JPH029185Y2 - - Google Patents
Info
- Publication number
- JPH029185Y2 JPH029185Y2 JP1984043296U JP4329684U JPH029185Y2 JP H029185 Y2 JPH029185 Y2 JP H029185Y2 JP 1984043296 U JP1984043296 U JP 1984043296U JP 4329684 U JP4329684 U JP 4329684U JP H029185 Y2 JPH029185 Y2 JP H029185Y2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- annular core
- mounting flange
- core metal
- annular
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
- Valve Housings (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
耐蝕性保持、軽量化、並びに価格低減等のため
に、各種形式の弁がポンプ等のボデイ、あるいは
管接手等を、合成樹脂で製作することは、広く行
われている。[Detailed explanation of the invention] [Industrial application field] In order to maintain corrosion resistance, reduce weight, and reduce costs, the bodies of various types of valves, pumps, etc., and pipe joints, etc., are made of synthetic resin. This is widely practiced.
従来の弁やポンプ等のボデイは、通常、その流
体通路の開口端に設けた外向フランジを、また管
接手の場合は、その端部に設けた外向フランジ
を、パイプラインにおける同様の取付フランジに
当接し、複数のボルトとナツトで、両フランジを
締めつけることにより取り付けられる。
The bodies of conventional valves, pumps, etc. usually have an outward flange at the open end of their fluid passageway, and in the case of pipe fittings, an outward flange at the end of the body, which connects to a similar mounting flange in the pipeline. It is attached by tightening both flanges with multiple bolts and nuts.
ボデイ又は管接手が、剛性および硬度において
金属よりも劣る合成樹脂でできていると、そのフ
ランジをボルトとナツトで締め付けた際、その締
め付け部以外の部分の圧接度が、やや不十分とな
ることは避けられず、両フランジ間にパツキング
が入つていても、良好なシールを得ることはでき
ない。
If the body or pipe joint is made of synthetic resin, which is inferior to metal in terms of rigidity and hardness, when the flange is tightened with bolts and nuts, the degree of pressure contact at the parts other than the tightened part may be somewhat insufficient. is unavoidable, and even if there is packing between both flanges, a good seal cannot be obtained.
このような懸念をなくすため、ボルト・ナツト
の数を多くしたり、あるいはフランジの肉厚を厚
くすることもあるが、ナツトをある程度以上強く
締めると、ナツトは、取付フランジの肉の中へ食
い込んでしまい、依然、ある程度以上の締着力を
得ることはできない。 In order to eliminate such concerns, the number of bolts and nuts may be increased, or the wall thickness of the flange may be increased, but if the nuts are tightened beyond a certain level, they may dig into the flesh of the mounting flange. Therefore, it is still not possible to obtain a tightening force above a certain level.
従つて、従来の合成樹脂製バルブ等のボデイま
たは管接手は、使用圧力に限度があるとされてい
た。 Therefore, conventional synthetic resin valve bodies or pipe joints have been considered to have a limited operating pressure.
本考案は、パイプラインにおけるこのような合
成樹脂製接手部の問題点を除くことを目的とする
ものである。 The purpose of the present invention is to eliminate such problems with synthetic resin joints in pipelines.
上記目的を達成するため、本考案においては、
合成樹脂製筒状流路の外側端に一体形成された取
付フランジに、外側面に、内周縁より外周方向に
向かう環状凹入段部を有し、かつ内外周縁部にや
や大きな丸味を付けた環状芯金を埋設し、かつ該
取付フランジに、環状芯金をも貫通するボルト挿
入用孔を穿設してある。
In order to achieve the above purpose, in this invention,
The mounting flange integrally formed on the outer end of the synthetic resin cylindrical channel has an annular recessed step extending from the inner circumferential edge toward the outer circumference on the outer surface, and the inner and outer circumferential edges are slightly rounded. An annular core metal is embedded therein, and a bolt insertion hole that also passes through the annular core metal is bored in the mounting flange.
