KR20230042765A - Repairing devices and repair methods for water supply and sewerage pipes - Google Patents

Abstract

The present invention relates to a water supply and sewage buried pipe partial section repairing apparatus and a repairing method. More specifically, according to the present invention, a plurality of flexible connecting joint pipes are continuously installed between first and second flexible fixed joint pipes installed at the body inside of the repairing apparatus repairing the wall surface of a cracked water supply and sewage buried pipe or a damaged buried pipe. Therefore, a structure of a body is improved so that the same can be coupled and separated by a coupling means. As a result, it is possible to adjust a repair length of the body, a window seat, and a repair seat, so that each section can be repaired. The water supply and sewage buried pipe partial section repairing apparatus of the present invention comprises: the body (10); a joint means (20).

Description

Repairing devices and repair methods for water supply and sewage pipes}

The present invention relates to a partial section repair device and a repair method for buried water supply and sewage pipes, and more particularly, to first and second flexible devices installed inside the body of a repair device for repairing cracks or damaged buried pipes on the wall of water and sewage buried pipes. A plurality of flexible connecting joint tubes are continuously installed between the fixed joint tubes to improve the structure of the body so that they can be combined and separated by coupling means, and the repair length of the body, window sheet, and repair sheet can be adjusted to repair the section. It relates to a partial section repair device and repair method of a water supply and sewage buried pipe.

Various water supply and sewage pipes buried in the ground gradually deteriorate over time, and corrosion occurs, resulting in leakage of a huge amount of water. There is a problem of polluting the living environment, such as flowing out of the buried pipe and contaminating the soil as well as the groundwater.

In this way, in repairing old buried pipes with damage such as cracks, when repairing the entire buried pipe, a non-drilling pipe repair device and method are used. The non-drilled pipe repair device and method do not dig the ground, As a method of forming a new composite pipe in the buried pipe by inserting a reinforcing tube into an old buried pipe with cracks, etc., it is a method that has many advantages in terms of workability, reliability, and economy because it does not require road restoration work.

In general, the non-drilling pipe repair method is a method of inserting and fixing a reinforcing tube formed of a waterproof coating layer or a film layer and an adhesive resin-impregnated felt layer into the inside of an old buried pipe. In one state, the reinforcing tube is inverted into the buried pipe, so that the adhesive resin-impregnated felt layer, which was the inner surface, is inverted to the surface and adhered to the inner wall of the buried pipe, so that the reinforcing tube is added to the inner wall of the buried pipe.

However, in the case of repairing the entire buried pipe as described above, there is no problem, but in the case of partially repairing the old pipe of the buried pipe, there is a problem in that the non-drilling pipe repair method cannot be applied.

In order to secure such a problem, recently, an unmanned repair device that can partially repair is used. Looking at the conventional registered patent No. 10-0639268 partial repair device and method for buried water supply and sewage pipes, a plurality of driving wheels on the front A moving member 10 formed so that the housing 11 in which the housings 14 are installed are symmetrical to each other while maintaining a predetermined distance, and having a fixing bracket 19 on the inside; a bending member 20 connecting the front/rear housings 11 in the longitudinal direction and enabling bending between the housings 11; A reinforcing tube 30 fixed to the rear of the housing 11 on both sides to seal the inside and expandable by high-pressure air introduced into the housing 11; and a repair sheet 40 that is sewn at both ends while forming a circle on the outer periphery of the reinforcing tube 30 and attached to the inner wall of the sewer pipe to be hardened.

In the invention of Patent Document 1, since the entire connecting pipe is integrally connected with a joint wire chain between the connecting pipe and the connecting pipe, it is difficult to adjust the length of the connecting pipe according to the repair length of the repair sheet, and the joint wire chain is formed in a circular shape. Therefore, there is a problem in that the connection pipe cannot be freely bent by a certain angle by the joint wire chain when the joint wire chain is damaged in the process of passing through the difficult and continuous coupling of the connecting pipe and the curved pipe.

