KR100704156B1 - Device for measuring deformation of pipe route - Google Patents

Abstract

The present invention relates to a pipe strain measurement device, one end is provided with a ring portion 11 is connected to the wire 50 for movement in the pipeline 70 and the other end is provided with a flange 12 structure An outer body 10 having a hollow portion formed therein; A pneumatic cylinder 13 which is stably fixed to an inner hollow portion of the outer body 10; One end is connected to the piston rod of the pneumatic cylinder 13 can be reciprocated in the inner hollow portion of the outer body 10 and the other end is provided with a ring portion 21 is connected to the wire 50 An inner body 20 having male threads formed to a predetermined length on an outer circumference thereof; A female ring is formed on the inner side for screwing the male threaded line of the inner body 20 and an adjustment ring having an insertion hole into which a fixing piece 31 for stopping the reciprocating motion of the inner body is inserted on one side thereof ( 30); An arm member 41 having a predetermined number of fixing members 40 fixed to the inner and outer bodies 10 and 20 and one end of which is hinged to the fixing member 40 and the other end of which is coupled to the roller 42. And by combining the arm member 41 with each other to form a fastening piece 43 to facilitate deployment and folding by intersecting with each other, in order to check whether the allowable strain exceeding the allowable strain of the present invention first put the measuring device of the present invention in the pipeline If only the part exceeding the allowable strain is confirmed, selectively input the equipment to measure the deformation amount of the existing pipe as needed to prevent unnecessary expensive equipment input, thereby reducing the cost of measurement work. It works.

Description

Pipeline strain measuring device {DEVICE FOR MEASURING DEFORMATION OF PIPE ROUTE}

Figure 1a, b is a perspective view showing an embodiment of a pipeline deformation measuring apparatus according to the present invention.

Figure 2 is a cross-sectional view in a state in which the pipeline deformation measuring apparatus according to the present invention is put into the pipeline.

Figure 3 is a longitudinal cross-sectional view in a state in which the pipeline deformation measuring apparatus is put into the pipeline.

Figure 4 is a working state using the pipeline strain measuring apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: outer body 11, 21: ring portion

12: Flange 13: Pneumatic cylinder

20: inner body 22: measuring instrument

30: adjustment ring 31: fixing piece

40: fixing member 41: arm member

42: roller 43: fastening piece

50: wire 60: distance measuring device

70: pipeline 71: manhole vertically

80: power source 100: pipeline strain measuring device

The present invention relates to a pipe strain measurement device, and more particularly, in order to check whether the pipe strain exceeds the allowable strain rate, the present invention is preferentially inputted only when the part exceeding the allowable strain rate in the pipe is identified. As the equipment for measuring the deformation amount of the existing pipe is added as needed, it is possible to prevent unnecessary expensive equipment from being introduced, thereby reducing the cost of measurement work. It is easy to remove and can significantly reduce the time required to check whether the pipe is deformed, and can be applied to various diameters by deploying or folding the arm member according to the diameter as well as physically by inputting the measuring device of the present invention. The error that can be caused by the equipment The present invention relates to a pipe strain measuring device having no reliable measurement.

Generally, underground pipes used to communicate fluids such as sewage, sewage, or waste water use flexible pipes made of fume pipes or steel, or flexible pipes made of synthetic resins that have a long life and hardly catch foreign substances. Will be used.

These flexible pipes have the advantage of preventing breakage or damage even if some ground behavior occurs through the ductility action, but because the soil is backfilled after being buried underground, the pressure of the pipe by the load of the upper earth pressure In addition, deformation occurs in the flexible pipe due to the surrounding ground behavior due to the long-term burial, and the rigid pipe is also damaged by the upper earth pressure and surrounding ground behavior due to the backfilling of soil or the long-term burial. It may protrude or bend into the pipeline.

