JPH0419677U

JPH0419677U -

Info

Publication number: JPH0419677U
Application number: JP5981190U
Authority: JP
Priority date: 1990-06-06
Filing date: 1990-06-06
Publication date: 1992-02-19

Description

[Brief explanation of drawings]

第１図は本考案に係るダイヤフラム形ポンプの
一実施例を示す正面図、第２図はその側面図、第
３図は第２図のＡ−Ｏ−Ｂ線における断面図、第
４図はセンタボデイの第３図における右側面図、
第５図は入口チエツク弁及び出口チエツク弁の構
造を示す第４図におけるＣ−Ｃ線での断面図、第
６図はサイドデイスクの側面図、第７図及び第８
図はダイヤフラムとシエルとの異なる連結方法を
示す要部断面図である。１……ポンプ本体、２……マスター弁、３……
パイロツト弁、５……センタボデイ、６ａ，６ｂ
……サイドカバー、８ａ，８ｂ……ダイヤフラム
、９ａ，９ｂ……駆動室、１０ａ，１０ｂ……ポ
ンプ室、１５……ロツド、１５ａ，１５ｂ……ロ
ツド部材、２１，２６……ナツト部材、２３，２
７……ボルト、３０ａ，３０ｂ……入口チエツク
弁、３１ａ，３１ｂ……出口チエツク弁、３２…
…入口ポート、３３……出口ポート。 Fig. 1 is a front view showing an embodiment of the diaphragm pump according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along line A-O-B in Fig. 2, and Fig. 4 is a Right side view in Figure 3 of the center body,
Fig. 5 is a sectional view taken along line C-C in Fig. 4 showing the structure of the inlet check valve and outlet check valve, Fig. 6 is a side view of the side disk, Figs.
The figure is a sectional view of a main part showing a different method of connecting the diaphragm and the shell. 1... Pump body, 2... Master valve, 3...
Pilot valve, 5... Center body, 6a, 6b
...Side cover, 8a, 8b...Diaphragm, 9a, 9b...Drive chamber, 10a, 10b...Pump chamber, 15...Rod, 15a, 15b...Rod member, 21, 26...Nut member, 23 ,2
7... Bolt, 30a, 30b... Inlet check valve, 31a, 31b... Outlet check valve, 32...
...Inlet port, 33...Outlet port.

Claims

[Scope of Claim for Utility Model Registration] 1. By arranging diaphragms in the spaces covered by the side covers of a pump body that has a center body constituting an intermediate partition wall and side covers attached to both sides of the center body. , a master valve that divides both spaces into a drive chamber where a drive fluid is supplied and discharged and a pump chamber where a pressurized fluid is supplied and discharged, and which alternately supplies and discharges the drive fluid to these drive chambers. and communicates both pump chambers with the inlet port and the outlet port via an inlet check valve that only allows pressurized fluid to flow in and an outlet check valve that only allows pressurized fluid to flow out, respectively. In a diaphragm type pump in which two diaphragms are attached to a slidable rod that penetrates the center body in a fluid-tight manner, the driving chamber is formed on the side cover side of the diaphragm, and the pump chamber is formed on the center body side of the diaphragm. However, it is characterized in that an inlet check valve and an outlet check valve are attached to the center body. 2. In the diaphragm pump according to claim 1, the two diaphragms are integrally assembled to the side cover on each side by means of side disks that constitute the inner wall of the pump chamber at the inner and outer circumferences, and the inner and outer circumferences of the two diaphragms At an intermediate position, the rod is attached to the rod via a shell located in the drive chamber, and the rod is divided into two rod members at the intermediate position, and each rod member is slidably supported by the side cover on each side. what is being done. 3. In the diaphragm pump according to claim 2, the diaphragm and the shell are connected by screwing a bolt into a nut member embedded in the diaphragm from above the shell that is in contact with the diaphragm on the drive chamber side. Something that exists.