JP2006297227A - Method and apparatus for cleaning inside of wire inserting pipeline - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To certainly wash the whole inner surface of a pipeline in a state that a cable is present in the pipeline. <P>SOLUTION: In a state that a washing tool 20 (30) having cable inserting holes 21 (31) and 41 and a scraping tool 40 are connected and the cable K is inserted in the cable inserting holes 21 (31) and 41, the washing tool 20 (30) and the scraping tool 40 are drawn from one end of the pipeline to the other end thereof. The pipeline P is internally sucked from its one end by a suction separating and recovering means 3 simultaneously with the traction of both tools to separate and recover sucked matter. Further, washing water is introduced into the pipeline P from the other end thereof by a washing water introducing means 2 while mixed with an air stream. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleaning device and a cleaning method for cleaning an inside of a pipeline for an incoming pipeline in which a cable is laid in the pipeline.

  For the cable laying in the ground or the like, a laying method using an incoming line for laying a cable in a pipe line installed in the laying area is generally adopted. In this incoming pipeline, maintenance of the pipeline is necessary to ensure the security of the cables laid in the pipeline, and renewal work such as inner surface repair for the old incoming pipeline It is necessary to apply.

  And, as an operation prior to performing such renewal work, cleaning work to remove foreign matter in the incoming pipeline or inner surface deposits such as rust is indispensable, but there is an endless cable in the pipeline. In the incoming line, there is a problem that the above-described cleaning operation cannot be sufficiently performed due to the presence of the cable.

  On the other hand, the following patent document 1 presents a cleaning device and a cleaning method for cleaning an underground pipe line in which a cable is laid. As shown in FIG. 1A, this prior art includes a supply hose J1 that is inserted from an open end in the underground pipe P and supplies a cleaning fluid into the pipe P, and a tip of the supply hose J1. And an injection nozzle J2 for injecting fluid into the pipe P, and further, a push rod J3 for pushing the supply hose J1 into the pipe P and the push rod J3 along the supply hose J1. And a fastening member J4 to be connected and held. According to this prior art, the injection nozzle J2 is inserted into the pipe P using the space in the pipe P where the cable K is laid, and high-pressure water is jetted forward or around from the injection nozzle J2 in the pipe. Wash. The ejected water and the object to be removed W in the pipe are sucked by the suction means and discharged outside the pipe.

Japanese Patent Laid-Open No. 10-286540

  In the above-described prior art, since the cable K partially blocks the injection direction of the high-pressure water injected from the injection nozzle J2, there is a problem that the shaded portion of the cable K cannot be sufficiently cleaned.

  Further, as shown in FIG. 1B, when there is a low place in the pipe of the pipe P disposed in the manhole M and the water Wa is accumulated in the low place, the spray nozzle is submerged in the water. Since the jet energy of the high-pressure water ejected from J2 is absorbed, there is a problem that the removal target attached to the inner surface of the pipe P cannot be effectively removed.

  Furthermore, the conventional method that relies solely on high-pressure water may not be able to completely remove deposits and rust that are firmly adhered to the inner surface of the pipeline, which may lead to the accuracy of repair work such as lining performed thereafter. It was a cause of lowering.

  An object of the present invention is to cope with such a situation. The entire surface of the pipeline can be reliably washed in a state where the cable is present in the pipeline, and water has accumulated in the pipeline. The pipes can be cleaned effectively, or the deposits and rust firmly adhered to the inner surface of the pipes are reliably removed, and the accuracy of the repair work performed thereafter The purpose is to improve the above.

  In order to achieve the above object, the present invention has the following features.

  One is a cleaning device that cleans the inside of an incoming pipeline in which a cable is laid in the pipeline, and an outer peripheral surface having an airflow forming surface that forms an airflow gap with the inner surface of the pipeline. A cleaning jig comprising a split body that opens the cable insertion hole, and a scraper that is attached to the outer peripheral surface and pressed against the inner surface of the pipe line. A scraping jig comprising a member and a cable insertion hole through which the cable is inserted along the central axis, and a split body that opens the cable insertion hole; and the cleaning jig and the scraping jig are connected to each other. A pulling means for pulling the cleaning jig and the scraping jig from one end of the conduit toward the other end in a state where the cable is inserted into each cable insertion hole, and one end of the conduit Installed in the pipe line A suction / separation / recovery means for sucking and separating and collecting aspirated material and a washing water introduction means that is attached to the other end of the pipe and mixes with an air flow to introduce the washing water into the pipe. It is characterized by.

  In addition, in addition to the above-described features, a conduction jig is connected to one or both of the front end and the rear end of the connected cleaning jig and the scraping jig, A cable insertion hole through which the cable is inserted along a central axis is provided. The cable insertion hole is formed of a divided body that opens the cable insertion hole, and the cable is held near the center of the pipe.

  In addition, in addition to the above-described features, a plurality of cleaning jigs having different forms of the airflow forming surface are connected.

  In addition, in addition to the above-described features, a sealing member that is in close contact with the outer periphery of the cable is provided on the inner periphery of the cable insertion hole of the cleaning jig.

  Further, in addition to the above-described features, the scraping member of the scraping jig is mounted in a plurality of rows along the axial direction of the pipe line, and each row has a predetermined interval. It is mounted and held, and the entire inner circumference of the conduit is scraped off by all the scraping members.

  Further, the cleaning method is for cleaning the inside of the incoming line in which a cable is laid in the pipe, the outer peripheral surface having an air flow forming surface that forms an air flow gap between the inner surface of the pipe and the central axis A cleaning jig formed of a split body that opens the cable insertion hole, and a scraping member that is attached to the outer peripheral surface and pressed against the inner surface of the conduit. A cable insertion hole through which the cable is inserted along the central axis, and a scraping jig made of a split body that opens the cable insertion hole, and the cleaning jig and the scraping jig are connected to each other. In the state where the cable is inserted into each cable insertion hole, the cleaning jig and the scraping jig are pulled toward the other end from the one end of the pipeline, and at the same time, from the one end side of the pipeline Suction in the pipeline The Rutotomoni aspirates separated and collected, and introducing the wash water into the pipe line by mixing the air stream from the other end of the conduit.

  In addition to the features of the cleaning method described above, the inner surface of the pipeline is washed with a mixed air-water flow that flows through the air gap, and the deposit on the inner surface of the pipeline is removed by a scraping process of the scraping member. Features.

  According to the cleaning device and the cleaning method in the incoming pipeline having such characteristics, the entire surface of the pipeline can be reliably washed in a state where the cable is present in the pipeline, and water is contained in the pipeline. Even in the accumulated situation, the inside of the pipeline can be effectively cleaned. Furthermore, the deposit | attachment, rust, etc. which adhered firmly to the pipe inner surface can be reliably removed, and the accuracy of repair work performed thereafter can be improved.

  Hereinafter, a cleaning device and a cleaning method in an incoming line according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 2 is an explanatory diagram showing the overall configuration of the cleaning device in the incoming line according to the embodiment of the present invention. Generally, the pipeline P (incoming pipeline) in which the cable K is laid is installed between the manholes M in the ground, and the endless cable K is laid in the pipeline P across the manhole M. Yes.

  At one end of such a pipe P, a split connecting pipe 4 is attached to the end of the pipe in the manhole M, and the cable K is kept airtight from the outlet hole of the connecting pipe 4. Has been pulled out. One end of a flexible connecting pipe 5 is connected to the connecting portion of the connecting pipe 4, and the other end is connected to a suction / separation recovery means 3 comprising a separation container 3A and a suction device 3B installed on the ground. .

  On the other hand, the other end side of the pipeline P is equipped with a traction device 1 (traction means) provided with a traction winch 1A on the ground, and the traction wire 1B is drawn from the other end of the pipeline P.

  Further, the cleaning water introducing means 2 is attached to the other end of the pipe P. This washing water introducing means 2 is provided with a split mounting pipe 2A having an introduction port 2a, and is mounted on the outer periphery of the end of the pipe P opened in the manhole M, and the introduction port 2a is opened in this end. I am letting. Further, a cleaning water tank 2B and a cleaning agent tank 2C attached as necessary are connected to the introduction port 2a via a valve 2D.

