JP5823273B2 - Fluid control holding method and engagement tool used at that time - Google Patents

Fluid control holding method and engagement tool used at that time Download PDF

Info

Publication number
JP5823273B2
JP5823273B2 JP2011265091A JP2011265091A JP5823273B2 JP 5823273 B2 JP5823273 B2 JP 5823273B2 JP 2011265091 A JP2011265091 A JP 2011265091A JP 2011265091 A JP2011265091 A JP 2011265091A JP 5823273 B2 JP5823273 B2 JP 5823273B2
Authority
JP
Japan
Prior art keywords
fluid
holding
tool
casing
shaft member
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.)
Active
Application number
JP2011265091A
Other languages
Japanese (ja)
Other versions
JP2013117264A (en
Inventor
聡 玉田
聡 玉田
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 JP2011265091A priority Critical patent/JP5823273B2/en
Publication of JP2013117264A publication Critical patent/JP2013117264A/en
Application granted granted Critical
Publication of JP5823273B2 publication Critical patent/JP5823273B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Branch Pipes, Bends, And The Like (AREA)
  • Valve Housings (AREA)

Description

本発明は、流体管に対し密封状に取り付けられる筐体と、前記筐体に連通するケース体と、制流体が接続され、軸方向に進退移動することによって前記制流体を前記ケース体を介し前記筐体内に設置する軸部材と、前記筐体内に設置された前記制流体を保持する保持具とを用い、前記筐体内に不断流状態で設置された前記制流体を該筐体に保持する制流体保持方法、及びその際に用いられる係合具に関する。   The present invention provides a casing that is hermetically sealed with respect to a fluid pipe, a case body that communicates with the casing, and a fluid control that is connected and moves forward and backward in the axial direction so that the fluid is controlled via the case body. Using the shaft member installed in the housing and the holder for holding the fluid control installed in the housing, the fluid control installed in an uninterrupted state in the housing is held in the housing. The present invention relates to a fluid damping holding method and an engagement tool used at that time.

従来の制流体保持方法は、穿孔された配水管(流体管)に突入する弁体(制流体)と弁体を押さえる弁蓋(保持具)とから構成された閉止用制水弁を、T字管(筐体)における弁蓋の外径より大きく設定された分岐管部分(開口部)外端のフランジ面に対して取り付けている(例えば、特許文献1参照)。   In the conventional fluid control holding method, a water control valve for closing composed of a valve body (control fluid) that enters a perforated water distribution pipe (fluid pipe) and a valve lid (holding tool) that holds the valve body is provided as T It attaches with respect to the flange surface of the branch pipe part (opening part) outer end set larger than the outer diameter of the valve lid in a character pipe (housing | casing) (for example, refer patent document 1).

実公昭60−39591号公報(第4頁、第7図)Japanese Utility Model Publication No. 60-39591 (page 4, FIG. 7)

しかしながら、特許文献1にあっては、閉止用制水弁は、フランジ面の外面、つまりT字管の外側に取り付けられるため、別段の部材若しくは工程を用いずに弁体をT字管内に密封状に保持することが困難であるだけでなく、フランジ面が弁蓋の外径より大きく設定されているため、フランジ面に閉止用制水弁を設置した後、配水管の周辺地盤の掘削作業等の際に突出したフランジ面と干渉したり、経年劣化により腐食するという問題がある。   However, in Patent Document 1, since the water control valve for closing is attached to the outer surface of the flange surface, that is, the outside of the T-shaped tube, the valve body is sealed in the T-shaped tube without using a separate member or process. In addition to being difficult to hold in the shape, the flange surface is set larger than the outer diameter of the valve lid, so after installing a water control valve for closing on the flange surface, excavation work around the ground around the distribution pipe There is a problem in that it interferes with the protruding flange surface in the case of corrosion or corrodes due to aging.

本発明は、このような問題点に着目してなされたもので、作業具を内部に導入した後、別段の工程を経ること無く、すぐに筐体に保持でき、且つ筐体の開口部が外方に張出すことなく小型化した制流体保持方法及びその際に用いられる係合具を提供することを目的とする。   The present invention has been made paying attention to such problems, and can be immediately held in the casing without any separate steps after the work implement is introduced therein, and the opening of the casing is provided. It is an object of the present invention to provide a fluid-retaining-holding method that is reduced in size without projecting outward, and an engagement tool used at that time.

前記課題を解決するために、本発明の制流体保持方法は、
流体管に対し密封状に取り付けられる筐体と、前記筐体に連通するケース体と、制流体が接続され、軸方向に進退移動することによって前記制流体を前記ケース体を介し前記筐体内に設置する軸部材と、前記筐体内に設置された前記制流体を保持する保持具と、前記保持具に取外し可能に設けられ、該保持具を前記筐体に係合させる係合具とを用い、前記筐体内に不断流状態で設置された前記制流体を該筐体に保持する制流体保持方法であって、
前記保持具及び該保持具に設けられた前記係合具を、前記軸部材によって前記制流体とともに前記筐体に向けて導入し、
前記軸部材により前記制流体とともに前記筐体内に設置された前記保持具を、前記係合具によって前記筐体に係合し、
前記係合具を前記保持具から取り外すことを特徴としている。
この特徴によれば、軸部材に接続された制流体とともに、この制流体を保持する保持具を軸部材によって筐体内に設置し、この保持具を係合具により筐体に係合できるため、筐体の外方から制流体を保持する別段の工程を経ること無く、制流体の設置後すぐに筐体に保持できるばかりか、制流体を保持した保持具を筐体に残して係合具を取り外すことで、制流体設置後の筐体を小型化できる。
In order to solve the above-described problem, the fluid control holding method of the present invention includes:
A housing attached in a sealed manner to the fluid pipe, a case body communicating with the housing, and a fluid control is connected, and the fluid is transferred into the housing via the case body by moving forward and backward in the axial direction. A shaft member to be installed, a holder for holding the fluid control installed in the casing, and an engagement tool that is detachably provided on the holder and engages the holder with the casing. And a fluid control holding method for holding the fluid control installed in the casing in a continuous flow state in the casing,
Introducing the holding tool and the engaging tool provided on the holding tool toward the casing together with the fluid control by the shaft member;
The holding member installed in the casing together with the fluid control by the shaft member is engaged with the casing by the engaging tool,
The engagement tool is removed from the holding tool.
According to this feature, together with the damping fluid connected to the shaft member, the holder that holds the damping fluid can be installed in the casing by the shaft member, and the holder can be engaged with the casing by the engaging tool. Without having to go through a separate process of holding the fluid control from the outside of the housing, it can be held in the housing immediately after the installation of the fluid control, and the engaging tool can be retained with the fluid holding fluid retained in the housing. By removing the, the housing after installation of the fluid control can be reduced in size.

本発明の制流体保持方法は、
前記係合具は、該係合具の先端部が前記保持具に設けられ、前記軸部材の軸方向に延設されていることを特徴としている。
この特徴によれば、係合具の先端部から軸方向に離間した適宜箇所を操作することで、保持具を係合できるため、保持具の係合操作をし易い。
The fluid control holding method of the present invention comprises:
The engaging tool is characterized in that a distal end portion of the engaging tool is provided in the holding tool and extends in the axial direction of the shaft member.
According to this feature, the holding tool can be engaged by operating an appropriate portion separated in the axial direction from the distal end portion of the engaging tool, so that the holding tool can be easily engaged.

