Anti-falling type connecting chain with protective sleeve structure

The utility model discloses an anti-drop connecting chain with a protective sleeve structure, which comprises a shell and a protective sleeve, the shell is of a cuboid tubular structure, one end of a pulling tube penetrates through the interior of the shell, a lifting rod is arranged at the bottom end of the pulling tube, cover plates are symmetrically arranged on two sides of the lifting rod, and a limiting spring is arranged between the upper end of each cover plate and the pulling tube; the cover plate is of an L-shaped structure; and one end of the positioning rod is installed at one end of the cover plate, a protective sleeve is installed at the other end of the positioning rod, and the positioning rod penetrates through the interior of the side plate. According to the anti-falling type connecting chain with the protective sleeve structure, the shell and the side plates in the device are positioned and installed, so that the shell and the side plates form a cuboid tubular structure, positioning pipes in