  In the pipeline P, the front conduction jig 10, the first cleaning jig 20, the second cleaning jig 30, the scraping jig 40, the rear conduction jig from the above-described manhole M on one end side. Each of the 50 cleaning jigs is inserted in a state of being connected by the connecting wire 60, and the front end of the front conduction jig 10 is connected to the pulling wire 1B and pulled. These jigs are pulled into the pipe P before the connection pipe 4 is mounted, and after the pull-in is completed, the connection pipe 4 is mounted on the end of the pipe P in an airtight manner.

  FIG. 3 is a cross-sectional view showing a state in the pipe P of each cleaning jig described above. The front conduction jig 10, the first cleaning jig 20, the second cleaning jig 30, the scraping jig 40, and the rear conduction jig 50 drawn into the pipe P are respectively connected to the pipe P at the center. Cable insertion holes 11, 21, 31, 41, 51 are provided. Each of these jigs is composed of a split body that can open the cable insertion holes 11, 21, 31, 41, 51, and the cable insertion holes 11, 21, in the manhole M on one end side of the pipe P. 31, 41, 51 are opened, and the cable K is inserted therethrough to integrate the respective divided bodies, and then the pipes P are drawn.

  Here, an example is shown in which the front conduction jig 10, the first cleaning jig 20, the second cleaning jig 30, the scraping jig 40, and the rear conduction jig 50 are sequentially connected. Not limited to this, it is possible to omit the front-side or rear-side conduction jigs 10 and 50 as necessary, or to omit either the first cleaning jig 20 or the second cleaning jig 30. . Further, the cleaning jigs 20 and 30 are not limited to two, and three or more members having the same or different forms of airflow forming surfaces described later may be connected. Further, the cleaning jig 20 (30) may be connected to the subsequent stage of the scraping jig 40, and the cleaning jigs 20 and 30 may be connected to both front and rear sides of the scraping jig 40.

  In the embodiment of the present invention, the first or second cleaning jig 20 (30) and the scraping jig 40 are connected, and the cable K is inserted through the cable insertion holes 21, 31, 41. It is one of the features that is pulled from one end of the pipe P toward the other end. At this time, the pulling direction by the pulling device 1 and the sucking direction by the suction device 3B are opposite to each other as indicated by arrows.

  The outline of the cleaning method using such a cleaning device will be described. The first or second cleaning jig 20 (30) and the scraping jig 40 are connected to each cable insertion hole 21 (31), 41. With the cable K inserted, these jigs are pulled from one end of the pipe P toward the other end. At the same time, the inside of the pipe line P is sucked from the one end side of the management P by the suction / separation collecting means 3 and the sucked material at that time is separated and collected. At that time, cleaning water or the like (mixed with a cleaning agent if necessary) is introduced into the pipe P by mixing with the air flow from the other end side of the pipe P.

  By such a construction method, the inner surface of the pipe P is washed with the air-water mixed flow that flows through the air gap formed on the outer periphery of the first or second cleaning jig 20 (30), and the scraping jig 40 is scraped off. The deposits on the inner surface of the pipe P can be removed by the treatment, and the washing water and deposits can be separated and collected by the suction / separation collection means 3.

  Hereinafter, the specific structure and function of each cleaning jig described above will be described in detail with reference to the drawings.

FIG. 4 is an explanatory view showing the above-described front-side or rear-side conduction jigs 10 and 50 (FIG. 4A is a partial sectional view taken along line A ₁ -A _{1 in} FIG. 4B, and FIG. _B 1 -B ₁ sectional view in FIG. (a)). Conductive jig 10 (50), half shaped divided bodies 10A, to form a cylindrical body and integrally 10B bolted like cable insertion hole 11 along its central axis O ₁₀ is formed Yes. The divided body 10A, the outer peripheral surface of 10B and guide spring 12 which protrudes around is attached, this by guide spring 12 abuts against the inner surface of the conduit P, the central axis O ₁₀ of the body conduit P It is almost coincident with the center. In the illustrated example, guide spring 12 is three rows disposed along the central axis O _10, are provided three at 120 ° intervals in each row.

