Simulated lung for respirator performance detection

The invention discloses a simulated lung for respirator performance detection, which comprises a simulated lung main body of a box structure formed by an upper cover and a lower cover, one side of the upper cover and one side of the lower cover are hinged, and springs are detachably arranged on the opposite sides of the upper cover and the lower cover; the upper end of the rubber air bag is connected with the inner wall of the upper cover, and the lower end of the rubber air bag is connected with the inner wall of the lower cover; a rotatable adapter is arranged on the upper surface of the upper cover, one end of the adapter is communicated with the rubber air bag, and the other end is communicated with a tested respirator; the device is compact in structure and easy to use, and various conditions are simulated by replacing different springs. 本发明公开了一种用于呼吸机性能检测的模拟肺，包括由上盖和下盖构成的箱体结构的模拟肺主体，上盖和下盖一侧铰接，相对侧可拆卸设置有弹簧；模拟肺主体内设置有橡胶气囊，橡胶气囊的上端连接上盖内壁，下端连接下盖的内壁；上盖上表面设置有可转动的转接头，转接头一端连通橡胶气囊，另一端连通被测呼吸机；本发明结构紧凑、易于使用，通过更换不同的弹簧模拟各种