The utility model provides a bolt hole, as an organic whole with all bolted connection through the fixed plate, finally through the bolt with the groove seat that outboard side rubber fender structure is inhaled to hank sets up the recess in the seat of groove, simultaneously set up the concave station in the outside of block rubber, sets up two more than or in the concave station and an on the fender that the block rubber is fixed and is inhaled the ship at the hank. On the one hand, the fixed plate can provide spacing and barrier effect, the deformation back takes place at the block rubber for on the other hand, can produce a plurality of direction indefinite interact power between the deformation bump of fixed plate and block rubber to will be original change the combination for a plurality of indefinite directive effects power with the anti power of impact force opposite direction's bolt, make the deformation degree of restriction block rubber in its certain degree.