nut. The structure of the right limiting device is the same as that of the left limiting device; the second mechanical locking rod and the first mechanical locking rod are arranged in a V shape; and the second mechanical locking rod is tangent to the outer surface of the knife switch vertical connecting rod and the outer surface of the isolation switch pillar. Through arrangement of the V-shaped mechanical locking rods, the isolation switch pillarbeside the knife switch vertical connecting rod is ingeniously utilized to make the isolation switch pillar clamped between the V-shaped mechanical locking rods to form mechanical locking, thereby preventing rotation of the knife switch vertical connecting rod.

Description

technical field [0001] The invention belongs to the technical field of knife switch limit, and in particular relates to a vertical link limit device for an extended interval knife switch. Background technique [0002] In recent years, during the electrical installation and construction, our company has often carried out the construction of expanding the interval knife gate to connect to the running busbar. When the knife gate is installed, the upper busbar is powered off. After the installation is completed, the knife gate mechanism is padlocked to prevent personnel from misoperation. However, this measure is risky. , non-direct measures were taken in the knife switch mechanism, and there was a phenomenon of personnel misoperation and wrong closing of the knife switch. [0003] After the construction of the existing expansion interval, in order to prevent the opening and closing of the knife gate by mistake, ropes or iron wires are often used to control it at the turning arm...

AI Technical Summary

Problems solved by technology

[0002] In recent years, during the electrical installation and construction, our company has often carried out the construction of expanding the interval knife gate to connect to the running busbar. When the knife gate is installed, the upper busbar is powered off. After the installation is completed, the knife gate mechanism is padlocked to prevent personnel from misoperation. However, this measure is risky. , non-directly take measures on the knife switch mechanism, there have been errors in personnel misoperation and wrong closing of the knife switch

[0003] After the construction of the existing expansion interval, in order to prevent the opening and closing of the knife gate by mistake, ropes or iron wires are often used to control it at the turning arm of the vertical connecting rod of the knife gate. Sometimes there are other non-construction personnel operating the knife gate and no one knows, there is a great hidden danger

[0004] In this case, after market research, it was found that there is no solution at home and abroad that can directly limit and monitor the vertical connecting rod of the extended interval knife gate. For construction needs, it is necessary to develop a set of vertical Link limit device

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