Rotary excavating depth measuring device of long screw pile machine

The utility model discloses a long screw pile machine rotary excavating depth measuring device, which belongs to the technical field of long screw pile machine rotary excavating depth measuring, is installed at the bottom of a long screw pile machine power head shell, and comprises a base installed at the bottom of the power head shell, the base is connected with a connecting mechanism, the connecting mechanism is connected with a laser distance measuring sensor, and the laser distance measuring sensor is connected with the base. The laser distance measuring sensor is connected with a display controller, and the display controller is located in a cab of the long screw pile machine; and a detection head of the laser distance measuring sensor faces the ground. The drilling depth can be fed back in real time without replacing drilling tools with different lengths or adjusting the height of the drilling tools in advance through manual operation, and inconvenience caused by replacing the drilling tools and errors