  Further, tapered portions 11a are provided at the front and rear ends of the cable insertion hole 11 so that the cable K is not damaged at the corners of the end portions. A wire connecting portion 13 for connecting the pulling wire 1B or the connecting wire 60 is provided on the outer periphery of the main body described above.

  According to such a conduction jig 10 (50), the cable K can be held near the center of the pipe line P by inserting the cable K through the cable insertion hole 11. Then, the conduction jigs 10 and 50 are connected to the front and rear ends of the connected cleaning jigs 20 and 30 and the scraping jig 40, and these are inserted into the cable K, whereby the cleaning jig 20 30 and the cable K inserted into the scraping jig 40 can be held near the center of the pipe line, and the towing movement of the cleaning jigs 20 and 30 and the scraping jig 40 can be performed smoothly. Moreover, since the biasing of the cleaning jigs 20 and 30 and the scraping jig 40 is eliminated by the centering of the cable K, the cleaning jigs 20 and 30 and the scraping jig 40 can be uniformly applied to the entire surface of the pipe P. it can.

5A and 5B are explanatory views showing the first cleaning jig 20 described above (FIG. 5A is a partial cross-sectional view taken along the line A ₂ -A _{2 in} FIG. 5B, and FIG. _B 2 -B ₂ sectional view in a)). This washing jig 20, half shaped divided bodies 20A, 20B form a substantially cylindrical body so as to be integrated with bolting or the like, a cable insertion hole 21 is formed along the center axis O ₂₀ . A guide spring 22 that protrudes to the periphery is attached to the outer periphery of each of the divided bodies 20A and 20B. The guide spring 22 abuts on the inner surface of the pipe P, so that the central axis O ₂₀ of the main body is placed in the pipe P. It is almost coincident with the center. In the illustrated example, guide spring 22 is provided in two rows along the central axis O _20, are provided three at 120 ° intervals in each row. Further, tapered portions 21a are provided at the front and rear ends of the cable insertion hole 21, so that the cable K is not damaged at the corners of the end portions. A wire connecting portion 23 for connecting the pulling wire 1B or the connecting wire 60 is provided on the outer periphery of the main body described above.

In the cleaning jig 20, the outer peripheral surface of the main body has an air flow forming surface 20 a that forms an air flow gap S ₁₀ with the inner surface of the pipe line P. Thus, by moving the arrow Dr direction by pulling the body and from that sucks in the opposite direction of the arrow Va direction, air flow formed along the air flow forming surface 20a is faster flows into the air flow gap S _10, The inner surface of the pipe P is sequentially washed by the increased speed of the air-water mixed flow.

In this case, the gap width of the airflow gap S ₁₀ is important, this is the outer diameter of the main body so that the width to form the desired high-speed cleaning air stream is set. In addition, the airflow forming surface 20a can be set in various forms to form a desired airflow state, but in the illustrated example, a convex curved surface is formed so that the flow along the inner surface of the pipe P is formed. To be formed.

Furthermore, a seal member 24 that is in close contact with the outer periphery of the cable K is provided on the inner periphery of the cable insertion hole 21 as necessary. By providing the sealing member 24, it is possible to shield the air flow passing through through the gap of the cable insertion hole 21, so as to be able to reliably faster air flow in the air flow gap S _10.

FIG. 6 is an explanatory view showing the above-described second cleaning jig 30 (FIG. 6A is a partial cross-sectional view taken along line A ₃ -A _{3 in} FIG. 6B, and FIG. _B 3 -B ₃ cross-sectional view in a)). The cleaning jig 30 has substantially the same structure as the first cleaning jig 20 described above, and the divided bodies 30A and 30B, the cable insertion hole 31, the taper portion 31a, the guide spring 32, the wire connecting portion 33, the seal The members 34 correspond to the divided bodies 20A and 20B, the cable insertion hole 21, the taper portion 21a, the guide spring 22, the wire connecting portion 23, and the seal member 24, respectively, and thus redundant description is omitted.

  The second cleaning jig 30 is different from the first cleaning jig 20 in the form of the air flow forming surface 30a. In this example, the airflow which collides with the inner surface of the pipe line P is formed by having a concave curved surface. As a result, a higher pressure acts on the inner surface of the pipe P, so that a cleaning action different from that of the first cleaning jig 20 can be obtained.

