Zinc alloy die-casting bottom shell structure of optical module transmitter

The utility model belongs to the technical field of optical modules, and particularly relates to a zinc alloy die-casting bottom shell structure of an optical module transmitter, which comprises a base, a sliding block is slidably connected in the base, a rotating rod is rotatably connected in the base, the rotating rod is connected in the sliding block through threads, a connecting block is fixedly connected on the sliding block, and the connecting block is fixedly connected on the base. A guide groove is formed in the base, a connecting block is slidably connected to the interior of the guide groove, a bottom shell is placed on the base, and a clamping block is fixedly connected to the connecting block. By arranging the clamping block, the rotating rod can be rotated to drive the clamping block to limit the bottom shell, so that the bottom shell is more stable during machining, and the bottom shell is provided with the first limiting groove and the second limiting groove, so that the bottom shell can better