Low-noise mixed flow fan

The utility model discloses a low noise mixed flow fan in the mixed flow fan field, including casing, support, motor and fan, the support is fixedly connected with the inside wall of casing, the motor is fixedly connected with the inside of the support, the fan is fixedly connected with the output shaft end of the motor, and the fan is fixedly connected with the output shaft end of the motor. Connecting plates are symmetrically and fixedly connected to the bottom of the outer side wall of the shell, extrusion blocks are symmetrically and fixedly connected to the middle positions of the bottoms of the limiting plates, and according to the low-noise mixed flow fan, when vibration is generated during device operation, the vibration is transmitted to the connecting plates, so that the limiting plates slide in the mounting boxes to drive the extrusion blocks to extrude the moving blocks; and the movable block drives the sliding block to move in the sliding groove, the buffer spring is extruded, the buffer spring d