KR100690957B1 - Forking pipe repairing materials and repairing method using it - Google Patents

Abstract

A branch pipe repairing member and a repairing method using the same are provided to minimize the loss of time and the economical loss due to excavation by proceeding the process in a non-excavation method. In a branch pipe repairing unit, a connection section of a main pipe(P1) and a branch pipe(P2) branched from the main pipe is repaired. A main pipe repairing unit(1) is wound in a cylindrical shape and is contracted. Then, the main pipe repairing unit is inserted into the interior of the main pipe and is expanded. The branch pipe repairing unit is supported by the main pipe repairing unit. The branch pipe repairing unit includes a cylindrical branch pipe insertion section(10) and a sealing section(20). The branch pipe insertion section is inserted into the branch pipe and is attached to the inner wall of the branch pipe. The sealing section is formed along the circumferential direction on the outer peripheral surface of the rear end of the branch pipe insertion section. When the main pipe repairing unit is attached to the inner wall of the main pipe, the sealing section is pressed and is attached to the inner wall of the main pipe.

Description

Forking pipe repairing materials and repairing method using it}

1 is a partially cutaway perspective view of a branch pipe repairing member according to the present invention;

FIG. 2 is a bottom perspective view of FIG. 1. FIG.

Figure 3 is a longitudinal sectional view of the branch pipe repair member according to the present invention.

4 is a reference diagram showing a state in which the branch pipe repair member of the present invention is mounted on the main pipe repair member.

5a to 5f is a reference diagram for explaining the branch pipe repair method of the present invention.

FIG. 6 is an enlarged partial cross-sectional view of a point at which repair is completed by the process of FIG. 5F; FIG.

* Description of the symbols for the main parts of the drawings *

1: main building repair member 2: branch pipe repair member

3: extension device 10: branch insertion part

11: inner circumferential surface of branch insertion part 12: outer circumferential surface of branch insertion part

20: sealing part 30: coupling part

The present invention relates to a branch pipe repair member and a repair method, and particularly, a branch pipe repair member suitable for unmanned repair at a remote location more quickly and conveniently from a main pipe and a branch branch branched from the main building, and a repair method using the same. It is about.

In general, water pipes and sewer pipes buried underground frequently leak at branching points where pipes are branched. Such leaks may be due to failure in perfect construction or branching of pipelines during initial construction, or damage and breakage due to aging of pipelines after construction.

Therefore, there is an urgent need for a repair member and a repair method for repairing the connection part of the branch pipe, but it is a recent situation that it cannot effectively respond due to many problems to be solved. The challenges to be solved are generally as follows.

That is, the repair work should be carried out in a non-excavation manner. This is to minimize the time and economic losses caused by the excavation.

In the case of a large pipe, there is a risk of human injury due to high water pressure due to a large amount of sewage (or upper part) and harmful gases present in the interior. do.

Since the pipeline form of the connection part that requires repair is "T" rather than a straight line, it is necessary to overcome the technical difficulties and repair more quickly and conveniently, but thoroughly.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to provide a branch pipe repair member and a repair method using the same to more quickly and conveniently repair the connection portion between the main pipe and the branch pipe. To provide.

In order to achieve the above object, the branch pipe repair member according to the technical idea of the present invention maintains the connection portion between the main pipe and the branch branched from the main pipe, but is wound in a cylindrical shape and inserted into the main tube and then expanded. A branch pipe repair member which is supported by a main pipe repair member that is in close contact with the inner wall of the main pipe, the cylindrical branch pipe insertion part inserted into the branch pipe and tightly attached to the inner wall, and along the circumferential direction on the outer peripheral surface of the rear end of the branch pipe insertion part; It is characterized in that it comprises a disk-shaped sealing portion which is formed to be in close contact with the inner wall of the main building when the main repairing member is in close contact with the inner wall of the main building.

Here, it is formed along the circumferential direction on the outer peripheral surface of the rear end portion of the branch pipe inserting portion, and is formed at a position separated from the sealing portion to the rear side, and after inserting the main repairing member and inserted into the perforated portion and the sealing portion It may be characterized by further comprising a disk-shaped coupling portion to hold the main repair member from the outside and the inside.

