Seepage tank locking hook

The utility model discloses a seepage tank locking hook. The seepage tank locking hook is composed of a support, a cylindrical bolt, a screw rod, a screw and a threaded buckle; the seepage tank locking hook is connected to a seepage tank cover by the support, when primarily-smashed folium sennae is filled into a seepage tank body, ethyl alcohol is adopted for eluting the folium sennae constantly, the seepage tank cover is buckled, the threaded buckle is manually lifted, a key groove in the side surface of the screw is clamped on the edge of the seepage tank body, then the threaded buckle is manually screwed constantly, the threaded buckle extrudes the screw to enable the seepage tank body and the seepage tank cover to be closely fitted constantly, and effective ingredient liquid of the folium sennae cannot be leaked between the seepage tank body and the seepage tank cover; the seepage tank locking hook can effectively ensure that the seepage tank body and the seepage tank cover are buckled closely, and the phenomenon of leakage of the effective ingredient liquid of the folium sennae is avoided.