M376672 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種法蘭組，尤指一種用於連接管 體或管路設備接口的局阻漏法蘭結構。 【先前技術】 按，對於具有較大孔徑之管體、筒體或管路設備 接口的連接，通常是使用法蘭（Flanges)，也稱凸 緣接頭，以方便接纟與拆卸。習用法蘭一般係由例如 鐵、不銹鋼等金屬材質製成環狀本體，該環狀本體的 中央有一與所組接之管子端部之外徑尺寸符合的穿 孔’該環狀本體上並具有複數個依預定角度分隔開的 螺孔，且該環狀本體上設有高平整性的内端面。當二 法蘭以内端面對接且在二對接面之間附加軟質的密 封圈，並以螺栓插入相對應的螺孔中鎖固，就能使二 法蘭緊密連接。 1用法蘭藉由内端面的尚平整性加工已能使得 以㈣面相互對接的二法蘭具有良好的密合性因而 在^供大孔役之管體或管路設備接口的連接使用上 =具有防止㉝漏的效果。然而，#法蘭連接的管體或 官路係運送高壓或高溫的流體時，不僅高壓流體會對 法蘭的對接内端面產生剪力衝擊而使二法蘭的密封 界面產生間隙’而且，高溫易使法蘭的對接内端面因 3 =熱膨脹而產生變形，當變形量大時，同樣會使二法 蘭的密封界面產生間隙而導致洩漏。 【新型内容】 本創作人有鑑於此，遂悉 …研咒分析及設 計，於今有本創作之產生。是以，本創作之主要目的 在提供-種高阻漏的法蘭組，該法蘭組係在二法蘭的 對接界面^設有-間隔環及一密封圈，使得該界面遭 到南溫或高壓而形成隙縫時，該間隔環與該密封圈可 將該界面密合’藉以防止該界面產生洩漏者。 依據本貫施例構成之法蘭組係包含可個 別結合在管端的—第―環體及―第二環體，各環體包 含—中央穿孔及-内端面’該二環體之内端面係相對 結合並界定一密封界面，該密封界面包含—環槽；嗜 ，組並包含一間隔環及一密封圈，該間隔魏納： 柄、槽内抵接在該第—環體内端 ，之，該密封圈收納在該環槽内且抵 W之外壤壁上。當該密封界面遭到高溫或高麗而形 成隙縫時’該間隔環會膨脹變形而將該界面密合，且 “封圈能與該第-與第二環體之内端面產生密 合’藉以防止該密封界面產线漏。 在一實施例中，該環槽之斷面概呈L型且包含一 沿著垂直該軸線方向延伸的徑向槽及-沿著：二 M376672 軸:方向延伸的轴向槽;該間隔環 住向部内側;該密封圈包含沿著垂卜槽之 的徑向部及-沿著平行該轴線方向延:的=延伸 徑向部位在該、伸的軸向部，該 槽的轴向槽内的㈣槽内且該轴向部位在該環 該第-環體與第二環體 屬材質製成，而該間隔環心 別由不銹鋼金 膨腸係數大的金屬製成。 純比不錄鋼 一在-較佳實施财，該第—環體之内端面上 圍：部’該凸部係環繞在該第—環: 之内端面上並設有-環狀的第—： 在;第：環繞在該第一環體之穿孔周圍且位 向上具有鄰近該第一環：：:：第一凹部在經 凸部之外周辟^ 周壁與鄰接該 當 α 土 ’5亥外周壁與該第一環體之穿孔隔開— 徑向間距；該第二環體之内端面設有一環狀凸 緣7凸緣係環繞在該第二環體之穿孔周園且與該第 ::衣體之穿孔隔開一與該第一徑向間距約相等的第 二向間距；該第二環體之内端面更設有一環狀凹 ^ 一1凹槽係核繞在該第二環體之穿孔周圍且位在該 山裒體之牙孔與该凸緣之間，使得該第二環體之内 端面與第—環體之内端面相對結合後，該凹槽與該第 5 M376672 一凹部之間形成該斷面概成L狀的環槽。 在另一較佳實施例中’該第二環體之内端面的環 狀凸緣與該凹槽之間的交接面係相對該軸線傾斜一 角度，該密封圈之軸向部的一側係相對該軸線傾斜， 使得該第二環體之内端面的環狀凸緣會互補地與該 密封圈之軸向部内側嵌合。M376672 V. New description: [New technical field] This creation is about a flange group, especially a local leak-proof flange structure for connecting pipes or piping equipment interfaces. [Prior Art] Press, for the connection of the pipe body, cylinder or pipeline equipment with large aperture, flanges (Flanges), also called flange joints, are usually used to facilitate the connection and disassembly. The conventional flange is generally made of a metal material such as iron or stainless steel, and the annular body has a perforation at the center of the annular body at the center of the end of the assembled tube. The screw holes are separated by a predetermined angle, and the annular body is provided with a high flat inner end surface. When the inner flanges of the two flanges are butted together and a soft sealing ring is added between the two mating faces, and the bolts are inserted into the corresponding screw holes, the two flanges can be tightly connected. 1 The use of flanges by the flat end of the inner end surface has been able to make the (four) faces of the two flanges have good adhesion and thus the connection of the pipe or pipe equipment interface for the large hole service = It has the effect of preventing leakage of 33. However, when the flange-connected pipe body or the official road system transports high-pressure or high-temperature fluid, not only the high-pressure fluid will have a shear force impact on the butt inner end surface of the flange, but also cause a gap at the sealing interface of the two flanges. It is easy to make the butt inner end surface of the flange deform due to 3 = thermal expansion. When the deformation amount is large, the sealing interface of the two flanges will also cause a gap and cause leakage. [New content] In view of this, the creator has learned about the analysis and design of the curse. Therefore, the main purpose of this creation is to provide a high-resistance flange group, which is provided at the docking interface of the two flanges - a spacer ring and a sealing ring, so that the