JP2004092818A - In-pipe mending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain production costs by reducing failures in an in-pipe mending machine for mending a branch pipe such as a concrete swage pipe from its inside. <P>SOLUTION: A wheel 3 is attached to a machine body 2, and a cylindrical casing 5 is installed to the machine body 2 rotatably in its perimeter direction. A notch part 5a is formed to the casing 5, and a translucent sleeve 15 is stretchably adhered to the outer periphery of the casing 5, in a fashion that a cap part 15a can be fitted to the notch part 5a of the casing 5. A stretchable photo-curing type mending sheet 16 is detachably adhered to the outside of the translucent sleeve 15, in a fashion that one part thereof is adhered to the cap part 15a of the translucent sleeve 15. A feeding and exhausting means capable of supplying air is installed in the casing 5, and a pair of fluorescent lamp 13 are installed in the casing 5 retreatably in a pipe central direction of the casing 5. At the time of mending the branch pipe 20, this in-pipe mending machine 1 is installed at a predetermined position in the branch pipe 20, and the air is supplied in the casing 5, so that the fluorescent lamp 13 is lit up. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an in-pipe repair machine for repairing a concrete sewer pipe or other branch pipe in which a small-diameter cylindrical branch pipe is integrally connected to a large-diameter cylindrical main pipe from the inner surface thereof.
[0002]
[Prior art]
Conventionally, in this type of in-pipe repair machine, a branch sleeve is provided in the center of a cylindrical rubber sleeve so as to expand and contract in the direction of the branch, and at the time of repair, the rubber sleeve and the branch sleeve are inflated with air. The repair material wound around its outer periphery is pressed against the inner circumferential surface of the main pipe and the branch pipe, and the thermosetting adherend applied to the outer surface of the repair material is heated and thermoset to cure the repair material. It was fixed to the inner peripheral surfaces of the main pipe and the branch pipe (for example, see Patent Documents 1 and 2).
[0003]
[Patent Document 1] JP-A-10-38182 (paragraphs [0015] and [0033], FIG. 2)
[Patent Document 2] JP-A-10-68493 (paragraphs [0015] and [0034], FIG. 2)
[0004]
[Problems to be solved by the invention]
However, this has the following disadvantages.
[0005]
First, since the manifold sleeve must be built in the rubber sleeve so as to be extendable and contractible, the in-pipe repair machine is inevitably structurally complicated, and a failure is likely to occur. Second, since heat is stored in the pipe during repair, expensive components having heat resistance must be used as components of the pipe repair machine, and the manufacturing cost of the pipe repair machine rises.
[0006]
In view of such circumstances, the present invention provides an in-pipe repair machine capable of reducing the occurrence of failures by simplifying the structure and reducing the manufacturing cost using versatile components. With the goal.
[0007]
[Means for Solving the Problems]
First, the invention according to claim 1 of the present invention has a body (2), a wheel (3) is attached to the body, and a cylindrical casing (5) is rotatable in the circumferential direction on the body. And a notch (5a) is formed in the casing, and a translucent sleeve (15) is extended and contracted on the outer peripheral surface of the casing so that the cap (15a) can be depressed in the notch of the casing. A flexible photo-curable repair sheet (16) is removably attached to the outside of the light-transmissive sleeve in such a manner that a part of the light-curable repair sheet (16) is attached to the hat of the light-transmissive sleeve. A supply / exhaust means capable of supplying air is provided in the casing, and a light emitting means (13) is provided in the casing. Here, a compressor can be mentioned as a typical example of the air supply / exhaust means, and a fluorescent lamp can be mentioned as a typical example of the light emitting means.
[0008]
By adopting such a configuration, when the inner surface of the branch pipe (20) is repaired, air is supplied into the casing using the air supply / exhaust means with the pipe repair machine (1) installed at a predetermined position in the branch pipe. The cap portion of the translucent sleeve changes from the concave state to the convex state alone, and the light-curing repair sheet adheres to the main pipe (20a) and the branch pipe (20b) of the branch pipe, and the Since the mold repair sheet is used, it works so that it is not necessary to use expensive components having heat resistance.
[0009]
In the invention according to a second aspect of the present invention, as the light emitting means, a pair of fluorescent lamps (13) is moved forward and backward between a central portion of the casing (5) and both left and right ends in a tube direction of the casing. It is configured by adopting a freely provided one. With this configuration, when the pair of fluorescent lamps emit light in a state of being brought to the center of the casing, light is uniformly emitted from the light emitting unit to the photocurable repair sheet, and the hat of the translucent sleeve is changed from the convex state. When returning to the concave state, the light emitting means acts so as not to disturb.