In the invention of Patent Document 1, since the reinforcing tube is installed inside the housing, it is difficult to repair and replace the reinforcing tube, and it is difficult to change the length of the reinforcing tube installed in the housing, so it is difficult to adjust the length of the connecting pipe. there is.

In the case of the repair sheet installed on the circumferential surface of the reinforcing tube, it is difficult to make and use several repair devices due to the disadvantage that it cannot be adjusted appropriately for the range of cracks and damaged parts of the buried pipe.

Republic of Korea Registration No. 10-0639268

The present invention is to solve the above conventional problems, and an object of the present invention is to continuously install a plurality of flexible joint joints between the first and second flexible fixed joint tubes installed inside the body of a repair device to act as a coupling means. The part of the water supply and sewage buried pipe by improving the structure of the body so that it can be combined and separated so that the length of the expansion sheet and the repair sheet can be adjusted in response to the repair length of the section of the buried pipe that cracks or is damaged on the wall of the water supply and sewage pipe. It is to provide a section maintenance device.

Another object of the present invention is to protrude the sheet fixing part on the rear circumferential surface of the first and second bodies so that both ends of the expansion sheet can be coupled to be fixed and separated using a fixing band, and the first and second bodies It is to provide a partial section repair device for water supply and sewage buried pipes so that domestic sewage can pass through and move inside the buried pipe by penetrating the inside.

Another object of the present invention is to form wrinkles on the circumferential surface of the body of the first and second flexible fixed joint tubes and flexible joint tubes by continuously intersecting peaks and valleys, so that when moving along the curved buried tube, the wrinkles can be moved by a certain angle. It is to provide a partial section repair device for water and sewage buried pipes that can be bent with free materials.

Another object of the present invention is the first, second, and third rotating members of the coupling means in a state in which the auxiliary flange formed at the fixing part of the first and second flexible joint tubes and the connection flange formed at the connection part of the flexible joint tube are in close contact. It is to provide a partial section repair device for water supply and sewage buried pipes that can be constructed by freely changing the lengths of the body, expansion sheet, and repair sheet by fixing and separating to wrap and adjusting the length of the flexible joint pipe.

Another object of the present invention is to improve the structure of the first and second flexible fixed joint tubes and flexible joint tubes installed inside the body so that the damaged buried pipe of 1m to 1.5m needs to be repaired 3 to 4 times. In the process of repeating the repair work, the problem of lifting the joint where the repair sheet overlaps with the repair sheet, which requires additional work to be carried out, can be completed by using one repair device. Therefore, it is to provide a partial section repair device and repair method for water and sewage buried pipes that can reduce construction costs.

In order to achieve the object of the present invention as described above, the water supply and sewage buried pipe partial section repair device according to the present invention is a water and sewage buried pipe partial section repair device for repairing cracks and damaged parts of water and sewage buried pipes buried in the ground, A body composed of a first body and a second body installed apart from each other in the forward and backward directions and introduced into the buried pipe, and first and second flexible fixed joint pipes are installed inside the first body and the second body, A plurality of flexible connecting joint tubes are connected between 1 and 2 flexible fixed joint tubes, and a joint means is installed to move along the curved buried tube, and a repair sheet is placed on the circumferential surface of the expansion sheet wrapped around the outer circumferential surface of the body. and a drive wheel installed at the front and rear of the first body and the second body to smoothly insert and move the curved buried pipe, and the first and second flexible fixed joint pipes and flexible connecting joint pipes of the joint means. The middle part of the body formed with wrinkles while the peaks and valleys continuously intersect, and a fixing flange is formed on the fixing part formed on one end of the body of the first and second flexible fixed joint tubes, and is fixed to the inside of the first and second bodies with bolts. And, by continuously installing the connection part formed on the body of the flexible joint joint pipe to the fixing part formed on the body opposite to the fixed flange, the curved buried pipe is quickly inserted and moved, and the sewage flows through the inside of the body and the joint means. It is characterized by being able to move through.