interface is subjected to the south temperature When the gap is formed by high pressure, the spacer ring and the sealing ring can close the interface to prevent leakage at the interface. The flange assembly formed according to the present embodiment includes a first ring body and a second ring body which can be individually combined at the pipe end, and each ring body includes a central perforation and an inner end surface. The sealing interface comprises a sealing interface, the sealing interface comprises a ring groove, and the group comprises a spacer ring and a sealing ring. The spacing is in the shank and the groove abuts at the inner end of the first ring. The seal ring is received in the ring groove and is located on the outer wall of the W. When the sealing interface is subjected to high temperature or high temperature to form a slit, the spacer ring expands and deforms to close the interface, and "the sealing ring can be in close contact with the inner end surface of the first and second ring bodies" to prevent The sealing interface line leaks. In an embodiment, the annular groove has an L-shaped cross section and includes a radial groove extending along the axis perpendicular to the axis and - along: two M376672 axes: an axis extending in the direction a groove that surrounds the inner side of the portion; the seal ring includes a radial portion along the groove and a direction extending parallel to the axis: an extended radial portion at the axial portion of the extension a groove in the (4) groove in the axial groove of the groove, and the axial portion is made of the material of the first ring body and the second ring body of the ring, and the spacer ring is made of a metal having a large expansion coefficient of stainless steel Manufactured in the inner end surface of the first ring body: the portion 'the convex portion is surrounded on the inner end surface of the first ring: and is provided with a ring shape The first: around: the circumference around the perforation of the first ring body and in the position up adjacent to the first ring:::: the first recess is The peripheral wall of the convex portion is spaced apart from the perforation of the first ring body by a peripheral wall of the α-a soil, and the radial spacing is provided; the inner end surface of the second ring body is provided with an annular flange 7 flange Surrounding the perforated circumference of the second ring body and spaced apart from the perforation of the first body: a second distance corresponding to the first radial distance; the inner end surface of the second ring body is further An annular recess is formed around the perforation of the second ring body and between the tooth hole of the mountain body and the flange, so that the inner end surface of the second ring body and the first After the inner end faces of the ring body are oppositely combined, the groove forms a ring groove having an L-shaped cross section with the recess of the fifth M376672. In another preferred embodiment, the inner end surface of the second ring body The interface between the annular flange and the groove is inclined at an angle with respect to the axis, and one side of the axial portion of the sealing ring is inclined with respect to the axis such that the inner end surface of the second ring body is annular The flange is complementarily fitted to the inner side of the axial portion of the seal ring.
