Individually ventilated cages

The utility model provides an individually ventilated cages, including cage box's end box and two parts of lid, this end box is suitable for reading to be equipped with a recess outwards all around, and the embedded exerted sealing washer of tip thin -sheet type that is equipped with of this recess, and this end box distributes in the recess below and is equipped with a plurality of elasticity barb, and this lid inner wall all around is the conical surface of gathering together slightly towards the top, and the minimum internal diameter of inner wall is lighter than the external diameter that the external diameter of sealing washer, the biggest internal diameter are greater than the sealing washer, and this lid is equipped with the constant head tank that the elasticity barb is joined in marriage to the card at the inner wall of end opening root edge department. The application implementation the utility model discloses an individually ventilated cages, the assembly that has improved the sealing washer is sta