JPH0242342A - Method and apparatus for inspecting inside of piping and its apparatus - Google Patents
Method and apparatus for inspecting inside of piping and its apparatusInfo
- Publication number
- JPH0242342A JPH0242342A JP19364688A JP19364688A JPH0242342A JP H0242342 A JPH0242342 A JP H0242342A JP 19364688 A JP19364688 A JP 19364688A JP 19364688 A JP19364688 A JP 19364688A JP H0242342 A JPH0242342 A JP H0242342A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- piping
- endoscope
- inspection
- outlet
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 12
- 238000007689 inspection Methods 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005553 drilling Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 16
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 9
- 238000004080 punching Methods 0.000 abstract description 9
- 238000005192 partition Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000008674 spewing Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水道管とか石油輸送管、或は、ガス管と云っ
た各種流体流通用配管（以下単に配管と云う）の内部状
態を検査する検査方法と、その検査に使用する装置に関
する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is for inspecting the internal condition of various fluid distribution pipes (hereinafter simply referred to as pipes) such as water pipes, oil transport pipes, or gas pipes. The present invention relates to an inspection method and an apparatus used for the inspection.
例えば、鋳鉄製の水道用配管を長年使用すると。 For example, if you use cast iron water pipes for many years.
第１図の様に配管Ｔの内面に所謂錆こぶＸが生じて赤水
を発生したり、遂には通水能力を減退させて配管として
の機能を失わせる場合もあるから、鈷こぶＸが発生した
配管Ｔはこれをクリーニング及びライニングして再生し
たり、或は、クリーニングした配管の内部にポリパイプ
を押し込むことによって更生していた。As shown in Figure 1, so-called rust galls X may occur on the inner surface of the pipe T, producing red water, and may eventually reduce the water flow capacity and cause the pipe to lose its function, resulting in the formation of a bulge X. The pipe T that has been cleaned has been regenerated by cleaning and lining it, or by pushing a polypipe inside the cleaned pipe.
しかし、錆こぶＸの発生具合は配管Ｔの外部からはＬｌ
視確認できないから、従来は、赤水とか通水量の減少が
生じた時点でその発生を確認したり、業者の長年の感に
よって推察していたから、対処が遅れて腐食とか漏水、
或は、水質上の諸問題が発生したり、逆に錆こぶＸが発
生していないのに間違えて加工処理してしまう場合もあ
ったりして、配管Ｔの外から錯こぶＸの発生を正確に検
査できる方ａ；及び装置の開発が強く望まれていた。However, the degree of occurrence of rust lumps X is Ll from the outside of piping T.
Because it cannot be visually confirmed, conventionally, the occurrence of red water or a decrease in water flow was confirmed when it occurred, or the contractor guessed based on long-standing intuition.
Alternatively, problems with water quality may occur, or conversely, rust lumps X may be processed by mistake even though no rust lumps have occurred. There is a strong desire for the development of a method and device that can perform accurate inspection.
そこで、工業用に開発された内視鏡（ファイバースコー
プ）を配管Ｔの内部に挿入して、錆こぶＸの発生具合を
観察する検査方法が開発された。Therefore, an inspection method was developed in which an endoscope (fiberscope) developed for industrial use is inserted into the interior of the pipe T to observe the extent to which rust lumps X have formed.
この検査方法によれば、対物レンズとライトガイドを設
けたファイバーの先端部を配￥！Ｔの内部に挿入すれば
、配管Ｔ内の状況をスコープ画面上に写し出し、錆こぶ
Ｘの発生具合を直接目視確認することができるから、パ
イプクリーニング・ライニングの各処理を適切に講じる
ことが可能である。According to this inspection method, the tip of the fiber is equipped with an objective lens and a light guide. By inserting it inside the pipe T, the situation inside the pipe T will be displayed on the scope screen, allowing you to directly visually check the occurrence of rust lumps X, allowing you to take appropriate measures for pipe cleaning and lining. It is.