In the body of the present invention, driving wheels are fixed to the front and rear of the first and second bodies, and a fixing band is formed by combining both ends of the expansion sheet by protruding a sheet fixing part on the rear circumferential surface of the first and second bodies. It has a feature that can be fixed and separated by using, and a feature that allows sewage inside the buried pipe to move by forming a through hole inside the body.

The first and second flexible fixed joint tubes and flexible connecting joint tubes of the present invention form wrinkles while continuously crossing peaks and valleys on the circumferential surface of the body, and are freely bent by a certain angle by the wrinkles when moving along the curved buried pipe and a fixed flange is formed on the fixing part formed on one end of the body of the first and second flexible fixed joint tubes to adhere to the inner side of the first and second bodies and fix them with bolts, and is coupled to the first and second bodies. An auxiliary flange protrudes from the end of the fixing part formed on the body opposite to the fixed flange, the connection part is integrally formed at both ends of the body of the flexible joint joint, and the connection flange is formed to protrude from the end of the connection part, Characterized in that a through hole is formed inside the body.

The coupling means of the present invention forms first, second, and third rotation members having seating grooves formed therein so that the connection flange and the auxiliary flange can be inserted, and the first, second, and third rotation members are connected to each other. By combining the rotating shaft to surround the connecting flange and the auxiliary flange made of a circle, forming a coupling protrusion at the end of the first and third rotating members to protrude and inserting a bolt inside to fix the first, second and third rotating members characterized by

According to the present invention as described above, the present invention is to continuously install a plurality of flexible joint joints between the first and second flexible fixed joint pipes installed inside the body so as to improve the structure of the maintenance device, and inside the buried pipe manhole It can be inserted smoothly, and the length of section repair work can be selected according to the working conditions, and the expansion sheet and repair sheet are used in response to cracks on the wall of the water supply and sewage buried pipe or section repair area of the damaged buried pipe. By extending and adjusting the length, there is an effect that the repair work, which was repeated several times in the past, can be completed with one repair work.

The present invention protrudes the sheet fixing part on the rear circumferential surface of the first and second bodies to combine both ends of the expansion sheet to fix and separate it using a fixing band, and the interior of the first and second bodies. There is an effect that the living sewage inside the buried pipe can move through the body by passing through the pipe.

In the present invention, the first and second flexible fixed joint tubes and the flexible connecting joint tube form wrinkles while continuously intersecting peaks and valleys on the circumferential surface of the body, and when moving along the curved buried pipe, the wrinkles are free data by a certain angle by the wrinkles. It has the effect of allowing it to be bent so that it can be quickly inserted and moved into the buried pipe manhole.

The present invention relates to the first and second coupling means of the coupling means so as to surround the circumferential surface of the circular connection flange in a state in which the auxiliary flange formed at the fixing portion of the flexible joint tube and the connection flange formed at the connection portion of the flexible joint tube are brought into close contact with each other. By installing 2,3 rotating members, it is possible to adjust the length of the flexible connecting joint tube, so that the length of the body, expansion sheet, and repair sheet can be freely changed for construction.

The present invention improves the structure of the first and second flexible fixed joint tubes and flexible connection joint tubes installed inside the body to eliminate the inconvenience of repeating repair work 3 to 4 times for a damaged buried pipe of 1m to 1.5m. In the process of repeating the repair work and the problem of lifting the joint where the repair sheet overlaps with the repair work, the problem of having to carry out additional work can be completed by using one repair device. It has the effect of reducing the construction cost.

1 is a schematic diagram of the overall operation of the maintenance device of the present invention.
Figure 2 is a partially enlarged cross-sectional view of a state in which the repair device of the present invention is installed in a buried pipe.
Figure 3 is a partially enlarged cross-sectional view of the repair device of the present invention moving a curved buried pipe.
Figure 4 is a partially enlarged cross-sectional view of section repairing a cracked buried pipe using a repair sheet of the repair device of the present invention.
Figure 5 is a partial configuration diagram of the joint means installed in the repair device of the present invention.
Figure 6 is a front configuration view of the coupling means for coupling the joint means to the repair device of the present invention.
Figure 7 is a process chart showing the entire process of the repair method of the present invention.

