JP5702890B2 - Pipe guide device, pipe insertion system, pipe rehabilitation system and rehabilitated pipe line for rehabilitating underground pipes - Google Patents

Description

  The present invention, in the underground pipe such as the main pipe (or sometimes referred to as "main pipe") or branch pipe (or sometimes referred to as "attachment pipe") of the drain pipe buried in the ground, The present invention relates to a technique for rehabilitating underground pipes by inserting new rehabilitation pipes for main pipes and branch pipes.

  Most of the conventional drain pipes are made of concrete. Concrete drain pipes have no rust problem and are relatively inexpensive. However, concrete drainage pipes are shaved by solids such as debris and metal pieces that flow through the pipes over the years, load bearing capacity decreases due to secular changes, and earthquakes and vehicles cause Cracks or cracks due to repeated loads.

  In addition, due to the distortion of the joint between the concrete drain pipes, if the concrete drain pipe is used without maintenance, the road may collapse due to water leakage outside the drain pipe. Therefore, it is necessary to restore the original function by rehabilitating the drainage pipe whose function is lowered.

Patent Documents 1 and 2 disclose a method and an apparatus for rehabilitating a drain pipe whose function has been reduced.
The apparatus described in Patent Document 1 shown in FIG. 18 has a flexible auxiliary pipe a (corresponding to “main pipe rehabilitation pipe” in this specification) wound around a rotating body b, and an opening d of a manhole c. The auxiliary tube a is inserted into the rehabilitation target portion of the tube body e, and then the auxiliary tube a is fixed to the tube body e.

  In FIG. 18, a rotation shaft f, a regulation plate g, a cap h, a winch i (insertion means), a wire j, guide rollers k to o, and guide portions p to r are illustrated.

  The apparatus described in Patent Document 2 is a tubular body drawing apparatus for bending the moving direction of the main pipe rehabilitation pipe from a vertical direction to a horizontal direction in a narrow manhole, which is used in the rehabilitation method as in Patent Document 1 ( (See FIGS. 2, 7, and 8 of Patent Document 2). The tubular body retracting apparatus has a main body frame that can be fixed in a manhole toward the drain pipe.

  The main body frame is provided with a guide portion for guiding the pipe lowered into the manhole into the drain pipe. The guide portion is a roller that rolls in contact with the upper surface of the tubular body that is lowered into the manhole, or a rod-shaped member that supports the lower peripheral portion of the tubular body and slides the tubular body. Note that Patent Document 1 and Patent Document 2 are both proposed by the applicant of the present application.

JP 2002-38581 A JP 2012-47033 A

  The above-mentioned Patent Document 1 discloses a method and apparatus for rehabilitating a main pipe of a drain pipe, but neither a method nor apparatus for rehabilitating a branch pipe is shown or described. Here, in the present invention, the above-mentioned branch pipe means a pipe connecting the drainage facility in the site and the main pipe. Moreover, the branch pipe in this invention means the pipe | tube which is interposed between both pipes and functions as a coupling | joint, for example, when connecting a branch pipe to a main pipe.

  Since the branch pipe has the above-mentioned problems related to the main pipe, it is necessary to consider a method and an apparatus for rehabilitating the branch pipe. The existing branch pipes are often made of ceramic and may be made of concrete or resin, but in any case, rehabilitation is required due to long-term use.

  By the way, in the branch pipe, the shape, diameter, and depth of the vertical hole entrance (generally referred to as “sewage basin”) when inserting the rehabilitation pipe for branch pipe is different from the main pipe, and the space is quite narrow. It is difficult to insert a rehabilitation pipe for a branch pipe into an existing branch pipe by using the same method and apparatus.

  For example, in the method and apparatus of Patent Document 1, a wire is fixed to the tip of the auxiliary tube, and the auxiliary tube is inserted by pulling with a winch. However, when such a method is used for a branch rehabilitation tube, Since the distal end portion of the branch pipe rehabilitation pipe after insertion is an intermediate part of the main pipe, it cannot be brought into direct contact, so that there is a problem that it is difficult to remove the wire fixed to the tip of the branch pipe rehabilitation pipe.

  Therefore, for example, when adopting a method of pushing out rather than pulling the rehabilitation pipe for branch pipes, the rehabilitation pipe for branch pipes must be stiffened to some extent, but if the rehabilitation pipe for branch pipes becomes hard, it tends to be difficult to bend. In addition, there is a problem that the rehabilitation pipe for a branch pipe is caught on an angular portion of the inner surface of the existing branch pipe and the efficiency of work is reduced or the rehabilitation pipe for a branch pipe is damaged.

  On the other hand, since the tubular body retracting device of Patent Document 2 is configured with a rehabilitating pipe for main pipes having a constant outer diameter as a target for retraction, the dimensions can be adapted to the diameters of the rehabilitating pipes for main pipes each time the diameter is different. There is a problem that the tubular body retracting device having the structure must be manufactured, and lacks versatility.

  The present invention has been made in consideration of the conventional problems as described above. In a pipe insertion system for inserting a rehabilitation pipe into a buried underground pipe such as a branch pipe or a main pipe having a reduced function, the rehabilitation pipe is caught. Pipe guide device, pipe insertion system, and underground pipe with reduced function can be inserted into the underground pipe so as not to reduce the efficiency of work or damage the pipe. It is a first object to provide a pipe rehabilitation system that can be rehabilitated and a rehabilitated pipe line.

  The second aspect of the present invention provides a single pipe guide device, a pipe insertion system, and a rehabilitated pipe line that can smoothly insert various rehabilitation pipes having different diameters into existing pipes of underground buried pipes. It is to be an issue.

  A tube guide device according to the present invention is a tube guide device that guides a rehabilitated tube when a rehabilitated tube having flexibility is inserted into an existing underground buried tube, and is provided on an outer peripheral surface of the rehabilitated tube. A guide roller that suppresses the displacement of the rehabilitation pipe in a direction other than the moving direction by rotating in contact with the frame, and a frame that fixes the rotation shaft of the guide roller while being held substantially horizontally, In the frame, the position for holding the rotation shaft of the guide roller is variable in the height direction.

In the tube guide device, the guide roller includes a pair of parts arranged in the direction of the rotation axis, and the frame displaces the guide roller in the height direction and in the front-rear direction perpendicular to the rotation axis. It is preferable to include a displacement adjustment mechanism and an interval adjustment mechanism for adjusting an interval between a pair of parts of the guide roller.
In the pipe guide device, a plurality of front plates for guiding various types of rehabilitation pipes are detachably provided at the outlet of the rehabilitation pipe, and the frame has a curvature according to the diameter of the rehabilitation pipe drawn into each front plate. It is preferable that different arc-shaped notches are provided.

In the tube guide device, the displacement adjustment mechanism has adjustment holes arranged in a matrix on the side wall of the frame, and a shaft provided in a state where a pair of parts of the guide roller are separated is installed. It is preferable that a pair of brackets are fixed to any of the adjustment holes.
In the tube guide device, the pair of parts of the guide roller are provided so as to be movable on the shaft in a state where the pair of parts are separated from each other. It is preferable to have a fixing screw for fixing the position.

The pipe insertion system according to the present invention includes the pipe guide device, a supply drum around which the rehabilitation pipe is wound, and a retraction device that draws the tip of the rehabilitation pipe from the back side of the existing underground pipe. Prepare.
The pipe line according to the present invention is rehabilitated using the pipe insertion system.

  The pipe guide device is installed in a vertical hole provided at the entrance of the underground pipe for branch pipe when the rehabilitation pipe for branch pipe is inserted into the underground pipe for branch pipe, and the guide roller extends from the vertical hole. The branch pipe rehabilitation pipe is installed in the vicinity of the squared portion so as not to contact the squared part on the side near the entrance of the vertical hole at the boundary between the horizontal hole and the vertical hole. It is preferable to suppress the deviation in the direction toward the angular portion of the deviation of the tubular rehabilitation pipe.

