The utility model discloses a based on rotating revolution mechanic for fort, comprising a base plate, the bottom fixedly connected with standpipe of bottom plate inner wall, the surface cover of standpipe is equipped with the sleeve pipe, and the sheathed tube bottom fixed surface that is located the standpipe is connected with the roof, the inside that the bottom plate just extended to the bottom plate is run through to the bottom of roof, the outer fixed surface that the bottom of roof lies in the standpipe is connected with a conical tooth wheel, and one side meshing of conical tooth wheelhas the 2nd a conical tooth wheel, one side of standpipe is run through has the push pedal, one side of push pedal lies in standpipe inside a fixedly connected with wire rope and the 2nd wire rope respectively, the utility model relates to a rotatory revolution mechanic technical field for the fort. This based on rotating revolution mechanic for fort can effectually carry out the chucking, can fix when need not rotating, prevents the condition of skew, the while need can be very convenient rotatory the time the unblock of carrying on, promoted work efficiency.