High-impermeability drainage pipeline structure for municipal road construction

The utility model discloses a high-impermeability drainage pipeline structure for municipal road construction, and relates to the technical field of drainage pipelines. The locking assembly comprises a drainage pipeline, the locking assembly comprises a fixing plate, a threaded rod is rotationally installed on the outer side of the fixing plate, symmetrically-distributed grooves are formed in the side, close to the drainage pipeline, of a protruding part in a clamped mode, hexagonal nuts are arranged in the grooves in a sliding and clamped mode, and symmetrically-distributed through holes are formed in the side, away from the drainage pipeline, of the protruding part in a clamped mode. The connecting rod drives the threaded rod to rotate, so that the threaded rod moves on the hexagonal nut, the threaded rod and the hexagonal nut are matched to lock the two drainage pipelines, the sealing performance between the two drainage pipelines is improved through the sealing ring, and therefore the situation that leaka