JPH1068494A - Repairing machine for inside of tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily find a precise position and facilitate operation by providing a mark for aligning a sight on a target to be repaired on an objective lens side of a monitor camera. SOLUTION: A window glass 55 is installed on a tip of a sleeve 11 of a branch pipe, and a monitor camera unit to align a sight on a target to be repaired of the branch pipe to be repaired is installed inside the window glass 55. A cross mark 56 to align a sight on the target to be repaired is given on the window market 55 so that the image of the mark is picked up. A halogen lamp to illuminate the outside is mounted close to the monitor camera unit through the window glass 55. The sleeve 11 for the branch pipe presses a repairing material which is wound and temporarily stopped against an inner circumferential surface of the branch pipe, and expanded in the radial direction of the branch pipe, and is of bellows shape so as to be expandable in the longitudinal direction of the branch pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an in-pipe repair machine capable of repairing pipes such as sewers buried underground from inside.

[0002]

2. Description of the Related Art Conventionally, ceramic pipes, concrete fume pipes, and PVC pipes made of synthetic resin have been used for pipes such as sewer main pipes buried underground, but these pipes are aging. Cracking, breakage, and separation of joints will occur due to cracking, subsidence of ground, and fluctuations in ground pressure.

[0003] When repairing such a faulty part, for example, using an elastic repairing material obtained by laminating a glass cloth and a nonwoven fabric, the repairing material is wound around the pipe, and the in-pipe repairing machine is temporarily fixed to the pipe from the manhole. A repair construction method called the FRP method has been developed, in which the adhesive is applied to the inner peripheral surface of the failed part using an adhesive.

FIG. 9 shows an external view of a conventional in-pipe repair machine.

[0005] The in-pipe repair machine 101 is provided at both ends of an elastic cylindrical rubber sleeve 102 with respect to a holding mechanism (not shown) fixed to front and rear ends of a connecting member (not shown) provided in the longitudinal direction of the inside. Is fixed. A heater (not shown) is provided inside the rubber sleeve 102, and running wheels 103 which can support the machine body are provided below the holding mechanism.
Is provided. In addition, the front and rear holding mechanisms include a traction fitting 105.
Is provided.

When such an in-pipe repair machine 101 is used, a repair material (not shown) is wound around the outer periphery of the rubber sleeve 102, and the rubber sleeve 102 is inserted into the pipe in a contracted state. Running wheels 103,
103 is brought into contact with the inner bottom surface of the pipe, and the wire 107 connected to the traction fitting 105 is pulled from the ground in a desired direction, whereby the in-pipe repair machine 101 is moved to the failure location of the pipe.

Then, air is supplied to the rubber sleeve 102 from the ground to inflate the entire rubber sleeve 102, press the repair material against the inner peripheral surface of the pipe, and transmit power to the heater. Is heated, whereby the thermosetting adhesive applied to the outer surface of the repair material is thermally cured to fix the repair material on the inner peripheral surface of the pipe, thereby performing repair.

[0008] The rubber sleeve 102 has a substantially circular cross section, and is used to repair the boundary between the rubber sleeve 102 and the manifold.
Having a branch. The manifold sleeve 109 expands and contracts both in the direction of the manifold and in the radial direction of the manifold.

[0009] A monitor camera (not shown) is built in the manifold sleeve 109.
Shoot the outside from the tip of. Thereby, the branch which is the repair target can be aimed at. The photographed tube 110 and manifold 111 (see FIG. 10) are, for example, a ground monitor TV.
The operation is performed by the operator, and the in-pipe repair machine is operated.

[0010]

In order for the repair to be performed successfully, the expansion of the manifold sleeve 109 must be performed with the center of the manifold sleeve 109 positioned exactly at the center of the manifold 111. . Otherwise, when the inflated manifold sleeve 109 presses against the inside of the manifold 111, a biased press contact is performed.

However, the tube 110 and the branch 11 transmitted from the monitor camera and photographed on the monitor TV
1 (see FIG. 10) and the like.
It is often difficult to know exactly where the center of 9 is located, and thus it may be difficult to operate the in-pipe repair machine 101.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the present invention has been made to
It is an object of the present invention to provide an in-pipe repair machine that makes it easy to understand exactly where the center of the manifold sleeve is located, and thus makes it easier to operate the in-pipe repair machine.

