Fastening mechanism for metal connecting sleeve

The utility model relates to the technical field of metal sleeves, and discloses a fastening mechanism for a metal connecting sleeve, which comprises a base, one side of the base is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is movably connected with a connecting sleeve, and the connecting sleeve is fixedly connected with the base. A movable block is fixedly connected to the outer wall of the connecting sleeve, a connecting piece is fixedly connected to one side of the movable block, a fixed block is fixedly connected to the top of the connecting piece, and an adjusting belt is fixedly connected to one side of the fixed block. According to the fastening mechanism for the metal connecting sleeve, the size can be adjusted, the fastening mechanism can be suitable for products of different types and sizes, the application range of the device is effectively expanded, the adaptability of the device