[0010]
It should be noted that reference numerals in parentheses are for convenience showing corresponding elements in the drawings, and therefore, the present invention is not limited to the description in the drawings. This is the same for the column of “Claims”.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing an embodiment of an in-pipe repair machine according to the present invention, in which (a) is a front sectional view, (b) is a left side view, (c) is a right side view,
2A and 2B are front sectional views showing a use state of the in-pipe repair machine shown in FIG. 1, wherein FIG. 2A is a state diagram at the start of air injection, and FIG.
[0012]
As shown in FIG. 1, the in-pipe repair machine 1 has a cylindrical body 2, and two wheels 3 are mounted on both left and right sides of the body 2. A cylindrical casing 5 is supported on the body 2 so as to be rotatable in the circumferential direction (the directions of arrows M and N), and a circular cutout 5 a is formed at the upper center of the casing 5. It is formed in such a way that it communicates inside and outside. A translucent sleeve 15 made of transparent silicone rubber is attached to the outer peripheral surface of the casing 5 so as to be stretchable, and a cap portion 15a is provided at a central upper portion of the translucent sleeve 15 with a cutout portion 5a of the casing 5. It is formed in a shape that can be depressed. On the outside of the translucent sleeve 15, a stretchable photo-curable repair sheet 16 made of a synthetic resin is detachably attached. Attached to the hat portion 15a. Further, an air coupler 8 is mounted on the body 2, and air supply / exhaust means (not shown) such as a compressor is connected to the air coupler 8 in a form capable of supplying air (compressed air) into the casing 5.
[0013]
Further, a pair of fluorescent lamps 13, 13 as light emitting means are provided in the casing 5 between the center part of the casing 5 and both right and left ends so as to be able to advance and retreat in the directions of arrows A and B, that is, in the core direction of the casing 5. ing. That is, disk-shaped plates 7 are fixed to both left and right ends of the body 2, and a socket base 9 is attached to each plate 7 so as to be movable in the directions of arrows A and B along the guide bar 10. . An air cylinder 12 is attached to each socket base 9, and an air coupler 14 is connected to these air cylinders 12. Further, air supply / exhaust means (not shown) such as a compressor is connected to the air coupler 14 so that air can be supplied to each air cylinder 12. Therefore, by supplying air to each air cylinder 12, as shown in FIG. 2, the pair of fluorescent lamps 13, 13 can be moved forward together with the socket base 9 in the direction of arrow A and brought to the center of the casing 5. In addition, by sucking air from each air cylinder 12, the pair of fluorescent lamps 13, 13 is retracted together with the socket base 9 in the direction of arrow B as shown in FIG. be able to.
[0014]
Since the in-pipe repair machine 1 has the above configuration, the following procedure is used to repair the branch pipe 20 buried underground from the inner surface thereof.
[0015]
First, as shown in FIG. 1, with the photocurable repair sheet 16 wrapped around the translucent sleeve 15 of the in-pipe repair machine 1, the in-pipe repair machine 1 is moved from the manhole (not shown) into the branch pipe 20. After the installation, transfer to the repair location. At this time, since the hat portion 15a of the translucent sleeve 15 is depressed in the notch portion 5a of the casing 5, the transfer operation of the in-pipe repair machine 1 is performed smoothly without the cap portion 15a being caught by the branch pipe 20. .
[0016]
Next, the casing 5 is rotated in the direction of the arrow M or N with respect to the body 2 to position the cap 15a of the light-transmitting sleeve 15 so as to face the branch pipe 20b of the branch pipe 20, and in this state, Air is supplied into the casing 5. Then, as shown in FIG. 2A, the cap portion 15a of the translucent sleeve 15 which has been depressed in the cutout portion 5a of the casing 5 expands upward, that is, toward the branch pipe 20b side of the branch pipe 20. Protrude into. Further, as shown in FIG. 2 (b), the translucent sleeve 15 expands as a whole, and the cap portion 15a is pressed against the inner surface of the branch pipe 20b of the branch pipe 20, and at the same time, the other parts are branched pipes. 20 is pressed against the inner surface of the main pipe 20a. As a result, the photocurable repair sheet 16 comes into close contact with the main pipe 20a and the branch pipe 20b of the branch pipe 20.
[0017]
Here, the pair of fluorescent lamps 13 and 13 are turned on to emit light, and are advanced in the direction of arrow A to approach the center of the casing 5. Then, since the light emitted from the fluorescent lamps 13 and 13 is transmitted through the translucent sleeve 15 and is irradiated on the photocurable repair sheet 16, the photocurable repair sheet 16 undergoes a chemical reaction and is cured. At this time, since the pair of fluorescent lamps 13 and 13 are located closer to the center of the casing 5, light is uniformly applied to the entire photocurable repair sheet 16.