In addition, the branch pipe insertion portion is wound in a cylindrical shape can be characterized in that it is further in close contact with the inner wall of the branch pipe by the branch retaining member that is inserted into the branch pipe insertion portion and then expanded in the contracted state.

In addition, the material of the branch pipe repair member may be characterized in that the rubber.

In addition, the outer peripheral surface of the distal end portion of the branch pipe insert may be formed to be convex along the circumferential direction so as to contact the inner wall of the branch pipe more closely.

In addition, the branch pipe repairing member of the present invention is a disk-shaped insert inserted into the branch pipe and in close contact with the inner wall, and a disk-shaped formed in the circumferential direction on the outer circumferential surface of the rear end portion of the branch pipe insertion portion to be in close contact with the inner wall of the main building It may be characterized by including a sealing portion.

In addition, the outer peripheral surface of the distal end portion of the branch pipe insertion portion may be formed convexly along the circumferential direction so as to contact the inner wall of the branch pipe more closely, and the material of the whole branch pipe repair member may be rubber.

On the other hand, the repair method of the present invention is a branch pipe repair method for repairing the connection portion between the main pipe and the branch pipe branched from the main pipe using a branch pipe repair member, the main body repair member wound in a cylindrical shape and contracted By inflating at the connection portion to close to the inner wall of the main building, it is characterized in that the branch pipe repair member is supported and fixed in the state inserted into the branch pipe.

Here, the branch pipe repair member may be further in close contact with the branch pipe by expanding the branch pipe repair member in a cylindrical shape and being in a contracted state and expanding the branch pipe repair member in close contact with the inner wall of the branch pipe.

In addition, the branch pipe repair member, the entire material is rubber, is inserted into the branch pipe is a cylindrical branch pipe insert portion that is in close contact with the inner wall of the branch pipe when the branch pipe repair member is expanded, and the outer peripheral surface of the rear end portion of the branch pipe insert portion It is formed along the direction is formed in the circumferential direction on the outer circumferential surface of the disk-shaped sealing portion and the rear end portion of the branch pipe insert is pressed in between the main tube repair member is in close contact with the inner wall of the main building when the main building repair member is in close contact with the inner wall of the main building; And a disk-shaped coupling portion formed at a position spaced rearward from the rear side, and the main tube repair member is perforated before the main body repair member is inserted into the main tube and expanded, and then the branch pipe repair member is coupled to the perforated part. And inserting a portion to mount the branch pipe repair member to the main pipe repair member. Can.

Hereinafter, embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

EXAMPLE

1 is a partially cutaway perspective view of a branch pipe repair member according to the present invention, FIG. 2 is a bottom perspective view of FIG. 1, FIG. 3 is a longitudinal cross-sectional view of a branch pipe repair member according to the present invention, and FIG. It is a reference figure which shows the state in which an engine repair member was attached to the main repair member.

As shown, the branch pipe repair member 2 of the present invention includes a branch pipe inserting portion 10, a sealing portion 20, the coupling portion 30, and inserted in the contracted state in the main pipe and branch pipe respectively. After the main tube repair member (1) and branch pipe repair member (6) to be expanded to repair the branch pipe formed by connecting the main pipe and the branch pipe. Here, the main repair member (see 1, 4) and the branch repair member (see 6, 4) is a repair member filed by the present applicant as of March 16, 2005 and registered in 2005.08.25 (Patent No. 0512024, Name: It is preferable to use a non-excavation repair member of the pipeline, the following selection. The above-mentioned invention is because the contraction and expansion operation is very stable by the unique configuration provided with a guide belt, and because of the excellent repair effect of the pipeline. However, the main building repair member (1) and branch pipe repair member (6) are each provided with sizes corresponding to the diameter of the main building and branch pipe. Hereinafter, each component constituting the branch pipe repair member 2 will be described in detail.

