JPS6295186U

JPS6295186U -

Info

Publication number: JPS6295186U
Application number: JP18832485U
Authority: JP
Priority date: 1985-12-06
Filing date: 1985-12-06
Publication date: 1987-06-17

Description

[Brief explanation of the drawing]

第１図は本考案のダイアフラムポンプの一実施
例を示す断面図、第２図は第１図の―線断面
図、第３図はその一側本体の内側正面図、第４図
は他側本体の内側正面図、第５図は第３図および
第４図の―線断面図、第６図は第３図および
第４図の―線断面図、第７図はオリフイス部
分の拡大断面図、第８図はポンプ本体の側断面図
、第９図は従来のダイアフラムポンプを示す断面
図である。３１…ポンプ本体、３１ａ…一側本体、３１ｂ
…他側本体、３２，３３…作動流体室用凹面、３
４…主切換弁装着穴、３５…主切換弁、３８…セ
ンターロツド、４１…ダイアフラム、４３ａ，４
３ｂ…作動流体室、４４…ポンプ室、４５…吸込
用逆止弁、４６…吸込口、４７…吐出用逆止弁、
４８…吐出口、６３，６４…パイロツトバルブ。 Fig. 1 is a sectional view showing one embodiment of the diaphragm pump of the present invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is an inside front view of one side of the main body, and Fig. 4 is the other side. An inside front view of the main body, FIG. 5 is a sectional view taken along the line - - of FIGS. 3 and 4, FIG. 6 is a sectional view taken along the - line of FIGS. 3 and 4, and FIG. 7 is an enlarged sectional view of the orifice portion. , FIG. 8 is a side sectional view of the pump body, and FIG. 9 is a sectional view showing a conventional diaphragm pump. 31... Pump main body, 31a... One side main body, 31b
...Other side main body, 32, 33...Concave surface for working fluid chamber, 3
4...Main switching valve mounting hole, 35...Main switching valve, 38...Center rod, 41...Diaphragm, 43a, 4
3b... working fluid chamber, 44... pump chamber, 45... suction check valve, 46... suction port, 47... discharge check valve,
48...Discharge port, 63, 64...Pilot valve.

Claims

[Scope of utility model registration request]

A working fluid chamber and a pump chamber are defined on both sides of the pump body through diaphragms interconnected by a center rod, and a suction port is communicated with the pump chambers on both sides through a suction check valve. The diaphragm is operated by working fluid that is alternately controlled to be supplied and discharged to and from the working fluid chambers on both sides, and the diaphragm is operated by the working fluid that is controlled to be supplied and discharged alternately to the working fluid chambers on both sides. The pilot valves provided at the portions facing the fluid chambers are operated, and in conjunction with the operation of the pilot valves on both sides, the main switching valve is switched, and the main switching valve supplies fluid to one of the working fluid chambers. In a diaphragm pump in which the direction of the working fluid discharged from the working fluid chamber on the other side is switched and controlled, the pump body is formed by integrally molding a concave surface for the working fluid chamber on one side and the working fluid on the other side. and a main body on the other side formed by integrally molding a concave surface for the chamber, a main switching valve mounting hole is integrally formed inside the one side main body, and the main switching valve is mounted in the main switching valve mounting hole. A diaphragm pump characterized by: