Protective device for soil leaching tester

The utility model relates to the technical field of soil leaching tests, and discloses a protective device for a soil leaching tester, which comprises a lifting driving device and an isolation roll made of transparent flexible waterproof materials, one end of the isolation roll is arranged on the outer side of the other end, and a mounting bin is fixedly mounted on the outer side of the outer end. An isolation roll end driving device is arranged in the mounting bin, and the output end of the lifting driving device is connected with the mounting bin. According to the utility model, through the arrangement of the isolation roll, one end of the isolation roll can be controlled to move through the isolation roll end driving device according to the size of the inner cavity of the test container during use, so that the isolation roll is contracted, the isolation roll can be inserted into the test container, and the position of the isolation roll can be adjusted according to the height of the nozzle; and liquid spra