Patent ID: 6843643

Claim:
A diaphragm pump comprising: at least one diaphragm portion forming a pump chamber; a driving portion disposed at said diaphragm portion; a suction valve disposed so as to correspond to said diaphragm portion; a valve housing which covers an opening of said diaphragm portion, the valve housing comprising an air vent in flow communication with said diaphragm portion; a discharge valve closing said air vent; and an air collecting body comprising a discharge port and a valve clamp, wherein said valve housing and said discharge valve comprise valve mounting portions which are configured to be interconnected with one another, wherein said discharge valve comprises a valve portion on which said air vent of said valve housing is disposed, and ribs disposed at locations other than a location of said valve portion, wherein said discharge valve is fixed via the ribs which are pressed by said valve clamp when said air collecting body is attached to said valve housing, and wherein a pumping action is performed by driving said driving portion.