環状芯金の存在により、合成樹脂製の取付フラ
ンジの変形及び圧縮は抑止されるとともに、相手
側の取付フランジとの接触圧力は、その全面に亘
つて、ほぼ均一に保たれるので、上記した従来の
合成樹脂製接手部の欠点は除去される。
Due to the presence of the annular core metal, the deformation and compression of the synthetic resin mounting flange is suppressed, and the contact pressure with the mating mounting flange is maintained almost uniformly over its entire surface. The disadvantages of conventional synthetic resin joints are eliminated.
第1図は、本考案を、ダイヤフラムバルブのボ
デイに適用した例を示す。
FIG. 1 shows an example in which the present invention is applied to the body of a diaphragm valve.
ダイヤフラムバルブ自体は公知であり、かつ本
考案と直接の関係はないので、その詳細な説明は
省略する。 Since the diaphragm valve itself is well known and has no direct relation to the present invention, a detailed explanation thereof will be omitted.
このバルブのボデイ1は、合成樹脂を成形して
作られており、ダイヤフラム2が当接するべきウ
エイア3に続く筒状流路4,4の外側端には、そ
れぞれ周方向を向く取付フランジ5が、一体的に
形成されている。 The body 1 of this valve is made by molding synthetic resin, and mounting flanges 5 facing in the circumferential direction are provided at the outer ends of the cylindrical flow passages 4, 4 that follow the wafer 3 against which the diaphragm 2 is to come into contact. , is integrally formed.
各取付フランジ5には、腐蝕性の低い不銹鋼又
はアルミニウム等を好適とする金属性で、かつ内
外周縁部に、やや大きな丸味を付けた環状芯金6
が埋設されている。 Each mounting flange 5 has an annular core metal 6 made of metal, preferably stainless steel or aluminum with low corrosion resistance, and having slightly larger roundness on the inner and outer peripheral edges.
is buried.
この環状芯金6の外径及び厚さは、その周囲
に、なるべく薄肉の合成樹脂層が形成されるよう
に定められ、かつその内周縁は、取付フランジ5
の付根部に位置している。換言すれば、環状芯金
6の内径は、筒状流路4の外径とほぼ等しい。 The outer diameter and thickness of this annular core bar 6 are determined so that a synthetic resin layer as thin as possible is formed around it, and the inner circumferential edge is formed at the mounting flange 5.
It is located at the base of the. In other words, the inner diameter of the annular core metal 6 is approximately equal to the outer diameter of the cylindrical flow path 4.
環状芯金6の外側面には、その内周縁より外周
方向に向かつて、適宜の幅と深さを有する環状凹
入段部6aが設けられている。 An annular recessed step portion 6a having an appropriate width and depth is provided on the outer surface of the annular core metal 6, extending from the inner circumferential edge toward the outer circumference.
取付フランジ5とそれに埋設された環状芯金6
の要所には、締付け用ボルト7を挿入するための
複数の孔8が貫設されている。 Mounting flange 5 and annular core bar 6 embedded therein
A plurality of holes 8 for inserting tightening bolts 7 are provided at important points.
環状芯金6を取付フランジ5に埋設するには、
次のようにするのがよい。 To embed the annular core bar 6 in the mounting flange 5,
It is better to do as follows.
第2図に示すように、要所に予め孔8が穿設さ
れた環状芯金6を、金型9の内腔9aの要所に、
内腔9aと接触しないようにして、適宜保持する
とともに、金型9の要所に穿設した互いに対向す
る孔9b,9bへ、位置決めピン10,10を挿
入し、その内端部(やや小径としておくのが望ま
しい。)を、環状芯金6の孔8へ適正に嵌合させ
てから、金型9内へ未硬化の合成樹脂を注入す
る。 As shown in FIG. 2, an annular core metal 6 with holes 8 pre-drilled at key locations is placed at key locations in the inner cavity 9a of the mold 9.
The positioning pins 10, 10 are inserted into mutually opposing holes 9b, 9b drilled at key points of the mold 9, while holding them appropriately without contacting the inner cavity 9a. ) is properly fitted into the hole 8 of the annular core metal 6, and then uncured synthetic resin is injected into the mold 9.
