Dry-grinding-resistant fluoroplastic magnetic drive pump

The utility model relates to the technical field of magnetic drive pumps, and discloses an anti-dry-grinding fluoroplastic magnetic drive pump which comprises a motor and a second magnet limiting sleeve, the motor is movably sleeved with a motor protecting sleeve, the front end of the motor protecting sleeve is fixedly connected with a sealing sleeve, a sealing gasket is installed in the sealing sleeve, and the sealing gasket is fixedly connected with the motor protecting sleeve. And the outer portion of the sealing sleeve is movably sleeved with a protective cover, a rotating column is installed on one side of the motor, a connecting column is fixedly connected to one side of the second magnet limiting sleeve, and a rotating clamping sleeve is installed on the outer portion of the connecting column. According to the anti-dry-grinding fluoroplastic magnetic drive pump, sliding grooves are formed in a first magnet limiting sleeve and a second magnet limiting sleeve at equal intervals, meanwhile, arc-shaped gro