JPH0645115Y2 - Ring-shaped sealing material for pipe joint sealing method - Google Patents
Ring-shaped sealing material for pipe joint sealing methodInfo
- Publication number
- JPH0645115Y2 JPH0645115Y2 JP773789U JP773789U JPH0645115Y2 JP H0645115 Y2 JPH0645115 Y2 JP H0645115Y2 JP 773789 U JP773789 U JP 773789U JP 773789 U JP773789 U JP 773789U JP H0645115 Y2 JPH0645115 Y2 JP H0645115Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe joint
- annular
- sealing material
- seal
- ring
- 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
Links
Landscapes
- Joints With Pressure Members (AREA)
Description
【考案の詳細な説明】 ＜産業上の利用分野＞ この考案は樹脂ライニングされたパッキン型継手、殊に
メカニカル管継手と、これに接続する管体とのシール工
法に使用される環状成形シール材に関するものである。[Detailed Description of the Invention] <Industrial field of application> The present invention is a ring-shaped sealing material used for a sealing method between a resin-lined packing type joint, particularly a mechanical pipe joint and a pipe body connected to the mechanical pipe joint. It is about.
＜従来の技術＞ ガス、液体等の流体を輸送する管体と該管体相互を接続
する継手管との接続部の防水あるいは防蝕は、この部分
の外側をテープでスパイラル状に巻き付けたり熱収縮性
チューブで被覆して加熱収縮させる方法や接続部に螺合
したナットによるゴムパッキングまたはＯリングを締付
ける等の方法が採用されている。<Prior Art> Waterproofing or anticorrosion of a connecting portion between a pipe for transporting a fluid such as gas and liquid and a joint pipe for connecting the pipes is performed by winding the outside of this portion with tape in a spiral shape or by heat shrinkage. A method of covering with a flexible tube to heat-shrink or a method of tightening a rubber packing or an O-ring with a nut screwed to the connection portion is adopted.
＜考案が解決しようとする課題＞ しかしながら、最近の管体は防蝕の目的のために鋼管表
面に合成樹脂等でライニング層を形成したものが多く、
継手もメカニカル継手が多く使用されているが、その防
蝕方法としての従来のテープ巻き付けや熱収縮チューブ
の被覆では施工性が悪く、満足な結果が得られていない
のが現状である。<Problems to be solved by the invention> However, many recent tubes have a lining layer made of synthetic resin or the like on the surface of the steel tube for the purpose of corrosion protection.
Mechanical joints are often used as joints, but the workability is not good and the satisfactory results have not been obtained with conventional tape wrapping or coating of heat shrinkable tubes as the anticorrosion method.
一方、樹脂ライニングされたパッキン型管継手と管体と
の水密方法として管継手内のパッキンでシールする工法
があるが曲げ、引っ張り時の水密性は不充分なものであ
った。On the other hand, as a watertight method between the resin-lined packing type pipe joint and the pipe body, there is a method of sealing with a packing inside the pipe joint, but the watertightness when bending and pulling was insufficient.
最近、加圧により変形する中空の環状成形体の中空部に
加圧により流出する半流動性のシール材料を充填し、管
継手に螺合する締付け環により前記成形体を加圧変形さ
せてシール材料を押し出し、締付け環と管体との間隙を
閉塞密閉する管継手シール工法およびそれに使用される
シール材料が商品化されているが、管体の偏心あるいは
締付け時のパイプの変形等の追従が悪いという欠点があ
る。Recently, the hollow portion of a hollow annular molded body that is deformed by pressure is filled with a semi-fluid sealing material that flows out by pressure, and the molded body is deformed by pressure with a tightening ring that is screwed into a pipe joint to seal. The pipe joint seal construction method that extrudes the material and closes and closes the gap between the tightening ring and the pipe body and the seal material used for it are commercialized, but it is possible to follow the eccentricity of the pipe body or the deformation of the pipe when tightening. It has the drawback of being bad.
＜課題を解決するための手段＞ この考案は上記の問題点を解決するべく検討の結果、な
されたものである。<Means for Solving the Problems> The present invention has been made as a result of studies to solve the above problems.