The pipe insertion system according to the present invention includes the pipe guide device, and an insertion device that sequentially feeds the branch pipe rehabilitation pipe from the tip thereof to the back side of the underground pipe for the branch pipe, And an installation tool capable of fixing the insertion device on the frame.
The pipe rehabilitation system according to the present invention includes the pipe insertion system, a perforator for perforating a planned joining portion of the main pipe renovated pipe inserted into the main pipe underground pipe, and the branch pipe ground in the planned joining portion. A joining machine for joining the rehabilitating pipe for branch pipes inserted into the buried pipe to the rehabilitating pipe for main pipes.
The pipe line according to the present invention is rehabilitated using the pipe rehabilitation system.

  The tube insertion system according to the present invention includes the tube guide device, an insertion device that sequentially feeds the branch tube rehabilitation tube from the tip thereof into the depth direction of the branch tube underground tube, and the tip of the branch tube rehabilitation tube. And a retracting jig for bending the moving path of the retracting wire used by the retracting device at the distal end portion of the branch pipe underground tube.

The pipe insertion system according to the present invention includes the pipe insertion system, a perforator for perforating a planned joining portion of the main pipe rehabilitation pipe inserted into the main pipe underground pipe, and the branch pipe ground in the planned joining portion. A joining machine for joining the rehabilitating pipe for branch pipe inserted into the buried pipe to the rehabilitating pipe for main pipe, and the pulling jig is mounted on the joining machine.
The pipe line according to the present invention is rehabilitated using the pipe rehabilitation system.

  The pipe guide device and the pipe insertion system according to the present invention can regenerate the underground pipe by inserting the rehabilitation pipe into the existing underground pipe, and in the transition part from the vertical hole to the horizontal hole. The rehabilitation pipe can be inserted into the existing underground pipe safely and efficiently by reducing the stress (rubbing, bending, etc. during the insertion operation) applied to the rehabilitation pipe.

  At that time, according to the configuration of the present invention, the height of the position for holding the rotation shaft of the guide roller installed between the portion near the entrance to the vertical hole and the rehabilitation pipe at the boundary between the vertical hole and the horizontal hole. Since the directional distance is variable, the position of the guide roller can be changed during field work, and the position in the height direction of the guide roller is appropriately adjusted according to the shape near the entrance of the existing underground pipe for each site. be able to.

According to the pipe guide device and the pipe insertion system of the present invention, there is an advantage that various rehabilitation pipes having different diameters can be smoothly drawn.
The pipe rehabilitation system according to the present invention is obtained by adding a drilling machine that drills a part to be joined of the main pipe rehabilitation pipe and a joining machine that joins the branch pipe rehabilitation pipe to the main pipe rehabilitation pipe to the pipe insertion system. In addition, drilling, insertion, and joining can be performed as a series of operations when rehabilitating the branch pipe, and the branch pipe can be rehabilitated relatively easily and safely. Reduction can be achieved.

It is a longitudinal cross-sectional view which shows the drainage channel to which the pipe insertion system which concerns on Embodiment 1 of this invention is applied. It is explanatory drawing which shows arrangement | positioning of the pipe | tube insertion system which concerns on Embodiment 1 of this invention. It is a front view which has a partial notch which shows the structure of the rehabilitation pipe | tube used for the pipe | tube insertion system which concerns on Embodiment 1 of this invention. It is a perspective view which shows the structure of the pipe guide apparatus used for the pipe insertion system which concerns on Embodiment 1 of this invention. FIG. 5 is a plan view of the tube guide device shown in FIG. 4. It is explanatory drawing which shows the rehabilitation pipe drawing-in method by the pipe insertion system which concerns on Embodiment 1 of this invention. (a) is a top view which shows the drawing-in state of the minimum diameter renovated pipe by the pipe insertion system which concerns on Embodiment 1 of this invention, (b) is the front view. (a) is a top view which shows the drawing-in state of the largest diameter renovated pipe by the pipe insertion system which concerns on Embodiment 1 of this invention, (b) is the front view. It is the schematic which shows the pipe | tube insertion system which concerns on Embodiment 2 of this invention. (A) is the perspective view which looked at the pipe guide apparatus from the side surface direction, (b) is the perspective view which looked at the pipe guide apparatus from the upper direction, (c) is the perspective view which looked at the pipe guide apparatus from the downward direction. (A) is the perspective view which looked at the rehabilitation pipe insertion machine from the side surface direction, (b) is the perspective view which looked at the rehabilitation pipe insertion machine from the back direction. It is the schematic which shows the pipe renovation system which concerns on Embodiment 3 of this invention. (A)-(d) is the schematic which shows the procedure of the pipe renovation operation | work which the pipe renovation system which concerns on Embodiment 3 of this invention performs. It is the perspective view which looked at the pipe guide device concerning modification 1 from the side. It is the schematic which shows the pipe | tube insertion system which concerns on Embodiment 4 of this invention. It is the schematic which shows the pipe renovation system which concerns on Embodiment 5 of this invention. It is a flowchart which shows the procedure of the pipe renovation operation | work which the pipe renovation system which concerns on Embodiment 5 of this invention performs. It is the schematic which shows the state which has inserted the conventional auxiliary tube in the pipe body.

<Embodiment 1>
1. Drainage channel to which a pipe insertion system according to Embodiment 1 is applied FIG. 1 is a longitudinal sectional view showing the structure of a drainage channel to which a pipe insertion system according to Embodiment 1 of the present invention is applied.

In FIG. 1, the drainage channel 1 buried in the soil usually has a structure in which a plurality of concrete pipes 1 a are connected, and one of the drainage channels 1 is a lower opening 2 a provided at the lower part of the upstream manhole 2. The other end of the drainage channel 1 is connected to a lower opening 3 a provided at the lower part of the downstream manhole 3.
In the first embodiment, a case where the flexible rehabilitation pipe is lowered from the upstream manhole 2 and then drawn into the aged drainage channel 1 from the left to the right in the drawing will be described as an example.

When the drainage channel 1 is rehabilitated, the drainage channel 1 in the range to be rehabilitated is inspected. Specifically, a high-pressure washing vehicle is arranged in the vicinity of the downstream manhole 3 and the inside of the drainage channel 1 is washed with high-pressure water.
Next, a self-propelled camera (not shown) is inserted into the drainage channel 1 to investigate whether there is an obstacle such as a tree root that hinders the retraction pipe.

  If it is necessary to remove the obstacle as a result of the investigation, a pipe working robot (not shown) is inserted into the drainage channel 1 and pretreatment such as obstacle removal is performed. In addition, in FIG. 1, the water stop plug 4 which prevents that the sewage from an upstream side enters into the drainage channel 1 is described.

2. Tube Insertion System According to Embodiment 1 FIG. 2 is an explanatory view showing the arrangement of the tube insertion system 50.
The pipe insertion system 50 is disposed in the vicinity of the upstream manhole 2 and supplies the rehabilitation pipe 10. The rehabilitation pipe is installed in the upstream manhole 2 and supplied from the supply drum 5 to the upstream manhole 2. It is mainly composed of a pipe guide device 6 for drawing 10 into the drainage channel 1.

  In FIG. 2, a guide device 7 for guiding the rehabilitation pipe 10 unwound from the supply drum 5 into the upstream manhole 2, the rehabilitation pipe 10 provided in the drainage channel 1 provided in the downstream manhole 3. A winch 8 for drawing through a wire, a pulley 9 on which the wire is hung, and a drawing jig 11 attached to the tip of a rehabilitation pipe 10 are described.

2.1 Supply Drum A long rehabilitation pipe 10 shown in FIG. 3 is wound around the supply drum 5.
In FIG. 3, the rehabilitation pipe 10 is composed of a flexible corrugated synthetic resin pipe in which a ridge reinforcing part 10b is formed in a spiral shape on the outer surface of the straight pipe part 10a.
The rehabilitation tube 10 is used in various sizes (outer diameters), for example, in the range of φ135 to 435 mm, depending on the tube diameter of the rehabilitation target.

  If the helical pitch of the ridge reinforcing portion 10b in the rehabilitated pipe 10 is too narrow, it becomes difficult to bend in the manhole, and if the helical pitch is too wide, the strength of the rehabilitated pipe decreases. Therefore, as the rehabilitation pipe 10 used for the pipe insertion system 500, the spiral pitch is set to 8 to 40 mm in order to achieve both the bendability in a narrow manhole and the strength as a self-supporting pipe, and the core material in the ridge reinforcing portion 10b. The height is 6 to 20 mm, the width of the core is 6 to 30 mm, the thickness of the straight pipe portion 10a is 10 to 50% of the core height, and the bending radius is 625 mm or less. . Here, the bending radius means the radius of an arc drawn by the center axis of the rehabilitation pipe when the rehabilitation pipe is bent in an arc shape.

The straight pipe portion 10a is composed of a lower-winding soft resin layer 10c and an upper-winding soft resin layer 10d. On the outer surface of the upper-winding soft resin layer 10d, a ridge reinforcement consisting of a core material covering portion 10e and a hard resin core material 10f is provided. The part 10b is wound and laminated.
As described above, each component of the rehabilitation pipe 10 is optimized to achieve both strength and flexibility, and thus is configured to be able to stand on its own. There is an advantage that a heating diameter expansion process for closely contacting the inner wall of the drainage channel 1 is not required. Therefore, if the drainage channel 1 is rehabilitated using the rehabilitation pipe 10 having the above-described configuration, a pressurizer using steam, hot water, hot water, or the like for heating and expanding the diameter becomes unnecessary.

  In addition, when the rehabilitation pipe 10 is drawn into the drainage channel 1 shown in FIG. 1, a grout mixed with a mortar and a chemical solution is provided in a slight gap between the inner wall of the drainage channel 1 and the outer wall of the rehabilitation pipe 10 as necessary. Can be filled as a filler. In addition, not only the said grout but plastic foams, such as a polyurethane foam which mixes an isocyanate and a polyol, can also be used as a filler, for example.

The lower wound soft resin layer 10c can be made of a thermoplastic resin excellent in chemical resistance, such as a vinyl chloride resin, a polyolefin resin, or an olefin-based or styrene-based thermoplastic elastomer.
The upper wound soft resin layer 10d is a thermoplastic resin having good adhesion and excellent chemical resistance to the lower roll soft resin layer 10c, such as a styrene-based, olefin-based, nylon-based, polyester-based, polyamide-based, or polystyrene-based thermoplastic elastomer. Can be molded.

Furthermore, it is more preferable to add an olefin resin to these thermoplastic elastomers, since the internal pressure strength, the external pressure strength, the flat strength, the compressive strength, and the tensile strength can be improved. Moreover, PP, PE, etc. are shown as said olefin resin.
The core material covering portion 10e is made of a material having the same or similar properties as the above-described upper wound soft resin layer 10d, and is formed into a cylindrical shape in the manufacturing process of the rehabilitation pipe 10, and spirally formed on the outer surface of the upper wound soft resin layer 10d. When wound, the upper wound soft resin layer 10d is heat-sealed and integrated.

  The hard resin core 10f is extruded in a rod shape by PE (polyethylene), PP (polypropylene), PPE (polyphenylene ether), PPS (polyphenylene sulfide), PEI (polyetherimide), PAR (polyarylate), PES (polyether) Sulphone), PEEK (polyetheretherketone), PTFE (polytetrafluoroethylene), PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PA (polyamide), POM (polyacetal), saturated polyester and polymer blends thereof Any one of the bodies is preferable, and the core material covering portion 10e is wound into the cylinder in the process of being formed into a cylinder shape.

The hard resin core material 10f and the core material covering portion 10e are heat-sealed, and the core material covering portion 10e wraps the entire circumference of the hard resin core material 10f so as to be substantially integrated with the core material covering portion 10e. It has become.
Moreover, it can also reinforce with reinforcing materials and fillers, such as glass fiber, carbon fiber, aramid fiber, potassium titanate whisker, talc, mica, calcium carbonate, carbon black, hydrous calcium silicate, and magnesium carbonate.
In the first embodiment, the rehabilitated pipe in which the ridge reinforcing part is formed in a spiral has been described. However, the ridge reinforcing part is not limited to a spiral, and concentric rings are repeatedly formed in a mountain / valley shape in the pipe axis direction. It may be.

2.2 Tube Guide Device FIG. 4 is a perspective view showing the configuration of the tube guide device 6.
In FIG. 4, a pipe guide device 6 includes a main body frame 60, a guide part 61 that guides retraction of various rehabilitation pipes having different diameters, a front side fixing part 62 and a rear side fixing part 63 that fix the main body frame 60 in a manhole. , And an adjustment unit 64 for adjusting the posture (including height) of the main body frame 60.
In addition, the side arrange | positioned toward the drainage channel used as the rehabilitation object in the main body frame 60 is called a front side, and the opposite side is called a rear side.

2.2.1 Main Body Frame The main body frame 60 is formed of a frame body that is assembled in a window frame shape when viewed from above, and a rehabilitation pipe (not shown) is inserted into the main body frame 60.
A front plate 60a is detachably provided on the front side (regeneration pipe outlet) of the main body frame 60, and an arc-shaped notch 60b is formed on the front plate 60a, and an arc-shaped ridge is formed along the arc-shaped notch 60b. The part 60c is provided inward.

A plurality of types of the front plate 60a are prepared according to the diameter of the rehabilitation pipe, and the curvature of the arc-shaped notch 60b in each front plate 60a corresponds to the curvature of the outer peripheral surface of each rehabilitation pipe.
In addition, the flange portion 60c is formed so that the cross section viewed from the side is first lowered, and by using the front plate 60a having the above-described configuration, the rehabilitation pipe that has passed through guide rollers 61e and 61f described later is stabilized. It is possible to enter the drainage channel 1.

At the lower part of each side wall of the main body frame 60, a protruding portion 60d (only the front side is shown) is extended horizontally and outwardly, and a nut 60e is fixed to each of the protruding portions 60d. The adjustment bolt 66 is screwed. Two adjustment bolts 66 for adjusting the posture of the main body frame 60 are provided on the front and rear of the main body frame 60, and a total of four adjustment bolts are provided on the left and right sides.
By rotating any or all of these four adjustment bolts around the vertical axis, the main body frame 60 can be adjusted to a desired height position and posture.

In addition, the lower end of each adjustment bolt 66 is provided with a seat base 66a for stabilizing the installation with respect to the bottom surface of the manhole.
The front surface of the main body frame 60 is connected by a front connection plate 60f arranged horizontally, and the rear surface is connected by a rear connection plate 60g arranged horizontally.

2.2.2 Guide portion A pair of brackets 61 a and 61 b are erected on the front upper portion of the main body frame 60 so as to face each other. These brackets 61a and 61b are fixed to a plurality of bracket adjustment holes 60h provided in the main body frame 60 using bolts and nuts 61c.

A shaft 61d disposed in the width direction of the main body frame 60 is installed between the pair of brackets 61a and 61b.
The shaft 61d is provided with a pair of guide rollers 61e and 61f separated from each other. These guide rollers 61e and 61f serve as bending fulcrum portions of the rehabilitating pipe when it is drawn into the drainage channel while bending the rehabilitating pipe, and rotate freely around the shaft 61d as a rotation axis while in contact with the rehabilitating pipe.

Each of the guide rollers 61e and 61f is a rubber roller having a conical skirt extending toward the main body frame 60, and smoothly contacts the rehabilitation pipe using rubber elasticity. Each guide roller 61e, 61f is preferably a roller made of an elastic body such as rubber. However, since the rehabilitation pipe has some elasticity, it may be a roller made of a metal having high rigidity.
Each guide roller 61e, 61f can be slid in the direction of arrow A on the shaft 61d by loosening a fixing screw 61g as a roller interval adjusting mechanism for adjusting the interval between them, and adjusted to a desired interval. Be able to.

