Well cementation cement head pressure test fixing device

The utility model provides a well cementation cement head pressure test fixing device which comprises a base, a sliding block is fixed to the outer wall of the middle of the top of the base through bolts, two guide plates are connected to the two sides of the top of the sliding block in a sliding mode, the same first clamping ring is welded to the outer walls of the tops of the two guide plates, and clamping grooves distributed at equal intervals are formed in one side of the first clamping ring. A first fixing seat is welded to the end of the other side of the first clamping ring, a rotating rod is rotationally connected into the first fixing seat, a second fixing seat sleeves the other end of the rotating rod, a second clamping ring is welded to one side of the second fixing seat, and two buckles are fixed to one side of the second clamping ring through bolts; two supporting plates are welded to the opposite sides of the two guide plates correspondingly, and limiting holes distributed at equal intervals are