即ち、この考案は加圧により変形する可撓性ゴムまたは
プラスチック材料からなる断面ほぼコ字状の環状成形体
の中空部に天然ゴムもしくは合成ゴムを主成分とした半
流動性シール材に中空ビーズを混入したシール材料を充
填した管継手シール工法用環状成形シール材を提供する
ことを目的とするものである。That is, the invention is a semi-fluid sealing material containing natural rubber or synthetic rubber as a main component in a hollow portion of an annular molded body made of a flexible rubber or a plastic material which is deformed by pressure and having a substantially U-shaped cross section. An object of the present invention is to provide an annular molded seal material for a pipe joint seal construction method, which is filled with a seal material mixed with.
＜作用＞ この考案は上記したように半流動性シール材に独立気泡
体となっている中空ビーズを混入した環状成形シール材
とすることにより偏心あるいは変形された継手において
もゴム弾性あるいは復元力をさらに向上させることがで
きるのである。<Effect> The present invention uses the semi-fluidic sealing material as the annular molding sealing material in which the hollow beads as the closed cells are mixed, so that the rubber elasticity or the restoring force can be obtained even in an eccentric or deformed joint. It can be further improved.
第１図は、この考案の環状成形シール材Ｂの断面図であ
って、５は加圧によって変形する可撓性ゴムまたはプラ
スチック材料からなる断面がほぼコ字状の環状成形体で
あり、該成形体５の中空部に中空ビーズ８を混入した半
流動性シール材６を充填した構造を有するものである。FIG. 1 is a cross-sectional view of an annular molded seal material B of the present invention, in which 5 is an annular molded body made of a flexible rubber or a plastic material that is deformed by pressure and having a substantially U-shaped cross section. The molded body 5 has a structure in which the hollow portion of the molded body 5 is filled with a semi-fluidic sealing material 6 in which hollow beads 8 are mixed.
＜実施例＞ 以下、この考案の実施例を添付図面により説明する。<Embodiment> An embodiment of the present invention will be described below with reference to the accompanying drawings.
まず、第２図に示すように、先端内周を傾斜面１とした
拡径部２の内周に内ねじ３を刻設し、外周全体に合成樹
脂ライニング層４を形成した締付け環Ｄを管体Ｃに外挿
する。First, as shown in FIG. 2, an inner screw 3 is engraved on the inner circumference of the enlarged diameter portion 2 having the inner circumference of the tip as the inclined surface 1, and the tightening ring D having the synthetic resin lining layer 4 formed on the entire outer circumference is formed. Extrapolate to tube C.
次に加圧により変形する可撓性ゴムまたはプラスチック
材料からなる断面ほぼコ字状の環状成形体５の中空部に
半流動性シール材料６を充填してなる変形性環状成形シ
ール材Ｂを開口部７が環Ｄの側となるように外挿し、続
いて、ほぼ馬蹄形を有し内周面に複数個の係合突起を有
する留め金具10、硬質ゴムまたはプラスチックからなる
押えリング11およびゴムなどからなる断面ほぼ台形状の
環状パッキン12をそれぞれ管体Ｃに外挿する。Next, a deformable annular molding seal material B formed by filling a semi-fluidic sealing material 6 into the hollow portion of an annular molding 5 having a substantially U-shaped cross section made of a flexible rubber or a plastic material which is deformed by pressurization is opened. The part 7 is externally inserted so as to be on the side of the ring D, and subsequently, a fastener 10 having a substantially horseshoe shape and a plurality of engaging protrusions on the inner peripheral surface, a holding ring 11 made of hard rubber or plastic, and rubber, etc. The annular packings 12 each having a substantially trapezoidal shape are externally inserted into the tubular body C.
一方、管継手Ａは環状パッキン12を抱持する拡径部13を
具えると共に外周部分には、締付け環Ｄの内ねじ３に螺
合する外ねじ14が刻設されている。On the other hand, the pipe joint A has an enlarged diameter portion 13 that holds the annular packing 12, and an outer screw 14 that is screwed into the inner screw 3 of the tightening ring D is engraved on the outer peripheral portion.
このように構成されてなる管継手Ａには、前記の如く締
付け環Ｄ、変形性環状成形シール材Ｂ、留め金具10、押
えリング11および環状パッキング12がこの順序で外挿さ
れた管体Ｃの端部が挿入されるものである。As described above, the pipe joint A having the above-described structure is provided with the tightening ring D, the deformable annular molded seal material B, the fastener 10, the retaining ring 11, and the annular packing 12 in this order. The end of is inserted.
