High-sealing-performance conveying and filtering device for natural gas conveying station

The utility model relates to the technical field of natural gas filtering, in particular to a high-sealing-performance conveying and filtering device for a natural gas conveying station, which is characterized in that bolts are respectively and movably arranged on a sealing cover in a penetrating manner in an equal-fillet distribution manner, the lower ends of the bolts are screwed and arranged in threaded holes in a penetrating manner through threads, a rotating rod is movably inserted on the sealing cover, and a driving gear is movably arranged in the sealing cover; the lower end of the rotating rod is fixedly connected with the driving gear, the bolts are movably sleeved with driven gears, the driven gears and the driving gear are arranged in a matched and meshed mode, the limiting strips are fixedly arranged on the bolts in an equal-fillet distribution mode, and the limiting strips are movably arranged in strip-shaped grooves formed in the driven gears. Synchronous rotation of the multiple bolts can be ac