JPH0735152A - Spherical joint with angle detection function and curvature measuring instrument of pipeline - Google Patents
Spherical joint with angle detection function and curvature measuring instrument of pipelineInfo
- Publication number
- JPH0735152A JPH0735152A JP17833993A JP17833993A JPH0735152A JP H0735152 A JPH0735152 A JP H0735152A JP 17833993 A JP17833993 A JP 17833993A JP 17833993 A JP17833993 A JP 17833993A JP H0735152 A JPH0735152 A JP H0735152A
- Authority
- JP
- Japan
- Prior art keywords
- angle
- light
- spherical joint
- joint
- female 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.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は角度検出機能付球面継手
および管路の曲率測定装置に関し、特に、小型で簡単な
構成によって２軸間の角度を検出可能な角度検出機能付
球面継手、およびこの角度検出機能付球面継手を用いた
管路の曲率測定装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical joint with an angle detecting function and a curvature measuring device for a pipe, and more particularly to a spherical joint with an angle detecting function capable of detecting an angle between two axes with a small and simple structure. The present invention relates to a curvature measuring device for a conduit using the spherical joint with an angle detecting function.
【０００２】[0002]
【従来の技術】従来、地中に埋設された通信や電力用の
管路には、その中にケーブルが引き通されるが、このケ
ーブルの敷設に際しては、管路の一端にあるマンホール
からケーブルを入れ、他端にあるマンホールからケーブ
ルを牽引して引き出すことが行われる。このとき、管路
の曲がり角度はケーブルを敷設する際の牽引力の増加に
大きく影響を与えるため、事前に管路の曲がり角度を検
査する必要がある。2. Description of the Related Art Conventionally, a cable is drawn through a conduit line for communication or electric power buried in the ground. When laying this cable, the cable is pulled from a manhole at one end of the conduit line. And pulling the cable out of the manhole at the other end. At this time, the bending angle of the pipeline greatly affects the increase in the traction force when laying the cable, so it is necessary to inspect the bending angle of the pipeline in advance.
【０００３】これまでは、管路の曲がり角度を検査する
方法としては、(1) 管路内に円筒状の供試体を通し、管
路の曲率がある一定値以上で有るか否かを判定する方
法、(2) 管路内に電磁波を出す装置を通し、地上よりそ
の電磁波を感知していく方法、(3) 光ファイバジャイロ
を管路内に通し、管路内に装置を挿入した距離と変位角
より管路の軌跡を判定する方法等が行われていた。Up to now, as a method of inspecting the bending angle of a pipeline, (1) a cylindrical test piece is passed through the pipeline to determine whether the curvature of the pipeline is a certain value or more. Method, (2) a method of detecting electromagnetic waves from the ground through a device that emits electromagnetic waves into the pipeline, (3) a distance that the device is inserted into the pipeline by inserting an optical fiber gyro into the pipeline The method of determining the trajectory of the pipeline from the displacement angle was used.
【０００４】ところが、(1) の円筒状の供試体による方
法は、管路の曲がり角度が全く分からないあやふやな方
法であり、(2) の電磁波による方法は、装置と一緒に地
上を移動しながら計測する時間と労力がかかる方法であ
り、(3) の光ファイバジャイロによる方法は、上下、左
右の曲がりを検出するためには、２軸のジャイロが必要
となり、非常に高価な方法となるという問題があった。However, the method (1) using a cylindrical test piece is a nuisance method in which the bending angle of the pipeline is completely unknown, and the method (2) using electromagnetic waves moves on the ground together with the device. Although it takes time and labor to measure, the method using the optical fiber gyro of (3) requires a two-axis gyro to detect vertical and horizontal bends, which is a very expensive method. There was a problem.
【０００５】そこで、２軸の光ファイバジャイロを使用
しない継手を使用して管路の曲がりを測定することが考
えられている。Therefore, it has been considered to measure the bend of the conduit by using a joint that does not use a biaxial optical fiber gyro.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、２軸間
の角度を自由に変えられる継手はあるが、２軸間の角度
を検出することが可能な継手は現在のところ存在しな
い。However, although there are joints in which the angle between the two axes can be freely changed, there is currently no joint capable of detecting the angle between the two axes.
