JP2791442B2 - Flow control valve - Google Patents

Flow control valve

Info

Publication number
JP2791442B2
JP2791442B2 JP2050344A JP5034490A JP2791442B2 JP 2791442 B2 JP2791442 B2 JP 2791442B2 JP 2050344 A JP2050344 A JP 2050344A JP 5034490 A JP5034490 A JP 5034490A JP 2791442 B2 JP2791442 B2 JP 2791442B2
Authority
JP
Japan
Prior art keywords
valve
valve seat
flow control
chamber
cylindrical
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.)
Expired - Lifetime
Application number
JP2050344A
Other languages
Japanese (ja)
Other versions
JPH03255287A (en
Inventor
茂樹 岩松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NITSUTA MUAA KK
Original Assignee
NITSUTA MUAA KK
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 NITSUTA MUAA KK filed Critical NITSUTA MUAA KK
Priority to JP2050344A priority Critical patent/JP2791442B2/en
Priority to KR1019910003377A priority patent/KR940009814B1/en
Publication of JPH03255287A publication Critical patent/JPH03255287A/en
Application granted granted Critical
Publication of JP2791442B2 publication Critical patent/JP2791442B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、空気用又は油圧用のアクチュエータの速
度調整等に使用される流量調整弁に関するものである。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow control valve used for adjusting the speed of an air or hydraulic actuator.

〔従来の技術〕[Conventional technology]

一般に、流量調整弁は、第5図に示すように、ケーシ
ング本体(1)内に形成した流体経路(10)中にニード
ル弁(2)を設けるようにして構成されており、前記流
体経路(10)と直交する方向に開口させた弁収容室(1
2)にニードル弁(2)を圧入するようにして組立てら
れている。
Generally, as shown in FIG. 5, the flow control valve is configured such that a needle valve (2) is provided in a fluid path (10) formed in the casing body (1), and the fluid path ( The valve chamber (1
It is assembled so that the needle valve (2) is pressed into 2).

上記ニードル弁(2)は、同図に示すように、筒体
(5)の一方の開口部に、操作部(31)を具備し、且
つ、先端に弁体部(30)を有した弁軸(3)を螺合する
と共に、他方の開口部に、弁座部(40)を有する筒状の
弁座体(4)を挿入する態様でカシメ止めして構成して
ある。
As shown in the figure, the needle valve (2) is provided with an operating portion (31) at one opening of a cylindrical body (5) and a valve body (30) at the tip. The shaft (3) is screwed together, and the other opening is crimped so that a cylindrical valve seat (4) having a valve seat (40) is inserted.

このものでは、上記操作部(31)を回動操作すると、
弁体部(30)が弁座部(40)と接離して流体通過面積が
変化することとなり、下流側への流体の流量調整ができ
る。したがって、この流量調整弁を、例えば、シリンダ
の駆動用空気回路に設けた場合、シリンダの出力軸の進
退速度の調整が容易に行えることとなる。
In this case, when the operation section (31) is rotated,
The valve body (30) comes into contact with and separates from the valve seat (40), so that the fluid passage area changes, and the flow rate of the fluid to the downstream side can be adjusted. Therefore, when this flow control valve is provided in, for example, a cylinder driving air circuit, the forward / backward speed of the output shaft of the cylinder can be easily adjusted.

しかしながら、上記構成の流量調整弁では、操作部
(31)を誤って必要以上に強く締込むと、折曲げられた
筒体(5)のカシメ部分が伸びて弁座体(4)が筒体
(5)内で移動してしまい、流量調整が困難になるか又
は不能になるという問題があった。
However, in the flow control valve having the above-described configuration, if the operating portion (31) is accidentally tightened more than necessary, the swaged portion of the bent cylinder (5) is elongated, and the valve seat (4) is inflated. There is a problem in that it moves within (5), making it difficult or impossible to adjust the flow rate.

他方、上記流量調整弁は、組立工数が多いことから組
立に多くの時間を要するという問題も有している。
On the other hand, the flow control valve has a problem that it takes a lot of time to assemble because of a large number of assembling steps.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

そこで、この発明では、組立てに要する時間が短縮で
き、且つ、操作部を必要以上に強く締込んでも、流量調
整に支障を来さない流量調整弁を提供することを課題と
する。
In view of the above, an object of the present invention is to provide a flow control valve which can reduce the time required for assembling and which does not hinder the flow control even if the operation unit is tightened more than necessary.

