JPH0569479U - Half split color fitting - Google Patents

Abstract

(57)【要約】 【目的】 半割カラー継手のシール性を改良することを
目的とする。 【構成】 軸方向端縁２Ａ、２Ａに互いに接合可能な折
り返し部３、３を有し円周２Ｂ、２Ｂ及び軸方向端縁２
Ａ、２Ａ内面に沿って断面三角形状の弾性パッキン部材
４が一体的に設けられた半割カラー５、５と、この半割
カラー５、５の両円周２Ｂ、２Ｂ端縁外周に沿って当て
がわれ、かつ半割カラー５、５の折り返し部３、３で共
に固定される半割の押し輪部材６、６と、押し輪部材
６、６の円周方向に沿った適所に径方向に沿って形成さ
れたネジ孔６Ａ、６Ａにネジ込まれる押さえボルト７…
７とから構成され、押し輪部材６、６にネジ込まれる押
さえボルト７…７により径方向均一な押圧力を得る。 (57) [Summary] [Purpose] The purpose is to improve the sealing performance of half collar joints. [Structure] Circumferential portions 2B, 2B and axial end edges 2 have folding portions 3, 3 that can be joined to the axial end edges 2A, 2A.
A and 2A, along which the elastic packing members 4 having a triangular cross section are integrally provided, and the half collars 5 and 5, and the circumferences 2B and 2B of both circumferences of the half collars 5 and 5, respectively. Half-push push-wheel members 6, 6 which are applied and fixed together at the folded-back portions 3, 3 of the half-split collars 5, 5, and radial positions at appropriate positions along the circumferential direction of the push-ring members 6, 6. 6A, which are screwed into the screw holes 6A formed along
7, and the pressing bolts 7 ... 7 screwed into the push ring members 6, 6 obtain a uniform pressing force in the radial direction.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

この考案は半割カラー継手に関する。 This invention relates to a half collar joint.

【０００２】[0002]

【従来の技術】[Prior Art]

従来、既設埋設管に破口等による漏洩が生じた場合、新規管の取り替え工事に 代えて半割カラー継手による補修工事を行う場合がある。 この補修工事は、図５に示すように既設管外径に合う内径の２つ割管Ｐ、Ｐの 割り部分に接合用折り返し部Ｂ…Ｂを径方向に突設してなる、いわゆる半割カラ ーＡ、ＡをシールパッキンＣを介して漏洩部分に当てがい、対面する折り返し部 Ｂ、Ｂ同士をボルトナットなどの締結部材Ｄ…Ｄで緊締して漏洩部分を封鎖する 工法により行われる。 この半割カラー継手による補修工事は、新規管の取り替え工事に比し、周囲の 掘削面積が非常に狭くて済み、また工事そのものも非常に迅速に終了する利点を 有する。 Conventionally, when a leak occurs in an existing buried pipe due to a breakage, etc., repair work using a half-split collar joint may be performed instead of replacing the new pipe. As shown in FIG. 5, this repair work is a so-called half-splitting, in which the joining folds B ... B are provided in the radial direction at the split parts of the split pipes P, P having an inner diameter that matches the existing pipe outer diameter. The color A, A is applied to the leaked portion via the seal packing C, and the folded portions B, B facing each other are tightened with fastening members D ... D such as bolts and nuts to seal the leaked portion. The repair work using this half collar joint has the advantage that the surrounding excavation area is much smaller than the replacement work for a new pipe, and the work itself is completed very quickly.

