The invention discloses a
respiratory tract negative pressure suction device for
emergency nursing. The device comprises universal wheels, a device shell, a cover plate, a first spring, a pressure cylinder, a
piston, a
piston rod, a pressing head, a vent valve and the like; a
breathing intubation tube on a lengthened
breathing tube is inserted into the
respiratory tract of a patient, a user presses a pressing head on a pressure cylinder, gas is generated after the
piston moves downwards, the cover plate is opened by air pressure, the gas is released, through closure by spring return, the pressing head drives the piston to lift upwards to generate negative pressure, a receiving chamber is connected through a first pipeline, the upper end of the receiving chamber sucks blockages sucked out of the
respiratory tract of the patient from the lengthened respiratory tube through a second pipeline and enters the receiving chamber, and a sliding rod is driven to slide left and right through airpressure in an arranged one-way valve, the
suction force is generated when the pressing head is lifted to enable a movable block on the sliding rod and the interior of the valve body to be in an openstate, and the other parts are closed to prevent blockage from flowing back.