Rock-soil core sample wave velocity testing system

The utility model relates to the technical field of wave velocity detection, and provides a rock-soil core sample wave velocity testing system which comprises a box body, a reel is rotatably connected in the box body, a lifting rope is wound on the outer side of the reel, one end, far away from the reel, of the lifting rope extends to the bottom of the box body and is fixedly connected with a connecting frame, and the bottom of the connecting frame is fixedly connected with a fixed box. A lead screw is rotationally connected into the fixing box, an L-shaped fixing frame is fixedly connected to the position, located on one side of the lead screw, of the top of the inner wall of the fixing box, a motor is fixedly connected to the top of one side of the L-shaped fixing frame, the output end of the motor is fixedly connected with a driving gear, and a driven gear is fixedly connected to the position, located on one side of the motor, of the outer side of the lead screw. The problems that in traditional detection