Pumping wellhead blowout preventer

The utility model provides a pumping wellhead blowout preventer, pumping wellhead blowout preventer includes: include: lubricator, pipe joints and packing box, the packing box sets up pumping wellheaddepartment, pipe joints connects the lower extreme of packing box, sealed the cup jointing of one end of lubricator pipe joints is last, just keeping away from of lubricator pipe joints's one end isthe blind end, so that when pumping wellhead took place the oil spout, fluid passed through in proper order pipe joints with sealed after the packing box in the lubricator. The utility model providesa pumping wellhead blowout preventer can guarantee pumping wellhead's sealed effect to prevent that pumping wellhead from spouting oil spraying gas. 本实用新型提供种抽油机井口防喷装置，所述抽油机井口防喷装置包括：包括：防喷管、油管接头以及盘根盒；所述盘根盒设置在所述抽油机井口处，所述油管接头连接在所述盘根盒的下端，所述防喷管的端密封套接在所述油管接头上，且所述防喷管的远离所述油管接头的端为封闭端，以使所述抽油机井口发生喷油时，油液依次经所述油管接头和所述盘根盒之后被密封在所述防喷管中。本实用新型提供的抽油机井口防喷装置，可保证抽油机井口的密封效果，防止抽油机井口喷油喷气。