JP2009210548A - Continuity measuring device and continuity measurement method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuity measuring device and a continuity measurement method using it which enable reduction of construction period and cost, by enabling photographing of the inside of a conduit and enabling measurement of the inside diameter of the conduit, to improve accuracy and agility at the continuity measurement of the conduit. <P>SOLUTION: The continuity measuring device includes: a body which is put inside the conduit; a camera which is connected to one end of the body, photographs the inside of the conduit, and transmits the information; a lid part which is coupled to the body through two or more support bars, and shrinkably and expandably disposed; a sensor part which is disposed on the side of the body to measure the inside diameter of the conduit by the expansion and shrinkage of the lid part, and to transmit the information; and a storage part which stores the information from the camera and the sensor part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a continuity measuring instrument and a continuity measuring method using the continuity measuring instrument, and more particularly to a continuity measuring instrument capable of accurately measuring the internal state of a pipeline and a continuity measuring method using the continuity measuring instrument.

  In general, in the electric power industry, it is necessary to consider the sustainable achievement of the national economic development plan for many years, and to consider the construction scale, permanent or simple facilities, etc. according to the major urban development plans of each local government. I must. In addition, in many cases, corrugated pipes are constructed in accordance with the plans of related organizations such as the power utilities, telecommunications corporations, city gas corporations, waterworks offices, rain drain pipes of ward offices, etc. During this period, land subsidence or ground deformation occurs, and the corrugated tube is often distorted, subsidized, or impregnated.

  In the conventional continuity measurement method, the continuity bar that is about 10 mm smaller than the pipe diameter is moved from one side of the corrugated tube to the other while only the presence or absence of clogging of the corrugated tube is detected. Therefore, there is a problem that diagnosis is impossible when a conducting rod having a different diameter has to be used or the corrugated tube is torn or distorted.

  On the other hand, when moving a conducting rod having a diameter smaller than the diameter of the corrugated tube from one side of the corrugated tube to the other side to check whether the corrugated tube is clogged, install a cable etc. There is a high risk that a sufficient space cannot be secured, stress is applied to the cable, and a large accident due to an electrical failure is caused.

  In addition, since the construction manufacturer conducts corrugated tube continuity measurement and cable installation by himself, not only is it difficult to expect accurate and fair results, but there is no construction work document remaining, and whether continuity measurement is present or not is confirmed. I couldn't.

  In addition, if the corrugated pipe for electricity or communication buried underground due to civil engineering work or ground subsidence is partially distorted or damaged, or if a large amount of soil or foreign material accumulates in the corrugated pipe, the original function cannot be demonstrated. In addition, when performing the measurement work of the diameter and length in the corrugated tube in order to repair this, it is necessary to search for the damaged part by inserting a conducting rod having a different diameter into the corrugated tube several times, Not only is it impossible to make precise measurements, but there is a problem that it takes a lot of work time and labor.

  In addition, since a standardized conducting bar is used, when the state of the corrugated tube is poor, several continuity measurements must be performed using a plurality of conducting bars each having a different diameter. In addition to being inconvenient, it was not possible to confirm whether or not the radius of curvature of the corrugated pipe and the state of the connecting portion between the straight pipe and the corrugated pipe were deformed at the time of embedding construction (or after construction).

  Moreover, if the corrugated tube is in poor condition, excavation work using an excavator must be performed to replace the corrugated tube, which increases the construction period and costs the replacement of the corrugated tube. was there.

  The present invention is to solve the above-mentioned conventional problems, and its purpose is to enable internal photographing and inner diameter measurement of a pipeline, to improve accuracy and quickness when measuring the continuity of the pipeline, Another object of the present invention is to provide a continuity measuring device and a continuity measuring method using the continuity measuring device which are intended to reduce costs and reduce costs.

  In order to achieve the above object, a continuity measuring device according to the present invention includes a body that is inserted into a pipeline, a camera that is connected to one end of the body and that captures the inside of the pipeline and transmits the information. A lid portion connected to the body via a plurality of support bars and provided so as to be able to expand and contract; and for measuring the diameter of the inside of the pipe line by the expansion and contraction of the lid portion and transmitting the information. In addition, a sensor unit provided on a side surface of the body and a storage unit that stores information from the camera and the sensor unit are provided.

