Stress releasing device for safety construction of offshore oil and gas pipeline

The utility model discloses a stress release device for safety construction of an offshore oil and gas pipeline, and relates to the technical field of stress release devices of offshore oil and gas pipelines. The device comprises a power rolling unit which is constructed to be used for applying pressure on the surface of the oil and gas pipeline and rotating and rolling around the oil and gas pipeline when being started; the power rolling unit comprises a power roller and a driving motor for driving the power roller to rotate; the power roller and the driving motor are both mounted on the power rack; the rolling chain is formed by connecting a plurality of driven rolling units; the head and the tail of the rolling chain are connected to the two ends of the power rack respectively, and the rolling chain rotates and rolls around the oil and gas pipeline under the traction of the power rolling unit; the driven rolling unit comprises a driven roller and a driven rack for mounting the driven roller; and the plural