JPS5913407Y2 - non-return valve - Google Patents
non-return valveInfo
- Publication number
- JPS5913407Y2 JPS5913407Y2 JP11675778U JP11675778U JPS5913407Y2 JP S5913407 Y2 JPS5913407 Y2 JP S5913407Y2 JP 11675778 U JP11675778 U JP 11675778U JP 11675778 U JP11675778 U JP 11675778U JP S5913407 Y2 JPS5913407 Y2 JP S5913407Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- guide plate
- valve body
- support member
- valve box
- 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
Links
Landscapes
- Valve Housings (AREA)
- Check Valves (AREA)
Description
【考案の詳細な説明】
本考案は、スプリングによって弁体の自閉力を増強した
リフト式の逆止弁に関する。[Detailed Description of the Invention] The present invention relates to a lift type check valve in which the self-closing force of the valve body is enhanced by a spring.
上記形式の逆止弁は周知であり、その−例を第５図に示
す。Check valves of the above type are well known and an example thereof is shown in FIG.
第５図において、スプリング１０１は弁体１０２と押え
部材１０３との間に、弁体１０２に固定されたスピンド
ル１０４を遊嵌するようにして挿置されている。In FIG. 5, a spring 101 is inserted between a valve body 102 and a pressing member 103 so that a spindle 104 fixed to the valve body 102 is loosely fitted.
この場合、押え部材１０３の上側部と弁箱１０５のフラ
ンジ部とにネジが形成され、このネジを螺合させること
により、押え部材１０３が弁箱に支持される。In this case, a screw is formed on the upper side of the holding member 103 and the flange portion of the valve box 105, and by screwing these screws together, the holding member 103 is supported by the valve box.
かく構成の逆止弁は、スプリングによって弁体の自閉力
が増すことにより種々の利点が得られる。The check valve thus configured has various advantages because the spring increases the self-closing force of the valve body.
ところが、押え部材を弁箱に装着する際押え部材の孔に
スピンドルを嵌合するようにして、螺合操作するという
作業が必要であり、またネジによる装着であると、その
ネジ部内に液体が入り込み、そして弁体の作動による振
動等で弛むことがある。However, when attaching the holding member to the valve box, it is necessary to fit the spindle into the hole in the holding member and screw it together, and if the holding member is attached with screws, liquid may leak into the threaded part. It may become loose due to vibrations caused by the actuation of the valve body.
従って、ネジの精度を高くしたり、ネジを確実に締める
必要があった。Therefore, it was necessary to increase the precision of the screws and to tighten the screws reliably.
本考案は、上述した従来の不具合を解消し、簡単な操作
でスプリングを確実に取付けられる逆止弁を提供するこ
とを目的とし、この目的を本考案は、内部の一端側に弁
座を有する弁箱と、該弁箱の内部中間域に外周部が固着
され、中央側に円形の取付は孔が形成されたガイド板と
、該ガイド板の取付は孔に取外し可能に取付けられ、最
大径が前記弁箱内径の最小径よりも小さく形成された支
持部材と、該支持部材に固定されたガイド筒と、該ガイ
ド筒に移動可能に嵌合される弁棒が固定され、前記弁座
に当接する弁体と、該弁体と支持部材との間に挿着され
、弁体に対し弁座に圧接する方向への弾性作用を付勢す
るスプリングとを有し、前記ガイド板の取付は孔にはそ
の周縁に沿って複数の凹部が所定間隔毎に形成され、前
記支持部材の外周縁に前記凹部に対応する位置でかつ凹
部を通り抜は可能な凸部が形式されていることに達成し
た。The purpose of the present invention is to eliminate the above-mentioned conventional problems and provide a check valve that can securely attach a spring with simple operation. The outer periphery of the valve body is fixed to the inner middle area of the valve body, and a circular guide plate with a hole is attached to the center side, and the guide plate is removably attached to the hole, and the maximum diameter A support member having a diameter smaller than the minimum inner diameter of the valve box, a guide cylinder fixed to the support member, and a valve stem movably fitted to the guide cylinder are fixed to the valve seat. The guide plate includes a valve body that comes into contact with the valve body, and a spring that is inserted between the valve body and the support member and biases the valve body with an elastic action in a direction in which the valve body comes into pressure contact with the valve seat. A plurality of recesses are formed in the hole at predetermined intervals along the periphery of the hole, and a protrusion is formed on the outer periphery of the support member at a position corresponding to the recess and capable of passing through the recess. Achieved.
