JP2657925B2 - Tube pressure blocking mechanism - Google Patents
Tube pressure blocking mechanismInfo
- Publication number
- JP2657925B2 JP2657925B2 JP63109153A JP10915388A JP2657925B2 JP 2657925 B2 JP2657925 B2 JP 2657925B2 JP 63109153 A JP63109153 A JP 63109153A JP 10915388 A JP10915388 A JP 10915388A JP 2657925 B2 JP2657925 B2 JP 2657925B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- sealing material
- pipe
- screw shaft
- engaging
- 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 - Fee Related
Links
Landscapes
- Pipe Accessories (AREA)
Description
【発明の詳細な説明】 「発明の目的」 本発明は管体耐圧閉塞機構に係り、少くとも数kg/cm2
以上、一般的に10kg/cm2以上のような高い圧力条件にお
いても安定した閉塞シールをなすことのできる管体耐圧
閉塞機構を提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a tube pressure-resistant closing mechanism, and at least several kg / cm 2
As described above, an object of the present invention is to provide a tube pressure-resistant closing mechanism capable of forming a stable closing seal even under a high pressure condition of generally 10 kg / cm 2 or more.
（産業上の利用分野） 各種配管の管端部あるいは中間部などにおいて管内の
気体または液体の高圧条件下で的確な閉塞シールをな
し、あるいは管体閉塞シール条件下で管内流体を適宜に
取出し、更には試験、測定するような目的で使用される
機構。(Industrial application field) At the pipe end or intermediate part of various pipes, make an accurate blockage seal under high pressure conditions of gas or liquid in the pipe, or take out fluid in the pipe appropriately under pipe blockage seal conditions, Furthermore, a mechanism used for such purposes as testing and measuring.
（従来の技術） ガスその他の気体やその他の液体を供給ないし排出
し、あるいはこれらの流体に粉粒物その他を添加した状
態で搬送するような場合に配管を利用することは古くか
ら行われて来たところであり、今日における生活ないし
作業環境は斯うした配管管路の輻湊したものとなってい
る。従ってこのような配管管路においてその内部流体の
流動を停止ないし制限する必要の存することも明かで、
このためにバルブなどの管路中に組込んで配置された機
器が採用されているが、そうした機器の存しない条件下
においても閉塞しなければならないことが多い。即ち上
記のような供給、排出などに用いられる配管は相当の長
距離に亘るのが普通で、そうした長距離且つ巨大な設備
においても随所にバルブなどを設置するには莫大な機器
を必要とすると共に折角の流圧を甚だしく低下するか
ら、極く限られた地点にのみ設けられているのが普通
で、しかもそのような長大な設備において適宜の位置で
工事し、試験測定することが要請され、このような場合
にはそうした管路の任意の位置で閉塞することが必要と
なる。(Prior art) The use of pipes for supplying or discharging gas or other gases or other liquids, or for transporting these fluids with particulates or the like added thereto has been practiced for a long time. It has just come and today's living or working environment is congested with such piping and pipelines. Therefore, it is clear that there is a need to stop or restrict the flow of the internal fluid in such a pipeline,
For this purpose, devices which are installed in a pipeline such as a valve are employed, but they often have to be closed even under conditions where such devices do not exist. That is, the pipes used for supply and discharge as described above generally extend over a considerable long distance, and even in such a long distance and huge equipment, enormous equipment is required to install valves and the like everywhere. In addition, since it greatly reduces the hydraulic pressure at the same time, it is usually provided only at a very limited point, and it is required that such long equipment be constructed at an appropriate position and tested and measured. In such a case, it is necessary to close the pipe at an arbitrary position.
従来このようなバルブなどによらない管路の閉塞手段
としては一般的に詰物をなすことであるが、この木栓な
どの詰物による閉塞は工数が多く、しかも不完全であ
る。そこでこのような従来一般のものの不利を解消すべ
く本発明者等は実開昭56−80974や、特開昭62−206498
などの技術を提案している。即ち受板と押板の間に断面
Ｃ形のリング状シール材を介装し、このリング状シール
材を該シール材および前記受板、押板の中心部に挿嵌さ
れたボルト（ないし螺管）に対するナットの回動で緊締
し、リング状シール材をＵ形に彎曲膨出させて管内をシ
ールするものであり、この技術によれば管体の随所に適
用して閉塞することができ、しかもその操作が前記ナッ
トによる平易な操作力で、的確なシール閉塞を行い得
る。Conventionally, as a means for closing a pipeline not using such a valve or the like, filling is generally performed. However, blocking with a plug such as a wooden plug requires many man-hours and is incomplete. In order to eliminate such disadvantages of the conventional general device, the present inventors have proposed a method disclosed in Japanese Utility Model Application Laid-Open No. 56-80974 and Japanese Patent Application Laid-Open No. 62-206498.
And other technologies. That is, a ring-shaped sealing material having a C-shaped cross section is interposed between the receiving plate and the pressing plate, and the ring-shaped sealing material is inserted into the center of the sealing material, the receiving plate, and the pressing plate. Is tightened by the rotation of the nut with respect to, and the inside of the pipe is sealed by bending and expanding the ring-shaped sealing material in a U-shape. According to this technique, it can be applied to any part of the pipe body and closed. The operation can perform a proper seal closing with a simple operation force by the nut.
