Insulated enclosed high-voltage knife switch

The invention relates to the technical field of disconnecting links, in particular to an insulated closed high-voltage disconnecting link, which comprises a main body component, comprising a steel base, an insulating supporting column arranged on the steel base, a contact base arranged on the upper side of the insulating supporting column, a support arranged on the upper side of the contact base, a connecting base arranged on the support, a lower contact arranged on the upper side of the contact base and an upper contact arranged on the lower side of the connecting base. The insulator is arranged on the outer sides of the connecting seat and the lower contact; the insulating support plate is arranged on the upper side of the contact base; the fixing part comprises a connecting assembly arranged in the lower contact and a fixing assembly arranged in the connecting assembly; according to the utility model, the possibility that the upper contact and the lower contact are rusted can be reduced, and the upper cont