所が、配管Ｔの内部に内視鏡を挿入すると成ると、配管
′ｒの検査箇所にファイバー用の挿入孔を穿孔する必要
があり、更に、挿入したファイバー部分が流水の水圧に
よって屈曲したり、破損する場合があるため、上記挿入
孔からの水の噴出とファイバーの屈曲等を防止するには
、検査の間中配管Ｔを断水させる必要があり、使用者に
断水による迷惑を掛けるたり、断水を知らせたり給水車
を手配する等、面倒な手続を必要とする問題があった。However, when inserting an endoscope into the inside of the pipe T, it is necessary to drill an insertion hole for the fiber at the inspection point of the pipe 'r, and there is also the possibility that the inserted fiber part may be bent by the water pressure of the flowing water. In order to prevent water from gushing out from the insertion hole and bending of the fibers, it is necessary to cut off the water from the pipe T during the inspection, which may cause trouble to users due to the water cut. There were problems that required complicated procedures, such as notifying people of water outages and arranging water trucks.
また、上記の各問題は、石油輸送管とかガス管と云った
その他の各種流体用配管に付いても同様に発生していた
。Furthermore, the above-mentioned problems have also occurred in other types of fluid piping, such as oil transport pipes and gas pipes.
従って本発明の技術的課題は、配管を断水させたり、そ
の他流体の流通を遮断させることなく内視鏡にて管路内
を検査して、錯こぶ等の発生状態を正確に確認すること
ができる検査方法と、この検査に用いる検査装置を提供
することにある。Therefore, the technical problem of the present invention is to accurately confirm the occurrence of knots, etc. by inspecting the inside of the pipe with an endoscope without cutting off the water in the pipe or otherwise blocking the flow of fluid. The purpose of the present invention is to provide an inspection method that can be used and an inspection device used for this inspection.
上記の技術的課題を解決するために講じた手段中、検査
方法を構成する手段は以下の如くである。Among the measures taken to solve the above technical problem, the means constituting the inspection method are as follows.
（１）取出口に仕切弁を設けた割丁字管を配管に固定し
、上記の取出口に取付けた穿孔機のカッターを回転して
配管に検査孔を穿孔すること。(1) A split pipe with a gate valve provided at the outlet is fixed to the pipe, and a cutter of a punching machine attached to the outlet is rotated to drill an inspection hole in the pipe.
（２）内部に耐圧・耐水構造で直管タイプの内視鏡を気
密状態に嵌込んだスリーブを上記の取出口に取付けるこ
と。(2) A sleeve with a pressure-resistant and water-resistant structure and a straight pipe type endoscope fitted in an airtight manner is attached to the above-mentioned outlet.
（３）この内視鏡をスリーブ内で摺動調節することによ
って、先端に設けた対物レンズの部分を上記の検査孔よ
り配管内部に挿入して検査すること。(3) By slidingly adjusting this endoscope within the sleeve, the objective lens portion provided at the tip is inserted into the interior of the pipe through the above-mentioned inspection hole for inspection.
また、上記の検査装置を構成する手段は以下の如くであ
る。Further, the means for configuring the above inspection device is as follows.
（４）配管に取付ける割丁字管の取出口に対して接続自
在に構成したスリーブの内部に、下端部に対物レンズを
取付け、上端部には接眼レンズを取付けた耐圧・耐水構
造で直管タイプの内視鏡を気密状態に、而も上下作動調
節自在に嵌込むこと。(4) Straight pipe type with pressure and water resistant construction, with an objective lens attached to the lower end and an eyepiece attached to the upper end inside the sleeve, which can be freely connected to the outlet of the divided tube attached to the piping. To fit an endoscope in an airtight state and to freely adjust vertical movement.
但しここに於いて取出口に仕切弁を設けた割丁字管とは
、上下に２分割した管受用のプレートをポル１−の締付
によって配管の周囲に固若でき、且つ、一方の管受メタ
ルに連設した取付口の途中に、仕切弁（スルースバルブ
）を開閉作動自在に取付けたものを意味する。However, in this case, a divided pipe with a gate valve installed at the outlet is one in which a plate for the pipe holder that is divided into upper and lower halves can be fixed around the pipe by tightening the pole 1-, and one of the pipe holders is It means a gate valve (sluice valve) installed in the middle of a mounting hole connected to the metal so that it can be opened and closed.
上記の各手段は以下の如く作用する。 Each of the above means operates as follows.