在另一實施例中，該第一環體之内端面上並設有 -環狀第二凹部’該第二環體之内端面之並設有一第 二凸緣及—第二凹槽，該第二凹槽與該第-環體内端 面之第二凹部相對’使得該第一環體之内端面與第二 環體之内端面相對結合後，在該第二環體之第二凹槽 與3亥第一壤體之第二凹邱夕BB jjy ,, 凹#之間形成另一環槽，在該另 -環槽内收納另一間隔環與另_密封圈。In another embodiment, the inner end surface of the first ring body is provided with an annular second recess. The inner end surface of the second ring body is provided with a second flange and a second recess. The second groove is opposite to the second recess of the inner surface of the first ring body such that the inner end surface of the first ring body and the inner end surface of the second ring body are oppositely combined, and the second groove of the second ring body Another ring groove is formed between the second concave Qiu Xi BB jjy , and the recess #3 of the first soil body of the 3H, and another spacer ring and another sealing ring are accommodated in the other ring groove.
㈣之其他—㈣及特徵’將可由 下較佳實施例的詳細說明並參照所附圖 【實施方式】 鮮 本創作可有多種不同的社 子但非用的—具體實：貫::：將僅為例 本創作之歸結_容㈣轉?讀附圓式就 月參閱第一圖至第四圖’顯示依據本創作杏 =的法蘭組10’其包含-第-環體12、一； " 間隔環16及1封圈18;該第—環體 6 12與该第二環體14係由不銹鋼材質製成，該間隔環 16係由膨脹係數大於不__或料金屬材料製 成該选封圈18係由例如橡谬之彈性材料製成。 °亥第一裱體12包含沿著一軸線2〇方向分隔開的 -内端面22與一外端面24,該第一環體12之中央 處設有沿著該軸線20延伸且貫穿該内端面22與該外 端面24的一穿孔26。在本實施例中，該第—環體12 之外端面24係向外延伸一管狀連接部28，該連接部 28可與一官端30連接；該第一環體12之内端面22 上設有一環狀凸部32,該凸部32係環繞在該穿孔26 周圍，該第一環體12之内端面22上並設有一環狀凹 部34，該凹部34係環繞在該穿孔26周圍且位在該 穿孔26與該凸部32之間，該凹部34在徑向上具有 鄰近穿孔26之内周壁36與鄰接該凸部32之外周壁 38，該外周壁38與該穿孔26隔開一第一徑向間距。 5亥第一環體12上並設有貫穿内端面22與外端面24 的複數結合孔40 ’該複數結合孔40係鄰近該第一環 體12的外周圍42且呈環狀地分隔開。 該第二環體14包含沿著該軸線20方向分隔開的 一内端面44與一外端面46 ’該第二環體14之中央 處設有沿著該軸線20延伸且貫穿該内端面44與該外 端面46的一穿孔48。在本實施例中，該第二環體14 之外端面46係向外延伸一管狀連接部5〇,該連接部 5〇可與另—管端52連接；該第二環體14之内端面 與該第-環體12之内端面22相對結合並形成 一密封界面53 ;當該二内端面22、44相對結合後， 該第二環體14的穿孔48會與第一環體12的穿孔26 j通㈣成一流體通道。該第二環體14之内端面44 η又有m緣54 ’該凸緣54係環繞在該穿孔48 周圍且與該？孔48隔開—與該第—徑㈣距約相等 的第二徑向間距;該第二環體14之内端面Μ更設有 一環狀凹槽55’該凹槽55係環繞在該穿孔48周圍 且位在該穿孔4 8與該凸緣5 4之間，使得該第一與第 二環體12、14之内端面22、44相對結合後，該凹槽 55與該凹部34會形成斷面概成L狀的環槽％，該環 槽56包含沿著垂直該軸線方向延伸的徑向槽（未標 號）及沿著平行該軸、線方向延伸的一軸向槽（未標 號）。該第二環體14上並設有貫穿内端面44與外端 面46的複數結合孔58，該複數結合孔58係鄰近該 第二環體14的外周圍60且呈環狀地分隔開。當該第 二環體14之内端面44係與該第一環體12之内端面 22相對結合後，結合孔4〇與結合孔58對準，利用 螺栓62穿過結合孔40、58且與螺帽64結合鎖合， 使传該二環體12、14鎖固在一起。 該間隔環16係收納在該環槽56内側且位在該第 ::體内端面22與該第二環體内端面44之間，該間 3 之内％壁係抵接該凹部34之内周壁36且該 間隔環16具有一外環壁I該密封圈18係收納在 該=槽56内且抵接在該間隔環16之外環壁65上； -亥-封圈18之斷面概成L狀且包含沿著垂直該軸線 方向延伸的徑向部68及—沿著平行該轴線方向延伸 的軸向。P 66，该密封圈18的徑向部⑽密合地位在 ㈣槽56的徑向槽内且該軸向部66係密合地位在該 %>槽56的轴向槽内。 依據本創作形成之法蘭接頭10在提供連接管體 或管路設備接口的實施上，係藉由第一環體12之内 端面22與该第二環體14之内端面44具有高平整 性，使仔由該二内端面22、44結合而成的密封界面 53具有咼密合性以防止管體内的流體由該界面洩 漏。再者，當該法蘭結構1〇連接的管體係運送高壓 或高溫的流體時，該界面53可能在承受高壓剪力衝 擊或是高溫熱膨脹而產生隙縫，造成管體内的流體從 界面53洩漏而進入環槽56内。當高溫流體進入環槽 56内時，由於該間隔環16係由膨脹係數較大的金屬 材料製成，所以，間隔環丨6亦會產生膨脹變形而與 该界面53產生密合以防止流體從該環槽56外洩。另 M376672 -方面，當該密封圈18受壓時，該密封圈i8的徑向 部68與軸向部66會與崎㈣抵接以形成緊密姑 合’因而能防止該密封界面53產生汽漏。再者，由 於該密封圈18係形成轉折之L型的斷面，所以與第 一環體12之内端面22及該第，14之内端面44 係形成兩個方向（軸向與徑向）的對接，能提高介面 53的密合性。(d) Others - (four) and features 'will be explained in detail by the following preferred embodiments and with reference to the accompanying drawings. [Embodiment] Fresh creations can have many different social groups but are not used - concrete: consistent::: For example, the conclusion of this creation is _容(四)转? Read the rounded form, see the first figure to the fourth figure, 'Showing the flange group 10' according to the creation of the apricot = it contains the --ring body 12, one; " spacer ring 16 and 1 ring 18; the first ring body 6 12 and the second ring body 14 are made of stainless steel material, and the spacer ring 16 is made of a material having a coefficient of expansion greater than that of the metal material. The seal ring 18 is made of an elastic material such as a rubber. The first body 12 includes a inner end surface 22 and an outer end surface 24 which are spaced apart along an axis of the axis. The center of the first ring body 12 is