Noise reduction device for inflating massage air bag

• Main Authors: CHEN ZHONGJIAN, WU CAIWEN, QIU DECAI
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2023
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ARTIFICIAL RESPIRATION; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSESOR SPECIFIC PARTS OF THE BODY; HUMAN NECESSITIES; HYGIENE; MASSAGE; MEDICAL OR VETERINARY SCIENCE; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING ORSTIMULATING REFLEX POINTS IN THE BODY; PHYSICS; SOUND-PRODUCING DEVICES

The noise reduction device comprises a first air pipe, a second air pipe, an air valve, an air pump, the massage air bag and a cavity air bag, a small hole connector is arranged in the middle of the first air pipe, and the size of the cavity air bag is smaller than that of the massage air bag; the inner hole diameter of the small-hole connector is smaller than that of the first air pipe. By arranging the small-hole connector, the resistance of air entering the massage air bag from the cavity air bag can be improved, during inflation, the cavity air bag with the small size expands firstly, due to the fact that the cavity air bag is arranged in the middle, air flow enters the cavity air bag to be buffered firstly, a small part of air flow enters the massage air bag through the small-hole connector, and after the cavity air bag is filled with the air, the massage air bag is inflated. Most airflow enters the massage air bag through the small-hole connector on the first air pipe, the inner hole diameter of the sma