Foldable leg lift machine with a resistance linkage mechanism

A leg lift machine comprising:

• a base unit, a main handle unit, two drive levers, two pedals, a fixed pulley, a cable, and two resistance telescopic cylinders;
• wherein:
• the base unit includes a first stand, a second stand, a third stand, a first transverse rod, and a second transverse rod;
• the first transverse rod is placed on the ground;
• the second transverse rod is placed on the ground;
• the first stand has a lower end secured to the first transverse rod;
• the second stand has a lower end secured to the second transverse rod;
• the second stand has an upper end foldably and pivotally connected with a middle position of the first stand;
• the third stand has an upper end securely connected with an upper end of the first stand;
• the main handle unit has a lower end securely connected with a front section of the first stand;
• the main handle unit has an upper end provided with a handgrip;
• the two drive levers are disposed at two sides of the first stand;
• each of the two drive levers has an upper end pivotally connected with an upper section of the first stand and served as a fulcrum of rotation;
• the two drive levers reciprocally swing forward and backward and move along a curved trajectory;
• each of the two pedals is pivotally connected with a lower end of one of the two drive levers;
• the fixed pulley is pivotally mounted on a front side of the third stand;
• the cable is wound around the fixed pulley and has two ends connected with the upper end of each of the two drive levers;
• the two resistance telescopic cylinders are disposed at two sides of the third stand;
• each of the two resistance telescopic cylinders has a lower end pivotally connected with the third stand and an upper end pivotally connected with the upper end of one of the two drive levers;
• and
• the two drive levers are limited by the two resistance telescopic cylinders and the cable to reciprocally and interactively swing forward and backward.