〔課題を解決するための手段〕[Means for solving the problem]

そこで、この発明では、流量調整弁に関して、ケーシ
ング本体(1)内に形成した流体経路(10)中に弁収容
室(12)を設けると共にこの弁収容室(12)内にニード
ル弁(2)を外部操作可能に配設し、前記ニードル弁
(2)を、弁収容室(12)の構成壁によって支持される
筒体(5)と、この筒体(5)の一方の開口部に螺合さ
れ、且つ、先端に弁体部(30)を有した弁軸(3)と、
前記筒体(5)の他方の開口部に、弁座部(40)が上記
弁体部(30)と対向する態様で取付けられる筒状の弁座
体(4)とから構成した流量調整弁に於いて、弁座体
(4)を、上記筒体(5)と弁収容室(12)を構成する
底壁により挟持させている。
Therefore, in the present invention, with regard to the flow control valve, a valve accommodating chamber (12) is provided in a fluid path (10) formed in the casing body (1), and a needle valve (2) is provided in the valve accommodating chamber (12). The needle valve (2) is screwed into a cylindrical body (5) supported by a constituent wall of the valve accommodating chamber (12) and one opening of the cylindrical body (5). A valve shaft (3) which is combined and has a valve body (30) at a tip thereof;
A flow regulating valve comprising a cylindrical valve seat (4) attached to the other opening of the cylindrical body (5) such that a valve seat (40) faces the valve body (30). In the above, the valve seat (4) is sandwiched between the cylindrical body (5) and the bottom wall constituting the valve accommodating chamber (12).

〔作用〕[Action]

この発明は、次のように作用する。 The present invention operates as follows.

ニードル弁(2)を操作すると、従来の流量調整弁と
同様に、弁軸(3)の先端部の弁体部(30)は弁座体
(4)の弁座部(40)と接離することとなり、流体経路
(10)の開度は変化する。
When the needle valve (2) is operated, the valve body (30) at the distal end of the valve shaft (3) comes into contact with and separates from the valve seat (40) of the valve seat (4), similarly to the conventional flow control valve. Therefore, the opening degree of the fluid path (10) changes.

このニードル弁(2)を締込むべく操作すると、弁体
部(30)は弁座部(40)に当接することとなり、さら
に、締込んだ場合には、弁座体(4)には弁軸(3)か
らの押圧力が作用する。ところが、この発明のもので
は、上記弁座体(4)は筒体(5)と弁収容室(12)を
構成する底壁により挟持させてあるから、弁座体(4)
の移動は弁収容室(12)を構成する底壁により阻止れる
こととなる。
When the needle valve (2) is operated to be tightened, the valve body (30) comes into contact with the valve seat (40). The pressing force from the shaft (3) acts. However, according to the present invention, the valve seat body (4) is sandwiched between the cylindrical body (5) and the bottom wall constituting the valve housing chamber (12).
Is prevented by the bottom wall of the valve chamber (12).

又、この発明のものは、上記したように、弁座体
(4)は筒体(5)と弁収容室(12)の構成壁により挟
持される構成としてあるから、組立てる工程において、
弁座体(4)の筒体(5)へのカシメ止めは不要なもの
となる。
Further, according to the present invention, as described above, the valve seat (4) is sandwiched between the cylindrical body (5) and the constituent wall of the valve accommodating chamber (12).
The crimping of the valve seat (4) to the cylinder (5) becomes unnecessary.

〔実施例〕〔Example〕

以下、この発明の構成を一実施例として示した図面に
従って説明する。
Hereinafter, a configuration of the present invention will be described with reference to the drawings shown as one embodiment.

この流量調整弁は、第1図及び第2図(a)(b)に
示すように、ケーシング本体(1)内に設けた流体経路
(10)中に、これと直交する方向に開口する弁収容室
(12)を形成し、この弁収容室(12)の開口部からニー
ドル弁(2)を圧入するようにして組立ててある。
As shown in FIGS. 1 and 2 (a) and 2 (b), this flow regulating valve is a valve that opens in a fluid path (10) provided in a casing body (1) in a direction orthogonal to the fluid path (10). A housing chamber (12) is formed, and the needle valve (2) is assembled by press-fitting an opening of the valve housing chamber (12).

