| 摘要 |
FIELD: mechanics. ^ SUBSTANCE: liquid product dosing head piece includes rigid support, liquid channel, annular sealing element from elastomer, which envelops rigid support and contains a collar provided with possibility of covering the channel until the liquid is supplied from channel under pressure. According to invention, rigid support of head piece includes side wall restricting the channel from inside; at that, side wall is made around central axis; besides rigid support also contains front wall covering the liquid channel on the other end of side wall; at that, front wall includes at least one through hole covered with collar of sealing element. ^ EFFECT: improving reliability owing to improving the attachment of sealing element on rigid support of head piece. ^ 13 cl, 7 dwg |
