Damping-adjustable fitness circular pipe surface grinding shock absorption structure

The invention relates to the technical field of fitness equipment, and discloses a damping-adjustable fitness circular pipe surface grinding shock absorption structure. The structure comprises a bidirectional lead screw, the outer ring surface of the bidirectional lead screw is movably sleeved with a lantern ring, the lower end of the lantern ring is movably sleeved with a limiting rod, the lowerend of the limiting rod is movably meshed with a grinding rod, push rods are fixedly connected to the surface of the bottom end of a fixing frame, outer rings of the push rods are movably sleeved withdamping pipes, outer rings of the damping pipes are sleeved with springs in a surrounding mode, the inner walls of the damping pipes are fixedly connected with damping plates, through holes are formed inside the damping plates, the lower ends of the interiors of the damping pipes are movably sleeved with stop blocks, and inner rings of the stop blocks are movably sleeved with rotating rods. According to the damping-adjust