ON-OFF VALVE AND LIQUID SUPPLY PATH SYSTEM

原文（中国語）

The present application provides an on-off valve and a liquid supply path system. The on-off valve includes: a valve housing defining a receiving cavity, the valve housing having a liquid inlet passage and a liquid outlet passage, wherein both the liquid inlet passage and the liquid outlet passage communicate with the receiving cavity; a sealing member provided in the receiving cavity, wherein a buffer chamber is formed between the sealing member and the liquid outlet passage; a buffer member provided between the liquid inlet passage and the sealing member; wherein in an initial state, the buffer member abuts against the sealing member to block communication between the liquid inlet passage and the liquid outlet passage; under action of negative pressure in the buffer chamber, a gap is formed between the sealing member and the buffer member, and the liquid inlet passage and the liquid outlet passage communicate through the gap.