Plugging device for long oil and gas conveying pipeline

The utility model provides a plugging device for a long oil and gas pipeline. The long oil and gas pipeline plugging device comprises a plugging bush and a pressing clamp, the plugging bush comprises two arc-shaped plugging pieces, the pressing clamp abuts against the two plugging pieces at the same time, the pressing clamp comprises two mounting frames, an adjusting frame and a pressing frame, the two mounting frames abut against the two plugging pieces respectively, and the adjusting frame abuts against the pressing frame. The two ends of the two mounting frames are connected through the adjusting frames respectively, the pressing frames are arranged on the adjusting frames, and the two pressing frames abut against two joints between the leaking stoppage pieces respectively. According to the plugging device for the long-distance oil and gas pipeline, the problem that an existing pipeline plugging scheme is poor in plugging effect is solved. 本实用新型提供一种长输油气管道封堵装置。所述长输油气管道封堵装置包括堵漏衬套和施压夹具，所述堵漏衬套包括二个弧形的堵漏片，所述施压夹具