FIG. 7 is an explanatory view showing the above-described scraping jig 40 (FIG. 7A is A ₀₁ -A ₀₁ , A ₀₂ -A ₀₂ , A ₀₃ -A in FIGS. 7B to 7D). _{03 is a} partial cross-sectional view, and FIGS. 7B to 7D are cross-sectional views of B ₀₁ -B ₀₁ , B ₀₂ -B ₀₂ , and B ₀₃ -B _{03 in} FIG. The scraping jig 40 is half-shaped divided bodies 40A, to form a cylindrical body and integrally 40B bolted like cable insertion hole 41 is formed along the center axis O ₄₀ . A scraping member 42 protruding to the periphery is attached to the outer periphery of each of the divided bodies 40A and 40B, and the scraping member 42 abuts on the inner surface of the pipe P, so that the central axis O ₄₀ of the main body is connected to the pipe. It almost coincides with the center in the path P.

In the illustrated example, the scraping members 42 are provided in three rows along the central axis O ₄₀ , and six are provided at 60 ° intervals in each row. Further, the attachment position is shifted by 20 ° around the central axis O ₄₀ for each row.

  Further, tapered portions 41a are provided at the front and rear ends of the cable insertion hole 41 so that the cable K is not damaged at the corners of the ends. A wire connecting portion 43 for connecting the pulling wire 1B or the connecting wire 60 is provided on the outer periphery of the main body described above.

  According to this scraping jig 40, the scraping member 42 comes into contact with the inner surface of the pipe P after being cleaned by the cleaning jig 20 (30) or before being cleaned with a predetermined pressure, and the main body is pulled. Therefore, it is possible to scrape and remove deposits and rust attached to the inner surface of the pipe P.

  At this time, the scraping member 42 is arranged in such a manner that the scraping member 42 is mounted in a plurality of rows along the axial direction of the pipe line P, and is mounted at a predetermined interval in each row. The entire circumference of the inner surface of the pipe P can be processed by the removing member 42. Thus, the scraping member 42 can be prevented from blocking the air flow generated by the suction, and the entire inner circumference of the pipe line P can be surely scraped off.

  The actions of the cleaning device and the cleaning method according to the embodiment of the present invention are summarized as follows.

(1) When the cable K is inserted into the cable insertion holes 21, 31, 41 of the cleaning jigs 20, 30 and the scraping jig 40, the cable K in the pipe P is held at a substantially central position of the pipe P. However, since the cleaning jigs 20 and 30 and the scraping jig 40 have a working surface for cleaning or scraping processing on their outer peripheral surfaces, the cleaning jigs 20 and 30 and the scraping jig 40 are independent of the presence of the cable K. The entire surface of the pipe P can be reliably cleaned by the scraping jig 40.

(2) Since the cleaning jigs 20 and 30 and the scraping jig 40 are composed of the divided bodies 20A, 20B, 30A, 30B, 40A, and 40B that open the cable insertion holes 21, 31, and 41, the pipe line P is endless. For the cable K laid in the cable P, the cable insertion holes 21, 31, 41 are opened at the ends of the pipe P, and the cable K is installed in the cable insertion holes 21, 31, 41. The cable K can be inserted through the cleaning jigs 20 and 30 and the scraping jig 40.

(3) by moving the suction in the conduit acting in a direction opposite to the direction of movement of the cleaning jig 20, 30 by pulling, the air flow gap _{S 10} of the cleaning jig 20, 30 with the air flow forming surface 20a, a 30a effective fast cleaning air flow can be generated in, it means that the steam-water mixture flow passes on its airflow gap S _10, the conduit along its outer peripheral surface by the passage of cleaning jigs 20, 30 Effective cleaning of the inner surface of P becomes possible.

(4) Further, when a plurality of cleaning jigs 20 and 30 having different forms of the air flow forming surfaces 20a and 30a are connected and used, stepwise cleaning such as primary cleaning and secondary cleaning is performed according to the form. More effective cleaning is possible.