The bracket adjustment holes 60h are arranged in a matrix of 3 rows and 7 columns, and by selecting any two bracket adjustment holes 60h for each side wall of the main body frame 60 and fixing the brackets 61a and 61b, The brackets 61a and 61b can be moved in the front-rear direction (arrow B direction) in the main body frame 60, and further moved in the vertical direction (arrow C direction).
The numerous bracket adjustment holes 60h function as guide roller adjustment mechanisms for moving and fixing the guide rollers 61e and 61f in accordance with the diameter of the rehabilitation pipe.

2.2.3 Fixing Section FIG. 5 is a plan view of the pipe guide device 6.
In FIG. 5, the front fixing portion 62 has an arcuate front pressing plate 62a, and this front pressing plate 62a slightly swings in the direction of arrow D around a fulcrum 62c provided on a T-shaped movable piece 62b. It can be made to stick to the inner wall of the upstream manhole 2 thereby.

Two guide pins 62d extend rearward from the left and right end portions of the movable piece 62b, and these guide pins 62d pass through a bearing portion 62e provided on the front connection plate 60f.
Furthermore, a ball screw 62f is connected to the center in the width direction of the movable piece 62b, and the operation portion 62g provided at the rear end of the ball screw 62f is rotated clockwise or counterclockwise. Thus, the front pressing plate 62a can be advanced and retracted in the direction of arrow E via the movable piece 62b.

On the other hand, the rear fixing portion 63 is provided with an arc-shaped rear fixing plate 63a. The rear fixing plate 63a can slightly swing in the direction of arrow F around the fulcrum 63c of the fixing fitting 63b fixed to the rear connecting plate 60g, and the upstream manhole on the opposite side to the front pressing plate 62a. It can be brought into close contact with the walls of the two housings.
FIG. 5 shows a level 67 provided at the center of the upper surface of the front connection plate 60f.

3. Rehabilitation Tube Retraction Next, a rehabilitation tube retraction method by the tube insertion system 50 will be described with reference to FIG.
In FIG. 6, after the pipe guide device 6 is carried into the upstream manhole 2, each adjustment bolt 66 is operated while looking at the level 67, so that the posture of the main body frame 60 is set to an appropriate height position while being horizontal. The front pressing plate 62a and the rear pressing plate 63a are fixed in the upstream manhole 2 by pressing each of the front pressing plate 62a and the rear pressing plate 63a against the inner wall of the manhole in the diameter direction.

Next, the rehabilitation pipe 10 supplied from the supply drum 5 is introduced into the upstream manhole 2 from the upper opening 2 b of the upstream manhole 2. At this time, if the rehabilitation pipe 10 is slidably sandwiched between a pair of rollers provided in the guide device 7, the insertion into the upstream manhole 2 is performed smoothly.
When the rehabilitation pipe 10 is retracted, a retraction jig 11 is attached to the tip of the rehabilitation pipe 10 in advance, and the wire 12 drawn from the downstream manhole 3 (see FIG. 2) is connected to the retraction jig 11. Shall.

The rehabilitation pipe 10 pulled by the wire 12 and descending in the upstream manhole 2 is guided into the main body frame 60 of the pipe guide device 6.
The rehabilitation tube 10 passing through the main body frame 60 is pressed against the guide rollers 61e and 61f by being pulled in the direction of arrow G by the wire 12.

Since the interval between the guide rollers 61e and 61f is adjusted according to the diameter of the rehabilitation pipe 10 to be retracted, and the conical guide rollers 61e and 61f are formed with valleys toward the center thereof, the guides The rehabilitation pipe 10 that comes into contact with the rollers 61e and 61f naturally passes through the center line CL (see FIG. 5) of the pipe guide device 6.
Then, the moving direction is smoothly changed from the descending direction to the horizontal direction by the idle rotation of the guide rollers 61e and 61f.

  As described above, the rehabilitating tube 10 is configured to have a bending radius of 625 mm or less, and the guide rollers 61e and 61f made of rubber are configured to be elastically deformed. The moving direction can be smoothly changed while maintaining the tube shape. The rehabilitated pipe 10 whose moving direction has been changed to the horizontal direction is drawn into the drainage channel 1 as it is.

4). Retraction of Rehabilitation Pipes with Different Diameters The tube insertion system 50 can retract various rehabilitation pipes with different diameters. In the following description, the retraction method will be described by taking rehabilitation pipes with a minimum diameter and a maximum diameter as an example.

4.1 Minimum diameter rehabilitation pipe FIG. 7 shows a configuration of the pipe guide device 6 when a minimum diameter rehabilitation pipe 10S (in the first embodiment, φ200 mm) is retracted, and FIG. The figure and the figure (b) have shown the front view. In FIG. 7, the inner wall 2c of the upstream manhole 2 is shown.
When the rehabilitation pipe 10S is retracted, the interval WS between the guide rollers 61e and 61f on the shaft 61d is set to 50 mm, and the brackets 61a and 61b are moved to the frontmost and lower part of the main body frame 60.

Specifically, in the bracket adjustment holes 60h arranged in a matrix, the brackets 61a and 61b are attached to the main body frame 60 by using the bracket adjustment holes 60h in the second and fourth rows from the front and corresponding to the bottom row. Fix it.
Thereby, the rehabilitation pipe 10S can be smoothly drawn into the drainage channel 1 with a bending radius R of 450 mm without applying an excessive load to the rehabilitation pipe 10S.

4.2 Rehabilitation Pipe with Maximum Diameter FIG. 8 shows the configuration of the retraction device 6 when the rehabilitation pipe 10L with the maximum diameter (φ350 mm in the first embodiment) is withdrawn. FIG. FIG. (B) shows a front view.
In addition, in both figures, the same code | symbol is attached | subjected about the same component as FIG. 7, and the description is abbreviate | omitted.

When retracting the rehabilitation pipe 10L, the interval WL between the guide rollers 61e and 61f on the shaft 61d is set to 65 mm, and the brackets 61a and 61b are moved to the highest part near the center of the main body frame 60.
Specifically, in the bracket adjustment holes 60h arranged in a matrix, the brackets 61a and 61b are attached to the main body frame 60 using the bracket adjustment holes 60h in the fifth and seventh rows from the front and corresponding to the top row. Fix it.

Thereby, the rehabilitation pipe 10L can be smoothly drawn into the drainage channel 1 with a bending radius R of 625 mm without applying an excessive load to the rehabilitation pipe 10L.
In this way, the pipe guide device 6 can displace the positions of the guide rollers 61e and 61f that come into contact with the rehabilitation pipes back and forth and up and down, and further, along the outer peripheral surface according to the diameters of the various rehabilitation pipes. The distance between the guide rollers 61e and 61f can be increased or decreased so that

On the other hand, the rehabilitation pipe supplied to the pipe guide device 6 is configured to be bent to a bending radius of 625 mm or less. Thereby, various rehabilitation pipes having different diameters can be drawn with one pipe insertion system 500.
When the rehabilitation pipe is retracted, the operation frame 62g (see FIG. 5) is rotated counterclockwise to release the fixing of the main body frame 60, and the pipe guide device 6 can be taken out from the manhole.

5. Summary As described above, according to the pipe insertion system 50 of the first embodiment, the brackets 61a and 61b are attached to the main body using the bracket adjustment holes 60h arbitrarily selected from the plurality of bracket adjustment holes 60h in the pipe guide device 6. Since it can be fixed to the frame 60 and the interval between the guide rollers 61e and 61f can be arbitrarily enlarged or reduced, various rehabilitation pipes having different diameters can be drawn smoothly.

<Embodiment 2>
1. Tube Insertion System According to Embodiment 2 FIG. 9 is a schematic view showing a tube insertion system 100 according to Embodiment 2 of the present invention. FIG. 9 shows a drainage basin A, an existing branch pipe B, an existing main pipe C, a main pipe rehabilitation pipe D, and a branch pipe rehabilitation pipe E. Another view seen from the same direction as FIGS. 9 and 9 is a left side view. Therefore, the other figure seen from the right direction toward FIG. 9 is a front view. The other view seen from the left direction toward FIG. 9 is a rear view. Another view seen from the direction of the back side of FIG. 9 is a right side view.

