Rock-soil strength detection device for engineering geological investigation

The utility model discloses a rock-soil strength detection device for engineering geological investigation, and relates to the technical field of civil engineering. The device comprises a device body, a protection plate and a detection box, the detection box is fixedly installed on the device body, the protection plate is movably installed on the detection box, one end of the protection plate is provided with a semicircular groove, the bottom end of the protection plate is movably connected with a push rod, the bottom end of the push rod is fixedly connected with a driving motor, and the driving motor is fixedly connected with the detection box. A mounting cavity is formed in the inner wall of the detection box, the driving motor is fixedly mounted in the mounting cavity, a rotating block is rotationally connected into the detection box, and the protection plate is arranged, the shaft end of the driving motor is used for driving the electric push rod to move, so that the protection plate can perform angle rot