Sprayed concrete compression strength and impervious performance adjustable mobile sample preparation device

The utility model relates to a sprayed concrete compression strength and impervious performance adjustable mobile sample preparation device which comprises two long side plates, a locating sliding rod, square head screw rods, a bottom plate and a U-shaped wood plate, wherein a connecting base is arranged at the bottom end of each long side plate, the bottom plate is inserted in a groove of the connecting base, one connecting base is connected with one end of the locating sliding rod, a sleeve is arranged on the other connecting base, the other end of the locating sliding rod is inserted in the sleeve and is capable of sliding in the sleeve, a plurality of U-shaped grooves are uniformly formed in the two long side plates and the bottom plate, short side plates and the U-shaped wood plate are respectively inserted and embedded in the grooves, screw holes are formed in the bottoms of the two connecting bases, the square head screw rods penetrate through the screw holes, and two ends of each square head screw rod