この状態で締付け環Ｄと管継手Ａとをねじ結合させるこ
とにより、環状パッキン12は管継手Ａの拡径部13内に圧
入密嵌されて管体Ｃを流れる流体へのシール効果が得ら
れると共に、留め金具10はほぼ円形に変形して係合突起
が管体Ｃのライニング層に食い込んで管体Ｃを確実に固
定するものである。By screwing the tightening ring D and the pipe joint A in this state, the annular packing 12 is press-fitted and tightly fitted into the expanded diameter portion 13 of the pipe joint A to obtain a sealing effect against the fluid flowing in the pipe body C. At the same time, the fastener 10 is deformed into a substantially circular shape, and the engaging protrusion bites into the lining layer of the tube C to securely fix the tube C.
更に、シール材Ｂは締付け環Ｄの拡径部２内の傾斜面１
で押圧されて変形し、第３図に示すように充填したシー
ル材料６を開口部７から所要量押し出し、環Ｄと管体Ｃ
との間隙内を充填して上記間隙を閉鎖密閉し、留め金具
10の腐蝕等を防止するものである。Further, the sealing material B is the inclined surface 1 in the expanded diameter portion 2 of the tightening ring D.
The sealing material 6 is pressed and deformed by the press, and the filled sealing material 6 is extruded from the opening 7 by a required amount as shown in FIG.
Fill the inside of the gap with and close and seal the above gap,
It prevents the corrosion of 10.
尚、上記において、環状成形体５は加圧により変形する
可撓性ゴム又はプラスチック材料にて構成されるが、そ
の一例を示すとブチルゴム、エチレンプロピレンゴムな
どのゴム類またはポリ塩化ビニル樹脂（可塑剤含量５〜
50重量部）、ポリエチレン樹脂、ポリプロピレン樹脂、
ポリエステル樹脂などが挙げられる。該成形体５の形状
としては、断面がほぼコ字状であれば特に制限されない
が、例えば第４図（ａ）に示すように開口部７にシール
15を施しておいて、使用時にこれを剥すか或はこのまま
外挿して締付け環Ｄの加圧により破断させるようにして
もよいものである。第４図（ｂ）は成形体５の外周壁面
に切れ目または切れ溝９を設け、環Ｄにより加圧したと
き成形体５の外周壁面にシワが入らないようにしたもの
である。In the above description, the annular molded body 5 is made of a flexible rubber or a plastic material that is deformed by pressurization. As an example, rubbers such as butyl rubber and ethylene propylene rubber or polyvinyl chloride resin (plastic Agent content 5
50 parts by weight), polyethylene resin, polypropylene resin,
Examples include polyester resins. The shape of the molded body 5 is not particularly limited as long as it has a substantially U-shaped cross section. For example, as shown in FIG.
15 may be provided, and it may be peeled off at the time of use, or may be externally inserted as it is so as to be broken by the pressurization of the tightening ring D. FIG. 4 (b) shows that the outer peripheral wall surface of the molded body 5 is provided with cuts or cut grooves 9 so that no wrinkles are formed on the outer peripheral wall surface of the molded body 5 when pressed by the ring D.
前記半流動性シール材６としてはブチルゴム系、シリコ
ーンゴム系、ポリウレタン系、ポリサルファイド系など
のシーリング剤組成物の中にアクリロニトリル−ポリ塩
化ビニル共重合体で作られた中空体ビーズを0.05〜10重
量部程度混入したシール材が用いられるが、好ましくは
１×102〜１×105（at20℃）ポイズの粘度を有するもの
が好ましく、このことにより反発弾性及び復元力を持た
せたシール材とすることができるのである。As the semi-fluid sealing material 6, a hollow body bead made of acrylonitrile-polyvinyl chloride copolymer in a sealing agent composition such as butyl rubber-based, silicone rubber-based, polyurethane-based, polysulfide-based, etc. A sealing material mixed with about 1 part is preferably used, but a sealing material having a viscosity of 1 × 10 2 to 1 × 10 5 (at 20 ° C.) poise is preferable, and as a result, a sealing material having impact resilience and restoring force is obtained. You can do it.
この考案で半流動性シール材６に混入する中空ビーズと
しては上述したようにアクリロニトリル−ポリ塩化ビニ
ル共重合体から作られたものが用いられるが、その粒径
は20〜80μ、比重としては0.015〜0.025が好ましい。As the hollow beads mixed in the semi-fluidic sealing material 6 in the present invention, those made of acrylonitrile-polyvinyl chloride copolymer as described above are used, but the particle size is 20 to 80 μm, and the specific gravity is 0.015. ~ 0.025 is preferred.
