Respiratory training device
The utility model relates to the technical field of respiratory training equipment, in particular to a respiratory training device which comprises a mouthpiece, a shell, an exhalation valve and an inhalation valve, the mouthpiece is connected with the shell, and air channels communicated with each o...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
05.11.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model relates to the technical field of respiratory training equipment, in particular to a respiratory training device which comprises a mouthpiece, a shell, an exhalation valve and an inhalation valve, the mouthpiece is connected with the shell, and air channels communicated with each other are arranged in the mouthpiece; at least two inwards-concave cavities are formed in the outer side wall of the shell, vent holes are formed in the bottom walls of the inwards-concave cavities of the shell, the vent holes are communicated with the air channel, a valve cover is arranged on each inwards-concave cavity, and the valve covers are in threaded connection with the positions, corresponding to the inwards-concave cavities, of the shell; the size of the area, communicated with the outside, of the inwards-concave cavity is changed by rotating the threads between the valve deck and the shell, a one-way valve block is arranged on the shell corresponding to the ventilation hole, and the one-way valve block is |
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Bibliography: | Application Number: CN202120710498U |