The utility model relates to a facility maintenance device, belongs to the technical field of building
fire protection, and particularly relates to a building
fire protection facility maintenance device which comprises a base, a bearing table is arranged on the base, a protective door is rotationally connected to the bearing table, two tool boxes are connected to the bearing table in a sliding mode, and the device further comprises a limiting
assembly. The limiting
assembly comprises a first groove, a threaded ring, a
rotating disc, a
threaded rod, a second groove and a connecting rod. According to the tool box, the limiting
assembly is matched with the connecting rod through the first groove, the threaded ring, the
rotating disc, the
threaded rod, the second groove and the connecting rod, the
rotating disc is used for driving the connecting rod to rotate and controlling the
threaded rod to move up and down, the threaded rod is embedded into or away from the second groove, and therefore the tool box is fixed and taken; the fixing assembly is matched with a limiting column through a fixing box, a sliding frame, a transverse rod, a spring and the limiting column, the sliding frame is used for driving the limiting column to be embedded into the protective door, the protective door is fixed, and the safety of maintenance personnel is ensured during high-position maintenance.