本発明の制流体保持方法は、
前記係合具は、前記保持具に対し前記軸部材の退行方向に移動することで、前記保持具から取外し可能となっていることを特徴としている。
この特徴によれば、係合具を保持具とともに進行させる際には外れてしまうことなく、保持具を筐体に係合した後の係合具を、軸部材の退行方向に移動するだけで容易に取り外すことができる。
The fluid control holding method of the present invention comprises:
The engaging tool can be detached from the holding tool by moving in the retracting direction of the shaft member with respect to the holding tool.
According to this feature, when the engaging tool is advanced together with the holding tool, the engaging tool after engaging the holding tool with the housing is simply moved in the retracting direction of the shaft member without being disengaged. It can be easily removed.

本発明の制流体保持方法は、
前記保持具は、前記開口部内で回動することで該開口部内面と係合する中蓋であることを特徴としている。
この特徴によれば、保持具である中蓋を回動するだけで開口部内面に係合できるため、係合操作が容易である。
The fluid control holding method of the present invention comprises:
The holder is an inner lid that rotates in the opening to engage the inner surface of the opening.
According to this feature, it is possible to engage with the inner surface of the opening simply by rotating the inner lid, which is a holder, so that the engaging operation is easy.

本発明の制流体保持方法の際に用いられる係合具は、
流体管に対し密封状に取り付けられる筐体と、前記筐体に連通するケース体と、制流体が接続され、軸方向に進退移動することによって前記制流体を前記ケース体を介し前記筐体内に設置する軸部材と、前記筐体内に設置された前記制流体を保持する保持具とを用い、前記筐体内に不断流状態で設置された前記制流体を該筐体に保持する制流体保持方法の際に用いられる係合具であって、
該係合具の先端部が前記保持具に取外し可能に設けられ、前記軸部材の軸方向に延設されており、
前記軸部材によって前記制流体及び前記保持具とともに前記筐体に向けて導入され、
前記軸部材により前記制流体とともに前記筐体内に設置された前記保持具を該筐体に係合するようになっていることを特徴としている。
この特徴によれば、軸部材に接続された制流体とともに、この制流体を保持する保持具を軸部材によって筐体内に設置し、この保持具を係合具により筐体に係合できるため、筐体の外方に突出する箇所がない。また、筐体の外方から制流体を保持する別段の工程を経ること無く、制流体の設置後すぐに筐体に保持できるばかりか、制流体を保持した保持具を筐体に残して係合具を取り外すことで、取り外した係合具を別の制流体保持方法の際に再使用することができる。
The engaging tool used in the fluid damping holding method of the present invention is:
A housing attached in a sealed manner to the fluid pipe, a case body communicating with the housing, and a fluid control is connected, and the fluid is transferred into the housing via the case body by moving forward and backward in the axial direction. Using a shaft member to be installed and a holder for holding the fluid control installed in the casing, the fluid control holding method for holding the control fluid installed in the casing in an uninterrupted state in the casing An engagement tool used in the case of
A distal end portion of the engagement tool is detachably provided on the holder and extends in the axial direction of the shaft member;
The shaft member is introduced toward the housing together with the fluid control and the holder,
The shaft member is configured to engage the holder, which is installed in the casing together with the fluid control, with the casing.
According to this feature, together with the damping fluid connected to the shaft member, the holder that holds the damping fluid can be installed in the casing by the shaft member, and the holder can be engaged with the casing by the engaging tool. There are no protruding parts on the outside of the housing. In addition, it is possible not only to hold the control fluid from the outside of the housing, but also to hold the control fluid immediately after the installation of the control fluid, and to leave the holding tool holding the control fluid in the housing. By removing the combination tool, the removed engagement tool can be reused in another method of holding the fluid.

(a)は、実施例1における流体管と筐体と取付具とを示す断面図であり、(b)は、(a)におけるA−A視平面図であり、(c)は、同じくB−B視平面図である。(A) is sectional drawing which shows the fluid pipe | tube, a housing | casing, and a fixture in Example 1, (b) is an AA top view in (a), (c) is B similarly -B view top view. 筐体に各種部材を取り付ける方法を示す断面図である。It is sectional drawing which shows the method of attaching various members to a housing | casing. 制流体が筐体に導入された態様を示す断面図である。It is sectional drawing which shows the aspect by which the fluid control was introduced into the housing | casing. (a)は、開口部に対する中蓋の導入方法を示す平面図であり、(b)は、中蓋の設置方法を示す平面図である。(A) is a top view which shows the introduction method of the inner cover with respect to an opening part, (b) is a top view which shows the installation method of an inner cover. 筐体から各種部材を取り外す工程を示す断面図である。It is sectional drawing which shows the process of removing various members from a housing | casing. 筐体に制流体を保持する態様を示す断面図である。It is sectional drawing which shows the aspect which hold | maintains a fluid control in a housing | casing. 開口部を閉塞する態様を示す断面図である。It is sectional drawing which shows the aspect which obstruct | occludes an opening part. 実施例2における開口部を閉塞する態様を示す断面図である。It is sectional drawing which shows the aspect which obstruct | occludes the opening part in Example 2. FIG.

本発明に係る制流体保持方法及びその際に用いられる係合具を実施するための形態を、実施例に基づいて以下に説明する。   A mode for carrying out a fluid damping holding method according to the present invention and an engagement tool used at that time will be described below based on examples.

実施例1に係る制流体保持方法及びその際に用いられる係合具につき、図1から図7を参照して説明する。図1に示されるように、符号1の流体管は、例えば、地中に埋設されるガス用の鋳鋼製の流体管1であって、この流体管1は、2分割構造の筐体20によって所定箇所が囲繞されている。尚、本発明に係る流体管は、ダクタイル鋳鉄、その他鋳鉄、鋼、塩化ビニール、ポリエチレン若しくはポリオレフィン製等であってもよく、また、流体管は、3分割以上の複数分割構造の筐体によって囲繞されても構わない。更に尚、本実施例では流体管内の流体はガスであるが、流体管の内部を流れる流体は必ずしもガスに限らず、例えば上水、工業用水や下水等の他、ガスと液体との気液混合体であっても構わない。   A method of holding fluid control according to the first embodiment and an engagement tool used at that time will be described with reference to FIGS. As shown in FIG. 1, the fluid pipe 1 is, for example, a fluid pipe 1 made of cast steel for gas buried in the ground, and the fluid pipe 1 is separated by a housing 20 having a two-part structure. The predetermined place is surrounded. The fluid pipe according to the present invention may be made of ductile cast iron, other cast iron, steel, vinyl chloride, polyethylene, polyolefin, or the like, and the fluid pipe is surrounded by a casing having a multiple division structure of three or more divisions. It does not matter. Furthermore, in the present embodiment, the fluid in the fluid pipe is a gas, but the fluid flowing in the fluid pipe is not necessarily a gas. For example, in addition to water, industrial water, sewage, etc., gas-liquid of gas and liquid It may be a mixture.

図1(a)に示されるように筐体20は、流体管1を囲繞する本体部2cと、本体部2cから上方に延出され、上端に開口する開口部20aを有する延設部2bと、から構成されており、流体管1の外面に対して溶接されることで密封状に取り付けられている。尚、この筐体は、例えば、分割筐体同士にシール部材を介して密封状に接続し、管軸方向の両端部に別体の押輪等を取り付けてもよく、密封状に取り付けられるものであれば構わない。   As shown in FIG. 1A, the housing 20 includes a main body 2c surrounding the fluid pipe 1, and an extending portion 2b having an opening 20a extending upward from the main body 2c and opening at the upper end. , And is attached to the outer surface of the fluid pipe 1 in a sealed manner by welding. In addition, for example, this casing may be connected to the divided casings in a sealed manner via a seal member, and separate push wheels or the like may be attached to both ends in the tube axis direction, or the sealed casings may be attached. It doesn't matter if it exists.

