JP4476853B2 - Pipe lining material folding device - Google Patents

Description

  The present invention relates to a pipe lining material folding device, and in particular, until a pipe lining material that has been crushed and folded in a sheet-like flat state loaded on a material vehicle or the like is sequentially drawn out and drawn into a human hole. The present invention relates to a tube lining material folding device that can be automatically folded.

  If the pipes that make up the pipelines such as sewage pipes buried in the ground are aged, the aging pipes (existing pipes) are lined up on the inner peripheral surface without replacing them with new pipes. A pipe lining method for repairing pipes has been proposed and put into practical use.

This pipe lining method uses a pipe lining material provided with a tubular resin absorbent fiber layer, and the resin absorbent fiber layer of the pipe lining material is impregnated with a curable resin such as a thermosetting resin or an ultraviolet curable resin. In this state, the pipe lining material is inserted into the pipe material constituting the pipe line, and the pipe lining material is pressed against the inner peripheral surface of the pipe material by increasing the internal pressure of the pipe lining material, and heated or irradiated with ultraviolet rays. Thus, the curable resin impregnated in the resin-absorbing fiber layer is cured, and the inner peripheral surface of the pipe material is lined with a pipe lining material to repair the pipe line (see Patent Documents 1 and 2).
No. 7-23240 No. 7-42701

By the way, the pipe lining material is inserted into the existing pipe line from a manhole, but the pipe lining material is crushed and folded in a sheet-like flat state. If it is thick, the long sheet-like tube lining material cannot be dimensionally inserted into the human hole unless it is folded in the width direction and thinned.
In the past, this was done manually, but it was not easy to continue folding the long pipe lining material of several tens of meters in the width direction while feeding it, and it was not easy to damage the pipe lining material. There is a problem that it takes time, labor, and time to insert into the.

  In view of the problems of the above-described conventional pipe lining material folding work, the present invention sequentially pulls out the crushed pipe lining material loaded in a material vehicle or the like and folded in a sheet-like flat state. It is an object of the present invention to provide a pipe lining material folding device that can be automatically folded before being pulled into a hole.

In order to achieve the above object, a pipe lining material folding apparatus according to the present invention inserts a pipe lining material made of a flexible tube into a pipe material constituting a pipe line, thereby increasing the internal pressure of the pipe lining material. A folding device used in a construction method for repairing a pipe line by curing a pipe lining material while pressing the pipe lining material against the inner peripheral surface of the pipe material, and lining the pipe lining material with the pipe lining material. The left and right rollers for supporting the roller from the lower side are provided to be inclined to the outside, and the first section in which the rollers are disposed substantially horizontally between the lower portions of the left and right rollers and the left and right rollers at a predetermined interval. The first section is provided with the second section in which the rollers are arranged substantially horizontally between the lower portions of the left and right rollers, and one of the left and right rollers is provided with the first section being upright. A third section in which one roller is inclined inward at a predetermined interval, and the roller is disposed substantially horizontally between the lower portions of the left and right rollers, and the opposite of the third section of the left and right rollers with the provision and substantially upright, Ru and a fourth section which is disposed the other roller at a predetermined distance provided obliquely inwardly, and substantially horizontally roller therebetween at the bottom of the left and right roller Thus, the pipe lining material introduced in a sheet-like flat state is fed back into the pipe material constituting the pipe line in a state of being folded in three in the width direction while being fed backward .

  In this case, the rollers on the inclined side of the third section and the fourth section can be provided in two front and rear rows, and the rear roller can be provided inclined deeper inward than the front roller.

  Further, a rear roller for pressing the three-folded pipe lining material can be disposed at the rear part of the fourth section.

  In addition, the left and right rollers for supporting the three-folded pipe lining material are provided so as to be inclined outward, and a manhole roller having a roller disposed substantially horizontally between the lower portions of the left and right rollers It can be arranged at the inlet.

According to the pipe lining material folding apparatus of the present invention , the drawn pipe lining material is raised in a V-shape in the first section and a U-shape in the second section, and is sequentially folded from the left and right in the third section and the fourth section. The tube lining material can be folded in three, so that the tube lining material that has been crushed and folded in a sheet-like flat state can be automatically folded before being drawn into the manhole.
And by folding the pipe lining material in this way, the pipe lining material can be drawn into the manhole in a state where the width dimension is reduced, and when pulling the pipe lining material between the manhole and the existing pipe line The generated friction can be reduced, and the retraction operation can be performed smoothly.

