Restrain coal and gas outburst device

The utility model provides a restrain coal and gas outburst device, include: stretch into the water injection pipe in coal seam infusion hole, it has attach the hole sealing structure, the water supply main pipe of intercommunication water injection pipe, insert water supply main pipe's still water water injection unit, pulse power pack respectively and supply the nitrogen gas unit, still water water injection unit is used for to the fluming water among the water supply main pipe or the aqueous solution, pulse power pack is used for applying pulse hydraulic pressure to the fluid among the water supply main pipe, supply the nitrogen gas unit to be used for carrying nitrogen gas to water supply main pipe. Accessible coal seam infusion realizes effectively that coal and the outstanding of gasrestrain, improve the security to the coal seam infusion poor to the gas permeability also can gain ideal effect. 本实用新型提供种抑制煤与瓦斯突出装置，包括：伸入煤层注水孔的注水管，其附设有封孔结构；连通注水管的供水主管；分别接入供水主管的静水注水单元、脉冲动力单元及供氮气单元；所述静水注水单元用以向供水主管中输送水或水溶液；所述脉