JPS6073979U - counter balance valve - Google Patents
counter balance valveInfo
- Publication number
- JPS6073979U JPS6073979U JP12730684U JP12730684U JPS6073979U JP S6073979 U JPS6073979 U JP S6073979U JP 12730684 U JP12730684 U JP 12730684U JP 12730684 U JP12730684 U JP 12730684U JP S6073979 U JPS6073979 U JP S6073979U
- Authority
- JP
- Japan
- Prior art keywords
- oil chamber
- valve
- oil
- check valve
- spring
- 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
Links
Landscapes
- Safety Valves (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来既知のカウンターバランス弁、第２図は本
考案に係るカウンターバランス弁の説明図、第３〜第４
図はその作動説明図である。
５・・・スプール弁、８・・・チェック弁、１２・・・
コンペンセータ、１３． １４． １５． １６・・・
油室、１７・・・オリフィス。
補正 昭５９．８．２２
実用新案登録請求の範囲、図面の簡単な説明を次のよう
に補正する。
■考案の名称 カウンター〉くランス弁Ｏ実用新案登録
請求の範囲
弁体２に設けた弁孔４内にシート部７にて負荷圧側に通
じる油室１４と油給排側に通じる油室１５とを遮断する
よう常時スプリング６で付勢した中空のスプール弁５と
、このスプール弁５の一方側に当接してシート部１０を
形成し、油室１４と油室ｊ５とを遮断する方向にスプリ
ング１１で付勢され、油室１５の圧油によりこの当接を
解き、油室１５と油室１４とを連通ずるよう構成し゛た
チェック弁８と、パイロット圧により作動されてチェッ
ク弁８を介してスプール弁５を前記スプリング６に抗し
て作動させ、油室１５と油室１４とを連通ずるよう構成
した作動部側」」−とを具え、前記チェック弁８にオリ
フィス１７を設け、このオリフィス１７により弁体及び
チェック弁８とで囲まれる油室１６と前記油室１４とを
連通し、前記スプール弁５とチェック弁８とが当設した
状態でのこの゛ １６の ゛によ この ゛ ヒが
Ｅに 持されるよう１記チエツク弁８を構成してなるカ
ウンターバランス弁。
図面の簡単な説明
第１図は本考案に係るカウンターバランス弄の説明図、
第２〜第３区はその作動説明図、第４図は従来既知のカ
ウンターバランス弁である。
５・・・スプール弁、８・・・チェック弁、１２・・・
作動部材、１３． １４． １５． １６・・・油室、
１７・・・オリフィス。Figure 1 is a conventionally known counterbalance valve, Figure 2 is an explanatory diagram of the counterbalance valve according to the present invention, and Figures 3 to 4 are
The figure is an explanatory diagram of its operation. 5... Spool valve, 8... Check valve, 12...
Compensator, 13. 14. 15. 16...
Oil chamber, 17...orifice. Amendment August 22, 1980 The scope of the utility model registration claims and the brief description of the drawings are amended as follows. ■Name of the invention Counter lance valve OUtility model registrationClaimsIn the valve hole 4 provided in the valve body 2, an oil chamber 14 communicating with the load pressure side and an oil chamber 15 communicating with the oil supply and discharge side are provided at the seat portion 7. A hollow spool valve 5 is always biased by a spring 6 so as to shut off the flow, and a spring is applied in a direction that contacts one side of the spool valve 5 to form a seat portion 10 and shut off the oil chamber 14 and the oil chamber j5. A check valve 8 is energized by a pilot pressure and is configured to release the contact by pressure oil in an oil chamber 15 and communicate the oil chamber 15 and the oil chamber 14. The check valve 8 is provided with an orifice 17, and an orifice 17 is provided in the check valve 8. The oil chamber 16 surrounded by the valve body and the check valve 8 is communicated with the oil chamber 14 by the orifice 17, and the spool valve 5 and check valve 8 are connected to each other. A counterbalance valve constructed by configuring the check valve 8 in such a manner that 1 is held at E. Brief explanation of the drawings Figure 1 is an explanatory diagram of the counterbalance mechanism according to the present invention.
The second and third sections are diagrams for explaining its operation, and FIG. 4 is a conventionally known counterbalance valve. 5... Spool valve, 8... Check valve, 12...
Actuation member, 13. 14. 15. 16...oil room,
17... Orifice.
Claims (1)
通じる油室１４と油給排側に通じる油室１５とを遮断す
るよう常時スプリング６で付勢した中空のスプール弁５
と、このスプール弁５の一方側に当接してシート部１０
を形成し、油室１４と油室１５とを遮断する方向にスプ
リング１１で・ 付勢され、油室１５の圧油によりこの
当接を解き、油室１５と油室１４とを連通ずるよう構成
したチェック弁８と、パイロット圧により作動されてチ
ェック弁８を介してスプール弁５を前記スプリング６に
抗して作動させ、油室１５と油室１４とを連通ずるよう
構成したコンペンセータ１２と−を具え、前記チェック
弁８をオリフィス１７を設け、このオリフィス１７によ
り弁体及びチェック弁８とで囲まれる油室１６と前記油
室１４とを連通し、油室１６の圧油によりチェック弁８
が前記スプール弁５に当接状態に保持され、これにより
前記シート部１０にて油室１４の圧油が密封状態となる
よう構成したことを特徴とするカウンターバランス弁。A hollow spool valve is provided in the valve hole 4 provided in the valve body 2 and is constantly biased by a spring 6 so as to shut off an oil chamber 14 communicating with the load pressure side and an oil chamber 15 communicating with the oil supply/discharge side at the seat portion 7. 5
Then, the seat portion 10 comes into contact with one side of the spool valve 5.
The spring 11 is biased in the direction of blocking the oil chamber 14 and the oil chamber 15, and the pressurized oil in the oil chamber 15 releases this contact, allowing the oil chamber 15 and the oil chamber 14 to communicate with each other. a compensator 12 configured to be actuated by pilot pressure to operate the spool valve 5 against the spring 6 through the check valve 8 to communicate the oil chamber 15 and the oil chamber 14; -, the check valve 8 is provided with an orifice 17, the orifice 17 communicates the oil chamber 16 surrounded by the valve body and the check valve 8 with the oil chamber 14, and the pressure oil in the oil chamber 16 allows the check valve to open. 8
is held in contact with the spool valve 5, thereby sealing the pressure oil in the oil chamber 14 at the seat portion 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12730684U JPS6073979U (en) | 1984-08-22 | 1984-08-22 | counter balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12730684U JPS6073979U (en) | 1984-08-22 | 1984-08-22 | counter balance valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073979U true JPS6073979U (en) | 1985-05-24 |
| JPS621507Y2 JPS621507Y2 (en) | 1987-01-14 |
Family
ID=30289187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12730684U Granted JPS6073979U (en) | 1984-08-22 | 1984-08-22 | counter balance valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6073979U (en) |
-
1984
- 1984-08-22 JP JP12730684U patent/JPS6073979U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS621507Y2 (en) | 1987-01-14 |
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