JPS6339068Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is useful for repairing, reinforcing, etc. mainly underground pipelines such as gas pipes, water pipes, power lines, communication lines, etc. This invention relates to an improvement in a lining device used for lining purposes.

BACKGROUND ART In recent years, for the purpose of repairing or reinforcing the above-mentioned pipes, it has been practiced to line the inner surface of the pipes with a flexible cylindrical lining material. As a method for lining the lining, adhesive is applied to the inside of the lining material in advance, and this lining material is inserted into the pipe while being turned inside and out using fluid pressure, and the inner surface of the pipe is Crimp the
There is a construction method in which a pipe line and a lining material are bonded and lined using the adhesive, and this method has been attracting particular attention in recent years. This construction method has many advantages, such as being able to construct long pipes in a short time by exposing only both ends of the pipe, and being able to work even if the pipe has bends. This is an extremely excellent construction method.

In this method, the lining material wound on a reel is stored inside a pressure vessel, and as the lining material turns inside out, it is fed from the reel and supplied to the turned-over portion, where it is turned inside out over its entire length, lining the inner surface of the pipeline.

Problems that the invention aims to solve By the way, with this method, it is also possible to pull out the lining material from the reel by the force of turning the lining material over by fluid pressure, but this requires a large amount of work to turn the lining material over. Fluid pressure is required, and it is difficult to control the turning speed. Therefore, it is preferable to drive and actively rotate the reel on which the lining material is wound, feed the lining material into the pipe at a constant speed, and turn the lining material one after another at a constant speed.

However, with this method, if some trouble occurs during the process of inserting the lining material into the pipe and the lining material stops turning over, the reel will still be rotating, so the lining material will be inserted one after another. As the lining material is unwound from the reel, more serious problems may occur, such as loosening of the lining material in the pipeline or pressure vessel, or localization of the uninverted lining material into the inside-out part of the lining material. .

Therefore, if the lining material stops turning over due to some kind of trouble, the rotation of the reel will stop immediately, and the lining material may become loose inadvertently, be fed into the pipe too much, or be turned over. It is necessary to prevent the parts from being pushed in locally.

Conventionally, for this purpose, a rotatable lever was attached to the inside of the lining material attachment part of the pressure melting container, and a pair of rollers were provided on the lever to pass the lining material, and when the lining material stopped turning over, Conventionally, when the lining material becomes slack, the rotation lever rotates and operates a switch to stop the rotation of the reel. However, in cases where the lining material is rigid, The rotation lever was supported by the rigidity of the lining material and could not be rotated, and therefore, even though the lining material had stopped turning over, the rotation of the reel often did not stop. It is.

The present invention was developed in view of the above circumstances, and is designed to reliably detect the progress of the lining material and stop the rotation of the reel when the lining material stops turning over for some reason. did,
The object of the present invention is to provide a novel pipe lining device.

Means for Solving the Problems The present invention stores a cylindrical lining material A whose inner surface is coated with adhesive in a pressure vessel 2, and inserts the lining material A into the pipe while turning it over using fluid pressure. , a pipe lining device used in a lining method in which the turned-over lining material A is bonded to the inner surface of the pipe via the adhesive, and a reel 3 on which the lining material A is wound inside the pressure vessel 2. is rotatably housed, and a lining material attachment part 4 is provided at the lower front of the pressure vessel 2 to fix the end of the lining material A in an annular shape,
A progress detection device 21 is provided inside the lining material attachment portion 4 to measure whether or not the lining material A is progressing, and when the progressing speed of the lining material A detected by the progress detection device 21 becomes less than a predetermined speed. In some cases, in the pipe line lining device that stops the driving of the reel 3, the progress detection device 21 connects a rotary lever 23 rotatably attached to the pressure vessel 2 and the rotary lever 23, which is rotatably attached to the pressure vessel 2. A pair of rollers 2 rotatably supported at the pivot point and tip of the movable lever 23
2, 24, a rotary plate 25 with a large number of through holes 26 driven by a rotating roller 22 serving as a rotational fulcrum, and a proximity switch 28 provided close to the rotary plate 25. The lining material A is stretched between the rollers 22 and 24, and as the lining material A advances, the rollers 22 and 24 and the rotary plate 25 rotate, and when the rotary plate 25 stops, the adjacent rollers 22 and 24 rotate. This is characterized in that the switch 28 detects this and stops the rotation of the reel 3.

Embodiment The drawings show an embodiment of the lining device of the present invention. In FIGS. 1 and 2, 1 is a truck, and a pressure vessel 2 is placed on the truck 1.
A reel 3 on which a lining material A is wound is rotatably supported in the pressure vessel 2, as shown in FIG. The reel 3 has a width that is sufficiently larger than the folded width when the lining material A is folded flat.

As shown in FIG. 3, a lining material attachment part 4 is formed at the lower front of the pressure vessel 2 to which the end of the lining material A is attached, and the end fitting (not shown) is provided with a lining material attachment part 4 for attaching the end of the lining material A. The tip can be fixed in a ring shape.

