JP2003035392A - Pasting equipment of waterstop member used for water stop of regenerating tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pasting equipment capable of precisely pasting a waterstop member on the inside of an established tube. SOLUTION: The pasting equipment 5 of the waterstop member places the waterstop member 4 of a sheet shape on the surface of a pressed plate 51 having a considerably curved elasticity, the pressed plate 51 is carried into the established tube holding it on a bogie truck 52, and the waterstop plate 4 is pasted by pressing the pressed plate 51 at the predermined position on the inside of the established tube. The pressed plate 51 is movably up and down held in the curved state, in which the surface side of the pressed plate 52 is convex, via an ascending and descending means mounted on the bogie truck 52. The ascending and descending means is held so as to tilt the ascent/descent direction of the pressed plate 51 along the inside perimeter of the established pipe.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rehabilitation work for lining an existing pipe buried in the ground with a rehabilitation pipe, particularly for attaching a water blocking member around the connection port between the main pipe and the mounting pipe. The present invention relates to a sticking device.

[0002]

2. Description of the Related Art Generally, when an existing pipeline for sewage or the like buried in the ground is deteriorated, it is possible to reinforce the pipeline by lining the inner surface of the pipeline with a rehabilitation pipe made of resin. Has been done. In particular, when an attachment pipe (branch pipe) is connected to the main pipe of an existing pipe, the connection between the two is often deteriorating due to the effects of ground changes, etc. There is a risk that soil water such as will flow into the main pipe and the amount of water in the main pipe will exceed the allowable amount. That is, as shown by the arrow in FIG. 4, the underground water w flows into the main pipe 1 through a slight gap formed between the main pipe 1 and the mounting pipe 2.

In order to repair such a leaked portion, the applicant of the present invention inserts a rehabilitation pipe made of a thermoplastic resin such as vinyl chloride or high-density polyethylene into an existing pipe line and heats and expands the rehabilitation pipe. The technology to rehabilitate the inner surface of the existing pipeline by putting it in close contact with the inner surface of the pipeline has been put to practical use. In carrying out such rehabilitation work, in particular, at the joint between the main pipe and the mounting pipe, as shown in FIG. 5, for example, a through hole 31 is formed from the inside in the rehabilitating pipe 3A lined inside the main pipe 1, There is a method in which the collar-shaped sleeve 32 is integrally formed with the rehabilitation tube 3A by pushing the peripheral portion of the through hole 31 from the inside of the rehabilitation tube 3A toward the inside of the attachment tube 2. Alternatively, as shown in FIG. 6, after the rehabilitation pipe 3B inserted into the mounting pipe 2 is expanded in the mounting pipe 2, the main pipe 1
The tip portion of the rehabilitation pipe 3B protruding inside is cut off, and the cut end is expanded while being heated and shaped so as to follow the inner surface of the main pipe 1, so that the tip end portion of the rehabilitation pipe 3B has a flange-like flange. There is also a method of molding 33. In this way, rehabilitation pipe 3 (3A,
3B) sleeve 32 and flange 33 formed integrally with
By covering the connecting portion between the main pipe 1 and the mounting pipe 2, it is possible to prevent the underground water w from flowing in from this connecting portion.

[0004]

In the rehabilitation work as described above, the inner surface of the main pipe 1 side at the connecting portion between the main pipe 1 and the mounting pipe 2 (hereinafter, referred to as "around the connection port").
It is desirable to interpose a water tight member having high water tightness between the outer surface of the rehabilitating pipe 3 and the outer surface of the rehabilitation pipe 3 (including the outer surface of the flange 33) to ensure complete water stopping. Such a water blocking member includes
For example, a synthetic rubber material such as butyl rubber formed in a sheet shape is preferable.

However, it is not easy to accurately attach such an adhesive water-blocking member to the periphery of the connection port in a small-diameter conduit that cannot be entered by an operator. In addition, the mounting pipe may be connected to the main pipe not obliquely from above but obliquely above. In such a case, positioning of the water blocking member becomes more difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sticking device capable of sticking a water blocking member around a connection port between a main pipe and a mounting pipe with high accuracy. There is.

