Central pull rod for on-line cleaning of disc tube type reverse osmosis membrane

The utility model discloses a central pull rod for online cleaning of a disc tube type reverse osmosis membrane, and mainly relates to the field of reverse osmosis membrane cleaning. Comprising a cylindrical pull rod, and a vibration mechanism capable of generating vibration is arranged in the cylindrical pull rod. A mounting hole is formed in the cylindrical pull rod, the vibration mechanism is detachably arranged in the mounting hole, and an operation part is arranged on the vibration mechanism. The utility model has the beneficial effects that the vibrating mechanism is arranged in the central pull rod, so that the vibrating mechanism sends out ultrasonic waves and uniformly transmits the ultrasonic waves to the whole reverse osmosis membrane group, stubborn rust is separated from the structure in the reverse osmosis membrane group through the impact of the ultrasonic waves, and the rust is washed away by water flow during normal work, so that the rust is prevented from being damaged. And the online cleani