The invention is to provide a pressure relief valve structure of a nose aspirator,A pressure relief valve is arranged on the suction pipe of the nose aspirator,The pressure relief valve is composed of a shellA caprockOne adjustment knobI. adjustment seatFixed boltOne valve bodyA springA plug block and a whistle seat；So,When attracting users' snivels,If the suction head of the nasal aspirator accidentally contacts the nasal mucosa of the user and does not know to continue to inhale,With the design of relief valve,It can prevent injury to the user's nasal mucosa,Therefore, it is very safe in use.本創作係在提供一種吸鼻器之洩壓閥結構，主要係於吸鼻器之吸氣管上設有洩壓閥，該洩壓閥係由一外殼、一蓋體、一調整旋鈕、一調整座、一定位螺栓、一閥體、一彈簧、一塞塊及一鳴笛座所組成；如此，當在吸引使用者之鼻涕時，若吸鼻器之吸頭不小心接觸到使用者的鼻黏膜而不知仍持續進行吸氣動作時，藉由洩壓閥的設計，則可防止傷到使用者之鼻黏膜，故在使用上極具安全性。
