Passive shoulder joint assisting exoskeleton applied to automobile maintenance personnel

The invention relates to the technical field of power-assisted exoskeletons, in particular to a passive shoulder joint power-assisted exoskeleton applied to automobile maintenance personnel, which comprises a frame body, the frame body comprises a waistband, the surface of the waistband is fixedly connected with a support back plate, the surface of the waistband is fixedly connected with straps, the surface of the support back plate is connected with a support rod, and the support rod is fixedly connected with the shoulder joint. A connecting rod is connected to the surface of the supporting rod in an inserted mode. The control mechanism comprises a protective cover, and the protective cover acts on the two sides of the strap. Under the action of the control disc and the connecting rod, the supporting effect on rotation of the protective cover, the connecting shell and the control disc is achieved, under the meshing connection of the ratchet ring and the pawl, the limiting of the rotation angle of the protect