WO2020050531A1

WO2020050531A1 - Pipe interior repair device

Info

Publication number: WO2020050531A1
Application number: PCT/KR2019/010749
Authority: WO
Inventors: 이처례
Original assignee: 이처례
Priority date: 2018-09-07
Filing date: 2019-08-23
Publication date: 2020-03-12
Also published as: KR101956018B1

Abstract

A pipe interior repair device according to the present invention comprises: multiple structure units having cavities formed therein so as to have shapes corresponding to the circumference of the inner peripheral surface of a pipe, the structure units comprising multiple first coupling protrusion portions protruding toward the inside of the pipe, the structure units being formed to at least partially contact the inner peripheral surface of the pipe and being installed to be spaced apart along the longitudinal direction of the pipe; a first coupling unit comprising multiple second coupling protrusion portions meshing with the first coupling protrusion portions and comprising a first fixing/coupling portion and a first passage forming portion protruding toward the inside of the pipe, the first coupling unit being elongated along the longitudinal direction of the pipe so as to be coupled across multiple structure units; and a second coupling unit comprising a second fixing/coupling portion coupled to the first fixing/coupling portion and comprising a second passage forming portion coupled to the first passage forming portion so as to form a connecting passage therein, the second coupling unit being coupled to the first coupling unit such that a surface of the second coupling unit, which faces the inside of the pipe, forms a new inner wall of the pipe.

Description

Piping internal repair device

The present invention relates to a piping internal repair device capable of forming a flow path inside a piping damaged by corrosion or damage by installing it as a separate support structure inside the piping.

When various pipes, such as sewer pipes or storm water pipes, are aged, or damaged by an earthquake or an external shock, additional repair work is required depending on the degree of damage.

In general, when the degree of damage to the pipe is slight, it is possible to repair the part by additionally applying mortar or concrete to the inner surface, but if the degree of damage is large or wide, the entire pipe must be replaced or repaired.

However, there are many situations in which it is practically difficult to replace the pipe, and accordingly, it is effective to repair the entire pipe with a repair material. Accordingly, if the internal damage of the pipe is severe, a method of repairing the interior of the pipe is required.

As a method of repairing a conventional pipe, a reinforcing bar or a frame is bent and installed inside the pipe, an additional resin plate is combined with the reinforcing bar to form a partition wall in a cylinder type, and then a repair material is filled between the resin plate and the inner surface of the pipe. Curing methods have been widely used.

In the case of repair materials, general cement or mortar is used, and the inside of the pipe can be repaired through curing.

However, in the case of this method, it is difficult for the reinforcing bar or frame, etc. to maintain a fixed bond with the resin plate, and when installed in an area where there are frequent shocks from earthquakes or outside, cracks occur in the cured repair material with vibration of the resin plate. There is.

When a crack occurs in the repair material, groundwater is flooded from the ground, and a problem occurs in that the resin plate or the like is detached from the frame.

In addition, even if a flow path is formed inside the pipe using a resin plate, fluid may penetrate into the repair material through the gap between the resin plates, thereby reducing the durability of the repair material and shortening the repair cycle.

In this way, the conventional repair device for piping was performed by repairing the pipe by installing a resin plate on the inner surface of the pipe and filling the repair material therebetween, but maintaining the durability even if repaired due to the relatively weak coupling holding force of the resin plate. It is a difficult situation.

Therefore, a method for solving such problems is required.

The present invention is an invention devised to solve the above-mentioned problems of the prior art, and can effectively and quickly repair the inside of the pipe even if the internal damage of the pipe is severe, and repair the inside of the pipe so as to have robust durability after repair. It has an object to provide a device.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The internal piping repair apparatus of the present invention for achieving the above object is formed with a hollow inside to have a shape corresponding to the inner circumferential surface of the piping, and includes a plurality of first coupling protrusions protruding inside the piping , It is formed so as to contact at least a portion of the inner circumferential surface of the pipe, a plurality of structural units are installed spaced apart along the longitudinal direction of the pipe, a plurality of second coupling protrusions engaged with the first coupling protrusions, and the inside of the pipe A first coupling unit including a protruding first fixed coupling portion and a first passage forming portion, the first coupling unit being elongated along the longitudinal direction of the pipe and coupled across a plurality of structural units and the second coupling with the first fixed coupling portion It is coupled to the first coupling unit including a fixed coupling portion and a second passage forming portion coupled to the first passage forming portion to form a connection passage therein, and inside the pipe. The side facing in a second coupling unit formed in an inner wall of the new pipe.

