<p>The respiratory triggered tooling equipment is a device that detects the success triggering rate of ventilators, which is essential for ensuring patient safety. With the goal of optimizing device performance, this paper aims to enhance the rationality of simulated inspiratory actions by analyzing flow field characteristics, thereby improving the system’s accuracy and stability. Focusing on the flow field of the key components of the respiratory triggered tooling equipment, this paper first clarifies that the key components are the vacuum ejector and the two-position three-way solenoid valve, and establishes the mechanical structure model of the components. Then, the relationship between the influencing factors and performance parameters of the two key components is simulated and analyzed. Finally, experiments are carried out to verify the accuracy of the model, and measures to optimize the performance of the equipment are proposed.</p>