Large rotten hole reinforcing device for rescuing ancient and famous trees

The utility model belongs to the technical field of ancient and famous tree protection, and particularly relates to a large-scale rotten hole reinforcing device for rescuing ancient and famous trees. The supporting frame is composed of a plurality of sleeves, connecting pieces and locking screws. The sleeves and the connecting pieces are arranged at intervals, are connected end to end, and are locked by the locking screws to form the support frame; a fixing frame is fixedly arranged on the sleeve; an adjusting screw rod is screwed on the fixing frame; the other end of the adjusting screw rod is screwed with a fixing plate; the distance of the fixing plate relative to the fixing frame can be adjusted through the adjusting screw rod; a spring is arranged between the fixing plate and the fixing frame; the adjusting screw rod is inserted into the spring; a mounting plate is detachably arranged on the fixing plate; an elastic layer is fixed to the side face, away from the fixing plate, of the mounting plate. And r