【０００７】また、従来、２軸間の角度を自由に変えら
れる継手の角度を測定する場合、継手外部にセンサを設
ける必要があり、継手が大型化する上に、２軸間が自由
に回転する構造とする場合、非接触式センサを用いる必
要があるため、装置内部に継手を組み込む場合や、地下
埋設管路等の狭い場所の内部の角度を測定する装置内へ
の組み込みは困難であった。Further, conventionally, when measuring the angle of a joint in which the angle between the two axes can be freely changed, it is necessary to provide a sensor outside the joint, which increases the size of the joint and allows the two axes to rotate freely. In this case, since it is necessary to use a non-contact type sensor, it is difficult to install a joint inside the device or to install it inside the device that measures the angle inside a narrow space such as an underground buried pipeline. It was
【０００８】本発明は上記課題を解消するためになされ
たものであり、その第１の目的は、小型にして２軸間の
角度を検出可能であり、２軸間がそれぞれ回転可能な構
造を有する角度検出機能付球面継手を提供することにあ
り、第２の目的は、この角度検出機能付球面継手を備え
て、地中に埋設された通信や電力用の管路の曲がり角度
を検出することができる管路の曲率測定装置を提供する
ことにある。The present invention has been made to solve the above problems, and a first object of the present invention is to provide a structure that is small in size, capable of detecting an angle between two axes, and rotatable between the two axes. A second object of the present invention is to provide a spherical joint with an angle detection function, which has a spherical joint with an angle detection function to detect a bending angle of a conduit line for communication or electric power buried in the ground. An object of the present invention is to provide a device for measuring the curvature of a pipe line.
【０００９】[0009]
【課題を解決するための手段】前記第１の目的を達成す
る本発明の角度検出機能付球面継手は、球状の凹部を備
えた雌部材に、球状の凸部を備えた雄部材を嵌め合わせ
て構成され、前記雌部材と前記雄部材とのなす角度を検
出可能な角度検出機能付球面継手であって、前記雌部材
と前記雄部材には、両者が一直線上にある時に軸線方向
に連続する貫通孔、この貫通孔の一方の端部に位置する
発光手段、および前記貫通孔の他方の端部に位置して前
記発光手段から入射される光の量に応じて電圧を発生す
る受光手段が設けられ、前記受光手段によって発生され
る電圧の値と、予め記憶された前記雌部材と前記雄部材
とのなす角度と発生電圧との特性に基づき、前記雌部材
と前記雄部材とのなす角度が検出できるようになってい
ることを特徴としている。In a spherical joint with an angle detecting function of the present invention that achieves the first object, a female member having a spherical concave portion is fitted with a male member having a spherical convex portion. A spherical joint with an angle detection function capable of detecting an angle formed by the female member and the male member, wherein the female member and the male member are continuous in the axial direction when they are in a straight line. Through hole, a light emitting means located at one end of the through hole, and a light receiving means located at the other end of the through hole and generating a voltage according to the amount of light incident from the light emitting means. Is provided, and based on the value of the voltage generated by the light receiving means and the characteristic of the generated voltage and the angle formed by the female member and the male member which are stored in advance, the female member and the male member The feature is that the angle can be detected. There.
【００１０】また、前記第２の目的を達成する本発明の
管路の曲率測定装置は、請求項１に記載の角度検出機能
付球面継手を使用した管路の曲率測定装置であって、管
路の内径を測定する内径測定装置と、管路の内部を撮影
する撮像装置と、前記内径測定装置と前記撮像装置との
ジョイント部に取り付けられた角度検出機能付球面継手
と、この角度検出機能付球面継手から出力される電圧に
よって角度検出機能付球面継手の曲がり角度を検出する
検出回路とから構成され、測定すべき管路の内径測定、
目視検査、および管路の曲がり角度の測定を同時に行う
ことが可能であることを特徴としている。A curvature measuring device for a conduit of the present invention which achieves the second object is a curvature measuring device for a conduit using a spherical joint with an angle detecting function according to claim 1. An inner diameter measuring device for measuring the inner diameter of the passage, an imaging device for photographing the inside of the conduit, a spherical joint with an angle detecting function attached to a joint portion between the inner diameter measuring device and the imaging device, and this angle detecting function It is composed of a detection circuit that detects the bending angle of the spherical joint with an angle detection function based on the voltage output from the spherical joint with a
The feature is that it is possible to perform visual inspection and measurement of the bend angle of the pipeline at the same time.
