KR102370702B1 - Apparatus and method for repairing pipe - Google Patents

Abstract

A pipe repair apparatus and method are disclosed. A pipe repair apparatus according to an embodiment of the present invention includes: a body frame that moves inside the pipe along the pipe; Flange members coupled to both ends of the body frame, respectively; an expansion member coupled to the flange member, spaced apart from the body frame, and expanding by receiving a fluid between the body frame and the body frame; and a repair material wound around the expandable member and repairing the damaged portion of the pipeline.

Description

Pipe repair device and method {APPARATUS AND METHOD FOR REPAIRING PIPE}

The present invention relates to a pipeline repair apparatus and method, and more particularly, to a pipeline repair apparatus and method capable of preventing the expandable member from falling out and restoring the expandable member taut.

In general, sewage pipes for treating wastewater discharged from homes or businesses or stormwater pipes for discharging rainwater into rivers are buried underground. A plurality of such sewage pipes are connected and used to move rainwater or wastewater to a sewage treatment plant or a river.

However, the sewage pipeline deteriorates over time and cracks are generated, or wastewater is leaked to the outside due to cracks, breakage, or separation of the connection part, which can cause environmental pollution such as soil contamination, as well as sludge or flow from the outside. Foreign substances accumulate, and odors are generated by foreign substances, sludge, and sediment.

When repairs are required for abnormal areas such as partial damage to a pipeline buried underground, a gap or a step at the joint of the pipeline, or a lifting phenomenon due to shrinkage of the resin on the repair material during the curing process. As a method of repairing under the condition of being buried in the There is a lining partial repair method, which is applied and impregnated, then hardened and partially repaired.

Referring to Republic of Korea Patent Registration No. 10-2094087, in the case of a conventional pipe line repair device, an expandable member is wound around a frame, and a fluid is supplied between the expandable member and the frame to expand the expandable member. That is, since the expandable member is not fixed to the frame but is wound around the frame, if a fluid is continuously supplied between the expandable member and the frame, there is a problem in that the expandable member is pulled out from the frame.

Republic of Korea Patent Registration Number: No. 10-2094087 (Announcement Date: March 26, 2020)

Accordingly, the technical problem to be achieved by the present invention is to provide a pipe repair apparatus and method capable of preventing the expansion member from falling out from the body frame.

In addition, it is to provide a pipe repair apparatus and method capable of restoring the expansion member taut even when it is crushed.

According to one aspect of the present invention, the body frame moving inside the conduit along the conduit; Flange members respectively coupled to both ends of the body frame; and an expansion member coupled to the flange member, spaced apart from the body frame, expanding by receiving a fluid supply between the body frame, and around which a repair material for repairing a damaged portion of the pipe line is wound around it. A maintenance device may be provided.

In addition, the flange member includes an inner flange member coupled to the body frame, and an outer flange member disposed on the outside of the inner flange member, and a portion of the expandable member is attached to the inner flange member and the outer flange member. can be fixed.

In addition, both ends of the expandable member may be respectively bent and interposed between the inner flange member and the outer flange member to be fixed.

In addition, it is disposed inside the body frame, coupled to the flange member, further comprising a cylinder member provided to be stretchable, the body frame can be adjusted in length by interlocking with the operation of the cylinder member.

And, the flange member includes a first flange member coupled to one end of the body frame, and a second flange member coupled to the other end of the body frame, wherein the body frame is attached to the first flange member. A first body frame coupled to and a second body frame coupled to the second flange member, wherein any one of the first body frame and the second body frame overlaps the other body frame. It may be arranged to move.

In addition, an LM guide may be provided on one of the first body frame and the second body frame, and the other body frame may be provided to move along the LM guide.

And, it is coupled to the flange member so as to pass through the flange member may further include a guide rod for guiding the movement of the flange member when the cylinder member is operated.

In addition, a stopper for stopping the movement of the flange member may be coupled to the guide rod.

In addition, a first screw thread is formed at an end of the guide rod, and a second screw thread corresponding to the first screw thread of the guide rod may be formed inside the stopper to move along the first screw thread of the guide rod. .