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

1 to 7, the present invention is a body 10 formed with first and second bodies 11 and 12 moving inside the buried pipe, the first and second bodies 11 and 12 The first, second, and third rotations of the coupling means 30 of the joint means 20 consisting of the first and second flexible fixed joint tubes 21 and 21a and a plurality of flexible connecting joint tubes 23 installed inside the It is configured to be fixed and separated using members 31, 32, and 33.

The body 10 moving by entering the inside of the buried pipe is driven in front and rear of the first and second bodies 11 and 12 in a state where the first and second bodies 11 and 12 are spaced apart at a certain interval. The wheel 13 is fixed so that it can move quickly along the buried pipe, and the sheet fixing part 14 is protruded from the rear circumferential surface of the first and second bodies 11 and 12 to expand the sheet 15 The length of the body 10, the expansion sheet 15, and the repair sheet 17 can be fixed and separated using the fixing band 16 by combining both ends of the body 10 according to the length of the crack area of the buried pipe to be described later. It is characterized in that it can be installed by adjusting, and a repair sheet 17 is installed on the circumferential surface of the expansion sheet 15 to perform maintenance work on the buried pipe, and the first and second bodies 11 and 12 A through-hole 19 is formed in the center of the inner side to allow domestic sewage inside the buried pipe to move, and a tow ring 18 is installed in front of the first body 11 to the opposite side where the body 10 is put. The wire of the installed winch is connected to the towing ring 18 so that the body 10 can be moved along the buried pipe.

In the joint means 20 installed inside the body 10, first and second flexible fixed joint tubes 21 and 21a are installed inside the first and second bodies 11 and 12, and the The fixing flange 22b is integrally formed on the fixing part 22c formed at one end of the body 22 of the first and second flexible fixed joint tubes 21 and 21a, and is attached to the first and second bodies 11 and 12. It is fixed using bolts on the inside, and an auxiliary flange 22d is attached to the end of the fixing part 22c formed on the body 22 opposite to the fixing flange 22b coupled to the first and second bodies 11 and 12. is protruded, and a flexible connection joint tube 23 is installed between the first and second flexible fixed joint tubes 21 and 21a, and the connection parts are connected to both ends of the body 24 of the flexible joint tube 23. (24b) is integrally formed, and the connection flange 24c is protruded at the end of the connection portion 24b to form the flexible connection joint tube 23 and the flexible connection joint tube in close contact with the auxiliary flange 22b ( The length of the body 10, the expansion sheet 15, and the repair sheet 17 can be adjusted by continuously bringing the connection flange 24c of 23) into close contact, and the first and second flexible fixed joint tubes 21 and 21a ) and the flexible joint joint pipe 23 form wrinkles 22a and 24a while continuously crossing mountains and valleys on the circumferential surface of the bodies 22 and 24, thereby forming wrinkles 22a when moving along the curved buried pipe. It is characterized by improving the structure so that it can be freely bent by a certain angle by (24a) so that the curved buried pipe can be moved quickly.

The coupling means 30 for fixing and separating the joint means 20 has a first seating groove 34 formed on the inside so that the circumferential surfaces of the connection flange 24c and the auxiliary flange 22d can be inserted. The second and third rotation members 31, 32, and 33 are formed, and the first and second rotation members 31 and 32 are connected to the second and third rotation members 32 and 33. By coupling the rotating shaft 35 to the connected part, each of the first, second, and third rotating members 31, 32, and 33 can rotate around the second rotating member 32 so that the connection made in a circle Maintaining a firmly fixed state while surrounding the circumferential surfaces of the flange 24c and the auxiliary flange 22d, by protruding the coupling protrusion 36 at the ends of the first and third rotating members 31 and 33, At one end of the coupling protrusion 36, a fixed bolt (B) is installed to be rotatable, and a handle 37 is formed on the other side to fasten and separate the bolt (B) to form the first, second, and third rotating members. (31) The entire length of the body 10 can be adjusted by firmly fixing the connection flange 24c and the auxiliary flange 22d inside the (32) and 33.

