This creation of a cat litter house structure with a transformable door stop structure mainly includes: a barrel, a first upper cover, a second upper cover, and a baffle plate. The first upper cover and the second upper cover are installed at the installation opening of the barrel and can be individually installed. To change to correspond to the opening position in the barrel, the first extension of the first upper cover described above is provided correspondingly and has a first pivoting structure with a first pivot part, and the second extension of the second upper cover is provided correspondingly and has a second pivot The second pivoting structure of the part, the distance between the first pivoting part and the abutting part is shorter than the distance between the second pivoting part and the abutting part. Therefore, when the rotation of the baffle is to be restricted, the baffle can be pivoted Between the first pivotal portion and the abutting portion, on the contrary, when the baffle plate is not restricted by the structure of the abutting portion and is rotatable, the baffle plate is pivotally connected between the second pivotal portion and the abutting portion. The arrangement of the first upper cover and the second upper cover makes it more flexible and selective whether the baffle can allow the cat to enter the barrel freely.本創作一種可變換門檔結構之貓砂屋結構，主要包括: 桶體、第一上蓋、第二上蓋及檔板，其中第一上蓋及第二上蓋安裝於桶體的安裝口，且可個別至換對應於桶體中的開口位置，前述中的第一上蓋延伸二相對應設置且具有第一樞接部之第一樞接結構，第二上蓋延伸二相對應設置且具有第二樞接部之第二樞接結構，第一樞接部至抵靠部之間距離短於第二樞接部至抵靠部之間距離，因此，當要限制檔板轉動時，檔板可樞接於第一樞接部及抵靠部之間，反之檔板欲不受抵靠部結構限制且可轉動時，則檔板樞接於第二樞接部及抵靠部之間，藉由第一上蓋及第二上蓋的設置使檔板可否讓貓自由進入桶體更顯具靈活的選擇性。
