Quenching oil storage tank

The utility model discloses a quenching oil storage tank, which relates to the technical field of quenching oil storage, and comprises a tank body and a collecting cylinder, rectangular feed ports are symmetrically arranged on the collecting cylinder, a threaded pipe is arranged at the bottom end in the collecting cylinder, a threaded hole is arranged at one end of the threaded pipe, a threaded rod is arranged in the threaded hole in a matched manner, and the threaded rod is connected with the collecting cylinder. A mounting plate is rotationally arranged at one end of the threaded rod, the two ends of the mounting plate are fixedly connected with the inner side of the tank body, a sealing plate is rotationally arranged at the other end of the threaded rod, and the sealing plate is arranged in a circular mounting hole in the upper end of the tank body in a matched mode; and a locking mechanism facilitating fixing of the sealing plate is arranged at the position, corresponding to the fixing plate, of the tank