  In this case, the inclined rollers of the third section and the fourth section are provided in two rows in the front and rear, and the rear roller is provided so as to be deeply inclined inward from the front roller so that the left and right folding of the pipe lining material can be It can be performed in two stages by a roller, whereby this folding operation can be performed smoothly.

  Further, by arranging a rear roller for pressing the three-folded pipe lining material at the rear part of the fourth section, the three-folded pipe lining material can be brought into a more stable folded state.

  In addition, the left and right rollers for supporting the three-folded pipe lining material are provided so as to be inclined to the outside, and a manhole roller having a roller disposed substantially horizontally between the lower portions of the left and right rollers By disposing it at the entrance, it is possible to prevent the three-folded pipe lining material from spreading again when it is bent and inserted into the human hole from the ground.

  Embodiments of a pipe lining material folding apparatus according to the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of a pipe lining material folding device according to the present invention.
This pipe lining material folding apparatus introduces a pipe lining material L made of a flexible tube from a flat state in a sheet form, and folds it in the width direction by feeding it backwards. One section 1, second section 2, third section 3 and fourth section 4 are provided.
Moreover, in the folding apparatus of the present embodiment, as shown in FIG. 2, a manhole roller 5 is disposed at the entrance of the manhole M into which the pipe lining material L is drawn.

As shown in FIG. 5, the first section 1 has the left and right rollers 11 and 12 that support the pipe lining material L from the lower side inclined outward (the upper sides of the left and right rollers 11 and 12 are outside the lower side. The roller 13 is disposed substantially horizontally between the lower portions of the left and right rollers 11 and 12.
The left and right rollers 11, 12 are arranged in a V shape with the lower portions abutted against each other, and the height of each of the left and right rollers 11, 12 is adjusted by a substantially horizontal roller 13 one by one. It is arranged to be possible.

As shown in FIG. 6, the second section 2 is provided with left and right rollers 21 and 22 being substantially upright at a predetermined interval, and the lower portion of the left and right rollers 21 and 22 is provided with a roller 23 substantially horizontally therebetween. It is arranged.
The left and right rollers 21 and 22 are provided so that the distance between them can be adjusted. A substantially horizontal roller 23 is disposed after the left and right rollers 21 and 22 so that the height can be adjusted.

As shown in FIG. 7, the third section 3 is provided with a left roller 31 that is substantially upright from the rear, and a right roller 32 that is inclined inward at a predetermined interval (the right roller). 32, and the roller 33 is disposed substantially horizontally between the lower portions of the left and right rollers 31, 32 therebetween.
Further, in the third section 3, the inclined rollers 32 are provided in two front and rear rows, and the rear rollers 32b are provided so as to be deeply inclined inward from the front rollers 32a.
Note that the substantially horizontal roller 33 is disposed after the left and right rollers 31 and 32 so that the height can be adjusted.

As shown in FIG. 8, the fourth section 4 is provided with a right roller 41 substantially upright from the rear, and a left roller 42 inclined inward at a predetermined interval toward the other side ( The upper side of the left roller 42 is disposed on the inner side from the lower side), and the roller 43 is disposed substantially horizontally between the lower portions of the left and right rollers 41, 42 therebetween.
In the fourth section 4, the inclined rollers 42 are provided in two rows in the front-rear direction, and the rear roller 42 b is provided so as to be deeply inclined inward from the front roller 42 a.
The substantially horizontal roller 43 is disposed after the left and right rollers 41 and 42 so that the height can be adjusted.
A rear roller 44 that presses the three-folded pipe lining material L is disposed at the rear of the fourth section 4. The rear roller 44 sandwiches the pipe lining material L with a substantially horizontal roller 43, and is provided so that the distance from the roller 43 can be adjusted.

As shown in FIG. 9, the manhole roller 5 is configured such that the left and right rollers 51 and 52 supporting the three-folded pipe lining material L are inclined outward (the upper sides of the left and right rollers 51 and 52 are lower than the lower side). 2 and disposed at the lower part of the left and right rollers 51, 52 between them and in front (on the introduction side of the pipe lining material L), and as shown in FIG. The rollers 51 and 52 are disposed so as to be positioned at the entrance of the human hole M (the outlet side of the pipe lining material L).
This human hole roller 5 prevents the pipe lining material L from spreading again when the pipe lining material L is inserted into the human hole M by bending it from the ground. Contact with the projection can be prevented.
In addition, hooks 54 are provided on the front and rear of the frame of the manhole roller 5, and these hooks 54 are fixed to the material wheel 6 and the folding device A with wires and ropes, so that the pipe lining material L is heavy. When the human hole M is deep, the position shift of the human hole roller 5 is prevented.