In addition, the first coupling protrusion and the second coupling protrusion are formed to gradually increase in width toward the outside, and may be formed to mesh with each other.

In addition, it is formed in the longitudinal direction, both ends are connected to the structural unit spaced apart along the longitudinal direction of the pipe may further include a connection unit for maintaining the spacing between the structural units.

And the structural unit may include a coupling hole to which the connection unit is coupled.

In addition, the first fixing coupling portion includes a pair of first fixing protrusions facing each other, and the second fixing coupling portion may include a second fixing protrusion inserted and fixed between the pair of first fixing protrusions. .

In addition, the first fixed coupling portion further includes an auxiliary protrusion protruding between the pair of first fixed protrusions, and the second fixed protrusion is provided with a pair and inserted between the pair of first fixed protrusions, An insertion groove into which the auxiliary protrusion is inserted may be formed between the pair of second fixing protrusions.

In addition, the second passage forming portion may extend long in the direction of the first passage forming portion, and may include a pair of passage forming protrusions spaced apart from each other to form the connecting passage between them.

In addition, an engaging groove is formed in the passage forming protrusion, and the first passage forming part may include an engaging protrusion engaged with the engaging groove.

In addition, the first passage forming portion may be recessed toward the structural unit, and may include a recessed groove into which the pair of passage forming protrusions are inserted.

In addition, a plurality of the first coupling units may be provided to be interconnected along the inner circumference of the structural unit.

In addition, a first connection portion coupled to the other end of another adjacent first coupling unit is formed at one end of the first coupling unit, and the other end of the first coupling unit is coupled to one end of another adjacent first coupling unit. A second connection can be formed.

In addition, the first connection portion may be formed in a protrusion shape protruding outwardly, and the second connection portion may be formed in a groove shape in which the first connection portion is inserted.

In addition, a plurality of the second coupling unit may be provided and may be formed to be interconnected along the inner circumference of the first coupling unit.

In addition, a contact portion in contact with another adjacent second coupling unit may be formed at one end and the other end of the second coupling unit.

In addition, the contact portion, a first extension portion extending in the direction of the first coupling unit, a second extension portion extending outward from an end of the first extension portion and an end portion of the second extension portion extending in an inner direction of the pipe It may include a third extension.

And it may further include a fixing unit for wrapping and fixing a pair of contacts in contact with each other of a pair of second coupling units adjacent to each other.

The piping internal repair apparatus of the present invention for solving the above problems has the following effects.

First, the present invention is formed along the inner circumference of the piping, including a structural unit spaced apart along the longitudinal direction of the piping, a first coupling unit and a second coupling unit coupled to the structural unit, partitioning the damaged area of the piping Therefore, there is an advantage in that the piping can be repaired by filling a separate filler.

Second, a wide connection passage is formed between the first coupling unit and the second coupling unit, and there is an advantage that various configurations such as pipes and optical cables can be accommodated therein.

Third, even if the internal damage of the pipe is severe, there is an advantage that the pipe interior can be repaired effectively and quickly.

Fourth, it can have solid durability even after repair, and has an advantage in that the inner circumferential surface of the newly formed pipe is formed flat without a step.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will become apparent to those skilled in the art from the description of the claims.