In Embodiment 2, there is a drainage basin A (such as a public sewage basin or a domestic sewage basin) in the shape of a vertical hole at the entrance of the branch pipe, and the drainage basin A continues in the shape of a horizontal hole mainly from the side surface. As a representative example, it is assumed that the existing branch pipe B is rehabilitated.
In FIG. 9, the pipe insertion system 100 includes a pipe guide device 110 and a rehabilitation pipe insertion machine 120. When rehabilitating the branch pipe of the drain pipe, the pipe insertion system 100 inserts a flexible branch pipe rehabilitation pipe E into the existing branch pipe B.

  The pipe guide device 110 has a guide roller and is fixed to the drainage basin A. By this guide roller, the branch pipe rehabilitation pipe E fed from the rehabilitation pipe insertion machine 120 is moved in a direction other than the moving direction inside the drainage basin A. The displacement is suppressed, and the branch pipe rehabilitation pipe E is introduced into the existing branch pipe B. The guide roller rotates freely. However, it may be changed so as to reduce the burden on the rehabilitation pipe inserting machine 120 in the feeding operation by positively rotating as necessary.

  The rehabilitating pipe insertion machine 120 can sequentially feed the rehabilitating pipe E for the branch pipes from the tip of the rehabilitating pipe E to the depth direction of the existing branch pipe B. On the other hand, there is a plurality of feed rollers that are rotated by an electric motor, and a mechanism for feeding the branch pipe rehabilitation pipe E in the pipe axis direction by rotating these feed rollers in a direction to push the branch pipe rehabilitation pipe E downward. Have.

2. Tube Guide Device According to Embodiment 2 FIG. 10A is a perspective view of the tube guide device 110 viewed from the side surface direction (the same direction as FIG. 9). The tube guide device 110 includes a first guide roller 111 at a high position, a second guide roller 112 at a low position, and a frame 113.

FIG. 10B is a perspective view (corresponding to a plan view) of the tube guide device 110 viewed from above. FIG. 10C is a perspective view (corresponding to a bottom view) of the tube guide device 110 viewed from below.
2.1 Guide Roller The first guide roller 111 is a rotating body made of metal, rubber, or the like, and guides the branch pipe rehabilitation pipe E pushed out from the rehabilitation pipe insertion machine 120 toward the second guide roller 112.

  The second guide roller 112 is a rotating body made of metal or rubber like the first guide roller 111, and is located at a lower position away from the rehabilitation pipe inserting machine 120 than the first guide roller 111, The branch pipe rehabilitation pipe E guided by the first guide roller 111 is guided into the existing branch pipe B.

  Further, the second guide roller 112 has an angular portion on the side near the entrance of the vertical hole at the boundary between the vertical hole (corresponding to the sewage basin A) and the horizontal hole (corresponding to the existing branch pipe B) and the vertical hole ( In FIG. 9, F) in FIG. 9 is fixed in the vicinity of the angular portion so that the branch rehabilitation tube E does not come into contact, and the displacement in the direction toward the angular portion of the displacement of the branch rehabilitation tube E is changed. Suppress.

  For example, by installing the second guide roller 112 so as to enter between the square part (F in FIG. 9) and the branch pipe rehabilitation pipe E, the branch pipe rehabilitation pipe at the transition part from the vertical hole to the horizontal hole. E does not hit directly, and the rehabilitating pipe E for the branch pipe is caught and the work efficiency is not lowered or the rehabilitating pipe E for the branch pipe is not damaged.

  The first guide roller 111 and the second guide roller 112 may both be axially shaped like a cylinder. In particular, the branch pipe rehabilitation pipe E is a round pipe, so that it is easy to guide the round pipe. A shape in which the diameter of the central portion is smaller than both end portions as in the shape, or a shape in which the central portion of the cylinder is recessed as in the opposite ring shape is desirable. Or you may guide so that two small rollers may be made to oppose and the rehabilitation pipe | tube E for branch pipes may be pinched | interposed.

2.2 Frame The frame 113 includes an installation tool 113a having a function of installing the pipe guide device 110 in the vicinity of the entrance of the drainage basin A so as not to be easily removed, and a holding tool for holding the rotation shaft of the first guide roller 111. 113 is a metal structure having 113b and a holding device 113c that holds the rotation shaft of the second guide roller 112.

  In the frame 113, the position (X position in FIG. 10A) that holds the rotation shaft of the second guide roller 112 is variable in the height direction, and the height of the second guide roller 112 in the drainage basin A is high. The vertical position can be adjusted during field work. For example, the holding device 113c has a plurality of holes for holding the rotation shaft of the second guide roller 112, or a plurality of horizontally long holes having different heights as shown in FIG. There is a hole shaped like a comb.

2.3 Position Adjustment of Second Guide Roller When the operator changes the position for holding the rotation shaft of the second guide roller 112, there are a plurality of holes for holding the rotation shaft. When the rotating shaft is held in one of the holes, the split pin that stops the bearing attached to the rotating shaft is removed, the second guide roller 112 is temporarily removed from the bearing, and the position of the bearing is set to a desired position. After changing to, attach the rotating shaft to the bearing and insert the split pin into the rotating shaft.

  Alternatively, when the hole for holding the rotation shaft of the second guide roller 112 has a comb-like shape and the rotation shaft is held in one of the plurality of horizontally long holes, the branch pipe rehabilitation pipe E In a state in which the rotary shaft is not inserted, the position in the height direction holding the rotary shaft can be changed by moving the rotary shaft through the vertical hole to the desired horizontal hole without removing the split pin. Here, in the state where the branch pipe rehabilitation pipe E is inserted, the second guide roller 112 is continuously pushed by the branch pipe rehabilitation pipe E, so that the height of the rotating shaft does not change unintentionally.

Here, the position where the rotation shaft of the second guide roller 112 is held is, for example, a position 200 mm deeper than the ground contact surface in the installation tool 113a, and the adjustment range (range Y in FIG. 10A) is generally Assuming a typical household drainage facility, it is preferably 25 mm or more in the height direction. Further, if the adjustment range is set to a length with a margin, for example, 15 mm or more and 150 mm or less in the height direction, variations in the shape near the entrance of the branch pipe at each site can be almost absorbed (of course, limited No intention)
Here, the position where the rotation shaft of the first guide roller 111 is held is, for example, a position that is 100 mm higher than the ground contact surface in the installation tool 113a.

  In the second embodiment, the pipe guide device 110 includes two guide rollers, that is, the first guide roller 111 and the second guide roller 112, but the first guide roller 111 is not necessarily required. It may be replaced with a buffer member or a slide, and it is sufficient that at least the second guide roller 112 is provided.

  The number of guide rollers may be any number within a practical range. In short, the pipe guide device 110 may include one or a plurality of guide rollers that guide the branch pipe rehabilitation pipe E pushed out from the rehabilitation pipe insertion machine 120 into the existing branch pipe B. In such a case, the frame 113 holds all the rotation shafts of one or a plurality of guide rollers.

3. Rehabilitation pipe insertion machine FIG. 11A is a perspective view of the rehabilitation pipe insertion machine 120 as viewed from the side surface (the same direction as FIG. 9), and FIG. 11B shows the rehabilitation pipe insertion machine 120 in the rear direction (FIG. 11). It is the perspective view seen from the direction which goes from left to right in (a).
As shown in FIGS. 11A and 11B, the rehabilitation pipe inserting machine 120 includes rubber rollers 121 a and 121 b, a power unit 122 and a frame 123.

  The rubber rollers 121a and 121b are, for example, rubber rollers filled with air, sandwich the branch pipe rehabilitation pipe E from the left and right, and the rubber roller 121a rotates clockwise (in the direction of arrow R1 in FIG. 11A). The rubber roller 121b rotates counterclockwise (in the direction of arrow R2 in FIG. 11A), and feeds the branch pipe rehabilitation pipe E in the back direction (downward direction in FIGS. 11A and 11B).

