JP2007296477A - Piping lining device and piping lining method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piping lining device which can make uniform the thickness of a coating material layer inside an indoor crosscut pipe, using a simple means, when the piping is coated for regeneration, and thereby, achieve advantages such as low cost, excellent durability and high quality, and to provide a piping lining method. <P>SOLUTION: Sweepback surface parts 7A and 8A are formed on the tops of a first moving element 7 and a second moving element 8, and a rather broad surplus space parts J and Q are secured to the inner wall part 4a of the indoor crosscut pipe 4. Further, a coating material of the rather thick coating material layer 9a existing in the surplus space parts J and Q between the sweepback surface parts 7A and 8A and the inner wall part 4a of the indoor crosscut pipe 4, flows down along both left/right side surfaces of the indoor crosscut pipe 4 by a specified amount due to a surface tension, following the formation of the coating material layer 9a. Thus the thickness of the coating material layer 9a is unified. Consequently, it is possible to make the thickness of the internal coating material layer 9a of the indoor crosscut pipe 4 by a simple means and thereby, improve workability at a low cost and finish a coating material application with excellent durability and high quality. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a pipe lining apparatus and a pipe lining method for applying a rehabilitating paint layer in a pipe provided in a horizontal state, such as an indoor horizontal pipe, among buried pipes and water supply / drainage pipes of a building.

Many kinds of foreign matter such as food residues, oils and fats, used detergents, hair, gravel and earth and sand adhere to and accumulate in pipes such as mains and water supply / drainage pipes installed in buildings, forming scale substances with rust. is doing. In order to restore the hygienic condition by maintaining the function and sealing odor of the pipe, the pipe is periodically cleaned using a cleaning device to completely remove rust and scale substances that adhere and accumulate in the pipe. .
After cleaning the pipe, in order to restore durability and the like by rehabilitating the pipe, a coating material having a predetermined thickness is applied in a layer form in the pipe by a lining device (see, for example, Patent Document 1).

In Patent Document 1, a parachute-like moving body is connected to a rope means in a pipe, a driving pressure is generated by a compressor or the like, and the rope means moves while being fed. Since the paint is dissolved in a solvent and becomes a sticky liquid, it has fluidity. For this reason, the moving body presses the coating material against the inner wall portion of the pipe while the moving body is in progress, thereby causing the coating material to adhere to the inner wall portion in the circumferential direction to form a coating layer for rehabilitation.
JP 2005-296720 A

In this case, the parachute-like moving body is made to proceed substantially concentrically along the pipe in order to make the thickness of the paint layer uniform. For this reason, when the pipe is provided in a horizontal state such as an indoor horizontal pipe, immediately after the paint layer is formed, the liquid paint adhering to the upper part is formed along the left and right inner walls of the pipe due to surface tension. And slowly flow down.
That is, when drying and curing the paint layer, the paint slides down from the upper part of the paint layer in the pipe and accumulates in the lower part. As a result, the upper part of the paint layer becomes thinner while the lower part is thicker, the thickness of the paint layer becomes non-uniform, and the durability may be inferior and the quality may be lowered.
Further, when the moving body advances in the pipe, it is accompanied by rotation, so that the paint is agitated and air is taken into the paint in the form of bubbles. For this reason, when air expand | swells at the time of drying and curing, there also exists a malfunction which a bubble produces in a coating layer and durability and quality fall.

  The present invention has been made in view of the above circumstances, and its purpose is to make the thickness of the paint layer in the pipe uniform by simple means when performing rehabilitation coating, and it is possible to reduce the cost and workability. An object of the present invention is to provide a piping lining apparatus and a piping lining method that can improve the durability and realize a high-quality paint finish with excellent durability.

(About Claim 1 and Claim 18)
In a piping lining apparatus and piping lining method for coating the inside of a pipe provided horizontally or substantially horizontally, a single or a plurality of moving bodies are arranged in the pipe along the axial direction of the pipe by driving pressure. Move concentrically.
The receding surface part formed in the upper part of the moving body secures a wider surplus space part with respect to the upper part of the inner wall part of the pipe. The center-of-gravity position eccentric portion promotes the restoration with respect to the left and right oscillating displacement caused when the moving body moves by positioning the center of gravity of the moving body at the lower part.
When supplying the paint into the pipe and moving the moving body by the driving pressure, the moving body presses the paint against the inner wall of the pipe to form a paint layer. Along with the formation of the paint layer, the thick paint layer in the surplus space between the receding surface and the inner wall of the pipe flows down along the left and right sides of the pipe due to surface tension, making the thickness of the paint layer uniform. To do.

In this configuration, when the moving body moves in the pipe, even if the moving body swings left and right, the restoring force is received by the center-of-gravity position eccentric portion, and it quickly returns to the normal position. For this reason, the thick part of the paint layer can be formed only in the upper part of the pipe. After painting in the pipe, the paint layer formed in the pipe flows down from the top by a predetermined amount along the left and right sides of the inner wall, so finish the paint layer with a uniform thickness over the entire circumference of the pipe. Can do.
Even if the moving body swings left and right at the time of painting, it is immediately restored by the eccentric portion of the center of gravity, so that air is not taken into the paint as the moving body advances. Thereby, it is possible to suppress the generation of bubbles in the paint, to realize a paint layer that is smooth and excellent in wear resistance, and it is possible to achieve a high-quality paint finish having durability.
While having such an effect, it is only necessary to form a receding surface portion on the moving body without adding a new member, enabling rapid painting at low cost, and improving workability, so that competitiveness is also achieved. Are better.

