| 摘要 |
<p>PURPOSE:To prevent a trouble caused by a drip of water infiltrating through a lead wire, by drawing the lead wire downward from a hollow chamber providing lead switch, in the case of a check valve equipped with a flow switch providing the lead switch closed by approach of a magnet provided in a valve main unit. CONSTITUTION:A device, providing a lead switch 29 on a printed substrate 30, arranges said printed substrate 30 in a recessed part 28a in a base 28. A tilt surface 28d, tilting downward from the bottom surface of the recessed part 28a, is formed in one end side of the recessed part 28a, herefrom a lead wire 37, connected with the printed substrate 30, is drawn out to the outside. Consequently, the device, preventing a drip of water from infiltrating into the recessed part 28a along the lead wire 37, enables a trouble of the lead switch 29 to be surely prevented.</p> |