【００１１】[0011]
【作用】本発明の角度検出機能付球面継手によれば、雌
部材と雄部材とが一直線上にある時には、雌部材に設け
られた貫通孔と雄部材に設けられた貫通孔の端部開口が
完全に一致して対向するので、軸線方向に連続する貫通
孔の一方の端部に位置する発光手段から出射された光の
全てが、貫通孔の他方の端部に位置する受光手段に全て
受光され、この受光手段が所定の電圧を発生する。一
方、雌部材と雄部材とが所定の角度をなす時には、雌部
材に設けられた貫通孔と雄部材に設けられた貫通孔の端
部開口の境界面にずれが生じ、雌部材の貫通孔の端部開
口が雄部材の一部によって塞がれる。この結果、貫通孔
の一方の端部に位置する発光手段から出射された光は、
その一部しか貫通孔の他方の端部に位置する受光手段に
受光されなくなり、この受光手段が発生する電圧が減少
する。よって、この受光手段の発生する電圧を検出する
ことにより、球面継手の雌部材と雄部材とのなす角度が
分かる。According to the spherical joint with an angle detecting function of the present invention, when the female member and the male member are aligned with each other, the through holes provided in the female member and the end openings of the through holes provided in the male member are opened. Completely match and face each other, so that all of the light emitted from the light emitting means located at one end of the through hole continuous in the axial direction is all received by the light receiving means located at the other end of the through hole. Light is received, and this light receiving means generates a predetermined voltage. On the other hand, when the female member and the male member form a predetermined angle, the boundary surface between the through hole provided in the female member and the end opening of the through hole provided in the male member is displaced, and the through hole of the female member is formed. The end opening is closed by a part of the male member. As a result, the light emitted from the light emitting means located at one end of the through hole is
Only part of the light is not received by the light receiving means located at the other end of the through hole, and the voltage generated by this light receiving means is reduced. Therefore, by detecting the voltage generated by the light receiving means, the angle formed by the female member and the male member of the spherical joint can be known.
【００１２】[0012]
【実施例】以下添付図面を用いて本発明の実施例を詳細
に説明する。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
【００１３】図１(a) は本発明の角度検出機能付球面継
手の一実施例の構成を示す断面図であり、図１(b) は図
１(a) のＡ−Ａ線における断面図である。FIG. 1 (a) is a sectional view showing the structure of an embodiment of the spherical joint with an angle detecting function of the present invention, and FIG. 1 (b) is a sectional view taken along the line AA of FIG. 1 (a). Is.
【００１４】図１(a) に示すように、この実施例の角度
検出機能付球面継手は、雄部材３と雌部材４とから構成
される。雄部材３はその円柱状の本体３１の先端部に球
状の凸部３２が設けられたものであり、本体３１および
球状の凸部３２にはその軸線に沿って、凸部３２の先端
側から本体３１の末端側まで連続する光導孔３３が設け
られている。一方、雌部材４はその円柱状の本体４１の
先端部に円筒状のリング４２が取り付けられており、こ
れら本体４１とリング４２の中に、球状の凹部４４が設
けられている。このように、雌部材４側の凹部４４が本
体４１とリング４２とで構成されているのは、この凹部
４４の中に雄部材３側の凸部３２を嵌め込んで固定する
ためである。また、雌部材４側にも雄部材３と同様に、
その軸線に沿って、本体４１の末端側から球状の凹部４
４まで連続する光導孔４３が設けられている。As shown in FIG. 1 (a), the spherical joint with an angle detecting function of this embodiment comprises a male member 3 and a female member 4. The male member 3 has a cylindrical main body 31 provided with a spherical convex portion 32 at the tip thereof, and the main body 31 and the spherical convex portion 32 extend along the axis thereof from the tip end side of the convex portion 32. A light guide hole 33 continuous to the end side of the main body 31 is provided. On the other hand, in the female member 4, a cylindrical ring 42 is attached to the tip of a columnar main body 41, and a spherical recess 44 is provided in the main body 41 and the ring 42. Thus, the reason why the concave portion 44 on the female member 4 side is composed of the main body 41 and the ring 42 is to fit and fix the convex portion 32 on the male member 3 side in the concave portion 44. Also, on the female member 4 side, like the male member 3,
Along the axis of the main body 41, the spherical concave portion 4
The light guide holes 43 continuous up to 4 are provided.
