JP6313504B1 - Resin pipe having buried heterogeneous pipe, manufacturing method thereof, and pipe correction method using resin pipe having buried heterogeneous pipe - Google Patents

Abstract

A resin pipe having a buried dissimilar pipe that makes it easy to incorporate a check valve or the like into the wall of the resin pipe. A dissimilar tube 18 having a locking portion formed on an outer wall in a through-hole of a resin block 16 having a through-hole whose diameter is expanded at least at one end side, the locking portion is extended to the through-hole of the resin block 16. The embedding block in which the dissimilar pipe 18 is fixed to the resin block 16 by the fixing resin that is arranged so as to be located in the diameter portion and is filled in the enlarged diameter portion of the through hole is formed on the wall portion and has a large diameter on both ends. The embedded block is fixed to the resin tube 14 by a fixing resin that is disposed in the insertion hole of the resin tube 14 having the insertion hole to be filled and is filled in the large diameter portion of the insertion hole. [Selection] Figure 7

Description

  The present invention relates to a resin pipe having a buried heterogeneous pipe, a manufacturing method thereof, and a pipe correction method using the resin pipe having a buried heterogeneous pipe.

  As a method of correcting an existing pipe such as a drain pipe made of concrete, a method of inserting a resin pipe for correction into the existing pipe is known (Patent Document 1: Japanese Patent Laid-Open No. 2000-283349).

JP 2000-283349 A

  In the pipe correction method disclosed in Patent Document 1, in order to position the resin pipe for correction, it may be required to inject and fill the grout material into the gap between the existing pipe and the inserted resin pipe. In order to inject the grouting material into the gap, it is conceivable that the downstream end portions of the existing pipe and the resin tube are appropriately closed with a lid material, and the grouting material is poured into the clearance from the upstream side. However, in this case, there is a problem that the grout material is difficult to be densely filled.

As another method of injecting the grout material into the gap, a method of incorporating a check valve into the wall portion of the resin tube and injecting the grout material into the gap through the check valve by a nozzle device is conceivable.
However, when the inventor examined, the subject that it was not easy to incorporate dissimilar members, such as a non-return valve, in the wall part of a resin pipe arose.

  The present invention has been made to solve the above-described problem, and makes it easy to incorporate a check valve or the like in the wall of the resin tube, a resin tube having a buried dissimilar tube, a manufacturing method thereof, and the buried dissimilar material An object of the present invention is to provide a pipe correction method using a resin pipe having a pipe.

In order to achieve the above object, the present invention comprises the following arrangement.
That is, the resin pipe having a buried different pipe according to the present invention is a resin pipe having a through-hole whose diameter is enlarged at least at one end side. The dissimilar pipe is fixed to the resin block by a fixing resin that is disposed so that the stop portion is positioned within the enlarged diameter portion of the through hole of the resin block, and is filled in the enlarged diameter portion of the through hole. The embedded block is disposed in the insertion hole of the resin tube having an insertion hole having a large diameter at both ends on the wall portion, and the embedding block is formed by the fixing resin filled in the large diameter portion of the insertion hole. The working block is fixed to the resin pipe.

The locking portion can be formed by a protrusion.
Chamfering a portion of the wall portion of the embedded block facing the large diameter portion of the insertion hole, and filling the fixing resin into a space generated by chamfering the wall portion of the embedded block It is preferable to do so.
The dissimilar tube can be a screw tube having an inner wall formed with an internal thread.

A check valve can be screwed onto the dissimilar pipe.
Alternatively, a screw rod can be screwed onto the dissimilar tube.
A plurality of the embedding blocks are embedded in the wall portion of the resin pipe, a check valve is screwed onto the heterogeneous pipe of any of the embedding blocks of the plurality of embedding blocks, and A threaded rod can be screwed onto the dissimilar tube.
It is preferable that the resin block, the resin tube, and the fixing resin are the same type of resin.

  According to the present invention, there is provided a method of manufacturing a resin pipe having a buried dissimilar pipe, wherein the dissimilar pipe having a through-hole formed in the outer wall of the resin block having a through-hole whose diameter is expanded at least on one end side, The dissimilar pipe is formed in the resin block by disposing the engaging portion so as to be positioned in the enlarged diameter portion of the through hole of the resin block and filling the enlarged diameter portion of the through hole with a fixing resin. A step of forming an embedding block fixed to the wall, a step of disposing the embedding block in the insertion hole of a resin tube having insertion holes whose both ends are large in diameter on the wall, and a large diameter portion of the insertion hole Filling a resin for fixing and fixing the embedded block to the resin tube.

  Chamfering the wall portion of the embedding block, which is the portion facing the large-diameter portion of the insertion hole when arranged in the insertion hole, and chamfering the wall portion of the embedding block with the fixing resin. It is preferable to fill the space generated by the above.

