Artifical air flue gasbag relief valve

The utility model provides an artifical air flue gasbag relief valve, includes, the gas injection mouth that valve body and valve body one side set up and the inflation inlet of other end setting, and its characterized in that: be provided with the automatic pneumatic valve that ends in the inboard of inflation inlet, the valve body is connected respectively to automatic baffle, the bottom plate that ends the pneumatic valve, installs spring A on the bottom plate, and the loop bar suit is in spring A, and the roof bonding rubber pad A of loop bar one end is equipped with the gas pocket on baffle and bottom plate. The valve body is connected with the bleed valve that the lower part set up, is equipped with a gas vent on the valve body, is equipped with the rubber pad B who links to each other with gas vent shutoff formula in the bleed valve, and rubber pad B bonds with the roof that telescopic link upper portion set up, and the cover is equipped with spring B on the telescopic link, and the bleed valve bottom is equipped with the air vent. The utility model discloses ensureing that artifical air flue balloon pressure maintains 25cmH2O, avoiding the airway secretion mistake to avoid hypertonia to lead to the fact the damage of air flue mucosa when inhaling again, the single gas injection is accomplished with pressure control is synchronous, need not to relapse the adjustment of working pressure table, labour saving and time saving.