JP2005155021A - Positioning implement for in-manhole sub-pipe joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily identify a position to mount an in-manhole sub-pipe joint body in a sewage inflow hole of an inner peripheral wall surface of a manhole. <P>SOLUTION: The sewage inflow hole is opened in a saddle part of the in-manhole sub-pipe joint body, and a sub-pipe connecting part, which communicates with the sewage inflow hole, is opened at a lower end. A centering opening 27, whose center corresponds to that of the sewage inflow hole opened in the inner peripheral wall surface of the manhole, is formed in a positioning implement 25 for aligning a position to fix the saddle part of the in-manhole sub-pipe joint body to the inner peripheral wall surface of the manhole. A positioning hole 30 is provided in a drilled state in a position to correspond to an insertion hole of a fixing member which is formed in the saddle part of the in-manhole sub-pipe joint body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a manhole sub pipe device for flowing sewage from a sewer sewer pipe to a sub pipe provided in a manhole, wherein the saddle portion of the manhole sub pipe joint main body communicating the sewer pipe and the inner sub pipe is connected to the manhole. It is related with the positioning tool of the sub-joint in a manhole for positioning the attachment position of the inner peripheral wall surface of a manhole when attaching and constructing to the inner peripheral wall surface of a manhole.

  In general, a concrete manhole employs a structure in which a sewage inflow hole is drilled in an inner peripheral wall surface of the manhole, and a sewage pipe is connected to the sewage inflow hole to allow the sewage to flow into the manhole. In the configuration in which sewage flows from the sewer pipe into the manhole, if there is a large drop from the position of the sewage inflow hole to the invert part at the bottom of the manhole, a so-called waterfall falls, and the invert part of the manhole There is a problem in that erosion is eroded, trash and other garbage are scattered, and noise is generated.

  Therefore, the response varies depending on the local government. For example, according to the design guidelines of the Japan Sewerage Association, a sub-pipe is provided in the manhole when the drop of sewage flowing into the manhole is 600 mm or more.

  And conventionally, the end portion of the sewer pipe formed of synthetic resin is inserted into the sewage inflow hole opened in the inner peripheral wall surface of the manhole, and the sewage inlet of the sub-joint body in the manhole is inserted into the end portion of the sewage pipe. Is connected, and the sub pipe is connected to the sub pipe joint in the manhole (see, for example, Patent Document 1).

  However, in the configuration in which the sewage inlet of the sub-joint body in the manhole is connected to the end portion of the sewer pipe without fixing the sub-joint body in the manhole to the inner peripheral wall surface of the manhole, when the gradient of the sewage pipe is large, Since the inner sub-pipe cannot be installed vertically in the manhole, and the sub-pipe is not parallel to the inner peripheral wall surface of the manhole, there is a problem that the inside of the manhole is narrowed.

  In addition, the end of the sewer pipe is inserted into the sewage inflow hole opened in the inner peripheral wall surface of the manhole, and the sub-joint body in the manhole having the saddle portion fixed to the inner peripheral wall surface of the manhole is connected to the end portion of the sewer pipe. In addition, a configuration in which the inner sub pipe is connected to the inner main pipe joint body of the manhole has been adopted (for example, see Patent Document 2).

  However, in the configuration in which the sewage inlet of the sub-joint body in the manhole is connected to the inner peripheral wall surface of the manhole at the end of the sewage pipe, if the inclination of the sewage pipe is large, the inner peripheral wall surface of the manhole There was a problem that the sewer pipe could not be connected to the sewer inlet of the fixed sub-joint body in the manhole.

Therefore, without connecting the sewage pipe directly to the sub-joint in the manhole fixed to the inner peripheral wall surface of the manhole, the sewage inlet of the sub-joint body in the manhole is made larger than the outer diameter of the sewage pipe, and the end of the sewage pipe The sewage from the sewage pipe passes through the sub pipe joint body in the manhole. A sub-joint in a manhole adapted to flow into the sub-pipe has been proposed.
Japanese Patent No. 3033078 (page 3-4, FIG. 1) Utility Model Registration No. 2592718 (Page 2, Fig. 3)

  The problem to be solved is that the end of the sewage pipe faces the sewage inlet of the sub-joint body in the manhole without connecting the sewage pipe directly to the sub-joint body in the manhole. In the configuration where the secondary pipe main body is connected to the sewage inlet, when the secondary pipe joint body in the manhole is fixed to the inner peripheral wall surface of the manhole, the sewage inlet hole drilled in the manhole and the sub pipe joint body in the manhole The water inlet must be aligned, and it is difficult to attach the sub-joint body in the manhole accurately to the inner wall surface of the curved manhole.

  The present invention has been made in view of the above-described problems, and has a simple configuration, and is provided for a sub-joint in a manhole that can easily position a mounting position of a sub-joint body in a manhole with respect to a sewage inflow hole on an inner peripheral wall surface of a curved manhole. A positioning tool is provided.

  The positioning tool for a sub-joint in a manhole according to the present invention has an auxiliary sub-manhole in which a sewage inlet is opened in a saddle portion fixed to the inner peripheral wall surface of the manhole, and a sub pipe connection portion communicating with the sewage inlet is opened at a lower end. A positioning tool for aligning the position of fixing the saddle portion of the pipe joint body to the inner peripheral wall surface of the manhole, wherein a centering opening for matching the center with the center of the sewage inflow hole opened in the inner peripheral wall surface of the manhole is provided. Further, a positioning hole is formed at a position corresponding to the insertion hole of the fixing member formed in the saddle portion of the sub-joint body in the manhole.

