A household ventilator with double-chamber low-noise structure

Abstract

The invention discloses a household respirator with a double-chamber low-noise structure. The household respirator with the double-chamber low-noise structure comprises a humidifier, a flow control system and a pressure chamber, wherein the pressure chamber comprises a hollow main body, and a positive pressure chamber and a negative pressure chamber are arranged in the main body; the tail end of the positive pressure chamber is provided with an air inlet channel which runs through the main body and is connected with the outside air, and an air port in the front end of the positive pressure chamber is connected with an air port in the front end of the negative pressure chamber through a main pipe and a transition air pipe; the other end of the transition air pipe is connected with a breathing pipe, and the positive pressure chamber and the negative pressure chamber is communicated with the main pipe alternatively; a first piston is arranged in the positive pressure chamber, and a second piston is arranged in the negative pressure chamber; the first piston and the second piston are simultaneously driven by a driving device, and the humidifier is connected with the main pipe; one end of the breathing pipe is also provided with the flow control system, and the other end of the breathing pipe is connected to a breathing mask. According to the household respirator with the double-chamber low-noise structure, since the push-pull double-chamber structure is adopted, the noise is greatly reduced, the structure is compact, and meanwhile the production is easy to operate; besides, since a spiral flow channel and a splitter plate are adopted, the effect of noise reduction is further improved.

Description

Technical field [0001] The invention relates to the field of medical equipment, in particular to a household ventilator with a dual-chamber low-noise structure. Background technique [0002] At present, the ordinary positive pressure ventilation equipment on the market is too noisy when used, which seriously affects the sleep quality of patients and family members. Although it can relieve snoring, hypoventilation and other diseases, it greatly reduces the patient’s mental outlook, thereby affecting work, study, and quality of life . In addition, long-term exposure to a high-decibel noise environment can also damage the patient's hearing. Existing positive pressure ventilation devices are generally used for the treatment of respiratory diseases such as sleep apnea syndrome and COPD (chronic obstructive airway disease). The feature of this equipment is that the centrifugal fan rotates in the cavity. The cavity has an air inlet near the center and an air outlet in the tangential d...

AI Technical Summary

Problems solved by technology

The above methods are not ideal, and have not fundamentally solved the noise problem

90% of the noise is caused by the friction between the fan blades and the air and the bottle mouth effect. Simply doing sound insulation, sound absorption and shock absorption cannot achieve the desired effect

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