JPH0575061B2 - - Google Patents
Info
- Publication number
- JPH0575061B2 JPH0575061B2 JP60240981A JP24098185A JPH0575061B2 JP H0575061 B2 JPH0575061 B2 JP H0575061B2 JP 60240981 A JP60240981 A JP 60240981A JP 24098185 A JP24098185 A JP 24098185A JP H0575061 B2 JPH0575061 B2 JP H0575061B2
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- main body
- tube
- pipe
- television camera
- 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 - Lifetime
Links
- 238000003384 imaging method Methods 0.000 claims description 24
- 238000007689 inspection Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 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)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Closed-Circuit Television Systems (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
この発明は径の小さな水道管、下水管、ガス
管、電力通信ケーブル管、給水、排水管等の検査
に用いられる管内検査用テレビカメラ装置に関す
る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a television camera device for inspecting inside pipes used for inspecting small-diameter water pipes, sewer pipes, gas pipes, power communication cable pipes, water supply pipes, drainage pipes, etc. .
［発明の技術的背景］
径の小さな被検査管にテレビジヨンカメラ装置
を挿入して、管内の腐蝕、傷などを調べる装置と
して、管内検査用テレビカメラ装置がある。従来
の装置は、比較的大形であり、管の径が小さい場
合は管内に挿入することができなかつたが、最近
は半導体を利用した固体撮像装置が開発され、カ
メラ装置自体は極めて小形となり、径の小さな管
にも挿入することが可能となつた。[Technical Background of the Invention] A television camera device for inspecting pipe interiors is a device for inserting a television camera device into a pipe to be inspected having a small diameter to examine corrosion, damage, etc. inside the pipe. Conventional devices were relatively large and could not be inserted into tubes with small diameters, but solid-state imaging devices using semiconductors have recently been developed, and the camera devices themselves have become extremely small. It has become possible to insert it into small-diameter tubes.
第４図は、管内検査装置の構成を示す図であ
り、被検査管１１内には撮像部本体１２が挿入さ
れる。撮像部本体１２はカメラ制御ケーブル１３
を通じて地上のモニタ１４及び制御装置１５に接
続されている。カメラ制御ケーブル１３は、撮像
部本体１２に電源、制御信号を供給し、また撮像
部本体１２からの映像信号をモニタ部に導入する
ためのものである。 FIG. 4 is a diagram showing the configuration of the tube inspection device, in which the imaging section main body 12 is inserted into the tube 11 to be inspected. The imaging unit main body 12 has a camera control cable 13
It is connected to a ground monitor 14 and a control device 15 through the ground. The camera control cable 13 is for supplying power and control signals to the imaging section main body 12, and for introducing a video signal from the imaging section main body 12 to the monitor section.
次に１６は操作棒であり、撮像部本体１２を、
被検査管１１に対して挿入したり引出したり、あ
るいは回転させたりするためのものであり、作業
者によつて操作される。 Next, 16 is an operating rod, which controls the imaging unit main body 12.
It is inserted into or pulled out from the tube 11 to be inspected, or rotated, and is operated by an operator.
［背景技術の問題点］
上記の検査装置によると、直管を検査するには
操作棒１６の操作により容易に撮像部本体１２を
移動させることができる。しかしながら、管が曲
がつている場合、また曲がり部分が多い管に対し
て撮像部本体１２を挿入するには、上記の操作棒
１６では不可能であつた。特に管が直角に曲がつ
た管の場合は、この曲がり部分で撮像部本体１２
の挿入を停止せざるをえなかつた。[Problems with Background Art] According to the above-mentioned inspection apparatus, the imaging section main body 12 can be easily moved by operating the operating rod 16 in order to inspect a straight pipe. However, when the tube is curved, or when the imaging section main body 12 is inserted into a tube with many curved parts, it is impossible to use the operation rod 16 described above. In particular, if the tube is bent at a right angle, the imaging unit main body 12
I had no choice but to stop inserting it.