  Then, a sewage inflow hole is drilled in the wall surface of the manhole in accordance with the position of the sewage pipe, and the center of the manhole sewage inflow hole and the center of the centering opening of the positioning tool are substantially coincided with each other. Attach to the inner wall surface of the positioning plate with your hand, or fix it by sticking, etc., fill the positioning hole of this positioning tool with oil-based ink, etc., and display the mounting position mark on the inner wall surface . Next, remove the positioning tool from the inner peripheral wall surface of the manhole or keep it fixed to the inner peripheral wall surface, and display the insertion hole of the fixing member formed in the saddle part of the sub-joint body in the manhole on the inner peripheral wall surface Align the position of the insertion hole position of the fixed member with the positioning hole of the positioning tool or the positioning hole of the positioning tool. From the insertion hole of the fixing member of the saddle part, fix the fixing member such as an all anchor or grip anchor to the inner periphery of the manhole. The sub-joint body in the manhole is fixed to the inner peripheral wall surface of the manhole from the insertion hole of the fixing member of the saddle portion with bolts or nuts that are embedded and fixed to the wall surface and screwed into the fixing member.

  The center of the sewage inlet opening in the saddle portion of the sub-joint body in the manhole fixed to the inner peripheral wall surface of the manhole and the center of the sewage inflow hole opening in the inner peripheral wall surface of the manhole are substantially matched. In this state, the end portion of the sewage pipe faces the sewage inflow hole drilled in the manhole, and the open end of the end portion of the sewage pipe can be communicated with the sewage inlet of the sub-joint body in the manhole. Further, the inner sub pipe is connected to the sub pipe connecting portion of the manhole inner pipe joint main body, and the lower end opening of the inner sub pipe faces the position close to the invert portion of the manhole.

  Further, the positioning tool for the sub-joint in the manhole is provided with a fastening portion that is fastened along the curved surface of the inner peripheral wall surface of the manhole.

  Then, the positioning tool is fastened to the inner peripheral wall surface of the manhole by a fastening portion, and the positioning hole of this positioning tool is filled with oil-based ink or the like, thereby displaying the mark of the mounting position of the fixing member on the inner peripheral wall surface. Can be easily done.

  In addition, the centering opening of the positioning tool of the sub-joint in the manhole has substantially the same shape as the sewage inflow hole opened in the inner peripheral wall surface of the manhole.

  And the sewage inflow hole opened in the inner peripheral wall surface of the manhole is opened in the curved inner peripheral wall surface of the manhole, the horizontal line direction is slightly longer than the vertical line direction, and has a substantially elliptical shape. Since the matching opening is shaped to match the sewage inflow hole, the positioning tool can be attached to or fixed to the sewage inflow hole that is opened on the inner wall of the manhole. The centering opening of the tool and the sewage inflow hole can be reliably aligned.

  Furthermore, at least one of a horizontal line and a vertical line passing through the center line of the centering opening is formed in the positioning tool of the sub-joint in the manhole.

  Then, with reference to the center of the sewage inflow hole opened in the inner peripheral wall surface of the manhole, before or after drilling the sewage inflow hole, a horizontal line or a vertical line is previously applied to the inner peripheral wall surface of the manhole with oil-based ink or the like. By displaying, it is possible to easily align the positioning tool by aligning this horizontal line or vertical line with the horizontal line or vertical line of the positioning tool, and the positioning tool can be attached or fastened accurately to the inner wall surface of the manhole. The sub-joint body in the manhole can be securely attached to the normal position on the inner peripheral wall surface of the manhole.

  Further, the positioning tool for the sub-joint in the manhole is formed of a transparent material or a translucent material.

  In addition, it is possible to easily align the horizontal line or vertical line of the manhole viewed through the positioning tool and the horizontal line or vertical line of the positioning tool so that the positioning tool is accurately applied to the inner wall surface of the manhole. The sub-joint in the manhole can be securely attached to the normal position.

  Further, the positioning tool for the sub-joint in the manhole is formed of a sheet material that can be bent along the curved surface of the inner peripheral wall surface of the manhole.

  Then, the positioning tool can be reliably attached or fixed along the curved inner peripheral wall surface of the manhole.

  Further, the positioning tool for the sub-joint in the manhole is formed by an elastic material having a packing action.

  Then, with the positioning tool fixed to the inner peripheral wall surface of the manhole, the positioning tool is aligned with the positioning hole of the positioning tool, and is fixed to the fixing member on the inner peripheral wall surface of the manhole. A nut or bolt can be screwed into the insertion hole formed in the saddle part of the inner hole to fix the sub-joint body in the manhole to the inner wall surface of the manhole, and a positioning tool can be attached to the inner wall surface of the manhole in the manhole. By pinching and fixing, the positioning tool retains the sealing action of the water-stop effect, so that it may leak from between the inner peripheral wall surface of the manhole and the sub-joint body in the manhole and contaminate the inner peripheral wall surface of the manhole. In addition, the number of parts can be reduced.