ケーシング本体(1)は、合成樹脂により構成してあ
り、第2図(b)に示すように、上記した弁収容室(1
2)の開口部分に拡大開口部(14)を形成させ、他方、
流体経路(10)の出入口にそれぞれ流体配管となるチュ
ーブがワンタッチで着脱できる着脱機構(7)を具備さ
せてある。
The casing main body (1) is made of a synthetic resin, and as shown in FIG.
An enlarged opening (14) is formed in the opening of 2),
At the entrance and exit of the fluid path (10), a tube as a fluid pipe is provided with a detachable mechanism (7) which can be detached with one touch.

又、上記したニードル弁(2)は、第2図(a)に示
すように、両端開放の筒体(5)と、この筒体(5)の
一方の開口部に螺合される弁軸(3)と、前記筒体
(5)の他方の開口部に嵌入される弁座体(4)と、前
記弁軸(3)と筒体(5)との相対回転を阻止するロッ
クナット(9)とから構成されている。
Further, as shown in FIG. 2 (a), the needle valve (2) has a cylinder (5) open at both ends and a valve shaft screwed into one opening of the cylinder (5). (3) a valve seat (4) fitted into the other opening of the cylinder (5); and a lock nut () for preventing relative rotation between the valve shaft (3) and the cylinder (5). 9).

前記弁軸(3)は、同図に示すように、操作部(31)
と雄螺子部(32)と弁体部(30)とを具備させた構成と
してあり、前記弁体部(30)と雄螺子部(32)相互間に
はOリング(60)を装着する為の溝(33)が周設してあ
ると共に上記弁体部(30)には先端に向かって先細とな
るテーパ部(34)が形成してある。
The valve shaft (3) is, as shown in FIG.
And an external thread portion (32) and a valve body portion (30). An O-ring (60) is mounted between the valve body portion (30) and the external thread portion (32). A groove (33) is provided around the valve body (30), and the valve body (30) is formed with a tapered portion (34) tapering toward the tip.

弁座体(4)は、第2図〜第4図に示すように、筒孔
(42)の直径が上記弁体部(30)のそれよりも小さく設
定された筒部(45)と、断面タイコ型の鍔部(41)とか
ら構成されており、前記鍔部(41)の端面には筒孔(4
2)と連通するスリット(43)が形成してある。又、こ
の弁座体(4)には、筒部(45)部分にテーパ筒状のパ
ッキン(44)を外装してあり、このパッキン(44)の最
大径部は後述する筒体(5)の内周壁に圧接する大きさ
に設定してある。尚、この弁座体(4)では、筒部(4
5)における内周液上端部が弁座部(40)となる。
As shown in FIGS. 2 to 4, the valve seat body (4) has a cylindrical portion (45) in which the diameter of the cylindrical hole (42) is set smaller than that of the valve body portion (30). And a flange (41) having a Tyco-shaped cross section, and a cylindrical hole (4) is formed in an end surface of the flange (41).
A slit (43) communicating with 2) is formed. The valve seat (4) is provided with a tapered tubular packing (44) at the tubular portion (45). The size is set so as to be pressed against the inner peripheral wall. In this valve seat (4), the cylindrical portion (4
The upper end of the inner peripheral liquid in 5) becomes the valve seat (40).

