Dry density detection device for rock-fill dam filling material

The utility model discloses a dry density detection device for a rock-fill dam filling material, and relates to the technical field of dry density detection, in particular to the dry density detection device for the rock-fill dam filling material, which comprises an upper ring and a lower ring, a lantern ring is fixedly connected between the upper ring and the lower ring, and the surface of the lantern ring is fixedly connected with a storage box. Through the arrangement of an adjusting assembly, a detection assembly and a limiting assembly, pulling handles on the two sides are pulled, then springs are retracted, limiting blocks are pulled out of a half groove A and a half groove B, then a moving block and a lifting rod are bent, a horizontal probe can be conveniently stored in a storage box, the horizontal probe is protected and prevented from being damaged, then a motor drives a transmission rod to rotate, and the transmission rod is driven by a motor to rotate. Then the transmission rod drives the lead scr