(About Claim 2 and Claim 19)
In a pipe lining apparatus and a pipe lining method for painting inside a pipe provided horizontally or substantially horizontally, a single or a plurality of moving bodies are arranged in the pipe along the axial direction of the pipe by driving pressure. Move.
The moving body is set to have a diameter smaller than the inner diameter of the pipe by a predetermined amount, and the lower part of the moving body is sunk in the paint supplied into the pipe so as to proceed in an eccentric state in the pipe.
When the paint is supplied into the pipe and the moving body is advanced by the driving pressure, the moving body presses the paint against the inner wall of the pipe to form a paint layer.
Along with the formation of the paint layer, the thick paint layer left in the surplus space between the upper part of the moving body and the inner wall of the pipe flows down along the left and right sides of the pipe due to surface tension, and the paint layer Uniform thickness.

Even in this configuration, since the paint layer in the pipe flows down along the inner wall after painting in the pipe, the paint layer can be finished with a uniform thickness over the entire circumference in the pipe. For this reason, a paint layer that is smooth and has little friction can be realized, which contributes to durability and high quality.
While exhibiting such an effect, it is only necessary to sink the moving body in an eccentric state in the paint in the pipe without adding a new member, which is advantageous in cost and excellent in competitiveness.

(Claim 3)
The moving body includes a first moving body and a second moving body, and both are formed in a parabola shape that can be expanded and contracted by plastics such as polyethylene or fibers such as woven fabric.
For this reason, the first moving body and the second moving body can pass smoothly without any trouble even if the pipe is twisted or the pipes are complicated and have different diameters. For this reason, coating performance improves and workability | operativity can be improved. In addition, the first moving body and the second moving body can be formed of a commercially available material such as plastic or fiber, which contributes to a reduction in painting costs.

(About claim 4)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the shape of a ball.
In this case, the second moving body receives a driving pressure during painting, presses the coating material against the first moving body, and pushes an appropriate amount of coating material from the outer peripheral portion of the second moving body onto the inner wall portion of the pipe. For this reason, an appropriate amount of coating material is always supplied to the outer peripheral portion of the second moving body without interruption, and the outer peripheral portion of the second moving body can satisfactorily apply the coating material to the inner wall portion of the pipe.

(Claim 5)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the shape of a bowl.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 6)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the bottomed cylinder shape.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 7)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the cup shape.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 8)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the shape of a cone.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 9)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the hemisphere.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 10)
The moving body includes a first moving body and a second moving body, and both are formed in a ball shape. In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 11)
A fin-like stabilizing plate is provided at the rear of the moving body to generate a downward pressing force due to an airflow generated along with the movement. For this reason, it becomes possible to satisfactorily suppress the swing of the moving body that moves the pipe, and the thick part of the paint layer can be formed only in the upper part of the pipe as set.

(About claim 12)
At the rear of the moving body, a tail plate is provided that stabilizes the moving body as it moves and suppresses its swinging. For this reason, the thick part of the paint layer can be formed only as set in the upper part of the pipe.

(About claim 13)
A lateral groove portion that receives paint in the pipe as it moves and suppresses left and right swinging is provided in a substantially horizontal state on the side surface portion of the moving body. Since the horizontal groove portion receives the paint when the moving body moves, a horizontal directional force is applied to the moving body, and the thick part of the paint layer can be formed only in the upper part of the pipe as set.

(About claim 14)
A moving body consists of a 1st moving body and a 2nd moving body, and one is formed in the shape of a parachute, and the other is formed in the abacus ball shape.
In this case, the second moving body receives driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the outer peripheral portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 15)
The moving body is composed of a ball and a cloth that wraps around the ball and forms a flare portion that spreads forward.
In this case, the second moving body receives a driving pressure during painting, presses the paint against the first moving body, and extrudes an appropriate amount of paint from the flare portion of the second moving body to the inner wall portion of the pipe, The same effect as that of the fourth aspect can be obtained.

(About claim 16)
A moving body consists of a 1st moving body and a 2nd moving body, and at least 1 is formed in the mesh structure which provided the coating material so that discharge | emission is possible from a mesh.
In this case, the second moving body receives a driving pressure during painting, presses the paint against the first moving body, discharges an appropriate amount of paint from the mesh structure, and interrupts the appropriate amount of paint from the outer peripheral portion of the second moving body. Since it discharges to the inner wall part of piping, the same effect as Claim 4 is acquired.

(About Claim 17 and Claim 20)
Since the cable body that can be operated from the outside is connected to the moving body, the convenience of controlling the moving state of the moving body is obtained.

  When the moving body moves relative to the inside of the pipe, the swinging of the moving body is suppressed by the center-of-gravity position eccentric portion. For this reason, the thick part of the paint layer can be formed only as set in the upper part of the pipe. Since the paint layer in the pipe flows down along the inner wall after painting in the pipe, the paint layer can be finished with a uniform thickness over the entire circumference in the pipe.