【００１５】図１(a) に示すように、雌部材４の凹部４
４に凸部３２が嵌め込まれた雄部材３は、雌部材４に対
して自在に揺動できるようになっており、雄部材３と雌
部材４とのなす曲がり角度（以後交角という）もある程
度まで変化する。そこで、雌部材４の雄部材３側の端部
には柔軟性を備えたストッパ４５が取り付けられてお
り、雄部材３と雌部材４との交角が最大になった時に、
このストッパ４５が雄部材３の首部３４または肩部３５
に柔らかく当接して両者の衝突による破損を防止するよ
うになっている。As shown in FIG. 1 (a), the concave portion 4 of the female member 4 is
The male member 3 in which the convex portion 32 is fitted in 4 is freely swingable with respect to the female member 4, and the bending angle (hereinafter referred to as the crossing angle) between the male member 3 and the female member 4 is also to some extent. Change. Therefore, a stopper 45 having flexibility is attached to the end of the female member 4 on the male member 3 side, and when the angle of intersection between the male member 3 and the female member 4 is maximized,
The stopper 45 serves as a neck portion 34 or a shoulder portion 35 of the male member 3.
It is designed to be softly abutted against and to prevent damage due to collision between the two.
【００１６】なお、雄部材３に設けられた光導孔３３と
雌部材４に設けられた光導孔４３の軸線は一致している
ので、雄部材３に雌部材４が取り付けられ、一直線上に
なっている時には、光導孔３３の凸部３２における開口
と光導孔４３の凹部４４における開口とは、図１(b) に
示すようにずれなく重なり、Ａ−Ａ線から見た形は円形
である。そして、この状態では、光導孔３３と光導孔４
３とは１つの曲がりのない貫通孔のようになっている。Since the axes of the light guide holes 33 provided in the male member 3 and the light guide holes 43 provided in the female member 4 are aligned with each other, the female member 4 is attached to the male member 3 to form a straight line. 1B, the opening in the convex portion 32 of the light guide hole 33 and the opening in the concave portion 44 of the light guide hole 43 overlap each other as shown in FIG. 1B, and the shape viewed from the line AA is circular. . And in this state, the light guide hole 33 and the light guide hole 4
3 is like a single through hole without bending.
【００１７】そして、この実施例では、雄部材３に設け
られた光導孔３３の本体３１の末端側に光を出射する発
光素子１が設けられており、雌部材４に設けられた光導
孔４３の本体４１の末端側に光を受光する受光素子２が
設けられている。発光素子１の発光量は一定であり、受
光素子２は発光素子１から届く光の量に応じて電圧を発
生する。従って、図１(a),(b) に示す状態（雄部材３と
雌部材４とが一直線上にある状態）では、発光素子１か
ら出射された光は全て受光素子２に届くことになる。な
お、図において１ａは発光素子１に通電するケーブル、
２ａは受光素子２に生じた電圧を取り出すためのケーブ
ルである。In this embodiment, the light emitting element 1 which emits light is provided at the end of the main body 31 of the light guide hole 33 provided in the male member 3, and the light guide hole 43 provided in the female member 4 is provided. A light receiving element 2 for receiving light is provided on the end side of the main body 41 of the. The light emission amount of the light emitting element 1 is constant, and the light receiving element 2 generates a voltage according to the amount of light reaching from the light emitting element 1. Therefore, in the state shown in FIGS. 1A and 1B (the state where the male member 3 and the female member 4 are in a straight line), all the light emitted from the light emitting element 1 reaches the light receiving element 2. . In the figure, 1a is a cable for energizing the light emitting element 1,
Reference numeral 2a is a cable for extracting the voltage generated in the light receiving element 2.
【００１８】図２(a),(b) は以上のように構成された角
度検出機能付球面継手が曲げられ、雄部材３と雌部材４
からなる継手部分に所定の交角が生じた場合を示してい
る。このように、継手部分に交角がある場合、図２(a)
に示すように、光導孔３３，４３の対向部にずれが生じ
る。この結果、図２(a) のＢ−Ｂ線において光導孔３
３，４３の境界部を見ると、継手部分に交角がある場合
がある場合の光導孔３３，４３の境界部の断面積は、図
２(b) に示すように、交角に応じて小さく絞られた状態
となる。2 (a) and 2 (b), the spherical joint with an angle detecting function constructed as described above is bent, and the male member 3 and the female member 4 are bent.
It shows a case where a predetermined crossing angle is generated in the joint portion consisting of. In this way, if there is an intersection angle in the joint,
As shown in FIG. 5, a gap occurs between the facing portions of the light guide holes 33 and 43. As a result, in the BB line of FIG.