The water supply buried pipe section repair method according to the present invention configured as described above is constructed as follows.

Washing step (S100),

Cracks and damaged parts inside the buried pipe are first checked using a CCTV camera, foreign substances attached around the buried pipe are removed using a cleaning device, and then the inside of the buried pipe is checked again using a CCTV camera to detect cracks and damage. Check the area of the damaged area.

Preparation step (S200),

When the cleaning operation is completed, the first and second flexible fixed joint tubes 21 of the first body 11 and the second body 12 can adjust the length of the body 10 to a size corresponding to the cracked and damaged repair area. ) (21a) after continuously connecting a plurality of flexible joint tubes 23 between the first, second, and third rotating members 31, 32, and 33 as shown in FIG. 6, the seating groove 34 In a state where the auxiliary flange 22d and the connection flange 24c are coupled so as to surround and the bolt B is inserted into the coupling protrusion 36, the handle 37 is rotated to insert the bolt B into the coupling protrusion 36. and insert both ends of the expansion sheet 15 into the sheet fixing parts 14 of the first and second bodies 11 and 12 and fix it with a fixing band 16, and the expansion sheet 15 By coupling the repair sheet 17 to the circumferential surface of the body 10, the expansion sheet 15, and the operation of adjusting the overall length of the repair sheet 17 impregnated with the adhesive resin can be quickly performed.

Entry step (S300),

When the preparation step is completed, when the body 10 of the repair device enters the buried pipe inlet direction, the wire of the winch installed on the opposite side of the inlet direction to the tow ring 18 of the first body 11 is connected to the tow ring 18 When operated, the drive wheel 13 installed in the body 10 moves along the buried pipe, and as shown in FIG. 3, when the body 10 enters the curved buried pipe, the body of the flexible joint joint pipe 23 (24) While being freely bent by a certain angle by the wrinkles 24a formed on the circumferential surface, the buried pipe moves quickly and moves quickly to the cracked or damaged part of the buried pipe.

Maintenance step (S400),

When high-pressure air is injected into the body 10 in a state where the body 10 is moved to the cracked position of the buried pipe, the expansion sheet 15 expands and the repair sheet 17 adheres to the inner wall of the cracked buried pipe. If the cracked buried pipe is repaired using a conventional repair device, only work within 400 mm is possible, so if the length to be repaired is 1 m to 1.5 m, the repair device must be repeated 3 to 4 times. Inconvenience, the problem of lifting the joint where the repair sheet and the repair sheet overlap in the process of repeatedly curing the repair sheet, and the gap between the wall of the buried pipe and the repair sheet due to wrinkles or stacking in the process of working the repair sheet several times However, as shown in FIG. 4, the present invention repairs the cracked and damaged section of 1m to 1.5m at a time using one repair device. It can be finished with work, so it has the feature of reducing construction time and construction cost.

Finishing step (S500),

The repair sheet 17 can be cured quickly by injecting dry and wet heat into the body 10, and when the hardening work of the repair sheet 17 is completed, the body 10 is returned to withdraw the equipment. In the state, CCTV cameras are put in to check the repair status, and then the work is completed.

As described above, the repair device and method solve the disadvantage that the existing repair device cannot quickly move the refracted buried pipe by using the first and second flexible fixed joint pipes 21 and 21a and the flexible connecting joint pipe 23 The coupling means 30 by continuously connecting a plurality of flexible joint joints 23 to solve the problem of performing the repair device several times regardless of the repair area of the cracked and damaged buried pipe and the problem solved by using It has the feature of being able to carry out work quickly without being limited by the length of cracks and damaged buried pipes only by the process of combining them.

The water supply buried pipe section repair device and repair method according to the present invention described above are not limited to the above-described embodiments, and are conventional in the field to which the present invention belongs without departing from the gist of the present invention claimed in the following claims. Anyone with knowledge has the technical spirit to the extent that it can be implemented by making various changes.

