A head part module of a discharge pump for a discharge container and a discharge pump comprising a head part module and a pump part module

摘要

A head-side module of a discharge pump for a discharge container, configured in such a manner that a head of a pump mechanism can be easily changed. A head-side module of a discharge pump, comprising: a mounting cap (4) having a linkage tube (10) raised from the upper end of a mounting tube (6) with an inwardly facing flange (8) therebetween; a cover ring (16) extending downward along an outer peripheral wall (24) from the outer side of a top plate (18) which has a through-hole (20) at the center thereof, having a first fitting ridge (28) and a second fitting ridge (30) circumferentially provided on the rear surface side of the top plate (18), and allowing the upper part of the linkage tube (10) to be movably fitted to the second fitting ridge (30); and a push-down head (36) provided with an outer tube (40) extending from the outer side of a head plate (38) and also with a first communicating tube (42) extending from the rear surface side of the head plate above the through-hole (20), communicated with the first communicating tube (42), and having a nozzle (44) caused to project forward from the outer tube (40), with the outer tube (40) mounted to the outer surface of the outer peripheral wall (24) of the cover ring (16).