| 摘要 |
PROBLEM TO BE SOLVED: To provide a valve falling prevention guide of a crosshead capable of preventing positional deviation of the crosshead due to malfunction of a valve with a simple structure, and preventing falling of the valve while reducing costs.SOLUTION: A valve falling prevention guide includes a crosshead 8 provided with a fitting hole 14 on each lower surface of a pair of arm parts 13, and a pair of valves 4 in which the upper end of a stem 12 is fitted to each fitting hole 14. In the valve falling prevention guide, on both sides in a horizontal direction on a straight line connecting the pair of fitting holes 14 of the crosshead 8, a first crosshead guide 18 and a second crosshead guide 19 are respectively provided so as to sandwich the crosshead 8, thereby to inhibit horizontal displacement of the crosshead 8.SELECTED DRAWING: Figure 2 |
