| 摘要 |
PROBLEM TO BE SOLVED: To provide a passage switching mechanism of a directional selector valve capable of switching a passage, seating a valve element on a valve seat by an elastic body for energizing an inserting part by moving the valve element by the inserting part when switching the passage, and energizing the valve element to either of a first valve seat or the second valve seat by attaching and detaching the inserting part. SOLUTION: This directional selector valve has oppositely arranged first valve seat and the second valve seat, a valve element movably arranged between these valve seats, and an energizing means for energizing the valve element for setting the element on the second valve seat. A passage connecting device is provided with a passage connecting inserting part for oppositely pushing the valve element of the directional selector valve against the energizing means, an outside slide for engaging the tip with the directional selector valve, and the elastic body stronger than the energizing means for pushing up the passage connecting inserting part from the outside slide. By engaging this passage connecting device with the directional selector valve, the valve element's separated from the second valve seat, and is seated on the first valve seat.
|
