Button-type rapid air exhaust one-way air valve

Abstract

The invention discloses a button-type rapid air exhaust one-way air valve which comprises a valve body (1), an air exhaust valve core (2), an air exhaust button (21), a one-way valve core (3) and an end cap (4). According to the invention, an air inlet and an air outlet are respectively arranged at the left end and the right end of the valve body; an air exhaust opening is arranged on the upper part of the valve body; the air exhaust opening is internally provided with a pressing air exhaust mechanism composed of an air exhaust valve core, an air exhaust button, a resetting spring and a seal ring A; the air inlet is internally provided with a one-way non-return air inlet mechanism composed of a one-way valve core, a spring, a ventilation clamping ring and a seal ring B; during air inflation, compressed air passes through the valve body unidirectionally to enter a cuff from the air inlet through the air outlet; and during air exhaust, the air exhaust button is pressed to drive the air exhaust valve downward, thus the air outlet is communicated with atmosphere, through the technical scheme that air in the cuff is exhausted from the air outlet through the air exhaust opening, the air charge and discharge of the cuff of a sphygmomanometer achieves the aim of simple, convenient and rapid operation in the mode of pressing exhaust air.

Description

technical field [0001] The invention relates to an air valve, in particular to a button-type rapid exhaust one-way air valve used to control the air pump of the sphygmomanometer to charge and deflate the cuff of the sphygmomanometer. Background technique [0002] The sphygmomanometer is a medical device for measuring the blood pressure of the human body. When the sphygmomanometer is working, the air pump inflates the cuff tied to the arm through the one-way valve, and the air in the cuff is discharged through the one-way valve after the measurement is completed. The one-way air valve in the prior art is a knob-type one-way air valve. The knob-type one-way air valve is provided with an opening and closing knob that is opened and closed by a screw. The valve is one-way ventilation, and the compressed air provided by the air pump inflates the cuff in one direction; when exhausting, turn the opening and closing knob in the opposite direction to loosen, the one-way air valve is e...

AI Technical Summary

Problems solved by technology

[0002] The sphygmomanometer is a medical device for measuring the blood pressure of the human body. When the sphygmomanometer is working, the air pump inflates the cuff tied to the arm through the one-way valve, and the air in the cuff is discharged through the one-way valve after the measurement is completed. The one-way air valve in the prior art is a knob-type one-way air valve. The knob-type one-way air valve is provided with an opening and closing knob that is opened and closed by a screw. The valve is one-way ventilation, and the compressed air provided by the air pump inflates the cuff in one direction; when exhausting, turn the opening and closing knob in the opposite direction to loosen, the one-way air valve is exhausted to the outside, and the compressed air stored in the cuff passes through the opening and closing knob The opening and closing of the opening and closing knob is very troublesome in practical applications, and it is difficult to unscrew the opening and closing to exhaust from time to time. Therefore, the prior art has the problem and deficiency of inconvenient operation.

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