つぎに、この考案の実施例を図面について説明する。Next, an embodiment of this invention will be described with reference to the drawings.
第１図及び第２図において、それぞれプレス加工により
はパ半球形につくられ、フランジ部を有する上部本体１
と下部本体２とでガイド板３を挾み、外周部を溶接して
球形状の弁箱を形成している。In FIGS. 1 and 2, an upper body 1 is formed into a hemispherical shape by press working and has a flange portion.
The guide plate 3 is sandwiched between the lower body 2 and the lower body 2, and the outer periphery is welded to form a spherical valve box.
ガイド板３の内周部には、第３図のように円形の取付は
孔３′が形成され、その周縁に沿って所定間隔毎、例え
ば複数等配の幅１２なる凹部３ａを設けである。As shown in FIG. 3, a circular mounting hole 3' is formed in the inner circumference of the guide plate 3, and a plurality of recesses 3a having a width of 12 are provided at predetermined intervals along the periphery, for example, at equal intervals. .
スプリング固定金具４として構成された支持部材は、最
大径Ａを弁箱内径部の最小径ｄ。The support member configured as a spring fixture 4 has a maximum diameter A equal to a minimum diameter d of the inner diameter of the valve box.
より小さく形成され、かつ第４図のように下部外周部に
前記ガイド板３の四部３ａと対応するように同数等配に
配置され、そしてその凹部３ａの幅１２より小さい幅１
□なる凸部４ａを設けである。The grooves 1 are formed smaller in size, and are arranged in the same number and equidistribution on the lower outer peripheral part so as to correspond to the four parts 3a of the guide plate 3 as shown in FIG. 4, and have a width 1 smaller than the width 12 of the recess 3a
A convex portion 4a is provided.
従って、その凸部４ａはガイド板３の凹部３ａに通抜は
可能であり、このようにしてスプリング固定金具４はガ
イド板に上から挿入できる。Therefore, the convex portion 4a can pass through the concave portion 3a of the guide plate 3, and in this way, the spring fixing fitting 4 can be inserted into the guide plate from above.
また、スプリング固定金具４には、中央部に弁棒用ガイ
ドメタル５として構成されたガイド筒が固定されている
。Further, a guide cylinder configured as a valve stem guide metal 5 is fixed to the spring fixing fitting 4 at the center thereof.
弁体６にはゴムシート７をゴム押え８で装着し、弁棒９
が固定されていて、この弁棒９は前記弁棒用ガイドメタ
ル５に上下動の可能なようにはめ込んである。A rubber sheet 7 is attached to the valve body 6 with a rubber presser 8, and a valve stem 9 is attached.
is fixed, and this valve stem 9 is fitted into the valve stem guide metal 5 so as to be movable up and down.
弁体６とスプリング固定金具４との間には、弁体６を弁
箱のシート面２ａである弁座に圧着させるように、スプ
リング１０を入れ、スプリング固定金具４のスプリング
当り面４ｂの一部を打抜いた折り曲げ部４Ｃにより、ス
プリング１０が位置決めされている。A spring 10 is inserted between the valve body 6 and the spring fixture 4 so as to press the valve body 6 against the valve seat, which is the seat surface 2a of the valve box. The spring 10 is positioned by the bent portion 4C that is punched out.
上部本体１及び下部本体２のフランジ部分は、第１図の
ように、ガスケットシール面２ｂより外周の逃げ部２Ｃ
を凹め、一体または二つ割の裏当板１１をはめ込み、弁
箱にスポット溶接するか、又は第１Ａ図のように、予め
機械加工して製作された差込み溶接式フランジ１２を弁
箱に全溶接して構成されている。As shown in FIG. 1, the flange portions of the upper main body 1 and the lower main body 2 have a relief portion 2C on the outer periphery from the gasket sealing surface 2b.
