Underground karst cave stretching-in type detection mechanism

The utility model belongs to the technical field of karst cave detection, and particularly relates to an underground karst cave stretching-in type detection mechanism which comprises a main rod and a main detection rod fixedly connected to the bottom end of the main rod, and at least four side detection rods are annularly distributed on the top of the main rod. The side detection rod comprises an adjusting rod rotating with the main rod and an extension rod slidably connected to the adjusting rod. The top of the main rod is rotatably connected with an adjusting mechanism used for adjusting and driving the side detection rod to roll. The adjusting rod can extend to the periphery, then a main detection probe on the main detection rod is formed to detect the condition of the whole karst cave, the adjusting rod is driven to rotate through the adjusting mechanisms at different positions according to the detection condition of the main detection probe, and after the length is adjusted through sliding of the extensi