1 is a view showing a state in which a structural unit is installed inside a damaged pipe in a pipe internal repair apparatus according to an embodiment of the present invention;

FIG. 2 is a view showing a state in which a plurality of structural units of FIG. 1 are spaced apart along a longitudinal direction in a maintenance area of a pipe;

3 is a view showing a state of a structural unit in a piping internal repair apparatus according to an embodiment of the present invention;

4 is a view showing a state of the first coupling unit in the piping internal repair apparatus according to an embodiment of the present invention;

5 is a view showing a state in which the first coupling unit is coupled to the structural unit in the piping internal repair apparatus according to an embodiment of the present invention;

6 is a view showing a state of the second coupling unit in the piping internal repair apparatus according to an embodiment of the present invention;

7 is a view showing a state in which the second coupling unit is coupled to the first coupling unit in the piping internal repair apparatus according to an embodiment of the present invention;

8 is a view showing a state in which a fixing unit is coupled to a pair of second coupling units adjacent to each other in a pipe internal repair apparatus according to an embodiment of the present invention;

9 is a view showing a state in which the filling material is injected between the inner surface of the pipe and the internal repair device according to an embodiment of the present invention; And

10 is a view showing a state in which the second coupling unit is coupled to the first coupling unit in the piping internal repair apparatus according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention, in which the object of the present invention can be specifically realized, will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same code are used for the same configuration, and additional description will be omitted.

The internal repair device for piping according to the present invention is a device for installing a separate structure on the inner surface of a corroded or damaged pipe (P) to form a flow path and filling and repairing a filling material (I) between the inner surface of the pipe (P) and the structure. Regarding, it will be described with reference to the accompanying Figures 1 to 10.

The piping internal repair apparatus according to an embodiment of the present invention may largely include a structural unit 100, a first coupling unit 200, a second coupling unit 300 and a fixing unit 400.

The structural unit 100 is a configuration that is first installed in the pipe (P), has a corresponding circumference according to the radius of the pipe (P), at least a portion is disposed in contact with the inner surface of the pipe (P).

In this embodiment, the pipe (P) is illustrated as having a circular cross-section, but this is not limited by this embodiment, and the internal piping repair device of the present invention is also provided in various types of pipes (P), such as polygonal or horseshoe-shaped. Of course it can be applied.

At this time, the structural unit 100 is configured to be capable of adjusting its length corresponding to the inner shape and perimeter of the pipe P as shown in FIG. 1.

In addition, the cross-sectional shape of the pipe (P) in the present invention is circular, corresponding to the structural unit 100 is configured to form a hollow (A) in the form of a ring, but unlike this, the cross-section of the pipe (P) Even if the shape is variously formed, such as a polygon or a horseshoe shape, the shape can be adjusted correspondingly.

In this embodiment, the structural unit 100 is formed in a ring shape and a hollow A is formed in the center, and has a predetermined thickness in some sections of the pipe P and is disposed along the circumference.

Specifically, the structural unit 100 is formed in a relatively smaller diameter than the inner circumference of the inner surface of the pipe (P) in consideration of the step difference or projection of the inner surface of the pipe (P) is stably the pipe (P) It is installed inside.

Of course, it may be preferable that the outer circumference of the structural unit 100 is configured to be close to the inner circumference of the pipe P, but the inner surface of the pipe P is relatively small since it does not already form an intact surface. It is preferably formed.

The structural unit 100 configured as described above, as shown in FIGS. 1 and 3, a plurality of first coupling protrusions 120 protruding toward the inside of the pipe P and at least a portion of the pipe so as to contact the inner circumferential surface of the pipe It includes a structure forming portion 110 is formed, as shown in Figure 2 may be installed spaced apart in the longitudinal direction of the pipe.

In the present embodiment, the structural unit 100 may be integrally formed and have a hollow A in the form of a closed curve, or alternatively, a plurality of unit members may be formed, and each of these may be connected to form a closed curve. It may be.

In the present embodiment, the unit member 110 is divided into a plurality of pieces along the circumferential direction of the structural unit 100, each of which is continuously connected by a separate fixing means (not shown), the material of which is steel or alloy, etc. High rigidity material of can be used. In addition, an additional surface treatment may be performed to improve durability.

