The invention discloses an energy-saving semi-passive
lower limb exoskeleton based on lasso driving. The energy-saving semi-passive
lower limb exoskeleton comprises a hip joint mechanism, a
knee joint mechanism connected to the
tail end of the hip joint mechanism, an
ankle joint mechanism connected to the
tail end of the
knee joint mechanism, a hip joint motor mechanism arranged on the hip joint mechanism, and an impulse motor mechanism arranged on the hip joint mechanism. The hip joint mechanism comprises a
right hip joint mechanism body and a left hip joint mechanism body, the
knee joint mechanism comprises a
right knee joint mechanism body and a left knee joint mechanism body, and the
ankle joint mechanism comprises a
right ankle joint mechanism body and a left
ankle joint mechanism body. The hip joint motor mechanism comprises a
right hip joint motor mechanism body and a left hip joint motor mechanism body, and the impulse motor mechanism comprises a right impulse motor mechanism body, a left impulse motor mechanism body and a back plate. According to the energy-saving semi-passive
lower limb exoskeleton, the quantity of active freedom degrees is small, the quantity of passive driving freedom degrees is large, required driving energy is little, the
mass and the
inertia of moving joints are effectively reduced, and
power consumption is lowered.