[0013]

In order to achieve the above object, an invention according to claim 1 comprises an elastic rubber sleeve for temporarily fixing a repair material having a thermosetting adhesive applied to an outer surface thereof. A pair of holding mechanisms for holding both ends of the rubber sleeve in a sealed state, a connecting member for connecting the pair of holding mechanisms inside the rubber sleeve, and a rubber heater provided close to the inside of the rubber sleeve, An air coupler provided on one holding mechanism for guiding air for inflating the rubber sleeve, a socket provided on one holding mechanism for supplying power to the rubber heater, and a monitor camera for photographing the inside of the tube. In the in-pipe repair machine, the monitor camera has a mark on the objective lens side for aiming at a repair target.

According to a second aspect of the present invention, the rubber sleeve has a branch sleeve that extends and contracts in the direction of the branch, and a monitor camera is provided on the branch sleeve.
2. The in-pipe repair machine according to claim 1, wherein the in-pipe repair machine is a cross.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An in-pipe repair machine according to an embodiment of the present invention will be described below with reference to FIGS.

The rubber sleeve 3 provided on the outermost periphery of the body 1 of the in-pipe repair machine has a cylindrical shape, has elasticity,
Expansion and contraction can be performed by injecting air or the like. The rubber sleeve 3 is for temporarily fixing a repair material (not shown) by winding the same, and a thermosetting adhesive is applied to an outer surface of the repair material. The outer cross section of the rubber sleeve 3 is circular.

The in-pipe repair machine 1 repairs the boundary between the main pipe 7 of the sewer and the branch pipe 9 as shown in FIG. A manifold sleeve 11 that expands and contracts in the direction is provided in a branched manner.

Both ends of the rubber sleeve 3 are held in a sealed state by a pair of holding mechanisms 13. These holding mechanisms 13 are connected by a connecting member 15. This connecting member 15 is arranged inside the rubber sleeve 3. A rubber heater 17 (indicated by a two-dot chain line) is close to the inside of the rubber sleeve 3 (in the figure, outside the rubber sleeve 3 but actually inside) at the longitudinal center of the connecting member 15. (Actually, the heater spring 19 and the rubber heater 17 are connected to each other by the rubber sleeve 3.
Is inflated from the illustrated state).

Each holding mechanism 13 has a holding member 21 for holding the end of the rubber sleeve 3 in a sealed state. That is, the holding member 21 has a short columnar shape, the end of the rubber sleeve 3 is covered on the outer periphery, stopped by the wrap 23, then folded once, and the cap-shaped rubber retainer 25 is covered from above, and the bolt is 27, the holding member 2
Stopped at 1.

The holding member 2 of one of the holding mechanisms 13
1 (right side in FIG. 1, FIG. 3) is provided with a rotating shaft 29 therethrough. This penetration is performed in an airtight manner, and the rotating shaft 29 is rotatable and also serves as a pipe through which air for expanding the rubber sleeve 3 passes. A flange portion 31 is formed at the penetrating tip side of the rotary shaft 29, that is, at the right end in the drawing.
Further, a donut-shaped disk 33 is fixed by bolts 34, and an air coupler 35 is attached to the disk 33 by bolts 37.
Installed with. The air coupler 35 is provided with an air guide port 39 for guiding air, and faces the outside port of the rotary shaft 29 also serving as the pipe. The air coupler 35 is provided with a socket 41 for supplying electricity to the rubber heater 17 and a motor to be described later.

A cover 36 is attached to the air coupler 35 with bolts 36A. Cover 36
Has a bullet shape tapered toward the outside of the end of the fuselage 1, which facilitates traveling.

The traveling wheels 45 and U are attached to the disc 33 via a member 43 attached by bolts 42.
A shackle 47 is provided. The U shackle 47 locks a wire or the like (not shown) for towing.

In the one holding mechanism 13 (right side in FIG. 1), the rotating shaft 29 and the disk 33 held in a penetrating state by the holding member 21 are fixed, and the traveling wheel 45 is mounted on the disk 33. In the other holding mechanism 13 (left side in FIG. 1), a self-propelled device 49 rotatably connected to a rotation shaft 48 protruding from a boss 21A formed on the holding member 21 is fixed. On the side, the drive wheels 50 are attached to the self-propelled device 49.

The self-propelled device 49 includes a bullet-shaped cover 36.
Are attached by bolts 36A.

The rotating shaft 27 is held by the holding member 21 through bearings in a penetrating state, and a gear 51 is provided concentrically at an end on the inner side of the body 1.
Is rotatable by a motor 53 that meshes with the motor.

As shown in FIG.
A window glass 55 is provided at the tip of the monitor glass unit 55. Inside the window glass 55, a monitor camera unit 57 (FIG. 4) for positioning the branch 9 to be repaired (see FIG. 1) at a repair target is provided. Provided. The monitor camera unit 57 uses a color CCD image sensor, and a controller 57A (FIG. 7) for controlling an image signal is separated from the in-pipe repair machine 1 and installed near a monitor receiver 57B on the ground. The in-pipe repair machine 1 is downsized.

The window glass 5 of the in-pipe repair machine 1
5 is provided with a cross cross 56 (FIG. 5), which is a mark for aiming at the repair target, and is configured so as to be taken into an image.

Further, a halogen lamp 58 for illuminating the outside through a window glass 55 is mounted near the monitor camera unit 57 (FIG. 4).

The manifold sleeve 11 expands in the radial direction of the manifold and presses the wound and temporarily fixed repair material (not shown) against the inner peripheral surface of the manifold 9. It has a bellows shape so that it can expand and contract in any direction.

The bellows-shaped manifold sleeve 11 always tries to extend in the longitudinal direction of the manifold 9, but is normally held in a contracted state by being pulled by the mainspring device 59. The mainspring spring device 59 is configured as follows. That is, a total of four wires 60 attached to the four inner corners of the distal end of the branch pipe sleeve 11 move in the contraction direction (FIG. 2).
The pulley 61 is pulled in the middle and downward directions, is turned in the horizontal direction by four pulleys 61, and is fixed to one slider 63. The slider 63 can slide on a rail 65 provided in the longitudinal direction of the connecting member 15. The slider 63 is further attracted by the unwound spring spring 67 and is held at the contracted position. The force of the mainspring 67 is set to a force that causes the slider 63 to slide to the right in the drawing, while being defeated by the force that causes the manifold sleeve 11 to expand due to the air guided by the air coupler 35.

Hereinafter, a repair procedure by the in-pipe repair machine 1 according to this embodiment will be described.

That is, the in-pipe repair machine 1 is carried to the site by a work carrier 71 (FIG. 7) or the like, and
And lowered to the sewer pipe 7 for repair. Then, while pulling the wire 73 or running by the driving wheel 50 of the self-propelled device 49, the image sent from the monitor camera unit 57 is viewed on the monitor receiver 57B on the ground, and the purpose is to perform repair. Manifold 9 (Fig. 7)
Search for At this time, the air coupler 35 is attached to the in-pipe repair machine 1.
Hose for sending air to the camera, power supply cable for supplying power to the socket 41, monitor camera unit 5
A bundle 75 such as a signal cable for taking out an image signal from the camera 7 is attached, and the work is performed while being connected to the ground.

Since the outer shape of the covers 36 provided at both ends of the fuselage 1 is in the shape of a tapered bullet, it is easy to get over dirt and steps inside the pipe 7 and it is easy to travel. .

When confirming the position of the manifold 9 by the monitor camera unit 57, the motor 53 is rotated to rotate around the bearing. That is, in both holding mechanisms 13, the connecting member 15 and the rubber sleeve 3 are rotated around the bearing with respect to the traveling wheel 45 around the longitudinal axis direction of the pipe 7, the aim of the monitor camera is adjusted, and the position of the branch pipe 9 is adjusted. Confirm. This rotation is performed, for example, 165 degrees in each of the left and right directions (FIG. 8).

FIG. 8 shows an image captured by the monitor receiver 57B on the ground when the position of the manifold 9 is confirmed.

FIG. 8A is an image obtained by lowering the body provided with another monitor camera (not shown) for inspection into the inside of the tube 7. The back of the tube 7 can be seen in the center. A manifold 9 opens to the right.

FIG. 8B shows an image taken from the monitor camera unit 57 of the in-pipe repair device 1. The opening of the manifold 9 can be seen in the immediate vicinity. A cross cloth 56 is also taken in for imaging.

FIG. 8C shows the opening of the manifold 9 almost in front. By the function of the cross cloth 56, the manifold 9 can be accurately aimed. In the figure of (C), it can be seen that the center of the manifold sleeve (the intersection of the crosses) is slightly deviated from the center O of the manifold 9, so that the two centers are aligned to correct the position correctly. Can be performed.

When the position of the manifold 9 is corrected, the running of the in-pipe repair machine 1 and the rotation of the motor 53 are stopped at that position, the air is pressure-fed from the ground, and the air coupler 35 and a rotating shaft serving also as a pipe. Air is sent to the inside of the rubber sleeve 3 via 29. Thereby, the rubber sleeve 3 starts expanding in the radial direction. At the same time, the manifold sleeve 11 not only expands radially but also extends the longitudinal direction of the manifold 9. This is a manifold sleeve 1 by air
This is because the mainspring spring 67, which has lost the force of 1 to expand, is sent out and the slider 63 slides, and the wire 60 cannot maintain the contracted state of the manifold sleeve 11.