Looking at the boundary of 3, 43, the cross-sectional area of the boundary of the light guide holes 33, 43 when there is a case where there is an intersection at the joint part, as shown in Fig. 2 (b), is narrowed according to the intersection. It will be in a state where
【００１９】従って、継手部分に交角が生じている場合
は、発光素子１から受光素子２に到達する光量が交角に
応じて減少するため、受光素子２に発生する電圧が図１
(b)に示した状態の電圧に比べて小さくなる。この発生
電圧は交角が大きくなればなるほど小さくなるので、雄
部材３と雌部材４との間の交角を、この受光素子２の発
生電圧によって検出することができる。Therefore, when the joint portion has an intersection angle, the amount of light reaching the light receiving element 2 from the light emitting element 1 decreases according to the intersection angle, so that the voltage generated in the light receiving element 2 is as shown in FIG.
It is smaller than the voltage in the state shown in (b). Since the generated voltage becomes smaller as the intersecting angle becomes larger, the intersecting angle between the male member 3 and the female member 4 can be detected by the generated voltage of the light receiving element 2.
【００２０】図３はこの雄部材３と雌部材４との間の交
角（度）と、そのときの受光素子２の発生電圧（Ｖ）と
の関係を示すものである。この図から分かるように、雄
部材３と雌部材４との交角が０の場合に受光素子２の発
生電圧は最大となり、雄部材３と雌部材４との交角が増
大するほど、受光素子２の発生電圧が小さくなる。よっ
て、本発明の角度検出機能付球面継手に内蔵された受光
素子２の出力にマイクロコンピュータを備えた制御回路
を接続し、この制御回路のメモリに図３に示す特性をマ
ップの形で記憶させておけば、制御回路は受光素子２の
出力電圧に応じて角度検出機能付球面継手の雌部材３と
雄部材４のなす交角を直ちに演算することができる。FIG. 3 shows the relationship between the crossing angle (degree) between the male member 3 and the female member 4 and the voltage (V) generated by the light receiving element 2 at that time. As can be seen from this figure, when the crossing angle between the male member 3 and the female member 4 is 0, the generated voltage of the light receiving element 2 becomes maximum, and as the crossing angle between the male member 3 and the female member 4 increases, the light receiving element 2 Generated voltage becomes smaller. Therefore, a control circuit equipped with a microcomputer is connected to the output of the light receiving element 2 incorporated in the spherical joint with an angle detecting function of the present invention, and the characteristics of the control circuit are stored in the memory of this control circuit in the form of a map. Then, the control circuit can immediately calculate the intersection angle formed by the female member 3 and the male member 4 of the spherical joint with an angle detecting function according to the output voltage of the light receiving element 2.
【００２１】このように、以上説明した実施例では、雄
部材３と雌部材４とがなす交角を検出する機構を継手の
内部に設置することができるので、継手のサイズを小さ
くすることができる。また、図１，図２に示したよう
に、継手の可動部分（凹部４４に嵌め合わされた凸部３
２）は球面回転部だけであり、この部分の構造は球面同
士が擦り合わされることにより角度が変わるシンプルな
ものであるので、高い強度を備え、２軸間に引張力や圧
縮力が作用しても角度検出に対して誤差を生じない高精
度な計測が可能である。更に、継手可動部分に変位セン
サ等の２軸間の曲がり、回転を阻害するものを取り付け
る必要がないため、球面回転部の直径および光導孔３
３，４３の直径の比率により、雄部材３と雌部材４との
交角を検出できる範囲を自由に設定できると共に、２軸
間に回転力が働く場合においても、２軸間が自由に回転
できる構造であるため、雄部材３と雌部材４との交角検
出に対して何ら問題なく角度の検出が行える。As described above, in the above-described embodiment, since the mechanism for detecting the angle of intersection between the male member 3 and the female member 4 can be installed inside the joint, the joint size can be reduced. . Further, as shown in FIGS. 1 and 2, the movable portion of the joint (the convex portion 3 fitted in the concave portion 44
2) is only a spherical rotating part, and the structure of this part is simple because the angle changes when the spherical surfaces rub against each other, so it has high strength and tensile force or compression force acts between the two axes. However, it is possible to perform highly accurate measurement without causing an error in angle detection. Furthermore, since it is not necessary to attach a displacement sensor or the like that bends between the two axes to the joint movable portion to prevent rotation, the diameter of the spherical rotating portion and the light guide hole 3
Depending on the ratio of the diameters of 3, 43, the range in which the intersection angle between the male member 3 and the female member 4 can be detected can be freely set, and even when a rotational force acts between the two axes, the two axes can freely rotate. Due to the structure, the angle can be detected without any problem in detecting the intersection angle between the male member 3 and the female member 4.
