Drainage plate

Abstract

The invention relates to the technical field of electrical equipment, in particular to a drainage plate. The drainage plate comprises a fastening assembly and two drainage plates. The fastening assembly comprises a bolt and a nut; both the bolt head and the nut are provided with permanent magnets; the bolt is provided with a limiting rod made of magnetic shape memory alloy; the high-temperature phase and the low-temperature phase of the limiting rod are bent and linear respectively; a limiting rod and a stud in a low-temperature phase penetrate through the drainage plates and are fixedly connected with the nut, so that the two permanent magnets attract each other, and the two drainage plates are fastened and sealed; when the drainage plates emit heat, the limiting rods are converted from the low-temperature phase state to the high-temperature phase state so as to drive the limiting rods to abut against the nut, and the two drainage plates are kept fastened and sealed. By installing thepermanent magnets on the bolt head and the nut, the two drainage plates can be further fastened, and when the drainage plates emit heat, the limiting rods can automatically deform to achieve the self-fastening effect, and the technical problem that in the prior art, the two drainage plates are prone to poor contact is effectively solved.

Description

Technical field [0001] This application relates to the technical field of electrical equipment, in particular to a drainage plate. Background technique [0002] The strain clamp on the transmission line is an important power fitting, and its drain plate needs to withstand the pressure of the wire, but also needs to have good electrical performance. At present, the current common drainage plate used on the transmission line is to connect and fix two sheet-shaped drainage plates by bolts, which are characterized by simple structure, low processing difficulty and low cost. Although the disassembly and installation of the drain plate fixed by bolts are convenient, the two drain plates fixed by bolts will have poor contact due to the accumulation of wind pendulum. Poor contact of the drain plate will easily cause the wire clip to heat up and affect the stable operation of the transmission line. Summary of the invention [0003] In view of this, the purpose of the present application i...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of this application is to provide a diversion plate, which effectively solves the technical problem that the two diversion plates are prone to poor contact in the prior art. By installing permanent magnets on the bolt heads and nuts, the two can be further tightened. At the same time, when the drainage plate heats up, the limit rod will automatically deform and play the role of self-tightening, which has the advantages of good fastening and sealing of the drainage plate

Images