本体部2cの内面には、流体管1に向けて突設された凸部25が形成されている。開口部20aの外周面には、環条の凹溝26が全周に亘って形成されており、凹溝26より上部である開口部20aの上端は、後述する本実施例の取付具40が設置される被設置部27となっている。さらに、開口部20aの内周面には、全周に亘って設けられる環条の環状溝24aと、この環状溝24aから開口部20aの上端までそれぞれ垂直に延び、略90度間隔ごとに離間して設けられる4条の導入溝24bと、から構成される嵌合溝部24が形成されている。尚、導入溝は、例えば3条以下であってもよいし、若しくは5条以上であっても構わない。更に尚、環状溝24aに替えて、周方向に部分的のみに設けられる溝を複数条穿設し、各溝の端部に後述する中蓋の嵌合部が当接することで係合するようにしてもよい。   A convex portion 25 projecting toward the fluid pipe 1 is formed on the inner surface of the main body portion 2c. On the outer peripheral surface of the opening 20a, an annular groove 26 is formed over the entire circumference, and the upper end of the opening 20a, which is an upper part of the groove 26, is provided with a fixture 40 of this embodiment described later. It becomes the to-be-installed part 27 installed. Further, on the inner peripheral surface of the opening 20a, a ring-shaped annular groove 24a is provided over the entire circumference, and extends vertically from the annular groove 24a to the upper end of the opening 20a, and is separated at intervals of approximately 90 degrees. The fitting groove portion 24 is formed from four introduction grooves 24b provided in this manner. In addition, the introduction groove may be, for example, 3 or less, or 5 or more. Furthermore, instead of the annular groove 24a, a plurality of grooves provided only partially in the circumferential direction are perforated, and the engagement portion of the inner lid described later is brought into contact with the end of each groove so as to be engaged. It may be.

先ず、この筐体20の開口部20aに対して、環状の取付具40を密封状に取り付ける。この取付具40は、開口部20aの外周面よりも外径方向に環状に張り出した本発明のフランジ部である取付部40aと、取付部40aの外径と略同一の外径を有する2分割構造の係止部40bと、から構成されている。尚、係止部は、2分割構造に限らず、3分割以上の分割構造であってもよい。   First, the annular attachment 40 is attached to the opening 20a of the housing 20 in a sealed manner. The fixture 40 includes a mounting portion 40a that is a flange portion of the present invention projecting in an annular shape from the outer peripheral surface of the opening 20a, and a two-part split that has substantially the same outer diameter as the outer diameter of the mounting portion 40a. It is comprised from the latching | locking part 40b of a structure. In addition, the latching | locking part is not restricted to 2 division structure, The division structure of 3 divisions or more may be sufficient.

図1(b)に示すように、取付部40aには、軸方向に連通する連結ネジ孔44が所定間隔毎に周方向に沿って穿設され、且つ同じく軸方向に連通する接続孔42が隣接する連結ネジ孔44同士の間に穿設されている。この取付部40aの内径側の下面には、開口部20aの上端の外径より若干大径に切り欠かれた設置部28が形成されている。設置部28には、開口部20aの上端に向けて垂直に開口する環状の溝18が設けられているとともに、この溝18には、環状のシール部材6が収納されている。更に、取付部40aの内径側の上面には、上方に向けて開口する環状の溝19が設けられているとともに、この溝19に、環状のシール部材7が収納されている。   As shown in FIG. 1 (b), a connecting screw hole 44 communicating in the axial direction is formed in the mounting portion 40a along the circumferential direction at predetermined intervals, and a connecting hole 42 also communicating in the axial direction is provided. It is drilled between adjacent connecting screw holes 44. On the lower surface on the inner diameter side of the mounting portion 40a, an installation portion 28 is formed that is cut out to be slightly larger than the outer diameter of the upper end of the opening 20a. The installation portion 28 is provided with an annular groove 18 that opens vertically toward the upper end of the opening 20 a, and the annular seal member 6 is accommodated in the groove 18. Furthermore, an annular groove 19 that opens upward is provided on the upper surface on the inner diameter side of the mounting portion 40 a, and the annular seal member 7 is accommodated in the groove 19.

また、図1(c)に示されるように係止部40bは、半円状の割部材40c、40cを接続することによって環状を成しており、割部材40c、40cの両端には、それぞれ接続部40dが設けられている。この割部材40c、40cの内径側の下面には、開口部20aの凹溝26に向けて嵌合される突片29、29を有している。更に、係止部40bには、取付部40aの連結ネジ孔44と対応する位置に連結孔45が穿設され、且つ取付部40aの接続孔42と対応する位置に接続孔43が穿設されている。   Further, as shown in FIG. 1 (c), the locking portion 40b has an annular shape by connecting semicircular split members 40c and 40c, and both ends of the split members 40c and 40c are respectively connected to both ends. A connecting portion 40d is provided. On the lower surface on the inner diameter side of the split members 40c, 40c, there are projecting pieces 29, 29 fitted toward the concave groove 26 of the opening 20a. Further, the engaging portion 40b is provided with a connecting hole 45 at a position corresponding to the connecting screw hole 44 of the attaching portion 40a, and a connecting hole 43 at a position corresponding to the connecting hole 42 of the attaching portion 40a. ing.

開口部20aに対して取付具40を設置する手順について詳しく説明すると、開口部20aの凹溝26に対して割部材40c、40cの突片29、29を嵌合し、割部材40c、40cの各接続部40dを位置合わせした後、ボルト・ナット30を挿通して緊締することで環状の係止部40bを形成する。係止部40bを凹溝26に対して設置した後、開口部20aの被設置部27に対して取付部40aの設置部28を載置組付けする。これにより、設置部28と被設置部27とをシール部材6が密封状にシールする。   The procedure for installing the fixture 40 to the opening 20a will be described in detail. The projecting pieces 29 and 29 of the split members 40c and 40c are fitted into the concave groove 26 of the opening 20a, and the split members 40c and 40c After aligning the connecting portions 40d, the bolts and nuts 30 are inserted and tightened to form an annular locking portion 40b. After the locking portion 40b is installed in the concave groove 26, the installation portion 28 of the attachment portion 40a is placed and assembled to the installation portion 27 of the opening 20a. Thereby, the sealing member 6 seals the installation part 28 and the installation part 27 in a sealed manner.

そして、取付部40aの連結ネジ孔44と係止部40bの連結孔45との位置合わせを行い、取付部40aと係止部40bとに亘って挿入される連結ボルト46を各連結ネジ孔44、連結孔45に挿通して緊締する。したがって、被設置部27は、設置部28と突片29、29との間で狭圧されるようになり、これによって取付具40が筐体20に対して強固に設置されるようになる。   Then, the connecting screw hole 44 of the mounting portion 40a and the connecting hole 45 of the locking portion 40b are aligned, and the connecting bolt 46 inserted across the mounting portion 40a and the locking portion 40b is connected to each connecting screw hole 44. Then, it is inserted into the connecting hole 45 and tightened. Accordingly, the installation portion 27 is tightly pressed between the installation portion 28 and the projecting pieces 29, 29, whereby the fixture 40 is firmly installed on the housing 20.

このように、取付具40が、開口部20aの上端から外面に亘って設けられた被設置部27に設置されることで、開口部20aの内方領域を用いることなく、この領域を後述するカッタ及びプラグ9用に確保できるばかりか、取付具40を筐体20の外面に着脱し易い。また、取付具40を、筐体20の開口部20aから取り外すことで、開口部20a自体にケース体3とのフランジ部を設けること無く、外方への張出を抑え小型化した開口部20aを備えた筐体20とすることができるばかりか、掘削作業等における干渉を防止できる。更には、取り外した取付具40を別の作業具の導入の際に再使用することができる。   As described above, the mounting tool 40 is installed on the installed portion 27 provided from the upper end of the opening 20a to the outer surface, and this region will be described later without using the inner region of the opening 20a. Not only can it be secured for the cutter and plug 9, but the attachment 40 can be easily attached to and detached from the outer surface of the housing 20. In addition, by removing the fixture 40 from the opening 20a of the housing 20, the opening 20a can be reduced in size by suppressing outward protrusion without providing a flange with the case body 3 in the opening 20a itself. In addition to being able to provide the housing 20 having the above, interference in excavation work or the like can be prevented. Furthermore, the removed fixture 40 can be reused when another work tool is introduced.