[0018]
When the photocurable repair sheet 16 is thus cured while being in close contact with the main pipe 20a and the branch pipe 20b of the branch pipe 20, the pair of fluorescent lamps 13 and 13 are turned off, and the pair of fluorescent lamps 13 is retracted in the direction of arrow B so that the right and left of the casing 5 Retract to both ends.
[0019]
Thereafter, air is sucked from the casing 5. Then, since the translucent sleeve 15 which has been pressed against the inner surface of the branch pipe 20 is contracted, the cap portion 15a is depressed and depressed into the cutout portion 5a of the casing 5, and at the same time, the other portion becomes the outer periphery of the casing 5. Return to the state of being wrapped around the surface. At this time, since the pair of fluorescent lamps 13, 13 are retracted at the left and right end portions of the casing 5, the hat portion 15 a can be recessed without being disturbed by the fluorescent lamps 13, 13.
[0020]
Finally, the in-pipe repair machine 1 is pulled out from the branch pipe 20. Also at this time, since the cap portion 15a of the translucent sleeve 15 is depressed in the notch portion 5a of the casing 5, the pull-out operation of the in-pipe repair machine 1 can be smoothly performed without the cap portion 15a being caught by the branch pipe 20. Is Here, the repair work of the branch pipe 20 is completed.
[0021]
In the above embodiment, the case where the fluorescent lamp 13 is used as the light emitting unit has been described. However, a light emitting unit other than the fluorescent lamp 13, for example, a halogen lamp or a light emitting diode can be used instead.
[0022]
Further, in the above-described embodiment, the in-pipe repair machine 1 including the cylindrical casing 5 has been described. However, the shape of the casing 5 is not limited to the cylindrical shape, and may be a rectangular cylinder such as a hexagonal cylinder or an octagonal cylinder. The casing 5 may be employed.
[0023]
【The invention's effect】
As described above, according to the first aspect of the present invention, when repairing the inner surface of a branch pipe, the casing is provided by using the air supply / exhaust means in a state where the pipe repair machine is installed at a predetermined position in the branch pipe. By simply supplying air into the inside, the hat of the translucent sleeve changes from a concave state to a convex state, with which the light-curing repair sheet adheres to the main and branch pipes of the branch pipe, and The use of mold repair sheets eliminates the need to use expensive heat-resistant components, so reducing the number of failures by simplifying the structure and using versatile components An in-pipe repair machine capable of reducing manufacturing costs can be provided.
[0024]
Further, according to the invention according to claim 2 of the present invention, when the pair of fluorescent lamps emit light in a state of being brought close to the center of the casing, the light is uniformly emitted from the light emitting unit to the photocurable repair sheet. Since the light emitting means does not hinder when the hat portion of the translucent sleeve returns from the convex state to the concave state, it is possible to provide an in-pipe repair machine capable of smoothly performing the inner surface repair of the branch pipe.
[Brief description of the drawings]
FIG. 1 is a view showing an embodiment of an in-pipe repair machine according to the present invention, in which (a) is a front sectional view, (b) is a left side view, and (c) is a right side view. .
FIGS. 2A and 2B are front sectional views showing a use state of the in-pipe repair machine shown in FIG. 1, wherein FIG. 2A is a state diagram at the start of air injection, and FIG.
[Explanation of symbols]
1 ... in-pipe repair machine 2 ... body 3 ... wheels 5 ... casing 5a ... notch 13 ... fluorescent light (light emitting means)
15 Translucent sleeve 15a Cap 16 Photocurable repair sheet 20 Branch pipe 20a Main pipe 20b Manifold

Claims (2)

Having a fuselage (2),
Attach the wheels (3) to this aircraft,
A cylindrical casing (5) is provided on the body so as to be rotatable in a circumferential direction thereof,
A notch (5a) is formed in this casing,
A translucent sleeve (15) is attached to the outer peripheral surface of the casing so as to be extendable and retractable such that the hat portion (15a) can be depressed in a cutout portion of the casing.
A stretchable light-curable repair sheet (16) is detachably attached to the outside of the light-transmissive sleeve such that a part of the light-curing repair sheet (16) is attached to a hat portion of the light-transmissive sleeve,
A supply / exhaust means capable of supplying air is provided in the casing,
An in-pipe repair machine, wherein a light emitting means (13) is provided inside the casing. As a light emitting means,
2. The device according to claim 1, wherein a pair of fluorescent lamps (13) are provided between a central portion of the casing (5) and left and right ends so as to be able to advance and retreat in a tube direction of the casing. 3. In-pipe repair machine.

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