  1 to 4 show Embodiment 1 of the present invention. FIG. 1 shows an example of lining construction in a drain pipe of a building H, which has a vertical vent pipe 1, a sewage main pipe 2 and a miscellaneous drain main pipe 3 communicating with an external dredger 5 as pipes. From the miscellaneous drainage main pipe 3, an indoor horizontal pipe 4 communicating with each floor F is provided in a horizontal or substantially horizontal state.

  As shown in FIG. 2, the indoor horizontal pipe 4 on each floor F is provided with a pipe network 6 having a kitchen drain port 6b, a wash surface drain port 6c, a laundry drain port 6d, and a bathroom drain port 6e on one end side as pipes. Yes. Prior to lining construction of the piping network 6, the piping network 6 is cleaned together with the ventilation pipe 1, the sewage main pipe 2 and the miscellaneous drainage main pipe 3. It is recovered by a pipe rehabilitation vehicle (VacL machine) Va (see arrows A, B, C, D).

  FIG. 3 shows the first moving body 7 and the second moving body 8 both formed in the shape of a parachute in order to coat the inner wall portion 4a of the indoor horizontal pipe 4 after cleaning. As shown in FIG. 3A, the first moving body 7 and the second moving body 8 are arranged substantially concentrically at predetermined intervals on the inner wall portion 4a of the indoor horizontal pipe 4, and are, for example, polyethylene or chloride. It is formed from a plastic such as vinyl or a fiber such as a woven fabric so that it can be deformed and expanded. The first moving body 7 and the second moving body 8 are a shopping bag shape such as a shop, a hood shape, a purse shape, a dome shape, a hemispherical shape, a spire shape, a warhead shape, a bullet shape, a finger sack shape, a helmet shape, and a cone shape. Shape, windsock shape, trumpet shape, bell shape, drum shape, stocking shape, saddle shape, nose column shape, wedge shape, etc. The point is that the paint 9 enters the paint 9 and is spread by pressing. I just need it.

The rear end opening 7a of the first moving body 7 is provided with a tracking wire 11 that is connected by bundling a plurality of control ropes 10 as a rope body. The wire 11 penetrates the subsequent second moving body 8 so as to be slidable in the axial direction, bundles the control rope 12, and extends as a reins for operation to the outside of the indoor horizontal draw pipe 4.
In this case, the outer diameter dimension of the first moving body 7 is set so as to substantially match the inner diameter dimension of the indoor horizontal pipe 4, and the outer diameter dimension of the second moving body 8 is the outer diameter of the first moving body 7. It is set slightly smaller than the dimensions. In addition, about the magnitude relationship of the outer diameter size of the 1st moving body 7 and the 2nd moving body 8, the 1st moving body 7 may be larger than the 2nd moving body 8, and conversely, the 2nd moving body 8 is 1st. It may be larger than one moving body 7 and can flexibly cope with the properties of the paint, piping conditions, usage conditions, and the like.

Here, as shown in FIGS. 3B and 3C, the upper portions of the first moving body 7 and the second moving body 8 form flat receding surface portions 7A and 8A by rigid plastic pieces. Yes. As a result, the receding surface portions 7A and 8A respectively secure wider surplus space portions J and Q with respect to the upper portion of the inner wall portion 4a of the indoor horizontal pipe 4 (see (a) in FIG. 3).
In the lower portions of the first moving body 7 and the second moving body 8, centroid position eccentric portions 7B and 8B for placing the respective centroids at the lower portions are provided in an embedded state. The center-of-gravity position eccentric parts 7B and 8B are formed of heavy objects such as metal and resin, for example, and promote restoration of left and right swinging displacements that occur when the first moving body 7 and the second moving body 8 travel.

  When the interior of the indoor horizontal pipe 4 is painted, a paint 9 in which, for example, a liquid epoxy resin is mixed between the first moving body 7 and the second moving body 8 using the piping lining method of the present invention. Supply only the set amount. In this state, the pump Pm of FIG. 2 is driven using, for example, a household 100v power source, and air, carbon dioxide, nitrogen gas, etc. are applied to the indoor horizontal pipe 4 as an attractive medium, and the driving pressure (positive pressure, Generate any negative pressure). At this time, when the wire 11 is gradually pulled out while being loosened, the first moving body 7 and the second moving body 8 advance in the indoor horizontal pipe 4 in the direction indicated by the arrow E in FIG.

  In this process, the second moving body 8 is displaced in the direction approaching the first moving body 7 by the piston action, presses the paint 9, and is pushed out from the outer peripheral portion of the second moving body 8. Along with this, the second moving body 8 spreads the paint 9 on the inner wall 4a of the indoor horizontal pipe 4 and applies the paint layer 9a.

  With the formation of the paint layer 9a, as shown in FIG. 4A, the thickness of the paint layer 9a existing in the surplus space portions J and Q between the receding surface portions 7A and 8A and the inner wall portion 4a of the indoor horizontal pipe 4 is obtained. t increases. After painting, the paint 9 of the paint layer 9a existing in the surplus space portions J and Q is caused by the surface tension along the left and right side surfaces in the indoor horizontal pipe 4 as shown in (b) and (c) of FIG. Flow down.

