Sheep cervix passing intrauterine insemination device

The utility model belongs to the technical field of animal husbandry artificial insemination, and provides a sheep cervix-passing intrauterine insemination device which comprises a gun head, a gun cover and a conveying pipe. A butt joint is fixed to the right side of the gun head and extends rightwards, a butt joint cavity is formed in an inner cavity of the butt joint, a filling opening is formed in the front side face of the gun head, a filling cavity is formed in the inner cavity of the gun head, the filling opening is inwards communicated with the filling cavity, and a semen deposition head is arranged on the left side of the filling cavity. A buckle is arranged on the left side of an inner cavity of the gun head, the buckle is embedded into the side wall of the inner cavity of the gun head, the whole gun cover is in a cone shape with the small left portion and the large right portion, a clamping ring is arranged on the right side of the gun cover, a semen deposition opening is formed in an inner cavity o