In the pipe correction method according to the present invention, the resin pipe having the buried different kind pipe is disposed in the existing pipe, and the grout is formed in the space between the resin pipe having the buried different kind pipe and the existing pipe through the check valve. It is characterized by filling the material.
Alternatively, the resin pipe having the buried different pipe is disposed in the existing pipe, and the screw rod protrudes from the outer wall of the resin pipe having the buried different pipe so as to contact the inner wall of the existing pipe to have the buried different pipe. The resin pipe is prevented from rising, and a grout material is filled in a space between the resin pipe having the buried dissimilar pipe and the existing pipe.

  Alternatively, a resin pipe having the buried dissimilar pipe is disposed in the existing pipe, and the screw rod is protruded from an outer wall of the resin pipe having the buried dissimilar pipe so as to contact the inner wall of the existing pipe, thereby The resin pipe is prevented from being lifted, and a grout material is filled in the space between the resin pipe having the buried dissimilar pipe and the existing pipe through the check valve.

According to the present invention, since the embedded block in which the different type tube is incorporated into the small resin block is formed and this embedded block is incorporated into the resin tube, for example, even if the resin tube has a diameter of 1000 mm or more, the different type tube Can be easily incorporated.
In addition, since the dissimilar pipe is provided with a locking portion, and this locking portion is positioned in the fixing resin, the dissimilar pipe can be prevented from coming off and prevented from rotating. If this dissimilar tube is a threaded tube, a check valve and a screw rod can be easily attached in the dissimilar tube.
Moreover, the existing pipe can be easily corrected by using the resin pipe having the buried different pipe according to the present invention.

It is explanatory drawing sectional drawing of the resin pipe | tube which has an embedded different kind pipe | tube. It is an expanded sectional view in the dotted line circle of FIG. It is explanatory drawing of a resin block. It is explanatory drawing of a different kind pipe | tube (for example, metal pipe). It is explanatory drawing of an embedding block. It is explanatory drawing which shows the other example of an embedding block. It is explanatory sectional drawing which shows a pipe correction method. It is explanatory sectional drawing which shows the other example of the pipe correction method.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an explanatory cross-sectional view of a resin pipe 10 having an embedded different kind of pipe. FIG. 2 is an enlarged cross-sectional view in the dotted circle of FIG. 3 to 5 are explanatory views showing the manufacturing process of the embedded block 12.
A resin pipe 10 having an embedded different type pipe according to the present embodiment is one in which an embedded block 12 is incorporated in a wall portion of a resin pipe 14.

  The resin tube 14 is made of a resin such as high-density polyethylene and has a diameter of about 300 to 3000 mm, a length of about 5000 mm, and a thickness of about 10 to 150 mm. The resin tube 14 is formed with a receiving port at one end and an insertion port at the other end (not shown), and a plurality of resin tubes 14 can be connected as appropriate by inserting the insertion port into the receiving port with respect to the adjacent resin tube. It has become.

Hereinafter, the resin pipe 10 having an embedded different kind of pipe will be described together with its manufacturing method.
FIG. 3 is an explanatory view of the resin block 16, FIG. 3A is a plan view thereof, and FIG. 3B is a sectional view thereof.
The resin block 16 is made of high-density polyethylene, which is the same resin as the resin tube 14, and has a cylindrical shape having a thickness (height) substantially the same as the thickness of the wall portion of the resin tube 14.

At the center of the resin block 16, a through hole 17 having an enlarged diameter at one end side is formed. The through hole 17 can be formed using a drill. Moreover, the enlarged diameter part (taper part) 17a of the one end side of the through-hole 17 can be formed by cutting.
An enlarged diameter portion can also be provided on the other end side of the through hole 17 (not shown).

4A and 4B are explanatory views of the heterogeneous tube 18, FIG. 4A is a plan view thereof, and FIG. 4B is a cross-sectional view thereof.
The dissimilar pipe 18 is a metal pipe made of, for example, steel, and has a cylindrical shape having an outer diameter that is the same as the inner diameter of the through hole 17. The height (length) is substantially the same as the thickness of the resin block 16. It is height.

On the outer wall of the dissimilar pipe 18, protrusions 19 serving as locking portions are formed at four locations by welding or cutting. The locking portion may be a recess instead of the protrusion 19.
In this embodiment, the heterogeneous pipe 18 is formed as a screw pipe having an internal thread formed on the inner wall.
The dissimilar pipe 18 may be made of a resin different from the resin block 16 or made of ceramic, and the material is not particularly limited.

