Patent ID: 9638346
Date: 2017-05-02
CPC Classifications: F16K

Claim:
1. A valve, comprising: a body having an upper channel, a lower channel, an accommodation space and a valve groove; the accommodation space defining an upper opening and a lower opening for respectively communicating with the upper channel and the lower channel; the valve groove being adjacent to the lower channel and the accommodation space and communicated therewith respectively, and a sidewall of the valve groove being an inclined surface inclined outwardly from bottom to top thereof; an upper membrane disposed in the body and blocking the upper opening of the accommodation space, the upper membrane being a flexible and waterproof material; a lower membrane disposed in the body and blocking the lower opening of the accommodation space, the lower membrane being a flexible and waterproof material; and a positioning block disposed between the upper membrane and the lower membrane and partially covered by them, wherein corresponding to the valve groove, the positioning block extends a stop block downwardly, so that when the positioning block moves downwardly, the stop block is able to push the lower membrane into the valve groove and abut against the sidewall of the valve groove; wherein the lower channel consists of a first lower channel and a second lower channel, the valve groove located between the first lower channel and the second channel, the first lower channel communicated with the second lower channel through the valve groove, a hole formed in the sidewall of the valve groove, the hole communicated with the first lower channel, and a lower groove located on top of an opening of the valve groove, the valve groove communicated with the second lower channel via the lower groove.