JPH11173474A - Sealing structure for pipe and case - Google Patents

Sealing structure for pipe and case

Info

Publication number
JPH11173474A
JPH11173474A JP9362831A JP36283197A JPH11173474A JP H11173474 A JPH11173474 A JP H11173474A JP 9362831 A JP9362831 A JP 9362831A JP 36283197 A JP36283197 A JP 36283197A JP H11173474 A JPH11173474 A JP H11173474A
Authority
JP
Japan
Prior art keywords
shaped packing
case
pipe
arc
flange
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.)
Pending
Application number
JP9362831A
Other languages
Japanese (ja)
Inventor
Ryoichi Ishida
良一 石田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cosmo Koki Co Ltd
Original Assignee
Cosmo Koki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cosmo Koki Co Ltd filed Critical Cosmo Koki Co Ltd
Priority to JP9362831A priority Critical patent/JPH11173474A/en
Publication of JPH11173474A publication Critical patent/JPH11173474A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00Protection of pipes or objects of similar shape against external or internal damage or wear

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Sleeves (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a sealing structure capable of preventing water from leaking even if a fluid pipe and a case are deformed. SOLUTION: Even when a water supply main pipe and a cover are deformed due to earth pressure, and even when the cover split by earth pressure is deformed so as to allow its flange surface to be separated, since fastening force is given by a flange in such a way that the end part of a circular arc shaped packing 4a is brought into contact with the abutting surface at the end part of the circular arc shaped packing in order from the side of a fluid pipe, the tip end of the abutting part of the circular arc shaped packing is strongly deformed in compression in such a way as to be projected to the flange pipe side, and pressure contacting force against the outer circumferential surface of the water supply main pipe is raised up, so that there in no fear of water leaking. Besides, a first and a second joining part 4c and 4d having plain surface parts 4e and 4e which abut against the opposite circular arc shaped packing 4a, are provided for both the end parts of the circular arc shaped packing 4a. When the plain parts 4e and 4e of the first and second joining parts 4c and 4d abut against each other, the fluid pipe side comes in contact therewith, and the plain parts are thereby formed into an angle in such a way that a distance is opened at their outer circumferential portions.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、複数に分割された
ケースを流体管に円弧状パッキンで水密に被覆する管と
ケースのシール構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe and case sealing structure for covering a fluid pipe in a watertight manner with a circular pipe in a plurality of divided cases.

【0002】[0002]

【従来の技術】破損して漏水している水道本管を補修す
る場合に使用される補修カバーや、埋設されている水道
本管に分岐管を接続する場合に使用される割T字管は、
水道本管の周囲を被覆する複数に分割されたケースと、
該ケースを流体管に水密に設置する複数の円弧状パッキ
ンとから構成されるのが一般的である。水道本管継手部
の補修部材として、図8および図9に示すようなシール
用カバーが知られている。
2. Description of the Related Art A repair cover used for repairing a damaged water leaking water main or a split T-shaped pipe used for connecting a branch pipe to a buried water main is known. ,
A case divided into a plurality covering the periphery of the water main,
In general, the case comprises a plurality of arc-shaped packings which are installed in a fluid pipe in a watertight manner. As a repair member for a water main joint, a seal cover as shown in FIGS. 8 and 9 is known.

【0003】この従来のシール用カバーAは、ボルト孔
C1を形成したフランジCが設けてある二つのケース
B、Bとその内面に形成されたパッキン溝Eに装着され
るシール材D、Dとからなる。シール材Dは、水道本管
Gの外周面に圧接する円弧状シール部D1と、接続され
る相手のフランジCのシール部D2に圧接するシール部
D2とが一体に成形されている。シール材Dの円弧状シ
ール部C1のうち周方向両端から所定の角度範囲の外周
面部はテーパ面D3に形成され、このテーパ面に対応す
るパッキン溝Eにはテーパ面E1が形成されている。
This conventional sealing cover A is composed of two cases B, B provided with a flange C formed with a bolt hole C1 and sealing materials D, D mounted in packing grooves E formed in the inner surface thereof. Consists of In the seal member D, an arc-shaped seal portion D1 that presses against the outer peripheral surface of the water main pipe G and a seal portion D2 that presses against the seal portion D2 of the mating flange C to be connected are integrally formed. The outer peripheral surface of the arc-shaped seal portion C1 of the seal material D within a predetermined angle range from both ends in the circumferential direction is formed as a tapered surface D3, and the packing groove E corresponding to the tapered surface is formed with a tapered surface E1.