As described above, the structural unit 100 includes a plurality of first coupling protrusions 120 protruding inside the pipe P, and the first coupling protrusions 120 are the structure forming unit 110 It may be provided spaced apart from each other at regular intervals along the longitudinal direction of. Accordingly, between the first coupling protrusions 120 adjacent to each other, a first coupling groove 102 into which the second coupling protrusions 220 of the first coupling unit 200 to be described later is inserted may be formed.

In particular, in the present embodiment, the first coupling protrusion 120 is formed to gradually increase in width toward the outside, and accordingly, when the second coupling protrusion 220 is inserted into the first coupling groove 102, the The first coupling protrusion 120 and the second coupling protrusion 220 may be engaged with each other to maintain a fixed state so that they are not stably separated.

In this way, the structural unit 100 is composed of a plurality of unit members so that the entire circumferential length can be easily adjusted, and when installed, it can be assembled outside the pipe (P) or directly inside the pipe (P).

Looking at the structural unit 100 in more detail, the structure forming unit 110 is disposed along the circumferential direction of the pipe P, and at least a portion of the pipe contacts the inner surface of the pipe P.

Here, the structure forming unit 110, as shown, a contact surface 140 is formed in a direction in contact with the pipe (P), so that the load acting on the inner surface of the pipe (P) is distributed.

If the structural forming unit 110 makes a point contact without making a surface contact with the inner surface of the pipe (P), additional damage to the inner surface of the pipe (P) due to the pressure of the structural unit 100 located at the bottom This can happen.

Accordingly, the structure forming unit 110 is configured to make surface contact with the inner surface of the pipe P by the contact surface 140, thereby preventing further damage of the pipe P.

In addition, the structure forming part 110 is formed so as to form a communication space (B) without partially contacting the inner surface of the pipe (P) so that the filler (I) is easily injected between the inner surface of the pipe (P) later You may.

The structural unit 100 configured as described above is formed in a ring shape and contacts the inner surface of the pipe P, and each of the structural units 100 is disposed spaced apart along the longitudinal direction of the pipe P.

At this time, the structural unit 100 is spaced apart along the longitudinal direction of the pipe (P), and at each point, the circumference may be adjusted in correspondence with the circumference of the inner surface of the pipe (P).

On the other hand, the connection unit 400 is disposed between the structural units 100 in the pipe P, and is composed of a plurality to support the structural unit 100.

Specifically, the connection unit 400 is formed to be elongated in the form of a frame such as a rod or pipe, and both ends are fixedly coupled to the structural unit 100 spaced apart from each other to support the structural unit 100.

That is, the connection unit 400 serves as a spacer to maintain a separation distance between the structural units 100 adjacent in the axial direction, and both ends protrude in the form of protrusions to form coupling holes formed in the structural unit 100 ( 112).

In this case, as shown in FIG. 2, a plurality of connection units 400 may be provided along the inner circumference of the pipe P between adjacent structural units 100.

In addition, although not shown in the drawings, the connection unit 400 may have a different length, or may be configured to be adjustable in length in the form of a pipe, and accordingly, the separation distance between the adjacent structural units 100 Regardless, they can be actively combined.

In this way, the connection unit 400 serves to support the structural unit 100 so that it can be installed in a state maintaining a predetermined interval on the inner surface of the pipe P.

Additionally, when the pipe P is not formed in a straight line shape but has an inclination or a curve, the connection unit 400 corresponds to the degree of bending of the pipe P between adjacent structural units 100. It may be installed to be adjusted to have different lengths.

Next, the first coupling unit 200 shown in FIGS. 4 and 5 is a component that is formed to be coupled to the inside of the structural unit 100, in particular, elongated along the longitudinal direction of the pipe (P) It can be combined across a plurality of structural units (100).

In addition, in this embodiment, the first coupling unit 200 is divided into a plurality of members, and is supposed to be formed to be interconnected along the inner circumference of the structural unit 100, and the number of the first coupling unit 200 May be appropriately provided according to the site situation, such as the diameter of the pipe (P).

Accordingly, a first connection unit 250a coupled to the other end of another adjacent first coupling unit 200 is formed at one end of the first coupling unit 200, and the other end of the first coupling unit 200 is formed. The second connection unit 250b coupled to one end of the other adjacent first coupling unit 200 has a form.

