Core holding unit with adjustable quick installation core plug

A core holding unit with an adjustable quick installation core plug consists of an end cover, a rubber barrel core plug, a stop core plug, a main body, an adjusting core plug, a movable baffle fin, an adjusting hand wheel, a cylindrical pad and a core, wherein the stop core plug is connected with the end cover at one end of the main body, inserted in the rubber barrel and pressed on the core through the end cover and the rubber barrel core plug; the end cover is in threaded connection with the main body and tightly presses the rubber barrel core plug; the adjusting core plug is connected with an end cover at the other end of the main body through the movable baffle fin, inserted in the rubber barrel and pressed on the cylindrical pad through the movable baffle fin and the rubber barrel core plug; the cylindrical pad is pressed on the core; the end cover is in threaded connection with the other end of the main body and tightly presses the rubber barrel core plug; and the periphery of the middle of the main body is provided with a pressure source interface. The core holding device is convenient and fast to be installed and take the core, and shortens the test time of the core.