  Furthermore, the positioning tool for the sub-joint in the manhole has one surface formed in a curved surface substantially equal to the curved surface of the inner peripheral wall surface of the manhole, and the other surface is a curved surface of the saddle portion of the sub-joint body in the manhole. Is formed on a curved surface substantially equal to

  Then, according to the size of the manhole, by selecting a positioning tool in which one surface is formed with a curved surface substantially equal to the curved surface of the inner peripheral wall surface of the manhole, the same sub-manhole subportion is provided for each manhole having a different size. Pipe fitting body can be used.

  Further, the positioning tool for a sub-joint in a manhole according to the present invention has a manhole in which a sewage inlet is opened in a saddle portion fixed to an inner peripheral wall surface of the manhole, and a sub-pipe connecting portion communicating with the sewage inlet is opened at a lower end. A positioning tool for aligning the position where the saddle portion of the inner sub-joint body is fixed to the inner peripheral wall surface of the manhole, which is made of a transparent material or a translucent material that can be bent along the curved surface of the inner peripheral wall surface of the manhole. The center of the sewage inflow hole opened on the inner peripheral wall surface of the manhole is made to coincide with the center of the manhole, and a substantially circular centering display portion having substantially the same shape as the sewage inflow hole is formed. In addition, a positioning hole is formed at a position corresponding to the insertion hole of the fixing member formed in the saddle portion of the sub-joint body in the manhole.

  Then, a sewage inflow hole is drilled in the wall of the manhole in accordance with the position of the sewage pipe, and the center of the manhole sewage inflow hole is substantially aligned with the center of the centering display portion of the positioning tool as seen through the positioning tool. Then, attach the positioning tool to the inner peripheral wall surface of the manhole by hand, or fix it by sticking, etc., paint the positioning hole of the positioning tool with oil-based ink, and fix the fixing member on the inner peripheral wall surface. Display the mounting position mark.

  At this time, the sewage inflow hole opened in the inner peripheral wall surface of the manhole has a substantially elliptical shape in which the horizontal line direction is slightly longer than the vertical line direction, and the centering opening of the positioning tool is shaped to match the sewage inflow hole. Therefore, the positioning tool can be reliably attached or fastened along the curved inner peripheral wall surface of the manhole and with its centering opening aligned with the sewage inflow hole opened in the inner peripheral wall surface of the manhole.

  Next, the positioning tool is separated from the inner peripheral wall surface of the manhole, or the mark of the insertion hole position of the fixing member displayed on the inner peripheral wall surface of the manhole or the positioning tool is fixed with the positioning tool fixed to the inner peripheral wall surface of the manhole. Align the position with the positioning hole, fix the fixing member such as post-installed anchor to the inner peripheral wall surface of the manhole, and use the bolt or nut to the fixing member from the insertion hole of the fixing member formed in the saddle part of the sub-joint body in the manhole The sub-joint body in the manhole is fixed to the inner peripheral wall surface of the manhole with this fixing member.

  In this state, the center of the sewage inflow hole opened in the inner peripheral wall surface of the manhole and the center of the sewage inlet of the saddle portion of the sub-joint body in the manhole are substantially aligned, and in this state, the sewage inflow hole drilled in the manhole The end of the sewage pipe communicates and the open end of the sewage pipe faces the sewage inlet of the sub-joint body in the manhole. An inner sub-tube is connected to the portion, and the lower end opening of the inner sub-tube is brought to a position close to the invert portion of the manhole.

  Moreover, the positioning tool of the sub-joint in the manhole is provided with a fastening portion that is detachably fastened along the curved surface of the inner peripheral wall surface of the manhole.

  Then, by attaching the positioning tool to the inner peripheral wall surface of the manhole so as to be removable, the positioning hole of the positioning tool is filled with oil-based ink or the like, and the work for displaying the mark of the mounting position of the fixing member on the inner peripheral wall surface is performed. The positioning tool can be easily removed after the mark of the mounting position is displayed on the inner peripheral wall surface. The positioning tool is fastened to the inner peripheral wall surface of the manhole with a fastening portion, and the positioning hole of this positioning tool is filled with oil-based ink, thereby making it easy to display the mark of the mounting position of the fixing member on the inner peripheral wall surface. Can be.

  According to the present invention, the center of the sewage inflow hole of the manhole and the center of the centering opening of the positioning tool can be made to substantially coincide with each other so that the positioning tool can be attached to or fixed to the inner peripheral wall surface of the manhole. By painting the positioning holes on the inner wall with oil-based ink, etc., align the fixing member mounting position mark displayed on the inner peripheral wall surface or the positioning tool positioning hole, and fix the fixing member such as post-installed anchor on the manhole. The manhole inner pipe main body can be positioned and fixed to the inner wall surface of the manhole with bolts or nuts screwed to the fixing member from the insertion hole formed in the saddle portion of the mantle inner pipe main body in the manhole. The center of the sewage inflow hole opened on the inner wall of the manhole and the center of the sewage inlet of the sub-joint body in the manhole are substantially aligned with each other. The easily fixed to the inner peripheral wall of the manhole.

  Further, by fixing the positioning tool to the inner peripheral wall surface of the manhole, it is possible to easily display the mark of the mounting position of the fixing member on the inner peripheral wall surface according to the positioning hole of the positioning tool.

  In addition, the centering opening of the positioning tool can be easily formed in the sewage inflow hole opened in the inner wall surface of the manhole, where the horizontal line direction is longer than the vertical line direction on the curved inner wall surface of the manhole and is substantially elliptical. In addition, the positioning tool can be attached or fastened to the inner peripheral wall surface of the manhole by aligning with high reliability.

