| 摘要 |
<p>Spraying pump comprising a press-button (1), a diffuser (2), a pump body (3) defining a pumping chamber (16) and a bottom (14), a main piston (5) of which the inside defines a first hollow internal space (11) and configures a valve seat (12), a second piston (6) which is provided with a rod (17) and which is intended to be applied sealingly to the valve seat (12) and, at the opposite extremity of the rod (17), a cylindrical skirt (18) which defines internally a second hollow space (19), a spring (9), and a cylinder (7) which has an extremity partially introduced into the second internal hollow space (19) and of which the opposite extremity covers a communication tube (8) and is intended to bear sealingly on the lower extremity of the pump body (3).</p> |
