Drain joint, drain assembly and drinking device

The invention discloses a drain joint, a drain assembly and a drinking device. The drain joint comprises a joint body, which is provided with a water inlet end and a water outlet end in the axial direction; an elastic clamping sheet and a stopping and blocking convex platform, which are installed on the outer periphery surface of the joint body and are arranged in the axial direction of the jointbody, wherein the joint body is suitable for penetrating through an installation hole formed in an installation plate through deformation of the elastic clamping sheet, the elastic clamping sheet after deformation recovery and the stopping and blocking convex platform are located on the two sides of the installation plate respectively and the installation plate is tightly pressed on the stopping and blocking convex platform through the installation plate. According to the embodiment of the invention, the drain joint has the advantages of convenient installation, high efficiency, high reliability and the like. 本发明公开了种排