(5) Further, if seal members 24 and 34 that are in close contact with the outer periphery of the cable K are provided on the inner peripheral surfaces of the cable insertion holes 21 and 31 of the cleaning jigs 20 and 30, the flow passes through the cable insertion holes 21 and 31. it is possible to shield the air flow, can be faster the steam-water mixture flow through the air flow gap S _10, it is possible to more effective cleaning.

(6) By pulling the scraping jig 40 by being connected to the cleaning jigs 20 and 30, the scraping member 42 pressed against the inner surface of the pipe P is slid and firmly attached to the inner surface of the pipe P. Adhered deposits and the like can be reliably removed. At this time, by connecting the scraping jig to the rear stage of the cleaning jig 20 in the pulling direction, it is possible to effectively remove the strong deposit that has not been removed after the cleaning. Further, the cleaning jigs 20 and 30 may be connected after the scraping jig 40, and in that case, the deposits that are difficult to fall off are removed in advance by the scraping jig 40, and the inner surface after that is cleaned. , 30 can be cleaned, so that the cleaning effect of the inner surface can be enhanced by the cleaning jigs 20, 30.

(7) Further, if the cleaning jigs 20 and 30 are connected to both the front and rear sides of the scraping jig 40, post-processing after the scraping process can be performed by the cleaning jig 30, so that the scraped deposits can be removed. It is possible to reliably remove the inner surface of the pipe P and form a surface suitable for the subsequent repair or the like.

(8) The scraping member 42 of the scraping jig 40 is mounted in a plurality of rows along the axial direction of the pipe line P, and the scraping members 42 are mounted at predetermined intervals in each row, and all scraping members are mounted. By scraping the entire inner circumference of the pipe line P by 42, it is possible to prevent the scraping member 42 from blocking the airflow generated by the suction, and to reliably treat the entire inner circumference of the pipe line P.

(9) Furthermore, the conduction jigs 10 and 50 are connected to the front and rear ends of the connected cleaning jigs 20 and 30 and the scraping jig 40, and these are inserted into the cable K to perform cleaning. The cable K inserted through the jigs 20 and 30 and the scraping jig 40 can be held near the center of the pipe P, and the cleaning jigs 20 and 30 and the scraping jig 40 are smoothly pulled and moved. be able to. Moreover, since the biasing of the cleaning jigs 20 and 30 and the scraping jig 40 is eliminated by the centering of the cable K, the cleaning jigs 20 and 30 and the scraping jig 40 can be uniformly applied to the entire surface of the pipe P. it can.

(10) Further, even in a situation where water is accumulated in the pipe line P, the water is removed by suction, so that the cleaning effect is not deteriorated. And since the suction | inhalation suction | inhalation (washing water, a to-be-removed object, etc.) attracted | sucked is isolate | separated from airflow and collect | recovered, the inside of the manhole M installed in the edge part of the pipe line P is not soiled.

It is explanatory drawing of a prior art. It is explanatory drawing which shows the whole structure of the cleaning apparatus in the entrance line which concerns on embodiment of this invention. It is sectional drawing which shows the state in the pipe line of each cleaning jig in embodiment of this invention. Is an explanatory view showing a conduction jig in the embodiment of the present invention (B in FIG. (A) is A ₁ -A ₁ partial sectional view in FIG. (B), FIG. (B) the figure (a) _1- B ₁ sectional view). Is an explanatory view showing a first cleaning jig in the embodiment of the present invention (FIG. (A) is A ₂ -A ₂ partial cross-sectional view in FIG. (B), FIG. (B) the drawing (a ) _B 2 -B ₂ sectional view in). Is an explanatory view showing a second cleaning jig in the embodiment of the present invention (FIG. (A) is A ₃ -A ₃ partial cross-sectional view in FIG. (B), FIG. (B) the drawing (a ) _B 3 -B ₃ cross-sectional view in). _A 01 _-A 01 in an explanatory diagram showing a scraping jig in the embodiment of the present invention (FIG. (A) the figure _{(b) ~ (d),} A 02 -A 02, A 03 -A 03 Partial sectional views, (b) to (d) are B ₀₁ -B ₀₁ , B ₀₂ -B ₀₂ , B ₀₃ -B ₀₃ sectional views in FIG.