■検査方法を構成する上記（１）の要素は、穿孔機のカ
ッターを用いて配管の内部検査個所に検査孔を穿孔でき
ると共に、穿孔に当っては割丁字管の取出口には穿孔機
が取付けられ、また、穿孔後は仕切弁にて取出口を閉じ
ることができるから、作業中に取出口から配管内の流体
が流出することがなく、従って、配管に対する穿孔作業
を断水又は遮断させずに行うことを可能にする。■The element (1) above that constitutes the inspection method is that an inspection hole can be punched at the internal inspection point of the pipe using a cutter of a punching machine, and when drilling, a punching machine is used at the outlet of the divided pipe. Since the outlet can be closed with a gate valve after drilling, the fluid inside the pipe will not flow out from the outlet during work, and therefore the drilling work on the pipe will not be interrupted or interrupted. make it possible to do so.
（魯同じく上記（２）の要素は、内視鏡を用いて配管の
内部を検査するに当って、割丁字管の取出口には上記の
内視鏡を気密状態に嵌込んだスリーブを取付けるため、
内視鏡の挿入に当って取出口の仕切弁を開いても、取出
口から配管内の流体が噴出する心配がなく、加えて、内
視鏡として耐圧・耐水構造で直管タイプのものを使用す
るから、配管内を流れる流体の圧力によって内視鏡が屈
曲したり破損される心配もないから、従って、内視鏡に
よる検査に当っても、配管を断水又は遮断させることな
く行うことを可能にする。(Similarly, the element (2) above is that when inspecting the inside of piping using an endoscope, a sleeve into which the endoscope is fitted airtight is installed at the outlet of the split pipe. For,
Even if you open the gate valve at the outlet when inserting the endoscope, there is no need to worry about the fluid in the piping spewing out from the outlet.In addition, the endoscope is a straight pipe type with a pressure and water resistant structure. Since the endoscope is used, there is no need to worry about the endoscope being bent or damaged by the pressure of the fluid flowing inside the piping. Therefore, even when inspecting with an endoscope, it is possible to perform inspections without cutting off or cutting off the piping. enable.
■同じく上記（３）の要素は、内視鏡による配管の内部
検査は、スリーブ内より配管の内部に挿入した直管型内
視鏡の先端部に設けた対物レンズを透して直接行うため
、この内視鏡をスリーブ内で上下に摺動調節することに
よって、配管内の適切な位置に対物レンズをセットして
、鎖こぶの有無等を正確に検査することを可能にする。■Similarly, the factor (3) above is that internal inspection of piping with an endoscope is performed directly through the objective lens installed at the tip of the straight tube endoscope inserted into the piping from inside the sleeve. By sliding this endoscope up and down within the sleeve, the objective lens can be set at an appropriate position within the pipe, making it possible to accurately inspect the presence or absence of a chain hump.
■更に、上述した検査装置を構成する上記（４）の要素
は、割下字管の取出口に対して、内部に内視鏡を気密状
態に嵌込んだスリーブを直接接続する関係で、検査時に
取出口から配管内の流体が流出する心配がなく、更に、
内視鏡自体も流体によって屈曲されたり破損されない様
に耐圧・耐水構造で、且つ、直管タイプに構成している
から、従って、配管の内部検査を断水又は遮断せずに行
うことができると共に、先端部に対物レンズを設けた直
管タイプの内視鏡を、スリーブに対して長手方向（上下
方向）に調節作動自在に構成したから、検査する配管の
径に合わせて内視鏡を上下に作動！＋！］節して、対物
レンズの部分を常に検査に適した位置（例えば配管の中
央部）にセットして、正確な検査を可能とする。■Furthermore, the above-mentioned element (4) constituting the above-mentioned inspection device is such that the sleeve, in which the endoscope is fitted in an airtight manner, is directly connected to the outlet of the split tube. There is no need to worry about the fluid in the piping flowing out from the outlet, and
The endoscope itself has a pressure-resistant and water-resistant structure so that it will not be bent or damaged by fluid, and is constructed with a straight pipe type. Therefore, internal inspections of piping can be performed without water cut-off or interruption. A straight tube type endoscope with an objective lens at the tip is configured to be adjustable in the longitudinal direction (up and down) with respect to the sleeve, so the endoscope can be moved up and down to suit the diameter of the pipe to be inspected. It works! +! ) to always set the objective lens at a position suitable for inspection (for example, in the center of the pipe) to enable accurate inspection.
以上の如くであるから、上記の手段によって上述した技
術的課題を解決し、前記従来の技術の問題点を解消する
ことができる。As described above, the above-mentioned technical problem can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.