筒体(5)は、第2図(a)に示すように、外径が上
記弁収容室(12)の直径よりも僅かに大きく設定してあ
り、その一端近傍の外周面に鍔部(56)を形成すると共
に内周面に上記雄螺子部(32)と対応する雌螺子部(5
0)を形成し、他端近傍の内周面には上記鍔部(41)と
対応する拡大開口部(51)を形成してある。そして、こ
の筒体(5)の側周面にはOリング(61)(62)を取付
ける為の溝(52)(53)が周設してあると共に断面鋸歯
状の係合突起(54)が周設してあり、前記溝(52)(5
3)間には一対の流体通過孔(55)(55)が形成してあ
る。
As shown in FIG. 2 (a), the outer diameter of the cylindrical body (5) is set slightly larger than the diameter of the valve housing chamber (12), and a flange ( 56) and a female screw (5) corresponding to the male screw (32) on the inner peripheral surface.
0) is formed, and an enlarged opening (51) corresponding to the flange (41) is formed on the inner peripheral surface near the other end. Grooves (52) and (53) for attaching O-rings (61) and (62) are provided on the side peripheral surface of the cylindrical body (5), and engagement projections (54) having a sawtooth cross section are provided. Are provided around the groove (52) (5
A pair of fluid passage holes (55) (55) are formed between 3).

尚、上記筒体(5)に弁座体(4)を装着させた状態
における、筒体(5)の鍔部(56)の下面から弁座体
(4)の端面までの長さ(第2図(a)に示すA寸法)
は、ケーシング本体(1)の弁収容室(12)の底壁面か
ら拡大開口部(14)の底面までの長さ(第2図(b)に
示すB寸法)と一致又は少し大きくしてある。
The length from the lower surface of the flange (56) of the tubular body (5) to the end face of the valve seat (4) in a state where the valve seat (4) is mounted on the tubular body (5) (No. (A dimension shown in Fig. 2 (a))
Is equal to or slightly larger than the length from the bottom wall of the valve chamber (12) of the casing body (1) to the bottom of the enlarged opening (14) (dimension B shown in FIG. 2 (b)). .

この流量調整弁の各部品は上記のように構成してある
から、ニードル弁(2)をケーシング本体(1)の弁収
容室(12)の圧入した状態では、第1図に示すように、
筒体(5)の係合突起(54)は弁収容室(12)の内周壁
に噛込んだ状態となり、又、弁座体(4)を筒体(5)
と弁収容室(12)を構成する底壁(13)により挟持され
た状態となる。
Since the components of the flow control valve are configured as described above, when the needle valve (2) is press-fitted into the valve housing chamber (12) of the casing body (1), as shown in FIG.
The engagement projection (54) of the cylinder (5) is engaged with the inner peripheral wall of the valve accommodating chamber (12), and the valve seat (4) is moved to the cylinder (5).
And the bottom wall (13) that constitutes the valve housing chamber (12).

尚、この流量調整弁の場合、制御流経路は、接続チュ
ーブ(a)ケーシング本体(1)の流体経路(10a)
弁収容室(12)の下部空間弁座体(4)のスリット
(43)弁座体(4)の筒孔(42)弁体部(30)と弁
座部(40)間の間隙部筒体(5)の流体通過孔(55)
ケーシング本体(1)の流体経路(10b)接続チュ
ーブ(b)となり、又、自由流経路は、接続チューブ
(b)流体経路(10b)流体通過孔(55)弁体部
(30)と弁座部(40)間の間隙部、及び、筒体(5)の
内周面とパッキン(44)の外周面との間弁収容室(1
2)の下部空間流体経路(10a)接続チューブ(a)
となる。
In the case of this flow control valve, the control flow path is the connection tube (a) and the fluid path (10a) of the casing body (1).
Lower space of the valve housing (12) Slit (43) of the valve seat (4) Cylinder hole (42) of the valve seat (4) Gap between the valve body (30) and the valve seat (40) Fluid passage hole (55) in body (5)
The fluid path (10b) of the casing body (1) becomes the connection tube (b), and the free flow path is the connection tube (b), the fluid path (10b), the fluid passage hole (55), the valve body (30) and the valve seat. Between the inner portion of the cylindrical body (5) and the outer peripheral surface of the packing (44).
2) Lower space fluid path (10a) Connecting tube (a)
Becomes

〔発明の効果〕 この発明は、上述の如くの構成を有するものであるか
ら、次の効果を有する。
[Effects of the Invention] Since the present invention has the above-described configuration, it has the following effects.

ニードル弁(2)を必要以上に強く締込み操作して
も、弁座体(4)の移動は弁収容室(12)の底壁によっ
て阻止されるから、弁座体(4)は筒体(5)内で移動
しないものとなり、その結果、流体の流量調整に支障を
来さないものとなる。
Even if the needle valve (2) is tightened more than necessary, the movement of the valve seat (4) is prevented by the bottom wall of the valve housing (12). It does not move in (5), and as a result, does not hinder the flow rate adjustment of the fluid.

