Vacuum circuit breaker pole for gas insulated switchgear

The utility model relates to the technical field of gas-insulated switchgears, and discloses a vacuum circuit breaker pole for a gas-insulated switchgear, which adopts a novel movable end sliding electric connection structure and a static end casting conductor connection structure, and is provided with heat dissipation holes in a matched manner, so that the heat dissipation performance of the pole is improved on the basis of optimizing the insulation design. The heat dissipation problem of the existing circuit breaker pole column when the rated current is improved is well solved. The overall structure of the pole is based on air gap insulation instead of composite insulation, so that the inter-phase insulation performance of the arc extinguish chamber is improved. The upper and lower vent holes on the arc extinguish chamber side of the pole are convenient for the arc extinguish chamber to dissipate heat through the end covers on the two sides; the overall structure of the pole is based on air gap insulation i