[0007]

A watertight member sticking apparatus according to the present invention has a sheet-shaped watertight member placed on the surface of a pressing plate having appropriate bending elasticity, and the pressing plate is mounted on a carriage. A water-stop member configured to be held and carried into an existing pipe, and by pressing the pressing plate against the inner surface of the existing pipe at a predetermined position in the existing pipe to attach the water-stop member to the inner surface of the existing pipe. The sticking device according to claim 1, wherein the pressing plate is held by the lifting support means provided on the carriage so that the pressing plate can be raised and lowered with respect to the carriage in a curved state in which the surface side of the pressing plate is convex, and The supporting means is characterized in that it is held via an angle adjusting means provided on the trolley so that the vertical direction of the pressing plate can be tilted along the inner peripheral direction of the existing pipe. By using such a sticking device, the water blocking member can be easily carried in to the target position in the existing pipe, and the water blocking member is stuck not only directly above the existing pipe but also diagonally above it. be able to.

As a water blocking member used for the rehabilitation work of an existing pipe, a material mainly made of a synthetic rubber adhesive is excellent in water blocking property. Therefore, the surface of the pressing plate is covered with the synthetic rubber water blocking member. It is preferable that a mold release treatment is applied to the member.
According to this configuration, when the pressure plate is pressed against the existing pipe to attach the water blocking member, and then the pressure plate is returned, it is possible to prevent the water blocking member from being separated from the attachment site together with the pressure plate. it can.

The specific construction of the lifting / lowering support means in the sticking apparatus of the present invention is provided with a pantograph type registering tongue in which the link arm expands and contracts in the vertical direction when the distance between the paired base ends is expanded or contracted. The base end portion may be held by the right screw and the left screw formed on a guide bolt that is driven by a motor so as to be moved in opposite directions.

Further, the specific construction of the angle adjusting means in the sticking apparatus of the present invention is such that the base part provided with the elevating and lowering support means and the base part is centered on a rotation axis parallel to the traveling direction of the carriage. And a support member that holds it so that it can be tilted left and right,
It may be provided with a motor or other drive control means which is provided on the carriage and changes the tilt angle of the base portion.

By adopting such a configuration, it is possible to enhance the reliability and economic efficiency in terms of the mechanism.

Further, it is preferable that the carriage in the sticking apparatus of the present invention is provided with a posture fixing means for restraining forward and backward movement and inclination of the carriage when the pressing plate is pressed against the inner surface of the existing pipe. If the pressing direction when pressing the pressing plate against the inner surface of the existing pipe is not directly above but tilted, the carriage that receives the reaction force due to pressing tilts and proper pressure does not act on the pressing plate. However, by providing the carriage with means that can completely fix the posture of the carriage when pressed,
The above problems can be solved.

The concrete structure of the posture fixing means is that elastic members having a cylinder piston mechanism that expands and contracts by fluid pressure are formed upright in front of and behind the traveling direction of the carriage, and the elastic members extend. The carriage can be fixed in the existing pipe in a stretched state by the upper end abutting against the inner surface of the existing pipe.

Further, the pasting device of the present invention is characterized in that a window hole is formed in the center of the pressing plate or in the vicinity thereof, and a positioning camera is attached to the back side of the pressing plate facing the window hole. And According to the present invention, by remotely monitoring the camera through the window, it becomes possible to accurately position the carriage and adjust the vertical direction of the pressing plate.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<Water stopping member> Prior to the explanation of the sticking device,
Fig. 1 is a structural example of a water blocking member used for water blocking work on a rehabilitation pipe.
Shown in. The water blocking member 4 shown as an example has a cloth-like or porous sheet-like body 41 having an appropriate elasticity as a core material, and a synthetic rubber-based adhesive material 42 as a main material on one or both sides thereof, and has a substantially uniform thickness. It is the one that has been attached. As the core material, for example, a non-woven fabric made of PET (polyethylene terephthalate) fiber, a sheet-like body 41 made of synthetic resin such as polyethylene, polypropylene or the like, a synthetic resin film formed with a large number of holes, or the like can be used. it can. As the synthetic rubber-based adhesive material 42, butyl rubber, polyisobutylene, styrene-butadiene rubber, polychloroprene (neoprene) rubber, nitrile rubber, or other synthetic rubber in a highly viscous solution is used. be able to. These synthetic rubbers are excellent in corrosion resistance, spreadability, adhesiveness, etc., but when they are made into a solution, the shape-retaining power of themselves decreases and they drop or sag under their own weight. It is easy to maintain the sheet-like shape by attaching it to the.

Although the planar shape of the water blocking member 4 is not particularly limited, in this embodiment, the water blocking member 4 is formed in a circular shape in order to stop water around the connection port of the mounting pipe in an annular shape, and the center thereof is provided. Is a round hole 43 of approximately the same size as the inner diameter of the mounting pipe.
Are formed.

