Reverse osmosis device

The utility model provides a reverse osmosis device. Relates to the technical field of reverse osmosis. The reverse osmosis device comprises a sleeve and a reverse osmosis membrane arranged in the sleeve, a front end cover and a rear end cover are respectively arranged at two ends of the sleeve, two mounting substrates are fixedly mounted on the sleeve, two concave seats are arranged below the sleeve, rotating shafts I are rotationally mounted in the two concave seats, and rotating shafts II are rotationally mounted in the rotating shafts I; the two first rotating shafts are fixedly sleeved with connecting frames correspondingly, connecting plates are fixedly installed on the sides, away from each other, of the two connecting frames correspondingly, the tops of the two connecting plates are fixedly connected with the front end cover and the rear end cover correspondingly, and rectangular frames are slidably installed on the two installation base plates correspondingly. Fixed connecting plates are fixedly moun