（発明が解決しようとする課題） ところが上記のような従来のものにおいて、その適用
される管体の内面は平滑であり、しかも近時においては
斯うした管体を利用して供給されるガスや水などの流体
における流圧は次第に高いものとなりつつある。即ち流
体圧が高くなることにより効率的な流体の供給、排出を
なすことが可能となることは明かであり、一方今日にお
ける住宅などの密集ないし居住地域の拡大化は既存設備
における設計範囲を超えて前記流体を供給排出すること
が要請されつつある。特に既存設備は経年によって老朽
化し、配管自体を更新すべき状態となりつつあり、そう
した老朽化配管を掘出して更新すべきところ、そのよう
な工事自体が著しく大工事であり、しかもそうした既設
配管管路上は交通施設や構築物が設定されていて、その
ような設備の全体を破壊しなければ該工事を実施できな
いような設置当初で予想し得ない変化となっているのが
一般で、事実上改修更新工事を実施できない状態となっ
ている。そこで既設管路内に新設管を設定し、即ち地表
を掘り起すことなく、既設老朽管を新しい管路の保護管
として利用した管路更新工法が開発され、次第に一般化
していて、このような工法の採用された場合においては
既存設備より小径の管路において、既存設備より大量の
流体を移送することが必要となり、その流圧は隔段に高
いものとならざるを得ないが、斯様にして高圧化した配
管管路においては上記したような先行技術では即応し難
い。つまり本発明者等による前記先願技術は頗る的確な
好ましい技術として各方面に広く採用されているが、具
体的に１つの封塞機構で対応し得る圧力条件は1.3kg/cm
2程度が限度であって、平滑な管体内面においてゴム質
の如きシール材の膨出接合力を以てしては成程巧妙な閉
塞シールであるとしても上記圧力条件を超えて閉塞シー
ルすることは至難である。(Problems to be Solved by the Invention) However, in the above-described conventional apparatus, the inner surface of a tube to which the invention is applied is smooth, and more recently, gas supplied using such a tube is used. The fluid pressure in fluids such as water and water is becoming increasingly higher. In other words, it is clear that efficient fluid supply and discharge can be achieved by increasing the fluid pressure, while the expansion of densely populated or residential areas such as houses today exceeds the design range of existing facilities. It is required to supply and discharge the fluid. In particular, the existing facilities are aging, and the pipes themselves are in a state of needing to be renewed.When such aging pipes are to be excavated and renewed, such works themselves are extremely large, and moreover, such existing pipes have to be replaced. Are generally unpredictable changes at the beginning of the installation, when transportation facilities and structures are set up, and such works cannot be carried out without destroying the whole of such facilities. Construction is not possible. Therefore, new pipes have been set up within existing pipes, that is, pipe renewal methods have been developed that use existing old pipes as protection pipes for new pipes without excavating the surface of the ground. When the construction method is adopted, it is necessary to transfer a larger amount of fluid than the existing equipment in a pipe with a smaller diameter than the existing equipment, and the flow pressure must be higher at every other step. It is difficult to immediately respond to the above-described prior art in a pipe line having a high pressure. In other words, the prior application technique by the present inventors has been widely adopted in various fields as a very accurate and preferable technique, but the pressure condition that can be specifically supported by one sealing mechanism is 1.3 kg / cm.
It is limited to about 2 and it is not possible to close the seal beyond the above pressure conditions even if it is a skillfully closed seal with the swelling joining force of a sealing material such as rubber on the smooth inner surface of the pipe. It is very difficult.
勿論、上記のようなシール材および受板、押板を多段
に設けることにより、その耐圧性を向上することについ
て本発明者等が実施検討しているが、このように多段化
することは折角の前記先行技術の有する構成簡易、操作
容易のような技術的メリットを大きく失うものであり、
例えば前記Ｃ形シール材を彎曲膨出させるためのナット
による回動緊締操作のみを考察してもその緊締操作スト
ロークが倍増（仮りに２段として）し、又２つのＣ形シ
ール材に対し同時に緊圧することとなるから操作トルク
も倍増するから緊締操作は数倍に困難なものとなる。Needless to say, the present inventors have studied to improve the pressure resistance by providing the sealing material, the receiving plate, and the pressing plate in multiple stages as described above. The technical advantages such as simple configuration and easy operation of the prior art are greatly lost,
For example, even if only the rotation tightening operation by the nut for bending and expanding the C-shaped sealing material is considered, the tightening operation stroke is doubled (assuming that the C-shaped sealing material is two steps), and the two C-shaped sealing materials are simultaneously applied. Since the tightening operation is doubled, the tightening operation becomes several times more difficult.
「発明の構成」 （課題を解決するための手段） 1. 受板と押板との間に半径方向に屈曲膨出するように
されたリング状シール材を介装せしめて螺合軸材に軸装
し、該螺合軸材に螺合されたナット部材により前記押板
を受板に向けて押圧し上記リング状シール材を屈曲膨出
させて管体内面に圧着シールさせるようにしたものにお
いて、上述した螺合軸材に対しその周側に複数個の係着
板を伸縮性連結材で連結し略所定の間隔を採って配設す
るようにした係着手段を前記ナット部材により上記リン
グ状シール材と共に係脱操作するように設けたことを特
徴とする管体耐圧閉塞機構。"Constitution of the Invention" (Means for solving the problem) 1. A ring-shaped sealing material that is bent and swells in the radial direction is interposed between the receiving plate and the pressing plate to form a screwed shaft. A shaft member is mounted, and the push plate is pressed toward a receiving plate by a nut member screwed to the screw shaft member to bend and bulge the ring-shaped seal material so as to be pressure-sealed to the inner surface of the tube. In the above-mentioned screw member, a plurality of engaging plates are connected to the peripheral side of the screwing shaft member by an elastic connecting member and arranged at substantially predetermined intervals by the nut member. A tubular pressure-resistant closing mechanism provided so as to be engaged and disengaged together with a ring-shaped sealing material.