【0004】前記シール材Dを装着したケースB、Bを
水道本管Gに被覆し、対向フランジC、Cをボルト・ナ
ットFによって締め付けると、円弧状シール部D1は水
道本管Gの外周面に圧接し、シール部D2は、互いに圧
接することにより、シール用カバーAは水密性を保持し
て水道本管Gに装着される。このとき、円弧状シール部
D1、D1の対向する周方向両端部は、テーパ面E1に
よりボルト・ナットFによる締め付け力の方向が変換さ
れ管中心方向の力が働き、水道本管Gの外周面に対する
圧接力が高まる。
When the water main pipe G is covered with the cases B and B on which the sealing material D is mounted, and the opposed flanges C and C are tightened with bolts and nuts F, the arc-shaped seal portion D1 becomes an outer peripheral surface of the water main pipe G. And the seal portions D2 are pressed against each other, so that the sealing cover A is attached to the water main pipe G while maintaining watertightness. At this time, the direction of the tightening force by the bolt and nut F is changed by the tapered surface E1 at the opposite circumferential end portions of the arc-shaped seal portions D1 and D1, and the force in the center direction of the pipe acts, and the outer circumferential surface of the water main pipe G The press contact force against is increased.

【0005】このように従来のシール用カバーにおいて
も円弧状パッキンの突き合わせ部の管外周方向への圧接
力が高まる工夫がなされていた。しかし、締め付け力の
一部を方向変換して管方向への圧接力としているのでそ
の力は小さく、埋設されている水道本管に分割されたカ
バーを取り付けた場合、土圧によって水道本管やカバー
が変形したときや、水圧により分割されたカバーが変形
しフランジ面が離れたときなどに円弧状パッキンの突き
合わせ部と水道本管の接触部より漏水するという問題が
あった。
As described above, even in the conventional sealing cover, a device has been devised to increase the pressure contact force of the butted portion of the arc-shaped packing in the outer circumferential direction of the pipe. However, since a part of the tightening force is changed in direction and used as a pressure contact force in the pipe direction, the force is small, and when a divided cover is attached to the buried water main, the water main When the cover is deformed, or when the cover divided by water pressure is deformed and the flange surface is separated, there is a problem that water leaks from the contact portion between the butted portion of the arc-shaped packing and the water main pipe.

【0006】[0006]

【発明が解決しようとする課題】本発明が解決しようと
する課題は、上記問題を解決するためになされたもの
で、流体管やケースが変形しても漏水を防止しうるよう
にした管とケースのシール構造を提供する点にある。
The problem to be solved by the present invention has been made to solve the above-mentioned problem, and it is an object of the present invention to provide a pipe capable of preventing water leakage even if a fluid pipe or a case is deformed. Another object of the present invention is to provide a case sealing structure.

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
に、本発明の管とケースのシール構造は、流体管の周囲
を被覆する複数に分割されたケースと、該ケースを流体
管に水密に設置する複数の円弧状パッキンとからなり、
前記ケースがそれぞれのケースを連結するためのフラン
ジを備え、前記円弧状パッキンの端部を突き合わせてケ
ースと流体管を水密に接続する管とケースのシール構造
であって、前記円弧状パッキンの端部が、円弧状パッキ
ンの端部を突き合わせたときに、流体管側である内側端
部から順に接触する形状に形成されていることを特徴と
している。
In order to solve the above-mentioned problems, a pipe and case sealing structure according to the present invention comprises a plurality of divided cases covering the periphery of a fluid pipe, and the case being watertight to the fluid pipe. Consisting of multiple arc-shaped packings installed on the
A pipe-and-case sealing structure for connecting the case and the fluid pipe in a watertight manner by abutting the ends of the arc-shaped packing with the case having a flange for connecting the respective cases, wherein the end of the arc-shaped packing is When the ends of the arc-shaped packing are abutted against each other, the portions are formed so as to come into contact in order from the inner end which is the fluid pipe side.