［発明の目的］
この発明は、上記の事情に鑑みてなされたもの
で、撮像部本体の支持効果を損うことなく、屈曲
管への侵入を容易にし得るとともに、操作上の安
全性も備えた管内検査用テレビカメラ装置を提供
することを目的とする。[Object of the Invention] The present invention has been made in view of the above circumstances, and it is possible to easily penetrate into a bent tube without impairing the supporting effect of the imaging unit main body, and it also provides operational safety. The purpose of the present invention is to provide a television camera device for pipe inspection.
［発明の概要］
この発明は上記の目的を達成するために、例れ
ば第１図に示すように、カメラ制御ケーブルを保
護する管の構成として、一端が前記撮像部本体に
取付けられ屈曲性を有し、前記撮像部本体の重量
により屈曲する程度の弾性を持つた第１の可とう
管と、この第１の可とう管を連続するようにこの
第１の可とう管の他端に接続され、前記第１の可
とう管よりも剛性を有し変形を保持可能な第２の
可とう管とを用いた構成とするものである。[Summary of the Invention] In order to achieve the above-mentioned object, the present invention, for example, as shown in FIG. and a first flexible tube having elasticity to the extent that it can be bent by the weight of the imaging section main body; A second flexible tube that is connected to the first flexible tube and has more rigidity than the first flexible tube and can retain deformation is used.
［発明の実施例］
以下この発明の一実施例を図面を参照して説明
する。[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.
第１図において２１は、軸方向に流線形の外形
をした撮像部本体であり、この撮像部本体２１と
第４図に示すようなモニタ１４及び制御装置１５
とはカメラ制御ケーブル２２によつて接続されて
いる。ここでカメラ制御ケーブル２２はその外部
が第１、第２の可とう管２３，２４で保護されて
いる。第１の可とう管２３は、一端が撮像部本体
２１に取付けられ、他端がコネクタ２５を介して
第２の可とう管２４の一端に接続されている。第
１の可とう管２３の長さは８乃至30cm程度であ
り、その断面形状は同図ｃに示すような形状であ
る。つまりこの第１の可とう管２３は、屈曲性を
有し、前記撮像部本体２１の重量により屈曲する
程度の弾性を持つ。そして、幅方向の断面がほぼ
Ｓ形の帯状の金属板が軸方向に螺旋状に巻かれ、
かつ幅方向に隣合う部分はその幅の約２分の１部
分の２重の重なりを持つように形成されている。
またその重なり部分は軸方向にがたつきを有す
る。次に第２の可とう管２４は、前記第１の可と
う管２３よりも剛性を有し変形した場合はその変
形を保持可能であり、その断面構造は同図ｂに示
すように構成されている。即ち、幅方向の断面が
Ｓ形の帯状の金属板が軸方向に螺旋状に巻かれ、
幅方向に隣合う部分はその幅の約２分の１部分が
互いに巻き込み４重の重なり部を構成している。
そしてある一定の曲がり角度（例えば90度）以上
は曲がることはない。 In FIG. 1, reference numeral 21 denotes an imaging section main body having a streamlined outer shape in the axial direction, and this imaging section main body 21 and a monitor 14 and a control device 15 as shown in FIG.
and is connected by a camera control cable 22. Here, the outside of the camera control cable 22 is protected by first and second flexible tubes 23 and 24. The first flexible tube 23 has one end attached to the imaging section main body 21 and the other end connected to one end of the second flexible tube 24 via a connector 25. The length of the first flexible tube 23 is approximately 8 to 30 cm, and its cross-sectional shape is as shown in FIG. In other words, the first flexible tube 23 has flexibility and elasticity to the extent that it can be bent by the weight of the imaging section main body 21 . Then, a band-shaped metal plate having an approximately S-shaped cross section in the width direction is wound spirally in the axial direction.
In addition, adjacent portions in the width direction are formed so as to have a double overlap of approximately one half of the width thereof.
Moreover, the overlapping portion has wobbling in the axial direction. Next, the second flexible tube 24 is more rigid than the first flexible tube 23 and can maintain the deformation when it is deformed, and its cross-sectional structure is constructed as shown in FIG. ing. That is, a band-shaped metal plate having an S-shaped cross section in the width direction is wound spirally in the axial direction.