2. 受板が螺合軸材に固定され、押板と係着手段との間
に介装受部材を設け、該介装受部材に係着手段における
係着板の基端を支承せしめ、ワッシャ部材を介してナッ
ト部材の押圧緊締力を前記係着板に作用させるようにし
た前記１項に記載の管体耐圧閉塞機構。2. The receiving plate is fixed to the screw shaft member, an interposition receiving member is provided between the push plate and the engaging means, and the interposition receiving member supports the base end of the engaging plate in the engaging means, 2. The tube pressure-resistant closing mechanism according to claim 1, wherein a pressing and tightening force of a nut member is applied to the engaging plate via a washer member.
3. 螺合軸材に頭部を形成し、該頭部に係着手段におけ
る係着板の基端側を支承せしめ、該係着板の遊端側に受
板を接合すると共にリング状シール材および押板とナッ
ト部材を上記螺合軸材に軸装し、前記受板と押板との間
におけるリング状シール材の内部にシール材と該シール
材を圧縮して受板と螺合軸材との間隙をシールするため
のスペーサーを介装した前記１項に記載の管体耐圧閉塞
機構。3. A head is formed on the screw shaft, the head is supported on the base end side of the fastening plate in the fastening means, and a receiving plate is joined to the free end side of the fastening plate, and a ring-shaped seal is formed. A material, a push plate, and a nut member are axially mounted on the screwed shaft material, and the seal material and the seal material are compressed inside the ring-shaped seal material between the receiving plate and the push plate, and screwed to the receiving plate. 2. The tube pressure-resistant closing mechanism according to claim 1, wherein a spacer for sealing a gap with the shaft is interposed.
4. シール材を圧縮して受板と螺合軸材との間隙をシー
ルするためのスペーサーと複数個の係着板を連結し略所
定の間隔を採って配設するための伸縮性連結材とが一体
の弾性材で形成された前記３項に記載した管体耐圧閉塞
機構。4. An elastic connecting member for connecting a spacer for compressing the sealing material to seal the gap between the receiving plate and the screw shaft member and the plurality of engaging plates and disposing them at substantially predetermined intervals. 4. The pressure-resistant tube closing mechanism according to the above item 3, wherein the tubular member is formed of an integral elastic material.
5. 押板が管体内径より大径として形成され、該押板と
管端との間にゴム質の如きによる防塵カバーを介装せし
め、前記押板から管体の外部に突出した螺合軸材に螺合
したナット部材を締め込むことにより上記した防塵カバ
ーが管端と押板との間に挟み込まれリング状シール材の
屈曲膨出による管体内面接合シール以前に押板が管端に
接合固定化することを防止すると共に管端より外部土砂
などが内部に進入することを防止するようにしたことを
特徴とする前記１項に記載の管体耐圧閉塞機構。5. The push plate is formed to have a diameter larger than the inner diameter of the tube, a dust-proof cover made of rubber or the like is interposed between the push plate and the end of the tube, and the screwing protrudes from the push plate to the outside of the tube. By tightening the nut member screwed to the shaft, the dustproof cover is sandwiched between the pipe end and the push plate, and the push plate is connected to the pipe end before the inner surface of the pipe is sealed by bending and expanding the ring-shaped sealing material. 2. The pressure-resistant closing mechanism for a pipe according to claim 1, wherein the pipe is prevented from being fixedly joined to the pipe, and at the same time, is prevented from intruding outside earth and sand from the pipe end.
（作用） ナット部材を締め込むと押板が受板に向けて押進され
リング状シール材を外周方向に屈曲膨出させるが、又各
係着板を伸縮性連結材の弾性（伸縮性）に抗して傘開き
状に拡開せしめ、その遊端（外側端）を管体の内面に対
して圧接する。このようなリング状シール材における屈
曲膨出と各係着板の管体内面に対する圧接係止はその何
れかが先行し（従って他方が後行する）あるいは同時進
行であってもよい。然し一般的には係着板が管体内面に
係着固定化し、次いでリング状シール材を膨出シールさ
せるようにする（但しこのリング状シール材の膨出シー
ル作用時にも係着板の固定化が増強される）。リング状
シール材の管体内面に対する圧接は該部分における流体
（ガスまたは液体）の漏洩を阻止し、又傘開き状に拡開
した各係着板遊端の管体内面に対する圧接係止は閉塞機
構全般の管体に対する設定位置を固定化する。(Operation) When the nut member is tightened, the push plate is pushed toward the receiving plate to bend and bulge the ring-shaped sealing material in the outer peripheral direction. The free end (outer end) is pressed against the inner surface of the tube body. Either of the bending and swelling of the ring-shaped sealing material and the press-fitting of the fastening plates to the inner surface of the tube may precede (the other follows) or may proceed simultaneously. However, in general, the attachment plate is fixedly attached to the inner surface of the pipe, and then the ring-shaped sealing material is swelled and sealed. Is increased). The press-contact of the ring-shaped sealing material to the inner surface of the tube prevents leakage of fluid (gas or liquid) at the portion, and the press-contact engagement of the free ends of the respective attachment plates, which are opened like an umbrella, with the inner surface of the tube is closed. Fix the set position of the entire mechanism with respect to the tube.
