Hydrostatic rock core holder

The utility model relates to the technical field of rock core clamping, and discloses a hydrostatic rock core holder which comprises a holder main body, a clamping support column, a movable clamping mechanism and a clamping limiting plate, the bottom of the holder main body is fixedly connected with the clamping support column, the bottom end of the clamping support column is fixedly connected with the movable clamping mechanism, and the movable clamping mechanism is fixedly connected with the clamping limiting plate. A clamping limiting plate is movably connected to the bottom of the movable clamping mechanism, a supporting plate is connected to the bottom of the movable clamping mechanism in an embedded mode, a tiny observer is fixedly connected to one side of the top of the clamping device body, the tiny observer can effectively improve the convenience of the clamping device body, contact friction between the movable clamping mechanism and a to-be-clamped object is well increased, and the clamping effect o