In the above configuration, when the first moving body 7 and the second moving body 8 move with respect to the indoor horizontal pipe 4, even if the first moving body 7 and the second moving body 8 swing left and right, the gravity center position eccentric portion 7B. , 8B, receiving a restoring force and quickly returning to the normal position. For this reason, the part with a large thickness t in the paint layer 9a can be formed only in the upper part of the indoor horizontal pipe 4 as set.
After coating in the indoor horizontal pipe 4, the paint of the paint layer 9a formed in the indoor horizontal pipe 4 flows down from the top along the left and right side surfaces of the inner wall 4a. 4 can be finished with a uniform thickness T over the entire circumference (see (B) and (C) of FIG. 4).

Even when the first moving body 7 and the second moving body 8 swing left and right during painting, the first moving body 7 and the second moving body 8 are moved forward by the center-of-gravity position eccentric portions 7B and 8B. Accordingly, air is not taken into the paint 9. As a result, the generation of bubbles in the coating material 9 is suppressed, and a coating layer 9a that is smooth and excellent in wear resistance is realized, enabling a high-quality coating finish having durability.
While having such an effect, it is only necessary to form the receding surface portions 7A and 8A on the first moving body 7 and the second moving body 8 without adding a new member, so that rapid coating can be achieved at low cost. Because workability is improved, competitiveness is also excellent.

FIGS. 5A and 5B show Example 2 of the present invention. The difference between the second embodiment and the first embodiment is that a large number of paint bleed holes 13 are formed in the circumferential direction on the outer peripheral surface of the first moving body 7. In this case, the second moving body 8 is a disk-shaped shielding plate 14 having a notched flat portion S corresponding to the receding surface portion 7A, and is provided so as to be slidable in the axial direction within the first moving body 7.
At the time of painting, the shielding plate 14 of the second moving body 8 receives the driving pressure and approaches the first moving body 7, presses the paint 9 against the first moving body 7 by the piston action, and an appropriate amount of paint from the paint bleed hole 13. 9 is extruded to the inner wall portion 4a of the indoor horizontal pipe 4 without being interrupted.

  FIGS. 5C and 5D show Example 3 of the present invention. The difference between the third embodiment and the second embodiment is that the second moving body 8 is formed in a bowl shape. In this case, the bowl-shaped second moving body 8 has a notch flat portion U corresponding to the receding surface portion 7A, and can be slid back and forth in the direction closer to the first moving body 7 within the first moving body 7. Is provided. At the time of painting, the bowl-shaped second moving body 8 receives the driving pressure and approaches the first moving body 7, and presses the paint 9 against the first moving body 7 by the piston action. can get.

  FIG. 6 shows a fourth embodiment of the present invention. Example 4 is different from Example 2 in that the second moving body 8 (for example, made of polystyrene foam) is formed in a ball shape as shown in FIG. As shown in FIG. 6B, the ball-shaped second moving body 8 has a cutout flat portion V corresponding to the receding surface portion 7A, and the first moving body 7 is compared with the first moving body 7. It is provided so as to be able to reciprocate in the approaching direction. At the time of painting, the ball-like second moving body 8 receives the driving pressure and approaches the first moving body 7 and presses the paint 9 against the first moving body 7 by the piston action. can get.

  FIG. 7 shows a fifth embodiment of the present invention. The fifth embodiment differs from the first embodiment in that the second moving body 8 is formed in a ball shape as shown in FIG. The first moving body 7 in the shape of an umbrella has a cross-sectional shape shown in FIG. As shown in FIG. 7C, the ball-like second moving body 8 has a notch-shaped receding surface portion 8A at the top, receives driving pressure during painting, and approaches the first moving body 7, 9 is pressed against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained. Contrary to the above, the ball-shaped second moving body 8 may be arranged first, and the first moving body 7 may be the subsequent.

  FIG. 8 shows a sixth embodiment of the present invention. The difference between Example 6 and Example 1 is that both the first moving body 7 and the second moving body 8 (for example, made of polystyrene foam) are formed into a ball shape as shown in FIGS. It is formed. The first moving body 7 and the second moving body 8 have cut-out receding surface portions 7A and 8A in the upper part, and when painted, as shown in FIG. In response to the first moving body 7, the paint 9 is pressed against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained.

FIGS. 9A to 9C show Example 7 of the present invention. The difference between the seventh embodiment and the first embodiment is that the second moving body 8 is formed in a brown tube shape as shown in FIG. As shown in FIG. 9B, the first moving body 7 has a notch-shaped receding surface portion 7A at the top. The second moving body 8 has a notch-shaped receding surface portion 8A in the upper part, and during painting, the second moving body 8 receives driving pressure and approaches the first moving body 7, and the paint 9 is moved to the first moving body 7. Press on.
For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained. Note that the shape of the second moving body 8 is a brown tube shape, which is an example, and the second moving body 8 is not limited to the brown tube shape but may be a bottomed tube shape.

  FIGS. 9D to 9F show Example 8 of the present invention. Example 8 differs from Example 1 in that the second moving body 8 is formed in a cup shape from a material such as paper or synthetic resin, as shown in FIG. As shown in (e) of FIG. 9, the first moving body 7 has a notch-shaped receding surface portion 7 </ b> A at the top. As shown in FIG. 9 (f), the second moving body 8 has a notch-shaped receding surface portion 8A at the top, and the second moving body 8 receives the driving pressure during painting to the first moving body 7. It approaches and presses the coating material 9 against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained.