In particular, in the present embodiment, the first connection portion 250a is formed in a protruding shape protruding outward, and the second connection portion 250b is formed in a groove shape into which the first connection portion 250a is inserted, so that the first connection portion 250a is formed. The connection unit 250a may be connected to the first coupling unit 200 in a manner that is inserted into the second connection unit 250b of the other first coupling unit 200.

In addition, the first coupling unit 200 protrudes from the first base portion 210 and the first base portion 210 toward the structural unit 100 and meshes with the first coupling protrusion 120. It includes a plurality of second engaging projection 220.

The second coupling protrusions 220 may also be provided spaced apart from each other at regular intervals along the longitudinal direction of the first base part 210, similarly to the first coupling protrusions 120 described above. Accordingly, a second coupling groove 212 into which the first coupling protrusion 120 of the structural unit 100 is inserted may be formed between the second coupling protrusions 220 adjacent to each other.

In particular, in the present embodiment, the second coupling protrusion 220 is formed to gradually increase in width toward the outside, and accordingly, as shown in FIG. 5, the first coupling protrusion 120 is the second coupling groove 212 ), The first coupling protrusion 120 and the second coupling protrusion 220 are meshed with each other to maintain a fixed state so that they are not stably separated.

In addition, the first coupling unit 200 may include a first fixed coupling portion 230 and a first passage forming portion 240 protruding from the first base portion 210 to the inside of the pipe.

The first fixed coupling portion 230 is connected to the second fixed coupling portion 330 of the second coupling unit 300 to be described later (see FIG. 6), the first coupling unit 200 and the second coupling unit ( 300), and the first passage forming part 240 is connected to the second passage forming part 340 of the second coupling unit 300 (refer to FIG. 6) and therein a connection passage (S, FIG. 7). Reference). Various configurations such as an optical cable and a pipe may be accommodated in the connection passage S.

In this embodiment, the first fixed coupling portion 230 includes a pair of first fixing protrusions 232 facing each other, and the first fixing protrusion 232 is piped from the first base portion 210 (P) The first fixed protrusion 232a protruding inward and a first hook part 232b which is bent at the end of the first fixed protrusion 232a to form a hook shape.

In addition, the first fixed coupling portion 230 may further include an auxiliary protrusion 234 protruding between the pair of first fixed protrusions 232.

These are components for stable coupling with the second fixed coupling portion 330 (see FIG. 6), which will be described in the second coupling unit 300.

On the other hand, when the first fixed coupling portion 230 is in contact with the second fixed coupling portion 330, an expansion member R may be provided.

The expansion member (R) is made of a rubber or synthetic resin having elasticity or a water-expandable material expandable by moisture, so that it expands after the first and

second coupling portions

230 and 330 are combined. By doing so, it is possible to obtain a larger bonding force and to maximize water tightness.

In this embodiment, although the expansion member R is shown as being formed on the first fixed coupling part 230, the expansion member R may be selectively provided on the contact surfaces of all coupling structures shown in this embodiment. Yes, of course.

In addition, the first passage forming part 240 includes a pair of locking protrusions 242 facing each other, and the locking protrusion 242 protrudes from the first base portion 210 to the inside of the pipe P. It has a form including a hooking protrusion 242a and a hooking hook 242b that is bent at an end of the hooking protrusion 242a to form a hook.

At this time, the height of the locking protrusion 242 may be formed lower than the height of the first fixing protrusion 232.

Next, the second coupling unit 300 illustrated in FIGS. 6 and 7 is a component that is formed to be coupled to the inside of the first coupling unit 200, and is similar to the first coupling unit 200. It is formed long along the longitudinal direction of the pipe (P) can be coupled across a plurality of structural units (100).

In addition, in the present embodiment, the second coupling unit 300 is divided into a plurality of members, and is supposed to be formed to be interconnected along the inner circumference of the first coupling unit 200, and the second coupling unit 300 The number of pipes may be appropriately provided according to the site situation, such as the diameter of the pipe (P).