  In addition, the continuity measuring method according to the present invention includes a step of inserting a continuity measuring instrument inside a pipe, and photographing, measuring and transmitting the state and diameter inside the pipe while moving the continuity measuring machine. Measuring the moving distance of the continuity measuring device thrown into the inside of the pipe, and storing the state, diameter and moving distance inside the pipe in an external storage unit. It is characterized by that.

  The continuity measuring machine and the continuity measuring method using the same according to the present invention have the following effects.

  First, since the inside of the pipeline is photographed using a camera connected to the body, it is possible to grasp the piping status of the pipeline, the presence / absence of foreign matter, the presence / absence of deformation, and the like, and environmental information in the pipeline can be obtained.

  Second, since the diameter of the pipeline is measured in real time using the sensor attached to the side surface of the body, it is possible to accurately grasp the pipeline portion where the abnormality has occurred.

  Third, since a distance measuring machine is installed at the front end of the pipe connecting member that connects the pipes to measure the distance traveled by the movement of the body, the position of the damaged pipe line part must be measured and stored. Can do.

  On the other hand, by storing the measurement distance separately using a distance measuring device, if an abnormality occurs in the pipeline, the exact point can be confirmed, and the corrector is inserted and corrected without another excavation work As a result, the construction period is shortened.

  Fourth, if there is an abnormality in the pipeline, an excavator or straightening machine will be inserted into the pipeline to repair the pipeline, so equipment and labor by excavating roads and replacing pipelines will be reduced, and construction costs will be reduced. Can be reduced.

  Fifth, the measurement results of the measured diameter, internal state, distance, etc. of the pipe line can be stored in another storage medium, and can be usefully used whenever necessary.

  Hereinafter, a continuity measuring machine according to the present invention and a continuity measuring method using the same will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a continuity measuring device according to the present invention, FIG. 2 is a side view showing a camera attached to the continuity measuring device of FIG. 1, and FIG. 3 is a continuity measuring device of FIG. It is a side view which shows a mode that the sensor part was attached in the machine, and FIG. 4 is a figure which shows the distance measuring machine comprised in the edge part of a pipe-line connection member.

  As shown in FIGS. 1 to 4, a continuity measuring device 100 according to the present invention is connected to a body 110 to be inserted into a conduit 10 (FIG. 5), and one end of the body 110, and moves while the conduit 10 is moving. A camera 120 that shoots the inside and transmits the information, and is connected to the body 110 via a plurality of support bars 131 that are arranged at a certain distance from the body 110 and extend outward from the body. A lid portion 130 that can be configured, a sensor portion 140 that is configured on at least one side of the body 110 in order to measure and send the diameter of the inside of the pipe line 10 by expanding and contracting the lid portion 130, and a camera. 120 and a storage unit 150 that stores information from the sensor unit 140. Expansion and contraction means that the measuring instrument 100 is extended or contracted in the outer diameter direction when viewed in its cross section. To change the language is to make it thicker or thinner.

  Here, the conduit 10 can be a corrugated tube, a straight tube, or the like, and a preferred embodiment of the present invention will be described as a corrugated tube.

  The continuity measuring device 100 further includes a display unit 160 that displays information captured by the camera 120 and information measured by the sensor unit 140.

  Connection wheels 170 are formed at both ends of the body 110 so that a string 171 such as a wire can be connected.

In particular, the connecting wheel 170 on the side where the camera 120 is mounted has a plurality of holes formed on the outer periphery of the camera 120.
Both ends of the lid 130 are bent toward the inside and the body so that the lid 130 can move smoothly inside the pipe.

  The continuity measuring machine according to the present invention is capable of measuring any standard pipe 10 such as a distribution pipe, a power transmission pipe, a communication pipe, etc., and can freely adjust the size according to the diameter of the pipe. Therefore, the lid 130 is provided with a streamline shape and elasticity in the radial direction.

  The support bar 131 includes a fixed support frame 132 on the body side. The fixed support frame 132 is formed so as to surround the body 110 in an annular shape so that it can move left and right along the body 110 when the lid 130 is expanded and contracted.

  The body 110 between the fixed support frames 132 is provided with a buffer spring 133 so that the fixed support frame 132 moves smoothly when the lid 130 is expanded and contracted. When the continuity measuring device 100 moves, the lid 130 is smoothly expanded and contracted according to the diameter of the pipe line 10 by the spring 133.