伸縮性連結材は複数個の各係着片を螺合軸材ないし管
体に対して夫々所定の間隔位置に保持し、しかもナット
部材の弛緩時において各係着片を管体に対する圧接係止
状態から解除する。The elastic connecting member holds each of the plurality of engaging pieces at predetermined intervals with respect to the threaded shaft member or the pipe body, and furthermore, presses the respective engaging pieces against the pipe body when the nut member is loosened. Release from the state.
押板の径が管体内径より小さいときは管体内に進入し
て締め込まれるが、押板の径が管体内径より大きいとき
は係着板が先に管体に係止すると適切な締着閉塞が得難
くなる傾向があり、このような場合に管端と押板との間
にゴム質の如きによる防塵カバーを挟入することによっ
て押板と管端間に締込み代（リング状シール材が完全に
圧接締着されるだけのスペース）を保持し、締込みによ
って防塵の完全を図らしめる。If the diameter of the push plate is smaller than the inner diameter of the tube, it will enter the tube and be tightened. In such a case, a dust-proof cover made of rubber or the like is inserted between the pipe end and the push plate, so that a tightening allowance (ring shape) is formed between the push plate and the pipe end. (The space where the sealing material can be completely pressed and fastened) is maintained, and the dust-proofing is completely achieved by tightening.
係着板と受板との間の螺合軸材周側にシール材を介装
し、適切にスペーサなどをも用いることにより受板が螺
合軸材に対しスライドする場合においても該螺合軸材と
の間の隙間を閉塞シールする。Even when the receiving plate slides with respect to the screwed shaft member by interposing a sealing material on the peripheral side of the screwed shaft member between the engaging plate and the receiving plate and appropriately using a spacer or the like, the screwing is performed. The gap between the shaft and the shaft is closed and sealed.
係着板の係止状態で閉塞機構に管体内圧が作用すると
各係着板による管体への係止力は更に増加される。When the pressure in the pipe acts on the closing mechanism in the locked state of the fastening plates, the locking force of each fastening plate to the tube is further increased.
（実施例） 上記したような本発明によるものの第１の構成関係は
第１図と第２、３図において示す如くであって、ボルト
または螺筒のような螺合軸材１に対し定置される受板２
と該螺合軸材１に対し軸方向において移動可能な押板３
との間に半径方向に屈曲膨出するようにされたリング状
シール材４を介装せしめ、上記押板３を前記螺合軸材１
に螺合したナット部材５により受板２方向に押圧しリン
グ状シール材４を屈曲膨出させてシールさせること自体
は上述した本発明者等による先行技術と同じであり、こ
のため前記した受板２および押板３の前記リング状シー
ル材４に対する接合面に対向した傾斜面部2a、3aの如き
が形成されている。本発明においては上記のような構成
のものにおいて、前記した押板３とナット部材５との間
に介装受部材６と複数個の係着板７を配設したもので、
前記した係着板７の外周部分には第２、３図に示すよう
に各係着板７を所定位置に保持し、しかもナット部材５
による緊圧で拡開作用を行わせるためのゴム質のような
伸縮性連結材８が取付けられ、又この場合には第１図に
示すように受板２が上記した螺合軸材１の先端部に溶接
部12の如きで固定されていて、ナット部材５と各係着板
７との間にはワッシャ部材９が介装されている。(Embodiment) A first structural relationship of the present invention as described above is as shown in FIGS. 1, 2 and 3, and is fixed to a screw shaft 1 such as a bolt or a screw cylinder. Receiving plate 2
And a push plate 3 movable in the axial direction with respect to the screw shaft 1
And a ring-shaped sealing material 4 which is bent and swelled in the radial direction is interposed between the pressing plate 3 and the screw shaft 1.
Pressing in the direction of the receiving plate 2 by means of the nut member 5 screwed into the ring to seal the ring-shaped sealing material 4 by bending and expanding is the same as the above-mentioned prior art by the present inventors. The inclined surfaces 2a and 3a are formed opposite to the joint surfaces of the plate 2 and the pressing plate 3 with respect to the ring-shaped sealing material 4. In the present invention, in the above-described configuration, an interposition receiving member 6 and a plurality of engaging plates 7 are disposed between the pressing plate 3 and the nut member 5,
As shown in FIGS. 2 and 3, each fastening plate 7 is held at a predetermined position on the outer peripheral portion of the fastening plate 7 and
The elastic connecting member 8 such as rubber for performing the expanding action by the tension caused by the above is attached. In this case, as shown in FIG. A washer 9 is interposed between the nut member 5 and each of the attachment plates 7 and is fixed to the distal end portion like a welded portion 12.