Approximately half of the width of adjacent portions in the width direction are wrapped around each other to form a quadruple overlapping portion.
It will not bend more than a certain angle (90 degrees, for example).
上記の様に構成されるこの発明の管内検査用テ
レビカメラ装置によると、第２図に示すような屈
曲管３０を検査する場合にも、図示矢印Ｆ方向へ
力を加え、撮像部本体２１をスムーズに管内に挿
入することができる。直進する場合は状態Ａに示
すように第２の可とう管２４からの押圧力によつ
て前進し、横方向の曲がり部３０ａにさしかかつ
た場合は状態Ｂのように第１の可とう管２３が大
きく屈曲し挿入方向に前後の可とう管２４を導く
ことになる。更に下方向の曲がり部３０ｃにさし
かかつた場合は、第１の可とう管２３は撮像部本
体２１の自重により屈曲する程度であるから、後
続部分はスムーズに挿入方向へ案内される。 According to the television camera device for pipe inspection of the present invention configured as described above, even when inspecting the bent pipe 30 as shown in FIG. It can be inserted smoothly into the tube. When moving straight, the second flexible tube 24 moves forward as shown in state A, and when it approaches a horizontal bend 30a, the first flexible tube moves forward as shown in state B. The tube 23 is bent greatly and guides the front and rear flexible tubes 24 in the insertion direction. When the first flexible tube 23 reaches the downward bending portion 30c, the first flexible tube 23 only bends due to the weight of the imaging section main body 21, so that the subsequent portion is smoothly guided in the insertion direction.
この発明の装置によると、第１の可とう管２３
が、第１図に示したように構成されているため、
管にねじりを加えると伸縮動作を得ることができ
る。更に、第１の可とう管２３が右まわりの螺旋
で構成された状態にある場合、装置全体に右まわ
りの回転力を加えると、先端は、より曲がろうと
する方向に働き、全体に左まわりの回転力を加え
ると、先端部は真直ぐになろうとする力が働く。
このため第３図ａの様に撮像部本体２１が、管の
繋ぎ部の端部３１に衝突したとしても、回転方向
に往復ねじりを加えることで撮像部本体２１に振
れを生じさせることができ、端部３１に対する撮
像部本体２１の乗上げを可能とする。また同図ｂ
のような状態で端部３２に衝突したときも同様で
ある。仮に第３図ｂのような状態で第１の可とう
管２３に、強いばね性があると撮像部本体２１が
管壁に衝突したままととなり挿入が不可能となる
が、この発明の装置では第１の可とう管２３が柔
軟であるため容易に屈曲形状に追従できる。 According to the device of the invention, the first flexible tube 23
is configured as shown in Figure 1, so
Twisting the tube allows it to expand and contract. Furthermore, if the first flexible tube 23 is configured with a clockwise spiral, if a clockwise rotational force is applied to the entire device, the tip will act in a direction that tends to bend more, causing the entire device to rotate to the left. When the surrounding rotational force is applied, a force is exerted on the tip that tends to straighten it.
Therefore, even if the imaging unit main body 21 collides with the end 31 of the joint part of the tube as shown in FIG. , which allows the imaging unit main body 21 to ride on the end portion 31. Also in the same figure b
The same applies when the vehicle collides with the end portion 32 in a state such as the above. If the first flexible tube 23 had strong spring properties in the state shown in FIG. Since the first flexible tube 23 is flexible, it can easily follow a bent shape.
更に第２の可とう管は、第１の可とう管２３よ
りも剛性がある。このため挿入、引出しに際して
充分な力を発揮できる。また、挿入後では管の屈
曲部の内壁の角部に変形を保持して接触するた
め、状態位置を安定化させる役目を持ち、モニタ
画像がぶれることはない。更にまた複数の屈曲部
を通過して挿入力に大きな負荷がかかつてきた場
合は、可とう管に回転を加えることで、更に管内
を前進させることができる。 Furthermore, the second flexible tube is more rigid than the first flexible tube 23. Therefore, sufficient force can be exerted during insertion and withdrawal. Further, after insertion, since the tube contacts the corner of the inner wall of the bent portion of the tube while maintaining its deformation, it has the role of stabilizing the state position and the monitor image does not become blurred. Furthermore, if a large load is applied to the insertion force after passing through a plurality of bends, rotation can be applied to the flexible tube to further advance the tube.