Accordingly, a contact portion 350 in contact with another adjacent second coupling unit 300 may be formed at one end and the other end of the second coupling unit 300. The contact portion 350 will be described later.

In this embodiment, the second coupling unit 300 includes a second base portion 310, a second fixed coupling portion 330 coupled with the first fixed coupling portion 230, and the first passage formation. It includes a second passage forming portion 340 coupled to the portion 240 to form a connection passage (S) therein.

In particular, the second fixed coupling part 330 may include a second fixed protrusion 332 which is inserted into and fixed between a pair of first fixed protrusions 232 formed in the first fixed coupling part 230, , The second fixing protrusion 332 is the second fixing protrusion 332a protruding from the second base portion 310 toward the first coupling unit 200, and the end of the second fixing protrusion 332a It has a shape including a second hook portion 332b that is bent in to form a hook shape.

Accordingly, as illustrated in FIG. 7, the second fixing protrusion 332 is interposed between the pair of first fixing protrusions 232 through the first hook portion 232b and the second hook portion 332b. It can be inserted and fixed in a hanging form, and the coupling of the first coupling unit 200 and the second coupling unit 300 can be made.

At this time, the second base portion 310, the surface facing the inside of the pipe to form a new inner wall of the pipe.

Meanwhile, between the pair of second fixing protrusions 332, an insertion groove into which the auxiliary protrusion 234 of the above-described first coupling unit 200 is inserted may be formed, and accordingly, the coupling fixing force may be further improved. have.

In addition, the second passage forming portion 340 extends in the direction of the first passage forming portion 240 and is spaced apart from each other to form a pair of passage forming protrusions 342 that form the connecting passage S therebetween. It can contain.

In this embodiment, the passage forming protrusion 342 includes a first passage extending part 342a extending from the second base part 310 toward the first coupling unit 200 and the passage extending part 342a. It includes a second passage extending portion (342b) formed at the end of the first passage extending portion (342a) and the second passage extending portion (342b) of the above described first passage forming portion 240 of the A locking groove 343 to which the locking protrusion 242 is hooked is formed.

Accordingly, the first passage forming part 240 and the second passage forming part 230 are the first coupling unit 200 through the coupling between the locking protrusion 242 and the locking groove 343 as shown in FIG. ) And the second coupling unit 300 to assist in further improving the fastening force.

In this way, the present invention has a wide connection passage (S) between the first coupling unit 200 and the second coupling unit 300 by the first passage forming portion 240 and the second passage forming portion 230 It is formed, it is possible to accommodate a variety of configurations, such as an optical cable (C) therein.

On the other hand, as described above, at one end and the other end of the second coupling unit 300, a contact portion 350 in contact with another adjacent second coupling unit 300 may be formed.

In this embodiment, the contact portion 350 is a first extension portion 352 extending in the direction of the first coupling unit 200 from the second base portion 310, as shown in Figure 8, the first A second extension portion 353 extending outwardly from the end of the extension portion 352, and a third extension portion 354 extending inwardly from the end of the second extension portion 353 to the pipe P ) And the auxiliary hook 355 bent at the end of the third extension 354.

That is, the contact portion 350 may be formed to have a 'C' shape lying on the whole, and the second coupling units 300 adjacent to each other may be connected to the third extension portion 354 in contact with each other.

In this embodiment, a fixing unit 400 may be further provided to wrap and fix a pair of contact parts 350 that are in contact with each other of the pair of second coupling units 300 adjacent to each other.

The fixing unit 400 is formed in a shape corresponding to a space formed between a pair of contact portions 350 adjacent to each other. Specifically, the fixing unit 400 is between the first insertion portion 410 and the first extension portion 352 and the third extension portion 354 inserted between a pair of first extension portions 352. It includes a pair of second insertion portion 420, and a pair of third extension portions 352 and a pair of auxiliary contacts adjacent to each other between the pair of second insertion portions 420 A fastening groove 430 into which the hook 354 is inserted may be formed.