In addition, the guide rods are provided as a pair, and the stoppers each coupled to the pair of guide rods are also provided as a pair, and the pair of stoppers are positioned at the same position in the vertical direction. It may further include a position control plate for adjusting the position.

On the other hand, according to another aspect of the present invention, the main frame moving along the conduit to the damaged portion of the conduit; the step of expanding the expansion member coupled to the flange members respectively coupled to both ends of the body frame and spaced apart from the body frame by receiving a fluid between the body frame and the body frame; and attaching the repair material wound along the circumference of the expandable member to the damaged portion of the pipeline by expanding the expandable member.

In addition, the method may further include a step in which a cylinder member is disposed inside the body frame and coupled to the flange member, and the body frame is linked to the operation of the cylinder member to adjust the length.

And, the guide rod is coupled to the flange member to pass through the flange member to guide the movement of the flange member when the cylinder member is operated, and a stopper is coupled to the guide rod to stop the movement of the flange member. may include more.

Accordingly, the embodiments of the present invention have the effect of preventing the expandable member from falling out of the body frame by being coupled to the flange member coupled to the body frame.

In addition, even when the expandable member is crushed, there is an effect that the expandable member can be restored taut by the operation of the cylinder member.

1 is a cross-sectional view of a pipe repair apparatus according to a first embodiment of the present invention.
2 is a cross-sectional view of a state in which the expansion member is wrinkled in the pipe repair apparatus according to the second embodiment of the present invention.
Figure 3 is a cross-sectional view of a state in which the expansion member is restored taut by the cylinder member in the pipe repair apparatus according to the second embodiment of the present invention.
Figure 4 is a cross-sectional view of the expanded state of the expandable member in the pipe repair apparatus according to the second embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in this specification is only the most preferred embodiment of the present invention and does not represent all of the technical idea of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

In the drawings, the size of each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. Accordingly, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such description will be omitted.

As used herein, the term 'coupled' or 'connected' refers to a case in which one member and another member are directly coupled or directly connected, as well as when one member is indirectly coupled to another member through a joint member, or indirectly. Including cases connected to

Although the pipe repair apparatus and method according to each embodiment of the present invention can repair various types of pipelines, the following description is limited to the case of repairing the sewage pipe for convenience of explanation, but by this limited description It should be noted that the type of pipe is not limited.

1 is a cross-sectional view of a pipe repair apparatus according to a first embodiment of the present invention.

Referring to FIG. 1 , the pipe repair apparatus 10 according to the first embodiment of the present invention includes a body frame 100 , a flange member 200 , and an expansion member 300 .

The body frame 100 is provided to move inside the conduit (P) along the conduit (P). The body frame 100 may move inside the conduit P in various ways.

For example, the body frame 100 is connected to the towing line and the body frame 100 may be moved by the operation of a towing vehicle outside the pipeline P. In this way, the body frame 100 may move to the damaged portion inside the conduit (P).

Alternatively, the wheel W is coupled to the body frame 100 or the flange member 200 and may be configured to be movable by a power source (not shown) mounted on the body frame 100 or the flange member 200 . there is. However, the movement method of the body frame 100 is not limited thereto.

The body frame 100 may be made of various types of metal materials. However, the material of the body frame 100 is not limited thereto, and various materials such as a composite material having rigidity and reinforced plastic may be used.

The body frame 100 may include various photographing members (not shown) capable of photographing the inside of the conduit P, such as CCTV. The photographing member (not shown) may be provided to be able to rotate 360 degrees, or lighting equipment such as a fluorescent lamp, an incandescent lamp, an LED lamp, or a combination thereof may be provided to photograph the inside of the relatively dark pipe P. .

Here, the photographing member (not shown) may be connected to a cable, and power may be supplied to the photographing member (not shown) through the cable, or the image signal photographed by the photographing member (not shown) may be transmitted through the same pipe as the display unit ( P) It may be arranged to transmit to externally placed equipment.

The flange members 200 are respectively coupled to both ends of the body frame 100 . The flange member 200 may include a first flange member 200a coupled to one end of the body frame 100 and a second flange member 200b coupled to the other end of the body frame 100 .

