JP3450815B2 - Method for repairing drainage pipes and equipment used therefor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a drainage mounting pipe connected continuously from a sewage basin or rainwater basin of a factory or a household to the ground, and a repairing device used for the method. When a crack or damage occurs in an existing buried drainage installation pipe connected to a sewer main from a sewage basin or rainwater sluice installed in a factory or a house, it is a non-opening repair material layer on the inner surface of the installation pipe without digging. Relates to a technique of rehabilitating a mounting pipe by tensioning.

[0002]

2. Description of the Related Art An in-house stub, that is, a sewage basin is installed in each household, and a drainage mounting pipe buried in the ground is connected from the sewage basin to the sewer main of the road underside. The pipe will be deteriorated due to aging, external load, or damage or breakage of the seam will occur due to an earthquake, etc., which will cause the inflow of groundwater and earth and sand, or the outflow of sewage into the ground. Repairs and renovations are required.

[0003] The conventional most common method for repairing and reconstructing a drainage mounting pipe connected to a sewer main from an in-house basin is the mounting that is buried even if the mounting pipe is only leaking water due to cracks or the like. This is an excavation method in which a pipe is dug out, the existing mounting pipe is removed, and a new mounting pipe is installed and buried. However, this method of excavation in urban areas is unfavorable from the aspect of the living environment, such as the fact that the road is dug back, which adversely affects traffic conditions and affects neighboring residents. Therefore, in recent years, a non-open cutting method, which is an alternative to the open cutting method, has been developed and put into practical use.

As a non-excavation method, IPC (Inver
There is a reversal method such as the sion chemical pipe) leasing method and the LIP (Lateral in Pipe) method. The IPC bleeding method involves inserting the synthetic resin impregnated repair material by inverting from the main pipe side to the mounting pipe side with compressed air to repair hot water. It is a method of filling and injecting into the material to cure the repair material. In the LIP method, the end of the repair material is attached on the sewage pit side of the house, and the repair material is inverted and inserted into the existing mounting pipe by compressed air to repair the repair material. After curing, the parts protruding into the main pipe and the waste water basin are cut and removed.

That is, in the LIP method, as shown in FIGS. 12 and 13, a synthetic resin-impregnated repair material whose base end is fixed on the sewage basin side is transferred from the compressor to the main pipe from the sewage basin by a reverse curing device on the ground. The repair material itself is expanded by compressed air pressure while being reversed and inserted, and the position where the reversal is completed (Fig.
In (A)), the repair material is cured by the UV lamp in the repair material to form a pressure-hardened repair material layer on the inner surface of the existing mounting pipe, and then the TV camera in the main pipe shows the protruding state of the repair material into the main pipe. The projecting portion of the repairing material is cut by a cutting machine in the main pipe while monitoring (FIG. 13 (B)), and the repairing material projecting portion on the sewage basin side is visually cut and removed.

The present inventor has also proposed a new construction method for repairing a drainage mounting pipe, which is completely different from the IPC bleed construction method and the LIP construction method, in Japanese Patent Application No. 2000-32945 (Japanese Patent Laid-Open No. 2000-1585).
No. 36). That is, the proposed invention is shown in FIG.
The repair material having substantially the same diameter and length as the repair target mounting pipe P ₁ impregnated with the curable synthetic resin liquid is manually inserted in advance into the drainage mounting pipe to be repaired by using an insertion rod. Moved the reversing device to the work site where the reversing rubber was arranged so that it reverses and protrudes from the tip of the tip guide by air pressure.
Bring the tip of the tip guide close to the mounting pipe port, and then
Attach the base end of the repair material that has already been inserted and installed in the mounting pipe to the tip of the tip guide with a fastening band, and inflate and insert only the reversal rubber into the already-arranged repair material by the pneumatic action from the reversing machine. The reverse pressure rubber expands and presses against the inner peripheral surface of the mounting tube to cure it.

[0007]

The excavation method is not preferable not only in terms of construction period and cost, but also because of traffic blockage on the road, living environment problems of neighboring residents, etc., and is devised to solve the problems of the excavation method. Although the non-open cutting reversal method is effective in improving the road traffic blocking problem and the living environment problem, it requires a large amount of equipment such as a large reversing curing device and auxiliary devices. Since it is not possible to move from the construction site until the completion of construction, that is, the reversing device needs to continue operating even during the curing process that requires a long time after the reversing work is completed, and it cannot move until the curing is completed, which causes a problem in the operation rate of the device. Yes, it is expensive and not economical. Moreover, since the repair material hardens in the state where high pressure air is directly applied to the inner peripheral surface, wrinkles and folds generated during reversal insertion are hardened as it is, and the rehabilitation mounting pipe is inferior in performance as a running water channel. Was becoming.

Further, in the newly proposed construction method of FIG. 14, although it is a non-excavation construction method, it can be economically constructed with a small amount of equipment and using rational materials. There are straight type, curved type, right angle curved type, etc., and when inserting the repairing material into the mounting pipe with the insertion rod as a folded reduced diameter form, the straight type or curved type pipe , It can be inserted into the repair material without bending or overlapping, and the inner surface of the inserted repair material cures under the pressure of inverted rubber, so the inner surface of the repair material is a smooth surface without running water resistance. Although ideal repair work is possible, in the case of a mounting pipe with a bent shape of 60 ° or more, especially a bent shape close to a right angle, manual work with an insertion rod to properly arrange the repair material in the mounting pipe Is very difficult and time consuming It is a work to do, and even if the repair material that has large curved wrinkles in the curved portion is expanded from the inner peripheral surface to the inner peripheral surface of the mounting pipe by expansion of the reversal rubber and hardened by pressing, the wrinkle shape can not be completely crushed In some cases, wrinkles may be formed on the inner surface of the attachment pipe covered with the repair material layer, which is inconvenient as a flow path.

[0009]

Means and Actions for Solving the Problem For example, as shown in FIG. 11, a cylindrical repair material 5 impregnated with a synthetic resin and a cylindrical reversal rubber 4 are provided, and a tip 5 _T of the repair material 5 is reversed rubber. Within 4
The reversal rubber 4 and the connecting cord 12 are linked to each other and mounted on the reversal guide 2, and the action of the high-pressure fluid A on the reversal rubber 4 causes the reversal rubber 4 and the repair material 5 to flow from the reversal guide 2 into the drainage mounting pipe P ₁ . Moreover, the repair material 5 is invertedly inserted so as to be on the outside of the reversal rubber 4, and the impregnated synthetic resin is cured while the repair material 5 is pressed against the inner peripheral surface of the mounting pipe P ₁ by the expansion pressure of the reversal rubber 4. After the repair material 5 is cured, the reverse rubber is pulled out and the reverse guide 2 and the repair material 5 are separated to repair the drainage mounting pipe (claim 1). Tip 5 _T of repair material 5 may be performed if stopped in inverted rubber temporary fixing of the degree of departure when pulling out the inversion rubber 4. The "mounting pipe P ₁ " referred to here is, for example, a mounting pipe connected from the in-home basin to the sewer main, a drainage mounting pipe connected from the rainwater basin at home or a factory to the sewer main, and wastewater treatment at the factory. "Reversal rubber" means a wide range of underground mounting pipes, such as a mounting pipe for drainage from a basin, which is connected to a drainage main (sewer main) installed underground on the surface of the ground (basin). Means a wide range of sheet materials having rubber elasticity such as synthetic rubber and natural rubber, and "synthetic resin" means a wide range of synthetic resins that are light-curable, heat-curable, and naturally-cured (cured over time). Yes, "fluid"
Means air, heat or water or gas at normal temperature, and the "repair material" is poor in dimensional stability as used in the conventional LIP method and the like, that is, slightly expanded or expanded. It is a fiber material or the like having longness.

Therefore, since the repair material 5 is inserted together with the reverse rubber 4 which is subjected to the high-pressure fluid action from the reverse guide 2 into the mounting pipe P ₁ , the repair material 5 is repaired at all places where the reverse rubber 4 can be inserted reversely. It is also possible to reverse the insertion of the mounting pipe P ₁
It is possible to insert and arrange the repair material into the mounting pipe P ₁ even if the curve is curved or bent. Furthermore, since the repair material 5 having poor dimensional stability is reversed to the outside of the reversal rubber, the reversal insertion portion of the repair material is sequentially pressed by the expansion pressure of the reversal rubber 4 against the inner peripheral surface of the mounting pipe P ₁ . The wrinkles of the repair material at the bent portion of the mounting pipe P ₁ are minimized, and even a small amount of wrinkles are brought into contact with the reversal rubber 4 of the repair material 5 by pressurization of the reversal rubber 4. Is a smooth surface that does not hinder the flow path. Further, the reversing guide 2 is used for the reversing insertion work of the repair material 5.
Since the tip can be placed close to the inlet of the mounting pipe P ₁ , the required length of the repair material 5 is almost the same as the length of the mounting pipe P _{1 to be} repaired, and repair such as the conventional reverse hardening method (LIP method) is performed. Long cutting and discarding parts at the tip and base of the material do not occur, and the use of materials such as repair materials and synthetic resins can be rationalized. Furthermore, the tip 5 _T of the repair material 5 is connected to the reverse rubber 4 and the connecting cord 1.
Since the arrangement is linked by 2, inside the reversal rubber 4 of the repair material 5
It is easy to insert into the repair material 5 , and the preparatory work for reversing insertion of the repair material 5 can be performed on the ground away from the repair target mounting pipe P _1.
Therefore , construction preparation work can be rationalized.

