Frame type undercarriage brake hose connecting structure

The invention discloses a frame type undercarriage brake hose connecting structure. The structure comprises a buffer supporting column, a torque arm and a frame, wherein the torque arm is installed ona piston rod of the buffer supporting column through a first pin, the bottom of the piston rod is hinged to the frame, a hose A doing bending motion along with the torque arm is installed on the torque arm, a hose B doing pitching motion along with the frame is installed on the frame, a first adapter is fixedly installed at a first set point on the piston rod, a second adapter is fixedly installed at a second set point on the piston rod, a hard pipe is connected between the first adapter and the second adapter, the other end of the first adapter is rotationally connected with the hose A, andthe other end of the second adapter is rotationally connected with the hose B. According to the frame type undercarriage brake hose connecting structure, the stress state of an undercarriage brake hose is improved, and the ser