JP2000352103A - Vertical pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vetical pipe capable of facilitating construction work for installing it inside of a manhole so as to connect a discharging port to a sewerage main pipe. SOLUTION: A vertical pipe 1 is equipped with a spiral guide line for making wastewater curvedly flow down inside of a pipe main body 11, a discharging port 121 is provided at the lower end of the pipe main body 11 so that it is projected to the outside and, at the same time, an end connecting socket 122 of an outlet pipe R connecting the discharging port 121 to a sewerage main pipe or a joint is so provided that it is projected to the outside of the circumference of the discharging port 121.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical pipe provided with a spiral guideway therein, which is easily installed in a manhole so as to be connected to a sewer main pipe.

[0002]

2. Description of the Related Art Conventionally, in order to prevent the inside from being damaged by sewage flowing down naturally in a manhole, for example, as disclosed in JP-A-8-41915, a vertical pipe for sewage is installed in a manhole. Drop shaft) has been implemented.

[0003] Such a vertical pipe for sewage, for example, as shown in Fig. 3, has a straight tubular pipe main body part a with a constant inner diameter and prevents sewage from flowing down linearly into the pipe main body part a. It has spiral guide paths b and c for guiding spirally, and the sewage is attenuated by sewage flowing down spirally along the spiral guide paths b and c. The structure is such that it can flow out from a discharge port d provided integrally with the lower end of the tube main body a.

In order to form a sewage pipeline using such a conventional vertical pipe for sewage, construction is generally performed according to the following construction sequence. Hereinafter, the construction order will be described with reference to FIGS. 4 (a) to 4 (f) and FIG.

[0005] As shown in FIG.
Drilling. As shown in FIG.
And the sewer main pipe g are connected by a sheath pipe s. FIG. 4 (c)
As shown in the figure, after the outflow pipe r is piped into the sheath pipe s, the gap between the sheath pipe s and the outflow pipe r is filled with mortar. FIG.
As shown in (d) and FIG. 5, a vertical pipe p for sewage is installed in the manhole m, and the position between the discharge port d and the end of the outflow pipe r is adjusted. As shown in FIG. 4E, a space filling i is inserted into a gap between the sheath pipe s and the discharge port d of the vertical pipe p for sewage. This prevents mortar from entering the outlet pipe r in the following step. As shown in FIG.
Mortar is filled in the gap between the wall of the manhole m and the vertical pipe p for sewage.

In such a conventional construction, the operation of adjusting the position between the discharge port d of the vertical sewage pipe p and the end of the outflow pipe r in the step is complicated. It is necessary to separately perform the operation of filling the gap between the pipe f and the outflow pipe g with the mortar and the operation of inserting the filling material i into the gap between the outflow pipe r and the discharge port c of the vertical pipe p for sewage in the process. Therefore, there is a problem that construction efficiency is poor.

[0007]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems, and facilitates the installation work for installing in a manhole so as to connect a discharge port and a sewer main pipe. It is intended to provide a vertical pipe that can be used.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a vertical pipe provided with a spiral guide path for bending and flowing down sewage in a pipe main body, wherein a discharge port is provided at a lower end of the pipe main body. Are provided so as to protrude outward, and a receiving port or an insertion port for connecting an end of an outflow pipe connecting the discharge port to a sewer main pipe protrudes outward around the discharge port. It is a vertical pipe provided.

In the present invention, the pipe body, the spiral guideway,
Examples of the material for forming the discharge port and the like include metals and resins. Examples of the resin include thermoplastic resin such as polyvinyl chloride, polyethylene, polypropylene, and acrylic resin, and examples of the thermosetting resin include unsaturated polyester resin, vinyl ester resin, and epoxy resin. And the like (FRP) reinforced with organic fibers such as inorganic fibers, carbon fibers, aramid fibers, and vinylon fibers, and those having a resin mortar as an intermediate layer (FRPM) can also be used as appropriate.

[0010]

The vertical pipe according to the present invention is provided at the lower end of the pipe body so that the discharge port protrudes outward, and is used for connecting the end of the outflow pipe connecting the discharge port to the sewer main pipe. Is provided so as to protrude outward around the outlet, so that the end of the outflow pipe is connected to the lower end of the outlet so that the outlet and the outlet The tubing can be connected to the end of the pipe without complicated position adjustment, and the mortar can be filled at one time around the outflow pipe and the gap between the wall of the manhole and the vertical pipe. Construction work for connecting the outlet and the sewer main can be easily performed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a main part of an example of a vertical pipe of the present invention. As shown in FIG. 1, the vertical pipe 1 of this example has a structure shown in FIG.
Spiral guideway as shown inside (not shown in FIG. 1)
And a discharge port saddle 12 having a receiving port for connecting the end of the outflow pipe.