When such expansion and elongation are sufficiently performed, the repair material wound around the outer circumferences of the rubber sleeve 3 and the manifold sleeve 11 and temporarily fixed is replaced with the sewer main pipe 7.
And the inner peripheral surface of the manifold 9.

At this time, the silicon rubber heater 17 is
Until then, the rubber sleeve 3 was pushed radially inward by the force of contracting the rubber sleeve 3 and was located in a state close to the inside of the rubber sleeve 3. However, if the rubber sleeve 3 was expanded by air, The heater spring 19 moves radially outward together with the rubber sleeve 3 due to the force to expand. As a result, the silicon rubber heater 17 maintains a state close to the inside of the rubber sleeve 3.

The silicon rubber heater 17 is energized to heat the repair material through the rubber sleeve 3, and the thermosetting adherend applied to the outer surface of the repair material is thermally cured. Thereby, the repair material adheres to the inner peripheral surface of the pipe.

After the repair material is fixed to the inner peripheral surfaces of the pipes 7 and 9, air is released from the rubber sleeve 3. As a result, the mainspring spring 67, which has lost the force of the rubber sleeve that is trying to expand by air, returns to the original state again, the slide 63 slides leftward in the drawing, and the branch pipe sleeve 11 contracts. Silicon rubber heater 1
7 returns radially inward. In this way, the in-pipe repair machine 1 is separated from the inner peripheral surfaces of the pipes 7 and 9 again, can run, and is pulled back to the ground by the wire or the self-propelled device 49.

In the above embodiment, the traveling wheels 45
Although the self-propelled device 49 is provided, the traveling body 45 can be moved only by the wire 73 without providing the traveling wheel 45 and the self-propelled device 49 in other embodiments.

Further, in the above embodiment, the mark for aiming at the branch 9 as the repair target is a cross cross, but in other embodiments, other marks such as a plurality of concentric circle marks are used. May be.

In the above embodiment, the mark is attached to the window glass 55. However, in other embodiments, the mark may be attached to, for example, a film attached to the objective lens side of the camera.

[0047]

As described above, according to the in-pipe repair machine of the present invention, the mark for aiming at the repair target is provided on the objective lens side of the monitor camera, and the mark is picked up by the monitor camera. By looking at the image, it is easy to understand exactly where the center of the manifold sleeve is located on the repair target, and thus it is easy to operate the in-pipe repair machine.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal sectional view of an in-pipe repair machine according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a left half of FIG.

FIG. 3 is an enlarged sectional view showing a right half of FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is an external perspective view of a central portion of FIG. 1;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 1;

FIG. 7 is an overall view showing a state of a repair operation using the in-pipe repair machine of FIG. 1;

FIG. 8 shows an image picked up by the monitor receiver of FIG. 7;
(A) is an image obtained by lowering the body provided with another monitor camera for inspection (not shown) into the inside of the tube and taking an image.
(B) and (C) are images taken from the monitor camera unit of the in-pipe repair device.

FIG. 9 is an overall perspective view showing a conventional in-pipe repair machine.

FIG. 10

[Explanation of symbols]

Reference Signs List 1 body of pipe repair machine 3 rubber sleeve 11 manifold sleeve 12 boundary 13 holding mechanism 15 connecting member 17 rubber heater 19 heater spring 21 holding member 29 rotating shaft 31 flange portion 33 disk 35 air coupler 36 cover 41 socket 45 running wheel 49 own Running device 53 Motor 56 Cross cross (Mark) 57 Monitor camera unit 57A Controller 57B Monitor receiver 63 Slider 65 Rail 67 Spring spring

Claims (2)

[Claims] An elastic rubber sleeve for temporarily fixing a repair material having a thermosetting adhesive applied to an outer surface thereof, a pair of holding mechanisms for holding both ends of the rubber sleeve in a sealed state, and A connecting member for connecting the pair of holding mechanisms inside the rubber sleeve, a rubber heater provided near the inside of the rubber sleeve, and an air coupler provided on one of the holding mechanisms and guiding air for inflating the rubber sleeve; An in-pipe repair machine having a socket provided on one of the holding mechanisms for energizing the rubber heater and a monitor camera for photographing the inside of the pipe, wherein the objective lens side of the monitor camera is aimed at the repair target. An in-pipe repair machine characterized by a mark for attachment. 2. The rubber sleeve has a branched branch sleeve which extends and contracts in the direction of the branch, wherein a monitor camera is provided on the branch sleeve, and the mark is a cross. The in-pipe repair machine according to claim 1.