Rope type upper limb assisting exoskeleton

The invention relates to the field of human-assisted mechanical structures, in particular to a rope type upper limb power-assisted exoskeleton which comprises a back plate, force application structures are symmetrically installed on the two sides of the back plate, and each force application structure comprises a driving motor, a ratchet wheel and pawl protection mechanism, a shoulder supporting frame and a woven belt; the ratchet and pawl protection mechanism comprises an electromagnet, a ratchet, a pawl and a battery, the ratchet is connected with the output end of the driving motor, the pawl is rotationally connected with the back plate, and the head of the pawl is matched with the ratchet; the electromagnet is fixed to the back plate and located on the outer side of the head of the pawl and located on the rotating radius of the head of the pawl. The electromagnet is connected with an external power supply and is electrified to attract the pawl; the battery is used for supplying power to the driving motor