（実施例〕
以下に、上述した本発明に係る配管の内部検査方法及び
その装置の好適な実施例を添付した図面と共に詳細に説
明する。(Embodiments) Hereinafter, preferred embodiments of the above-mentioned internal pipe inspection method and device according to the present invention will be described in detail with reference to the accompanying drawings.
第１図と第２図は割下字管１を配管Ｔの検査箇所に取付
けている状態を示した斜視図とその正断面図であって、
割下字管１は上下の割プレート２゜３をボルト４・・・
で締付けることによって配（ｉ？Ｔの検査箇所に固定さ
れる。尚、第１図の配管Ｔの管路面には錯こぶＸが発生
した状況が示されているが、第２図以降では説明の便宜
上これを省略している。５は上面側割プレート２に連設
した取出口で、その先端口６の内面には雌ネジ６ａが形
成されている。また、５ａは取出口５の内部通路で。FIG. 1 and FIG. 2 are a perspective view and a front sectional view showing a state in which the split-shaped pipe 1 is attached to an inspection location of the piping T,
For the split tube 1, connect the upper and lower split plates 2゜3 with bolts 4...
It is fixed at the inspection point of the pipe (i?T) by tightening it with the . This is omitted for convenience. 5 is an outlet connected to the upper side split plate 2, and the inner surface of the tip opening 6 is formed with a female thread 6a. In the aisle.
５ｂは上記プレート２に開口した流通口、７はパツキン
、８は上記内部通路５ａを開閉する仕切弁（スルースバ
ルブ）、９は仕切弁８のナツト８ａに螺合して仕切弁８
を開閉作動するネジ軸、１０はこのネジ軸９を回転する
ナツト体を示す。5b is a communication port opened in the plate 2, 7 is a gasket, 8 is a gate valve (sluice valve) for opening and closing the internal passage 5a, and 9 is screwed into a nut 8a of the gate valve 8.
10 indicates a nut body that rotates this screw shaft 9.
第２図に於いて１１は先端部１１ａを上記割下字管１の
取出口５に設けた先端口６にネジ込んで取付ける不断水
分岐用穿孔機（ポーラ−、ドリラ、又は、ホールソーラ
ーとも云う）であって、１３と１４はこの穿孔機１１の
回転軸１２に取付けたドリルとカッターで、第２図はこ
れ等ドリル１３とカッター１４によって配管Ｔに検査孔
Ｔ” ａを穿孔し終えた時の状態を示したものであって
、穿孔時には先端口６に取付けた穿孔機１１が流体の流
出を防止し、穿孔終了後は、仕切弁８を閉じて流体の流
出を防止する。In FIG. 2, reference numeral 11 denotes a water-stop branching drilling machine (also known as a polar, driller, or whole solar) whose tip 11a is screwed into the tip 6 provided at the outlet 5 of the above-mentioned split-shaped pipe 1. 13 and 14 are a drill and a cutter attached to the rotating shaft 12 of this drilling machine 11, and FIG. During drilling, the drilling machine 11 attached to the tip port 6 prevents fluid from flowing out, and after drilling is completed, the gate valve 8 is closed to prevent fluid from flowing out.
第３図１士本発明に係る検査装置を用いて配管Ｔ内を検
査している状態を説明した側面図であって、検査に当っ
ては上記検査孔Ｔａの穿孔を終えた割下字管１の取出口
５に符号２０で全体的に示した検査筒を取付けて検査す
る。Fig. 3 is a side view illustrating the state in which the inside of the pipe T is being inspected using the inspection device according to the present invention, and during the inspection, the undercut pipe after the inspection hole Ta has been drilled; An inspection tube generally indicated by reference numeral 20 is attached to the outlet 5 of No. 1 for inspection.
検査筒２０は第３図並びに第４−図に示す如く円筒状に
形成したスリーブ２１の上端部にハウジング体２２を取
付け、また、下端部には接続用のカップリング２６を取
付けると共に、内部に１土下端部に対物レンズ２７ａと
ライトガイド（図示せず）を取付け、周面には角ネジ２
７ｂを形成した耐圧・耐水構造で、而も、直管タイプの
内視鏡２７を上下作動自在に嵌込んだ仕組に成っていて
、上記ハウジング体２２の内側には、内壁面に上記内視
鏡２７の角ネジ２７ｂに螺合するネジ溝２２ａが形成さ
れている。２３は上記内視鏡２７のロッド周面に形成し
た角ネジ２７ｂに係合自在な締付ネジで、この締付ネジ
２３の締付によって内視′ｖｔ２７のロッドが固定され
る仕組に成っている。As shown in FIGS. 3 and 4, the inspection tube 20 has a housing body 22 attached to the upper end of a sleeve 21 formed into a cylindrical shape, a coupling 26 for connection attached to the lower end, and a 1 Attach an objective lens 27a and a light guide (not shown) to the bottom end of the soil, and attach a square screw 2 to the circumference.
