Joining structure of flow path member and column

Provided are a joint structure of a flow path member and a column, wherein a plurality of components are not used due to a complicated structure, and a member represented by a column can be easily attached to and detached from a member represented by a column attachment and detachment unit by a simple structure. The joining structure of a flow path member enables the flow of a liquid by fitting a second member having a second flow path open at a first end surface of the first member and aligning the first flow path and the second flow path open at a second end surface of the second member to a first member having a first flow path open at a second end surface of the first member. The second end surface is formed as an inclined surface inclined from the opening of the second flow path toward the periphery. 提供不因复杂的构造而使用许多部件、通过简单的构造而能够将由柱代表的构件相对于由柱装卸单元代表的构件容易地装卸的流路构件的接合构造及柱。流路构件的接合构造通过使具有第二流路的第二构件向具有第一流路的第一构件装配，将第一流路和第二流路互相对位而使液体的流动能够进行，其中，第一流路在第一构件中的第一端面开口，第二流路在第二构件中的第二端面开口，第二端面形成为从第二流路的开口朝向周围倾斜的倾斜面。