The inner surface of the existing pipe to which the water blocking member 4 is attached is often wet due to water leakage or the like, but the synthetic rubber adhesive material 42 such as butyl rubber has an adhesive force when the surface is wet with water. Since it lowers, it is preferable to apply a water-curable resin to the surface and use it before carrying it into the existing pipe.

<Pasting Device> FIGS. 2 and 3 show an embodiment of a pasting device which carries in the water blocking member 4 as described above into an existing pipe and sticks it at a predetermined position. In this embodiment, in the case where the water blocking member 4 is attached to the periphery of the connection port on the main pipe 1 side at the connecting portion between the main pipe 1 and the mounting pipe 2 of the existing pipe as shown in FIG. Will be described as an example.

In this sticking device 5, a pressing plate 51 for holding the water blocking member 4 is mounted on a carriage 52 which can move in the main pipe 1 via a lifting support means and an angle adjusting means. It is held so that it can be raised and lowered with respect to the carriage 52 and that the raising and lowering direction can be tilted along the inner peripheral direction of the main pipe 1.

The dolly 52 is formed so that its bottom portion extends along the inner surface of the main pipe 1. Near the four corners of the bottom portion, substantially hemispherical leg portions 53 made of a material such as resin or metal that easily slips on the inner surface of the main pipe 1 are attached. This dolly 52
Moves to a predetermined location of the main pipe 1 (in this example, around the connection port of the mounting pipe 2) by traction guidance with a wire or the like or through an appropriate self-propelled means.

A pair of support members 54 are provided upright in front of and behind the carriage 52 so as to face each other. A shaft member 55 and a bearing member 56 are attached to the upper portions of the front and rear support members 54 so that their front and rear axes coincide with each other, thereby forming a rotary shaft parallel to the traveling direction of the carriage 52. .
A base 57 is attached to the rotary shaft in a suspended state. The base portion 57 includes an oscillating member 58 attached to the front and rear shaft members 55, respectively, and an oscillating member 58 in the front and rear.
Is formed by a pair of left and right connecting rods 59 that connect the
It is held so as to be tiltable to the left and right with respect to the traveling direction around the rotation axis. A motor 60 for changing the tilt angle of the base 57 is attached to one of the front and rear ends of the carriage 52, and the drive shaft of the motor 60 is coupled to one shaft member 55. This motor 60
Are artificially controlled from outside the main body 1. The front and rear supporting members 54, the base 57 and the motor 60 constitute an angle adjusting means.

Pantograph-type registration tongues 61 are attached to the front and rear of the base 57, respectively. The registration tongue 61 is a mechanism that has been conventionally used for a pantograph of a train, a retractable magic hand, and the like, and has a plurality of link arms 62 that are hinged to intersect with each other in a rhombus shape, and form a pair of base end portions. When the interval of 63 is expanded or contracted, the crossing angle of the link arm 62 changes and the entire length expands or contracts. The registering tongues 61 used in the sticking device 5 are provided so as to form a pair of right and left in front of and behind the base 57 with the extension direction facing upward. The respective base end portions 63 are integrally connected to each other in the width direction of the base portion 57 via elongated base end connecting members 64. Each base end connecting member 64 has a pair of left and right connecting rod insertion holes 65, and the left and right connecting rods 5 that form the base 57 in these connecting rod insertion holes 65.
9 are inserted respectively.

Further, a female screw hole 67 is formed at the center of the base end connecting member 64 in the width direction, and a guide bolt 68 provided at the center of the base 57 in the width direction is formed in the female screw hole 67. It is screwed. The guide bolt 68 has a base 57.
Is arranged between the rocking members 58 before and after forming the gear 6
It is configured to be rotated by receiving a driving force of a motor 71 placed substantially in the center of the base portion 57 via 9, 70.
Also, near both ends of the guide bolt 68. Male screws corresponding to the female screws formed on the base end connecting member 64 are formed respectively. The female screw and the male screw are respectively the left screw 72 and the right screw 7 with respect to the pair of base end portions 63.
It is 3. Therefore, when the guide boll rotates, the base end connecting member 64 screwed to the guide boll moves in the opposite directions so as to expand or contract the interval between the base end portions 63 of the respective resisting portions 61. The lifting tongue 61, the base end connecting member 64, the guide bolt 68, and the motor 71 form an up-and-down supporting means.

A cover member 74 is formed at the upper end of the registration tongue 61 to cover the left and right registration tongues 61.
Is attached. A pressure plate support arm 75 is attached to the side surface of the cover member 74 so as to project obliquely upward and to the left and right with respect to the traveling direction of the carriage 52. Both ends of the pressing plate support arm 75 are hinged to the side surface of the cover member 74 and the four corners of the rear surface of the pressing plate 51.

