A multi-level Palin structure.Including: a housing,Define a containment space.And two openings are arranged to connect the containing space with each other.Two rotating shaft.Each of them is provided with the aforementioned openings.A limit end larger than the opening is arranged in the space；A ball structure,The utility model comprises a plurality of first balls arranged between an opening adjacent to the shell and a corresponding limiting end.A plurality of second balls arranged between the shell adjacent to another opening and the corresponding limit end thereof,And a plurality of third balls arranged between the two limit ends.By way ofThe rotating shaft can rotate smoothly and flexibly relative to the shell.High flexibility in use.High natural rotation,It can improve the probability of medium fish.Increase fish catch.一種多層次培林之轉環構造，包括：一殼體，界定一容置空間，並設置連通該容置空間而相對之二開口；二轉軸，各自穿設前述開口，並皆於該容置空間中設有尺寸較前述開口大的一限位端；一滾珠結構，包含於該殼體鄰近其中一開口之處與對應的其中一限位端之間所設置的複數第一滾珠、於該殼體鄰近其中另一開口之處與對應的其中另一限位端之間所設置的複數第二滾珠，以及前述二個限位端之間所設置的複數第三滾珠，藉之，使前述轉軸可順暢靈活地相對該殼體旋轉，使用時高靈活性、高自然的旋轉度，能提高中魚機率，增加魚獲量。
