JPS60111176A - Detecting method of pipe - Google Patents

Abstract

PURPOSE:To detect the advance direction of an in-pipe wire passing tool by connecting a conductive body having an insulated coating, to a leading member of a metallic in-pipe wire passing tool having the leading member whose end face is square, making a wire pass through into the pipe, connecting an AC power source to the conductive body, and detecting an electromagnetic field in the outside of the pipe. CONSTITUTION:An in-pipe wire passing tool 20 is constituted of a main wire rod 1, an auxiliary wire rod 2, a leading member 3 whose free end face 4 is square, and a line 51 consisting of a conductive body 54 coated by an insulating coated layer 52 connected to the leading member 3. When the in-pipe wire passing tool 20 is advanced into a tee 6 through a leading-in pipe 7 of an underground buried pipe 5, the auxiliary member 2 advances into a flexible pipe 5 by a weight of the leading member 3. The free end face 4 of the leading member 3 is square, therefore, when a corner part 4a is caught in a step difference in the pipe, it jumps and gest over the step difference by an elastic force of the auxiliary member 2 and the main wire 1. An advance direction of the in-pipe wire passing tool 20 is detected by detecting an electromagnetic field generated by connecting an AC power source to the line 51 on the ground.

Description

[Detailed Description of the Invention] The tree line is an extension of - in a pipe installed underground or embedded in a building or in a pipe installed in a moderate manner. This invention relates to a new detection method for determining the direction of traffic and the direction of sound from which a person is approaching within the jurisdiction.

For example, underground construction workers who transport gas fuel are temporarily branched out underground during the winter. Therefore, it is difficult to accurately determine the buried location on the ground surface.

Therefore, it is difficult to properly excavate a vertical hole to expose a part of the canal for supplementary examination of the canal.

The point ELJ of this issue (7) is the extension direction of such a heron.
7i- It is an object of the present invention to provide a method for detecting a tube.

The underground pieces that transport gas fuel are, as stated in ItJ,
It branches underground. Enter the bifurcated a'-looking fort, inside, and inside] line, and use that j! It is necessary to violently inject glycol liquid into the underground pipe to prevent gas leakage from the bridge and joint through the pipe connected to the pipe by urine. Conventionally, it has not been possible to know the direction of entry of such pipes.

An object of the present invention is to provide a detection method that makes it possible to know the direction of entry into a pipe.

FIG. 1 is a diagram showing a retaining recess 20 of a part of the folding IJ according to the present invention. The main wire 1 has a relatively large elastic force and is made of piano wire, etc., and the piano wire is wound in a spiral shape and has a groove. The above values may be subtracted by 1. IQllll*1 of the auxiliary binding material 2 is also punched at the end of the raw 41 hole.

At the other end 1jll of the 2nd side of the 2nd side, 1!11≦3 is identified, which is made of steel or the like. b) 1 no suke ike 2 can be supported by 1 no suke 3 and has a smaller elastic force than oh 1 y ike l. Sodogensuko () J2 also uses piano wire etc., 1
IlAhi is once again and morally established. This song assistant? The length of the i material 2 may be, for example, 10 cm IJfj.

The main line +A' l and Itori Sukegura Ota 2 have a convex Iljε
Sumi line 51 will be pushed through. This line 51 is formed into a groove by inserting the line 52 over the extra length of the electrically insulating dipping layer 5'l. At one end of the power receiving body 52, the bond layer 53 is removed, and the appearance IM
At the position shown in III child 54, contact due to drunkenness etc.
be done. This connection position 54 may be the auxiliary wire 2, or it may be a part of the main line which is located above the auxiliary wire 2. The line 51 is an IjJ enemy and has no repulsive force, or is sufficiently smaller than the king, material 1 and kaisuke, material 2. A perspective view of the anus with the guide member 3 is shown. This d Tokuto Shrine 3 is surrounded by a square 4 on the J-edge side (to the left of the funeral 2-ku), that is, on the upper left side. It is formed. The proximal end of the visiting member 3 is shaped like a tip, and ifJ
As mentioned above, it will be sent to Suketobi 2. By having the rotational force k 〃11 in the king's capitulation, when the mental strength against twisting is gained within the ministry and it becomes less than a negative fit or one stroke, it is possible to rotate and shake off by the reaction, and it is possible to
It's also +n+i for historical purposes.

Referring to the third example, a Qi 6 is connected to the upper part of the underground burying agent 5. This chi 6v is from the retraction/effect 7 to the ground light' [if 8 is J! 1! Tied? Gas is sent to i-ya 9. These retracting stations 7 and 8 are equipped with a government cow 10, an elbow 11, and the like.

According to the internal access system 20 according to the present invention, the acquisition section 3 can enter the internal Vc of the internal section 5 from these vertical pipes 8 through the retracting section 7.

