JPH0178702U - - Google Patents

Info

Publication number
JPH0178702U
JPH0178702U JP1987174749U JP17474987U JPH0178702U JP H0178702 U JPH0178702 U JP H0178702U JP 1987174749 U JP1987174749 U JP 1987174749U JP 17474987 U JP17474987 U JP 17474987U JP H0178702 U JPH0178702 U JP H0178702U
Authority
JP
Japan
Prior art keywords
check
poppet
valve body
check poppet
actuator
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
JP1987174749U
Other languages
Japanese (ja)
Other versions
JPH0640964Y2 (en
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 filed Critical
Priority to JP17474987U priority Critical patent/JPH0640964Y2/en
Publication of JPH0178702U publication Critical patent/JPH0178702U/ja
Application granted granted Critical
Publication of JPH0640964Y2 publication Critical patent/JPH0640964Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Description

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

図面第１，２図はこの考案の実施例を示すもの
で、第１図は断面図、第２図は要部拡大断面図、
第３〜５図は従来装置の断面図で、第３図は断面
図、第４図は要部拡大断面図、第５図は第１チエ
ツクポペツトの側面図である。 １…バルブ本体、２，３…アクチユエータポー
ト、Ｓ…シリンダ、７…スプール、８…ポンプ通
路、９…タンク通路、１２…スリーブ、１３…ポ
ート部材、１４…第１チエツクポペツト、１７…
本考案の押圧体を構成するピストン、１８…本考
案の押圧体を構成するプツシユロツド、３０ａ…
第２チエツクポペツト、３１…ポート部材。 Drawings 1 and 2 show an embodiment of this invention, in which Fig. 1 is a sectional view, Fig. 2 is an enlarged sectional view of the main part,
3 to 5 are sectional views of the conventional device, FIG. 3 is a sectional view, FIG. 4 is an enlarged sectional view of the main part, and FIG. 5 is a side view of the first check poppet. DESCRIPTION OF SYMBOLS 1... Valve body, 2, 3... Actuator port, S... Cylinder, 7... Spool, 8... Pump passage, 9... Tank passage, 12... Sleeve, 13... Port member, 14... First check poppet, 17...
Piston 18 constituting the pressing body of the present invention... Push rod 30a constituting the pressing body of the present invention...
Second check poppet, 31...port member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バルブ本体に一対のアクチユエータポートを形
成し、このアクチユエータポートをシリンダに接
続し、しかも、このバルブ本体に内装したスプー
ルの切り換え方向に応じて、いずれか一方のアク
チユエータポートをポンプ通路に、他方のアクチ
ユエータポートをタンク通路に連通し、かつ、上
記バルブ本体にスリーブを内装し、その外側にポ
ート部材を螺合するとともに、このスリーブには
、一方のアクチユエータポートからシリンダへの
流れを自由流れとする第１チエツクポペツトを設
け、他方のアクチユエータポート側の圧力作用で
移動する押圧体で、上記第１チエツクポペツトを
開弁し、タンクへの戻りを制御流れとしたオペレ
ートチエツク装置において、上記スリーブの第１
チエツクポペツト側の外方に第２チエツクポペツ
トを内装するポペツトケースで第１チエツクポペ
ツトの背面側室を区画するとともに、上記第２チ
エツクポペツトは、背面側室を通過する自由流れ
のみを許容する構成にしたオペレートチエツク装
置。 A pair of actuator ports are formed in the valve body, and these actuator ports are connected to the cylinder, and either one of the actuator ports is connected to the pump depending on the switching direction of the spool built into the valve body. The other actuator port is connected to the tank passage, and a sleeve is installed inside the valve body, and a port member is screwed to the outside of the sleeve. A first check poppet is provided to make the flow into the cylinder a free flow, and the first check poppet is opened by a pressing body that moves under the action of pressure on the other actuator port side, making the return to the tank a controlled flow. In the operating check device, the first
The operating check device has a configuration in which a rear side chamber of the first check poppet is partitioned by a poppet case in which a second check poppet is housed outside the check poppet side, and the second check poppet allows only free flow passing through the rear side chamber.
JP17474987U 1987-11-16 1987-11-16 Operate check device Expired - Lifetime JPH0640964Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17474987U JPH0640964Y2 (en) 1987-11-16 1987-11-16 Operate check device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17474987U JPH0640964Y2 (en) 1987-11-16 1987-11-16 Operate check device

Publications (2)

Publication Number Publication Date
JPH0178702U true JPH0178702U (en) 1989-05-26
JPH0640964Y2 JPH0640964Y2 (en) 1994-10-26

Family

ID=31466588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17474987U Expired - Lifetime JPH0640964Y2 (en) 1987-11-16 1987-11-16 Operate check device

Country Status (1)

Country Link
JP (1) JPH0640964Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200552A (en) * 2005-01-18 2006-08-03 Fuji Koki Corp Check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200552A (en) * 2005-01-18 2006-08-03 Fuji Koki Corp Check valve

Also Published As

Publication number Publication date
JPH0640964Y2 (en) 1994-10-26

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