Multifunctional movable joint

The utility model discloses a multi-functional moving joint, which comprises a connecting head. The connecting head is internally arranged with a rotating outer sleeve which is internally positioned with two eccentric ladder through holes; an O-shaped ring is arranged between the rotating outer sleeve and the contacting revolution surface of the connecting head which is positioned with end cover parts at one end. With the outer sleeve and the connecting head capable of relative rotating but not unhitching mutually, only rotates the outer sleeve of the moving joint but not the charge pump assembly and the sleeve milling pipe when connecting the moving joint and the sleeve milling pipe, thus the utility model effectively avoids the relative rotation between the charge pump assembly and the sleeve milling pipe inner wall to ensure the small flat cable not being damaged. The utility model has the advantages of reliable performance, convenient utilization and long service life.