第４図には本発明によるもう１つの構成関係が示され
ており、即ち第１〜３図に示したものにおいては管体内
の任意の個所において設定し得るようにしたものである
のに対し、この第４図のものにおいては特に管端に対し
て設定するようにしたものであって、頭部11を有する螺
合軸材１に対して第１〜３図に示したものと同様に伸縮
性連結材８で外周部分を所定位置に保持するように連結
された複数個の係着板７が上記頭部11で内周側端部を受
けられており、このような係着板７に対して受板２、リ
ング状シール材４および押板３が順次に配設され、押板
３には管体10の端部に覆着する被覆部3bが一体に形成さ
れていて、管体10の外部に突出した螺合軸材１に対して
ナット部材５が螺合されている。又この場合には頭部11
で受けられている前記係着板７および受板２部分は管内
流体が進入するものであることからしてリング状シール
材４の内部に押板３の押進力を受け、受板２の螺合軸材
１側に装着されたＯリングのようなシール材14と該シー
ル材14を圧縮シールするスペーサー13が設けられてお
り、即ち押板３のナット部材５による押進でリング状シ
ール材４を彎曲シールさせると共にこのシール材14をも
圧縮して螺合軸杆１と受板２との間隙をシールするよう
に成っている。更に第５図には上記のようなスペーサー
13を用いない本発明のもう１つの構成関係が示されてい
る。即ち頭部11を有する螺合軸杆１に対して係着板７、
受板２、リング状シール材４および押板３を挿着し、該
螺合軸材１に係合されたナット部材５で緊締シールする
ように成っていることは前述した第４図のものと同様で
あるが、この第５図の場合においては上記係着板７の夫
々の配設位置を保持するための伸縮性連結材８と前記シ
ール材14とを一体に形成し、特にシール材14部分につい
ては第４図のものにおけるスペーサー13部分をもゴム質
の如きで一体として形成したもので、更に押板３の内側
には同じくゴム質の如きによる防塵スペーサー15を設
け、ナット部材５による緊締に当って管体10の端部との
間をシールし土層内埋設によっても内部機構部分に土砂
などが進入しないように成っている。FIG. 4 shows another structural relationship according to the present invention, that is, the structure shown in FIGS. 1 to 3 can be set at an arbitrary position in the tube. In FIG. 4, the setting is made especially for the pipe end, and the screw shaft 1 having the head 11 is similar to that shown in FIGS. A plurality of fastening plates 7 connected by an elastic connecting material 8 so as to hold the outer peripheral portion in a predetermined position are received by the head 11 at the inner peripheral end portion. A receiving plate 2, a ring-shaped sealing material 4, and a pressing plate 3 are sequentially disposed on the pressing plate 3, and the pressing plate 3 is integrally formed with a coating portion 3b that covers the end of the tube body 10. The nut member 5 is screwed to the screw shaft 1 protruding outside the body 10. In this case, the head 11
The receiving plate 7 and the receiving plate 2 which are received by the tube receive the pushing force of the pressing plate 3 inside the ring-shaped sealing material 4 because the fluid in the pipe enters, and the receiving plate 2 A sealing member 14 such as an O-ring mounted on the screw shaft member 1 and a spacer 13 for compressively sealing the sealing member 14 are provided. The material 4 is curvedly sealed and the sealing material 14 is also compressed to seal the gap between the screw shaft 1 and the receiving plate 2. Further, FIG. 5 shows a spacer as described above.
Another configuration relationship of the present invention without using 13 is shown. That is, the attachment plate 7 with respect to the screw shaft 1 having the head 11,
The receiving plate 2, the ring-shaped sealing member 4 and the pressing plate 3 are inserted and tightly sealed with the nut member 5 engaged with the screw shaft member 1. In the case of FIG. 5, the elastic connecting member 8 for holding the respective mounting positions of the fastening plates 7 and the sealing material 14 are integrally formed. The spacer 14 in FIG. 4 is formed integrally with the spacer 13 in FIG. 4. Further, a dust-proof spacer 15 also made of rubber is provided inside the push plate 3, and the nut member 5 is provided. In this case, the space between the end of the pipe 10 and the end of the pipe 10 is sealed to prevent earth and sand from entering the internal mechanism even when buried in the soil layer.
なお前記係着板７については一般的な形態である方形
板が採用された場合においてナット部材５による緊締時
に管体10の内面に対して第６図に示すように両側角部7a
で接合することは明かであり、従って材質的に硬度の高
いものが好ましく、例えば焼入鋼を採用した場合におい
ては一般的な鋼管である管体10の内面に喰い込んで係止
し的確な係着が得られる。又上記のように係着板７が両
側角部7aで係着する構成のものにおいては係着板７の数
如何が具体的な係着力に影響することは明かであって、
特に適用すべき管体10が大径の場合においてはこのよう
な事由から係着板７の配設数を多くすることが管内高圧
条件に耐えるために枢要である。即ちこのような大径管
体に対して前記第５図のものを採用するには第７図に示
すように螺合軸材１の頭部11に対して別に受盤部材21を
取付け、該受盤部材21の周側に形成された段状受部21a
において係着板７の基端を支承せしめるもので、このよ
うにすると頭部11より大径化した段状受部21aにおいて
相当多数の係着板７を配設支承することが可能となる。
又このようにして大径管となった場合においては第５図
に示したものにおける第４図のスペーサー13、シール材
14に相当した部分は別体のシール材24を採用する。As shown in FIG. 6, when the fastening plate 7 is a rectangular plate of a general form, the inner surface of the tube 10 is tightened by the nut member 5 as shown in FIG.