【0008】上記円弧状パッキンは、円弧状パッキンの
端部の外周に形成され、フランジにより圧接力を加える
ための接合部が形成され、さらにフランジ対向面には前
記接合部を収容する凹部が形成されているのが好まし
い。
The above-mentioned arc-shaped packing is formed on the outer periphery of an end of the arc-shaped packing, a joint for applying a pressing force is formed by a flange, and a recess for accommodating the joint is formed on a surface facing the flange. It is preferred that

【0009】上記円弧状パッキンは、円弧状パッキンの
接合部近傍が、肉厚に形成されているのが好ましい。
[0009] It is preferable that the arc-shaped packing is formed so as to be thick near the joint of the arc-shaped packing.

【0010】上記円弧状パッキンは、フランジ同士を水
密に接続する棒状パッキンが一対の接合部を連絡して一
体に形成されているのが好ましい。
[0010] In the arc-shaped packing, it is preferable that a rod-shaped packing for connecting the flanges to each other in a water-tight manner is formed integrally by connecting a pair of joints.

【0011】本発明によると、土圧によって水道本管や
カバーが変形したときや、水圧により分割されたカバー
が変形しフランジ面が離れたときなどにおいても、円弧
状パッキンの端部の突き合わせ面において、円弧状パッ
キンの端部が流体管側から順に接触するようにフランジ
により締め付け力を与えられているため、円弧状パッキ
ンの突き合わせ部先端が流体管側に突出する形で強力に
圧縮変形することになり、水道本管外周面に対する圧接
力が高まり、漏水の恐れがなくなる。
According to the present invention, even when the water main pipe or the cover is deformed by the earth pressure, or when the cover divided by the water pressure is deformed and the flange surface is separated, the end face of the arc-shaped packing is abutted. In the above, the clamping force is given by the flange so that the ends of the arc-shaped packing come into contact in order from the fluid pipe side, so that the tip of the butted portion of the arc-shaped packing is strongly compressed and deformed in a form protruding toward the fluid pipe side. As a result, the pressure contact force on the outer peripheral surface of the water main is increased, and the possibility of water leakage is eliminated.

【0012】[0012]

【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0013】図1ないし図5は、本発明の第1実施例を
示すもので、水道本管の漏水の補修に使用される補修ケ
ースに適用したものである。地中に埋設された水道本管
(流体管)1の外周面に、ケース2が水密性を保持して
装着されている。ケース2は、径方向に2分割可能な第
1ケース2aと第2ケース2bとからなり、第1ケース
2aには、漏洩している水をケース2の外に排水するた
めの排水口2cが設けられている。
FIGS. 1 to 5 show a first embodiment of the present invention, which is applied to a repair case used for repairing water leakage of a water main. A case 2 is attached to the outer peripheral surface of a water main pipe (fluid pipe) 1 buried underground while maintaining watertightness. The case 2 includes a first case 2a and a second case 2b that can be divided into two parts in the radial direction. The first case 2a has a drain port 2c for draining leaking water out of the case 2. Is provided.

【0014】ケース2の長手方向の対向端縁両側には、
フランジ3が外向きに連設され、各フランジ3には4個
ずつの貫通孔3aが上下に整合するように形成されてい
る。
On both sides of the case 2 in the longitudinal direction facing edges,
Flanges 3 are connected outwardly, and four through holes 3a are formed in each flange 3 so as to be aligned vertically.