The flange member 200 , that is, the first flange member 200a and the second flange member 200b may include an inner flange member 210 and an outer flange member 220 , respectively. Referring to FIG. 1 , the inner flange member 210 is disposed on the inner side compared to the outer flange member 220 and is coupled to the body frame 100 . And, the outer flange member 220 is disposed on the outside of the inner flange member (210).

The expandable member 300 is coupled to the flange member 200 while being spaced apart from the body frame 100 . And, when the fluid is supplied to the space between the expandable member 300 and the body frame 100 through the fluid supply line (L), the expandable member 300 expands.

The expandable member 300 may be made of various materials that are expanded by receiving a fluid. For example, the expandable member 300 may be made of rubber, but the material of the expandable member 300 is not limited to rubber.

In addition, a portion of the expandable member 300 , for example, both ends of the expandable member 300 may be bent and interposed between the inner flange member 210 and the outer flange member 220 to be fixed. Here, as shown in FIG. 1 , the expandable member 300 may be fixed through a bolt 230 passing through the inner flange member 210 and the outer flange member 220 .

A repair material 400 is wound around the expandable member 300 to repair the damaged portion of the conduit (P).

As described above, in the pipe repair apparatus 10 according to the first embodiment of the present invention, since the expandable member 300 is spaced apart from the body frame 100 and fixed to the flange member 200 , the expandable member 300 is the main body It is prevented from slipping out of the frame 100 .

The repair material 400 may be wound around the expandable member 300 and is provided to repair the damaged portion of the conduit (P). The repair material 400 may be made of various materials, and for example, it may be provided as a lining material manufactured by impregnating a nonwoven fabric with a resin so that it can be repaired without excavation, that is, a water supply pipe or a sewage pipe without excavation work. .

A method of repairing a damaged portion of the pipe line P by applying a bonding agent to the repair material 400 is common with known contents, and thus a detailed description thereof will be omitted.

Figure 2 is a cross-sectional view of a state in which the expansion member is wrinkled in the pipe repair apparatus according to the second embodiment of the present invention, and Figure 3 is expanded by the cylinder member in the pipeline repair apparatus according to the second embodiment of the present invention. It is a cross-sectional view of a state in which the member is restored taut, and FIG. 4 is a cross-sectional view of the expanded member in the pipe repair apparatus according to the second embodiment of the present invention.

Hereinafter, the operation and effect of the pipe repair apparatus 10 according to the second embodiment of the present invention will be described with reference to the drawings. However, the description common to the part described in the pipe repair apparatus 10 according to the first embodiment of the present invention is replaced with the above description.

The pipe repair apparatus 10 according to the second embodiment of the present invention is different from the first embodiment in that the cylinder member 500 is included in the body frame 100 .

Due to the repeated use of the expandable member 300 , plastic deformation is generated in the expandable member 300 , so that the expandable member 300 may be crushed as shown in FIG. 2 . This is similar to the occurrence of shriveling in the balloon when the process of injecting and discharging air into the balloon is repeated, the shriveling may also occur in the inflatable member 300 by continuous use of the inflatable member 300 .

However, if the expandable member 300 is wrinkled, the repairing material 400 cannot be adhered to the expandable member 300, so the repair quality of the damaged portion of the pipe line P may be deteriorated.

In order to prevent such deterioration of repair quality, the pipeline repair apparatus 10 according to the second embodiment of the present invention continuously uses the expansion member 300 to restore the main body taut when wrinkling occurs. It is disposed inside the frame 100 and includes a cylinder member 500 coupled to the flange member 200 .

The cylinder member 500 is provided to be stretchable as shown in FIGS. 2 and 3 . That is, as in FIG. 2 , when the cylinder member 500 is extended with respect to the expandable member 300 , which is crushed, the flange member 200 coupled to the cylinder member 500 moves away from the cylinder member 500 . and, thereby, the expandable member 300 is taut as shown in FIG. 3 .

And, after the expandable member 300 is tightened as in FIG. 3 , when the fluid is supplied to the space between the expandable member 300 and the body frame 100 through the fluid supply line L, the expandable member as shown in FIG. 4 . (300) expands.

