The utility model discloses a kneeling type
sputum excretion instrument which comprises a
sputum excretion unit which comprises a main
machine and a waistcoat, two first guide pipes are installed on the main
machine, two second guide pipes are installed on the waistcoat, the first guide pipes are in threaded connection with air guide pipes, and the ends, away from the first guide pipes, of the air guide pipes are in threaded connection with the second guide pipes. A storage
assembly used for storing the air guide
pipe is arranged at the bottom of the main
machine. The protection pad is taken out from the elastic storage bag, the patient kneels on the protection pad, then lies on the front, holds the supporting pad from the first groove and puts the jaw on the second groove, the posture is comfortable, the protection pad protects the knees, the posture of kneeling and
lying on the front facilitates
sputum excretion, after sputum excretion is finished, the air guide
pipe is detached, and the patient can conveniently carry out sputum excretion. And then one end of the air guide
pipe is in threaded connection with one of the threaded cylinders, then the air guide pipe is wound around the bottom of the convex column, and the other end of the air guide pipe is in threaded connection with the other threaded cylinder, so that the air guide pipe is convenient to store.