Submarine cable bending limiter

The submarine cable bending limiter comprises a shell, threaded holes are machined in the inner sides of a plurality of round holes, two pre-positioning mechanisms are arranged on the outer side of the shell, each pre-positioning mechanism comprises a transverse plate, a positioning groove and a rubber block, the back face of each transverse plate is fixedly connected with the front face of the shell, the bottom of each transverse plate is fixedly connected with the corresponding positioning groove, and the rubber blocks are fixedly connected with the positioning grooves. A rubber block is machined on one side of the bottom of the transverse plate. The utility model relates to the technical field of submarine cable bending limiting structures, realizes the pre-positioning of the two shells during connection through the matching among the shells, the threaded holes and the rubber blocks, and solves the problems that the size of the existing bending limiter is relatively large due to the size of a submarine cab