Here, the first flange member 200a and the second flange member 200b respectively coupled to both sides of the cylinder member 500 may move according to the expansion and contraction of the cylinder member 500, or the first flange member ( 200a) and only one of the second flange members 200b may be provided to move.

On the other hand, the body frame 100 is provided so that the length is adjusted by interlocking with the operation of the cylinder member (500). To this end, the body frame 100 may include a first body frame 110 coupled to the first flange member 200a, and a second body frame 120 coupled to the second flange member 200b. .

In addition, one of the first body frame 110 and the second body frame 120 may move so that one body frame 100 overlaps the other body frame 100 .

For example, the LM guide 600 is provided on one body frame 100 of the first body frame 110 and the second body frame 120, and the other body frame 100 is the LM guide ( 600) may be provided to move along.

In addition, rails (not shown) of various shapes are formed on one body frame 100 of the first body frame 110 and the second body frame 120 , and the other body frame 100 has a rail ( Not shown) may be provided to move along.

However, the above description is only an example, and the method in which the first body frame 110 and the second body frame 120 overlap each other may be more diverse.

The guide rod 700 is coupled to the flange member 200 so as to penetrate the flange member 200 to guide the movement of the flange member 200 when the cylinder member 500 is operated. The guide rod 700 may be formed in a bar shape. And, the guide rod 700 may be one or more, for example, may be provided as a pair. Here, the flange member 200 may move in a straight line along the guide rod 700 .

The stopper 800 may be coupled to the guide rod 700 to stop the movement of the flange member 200 . When the guide rods 700 are provided as a pair, the stoppers 800 are also provided as a pair and are respectively coupled to the pair of guide rods 700 .

The stopper 800 stops the movement of the flange member 200 and limits the extension range of the cylinder member 500 . If there is no stopper 800 , if the cylinder member 500 continues to extend, the cylinder member 500 may be damaged by the elastic force of the expansion member 300 . The stopper 800 limits the extension range of the cylinder member 500 to prevent damage to the cylinder member 500 .

The stopper 800 may be provided to move along the guide rod 700 . Accordingly, the extension range of the cylinder member 500 can be adjusted to increase or decrease. To this end, a first screw thread 710 is formed at the end of the guide rod 700 , and a second screw thread (not shown) corresponding to the first screw thread 710 of the guide rod 700 is formed inside the stopper 800 . ) is formed.

For example, when a male thread is formed on the guide rod 700, a female thread is formed on the inside of the stopper 800, and when a female thread is formed on the guide rod 700, a male thread is formed on the inside of the stopper 800. there is.

And, when the stopper 800 is rotated, the stopper 800 moves along the guide rod 700 by the first screw thread 710 of the guide rod 700 and the second screw thread (not shown) of the stopper 800, , whereby the extension range of the cylinder member 500 can be changed.

The positioning plate 900 is provided to adjust the positions of the pair of stoppers 800 so that the pair of stoppers 800 are at the same position in the vertical direction. For example, if the pair of stoppers 800 disposed on the upper side and the lower side are respectively rotated, the pair of stoppers 800 are at different positions, and the positions of the pair of stoppers 800 are adjusted to be the same. It is not easy to do.

However, as in FIG. 3 , when the plate-shaped positioning plate 900 is coupled to the pair of stoppers 800 , the user rotates the pair of stoppers 800 so that the positioning plate 900 is vertical. If adjusted as much as possible, the positions of the pair of stoppers 800 are precisely aligned.

Hereinafter, the operation and effect of the pipe repair method according to an embodiment of the present invention will be described with reference to the drawings. However, descriptions common to those described in the pipe repair apparatus 10 according to the first and second embodiments of the present invention described above will be replaced with the aforementioned description.

First, the body frame 100 moves along the pipe (P) to the damaged portion of the pipe (P). Here, the body frame 100 may travel through the conduit P in various ways.

Next, a fluid such as compressed air or high-temperature air is supplied between the body frame 100 and the expandable member 300 to expand the expandable member 300 . Here, the expandable member 300 is spaced apart from the body frame 100 and is coupled to the flange members 200 respectively coupled to both ends of the body frame 100 .

