Gas insulation cylinder assembly and insulation support plate thereof

The invention relates to a gas insulation cylinder assembly and an insulation support plate thereof. The insulation support plate comprises an insulation plate formed by curing an insulation material,a central insert embedded in the insulation plate, a metal connecting plate fixed on the insulation plate, and a metal insert embedded in the insulation plate. The metal connecting plate is providedwith an insulation plate connecting hole, and the insulation plate connecting hole is used for being fixedly connected with the metal insert through a fastener so as to fix the metal connecting plateon the insulation plate. During actual processing, only a certain number of metal inserts need to be arranged at the joint of the insulation plate and the metal connecting plate at intervals, and compared with the prior art, the area, prone to cracking, between the insulation plate and the metal connecting plate is greatly reduced, so that the risk of cracking at the joint of the insulation plateand the metal connecting pla