disposed along the axis 20 and extends therethrough. A perforation 26 of the end surface 22 and the outer end surface 24. In this embodiment, the outer end surface 24 of the first ring body 12 extends outwardly from a tubular connecting portion 28, and the connecting portion 28 can be connected to a central end 30; the inner end surface 22 of the first ring body 12 is disposed There is an annular convex portion 32 around the perforation 26, and an inner annular end surface 22 of the first annular body 12 is provided with an annular recess 34 around which the recessed portion 34 is located. Between the through hole 26 and the convex portion 32, the concave portion 34 has a peripheral wall 36 adjacent to the through hole 26 in the radial direction and an outer peripheral wall 38 adjacent to the convex portion 32. The outer peripheral wall 38 is spaced apart from the through hole 26 by a first Radial spacing. 5H first ring body 12 is provided with a plurality of coupling holes 40' extending through the inner end surface 22 and the outer end surface 24. The plurality of coupling holes 40 are adjacent to the outer circumference 42 of the first ring body 12 and are annularly spaced apart. . The second ring body 14 includes an inner end surface 44 and an outer end surface 46 ′ separated along the axis 20 . The central portion of the second ring body 14 is disposed along the axis 20 and extends through the inner end surface 44 . A perforation 48 is formed with the outer end surface 46. In this embodiment, the outer end surface 46 of the second ring body 14 extends outwardly from a tubular connecting portion 5〇, and the connecting portion 5〇 can be connected to the other tube end 52; the inner end surface of the second ring body 14 The inner end surface 22 of the first ring body 12 is oppositely coupled to form a sealing interface 53. When the two inner end surfaces 22, 44 are oppositely coupled, the through hole 48 of the second ring body 14 and the first ring body 12 are perforated. 26 j pass (four) into a fluid channel. The inner end face 44n of the second ring body 14 has a m-edge 54'. The flange 54 is wrapped around the perforation 48 and is there? The holes 48 are spaced apart from each other by a second radial distance equal to the first diameter (four); the inner end surface of the second ring body 14 is further provided with an annular groove 55' around which the groove 55 is wound. The groove 55 and the recess 34 are formed after being disposed between the through hole 48 and the flange 5 4 such that the inner end faces 22 and 44 of the first and second ring bodies 12 and 14 are oppositely coupled. The surface is formed into an L-shaped annular groove %, and the annular groove 56 includes a radial groove (not labeled) extending in the direction perpendicular to the axial direction and an axial groove (not labeled) extending in a line direction parallel to the axis. The second ring body 14 is provided with a plurality of coupling holes 58 extending through the inner end surface 44 and the outer end surface 46. The plurality of coupling holes 58 are adjacent to the outer periphery 60 of the second ring body 14 and are annularly spaced apart. When the inner end surface 44 of the second ring body 14 is oppositely coupled to the inner end surface 22 of the first ring body 12, the coupling hole 4 is aligned with the coupling hole 58 and passes through the coupling holes 40, 58 with the bolt 62 and The nut 64 is combined with the lock to lock the two ring bodies 12, 14 together. The spacer ring 16 is received inside the annular groove 