10: body 11: first body
12: second body 13: driving wheel
14: sheet fixing part 15: expansion sheet
16: fixed band 17: repair sheet
18: towing hook 19: through hole
20: joint means 21: first flexible fixed joint tube
22: body 22a: wrinkles
22b: fixed flange 22c: fixed portion
22d: auxiliary flange 23: flexible joint joint
24: body 24a: wrinkles
24b: connection portion 24c: connection flange
25: through hole 30: coupling means
31: first rotating member 32: second rotating member
33: third rotating member 34: seating groove
35: rotation shaft 36: coupling protrusion
37: handle 38: connecting wire

Claims (12)

In the water supply and sewage buried pipe partial section repair device having an unmanned repair device for repairing cracks and damaged parts of buried water and sewage pipes buried in the ground,
The body 10 composed of the first body 11 and the second body 12 installed apart from each other in the forward and backward directions and introduced into the buried pipe, and the inside of the first body 11 and the second body 12 The first and second flexible fixed joint tubes 21 and 21a are installed, and a plurality of flexible joint tubes 23 are connected between the first and second flexible fixed joint tubes 21 and 21a to flex. A joint means 20 is installed to move along the Jin buried pipe, a repair sheet 17 is installed on the circumferential surface of the expansion sheet 15 wrapped around the outer circumferential surface of the body 10, and the first body ( 11) and drive wheels 13 installed at the front and rear of the second body 12 to smoothly insert and move the curved buried pipe,
The first and second flexible fixed joint tubes 21 and 21a and the flexible connecting joint tube 23 of the joint means 20 form wrinkles 22a and 24a while the peaks and valleys continuously intersect in the middle. A fixing flange 22b is formed on one body 22, 24 and the fixing part 22c formed at one end of the body 22 of the first and second flexible fixed joint tubes 21, 21a to form the first and second flexible joint tubes 21 and 21a. It is fixed to the inside of the body 11 and 12 with bolts, and the connection part formed on the body 24 of the flexible joint tube 23 to the fixing part 22c formed on the body 22 opposite to the fixed flange 22b. (24b) is continuously installed to quickly move the curved buried pipe, and penetrates the inside of the body 10 and the joint means 20 so that domestic sewage can move through the inside. Partial section repair device. The method of claim 1, wherein the body 10 fixes driving wheels 13 to the front and rear of the first and second bodies 11 and 12, and the first and second bodies 11 and 12 A sheet fixing part 14 is protruded from the rear circumferential surface of the expansion sheet 15, and both ends of the expansion sheet 15 are coupled and fixed using a fixing band 16, and the first and second bodies 11 and 12 A through-hole 19 is formed in the center of the inner side so that domestic sewage inside the buried pipe can move, and a tow hook 18 is coupled to the front of the first body 11 to move the body 10 along the buried pipe. Water and sewage buried pipe partial section repair device, characterized in that it can be moved. According to claim 1, wherein the first and second flexible fixed joint tubes (21) (21a) and the flexible joint joint tube (23) have wrinkles while continuously intersecting peaks and valleys on the circumferential surface of the body (22) (24). (22a) (24a) is formed so that it can be freely bent by a certain angle by the wrinkles (22a) (24a) when moving along the curved buried pipe, and the first and second flexible fixed joint pipes 21 ( A fixing flange 22b is formed on the fixing part 22c formed at one end of the body 22 of 21a) and adhered to the inside of the first and second bodies 11 and 12 to be fixed with bolts, and the first and second An auxiliary flange 22d is protruded from the end of the fixing part 22c formed on the body 22 opposite to the fixing flange 22b coupled to the body 11 and 12, and the flexible joint joint 23 The connection portion 24b is integrally formed at both ends of the body 24, the connection flange 24c is formed to protrude from the end of the connection portion 24b, and the through hole in the inside of the body 22 and 24 ( 25) Water and sewage buried pipe partial section repair device, characterized in that formed. The method of claim 3, characterized in that the connection flange (24c) and the auxiliary flange (22d) are in close contact, and the connection flange (24c) and the connection flange (24c) are