JPS617673U

JPS617673U - three-way air valve

Info

Publication number: JPS617673U
Application number: JP9163084U
Authority: JP
Inventors: 建至石井
Original assignee: 株式会社ハルナ
Priority date: 1984-06-21
Filing date: 1984-06-21
Publication date: 1986-01-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】第１図は本考案の実施例の縦断面図、第２図は第１図Ｘ
−Ｘ’部分の横断面図、第３図は公知の三方エアーバル
ブの一部を縦断した正面図、第４図は第３図の一部の拡
大縦断面図、第５図は公知の他の三方エアーバルブの正
面図、第６図は第５図の一部の拡大縦断面図である。１０１・・・バルブ本体、１０２・・・ノーマリーオー
プンヘッド、１０３・・・ノーマリークローズヘッド、
１０２ａ・・・ノーマリーオープンヘッドを構成するシ
リンダー本体部、１０２ｂ・・・ノーマリーオープンヘ
ッドを構成するシリンダーヘッド部、１１０・・・イン
レット、１１１・・・インレット流路、１１２−・・流
路、１１２ａ，１１２ｂ・・・バルブシ一ト、１１３・
・・ノーマリーオープン側のアウトレット、１１４・・
・ノーマリーオープン側のアウトレット流路、１１５・
・・ノーマリークローズ側のアウトレット、１１６・・
・ノーマリークローズ側のアウｌ・レット流路、１２０
・・・ノーマリーオープンヘッド側のピストン、１２１
・・・同じくピストンロツド、１２２・・・同じくダイ
ヤフラム、１２３・・・支持部、１２４・・・空気室、
１２５・・・圧搾空気送入口、１２６・・・スプリング
、１３０・・・ノーマリークローズヘッド側のピストン
、１３１・・・同じくピストンロンド、１３２・・・同
じくダイヤフラム、１３３・・・突縁、１３４・・・間
隙、１３５・・・スプリング、１４０・・・圧搾空気流
通路、１４１・・・エアー導入管。[Brief explanation of the drawings] Fig. 1 is a vertical sectional view of an embodiment of the present invention, Fig. 2 is Fig. 1
- A cross-sectional view of the X' portion, FIG. 3 is a longitudinally sectional front view of a part of a known three-way air valve, FIG. 4 is an enlarged vertical sectional view of a part of FIG. 3, and FIG. FIG. 6 is an enlarged vertical sectional view of a portion of FIG. 5. 101... Valve body, 102... Normally open head, 103... Normally closed head,
102a... Cylinder body part forming a normally open head, 102b... Cylinder head part forming a normally open head, 110... Inlet, 111... Inlet channel, 112-... Channel , 112a, 112b...valve seat, 113.
...Normally open side outlet, 114...
・Normally open side outlet flow path, 115・
...Normally closed side outlet, 116...
・Normally closed side owl/let flow path, 120
・・・Piston on the normally open head side, 121
... Also piston rod, 122 ... Same diaphragm, 123 ... Support part, 124 ... Air chamber,
125... Compressed air inlet, 126... Spring, 130... Piston on normally closed head side, 131... Also piston rond, 132... Same diaphragm, 133... Projection, 134 ... Gap, 135... Spring, 140... Compressed air flow path, 141... Air introduction pipe.

Claims

[Scope of utility model registration request]

A valve body 101 to which a normally open head 102 and a normally closed head 103 are attached includes an inlet flow path 111, and valve seats 112a communicating with the flow path and formed on a normally open side and a normally closed side. A flow path 112 communicating with the valve seats 112b is formed, and diaphragms 122, 132 are provided for opening and closing the valve seats 112a, 112b. The piston 120 in the normally open head 102 is configured such that the diaphragm 122 is always pressed toward the side that opens the valve seat 112a. In a three-way air valve having a configuration in which the piston 130 in the Murray cross head 103 is always pressed toward the side where the diaphragm 132 closes the halve seae 112b, the normally open head 102 is provided with the compressed air inlet 125, and the above-mentioned An air chamber 124 communicating with the inlet port is open to the outer surface of the screw holder 120, and a gap 133 is formed above the inner surface of the piston 130 in the normally closed head 103, so that the air chamber 124 and the gap 133 are connected to each other. A structure in which the normally open head 102, the valve body 101, and the normally closed head 103 are connected by a compressed air flow passage 140 that communicates with them.