  Furthermore, by marking a horizontal line or vertical line in advance on the inner peripheral wall surface of the manhole, the positioning tool can be easily aligned by aligning it with the horizontal or vertical line of the positioning tool. Thus, the positioning tool can be attached or stopped accurately, and the sub-joint in the manhole can be securely attached to the normal position.

  Furthermore, by forming the positioning tool with a sheet material that can bend along the curved surface of the inner peripheral wall surface of the manhole, the positioning tool can be reliably attached or fastened along the curved inner peripheral wall surface of the manhole.

  In addition, the positioning tool is molded from an elastic material that has a packing action, and the saddle portion of the sub-joint body in the manhole is fixed to the inner peripheral wall surface of the manhole while the positioning tool is fixed to the inner peripheral wall surface of the manhole. By doing so, the positioning tool retains the sealing action of the water stop effect, so that it does not leak from between the inner wall surface of the manhole and the sub-joint body in the manhole, and the inner wall surface of the manhole is not soiled. The number of parts can be reduced.

  In addition, by selecting a positioning tool having one surface formed on a curved surface that is substantially equal to the curved surface of the inner peripheral wall surface of the manhole in accordance with the size of the manhole, A pipe joint body can be used, the number of assortments can be reduced, it can be obtained at a low cost, inventory management is easy, and the inventory space for positioning tools can be reduced.

  Further, according to the present invention, as seen through the positioning tool, the center of the manhole's sewage inflow hole and the center of the centering display portion of the positioning tool are substantially matched, and the positioning tool is positioned along the curved inner wall surface of the manhole. Can be securely attached to or fixed to the mounting position of the sub-joint in the manhole, and the positioning hole of this positioning tool can be fixed with oil-based ink to fix the fixing member displayed on the inner peripheral wall surface. As a mark for the mounting position, a fixing member such as a post-installed anchor is fixed to the inner peripheral wall surface of the manhole, and a bolt screwed into the fixing member from the insertion hole of the fixing member formed in the saddle portion of the sub-joint body in the manhole or With the nut, the sub-joint body in the manhole can be positioned and fixed to the inner peripheral wall surface of the manhole, and the center of the sewage inflow hole opened in the inner peripheral wall surface of the manhole and the inside of the manhole And the center of Shimozuru inlet of the pipe joint body is substantially coincident, the manhole in the secondary pipe joint body can be easily fixed to the inner peripheral wall of the manhole.

  Also, by attaching the positioning tool to the inner peripheral wall surface of the manhole so as to be removable, it is easy to display the mark of the mounting position of the fixing member on the inner peripheral wall surface according to the positioning hole of the positioning tool. The positioning tool can be easily removed after the mark of the mounting position is displayed on the peripheral wall surface.

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

  The sub-joint body 10 in the manhole shown in FIG. 2 is integrally formed of synthetic resin. The joint body 10 has an annular saddle portion 13 fixed to the inner peripheral wall surface 12 of the manhole 11 on one side of the outer peripheral surface. Is formed. The outer surface side attachment surface of the saddle portion 13 is formed in a curved surface shape substantially along the inner peripheral wall surface 12 of the manhole 11, and the saddle portion 13 has an insertion hole 14 (fixing means such as a fixing bolt). (Illustrated in FIG. 8).

  A sewage inlet 15 is opened in the saddle portion 13 of the joint body 10, and a horizontal pipe portion 16 having one end communicating with the sewage inlet 15 is formed. The horizontal pipe portion 16 faces the sewage inlet 15. The diameter has been expanded. Further, a horizontal pipe cleaning port 17 is opened at the other end of the joint body 10 in the horizontal pipe portion 16 so as to face the sewage inlet 15.

  Further, the joint body 10 is formed with a vertical pipe portion 19 opened on the inner bottom surface of the horizontal pipe portion 16, and a sub pipe connection portion 20 is opened at the lower end of the vertical pipe portion 19. A cylindrical vertical tube cleaning port 22 is opened above the communicating portion between the vertical tube portion 19 and the horizontal tube portion 16.

  Further, the sewage inlet 15 having an enlarged diameter of the horizontal pipe portion 16 of the joint body 10 is formed to have a larger diameter than the sewage pipe 23 for allowing the sewage to flow into the manhole 11, and the horizontal pipe portion 16 is formed of the horizontal pipe cleaning portion. The vertical pipe portion 19 that is reduced in diameter toward the port 17 and communicates with the horizontal pipe portion 16 has an inner diameter that is the same as the inner diameter of the sewer pipe 23 or a smaller diameter than the inner diameter of the sewer pipe 23.

  Next, the horizontal pipe cleaning port 17 of the joint body 10 is closed so as to be freely opened and closed by a horizontal lid body 24 formed of synthetic resin.

  In addition, the vertical tube cleaning port 22 of the joint body 10 may be provided with a vertical lid (not shown) that closes the vertical tube cleaning port 22 in an openable and closable manner, if necessary.

