Continuous laying device for steel pipelines

The utility relates to a continuous laying device for steel pipelines, and belongs to the field of pipeline laying devices. The continuous laying device is provided with a main vehicle body and is characterized in that one end of a main slide plate chain and a restoring chain wheel are fixed to the main vehicle body; a driving slide plate lever, a driving slide plate and a driving slide plate chain wheel are hinged with each other; the main slide plate chain wheel and the main slide plate chain form a movable pulley block; the main slide plate chain is hinged with a pull rod, a punch and a restoring chain; the restoring slide plate is fixed onto the restoring chain; a main slide plate inclination block, a main slide plate rocker arm and a main slide plate cam are mounted onto the driving slide plate; and a restoring inclination block, a restoring rocker arm and a restoring cam are mounted onto a restoring slide plate. By adopting the continuous laying device for the steel pipeline, the pipelines can be automa