JP3219569B2 - Piping lining repair equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called lining pipe repair apparatus having an inner lining.

[0002]

2. Description of the Related Art Among pipes of this kind, an inspection apparatus for remotely inspecting a lining of a pipe having a relatively small diameter and which cannot be entered by an operator has been developed, and the principle diagram thereof is shown in FIG. .

[0003] According to this, the inspection device comprises a driving carriage 81,
82, an inspection cart 83 and an auxiliary cart 84, each of which is connected by a bellows 85. The driving trolley 81 and the inspection trolley 83, and the driving trolley 82 and the auxiliary trolley 84 are connected by a connecting rod via a universal joint (not shown), and the trolley is provided with a plurality of wheels 86 radially. I have.

[0004] The drive truck 81 and the drive truck 82 are similarly connected by a cylinder device 87 via a universal joint, and both the trucks are provided with an annular air bag 88. Therefore, by introducing the compressed air into the airbag 88, both the driving carts 81 and 82 can be fixed to the lining tube 13, respectively. And the airbag 88
Are alternately inflated and the cylinder device 87 is expanded and contracted, so that each truck walks in the lining tube 13 like a so-called scale insect.

The inner surface of the lining tube 13 is provided with a resin lining layer 89 having a thickness of several mm. The presence or absence of a defect in the resin lining layer 89 is inspected by a television camera or other inspection equipment mounted on the inspection carriage 83.

When a defect is found, conventionally,
The defective part is heated from the outside of the pipe, and powder resin is sprayed on the defective part from the inside, or if the pipe diameter is too small to work inside the pipe, it is replaced with a new lining pipe.

[0007]

However, as described above, when a worker repairs the inside of a pipe, it is necessary to remove a defective portion, which requires a lot of man-hours and costs, and the working environment is extremely bad. There was a point. On the other hand, in the case of replacing with a new tube, there is a problem that the cost is largely wasted if the number of defective portions is small. In addition, when the lining pipe is a buried pipe, large construction is required in any of the above cases.

The present invention has been proposed to solve such a problem, and an object of the present invention is to provide a pipe lining repair apparatus capable of performing all repair work automatically in a pipe.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a piping lining repair device according to the present invention has a repair trolley and a tank trolley that can be pulled by an inspection trolley and run in the lining pipe. The repair trolley and the tank trolley are connected by a connecting rod having a universal joint, and the repair trolley supports a rotating body via a bearing between front and rear end plates that can be aligned and fixed in the lining pipe. In addition to arranging tools corresponding to the repair work sequence on the same circumference,
The tank truck is provided with a powder resin tank required for lining repair, the same supply device, and a dust collection tank. In addition, the tools include a grinder device, a heater, a powder resin spraying device, a dust suction device, a pinhole detector, and a film thickness meter, and a pressing mechanism for the lining tube is provided for these tools as necessary. It is suitable.

[0010]

According to the above construction, the repair trolley and the tank trolley are pulled by the existing inspection trolley and guided to the repair location, and the rotating body is sequentially rotated, so that the repair work can be carried out along the repair work sequence. It is performed by remote control outside.

[0011]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows the overall configuration of a lining repair device.
As shown in the figure, the present apparatus is composed of a repair truck 2 and a tank truck 3, and these two trucks are connected by a connecting rod 4 having a universal joint and a bellows 5. The repairing trolley 2 is also connected to an auxiliary trolley or the like in an existing inspection device as shown in FIG.

The repair car 2 has front and rear end plates 6 and 7, and is supported by front and rear rotating plates 9 and 10 via bearings 8, respectively. Each of the end plates 6 and 7 has a plurality (three sets in this example).
Wheels 11 and centering legs 12 are provided.

The front and rear rotating plates 9 and 10 are plural (3 in this example).
Are connected by fixed rods 14) to form a rotating body.
A rotation motor (with a reduction gear and an encoder) 16 for driving a rotating body is fixed to one of the fixing rods 14 via a bracket 15. That is, the gear 18 attached to the output shaft of the rotation motor 16 meshes with the internal gear 17 attached to the inner surface of the rear end plate 6. A grinder device 19 is swingably attached to another fixing rod 14.

The tank truck 3 is provided with a powder resin tank 20, a powder resin supply device 21, and a dust tank 22, and is connected to a spraying device 23 and a suction device 24, which will be described later, by appropriate piping 25 and vacuum piping 26, respectively. ing.

2, the wheel 11 is mounted on the front end plate 7 through a bracket 30 as shown in FIG. The aligning leg 12 is slidably attached to a slide base 31 and has a guide roller 32 at a lower end. The guide roller 32 is fitted in the eccentric groove 34 of the cam plate 33, and the rotation of the cam plate 33 moves the aligning leg 12 in the radial direction, contacts the lining tube 13, and fixes the front end plate 7. It has become. FIG. 2 shows a fixed state.

The cam plate 33 is held by a plurality of (three in this embodiment) guide rollers 32 and is operated by a cylinder 35. That is, the cylinder 35 is supported by the front end plate 7 at the cylinder base end by the bracket 36 and the piston shaft 3
The tip of 7 is connected to the bracket 38 of the cam plate 33, and the cam plate 33 is rotated by the expansion and contraction of the piston shaft 37. A similar cam mechanism is provided for the rear end plate 6.

As shown in FIG. 3 showing a cross section taken along line BB of FIG. 1, the grinder device 19 includes a motor 41 mounted on a mounting hardware 40, and drives the grinder 43 by a belt 42. One end of the mounting hardware 40 is supported by the fixing rod 14,
The other end is connected to a piston shaft 44 of a cylinder 45. The cylinder base end of the cylinder 45 is supported by the front rotary plate 10 (see the broken line in FIG. 1). Therefore, when the piston shaft 44 is extended by air pressure, the grinder 43 is pressed against the lining tube 13 and the defective portion can be ground and removed.

In FIG. 3, 23 is a spraying device, 24 is a suction device,
46 is a heater, 47 is a pinhole detector, 48 is C
The CD camera 49 is a film thickness gauge, and how to attach them will be described with reference to FIGS.

As shown in FIG. 4, the heater 46 uses a high-frequency coil and is supported by the front and rear rotating plates 9, 10.
Power is supplied from outside the pipe by the power supply cable 52. Then, the repair portion 50 is heated to repair the lining 51.

As shown in FIG. 5, the spraying device 23 ejects the resin sent from the powdered resin supply device 21 via the pipe 25 from the nozzle 55 to the repair location 50 heated by the heater 46. The nozzle 55 is swung in order to perform uniform welding. That is, the nozzle 55 is connected to the fulcrum 5 of the seat plate 57 provided on the mounting plate 56.
It swings around the center 8 by the rotation of the motor 60 via the link device 59.

As shown in FIG. 6, the suction device 24 connects the vacuum pipe 26 to the nozzle 63 to suck dust such as powder resin into the dust tank 22. There is an elevating mechanism 65A that comes into contact with the part 64. The elevating mechanism 65A is configured to fix an elevating shaft 68 to an end of a piano wire 67 penetrated into the flexible tube 66, and to push and pull the piano wire 67 from outside the pipe to move the nozzle 63 up and down.

As shown in FIG. 7, a pinhole detector 47 is provided.
Is for inspecting the built-up portion 64, and the presence or absence of a pinhole is determined by an electric signal. Then, the lead wire 70 is guided outside the pipe for monitoring. Further, an elevating mechanism 65B configured similarly to the elevating mechanism 65A of FIG.

As shown in FIG. 8, a CCD camera 48 is a small and high-sensitivity television camera fixed to a bracket 73 so as to be located at the center between the front and rear rotating plates 9 and 10, and a monitor outside the piping is connected by a lead wire 74. It sends video signals to the television. Further, since the CCD camera 48 is arranged at the center of the repair vehicle 2, the repair vehicle 2 is positioned so that the repair position 50 confirmed by the inspection device shown in FIG. Each repair tool shown in FIG. 3 can be reliably set at the position of the repair portion 50.

As shown in FIG. 9, the film thickness meter 49 is brought into contact with the overlay 64 by using an ultrasonic thickness meter or the like.
The lifting mechanism 65C is configured similarly to the lifting mechanism 65A. The measurement result is transmitted to the outside of the pipe via the lead wire 75.

In this manner, the repair of the lining 51 is automatically performed by remote control outside the pipe. The circumferential length of each of the tools for performing the repair along the repair work sequence is as follows. The rotation of the rotating body (both front and rear rotating plates 9 and 10) is controlled by the rotation motor 16.

[0027]

As described above, according to the present invention, by connecting the repair device to the existing inspection device, the repair operation can be performed immediately after the inspection operation and automatically by remote control without replacing the piping. I can do it. In addition, when the diameter of the pipe is small and not all the tools can be integrated into one rotating body, the same effect can be obtained by distributing the tools by using a plurality of repair vehicles. As a result, the construction period can be significantly reduced and costs can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a mounting diagram of a heater.

FIG. 5 is a mounting view of the powder resin spraying device.

FIG. 6 is a mounting view of the cleaning dust suction device.

FIG. 7 is a mounting diagram of the pinhole detector.

FIG. 8 is a mounting view of a CCD camera.

FIG. 9 is a mounting diagram of a film thickness meter.

FIG. 10 is an explanatory diagram of an existing inspection device.

[Explanation of symbols]

 Reference Signs List 2 repair cart 3 tank cart 4 connecting rod 6,7 end plate 8 bearing 9,10 rotating plate 11 wheel 12 aligning leg 13 lining tube 14 fixing rod 19 grinder device 20 powder resin tank 21 powder resin supply device 22 dust tank 23 Spraying device 24 Suction device 46 Heater 47 Pinhole detector 48 CCD camera 49 Film thickness gauge

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukihide Shimazu 1-1-1, Wadazakicho, Hyogo-ku, Hyogo-ku, Kobe-shi, Hyogo Mitsubishi Heavy Industries, Ltd. 1-1-1 Wadazakicho Mitsubishi Heavy Industries, Ltd., Kobe Shipyard (72) Inventor Tsuneo Bandai 7-1-14, Wadamiyadori, Hyogo-ku, Kobe-shi, Hyogo Seihin Engineering Co., Ltd. (72) Inventor Haku Nakajima statement, Hyogo Prefecture, Kobe City, Hyogo-ku, Wadamiyadori 7 chome No. 14 Nishihishi engineering within Co., Ltd. (56) reference Patent Sho 62-33582 (JP, a) (58 ) investigated the field (Int.Cl. ^7, DB Name) E03F 7/00 F16L 55/18

Claims (1)

(57) [Claims] 1. A repair truck which is pulled by an inspection truck and can travel in a lining pipe, and a tank truck. The repair truck and the tank truck are connected by a connecting rod having a universal joint. A rotating body is supported via a bearing between front and rear end plates that can be centered and fixed in a lining pipe, and tools corresponding to a repair work sequence are arranged on the same circumference of the rotating body. A lining repair device for pipes, comprising: a powder resin tank required for lining repair, a supply device for the lining repair, and a dust collection tank.