Arc extinguish chamber assembly and porcelain column type sulfur hexafluoride breaker

The utility model provides an arc extinguish chamber assembly and a porcelain column type sulfur hexafluoride breaker. The arc extinguish chamber assembly comprises more than two arc extinguish chamber monomers, and each arc extinguish chamber monomer comprises a movable support disposed on the head end and a static support disposed on the tail end. The movable support is assembled with a moving contact in a guiding sliding manner. The static support is fixedly provided with a static contact coaxially opposite to the moving contact. The arc extinguish chamber monomers are connected in series from head to tail on a same axis. The moving contact of one of the two adjacent arc extinguish chamber monomers is connected with an insulating connecting piece in a transmission manner, the insulating connecting piece is connected with the moving contact in another arc extinguish chamber monomer in a transmission manner. In each two adjacent arc extinguish chamber monomers, the static support on the tail end of the front arc extinguish chamber monomer is electrically connected with the movable support of another arc extinguish chamber monomer which is connected with the tail end of the front arc extinguish chamber monomer. When the arc extinguish chamber assembly is used, the arc extinguish chamber assembly can switch-on and switch-off synchronously, thereby greatly improving voltage classes the breaker arc extinguish chamber can bear.