【０００３】[0003]

【従来の技術の問題点】[Problems of conventional technology]

しかしながら、上記半割カラー継手を管外周に当てがい緊締した時、その締付 力は図６矢印Ｆで示すように専ら折り返し部Ｂ、Ｂに対する締付け力であるので 、管全周に対する径方向の均一な締付力が得難く、このため、折り返し部Ｂ、Ｂ 近傍部分では径方向締付力が殆ど作用せず、この部分のシール性に問題が残る欠 点があった。 特に、外力によりある程度撓み性を有する大径管の場合、管の撓 みの変動により上記締付け力の不均一分布によりシール性が著しく低下する問題 があった。 However, when the above-mentioned half-split collar joint is applied to the outer circumference of the pipe and tightened, the tightening force is exclusively for the folded portions B, B as shown by the arrow F in Fig. 6, so that the radial direction with respect to the whole circumference of the pipe Since it was difficult to obtain a uniform tightening force, the radial direction tightening force hardly acted on the folded-back portions B and B, and there was a problem that the sealing property of this portion remained a problem. In particular, in the case of a large-diameter pipe having some flexibility due to an external force, there is a problem that the sealing property is significantly deteriorated due to the uneven distribution of the tightening force due to the variation in the bending of the pipe.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

この考案は上記問題点に鑑み、管補修工事が迅速に行える利点を損なうことな く、シール性も良好と成しえる半割カラー継手を提供することを目的としてなさ れたものである。 In view of the above problems, the present invention has been made with the object of providing a half-split collar joint that does not impair the advantage of quick pipe repair work and that also has good sealing properties.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

即ち、この考案の半割カラー継手は、管外周を覆う曲率に湾曲形成された湾曲 板であって、軸方向端縁に互いに接合可能な折り返し部が形成され、円周及び軸 方向端縁内面に沿って断面三角形状の弾性パッキン部材が一体的に設けられた半 割カラーと、該半割カラーの両円周端縁外周に沿って当てがわれ、かつ前記半割 カラーの折り返し部で共に固定される半割の押し輪部材と、該押し輪部材の円周 方向に沿った適所に径方向に沿って形成されたネジ孔にネジ込まれる押さえボル トとからなることを特徴とするものである。 That is, the half collar joint of the present invention is a curved plate curved so as to cover the outer circumference of the pipe, and the folded portions that can be joined to each other are formed at the end in the axial direction. Along with the elastic packing member having a triangular cross-section integrally provided, and applied along the outer circumference of both circumferential end edges of the half collar, and at the folded portion of the half collar together. It is characterized by comprising a half-pushed push-wheel member to be fixed, and a holding bolt screwed into a screw hole formed in a radial direction at a proper position along the circumferential direction of the push-ring member. Is.

【０００６】[0006]

【実施例】【Example】

次に、この考案の実施例を説明する。 図１はこの考案の実施例の斜視図、図２は実施例の断面図、図３は使用状態に おける実施例の要部拡大断面図、図４は同要部拡大断面図である。 Next, an embodiment of this invention will be described. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a cross-sectional view of the embodiment, FIG. 3 is an enlarged cross-sectional view of an essential part of the embodiment in use, and FIG. 4 is an enlarged cross-sectional view of the essential part.

【０００７】 この考案の半割カラー継手１は、管外周を覆う曲率に湾曲形成された湾曲板２ であって、軸方向端縁２Ａ、２Ａに互いに接合可能な折り返し部３、３が形成さ れ、円周２Ｂ、２Ｂ及び軸方向端縁２Ａ、２Ａ内面に沿って断面三角形状の弾性 パッキン部材４が一体的に設けられた半割カラー５、５と、この半割カラー５、 ５の両円周２Ｂ、２Ｂ端縁外周に沿って当てがわれ、かつ半割カラー５、５の折 り返し部３、３で共に固定される半割の押し輪部材６、６と、押し輪部材６、６ の円周方向に沿った適所に径方向に沿って形成されたネジ孔６Ａ、６Ａにネジ込 まれる押さえボルト７…７とから構成されている。A half collar joint 1 according to the present invention is a curved plate 2 curved to have a curvature covering an outer circumference of a pipe, and folding parts 3, 3 which can be joined to each other are formed at axial end edges 2A, 2A. Accordingly, half elastic collars 5 and 5 integrally provided with elastic packing members 4 having a triangular cross section along the circumferences 2B and 2B and the inner surfaces of the axial end edges 2A and 2A, and the half elastic collars 5 and 5. Push ring members 6, 6 which are applied along both outer circumferences 2B and 2B and are fixed together at the folded portions 3, 3 of the half collars 5, 5, and the push ring members. 6, 6 are formed of screw holes 6A, 6A formed in radial positions at appropriate positions along the circumferential direction, and holding bolts 7 ... 7 screwed into the screw holes 6A.

