High-voltage tubular bus telescopic fitting support

The utility model discloses a telescopic fitting support for a high-voltage tubular bus. The telescopic fitting support comprises a base, a pillar, a support frame, a first tubular bus clamp and a second tubular bus clamp, a supporting column is fixedly arranged on the base, a supporting frame is arranged on the supporting column, and a first tubular bus-bar clamp and a second tubular bus-bar clamp are arranged at the two ends of the supporting frame respectively. A first rolling shaft is fixedly arranged at the bottom of the first tubular busbar clamp, and two ends of the first rolling shaft are slidably connected with the first sliding grooves in a penetrating manner; a second rolling shaft is fixedly arranged at the bottom of the second tubular busbar clamp, and two ends of the second rolling shaft are slidably connected with the second sliding grooves in a penetrating manner; a sliding block is arranged at the bottom of the second tubular busbar clamp, the bottom of the sliding block slides on the surface