The housing body 22 has a pressure-resistant and water-resistant structure having a pressure-resistant and water-resistant structure formed with the inner wall 7b, and has a structure in which a straight tube type endoscope 27 is fitted so as to be able to move up and down freely. A screw groove 22a is formed to be screwed into a square screw 27b of the mirror 27. Reference numeral 23 denotes a tightening screw that can freely engage with a square screw 27b formed on the circumferential surface of the rod of the endoscope 27, and the rod of the endoscope 27 is fixed by tightening this tightening screw 23. There is.
更に図中、２８はハウジング体２２より突出した上記内
視鏡２７のロッド上端部に取付けたソケットであって、
このソケット２８の両側面すこは、光源装Ｙ１３３側の
光源チューブ３２に取付けた接続プラグ３１用の接続口
２８ａと、回転ハンドル３０用のネジ透穴２８ｂが設け
られ、上面には接眼レンズ２９ ａを嵌込んだ噴口２９
が設けられている。Furthermore, in the figure, 28 is a socket attached to the upper end of the rod of the endoscope 27 protruding from the housing body 22,
A connection port 28a for the connection plug 31 attached to the light source tube 32 on the light source unit Y133 side and a threaded hole 28b for the rotation handle 30 are provided on both sides of the socket 28, and an eyepiece 29a is provided on the top surface. spout 29 fitted with
is provided.
尚、上述した耐圧・耐水構造で直管タイプの内視鏡２７
は、そのロッド部分を例えばステンレス管とかその他防
錆加工を施した金属管を用いて、先端の対物レンズ２７
ａの取付部を含めて全体が耐圧・耐水構造に造られてい
るが、更に対物レンズ２７ａの部分の耐圧・耐水性を増
強するために。In addition, the above-mentioned pressure-resistant and water-resistant structure and straight tube type endoscope 27
The rod part is made of, for example, a stainless steel tube or other rust-proofed metal tube, and the objective lens 27 at the tip is attached.
The entire structure including the mounting part a is made to be pressure and water resistant, but in order to further increase the pressure and water resistance of the objective lens 27a.
第５図並びに第６図の如く先端部にアクリル製の透明な
検査窓４０ａを備えた保護ヘッド４０を取付ける場合も
ある。As shown in FIGS. 5 and 6, a protective head 40 having a transparent inspection window 40a made of acrylic at the tip may be attached.
更に第４図乃至第６図に於いて、２６ａは前記カップリ
ング２６の下端口に形成した接続ネジで、これを前記割
子字管１の先端口６内にネジ込むと、第３図の如く検査
筒２０の全体を割子字管１の上面部に直立させた状態で
取付けることができる。Furthermore, in FIGS. 4 to 6, 26a is a connecting screw formed at the lower end of the coupling 26, and when this is screwed into the tip opening 6 of the splitter tube 1, as shown in FIG. Thus, the entire inspection tube 20 can be attached to the upper surface of the splitter tube 1 in an upright state.
また、２６ｂは水洩れ防止用のＯリングを示す。Further, 26b indicates an O-ring for preventing water leakage.
本発明で使用する検査装置は以上述べた如き構成である
から、使用に当っては配管Ｔの検査箇所に固定した割子
字管１の取出口５（具体的には先端口６）に、スリーブ
２１の下端カップリング２６をネジ込んで接続すると共
に、取出口５の仕切弁８を開く。この時、配管′ｒ内の
流体は穿孔形成した検査孔Ｔａより通路５ａを通って接
続したスリーブ２１へ流れるが、カップリング２６と内
視鏡２７の間はＯリング２６ｂによってシールされてい
るため、流体の外部流出が防止される。Since the inspection device used in the present invention has the configuration as described above, in use, it is necessary to insert a The lower end coupling 26 of the sleeve 21 is screwed in and connected, and the gate valve 8 of the outlet 5 is opened. At this time, the fluid in the pipe 'r flows from the test hole Ta through the passage 5a to the connected sleeve 21, but since the space between the coupling 26 and the endoscope 27 is sealed by the O-ring 26b. , fluid leakage to the outside is prevented.
