| 摘要 |
<p>A micro-force switching valve, comprising a valve body, a piston cylinder, an inflow cavity, an outflow cavity, and a valve port arranged between the inflow cavity and the outflow cavity. A valve plug at a lower end of a valve stem opens and closes in unison with the valve port. A piston at an upper end of the valve stem slides relative to the inside wall of the piston cylinder. A channel hole is arranged within the valve stem. A breather hole is arranged at an eccentric hole position on a lower end cover. A micro-force valve plug is arranged on a micro-flow channel capable of communicating with the outflow cavity and an upper piston cavity. The present micro-force switching valve uses the pressure of a fluid such that a small amount of force opens and closes a valve, thereby being both convenient and energy-saving.</p> |
