Stretcher pull rod connection structure that keeps silent, the pull rod of keeping silent is equipped with the hole with the wire rope link for U type structure, the U type structure department of thepull rod of keeping silent, two slots about the hole inboard is equipped with, the pull rod of keeping silent passes through the round pin hub connection with wire rope, circlip for the mounting holein the ditch inslot, the outer transition angle and the interior transition angle of the pull rod 1U type of keeping silent mechanism are round angle structure. The utility model discloses the pull rod is fixed firm with round pin axle, and the condition of horizontal drunkenness no longer appears in the round pin axle, has avoided because of the transversely emergence of the connecting rod deformation and fracture condition of keeping silent that produces of drunkenness of round pin axle, ensured to keep silent in pressing from both sides tight and return action, keep silent the pull rod theC template can be smooth and easy pass through, the some institutional advancements of the inside and outside transition of the pull rod U type of keeping silent structure have improved the pull rodanti -deformation strength that keeps silent, have also reduced the pull rod production deformation fracture's that keeps silent risk, it lasts the pinch -off blades material at panel stretcher straightening in -process to have realized keeping silent, provides the assurance for reaching anticipated panel stretcher straightening effect.