Protective rib external connection type cable protector

The utility model discloses a cable protector with externally connected protective ribs, which belongs to the technical field of petroleum underground construction auxiliary devices and comprises a left protective flap, a right protective flap, a shaft lever, an axial rib, a loop, a chuck and a locking nut. Each of the left protection flap and the right protection flap comprises two half tile-shaped hoop bodies; the semi-tile-shaped hoop bodies corresponding to each other are combined to form an annular hoop; the two ends of the shaft rod form annular hoops respectively, every two corresponding half-tile-shaped hoop bodies are connected through a bolt, and the shaft rod is provided with a threaded part. The axial rib comprises a strip-shaped rib plate and rib plates on the two sides, the two ends of the strip-shaped rib plate are connected with the two half tile-shaped hoop bodies of the left protection flap respectively, the strip-shaped rib plate and the rib plates on the two sides form a T-shaped clamping