  Next, as shown in FIG. 1, a positioning tool 25 for aligning the position of fixing the saddle portion 13 of the sub-joint body 10 in the manhole to the inner peripheral wall surface 12 of the manhole 11 includes an inner peripheral wall surface 12 of the manhole 11. It is formed of a thin sheet material of synthetic resin such as vinyl chloride resin that can be bent along the inner peripheral wall surface 12 of the manhole 11 so that it can be fixed along the curved surface of the manhole 11. A centering opening 27 is formed in which the center is substantially coincided with the opened sewage inflow hole 26 and the sewage inlet 15 opened in the saddle portion 13 of the sub-joint body 10 in the manhole. Since the centering opening 27 is opened in the curved inner peripheral wall surface 12 of the manhole 11, the horizontal line direction is longer than the vertical line direction and has substantially the same shape as the sewage inflow hole 26. ing.

  Further, the positioning tool 25 is provided with a positioning hole 30 at a position coinciding with the insertion hole 14 of the fixing member 28 formed in the saddle portion 13 of the sub-joint body 10 in the manhole. As the fixing member 28, a post-construction anchor such as an all anchor or a grip anchor is used.

  Further, the positioning tool 25 is formed with a fastening portion 31 formed of an adhesive, a pressure-sensitive adhesive, a double-sided adhesive tape or the like at an appropriate position of the centering opening 27, for example, a vertical position. Is fixed to the inner peripheral wall surface 12 of the manhole 11 by the fixing portion 31.

  Further, a horizontal line 32 and a vertical line 33 passing through the center of the centering opening 27 are formed on the positioning tool 25 by printing or the like. It is sufficient that at least one of the horizontal line 32 and the vertical line 33 is provided.

  Next, the operation of this embodiment will be described.

  As shown in FIGS. 3 and 4, a manhole joint 35 is formed by drilling a sewage inflow hole 26 in the manhole 11 in accordance with the position of the sewage pipe 23, and molding the rubber to hold the sewage pipe 23 in the sewage inflow hole 26. The manhole joint 35 is fixed in the sewage inflow hole 26 with mortar or the like.

  Then, as shown in FIG. 5, with reference to the center of the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11, before or after the sewage inflow hole 26 is drilled, the positioning tool 25 has a horizontal line 32. And / or vertical line 33 is formed, either horizontal line 36 and vertical line 37 or horizontal line 36 and vertical line 37 are displayed on the inner peripheral wall surface 12 of manhole 11 with oil-based ink or the like. To do.

  Next, as shown in FIG. 6, one of the horizontal line 36 and the vertical line 37 or the horizontal line 36 and the vertical line 37 marked on the inner peripheral wall surface 12 of the manhole 11, and the horizontal line 32 and the vertical line of the positioning tool 25. 33 or the horizontal line 32 and the vertical line 33 are aligned, the center of the sewage inflow hole 26 of the manhole 11 and the center of the centering opening 27 of the positioning tool 25 are substantially aligned, and the positioning tool 25 is Then, it is attached to the inner peripheral wall surface 12 of the manhole 11 while holding it down along the curved inner peripheral wall surface 12 of the manhole 11, or the positioning tool 25 is attached to the inner peripheral wall surface 12 of the manhole 11 by the fastening portion 31. Fasten. The positioning hole 25 of the positioning tool 25 is filled with oil-based ink or the like, and a mark 38 (shown in FIG. 8) is displayed at a position where the fixing member 28 is attached to the inner peripheral wall surface 12 of the manhole 11.

  Therefore, as shown in FIG. 7, when the positioning tool 25 is removed from or peeled off from the inner peripheral wall surface 12 of the manhole 11, a mark 38 appears at a position where the fixing member 28 displayed on the inner peripheral wall surface 12 of the manhole 11 is attached.

  Next, the insertion hole 14 of the fixing member 28 formed in the saddle portion 13 of the sub-joint body 10 in the manhole is used as a mark 38 indicating the position of the insertion hole 14 of the fixing member 28 displayed on the inner peripheral wall surface 12 of the manhole 11. At the same time, a fixing member 28 such as a post-installed anchor is driven in and fixed to the inner peripheral wall surface 12 of the manhole 11, and a bolt or nut is screwed into the fixing member 28 from the insertion hole 14 of the saddle portion 13 to the sub-joint body 10 in the manhole. The sub-joint body 10 in the manhole is fixed to the inner peripheral wall surface 12 of the manhole 11. In this state, the horizontal pipe cleaning port 17 of the sub-joint body 10 in the manhole is closed with the horizontal lid body 24, and the vertical pipe cleaning port 22 is closed with the vertical lid body.

  In this state, the end portion of the sewage pipe 23 inserted into the sewage inflow hole 26 of the manhole 11 faces the sewage inlet 15 of the sub-joint body 10 in the manhole.

  Further, an inner sub pipe 40 formed of a synthetic resin is connected to the sub pipe connecting portion 20 of the vertical pipe portion 19 of the manhole inner sub pipe joint body 10, and a bent pipe 41 is connected to the lower end of the inner sub pipe 40. As a result, the distal end of the bent pipe 41, which is the lower end opening of the inner sub-pipe 40, is opened in parallel with the invert section 42 in the vicinity of the invert section 42 of the manhole 11. In this state, the inner sub-pipe 40 is fixed to the inner peripheral wall surface 12 of the manhole 11 by the fixing tool 43.

  In this state, the sewage flowing through the sewage pipe 23 flows from the end of the sewage pipe 23 into the sewage inlet 15 of the sub-joint body 10 in the manhole, and the sewage flowing from the sewage inlet 15 is sub-joint in the manhole. The horizontal pipe portion 16 of the main body 10 flows out into the vertical pipe portion 19, and the sewage flows into the vertical pipe portion 19, flows from the lower end opening of the inner sub-pipe 40 to the invert portion 42 of the manhole 11, and flows out from the sewer pipe 47. The At this time, there is almost no drop from the lower end opening of the inner sub-pipe 40 to the invert part 42 of the manhole 11, and the invert part 42 is not eroded by the sewage flowing from the sewer pipe 23.

