Slide-up fixing device of weak current ground copper bar

Abstract

A side-up fixing device of a weak current ground copper bar comprises a supporting piece (1) and a clamping device (2), wherein a slot mouth is arranged in the center of the bottom of the clamping device (2). The slot bottom is a copper bar placing position (4), clamping device protrusions (8) are arranged on outer sides of a clamping slot (5), and notch grooves which correspond to the clamping device protrusions (8) are arranged at the upper end of the supporting piece (1). Limiting blocking edges (10) are arranged on the inner side of the notch grooves, a round boss (6) is arranged on the outer periphery of the upper end of the supporting piece (1), and the boss (6) is connected with the interior of the clamping slot (5) of the clamping device in a clamped mode. The clamping device protrusions (8) are clamped in the notch grooves. The copper bar can be clamped and fixed through the supporting piece, the structure is simple and the installation is convenient. Electric conduction cross section of the copper bar and the mechanical strength cannot be reduced. Besides, the copper bar can stretch along the axial direction, and deformation along the axial direction caused by temperature change can be absorbed, so the adaptability is strong.

Description

technical field [0001] The invention relates to a fixing device, in particular to a sliding cover type fixing device for a weak current grounding copper bar. Background technique [0002] In the substation, in addition to the grounding body used in the high-current grounding system, a grounding copper bar is used because of the anti-interference requirements of weak current equipment. According to relevant requirements, this kind of grounding copper bar needs to be supported by insulating materials in certain places. The fixing method at this stage is: use a low-voltage support insulator, open a hole in the copper bar, and fix the copper bar and the insulator together with a bolt. The disadvantages of this connection are: 1. The opening on the copper bar reduces the effective cross-section; 2. The copper bar is fixed and cannot be stretched in the axial direction, and cannot accommodate the axial deformation caused by temperature stress, and sometimes it will damage the ins...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a structure for the defects and deficiencies of the existing weak current grounding copper bar by opening holes on the copper bar so that the conductive section of the copper bar is reduced, the mechanical strength is weakened, and it cannot adapt to temperature changes. Simple, easy to install, does not change the conductive section and mechanical strength of the copper bar, and can adapt to temperature changes, a sliding cover type fixing device for weak current grounding copper bars

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