Multifunctional thrombus-preventing fixing support for lower limbs

The utility model discloses a lower limb multi-functional anti-thrombus fixing support, which comprises a fixing frame, a sleeve, a mounting frame and a supporting seat, the fixing frame is of a U-shaped structure, the vertically arranged sleeve is fixedly welded at the central position of the top end of the fixing frame, a movable rod is arranged above the sleeve, and the movable rod is connected with the mounting frame. A mounting frame of a U-shaped structure is fixedly welded to the top end of the movable rod, and a supporting base is movably connected between the two vertical inner walls of the mounting frame through two rotating shafts. A placement plate is integrally formed on the arc-shaped inner wall of the supporting seat, a breathable cavity is formed between the placement plate and the supporting seat, a breathable cotton cushion is bonded to the upper surface of the placement plate, a heating layer is arranged in the breathable cotton cushion, and a plurality of sets of breathable holes are evenl