JPH0250570U

JPH0250570U -

Info

Publication number: JPH0250570U
Application number: JP12878488U
Authority: JP
Priority date: 1988-10-03
Filing date: 1988-10-03
Publication date: 1990-04-09
Anticipated expiration: 2003-10-03
Also published as: JPH085421Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例による流路切換弁の縦
断面図、第２図は第１図の―線に沿つた断面
図、第３図は同流路折換弁を所用した塗装設備の
ブロツク図、第４図は従来例による流路切換弁の
縦断面図である。〔符号の説明〕、１……パイロツト２方向弁、
２……仕切部材、３……弁ボデイ、４……内部室
、５……ピストンボデイ（駆動部ボデイ）、６…
…ブツシユ、７……入力ポート、８，１９，２４
……連通路、９……弁室、１０……弁座、１１…
…出力ポート、１２……弁座押え、１３……ばね
、１４……ピストン、１４Ａ……環状溝、１４Ｂ
……雌ねじ、１５……ピストンシール、１６……
弁棒、１６Ａ……雄ねじ、１７……主弁、１８…
…ピストン室、２０……パイロツトポート、２１
，２２……環状パツキン、２３……揮発室、２４
……呼吸孔。 Fig. 1 is a longitudinal sectional view of a flow path switching valve according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, and Fig. 3 is a diagram of a painting equipment using the same flow path switching valve. The block diagram and FIG. 4 are longitudinal cross-sectional views of a conventional flow path switching valve. [Explanation of symbols], 1...Pilot two-way valve,
2... Partition member, 3... Valve body, 4... Internal chamber, 5... Piston body (driver body), 6...
...Button, 7...Input port, 8, 19, 24
...Communication path, 9...Valve chamber, 10...Valve seat, 11...
...output port, 12...valve seat holder, 13...spring, 14...piston, 14A...annular groove, 14B
... Female thread, 15 ... Piston seal, 16 ...
Valve stem, 16A...Male thread, 17...Main valve, 18...
...Piston chamber, 20...Pilot port, 21
, 22...Annular packing, 23...Volatilization chamber, 24
...breathing hole.

Claims

[Claims for Utility Model Registration] A driving part body is installed on one side of a partition member, and a valve body is installed on the other side of the partition member, and the proximal end side of a valve rod through which the partition member is slidably inserted into the driving part body. a valve chamber formed on the outer periphery of the valve stem, in which a valve driving unit for advancing or retracting the valve stem between predetermined positions by operating the valve body is housed, and a distal end side of the valve stem is accommodated in the valve body; An input port that opens on the outer circumference of the valve body and communicates with the valve chamber via a communication passage is provided, and a main valve provided at the tip of the valve stem is provided on the axial extension line of the valve stem. In a fluid switching valve provided with a valve seat that can be contacted and an output port that opens in the center of the valve seat, a flow path of which is opened and closed by the main valve, the valve stem projects into the valve chamber from the partition member. A gasket is attached to the base of the valve, and the communication path leading from the input port to the valve chamber is deflected with respect to the shaft center so that the inflowing fluid is not perpendicular to the shaft center of the valve stem including the main valve. . A fluid switching valve, characterized in that the gasket is provided in an upwardly inclined manner toward a partition member to which the gasket is attached.