Bottom ring flange dismounting device of long -range plasma system

The utility model discloses a bottom ring flange dismounting device of long -range plasma system, including location fixed bolster, ring flange connecting piece and motion rotary screw, the location fixed bolster has support plane and a connected a plurality of supporting legs, supporting legs be used for conflicting around the ring flange main part bottom surface of long -range plasma system, and the ring flange connecting piece is used for dismantling and is connected to the ring flange bottom surface, and motion rotary screw head passes the support plane to with ring flange connecting piece bottom formation screw -thread fit, its afterbody that is located the support plane outside has limit structure, can avoid because of manual demolish ring flange atress inequality arouse about the phenomenon such as collide with that leads to of skew take place, promote the success rate of dismouting by a wide margin, reduce the dismouting time to can avoid damaging the emergence of the follow -up defect, the leak rate