Next, a method of using the pipe lining material folding device of this embodiment will be described.
As shown in FIG. 2, the material wheel 6 loaded with the pipe lining material L is stopped at a position away from the manhole M by a predetermined distance, and a curing sheet 61 is laid between the manhole M and the material wheel 6.
Then, the folding device A is installed in the vicinity of the material wheel 6 and the manhole roller 5 is installed at the entrance of the manhole M.
Since the pipe lining material L is drawn in from another adjacent human hole (not shown), a winch (not shown) disposed in the other human hole M is used, and the wire lining material L is attached by the wire 62. It is drawn into the existing pipe line 63.

The pipe lining material L drawn out from the material wheel 6 is initially a flat sheet, but as shown in FIG. 1, it is folded into a V-shape at the first section 1 and a U-shape at the second section 2. The one-side half is folded at the third section 3, the other half is folded at the fourth section 4, and the tube lining material L folded in three by the rear roller 44 is brought into a more stable folded state.
At first, after passing the pipe lining material L whose tip is folded in advance three through the first section 1 and the second section 2, each of the inclined side rollers 32, 42 of the third section 3 and the fourth section 4 is provided. If the leading pipe lining material L is pulled in after passing through the bottom, it is automatically folded into three by this pulling force.
Further, when the pipe lining material L is bent and inserted into the human hole M from the ground, the pipe lining material L is prevented from spreading again by the human hole roller 5, and the pipe lining material L is formed in the human hole M. Prevent contact with protrusions.

  In this case, when the diameter of the pipe lining material L changes, it can be coped with by adjusting the height and interval of the rollers of each section.

Thus, the pipe lining material folding apparatus of the present embodiment is a folding apparatus that folds the pipe lining material L made of a flexible tube from the sheet-like flat state and folds it in the width direction by feeding it backwards. The left and right rollers 11 and 12 that support the pipe lining material L from the lower side are provided to be inclined outward, and the rollers 13 are disposed substantially horizontally between the lower portions of the left and right rollers 11 and 12. The first section 1 and the left and right rollers 21 and 22 are provided substantially upright at a predetermined interval, and the second section 2 includes a roller 23 disposed substantially horizontally between the lower portions of the left and right rollers 21 and 22. One of the left and right rollers 31 is provided substantially upright, and the other roller 32 is provided to be inclined inward at a predetermined interval, and below the left and right rollers 31, 32. A third section 3 having a roller 33 disposed substantially horizontally therebetween and a side 41 opposite to the third section 3 of the left and right rollers are provided substantially upright, and the other roller 42 is disposed inside at a predetermined interval. 4 and the fourth section 4 provided with rollers 43 substantially horizontally between the lower portions of the left and right rollers 41 and 42, so that the drawn pipe lining material L is provided in the first section 1. V-shaped, raised in a U-shape in the second section 2, can be folded in order from the left and right sequentially in the third section 3 and the fourth section 4, so that it is crushed and flattened like a sheet It is possible to automatically fold the pipe lining material L that has been folded in a state until it is drawn into the human hole M.
Then, by folding the pipe lining material L in this way, the pipe lining material L can be drawn into the human hole M in a state where the width dimension is reduced, and when the pipe lining material L is drawn, the human hole M and the existing pipe The friction generated with the path 63 can be reduced, and the pull-in operation can be performed smoothly.

In this case, the rollers 32 and 42 on the inclined sides of the third section 3 and the fourth section 4 are provided in two rows in the front and rear, and the rear rollers 32b and 42b are provided so as to be inclined deeper inside the front rollers 32a and 42a. The left and right folding of the pipe lining material L can be performed in two stages by the front and rear rollers, and this folding operation can be performed smoothly.
Further, by arranging the rear roller 44 for pressing the three-folded pipe lining material L at the rear part of the fourth section 4, the three-folded pipe lining material L can be brought into a more stable folded state.
Further, left and right rollers 51 and 52 for supporting the three-folded pipe lining material L are provided so as to be inclined outwardly, and a manhole roller in which a roller 53 is disposed substantially horizontally between the lower portions of the left and right rollers. By arranging 5 at the entrance of the human hole M, the pipe lining material L folded in three can be prevented from spreading again when being bent and inserted into the human hole M from the ground.