【0015】また、各ケース2a,2bには、その管軸
方向両端部に第1パッキン溝5が形成され、フランジ3
の一方には第2パッキン溝6が形成されていて、パッキ
ン4が取り付けられている。第1パッキン溝5の両端部
でフランジ3の対向面には、後述するパッキン4の第1
接合部(接合部)4c、第2接合部(接合部)4dが管
軸方向に移動しないように嵌合される収容凹部(凹部)
7が形成されている。
Each of the cases 2a and 2b has a first packing groove 5 formed at both ends in the pipe axis direction.
The second packing groove 6 is formed in one of the two, and the packing 4 is attached. At both ends of the first packing groove 5, the first surface of the packing 4, which will be described later,
Housing recess (recess) fitted so that the joint (joint) 4c and the second joint (joint) 4d do not move in the tube axis direction.
7 are formed.

【0016】パッキン4は、水道本管1とケース2をシ
ールする円弧状パッキン4aと、フランジ同士をシール
する棒状パッキン4bにより形成されている。なお、パ
ッキン4は、第1ケース2aと第2ケース2bにおいて
対称形をしており、フランジ3を止水する棒状パッキン
4bは一方のみとしてある。
The packing 4 is formed of an arc-shaped packing 4a for sealing the water main 1 and the case 2, and a rod-shaped packing 4b for sealing the flanges. The packing 4 has a symmetrical shape in the first case 2a and the second case 2b, and only one bar-shaped packing 4b for stopping the water of the flange 3 is provided.

【0017】円弧状パッキン4aの両端部には、対向す
る円弧状パッキン4aに当接する平面部4e、4eを有
する第1接合部4cと第2接合部4dが設けられてい
る。第1接合部4cと第2接合部4dの平面部4e、4
eは、図5(a)に示すように突き合わせたときに流体
管側が接触し、外周部分では距離が開くように角度をも
って形成されている。第1接合部4cには、左右の円弧
状パッキン4aを連絡する棒状パッキン4bが連設して
ある。また、第1接合部4cと第2接合部4dの近傍
は、外径方向と管軸方向内側に肉厚に形成されている。
At both ends of the arc-shaped packing 4a, there are provided a first joint 4c and a second joint 4d having flat portions 4e, 4e abutting on the opposing arc-shaped packing 4a. The flat portions 4e and 4 of the first joint 4c and the second joint 4d
As shown in FIG. 5 (a), e is formed at an angle so that the fluid pipe side comes into contact when butted, and the distance is increased in the outer peripheral portion. A rod-shaped packing 4b connecting the left and right arc-shaped packings 4a is connected to the first joint 4c. Further, the vicinity of the first joint portion 4c and the second joint portion 4d is formed thick in the outer diameter direction and the inner side in the tube axis direction.

【0018】水道本管1にパッキン4を装着したケース
2を被覆し、ボルト・ナット8を貫通孔3aに挿通して
締め付けと、円弧状パッキン4aが水道本管1の外周面
に圧接し、かつ一方のフランジ3の棒状パッキン4bが
他方のフランジの平坦面に圧接することにより、ケース
2により囲まれた空間の水密性が確保される。
When the case 2 in which the packing 4 is attached to the water main 1 is covered and the bolts and nuts 8 are inserted into the through holes 3a and tightened, the arc-shaped packing 4a is pressed against the outer peripheral surface of the water main 1, The rod-shaped packing 4b of one flange 3 is pressed against the flat surface of the other flange, so that the space surrounded by the case 2 is kept watertight.

【0019】図5(a)、(b)、(c)は円弧状パッ
キンの端部の突き合わせ時の説明図であり、図に示すよ
うに、第1接合部4cと第2接合部4dとを突き合わせ
て圧接すると、円弧状パッキンの端部は流体管側から接
触し流体管方向に押し出されるように突出した変形を起
こす。よって管外周面に対する圧接力が高まり、管の変
形やケースの変形に対応できる圧接力が得られる。
FIGS. 5 (a), 5 (b), and 5 (c) are explanatory views when the ends of the arc-shaped packing are abutted. As shown in the figure, the first joint 4c and the second joint 4d are connected to each other. When they are pressed against each other, the ends of the arc-shaped packing are deformed so as to come into contact with the fluid pipe side and protrude toward the fluid pipe. Therefore, the pressing force against the outer peripheral surface of the tube is increased, and the pressing force that can cope with the deformation of the tube and the case is obtained.