又、この発明のものでは、組立工程において、弁座体
(4)の筒体(5)へのカシメ止めは不要となることか
ら、組立に要する工数は少ないものとなり、その結果、
組立に要する時間の短縮が図れることとなる。
Further, according to the present invention, it is not necessary to caulk the valve seat (4) to the cylinder (5) in the assembling process, so that the man-hour required for assembling is reduced, and as a result,
The time required for assembly can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

第1図はこの出願の発明の流量調整弁における断面図。
第2図(a)は前記流量調整弁のニードル弁の断面図で
あり、第2図(b)は前記流量調整弁のケーシング本体
の断面図。第3図及び第4図は前記流量調整弁の弁座体
の説明図。第5図は従来の流量調整弁の説明図であり、 (1)……ケーシング本体、(2)……ニードル弁 (3)……弁軸、(4)……弁座体 (5)……筒体、(10)……流体経路 (12)……弁収容室、(30)……弁体部 (40)……弁座部
FIG. 1 is a sectional view of a flow regulating valve according to the invention of the present application.
FIG. 2A is a cross-sectional view of a needle valve of the flow control valve, and FIG. 2B is a cross-sectional view of a casing body of the flow control valve. 3 and 4 are explanatory views of a valve seat body of the flow control valve. FIG. 5 is an explanatory view of a conventional flow control valve. (1)... A casing body, (2) a needle valve (3)... A valve shaft, (4). … Cylinder, (10)… Fluid path (12)… Valve storage chamber, (30)… Valve (40)… Valve seat

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ケーシング本体(1)内に形成した流体経
路(10)中に弁収容室(12)を設けると共にこの弁収容
室(12)内にニードル弁(2)を外部操作可能に配設
し、前記ニードル弁(2)を、弁収容室(12)の構成壁
によって支持される筒体(5)と、この筒体(5)の一
方の開口部に螺合され、且つ、先端に弁体部(30)を有
した弁軸(3)と、前記筒体(5)の他方の開口部に、
弁座部(40)が上記弁体部(30)と対向する態様で取付
けられる筒状の弁座体(4)とから構成した流量調整弁
に於いて、弁座体(4)を、上記筒体(5)と弁収容室
(12)を構成する底壁により挟持させたことを特徴とす
る流量調整弁。
A valve chamber (12) is provided in a fluid path (10) formed in a casing body (1), and a needle valve (2) is arranged in the valve chamber (12) so as to be operable externally. The needle valve (2) is screwed into a cylindrical body (5) supported by a constituent wall of the valve accommodating chamber (12) and one opening of the cylindrical body (5). A valve shaft (3) having a valve body (30) and the other opening of the cylindrical body (5);
In a flow rate regulating valve comprising a cylindrical valve seat (4) mounted so that a valve seat (40) is opposed to the valve body (30), the valve seat (4) is replaced with the valve seat (4). A flow regulating valve characterized in that it is sandwiched between a cylindrical body (5) and a bottom wall constituting a valve housing chamber (12).
JP2050344A 1990-02-28 1990-02-28 Flow control valve Expired - Lifetime JP2791442B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2050344A JP2791442B2 (en) 1990-02-28 1990-02-28 Flow control valve
KR1019910003377A KR940009814B1 (en) 1990-02-28 1991-02-28 Flow regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2050344A JP2791442B2 (en) 1990-02-28 1990-02-28 Flow control valve

Publications (2)

Publication Number Publication Date
JPH03255287A JPH03255287A (en) 1991-11-14
JP2791442B2 true JP2791442B2 (en) 1998-08-27

Family

ID=12856303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2050344A Expired - Lifetime JP2791442B2 (en) 1990-02-28 1990-02-28 Flow control valve

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JP4698230B2 (en) * 2005-01-07 2011-06-08 サーパス工業株式会社 Flow control device

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KR940009814B1 (en) 1994-10-17
JPH03255287A (en) 1991-11-14
KR920016754A (en) 1992-09-25

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