Further, the base end 5 _E of the repair material 5 is attached to the inversion guide 2
Fastened to the tip 2 _T periphery of the inverted rubber 4 repairing material tip 5 _T
Connected to the inverting rubber tip 4 _T by connecting straps 12 retracted within, connect the inverted rubber tip 4 _T in reversing the rope 11 which is unwound from the winding core 13 of the reversing machine 1, the reverse guide 2 inverted rubber 4 It is preferable that the repair material 5 is inverted and extended to the outside of the inverted rubber by inversion extension into the drainage mounting pipe P ₁ (claim 2). In this case, connecting cord 12 and repair material tip 5 _T
The connection with can be carried out by a temporary fixing which is weak enough to be released by the pulling action of the reverse rubber 4.

Therefore, since the repair material base end 5 _E is fastened to the outer periphery of the tip 2 _T of the reversing guide 2, the reversing action of the repair material 5 from the reversing guide tip 2 _T becomes smooth, and the reversing guide tip 2 By constructing _T close to the mouth of the mounting pipe P ₁ , the discard length of the repair material 5 after repair can be reduced to the limit and rational use of materials can be achieved. Furthermore, since the connecting cord 12 exists between the repair material tip 5 _T and the inversion rubber tip 4 _T , the insertion of the repair material 5 into the inversion rubber 4 is facilitated by pulling the connection cord 12 and The reversal rubber 4 can be reversibly inserted beyond the repair material tip 5 _T even after reversing the entire length of the repair material 5 into the mounting pipe P ₁ , and the repair material 5 is pressed by covering the entire length of the repair material 5. Full length mounting pipe P ₁
The pressure hardening of the inner peripheral surface can be performed uniformly.

Further, it is preferable that the repair material (5) includes at least three layers of a synthetic resin-impregnated cloth material 51, an outer sheet 52, and an inner sheet 53, which are in the form of a free layer. 3). If the cloth material, the outer sheet, and the inner sheet are in a free form, the work of impregnating and injecting the synthetic resin liquid into the repair material 5 is easy, and the adaptability of contact of the repair material 5 to the inner peripheral surface of the mounting pipe P ₁ is high. Also, the inner peripheral surface sheet after curing (the outer sheet is reversed) can be easily peeled off. The cloth material 51 has a thickness that allows the synthetic resin to be easily impregnated and held, and has a poor shape retention property, that is, a single layer or a plurality of layers such as a woven cloth or a nonwoven cloth whose diameter and length are easily changed (longitudinal and lateral changes). preferably the layer, and as the sheets of the inner and outer layers may be Kanade a function of holding the synthetic resin solution, but the inner sheet in contact with the _first inner circumferential surface installation pipe P by reversing effect repair after mounting pipe P ₁ Since it remains between the inner peripheral surface and the repair material 5, it is preferable that it exhibits the function of closing the leakage of water from the mounting pipe P _1. If a rubber sheet is applied, a small vibration stress to the repair material due to a small earthquake etc. This is preferable because it can be expected to have a function of appropriately absorbing and protecting the repair mounting pipe P ₁ . Also, the outer sheet 52 is
Since it becomes the inside of the repair material 5 by reversing, it is preferable that the reversing rubber 4 can be peeled off and broken when the repair is performed. Typically, both the outer sheet and the inner sheet are thin and water-impermeable synthetic resin films suitable for construction.

Further, it is preferable that the outer sheet 52 of the repair material 5 is provided with an extending portion 52 _T at the tip (Claim 4).
In this case, only the extending portion 52 _T of the outer sheet is connected to the connecting cord 12
The repair material tip 5 _T can be connected to the reversal rubber tip 4 _T by fixing it to the outer sheet 52 existing on the inner surface of the cured repair material 5 with a small tension by the pulling action of the reversal rubber 4 after the repair material 5 is cured. It can be peeled and removed cleanly from the repair material 5 by force, and therefore the presence of the extending portion 52 _T facilitates temporary fixing and separation of the repair material 5 from the reversal rubber 4.

Further, the reverse rubber base end 4 _E and the repair material base end 5
_E vacuum-tight manner and held against both reversing guide 2, to reverse inserts repairing material 5 in inverted rubber 4 while applying a pressure of the high pressure fluid a to the leading portion 5 _L during inverted repair material 5 Is preferred (Claim 5). When the repair material 5 is inverted and inserted by the reversal rubber 4 with the tip 5 _T hung, there is a risk that the repair material 5 may be wrinkled due to the right angle of bending of the inner surface of the mounting pipe, small friction projections, etc. as shown in, when the inverted insertion while applying a pressure of the high pressure fluid a to the inverting lead portion 5 _L of repair material 5, the repairing material 5 itself inverted rubber Similarly, the attachment tube P
_It can be smoothly and sequentially inserted in an expanded form irrespective of the corners and small projections in ₁ , so that the repair material 5 can be inverted and inserted in the mounting interval P ₁ without generating wrinkles, and in the end, the inner circumference of the mounting pipe P ₁ It is possible to repair the inner surface of the mounting tube regardless of the surface shape.

Further, a valve V for blocking the flow path is arranged in the flow path of the reversing guide 2 for supplying the high-pressure fluid A from the reversing machine 1 to the reversing rubber 4, and the reversing rubber 4 reversely inserts the entire length of the repair material 5. It is preferable that the valve V shuts off the flow path of the reversing guide 2 at the stage of press-contacting and pressurizing the inner peripheral surface of the mounting pipe P ₁ to maintain the high-pressure expansion state of the reversing rubber 4 to cure the repair material 5 (claim) Item 6).

In this case, the reversing machine 1 does not need to be operated for applying pressure during the passage blocking operation of the valve V, and therefore the curing work of the repair material 5 which takes a relatively long time (natural curing:
85 to 115 minutes), the reversing machine 1 can be stopped and the operating energy of the reversing machine can be saved by the valve action, and the reversing machine can be prepared for the next work or the curing work. It is also possible to disconnect the reversing machine from the reversing guide 2 inside and move it to the next site for operation, so that the operating rate of the reversing machine, which requires equipment costs, can be improved, and the economy of drainage mounting pipe P ₁ repair work can be achieved. This makes it possible to perform a reasonable and rational construction.

Further, the rubber cylinder 25 provided with the valve V in the flow path of the reversing guide 2 and the pressure contact means 33, 3 for the rubber cylinder 25.
4, 35 are preferably included (Claim 7). In this case, the valve V can be closed simply by pressing the rubber tube 25 from both sides, so that, for example, as shown in FIG. 8B, the pressing plate 35 is attached to the tip of the advancing / retreating screw rod 34.
It can be easily implemented with a simple valve opening / closing means attached.
Moreover, the airtight mounting of the rubber tube 25 as a consumable item
It is possible only by air-tightly tightening the band on the opposite guide ends on both sides which are separated for valve mounting.
Can be easily replaced. Note that the valve V detects the pressure downstream of the valve V (pressure sustaining) is provided a pressure gauge M and regulating valve V _0, when the down pressure occurs, the pressure fluid from the control valve V ₀ By adding a conventional means in a pressure device for replenishing the valve, it is possible to employ a slightly rough valve V which causes a slight pressure leak, which is advantageous from the viewpoint of valve manufacturing and work implementation.

The apparatus used for carrying out the invention of the repair method of the present application is provided with a winding core 13 inside and a supply mouthpiece 18 on the surface.
A reversing guide 2 is connected to a connection port 19 of a reversing machine 1, and a valve V for blocking a flow path is arranged at the base of the reversing guide 2, and a base end is provided at a first mounting position F ₁ in the middle of the reversing guide 2. 4 _E of airtightly attached cylindrical reversal rubber 4 with tip 4 _T of core 4
It connects to the reversing rope 11 which is locked to 3, and the repair material base end 5 _E can be attached to the second mounting position F ₂ of the reversing guide tip 2 _T , and the inside of the reversing rubber 4 extends backward from the reversing rubber tip 4 _T. the repair material tip 5 _T by the cord 12 out is obtained by a lockable (claim 8).