  According to this embodiment, the center of the sewage inflow hole 26 of the manhole 11 and the center of the centering opening 27 of the positioning tool 25 are substantially matched, and the positioning tool 25 is fixed to the inner peripheral wall surface 12 of the manhole 11. By doing so, positioning to fix the fixing member 28 for fixing the saddle portion 13 of the sub-joint body 10 in the manhole can be easily performed, and the insertion hole of the saddle portion 13 is fixed to the fixing member 28 fixed to the inner peripheral wall surface 12 of the manhole 11. The sub-joint body 10 in the manhole can be fixed to the inner peripheral wall surface 12 of the manhole 11 with bolts or nuts screwed to the fixing member 28 from the center 14, and the center of the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11 In the state where the center of the sewage inlet 15 of the saddle portion 13 of the sub-joint body 10 in the manhole is substantially matched, the sub-joint body 10 in the manhole can be easily fixed to the inner peripheral wall surface 12 of the manhole 11.

  In addition, the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11 is opened in the curved inner peripheral wall surface 12 of the manhole 11, and the horizontal line direction is longer than the vertical line direction and is substantially elliptical. Since the centering opening 27 of the positioning tool 25 is shaped to match the sewage inflow hole 26, the positioning tool 25 has a sewage inflow hole in which the centering opening 27 is opened in the inner peripheral wall surface 12 of the manhole 11. The positioning tool 25 can be fixed and fixed securely.

  In the above-described embodiment, the positioning hole 25 of the positioning tool 25 that fixes the sub-joint body 10 in the manhole to the inner peripheral wall surface 12 of the manhole 11 is filled with oil-based ink or the like to fix the fixing member 28 on the inner peripheral wall surface 12. After attaching the mark 38 to the mounting position, the positioning tool 25 is peeled off, the insertion hole 14 of the saddle portion 13 of the sub-joint body 10 in the manhole is aligned with the mark 38, and the sub-joint body 10 in the manhole is fixed with the fixing member 28. The fixing member 28 is fixed to the inner peripheral wall surface 12 of the manhole 11 from the positioning hole 30 of the positioning tool 25 in a state where the positioning tool 25 is fixed to the inner peripheral wall surface 12 without peeling off. The sub-joint body 10 in the manhole can also be attached to the inner peripheral wall surface 12 of the manhole 11 with a bolt or nut screwed into the insertion hole 14 of the saddle portion 13 to 28.

  Further, the positioning tool 25 is formed of a transparent material or a semi-transparent material so that the horizontal line displayed on the inner peripheral wall surface 12 of the manhole 11 is seen through the surface of the positioning tool 25 fixed to the inner peripheral wall surface 12 of the manhole 11. 36 and the vertical line 37 and the horizontal line 32 and the vertical line 33 of the positioning tool 25 can be easily aligned, the positioning tool 25 can be mounted accurately and quickly, and the sub-joint body 10 in the manhole is securely mounted at the normal position. be able to.

  Further, the positioning tool 25 is formed of an elastic material having a packing action, so that the positioning tool 25 is fixed to the positioning hole 30 of the positioning tool 25 while being fixed to the inner peripheral wall surface 12 of the manhole 11. 28 is fixed to the inner peripheral wall surface 12 of the manhole 11, and the sub-joint in the manhole is inserted with a bolt or nut screwed into the fixing member 28 from the insertion hole 14 formed in the saddle portion 13 of the sub-joint body 10 in the manhole. By fixing the main body 10 to the inner peripheral wall surface 12 of the manhole 11, the positioning tool 25 maintains the packing action of the water stop effect, so between the inner peripheral wall surface 12 of the manhole 11 and the sub-joint main body 10 in the manhole. Leakage does not occur and the inner peripheral wall surface 12 of the manhole 11 is not soiled, and it is not necessary to separately provide a water-stopping packing, thereby reducing the number of parts.

  In the embodiment, the centering opening 27 of the positioning tool 25 is opened to the curved inner peripheral wall surface 12 of the manhole 11, and the sewage inflow hole 26 having a substantially elliptical shape in which the horizontal line direction is longer than the vertical line direction. The centering opening 27 of the positioning tool 25 and the sewage inflow hole 26 of the manhole 11 are easily aligned, but the centering opening 27 of the positioning tool 25 is not necessarily elliptical. There is no need, and a circular hole that can be easily drilled can be used.

  Next, another embodiment will be described with reference to the drawings.

  The positioning tool 25 can also be configured to serve as a spacer, and there are multiple types according to the size of the manhole 11, which is molded from a hard body such as vinyl chloride resin or an elastic body such as rubber. Yes. As shown in FIG. 10, the positioning tool 25 has an outer surface 45 that presses against the inner peripheral wall surface 12 in accordance with the manholes 11 having different sizes. A curved surface that is substantially the same as the curved surface is formed, and the other inner surface 46 is formed as a curved surface that is substantially the same as the curved surface of the mounted surface of the saddle portion 13 of the sub-joint body 10 in the manhole.