【０００８】 上記実施例において、半割カラー５、５は、補修使用とする管と同じ材質とさ れ、例えば、管がＦＲＰ管の場合は半割カラー５、５もＦＲＰ製、同鋳鉄管の場 合は半割カラー５、５も鋳鉄製とされる。 また半割カラー５、５内面周囲に沿って設けられる断面三角形状の弾性パッキ ン部材４は、径方向圧縮力を受けて容易に変形する弾性のものとされる。In the above embodiment, the half collars 5 and 5 are made of the same material as the pipe to be used for repair. For example, when the pipe is an FRP pipe, the half collars 5 and 5 are also made of FRP and the same cast iron pipe. In this case, the half collars 5 and 5 are also made of cast iron. Further, the elastic packing member 4 having a triangular cross-section provided along the inner surfaces of the half collars 5 and 5 is made of an elastic material which is easily deformed by receiving a compressive force in the radial direction.

【０００９】[0009]

【作用】[Action]

この考案の半割カラー継手１により補修を行う場合、図２に示すように、補修 すべき管Ｇ外周に半割カラー５、５を当てがった後、その外周に半割の押し輪部 材６、６を当てがい締結ボルトナット８、８により管外周に固定する。 この時の締付力は専ら両者を引付ける力だけであるので、折り返し部３、３近 傍における径方向締付け力は殆ど無い。 When repairing with the half collar joint 1 of the present invention, as shown in FIG. 2, after applying the half collars 5 and 5 to the outer circumference of the pipe G to be repaired, the half push ring portion is applied to the outer circumference. The materials 6 and 6 are fixed to the outer circumference of the pipe by applying fastening bolts and nuts 8 and 8. Since the tightening force at this time is only a force for attracting the both, there is almost no radial tightening force in the vicinity of the folded-back portions 3, 3.

【００１０】 次いで、押し輪部材６、６のねじ孔６Ａ、６Ａに押さえボルト７…７をねじ込 み、そのネジ込み量により半割カラー５、５を押圧する。 押さえボルト７、７は半割カラー５、５を径方向へ押圧するので、この力によ り周囲に沿った均一な締付け力が得られる。 同時に、締付前は図３に示す状態であった断面三角形状の弾性パッキン部材４ は、締付力の増加と共に図４に示すように変形し、特に折り返し部３、３の対向 隙間Ｐに圧延されて延出し、この隙間Ｐを完全にシールする。 またこの断面三角形状の弾性パッキン部材４は、他の部分においても同様に圧 縮変形されて管Ｇ外周と半割カラー５、５内面との間のシールを完全に行う。Next, pressing bolts 7 ... 7 are screwed into the screw holes 6A, 6A of the push ring members 6, 6, and the half collars 5, 5 are pressed by the screwing amount. Since the holding bolts 7, 7 press the half collars 5, 5 in the radial direction, this force provides a uniform tightening force along the circumference. At the same time, the elastic packing member 4 having a triangular cross section, which was in the state shown in FIG. 3 before tightening, deforms as shown in FIG. 4 with an increase in tightening force, and especially in the facing gap P between the folded portions 3, 3. It is rolled and extended to completely seal this gap P. The elastic packing member 4 having a triangular cross section is also compressed and deformed in the other portions as well to completely seal the outer circumference of the pipe G and the inner surfaces of the half collars 5 and 5.

