JPH094036A - Joint structure between manhole and drain pipe - Google Patents

Abstract

PURPOSE: To make it possible to join a manhole with a drain pipe easily and definitely. CONSTITUTION: A manhole 10 is joined with drain pipes 13 by way of joining members 12 in structure where each joining member comprises an inner pipe 14 and an outer pipe 15. The inner pipe 14 and the outer pipe 15 of the joining member 12 are threaded with each other by means of a screw formed on pipe areas 14a and 14a. A side wall 10b of the manhole 10 is placed between a flange 14b of the inner pipe 14 and a flange 15b of the outer pipe 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a drainage pipe and a drainage pipe, which is suitable for application to a drainage pipe line buried in the ground, for example.

[0002]

2. Description of the Related Art Generally, in the ground of the outer periphery of buildings,
A drainage pipe is installed to guide rainwater and miscellaneous sewage generated from buildings to the public sewers. In such a drainage pipe, a drainage basin (a chamber basin) is provided for the purpose of removing solid matter contained in the drainage.

As shown in FIGS. 4 and 5, the drainage basin 1 is
For example, it is a rectangular tube shape made of concrete, and is provided on the bottom concrete 2 formed to a predetermined depth in the ground, and a sluice cover 3 is provided in the upper opening 1a. FIG.
As shown in FIG. 1, the side walls 1b and 1b of the drainage basin 1 are formed with openings 4 and 4, and in each opening 4, the end of the drain pipe 5 made of vinyl chloride, for example, is attached to the side wall 1b. It is inserted so that it is flush with the inner wall surface. A space between the drain pipe 5 and the opening 4 is filled with a filling material 7 such as cement mortar material. This filling material 7 not only closes the gap between the outer peripheral surface of the drain pipe 5 and the inner peripheral surface of the opening 4 in order to prevent water leakage, but also enhances the joint strength between the drain pipe 5 and the opening 4. The surface of the drainage basin 1 and the drainage pipe 5 are tapered so that the angle of the finished surface is approximately 45 degrees. In this way, the drainage basin 1 and the drainage pipes 5, 5, ... Are joined together.

[0004]

However, the above-described conventional joint structure between the drainage pipe and the drainage pipe has the following problems. First, in order to reliably prevent water leakage from the joint between the drainage basin 1 and the drainage pipe 5, the filler 7 must be carefully filled. Further, it takes time to cure the filling material 7, and during that time, it is necessary to support the drain pipe 5 so as not to move. Further, since the number and position of the drainage pipes 5 joined to the drainage basin 1 are different depending on the place, the opening 4 must be drilled at the site. At this time, in order to facilitate the filling operation of the filling material 7, the opening 4 must be accurately formed so that the gap between the opening 4 and the drain pipe 5 is as small as possible. It takes a lot of work. As described above, the work of joining the drainage basin 1 and the drainage pipe 5 is time-consuming, and there is room for improvement at present. The present invention has been made in consideration of the above points, and an object of the present invention is to provide a joint structure between a drainage pipe and a drainage pipe, which can easily and reliably perform the drainage pipe and the drainage pipe. .

[0005]

The invention according to claim 1 is
The drainage basin and drainage pipe are joined via a joining member,
The joining member has a flange portion that comes into contact with the inner surface of the side wall of the drainage basin, and an inner tube that extends outward from an opening formed in the side wall, and a flange portion that comes into contact with the outer surface of the side wall. And an outer pipe having an inner diameter substantially the same as the outer diameter of the pipe portion of the inner pipe and extending outward of the drainage basin, the outer peripheral surface of the inner pipe and the outer pipe The feature is that the inner peripheral surface is joined.

According to a second aspect of the present invention, in the joint structure of the drainage pipe and the drainage pipe according to the first aspect, threads are formed on the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe, respectively. The outer tube and the inner tube are joined by being screwed together.

According to a third aspect of the invention, in the joint structure of the drainage pipe and the drainage pipe according to the first aspect, the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe are joined by an adhesive material. It is characterized by that.

[0008]

According to the invention described in claim 1, the drainage basin and the drainage pipe are joined to each other via a joining member, and the joining member has a flange portion that abuts on the inner surface of the sidewall of the drainage basin and the opening of the side wall. And an outer pipe having a flange portion that abuts the outer surface of the side wall and joined to the inner pipe. Thus, when joining the drainage pipe and the drainage pipe, after passing the inner pipe through the opening from the inside of the drainage pipe, the outer pipe is passed through the inner pipe protruding outward from the opening from the outside of the drainage pipe. These may be joined together, and then the drain pipe to be joined may be joined to the tip portion of the joining member. Further, since the joint member has a form in which the side wall of the drainage pipe is sandwiched between the flange portion of the inner pipe and the flange portion of the outer pipe, the strength of the joint portion between the drainage pipe and the drainage pipe can be increased.