次に、図2に示されるように、取付具40の取付部40aに対して、筐体20の開口部20aと連通するケース体3を密封状に取り付ける。このケース体3は、下端にフランジ3a,上端にフランジ3bをそれぞれ備えており、筐体20内を閉塞可能な作業弁14を更に有している。フランジ3aには、接続孔42、43と対応した位置にフランジネジ孔32が穿設されている。取付具40の取付部40aに対してケース体3を載置した後、接続孔42、43からフランジネジ孔32に向けて取付部40a、係止部40b及びフランジ3aに亘って挿通される接続ボルト15を挿入して緊締することで、取付具40とケース体3とが接続され、取付部40aとフランジ3aとに介設されたシール部材7によって密封状に接続される。   Next, as shown in FIG. 2, the case body 3 communicating with the opening 20 a of the housing 20 is attached to the attachment portion 40 a of the attachment 40 in a sealed manner. The case body 3 includes a flange 3 a at the lower end and a flange 3 b at the upper end, and further includes a work valve 14 that can close the inside of the housing 20. A flange screw hole 32 is formed in the flange 3 a at a position corresponding to the connection holes 42 and 43. After the case body 3 is placed on the mounting portion 40a of the mounting tool 40, the connection is inserted through the mounting portion 40a, the locking portion 40b, and the flange 3a from the connection holes 42 and 43 toward the flange screw hole 32. By inserting the bolt 15 and tightening it, the fixture 40 and the case body 3 are connected, and the seal member 7 interposed between the attachment portion 40a and the flange 3a is connected in a sealing manner.

そして、ここでは図示しないが、ケース体3の上端のフランジ3bには、内空構造の筒状部材が密封状に取り付けられ、当該筒状部材の内部に流体管1を切断する切断装置が取り付けられる。当該切断装置は、筐体20内において所定の作業を行う作業具であるカッタを備え、当該カッタが前記筒状部材、ケース体3及び筐体20の内部を進行移動することで流体管1が切断される。その後、前記カッタを流体管1の切片とともに上方へ引き戻し、作業弁14によって筐体20内を一時的に閉塞する。その後、前記筒状部材及び前記切断装置が取り外されることで流体管1の不断流状態での切断作業が完了する。   Although not shown here, a cylindrical member having an inner air structure is hermetically attached to the flange 3b at the upper end of the case body 3, and a cutting device for cutting the fluid pipe 1 is attached to the inside of the cylindrical member. It is done. The cutting device includes a cutter that is a working tool for performing a predetermined operation in the housing 20, and the fluid pipe 1 is moved by the cutter moving forward in the cylindrical member, the case body 3, and the housing 20. Disconnected. Thereafter, the cutter is pulled back together with the section of the fluid pipe 1, and the inside of the housing 20 is temporarily closed by the work valve 14. Thereafter, the tubular member and the cutting device are removed to complete the cutting operation of the fluid pipe 1 in an uninterrupted state.

次に、図2に示されるようにケース体3の上端のフランジ3bには、前記筒状部材に替えて、外部に開口した窓部16aを2箇所に備えた筒胴部材16が、ケース体3に連通して上方に設置される。一方の窓部16aは、延設部2b及びケース体3の軸方向と略直交方向に開口しているとともに、他方の窓部16aは、当該一方の窓部16aに対抗して開口している。さらに、窓部16a,16aには、各々の開口を密封状に閉塞する外蓋16b、16bがそれぞれ固定具16cによって着脱可能に固定されている。   Next, as shown in FIG. 2, a cylindrical body member 16 provided with two windows 16 a opened to the outside is provided on the flange 3 b at the upper end of the case body 3 in place of the tubular member. 3 is connected to the upper side. One window portion 16a opens in a direction substantially orthogonal to the axial direction of the extending portion 2b and the case body 3, and the other window portion 16a opens in opposition to the one window portion 16a. . Further, outer covers 16b and 16b for sealing the respective openings in a sealing manner are detachably fixed to the windows 16a and 16a by fixing tools 16c, respectively.

この筒胴部材16の上端に対して、先端に流体管1内の流体を遮断する本発明の制流体であるプラグ9を取り付け可能な軸部材8と、軸部材8を先端に取り付ける移動体17と、移動体17を軸方向に駆動する駆動手段(図示略)を支持する支持部材11と、から構成された導入装置5が密封状に設置される。この移動体17と軸部材8とは、ボルト・ナット23によって接続されており、前記駆動手段によって移動体17が筐体20内に進退移動するようになり、この移動体17の進退移動に伴って軸部材8も連動するようになっている。   With respect to the upper end of the cylindrical body member 16, a shaft member 8 to which a plug 9 which is a fluid control of the present invention for blocking the fluid in the fluid pipe 1 can be attached to the tip, and a moving body 17 to which the shaft member 8 is attached to the tip. And a support member 11 that supports driving means (not shown) for driving the moving body 17 in the axial direction, and the introducing device 5 is installed in a sealed manner. The moving body 17 and the shaft member 8 are connected by bolts and nuts 23, and the moving body 17 moves forward and backward in the housing 20 by the driving means, and the moving body 17 moves forward and backward. The shaft member 8 is also interlocked.

この導入装置5の組み立ての際には、先ず軸部材8の先端とプラグ9とを軸部材8の軸方向に所定の本数螺挿される六角孔ボルト33によって連結し、その後、軸部材8の先端における側周面に対して、プラグ9を保持する本発明における保持具である中蓋12を回転可能に挿入設置する。すなわち、中蓋12は、プラグ9の直上に位置するようになる。   When assembling the introduction device 5, first, the tip of the shaft member 8 and the plug 9 are connected by a hexagonal hole bolt 33 screwed in a predetermined number in the axial direction of the shaft member 8, and then the tip of the shaft member 8. The inner lid 12 which is a holder in the present invention for holding the plug 9 is inserted and installed in a rotatable manner with respect to the side peripheral surface. That is, the inner lid 12 is positioned immediately above the plug 9.

この中蓋12に対して、内部に軸部材8が挿入される略円筒状の係合具21を取り外し可能に接続する。この係合具21は、先端が外径方向に張り出される鍔部21aと成っており、この鍔部21aには、中蓋12の各ネジ孔部12cに対応するネジ孔がそれぞれ設けられている。この各ネジ孔と各ネジ孔部12cとにそれぞれ固定ボルト34を螺挿することで中蓋12に係合具21が取り外し可能に固定される。このように係合具21は、鍔部21aに中蓋12が設置され、中蓋12から軸部材8の軸方向に延設されている。   A substantially cylindrical engaging tool 21 into which the shaft member 8 is inserted is detachably connected to the inner lid 12. The engaging tool 21 is formed with a flange portion 21a with a tip projecting in the outer diameter direction. The flange portion 21a is provided with a screw hole corresponding to each screw hole portion 12c of the inner lid 12. Yes. The engaging tool 21 is detachably fixed to the inner lid 12 by screwing a fixing bolt 34 into each screw hole and each screw hole portion 12c. As described above, the engaging tool 21 is provided with the inner lid 12 on the flange portion 21 a and extends from the inner lid 12 in the axial direction of the shaft member 8.

