Rock soil sampling device for road construction surveying and mapping

The invention relates to the field of road construction, in particular to a rock-soil sampling device for road construction surveying and mapping, which comprises a bottom plate and a push handle, the push handle is fixedly mounted on one side of the bottom plate, and the bottom plate is provided with a collecting box for collecting rock-soil samples; the depth control mechanism is fixedly installed on the bottom plate, an extension mechanism is installed on the depth control mechanism, the depth control mechanism can drive the extension mechanism to ascend or descend, and the extension mechanism can be driven by the depth control mechanism to extend or retract; one end, far away from the extension mechanism, of the suspender is fixedly connected with a sampling mechanism. The rock-soil sampling device for road construction surveying and mapping provided by the invention not only can sample rock-soil, but also can drill harder soil into the rock-soil, manual operation is not needed, meanwhile, samples of diff