56 and is located between the inner surface end surface 22 and the second inner ring end surface 44. The inner wall of the space 3 abuts the concave portion 34. The peripheral wall 36 and the spacer ring 16 have an outer ring wall I. The sealing ring 18 is received in the groove 56 and abuts against the annular wall 65 of the spacer ring 16; It is L-shaped and includes a radial portion 68 extending in a direction perpendicular to the axial direction and an axial direction extending in a direction parallel to the axial direction. P 66, the radial portion (10) of the seal ring 18 is in close contact with the radial groove of the (four) groove 56 and the axial portion 66 is in close contact with the axial groove of the %> groove 56. The flange joint 10 formed according to the present invention has high flatness by the inner end surface 22 of the first ring body 12 and the inner end surface 44 of the second ring body 14 in the implementation of the connection of the connecting pipe body or the piping device. The sealing interface 53 formed by combining the two inner end faces 22, 44 has a tamping adhesion to prevent fluid in the pipe body from leaking from the interface. Furthermore, when the flange system connected to the flange structure carries a high-pressure or high-temperature fluid, the interface 53 may be subjected to a high-pressure shear impact or a high-temperature thermal expansion to create a gap, causing the fluid in the tube to leak from the interface 53. It enters the ring groove 56. When the high temperature fluid enters the annular groove 56, since the spacer ring 16 is made of a metal material having a large expansion coefficient, the spacer ring 6 also undergoes expansion deformation to be in close contact with the interface 53 to prevent fluid from coming out. The ring groove 56 is leaked. In addition, in the aspect of M376672, when the sealing ring 18 is pressed, the radial portion 68 and the axial portion 66 of the sealing ring i8 abut against the sacrificial (four) to form a close fit, thereby preventing the sealing interface 53 from generating a steam leak. . Furthermore, since the seal ring 18 forms a folded L-shaped cross section, it forms two directions (axial and radial directions) with the inner end surface 22 of the first ring body 12 and the inner end surface 44 of the first and fourth ends 14 . The docking can improve the adhesion of the interface 53.
參閱第五圖及第六圖’顯示依據本創作第二實施 例構成的法蘭組10，在這實施例中，關於和第二實 施例說明者相同或同等之構件，將附上同一標號，而 省略其細部結構說明；其與第一實施例之差異在於該 第衣體14之内知面44的環狀凸緣54與凹槽55之 間的交接面70係相對該軸線2〇傾斜一角度，且該密 封圈18之軸向部66的一側亦相對該軸線2〇傾斜一 相同角度，使得第二環體14之凸緣54會互補地與該 达封圈18之轴向部6 6巍合，以便該法蘭组1 〇之二 體12、14的組裝。 參閱第七圖及第八圖，顯示依據本創作第三實施 例構成的法蘭組1 〇，在這實施例中，關於和第一實 施例說明者相同或同等之構件，將附上同一標號，而 省略其細部結構說明；其與第一實施例之差異在於該 第一環體12之内端面22上設有二分隔開的環狀凹部 10 以’且遠第二環體14之内端面44上設有二對應的凸 4與凹槽55，使得該第一與第二環體14之 p k面22 44相對結合後會形成二斷面概成L狀的 衣軋56，在各環槽56内收納一間隔環16與一密封 圈丨8，使得該法蘭組1〇的阻漏效果能更加提高。 、,、在則述說明書中，本創作僅是就特定實施例做描 述，而依本創作的設計特徵是可做多種變化或修改， 對於熟悉此項技藝人士可作之明顯替換與修飾，仍將 併入於本創作所主張的專利範圍之内。 【圖式簡單說明】 第—圖係依據本創作第一實施例構成的法蘭組的元 件分解圖。 第二圖係第一圖之法蘭組的局部剖斷圖。 第一圖係第一圖之法蘭組的剖視圖，並顯示該法蘭接 頭結合於二管端之間。 第四圖係第三圖之圈取部份的放大圖。 第五圖係依據本創作第二實施例構成之法蘭組的一 橫向剖視圖。 第六圖係第五圖之圈取部份的放大圖。 第七圖係依據本創作第三實施例構成之法蘭組的一 橫向剖視圖。 第八圖係第七圖之圈取部份的放大圖。 