The branch pipe inserting portion 10 has a cylindrical body that can be in close contact after being inserted into the branch pipe branched (or connected) from the main building. The branch pipe inserting portion 10 is formed to a diameter of the extent that can be fitted close to the branch pipe within the elastic allowable elastic range. Thus, when the external force is applied, the branch pipe inserting portion 10 is forcibly fitted into the branch pipe and is coupled to the inside of the branch pipe. The branch pipe inserting portion 10 is more firmly adhered to the branch pipe by the branch pipe repair member 6. At this time, the branch pipe retaining member 6 is wound into a cylindrical shape and is inserted into the branch pipe inserting portion 10 in a contracted state and then expanded by its elastic force to compress the branch pipe inserting portion 10 to the inner wall of the branch pipe. With the help of the branch pipe repairing member 6, the branch pipe repairing member 2 according to the present invention can be made of a softer rubber material that does not have its own elastic force, and is better able to prevent breakage or cracking in the pipeline. Sealing becomes possible. The method of installing the branch pipe repair member 6 will be described later.

On the other hand, the outer peripheral surface 12 of the branch pipe inserting portion 10 is formed to have a convex volume. To this end, the outer diameter of the distal end of the branch insertion part 10 is formed larger than that of the rear end so that the distal end surface of the branch pipe is convex along the circumferential direction. Then, when the branch pipe inserting portion 10 is inserted into the branch pipe, the tip portion is more closely attached to the inner wall of the branch pipe than other portions. As a result, the branch insertion part 10 can be prevented from being separated from the branch by slip phenomenon. In the case of the inner circumferential surface 11 of the branch pipe inserting portion 10, unlike the outer circumferential surface 12 for the installation of the branch pipe repair member 6, it is formed smoothly without any change in the diameter.

The sealing portion 20 is formed in a disk shape in the circumferential direction on the outer peripheral surface of the rear end of the branch pipe inserting portion 10. As a result, the sealing part 20 is compressed and firmly supported therebetween when the main repairing member 1 (see FIG. 4) is expanded and closely adhered to the inner wall of the main building. Then, the whole branch pipe repair member 2 of the present invention is stably fixed by the support of the main pipe repair member 1. The sealing part 20 installed in this way can repair the connection part between the main pipe and the branch pipe causing the leak together with the branch pipe inserting portion 10.

The coupling portion 30 is formed in a disk shape along the circumferential direction on the outer peripheral surface of the rear end portion of the branch pipe inserting portion 10, and slightly from the sealing portion 20 to the rear side in consideration of the thickness of the main repair member 1. It is formed in a spaced position. As a result, the coupling part 30 is inserted into the perforated part after perforating the main repairing member 1, and cooperates with the sealing part 20 to cooperate with each other to seal the main repairing member 1 from the outside and the inside. Caught. By such a coupling portion 30 it is possible to stably mount the branch pipe repair member 2 of the present invention to the main pipe repair member (1). On the other hand, the section between the sealing portion 20 and the coupling portion 30 is a section in which the main building repair member 1 is fitted. Therefore, it is preferable that the waist portion 31 formed convexly between the sealing portion 20 and the coupling portion 30 is convex outward so as to be elastically in close contact with the main repair member 1.

The branch pipe repair member 2 of the present invention is inserted into the branch pipe connected to the main pipe and the branch pipe at a time in a socket manner, and then elastically closes to seal the damaged part where the sewage leaks. Therefore, it is made of any one of soft synthetic resin, natural rubber and artificial rubber to favor such repair. In particular, the branch pipe repair member 2 of the present invention is preferably made of a material having corrosion resistance and chemical resistance in consideration of various harmful components contained in the sewage. Here, the material for the branch pipe repair member 2 of the present invention is not limited to those mentioned above, and other materials may be used as long as the material is equivalent or better.

Subsequently, the repair pipe repair method according to the present invention will be described.

5A to 5F are reference views for explaining the branch pipe repair method of the present invention.

As described above, the repair method of the present invention uses the main tube repair member 1 and the branch tube repair member 6 filed by the applicant together with the branch tube repair member 2 according to the present invention to cooperate with each other. That is, the repair pipe repairing method of the present invention expands in the main pipe P1 of the connection portion between the main pipe P1 and the branch pipe P2 in a state in which the main pipe repair member 1 is wound in a cylindrical state and contracted, and thus the main pipe P1 is repaired. While being in close contact with the inner wall, the branch pipe repair member 2 is supported and fixed using the elastic force of the main repair member 1 while being inserted into the branch pipe P2. Subsequently, the branch pipe retaining member 6 is wound into a cylindrical shape to be contracted and inserted into the branch insert 10 of the branch pipe retaining member 2 to expand, thereby expanding the branch insert 10 by the elastic force. (P2) It is characterized in that it is fixed in close contact with the inner wall.