【００２２】図３は本発明の角度検出機能付球面継手を
利用した第２の実施例の管路の曲率測定装置の構成を、
その使用状態と共に示す説明図である。FIG. 3 shows the construction of a curvature measuring device for a conduit according to the second embodiment, which uses the spherical joint with an angle detecting function of the present invention.
It is explanatory drawing shown with the use condition.
【００２３】管路の曲率測定装置は、図４に示すよう
に、マンホール５とマンホール５との間に設けられた管
路６に、通信、もしくは電力等のケーブルを引き通す際
に、管路６の曲がり角度を測定するためのものである。
一般に、ケーブルを敷設する前に必要な管路６の点検作
業においては、管路６の曲がり角度以外にも、ケーブル
が通過する内空があるか否かを判定する内径測定や、Ｃ
ＣＤカメラによる管路６内の穴、錆等の目視検査が合わ
せて実施される。As shown in FIG. 4, the apparatus for measuring the curvature of the conduit is arranged so that when a cable for communication or electric power is passed through the conduit 6 provided between the manholes 5 and 5, the conduit is provided. 6 is for measuring the bending angle.
Generally, in the inspection work of the pipe line 6 required before laying the cable, in addition to the bending angle of the pipe line 6, an inner diameter measurement for determining whether there is an inner space through which the cable passes or C
A visual inspection for holes, rust, etc. in the conduit 6 by a CD camera is also performed.
【００２４】そこで、この実施例の管路の曲率測定装置
は、内径測定装置７およびＣＣＤカメラ８を備えてお
り、内径測定装置７とＣＣＤカメラ８のジョイント部に
図１，図２で説明した角度検出機能付球面継手９が使用
されている。そして、内径測定装置７はケーブル１３に
よって測定器用ケーブルリール１０に接続されており、
内径測定装置７とＣＣＤカメラ８、および角度検出機能
付球面継手９からの検出信号は、このケーブル１３、ケ
ーブルリール１０を介して測定機制御装置１１に入力さ
れるようになっており、この測定機制御装置１１は、内
径測定装置７とＣＣＤカメラ８、および角度検出機能付
球面継手９からの検出信号によって、管路６の内径測
定、目視検査、および管路の交角を検出する。また、Ｃ
ＣＤカメラ８は牽引用ロープ１２によって地上に設置さ
れたリール１４に接続している。Therefore, the apparatus for measuring the curvature of the conduit of this embodiment is provided with the inner diameter measuring device 7 and the CCD camera 8, and the joint portion between the inner diameter measuring device 7 and the CCD camera 8 has been described with reference to FIGS. A spherical joint 9 with an angle detecting function is used. The inner diameter measuring device 7 is connected to the measuring instrument cable reel 10 by a cable 13,
The detection signals from the inner diameter measuring device 7, the CCD camera 8, and the spherical joint 9 with an angle detecting function are input to the measuring machine control device 11 via the cable 13 and the cable reel 10, and this measurement is performed. The machine control device 11 measures the inner diameter of the pipe 6, the visual inspection, and the crossing angle of the pipe by the detection signals from the inner diameter measuring device 7, the CCD camera 8, and the spherical joint 9 with an angle detecting function. Also, C
The CD camera 8 is connected to a reel 14 installed on the ground by a towing rope 12.
【００２５】従って、この実施例の管路の曲率測定装置
を使用すれば、管路６の内径測定、目視検査と同時に、
管路６の交角（曲がり角度）の測定を行うことができ
る。すなわち、この実施例の管路の曲率測定装置によれ
ば、管路６の上下、左右方向の曲がり角度を一組の装置
で測定可能となり、内径５０ｍｍ程度の小口径管路の点
検での使用も可能となる。Therefore, if the apparatus for measuring the curvature of the conduit of this embodiment is used, the inner diameter of the conduit 6 can be measured and the visual inspection can be performed at the same time.
The crossing angle (bending angle) of the conduit 6 can be measured. That is, according to the curvature measuring device of the pipe line of this embodiment, the bending angle of the pipe line 6 in the vertical and horizontal directions can be measured by one set of devices, and it can be used for inspection of a small diameter pipe line having an inner diameter of about 50 mm. Will also be possible.