M376672Referring to the fifth and sixth figures, the flange assembly 10 constructed in accordance with the second embodiment of the present invention is shown. In this embodiment, the same or equivalent components as those described in the second embodiment will be given the same reference numerals. The detailed description of the structure is omitted; the difference from the first embodiment is that the interface 70 between the annular flange 54 and the recess 55 of the inner surface 44 of the first garment body 14 is inclined with respect to the axis 2 An angle, and one side of the axial portion 66 of the seal ring 18 is also inclined at the same angle with respect to the axis 2〇 such that the flange 54 of the second ring body 14 complementarily complements the axial portion 6 of the seal ring 18 6 , ,, so that the assembly of the flange group 1 12 2 body 12, 14. Referring to the seventh and eighth figures, the flange group 1 构成 constructed in accordance with the third embodiment of the present invention is shown. In this embodiment, the same or equivalent components as those described in the first embodiment will be given the same reference numerals. The detailed description of the structure is omitted; the difference from the first embodiment is that the inner end surface 22 of the first ring body 12 is provided with two spaced apart annular recesses 10 to be 'and the inner end surface of the second second ring body 14 44 is provided with two corresponding protrusions 4 and grooves 55, so that the pk faces 22 44 of the first and second ring bodies 14 are oppositely combined to form a two-section L-shaped garment roll 56, in each ring groove A spacer ring 16 and a sealing ring 8 are accommodated in the 56, so that the leakage preventing effect of the flange group 1〇 can be further improved. In the description, the present invention is only described for a specific embodiment, and the design features according to the present invention can be variously changed or modified, and can be obviously replaced and modified by those skilled in the art. It will be incorporated within the scope of the patent claimed by this creation. BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is an exploded view of the element of the flange group constructed in accordance with the first embodiment of the present invention. The second figure is a partial cutaway view of the flange set of the first figure. The first figure is a cross-sectional view of the flange set of the first figure and shows that the flange joint is coupled between the two tube ends. The fourth figure is an enlarged view of the circled portion of the third figure. Figure 5 is a transverse cross-sectional view of a flange set constructed in accordance with a second embodiment of the present invention. The sixth drawing is an enlarged view of the circled portion of the fifth figure. The seventh drawing is a transverse cross-sectional view of the flange group constructed in accordance with the third embodiment of the present creation. The eighth figure is an enlarged view of the circled portion of the seventh figure. M376672
【主要元件符號說明】 10.法蘭組 12.第一環體 14.第二環體 16.間隔環 18.密封圈 20.軸線 22.内端面 24.外端面 26.穿孔 28.連接部 30.管子 32.凸部 34.凹部 36.内周壁 38.外周壁 40.結合孔 42.外周圍 44.内端面 46.外端面 48.穿孔 50.連接部 52.管端 53.界面 54.凸緣 5 5.凹槽 56.環槽 58.結合孔 60.外周圍 62.螺栓 64.螺帽 6 5.外環壁 6 6.軸向部 68.徑向部 70.交接面 12[Main component symbol description] 10. Flange group 12. First ring body 14. Second ring body 16. Spacer ring 18. Seal ring 20. Axis 22. Inner end surface 24. Outer end surface 26. Perforation 28. Connection portion 30 Tube 32. convex portion 34. concave portion 36. inner peripheral wall 38. outer peripheral wall 40. joint hole 42. outer circumference 44. inner end surface 46. outer end surface 48. perforation 50. connection portion 52. tube end 53. interface 54. Edge 5 5. Groove 56. Ring groove 58. Bonding hole 60. Outer circumference 62. Bolt 64. Nut 6 5. Outer ring wall 6 6. Axial portion 68. Radial portion 70.