  Further, the left rubber roller 121a can adjust the interval between the rubber roller 121a and the rubber roller 121b by moving the position of the rotation shaft. The rubber roller 121a and the rubber roller 121a can be adjusted appropriately according to the thickness of the branch pipe rehabilitation pipe E to be used. The distance from the rubber roller 121b can be adjusted. The rubber roller 121a is urged by applying a load in the direction of the rubber roller 121b (the direction from the left to the right in FIG. 11A) by an elastic material such as a spring, and branches between the rubber roller 121a and the rubber roller 121b. You may make it pinch the rehabilitation pipe | tube E for pipes from right and left.

  The power unit 122 is an actuator that holds and drives the rubber rollers 121a and 121b, and includes, for example, a motor, a gear, a variable speed function (all not shown), and a configuration necessary for driving the switch 122a and the like.

  It is desirable that the frame 123 further includes an installation tool 123a that allows the rehabilitation pipe insertion machine 120 to be placed on the frame 113 of the pipe guide device 110. The rehabilitation pipe insertion machine 120 can be installed on the frame 113 by the installation tool 123a, and the relative positions of the rehabilitation pipe insertion machine 120 and all the guide rollers are fixed. It becomes easy and safe to perform work continuously.

4). Summary As described above, according to the pipe insertion system 100 of the second embodiment, the branch pipe can be rehabilitated by inserting the branch pipe rehabilitation pipe E into the existing branch pipe B, and in particular, from the vertical hole to the horizontal hole. In the transition portion, the stress applied to the branch pipe rehabilitation pipe E (such as rubbing or bending during insertion) can be reduced, and the branch pipe rehabilitation pipe E can be inserted into the existing branch pipe B safely and efficiently.

  At that time, since the distance in the height direction of the position 113c that holds the rotating shaft of the second guide roller 112 installed between the angular portion (F in FIG. 9) and the branch pipe rehabilitation pipe E is variable. In addition, the position of the second guide roller 112 can be changed during field work, and the position of the second guide roller 112 in the height direction can be appropriately adjusted according to the shape of the vicinity of the entrance of the existing branch pipe B for each field. .

<Embodiment 3>
1. Pipe Rehabilitation System According to Embodiment 3 FIG. 12 is a schematic view showing a pipe rehabilitation system 200 according to Embodiment 3 of the present invention. Here, FIG. 12 shows a drainage basin A, an existing branch pipe B, an existing main pipe C, a main pipe rehabilitation pipe D, a branch pipe rehabilitation pipe E, a joint planned portion G, and a camera K.

  In FIG. 12, the pipe rehabilitation system 200 includes a pipe guide device 110, a rehabilitation pipe insertion machine 120, a punching machine 230, and a joining machine 240 (see FIG. 13 (d)). When rehabilitating the branch pipe of the drain pipe, the pipe rehabilitation system 200 drills the portion G to be joined, inserts the rehabilitation pipe E for the branch pipe into the existing branch pipe B, and regenerates the rehabilitation pipe E for the branch pipe for the main pipe rehabilitation. Join to tube D. In addition, in the pipe rehabilitation system 200 of Embodiment 3, the same number is attached | subjected to the component similar to the pipe insertion system 100 of Embodiment 2, and the description is abbreviate | omitted.

  The drilling machine 230 is an in-pipe work robot capable of remote control having a function of drilling the joint planned portion G in the main pipe rehabilitation pipe D. Here, a video camera car equipped with a photographing device is run side by side to check the work position, work progress, work result, and the like.

  The joining machine 240 is a robot capable of remote operation having a function of joining the rehabilitating pipe E for branch pipes to the rehabilitating pipe D for main pipes in the joint part G to be joined. Here, the joining machine 240 is attached to the tip part of the rehabilitating pipe E for branch pipes. For this purpose, the flange is heated and softened, and the rehabilitating pipe E for the branch pipe is thermally welded to the rehabilitating pipe D for the main pipe as a bonding material.

2. Procedure of Pipe Rehabilitation Work FIGS. 13A to 13D are schematic views showing a procedure of pipe rehabilitation work performed by the pipe rehabilitation system 200. FIG.
Below, along FIG. 13 (a)-(d), the procedure at the time of implementing to drilling | piercing, insertion, and joining at the time of renovating a branch pipe as a series of work is demonstrated.

  (1) In FIG. 13A, first, the camera H is passed through the existing branch pipe B so that the state of the drilling work can be confirmed. Subsequently, the operator moves the drilling machine 230 to the joint portion G by a method such as drawing the main drilling pipe 230 into the main pipe rehabilitation pipe D while watching the video taken by the camera H, and remotely operates the drilling machine 230. Do the drilling work.

(2) In FIG. 13B, after removing the camera H and manually inserting the branch rehabilitation pipe E into the existing branch pipe B by about 300 mm, rehabilitation with the pipe guide device 110 near the entrance of the drainage basin A A tube insertion machine 120 is attached.
(3) In FIG. 13 (c), the branch rehabilitation pipe E is installed in the existing branch pipe B by the power of the rehabilitation pipe insertion machine 120 while watching the image taken by the operator with the photographing device mounted on the drilling machine 230. Insert. Here, the insertion operation is continued until it can be confirmed that a portion of the flange J of the branch pipe provided at the distal end portion of the branch pipe rehabilitation pipe E has entered the main pipe rehabilitation pipe D, and when it is confirmed, the rubber rollers 121a, 121b Is rotated in the opposite direction to slightly return the branch pipe rehabilitation pipe E, and the flange portion J is aligned with the inner surface of the main pipe rehabilitation pipe D.

  (4) In FIG. 13D, a camera K is passed through the branch pipe rehabilitation pipe E so that the state of the joining work can be confirmed. Subsequently, while watching the image taken by the camera K, the operator moves the joining machine 240 to the joint joining portion G by a method such as drawing in the rehabilitating pipe D for main pipe with a wire, and remotely operates the joining machine 240. To join.

  In (1), (3), and (4) above, a camera car (not shown) is inserted into the main pipe rehabilitation pipe D by pulling it with a wire or self-propelled, and photographed by the camera car. Each operation may be performed while viewing the video.

3. Summary As described above, according to the pipe rehabilitation system 200 of the third embodiment, the punching machine 230 that punches the rehabilitation pipe for the main pipe, the pipe guide device 110 that guides the rehabilitation pipe for the branch pipe into the existing branch pipe, and the rehabilitation for the branch pipe Since the rehabilitation pipe insertion machine 120 for inserting the pipe E and the joining machine 240 for joining the rehabilitation pipe E for the branch pipe to the rehabilitation pipe D for the main pipe are provided, the branch pipe can be rehabilitated relatively easily and safely. Can be speeded up and cost can be reduced.

<Modification 1>
1. FIG. 14 is a perspective view of the tube guide device 110 according to Modification 1 as viewed from the side surface direction (the same direction as FIG. 9).
In FIG. 14, the frame 113 according to the first modification has a variable position for holding the rotation shaft of the second guide roller 112 and further a position for holding the rotation shaft of the first guide roller 111 (in FIG. 14). The position of X ′ is variable, as is the position for holding the rotation shaft of the second guide roller 112 (the position of X in FIG. 14). For example, the holding device 113b has a plurality of holes for holding the rotation shaft of the first guide roller 111.

  When the operator changes the position for holding the rotation shaft of the first guide roller 111, since there are a plurality of holes for holding the rotation shaft, the split pin that stops the bearing attached to the rotation shaft is provided. After removing the first guide roller 111 from the bearing and changing the position of the bearing to a desired position, the rotating shaft is attached to the bearing, and a split pin is inserted into the rotating shaft.

  Here, the hole for holding the rotation shaft of the first guide roller 111 is not shaped like a comb because the first guide roller 111 is in a relatively shallow position, so that workability is good. This is because priority was given to holding the rotating shaft more reliably than to reduce it. On the other hand, since the second guide roller 112 is in a relatively deep position, the workability is not so good. Therefore, the hole for holding the rotation shaft of the second guide roller 112 is shaped like a comb to reduce the work load. It is desirable to give priority to doing.