It is evident that the material is high in hardness.For example, when quenched steel is used, it is bitten into the inner surface of a pipe 10 which is a general steel pipe, and is locked and accurately formed. Engagement is obtained. Also, as described above, it is clear that the number of the fastening plates 7 affects the specific fastening force in the configuration in which the fastening plates 7 are engaged at both side corners 7a,
In particular, when the pipe 10 to be applied has a large diameter, it is important to increase the number of the fastening plates 7 to withstand the high pressure condition in the pipe for such a reason. That is, in order to adopt the structure shown in FIG. 5 for such a large-diameter pipe, a receiving plate member 21 is separately attached to the head 11 of the screwed shaft member 1 as shown in FIG. Step-shaped receiving portion 21a formed on the peripheral side of receiving member 21
In this case, the base end of the attachment plate 7 is supported. In this way, it is possible to arrange and support a considerably large number of the attachment plates 7 in the step-shaped receiving portion 21a having a larger diameter than the head 11.
In the case where a large-diameter pipe is formed in this manner, the spacer 13 and the sealing material shown in FIG.
The part corresponding to 14 employs a separate sealing material 24.
伸縮性連結材８に対する各係着板７の取付け状態につ
いては第８図にその断面構造が示されており、同図
（ａ）のように各係着板７が伸縮性連結材８の面内に埋
設されたもの、あるいは同図（ｂ）のように各係着板７
が伸縮性連結材８の面上に取付けられるものの如きの何
れでもよく、鋼片の如きである各係着板７はゴム質であ
る伸縮性連結材８に対して焼付けの如きで安定に止着さ
れる。FIG. 8 shows the cross-sectional structure of the attachment state of each fastening plate 7 with respect to the elastic connecting member 8, and as shown in FIG. Embedded in the inside, or as shown in FIG.
May be mounted on the surface of the elastic connecting member 8, and each fastening plate 7, such as a billet, is stably stopped, such as by baking, against the elastic connecting member 8, which is made of rubber. Be worn.
本発明によるものの具体的な設計製作例として、外径
5mmで内径が4mmの鋼管10端部に適用すべき耐圧閉塞機構
として、螺合軸材１としては外径15mmでその軸心に径6m
mの通孔の形成されたものを採用し、即ちこの通孔を介
して管体ガス流体を外部に取出し、その圧力ないし組成
を試験測定するようにしたもので、受板２、押板３とし
ては厚さが3mmの鋼板を図示のように成形したものを用
い、リング状シール材４は中間部分（最も薄肉化した部
分）の厚さが6mmで硬度JIS HS 50のゴム材を採用し、こ
れらに対する係着板６としては幅が8mmで長さが19mmで
あり厚さ3.2mmの軟鋼鋼板を第６図のように６枚等間隔
に位置するようにゴム質の伸縮性連結材８に焼きつけ接
着したものを第５図のように組付けたものを採用して蝶
ナットであるナット部材５により前記鋼管10の内面を水
により湿潤させた条件下で充分緊締した。即ちこのよう
にして螺合軸材１のナット部材５より延出した部分に管
体を接続し、前記鋼管10内を昇圧した結果は11.2kg/cm2
に達するまでは閉塞機構が全く移動することがなく、従
って又リング状シール材４によるガスシールも完全であ
って全く漏洩のないものであることが確認され、斯うし
た結果は第１〜３図、第４図のものにおいても同様に得
ることができた。As a specific design and production example of the present invention, the outer diameter
As a pressure-resistant closing mechanism to be applied to the end of a steel pipe 10 having a diameter of 5 mm and an inner diameter of 4 mm, the screwed shaft 1 has an outer diameter of 15 mm and a diameter of 6 m at its axis.
m, a pipe gas fluid is taken out to the outside through this through hole, and its pressure or composition is tested and measured. A 3 mm thick steel plate is formed as shown in the figure, and the ring-shaped sealing material 4 is made of a rubber material with a thickness of 6 mm in the middle part (the thinnest part) and a hardness of JIS HS 50. The elastic connecting members 8 are made of rubber-like elastic connecting members 8 such that six mild steel plates each having a width of 8 mm, a length of 19 mm and a thickness of 3.2 mm are arranged at regular intervals as shown in FIG. 5 was assembled as shown in FIG. 5, and the inner surface of the steel pipe 10 was sufficiently tightened under the condition that the inner surface of the steel pipe 10 was moistened with water by a nut member 5 as a wing nut. That is, a pipe was connected to the portion of the screw shaft 1 extending from the nut member 5 in this manner, and the result of pressurizing the inside of the steel pipe 10 was 11.2 kg / cm 2.
, The closing mechanism does not move at all, and it has been confirmed that the gas seal by the ring-shaped sealing member 4 is also complete and completely free from leakage. 4 and FIG. 4 were similarly obtained.