  FIGS. 10A to 10C show Example 9 of the present invention. The difference between the ninth embodiment and the first embodiment is that the second moving body 8 is formed in a conical shape as shown in FIG. As shown in FIG. 10B, the first moving body 7 has a notch-shaped receding surface portion 7A at the top. As shown in FIG. 10C, the second moving body 8 has a notch-shaped receding surface portion 8A at the top, and the second moving body 8 receives the driving pressure during painting to the first moving body 7. It approaches and presses the coating material 9 against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained.

  11 (a) to 11 (c) show Example 10 of the present invention. Example 10 differs from Example 1 in that the second moving body 8 is formed in a hemispherical shape as shown in FIG. As shown in FIG. 11B, the first moving body 7 has a notch-shaped receding surface portion 7A at the top. As shown in FIG. 11C, the second moving body 8 has a notch-shaped receding surface portion 8A at the top, and the second moving body 8 receives the driving pressure during painting to the first moving body 7. It approaches and presses the coating material 9 against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained.

  (D) to (F) of FIG. 11 show Example 11 of the present invention. Example 11 differs from Example 1 in that the second moving body 8 is formed in an abacus ball shape as shown in FIG. As shown in (e) of FIG. 11, the first moving body 7 has a notch-shaped receding surface portion 7 </ b> A at the top. As shown in FIG. 11 (f), the second moving body 8 has a notch-shaped receding surface portion 8A at the top, and the first moving body 8 having a abacus ball shape receives the driving pressure during painting. Close to the moving body 7, the paint 9 is pressed against the first moving body 7. For this reason, an appropriate amount of the paint 9 is extruded from the outer peripheral portion of the second moving body 8 to the inner wall portion 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained.

FIG. 12 shows Embodiment 12 of the present invention. The difference between the first embodiment and the first embodiment is that the ball 16 is disposed in the first movable body 7 and the second movable body 8 so as to be freely movable, as shown in FIG.
In this case, as shown in FIGS. 12B and 12C, the ball 16 has a notch plane 16A corresponding to the receding surface portions 7A and 8A. At the time of painting, the ball 16 imparts directionality in the traveling direction to the first moving body 7 and the second moving body 8 and plays a role of leading and propelling along the interior horizontal pipe 4. For this reason, the 1st moving body 7 and the 2nd moving body 8 can be passed smoothly without trouble also to the complicated different diameter pipe which winds or branches into plurality. Note that the ball 16 may be provided on only one of the first moving body 7 and the second moving body 8 depending on the usage situation, and may not be installed on the other.

FIG. 13 shows Embodiment 13 of the present invention. Example 13 differs from Example 1 in that the first moving body 7 and the second moving body 8 are composed of a ball 17 and a cloth 18 that wraps around the ball 17 and forms a flare portion 18a that spreads forward. That is. In the ball 17 and the flare portion 18a, as shown in FIGS. 13B and 13C, notched planes 17A and 18A corresponding to the receding surface portions 7A and 8A are formed.
In this case, since the second moving body 8 receives a driving pressure during painting and presses the coating material 9 against the first moving body 7 as shown in FIG. 13A, from the flare portion 18a of the second moving body 8. An appropriate amount of the paint 9 is extruded to the inner wall 4a of the indoor horizontal pipe 4 without interruption, and the same effect as in the first embodiment is obtained. Note that only one of the first moving body 7 and the second moving body 8 may be used alone. Moreover, you may form the following 2nd mobile body 8 in a tea cylinder shape, cup shape, a cone shape, a hemispherical shape, or an abacus ball shape, as shown in Examples 7-11.

FIG. 14 shows Embodiment 14 of the present invention. Example 14 differs from Example 1 in that, as shown in FIG. 14A, the first moving body 7 is formed in a mesh structure, and the paint 9 can be discharged from the mesh of the mesh structure. . In other words, the first moving body 7 includes a mesh tube 21 that is connected to the circular guide plate 20 and has a predetermined tube length.
In this case, as shown in FIG. 14B, the first moving body 7 has a notch plane 21A corresponding to the receding surface portion 7A in the upper part, and the second moving body 8 is shown in FIG. As shown, a receding surface portion 8A is formed. At the time of painting, the second moving body 8 receives driving pressure and presses the paint 9 against the first moving body 7. For this reason, the paint 9 is discharged from the mesh of the mesh cylinder 21 and pushed out from the outer peripheral portion of the second moving body 8 to the inner wall 4 a of the indoor horizontal pipe 4 without interruption.

  Thereby, the paint layer 9a can be formed on the inner wall 4a of the indoor horizontal pipe 4 as in the first embodiment. In addition, the 2nd moving body 8 is abbreviate | omitted among the 1st moving body 7 and the 2nd moving body 8, and you may use only the 1st moving body 7 independently. In this case, the shielding plate 14 shown in the second embodiment may be provided in the mesh tube 21, and the paint 9 may be extruded from the mesh tube 21 to the inner wall 4 a of the indoor horizontal pipe 4 by the piston action of the shielding plate 14. Moreover, you may form the following 2nd mobile body 8 in a tea cylinder shape, cup shape, a cone shape, a hemispherical shape, or an abacus ball shape, as shown in Examples 7-11.