The pressing plate 51 is formed of a metal plate or a resin plate having an appropriate bending elasticity, and is held by the pressing plate support arm 75 in a curved state so that the front surface side is convex. The pressing plate 51 is shaped so that the bending radius in the normal state is smaller than the inner radius of the main pipe 1. The surface of the pressing plate 51 is subjected to a mold release treatment so that the synthetic rubber-based adhesive material 42 forming the water blocking member 4 can be detachably held.

The elevating and supporting means operates to operate the cover member 7.
When 4 rises, the cover member 74 presses the pressing plate 51 against the inner surface of the main pipe 1 via the pressing plate supporting arm 75.
Then, the pressing plate 51 first contacts the inner surface of the main pipe 1 from the vicinity of the center thereof. When the cover member 74 further rises,
The pressing plate support arms 75 that have received a reaction force from the inner surface of the main pipe 1 are rotated so that the mutual angles become close to horizontal, and the pressing plate 5 is rotated.
Enlarge the radius of curvature of 1. As a result, the pressing plate 51 is gradually pressed against the inner surface of the main pipe 1 from the vicinity of the center to both side edges. Further, when the elevating and supporting means operates in the opposite direction to lower the cover member 74, the pressing plate 5
1 is gradually separated from the main pipe 1 toward the vicinity of the center while reducing the diameter of the curvature pipe by its elasticity. By such a raising / lowering operation of the pressing plate 51, the sticky sheet-like water blocking member 4 can be accurately attached to the main pipe 1 without leaving bubbles between the main pipe 1 and the main pipe 1. .

A round window hole 76 is formed near the center of the pressing plate 51. A camera 77 for positioning is attached to the rear surface side of the pressing plate 51 (upper part of the motor in this example) facing the window hole 76. By monitoring the inner surface of the upper part of the main pipe 1 with this camera 77 through the round hole 43 formed in the water blocking member 4 and the window hole 76 formed in the pressing plate 51, the pressing plate 51 is connected to the connection port of the mounting pipe 2. It is possible to adjust the position of the carriage 52 and the up-down direction of the pressing plate 51 so that it is located immediately below.

Further, the sticking device 5 of the water blocking member 4 includes:
A posture fixing means for fixing the carriage 52 when the pressing plate 51 is pressed against the inner surface of the main pipe 1 is provided. This attitude restraining means uses the pressing plate 51 for the main pipe 1 when the mounting pipe 2 connected to the main pipe 1 is open not obliquely above the main pipe 1 but obliquely upward.
The trolley 52 is driven by the reaction force when it is pressed diagonally upward with respect to
Are provided in order to prevent an inclination of the main body 1 in the main body 1.

The attitude restraining means is formed by a telescopic member 78 provided upright in front of and behind the carriage 52. Elastic member 78
Is a cylinder piston mechanism that expands and contracts due to fluid pressure such as air pressure, gas pressure, and hydraulic pressure.
In each of the front and rear parts, two elastic members 78 are provided so as to form a pair on the left and right. The cylinder portion 79 of the expansion / contraction member 78 is fixed to the dolly 52 in a stationary state, and the piston rod portion 80 is projected and retracted in the vertical direction from the cylinder portion 79. At the upper end of the piston rod 80,
An abutting member 81 is attached so as to integrally connect the left and right piston rod portions 80. The surface of the abutting member 81 is formed so as to exert an appropriate frictional force with the inner surface of the main pipe 1. After the carriage 52 is positioned at a predetermined position through the positioning camera 77 described above, the elastic member 78 is extended by an artificial operation from the outside, and the abutting member 81 is abutted against the inner surface of the main pipe 1.
Then, the carriage 52 is fixed in the main pipe 1 in a stretched state, and the work of attaching the water blocking member 4 obliquely above the main pipe 1 can be performed accurately.

[0031]

In the sticking device of the water blocking member of the present invention, the pressing plate for pushing the water blocking member toward the inner surface of the existing pipe is held on the trolley via the elevating and supporting means and the angle adjusting means. Therefore, the water blocking member can be easily carried to the target position in the existing pipe, and the water blocking member can be accurately attached not only to the position immediately above the existing pipe but also to the position diagonally above.

Further, by providing a posture restraining means for fixing the dolly in the existing pipe in this pasting device, the pasting work can be carried out more reliably, particularly in the obliquely upper direction.

