Intermittent-principle-based cutting device for plastic drainage pipeline

The invention relates to the technical field of drainage engineering, and discloses an intermittent-principle-based cutting device for a plastic drainage pipeline. The device comprises a main gear, asub-gear meshes with the lower portion of the main gear, a shaft rod is connected to the sub-gear, a toothed rod is connected below the shaft rod, a first gear and a second gear mesh with the left side and right side of the toothed rod respectively, a first sector gear meshes with the first gear, a second sector gear meshes with the second gear, a first connecting rod is connected below the firstsector gear, a second connecting rod is connected below the second sector gear, a first rotating shaft is connected below the toothed rod, a second rotating shaft is connected to the first connectingrod, and the second connecting rod is connected with a third rotating shaft. According to the device, through the cooperation among the structures, a series of operations of clamping, loosening and trimming the pipeline are ach