The utility model relates to an inner structure of an urn,Including: a bile body and a bile lid；Among them,A holding space is arranged in the bile body,The inner wall of the opening at the top of the tank body is provided with an internal thread；The lid is attached to the top of the body,The outer wall of the lower edge of the lid is provided with an outer thread matched with the inner thread,Make the external thread fit on the internal thread；So,When the lid is fitted to the top of the body,It can be screwed to the internal thread through the external thread,So that the bile lid can be firmly connected to the top of the bile body,Even if there is an earthquake,It can also prevent the ashes in the inner liner from turning over.一種骨灰罈內膽結構，包括有：一膽體及一膽蓋；其中，該膽體內設一容置空間，該膽體頂部之開口內壁設一內螺紋；該膽蓋係蓋合於該膽體頂部，該膽蓋下緣外壁設一與該內螺紋相配合之外螺紋，使該外螺紋可螺合於該內螺紋上；藉此，該膽蓋蓋合於該膽體頂部上時，可透過該外螺紋螺合於該內螺紋上，令膽蓋可牢固接合於膽體頂部，即使發生地震，亦可防止内膽中骨灰翻倒出來。