また、係合具21の後端は、外径方向から軸部材8に向けて螺設された貫通孔22が所定間隔に離間して配置されている。この貫通孔22に取り外し可能な留め具31を螺挿することで軸部材8と係合具21とを接続する。このことで、軸部材8と中蓋12とは、係合具21を介して一体と成っている。   Further, at the rear end of the engagement tool 21, through holes 22 screwed from the outer diameter direction toward the shaft member 8 are arranged at a predetermined interval. The shaft member 8 and the engagement tool 21 are connected by screwing a detachable fastener 31 into the through hole 22. Thus, the shaft member 8 and the inner lid 12 are integrated with each other via the engagement tool 21.

その後、このようにプラグ9、係合具21、及び中蓋12が接続された軸部材8は、ボルト・ナット23によって移動体17と接続される。したがって、軸部材8、プラグ9、係合具21、及び中蓋12が軸方向に連動して移動するようになっており、且つ後述するように係合具21及び中蓋12は、軸部材8、プラグ9とは独立して、周方向に連動して回動するようになっている。中蓋12についてより詳しく説明すると、図4(a)に示されるように、中蓋12は、開口部2aに内包される外径を有し、軸方向に貫通するネジ孔部12cが略90度間隔ごとに離間して4箇所に穿設された環状の基盤12aと、基盤12aから嵌合溝部24の各導入溝24bに向けてそれぞれ突設された4つの嵌合部12bとから成っている。この嵌合部12bは、開口部20aの導入溝24bを介し環状溝24a内に嵌入するようになっている。   Thereafter, the shaft member 8 to which the plug 9, the engagement tool 21, and the inner lid 12 are connected in this way is connected to the moving body 17 by bolts and nuts 23. Therefore, the shaft member 8, the plug 9, the engagement tool 21, and the inner lid 12 move in conjunction with the axial direction, and the engagement tool 21 and the inner lid 12 are connected to the shaft member as will be described later. 8. Independently of the plug 9, it rotates in conjunction with the circumferential direction. The inner lid 12 will be described in more detail. As shown in FIG. 4A, the inner lid 12 has an outer diameter contained in the opening 2a, and a screw hole portion 12c penetrating in the axial direction is substantially 90. The ring-shaped base 12a is formed at four positions apart from each other at intervals of four degrees, and four fitting portions 12b are provided so as to project from the base 12a toward the respective introduction grooves 24b of the fitting groove 24. Yes. The fitting portion 12b is fitted into the annular groove 24a through the introduction groove 24b of the opening 20a.

図3に示されるように、図示しない前記駆動手段によって軸部材8を筐体20内に進行させることによって、軸部材8と一体になったプラグ9、中蓋12及び係合具21がケース体3と取付具40とを介して流体管1の切断箇所に向けて導入される。このときには、図4(a)に示されるように、各嵌合部12bを各導入溝24bに嵌合するように配設した後、その状態を保ったまま流体管1の切断箇所に向けてプラグ9を進行させる。   As shown in FIG. 3, when the shaft member 8 is advanced into the housing 20 by the driving means (not shown), the plug 9, the inner lid 12 and the engagement tool 21 integrated with the shaft member 8 are made into the case body. 3 and the fixture 40 are introduced toward the cut portion of the fluid pipe 1. At this time, as shown in FIG. 4 (a), after each fitting portion 12b is disposed so as to be fitted into each introduction groove 24b, it is directed toward the cut portion of the fluid pipe 1 while maintaining the state. The plug 9 is advanced.

このプラグ9は、延設部2bの内周面とプラグ9との間に当接する密封部材9aと、この密封部材9aに連続して、凸部25の上面及び筐体20の内側面とプラグ9との間に当接する密封部材9bと、を備えている。密封部材9aによって筐体20内の流体が筐体20の外方へ漏出することを防止することができるとともに、密封部材9bによって図3における切断された左右の流体管1同士の流路を遮断することができる。   The plug 9 includes a sealing member 9a that abuts between the inner peripheral surface of the extending portion 2b and the plug 9, and an upper surface of the convex portion 25 and an inner side surface of the housing 20 that are connected to the sealing member 9a. 9 is provided. The sealing member 9a can prevent the fluid in the casing 20 from leaking out of the casing 20, and the sealing member 9b blocks the flow path between the cut left and right fluid pipes 1 in FIG. can do.

プラグ9は、流体管1の切断箇所に到達した後も、軸部材8によって流体管1内の流体圧に対抗して筐体20の内方に向けて押圧され続けている。このようにプラグ9が押圧され続けた状態で、窓部16a,16aの外蓋16b、16bを取り外し、この開放された窓部16a,16aを介し軸部材8及び係合具21の留め具31を取り外す。さらに、留め具31が取り外された貫通孔22に対して、留め具31より外径方向に延設されるハンドルボルト35を螺挿する。このハンドルボルト35を操作して軸部材8の軸回りに係合具21を所定角度回動させる。係合具21を回動させる際には、プラグ9が軸部材8によって筐体20の内方に向けて押圧され続けていることによって、プラグ9が流体圧で筐体20の外方に押し上げられることが防がれ、これにより環状溝24aの内面における開口部20a側に中蓋12が当接しないようになっているため、係合具21が回動し易くなっている。これによって、図4(b)に示されるように、各嵌合部12bが周方向に導入溝24bと異なる所定位置に配置されるようになり、各嵌合部12bがこの環状溝24aに対し軸方向に係止されるようになる。   The plug 9 continues to be pressed toward the inside of the housing 20 against the fluid pressure in the fluid pipe 1 by the shaft member 8 even after reaching the cutting location of the fluid pipe 1. In this state where the plug 9 continues to be pressed, the outer lids 16b and 16b of the window portions 16a and 16a are removed, and the shaft member 8 and the fastener 31 of the engaging tool 21 are opened via the opened window portions 16a and 16a. Remove. Further, a handle bolt 35 extending in the outer diameter direction from the fastener 31 is screwed into the through hole 22 from which the fastener 31 has been removed. By operating the handle bolt 35, the engagement tool 21 is rotated around the axis of the shaft member 8 by a predetermined angle. When the engaging tool 21 is rotated, the plug 9 continues to be pressed toward the inside of the housing 20 by the shaft member 8, so that the plug 9 is pushed upward by the fluid pressure. This prevents the inner lid 12 from coming into contact with the opening 20a side of the inner surface of the annular groove 24a, so that the engagement tool 21 can be easily rotated. As a result, as shown in FIG. 4B, each fitting portion 12b is arranged at a predetermined position different from the introduction groove 24b in the circumferential direction, and each fitting portion 12b is located with respect to the annular groove 24a. It comes to be locked in the axial direction.

このように、係合具21の鍔部21aから軸方向に離間した箇所においてハンドルボルト35を操作することで、中蓋12を筐体20内に係合できるため、中蓋12の係合操作をし易い。さらに、中蓋12は、回動するだけで開口部20aの内面に環状溝24aに係合できるため、係合操作が容易である。   As described above, the inner lid 12 can be engaged with the inside of the housing 20 by operating the handle bolt 35 at a position spaced apart from the collar portion 21a of the engaging tool 21 in the axial direction. Easy to do. Furthermore, since the inner lid 12 can be engaged with the annular groove 24a on the inner surface of the opening 20a only by rotating, the engagement operation is easy.