According to this device, the repair material 5 can be installed in the work.
There is a tip of inverted rubber 4_TConnection string extending backward from
12 and repair material tip 5_TInverted rubber because and are connected
4 and the repair material 5 are turned forward by the winding core 13 of the turning rope 11
It can be determined by the amount of rewinding from the reverse guide 2 and reverse rubber
The high pressure fluid A is supplied to the inside of 4 by the attached compressor.
(Not shown) is fed into the supply base 18 of the reversing machine.
Supply of high-pressure fluid A into the reversing machine 1
Rewinding the reversing rope 11 gradually and continuously according to the amount
Therefore, the reversal rubber 4 with the repair material 5 sandwiched inside is
With the continuous supply of high-pressure fluid A, its proximal end 4 is gradually increased._ESide
Expansion and reversal advance in the reversing guide, and the reversing guide tip 2_T
Pipe for reverse relocation from₁Swelling within the diameter, repair material 5
Mounting pipe P ₁Expands while sequentially reversing and contacting the inner peripheral surface of
The reversal can be continued.

Therefore, the repair material 5 is the tip 2 _{T of} the inversion guide.
The material can be saved by being close to the repair place, and since the reversal advance is adapted to the reversal advance of the reversal rubber 4, it is not affected by the unevenness or the bending of the inner peripheral surface of the mounting pipe P _1. Since the tip 5 _T can be inverted and inserted, and the tip 5 _T is connected to the tip 4 _T of the inverted rubber via the connecting cord 12, the total length of the repair material 5 can be inverted even after the reverse insertion is completed in the mounting pipe P ₁ . 4 by adjusting and advancing 4 beyond the tip 5 _T of the repair material within the range of the length of the connecting cord 12.
Stops rewinding the reversing rope while covering the entire length of the reversal-inserted repair material 5 and applying pressure to the inner peripheral surface of the mounting pipe P ₁ , and the reversal rubber 4 is inflated and pressed during the curing time of the repair material 5. When the above condition is maintained, the inner peripheral surface of the repair material 5 can be hardened in a uniform and smooth form over the entire length.

Then, in the work of pulling out the reversal rubber 4 after the repair material 5 is cured, the connecting string 12 is attached to the outer sheet 52 of the repair material 5.
If locks the engagement with the extending portion 52 _T, the outer sheet 52 occupies the inner peripheral surface of the repair material 5 by inversion curing be pulled out with inverted rubber 4 while easily peeled from the cured repair materials I can. Needless to say, the connection between the repair material tip 5 _T and the connecting string 12 can be performed without any problem as long as the temporary locking can withstand the pulling action of separating the outer sheet 52 from the inner surface of the cured repair material.

Further, the work of hardening the repair material 5 (85 to 115
At the same time as the start of (1), the flow path of the reversing guide 2 is blocked while the reversing rope 11 is sandwiched by the valve V, and the reversing machine 1 is released to release the locking between the reversing rope 11 and the winding core 13 and reversing. If the connection port 19 of the machine and the reversing guide 2 are separated, the reversing machine 1 can be moved to another work site and connected to a new prepared reversing guide to perform the reversing work. If this device is used, one set of the reversing machine 1 and the attached compressor, which requires equipment cost, is prepared, and a plurality of sets of the reversing guide 2 including the reversing rubber 4, the reversing rope 11 and the valve V, which have low equipment cost, are prepared. If this is done, the reversing machine set (reversing machine and compressor) can be moved to another site for operation even during the curing time of the repair material 5, the operation rate of the equipment can be improved, and the repair work cost of the drainage mounting pipe can be achieved. The cost can be reduced.

Further, in the apparatus of claim 8, the repair material base end 5 _E is airtightly attached to the second attachment position F ₂ , and
To place the pressurized fluid supply mouthpiece t ₀ between the first mounting position F ₁ of the reversing guide 2 and the second mounting position F ₂ is preferably (claim 9). In this case, as shown in FIG. 11, the ferrule t is prior to (or at the same time as) starting the reversal of the reversal rubber 4.
By supplying the high pressure fluid a from the tube t to the ₀ , the high pressure fluid a is provided between the inner surface of the tip guide piece 24 and the outer surface of the repair material 5.
Is filled, the reversing rubber 4 and the repair material 5 are continuously reversed and advanced from the tip guide 24, and the leading portion 5 _L of the repair material 5 is fluid a.
Therefore, the repair material 5 can be smoothly reversed and inserted without being caught or folded, regardless of the inner surface of the mounting pipe P ₁ ,
It is possible to repair and rehabilitate the drainage mounting pipe P ₁ of any arrangement with a repair material.

Further, the reversing guide 2 includes a plurality of shape-retaining proximal end side guide pieces 21, 22, 23 and a distal end guide piece 24, and a flexible guide piece 2 for intermediate connection.
It preferably contains 0 (claim 10). The flexible guide piece 20 is preferably a pipe that can be prevented from being deformed in diameter and can be bent and deformed, and a sunny pipe (trade name) or the like can be used. If the reversing guide 2 can be divided into a plurality of pieces and detachable, it is advantageous for carrying the reversing guide 2 and mounting it on the reversing machine 1, and the intermediate guide of the flexible guide piece 20 that bends and deforms the tip guide at the work site. The piece 24 can be easily aligned with the inlet of the mounting pipe P ₁ , and since one flexible guide piece 20 can cope with a change in the distance, a small number of long and short pieces are prepared. By doing so, it is possible to deal with dimensional changes between the installation position of the reversing machine and the inlet of the mounting pipe P ₁ for each construction site. Further, the work of mounting the reversing rubber 4 and the repair material 5 on the reversing guide 2 and the work of connecting the reversing machine core 13 to the reversing machine core 13 can be facilitated by appropriately separating the reversing guide, and reversing the repair material 5 necessary for each construction. Easy mounting on the guide 2,
And alignment facilitation of reversing guide tip 2 _T is very effective in efficiency of construction.

In the reversing guide 2, the reversing rubber base end 4
The first mounting position F ₁ for holding _E is the hollow mounting member 10 held at the tip of the elastic pipe 9 that is airtightly fixed in the reversing guide 2, and the reversing rubber base end 4 _E is mounted. It is preferable that the outer periphery of the tip of the member 10 is airtightly fastened (claim 11). The elastic pipe 9 is typically a rubber pipe having a smaller elongation than the reversal rubber 4, and may have a size and shape that can be accommodated in the flexible guide piece 20 with the mounting member 10 fixed to the tip. Since the reversal rubber 4 is a consumable member that is subjected to severe repetitive actions, it needs to be replaced and needs to be airtightly attached to the reversal guide 2, but the mounting hardware 10 is displaced by the elastic pipe 9. Since it is possible, airtight installation and removal work of the inverted rubber base end 4 _{E from} the outer periphery of the attachment member becomes easy, and since the elastic pipe 9 also has rubber elasticity, airtight attachment to the inversion guide 2 is easy. Is.

Further, the reversing guide 2 has a tip guide piece 24.
And the third guide piece 23 on the base end side are connected by a detachable flexible guide piece 20, and the elastic pipe 9 having the mounting member 10 fixed at the tip is inserted into the flexible guide piece 20 from the third guide piece 23 side. It is preferable that the structure is extendedly arranged (claim 12). In this case, the tip end guide piece 24 that requires the repair material 5 to be attached for each construction work, and the attachment of the flexible guide piece 20 that needs to be replaced according to the distance from the ground at the construction site to the mouth of the installation pipe P ₁ The removal can be performed without affecting the reversal rubber 4, and the construction preparation work becomes easy. Moreover, since the mounting position F ₁ of the reverse rubber base end 4 _E extends from the third guide piece 23 to shorten the distance from the repair material base end mounting position F ₂ , the front end of the reverse rubber 4 during the reversing work is forwarded. The length of the repair material drooping or leading from the tip can be shortened, the reversing and advancing action of the repair material by reversing and advancing the reversing rubber 4 can be rationally performed, and the elastic pipe 9 extended from the third guide piece 23 Also, since the bending displacement of the flexible guide piece 20 can be followed, the displacement action of the flexible guide piece 20 at the time of aligning the inversion guide tip 2 _T is not hindered.

The reversing guide 2 has a third guide piece 23.
Clamping means C at the lower end₁Through the hollow first connecting pipe 7
Removably connected and clamped at the upper end of the tip guide piece 24.
Step C ₂Removably connect the hollow second connecting pipe 8 via
Then, the flexible connecting piece 20 connects the first connecting pipe 7 and the second connecting pipe 8.
A detachably connected structure is preferred (claim 13). This
In the case of, the shape of the third guide piece 23 and the first contact
Attaching and detaching the connecting pipe 7 and the tip guide piece 24 and the second connecting pipe 8.
Clamping means C₁And C₂It is possible with one-touch operation of
The flexible guide piece 20 is also connected to the first connecting pipe 7 and the second connecting pipe 7 at both ends.
A band fastening means such as a screw band that can be attached to and detached from the connecting pipe 8.
Can be carried out easily, and therefore the replacement rubber 4 can be replaced and repaired.
A flexible gutter that must be always attached and detached for mounting the material 5 and corresponding to the construction site.
The id 20 can be easily attached and detached, and the reverse guide 2
Splitting and connection can be performed reasonably, and work preparation for the inversion guide 2
And the maintenance becomes easy.