これに対し上記と同じ鋼管10に対し、前記した係着板
７および伸縮性連結材８を用いないで、受板２と押板３
の間にリング状シール材４を介装したものについて同様
に緊締締着し、鋼管10内を昇圧させた場合においては鋼
管10の内面が絶乾状態であると2.3kg/cm2を超えること
によって閉塞機構が押し出され、従って漏れを生ずるこ
ととなるのに対し、鋼管10の内面を水で湿潤させた条件
下の場合には1.3kg/cm2でスライドし漏洩を発生するも
のであった。On the other hand, for the same steel pipe 10 as described above, the receiving plate 2 and the pressing plate 3
When the inner surface of the steel pipe 10 is in a dry state when the pressure inside the steel pipe 10 is increased by tightening and tightening similarly with the ring-shaped sealing material 4 interposed therebetween, it should exceed 2.3 kg / cm 2. While the closing mechanism is pushed out, a leak occurs, whereas under the condition that the inner surface of the steel pipe 10 is moistened with water, the steel pipe 10 slides at 1.3 kg / cm 2 to generate a leak. .
即ち本発明によるものは係着板を採用することにより
閉塞機構のスライドし易い湿潤条件下において８〜９倍
も閉塞性能を向上し得るものであることが確認され、勿
論これを複数段に採用することも可能で、それによって
耐圧性能を比例的に高め得られる。何れにしてもコンパ
クトな構成により安定且つ高度の耐圧閉塞を実現し得る
ことを知った。That is, it was confirmed that the present invention can improve the closing performance by 8 to 9 times under the humid condition in which the closing mechanism is easy to slide by employing the fastening plate. It is also possible to increase the pressure resistance performance proportionally. In any case, it has been found that stable and high pressure blocking can be realized by a compact configuration.
「発明の効果」 以上説明したような本発明によるときは、管体の中間
部ないし端部の如き、特別なバルブなどの採用されない
条件下において、しかも相当に高い管内流体圧によって
も充分に安定な閉塞シールを確保し得るもので、その構
成も比較的簡易で、取扱いも上記のような高圧条件下で
あるに拘わらず頗る容易であるなどの効果を共に有して
おり、近時における次第に高圧化した各種配管ラインに
関する工事ないし試験測定などに広く利用することが可
能で工業的にその効果の大きい発明である。[Effect of the Invention] According to the present invention as described above, it is sufficiently stable under conditions where special valves and the like are not employed, such as the middle portion or end portion of the pipe, and even with a considerably high pipe fluid pressure. It is possible to secure a simple closing seal, the structure is relatively simple, and the handling is extremely easy irrespective of the high pressure conditions as described above. This invention can be widely used for construction or test measurement of various high pressure piping lines, and is industrially highly effective.
図面は本発明の技術的内容を示すものであって、第１図
は本発明による１つの構成関係を示した断面図、第２図
はその係着板および伸縮性連結材についての正面図、第
３図はその断面図、第４図は本発明による他の構成関係
を示した第１図と同様な断面図、第５図は本発明による
更に別の構成関係を示した第１、４図と同様な断面図、
第６図はその係着板の配設関係を示した正面図、第７図
は前記第５図の形式によるものを比較的大径の管体に適
用する場合の係着板部分に関する断面図、第８図は伸縮
性連結材に対する係着片の取付状態の若干を示した断面
図である。 然してこれらの図面において、１は螺合軸材、２は受
板、３は押板、４はリング状シール材、５はナット部
材、６は介装受部材、７は係着板、８は伸縮性連結材、
９はワッシャ部材、10は管体、11は螺合軸材の頭部、13
はスペーサー、14はシール材、21は受盤部材、21aはそ
の段状受部、24はシール材を示すものである。The drawings show the technical contents of the present invention, FIG. 1 is a cross-sectional view showing one structural relationship according to the present invention, FIG. 2 is a front view of the fastening plate and the elastic connecting material, FIG. 3 is a sectional view thereof, FIG. 4 is a sectional view similar to FIG. 1 showing another configuration according to the present invention, and FIG. Sectional view similar to the figure,
FIG. 6 is a front view showing the arrangement of the attachment plates, and FIG. 7 is a cross-sectional view of the attachment plate portion in the case of applying the type shown in FIG. 5 to a pipe having a relatively large diameter. FIG. 8 is a cross-sectional view showing a part of the attachment state of the engaging piece to the elastic connecting member. However, in these drawings, 1 is a screw shaft material, 2 is a receiving plate, 3 is a pressing plate, 4 is a ring-shaped sealing material, 5 is a nut member, 6 is an interposition receiving member, 7 is a fastening plate, and 8 is Elastic connecting material,
9 is a washer member, 10 is a tube, 11 is a head of a screwed shaft, 13
Denotes a spacer, 14 denotes a sealing material, 21 denotes a receiving plate member, 21a denotes a stepped receiving portion thereof, and 24 denotes a sealing material.
Claims (5)
るようにされたリング状シール材を介装せしめて螺合軸
材に軸装し、該螺合軸材に螺合されたナット部材により
前記押板を受板に向けて押圧し上記リング状シール材を
屈曲膨出させて管体内面に圧着シールさせるようにした
ものにおいて、上述した螺合軸材に対しその周側に複数
個の係着板を伸縮性連結材で連結し略所定の間隔を採っ
て配設するようにした係着手段を前記ナット部材により
上記リング状シール材と共に係脱操作するように設けた
ことを特徴とする管体耐圧閉塞機構。1. A ring-shaped sealing material which is bent and swells in the radial direction between a receiving plate and a pressing plate, is mounted on a screw shaft, and is screwed onto the screw shaft. With the nut member combined, the pressing plate is pressed toward the receiving plate, and the ring-shaped sealing material is bent and expanded so as to be pressure-sealed to the inner surface of the pipe. A plurality of engaging plates are connected to the peripheral side by an elastic connecting member and are arranged at substantially predetermined intervals so that engaging and disengaging operations are performed by the nut member together with the ring-shaped sealing member. A tubular body pressure-resistant closing mechanism provided.