Further, in this sticking apparatus, a window hole is formed near the center of the pressing plate, and a positioning camera is attached to the rear surface side of the pressing plate facing the window hole to position the carriage and raise and lower the pressing plate. It becomes possible to adjust the direction with high accuracy.

By using the sticking device of the water blocking member having such a function, particularly in the rehabilitation work of the existing pipeline, even in a portion where water leakage is likely to occur, such as a connecting portion between the main pipe and the mounting pipe, It is possible to stop water completely.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a configuration example of a water blocking member used in the present invention.

FIG. 2 is an explanatory diagram showing a cross-sectional configuration in the tube axis direction of the sticking device according to the embodiment of the present invention.

3A and 3B are explanatory views showing a cross-sectional configuration in the width direction of the sticking device according to the embodiment of the present invention, where FIG. 3A shows a state where the pressing plate is raised and FIG. 3B shows a state where the pressing plate is lowered. Shown respectively.

FIG. 4 is a cross-sectional view illustrating inflow of soil water into an existing pipe.

FIG. 5 is a cross-sectional view showing an example of work for rehabilitating a joint portion between a main pipe and an attachment pipe of an existing pipeline.

FIG. 6 is a cross-sectional view showing another example of the work of rehabilitating the joint between the main pipe and the mounting pipe of the existing pipeline.

[Explanation of symbols]

1 Main of existing pipe 2 Installation pipes for existing pipes 4 Water stop member 51 pressing plate 52 dolly 54 Supporting member 57 base 60 motor 61 Regent 63 base end 68 Guide bolt 71 motor 72 left screw 73 right screw 76 window 77 camera 78 Elastic member

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3H025 EA01 EA03 EB01 EB04 EB22                       EB23 EC01 EC11 ED02 EE01                 4F211 AA45 AD12 AG03 AG08 AH43                       SA17 SC03 SD01 SH18 SH19                       SJ01 SJ13 SJ22 SJ29 SN10                       SP02 SP03

Claims (7)

[Claims] 1. A sheet-shaped water stopping member is placed on the surface of a pressing plate having an appropriate bending elasticity, the pressing plate is held on a carriage and carried into an existing pipe, and at a predetermined position in the existing pipe. A sticking device of a water blocking member configured to stick a water blocking member to the inner surface of an existing pipe by pressing the pressing plate against the inner surface of the existing pipe, wherein the pressing plate is on a carriage. Through the elevator support means provided, while being held up and down freely with respect to the carriage in a curved state in which the surface side of the pressing plate is convex, the elevator support means, via the angle adjusting means provided on the carriage, A sticking device for a water stop member, characterized in that the sticking device is held so that the up-and-down direction of a pressing plate can be tilted along the inner peripheral direction of an existing pipe. 2. The water blocking member is formed of a synthetic rubber-based adhesive material as a main material, and the surface of the pressing plate is subjected to a mold release treatment with respect to the synthetic rubber type water blocking member. The sticking device of the water blocking member according to claim 1. 3. The elevating and supporting means includes a pantograph-type registering to which the link arm expands and contracts in the vertical direction when the distance between the paired base ends is expanded and contracted, and the base end of this register ton is rotated by driving a motor. The sticking device of the water blocking member according to claim 1 or 2, which is held by being guided by right and left screws formed on the guide bolt so as to move in opposite directions. 4. The angle adjusting means includes a base portion provided with a lifting support means, and a support for holding the base portion so that the base portion can be tilted left and right about a rotation axis parallel to the traveling direction of the carriage. 4. A sticking device for a water blocking member according to claim 1, 2 or 3, further comprising: a member, and a drive control means, such as a motor, which is provided on the carriage to change a tilt angle of the base portion. . 5. The posture fixing means for restraining the forward and backward movement and inclination of the carriage when the pressing plate is pressed against the inner surface of the existing pipe is provided on the carriage. The water-sealing member sticking device according to [4]. 6. The posture fixing means is formed by vertically arranging elastic members having a cylinder piston mechanism that expands and contracts by fluid pressure, respectively, in front of and behind the traveling direction of the trolley, and the elastic members extend and the upper end portion is an existing pipe. By hitting the inner surface of
The sticking device of the water blocking member according to claim 5, wherein the dolly is fixed in the existing pipe in a stretched state. 7. A pressing hole is formed in the center of the pressing plate or in the vicinity thereof, and a positioning camera is attached to the back surface side of the pressing plate facing the window hole. A sticking device for a water blocking member according to any one of 1.