【００２６】また、５００ｍを越えるような長いスパン
の管路の場合は、牽引力が１００ｋｇｆを越えるが、こ
の実施例の装置によれば、簡単に測定が可能となる。更
に、牽引ロープの牽引により、内径測定装置７およびＣ
ＣＤカメラ８が管路６内でローリングするが、この実施
例の装置によれば、２軸間の回転運動は角度検出機能付
球面継手９によって自由であるため、なんら問題なく管
路６の測定を行うことができる。Further, in the case of a long span pipe line exceeding 500 m, the traction force exceeds 100 kgf, but the apparatus of this embodiment enables easy measurement. Further, by pulling the tow rope, the inner diameter measuring device 7 and C
Although the CD camera 8 rolls in the pipe 6, the apparatus of this embodiment allows the rotational movement between the two axes to be freely performed by the spherical joint 9 with the angle detecting function, so that the pipe 6 can be measured without any problem. It can be performed.
【００２７】[0027]
【発明の効果】以上説明したように、本発明の角度検出
機能付球面継手によれば、簡単な構成で、小型軽量、高
精度、高強度に継手の交角を測定することができるとい
う効果がある。また、本発明の角度検出機能付球面継手
を利用した管路の曲率測定装置は、簡便にマンホール間
の管路の曲がり角度を測定することができるという効果
がある。As described above, according to the spherical joint with an angle detecting function of the present invention, it is possible to measure the intersection angle of the joint with a simple structure in a small size, light weight, high accuracy and high strength. is there. Further, the curvature measuring device for a conduit using the spherical joint with an angle detecting function of the present invention has an effect that the bending angle of the conduit between manholes can be easily measured.
【図１】(a) は本発明の一実施例の角度検出機能付球面
継手の構成を示す、継手に交角がない状態の断面図、
(b) は(a) のＡ−Ａ線における断面図である。FIG. 1 (a) is a cross-sectional view showing a configuration of a spherical joint with an angle detecting function according to an embodiment of the present invention in a state where there is no intersection angle in the joint,
(b) is a sectional view taken along line AA of (a).
【図２】(a) は図１に示した角度検出機能付球面継手に
おいて継手に交角が生じている状態の断面図、(b) は
(a) のＢ−Ｂ線における断面図である。2 (a) is a sectional view of the spherical joint with an angle detecting function shown in FIG. 1 in a state where an intersection angle is generated, and (b) is
It is sectional drawing in the BB line of (a).
【図３】図１の実施例における角度検出機能付球面継手
の交角と受光素子から出力される電圧との関係を示す特
性図である。3 is a characteristic diagram showing a relationship between an intersection angle of a spherical joint with an angle detecting function and a voltage output from a light receiving element in the embodiment of FIG.
【図４】図１の構成の角度検出機能付球面継手を使用し
た管路の曲率測定装置の構成をその使用状態と共に示す
説明図である。FIG. 4 is an explanatory view showing a configuration of a curvature measuring device for a conduit using the spherical joint with an angle detecting function of the configuration of FIG. 1 together with its usage state.
１ 発光素子 ２ 受光素子 ３ 雄部材 ４ 雌部材 ５ マンホール ６ 管路 ７ 内径測定装置 ８ ＣＣＤカメラ ９ 角度検出機能付球面継手 １０ 測定機用ケーブルリール １１ 測定機制御装置 １２ 牽引用ロープ １３ ケーブル ３１ 雄部材の本体 ３２ 凸部 ３３ 光導孔 ４１ 雌部材の本体 ４２ リング ４３ 光導孔 ４４ 凹部 1 Light emitting element 2 Light receiving element 3 Male member 4 Female member 5 Manhole 6 Pipe line 7 Inner diameter measuring device 8 CCD camera 9 Spherical joint with angle detection function 10 Cable reel for measuring machine 11 Measuring machine control device 12 Traction rope 13 Cable 31 Male Body of member 32 Convex portion 33 Light guide hole 41 Body of female member 42 Ring 43 Light guide hole 44 Recess
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 宏司 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Tanaka 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation
Claims (2)
部を備えた雄部材を嵌め合わせて構成され、前記雌部材
と前記雄部材とのなす角度を検出可能な角度検出機能付
球面継手であって、 前記雌部材と前記雄部材には、両者が一直線上にある時
に軸線方向に連続する貫通孔、この貫通孔の一方の端部
に位置する発光手段、および前記貫通孔の他方の端部に
位置して前記発光手段から入射される光の量に応じて電
圧を発生する受光手段が設けられ、 前記受光手段によって発生される電圧の値と、予め記憶
された前記雌部材と前記雄部材とのなす角度と発生電圧
との特性に基づき、前記雌部材と前記雄部材とのなす角
度が検出できるようになっていることを特徴とする角度
検出機能付球面継手。1. A female member having a spherical concave portion is fitted with a male member having a spherical convex portion, and has an angle detection function capable of detecting an angle formed by the female member and the male member. A spherical joint, wherein the female member and the male member have a through hole that is continuous in the axial direction when both are in a straight line, a light emitting means located at one end of the through hole, and the through hole. A light receiving unit is provided at the other end, which generates a voltage according to the amount of light incident from the light emitting unit, and the value of the voltage generated by the light receiving unit and the female member stored in advance. A spherical joint with an angle detecting function, wherein the angle formed by the female member and the male member can be detected based on the characteristics of the angle formed by the male member and the generated voltage.
