Image detection supporting device and image detection device for highway pavement diseases

The utility model relates to an image detection support device and an image detection device for highway pavement diseases, the image detection support device for highway pavement diseases comprises a first slide rail, a second slide rail, a third slide rail and a moving block, the first slide rail and the second slide rail are arranged in parallel; the two ends of the third sliding rail are slidably connected to the tops of the first sliding rail and the second sliding rail respectively, and a moving block used for installing an image detection mechanism is arranged at the top of the third sliding rail; the two ends of the third sliding rail are further connected with pull ropes correspondingly. A plurality of moving wheels are arranged at the bottom of the moving block, the moving wheels are connected to the side wall of the third sliding rail in a rolling mode, and at least one moving wheel is arranged on each of the two sides of the third sliding rail; the moving block is further provided with a driving m