continuously brought into close contact with each other to be coupled by the coupling means (30). Water supply and sewage buried pipe partial section repair device. The first, second, and third rotating members (31) of claim 4, wherein the coupling means (30) has a seating groove (34) formed therein so that the connection flange (24c) and the auxiliary flange (22d) can be inserted therein. ) (32) (33) is formed, and the rotation shaft 35 is coupled to the portion where the first, second, and third rotation members 31, 32, and 33 are connected to form a circular connection flange 24c and To surround the auxiliary flange 22d, and to form coupling protrusions 36 at the ends of the first and third rotating members 31, 32, and 33 to tighten and separate the bolts B inserted inside. Water supply and sewage buried pipe partial section repair device, characterized in that by installing a handle (37) to fix the first, second, and third rotating members (31) (32) (33). The method of claim 1, characterized in that the connection wire (38) is installed to mutually connect the fixed flanges (22b) of the first and second flexible fixed joint pipes (21) (21a). Device. In the water supply and sewage buried pipe partial section repair device having an unmanned repair device for repairing cracks and damaged parts of buried water and sewage pipes buried in the ground,
The body 10 composed of the first body 11 and the second body 12 installed apart from each other in the forward and backward directions and introduced into the buried pipe, and the inside of the first body 11 and the second body 12 The first and second flexible fixed joint tubes 21 and 21a are installed, and a plurality of flexible joint tubes 23 are connected between the first and second flexible fixed joint tubes 21 and 21a to flex. A joint means 20 is installed to move along the Jin buried pipe, a repair sheet 17 is installed on the circumferential surface of the expansion sheet 15 wrapped around the outer circumferential surface of the body 10, and the first body ( 11) and drive wheels 13 installed at the front and rear of the second body 12 to smoothly insert and move the curved buried pipe,
The first and second flexible fixed joint tubes 21 and 21a and the flexible connecting joint tube 23 of the joint means 20 continuously intersect peaks and valleys on the circumferential surfaces of the bodies 22 and 24 and have wrinkles. (22a) (24a) is formed so that it can be freely bent by a certain angle by the wrinkles (22a) (24a) when moving along the curved buried pipe, and the first and second flexible fixed joint pipes 21 ( A fixing flange 22b is formed on the fixing part 22c formed at one end of the body 22 of 21a) and adhered to the inside of the first and second bodies 11 and 12 to be fixed with bolts, and the first and second An auxiliary flange 22d is protruded from the end of the fixing part 22c formed on the body 22 opposite to the fixing flange 22b coupled to the body 11 and 12, and the flexible joint joint 23 The connection part 24b is integrally formed at both ends of the body 24, the connection flange 24c is formed to protrude from the end of the connection part 24b, and the auxiliary flange 22d and the connection flange 24c are brought into close contact. In this state, the connection flanges 24c of the plurality of flexible joint tubes 23 are continuously brought into close contact and coupled using the first, second, and third rotation members 31, 32, and 33 of the coupling means 30. and to be separated so that the length of the repair of the body 10, the expansion sheet 15, and the repair seat 17 can be adjusted, and the body 22, 24 of the body 10 and the joint means 20 ) Water and sewage buried pipe partial section repair device, characterized in that it penetrates the inside so that domestic sewage can move through the inside. The method of claim 7, wherein the coupling means (30) is the first, second, third rotating member (31) formed with a seating groove (34) on the inside so that the connection flange (24c) and the auxiliary flange (22d) can be inserted. ) (32) (33) is formed, and the rotation shaft 35 is coupled to the portion where the first, second, and third rotation members 31, 32, and 33 are connected to form a circular connection flange 24c and To surround the auxiliary flange 22d, and to form coupling protrusions 36 at the ends of the first and third rotating members 31, 32, and 33 to tighten and separate the bolts B inserted inside. Water supply and sewage buried pipe partial section repair device, characterized in that by installing a handle (37) to fix the first, second, and third rotating members (31) (32) (33). In the water supply and sewage buried pipe partial section repair method for repairing cracks and damaged parts of buried water and sewage pipes buried in the ground,