手を使用した管路の曲率測定装置であって、 管路の内径を測定する内径測定装置と、 管路の内部を撮影する撮像装置と、 前記内径測定装置と前記撮像装置とのジョイント部に取
り付けられた角度検出機能付球面継手と、 この角度検出機能付球面継手から出力される電圧によっ
て角度検出機能付球面継手の曲がり角度を検出する検出
回路とから構成され、 測定すべき管路の内径測定、目視検査、および管路の曲
がり角度の測定を同時に行うことが可能な管路の曲率測
定装置。2. A curvature measuring device for a conduit using the spherical joint with an angle detecting function according to claim 1, wherein an inner diameter measuring device for measuring an inner diameter of the conduit, and an imaging for photographing the inside of the conduit. A device, a spherical joint with an angle detecting function attached to a joint portion between the inner diameter measuring device and the imaging device, and a bending angle of the spherical joint with an angle detecting function by a voltage output from the spherical joint with an angle detecting function. A curvature measuring device for a pipe, which is composed of a detection circuit for detecting and can simultaneously measure an inner diameter of a pipe to be measured, a visual inspection, and a bending angle of the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17833993A JP3319529B2 (en) | 1993-07-19 | 1993-07-19 | Spherical joint with angle detection function and pipe curvature measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17833993A JP3319529B2 (en) | 1993-07-19 | 1993-07-19 | Spherical joint with angle detection function and pipe curvature measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0735152A true JPH0735152A (en) | 1995-02-03 |
| JP3319529B2 JP3319529B2 (en) | 2002-09-03 |
Family
ID=16046766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17833993A Expired - Fee Related JP3319529B2 (en) | 1993-07-19 | 1993-07-19 | Spherical joint with angle detection function and pipe curvature measurement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3319529B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003076916A1 (en) * | 2002-03-13 | 2003-09-18 | Burn-Am Co., Ltd. | Device and method for inspecting inside of underground pipe line and method of inspecting concrete on inside of underground pipe line for deterioration |
| KR100434980B1 (en) * | 2001-08-21 | 2004-06-09 | 현대자동차주식회사 | Double sealing structure of Fuel tank repair hole |
| JP2006234525A (en) * | 2005-02-24 | 2006-09-07 | Kubota Corp | Intra-pipe examination device |
| KR100948293B1 (en) * | 2008-02-29 | 2010-03-17 | 김삼두 | Cable pipeline testing implement and method for testing cable pipeline using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101651504B1 (en) * | 2015-06-19 | 2016-08-29 | 윤흡 | measuring device radious of curvature and minor diameter of underground pipeline |
-
1993
- 1993-07-19 JP JP17833993A patent/JP3319529B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100434980B1 (en) * | 2001-08-21 | 2004-06-09 | 현대자동차주식회사 | Double sealing structure of Fuel tank repair hole |
| WO2003076916A1 (en) * | 2002-03-13 | 2003-09-18 | Burn-Am Co., Ltd. | Device and method for inspecting inside of underground pipe line and method of inspecting concrete on inside of underground pipe line for deterioration |
| JPWO2003076916A1 (en) * | 2002-03-13 | 2005-07-07 | 株式会社バーナム | Embedded pipe inspection device and method, and buried pipe concrete deterioration inspection method |
| US7131344B2 (en) | 2002-03-13 | 2006-11-07 | Burn-Am Co., Ltd. | Device and method for inspecting inside of underground pipe line and method of inspecting concrete on inside of underground pipe line for deterioration |
| JP2006234525A (en) * | 2005-02-24 | 2006-09-07 | Kubota Corp | Intra-pipe examination device |
| JP4641824B2 (en) * | 2005-02-24 | 2011-03-02 | 株式会社クボタ | In-pipe inspection device |
| KR100948293B1 (en) * | 2008-02-29 | 2010-03-17 | 김삼두 | Cable pipeline testing implement and method for testing cable pipeline using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3319529B2 (en) | 2002-09-03 |
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