Insert the integral or split backing plate 11 and spot weld it to the valve body, or as shown in Fig. 1A, insert a pre-machined socket welding flange 12 to the valve body. Constructed entirely by welding.
組立手順としては、下部本体２とガイド板３との間に弁
体６を入れた状態で、上部本体１でガイド板３を下部本
体２との間に挾んで、外周部を全溶接して弁箱を形成す
る。As for the assembly procedure, with the valve body 6 inserted between the lower body 2 and the guide plate 3, the guide plate 3 is sandwiched between the upper body 1 and the lower body 2, and the outer periphery is fully welded. Form a valve box.
そして、ゴムシート７を下部本体２の側から弁箱に入れ
、弁棒９を弁体６に上から差し込み、ゴム押え８でゴム
シート７を弁体６に挾んで、ナツト１３により弁棒９の
下部のおねじを締めて取付ける。Then, put the rubber sheet 7 into the valve box from the lower main body 2 side, insert the valve stem 9 into the valve body 6 from above, sandwich the rubber sheet 7 between the valve body 6 with the rubber presser 8, and tighten the valve stem 9 with the nut 13. Tighten the male screw at the bottom of the
つぎに、スプリング１０とスプリング議定金具４とを上
部本体３の側から弁棒９に嵌め込むように上から入れ、
ガイド板３の凹部３ａの位置に、スプリング固定金具４
の下部外周部の凸部４ａの位置を合わせて押込みほは゛
ゼピツチひねって、凸部４ａがガイド板３の内径側凸部
３ｂにひっかかる位置に取付ける。Next, insert the spring 10 and the spring setting fitting 4 from above so as to fit them into the valve stem 9 from the side of the upper main body 3.
Attach the spring fixing fitting 4 to the position of the recess 3a of the guide plate 3.
Align the position of the protrusion 4a on the lower outer periphery of the guide plate 3 and twist the push-in button until the protrusion 4a hooks onto the inner protrusion 3b of the guide plate 3.
上記の如く、本考案に係る逆止弁は簡単なワンタッチ操
作でスプリング１０及びスプリング固定金具４を取付け
られる。As described above, the spring 10 and the spring fixing fitting 4 can be attached to the check valve according to the present invention with a simple one-touch operation.
なお、第１図において、フランジ部の裏当板１１が一体
のリングのときには、フランジの首の部分を弁箱に溶接
する前に取付けておき、フランジの裏当板１１が二つ割
のときには、あとからでも取付けることができる。In Fig. 1, when the backing plate 11 of the flange part is a one-piece ring, it is attached before welding the neck part of the flange to the valve box, and when the backing plate 11 of the flange part is divided into two parts, it is attached. , it can be installed later.
また、フランジの構造は弁箱の内圧が低い場合に第１図
のように裏当板１１を溶接する構造とし、弁箱の内圧が
高い場合には、フランジの強度を必要とするので、第１
Ａ図のように、予め機械加工して製作された差込み溶接
式フランジ１２を弁箱に全溶接する。In addition, the flange structure is such that when the internal pressure of the valve box is low, the backing plate 11 is welded as shown in Figure 1, and when the internal pressure of the valve box is high, the flange needs to be strong. 1
As shown in Figure A, the socket welding flange 12, which has been machined in advance, is completely welded to the valve body.
以上説明したように、この考案によれば、簡単な操作で
スプリング及び支持部材を取付けでき、逆止弁の組立が
容易となるという格別の効果が生じ、従って安価にて提
供できる。As explained above, according to this invention, the spring and the support member can be attached with a simple operation, and the check valve can be easily assembled, which is a special effect, and therefore, it can be provided at a low cost.
また、取付は取外しも容易であるから、部品交換や清掃
にも有利である。Furthermore, since it is easy to attach and remove, it is advantageous for parts replacement and cleaning.