  FIG. 15 shows Embodiment 15 of the present invention. The difference between Example 15 and Example 1 is that, as shown in FIG. 15A, the first moving body 7 is formed in a mesh structure such as stockings so that the paint 9 can be discharged from the mesh of the mesh structure. That is. That is, the 1st moving body 7 is formed in the substantially paraboloid shape by the mesh bodies 22, such as a wire net, a woven fabric, and a synthetic fiber, and can discharge the coating material 9 from a mesh by pressing force.

  In this case, as shown in FIG. 15B, the first moving body 7 has a notch plane 22A corresponding to the receding surface portion 7A in the upper part, and the second moving body 8 is shown in FIG. As shown, a receding surface portion 8A is formed. At the time of painting, the second moving body 8 receives driving pressure and presses the paint 9 against the first moving body 7, so that the paint 9 is discharged from the mesh of the mesh body 22 and from the outer periphery of the second moving body 8. It is extruded to the inner wall 4a of the indoor horizontal pipe 4 without interruption.

  Thereby, the paint layer 9a having a predetermined thickness can be formed on the inner wall portion 4a of the indoor horizontal pipe 4 as in the first embodiment. Of the first moving body 7 and the second moving body 8, only the first moving body 7 may be provided, and the second moving body 8 may be omitted. In this case, the shielding plate 14 shown in the second embodiment may be provided in the mesh body 22 and the paint 9 may be pressed by a piston action. Moreover, you may form the following 2nd mobile body 8 in a tea cylinder shape, cup shape, a cone shape, a hemispherical shape, or an abacus ball shape, as shown in Examples 7-11.

  FIG. 16 shows Embodiment 16 of the present invention. Example 16 is different from Example 6 in that the first moving body 7 and the second moving body 8 are formed of heavy objects having a specific gravity greater than that of the paint 9. In this case, the first moving body 7 and the second moving body 8 are not provided with the receding surface portions 7A and 8A and the gravity center position eccentric portions 7B and 8B of the sixth embodiment, and are in a state of being eccentric downward in the indoor horizontal draw pipe 4. It is located {see (a) of FIG. 16}. About the eccentric state of the 1st moving body 7 and the 2nd moving body 8, the difference of the center O of the indoor horizontal draw pipe 4 and the center P of the 1st moving body 7 (2nd moving body 8) is shown as eccentricity e. ing.

For this reason, immediately after painting, as shown by the symbol t in FIG. With the formation of the paint layer 9a, the paint 9 from the thick paint layer 9a left in the surplus space portions J and Q is caused by surface tension, as indicated by the symbol T in FIG. 4 flows down along both the left and right side surfaces in 4 to make the thickness of the coating layer 9a uniform.
In this case, in order to effectively suppress the swinging of the first moving body 7 and the second moving body 8 in the traveling direction, the gravity center position eccentric portions 7B and 8B may be carefully provided.

  FIG. 17 shows Embodiment 17 of the present invention. The difference between the seventeenth embodiment and the sixteenth embodiment is that the eccentric amount e of the first moving body 7 and the second moving body 8 with respect to the indoor transverse pipe 4 is the same as that of the sixteenth embodiment as shown in FIG. Rather, it is set larger by a predetermined amount downward. For this reason, immediately after painting, the upper part of the paint layer 9a becomes thick as indicated by the symbol t1 in FIG.

The paint 9 of the thick paint layer 9a left in the surplus space J and Q immediately after painting flows down along the left and right side surfaces in the indoor horizontal pipe 4 due to surface tension, and the thickness of the paint layer 9a becomes uniform. To do. Since the upper part of the paint layer 9a is thick, the amount of paint 9 flowing down increases. For this reason, in the lower part in the indoor horizontal pipe 4, the coating layer 9a becomes thick as indicated by the symbol T1 in FIG.
In the indoor horizontal pipe 4, as shown by the symbol Dw in FIG. 17C, the drainage flows substantially horizontally in the indoor horizontal pipe 4, so that the frictional resistance of the drainage against the indoor horizontal pipe 4 is It works most greatly in the lower part of the drawing tube 4. For this reason, setting the paint layer 9a thick in the lower part of the indoor horizontal pipe 4 to improve the wear resistance is advantageous in maintaining durability against drainage and extending the life.

18 and 19 show Embodiment 18 of the present invention. Example 18 differs from Example 6 in that an elongated rectangular tail plate 23 is connected to the rear portions of the first moving body 7 and the second moving body 8 as shown in FIG. It is.
The tail plate 23 stabilizes the first moving body 7 and the second moving body 8 with the progress, and suppresses the swinging thereof. For this reason, the thick part of the paint layer 9a can be formed as set only in the upper part of the pipe by the first moving body 7 and the second moving body 8.

  The tail plate 23 shown in FIG. 18B is tapered, and the tail plate 23 shown in FIG. 19A is a pigeon tail, shown in FIG. The tail plate 23 is a modification formed in a tapered rectangular frame shape. In any of the modifications, the same effect as that of the tail plate 23 shown in FIG.

FIG. 20A shows Example 19 of the present invention. The difference between the nineteenth embodiment and the eighteenth embodiment is that a lateral groove portion 24 is provided instead of the tail plate 23. The lateral groove portion 24 is formed in a substantially horizontal state on both side surface portions of the first moving body 7 and the second moving body 8.
As the first moving body 7 and the second moving body 8 travel, the lateral groove portion 24 receives the paint 9 in the indoor horizontal pipe 4 and applies a horizontal directional force to suppress left-right swinging. For this reason, like Example 18, the thick part of the paint layer 9a can be formed only in the upper part of the indoor horizontal pipe 4. In place of the lateral groove 24, a straight convex portion may be provided in a horizontal state.