  As mentioned above, although the folding apparatus of the pipe lining material of this invention was demonstrated based on the Example, this invention is not limited to the structure described in the said Example, It combines suitably the structure described in the Example. For example, the configuration can be changed as appropriate without departing from the spirit of the invention.

  As described above, the pipe lining material folding apparatus according to the present invention is a method in which the pipe lining material loaded in a material vehicle or the like and crushed and folded in a sheet-like flat state is sequentially pulled out and drawn into a human hole. Since it has a characteristic that it is automatically folded in three, it can be suitably used for, for example, construction of a pipe lining material having a thickness or weight of a medium hole diameter or larger.

1 shows an embodiment of a pipe lining material folding device of the present invention, in which (a) is a rear view of a first section, (b) is a rear view of a second section, (c) is a rear view of a third section, d) is a rear view of the fourth section, and (e) is a sectional view of the pipe lining material folded in three. It is explanatory drawing which shows the usage method of the folding device. The same folding device is shown, (a) is a front view of the first section, (b) is a front view of the second section, (c) is a front view of the third section, and (d) is a front view of the fourth section. is there. It is a side view which shows the same folding apparatus. FIG. 3 is a three-side view of a first section. It is a 3rd page figure of the 2nd section. It is a 3rd page figure of the 3rd section. It is a 3rd view of a 4th section. It is explanatory drawing of a manhole roller, (a) is a top view, (b) is a front view, (c) is a left side (on the introduction side of the pipe lining material), (d) is a pipe lining of the left and right roller parts Sectional drawing from the lead-out side of the material, (e) is a right side view (on the lead-out side of the pipe lining material).

Explanation of symbols

L Pipe lining material M Human hole A Folding device 1 First section 11, 12 Left and right rollers 13 Substantially horizontal rollers 2 Second section 21, 22 Left and right rollers 23 Substantially horizontal rollers 3 Third section 31 Substantially upright rollers 32 Inclined roller 33 Substantially horizontal roller 4 Fourth section 41 Substantially upright roller 42 Inclined roller 43 Substantially horizontal roller 44 Rear roller 5 Human-hole rollers 51, 52 Left and right rollers 53 Substantially horizontal roller 54 Hook 6 Material wheel 61 Curing sheet 62 Wire 63 Existing pipeline 64 Roller in human hole

Claims (4)

A pipe lining material made of a flexible tube is inserted into the pipe material constituting the pipe line, and the pipe lining material is hardened while being pressed against the inner peripheral surface of the pipe material by increasing the internal pressure of the pipe lining material. A folding device used in a method of repairing the pipe line by lining the inner peripheral surface with a pipe lining material, and provided with left and right rollers that support the pipe lining material from the lower side, respectively, inclined to the outside A first section in which rollers are disposed substantially horizontally between the lower portions of the left and right rollers, and the left and right rollers are provided in a substantially upright position at a predetermined interval; A second section provided with a roller on one side and one of the left and right rollers are provided upright, and the other roller is provided with an inward inclination at a predetermined interval. The lower section of the roller is provided with a third section with the rollers disposed substantially horizontally between them, and the opposite side of the third section of the left and right rollers, and the other roller is disposed at a predetermined interval on the inner side. inclined provided, and by Rukoto and a fourth section which is disposed substantially horizontally roller therebetween at the bottom of the left and right rollers, the tubular lining material introduced in a flat state of the sheet-like, rearwardly A pipe lining material folding apparatus, wherein the pipe lining material is folded into three in the width direction while being fed and fed into a pipe material constituting the pipe line .   2. The pipe lining material folding according to claim 1, wherein the inclined rollers of the third section and the fourth section are provided in two rows in the front-rear direction, and the rear roller is inclined deeper inward than the front roller. apparatus.   The pipe lining material folding device according to claim 1 or 2, wherein a rear roller for pressing the three-folded pipe lining material is disposed at a rear part of the fourth section.   Left and right rollers supporting the three-folded pipe lining material are provided to be inclined to the outside, and a human hole roller having a roller disposed substantially horizontally between the lower portions of the left and right rollers is provided at the entrance of the human hole. 4. The pipe lining material folding device according to claim 1, 2 or 3, wherein the pipe lining material folding apparatus is provided.

Images