The reversing guide 2 is a base of the elastic pipe 9.
Edge 9_ETo the first connecting pipe 7 with a stopper B_FiveTightens airtightly by
The upper end 20 of the flexible guide piece 20_TCover the elastic pipe 9
Stop B₂And air-tightly secure the lower end of the guide piece 20.
Stop B at the upper end of the second connecting pipe 8₃It is preferable to tighten it airtightly with
Good (Claim 14). Therefore, the reversing action on the reversing rubber 4
Supply the high-pressure fluid A from the reversing machine 1 for applying
Is the passage a space between the inner circumference of the reverse guide 2 and the outer circumference of the reverse rubber 4?
Form the space between the inner circumference of the elastic pipe 9 and the reverse rubber 4 easily
Leading part 5 of repair material 5_LThe high pressure fluid a to be applied to
It can be supplied between the outer circumference of the repair material 5 and the inner circumference of the reverse guide 2.
It In this case, the elastic pipe 9 is made of rubber elastic material (rubber cylinder).
Because there is a stop B such as a band _FiveAirtight tightening just by tightening
The flexible guide piece 20 can be fastened in an airtight manner.
Band stop B₂, B₃Can be performed easily with the elasticity
Base end 9 of pipe 9_EFlexible guide piece 2 on the airtight fastening
0 is attached and detached so that the flexible guide piece 20 can be removed at the work site.
The replacement work does not affect the installed reverse rubber 4.
Easy to implement.

In addition, the tip 4 of the reversal rubber in the reversal guide 2
_As a connection structure between the _T and the reversing rope 11 of the reversing machine, the reversal rubber tip 4 _T is airtightly provided on the outer periphery of the cylindrical tip fitting 40 including the face plate portion 41 having the central hole H ₀ provided with the screw 41 _S. The reverse rope 11 extending from the winding core 13 is fastened to the retaining ring 42 provided in the face plate portion 41, and the large diameter hole O ₂ and the small diameter at the center of the bottom portion are provided in the center hole H ₀ of the face plate portion 41. It is preferable that the hollow bolt 43 provided with the hole O ₁ is detachably screwed, and the closing bolt 44 is screwed to the large diameter hole O ₂ with the screw 43 _S (claim 15).

[0031] In this case, the air-tight fastening of the end bracket 40 the outer periphery of the inverted rubber tip 4 _T can be easily implemented in a band fastening, small-diameter hole for the connection cord 12 inserted from the repair material tip 5 _T The hollow bolt 43 having O ₁ can also be airtightly and easily closed by the closing bolt 44, and the fluid A can be prevented from flowing into the tip fitting 40. And the inversion rope 11
Is easily connected to the tip fitting 40 via the retaining ring 42, and the pressurized fluid A supplied from the reversing machine 1 is entirely between the inner peripheral surface of the reversing guide 2 and the outer peripheral surface of the reversing rubber 4. It becomes possible to supply to the space, and it becomes easy to replace and attach the reversing rubber 4 to the reversing guide 2 and to attach the repair material.

Further, attachment to repair material tip 5 _T in reversing guide 2 together with mounting the extending portion 52 _T of the outer sheet of repair material 5 to the connecting cord 12 proximal end, the distal end 12 _T of the connecting cord 12
Is preferably pulled out from the small diameter hole O ₁ of the hollow bolt 43 screwed to the tip metal fitting 40 to which the inverted rubber tip 4 _T is fastened, and fixed by the closing bolt 44 at the bottom of the large diameter hole O ₂ (claim 16). ). When the repair material 5 is pulled into the reversing guide 2 and the reversing advance is made, the reversing rubber 4 is sandwiched between the reversing rubber 4 and the reversing rubber 4.
Since the joint string 12 moves forward and backward together, no tensile stress acts on the connecting cord 12 itself during the reversing work, and therefore, the connecting between the cord 12 and the outer sheet extending portion 52 _T of the repair material can be performed with a thin cord or tape. The connection of the tip metal fitting 40 at the tip of the connecting string 12 is also the string 12.
It suffices to insert into the small-diameter hole O ₁ at the center of the hollow bolt 43 to form a knot and press it with the closing bolt 44 in the large-diameter hole O ₂ . Therefore, the complicated mounting work of the repair material tip 5 _T , which must be mounted for each construction work, to the reversal guide 2 can be carried out easily and reliably, which contributes to the improvement of construction efficiency.

[0033]

BEST MODE FOR CARRYING OUT THE INVENTION The case where the present invention is applied to a sewer installation pipe which is buried and connected to a sewer main from a domestic sewage pipe will be described in detail. When carrying out repair and rehabilitation of the sewer installation pipe P _{1 by} the repair method of the present invention, first check the construction site as a preliminary survey work and the obstacles with a TV camera, and then check the obstacles as a pretreatment work. After the removal of the objects is completed, as shown in FIG. 1, the reversing machine 1 and the reversing guide 2 connected to the reversing machine 1 and the reversing guide 2 by the reversing rope 11 for winding and rewinding by the reversing machine 1. Using a repair device including a reversing rubber 4 to be protruded and retracted from the reversing device and a conventional compressor for supplying the high-pressure fluid A to the reversing device 1, the repair material 5 selected and prepared based on a preliminary investigation is used for the reversing guide 2 of the device.
The repair material 5 is invertedly inserted into the repair target mounting pipe P ₁ by the reversing rubber 4, and the reversing rubber 4 achieves pressure hardening of the repair material 5 to the inner peripheral surface of the mounting pipe P ₁ to achieve the reversing rubber. 4 is pulled out from the inside of the mounting pipe P ₁ , and the inlet end of the cured repair material is processed to finish the repair work.

[Reversing Machine (FIG. 7)] The reversing machine 1 has a drum-shaped main body having a pressure-resistant airtight structure, and as shown in FIG. 7, a supporting leg 15 is mounted on a machine base 14 having wheels W and stays Y. And a supporting leg 16 for supporting, and an opening / closing hatch 17 for work and a supply mouthpiece 18 for connecting to a compressor (not shown) are provided on the upper part, and a connection opening 19 for connecting to the reversing guide 2 is provided on the front side. The adjustment leg 1 includes a winding core 13 which is rotated by an outer handle (not shown) inside the main body.
The connection hole 19 can be vertically adjusted by selectively supporting the front portion of the main body by the group 6 of the adjusting holes h. In addition, connection port 1
A coupler C ₀ is screwed onto the tip of the 9 to facilitate attachment / detachment to the base end of the reversing guide 2. Further, since the machine base 14 includes the wheels W and the stay Y, the front stay Y is moved during movement.
Is lifted and moved by the wheels W, and the stay Y prevents the reversing machine from moving if installed on site.

[Inversion Guide] The overall structure of the inversion guide 2 is
From the reversing machine 1 side, a first guide piece 21, a second guide piece 22 for connecting to the connection port 19 of the reversing machine 1, and a curved third part.
The guide piece 23, the flexible guide piece 20, and the curved tip guide piece 24 are detachably connected to each other.
The guide piece 21, the second guide piece 22, the third guide piece 23, and the tip guide piece 24 are lightweight metal pipes having the same diameter (140 mm diameter), and the flexible guide piece 20 is a sunny pipe (trade name). Then, as shown in FIG. 7, the first guide piece base end 21 _E is the coupler means C ₀ on the connection port 19 of the reversing machine 1.
It has a structure that can be screwed and attached to the second guide piece 22 and the third
The structure is such that the valve V is interposed between the guide piece 23 and the guide piece 23, and the hollow first connecting pipe 7 is connected to the lower end of the third guide piece 23 via the clamp means C _1. , The upper end of the flexible guide piece 20 is fastened to the outer periphery of the first connecting pipe 7 with the band B ₂ (FIG. 2), and the lower end of the flexible guide piece 20 is a hollow second piece.
The second connecting pipe 8 is fastened to the upper end of the connecting pipe 8 with a band B _3.
The lower end of is connected to the upper end of the tip guide piece 24 by the clamp means C ₂ .