  As shown in FIG. 4, a pipe connecting member 20 for connecting the pipe 10 into which the body 110 is inserted is configured. A distance measuring device 180 is provided at the front end of the pipe connecting member 20 to measure the moving distance when the body 110 moves inside the pipe. The distance measuring device 180 has a portion in which a string is wound around a roller-shaped member, and when the continuity measuring device 100 moves by pulling the string connected to the connecting wheel 170 from the other side, Rotates and displays the distance that the string moves.

  The pipe connecting member 20 is made of a hard material such as plastic in order to prevent deformation of the inlet of the pipe 10.

  By measuring the moving distance of the body 110 by the distance measuring device 180 and storing it in the storage unit 150, an abnormal portion of the pipe line embedded based on the result measured by the camera 120 or the sensor unit 140 After that, the corrector or excavator can be put in and repaired at the part where the abnormality has occurred in the pipeline without further excavation work.

  The sensor unit 140 has a waterproof surface. By using the sensor unit 140 that has been waterproofed, the sensor unit 140 can be smoothly operated even inside the pipeline 10 into which water has flowed.

  On the other hand, the distance measured by the distance measuring device 180 can be stored in the storage unit 150 together with the results measured by the camera 120 and the sensor unit 140.

  The camera 140 is detachably attached to the body 110, and the inside of the pipeline is photographed with a moving image and transmitted to the storage unit 150, and the internal state of the pipeline can be monitored via the display unit 160. Of course, only the accident point and other necessary parts can be easily photographed during photographing, which is performed by remote control.

  The continuity measuring device according to the present invention configured as described above is inserted into the conduit of an electric cable or a communication cable buried underground, and a distorted portion or breakage of the conduit using the camera 120 and the sensor unit 140. The grasped portion is grasped, and the position of the grasped portion is accurately grasped using the distance measuring device 180.

  According to the continuity measuring device 100 of the present invention, the damage state and the position inside the pipe line are grasped from the outside, and at the same time, the position of the damaged portion and The inner diameter can be accurately displayed numerically.

  After the continuity measuring machine according to the present invention is taken out, when the pipe line needs to be repaired, the straightening machine or the excavator is put into the pipe line to repair the pipe line.

  Therefore, another excavation work is omitted, and the construction time can be shortened.

  Next, the operation of the continuity measuring apparatus according to the present invention configured as described above will be described with reference to FIG. FIG. 5 is a schematic diagram for explaining an operation process of the continuity measuring apparatus according to the present invention.

  As shown in FIG. 5, the continuity measurement method according to the present invention is a continuity measurement in order to check the inside of the pipeline to determine whether the pipeline is clogged, distorted or damaged before installing a cable such as an electric wire. The machine is thrown into the pipeline from one side or the other side of the pipeline.

  First, an operator is placed in manholes at both ends of the pipe line for conducting the continuity measurement, and a string 171 capable of measuring the distance is passed through the pipe line 10.

  Subsequently, the connecting wheel 170 of the continuity measuring device 100 including the camera 120, the sensor unit 140, and the lid unit 130 is connected to the string 171, and the operator pulls the string from the opposite side of the conduit 10 to measure the continuity. The machine 100 is passed through the pipe 10. Thus, when the continuity measuring device 100 passes through the inside of the pipe line 10, the diameter of the pipe line 10 is measured for each position of the pipe line 10.

  The camera 120 attached to the continuity measuring device 100 takes an image of the inside of the pipe line 10 that cannot be confirmed with the naked eye, and accurately displays the pipe line conditions such as inflow, distortion, cutting and damage of external substances. Enables a simple diagnosis.

  Therefore, while the continuity measuring device 100 moves from one side of the pipeline 10 to the other side, the state inside the pipeline 10 is transferred to the display unit 160 and the storage unit 150 installed outside. At this time, the lid 130 provided so as to be able to expand and contract in the body 110 according to the internal state of the conduit 10 is expanded and expanded according to the expansion and contraction of the support according to the diameter of the conduit 10 while moving. By repeating the reduction, the sensor unit 140 measures the diameter of the pipe line 10 according to the expanded and reduced state of the lid 130 and transfers the measured diameter to the display unit 160 and the storage unit 150.

  That is, as described above, the lid portion 130 can be expanded and reduced, and passes in a reduced state in the region of the narrow diameter pipe line 10, and the diameter of the reduced portion at this time is determined by the sensor portion 140. Then, the lid portion 130 is unfolded in the region of the pipe line 10 having a large diameter, and the sensor part 140 also measures and sends the diameter of the pipe line 10 at this time.