FIG. 20B shows an embodiment 20 of the present invention. The difference between the twentieth embodiment and the eighteenth embodiment is that a fin-shaped stabilizing plate 25 is provided instead of the tail wing plate 23.
Since the stabilizing plate 25 is inclined upward in the rearward direction, a downward pressing force f is generated by the air current as the first moving body 7 and the second moving body 8 advance. Thereby, rocking | fluctuation of the 1st moving body 7 and the 2nd moving body 8 which advance in the indoor horizontal draw pipe 4 is suppressed favorably. As a result, the thick part of the paint layer 9a can be formed only in the upper part of the indoor horizontal pipe 4 as set.

(Modification)
(A) In each of the above-described embodiments, the first moving body 7 and the subsequent second moving body 8 may be arranged in reverse. Moreover, although the wire 11 was used as a rope body, not only the wire 11, but the 1st moving body 7 and the 2nd moving body 8 can be drawn out like a long belt, a thin string body, a wire, or a rope. I just need it.
(B) Although two of the first moving body 7 and the second moving body 8 are embodied, the moving body may be a single body or a plurality of bodies in which three or more are connected.

(C) In the case where the tail plate 23, the lateral groove portion 24, and the stabilization plate 25 are provided in Examples 18 to 20, the gravity center position eccentric portions 7B and 8B may be omitted.
(D) The subsequent second moving body 8 provided in the sixth embodiment may be formed in a tea tube shape, a cup shape, a conical shape, a hemispherical shape, or an abacus ball shape as shown in the seventh to eleventh embodiments.
(E) In Example 16 and Example 17, when any one of the ball-shaped first moving body 7 and second moving body 8 is used, the wire 11 as the rope body may be omitted. . For this reason, a mobile body becomes the form which slips through the inside horizontal pulling tube 4 independently from the entrance to an exit along the inner wall part 4a.

(F) In forming the coating layer 9a, the interior horizontal pipe 4 may be applied not only once but repeatedly. Further, when the interior horizontal pipe 4 is coated in a plurality of layers such as undercoat, intermediate coat, and finish coat, it can be performed in the same manner as described above.
(G) The indoor horizontal pipe 4 can be applied not only to a drain pipe but also to an air-conditioning duct or an exhaust duct (industrial duct, kitchen duct) that is disposed in a horizontal state.

It is the schematic which shows the lining construction example of the piping network used as the object of coating (Example 1). It is a general view of the piping network which performs coating (Example 1). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 1). (A)-(c) is a schematic diagram which shows the process in which a coating-material layer is formed in an indoor horizontal draw pipe (Example 1). (A) is a vertical cross-sectional view of the indoor horizontal pipe, (B) is a horizontal cross-sectional view of the first moving body and the second mobile body (Example 2), (C) is a vertical cross-sectional view of the indoor horizontal pipe. (D) is a cross-sectional view of the first moving body and the second moving body (Example 3). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b) is a cross-sectional view of a 1st mobile body and a 2nd mobile body (Example 4). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 5). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 6). (A) is a vertical cross-sectional view of the indoor horizontal pipe, (B) and (C) are horizontal cross-sectional views of the first mobile body and the second mobile body (Example 7), and (D) is the indoor horizontal pipe. (E) and (f) are cross-sectional views of the first moving body and the second moving body (Example 8). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 9). (A) is a vertical cross-sectional view of an indoor horizontal pipe, (B) and (C) are horizontal cross-sectional views of a first moving body and a second moving body (Example 10), and (D) is an indoor horizontal pipe. (H) and (f) are cross-sectional views of the first moving body and the second moving body (Example 11). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 12). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 13). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 14). (A) is a longitudinal cross-sectional view of an indoor horizontal pipe, (b), (c) is a cross-sectional view of a 1st moving body and a 2nd moving body (Example 15). (A)-(c) is a schematic diagram which shows the process in which a coating layer is formed in an indoor horizontal draw pipe (Example 16). (A)-(c) is a schematic diagram which shows the process in which a coating layer is formed in an indoor horizontal draw pipe (Example 17). (A) is the fracture | rupture perspective view (Example 18) of an indoor horizontal draw pipe, (B) is the fracture | rupture perspective view of the indoor horizontal draw pipe which shows the modification of Example 18. FIG. (A), (b) is the fracture | rupture perspective view of the indoor horizontal draw pipe which shows the modification of Example 18. FIG. (A), (ro) is a fracture | rupture perspective view of an indoor horizontal draw pipe (Example 19, Example 20).

