| 摘要 |
This invention involves a composite embedded-pole and its operating principles, including an insulating cylinder which has upper and lower cavities, and one of its ends tightly connects a sealing cap. As for the upper cavity, there is an outlet block on the left end, a spacing-set pair of static conductive blocks which bond with each other in the middle, and an earthing block on the right. Parts of the left static conductive block insert into the left of the lower cavity. The lead screw in the upper cavity is for rotary location with one end stretching out the sealing cap. The lead screw spirally connects with a moving contact set that matches with the outlet block, the static conductive block, and the earthing block forming a 3-bonding-position. There is a vacuum interrupter in the lower cavity, whose static contact bonding with the left static conductive block, and the outer end of the moving contact flexibly couples with the left of the insulating pull rod. The flexible coupling bonds with one end of the lower outlet rod, which is embedded in the lower part of the insulating cylinder. The right end of the insulating pull rod stretches out the sealing cap while operating. This invention of an embedded-pole is suitable for switchgears, with small volume, convenient and reliable installation and operation. |