Therefore, to determine the abnormality of the pipeline to measure the deformation of the pipe to perform the replacement work according to the degree of deformation, such as replacement or repair, conventionally installed a displacement meter inside the pipeline or to shoot the inside of the pipeline with CCTV imaging equipment or The strain amount of the tube was measured using a mechanical strain gauge.

However, the displacement meter method according to the prior art has a displacement measuring magnetic sensor (LVDT) that converts mechanical displacement into an electrical signal and installs the inside of the pipeline. It is used to measure the deformation of pipes, which has the disadvantage of expensive installation cost, requires removal work after installation of displacement meter, and the cost of measuring work is excessively consumed. There was an impossible problem.

On the other hand, CCTV shooting method is to output the CCTV shooting result and then insert it into grid type or grid type, and it is possible to grasp the shape, but the accuracy of the measurement decreases, and 5% of the inner diameter which is the allowable strain standard of the pipe. There was a problem that it was not possible to measure the degree of exceeding the (sewerage facility standard), and to compensate for this, the degree of deformation of the pipe can be measured and verified immediately by numerical analysis at the same time as the CCTV photography. There is a device that can be grasped, but this also has a problem that it takes a lot of money, such as the input of the shooting equipment to investigate the pipeline.

In addition, when using a mechanical strain measurement device that must be equipped with the respective measuring device for each diameter, the operation of the instrument is difficult, and the strain is measured in the form of reading the scale of the attached person through the CCTV screen, which also measures the reliability of the measurement. There was a problem in that the efficiency of the measurement is lowered because the time required about 30 minutes per measurement point is dropped.

The present invention has been made to solve the above problems, the object of the present invention is to change the portion of the existing pipe by measuring the deformation of the existing pipe by the top soil pressure or the ground behavior before the main pipe Since it is the upper part of the pipeline, the present inventors preferentially input the measuring device of the present invention to check whether the allowable strain rate is exceeded, and only when the part exceeding the allowable strain rate in the pipeline is checked, it is necessary to selectively measure the amount of deformation of the existing pipeline. By inputting accordingly, it is possible to prevent unnecessary expensive equipment from being input, thereby reducing the cost of measurement work. Also, it is easy to add and remove the measuring device of the present invention to check whether the pipe is deformed even if it is already embedded. The time required can be significantly reduced, and the expansion or folding of the arm member according to the diameter By only the application in a variety of environments not available there is no error that can be caused by devices that visually checked by the inventors incorporating a measuring device measuring a physical there to the reliability of the measurement provides a secure pipe deformation measuring apparatus.

In order to achieve the above object, the present invention is provided with a ring portion at one end is connected to the wire for movement in the pipeline and the other end is provided with a flange structure and the inside of the hollow body is formed; A pneumatic cylinder which is stably fixed to an inner hollow portion of the outer body; One end is connected to the piston rod of the pneumatic cylinder can be reciprocating in the inner hollow portion of the outer body and the other end is provided with a ring portion to which the wire is connected, the outer periphery of the male thread is formed with a predetermined length A body; A control ring having a female thread line formed therein for coupling with a male threaded line of the inner body, and an insertion hole into which a fixing piece for stopping the reciprocating motion of the inner body is inserted on one side thereof; A fixed number of fixed members and one end fixed to the inner and outer bodies are hingedly coupled to the fixing member and the other end is coupled to the arm member and the arm member which are coupled to the roller while crossing each other to facilitate deployment and folding. It provides a pipe strain measurement device, characterized in that consisting of a fastening piece.

In addition, the outer periphery of the inner body of the present invention may be configured to further form a measurer as a reference for adjusting the diameter of the imaginary circle formed by the roller in a dimension suitable for the inner diameter of the tube to be introduced, The distance measuring device for determining the position of the deformed pipe by measuring the moving distance of the wire may be further configured.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above are as follows.

1 is a perspective view showing an embodiment of a pipeline deformation measuring apparatus according to the present invention, Figure 2 is a cross-sectional view in a state in which the pipeline deformation measuring apparatus according to the invention is put into the pipeline, Figure 3 is a pipeline deformation according to the present invention This is a longitudinal cross-sectional view with the measuring device inserted into the pipeline.

1 to 3, when looking at the structure of the pipeline strain measuring apparatus 100 of the present invention, the wire 50 for movement in the pipeline 70 is connected to an external power supply 80 In order to be connected to the measuring device 100 of the present invention, one end of the outer body 10 is formed with a ring portion 11, the other end of the outer body 10, the flange 12 is in contact with the adjustment ring 30 The structure is provided, the pneumatic cylinder 13 is securely fixed to the inner hollow portion of the outer body (10).

Here, the pneumatic cylinder (13) is a device to perform a reciprocating motion to move forward and backward by the operation of inflow and outflow of the compressed air into the cylinder connected to the piston and the piston rod is used in the present invention because the specific The description will be omitted.

On the other hand, the inner body 20, the male thread is formed in a predetermined length on the outer periphery is one end is connected to the piston rod of the pneumatic cylinder 13 to reciprocate in the inner hollow of the outer body (10) It becomes possible, the other end of the inner body 20 is formed with a ring portion 21 for connecting the wire 50 is connected to the external power supply 80, such as the outer body 10.

Here, the inner and outer bodies 10 and 20 are not limited to steel or aluminum in order to reduce their own weight so that they can be moved without requiring considerable power, and are characterized by strength of steel and light weight of aluminum. At the same time, it can be made of special materials.

In addition, the adjustment ring 30 is a female thread line is formed on the inside for screwing the male thread of the inner body 20, the adjustment ring 30 is supported on the flange 12 structure of the outer body 10 Rotating in one direction causes the inner body 20 to move forward or backward in the inner hollow portion of the outer body 10 according to the characteristics of the screw, and if the adjusting ring 30 is rotated in the opposite direction, the air pressure of the pneumatic cylinder 13 By the restoring force and screw coupling by the inner body 20 is reversed or moved back to the original state.

Here, an insertion hole is formed in one side of the control ring 30 is inserted into the fixing piece 31 for stopping the reciprocating motion of the inner body 20 and pressing and fixing the inner body 20 at a predetermined position. have.

In addition, a predetermined number of fixing members 40 are attached and fixed to the outer periphery of the inner and outer bodies 10 and 20 to hingely engage with one end of the arm member 41, and the other end of the arm member 41 is a roller. The arm member 41 is coupled to and coupled to the cross member 42 while being intersected by the fastening pieces 43, and the present invention is caused by the reciprocating motion in the hollow inside the outer body 10 of the inner body 20. The arm member 41 can be developed or folded to fit the inner diameter of the pipe line 70 into which the measuring device 100 is introduced. Therefore, FIG. 1A shows that the arm member 41 can be folded and inserted into a small diameter conduit 70 in a state where the inner body 20 is pushed out from the outer body 10 to some extent, and FIG. 1B shows the arm member. Since the arm member 41 is deployed in the state in which the 41 is pushed into the outer body 10, it is used in a relatively large diameter pipeline 70.

Here, the number of radial arrangement of the fixing member 40 and the arm member 41 is preferably an odd number at equal intervals, the fixing member 40 and the arm member in order to reduce the confirmation error of the deformation of the pipe line 70 as much as possible It is more preferable that the number of radial arrangements of 41 is 9, which indicates that a polygon is formed at the vertex of the roller 42 connected to the arm member 41 in the cross section of the measuring device 100 of the present invention. In addition, the polygon has a characteristic that the surface is stabilized by making one surface as the bottom surface, and thus the load of the present invention by gravity is evenly distributed on the rollers 42 forming the bottom surface of the polygon, thereby increasing the stability and thus the pipeline 70 The measuring device 100 of the present invention is introduced into the inside of the upper part of the tube is naturally deformed by one of the rollers 42, which naturally form the vertex of the polygon is the upper earth pressure or the ground behavior of the surrounding It will be in proximate position. For example, when the number of radial arrangements of the fixing member 40 and the arm member 41 is nine, one of the rollers 42 forming the vertices of the polygon is eighty or ten. It is located closer to the top of the vertical center line passing through the center and closer to the upper inner surface of the tube.

In addition, the outer periphery of the inner body 20 to the roller 42 in accordance with the reciprocating motion of the inner body 20 on the surface of the longitudinal groove formed so as not to affect the screwing with the adjustment ring 30 The measuring device 22 corresponding to the variable diameter of the imaginary circle formed by the present invention is provided to more precisely adjust the diameter of the imaginary circle formed by the roller 42 to a dimension suitable for the inner diameter of the tube into which the present invention is introduced. You can also

On the other hand, when the present invention is used in the newly installed underground pipeline 70, there is almost no sediment such as soil or foreign matter on the bottom of the pipeline, sediment is accumulated in the pipeline 70 in which sewage, sewage or waste water is introduced for a certain period of time. Therefore, before the dredging operation is performed, the measuring device 100 according to the present invention is not easy to move in the pipeline 70, and inevitably deteriorates reliability in measuring the deformation of the pipeline 70.

Therefore, the following briefly looks at the dredging method, which is a prior operation before the input of the present invention to the inlet pipe 70, such as sewage, generally, dredging bogie, winch and ground pump to dredge the sediment in the pipeline 70 The dredging operation is carried out by using the dredging truck, and the sediment accumulated at the bottom of the sewer pipe is piled up in the manhole settlement of the sewer pipe, and the suction pipe removes the sediment accumulated in the manhole settlement.

Specifically, the suction pipe is inserted into the vertical pipe through the manhole, and the suction pipe is coupled to the ground pump connected to the dredging car on the ground. The support frame is installed on the vertical pipe. The support roller is provided at a predetermined position of the support frame, and the rope extending from the winch on the ground is combined with the bogie installed in the sewer pipe 70 through the support roller, and when the rope is pulled by rotating the winch on the ground, the bogie moves in the sewage pipe. Move sediment to manhole settlement. The sediment accumulated on the manhole settlement is then transported to the ground through the suction line.

On the other hand, while the dredging method does not dredge the sediment of the bottom of the sewer pipe cleanly, the dredger equipped with a transfer pump moves the sewer pipe (70) to overcome the problem that it is difficult to move all the sediment of the sewer pipe to the manhole settlement. It is also possible to use a dredging device that does not need to transfer sediment through the discharge pipe by the transfer pump through the discharge pipe, or sediment in the sewage collection pipe or sewage box to the manhole or settlement, which is not directly related to the present invention. Illustration of the drawings is omitted.

Referring to the operation of the present invention pipe deformation measurement apparatus 100 as follows through the working process using the present invention.

4 is a working state diagram using a pipe deformation measurement apparatus according to the present invention, as shown in this, connecting the wire 50 to both ends of the ring portion (11, 21) of the inner and outer body (10, 20) and the wire ( 50 penetrates the underground pipeline 70 and the vertical passage 71 of the manhole to connect the other end of the wire 50 to a ground power supply 80 that can pull the wire 50 such as a car. Here, a support roller (not shown) and a support frame (not shown) which serve to support the wire 50 may be installed in the vertical path 71 of the manhole, and of course, the wire 50 may be powered. The external force by the source 80 should be a material that must be able to withstand the tension on the wire 50 generated by acting on the measuring device 100 of the present invention.

Next, the measuring device of the present invention is moved in the axial direction of the conduit 70 in the underground conduit 70 by the movement of a power supply source 80 such as an automobile.