すると、樹脂は、環状芯金6の周りに流れて、
それを包み込んだ状態で固まる。 Then, the resin flows around the annular core bar 6,
It hardens when it is wrapped around it.
固化後、位置決めピン10,10を抜いてか
ら、でき上つたボデイを、金型9より取り出す。 After solidification, the positioning pins 10, 10 are removed, and the finished body is taken out from the mold 9.
このようにして製造された本考案のバルブのボ
デイ1のパイプラインへの取り付け要領は、従来
のものと変わるところはない。 The procedure for attaching the valve body 1 of the present invention manufactured in this manner to a pipeline is the same as that of conventional valves.
例えば、第3図に示すように、取付部における
筒状流路4′の先端に、前記ボデイ1におけると
同様の環状芯金6′が埋設された外向取付フラン
ジ5′を形成しておく。 For example, as shown in FIG. 3, an outward mounting flange 5' in which an annular core metal 6' similar to that in the body 1 is embedded is formed at the tip of the cylindrical flow path 4' in the mounting portion.
両取付フランジ5,5′を、その間にパツキン
グ11を挾んで対向させ、各孔8にボルト7を挿
入するとともに、ナツト12で締付ける。 Both mounting flanges 5 and 5' are opposed to each other with packing 11 held between them, and bolts 7 are inserted into each hole 8 and tightened with nuts 12.
環状芯金6の内周縁部における取付フランジ5
の耐力をより大とするためには、第3図の6b,
6b′に示すように、環状芯金6の内周縁を、筒状
流路4,4′の内周近くまで延長すればよい。 Mounting flange 5 at the inner peripheral edge of the annular core bar 6
In order to increase the yield strength of 6b in Fig. 3,
As shown in 6b', the inner circumferential edge of the annular core bar 6 may be extended to near the inner circumference of the cylindrical channels 4, 4'.
なお、第3図に示した相手側取付部は、通常の
金属フランジであつてもよい。 Note that the mating attachment portion shown in FIG. 3 may be a normal metal flange.
本考案によると、環状芯金の存在により、合成
樹脂製の取付フランジの変形及び圧縮は抑止され
るとともに、対向する取付フランジ同士の接触圧
力は、その全面に亘つて、ほぼ均一に保たれるの
で、冒頭で述べた従来の合成樹脂製ボデイの欠点
は除去される。
According to the present invention, the presence of the annular core metal prevents deformation and compression of the synthetic resin mounting flange, and the contact pressure between opposing mounting flanges is maintained almost uniformly over the entire surface. Therefore, the drawbacks of the conventional synthetic resin body mentioned at the beginning are eliminated.
環状芯金の外側面に、その内周縁より外周方向
に向かう凹入段部を形成してあるので、環状芯金
の内周縁と取付フランジの外側面に至る間の合成
樹脂層の厚さは、他の部分よりも大であり、環状
芯金の存在にも拘らず、取付フランジの付根部に
おける合成樹脂部に作用する曲げ応力や軸線方向
の剪断力は大である。 Since the outer surface of the annular mandrel is formed with a recessed step extending from the inner periphery toward the outer periphery, the thickness of the synthetic resin layer between the inner periphery of the annular mandrel and the outer surface of the mounting flange is , is larger than other parts, and despite the existence of the annular core metal, the bending stress and axial shearing force acting on the synthetic resin part at the base of the mounting flange are large.
環状芯金の周囲は、合成樹脂で完全に覆われて
いるので、その材質の如何を問わず、腐蝕した
り、銹びたりするおそれはない。 Since the periphery of the annular core metal is completely covered with synthetic resin, there is no risk of corrosion or rusting, regardless of the material.
環状芯金の内外周縁部には、やや大きな丸味を
つけてあるので、合成樹脂の成形時、その固化に
伴う収縮によつて、合成樹脂の環状芯金の内外周
縁部と接触する部分に、大きな応力が発生して、
クラツクを発生することはなく、歩留り率は良好
である。 The inner and outer edges of the annular core are slightly rounded, so when the synthetic resin is molded, shrinkage due to solidification causes the parts of the synthetic resin that come into contact with the inner and outer edges of the annular core to A large stress is generated,
No cracks occur and the yield rate is good.