Accordingly, when the fixing unit 400 wraps and secures a pair of contact portions 350 that are in contact with each other of the pair of second coupling units 300 adjacent to each other, the outer surface of the fixing unit 400 and the agent The outer surfaces of the second base portion 310 of the two coupling unit 300 may be formed to be flat with each other.

After the structural unit 100, the first coupling unit 200 and the second coupling unit 300 are installed inside the pipe P, as shown in FIG. 9, inside the pipe P A separate filler (I) can be filled in.

Specifically, the internal repair device for a pipe according to the present invention is installed in the order of the structural unit 100, the first coupling unit 200 and the second coupling unit 300 as described above, and the inner surface of the piping P It is arranged in the form of wrapping. Accordingly, a filling space may be formed between the inner surface of the pipe P and the inside repair device of the pipe.

In this embodiment, the filling space has a form divided by the structural unit 100 along the longitudinal direction of the pipe P, and by injecting the filling material I into the filling space in this form, the As the inside of the filling space is filled, the pipe internal repair device according to the present invention is fixed integrally with the pipe (P).

At this time, the filler (I) may be used a mortar, cement, a cement-based material such as concrete, or a curable material such as unsaturated polyester resin, epoxy resin.

And such a filling material (I) is injected from one side along the longitudinal direction of the area where the piping internal repair device according to the present invention is installed, and the injected filling material (I) is the communication space formed by the structural unit (100) B, see FIG. 1) may be injected into the space between the inner surface of the pipe (P) and the internal repair device of the pipe.

Meanwhile, the first coupling unit 200 and the second coupling unit 300 may be made of PVC, synthetic resin, thermoplastic resin, thermosetting resin, or the like, and may be formed to have a certain level of elasticity.

In addition, the coupling between the structural unit 100, the first coupling unit 200 and the second coupling unit 300 may be performed by various methods such as a pressing method or a sliding method.

As described above, the piping internal repair apparatus according to the present invention installs a structural unit 100 having a hollow (A) in a damaged area inside the piping (P), and the first coupling unit ( 200) and the second coupling unit 300 are coupled and supported together, and the inner surface of the pipe P can be repaired by filling the filler I between the inner surfaces of the pipe P.

In addition, the repaired pipe P and the internal repair device of the pipe are reinforced by a hardened filler (I), so that the strength of the pipe P is increased as well as the fluid flowing inside the pipe P. By flowing in contact with the second coupling unit 300 and the fixing unit 400, it is possible to prevent corrosion of the additional filler (I).

In addition, since the circumference of the structural unit 100 is adjusted according to the size of the inner surface of the pipe P, the space between the pipe P and the structural unit 100 is minimized to stably stabilize the structural unit 100. Of course, this can be fixed.

Meanwhile, FIG. 10 is a view showing a state in which the second coupling unit 300 is coupled to the first coupling unit 200 in the piping internal repair apparatus according to another embodiment of the present invention.

In another embodiment of the present invention shown in Figure 10, the first passage forming portion 260 of the first coupling unit 200 and the second passage forming portion 360 of the second coupling unit 200 The shape is formed differently from the above-described embodiment.

Specifically, in this embodiment, the first passage forming portion 260 includes a recessed groove 262 having a shape recessed toward the structural unit 100, and accordingly, the position of the first passage forming portion 260 The first coupling protrusion 120 of the structural unit 100 corresponding to may also include a recessed recess 122 recessed to correspond to the shape of the recessed groove 262.

In addition, in the present embodiment, the second passage forming part 360 has a pair of passage forming protrusions 362, but the passage forming protrusion 362 of the present embodiment is formed to have a longer length to form the recessed groove 262. It has a form that is in contact with the bottom surface of the.

Accordingly, this embodiment can form a larger size of the connecting passage S, and it is possible to accommodate more various and more structures in the connecting passage S.

As described above, a preferred embodiment according to the present invention has been examined, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the embodiment described above has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments are to be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description and may be changed within the scope of the appended claims and their equivalents.