【0020】第1接合部4cと第2接合部4dが、円弧
状パッキン4aの外周に突出して設けられて、これら接
合部4c、4dがフランジ3の対向面に形成された収容
凹部7に嵌合されているため、第1接合部4cと第2接
合部4dの突き合わせの方向とフランジを締め付ける方
向とが一致し、かつ、圧接されたときに管軸方向に逃げ
ることがないので締付力が有効に働き、平面部4e、4
eにおける止水性が向上する。さらに、第1接合部4c
と第2接合部4dの近傍は、肉厚に形成しパッキンのボ
リームを増しているため、管の変形やケースの変形に対
応できる圧接力が得られる。なお、図5では、円弧状パ
ッキンのみを示し、水道本管1、フランジ3、ボルト・
ナット8の図示を省略している。
A first joint 4c and a second joint 4d are provided so as to protrude from the outer periphery of the arc-shaped packing 4a, and these joints 4c and 4d are fitted into the housing recess 7 formed on the facing surface of the flange 3. Since the first joining portion 4c and the second joining portion 4d are in contact with each other, the direction in which the flanges are fastened matches the direction in which the flanges are tightened, and the flanges do not escape in the tube axis direction when pressed against each other. Works effectively, and the plane portions 4e, 4e
e) the water stoppage is improved. Further, the first joint 4c
The thickness of the packing and the vicinity of the second joining portion 4d are increased to increase the packing volume, so that a pressure contact force that can cope with the deformation of the pipe or the case can be obtained. In FIG. 5, only the arc-shaped packing is shown, and the water main 1, the flange 3, the bolts
The illustration of the nut 8 is omitted.

【0021】棒状パッキン4bが第1接合部4cに取り
付けられているので、円弧状パッキン4aと棒状パッキ
ン4bの圧縮による変形が互いに影響を及ぼさないので
水密性が向上する。
Since the rod-shaped packing 4b is attached to the first joint portion 4c, the deformation of the arc-shaped packing 4a and the rod-shaped packing 4b due to compression does not affect each other, so that the watertightness is improved.

【0022】図6は、本発明の第2実施例を示すもので
ある。(a)は、第2接合部4dの平面部4eの流体管
側に突出部を設けたもので、(b)は、第1接合部4cと
第2接合部4dのそれぞれの平面部4e、4eの流体管
側に突出部を設けたものである。なお、円弧状パッキン
のみを示し、水道本管1、フランジ3、ボルト・ナット
8の図示を省略している。
FIG. 6 shows a second embodiment of the present invention. (A) is provided with a protruding portion on the fluid pipe side of the flat portion 4e of the second connecting portion 4d, and (b) is provided with a flat portion 4e of each of the first connecting portion 4c and the second connecting portion 4d. A projection is provided on the fluid pipe side of 4e. In addition, only the arc-shaped packing is shown, and illustration of the water main 1, the flange 3, and the bolts and nuts 8 is omitted.

【0023】第1接合部4cと第2接合部4dが突き合
わされて圧接されたときに、平面部4eの流体管側に設
けた突出部が流体管側に突出変形するので管外周面に対
して圧接力が増し、管の変形やケースの変形に対しても
漏水を防止できる。
When the first joint portion 4c and the second joint portion 4d are abutted and pressed against each other, the protrusion provided on the fluid pipe side of the flat portion 4e is protruded and deformed toward the fluid pipe, so that the flat portion 4e is deformed toward the fluid pipe side. As a result, the pressure contact force is increased, and water leakage can be prevented even when the pipe or the case is deformed.

【0024】図7は、本発明の第3実施例を示すもの
で、第1接合部4cの平面部4eの流体管側を斜めにカ
ットし、第2接合部4dの平面部4eの流体管側に突出
部を設けたものである。なお、円弧状パッキンのみを示
し、水道本管1、フランジ3、ボルト・ナット8の図示
を省略している。
FIG. 7 shows a third embodiment of the present invention. The fluid pipe side of the flat part 4e of the first joint 4c is cut obliquely, and the fluid pipe of the flat part 4e of the second joint 4d is cut. A projection is provided on the side. In addition, only the arc-shaped packing is shown, and illustration of the water main 1, the flange 3, and the bolts and nuts 8 is omitted.