Explanation of symbols

1 Vent pipe (pipe)
2 Sewage main (piping)
3 Miscellaneous drainage main (pipe)
4 indoor horizontal pipe (pipe)
6 Piping network (piping)
7 1st moving body (moving body)
7A Backward surface part 7B Center of gravity position eccentric part 8 Second moving body (moving body)
8A receding surface part 8B center of gravity position eccentric part 9 paint 9a paint layer 11 wire (strand body)
13 Paint Exuding Hole 14 Shielding Plate 16, 17 Ball 18 Cloth 18a Flare 23 Tail Plate 24 Horizontal Groove 25 Stabilizing Plate J, Q Excess Space

Claims (20)

In a piping lining device that paints the inside of a pipe provided horizontally or substantially horizontally,
A single or a plurality of moving bodies that are arranged in the pipe and move substantially concentrically along the axial direction of the pipe by a driving pressure;
A receding surface portion that is formed in the upper portion of the moving body and secures a wider surplus space portion with respect to the upper portion of the inner wall portion of the pipe;
A center-of-gravity position eccentric portion that promotes restoration against left and right swinging displacement that occurs when the moving body is moved by positioning the center of gravity of the moving body at the bottom;
When supplying the paint into the pipe and moving the moving body by the driving pressure, the moving body presses the paint against the inner wall portion of the pipe to form a paint layer,
Along with the formation of the paint layer, the paint of the thick paint layer existing in the excess space between the receding surface portion and the inner wall portion of the pipe flows down along the left and right side surfaces in the pipe due to surface tension. A pipe lining device characterized in that the thickness of the paint layer is made uniform. In a piping lining device that paints the inside of a pipe provided horizontally or substantially horizontally,
A single or a plurality of moving bodies that are arranged in the pipe and move along the axial direction of the pipe by a driving pressure,
The moving body is set to be smaller in diameter by a predetermined amount than the inner diameter of the pipe, and the lower part of the moving body is sunk in the paint supplied into the pipe so as to advance in an eccentric state in the pipe. And
When supplying the paint into the pipe and moving the moving body by the driving pressure, the moving body presses the paint against the inner wall of the pipe to form a paint layer,
Along with the formation of the paint layer, the paint of the thick paint layer existing in the surplus space between the upper part of the moving body and the inner wall part of the pipe flows down along the left and right side surfaces in the pipe due to surface tension. Then, the piping lining apparatus characterized by equalizing the thickness of the paint layer.   The moving body includes a first moving body and a second moving body, both of which are formed in a parabola shape that can be expanded and contracted by plastics such as polyethylene or fibers such as woven cloth. The piping lining device described.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a ball shape.   The piping lining device according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a bowl shape.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a bottomed cylindrical shape.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a cup shape.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a conical shape.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a hemispherical shape.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, both of which are formed in a ball shape.   The fin-shaped stabilizer which produces downward pressing force by the airflow which arises with a movement is provided in the rear part of the said mobile body, The Claim 1 or Claim 2 characterized by the above-mentioned. Piping lining equipment.   The tail part which stabilizes the said moving body with a movement and suppresses the rocking | fluctuation is provided in the rear part of the said moving body, The Claim 1 or Claim 2 characterized by the above-mentioned. Piping lining equipment.   The lateral groove part which receives the coating material in the said piping with a movement and suppresses a rocking | fluctuation on either side is provided in the side surface part of the said mobile body in the substantially horizontal state. The piping lining apparatus according to any one of 2 above.   The piping lining apparatus according to claim 1, wherein the moving body includes a first moving body and a second moving body, one of which is formed in a parabolic shape and the other is formed in a abacus ball shape.   The piping lining apparatus according to claim 1, wherein the movable body includes a ball and a cloth that wraps around the ball and has a flare portion that spreads forward.   2. The pipe according to claim 1, wherein the moving body includes a first moving body and a second moving body, and at least one of the moving bodies is formed in a mesh structure provided so that the paint can be discharged from the mesh. Lining equipment.   The piping lining apparatus according to claim 1, wherein a cable body that can be operated from the outside is connected to the moving body. In the piping lining method of painting inside the piping provided horizontally or substantially horizontally,
A step of moving a single or a plurality of moving bodies substantially concentrically along the axial direction of the pipe by a driving pressure disposed in the pipe;
Securing a wider surplus space portion between the receding surface portion formed on the upper portion of the movable body and the inner wall portion of the pipe;
A step of accelerating restoration of left and right swinging displacement that occurs when the moving body is moved by a center of gravity position eccentric portion that positions the center of gravity of the moving body below;
When supplying the paint into the pipe and moving the moving body by the driving pressure, the moving body presses the paint against the inner wall of the pipe to form a paint layer;
Along with the formation of the paint layer, the paint of the thick paint layer existing in the excess space between the receding surface portion and the inner wall portion of the pipe flows down along the left and right side surfaces in the pipe due to surface tension. A pipe lining method comprising: uniformizing the thickness of the paint layer. In the piping lining method of painting inside the piping provided horizontally or substantially horizontally,
A step of moving a single or a plurality of moving bodies along the axial direction of the pipe by a driving pressure disposed in the pipe; and
A step of setting the moving body to be smaller in diameter by a predetermined amount than the inner diameter of the pipe, and causing the lower part of the moving body to sink into the paint supplied into the pipe and proceeding in an eccentric state in the pipe; ,
When the paint is supplied into the pipe and the moving body is advanced by the driving pressure, the moving body presses the paint against the inner wall of the pipe to form a paint layer;
Along with the formation of the paint layer, the paint of the thick paint layer existing in the surplus space between the upper part of the moving body and the inner wall of the pipe flows down along the left and right side surfaces in the pipe due to surface tension. And a step of equalizing the thickness of the paint layer. The pipe lining method according to claim 18, wherein a cable body operable from the outside is connected to the moving body.

Images