Solid-sealed polar pole

The invention provides a solid-sealed polar pole, which comprises a first part and a second part, the first part comprises a first shell, a vacuum arc-extinguishing chamber, an insulating pull rod, aflexible connector, a lower outgoing line seat, an upper outgoing line seat and a sliding isolation knife, the first shell is provided with a left mounting side and a right mounting side which are isolated from each other and arranged oppositely; the vacuum arc-extinguishing chamber and the insulating pull rod are arranged on the left mounting side, the sliding isolation knife is arranged on the right mounting side, the second part comprises a second shell, an upper isolation knife static contact and an upper isolation knife spring contact piece, and the second shell is fixed to the upper endof the first shell and extends towards the right mounting side to form an insulating cap, the upper isolation knife spring contact piece is assembled on the insulating cap and faces downwards to correspond to the sliding isola