The spiral guide path is 1/1 / the inner diameter of the pipe body 11.
It has a width of about 20 to 5/12, and projects spirally inside the tube body 11 so that the axial center is hollow. An inflow port (not shown) is provided at the upper end of the pipe main body 11 so as to protrude outward, and a through hole 111 is formed in a side wall of the lower end.

The discharge port saddle 12 has a short tubular discharge port 121 having an outer diameter substantially equal to the inner diameter of a through hole 111 formed at the lower end of the tube main body 11. Discharge port 121
An annular plate 123 having a curved surface along the outer surface of the tube wall of the tube main body portion 11 is provided at a position around the outer periphery of the base end portion of the tube main body portion 11 except for the thickness of the tube wall. A receiving port 122 for connecting an end of an outflow pipe R that connects the discharge port 121 to a sewer main pipe is provided around the discharge port 121 of the annular plate 123. In the receiving port 122, a protruding ridge 122a is provided along the circumferential direction on the inner peripheral surface of the inner portion of the inner wall, and the end surface of the outflow pipe R to be connected is provided. Packing 122b is mounted.

A discharge port saddle 12 is inserted into the lower end of the pipe main body 11, and a base end of the discharge port 121 is inserted into the through hole 111, and the back surface of the annular plate 123 extends along the outer wall around the through hole 111. And fixed via an adhesive. Thereby, the discharge port 12 is provided at the lower end of the pipe main body 11.
1 is provided so that its tip protrudes outward, and a receiving port 122 for connecting an end of the outflow pipe 2 connecting the discharge port 121 to the sewer main pipe protrudes outward around the discharge port 121. A vertical tube 1 is provided so as to be connected to the tube.

The construction process of the vertical pipe 1 shown in FIG.
This will be described with reference to (a) to (f). First, in the first construction process, as shown in FIG.
Drilling.

In the second construction step, as shown in FIG. 2 (b), excavation is performed from the manhole M to the sewer main pipe G, and both are connected by a sheath pipe S. In the third construction step, as shown in FIG.
Is piped such that its distal end communicates with the sewer main pipe G and its proximal end projects slightly into the manhole M.

In the fourth construction step, the vertical pipe 1 is installed in the manhole M as shown in FIG. In the fifth construction step, as shown in FIG. 2 (e), the base end of the outflow pipe R is inserted into a receiving port 122 provided at the lower end of the pipe main body 11, and connected via packing. At this time, the connection can be established only by inserting the base end of the outflow pipe R into the receptacle 122 at the lower end of the pipe main body 11. There is no need to perform complicated position adjustments between them.

In the final construction step, as shown in FIG. 2 (f), the mortar is formed in one step between the sheath pipe S, the outflow pipe R, the gap, the wall of the manhole M, and the pipe main body 11. Fill and fix. Through the above-described construction steps, a series of construction work in which the vertical pipe 1 is arranged in the manhole M so as to be connected to the sewer main pipe G is completed.

[0019]

As described above, the vertical pipe of the present invention can be easily installed in a manhole so as to connect the discharge port and the sewer main pipe.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of an example of a vertical pipe of the present invention.

FIGS. 2A to 2F are explanatory views for explaining a vertical pipe construction process shown in FIG. 1, and FIGS. 2A to 2F are cross-sectional views sequentially explaining a first construction process to a last construction process;

FIG. 3 is a sectional view showing an example of a conventional vertical pipe for sewage.

FIG. 4 is an explanatory view for explaining a construction process of a conventional vertical pipe for sewage, and (a) to (f) are cross-sectional views for sequentially explaining the construction order.

FIG. 5 is an enlarged sectional view of a main part of FIG. 4 (e).

[Explanation of symbols]

 M Manhole G Sewer main pipe S Sheath pipe R Outflow pipe 1 Vertical pipe 11 Vertical pipe main body 12 Discharge port saddle 111 Through hole 121 Discharge port 122 Reception port

Claims (1)

[Claims] 1. A vertical pipe provided with a spiral guide path for bending and flowing down sewage in a pipe main body, wherein a discharge port projects outward at a lower end of the pipe main body. And an outlet or insertion port for connecting an end of an outflow pipe connecting the discharge port to a sewer main pipe is provided so as to protrude outward around the discharge port. And vertical pipe.