5A and 5B are explanatory views of the embedding block 12, FIG. 5A is a plan view thereof, and FIG. 5B is a cross-sectional view thereof.
In the embedded block 12, the dissimilar pipe 18 is arranged in the through hole 17 of the resin block 16 so that the protrusion 19 is located in the enlarged diameter portion 17 a of the through hole 17, and the enlarged diameter portion of the through hole 17. It is formed by fixing the dissimilar tube 18 to the resin block 16 by filling the molten fixing resin 20 in 17 a and then cooling to solidify the fixing resin 20. Both ends of the heterogeneous tube 18 are substantially flush with the surface of the resin block 16.

Since the dissimilar pipe 18 is formed with a protrusion 19, it is prevented from coming off from the resin block 16, and is prevented from rotating with respect to the resin block 16 and fixed to the resin block 16.
Even when the concave portion is formed as the locking portion instead of the protruding portion 19, the fixing resin enters the concave portion, so that the dissimilar pipe 18 can be prevented from being detached from the resin block 16 and prevented from rotating.

  In general, the adhesion between the metal and the resin is poor, but in the present embodiment, a locking portion is provided on the outer wall of the dissimilar pipe 18, and the locking portion is covered with the fixing resin 20, or the locking portion is covered. In addition, since the fixing resin 20 is made to enter, even if the metal different type pipe 18 is used, the different type pipe 18 and the resin block 16 can be mechanically well bonded. If high-density polyethylene, which is the same resin as the resin block 16, is used for the fixing resin 20, the bonding between the resin block 16 and the fixing resin 20 is also good.

A member can be appropriately screwed into the dissimilar tube 18. In the embodiment shown in FIGS. 1 and 5, a known check valve 21 is screwed and attached.
In FIG. 6A and FIG. 6B, the different kind pipe | tube 18 is used as the different kind pipe | tube 18 for attaching the screw rod 23 (FIG. 8).

The embedded block 12 formed as described above is incorporated into the resin tube 14.
In the present embodiment, one or a plurality of insertion holes 24 having large diameters at both ends are formed at appropriate positions on the wall portion of the resin tube 14. Then, the embedding block 12 is disposed in the insertion hole 24, the molten fixing resin 25 is filled in the large diameter portion 24a of the insertion hole 24, and then cooled to solidify the fixing resin 25. The embedded block 12 is fixed to the resin tube 14. Thereby, the resin pipe | tube 10 which has an embedded dissimilar pipe | tube can be formed. The insertion hole 24 can be formed by a drill, and the large diameter portion can be formed by cutting.

  As shown in FIG. 2, when the embedded block 12 is disposed in the insertion hole 24, the wall portion of the embedded block 12, which is a portion facing the large diameter portion 24 a of the insertion hole 24, is chamfered to fix the fixing resin 25. It is preferable to fill the space generated by chamfering the wall portion of the embedding block 12. Thereby, since the area of the joint surface of the fixing resin 25 is increased, the bonding of the fixing resin 25 to the resin tube 14 and the embedded block 12 can be strengthened.

  In the case where the resin pipe 10 having the buried different pipe is used as a correction pipe of the existing pipe, a plurality of embedded blocks 12 are embedded at appropriate positions on the wall portion of the resin pipe 14, and any one of the plurality of embedded blocks 12 is used. It is preferable that the check valve 21 is screwed to the different pipe 18 of the embedded block 12 and the screw rod 23 is screwed to the different pipe 18 of any other embedded block 12.

FIG. 7 is an explanatory view showing a method of correcting the aged existing pipe 27 with the resin pipe 10 having the buried different type pipe according to the present embodiment.
First, the resin pipe 10 having an embedded different kind of pipe is disposed in the existing pipe 27. Then, the nozzle device 28 for injecting the grout material is attached to the dissimilar pipe 18, and the lever 29 of the nozzle device 28 is operated to pass through the check valve 21 from the nozzle device 28 and the resin pipe 10 having the embedded dissimilar pipe and the existing pipe. The existing pipe 27 can be corrected by filling the space between it and the grout material 30.
Since the resin pipe 10 having the buried different pipe does not have a protrusion on the outer wall, it can be easily inserted into the existing pipe 27.

FIG. 8 is an explanatory view showing another method of correcting the aged existing pipe 27 with the resin pipe 10 having the buried different type pipe according to the present embodiment.
First, the resin pipe 10 having an embedded different kind of pipe is disposed in the existing pipe 27. Next, the screw rod 23 is screwed into the heterogeneous tube 18 from the inside, protrudes from the outer wall of the resin tube 10 having the embedded heterogeneous tube, and is brought into contact with the upper surface of the inner wall of the existing tube 27, thereby having the embedded heterogeneous tube. The resin tube 10 is positioned and the floating is prevented. Next, the existing pipe 27 can be corrected by filling the space between the existing pipe 27 and the resin pipe 10 having the buried different pipe with the grout material 30.