(Explanation of codes)

100: rescue unit

110: structure forming unit

120: first coupling protrusion

200: first coupling unit

210: first base

220: second coupling protrusion

230: first fixed coupling unit

240, 260: first passage forming unit

250a: first connection

250b: second connection

300: second coupling unit

310: second base portion

330: second fixed coupling unit

340, 360: second passage forming unit

350: contact

400: fixed unit

P: Piping

A: Hollow

B: Communication space

I: Filling material

Claims

A hollow is formed inside to have a shape corresponding to the circumference of the inner circumferential surface of the pipe, and includes a plurality of first coupling protrusions protruding toward the inside of the pipe, and at least a portion of the pipe is formed to contact the inner circumferential surface of the pipe, A plurality of structural units spaced apart and installed along the longitudinal direction;

A plurality of second coupling protrusions engaged with the first coupling protrusions, a first fixed coupling part and a first passage forming part protruding inside the pipe, and formed in a lengthwise direction along the length of the pipe to form a plurality of structures A first coupling unit coupled across the unit; And

It is coupled to the first coupling unit including a second fixed coupling portion coupled to the first fixed coupling portion and a second passage forming portion coupled to the first passage forming portion to form a connection passage therein, and the piping A second coupling unit whose inner side faces a new inner wall of the pipe;

Plumbing internal repair device comprising a.
The method of claim 1,

The first coupling protrusion and the second coupling protrusion is formed so that the width gradually increases toward the outside, the internal repair device for the pipe formed to be meshed with each other.
The method of claim 1,

It is formed elongated in the longitudinal direction, both ends are connected to the structural unit spaced apart along the longitudinal direction of the pipe further comprises a connecting unit for maintaining a gap between the structural units.
According to claim 3,

The structural unit is a pipe inner repair device including a coupling hole to which the connection unit is coupled.
The method of claim 1,

The first fixing coupling portion includes a pair of first fixing protrusions facing each other, and the second fixing coupling portion is inserted into and fixed between the pair of first fixing protrusions and fixed inside the pipe including a second fixing protrusion Device.
The method of claim 5,

The first fixed coupling portion further includes an auxiliary protrusion protruding between the pair of first fixed protrusions,

The second fixing protrusion is provided with a pair and is inserted between the pair of first fixing protrusions, between the pair of second fixing protrusions is formed inside the insertion groove into which the auxiliary projection is inserted into the pipe repair device.
The method of claim 1,

The second passage forming portion is elongated in the direction of the first passage forming portion, spaced apart from each other and includes a pair of passage forming projections to form the connecting passage therebetween.
The method of claim 7,

A catching groove is formed in the passage forming protrusion,

The first passage forming unit is a pipe internal repair device including a locking projection that is engaged with the engaging groove.
The method of claim 7,

The first passage forming unit is recessed toward the structural unit, the pipe inner repair apparatus including a recessed groove into which the pair of passage forming protrusions are inserted.
The method of claim 1,

The first coupling unit,

The inside repairing device for a pipe provided with a plurality and formed to be interconnected along the inner circumference of the structural unit.
The method of claim 10,

A first connection unit coupled to the other end of another adjacent first coupling unit is formed at one end of the first coupling unit, and a first connection unit coupled to one end of another adjacent first coupling unit is formed at the other end of the first coupling unit. 2 Internal repair device for piping with connection.
The method of claim 11,

The first connection portion is formed in the form of a protrusion protruding outward,

The second connection portion is a pipe internal repair device formed in the form of a groove into which the first connection portion is inserted.
The method of claim 1,

The second coupling unit,

A pipe internal repair device provided with a plurality and formed to be interconnected along the inner circumference of the first coupling unit.
The method of claim 13,

The inside of the pipe repairing device is formed at one end and the other end of the second coupling unit to be in contact with another adjacent second coupling unit.
The method of claim 14,

The contact portion,

A first extension portion extending in the direction of the first coupling unit;

A second extension portion extending outward from an end of the first extension portion; And

A third extension portion extending from an end of the second extension portion in an inner direction of the pipe;

Plumbing internal repair device comprising a.
The method of claim 14,

A piping internal repair device further comprising a fixing unit that wraps and secures a pair of contact portions in contact with each other of a pair of second coupling units adjacent to each other.