次に、図5に示されるように、軸部材8から移動体17を取り外し、支持部材11、前記した駆動手段及び筒胴部材16を取り外す。そして、ケース体3を取付部40a及び係止部40bから取り外し、固定ボルト34を中蓋12及び係合具21から取り外すとともに六角孔ボルト33を軸部材8の先端及びプラグ9から取り外す。更に、軸部材8と係合具21とをプラグ9及び中蓋12から取り外す。上記したように、係合具21を中蓋12とともに進行させる際には外れてしまうことなく、中蓋12を筐体20に係合した後の係合具21を、軸部材8の退行方向に移動するだけで容易に取り外すことができる。そして、取付部40a及び係止部40bを筐体20から取り外す。この際には、上述したように中蓋12が開口部20aにおける環状溝24aに係止されており、この中蓋12によってプラグ9が筐体20内に係止されているため、筐体20内に設置されたプラグ9に負荷される流体管1内の流体の圧力に対抗でき、プラグ9が筐体20から外れることが無く、密封状態が維持される。   Next, as shown in FIG. 5, the movable body 17 is removed from the shaft member 8, and the support member 11, the driving means and the cylinder body member 16 are removed. Then, the case body 3 is removed from the attachment portion 40a and the locking portion 40b, the fixing bolt 34 is removed from the inner lid 12 and the engagement tool 21, and the hexagon socket bolt 33 is removed from the tip of the shaft member 8 and the plug 9. Further, the shaft member 8 and the engagement tool 21 are removed from the plug 9 and the inner lid 12. As described above, the engaging tool 21 after engaging the inner lid 12 with the housing 20 is not removed when the engaging tool 21 is advanced together with the inner lid 12, and the retracting direction of the shaft member 8 is used. It can be easily removed simply by moving to. Then, the attachment portion 40 a and the locking portion 40 b are removed from the housing 20. At this time, as described above, the inner lid 12 is locked in the annular groove 24a in the opening 20a, and the plug 9 is locked in the casing 20 by the inner lid 12, so that the casing 20 The pressure of the fluid in the fluid pipe 1 loaded on the plug 9 installed therein can be counteracted, and the plug 9 is not detached from the housing 20 and the sealed state is maintained.

その後、図6に示されるように、中蓋12の中央部に嵌合する断面視下向き略凸形状の押蓋36が設置され、この押蓋36とプラグ9とに亘って略垂直に固定ネジ36aを所定の本数挿入して固定する。このことで、各固定ネジ36aを締め込むことによってプラグ9と押蓋36とで中蓋12が狭圧され、この中蓋12が移動不能に位置決めされ、周方向に回転することが防止される。つまり、中蓋12の各嵌合部12bが周方向に導入溝24bと異なる所定位置に固定され、開口部20aの内面から中蓋12及びプラグ9が外れることが防止される。   After that, as shown in FIG. 6, a substantially convex push-down cover 36 that is fitted in the center of the inner lid 12 and is downwardly viewed in cross section is installed, and the fixing screw is fixed substantially vertically across the push-lid 36 and the plug 9. A predetermined number of 36a are inserted and fixed. As a result, by tightening the fixing screws 36a, the inner lid 12 is narrowed by the plug 9 and the push lid 36, and the inner lid 12 is positioned so as not to move and is prevented from rotating in the circumferential direction. . That is, each fitting portion 12b of the inner lid 12 is fixed at a predetermined position different from the introduction groove 24b in the circumferential direction, and the inner lid 12 and the plug 9 are prevented from being detached from the inner surface of the opening 20a.

その後、図7に示されるように、筐体20の開口部20aの上端には、開口部20aを閉塞する上蓋13が設置される。上蓋13は、断面視略コ字状を成しており、開口部20aの上端に外嵌されるように形成されている。開口部20aに上蓋13を外嵌設置した後、上蓋13の端部と開口部20aの外周面とが当接する部位を溶接する。このことによって、開口部20aの開口から筐体20内に夾雑物等が混入することが防止されるばかりか、開口部20aの外方に張り出す接続部やネジ等の別段の部材を用いることなく上蓋13を設置できる。流体管1の切断箇所に対してプラグ9の設置が完了する。尚、この上蓋は、開口部の上端に外嵌されるものに限らず、開口部が密封状に閉塞されるものであればよい。更に尚、このような上蓋13を特段に設けず、押蓋を設置後、当該押蓋の外周面を筐体の内周面に対して溶接等により密封することで、当該押蓋のみによって開口部を閉塞してもよい。   Thereafter, as shown in FIG. 7, the upper lid 13 that closes the opening 20 a is installed at the upper end of the opening 20 a of the housing 20. The upper lid 13 is substantially U-shaped in cross section and is formed so as to be fitted on the upper end of the opening 20a. After the upper lid 13 is fitted and installed in the opening 20a, the part where the end of the upper lid 13 and the outer peripheral surface of the opening 20a abut is welded. This not only prevents foreign substances from entering the housing 20 from the opening of the opening 20a, but also uses a separate member such as a connection portion or a screw that protrudes outward from the opening 20a. And the upper lid 13 can be installed. Installation of the plug 9 is completed at the cut location of the fluid pipe 1. The upper lid is not limited to the one fitted on the upper end of the opening, but may be any one as long as the opening is closed in a sealed manner. Furthermore, such an upper lid 13 is not particularly provided, and after the push lid is installed, the outer peripheral surface of the push lid is sealed to the inner peripheral surface of the housing by welding or the like, so that only the push lid is opened. The part may be closed.

以上説明したように、本発明の制流体保持方法は、流体管1に対し密封状に取り付けられる筐体20と、筐体20に連通するケース体3と、プラグ9が接続され、軸方向に進退移動することによってプラグ9をケース体3を介し筐体20内に設置する軸部材8と、筐体20内に設置されたプラグ9を保持する中蓋12と、中蓋12に取外し可能に設けられ、中蓋12を筐体20に係合させる係合具21とを用い、筐体20内に不断流状態で設置されたプラグ9を筐体20に保持する制流体保持方法であって、中蓋12及び中蓋12に設けられた係合具21を軸部材8によってプラグ9とともに筐体20に向けて導入し、軸部材8によりプラグ9とともに筐体20内に設置された中蓋12を、係合具21によって筐体20に係合し、係合具21を中蓋12から取り外す。これによれば、軸部材8に接続されたプラグ9とともに、このプラグ9を保持する中蓋12を軸部材8によって筐体20内に設置し、この中蓋12を係合具21により筐体20に係合できるため、筐体20の外方に突出する箇所がない。また、筐体20の外方からプラグ9を保持する別段の工程を経ること無く、プラグ9の設置後すぐに筐体20に保持できるばかりか、プラグ9を保持した中蓋12を筐体20に残して係合具21を取り外すことで、プラグ9設置後の筐体20を小型化できる。   As described above, in the fluid damping holding method of the present invention, the casing 20 that is hermetically attached to the fluid pipe 1, the case body 3 that communicates with the casing 20, and the plug 9 are connected to each other in the axial direction. By moving forward and backward, the shaft member 8 that installs the plug 9 in the housing 20 via the case body 3, the inner lid 12 that holds the plug 9 installed in the housing 20, and the inner lid 12 can be removed. A fluid control holding method for holding a plug 9 installed in the casing 20 in an uninterrupted flow state in the casing 20 using an engaging tool 21 that is provided and engages the inner lid 12 with the casing 20. The inner lid 12 and the engaging member 21 provided on the inner lid 12 are introduced into the housing 20 together with the plug 9 by the shaft member 8, and the inner lid installed in the housing 20 together with the plug 9 by the shaft member 8. 12 is engaged with the housing 20 by the engagement tool 21, and the engagement tool 21 is engaged. Removed from the inner lid 12. According to this, together with the plug 9 connected to the shaft member 8, the inner lid 12 that holds the plug 9 is installed in the housing 20 by the shaft member 8, and the inner lid 12 is placed in the housing by the engaging tool 21. 20 can be engaged, and there is no portion protruding outward of the housing 20. In addition, the plug 9 can be held in the casing 20 immediately after the plug 9 is installed without going through a separate step of holding the plug 9 from the outside of the casing 20, and the inner lid 12 holding the plug 9 can be held in the casing 20. The housing 20 after the plug 9 is installed can be reduced in size by removing the engaging tool 21.