段との間に介装受部材を設け、該介装受部材に係着手段
における係着板の基端を支承せしめ、ワッシャ部材を介
してナット部材の押圧緊締力を前記係着板に作用させる
ようにした請求項１に記載の管体耐圧閉塞機構。2. A receiving plate is fixed to a screw shaft member, an interposition receiving member is provided between the push plate and the engaging means, and the base end of the engaging plate in the engaging means is attached to the interposing means. 2. The tube pressure-resistant closing mechanism according to claim 1, wherein the pressing and tightening force of the nut member is applied to the engaging plate via a washer member.
段における係着板の基端側を支承せしめ、該係着板の遊
端側に受板を接合すると共にリング状シール材および押
板とナット部材を上記螺合軸材に軸装し、前記受板と押
板との間におけるリング状シール材の内部にシール材と
該シール材を圧縮して受板と螺合軸材との間隙をシール
するためのスペーサーを介装した請求項１に記載の管体
耐圧閉塞機構。3. A head portion is formed on the screw shaft member, and the head portion is supported on a base end side of an engaging plate in an engaging means, and a receiving plate is joined to a free end side of the engaging plate. A ring-shaped sealing material, a push plate, and a nut member are mounted on the screw shaft member, and the sealing material and the sealing material are compressed inside the ring-shaped sealing material between the receiving plate and the pressing plate. 2. The pressure-resistant closing mechanism according to claim 1, further comprising a spacer for sealing a gap between the pipe and the screw shaft. 3.
隙をシールするためのスペーサーと複数個の係着板を連
結し略所定の間隔を採って配設するための伸縮性連結材
とが一体の弾性材で形成された請求項３に記載した管体
耐圧閉塞機構。4. A spacer for compressing a sealing material to seal a gap between a receiving plate and a screw shaft and connecting and connecting a plurality of engaging plates at substantially predetermined intervals. The tube pressure-resistant closing mechanism according to claim 3, wherein the elastic connecting member is formed of an integral elastic material.
該押板と管端との間にゴム質の如きによる防塵カバーを
介装せしめ、前記押板から管体の外部に突出した螺合軸
材に螺合したナット部材を締め込むことにより上記した
防塵カバーが管端と押板との間に挟み込まれリング状シ
ール材の屈曲膨出による管体内面接合シール以前に押板
が管端に接合固定化することを防止すると共に管体より
外部土砂などが内部に進入することを防止するようにし
たことを特徴とする請求項１に記載の管体耐圧閉塞機
構。5. The push plate is formed to have a diameter larger than the inner diameter of the tube,
A dust-proof cover made of rubber or the like was interposed between the push plate and the end of the pipe, and the nut member screwed into a screw shaft projecting from the push plate to the outside of the tube body was tightened. A dust-proof cover is sandwiched between the pipe end and the push plate to prevent the push plate from joining and fixing to the pipe end before the inner surface of the pipe is sealed by bending and expanding the ring-shaped sealing material. 2. The pressure-resistant tube closing mechanism according to claim 1, wherein an intrusion into the inside is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63109153A JP2657925B2 (en) | 1988-05-06 | 1988-05-06 | Tube pressure blocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63109153A JP2657925B2 (en) | 1988-05-06 | 1988-05-06 | Tube pressure blocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01279196A JPH01279196A (en) | 1989-11-09 |
| JP2657925B2 true JP2657925B2 (en) | 1997-09-30 |
Family
ID=14502973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63109153A Expired - Fee Related JP2657925B2 (en) | 1988-05-06 | 1988-05-06 | Tube pressure blocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2657925B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043027A1 (en) * | 2003-10-31 | 2005-05-12 | Waterworks Technology Development Organization Co., Ltd. | Pipe line-closing device |
| CN100554753C (en) * | 2003-10-31 | 2009-10-28 | 株式会社水道技术开发机构 | Pipe line-closing device |
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| KR100952203B1 (en) * | 2007-12-17 | 2010-04-09 | 최윤경 | Device for blocking a pipe |
| KR100977058B1 (en) * | 2007-12-17 | 2010-08-20 | 최윤경 | Device for blocking a water pipe |
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1988
- 1988-05-06 JP JP63109153A patent/JP2657925B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043027A1 (en) * | 2003-10-31 | 2005-05-12 | Waterworks Technology Development Organization Co., Ltd. | Pipe line-closing device |
| CN100554753C (en) * | 2003-10-31 | 2009-10-28 | 株式会社水道技术开发机构 | Pipe line-closing device |
| US7717136B2 (en) | 2003-10-31 | 2010-05-18 | Waterworks Technology Development Organization Co., Ltd. | Pipeline closing apparatus |
| KR101894185B1 (en) | 2017-03-27 | 2018-08-31 | 이윤표 | Pipe lock nut / washer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01279196A (en) | 1989-11-09 |
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