| 摘要 |
<p>A connection coupling (10) for hydromassage water circulation pipes is provided having a first port (11) connected to the inlet (151) of the nozzle (15), a second port (12) axially opposite the first port (11), and at least one third port (13) arranged at an angle to the first port (11) and connected to a water circulation pipe (17, 18); a valving element (40) arranged to close the first port (11) is axially movable, within the coupling chamber, between the first port (11) and the second port (12), and is carried by a stem (23) positioned axially through the second port (12); external to the coupling (10) there are positioned means (20) for axially moving the stem (23) of the valving element (40), to cause the valving element (40) to lie against the first port (11) or alternatively to lie in a lowered position spaced from it. <IMAGE></p> |
