Resistance pulley structure, rowing machine, and rowing high-position pull-down integrated machine

A resistance pulley structure, comprising symmetrical stay cord assemblies, transmission assemblies, resistance assemblies and driving parts;

• wherein
• the stay cord assemblies comprise a stay cord, a first fixed pulley, a movable pulley block and a second fixed pulley block;
• the movable pulley block comprises a left movable pulley and a right movable pulley;
• the second fixed pulley block comprises a second left fixed pulley and a second right fixed pulley;
• a rotation direction of the second fixed pulley block is perpendicular to a rotation direction of the first fixed pulley;
• after the stay cord bypasses the first fixed pulley, two ends of the stay cord bypass the left movable pulley and the right movable pulley respectively, then bypass the second left fixed pulley and the second right fixed pulley respectively, the two ends of the stay cord are respectively connected to one driving part after bypassing the second left fixed pulley and the second right fixed pulley;
• and two driving parts pulls the movable pulley block to rotate and slide through the stay cord, the first fixed pulley and the second fixed pulley;
• a third fixed pulley is provided between the movable pulley block and the transmission assemblies, and the third fixed pulley is connected to the resistance assemblies through the transmission assemblies.