To this end, before the main body repair member 1 is inserted into the main pipe P1 and expanded, the main body repair member 1 is drilled and then the coupling portion 30 of the branch pipe repair member 2 is formed in the hole. Insert it. Then, the branch pipe repair member 2 is stably mounted to the main pipe repair member 1. Subsequently, as described above, when the main repair member 1 is moved to the connection portion between the main pipe P1 and the branch pipe P2 and then expanded, the branch pipe inserting portion 10 of the branch pipe repair member 2 is branch pipe P2. It is inserted into the inside and close to the inner wall. Subsequently, when the main building repair member 1 is fully inflated and adhered to the main building P1, the sealing unit 20 is compressed between the main building repair member 1 and the inner wall of the main building P1. As a result, the connection part between the main pipe P1 and the branch pipe P2 is repaired by the branch pipe inserting portion 10 and the sealing portion 20, thereby eliminating the problem of breakage and cracks that cause water leakage.

Hereinafter, the branch pipe repair method of the present invention according to FIGS. 5A to 5F will be described step by step.

First, Figure 5a shows the dredging step to solve the inconvenience caused by foreign matters during the repair by washing the inside of the main building (P1). In the dredging step, the dredging device 4 is introduced into the main pipe P1 to cleanly remove various foreign substances deposited on the inside of the main pipe P1, in particular, the bottom surface. Although the dredging device 4 shown in FIG. 5A is intended to spray a high pressure washing liquid, it is possible to dredge the inside of the main pipe P1 by dredging methods using various dredging devices in addition to the dredging device 4.

Figure 5b shows the inspection step that proceeds after the dredging step. In the inspection step, the main site (P1), branch pipe (P2), and the damage site causing leakage in the connection between the main pipe (P1) and the branch pipe (P2) through camera shooting. To this end, the inspection device 5 equipped with a camera device is moved into the main building P1 and moved to thoroughly inspect the inside of the main building P1 and the branch pipe P2, and their connections.

5C shows the step of mounting the branch pipe repair member 2 to the main pipe repair member 1 in a contracted state and moving them to the connection portion between the main pipe P1 and the branch pipe P2. In order to install the branch pipe repair member 2 on the main repair member 1, the main repair member 1 is perforated, and then the coupling part 30 of the branch repair member 2 is inserted into the perforated part. Just put it. When the branch pipe repair member 2 is mounted on the main repair member 1 as described above, they are moved to the connection portion between the main pipe P1 and the branch pipe P2 by using a repair device having an expansion device 3 such as an air bag. Let's do it. In this case, the main tube repair member 1 is in a state in which the branch tube repair member 2 is wound up and contracted so as not to be disturbed from being introduced into the main tube P1 in consideration of the combined height.

Figure 5d shows the state in close contact with the inner wall of the main building (P1) while expanding the main building repair member (1) by operating the expansion device (3) of the repair device. At this time, the branch pipe inserting portion 10 of the branch pipe repairing member 2 mounted on the main pipe repairing member 1 naturally fits into the branch pipe P2 and closely adheres, and the sealing portion 20 of the branch pipe inserting portion 10 as shown in FIG. 6. ) Is pressed between the main building repair member 1 and the inner wall of the main building P1.

5E and 5F show the branch pipe repair member 6 installed on the branch pipe P2 to bring the branch pipe inserting portion 10 of the branch pipe repair member closer to the branch pipe P2. To this end, when the installation of the main repair member 1 is completed, the expansion device 3 of the repair device is removed from the main repair member 1. Thereafter, as shown in FIG. 5E, the branch pipe repair member 6 is mounted in the contracted state in the auxiliary expansion device 7 of the repair device and inserted into the branch pipe inserting portion 10 to expand. Then, the branch pipe repair member 6 expands together, and the branch pipe inserting portion 10 is strongly adhered to the inner wall of the branch pipe P. Thereafter, when the auxiliary expansion device 7 is removed from the branch repair member 6, the branch repair member 6 is self-fastened to maintain the expanded state as shown in FIG. It is fixed in close contact with P2).