The position for holding the rotation shaft of the second guide roller 112 is the same as in the second embodiment.
The position for holding the rotation shaft of the first guide roller 111 is, for example, a position that is 100 mm higher than the ground contact surface in the installation tool 113a, and the adjustment range (range Y ′ in FIG. 14) is a general household drainage facility. Is preferably 20 mm or more in the height direction. Further, if the adjustment range is set to a length with a margin, for example, 15 mm or more and 200 mm or less in the height direction, variations in the shape near the entrance of the branch pipe at each site can be almost absorbed (of course, limited No intention)

2. Summary As described above, according to the pipe insertion system 100 and the pipe rehabilitation system 200 including the pipe guide device 110 according to the first modification, the position for holding the rotation shaft of the first guide roller 111 located at a shallow position. Since the position of the second guide roller 112 and the position of the first guide roller 111 can be changed during field work, the position of the second guide roller according to the shape near the entrance of the branch pipe for each work site. And the position of the first guide roller can be adjusted as appropriate.

<Embodiment 4>
1. Tube Insertion System According to Embodiment 4 FIG. 15 is a schematic view showing a tube insertion system 300 according to Embodiment 4 of the present invention. FIG. 15 shows a drainage basin A, an existing branch pipe B, an existing main pipe C, a main pipe rehabilitation pipe D, and a branch pipe rehabilitation pipe E.

  In FIG. 15, the pipe insertion system 300 includes a pipe guide device 110, a rehabilitation pipe insertion machine 120, a drawing apparatus 310, a wire fixing machine 320, and a drawing jig 330. The pipe insertion system 300 inserts a flexible branch pipe rehabilitation pipe E into the existing branch pipe B when rehabilitating the branch pipe of the drain pipe. In the tube insertion system 300 according to the fourth embodiment, the same components as those in the tube insertion system 100 according to the second embodiment are denoted by the same reference numerals, and the description thereof is omitted.

The drawing-in device 310 draws the distal end of the branch pipe rehabilitation pipe E from the back side by using a wire.
The wire fixing machine 320 is operated remotely by moving the dedicated water stop plug with wire to the tip of the branch pipe rehabilitation pipe E in the air-extracted state, and then inflating it with air. The apparatus for fixing the wire to the distal end portion of the branch pipe rehabilitation pipe E. After the insertion work, the wire can be removed by remote operation by removing air from the dedicated water stop plug.

The drawing jig 330 bends the moving path of the drawing wire used by the drawing device 310 at the far end of the branch pipe underground pipe. In the fourth embodiment, a pulley provided with means for moving in the main pipe rehabilitation pipe D is used as the retracting jig 330.
In the pipe insertion system 100 of the second embodiment, the pipe guide device 110 and the rehabilitation pipe insertion machine 120 are fixed to the drainage basin A. However, in the fourth embodiment, the pipe guide device 110 is used together with the pipe guide device 110. 110 and the rehabilitation pipe insertion machine 120 may be installed on the drainage basin A without being fixed.

  Further, in the pipe insertion system 100 of the second embodiment, the pipe guide device 110 includes two guide rollers, the first guide roller 111 and the second guide roller 112. In particular, the pipe insertion system of the fourth embodiment is included. In the system 300, since there is no fear that the branch pipe rehabilitation pipe E moves toward the first guide roller 111 by performing the drawing operation, the first guide roller 111 may be omitted.

2. Summary As described above, according to the pipe insertion system 300 of the fourth embodiment, the drawing operation by the drawing device 310 and the feeding operation by the rehabilitation pipe inserting machine 120 are simultaneously performed in parallel, so that the drawing operation and the feeding operation are performed. Compared with the case where the rehabilitation pipe is inserted by any one of the above, the burden on the rehabilitation pipe E for the branch pipe can be reduced and the soft pipe can be used, so that the bending of the existing branch pipe is relatively tight. Even if it is a case, it can insert without damaging the rehabilitation pipe for branch pipes.

  In addition, as described above, since the distal end portion of the rehabilitating pipe for branch pipe after insertion is an intermediate part of the main pipe, direct contact cannot be made, so there is a problem that it is difficult to remove the wire fixed to the front end of the rehabilitating pipe for branch pipe. However, this problem can be solved by using the above-mentioned dedicated water stop plug with wire.

<Embodiment 5>
1. Pipe Rehabilitation System According to Embodiment 5 FIG. 16 is a schematic view showing a pipe rehabilitation system 400 according to Embodiment 5 of the present invention. Here, FIG. 16 shows a drainage basin A, an existing branch pipe B, an existing main pipe C, a main pipe rehabilitation pipe D, and a branch pipe rehabilitation pipe E.
In FIG. 16, the pipe rehabilitation system 400 includes a pipe guide device 110, a rehabilitation pipe insertion machine 120, a drilling machine 230 (see FIG. 12), a drawing apparatus 310, a wire fixing machine 320, and a joining machine 410 with a drawing jig.

  When rehabilitating the branch pipe of the drain pipe, the pipe rehabilitation system 400 pierces the joint portion G to be inserted, inserts the rehabilitation pipe E for the branch pipe into the existing branch pipe B, and regenerates the rehabilitation pipe E for the branch pipe for the main pipe rehabilitation. Join to tube D. In the pipe rehabilitation system 400 of the fifth embodiment, the same components as those of the pipe rehabilitation system 200 of the third embodiment and the pipe insertion system 300 of the fourth embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A joining machine 410 with a pulling jig is obtained by mounting the pulling jig 330 of the fourth embodiment on the bonding machine 240 of the third embodiment, and withdraws various functions such as an outrigger and a rotation function that the bonding machine 240 originally has. Also used in the case of.

2. Procedure of Pipe Rehabilitation Work FIG. 17 is a flowchart showing a procedure of pipe rehabilitation work performed by the pipe rehabilitation system 400.
Below, the procedure at the time of implementing to drilling, insertion, and joining at the time of renovating a branch pipe as a series of work is demonstrated along FIG.

(1) As in FIG. 13A of the third embodiment, an operator performs a drilling operation by remotely operating the drilling machine 230 while viewing an image captured by the camera H (a drilling process). After the drilling operation is completed, the camera H and the drilling machine 230 are removed.
(2) A pull-in rope with a floater at the tip is inserted into the rehabilitating pipe E for branch pipes, put into the existing main pipe C via the existing branch pipe B, and a flow of water such as water from the upstream to the downstream of the floater Move to manhole (rope passing process).

(3) Collect the floater in the downstream manhole, pull the wire using the pulling rope attached to the floater, and pass the wire through the pulling jig mounted on the bonding machine 410 with the pulling jig (the jig Installation process).
(4) The joining machine 410 with the drawing jig is moved to the planned joining position of the main pipe rehabilitation pipe (jig moving process).

(5) The joining machine 410 with a drawing jig is fixed at the planned joining position of the main pipe rehabilitation pipe (jig fixing process).
(6) Connect the above-mentioned wire to the dedicated water stop plug, move the dedicated water stop plug with wire to the tip of the branch pipe rehabilitation pipe E with the air removed, and use the wire fixing machine 320 to connect the dedicated water stop plug with wire. The wire is fixed to the tip portion of the branch pipe rehabilitation pipe E by expanding the water plug by applying air pressure (wire fixing process).

(7) A wire is attached to the drawing device 310 installed on the manhole (drawing device installation step).
(8) After the branch pipe rehabilitation pipe E is manually inserted into the existing branch pipe B by about 300 mm, the pipe guide device 110 and the rehabilitation pipe insertion machine 120 are attached in the vicinity of the entrance of the drainage basin A Process).

(9) Rehabilitation for branch pipes in the existing branch pipe B by the power of the rehabilitation pipe insertion machine 120 and the pull-in device 310 while watching an image photographed by a photographing device that the worker runs alongside the joining machine 410 with a retraction jig. Tube E is inserted (insertion step). Here, the insertion operation is continued until it can be confirmed that a portion of the flange J of the branch pipe provided at the distal end portion of the branch pipe rehabilitation pipe E has entered the main pipe rehabilitation pipe D.
(10) The air pressure applied to the dedicated water stop plug is dropped by remote operation, the wire is removed from the tip of the branch pipe rehabilitation pipe E, and the dedicated water stop plug with wire is recovered (wire recovery step).

