Collecting device for residue insulating oil in sampling container

The utility model discloses a collecting device for residue insulating oil in a sampling container, relates to the field of electric power tools, and solves the technical problems in the prior art that the insulating oil is wasted in the treating process of the insulating oil container, and lots of washing agent, washing water and water are consumed. The collecting device comprises a rack, wherein a box body of which the top is open is arranged on the rack; a supporting rack used for supporting an inverted container is arranged in the box body; a flow collecting concave trough of which the longitudinal section is in the shape of an inverted cone is arranged at the bottom of the box body; a flow discharge opening is formed in the bottom of the flow collecting concave trough. The collecting device is applied to recycle of the residue insulating oil in the container.