Explanation of symbols

1 Towing device (traction means)
DESCRIPTION OF SYMBOLS 1A Towing winch 1B Pulling wire 2 Washing water introduction means 2a Inlet 2A Mounting pipe 2B Washing water tank 2C Cleaning agent tank 2D Valve 3 Suction / separation recovery means 3A Separation container 3B Suction device 4 Connecting pipe 10, 50 Conducting jig 11, 21, 31, 41, and 51 cable insertion hole 20, 30 cleaning tool 20a, 30a airflow surface 40 scraping jig 60 connecting wire P line K cable M manhole S ₁₀ airflow gap _{O 10, O 20, O 30} , O ₄₀ central shaft 10A, 10B, 20A, 20B, 30A, 30B, 40A, 40B Split body 12, 22, 32 Guide spring 13, 23, 33, 43 Wire connecting portion 24, 34 Seal member 42 Scraping member

Claims (7)

A cleaning device for cleaning an inside of an incoming line where a cable is laid in the pipeline,
An outer peripheral surface having an air flow forming surface that forms an air flow gap between the inner surface of the conduit and a cable insertion hole for inserting the cable along a central axis, and comprising a divided body that opens the cable insertion hole. A cleaning jig;
A scraping member comprising a scraping member attached to the outer peripheral surface and pressed against the inner surface of the pipe line and a cable insertion hole for inserting the cable along the central axis, and comprising a divided body for opening the cable insertion hole. Ingredients,
The cleaning jig and the scraping jig are connected to each other and the cable is inserted into the cable insertion holes, and the cleaning jig and the scraping jig are connected from one end to the other end of the conduit. Towing means for towing,
A suction / separation recovery means attached to one end of the pipe, for sucking the inside of the pipe and separating and collecting the sucked material;
Washing water introducing means mounted on the other end of the pipe and mixed with an air flow to introduce wash water into the pipe;
A cleaning device in an incoming line. Connecting a conduction jig to one or both of the front end and the rear end of the connected cleaning jig and the scraping jig,
The conduction jig includes a cable insertion hole through which the cable is inserted along a central axis, is formed of a divided body that opens the cable insertion hole, and holds the cable near the center of the pipe. A cleaning device in an incoming line according to claim 1.   The cleaning device in an incoming line according to claim 1 or 2, wherein a plurality of cleaning jigs having different forms of the air flow forming surface are connected.   The cleaning device for an inside of an incoming line according to any one of claims 1 to 3, wherein a sealing member that is in close contact with the outer periphery of the cable is provided on the inner periphery of the cable insertion hole of the cleaning jig.   The scraping member of the scraping jig is mounted in a plurality of rows along the axial direction of the pipe line, and is mounted with a predetermined interval in each row, and the scraping member is attached by all the scraping members. The cleaning device in an incoming line according to any one of claims 1 to 4, wherein the entire inner circumference of the pipe is scraped off. A cleaning method for cleaning the inside of an incoming pipeline where cables are laid in the pipeline,
An outer peripheral surface having an air flow forming surface that forms an air flow gap between the inner surface of the conduit and a cable insertion hole for inserting the cable along a central axis, and comprising a divided body that opens the cable insertion hole. A split body that includes a cleaning jig, a scraping member that is attached to the outer peripheral surface and pressed against the inner surface of the pipe line, and a cable insertion hole that passes the cable along the central axis, and that opens the cable insertion hole Using a scraping jig consisting of
The cleaning jig and the scraping jig are connected to each other and the cable is inserted into the cable insertion holes, and the cleaning jig and the scraping jig are connected from one end to the other end of the conduit. While pulling towards
The inside of the pipe line is sucked from one end side of the pipe line, the sucked material is separated and collected, and mixed with an air flow from the other end side of the pipe line to introduce cleaning water into the pipe line. Cleaning method inside incoming line.   The inlet pipe according to claim 6, wherein the inner surface of the pipe line is washed with a mixed flow of air and water flowing through the air gap, and deposits on the inner surface of the pipe line are removed by a scraping process of the scraping member. Cleaning method in the street.

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