  The positioning tool 25 is formed with a centering opening 27 that is aligned with the center of the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11, and the sub-joint body 10 in the manhole. A positioning hole 30 is formed at a position corresponding to the insertion hole 14 of the fixing member 28 formed in the saddle portion 13.

  The positioning tool 25 has one surface 45 fixed along the curved surface of the inner peripheral wall surface 12 of the manhole 11.

  Further, the positioning tool 25 has a sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11 and a sewage inlet 15 opened in the saddle portion 13 of the sub-joint body 10 in the manhole, and the center is substantially coincided with the saddle. A centering opening 27 that is substantially the same as the sewage inlet 15 that opens in the portion 13 is formed therethrough. Since the centering opening 27 is opened on the curved inner peripheral wall surface 12 of the manhole 11, the horizontal line direction is longer than the vertical line direction and the sewage inflow hole 26 has a substantially elliptical shape. It has substantially the same shape as the hole 26.

  Further, in the positioning tool 25, at least one of a horizontal line and a vertical line or a horizontal line and a vertical line passing through the center of the centering opening 27 is formed on the other surface 46.

  Further, the positioning tool 25 can be formed of a transparent material or a translucent material.

  Other configurations are the same as those of the embodiment shown in FIGS.

  Then, the positioning tool 25 is filled in the positioning hole 30 formed in the inner peripheral wall surface 12 of the manhole 11 with oil-based ink or the like, and a mark 38 (see FIG. 8) is attached to the position where the fixing member 28 is attached to the inner peripheral wall surface 12 of the manhole 11. The fixing member 28 is fixed to the inner peripheral wall surface 12 of the manhole 11 in accordance with the mark 38.

  Further, in accordance with the size of the manhole 11, a positioning tool 25 having one surface 45 formed on a curved surface substantially equal to the curved surface of the inner peripheral wall surface 12 of the manhole 11 is selected, and the inner peripheral wall surface 12 of the manhole 11 is selected. The sewage inflow hole 26 opened at the center and the centering opening 27 of the positioning tool 25 are substantially aligned, and one surface 45 is fixed to the inner peripheral wall surface 12 of the manhole 11 and fixed to the inner peripheral wall surface 12 of the manhole 11 The member 28 is inserted into the positioning hole 30 of the positioning tool 25.

  Next, the saddle portion 13 of the sub-joint body 10 in the manhole is placed on the other surface 46 of the positioning tool 25, and the fixing member 28 inserted through the positioning hole 30 of the positioning tool 25 from the insertion hole 14 of the saddle portion 13 is provided. The saddle portion 13 is fixed to the inner peripheral wall surface 12 of the manhole 11 by screwing bolts or nuts.

  The positioning tool 25 of this embodiment can use the same sub-joint body 10 in the manhole for the manholes 11 of different sizes, can reduce the number of assortment items, can be obtained at a low cost and is easy to manage inventory, The inventory space for the positioning tool 25 can be reduced.

  Further, the positioning tool 25 is molded by an elastic body, so that the positioning tool 25 itself has a function of water-stopping packing, and is disposed between the positioning tool 25 and the inner peripheral wall surface 12 of the manhole 11. The water packing can be omitted in some cases, the workability is improved, the construction can be performed at a low cost, and the water leakage can be prevented more reliably by using the water-stopping packing together. There is no contamination with leaked sewage.

  Other functions of this embodiment are the same as those of the embodiment shown in FIGS.

  Furthermore, another embodiment of the present invention will be described.

  In the above embodiment, the centering opening 27 is perforated and formed in the positioning tool 25. However, in this embodiment, the positioning tool 25 is not perforated but is used as a centering display part.

  This embodiment will be described with reference to FIG.

  The positioning tool 50 is formed of a sheet material formed of a transparent material that can be bent along the curved surface of the inner peripheral wall surface 12 of the manhole 11 shown in FIG. 2 or a synthetic resin material such as a translucent vinyl chloride resin. ing.

  In the positioning tool 50, the center of the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11 is made to coincide with the center, and the horizontal line direction has substantially the same shape as the sewage inflow hole 26 longer than the vertical line direction. A substantially circular center alignment display portion 51 is formed by printing or the like.

  Further, the positioning tool 50 is provided with a positioning hole 30 at a position corresponding to the insertion hole 14 of the fixing member 28 (shown in FIG. 8) formed in the saddle portion 13 of the sub-joint body 10 in the manhole. Yes.

  Further, the positioning tool 50 is formed with a fastening portion 31 formed of an adhesive, a pressure-sensitive adhesive, or a double-sided adhesive tape at the upper and lower positions of the centering display portion 51. Is fixed to the inner peripheral wall surface 12 of the manhole 11.

  Further, at least one of a horizontal line 32 and a vertical line 33 passing through the center of the centering display unit 51 is formed on the positioning tool 50 by printing or the like.

  Other configurations are the same as those of the embodiment shown in FIGS.

  Next, the operation of this embodiment will be described.

  Seeing through the positioning tool 50, the center of the sewage inflow hole 26 drilled in the inner peripheral wall surface 12 of the manhole 11 and the center of the centering display portion 51 of the positioning tool 50 are made to substantially coincide with each other. Securely position the positioning tool 50 along the curved inner peripheral wall surface 12 of the manhole 11 by holding it against the inner peripheral wall surface 12 of the manhole 11 by hand, or by attaching it to the fixing portion 31 by sticking or the like. Can be attached to.