以上の様にスリーブ２１の取付けが終わったら、ソケッ
ト２８に取付けた操作ハンドル３０で内視鏡の全体を回
転して、ネジ溝２２ａと角ネジ２７ｂの噛合により、内
視鏡２７の先端対物レンズ２７ｂの部分を第６図の如く
取出口５の内部から検査孔′Ｉ″ｎを通して配管Ｔの内
部中央に突出し、その突出位置を固定ネジ２３の締付に
よって固定する。After the sleeve 21 has been attached as described above, the entire endoscope is rotated using the operation handle 30 attached to the socket 28, and the end objective lens of the endoscope 27 is engaged with the screw groove 22a and the square screw 27b. The portion 27b is projected from the inside of the outlet 5 through the inspection hole 'I''n to the center of the interior of the pipe T as shown in FIG. 6, and its projected position is fixed by tightening the fixing screw 23.
次に、ソケット２８の接続口２８ａに光源装置３３側に
連なる光源チューブ３２の接続プラグ３１を接続して、
内視鏡２７内に光を供給すれば、第３図の様に曜日２９
の接眼レンズ２９ａを透しテ配Ｍ Ｔの内部を直接線＜
１１察でき、これにて錆こぶＸ等の発生の有無等を正確
に検査することができる。Next, connect the connection plug 31 of the light source tube 32 connected to the light source device 33 side to the connection port 28a of the socket 28,
If light is supplied into the endoscope 27, the day of the week 29 will be displayed as shown in FIG.
A direct line <
11 can be detected, and with this, it is possible to accurately inspect the presence or absence of rust lumps X, etc.
検査終了後は、スリーブ２１を先端口６がら取２外すと
共に仕切弁８を閉じれば、流体の流出を防止できる。After the inspection is completed, the sleeve 21 is removed from the tip port 6 and the gate valve 8 is closed to prevent fluid from flowing out.
本発明は以上述べた如くであって、内視鏡を用いて配管
の内部を検査する場合に、いちいち配管を断水させたり
遮断することなく検査できるから、使用者に断水及び濁
水、又は、遮断による迷惑を掛ける心配がなく、また、
断水及び遮断を知らせる各種の手続が不要で工事も簡単
であるから、工事用資材とか労力が節減できる経済性を
発揮できる利点を備えると共に、内視鏡は耐圧・耐水構
造で、而も、直管タイプに構成されていて、先端の対物
レンズの部分を直接配管の内部に挿入できるため、配管
の内部を正確に検査できる利点も発揮できるものであっ
て、構成が簡単で容易に実施できる点と相俟って、水道
管とが石油輸送管、或は。As described above, when inspecting the inside of piping using an endoscope, the present invention can be inspected without cutting off or shutting off the piping each time. There is no need to worry about causing trouble due to
Since there is no need for various procedures to notify of water outages and shut-offs, and the construction is simple, it has the advantage of being economical in terms of saving construction materials and labor. It is configured as a tube type, and the objective lens at the tip can be inserted directly into the pipe, so it has the advantage of being able to accurately inspect the inside of the pipe, and is simple in configuration and easy to carry out. In conjunction with this, water pipes are oil transport pipes, or.
ガス管と云った各種流体用配管の内部検査に用いて狗に
好適である。Suitable for dogs and used for internal inspection of various fluid piping such as gas pipes.
