Suspension arm of folding structure

• Main Author: LI JUNXI
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2012
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a suspension arm of a folding structure, and relates to the technical field of mechanical suspension arms, in particular to the technical field of suspension arms arranged on vehicles for hoisting cargoes. The technical defects of large occupied space and low hoisting height existing in the conventional suspension arm are overcome. The suspension arm comprises a pedestal, a fixed arm, a middle arm and a telescopic folding arm, wherein the bottom end of the fixed arm is fixedly arranged on the pedestal, and the top end of the fixed arm is movably connected with the tail end of the middle arm through a first rotating shaft; the front end of the middle arm is movably connected with the tail end of the telescopic folding arm through a second rotating shaft; a jacking middle arm is arranged between the fixed arm and the middle arm to lift a first turned oil cylinder by taking the first rotating shaft as a supporting point; and a jacking telescopic folding arm is arranged between the mid