From Hikikomi Ei 7 to Qi 6) The evidence that the Ichigo gang is invading is as follows.
This is shown in the fourth factor. The song support material 2 is affected by the influence of the poem 4 and the membe 3, and therefore the visit haiku 3 is either progressed from the Qi 6 to the government 5 or becomes a matter of opinion to each station. If the drawing line No 2 is sitting down due to the poca of -111≦material 3,
While rotating the raw wire line around the first prefecture, the bare soil l?
11- By pushing, the jv5# holder 3 can enter the tube 5 while rotating and shaking off.

Also, as shown in Figure 435, l'fTj of 14
Even if ijf≦ is based on the plug 15, and the branching 16 near the plug 15 is connected, the in-tube communication according to the present invention, from the J420 i goods 14 to the 'i4' 16. It is possible to enter as shown by the arrow 17 (!-), and to help with this, it is possible to bore the hole 16 into the hole 14 as shown by the arrow 18.

Ichi Tano 11□j1♂ (J4 in question 3 is 4 I" le, so elbow, chi, 'M' 441
Seven J! j l1i)J
Monthly trading section 4a of 4th grade is a good place to catch it. This month 1 even part 4a
is caught at the leftmost position inside ', so that 1
(U stump ('A2 and Wang-ha 1 year old bullet 11 regular can C
Therefore, it's hard to beat. This is the song # ti
(, lA' 3 ``Z s ``Koshichi, who stands still in the step τ rice in E4', is Mf seller.

According to Tengai, the originator of the book, using 20 examples of official and private friendships, each individual gas was arrogant to J1, and was 92-93% mercenary. I was able to do a nude job, and the success rate was extremely high, and the amount of time it took to urinate was extremely short.

The 61st M-hunt was traced back to the 2015 JK, which was buried in the encirclement 54 and was buried in the encirclement 54. On the ground, a tributary stream '4' 56 is connected to the raw wire 1 of the Miyauchi line 2o and the wire 52 of the line 51. Sparrow 55 may be made of polyethylene. When ゛55 is a steel pipe with a hollow insulation layer,
l 00Kf (Z O As a result, the employment position of government school 55 will be transferred to ground floor 54.
You can find out above. That's it! -55 IvII
1 for rare, correct pig hole IJlli VCm +JIJ
Then, it is necessary to use 1g55 in the vertical hole. 7. When 155 is a branched heron, VC/-j will appear on the surface of the earth, and it will be possible to know the ronin rank of 20 in the camp.

The line 51 may be arranged outside the retaining material 1 and/or 1 (IJ aid 1 retaining material 2).

The Ginai Shinjuku J4, which follows the Kinoi, is not only the underground gas pipe tower, but also the cables installed in the Noh construction J domain wall and other gently ridged parts. Rurui can also be used as a self;

As an example of other husbands and princesses of Mizumotori J, the king and the dumbfounded one are Hl ((
It may be constituted by a coil spring having two reversely wound inner and outer structures.

As mentioned above, according to incompleteness (7), ' becomes 1 (becomes 1) so that the direction of approach of the inner rJJi urine break can be known.

[Brief explanation of the drawing]

Fig. 1C is a diagram of the present invention with a total of 0, and Fig. 2 is 1d.
It is said that the elbow sight near 3rd place of Tokube, and the 3rd place was made with a naked string (Yu)
1 for the precinct, funeral 4 fig.
10 [Kaida, evening 55 figure is bobo 14.16 n
Ji hunting 1) The work is explained in January~T1 Field map 1 Younger brother 6 Figure V
Maki 90's Kazuo Riki's work is a chestnut-like seat, but it's also a 4-year-old example.
1 open drawing. l ・２云tmiγJjも(shishi', 2...I(O rise,,Izumi(shi(,3...make noda fjlriwa, 4-
1M l'J 1kawa 14a-Mon 1 Kamoto, 51...Line agent Masu Kei Shikyo Kei (no change in engraving of some drawings) Procedural amendment (method) March 8, 1980 Tokusho Showa 58-219182 2. Method for detecting the name of the invention 3. Relationship with the case of the person making the amendment Applicant address name (028) Osaka Gas Co., Ltd. Representative 4, Agent address 1-13 Nishihonmachi, Nishi-ku, Osaka City No. 38 Emerging Disease Building International FAX GIIl&G [(06)538-02
47 February 28, 1981 (shipment date) 6. Specifications subject to amendment, drawings, and power of attorney 7. Contents of amendment (+) Engraving of specification and drawings (no change in content). (2) Supplement the power of attorney as shown in the attached sheet. that's all

Claims (1)

[Claims] The gold I14-made inner gambling mount, which has a humiliating member with an angular shape, is traced to α, and this internal supply is carried out by means of a magnetically insulating backing. The 0J flexible line along which the obtained tunnel is tentatively accumulated is υ, and one end of the calyx tunic is d in the V at or near the top of the calyx.
A method for detecting a tube, characterized in that an IL source is connected to the inside of the tube and the other end of the tube body, and an electromagnetic field is transmitted outside the tube.