FOAM SOAP DISPENSER

摘要

A foam soap dispenser includes a cylindrical external casing having two ports, a first check valve installed at a liquid soap inlet end of the external casing, an inner tube installed at a liquid soap outlet end of the external casing, a second check valve fixed to an inner end of the inner tube, a slide plug installed between the inner end of the inner tube and an inner wall of the external casing and slidable with the inner tube along the inner wall of external casing, a gap formed between the slide plug and the inner tube and covered by a soft edge of the second check valve, a vent hole formed at the external casing, and a chamber formed between the two check valves and communicated with outside air when the soft edge of the second check valve is not covered onto the gap.

主权项

1. A foam soap dispenser, comprising: a cylindrical external casing, having two ports, a first check valve installed at a liquid soap inlet end in the external casing, an inner tube installed at a liquid soap outlet end of the external casing and movable along the axial direction of the external casing, a second check valve fixed to a head portion of an inner end of the inner tube, a slide plug installed between the head portion at the inner end of the inner tube and an inner wall of the external casing and capable of sliding with the inner tube along the inner wall of the external casing, a gap formed between the slide plug and the inner tube and covered by a soft edge of the second check valve, a vent hole formed on a peripheral wall at the top of the external casing, and a chamber formed between the two check valves and communicated with an outside air when the soft edge of the second check valve is not covered onto the gap.