Next, when the expandable member 300 is expanded, the repair material 400 wound along the circumference of the expandable member 300 moves toward the damaged portion of the pipe P and is attached to the pipe P, thereby ) is repaired.

Hereinafter, the operation and effect of the pipe repair method according to another embodiment of the present invention will be described with reference to the drawings. However, the description in common with the part described in the pipeline repair apparatus 10 according to the first and second embodiments of the present invention and the pipeline repair method according to one embodiment of the present invention described above is the above description. replace

As in the pipe repair apparatus 10 according to the second embodiment of the present invention described above, it includes a cylinder member 500 disposed inside the body frame 100 and coupled to the flange member 200 . That is, the cylinder member 500 is disposed inside the body frame 100 and coupled to the flange member 200 , and the body frame 100 is linked to the operation of the cylinder member 500 to adjust the length.

And, the guide rod 700 is coupled to the flange member 200 so as to penetrate the flange member 200 to guide the movement of the flange member 200 when the cylinder member 500 is operated, and the stopper 800 is the guide rod It is coupled to the 700 to stop the movement of the flange member 200 .

In the above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto and will be described below with the technical idea of the present invention by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims.

100: body frame 110: first body frame
120: second body frame 200: flange member
210: inner flange member 220: outer flange member
300: expandable member 400: repair material
500: cylinder member 600: LM guide
700: guide rod 710: first thread
800: stopper 900: position control plate

Claims (13)

a body frame moving inside the conduit along the conduit;
Flange members coupled to both ends of the body frame, respectively; and
It is coupled to the flange member, is spaced apart from the body frame, expands by receiving a fluid supply between the body frame and includes an expansion member around which a repair material for repairing a damaged portion of the pipeline is wound around it,
It is disposed inside the body frame, coupled to the flange member, further comprising a cylinder member provided to be stretchable,
The body frame is linked to the operation of the cylinder member, the length is adjusted,
The pipe repair apparatus further comprising a guide rod coupled to the flange member so as to pass through the flange member to guide the movement of the flange member when the cylinder member is operated. According to claim 1,
The flange member includes an inner flange member coupled to the body frame, and an outer flange member disposed outside the inner flange member,
A pipe repair apparatus, characterized in that a portion of the expansion member is fixed to the inner flange member and the outer flange member. 3. The method of claim 2,
Both ends of the expandable member are bent, respectively, and are interposed between the inner flange member and the outer flange member and fixed. delete According to claim 1,
The flange member includes a first flange member coupled to one end of the body frame, and a second flange member coupled to the other end of the body frame,
The body frame includes a first body frame coupled to the first flange member, and a second body frame coupled to the second flange member,
Pipeline repair apparatus, characterized in that one of the first body frame and the second body frame is moved so as to overlap the other body frame. 6. The method of claim 5,
An LM guide is provided on one of the first body frame and the second body frame, and the other body frame moves along the LM guide. delete According to claim 1,
A stopper for stopping the movement of the flange member is coupled to the guide rod. 9. The method of claim 8,
A first thread is formed at an end of the guide rod, and a second thread corresponding to the first thread of the guide rod is formed inside the stopper to move along the first thread of the guide rod. maintenance device. 10. The method of claim 9,
The guide rods are provided as a pair, and the stoppers each coupled to the pair of guide rods are also provided as a pair,
Pipeline repair apparatus, characterized in that it further comprises a position adjusting plate for adjusting the position of the pair of stoppers so that the pair of stoppers are at the same position in the vertical direction. moving the body frame along the conduit to the damaged portion of the conduit;
the step of expanding the expansion member coupled to the flange members respectively coupled to both ends of the body frame and spaced apart from the body frame by receiving a fluid between the body frame and the body frame;
attaching the repair material wound along the circumference of the expandable member to the damaged portion of the conduit by expanding the expandable member; and
A cylinder member is disposed inside the body frame and coupled to the flange member, the body frame comprising the step of adjusting the length by interlocking with the operation of the cylinder member,
A guide rod is coupled to the flange member so as to pass through the flange member to guide the movement of the flange member when the cylinder member is operated. delete 12. The method of claim 11,
A stopper is coupled to the guide rod to stop the movement of the flange member.

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