［発明の効果］
以上説明したようにこの発明によると、撮像部
本体の支持効果、操作性を損うことなく、屈曲管
への侵入を容易にしうる管内検査用テレビカメラ
装置を提供できる。[Effects of the Invention] As described above, according to the present invention, it is possible to provide a television camera device for inspecting inside a pipe that can easily enter a bent pipe without impairing the supporting effect and operability of the imaging unit main body.
第１図はこの発明の一実施例を示す構成説明
図、第２図、第３図はこの発明装置の動作を説明
するために示した図、第４図は、管内検査用テレ
ビカメラ装置の説明図である。
２１……撮像部本体性，２３……第１の可とう
管、２４……第２の可とう管。
FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention, FIGS. 2 and 3 are diagrams shown to explain the operation of the device of the invention, and FIG. 4 is a diagram showing a television camera device for pipe inspection. It is an explanatory diagram. 21... Imaging unit main body, 23... First flexible tube, 24... Second flexible tube.
Claims (1)
部本体と外部のモニタ及び制御装置間をカメラ制
御ケーブルにて接続して管内の検査を行う管内検
査用テレビカメラ装置において、 前記カメラ制御ケーブルを保護する管は、 一端が前記撮像部本体に取付けられ弾性を有
し、前記撮像部本体の重量により屈曲する程度で
８〜30cm程度の長さの第１の可とう管と、 この第１の可とう管の他端に接続され、前記第
１の可とう管よりも剛性を有し変形を保持可能な
第２の可とう管とで構成されていることを特徴と
する管内検査用テレビカメラ装置。 ２ 前記第１の可とう管は、幅方向の断面がＳ形
の帯状の金属板が軸方向に螺旋状に巻かれ、かつ
幅方向に隣合う部分はその幅の約２分の１の重な
りを持つように形成されていることを特徴とする
特許請求の範囲第１項記載の管内検査用テレビカ
メラ装置。[Claims] 1. A television camera for inspecting the inside of a pipe by inserting an imaging unit main body into a pipe to be inspected and connecting the imaging unit main body and an external monitor and control device with a camera control cable. In the apparatus, the tube for protecting the camera control cable has a first flexible tube having one end attached to the imaging section main body, having elasticity, and having a length of about 8 to 30 cm to the extent that it is bent by the weight of the imaging section main body. A flexible tube, and a second flexible tube connected to the other end of the first flexible tube, which is more rigid than the first flexible tube and capable of retaining deformation. Features: TV camera device for pipe inspection. 2 The first flexible tube has a band-shaped metal plate having an S-shaped cross section in the width direction, wound spirally in the axial direction, and adjacent portions in the width direction overlap by about half of the width. 2. The television camera device for pipe inspection according to claim 1, wherein the television camera device is configured to have the following characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60240981A JPS62100650A (en) | 1985-10-28 | 1985-10-28 | Tv camera apparatus for inspecting inside of tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60240981A JPS62100650A (en) | 1985-10-28 | 1985-10-28 | Tv camera apparatus for inspecting inside of tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62100650A JPS62100650A (en) | 1987-05-11 |
| JPH0575061B2 true JPH0575061B2 (en) | 1993-10-19 |
Family
ID=17067540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60240981A Granted JPS62100650A (en) | 1985-10-28 | 1985-10-28 | Tv camera apparatus for inspecting inside of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62100650A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0515993D0 (en) * | 2005-08-03 | 2005-09-07 | Super Rod Ltd | Inspection tool |
| JP6474954B2 (en) * | 2013-08-01 | 2019-02-27 | 東京都 | In-pipe working device |
| JP6401663B2 (en) * | 2015-05-25 | 2018-10-10 | 日本電信電話株式会社 | Structure inspection apparatus and L-shaped guide installation method |
-
1985
- 1985-10-28 JP JP60240981A patent/JPS62100650A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62100650A (en) | 1987-05-11 |
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