The clamping means C ₁ is, as shown in FIG.
An engaging ring 71 is screwed and coupled to the lower end of the third guide piece 23 with screws S ₁ and S ₂ , and a fitting portion 74 at the upper end of the first connecting pipe 7 is fitted into the engaging ring 71 to form a packing 71 ′. This is a structure in which the projection 72 ′ is fitted and fixed to the recess 74 ′ on the fitting portion 74 of the first connection pipe 7 by abutting and pivoting the locking piece 72 on the engagement ring. Further, as shown in FIG. 4, the clamping means C ₂ has an engaging ring 81 screwed and coupled to the upper end of the tip guide piece 24 with screws S ₃ and S ₄ , and inside the fitting portion 84 at the lower end of the second connecting pipe 8. The engaging ring 81 is fitted in the upper end of the fitting ring 84, and the upper end of the engaging ring 81 is brought into contact with the packing 84 ′ of the fitting portion 84.
It is a structure in which is fitted and fixed to the recess 81 ′ on the locking ring 81. That is, both the clamping means C ₁ and the clamping means C ₂ can be attached / detached by one-touch operation by manually raising and lowering the locking pieces 72 (82).

Further, the tip guide piece 24 has a mouthpiece t ₀ arranged at an intermediate portion thereof, and a tube t from a pressurized fluid feeder (not shown) is connected to the mouthpiece t ₀ so that the tip guide piece 24 is A high pressure fluid a (FIG. 11) can be supplied to the peripheral surface, and a fastening groove M for facilitating airtight fastening of the base end 5 _E of the repair material 5 is arranged on the outer periphery of the tip of the guide piece 24. Also, the first connecting pipe 7
The, as shown in FIG. 2, fitted with a rubber elastic pipe 9, by hanging a flexible guide piece 20 allows fastening the attachment member 10 for inverting the rubber base end 4 _E mounted on the tip.
The tip guide piece 24 has a tip 24 so that the repair material 5 having various diameters corresponding to various inner diameters of the mounting pipe P ₁ can be mounted.
Those having different _T diameters only (for example, 75 for mounting pipe diameter 100, 130 for mounting pipe diameter 170, and 170 for mounting pipe diameter 200) are prepared.

Further, the second guide piece 22 and the third guide piece 2
3 is connected to the second guide piece 22 as shown in FIG.
Two build-up rings 22 with a space d ₁ (about 3 cm) at the end.
′, 22 ′, two buildup rings 23 ′, 23 ′ are provided at the end of the third guide piece 23 with a space d ₁ therebetween, and the end-to-end distance L ₁ ( 25 cm), a rubber tube 25 having a length L ₀ of 40 cm and a diameter slightly smaller than the diameter of the reversing guide pieces 22 and 23 is fitted between both guide pieces, and the two guide pieces are inserted. The distance d ₁ between the built-up rings 22 and 23 is tightened in an airtight state with a tightening band B ₁ , and only the portion of the rubber tube 25 having a length L ₁ between both guide pieces 22 and 23 is fluid (air). It is formed so that no leakage occurs.

[Valve V (FIG. 8, FIG. 9, FIG. 10)] As shown in FIG. 8, the valve V has a rectangular tube-shaped cover 31 welded and formed of an iron plate and a second guide piece 22 by means of a mounting piece 32.
The rubber tube 25 is attached so that it extends from the end to the end of the third guide piece 23. A reinforcing plate 31 'is provided in the middle of the cover 31.
The guide nuts N are fixed to the reinforcing plates 31 'on both sides, and the screw rods 34 are screwed into the guide nuts N. The tip of each screw rod 34 has a thickness of 3 cm and a width of 2.5 cm.
Is attached by a conventional means so that the rotation of the screw rod 34 is not transmitted, and a handle 33 ′ is attached to the outer proximal end of the screw rod 34. The pulley 33 provided is fixed. Then, the guide plates G are fixed to the four corners of the inner surface of the cover 31 so as to sandwich the pressure contact plates 35 from both sides. That is, when the handle 33 ′ is rotated, the screw rod 34 is guided by the guide nut N to project and retract, and the respective pressure contact plates 35 can be moved forward or backward while being guided by the upper, lower, left, and right guide plates G in the cover 31. By the inward advancing action of the pressure contact plate 35, the central portion of the rubber tube 25 can be pressure contacted from both side surfaces. Note that instead of the guide plates G at the four corners of the total of 8 plates on the top, bottom, left and right, guide grooves are formed on the inner surface of the cover 31 to form the press contact plate 3.
Both ends of 5 may slide in the guide groove.

Further, the cover 31 of the valve V is shown in FIG.
As shown in (A) and (B), the connector 39 on the inner surface side and the nipple 38 on the upper surface side are screwed together with the nuts n ₁ and n ₂ in a cover clamping manner. The socket 37 is screwed, and the pressure gauge M is installed above the T-shaped socket 37.
Is screwed into the nipple 38 from the side of the T-shaped socket 37.
The adjusting valve V ₀ is screwed through the adjusting valve V _0, and a pressure supply source (not shown) is provided outward from the adjusting valve V ₀ through the nipple 38 ′.
It is a structure that connects with. The upper end of the rubber tube t ₁ is connected to the connector 39 on the inner surface of the cover 31, and the lower end of the rubber tube t ₁ is attached to the upper surface of the rubber tube 25 near the third guide piece 23 via the connector 29.

That is, the inside of the rubber cylinder 25 is in communication with the pressure gauge M and the adjusting valve V _{0. When the} pressure gauge M detects the pressure drop inside the rubber cylinder 25, the adjusting valve V ₀ is opened and the nipple 38 is opened. A high-pressure fluid (air) is added from a high-pressure source (not shown) connected to ′ ′ to restore the pressure inside the rubber cylinder 25 to a desired value, and the high-pressure source and the nipple 38 ′ are separated to set the adjusting valve V ₀ . High pressure fluid (air) in the rubber tube 25 if opened
It is a structure that can release. Moreover, since the rubber tube is connected between the rubber tube 25 and the connector 39 fixed to the cover 31, the valve V can be easily attached and detached.

[Mounting of Reverse Rubber 4 (FIGS. 1, 2 and 5)] The reverse rubber 4 is a rubber tube having a diameter smaller than the inner diameter of the reverse guide 2, and the base end 4 _E is placed inside the flexible guide piece 20. It is attached to the extended mounting member, and the tip 4 _T is locked to the reversing rope 11. That is, as shown in FIGS. 1 and 2, the clamping means C ₁
The third guide piece 23 can be detachably attached to the lower end of the third guide piece 23.
The base end 9 _E of an elastic pipe 9 made of a thick rubber tube having a smaller elasticity than the reversing rubber 4 is fitted on the outer periphery of the tip of the first connecting pipe 7 made of a metal tubular member having a diameter substantially the same as that of the screw band B. _Five
2 is airtightly fastened (FIG. 2), and the tip of the elastic pipe 9 is airtightly fastened with the screw band B ₆ on the base end 10 _E of the hollow mounting member 10 of the plastic molded body.

Then, the reversing guide inserted in the reversing guide 2
Base 4 of Mu 4_EAttaching member tip 10_T(Fig. 2) outward
Bend and screw a screw to the outer peripheral surface of the tip of the mounting member 10.
De B _FourAirtightly fastened with the inverted rubber tip 4_TShown in Figure 5
Screw hole H at the center₀50mm diameter with closed form
Fixed to the outer periphery of the cylindrical tip fitting 40 having the face plate portion 41 of
Airtightly fastened with a constant band and projecting on the peripheral edge of the face plate 41
Tie the end of the reversing rope 11 to the retaining ring 42
The base end of the rolling rope 11 is locked and wound around the winding core 13 in the reversing machine.
It

[Preparation of Repairing Material (FIG. 6)] As shown in FIG. 6, the repairing material 5 is a knitted woven fabric of glass fiber or synthetic multifilament thick untwisted yarn having substantially the same diameter as the mounting pipe P ₁ . Adopting flexible thick synthetic nonwoven fabric as the cloth material 51,
It is a tubular body with a three-layer structure in which a plastic film is adopted as a sheet for covering the outer layer 52 and the inner layer 53 are loose and the layers are loose. Prepare a tube with the same diameter and length.

Then, as shown in FIG. 6C, the cloth material 5 is formed by using a table 55 having two pairs of front and rear squeezing rollers 56.
1 and the inner film 53, an injection pipe 57 is inserted between the layers, and a vinyl ester resin (or polyester resin) set so as to cure in a predetermined time (2 hours to 2 hours 30 minutes) is injected as indicated by an arrow F _0. It is injected from 57 and is squeezed by the squeezing roller 56 while uniformly immersing the synthetic resin liquid, and the repair material 5 is taken out as shown by an arrow F ₅ . The outer film 52
An end portion 52 _T (FIG. 5 (C)) extending further outward than the end of the inner film 53 is formed on one side end of the.

