JPS6413278U

JPS6413278U -

Info

Publication number: JPS6413278U
Application number: JP10725587U
Authority: JP
Priority date: 1987-07-13
Filing date: 1987-07-13
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

図面は本考案のポンプ装置の逆止弁の実施例を
示し、第１図はその一実施例の逆止弁の適用され
るポンプ装置の全体構造図（第２図の―線断
面図）、第２図は第１図の―線断面図、第３
図は逆止弁の平面図、第４図は第２図の―線
断面図、第５図は弁体の断面拡大図である。５，６……ポンプ室、９，１３……吸入室、１
０，１４……吐出室、１５，１６，１７……逆止
弁、２８……板ばね、３１……平板、３２……弁
体係合孔、３３……固定孔、２９……弁体、３５
……弁本体部、３６……リブ、３８……係合突起
。 The drawings show an embodiment of the check valve of the pump device of the present invention, and FIG. 1 is an overall structural diagram of the pump device to which the check valve of the embodiment is applied (cross-sectional view taken along the line - in FIG. 2); Figure 2 is a cross-sectional view taken along the - line in Figure 1;
The figure is a plan view of the check valve, FIG. 4 is a sectional view taken along the line -- in FIG. 2, and FIG. 5 is an enlarged sectional view of the valve body. 5, 6... Pump chamber, 9, 13... Suction chamber, 1
0, 14... Discharge chamber, 15, 16, 17... Check valve, 28... Leaf spring, 31... Flat plate, 32... Valve body engagement hole, 33... Fixed hole, 29... Valve body , 35
...Valve body, 36...rib, 38...engaging protrusion.

Claims

[Claims for Utility Model Registration] A check valve that is interposed between a pump chamber and a suction chamber or a discharge chamber in a pump device, and is composed of a leaf spring and a valve body that performs a suction or discharge action, The leaf spring has an elongated flat plate shape, and a valve body engaging hole is bored at the tip thereof, and the valve body of the valve body has a substantially disk shape, and the valve body has a substantially disk shape, and the valve body has a substantially disk shape, and a valve body engages with the hole along the outer periphery of the bottom surface of the leaf spring. The disk has a circumferentially protruding rib, and an inverted cone-shaped engagement protrusion is integrally protruded on the upper surface along the axis of the disk. A check valve, wherein the check valve is engaged in a valve body engagement hole of the leaf spring so as to be able to precess with respect to an axis of the valve body engagement hole.