JPS62176569U

JPS62176569U -

Info

Publication number: JPS62176569U
Application number: JP6447186U
Authority: JP
Priority date: 1986-04-28
Filing date: 1986-04-28
Publication date: 1987-11-10

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の断面図である。１：ボデイ、３：弁口、６：弁体、８：復帰用
の圧縮コイルばね、１０：弁杆、１１：操作軸、
１５：アクチユエータ、１７：永久磁石、１８：
スリーブ、２０：案内柱、２１：コイル、２２：
コイルボビン、２６：装置孔、２７：通し孔、２
８：ばね受、３０：閉止用の圧縮コイルばね、３
１：係合鍔、３３：ソレノイド、３４：プランジ
ヤ。 FIG. 1 is a sectional view of an embodiment of the present invention. 1: Body, 3: Valve port, 6: Valve body, 8: Compression coil spring for return, 10: Valve rod, 11: Operating shaft,
15: Actuator, 17: Permanent magnet, 18:
Sleeve, 20: Guide post, 21: Coil, 22:
Coil bobbin, 26: device hole, 27: through hole, 2
8: Spring holder, 30: Compression coil spring for closing, 3
1: Engagement collar, 33: Solenoid, 34: Plunger.

Claims

[Scope of utility model registration request]

A valve rod that adjusts the opening degree of a valve port provided between an inlet and an outlet of the body, is biased in the valve-closing direction by the elasticity of a return spring, and presses the valve body in the valve-opening direction. is connected to the valve body, and a guide column serving as a magnetic path is supported concentrically on the body with a gap in the center hole of an annular permanent magnet, and a coil is wound around the guide column on the outer periphery. The guide post of the actuator, in which a coil bobbin is slidably fitted, is installed concentrically with the valve rod, the coil bobbin is connected to the tip of the valve rod, and the coil bobbin is adjusted in proportion to the current flowing through the coil. In the proportional valve, the degree of opening of the valve port by the valve element is adjusted in proportion to the energizing current by pressing the valve rod against the elasticity of the return spring. A device hole opening on the outer end surface of the guide column of the actuator is formed in the center thereof, and a through hole communicating with the device hole is formed in the other end surface of the guide column, and an operating shaft is connected to the tip of the valve rod. The operating shaft is provided so as to protrude concentrically with the rod, and the distal end of the operating shaft is inserted into the device hole through the through hole, and an engaging protrusion is formed on the outer periphery of the distal end of the operating shaft. A spring receiver that can be engaged with the engagement protrusion is slidably fitted therein, and a closing compression spring fitted around the tip of the operating shaft is placed between the spring receiver and the bottom surface of the device hole. By attaching the spring receiver and engaging the engagement protrusion, the valve body is biased in the valve closing direction, and when the plunger is actuated by energization, the closing force is applied via the spring receiver. A proportional valve with a closing function, characterized in that a solenoid is attached to the outer surface of the actuator for elastically contracting a compression spring to separate the spring receiver from the engagement protrusion.