第１図は第２図のＸ−Ｘに沿った断面図、第１Ａ図は差
込み溶接式フランジの場合のフランジ部分の断面図、第
２図は第１図におけるＹ−Ｙ矢視図、第３図はガイド板
を上から見た平面図、第４図はスプリング固定金具の斜
視図、第５図は従来の逆止弁の断面図である。
１・・・上部本体（弁箱）、２・・・下部本体（弁箱）
、２ａ・・・弁座、３・・・ガイド板、３′・・・取付
孔、３ａ・・・凹部、４・・・支持部材、４ａ・・・凸
部、５・・・ガイド筒、６・・・弁体、７・・・ゴムシ
ート、８・・・ゴム押え、９・・・弁棒、１０・・・ス
プリング、Ａ・・・支持部材の最大径、ｄｏ・・・弁箱
内径部の最小径。Figure 1 is a cross-sectional view taken along the line X-X in Figure 2, Figure 1A is a cross-sectional view of the flange part in the case of a socket welding flange, Figure 2 is a view taken along the Y-Y arrow in Figure 1, 3 is a plan view of the guide plate viewed from above, FIG. 4 is a perspective view of a spring fixing fitting, and FIG. 5 is a sectional view of a conventional check valve. 1... Upper body (valve box), 2... Lower body (valve box)
, 2a...Valve seat, 3...Guide plate, 3'...Mounting hole, 3a...Recess, 4...Support member, 4a...Protrusion, 5...Guide tube, 6...Valve body, 7...Rubber sheet, 8...Rubber presser, 9...Valve stem, 10...Spring, A...Maximum diameter of support member, do...Valve box Minimum inner diameter.
Claims (1)
域に外周部が固着され、中央側に円形の取付は孔が形成
されたガイド板と、該ガイド板の取付は孔に取外し可能
に取付けられ、最大径が前記弁箱内径の最小径よりも小
さく形成された支持部材と、該支持部材に固定されたガ
イド筒と、該ガイド筒に移動可能に嵌合される弁棒が固
定され、前記弁座に当接する弁体と、該弁体と支持部材
との間に挿着され、弁体に対し弁座に圧接する方向への
弾性作用を付勢するスプリングとを有し、前記ガイド板
の取付は孔にはその周縁に沿って複数の凹部が所定間隔
毎に形式され、前記支持部材の外周縁に前記凹部に対応
する位置でかつ凹部を通り抜は可能な凸部が形成されて
いることを特徴とする逆止弁。A valve box having a valve seat on one end side, an outer peripheral part fixed to the middle area inside the valve box, a guide plate with a circular mounting hole formed in the center side, and a guide plate with a hole formed in the center side for mounting the valve box. a support member that is removably attached to the valve box and has a maximum diameter smaller than the minimum diameter of the inner diameter of the valve box; a guide cylinder that is fixed to the support member; and a valve that is movably fitted to the guide cylinder. A valve body to which a rod is fixed and comes into contact with the valve seat, and a spring inserted between the valve body and a support member to apply an elastic action to the valve body in a direction in which the valve body comes into pressure contact with the valve seat. The guide plate is attached by forming a plurality of recesses at predetermined intervals along the periphery of the hole, and allowing the guide plate to be inserted through the recesses at positions corresponding to the recesses on the outer periphery of the support member. A check valve characterized in that a convex portion is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11675778U JPS5913407Y2 (en) | 1978-08-28 | 1978-08-28 | non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11675778U JPS5913407Y2 (en) | 1978-08-28 | 1978-08-28 | non-return valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5534508U JPS5534508U (en) | 1980-03-05 |
| JPS5913407Y2 true JPS5913407Y2 (en) | 1984-04-20 |
Family
ID=29069583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11675778U Expired JPS5913407Y2 (en) | 1978-08-28 | 1978-08-28 | non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913407Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714709Y2 (en) * | 1990-07-02 | 1995-04-10 | 株式会社荏原製作所 | Coil spring lift type quick closing check valve |
| JP4420793B2 (en) | 2004-10-28 | 2010-02-24 | 日東工器株式会社 | Sheet metal valve claw |
| JP5694049B2 (en) * | 2011-05-23 | 2015-04-01 | 株式会社荏原製作所 | Check valve |
| JP7297128B2 (en) * | 2019-03-05 | 2023-06-23 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system including the same |
-
1978
- 1978-08-28 JP JP11675778U patent/JPS5913407Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5534508U (en) | 1980-03-05 |
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