Patent ID: 9714125
Date: 2017-07-25
CPC Classifications: B65D,F16K,Y10T

Claim:
1. A check valve comprising: a housing member inside which a fluid passage is formed; and a valve member disposed inside the housing member, the housing member including a valve seat part provided on an inner circumference surface of the housing member, the valve member including a valve disk seated in a sealable manner on a seat surface of the valve seat part, a pressing member fixed to the housing member by an engaging member and biasing the valve disk toward the seat surface of the valve seat part, and a valve driving member connected to the valve disk and driving the valve disk against pressing force of the pressing member, and an operating member configured to be capable of operating the valve driving member such that the valve disk of the valve member moves apart from the seat surface of the valve seat part being provided, wherein the pressing member is provided on a downstream side of the fluid passage when viewed from the valve disk, wherein the valve driving member includes a pressing piece, and a shaft extending from the pressing piece toward the valve disk to be connected to the valve disk, the operating member includes a pair of flap parts facing each other supported by the housing member through hinge parts, and the pair of flap parts include inclined parts sandwiching the pressing piece and allowing the pressing piece to slide.