Cable body local protection sleeve capable of being installed later

The invention relates to the technical field of protective sleeves, in particular to a post-installable cable body local protective sleeve which comprises a first stainless steel outer sleeve component, a second stainless steel outer sleeve component is arranged at one end of the first stainless steel outer sleeve component, and a first HDPE inner sleeve component is arranged at one end of the first stainless steel outer sleeve component. A second HDPE inner sleeve part is arranged at one end of the second stainless steel outer sleeve part; the stainless steel outer sleeve is hinged through the first drawing and inserting elastic hinge component and the second drawing and inserting elastic hinge component, so that the stainless steel outer sleeve is more convenient to open and close, the HDPE inner sleeve is formed by cutting a whole round sleeve, and the HDPE inner sleeve can clamp and fix the inhaul cable by screwing a locking bolt in an inner sleeve fixing hole in the stainless steel outer sleeve. The stai