【0025】第1接合部4cと第2接合部4dが突き合
わされて圧接されたときに、前記第2接合部4dの突出
部に第1接合部4cのカット部分が接触し、流体管外周
面への圧縮の方向と 第1接合部4cと第2接合部4d
のパッキン端面の圧縮の方向が一致するので止水性が向
上する。
When the first joint 4c and the second joint 4d are abutted against each other and pressed against each other, the cut portion of the first joint 4c comes into contact with the protrusion of the second joint 4d, and the outer peripheral surface of the fluid pipe is formed. Direction of compression to the first joint 4c and second joint 4d
Since the direction of compression of the packing end faces is the same, the waterproofness is improved.

【0026】本発明は、上記実施例に限定されるもので
はない。
The present invention is not limited to the above embodiment.

【0027】実施例では、補修ケースに使用したものを
示したが、不断水で分岐管を接続する場合に流体管に被
覆する割T字管に使用してもよく、不断水でバルブを設
置する場合に流体管に被覆するケースに使用してもよ
い。
In the embodiment, the one used for the repair case is shown. However, when the branch pipe is connected with unrestricted water, it may be used for a split T-shaped pipe which covers the fluid pipe. In such a case, it may be used for a case that covers the fluid pipe.

【0028】実施例では、第1接合部4cと第2接合部
4dの当接面を平面部4e、4eとしたが、契合できる
凹凸状にしてもよい。
In the embodiment, the contact surfaces of the first joint portion 4c and the second joint portion 4d are the flat portions 4e, 4e.

【0029】[0029]

【発明の効果】本発明によれば、流体管の変形や、ケー
スの変形に対して、追従性の高いシールが達成されてい
るためケースからの漏水を確実に防止できる。
According to the present invention, since a seal having a high followability to the deformation of the fluid pipe and the deformation of the case is achieved, water leakage from the case can be reliably prevented.

【0030】請求項2の発明によれば、接合部の逸出を
防ぎながらパッキンに圧接力が加わるため、フランジの
締付力が有効に働き、突き合わせ面の止水性が向上す
る。
According to the second aspect of the present invention, since the pressing force is applied to the packing while preventing the joint from escaping, the tightening force of the flange works effectively, and the water stoppage of the butted surface is improved.

【0031】請求項3の発明によれば、円弧状パッキン
による流体管やケースの変形に対する許容量が増加し、
より追従性の高いシールが可能となる。
According to the third aspect of the present invention, the allowable amount of deformation of the fluid pipe and the case due to the arc-shaped packing increases,
A seal with higher followability can be obtained.

【0032】請求項4の発明によれば、円弧状パッキン
と棒状パッキンの変形の影響が互いに及ばないのでケー
スの止水性が向上する。
According to the fourth aspect of the present invention, the effects of deformation of the arc-shaped packing and the rod-shaped packing do not affect each other, so that the water stopping property of the case is improved.

【0033】[0033]

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

【図1】本発明の第1実施例を示す一部切欠正面図であ
る。
FIG. 1 is a partially cutaway front view showing a first embodiment of the present invention.

【図2】図1のII―II線に沿う断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.

【図3】パッキンの正面図である。FIG. 3 is a front view of the packing.

【図4】同じく、側面図である。FIG. 4 is also a side view.

【図5】円弧状パッキンの圧接の説明図である。FIG. 5 is an explanatory diagram of pressure contact of the arc-shaped packing.

【図6】本発明の第2実施例を示す拡大断面図である。FIG. 6 is an enlarged sectional view showing a second embodiment of the present invention.

【図7】本発明の第3実施例を示す拡大断面図である。FIG. 7 is an enlarged sectional view showing a third embodiment of the present invention.

【図8】従来例における、一部切欠正面図である。FIG. 8 is a partially cutaway front view of a conventional example.

【図9】図8のII―II線に沿う断面図である。FIG. 9 is a sectional view taken along the line II-II in FIG.