＜考案の効果＞ この考案によれば締付け環と管体との間に生じる間隔は
締付けにより押し出されるシール材で環口の金属部が閉
鎖密閉されるので留め金具等が腐蝕することなく、しか
もシール作業において偏心により変形した部分でも中空
ビーズによる反発弾性が良好なため迅速な復元力によ
り、より確実にシールできるものであって、且つシール
作業も簡単で迅速に行なうことができるという特徴を有
するのである。<Effects of the Invention> According to the present invention, the space between the tightening ring and the pipe body is sealed and sealed by the sealing member that is pushed out by the tightening to prevent the metal parts of the ring mouth from being corroded. Even in the part deformed due to eccentricity in the sealing work, the repulsive elasticity due to the hollow beads is good, so it is possible to seal more reliably with a quick restoring force, and the sealing work can be performed easily and quickly. Of.
第１図はこの考案の環状成形シール材の構造を示す縦断
面図、第２図はこの考案を実施する状態を示す縦断面
図、第３図は実施後の状態を示す縦断面図、第４図
（ａ）および（ｂ）は変形性環状シール材の他の実施例
を示す縦断面図である。 Ａ…管継手、Ｂ…変形性環状成形シール材 Ｃ…管体、Ｄ…締付け環 ５…環状成形体、６…半流動性シール材 ７…開口部、８…中空ビーズFIG. 1 is a vertical cross-sectional view showing the structure of an annular molded sealing material of the present invention, FIG. 2 is a vertical cross-sectional view showing a state in which the present invention is implemented, and FIG. 3 is a vertical cross-sectional view showing a state after the implementation. 4A and 4B are longitudinal sectional views showing another embodiment of the deformable annular sealing material. A ... Pipe joint, B ... Deformable annular molding sealing material C ... Pipe, D ... Tightening ring 5 ... Annular molding, 6 ... Semi-fluid sealing material 7 ... Opening part, 8 ... Hollow beads
Claims (1)
ール工法であって、管体に、締付け環、断面ほぼコ字状
の環状成形体の中空部に半流動性シール材料を充填して
なる変形性環状成形シール材、留め金具、押えリングお
よび環状パッキンを外挿すると共に前記管体端部を前記
管継手に挿入し、前記締付け環と管継手とをねじ結合し
て、前記環状成形シール材を締付けて加圧変形させ、成
形体中の半流動性シール材を締付け環と管体との間隙に
押し出して同間隙を閉塞密閉する管継手シール工法にお
いて、加圧により変形する可撓性ゴムまたはプラスチッ
ク材料からなる断面ほぼコ字状の環状成形体の中空部に
天然ゴムもしくは合成ゴムを主成分とした半流動性シー
ル材に中空ビーズを混入してなるシール材料を充填して
なる管継手シール工法用環状成形シール材。1. A resin-lined packing type pipe joint seal construction method, which comprises a tube body, a clamping ring, and a semi-fluid sealing material filled in the hollow portion of an annular molded body having a substantially U-shaped cross section. Annular molding seal material, fasteners, holding ring and annular packing are externally inserted and the pipe end is inserted into the pipe joint, and the tightening ring and the pipe joint are screwed together to form the annular molding seal material. Flexible rubber that is deformed by pressure in the pipe joint seal construction method in which the semi-fluid seal material in the molded body is pushed out into the gap between the tightening ring and the pipe body to close and seal Alternatively, a pipe joint formed by filling a hollow material of an annular molded body made of a plastic material and having a substantially U-shaped cross section with a sealing material formed by mixing hollow beads into a semi-fluidic sealing material whose main component is natural rubber or synthetic rubber. sticker Law annular shaped seal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP773789U JPH0645115Y2 (en) | 1989-01-26 | 1989-01-26 | Ring-shaped sealing material for pipe joint sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP773789U JPH0645115Y2 (en) | 1989-01-26 | 1989-01-26 | Ring-shaped sealing material for pipe joint sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02101191U JPH02101191U (en) | 1990-08-13 |
| JPH0645115Y2 true JPH0645115Y2 (en) | 1994-11-16 |
Family
ID=31213004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP773789U Expired - Lifetime JPH0645115Y2 (en) | 1989-01-26 | 1989-01-26 | Ring-shaped sealing material for pipe joint sealing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645115Y2 (en) |
-
1989
- 1989-01-26 JP JP773789U patent/JPH0645115Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02101191U (en) | 1990-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |