Breathing machine support arm frame

The utility model discloses a breathing machine supporting arm frame which comprises a fixing base, a damping rotating shaft, a first short supporting rod, a first damping hinge, a first long supporting rod, a second damping hinge, a second long supporting rod, a third damping hinge, a second short supporting rod, a metal bamboo joint pipe, a trachea clamp and a humidifier fixing mechanism. The humidifier fixing mechanism comprises a cross-shaped connecting piece which is arranged on the first long supporting rod and can slide up and down, a cross beam which can slide horizontally is arranged on the cross-shaped connecting piece and can slide horizontally, a sliding block which can slide horizontally is arranged on the cross beam and can slide horizontally, and a humidifier supporting arm which inclines upwards is connected to the upper face of the sliding block through a first knurled screw. A humidifier connecting seat is arranged at the upper end of the humidifier supporting arm, and a dovetail groove conn