JPS5958259U - pilot operated check valve - Google Patents

pilot operated check valve

Info

Publication number
JPS5958259U
JPS5958259U JP15412782U JP15412782U JPS5958259U JP S5958259 U JPS5958259 U JP S5958259U JP 15412782 U JP15412782 U JP 15412782U JP 15412782 U JP15412782 U JP 15412782U JP S5958259 U JPS5958259 U JP S5958259U
Authority
JP
Japan
Prior art keywords
valve
pilot
poppet
valve body
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15412782U
Other languages
Japanese (ja)
Other versions
JPS6217663Y2 (en
Inventor
正治 井川
都築　康
Original Assignee
トヨタ自動車株式会社
豊興工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by トヨタ自動車株式会社, 豊興工業株式会社 filed Critical トヨタ自動車株式会社
Priority to JP15412782U priority Critical patent/JPS5958259U/en
Publication of JPS5958259U publication Critical patent/JPS5958259U/en
Application granted granted Critical
Publication of JPS6217663Y2 publication Critical patent/JPS6217663Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は液圧回路を含む従来のパイロット操作逆止弁の
断面図、第２図は液圧回路を含む本考案　　　−の一実
施例を示す断面図、第３図及び第４図は夫々その使用状
態を示子断面図及び要部断面図、第５図は液圧回路を含
む本考案の他の実施例の断面図である。 ３、　２０．　８θ・・・弁本体、４．３４・・・弁室
、５゜４５・・・弁座、６．　４０．　８２・・・ポペ
ット弁弁体、１２．２５．８５・・・パイロットピスト
ン、２６・・・ポペット弁本体。Fig. 1 is a sectional view of a conventional pilot-operated check valve including a hydraulic circuit, Fig. 2 is a sectional view showing an embodiment of the present invention including a hydraulic circuit, and Figs. 3 and 4 respectively. A cross-sectional view showing the state of use and a cross-sectional view of essential parts, and FIG. 5 is a cross-sectional view of another embodiment of the present invention including a hydraulic circuit. 3, 20. 8θ... Valve body, 4.34... Valve chamber, 5°45... Valve seat, 6. 40. 82...Poppet valve body, 12.25.85...Pilot piston, 26...Poppet valve body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁本体に一般けた給排ポートと負荷ポートを結ぶ流路途
上に、給排ポートから負荷ポートへの圧液の自由流れを
保ちかつ負荷ポートから給排ポートへの圧液の流れを規
制するポペット弁を設け、ポペット弁弁体移動方向の軸
上にパイロットポートに加えられる圧力によって作動す
るパイロットピストンを設け、該パイロットピストンの
作動時にはその先端部が前記ポペット弁の弁孔を通って
ポペット弁弁体を抑圧移動し、弁の強制開放を可能にし
てなるパイロット操作逆止弁において、前記−パイロッ
トピストンの作動時の移動を規制する規制部を設けると
共に、弁本体に対しポペット弁全体を前起弁体移動方向
に移動可能に固定し、ポペット弁全体を移動することに
より、前記パイロットピストン作動時のポペット弁の弁
開度を調整可能に構成したことを特徴とするパイロット
操作逆止弁。　　　、A poppet is installed in the flow path connecting the general girder supply/discharge port and the load port on the valve body to maintain the free flow of pressure fluid from the supply/discharge port to the load port and to regulate the flow of pressure fluid from the load port to the supply/discharge port. A pilot piston is provided on the axis in the direction of movement of the poppet valve body and is actuated by pressure applied to the pilot port, and when the pilot piston is actuated, its tip passes through the valve hole of the poppet valve and closes the poppet valve. In a pilot-operated check valve that is capable of forcibly opening the valve by suppressing the movement of the poppet piston, the pilot piston is provided with a regulating part that regulates the movement of the pilot piston during operation, and the entire poppet valve is raised forward relative to the valve body. 1. A pilot-operated check valve, characterized in that the valve body is fixed movably in the direction of movement of the valve body, and the valve opening degree of the poppet valve when the pilot piston is actuated can be adjusted by moving the entire poppet valve. ,
JP15412782U 1982-10-12 1982-10-12 pilot operated check valve Granted JPS5958259U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15412782U JPS5958259U (en) 1982-10-12 1982-10-12 pilot operated check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15412782U JPS5958259U (en) 1982-10-12 1982-10-12 pilot operated check valve

Publications (2)

Publication Number Publication Date
JPS5958259U true JPS5958259U (en) 1984-04-16
JPS6217663Y2 JPS6217663Y2 (en) 1987-05-07

Family

ID=30340791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15412782U Granted JPS5958259U (en) 1982-10-12 1982-10-12 pilot operated check valve

Country Status (1)

Country Link
JP (1) JPS5958259U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253070A (en) * 1989-03-24 1990-10-11 Toyooki Kogyo Co Ltd Pilot operation check valve
JP2006105227A (en) * 2004-10-04 2006-04-20 Kayaba Ind Co Ltd Operation check valve and hydraulic driving unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02253070A (en) * 1989-03-24 1990-10-11 Toyooki Kogyo Co Ltd Pilot operation check valve
JP2006105227A (en) * 2004-10-04 2006-04-20 Kayaba Ind Co Ltd Operation check valve and hydraulic driving unit

Also Published As

Publication number Publication date
JPS6217663Y2 (en) 1987-05-07

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