Lifting frame and fire-fighting spraying pipeline mounting device

The utility model relates to the technical field of fire-fighting spraying pipeline installation, in particular to a lifting frame and a fire-fighting spraying pipeline installation device.The lifting frame comprises an installation plate, a rotating block, a second threaded rod, a threaded barrel and a pipeline connecting mechanism, the upper end of the second threaded rod is in threaded connection with the inner wall of the threaded barrel, and the lower end of the second threaded rod is rotationally connected with the installation plate through the rotating block; first threaded rods are slidably connected to the left end and the right end of the mounting plate, and the lower ends of the first threaded rods are fixedly connected with one end of a pipeline connecting mechanism. When an object on a wall needs to be avoided, a hand-screwing bolt is unscrewed, an adjusting nut is rotated, a second threaded rod is driven to drive a mounting plate to move, the height of the mounting plate is adjusted, meanwhile,