  As described above, by supporting the resin pipe 10 having the buried different type pipe by the screw rod 23, it is possible to prevent the resin pipe 10 having the buried different type pipe from being lifted by buoyancy when the grout material 30 is injected. it can. The grout material 30 is injected by a nozzle device 28 from a check valve 21 provided in a different pipe 18 of the embedded block 12 shown in FIG. It is preferable.

DESCRIPTION OF SYMBOLS 10 Resin pipe | tube with an embedded dissimilar pipe 12 Embedding block 14 Resin pipe 16 Resin block 17 Through-hole 17a Expanding part 18 Dissimilar pipe 19 Protruding part 20 Fixing resin 21 Check valve 23 Screw rod 24 Insertion hole 24a Large diameter part 25 Fixing Resin 27 Existing pipe 28 Nozzle device 29 Lever 30 Grout material

Claims (13)

In the resin block having a through-hole whose diameter is expanded at least on one end side, a dissimilar pipe having a locking portion formed on the outer wall is formed in the through-hole, and the locking portion is placed in the enlarged diameter portion of the through-hole of the resin block. An embedded block in which the dissimilar pipe is fixed to the resin block by a fixing resin that is arranged so as to be positioned in the through-hole and filled in the enlarged diameter portion of the through hole,
In the wall portion, the resin pipe having an insertion hole with both ends having large diameters is disposed in the insertion hole,
A resin pipe having a buried dissimilar pipe, wherein the embedding block is fixed to the resin pipe by a fixing resin filled in a large-diameter portion of the insertion hole.   The resin pipe having an embedded different kind of pipe according to claim 1, wherein the locking portion is a protrusion.   A portion of the wall portion of the embedded block facing the large-diameter portion of the insertion hole is chamfered, and the fixing resin is also generated in a space generated by chamfering the wall portion of the embedded block. The resin pipe having an embedded different kind of pipe according to claim 1 or 2, wherein the pipe is filled.   The resin pipe having an embedded different kind of pipe according to any one of claims 1 to 3, wherein the different kind of pipe is a screw pipe having an inner wall formed with an internal thread.   The resin pipe having an embedded different kind of pipe according to claim 4, wherein a check valve is screwed to the different kind of pipe.   The resin pipe having an embedded different kind pipe according to claim 4, wherein a screw rod is screwed onto the different kind pipe.   A plurality of the embedding blocks are embedded in the wall portion of the resin pipe, and a check valve is screwed to the dissimilar pipe of any of the plurality of embedding blocks, and any other embedding block 5. The resin pipe having an embedded different kind pipe according to claim 4, wherein a screw rod is screwed to said different kind pipe.   The resin tube having an embedded different kind of pipe according to any one of claims 1 to 6, wherein the resin block, the resin pipe, and the fixing resin are made of the same type of resin. In the resin block having a through-hole whose diameter is expanded at least on one end side, a dissimilar pipe having a locking portion formed on the outer wall is formed in the through-hole, and the locking portion is placed in the enlarged-diameter portion of the through-hole of the resin block. A step of forming an embedded block in which the dissimilar pipe is fixed to the resin block by filling the enlarged diameter portion of the through-hole with a fixing resin;
A step of disposing the embedding block in the insertion hole of the resin pipe having an insertion hole with both ends having large diameters on the wall; and
A method for producing a resin pipe having a buried dissimilar pipe, comprising: filling a large-diameter portion of the insertion hole with a fixing resin, and fixing the buried block to the resin pipe.   Chamfering the wall portion of the embedding block, which is the portion facing the large-diameter portion of the insertion hole when arranged in the insertion hole, and chamfering the wall portion of the embedding block with the fixing resin. 9. The method for producing a resin pipe having a buried dissimilar pipe according to claim 8, wherein the space formed by the filling is also filled.   A resin pipe having an embedded different kind pipe according to claim 5 is disposed in an existing pipe, and a grout material is filled into the space between the resin pipe having the buried different kind pipe and the existing pipe through the check valve. The pipe correction method characterized by this.   A resin pipe having an embedded dissimilar pipe according to claim 6 is disposed in the existing pipe, and the screw rod protrudes from an outer wall of the resin pipe having the embedded dissimilar pipe and is brought into contact with the inner wall of the existing dissimilar pipe. A pipe rectification method characterized by preventing a resin pipe having a gap from rising and filling a space between the resin pipe having the buried different pipe and the existing pipe with a grout material.   A resin pipe having an embedded dissimilar pipe according to claim 7 is disposed in the existing pipe, and the screw rod protrudes from an outer wall of the resin pipe having the embedded dissimilar pipe and is brought into contact with the inner wall of the existing dissimilar pipe. And a grout material is filled in a space between the resin pipe having the buried different pipe and the existing pipe through the check valve.

Images