第１図は割子字管を配管に取付けた状態の斜視図で、第
２図はその正断面図、第３図は本発明に係る検査装置の
全体構成を示した側面図、第４図は本発明の要部の構成
を示した一部断面正面図で、第５図は検査ヘッドの取付
状態を示した正面図、第６図は検査時の状態を示した正
断面図である。
Ｔは配管、Ｔａは検査孔、１は割子字管、５は取出口、
６は先端口、８は仕切弁、１１は穿孔機。
１４はカッター、２１はスリーブ、２２はハウジング体
、２２ａはネジ溝、２７は直管タイプの内視鏡、２７ａ
は対物レンズ、２７ｂは角ネジ、２９ａは接眼レンズ。
特許出願人 フジテコム株式会社
第
■
図
第
図
第
図
第
図
第
図
７ａFig. 1 is a perspective view of the splitter pipe attached to the piping, Fig. 2 is a front sectional view thereof, Fig. 3 is a side view showing the overall configuration of the inspection device according to the present invention, and Fig. 4 5 is a partially sectional front view showing the structure of the main part of the present invention, FIG. 5 is a front view showing the installation state of the inspection head, and FIG. 6 is a front sectional view showing the state during inspection. T is piping, Ta is inspection hole, 1 is split tube, 5 is outlet,
6 is a tip opening, 8 is a gate valve, and 11 is a drilling machine. 14 is a cutter, 21 is a sleeve, 22 is a housing body, 22a is a screw groove, 27 is a straight tube type endoscope, 27a
is an objective lens, 27b is a square screw, and 29a is an eyepiece. Patent applicant Fuji Tecom Co., Ltd. Figure 7a
Claims (2)
、上記の取出口に取付けた穿孔機のカッターを回転して
配管に検査孔を穿孔する一方、内部に耐圧・耐水構造で
直管タイプの内視鏡を気密状態に嵌込んだスリーブを上
記の取出口に取付け、この内視鏡をスリーブ内で摺動調
節することによって、先端に設けた対物レンズの部分を
上記の検査孔より配管内部に挿入して検査することを特
徴とする配管の内部検査方法。(1) A split pipe with a gate valve installed at the outlet is fixed to the pipe, and the cutter of the drilling machine attached to the above outlet is rotated to drill an inspection hole in the pipe, while the interior has a pressure-resistant and water-resistant structure. Attach a sleeve into which a straight tube type endoscope is airtightly fitted into the above-mentioned outlet, and by slidingly adjusting the endoscope within the sleeve, the objective lens part provided at the tip can be inserted into the above-mentioned outlet. A method for inspecting the inside of piping, which is characterized by inserting the pipe into the interior of the pipe through an inspection hole.
在に構成したスリーブの内部に、下端部に対物レンズを
取付け、上端部には接眼レンズを取付けた耐圧・耐水構
造で直管タイプの内視鏡を気密状態に、而も上下作動調
節自在に嵌込んだことを特徴とする配管の内部検査装置
。(2) Straight pipe type with pressure and water resistant construction, with an objective lens attached to the lower end and an eyepiece attached to the upper end of the sleeve, which is configured to be freely connectable to the outlet of the split tube that is attached to the piping. An internal inspection device for piping, characterized in that an endoscope is fitted in an airtight manner and can be moved up and down freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63193646A JPH0627709B2 (en) | 1988-08-03 | 1988-08-03 | Internal inspection device for piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63193646A JPH0627709B2 (en) | 1988-08-03 | 1988-08-03 | Internal inspection device for piping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242342A true JPH0242342A (en) | 1990-02-13 |
| JPH0627709B2 JPH0627709B2 (en) | 1994-04-13 |
Family
ID=16311407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63193646A Expired - Fee Related JPH0627709B2 (en) | 1988-08-03 | 1988-08-03 | Internal inspection device for piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627709B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210975A (en) * | 1998-01-19 | 1999-08-06 | Js Corp | Connecting fitting and piping system of building |
| JP2009189910A (en) * | 2008-02-12 | 2009-08-27 | Masakazu Yamamoto | Method for cleaning inside of pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60113207A (en) * | 1983-11-04 | 1985-06-19 | ソシエテ ドプチーク プレシジヨン エレクトロニツク エ メカニツク ソペレム | Optical device for internal inspection of cylindrical chambers |
| JPH0411158U (en) * | 1990-05-17 | 1992-01-30 |
-
1988
- 1988-08-03 JP JP63193646A patent/JPH0627709B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60113207A (en) * | 1983-11-04 | 1985-06-19 | ソシエテ ドプチーク プレシジヨン エレクトロニツク エ メカニツク ソペレム | Optical device for internal inspection of cylindrical chambers |
| JPH0411158U (en) * | 1990-05-17 | 1992-01-30 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210975A (en) * | 1998-01-19 | 1999-08-06 | Js Corp | Connecting fitting and piping system of building |
| JP2009189910A (en) * | 2008-02-12 | 2009-08-27 | Masakazu Yamamoto | Method for cleaning inside of pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627709B2 (en) | 1994-04-13 |
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