Thus, the branch pipe inserting portion 10 and the sealing portion 20 of the branch pipe repair member 2 as shown in Figure 6 is firmly in close contact with the connection between the main pipe (P1) and the branch pipe (P2) while the branch pipe The repair process is completed.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the branch pipe repair member according to the present invention and the repair method using the same, it is possible to unmanned repair at a remote location more quickly and conveniently the connection between the main building and the branch pipe.

In addition, since the present invention proceeds in a non-excavation manner, it is possible to minimize time and economic losses due to excavation.

In addition, the present invention can be easily repaired by the socket method despite the "T" form of the pipe portion of the connection portion that requires repair.

In addition, the present invention can be repaired as well as the adjacent portion as well as the connection between the main building and the branch of the main building repair member and the branch building repair member developed in the past.

Claims (10)

Repair the connecting portion of the main pipe (P1) and branch pipe (P2) branching from the main pipe (P1), and is expanded in the main pipe (P1) after being inserted into the main pipe (P1) in a contracted state wound in a cylindrical shape and expanded As a branch pipe repair member supported by the main repair member 1 in close contact with A cylindrical branch pipe inserting portion 10 inserted into the branch pipe P2 and in close contact with an inner wall thereof; It is formed along the circumferential direction on the rear end outer circumferential surface of the branch pipe inserting portion 10 when the main body repair member 1 is in close contact with the inner wall of the main pipe (P1) is pressed between the sealing to be in close contact with the inner wall of the main pipe (P1) Branch pipe repair member, characterized in that configured to include a portion (20). The method of claim 1, It is formed along the circumferential direction on the outer end surface of the rear end portion of the branch pipe inserting portion 10, and is formed at a position spaced rearward from the sealing portion 20, the perforated portion of the main repair member (1) after perforating Branch pipe repair member, characterized in that it further comprises a coupling portion 30 to be fitted to hold the main body repair member (1) from the outside and the inside together with the sealing portion (20). The method according to claim 1 or 2, The branch pipe inserting portion 10 is wound in a cylindrical shape and is further in close contact with the inner wall of the branch pipe P2 by the branch retaining member 6 which is inserted into the branch pipe inserting portion 10 and then expanded. Branch pipe repair member. The method of claim 3, The branch pipe repair member, characterized in that the material of the branch pipe repair member is rubber. The method of claim 4, wherein Branch member outer peripheral surface of the branch insertion part 10 is characterized in that the branch pipe repair member, characterized in that it is formed convexly along the circumferential direction so as to be in close contact with the inner wall of the branch pipe (P2). delete delete As a branch pipe repairing method for repairing the connection portion of the main pipe and the branch pipe (P2) branched from the main pipe (P1) by using a branch pipe repair member, The main tube repair member 1, which is wound in a cylindrical shape and shrunk, is expanded from the main tube P1 at the connection portion to be in close contact with the inner wall of the main tube P1, thereby inserting the branch tube repair member into the branch pipe P2. The branch pipe repair method, characterized in that for supporting and fixing. The method of claim 8, The branch pipe repair member 6 which is wound in a cylindrical shape and contracted is expanded from the branch pipe P2 of the connection portion to be in close contact with the inner wall of the branch pipe P2, thereby further contacting the branch pipe repair member to the branch pipe P2. Branch pipe repair method characterized in that. The method of claim 9, The branch pipe repair member has a cylindrical branch pipe inserting portion 10 which is made of rubber, and is inserted into the branch pipe P1 to be in close contact with the inner wall of the branch pipe P2 when the branch pipe repair member 6 is expanded. Is formed along the circumferential direction on the rear end outer circumferential surface of the branch pipe inserting portion 10 when the main repairing member 1 is in close contact with the inner wall of the main pipe (P1) is pressed between the main pipe (P1) inner wall is in close contact with the inner wall of the main pipe (P1) The disk-shaped sealing portion 20 and the disk-shaped coupling portion 30 is formed along the circumferential direction on the outer circumferential surface of the rear end portion of the branch pipe inserting portion 10 and spaced apart from the sealing portion 20 to the rear side. Consists of including, After inserting the main repair member 1 into the main pipe P1 and expanding the main repair member 1, the main assembly repair member 1 is perforated and then the coupling part 30 of the branch repair member is inserted into the drill hole. Branch repair method, characterized in that further comprising the step of mounting the engine repair member to the main repair member (1).

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