【００１１】[0011]

【考案の効果】[Effect of the device]

この考案は以上説明したように、半割カラー５、５の外周にさらに押し輪部材 ６、６を当てがい、この押し輪部材６、６にネジ込む押さえボルト７…７により 半割カラー５、５を押圧し、内面に形成したシール用の弾性パッキン部材４を圧 縮させるので確実な止水ができる。また弾性パッキン部材４は断面三角形状をな すので変形し易く、管がある程度撓みなどにより変形しても追従変形するので撓 み性を有する管であっても補修が完全に行えるといった実用的効果を有する。 As described above, this invention applies the push ring members 6 and 6 to the outer circumferences of the half collars 5 and 5 and presses the push bolts 7 ... Since the elastic packing member 4 for sealing formed on the inner surface is compressed by pressing 5, the water can be surely stopped. Further, since the elastic packing member 4 has a triangular cross-section, it is easily deformed, and even if the pipe is deformed to some extent, it is deformed accordingly, so that even a flexible pipe can be completely repaired. Have.

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

【図１】この考案の実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of the present invention.

【図２】この考案の実施例の断面図である。FIG. 2 is a sectional view of an embodiment of the present invention.

【図３】実施例の要部拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part of the embodiment.

【図４】使用状態における実施例の要部拡大断面図であ
る。FIG. 4 is an enlarged cross-sectional view of a main part of the embodiment in a use state.

【図５】従来例の斜視図である。FIG. 5 is a perspective view of a conventional example.

【図６】従来例の断面図である。FIG. 6 is a sectional view of a conventional example.

【符号の説明】[Explanation of symbols]

１…半割カラー継手 ２…管外周を覆う曲率に湾曲形成された湾曲板 ２Ａ…軸方向端縁 ２Ｂ…円周端縁 ３…折り返し部 ４…断面三角形状の弾性パッキン部材 ５…半割カラー ６…半割の押し輪部材 ６Ａ…ネジ孔 ７…押さえボルト DESCRIPTION OF SYMBOLS 1 ... Half collar joint 2 ... Curved plate curved to cover the outer circumference of the pipe 2A ... Axial end edge 2B ... Circular end edge 3 ... Folding portion 4 ... Elastic packing member with triangular cross section 5 ... Half collar 6 ... Half push wheel member 6A ... Screw hole 7 ... Holding bolt

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 管外周を覆う曲率に湾曲形成された湾曲
板２であって、軸方向端縁２Ａ、２Ａに互いに接合可能
なフランジ部３、３が形成され、円周２Ｂ、２Ｂ及び軸
方向端縁２Ａ、２Ａ内面に沿って断面三角形状の弾性パ
ッキン部材４が一体的に設けられた半割カラー５、５
と、該半割カラー５、５の両円周２Ｂ、２Ｂ端縁外周に
沿って当てがわれ、かつ半割カラー５、５のフランジ部
３、３で共に固定される半割の押し輪部材６、６と、該
押し輪部材６、６の円周方向に沿った適所に径方向に沿
って形成されたネジ孔６Ａ、６Ａにネジ込まれる押さえ
ボルト７…７とからなることを特徴とする半割カラー継
手１。1. A curved plate 2 curved so as to cover the outer circumference of a pipe, wherein flange portions 3, 3 which can be joined to each other are formed at axial end edges 2A, 2A, and a circumference 2B, 2B and a shaft. Half collars 5 and 5 integrally provided with elastic packing members 4 having a triangular cross section along the inner surfaces of the direction edges 2A and 2A.
And a half push ring member which is applied along both outer circumferences 2B and 2B of the half collars 5 and 5 and is fixed together by the flange portions 3 of the half collars 5 and 5. 6, 6 and pressing bolts 7 ... 7 screwed into screw holes 6A, 6A formed along the radial direction at appropriate places along the circumferential direction of the push wheel members 6, 6. Half collar joint 1.