  At this time, the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11 has a substantially elliptical shape in which the horizontal line direction is slightly longer than the vertical line direction. Since the shape matches the hole 26, the positioning tool 50 is applied to the inner peripheral wall surface 12 of the manhole 11 so that the centering display portion 51 is aligned with the sewage inflow hole 26 opened in the inner peripheral wall surface 12 of the manhole 11. The positioning tool 50 can be positioned reliably.

  Next, the positioning hole 30 of the positioning tool 50 is filled with oil-based ink or the like, and a mark indicating the mounting position of the fixing member is displayed on the inner peripheral wall surface 12.

  Further, the positioning tool 50 is removed from or peeled from the inner peripheral wall surface 12 of the manhole 11, and the fixing member insertion hole formed in the saddle portion of the sub-joint body in the manhole is inserted into the fixing member insertion hole displayed on the inner peripheral wall surface. Align the position mark with the positioning hole of the positioning tool, screw the bolt or nut from the insertion hole of the fixing member of the saddle part to the fixing member fixed to the inner peripheral wall surface of the manhole, and use this fixing member to manhole The inner sub-joint body is fixed to the inner peripheral wall surface of the manhole.

  Other functions are the same as those of the embodiment shown in FIGS.

It is a front view of the positioning tool of the sub-joint in a manhole which shows one embodiment of this invention. It is a vertical side view of the state which attached the sub pipe joint in a manhole to the manhole. It is a vertical side view of the state which opened the sewage inflow hole in the manhole. It is a cross-sectional top view same as the above. It is an inner surface figure of the manhole of the state which formed the horizontal line and the vertical line in the inner peripheral wall surface of a manhole. It is an internal view of the manhole of the state which fixed the positioning tool to the manhole. It is an internal view of the manhole of the state which peeled the positioning tool same as the above. It is an internal view of a manhole which shows the state which attached the sub pipe joint main body in a manhole to the manhole. It is a cross-sectional top view same as the above. It is a cross-sectional top view which shows the state which attached the sub pipe joint main body in a manhole to the manhole using the front of the positioning tool which shows other embodiment of this invention. It is a front view of the positioning tool which shows other embodiment of this invention.

Explanation of symbols

10 Main fitting body in manhole
11 Manhole
12 Inner wall surface
13 Saddle
14 Insertion hole
15 Sewage inlet
20 Secondary pipe connection
25 Positioning tool
26 Sewage inlet
27 Centering opening
28 Fixing member
30 Positioning hole
31 Fastening part
32 horizontal lines
33 Vertical line
36 horizon
37 Vertical line
45 One side
46 The other side
50 Positioning tool
51 Centering display

Claims (10)

Open the sewage inlet to the saddle part fixed to the inner peripheral wall surface of the manhole and open the secondary pipe connection part communicating with the sewage inlet at the lower end. A positioning tool for adjusting a position to be fixed to a wall surface,
Forming a centering opening that matches the center with the center of the sewage inflow hole opened in the inner peripheral wall surface of the manhole;
A positioning tool for a sub-joint in a manhole, wherein a positioning hole is formed at a position corresponding to an insertion hole of a fixing member formed in a saddle portion of the sub-joint body in the manhole.   The positioning tool for a sub-joint in a manhole according to claim 1, further comprising a fastening portion that is fastened along the curved surface of the inner peripheral wall surface of the manhole.   The positioning tool for a sub-joint in a manhole according to claim 1 or 2, wherein the centering opening has substantially the same shape as a sewage inflow hole opened in an inner peripheral wall surface of the manhole.     4. A positioning tool for a sub-joint in a manhole according to claim 1, wherein at least one of a horizontal line and a vertical line passing through the center of the centering opening is formed.   The positioning tool for a sub-joint in a manhole according to any one of claims 1 to 4, wherein the positioning tool is formed of a transparent material or a translucent material.   The positioning tool for a sub-joint in a manhole according to any one of claims 1 to 5, wherein the positioning tool is formed of a sheet material that can be bent along a curved surface of an inner peripheral wall surface of the manhole.   The positioning tool for a sub-joint in a manhole according to any one of claims 1 to 6, wherein the positioning tool is formed of an elastic material having a packing action.   One surface is formed in a curved surface substantially equal to the curved surface of the inner peripheral wall surface of the manhole, and the other surface is formed in a curved surface substantially equal to the curved surface of the saddle portion of the sub-joint body in the manhole. The positioning tool for a sub-joint in a manhole according to any one of claims 1 to 5 or 7. Open the sewage inlet to the saddle part fixed to the inner peripheral wall surface of the manhole and open the secondary pipe connection part communicating with the sewage inlet at the lower end. A positioning tool for adjusting a position to be fixed to a wall surface,
Formed of a sheet material formed of a transparent material or a translucent material that can be bent along the curved surface of the inner peripheral wall surface of the manhole,
The center of the sewage inflow hole opened on the inner peripheral wall surface of the manhole is made to coincide with the center of the sewage inflow hole, and a substantially circular centering display portion having substantially the same shape as the sewage inflow hole is formed.
A positioning tool for a sub-joint in a manhole, wherein a positioning hole is formed at a position corresponding to an insertion hole of a fixing member formed in a saddle portion of the sub-joint body in the manhole.   10. The positioning tool for a sub-joint in a manhole according to claim 9, further comprising a fastening portion that is detachably fastened along the curved surface of the inner peripheral wall surface of the manhole.

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