The measurement of the diameter of the pipe line 10 by the sensor unit 140 is measured in real time when passing through the pipe line 10 of the continuity measuring device 100 and is displayed on the display unit 160.
Further, the continuity measuring device 100 according to the present invention can be expanded and reduced, and the diameter thereof is enlarged and reduced. Therefore, the continuity measurement can be performed by introducing it into pipes having various diameters.

  The distance measuring device 180 provided at one end of the pipe is for measuring the distance traveled by the continuity measuring device 100, and the distance traveled is indicated by a number.

  The diameter of the pipeline 10 sent from the camera 120 and the sensor unit 140 and the moving distance of the pipeline 10 sent from the distance measuring unit 180 can be converted into data with objective numerical values.

  And by storing the information converted into numerical data in the storage unit 150 in this way, it can be used effectively when necessary, and whether or not the construction can proceed can be confirmed.

  On the other hand, when distortion occurs in the pipeline, the pipeline is applied using the “underground pipeline corrector” filed on November 9, 2001 (Korean Application No. 10-2001-0069639). Expand and repair distorted parts. In this case, the correction process may be taken by the camera 120 and stored as the basis material.

  If the pipe line 10 is torn, the body 110 is taken out, covered with the soldering material so as to surround the correction part, and then again introduced into the pipe line, and then the correction part is expanded and corrected. The substance covered by the part adheres to the broken pipe part.

  FIG. 6 is a side view showing a state in which a cutting tool is attached to the continuity measuring machine according to the present invention.

  As shown in FIG. 6, when the inside of the pipe line is clogged, the body 110 is taken out and the camera 120 is removed from the body 110, and then a cutting tool 190 such as a drill is attached to the body 110 to put the inside of the pipe line. Then, the cutting tool 190 is rotated to open the clogged portion of the pipe line 10. At this time, the drill is operated by the air generated from the compressor, and the drill rotates with the inflow of air to break up foreign matters including concrete coal tar and fixed soil, and clog the pipeline.

  Although the present invention has been described above with reference to specific embodiments and drawings, the present invention is not limited to these specific examples, and various substitutions and modifications can be made without departing from the technical idea of the present invention. It will be apparent to those skilled in the art to which the present invention pertains that changes can be made.

It is a perspective view which shows the continuity measuring device by this invention. It is a side view which shows a mode that the camera was attached in the continuity measuring machine of FIG. It is a side view which shows a mode that the sensor part was attached in the continuity measuring machine of FIG. It is a figure which shows the distance measuring machine comprised in the edge part of a pipe-line connection member. It is the schematic for demonstrating the operation | movement process of the continuity measuring device by this invention. It is a side view which shows a mode that the cutting machine was attached in the continuity measuring machine by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Continuity measuring device 110 Body 120 Camera 130 Cover part 140 Sensor part 150 Storage part 160 Display part 170 Connecting wheel 180 Distance measuring machine

Claims (7)

A body thrown into the pipeline,
A camera connected to one end of the body, photographing the inside of the conduit and transmitting the information;
A lid portion connected to the body via a plurality of support bars and provided so as to be expandable and contractible;
A sensor part provided on the side of the body for measuring the diameter of the inside of the duct by transmitting and reducing the lid part and transmitting the information;
A storage unit for storing information from the camera and the sensor unit;
A continuity measuring machine comprising:   The continuity measuring device according to claim 1, further comprising a display unit that displays information on the camera and the sensor unit to the outside. A fixed support frame is provided on the support bar;
The said fixed support frame is comprised so that it may surround the said body annularly so that it can move right and left along the said body at the time of expansion | deployment and reduction of the said cover part. Continuity measuring machine.   The continuity measuring device according to claim 1, further comprising a distance measuring unit that is provided at a front end of the pipe and that measures a distance by which the body is moved into the pipe. Introducing a continuity measuring device inside the pipe line;
Shooting the state and diameter inside the pipe line while moving the continuity measuring machine, measuring and transmitting to the outside,
Measuring the movement distance of the continuity measuring instrument thrown into the pipe line;
Storing the internal state and diameter of the pipe line and the moving distance in an external storage unit;
The continuity measuring method characterized by including.   6. The continuity measuring method according to claim 5, further comprising a step of displaying a state inside the pipe line to the outside. Analyzing the cause after grasping the state inside the pipeline; and
The continuity measuring method according to claim 5, further comprising a step of supplying a maintenance / repair machine for maintenance / repair when there is an abnormality in the pipeline as a result of the cause analysis.

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