[Mounting of Repair Material 5 on Inversion Guide 2 (FIGS. 1 and 5)] As shown in FIG. 5C, the outer film extending portion 52 _T of the repair material 5 is connected with a string or an adhesive tape. String 12
It is fixed to the loop L at the base end, the string 12 is pulled, and the tip 5 _T of the repair material 5 is inserted into the inversion rubber 4 until it comes close to the inversion rubber tip 4 _T. Insert the threaded hole H ₀ of the tip fitting 40 from which the closing bolt 44 has been removed, and keep the tip of the repair material 5 _{T at an} appropriate length from the inverted rubber tip 4 _T so that the tip of the string 12 is at the center of the hollow nut 43. The hollow nut 43 is screwed into the screw hole H ₀ while penetrating the small diameter hole O ₁ , and a knot is formed at the end of the string 12 so that the knot is seated on the bottom of the large diameter hole O ₂ and the closing bolt 44. The tip end of the string 12 is fixed to the tip fitting 40 by screwing into the hollow bolt 43.

Further, the base end 5 _E of the repair material 5 is bent outward from the end 2 _{T of} the tip guide piece 24 so that the tip guide piece 24.
The band B ₇ and B ₈ are fastened on the groove M of the above. Even when the repair material 5 is inserted into the reversing guide 2 and the reversing rubber 4, the clamping means C ₁ and C ₂ are removed to divide the reversing guide 2, and the reversing rubber 4 is rewound by rewinding the reversing rope 11. If the work is carried out in the rearward direction, it is possible to easily mount and fix the tip 5 _T of the repair material 5 and insert the repair material 5 into the reversing guide 2 and the reversing rubber 4.

[Repair Step of Mounting Pipe P ₁ ] The repair work is carried out in the following steps 1) to 11). The required time is the time required for the sewer installation pipe P ₁ from the domestic sewage pipe to the main pipe. 1 ) First, the inner peripheral surface of the mounting pipe P _{1 that} needs repair is cleaned by high-pressure cleaning (required time: about 5 minutes). 2 ) Then, investigate the condition inside the cleaned mounting pipe (required time: about 5 minutes). 3 ) Next, the reversing machine 1 is installed on the site, and the reversing guide 2,
Prepare reverse rubber 4 and reverse rope 11 (required time is about 1
(0 minutes), and the repair material 5 is impregnated with the resin by the parallel work (required time is about 20 minutes).

4 ) Next, the repair material 5 impregnated with the synthetic resin is pulled into the reversal rubber 4 and attached to the reversal guide 2 (the required time is about 10 minutes). 5) is then positioned installed tip _{2 T} of the distal end guide piece 24 (about 5 minutes). 6 ) Next, high pressure air a is supplied from the prepared conventional air compressor (not shown) between the tip guide piece 24 and the repair material 5 via the tube t, and high pressure is also applied to the main body drum of the reversing machine 1. As shown in FIG. 11, while supplying the air A and gradually rewinding the reversing rope 11 (arrow R ₁ ) while observing the pressure gauge M, the repair material leading portion 5 _L expanded by the high-pressure air a.
Then, the repair material 5 that precedes by itself and the reverse rubber 4 behind which is pressurized and expanded by the high-pressure air A are reversed and advanced into the mounting pipe P ₁ .
Even after the entire length of the repair material 5 has been inserted into the mounting pipe P ₁ , the reversal rubber 4 is reversed and inserted further into the interior of the repair material 5 due to the presence of the string 12, and the entire length of the repair material 5 is covered so that the mounting pipe P ₁ Spread and press contact with the inner wall surface (reverse construction time is about 10 minutes). In addition, the supply of the high-pressure air a into the repair material leading portion 5 _L is performed by the reversal rubber 4
Although but becomes impossible when those Sessure the inner surface of the repair material 5 is inverted started, then leading portion 5 _L maintains the sealed state of high-pressure air a, leading the inverted rubber 4 to the reversing end of the repair materials 5 Part 5 _L.

7 ) Simultaneously with the completion of the reversing operation, the valve V is operated, and the rubber cylinders 25 on both sides are pressed against the rubber cylinder 25 to shut off airtightly, and then the high pressure air on the side of the reversing machine 1 is removed, The reversing machine 1 is opened to remove the reversing rope 11 from the core, and the reversing machine 1 is moved to the first guide piece 2 by the coupler C ₀ .
Disconnect from 1 and remove the reversing machine (required time about 10
Minutes). The separated reversing machine 1 is moved to the next site and used for performing the above steps 3) to 7). 8 ) Curing of the repair material (time required: about 85 minutes to 115 minutes) Even after the reversing machine 1 is cut off and removed in the step 7), the reversing guide 2 is the reversing work until the synthetic resin of the repair material 5 is cured. The state of time is continuously maintained, and the internal pressure of the reversal rubber 4 (pressure contact force to the repair material 5) during the curing process is maintained and managed by the pressure gauge M, and high pressure air is supplied from the adjusting valve V ₀ for the internal pressure drop. Deal with adjustments.

When the repair material 5 is hardened, 9) cutting the pipe opening (required time: about 10 minutes) → 10) dismantling and removing the reversing guide 2 and finishing the pipe opening (required time: 20 minutes) → 11) repairing state inside the mounting pipe Check the survey (time required: about 10 minutes). One mounting pipe P
Standard repair construction of ₁ ends the above 1) to 11) of the step, the required time is about 185 minutes to 215 minutes.
However, since the reversing machine 1 is used only in the steps 3) to 7), one reversing machine 1 can be moved to and used at a plurality of places, and the operation rate of the reversing machine can be used in the conventional construction method. It is more than tripled.

[0052] When the test was carried out construction with regard to sewer mounting tube in various forms from the mounting pipe P ₁ substantially straight configuration to the mounting pipe P ₁ substantially right-angled bent portion forms following construction order described above, satisfactory Results were obtained. That is, the mounting pipe P of the repair material 5
In the inverted insertion into a _1, and send the high pressure air a in the repairing material leading portion 5 _L, means for inverting inserted by inversion rubber 4 in reverse in a state of inflating the repair material leading portion 5 _L itself When adopted, the repair material 5 can be smoothly inserted even for a material having a large bend near a right angle in the mounting tube P ₁ or a material having a small protrusion on the inner wall of the mounting tube, and the repair material can be hardened. There were no large wrinkles that caused problems (flow resistance) on the inner surface.

[0053] Mounting If not confer high-pressure air a in the repairing material leading portion 5 _L, the repairing material leading portion 5 _L for a state of hanging in front of the inverted rubber advancing tip, in the presence of a substantially right angle near the bent portion In the reverse insertion into the pipe P ₁ , smooth uneven wrinkles were observed on the inner surface of the repair material after the pressure hardening, despite the fact that the reverse rubber 4 for reverse movement spreads and pressurizes. However, since the wrinkles were pressed by the outer peripheral surface of the reversal rubber 4 and were crushed considerably, the wrinkles were not a defect that impeded the running water function of the mounting pipe P ₁ . Then, the mounting pipe P ₁ that is substantially straight or has a gentle bend
Regarding the reversal insertion of the repair material into the inside and the rehabilitation of the mounting pipe P ₁ , there was no difference from the one in which the high pressure air a was applied to the repair material leading portion 5 _L.

When the flexible guide piece 20 is interposed between the tip guide piece 24 of the reversing guide 2 and the third guide piece 23, by adopting a longer flexible guide piece 20,
It is possible to cope with a considerable change in the distance and positional relationship between the installation position of the reversing machine on the ground and the mouth of the mounting pipe P ₁ in the sewage basin S. Therefore, in the work preparation time, the reversing guide without the flexible guide piece 20 interposed And a remarkable difference occurred. Further, when the high pressure air a is not supplied to the reverse rubber leading portion 5 _L , that is, when the high pressure fluid supply mouthpiece t ₀ is not attached to the tip guide piece 24,
The reverse rubber base end 4 _E mounting position (first mounting position) F ₁ is brought closer to the repair material base end 5 _E mounting position (second mounting position) F ₂ by reducing the hanging length of the leading portion of the repair material 5. Shorter,
It was also proved to be advantageous by inserting the repair material 5 into the mounting pipe P ₁ by turning it over.

[Others] As the high-pressure fluid A, water may be used in addition to air, or heated liquid or heated gas (air, gas)
It is also possible to use, and it is effective to shorten the curing time of the repair material if a heated fluid that does not hinder the reversal rubber is used. Further, as the valve V, instead of the means of the rubber cylinder 25 and the pressure contact plate 35, a conventional conduit opening / closing type valve for the metal reversing guide 2 may be used. In this case, if a rubber seal lip or the like is attached to the portion of the shutter that contacts the reversing rope 11, fluid leakage can be prevented considerably.
If the valve V is provided with the adjusting valve V ₀ , the pressure drop due to a slight liquid leak in the valve V can be compensated without trouble.