A cleaning step (S100) of checking cracks and damaged parts in the buried pipe and removing foreign substances attached therearound;
A plurality of flexible connecting joint tubes 23 are continuously connected between the first and second flexible fixed joint tubes 21 and 21a of the first body 11 and the second body 12 installed apart from each other in the forward and backward directions. Then, the first, second, and third rotating members 31, 32, and 33 of the coupling means 30 are coupled to the expansion sheet 15 coupled to the body 10 and the repair sheet 17 impregnated with the adhesive resin. ) Preparation step of adjusting the working length (S200);
When the wire of the winch is connected to the towing ring 18 installed in the first body 11 and the body 10 enters the buried pipe entrance, the driving wheel 13 installed in the body 10 moves along the buried pipe , When the body 10 enters the curved buried pipe, it is freely bent by a certain angle by the wrinkles 24a formed on the circumferential surface of the body 24 of the flexible joint pipe 23, and the manhole of the buried pipe An entry step (S300) of quickly inserting and moving quickly to the cracked and damaged part of the buried pipe;
When high-pressure air is injected into the body 10 in a state where the body 10 is moved to the cracked position of the buried pipe, the expansion sheet 15 expands and the repair sheet 17 adheres to the inner wall of the cracked buried pipe. Buried pipe repair step (S400) to maintain the status;
A finishing step (S500) of injecting moist heat into the body 10 to quickly harden the repair sheet 17 and then returning the body 10;
Water and sewage buried pipe section repair method comprising a. 10. The method of claim 9, wherein the body 10 fixes driving wheels 13 to the front and rear of the first and second bodies 11 and 12, and the first and second bodies 11 and 12 A sheet fixing part 14 is protruded from the rear circumferential surface of the expansion sheet 15, and both ends of the expansion sheet 15 are coupled and fixed using a fixing band 16, and the first and second bodies 11 and 12 A through hole 19 is formed in the center of the inner side to allow the sewage inside the buried pipe to move, and a tow ring 18 is coupled to the front of the first body 11 to move the body 10 along the buried pipe. Water and sewage buried pipe partial section repair method, characterized in that it can be done. 10. The method of claim 9, wherein the first and second flexible fixed joint tubes (21) (21a) and the flexible connecting joint tube (23) have wrinkles while continuously intersecting peaks and valleys on the circumferential surface of the body (22) (24). (22a) (24a) is formed so that it can be freely bent by a certain angle by the wrinkles (22a) (24a) when moving along the curved buried pipe, and the first and second flexible fixed joint pipes 21 ( A fixing flange 22b is formed on the fixing part 22c formed at one end of the body 22 of 21a) and adhered to the inside of the first and second bodies 11 and 12 to be fixed with bolts. An auxiliary flange 22d is protruded from the end of the fixing part 22c formed on the body 22 opposite to the fixing flange 22b coupled to the body 11 and 12, and the flexible joint joint 23 The connection portion 24b is integrally formed at both ends of the body 24, the connection flange 24c is formed to protrude from the end of the connection portion 24b, and the through hole in the inside of the body 22 and 24 ( 25). 10. The method of claim 9, wherein the coupling means (30) is the first, second, third rotating member (31) formed with a seating groove (34) on the inside so that the connection flange (24c) and the auxiliary flange (22d) can be inserted. ) (32) (33) is formed, and the rotation shaft 35 is coupled to the portion where the first, second, and third rotation members 31, 32, and 33 are connected to form a circular connection flange 24c and To surround the auxiliary flange 22d, and to form coupling protrusions 36 at the ends of the first and third rotating members 31, 32, and 33 to tighten and separate the bolts B inserted inside. Water supply and sewage buried pipe partial section repair method, characterized in that the first, second, and third rotating members (31, 32, 33) are fixed by installing a handle (37).

Images