【符号の説明】[Explanation of symbols]

1 水道本管(流体管) 2 ケース 2a 第1ケース 2b 第2ケース 2c 排水口 3 フランジ 3a 貫通孔 4 パッキン 4a 円弧状パッキン 4b 棒状パッキン 4c 第1接合部(接合部) 4d 第2接合部(接合部) 4e 平面部 5 第1パッキン溝 6 第2パッキン溝 7 収容凹部(凹部) 8 ボルト・ナット DESCRIPTION OF SYMBOLS 1 Water main pipe (fluid pipe) 2 Case 2a 1st case 2b 2nd case 2c Drain port 3 Flange 3a Through hole 4 Packing 4a Arc-shaped packing 4b Bar-shaped packing 4c 1st joining part (joining part) 4d 2nd joining part ( Joint part) 4e Flat part 5 First packing groove 6 Second packing groove 7 Housing recess (recess) 8 Bolt / nut

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 流体管の周囲を被覆する複数に分割され
たケースと、該ケースを流体管に水密に設置する複数の
円弧状パッキンとからなり、 前記ケースがそれぞれのケースを連結するためのフラン
ジを備え、前記円弧状パッキンの端部を突き合わせてケ
ースと流体管を水密に接続する管とケースのシール構造
であって、 前記円弧状パッキンの端部が、円弧状パッキンの端部を
突き合わせたときに、流体管側である内側端部から順に
接触する形状に形成されていることを特徴とする管とケ
ースのシール構造。
1. A case, comprising: a plurality of divided cases covering the periphery of a fluid pipe; and a plurality of arc-shaped packings for installing the case in a fluid-tight manner on the fluid pipe, wherein the cases are used to connect the respective cases. A seal structure for a tube and a case, comprising a flange, wherein ends of the arc-shaped packing are connected to each other to connect a case and a fluid pipe in a watertight manner, wherein an end of the arc-shaped packing abuts an end of the arc-shaped packing. A pipe and a case sealing structure, which are formed so as to come into contact with each other in order from an inner end which is a fluid pipe side.
【請求項2】 円弧状パッキンの端部の外周に形成さ
れ、フランジにより圧接力を加えるための接合部が形成
され、さらにフランジ対向面には前記接合部を収容する
凹部が形成された請求項1に記載の管とケースのシール
構造。
2. A joint formed on the outer periphery of an end of the arc-shaped packing for applying a pressing force by a flange, and a recess for accommodating the joint is formed on a surface facing the flange. 2. A seal structure between a pipe and a case according to 1.
【請求項3】 円弧状パッキンの接合部近傍が、肉厚に
形成されている請求項1または請求項2に記載の管とケ
ースのシール構造。
3. The seal structure between a tube and a case according to claim 1, wherein a portion near the joint of the arc-shaped packing is formed thick.
【請求項4】 フランジ同士を水密に接続する棒状パッ
キンが一対の接合部を連絡して一体に形成された請求項
1ないし請求項3いずれかに記載の管とケースのシール
構造。
4. The pipe and case sealing structure according to claim 1, wherein a rod-shaped packing for connecting the flanges to each other in a water-tight manner is formed integrally by connecting a pair of joints.
JP9362831A 1997-12-12 1997-12-12 Sealing structure for pipe and case Pending JPH11173474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9362831A JPH11173474A (en) 1997-12-12 1997-12-12 Sealing structure for pipe and case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9362831A JPH11173474A (en) 1997-12-12 1997-12-12 Sealing structure for pipe and case

Publications (1)

Publication Number Publication Date
JPH11173474A true JPH11173474A (en) 1999-06-29

Family

ID=18477843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9362831A Pending JPH11173474A (en) 1997-12-12 1997-12-12 Sealing structure for pipe and case

Country Status (1)

Country Link
JP (1) JPH11173474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017106477A (en) * 2015-12-07 2017-06-15 東尾メック株式会社 Leak prevention unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017106477A (en) * 2015-12-07 2017-06-15 東尾メック株式会社 Leak prevention unit

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