Further, the cloth material 51 as the core material of the repair material 5
As the material, a suitable material such as a woven cloth, a knitted cloth, or a non-woven cloth may be selected and used, and the sheet materials may be overlapped as necessary. Of course, the object of the present invention can be achieved by using a conventional cloth core material whose both surfaces are covered with plastic films.
Further, the pressure contact plate 35 used for the valve V corresponds to the one capable of exerting the pressure contact sealing function without damaging the reversal rubber 4, for example, the reversal rubber 4 and the reversal rope 11 such as one in which one is a convex surface and the other is a concave surface. Just choose the right one. Further, as the reversing rope 11, in order to reduce air leakage from around the reversing rope 11 due to the tightening of the valve V, for example, a rope having a soft plastic coating layer or a rubber-coated fiber rope is preferably adopted.

As the means for vertically tilting the protruding connection port 19 of the reversing machine 1, instead of vertically tilting the reversing machine itself, means for adjusting only the connection port 19 to the main body of the reversing machine 1 (universal tilt). Even if the joint means + adjustment locking means) is adopted, the vertical position of the tip of the reversing guide 2 can be adjusted, and the intended purpose can be achieved. In addition, the reversing guide 2 is a reversing machine 1 of a type in which all the other parts except the curved part such as the tip guide piece 24 and the third guide piece 23 are made of flexible pipe material, and the cap is attached only to the connection part. Even if the flexible deformation can be dealt with in the distance and positional relationship between and the inlet of the mounting pipe P ₁ , the initial purpose can be achieved.

If the base material 5 _{E of} the repair material 5 is fixed to the reversing guide 2 and is interposed in the reversing rubber 4, the repair material 5 together with the reversing rubber 4 moves from the reversing guide 2 into the mounting pipe P ₁ . since the inverted insertion can may be a a repair material tip 5 _T and inverted rubber 4 inner surface temporarily fixed with tape or the like, also the repair material outer film 52 tip and inverted rubber 4 inner peripheral surface and the adhesive temporarily fixing the desired The purpose of can be achieved. Further, since the elastic pipe 9 can maintain the airtight state and has flexibility, the intended purpose can be achieved. Therefore, instead of the rubber pipe, a flexible plastic pipe, a rubber-coated cloth pipe, or the like is used. May be. From the above description, the present invention, if properly selected and used the dimensions of the repair material and equipment used, not only the sewer installation pipe from the domestic basin, but also the installation pipe from the rainwater basin in the factory or home, and the drainage of the factory It will be apparent to those skilled in the art that the present invention can be applied to all drainage mounting pipes buried in the ground from the water reservoir provided on the surface, such as drainage mounting pipes from the reservoir.

[0059]

Repairing material 5 according to the present invention is to invert advanced together from reversing guide 2 into the mounting pipe P ₁ with inverted rubber 4 for inverting advance by the action of high pressure fluid, the attachment tube P ₁ repair retreading target curve, Or, even if it is bent, it can be mechanically inserted into the mounting tube into which the reversing rubber 4 can be reversed and inserted, and further, the reversing rubber 4 sequentially expands the insertion portion of the repair material 5 and applies it to the inner circumference of the mounting tube. Since the pressure is applied, the inner surface of the cured repair material 5 is finished smooth by the outer peripheral surface of the reversal rubber 4, and even if wrinkles are formed on the inner surface of the repair material 5 in the insertion portion, no smooth flow of water is caused. It can be cured to the state. In addition, the repair material 5 is also attached to the reversing guide 2 together with the reversing rubber 4 in the mounting pipe P.
_{Since 1} is rehabilitated and repaired, all of the preparatory work for repairing is done on the ground away from the repair target mounting pipe P ₁ , and workability and workability are improved.

In addition, at the time of construction, the reverse rubber 4 and the repair material
Tip 2 of reversing guide 2 with 5 attached _TInstallation of repair target
Tube P₁Necessary material for repair material 5 because it can be placed close to the entrance
Mounting pipe P also subject to repair₁It can be almost the same as the repair chief of
With the tip of repair material such as the conventional reverse hardening method (LIP method)
There is no long cutting and discarding part at the base, and repair material 5 and
Minimize the amount of hardener used (impregnated synthetic resin),
It can be rationalized.

Further, when the repair material 5 is mounted in the reversing guide, the repair material tip 5 _T is pulled into the reversing rubber 4 and connected to the reversing rubber tip 4 _T by the connecting cord 12, so that the entire length of the repair material 5 is increased. Even after being inverted and inserted into the mounting pipe P ₁ , the reversing rubber 4 can be further extended over the tip of the repair material 5, and the reversing rubber 4 covers the entire length of the repair material 5 to mount the repair material 5 on the mounting pipe P 1. _{(1) Since the} inner peripheral surface is pressed and cured, the entire length of the inner peripheral surface of the repair material 5 can be uniformly and smoothly cured, and the tip of the repair material 5 is not required after the curing processing. In addition, the repair material 5 is the cloth material 5
1, the outer sheet 52, the free layer structure of the inner sheet 53, by providing the extended portion 52 _T to the outer sheet one side, not only advantageous in homogeneous rational work hardening agent (synthetic resin), repair materials The extension portion 52 _T of the outer sheet 52 to be discarded after the curing treatment of 5 can be used for connection with the inverted rubber tip 4 _T, and therefore, the entire length of the cloth material 51 of the repair material 5 is the rehabilitation of the inner circumference of the mounting pipe P ₁ . And the connection of the repair material 5 to the inverted rubber tip 4 _T becomes easy.

In addition, the reverse rubber base end 4 _E and the repair material base end 5 _E
Is airtightly held in the reversing guide 2, and the repair material 5 is inverted and inserted by the reversing rubber 4 in a state where the fluid pressure a is applied to the leading portion 5 _L of the repair material 5 during reversing. Like the reversal rubber, it can be inserted smoothly and sequentially in the expanded state regardless of the corners and small protrusions in the mounting pipe P ₁ , and therefore the repair material 5 can be reversed and inserted into the mounting pipe P ₁ without wrinkling, and the mounting pipe P ₁ Can repair the inner surface of the mounting tube regardless of the shape of the inner surface.

Further, a flow path shutoff valve V is provided in the flow path of the reversing guide 2 for supplying the high pressure fluid A from the reversing device to the reversing rubber 4.
If the reversing rubber 4 is installed so that the flow path is blocked by the valve V when the reversing rubber 4 press-contacts and pressurizes the repair material 5 on the inner peripheral surface of the mounting pipe, the reversing machine 1 is stopped during the curing time of the repair material 5. In addition to saving the operating energy of the reversing machine by the valve action, it is also possible to prepare the reversing machine for the next preparation or disconnect the reversing machine from the reversing guide and use it at another work site. Therefore, it is possible to improve the operating rate of the reversing machine, which requires facility costs, and it is possible to economically and rationalize the repair work of the drainage mounting pipe P ₁ such as the sewer mounting pipe.

[Brief description of drawings]

FIG. 1 is an overall schematic view of a device of the present invention.

2A and 2B are enlarged explanatory views of a portion A _{1 of} FIG. 1, in which FIG. 2A is a state diagram in which a flexible guide piece 20 is mounted, and FIG. 2B is a state diagram in which the flexible guide piece 20 is removed.

FIG. 3 is an enlarged explanatory view of a clamp means C ₁ portion of FIG. ₁ .

FIG. 4 is an enlarged explanatory view of an A ₂ portion of FIG. 1.

FIG. 5 is an explanatory view of a main part of the present invention, in which (A) is an inverted rubber mounting state diagram, (B) is an enlarged view of a B portion of (A), and (C) is a mounting state of a repair material tip 5 _T. FIG.

FIG. 6 is a repair material diagram, (A) is an enlarged partial sectional view,
(B) is a cross-sectional view showing the arrangement of the injection pipe 57, (C).
FIG. 4 is an explanatory view of a synthetic resin impregnated state.

FIG. 7 is a schematic explanatory view of a reversing machine 1 used in the present invention.

FIG. 8 is a diagram of a valve V used in the present invention, (A)
Is a perspective view, and (B) is a schematic sectional view.

FIG. 9 is a diagram of a valve, (A) of FIG.
8A is a cross-sectional view, and FIG. 8B is a bb cross-sectional view of FIG.

[10] A valve diagram for use in the present invention, (A) is an exploded explanatory view of the control valve V _0, (B) an assembly diagram of the control valve V _0, (C) is an explanatory view of a rubber tube portion Is.

FIG. 11 is an explanatory view of the reversing action of the repair material 5 and the reversing rubber 4 of the present invention.

FIG. 12 is a schematic side view of the conventional LIP method, which is in the middle of reversal insertion of the repair material.

FIG. 13 is a diagram showing a step that follows FIG. 12,
(A) is a figure which shows the state of main pipe side edge processing after a repair material hardening, and (B) is a repair material hardening.

14A and 14B are prior art explanatory views, in which FIG. 14A is a schematic explanatory view of a device in which a reversal rubber is mounted, and FIG. 14B is a partially enlarged view of a usage state of the device of FIG.

