Compaction degree intelligent detection device for road construction compaction

The utility model belongs to the technical field of roadbed compaction degree detection, and discloses an intelligent compaction degree detection device for road construction compaction, which comprises a vehicle body, a collection box, a negative pressure pump and a connecting hose, two support columns and a top plate are fixedly mounted at the top of the vehicle body, a through hole is formed in the top of the vehicle body, and the negative pressure pump is arranged in the through hole. A reset groove is formed in the inner wall of the through hole, a limiting plate is movably clamped through the reset groove, a containing groove is formed in the left side of the top of the vehicle body, a clamping groove is formed in the left side of the inner wall of the containing groove, and a second spring is movably connected into the clamping groove in a sleeved mode. The movable plate, the motor and the isolation cylinder are pushed downwards through the first spring to move downwards, so that the bottom of the isol