Rock core holder with water cooling function

The utility model provides a rock core holder with a water cooling function. The rock core holder comprises a holder cylinder, a rock core holding assembly and various cylinder sealing assemblies, therock core clamping assembly is composed of a rubber sleeve, a rubber sleeve end plug and a clamping assembly sealing cap. The rubber sleeve end plug and the rubber sleeve are matched for use, so thatthe rock core can be tightly wrapped; the cylinder sealing assembly is composed of a cylinder end plug, a cylinder sealing cover, an annular sealing ring, a rubber gasket and a cylinder sealing cap.The barrel end plugs are arranged at the two ends of the barrel and are of a convex structure, the barrel can be effectively sealed, and hydraulic oil in the hydraulic cylinder is prevented from leaking. The rubber sleeve end plug is in threaded connection with the rubber sleeve, and the barrel sealing cover is in threaded connection with the barrel; and a water cooling system is designed at the periphery of the holder cyli