また、本発明の係合具は、前記制流体保持方法の際に用いられる係合具21であって、係合具21の鍔部21aが中蓋12に取外し可能に設けられ、軸部材8の軸方向に延設されており、軸部材8によってプラグ9及び中蓋12とともに筐体20に向けて導入され、軸部材8によりプラグ9とともに筐体20内に設置された中蓋12を筐体20に係合するようになっている。これによれば、軸部材8に接続されたプラグ9とともに、このプラグ9を保持する中蓋12を軸部材8によって筐体20内に設置し、この中蓋12を係合具21により筐体20に係合できるため、筐体20の外方に突出する箇所がない。また、筐体20の外方からプラグ9を保持する別段の工程を経ること無く、プラグ9の設置後すぐに筐体20に保持できるばかりか、プラグ9を保持した中蓋12を筐体20に残して係合具21を取り外すことで、取り外した係合具21を別の制流体保持方法の際に再使用することができる。   Further, the engaging tool of the present invention is an engaging tool 21 used in the fluid damping holding method, and the collar portion 21a of the engaging tool 21 is detachably provided on the inner lid 12, and the shaft member 8 is provided. The shaft member 8 is introduced toward the housing 20 together with the plug 9 and the inner lid 12 by the shaft member 8, and the inner lid 12 installed in the housing 20 together with the plug 9 by the shaft member 8 is installed in the housing. Engage with the body 20. According to this, together with the plug 9 connected to the shaft member 8, the inner lid 12 that holds the plug 9 is installed in the housing 20 by the shaft member 8, and the inner lid 12 is placed in the housing by the engaging tool 21. 20 can be engaged, and there is no portion protruding outward of the housing 20. In addition, the plug 9 can be held in the casing 20 immediately after the plug 9 is installed without going through a separate step of holding the plug 9 from the outside of the casing 20, and the inner lid 12 holding the plug 9 can be held in the casing 20. In this case, the removed engagement tool 21 can be reused in another method of controlling the fluid damping.

次に、実施例2に係る流体管内の圧力が高い等、制流体を強固に保持する必要がある場合の制流体保持方法及びその際に用いられる係合具につき、図8を参照して説明する。尚、前記実施例と同一構成で重複する構成の説明を省略する。   Next, with reference to FIG. 8, a description will be given of a fluid control holding method and an engagement tool used at that time when the fluid control needs to be held firmly, such as when the pressure in the fluid pipe according to the second embodiment is high. To do. The description of the same configuration as that of the above embodiment is omitted.

前記実施例と同様の工程により、筐体20内における流体管1の切断箇所にプラグ9が設置され、このプラグ9が中蓋12及び押蓋36によって流体管1の切断箇所に保持されている。   The plug 9 is installed at the cutting position of the fluid pipe 1 in the housing 20 by the same process as in the above embodiment, and this plug 9 is held at the cutting position of the fluid pipe 1 by the inner lid 12 and the push lid 36. .

このような状態において、凹溝26に対して、割部材40c、40cの突片29、29を嵌合し、割部材40c、40cの各接続部40dを位置合わせした後、ボルト・ナット30を挿通して緊締することで環状の係止部40bを再度形成する。   In such a state, the projecting pieces 29 and 29 of the split members 40c and 40c are fitted into the concave groove 26 and the connecting portions 40d of the split members 40c and 40c are aligned, and then the bolts and nuts 30 are attached. The annular locking portion 40b is formed again by inserting and tightening.

この係止部40bには、開口部20aに外嵌される上蓋13’が密封状に取り付けられる。より具体的に説明すると、この上蓋13’は、係止部40bにおける各連結孔45とそれぞれ対応して軸方向に連通する連結ネジ孔44’が穿設されており、この連結ネジ孔44’は、上蓋13’における外周縁に設けられている。当該外周縁は、係止部40bに向けて延出しており、これにより、上蓋13’は、断面視略コ字形状となっている。更に、上蓋13’の下面には、開口部20aの上端と当接する部位に環状のシール部材38が埋設されているとともに、略中央部に押蓋36に向けて押圧する2条の押圧片37が形成されている。   An upper lid 13 ′ fitted on the opening 20 a is attached to the locking portion 40 b in a sealed manner. More specifically, the upper lid 13 ′ is provided with connecting screw holes 44 ′ communicating with the connecting holes 45 in the locking portion 40 b in the axial direction, and the connecting screw holes 44 ′. Is provided on the outer peripheral edge of the upper lid 13 '. The outer peripheral edge extends toward the locking portion 40b, whereby the upper lid 13 'has a substantially U shape in cross section. Further, an annular seal member 38 is embedded in a lower surface of the upper lid 13 ′ at a portion that comes into contact with the upper end of the opening 20 a, and two pressing pieces 37 that press toward the push lid 36 at a substantially central portion. Is formed.

このように構成された上蓋13’と係止部40bとは、各連結ネジ孔44’と各連結孔45とにそれぞれ連結ボルト46が挿通されて緊締される。これによって、上蓋13’及び係止部40bは、被設置部27を狭圧して強固に設置され、且つシール部材38は、開口部20aの上端と当接し、筐体20内が密封状にシールされる。更に、押圧片37は、押蓋36に対して当接して設置されており、各連結ボルト46が緊締されることで押蓋36を押圧した状態となる。これによって、プラグ9による上方への反力及び流体管1の流体圧に対して強固にプラグ9を保持することができる。   The upper lid 13 ′ and the locking portion 40 b configured in this way are tightened by inserting the connecting bolts 46 into the connecting screw holes 44 ′ and the connecting holes 45, respectively. As a result, the upper lid 13 ′ and the locking portion 40b are firmly installed by narrowing the installation portion 27, and the seal member 38 abuts on the upper end of the opening 20a, so that the inside of the housing 20 is sealed in a sealed manner. Is done. Further, the pressing piece 37 is installed in contact with the pressing lid 36, and the pressing bolt 36 is pressed by tightening each connecting bolt 46. Thereby, the plug 9 can be firmly held against the upward reaction force by the plug 9 and the fluid pressure of the fluid pipe 1.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。   Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

例えば、前記実施例では、制流体としてプラグ9を適用しているが、例えば、バタフライ弁、切換弁、ゲート弁、緊急遮断弁などの各種バルブであってもよく、多岐に亘る態様に応用することができる。   For example, although the plug 9 is applied as a fluid control in the above-described embodiment, for example, various valves such as a butterfly valve, a switching valve, a gate valve, and an emergency shut-off valve may be used and applied to various aspects. be able to.

例えば、前記実施例では、中蓋12に押蓋36を嵌合しているが、これに限らず、例えば中蓋の基盤が流体管の内径と略同一形状を成し、当該基盤から嵌合部が突設されてもよい。   For example, in the above-described embodiment, the push lid 36 is fitted to the inner lid 12. However, the present invention is not limited to this. For example, the base of the inner lid has substantially the same shape as the inner diameter of the fluid pipe and is fitted from the base. A part may be provided.

