JPS63184279U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案の流体制御弁の実施例を示し、第
１図はその一実施例の全体縦断面図、第２図は第
１図の要部拡大図、第３図ａ，ｂ，ｃはそれぞれ
第２図Ａ―Ａ線、Ｂ―Ｂ線、Ｃ―Ｃ線切断面図、
第４図は導圧通路のシール部の詳細図、第５図は
導圧通路のシール部の他の態様図、第６図は本考
案の要部の他の実施例を示す部分断面図である。 １１…流入路、１２…流出路、１３…弁穴、１
６…弁体、１９ａ…内孔、２４…シヤフト、２８
…ダイアフラム、２８Ａ…ダイアフラム室、３０
…内周保持体、３０ｃ…内孔、３２，３２ａ，３
２ｂ，３２ｃ…導圧通路。 The drawings show an embodiment of the fluid control valve of the present invention, FIG. 1 is an overall vertical sectional view of one embodiment, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIGS. 3 a, b, and c are Sectional views taken along lines A-A, B-B, and C-C in Figure 2, respectively.
FIG. 4 is a detailed view of the sealing portion of the impulse passage, FIG. 5 is a view of another embodiment of the sealing portion of the impulse passage, and FIG. 6 is a partial cross-sectional view showing another embodiment of the main part of the present invention. be. 11...Inflow path, 12...Outflow path, 13...Valve hole, 1
6... Valve body, 19a... Inner hole, 24... Shaft, 28
...Diaphragm, 28A...Diaphragm chamber, 30
...Inner peripheral holder, 30c...Inner hole, 32, 32a, 3
2b, 32c...pressure guiding passage.

Claims (1)

【実用新案登録請求の範囲】 作動流体の一方の流路と他方の流路とを連通す
る弁穴をシヤフトに取付けられた弁体のシヤフト
の軸方向移動によつて開閉し、前記流路の一方側
に前記弁体に連動されるダイアフラムによつて画
成されたダイアフラム室を設け、前記流路の他方
側の圧力を導圧通路を介してこのダイアフラム室
に導いて圧力キヤンセルを行う流体制御弁におい
て、 前記弁体はその内孔をもつてシヤフトに嵌装さ
れるとともに、該内孔に臨んで放射状の導圧通路
が凹設され、 前記ダイアフラムの内周を保持する内周保持体
は、その内孔をもつて前記シヤフトに嵌装される
とともに前記弁体に気密に接続され、前記弁体に
形成された導圧通路に連通し、かつダイアフラム
室に開口する導圧通路を形成してなる、 ことを特徴とする流体制御弁。[Claims for Utility Model Registration] A valve hole that communicates one flow path of the working fluid with the other flow path is opened and closed by the axial movement of the shaft of a valve body attached to the shaft, Fluid control in which a diaphragm chamber defined by a diaphragm interlocked with the valve body is provided on one side, and the pressure on the other side of the flow path is guided to this diaphragm chamber via a pressure guiding path to cancel the pressure. In the valve, the valve body is fitted into the shaft with its inner hole, and a radial pressure guiding passage is recessed facing the inner hole, and an inner circumference holding body that holds the inner circumference of the diaphragm is provided. , which is fitted into the shaft with its inner hole and is airtightly connected to the valve body, forming a pressure passage that communicates with a pressure passage formed in the valve body and opens into the diaphragm chamber. A fluid control valve characterized by: