KR20130063067A - Repairing apparatus being adaptable to sewer pipes of various inner diameter - Google Patents

Repairing apparatus being adaptable to sewer pipes of various inner diameter Download PDF

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Publication number
KR20130063067A
KR20130063067A KR1020110129373A KR20110129373A KR20130063067A KR 20130063067 A KR20130063067 A KR 20130063067A KR 1020110129373 A KR1020110129373 A KR 1020110129373A KR 20110129373 A KR20110129373 A KR 20110129373A KR 20130063067 A KR20130063067 A KR 20130063067A
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KR
South Korea
Prior art keywords
frame
packer
compressed air
repair device
sewer pipe
Prior art date
Application number
KR1020110129373A
Other languages
Korean (ko)
Inventor
유성상
김상철
Original Assignee
테크노포스(주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 테크노포스(주) filed Critical 테크노포스(주)
Priority to KR1020110129373A priority Critical patent/KR20130063067A/en
Publication of KR20130063067A publication Critical patent/KR20130063067A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/10—Treating the inside of pipes
    • F16L2101/18—Lining other than coating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)

Abstract

The sewer pipe repair device according to the present invention has a feature that the inner diameter can be used for different sewer pipes, so that there is no need to provide a repair device for each inner diameter, thereby greatly reducing the purchase cost and maintenance cost of the repair device. .

Description

Repairing apparatus being adaptable to sewer pipes of various inner diameter}

The present invention relates to a sewage pipe repair device, and more specifically, since the inner diameter can be used in another sewage pipe, there is no need to provide a repair device for each inner diameter, thereby greatly reducing the purchase cost and maintenance cost of the repair device. It is about the sewer repair system.

In general, in a sewage pipe buried underground such as a concrete fume pipe, a vinyl chloride pipe made of synthetic resin, a conduit, etc., a crack, a breakage, or a connection thereof is separated due to aging of the pipe itself, ground subsidence, or a change in earth pressure from the ground. This may occur. When such a defect occurs in the sewage pipe, the waste water flowing inside the sewage pipe flows out into the ground through the defective portion. Spilled waste water contaminates soil and groundwater.

The method for repairing the faulty sewer pipe is appropriately selected depending on the nature of the damaged area and the ambient conditions. In the case of relatively small sewer pipes having a diameter of 200 to 700 mm, grouting or lining methods or the like are adopted because the worker cannot enter the sewer pipes.

Among these, the lining method requires a reinforcing function if the damage is severe and the reinforcing function is necessary, for example, if the damage is formed in a wide distribution line or the entire area of the pipe is damaged and a grouting operation is not possible due to the formation of a separate lining material Lining the inner wall of the pipeline to temporarily reinforce the damaged area over a wide range.

The lining method is made by a sewage pipe repair device, the repair device is disclosed in the Republic of Korea Patent Registration No. 10-0588821.

1 to 3 are views showing the sewage pipe repair device 10. As shown in the drawing, the sewer pipe repair apparatus 10 includes a cylindrical frame 2, a flange 3 provided on both sides of the frame 2, and a packer installed to surround the outer surface of the frame 2 ( 4) is provided. The lining material 310 is introduced into the sewage pipe 300 in a state of being wound on the outer surface of the packer 4.

The packer 4 is inflated to uniformly contact the inner surface of the sewage pipe 300 by the inflow of compressed air. The lining material 310 is attached to the inner surface of the sewer pipe 300 by the adhesive force as the packer 4 is expanded.

By the way, the packer 4 is made of rubber, there is a problem that the packer 4 made of rubber lacks a lot of elasticity and wear resistance.

In addition, there is a limit to the expansion of the packer 4. Accordingly, it is unreasonable to use a repair device used for a sewer pipe having a small inner diameter (hereinafter referred to as an 'inner diameter') in a sewage pipe having a large inner diameter. If the packer 4 is excessively inflated to use the repair device used for the sewage pipe of the small inner diameter in the sewage pipe of the large inner diameter, the packer 4 may explode or the service life may be shortened.

Therefore, there is a problem that the maintenance device 10 should be provided for each inner diameter of the sewage pipe 300, and accordingly, the purchase cost and maintenance cost of the repair device 10 are increased.

The present invention has been proposed to solve the above problems, an object of the present invention is to provide a sewer pipe repair device, so that there is no need to provide a repair device for each inner diameter because the inner diameter can be used in different sewer pipes.

It is still another object of the present invention to provide a sewer pipe repair device that can significantly reduce the purchase cost and maintenance cost of a repair device.

Still another object of the present invention is to provide a sewer pipe repair apparatus that can be used in sewage pipes of various inner diameters without shortening the service life of the packer.

It is still another object of the present invention to provide a sewer pipe repair apparatus having a packer excellent in elasticity and wear resistance.

The sewer pipe repair device according to the present invention has a feature that the length of the frame can be adjusted. To this end, the sewage pipe repair device, the frame; Flanges 30 and 35 installed at both ends of the frame; And a packer installed at both flanges 30 and 35 so as to surround the frame and expandable by inflow of compressed air. The frame includes a first frame 22 and a second frame 25, wherein the first frame 22 and the second frame 25 are installed to slide relative to each other. Therefore, when the packer expands due to the inflow of the compressed air, the length of the frame is reduced by the sliding.

Another sewage pipe repair apparatus according to the present invention uses a sliding means to adjust the length of the frame. The sewer pipe repair device, the frame; Flanges 30 and 35 installed at both ends of the frame; A packer installed at both flanges 30 and 35 so as to surround the frame, the packer being expandable by inflow of compressed air; And a sliding means. The frame includes a first frame 22 and a second frame 25 slidably mounted relative to each other, the sliding means sliding the at least one of the first and second frames 22 and 25 so that the length of the frame is slid. Adjust The expansion amount of the packer can be adjusted by adjusting the length of the frame by the sliding means.

Preferably the sliding means is a cylinder 70.

The packer may have a pleat 42 repeatedly formed along its longitudinal direction. The pleats 42 are stretched when the packer expands.

The packer may have a pleat 44 repeatedly formed along its circumferential direction. The pleat 44 is stretched when the packer expands.

According to the present invention, a packing ring for preventing the compressed air from flowing into the inside of the frame may be installed on any one of the outer surface of the second frame 25 and the inner surface of the first frame 22.

In addition, a corrugated pipe 60 may be installed between the frame and the packer to surround the frame. Corrugated pipe 60 can be extended or contracted by the pleats 62 to correspond to the length adjustment of the frame. The corrugated pipe 60 prevents the compressed air from leaking between the packer and the corrugated pipe.

The sewer pipe repair device according to the present invention has the following effects.

First, since the inner diameter can be used in other sewer pipes, there is no need to provide a repair device for each inner diameter.

Second, the purchase cost and maintenance cost of the repair device can be greatly reduced.

Third, it can be used for sewage pipes of various inner diameters without shortening the service life of the packer.

Fourth, packer elasticity and wear resistance are excellent.

1 is a perspective view showing a sewer pipe repair apparatus according to the prior art.
2 is a cross-sectional view showing that the sewage pipe repair apparatus of FIG. 1 is introduced into the sewer pipe.
3 is a cross-sectional view showing that the packer provided in the sewer pipe repair apparatus of FIG. 1 is expanded to attach the lining material to the inner surface of the sewer pipe.
4 is a cross-sectional view showing that the sewage pipe repair apparatus according to the first embodiment of the present invention is inserted into the sewage pipe path having a small inner diameter.
5 is a cross-sectional view showing that the packer provided in the sewer pipe repair device of FIG. 4 is expanded to attach the lining material to the inner surface of the sewer pipe.
6 is a cross-sectional view showing that the sewage pipe repair device of FIG. 4 is inserted into the sewage pipe path having a large inner diameter.
7 is a cross-sectional view showing that the packer provided in the sewer pipe repair apparatus of FIG. 4 is expanded to attach the lining material to the inner surface of the sewer pipe.
8 is a cross-sectional view showing a sewer pipe repair apparatus according to a second embodiment of the present invention.
9 is a cross-sectional view showing that the sewage pipe repair apparatus according to the third embodiment of the present invention has been put into the sewer pipe.
10A is a sectional view taken along line AA ′ of FIG. 9;
FIG. 10B is a cross-sectional view taken along line BB ′ of FIG. 9;
10C is a cross-sectional view taken along line CC ′ of FIG. 9.
FIG. 11 is a cross-sectional view illustrating a packer provided in the sewer pipe repair apparatus of FIG. 9 expanding to attach the lining material to the inner surface of the sewer pipe; FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

As described above, the sewer pipe repair apparatus according to the present invention has a feature that the length of the frame is adjusted according to the inner diameter of the sewer pipe. Hereinafter, the present invention will be described first to be used in a relatively small inner diameter sewer pipe, and then to be used in a relatively large inner diameter sewer pipe.

4 is a cross-sectional view showing that the sewage pipe repair apparatus according to the first embodiment of the present invention is inserted into a sewage pipe path having a small inner diameter.

Referring to the drawings, the sewage pipe repair apparatus 100 includes a frame 20, flanges 30 and 35 provided on both sides of the frame 20, and a packer 40 installed to surround the frame 20. do.

Frame 20 is the length (L) is adjusted according to the inner diameter of the sewer pipe (300). Specifically, when the inner diameter of the sewage pipe 300 is small, the length L of the frame 20 is slightly reduced, and when the inner diameter of the sewage pipe 300 is large, the length L of the frame 20 is reduced to a large amount. Allow 40 to expand a lot. This point is described below.

The frame 20 may include first and second frames 22 and 25 installed to be slidable with respect to each other. The first frame 22 is a tube, preferably a cylindrical tube, and the second frame 25 is a tube, preferably a cylindrical tube, which can slide in a state inserted into the tube. Oil for assisting the sliding may be applied to the inner surface of the first frame 22 and / or the outer surface of the second frame 25.

One end of the second frame 25 is engaged with the flange 35 and the other end of the second frame 25 is inserted into the first frame 22. The other end of the first frame 22 is coupled to the flange 30. The couplings can be made by conventional bonding methods, for example by welding or by using bolts and nuts.

It is preferable that the packing ring 26 is installed at a portion of the outer surface of the second frame 25 inserted into the first frame 22. The packing ring 26 prevents compressed air from flowing into the frame 20.

Meanwhile, as an alternative to the packing ring 26 being installed on the outer surface of the second frame 25, the packing ring 26 may be installed on the inner surface of the first frame 22. This point will be easily understood by those skilled in the art with reference to the present specification.

The flanges 30 and 35 are flat plates, preferably circular flat plates, installed at both ends of the frame 20.

The flange 30 may be connected to the injection pipe 31 for injecting external compressed air. The injection pipe 31 is connected to an external compressed air tank (not shown) to inject the compressed air stored in the tank into the space S between the frame 20 and the packer 40. The injection pipe 31 may be provided with a valve 32 for controlling the injection and discharge of the compressed air.

In addition, the flanges 30 and 35 may be provided with wheels 34 for moving the repair device 100.

The packer 40 is installed on both flanges 30 and 35 so as to surround the frame 20. Both ends of the packer 40 are combined with the flanges 30 and 35 to form a closed space S therein. The coupling may be made by adhesive, bolts and nuts.

The packer 40 may be made of, for example, silicone rubber. Silicone rubber is characterized by better elasticity and abrasion resistance even if the thickness thereof is thinner than that of conventional packers.

When compressed air is introduced into the space S and the packer 40 is expanded, as shown in FIG. 5, the diameter of the packer 40 is increased and the first and second frames 22 and 25 are connected to each other. Sliding with respect to the length (L) of the frame 20 is reduced and thus the expansion of the packer 40 can be easily made. When the packer 40 expands, the lining material 310 adheres to and adheres to the inner surface of the sewer pipe 300 to repair the damaged part 320. On the other hand, the lining material is already well known in the configuration and can be easily purchased on the market will not be described herein.

Meanwhile, wrinkles (42 and 44 in FIGS. 9 to 10C) may be formed in the packer 40, and the wrinkles 42 and 44 will be described below.

6 and 7 are cross-sectional views showing that the sewage pipe repair device is inserted into the sewage pipe passage of a large inner diameter. 6 and 7, the same reference numerals as the reference numerals of FIGS. 1 to 5 denote the same components that play the same role.

As described above, as the compressed air flows into the space S, the packer 40 expands, and the diameter of the packer 40 increases, the first and second frames 22 and 25 slide with respect to each other. When the length of the frame 20 is reduced, when the inner diameter of the sewer pipe 400 is large, the expansion amount of the packer 40 becomes larger than that when the inner diameter is small, and thus the length of the frame 20 is further reduced. . 5 and 7, the diameter of the packer 40 is larger in FIG. 7 and the length of the frame 20 is shorter in the case of FIG. 7.

On the other hand, Figure 8 is a cross-sectional view showing a sewer pipe repair apparatus according to a second embodiment of the present invention. In FIG. 8, the same reference numerals as the reference numerals of FIGS. 1 to 7 denote the same components that play the same role.

The sewer pipe repair device 200 is different from the repair device 100 in that it has a corrugated pipe 60 installed between the packer 40 and the frame 20 and the rest of the configuration except for the corrugated pipe 60 is a repair device ( Same as 100). Corrugated pipe 60 prevents the compressed air of the space (S) outflow.

Corrugated pipe 60 is a tube that can be extended or contracted by the pleats 62 to correspond to the length adjustment of the frame 20. Commercially available corrugated pipes such as bellows hoses and the like can be used as corrugated pipes.

The corrugated pipe 60 is installed to surround the frame 20. Both ends of the corrugated pipe 60 is coupled to the flange 30, 35, the coupling may be made by bolt fixing, adhesive or the like.

9 is a cross-sectional view showing that the sewage pipe repair apparatus according to the third embodiment of the present invention is inserted into the sewer pipe. In FIG. 9, the same reference numerals as the reference numerals of FIGS. 1 to 8 denote the same components having the same role.

The sewer pipe repair device 500 includes a frame 20, flanges 30 and 35 provided at both ends of the frame 20, a packer 40a provided to surround the frame 20, and sliding means. Of the above components, the frame 20 and the flanges 30 and 35 are the same as the frames 20 and the flanges 30 and 35 of the above-described embodiments, respectively, and thus description thereof will be omitted.

The packer 40a has the pleats 42 formed repeatedly in the longitudinal direction (x direction). By the pleats 42, concave and convex portions are repeatedly formed along the longitudinal direction on the outer surface of the packer 40a. The pleats 42 are stretched when the packer 40a is inflated and when the cylinder 70 is fully inflated.

10A to 10C, the packer 40a may be repeatedly formed with pleats 44 in the circumferential direction thereof. The pleats 44 are stretched when the packer 40a is inflated.

The pleats 42 and 44 may increase the amount of expansion of the packer 40a. The corrugations 42 and 44 may be formed in the packer 40a or only one of them, which will be easily understood by those skilled in the art.

The packer 40a can be made of rubber, preferably silicone rubber, as in the case of the embodiment described above.

The packer 40a is preferably smaller in diameter than its opposite side for uniform expansion. 10A and 10C show the cross-sections of both sides, and FIG. 10B shows the cross-sections of the center portions. It can be seen that the diameter of the center portion is smaller than the diameter of the both side portions. When compressed air flows into the packer 40a and expands, the center portion expands more than both sides, and thus the lining material may not be properly attached to the inner surface of the sewer pipe 400. In order to prevent this problem, if the central diameter of the packer 40a is smaller than the diameter of both sides, the outer circumferential surface of the packer 40a may be flat when the packer 40a is expanded.

The sliding means adjusts the length of the frame 20. Cylinder 70 may be used as the sliding means.

One end of the cylinder 70 is installed on the flange 30 and the other end is installed on the second frame 25. Therefore, when the cylinder 70 is contracted or expanded, the second frame 25 is slid, thereby adjusting the length of the frame 20.

Meanwhile, one end of the cylinder 70 may be installed on the flange 35 and the other end may be installed on the first frame 22. In addition, one end of the cylinder 70 may be installed in the first frame 22 and the other end may be installed in the second frame 25. In this case, when the cylinder 70 is contracted or expanded, the first, Both frames 22 and 25 slide.

Shrinkage or expansion of the cylinder 70 may be by injection or discharge of compressed air. The compressed air is supplied through the injection pipe 31 and the valve 37.

Shrinkage or expansion of the cylinder 70 is to adjust the length of the frame 20, when the inner diameter of the sewage pipe 400 is large, by shrinking the cylinder 70 a lot so that the packer 40a can expand a lot When the inner diameter of the sewer pipe 400 is small, the packer 40a may be expanded only a little so that the cylinder 70 is contracted or expanded only a little.

Although it is preferable to inject compressed air into the space S after adjusting the length of the frame 20 first, the length adjustment and the compressed air injection of the frame 20 may be simultaneously performed. In addition, the sewer pipe repair device 500 may be provided with a corrugated pipe (60 of FIG. 8) provided between the packer 40a and the frame 20.

On the other hand, in the above described that the repair device according to the present invention is used in the sewer pipe, the repair device according to the present invention can be used not only in the sewer pipe but also various pipes that require repair, for example, water pipes.

20: frame 22: first frame
25: second frame 30, 35: flange
40, 40a: Packer 42, 44: Packer wrinkles
60: corrugated pipe 62: corrugated pipe
70: Cylinder
100, 200, 500: Sewage pipe repair device
300, 400: sewer pipe
310: lining material L: frame length
S: Enclosed Space

Claims (7)

frame;
Flanges 30 and 35 installed at both ends of the frame; And
And a packer installed on both flanges 30 and 35 so as to surround the frame and expandable by inflow of compressed air.
The frame includes a first frame 22 and a second frame 25, the first frame 22 and the second frame 25 is installed to slide relative to each other,
When the packer is expanded by the inflow of the compressed air, the length of the frame is reduced by the sliding characterized in that the sewer pipe repair device. frame;
Flanges 30 and 35 installed at both ends of the frame;
A packer installed at both flanges 30 and 35 so as to surround the frame, the packer being expandable by inflow of compressed air; And
A sliding means;
The frame includes a first frame 22 and a second frame 25 installed to be slidable relative to each other,
The sliding means slides at least one of the first and second frames 22 and 25 to adjust the length of the frame,
The sewer pipe repair apparatus, characterized in that the expansion amount of the packer is adjusted by the length of the frame by the sliding means. The method of claim 2,
The sliding means is a sewer pipe repair device, characterized in that the cylinder (70). 4. The method according to any one of claims 1 to 3,
The packer has a pleats 42 repeatedly formed along its longitudinal direction, and the pleats 42 are stretched when the packer expands. 4. The method according to any one of claims 1 to 3,
The packer has a pleat 44 repeatedly formed along its circumferential direction, and the pleat 44 is unfolded when the packer expands. 4. The method according to any one of claims 1 to 3,
Any one of the outer surface of the second frame (25) and the inner surface of the first frame (22), sewage pipe repair apparatus, characterized in that the packing ring is installed to prevent the compressed air from entering the interior of the frame. 4. The method according to any one of claims 1 to 3,
A corrugated pipe 60 is installed between the frame and the packer to surround the frame, and the corrugated pipe can be extended or contracted by the corrugation 62 so as to correspond to the length adjustment of the frame.
Corrugated pipe (60) is a sewer pipe repair device, characterized in that to prevent the compressed air flows out between the packer and the corrugated pipe.
KR1020110129373A 2011-12-06 2011-12-06 Repairing apparatus being adaptable to sewer pipes of various inner diameter KR20130063067A (en)

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KR1020110129373A KR20130063067A (en) 2011-12-06 2011-12-06 Repairing apparatus being adaptable to sewer pipes of various inner diameter

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101515163B1 (en) * 2014-10-06 2015-04-24 언더테크 주식회사 An apparatus for repairing a drain pipe
BE1027240B1 (en) * 2019-04-29 2020-12-01 Renotec Nv Method of repairing a sewer
KR102276430B1 (en) * 2020-06-16 2021-07-12 정지훈 Apparatus and method for repairing pipe
KR20210152623A (en) * 2020-06-08 2021-12-16 주식회사 뉴보텍 Apparatus and method for repairing pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101515163B1 (en) * 2014-10-06 2015-04-24 언더테크 주식회사 An apparatus for repairing a drain pipe
BE1027240B1 (en) * 2019-04-29 2020-12-01 Renotec Nv Method of repairing a sewer
KR20210152623A (en) * 2020-06-08 2021-12-16 주식회사 뉴보텍 Apparatus and method for repairing pipe
KR102276430B1 (en) * 2020-06-16 2021-07-12 정지훈 Apparatus and method for repairing pipe

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