Double-bag combined one-way valve and venting shoes thereof

Abstract

The invention discloses a double-bag combined one-way valve and a pair of venting shoes thereof. The double-bag combined one-way valve comprises a small bag which is adopted as a film and a large bag which is adopted as a valve body. The small bag is installed in the large bag. One end of an air inlet pipe respectively communicates with the connection centers of the large bag and the small bag, one end of an air outlet pipe communicates with the connection center of the large bag, and the other end of the small bag is adopted as an air inlet channel which is formed by adhering two thin films. When the pressure in the air inlet pipe is larger than the pressure outside the bag, the air inlet channel which is formed by adhering two thin films is conducted, or when the two thin films are adhered together, the air inlet channel is closed. The invention further discloses the venting shoes which are provided with the double-bag combined one-way valve, wherein the middle soles and the large soles of the venting shoes are provided with grooves which are matched with the double-bag combined one-way valve. The invention has the following beneficial effects: the sensitivity is high, and the reverse air quantity is small, so that the valve can be started between zero and negative pressure MPa 0.01.

Description

technical field [0001] The invention relates to a one-way air valve used in ventilation shoes and the ventilation shoes thereof, in particular to a device for making air flow in one direction in the air valve without backflow of the air and the ventilation shoes used therein. Background technique [0002] At present, there are two types of one-way air valves for shoes at home and abroad. One is that two hemispherical soft products are butted together. Air flows through; when under positive pressure, the hemisphere is closed and the airflow is blocked. The disadvantage of this kind of air valve is that when there are impurities in the air, the function of the air valve to block the airflow is reduced. [0003] The other is the spring back blocking type. When the spring pressure of this air valve is high, the sealing effect is good, but the sensitivity of the air valve is not high; when the spring pressure is small, the sensitivity is high, but the sealing effect is not good, ...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two types of one-way air valves for shoes at home and abroad. One is that two hemispherical soft products are butted together. Air flows through; when under positive pressure, the hemisphere is closed and the airflow is blocked. The disadvantage of this kind of air valve is that when there are impurities in the air, the function of the air valve to block the airflow is reduced. At the same time, this kind of air valve has a large amount of air

[0003] The other is the spring back blocking type. When the spring pressure of this valve is high, the sealing effect is good, but the sensitivity of the valve is not high; when the spring pressure is small, the sensitivity is high, but the sealing effect is not good, causing conflicts.

Images