1 流体管
3 ケース体
3a フランジ
8 軸部材
9 プラグ(制流体)
12 中蓋(保持具)
12b 嵌合部
13、13’ 上蓋
16 筒胴部材
16a 窓部
20 筐体
20a 開口部
21 係合具
21a 鍔部
24 嵌合溝部
26 凹溝
27 被設置部
28 設置部
29 突片
35 ハンドルボルト
36 押蓋
37 押圧片
40 取付具
40a 取付部(フランジ部)
40b 係止部
1 Fluid Pipe 3 Case Body 3a Flange 8 Shaft Member 9 Plug (Fluid Control)
12 Inner lid (holder)
12b Fitting part 13, 13 'Upper lid 16 Cylindrical member 16a Window part 20 Housing 20a Opening part 21 Engagement tool 21a Fitting part 24 Fitting groove part 26 Concave groove 27 Installation part 28 Installation part 29 Projection piece 35 Handle bolt 36 Press lid 37 Pressing piece 40 Mounting tool 40a Mounting portion (flange portion)
40b Locking part

Claims (5)

流体管に対し密封状に取り付けられる筐体と、前記筐体に連通するケース体と、制流体が接続され、軸方向に進退移動することによって前記制流体を前記ケース体を介し前記筐体内に設置する軸部材と、前記筐体内に設置された前記制流体を保持する保持具と、前記保持具に取外し可能に設けられ、該保持具を前記筐体に係合させる係合具とを用い、前記筐体内に不断流状態で設置された前記制流体を該筐体に保持する制流体保持方法であって、
前記保持具及び該保持具に設けられた前記係合具を、前記軸部材によって前記制流体とともに前記筐体に向けて導入し、
前記軸部材により前記制流体とともに前記筐体内に設置された前記保持具を、前記係合具によって前記筐体に係合し、
前記係合具を前記保持具から取り外すことを特徴とする制流体保持方法。
A housing attached in a sealed manner to the fluid pipe, a case body communicating with the housing, and a fluid control is connected, and the fluid is transferred into the housing via the case body by moving forward and backward in the axial direction. A shaft member to be installed, a holder for holding the fluid control installed in the casing, and an engagement tool that is detachably provided on the holder and engages the holder with the casing. And a fluid control holding method for holding the fluid control installed in the casing in a continuous flow state in the casing,
Introducing the holding tool and the engaging tool provided on the holding tool toward the casing together with the fluid control by the shaft member;
The holding member installed in the casing together with the fluid control by the shaft member is engaged with the casing by the engaging tool,
A fluid damping holding method, wherein the engagement tool is removed from the holder.
前記係合具は、該係合具の先端部が前記保持具に設けられ、前記軸部材の軸方向に延設されていることを特徴とする請求項1に記載の制流体保持方法。 2. The fluid damping holding method according to claim 1, wherein a tip end portion of the engaging tool is provided in the holding tool and extends in an axial direction of the shaft member. 前記係合具は、前記保持具に対し前記軸部材の退行方向に移動することで、前記保持具から取外し可能となっていることを特徴とする請求項1または2に記載の制流体保持方法。   3. The fluid damping holding method according to claim 1, wherein the engaging tool can be detached from the holding tool by moving in the retracting direction of the shaft member with respect to the holding tool. . 前記保持具は、前記開口部内で回動することで該開口部内面と係合する中蓋であることを特徴とする請求項1ないし3のいずれかに記載の制流体保持方法。   4. The fluid damping holding method according to claim 1, wherein the holder is an inner lid that rotates in the opening to engage with an inner surface of the opening. 5. 流体管に対し密封状に取り付けられる筐体と、前記筐体に連通するケース体と、制流体が接続され、軸方向に進退移動することによって前記制流体を前記ケース体を介し前記筐体内に設置する軸部材と、前記筐体内に設置された前記制流体を保持する保持具とを用い、前記筐体内に不断流状態で設置された前記制流体を該筐体に保持する制流体保持方法の際に用いられる係合具であって、
該係合具の先端部が前記保持具に取外し可能に設けられ、前記軸部材の軸方向に延設されており、
前記軸部材によって前記制流体及び前記保持具とともに前記筐体に向けて導入され、
前記軸部材により前記制流体とともに前記筐体内に設置された前記保持具を該筐体に係合するようになっていることを特徴とする係合具。
A housing attached in a sealed manner to the fluid pipe, a case body communicating with the housing, and a fluid control is connected, and the fluid is transferred into the housing via the case body by moving forward and backward in the axial direction. Using a shaft member to be installed and a holder for holding the fluid control installed in the casing, the fluid control holding method for holding the control fluid installed in the casing in an uninterrupted state in the casing An engagement tool used in the case of
A distal end portion of the engagement tool is detachably provided on the holder and extends in the axial direction of the shaft member;
The shaft member is introduced toward the housing together with the fluid control and the holder,
An engagement tool configured to engage the holding tool installed in the casing together with the fluid control by the shaft member.
JP2011265091A 2011-12-02 2011-12-02 Fluid control holding method and engagement tool used at that time Active JP5823273B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011265091A JP5823273B2 (en) 2011-12-02 2011-12-02 Fluid control holding method and engagement tool used at that time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011265091A JP5823273B2 (en) 2011-12-02 2011-12-02 Fluid control holding method and engagement tool used at that time

Publications (2)

Publication Number Publication Date
JP2013117264A JP2013117264A (en) 2013-06-13
JP5823273B2 true JP5823273B2 (en) 2015-11-25

Family

ID=48711967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011265091A Active JP5823273B2 (en) 2011-12-02 2011-12-02 Fluid control holding method and engagement tool used at that time

Country Status (1)

Country Link
JP (1) JP5823273B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6942840B2 (en) * 2019-01-29 2021-09-29 コスモ工機株式会社 Valve device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892916A (en) * 1972-03-10 1973-12-01
JP2572303Y2 (en) * 1992-07-14 1998-05-20 コスモ工機株式会社 Attaching and detaching mechanism of the valve body insertion device used for constant water works

Also Published As

Publication number Publication date
JP2013117264A (en) 2013-06-13

Similar Documents

Publication Publication Date Title
WO2019116617A1 (en) Method of removing valve in fluid pipe line structure, fluid pipe line structure, and valve device
CA2782607C (en) Device for work implementation without stopping flow, and method for work implementation without stopping flow
JP4993977B2 (en) Valve device for removing pipe connecting member from branch and method for removing the same
JP7430771B2 (en) How to remove fluid tubes
JP6434586B2 (en) Valve device mounting structure, valve device mounting method and valve device removal method
JP6556502B2 (en) Installation body mounting method
JP5823273B2 (en) Fluid control holding method and engagement tool used at that time
JP5964574B2 (en) Work tool introduction method and fixture used at that time
JP2016098920A (en) Pipe connection member installation device
JP6275553B2 (en) Valve device connection structure and valve body removal method using the structure
JP6396140B2 (en) Valve body mounting structure
JP5944705B2 (en) Branch opening communication method
JP6994432B2 (en) Pipeline construction jigs and pipeline construction methods
JP5882513B2 (en) Work tool installation method
JP2018119559A (en) Flow channel forming device
KR20170141868A (en) Sealing device for repairing pipeline
JP2012189111A (en) Method for removing fluid device in water service pipe system and removal operation jig used in the method
JP4660186B2 (en) Joint holding member and instrument comprising joint holding member and joint member
JP7371909B2 (en) How to replace fluid equipment
JP6280893B2 (en) Valve body removal device and valve body removal method
JP7485563B2 (en) Pipe cutting method and device
JP6721619B2 (en) Valve body removing device and valve body removing method
JP2013185682A (en) Anti-corrosion device and anti-corrosion method for pipe cut surface
JP6738288B2 (en) Connection member attaching/detaching method and attaching/detaching device
JP2011163464A (en) Rust prevention device and method therefor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20141003

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20150511

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150706

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150728

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150729

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151006

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151007

R150 Certificate of patent or registration of utility model

Ref document number: 5823273

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250