第1図は、本考案のダイヤフラムバルブに適用
した例の右半部を縦断して示す正面図である。第
2図は取付フランジに芯金を埋設する好ましい要
領を説明するための簡略化された要部縦断面図で
ある。第3図は、第1図におけるダイヤフラムバ
ルブをパイプラインへ取付ける要領を示す要部拡
大縦断面図である。
1……ボデイ、2……ダイヤフラム、3……ウ
エイア、4……筒状流路、5……取付フランジ、
6……環状芯金、6a……凹入段部、7……ボル
ト、8……孔、9……金型、9a……内腔、9b
……孔、10……位置決めピン、11……パツキ
ング、12……ナツト。
FIG. 1 is a front view showing the right half of an example applied to the diaphragm valve of the present invention, taken longitudinally. FIG. 2 is a simplified longitudinal sectional view of the main part for explaining a preferred method of embedding the core metal in the mounting flange. FIG. 3 is an enlarged vertical cross-sectional view of a main part showing how to attach the diaphragm valve in FIG. 1 to a pipeline. 1...Body, 2...Diaphragm, 3...Wayer, 4...Cylindrical channel, 5...Mounting flange,
6... Annular core bar, 6a... Recessed step, 7... Bolt, 8... Hole, 9... Mold, 9a... Inner cavity, 9b
... hole, 10 ... positioning pin, 11 ... packing, 12 ... nut.
Claims (1)
取付フランジに、外側面に、内周縁より外周方向
に向かう環状凹入段部を有し、かつ内外周縁部に
やや大きな丸味を付けた環状芯金を埋設し、かつ
該取付フランジに、環状芯金をも貫通するボルト
挿入用孔を穿設してなるパイプラインにおける合
成樹脂製接手部。 The mounting flange integrally formed on the outer end of the synthetic resin cylindrical channel has an annular recessed step extending from the inner circumferential edge toward the outer circumference on the outer surface, and the inner and outer circumferential edges are slightly rounded. A synthetic resin joint for a pipeline, in which an annular core metal is buried and a bolt insertion hole that also passes through the annular core metal is bored in the mounting flange.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4329684U JPS60156281U (en) | 1984-03-28 | 1984-03-28 | Synthetic resin joints in pipelines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4329684U JPS60156281U (en) | 1984-03-28 | 1984-03-28 | Synthetic resin joints in pipelines |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60156281U JPS60156281U (en) | 1985-10-17 |
JPH029185Y2 true JPH029185Y2 (en) | 1990-03-06 |
Family
ID=30554840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4329684U Granted JPS60156281U (en) | 1984-03-28 | 1984-03-28 | Synthetic resin joints in pipelines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60156281U (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2431639A4 (en) * | 2009-05-15 | 2013-12-04 | Shie Yu Machine Parts Ind Co Ltd | Diaphragm valve |
CN111692397A (en) * | 2016-07-20 | 2020-09-22 | 李相璇 | Pipe coupling device capable of preventing twisting |
JP2019132374A (en) * | 2018-02-01 | 2019-08-08 | 積水化学工業株式会社 | Valve flange and diaphragm valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932793B2 (en) * | 1975-12-27 | 1984-08-10 | キヤノン株式会社 | Genzo Sochi |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5113022U (en) * | 1974-07-17 | 1976-01-30 | ||
JPS5932793U (en) * | 1982-08-26 | 1984-02-29 | 積水化学工業株式会社 | Synthetic resin flange joint |
-
1984
- 1984-03-28 JP JP4329684U patent/JPS60156281U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932793B2 (en) * | 1975-12-27 | 1984-08-10 | キヤノン株式会社 | Genzo Sochi |
Also Published As
Publication number | Publication date |
---|---|
JPS60156281U (en) | 1985-10-17 |
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