Energy-saving wall bushing pre-embedding device used in high-voltage electric appliance

Abstract

The invention relates to the technical field of power equipment, and concretely relates to an energy-saving wall bushing pre-embedding device used in a high-voltage electric appliance. Pin penetrating holes are fixedly formed in the outer walls of the periphery of the outer surface of a fixing frame, supporting blocks are fixedly connected to the inner walls of the upper end and the lower end of the fixing frame, and a limiting frame is fixedly connected to one end of each supporting block; and a sealing plate is fixedly connected to the inner wall of the limiting frame, an electromagnet is fixedly connected to the position, located on one side of the sealing plate, of the inner wall of the limiting frame, an iron rod is fixedly connected to one end of the electromagnet, an adjusting rod is fixedly connected to the position, located between the inner wall of the sealing plate, of the outer surface of the iron rod, and an insulating layer is fixedly connected to one end of the iron rod. One end of the limiting spring is fixedly connected with a push-pull plate, and the insulating layer extrudes the outer surface of the sleeve, so that the insulating layer wraps the outer surface of the sleeve more tightly, the electric leakage phenomenon of the sleeve can be improved, and meanwhile, insects, ants, dust and the like can be prevented from entering the sleeve.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to an energy-saving pre-embedded device for wall-piercing bushings used in high-voltage electrical appliances. Background technique [0002] The AC wall bushing used for electric conduction is called AC wall bushing. From the material, it can be divided into dry capacitive AC wall bushing and porcelain insulated AC wall bushing. They are referred to as silicone rubber bushing and porcelain bushing respectively. The conductive part of the bushing is made of aluminum conductor, which saves a lot of copper and reduces the cost. The conductive area connected to the bus bar is increased, which overcomes the shortcoming of high temperature caused by the small contact area of ​​the copper guide rod. The shell of the through-wall bushing has a good Excellent insulation performance, during use, it will not discharge the metal plate near the flange. [0003] When the sleeve ...

AI Technical Summary

Problems solved by technology

[0003] When the casing embedded in the wall is worn after long-term use, there may be leakage. When there is moisture inside the wall, the current will be transmitted through the moisture and there is a risk of electric shock, and the casing is often not in contact with the wall. The reserved holes fit perfectly, and there are many gaps. At present, colloid is generally used to fill the gaps, which plays a stabilizing role. However, as the use time increases, the colloid will age or even fall off, causing the wall-through casing to shift and affect the normal operation of the casing. Therefore, those skilled in the art provide a kind of energy-saving wall bushing pre-embedded device used in high-voltage electrical appliances to solve the problems raised in the above-mentioned background technology

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