The main object of the present inventors pipe deformation measurement apparatus 100 is whether the pipeline 70 buried in the ground exceeded about 5% (sewerage standard) of the inner diameter that the deformation caused by the upper earth pressure or the like is the allowable strain standard of the pipe 70. Since the diameter of the imaginary circle formed by the roller 42 of the measuring device 100 to be introduced is preferably about 95% of the inner diameter of the pipe, deformation of a part of the pipe 70 is allowed. In the case where the strain is exceeded, the measuring device 100 of the present invention can no longer move in the pipeline 70 and stop at that position. Otherwise, the measuring device 100 penetrates the underground pipeline 70. .

As described above, after accurately measuring the movement distance of the wire 50 to determine the position exceeding the allowable strain rate of the pipeline 70, only the periphery of the portion to be replaced for the replacement of the underground pipe is excavated from the ground Excavation can be prevented in advance than necessary, and in order to visually reconfirm the deformation of the pipeline 70, the existing CCTV photographing equipment may be selectively added.

In addition, in order to determine the position of the deformed pipeline 70 by accurately measuring numerically from the input point of the measuring device 100 of the present invention to the point where the measuring device 100 stopped in the underground pipeline 70. A separate distance measuring device 60 capable of automatically measuring the moving distance of the wire 50 may be installed in connection with the wire 50, and the distance measuring device 60 is connected to the movement of the wire 50. It is to be able to automatically measure the actual moving distance by the number of revolutions of the internal distance measuring device (60).

While specific preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the present invention pertains has the technical gist of the present invention. Various changes can be made without departing.

As described above, the inventors of the present invention, the pipe strain measuring device is a part that is deformed by the upper earth pressure or the ground behavior around the pipe before the equipment for measuring the amount of deformation of the existing pipe in the pipeline, so the allowable strain rate of the pipeline In order to check whether the present inventors first put the measuring device in the first place, and only if the part exceeding the allowable strain in the pipe is selectively checked, it is unnecessary and expensive by selectively adding the equipment for measuring the deformation amount of the existing pipe as needed. It can reduce the cost of measuring work by preventing the equipment from being input, and it is easy to add and remove the measuring device of the present invention even for the already installed pipeline, which significantly reduces the time required to check the deformation of the pipeline. Various diameters by the expansion or folding of arm member according to the diameter This applies not only possible, but an error that can be caused by devices that visually checked by the inventors incorporating a measuring device measuring a physical there is the reliability of measurement definite effect.

Claims (4)

One end is provided with a ring portion 11 to which the wire 50 for movement in the conduit 70 is connected, and the other end is provided with a flange 12 structure, and an outer body 10 having a hollow portion formed therein. )Wow; A pneumatic cylinder 13 which is stably fixed to an inner hollow portion of the outer body 10; One end is connected to the piston rod of the pneumatic cylinder 13 can be reciprocated in the inner hollow portion of the outer body 10 and the other end is provided with a ring portion 21 is connected to the wire 50 An inner body 20 having male threads formed to a predetermined length on an outer circumference thereof; A female ring is formed on the inner side for screwing the male threaded line of the inner body 20 and an adjustment ring having an insertion hole into which a fixing piece 31 for stopping the reciprocating motion of the inner body is inserted on one side thereof ( 30); An arm member 41 having a predetermined number of fixing members 40 fixed to the inner and outer bodies 10 and 20 and one end of which is hinged to the fixing member 40 and the other end of which is coupled to the roller 42. And a fastening piece (43) configured to be coupled to each other while crossing the arm members (41) to facilitate deployment and folding. The method of claim 1, The outer periphery of the inner body 20 is formed that the additional measuring member 22 is formed as a reference for adjusting the diameter of the imaginary circle formed by the roller 42 in a dimension suitable for the inner diameter of the tube to be introduced Pipeline strain measuring device characterized in that. The method according to claim 1 or 2, Pipe deformation measurement apparatus, characterized in that consisting of the radial arrangement number of the fixing member 40 and the arm member 41 is nine. The method according to claim 1 or 2, Pipeline deformation measuring apparatus characterized in that the distance measuring device 60 for measuring the moving distance of the wire 50 to determine the position of the modified pipe line 70 is further configured.

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