  (11) The camera K is passed through the branch pipe rehabilitation pipe E so that the status of the joining work can be confirmed. Subsequently, the worker performs a joining operation by remotely operating the joining machine 410 with a retracting jig while watching an image taken by the camera K (joining process).

3. Summary As described above, according to the pipe rehabilitation system 400 according to the fifth embodiment, the punching machine 230 that punches the rehabilitation pipe for the main pipe, the pipe guide device 110 that guides the rehabilitation pipe for the branch pipe into the existing branch pipe, and the branch pipe use Rehabilitation pipe insertion machine 120 that pushes rehabilitation pipe E in the back direction, retraction device 310 that draws the tip of rehabilitation pipe E for the branch pipe from the back side, and retraction treatment that joins rehabilitation pipe E for branch pipe to rehabilitation pipe D for main pipe Since the jointed machine 410 is provided, the branch pipe can be rehabilitated relatively easily and safely even when the existing branch pipe is relatively tight, thereby speeding up the operation and reducing the cost. You can plan.
Moreover, as long as no contradiction arises, Embodiments 1-5 can be combined suitably.

  This application is based on Japanese Patent Application No. 2012-112467 filed on May 29, 2012, and Japanese Patent Application No. 2012-134227 filed on June 13, 2012. Is an insistence. The entire contents of the specifications of Japanese Patent Application No. 2012-112467 filed on May 29, 2012 and Japanese Patent Application No. 2012-134227 filed on June 13, 2012 are as follows: Incorporated for reference.

  The pipe guide device, pipe insertion system and pipe rehabilitation system of the present invention can be widely and suitably applied when rehabilitating underground pipes such as main pipes and branch pipes of drain pipes buried in the ground.

DESCRIPTION OF SYMBOLS 1 Drainage channel 2 Upstream manhole 3 Downstream manhole 4 Water stop plug 5 Supply drum 6 Pipe guide apparatus 7 Guide apparatus 8 Winch 9 Pulley 10 Rehabilitation pipe 11 Retraction jig 12 Wire 50 Pipe insertion system 60 Main body frame 60a Front plate 60b Circle Arc-shaped notch 60f Front connection plate 60g Rear connection plate 60h Bracket adjustment hole 61 Guide portion 61a, 61b Bracket 61d Shaft 61e, 61f Guide roller 61g Fixing screw 62 Front fixing portion 62a Front pressing plate 63 Rear fixing portion 63a Rear pressing Plate 64 Adjustment unit 66 Adjustment bolt 100 Pipe insertion system 110 Pipe guide device 111 First guide roller 112 Second guide roller 113 Frame 113a Installation tool 113b Holding tool 113c Holding tool 120 Rehabilitation pipe insertion machine 121a Rubber roller 121 Rubber roller 122 power section 122a switches 123 frame 123a fixture 200 pipe rehabilitation system 230 punches 240 joining machine 300 pipe insertion system 310 retraction device 320 the wire fixing device 330 retracted jig 400 pipe rehabilitation system 410 retracted jig with joining machine

Claims (13)

A pipe guide device for guiding a rehabilitation pipe when inserting a rehabilitation pipe having flexibility into an existing underground pipe,
A guide roller that suppresses displacement to a direction other than the moving direction of the rehabilitation pipe by rotating in contact with the outer peripheral surface of the rehabilitation pipe; and
A rotation axis of the guide roller, and a frame that is fixed in a substantially horizontal state,
In the frame, the position for holding the rotating shaft of the guide roller is variable in the height direction,
The guide roller is
It consists of a pair of parts lined up in the direction of the rotation axis,
The frame is
A displacement adjusting mechanism for displacing the guide roller in the height direction and in the front-rear direction perpendicular to the rotation axis;
Look including a gap adjusting mechanism for adjusting the distance between the pair of components of the guide rollers,
The rehabilitation pipe has an outer diameter of 135 to 435 mm,
The tube guide device , wherein the rehabilitating tube is guided by contacting only the guide roller when the rehabilitating tube is bent corresponding to the outer diameter of the rehabilitating tube . The frame is
A plurality of front plates for guiding various types of rehabilitation tubes are detachably provided at the rehabilitation tube outlet, and each front plate is provided with an arc-shaped notch having a different curvature according to the diameter of the rehabilitation tube to be drawn. The pipe guide device according to claim 1. The displacement adjustment mechanism is
Having adjustment holes arranged in a matrix on the side wall of the frame;
The pipe guide device according to claim 1, wherein a pair of brackets on which a shaft provided with a pair of parts of the guide roller being separated is fixed to any of the adjustment holes. The pair of parts of the guide roller are provided so that they can move on the shaft in a separated state,
The interval adjusting mechanism is
The pipe guide device according to claim 1, further comprising a fixing screw for fixing a pair of parts of the guide roller to an arbitrary position on the shaft. A pipe guide device according to claim 1;
A supply drum winding the rehabilitation pipe;
A pipe insertion system comprising: a retraction device that draws the tip of the rehabilitation pipe from the back side of the underground pipe.   A pipe line rehabilitated using the pipe insertion system according to claim 5. A pipe guide device for guiding a rehabilitation pipe when inserting a rehabilitation pipe having flexibility into an existing underground pipe,
A first guide roller and a second guide roller for suppressing displacement in a direction other than the moving direction of the rehabilitation pipe by rotating in contact with the outer peripheral surface of the rehabilitation pipe;
A frame that fixes the rotation shafts of the first and second guide rollers while being held substantially horizontally, respectively .
In the frame, the position for holding the rotation shaft of the second guide roller is variable in the height direction,
The first and second guide rollers are arranged opposite to each other;
The pipe guide device is installed in a vertical hole provided at the entrance of the branch pipe underground pipe when inserting the branch pipe rehabilitation pipe into the branch pipe underground pipe,
The second guide roller is
It is installed in the vicinity of the angular part so that the rehabilitating pipe for the branch pipe does not come into contact with the angular part on the side close to the entrance of the vertical hole at the boundary between the horizontal hole continuing from the vertical hole and the vertical hole. , Suppressing the deviation in the direction toward the angular portion of the deviation of the branch rehabilitation pipe ,
The branch pipe rehabilitation pipe is inserted into the branch pipe underground pipe by being brought into contact with only the first and second guide rollers and inserted into the branch pipe underground pipe. tube guide device for. A pipe guide device according to claim 7;
An insertion device for sequentially sending the rehabilitation pipe for branch pipes from the tip thereof to the back side of the underground pipe for branch pipes;
The insertion device is
A tube insertion system including an installation tool capable of fixing the insertion device on the frame. A tube insertion system according to claim 8;
A drilling machine for drilling a portion of the main pipe rehabilitation pipe inserted into the main pipe underground pipe,
A pipe rehabilitation system comprising: a joining machine for joining the rehabilitation pipe for branch pipe inserted into the underground pipe for branch pipe to the rehabilitation pipe for main pipe in the planned joining portion.   A pipe line rehabilitated using the pipe rehabilitation system according to claim 9. A pipe guide device according to claim 7;
An insertion device for sequentially feeding the rehabilitating pipe for the branch pipe from the tip thereof toward the back of the underground pipe for the branch pipe;
A retraction device for retracting the distal end of the branch pipe rehabilitation pipe from the back side;
A pipe insertion system comprising: a retraction jig that bends a moving path of a retraction wire used by the retraction device at a distal end portion of the branch pipe underground pipe. A tube insertion system according to claim 11;
A drilling machine for drilling a portion of the main pipe rehabilitation pipe inserted into the main pipe underground pipe,
A joining machine for joining the rehabilitating pipe for the branch pipe inserted into the underground pipe for the branch pipe to the rehabilitating pipe for the main pipe in the planned joining portion;
A pipe rehabilitation system in which the pull-in jig is mounted on the bonding machine.   A pipe line rehabilitated using the pipe rehabilitation system according to claim 12.