[Explanation of symbols]

1 ... Reversing machine, 2 ... Reversing guide, 4 ... Reversing rubber,
4 _E ... Inverted rubber base end, 4 _T ... Inverted rubber tip end, 5 ... Repair material, 5 _E ... Repair material base end, 5 _T ... Repair material tip end, 7 ...
・ First connection pipe, 8 ... Second connection pipe, 9 ... Elastic pipe, 10 ... Mounting member, 11 ... Inverting rope, 12 ...
・ Connection cord, 13 ... winding core, 14 ... machine base, 15 ... support leg, 16 ... adjusting leg, 17 ... hatch, 18 ... supply mouthpiece, 19 ... connection Mouth, 20 ... Flexible guide piece, 21
... First guide piece, 22 ... Second guide piece, 23 ...
3rd guide piece, 24 ... Tip guide piece, 40 ... Tip metal fitting, 41 ... Face plate part, 42 ... Stop ring, 43 ... Hollow bolt, 44 ... Closing bolt, 51. ..Cloth material 52 ... Outer sheet (outer film), 53 ... Inner sheet (inner film), 55 ... Table, 56 ... Squeezing roller, 57 ... Injection pipe, 71, 81. ..Engagement rings, 72, 82 ... Locking pieces, 71 ', 82' ... Protrusions, 74 ... Fitting portions, 74 ', 81' ... Recesses, 84
... engaging portion, A, a, ... a high-pressure fluid, B ₁ .about.B ₈ ... stop (band), C _1, C ₂ ··· clamping means, F ₁ ... first
Mounting position, F ₂ ... second mounting position, P ₁ ... drainage mounting pipe,
V ... Valve,

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B29C 63/00-63/48 F16L 1/00 F16L 55/16

Claims (16)

(57) [Claims] 1. A tubular repair material (5) impregnated with a synthetic resin and a tubular reversal rubber (4), wherein a tip (5 _T ) of the repair material (5) is placed inside the reversal rubber (4). The reversal rubber (4) and the connecting string (12) are linked to each other and mounted on the reversal guide (2), and the reversal rubber (4) and the repair material (5) are acted upon by the action of the high-pressure fluid (A) on the reversal rubber (4). The reverse rubber (4) from the reverse guide (2) into the drainage mounting pipe (P ₁ ) so that the repair material (5) is outside the reverse rubber (4).
The impregnated synthetic resin is cured in a state where the repair material (5) is pressed against the inner peripheral surface of the mounting pipe (P ₁ ) by the expansion pressurizing force, and the reverse rubber (4) is pulled out after the repair material (5) is cured, A method for repairing a drainage mounting pipe, characterized in that the reversal guide (2) and the repair material (5) are separated. 2. The base end (5 _E ) of the repair material (5) is fastened to the outer periphery of the tip (2 _T ) of the reversal guide (2), and the repair material tip (5 _T ) is inside the reversal rubber (4). Pull in the connection string (12)
Connect with the tip of the reversing rubber (4 _T ) by the reversing machine (1)
Connect the reversing rubber tip (4 _T ) to the reversing rope (11) unwound from the winding core (13) of the reversing rubber (4) into the drainage mounting pipe (P ₁ ) from the reversing guide (2). The repair method according to claim 1, wherein the repair material (5) is reverse-extended to the outside of the reverse rubber (4) by reverse-extending. 3. The repair material (5) includes at least a synthetic resin-impregnated cloth material (51), an outer sheet (52), and an inner sheet (53), which are three layers in a free-layered form. The repair method according to claim 1 or 2. 4. The repair method according to claim 1, wherein the outer sheet (52) of the repair material (5) is provided with an extending portion (52 _T ) at its tip. 5. A lead portion during reversal of the repair material (5), wherein both the reversal rubber base end (4 _E ) and the repair material base end (5 _E ) are air-tightly held with respect to the reversal guide (2). The repair method according to any one of claims 1 to 4, wherein the repair material (5) is reversely inserted by the reversal rubber (4) while the pressure of the high-pressure fluid (a) is applied to the (5 _L ). 6. A reversing rubber (4) is provided with a flow path shut-off valve (V) in a flow path of a reversing guide (2) for supplying the high-pressure fluid (A) from the reversing machine (1) to the reversing rubber (4). The valve (V) blocks the flow path of the reversing guide (2) when the repair material (5) is invertedly inserted into the mounting pipe (P ₁ ) and pressed against the inner peripheral surface of the reversing guide (2). The repair method according to any one of claims 1 to 5, wherein the repair material (5) is cured while maintaining the high-pressure expansion state of 4). 7. The valve (V) includes a rubber tube (25) provided in the flow path of the reversing guide (2), and a pressure contact means (33, 34, 35) for the rubber tube (25). Repair method of 6. 8. A reversing guide (2) is connected to a connection port (19) of a reversing machine (1) having a winding core (13) inside and a supply mouthpiece (18) on the surface, and the reversing guide (2). ) Is provided with a valve (V) for shutting off a flow path, and a base end (4 _E ) is airtightly attached to a first attachment position (F ₁ ) in the middle of the inversion guide (2). Connect the tip (4 _T ) of the inversion rubber (4) to the inversion rope (11) locked to the winding core (13),
The repair material base end (5 _E ) can be attached to the second attachment position (F ₂ ) of the inversion guide tip (2 _T ) and the inside of the inversion rubber (4) is extended rearward from the inversion rubber tip (4 _T ). String (1
2) A drainage pipe repair device that can lock the tip of repair material (5 _T ) by 2). 9. The repair material base end (5 _E ) is attached to the second mounting position (F).
₂ ) Airtightly mounted, and a pressurizing fluid supply mouthpiece (t ₀ ) was arranged between the first mounting position (F ₁ ) and the second mounting position (F ₂ ) of the inversion guide (2). The repair device according to claim 8. 10. A plurality of shape-retaining proximal end guide pieces (21, 22, 2) each of which the reversing guide (2) is detachable.
Repair device according to claim 8 or 9, including 3) and a tip guide piece (24) and a flexible guide piece (20) for intermediate connection. 11. A first mounting position (F ₁ ) for holding the inverted rubber base end (4 _E ) is held at the tip of an elastic pipe (9) which is airtightly fixed in the inversion guide (2). the hollow is the mounting member (10), and inverting the rubber base end (4 _E) a mounting member (10) any one of the repair device Soramitsu manner fastened claims 8 to 10 to the distal end outer periphery. 12. A distal guide piece (24) and a proximal third side.
Flexible guide piece (20) that can be freely attached to and detached from the guide piece (23)
11. The repairing device according to claim 10, wherein an elastic pipe (9), which is connected by means of the above, and has a mounting member (10) fixed to the tip thereof, is arranged so as to extend from the third guide piece (23) side into the flexible guide piece (20). 13. A hollow first connecting pipe (7) is detachably connected to a lower end of a third guide piece (23) through a clamp means (C ₁ ), and a clamp means ( The hollow second connecting pipe (8) is detachably connected via C ₂ ) and the first connecting pipe (7) and the second connecting pipe (8) are detachably connected by the flexible guide piece (20). The repair device according to claim 12, 14. A base end (9 _E ) of the elastic pipe (9) is airtightly fastened to the first connecting pipe (7) by a stopper (B ₅ ),
The upper end (20 _T ) of the flexible guide piece (20) is covered on the elastic pipe (9) and airtightly fastened with the stopper (B ₂ ), and the lower end of the guide piece (20) is connected to the second connection. tube (8) according to claim 10, 12 or 13 were vacuum-tight manner fastened in end stop _{(B 3)} to the upper end
The repair device according to any one of 1. 15. An inverted rubber tip (4 _T ) is airtightly provided on the outer periphery of a cylindrical tip fitting (40) including a face plate portion (41) having a central hole (H ₀ ) provided with a screw (41 _S ). The core (1) is fastened to the retaining ring (42) provided on the face plate portion (41).
3) Fix the reverse rope (11) extending from
The central hole (H ₀ ) of the face plate portion (41) has a large diameter hole (O ₂ ).
And a hollow bolt (4) with a small diameter hole (O ₁ ) at the bottom center
3) Removably screwed, and the large diameter hole (O ₂ ) is screwed with a closing bolt (44) with a screw (43 _S ).
The repair device according to any one of 4 above. 16. The extension portion (52 _T ) of the outer sheet of the repair material (5) is attached to the base end of the connecting cord (12), and the tip (12 _T ) of the connecting cord (12) is a reverse rubber tip ( 4 _T ) is pulled out from the small diameter hole (O ₁ ) of the hollow bolt (43) screwed to the end fitting (40) that is fastened, and the large diameter hole (O _1
2 ) The repair device according to any one of claims 8 to 15, which can be fixed by a closing bolt (44) at the bottom.