Fire-fighting pipeline mounting structure

The utility model discloses a fire-fighting pipeline mounting structure, and belongs to the technical field of fire-fighting facilities, the fire-fighting pipeline mounting structure comprises a connecting assembly arranged between fire-fighting pipelines, and the connecting assembly comprises flange plates fixed to the ends of the fire-fighting pipelines, sealing frame sleeves arranged on the two adjacent flange plates in a sleeving mode and fastening bolts arranged on the sealing frame sleeves in a penetrating mode; the cross section of the sealing frame sleeve is in a U shape, and the sealing frame sleeve is arranged around the fire fighting pipeline. The edges of the adjacent flange plates are arranged in the frame of the sealing frame sleeve, the fastening bolts sequentially penetrate through the two adjacent flange plates, the ends of the fastening bolts are sleeved with fastening nuts located outside the sealing frame sleeve, and the fastening nuts are in threaded connection with the fastening bolts. A