Further, a lining material inlet 5 is formed above the mounting portion 4 . The lining material introduction port 5 is
It is normally sealed with a lid 6, and when introducing the lining material A, the lid 6 can be opened to open the lining material introduction port 5. Further, the lid 6 is adapted to be easily lifted upward by a weight balancer 7 when the lining material introduction port 5 is removed.

The reel 3 is connected to a reducer 9 via a chain 8 outside the pressure vessel 2, and the reducer 9 is connected to a motor 10 with a continuously variable transmission and a DC motor 12 via a clutch 11. ,
The DC motor 12 is driven by the battery of the truck 1, and the continuously variable transmission motor 10 is driven by an external power source.

A snow phon 13 and a stirring fan 14 are attached to the upper part of the inner surface of the pressure vessel 2. The snow phon 13 is connected to a carbon dioxide gas cylinder 15 mounted on the truck 1, and the snow phon 13 is connected to a carbon dioxide gas cylinder 15 mounted on the truck 1 to supply dry ice powder into the pressure vessel. It's starting to spray. The snow phon 13 and the stirring fan 14
is adapted to be driven by the battery of the truck 1.

Reference numeral 16 denotes a squeezing device that applies adhesive to the inner surface of the lining material A, which is provided in the front part of the lining material introduction port 5. The squeezing device 16 sandwiches the lining material A between two squeezing rollers 17, 17, and introduces the lining material A into the pressure vessel 2 from the lining material introduction port 5 while applying adhesive to the lining material A, and reels it. It is designed to be wound around 3. Therefore, this diaphragm device 16
The lining material A is fed into the pressure vessel 2 while traversing from side to side, and wound around the reel 3 while traversing.

18 is a speed measuring device provided at the upper part of the inner surface of the pressure vessel 2. The speed measuring device 18 includes an arm 19 whose rear part is rotatably supported by the pressure vessel 2.
A rotating roller 20 is rotatably supported at the tip of the roller. The rotating roller 20 rotates while contacting the outer periphery of the lining material A wound around the reel 3, measures the advancing speed of the lining material, and provides feedback to the motor 10 with the continuously variable transmission. The rotation speed of the attached motor 10 is controlled.

21 is a progress detection device for the lining material A. The progress detection device 21 is provided in the lining material attachment part 4, and a rotary roller 22 is rotatably supported between both sides of the attachment part 4. A lever 23 is rotatably provided, and a presser roller 24 is rotatably supported between the tips of the rotary lever 23. Further, below one of the rotary levers 23, a metal rotary plate 25 having a large number of through holes 26 is rotatably attached to the mounting portion 4 of the pressure vessel 2. is timing belt 27
It is adapted to rotate in conjunction with the rotating roller 22. Further, a proximity switch 28 is provided on the side of the rotary plate 25 in close proximity to the rotary plate 25.

Function: The lining material A is stretched from above the rotating roller 22 to below the presser roller 24, and is pressed onto the rotating roller 22 by being pressed by the presser roller 24. As the lining material A advances, the rotating roller 22 is rotated, and the rotating plate 25 is also rotated via the timing belt 27.

Since a large number of through holes 26 are bored in the rotary plate 25, when the rotary plate 25 rotates, the through holes 26 and metal parts other than the through holes 26 alternately pass in front of the proximity switch 28. becomes, proximity switch 2
Pulse signals are alternately emitted from 8. Therefore, by emitting a pulse signal from the proximity switch 28, it is sensed that the rotating roller 22 is rotating, and the progress of the lining material A is detected, and when the pulse disappears, the lining material A is moved. It detects when it has stopped.

In order to use this lining device, first, adhesive is sealed in the lining material A in front of the squeezing device 16, and from one end of the lining material A to the squeezing device 1.
6, the adhesive is uniformly applied to the inside of the lining material A, the lining material A is introduced into the pressure vessel 2 through the lining material introduction port 5, and its tip is connected to the reel 3. In this state, the motor 10 with a continuously variable transmission is driven to rotate the reel 3 in a counterclockwise direction, and the adhesive is evenly applied to the inner surface of the lining material A while being wound around the reel 3.

Also, while winding the lining material A on the reel 3,
The snow phon 13 is driven by the electric power of the battery of the truck 1, and liquefied carbon dioxide gas is sprayed from the snow phon 13 to form powdered dry ice.While the powdered dry ice is sprinkled on the lining material A, the lining material A is wound around the reel 3. By doing so, it is possible to cool the lining material A with the powdered dry ice and prevent the adhesive applied within the lining material A from curing prematurely.

Next, if the location where adhesive is applied to the lining material A and stored in the pressure vessel 2 is far from the lining work site, the DC motor 12 is driven by the battery of the truck 1. The reel 3 is transported to the construction site while being slowly rotated by the power thereof via the reducer 9. In addition, liquefied carbon dioxide gas is sprayed into the pressure vessel 2 from a snow phon 13 periodically or depending on the temperature change inside the pressure vessel 2, and a stirring fan 14 is driven.
It is preferable to maintain the inside of the pressure vessel 2 at a low temperature and transport the lining material A while keeping it cool.

When you arrive at the pipeline lining construction site, stop the rotation of the reel 3, pull out the end of the lining material A from the reel 3, and remove the rotating roller 2 of the progress detection device 21.
2 and presser roller 24, and its tip is attached to the attachment part 4. Pressure fluid (for example, compressed air) is introduced from the pressure fluid introduction port 29, and the lining material A
While being turned over by fluid pressure, the reel 3 is driven clockwise by a motor 10 with a continuously variable transmission, and the lining material A is fed into the pipe and turned over, and is also inserted into the pipe and lined.

At this time, as described above, the circumferential speed of the outermost circumference of the lining material A wound around the reel 3 is measured by the rotating roller 20 of the speed measuring device 18, and the motor 10 with a continuously variable transmission is controlled based on the circumferential speed. control and adjust the rotation speed of the reel 3. As a result, the circumferential speed of the outermost periphery of the lining material A wound around the reel 3 is always maintained at a constant speed, and the delivery speed of the lining material A remains constant.

In addition, if the lining material A stops turning over for some reason in the pipeline, reel 3
Lining material A is still sent out from
It is not taken out from inside the pipeline, and the pressure vessel 2
The lining material A accumulates inside, and the advancement of the lining material A near the progress detection device 21 is stopped. As a result, the rotation of the rotating roller 22 in the progress detection device 21 is stopped, and the rotation of the rotating plate 25 is also stopped. Therefore, since the pulse signal emitted from the proximity switch 28 disappears, it is sensed that the rotation of the rotating roller 22 has stopped, and furthermore, it is detected that the advancement of the lining material A has stopped, and the continuously variable transmission motor 10 is activated. By stopping the reel 3, the rotation of the reel 3 is stopped.

Furthermore, when the above-mentioned trouble is resolved and the lining material A continues to be turned inside out, the lining material A that has accumulated in the pressure vessel 2 and has become loose is drawn into the pipe through the attachment part 4, so that the rotating roller 22, the rotating plate 25 also resumes rotation, and the proximity switch 28
The motor 10 with the continuously variable transmission starts driving again by the pulse signal emitted from the reel 3, and the reel 3 resumes rotation, so that the lining material A can be turned over again.

According to the present invention, if the turning over of the lining material A inside the pipeline stops for some reason, the rotation of the reel 3 is stopped via the progress detection device 21, and the lining material A is not pushed excessively into the pipeline. Therefore, after the cause of the turning over stop is removed, the turning over can be continued again.

Further, in the present invention, the progress detection device 21 detects the rotation of the rotary plate 25 as the lining material A advances, and stops the rotation of the reel 3 when the rotary plate 25 stops. Lining material A
Due to the rigidity of the reel 3, the rotation of the reel 3 can be controlled reliably at all times without inaccurate detection of turning over and stopping. In addition, since the lining material A is wrapped around two rollers, the rotating roller 22 and the presser roller 24, the lining material A is always attached to the rotating roller 22
The rotating roller 22 and the rotating plate 25 can be reliably rotated by being pressed against the lining material A, and the stoppage of the lining material A can be reliably detected.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the lining device of the present invention mounted on a truck;
The figure is a plan view thereof. FIG. 3 is a central vertical sectional view of the lining device of the present invention. A... Lining material, 2... Pressure vessel, 3... Reel, 4... Mounting part, 21... Progress detection device, 2
2... Rotating roller, 23... Rotating lever, 24
... Presser roller, 25 ... Rotating plate, 26 ... Through hole, 28 ... Proximity switch.

Claims (1)

[Scope of utility model registration request] A cylindrical lining material A coated with an adhesive on the inner surface is stored in the pressure vessel 2, and the lining material A is inserted into the pipe while being turned over by fluid pressure, and the lining material A that has been turned over is inserted through the adhesive. This is a pipe lining device used in the lining construction method in which the lining material A is wound around the pressure vessel 2 and is rotatably stored in the pressure vessel 2, and is attached to the lower front surface of the pressure vessel 2. is provided with a lining material attachment part 4 that fixes the end of the lining material A in an annular shape, and a progress detection device 21 is provided inside the lining material attachment part 4 to measure the progress of the lining material A, and the progress detection device 21 is provided inside the lining material attachment part 4. In a conduit lining device that stops driving the reel 3 when the advancing speed of the lining material A detected by the device 21 becomes lower than a predetermined speed, the progress detecting device 21 controls the pressure A rotary lever 23 rotatably attached to the container 2, a pair of rollers 22 and 24 rotatably supported at a rotary fulcrum and a tip of the rotary lever 23, and a rotary fulcrum thereof. a rotary plate 25 with a large number of through holes 26 driven by a rotating roller 22;
5, the lining material A is connected to the rollers 22, 24.
The rollers 22, 24 and the rotary plate 25 rotate as the lining material A advances, and when the rotary plate 25 stops, the proximity switch 28 detects this and reel 3
It is characterized by stopping the rotation of the
Pipe lining equipment.