Water purifier filter element replacement and maintenance device and replacement method thereof

The invention relates to the technical field of water purifiers, and provides a water purifier filter element replacement and maintenance device which comprises a positioning groove plate, a groove used for containing a water purifier shell is formed in the positioning groove plate, and the four side walls of the inner surface of the positioning groove plate are each provided with a first telescopic driving piece; the telescopic end of each first telescopic driving piece is provided with a fixed frame strip, and the pipe head pulling mechanism is used for pulling and separating pipe heads at the two ends of the filter element. According to the technical scheme, the problems that in the prior art, in the using process of a water purifier, the filter elements need to be regularly replaced to keep good water purification capacity, and when the filter elements are replaced, due to the fact that the number of the filter elements is large, the position of an inner sleeve is not easy to position, the filter elements