According to the second aspect of the invention, threads are formed on the inner peripheral surface of the outer tube and the outer peripheral surface of the inner tube, and the outer tube and the inner tube are screwed together. As a result, when attaching the outer pipe to the inner pipe inserted into the opening of the drainage basin,
All you have to do is screw it in.

According to the third aspect of the invention, the inner surface of the outer tube and the outer surface of the inner tube are bonded together. Also by this, the outer tube and the inner tube can be easily joined.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. Here, description will be given using an embodiment in which the outer tube and the inner tube of the joining member are screwed together. FIG.
3 to 5 show an example of the joint structure between the drainage basin and the drainage pipe according to the present invention. In these figures, the same parts as those of FIGS. 4 and 5 shown as the conventional example are designated by the same reference numerals.

As shown in FIG. 1, a drainage basin 10 made of concrete, for example, is provided on a bottom concrete 2 formed at a predetermined depth in the ground. The drainage basin 10 is in the shape of a rectangular tube having an axis in the up-down direction, and a basin lid 3 made of concrete is provided in the upper surface opening 10a. On the side walls 10b, 10b of the drainage basin 10 facing each other, for example, circular openings 11, 11 are formed to communicate the inside and outside thereof.

Then, a joining member 12 is provided in each opening 11.
A drain pipe 13 made of vinyl chloride, for example, is joined via the.

The joining member 12 is composed of an inner tube 14 and an outer tube 15. As shown in FIG. 2A, the inner pipe 14
Is a pipe portion 14a having an outer diameter smaller than that of the opening 11 (see FIG. 1) and having a thread formed on the outer peripheral surface thereof;
4a, and a flange portion 14b having a diameter larger than that of the opening portion 11 (see FIG. 1). On the other hand, as shown in FIG. 2 (b), the outer pipe 15 has an inner diameter substantially the same as the outer diameter of the inner pipe 14 a (see FIG. 2 (a)) and has a thread on its inner peripheral surface. Formed tube portion 15a,
The flange portion 14b (Fig. 2) is formed at one end of the pipe portion 15a.
(See (a)) and a flange portion 15b having substantially the same diameter.

As shown in FIG. 3, in the joining member 12 having such a structure, the flange portion 14b of the inner pipe 14 is connected to the drainage basin 10.
The inner surface of the side wall 10b of the pipe 14a
Is outwardly extended from the opening 11, the pipe portion 15a of the outer pipe 15 is screwed into the pipe portion 14a, and the flange portion 15b is in contact with the outer surface of the side wall 10b of the drainage basin 10. It is attached to the drainage basin 10.

As shown in FIG. 1, a drain pipe 13 is inserted at the tip end side of the pipe portion 15a of the outer pipe 15, and is joined by a joining means such as an adhesive.

In this way, the drainage basin 10 and the drainage pipe 1
3 and 13 are joined via the joining members 12 and 12.

Next, the drainage basin 10 having such a structure.
A method of joining the drainage pipes 13 and 13 to each other will be described. To this end, first, on the side walls 10b, 10b of the drainage basin 10 to which the drainage pipes 13, 13 are joined, an opening 11,
11 is formed.

Then, the drainage basin 10 is set on the bottom concrete 2 formed to a predetermined depth in the ground.

Next, the pipe portion 14a of the inner pipe 14 is passed through each opening 11 of the drainage basin 10, and the flange portion 14b is attached to the side wall 10.
Contact the inner surface of b. Subsequently, the pipe portion 14a of the inner pipe 14
And a gap between the opening 11 and the opening 11 is filled with a filler such as mortar, if necessary.

The pipe portion 14a of the inner pipe 14 protruding outward from each opening 11 is connected to the pipe portion 15a of the outer pipe 15.
Is screwed in, and the flange portion 15b is brought into contact with the outer surface of the side wall 10b of the drainage basin 10. In this state, the joining member 12
Is fixed to the opening 10 of the drainage basin 10, and the inner pipe 1
The side wall 10b of the drainage basin 10 is sandwiched between the flange portion 14b of No. 4 and the flange portion 15b of the outer pipe 15.

After this, by inserting the end of the drainage pipe 13 to be joined into the outer pipe 15 of the joining member 12, the work of joining the drainage basin 10 and the drainage pipes 13, 13 is completed.

In the joint structure of the drainage basin 10 and the drainage pipes 13 and 13 described above, the drainage basin 10 and the drainage pipes 13 and 13 are joined via the joining members 12 and 12, and each joining member 12 is joined.
Is composed of an inner tube 14 and an outer tube 15.
In this way, since the drainage basin 10 and the drainage pipes 13 and 13 can be joined without using a filler, the joining work can be facilitated and shortened, and as a result, the on-site labor can be saved. Personnelization and cost reduction can be realized.

The inner tube 14 and the outer tube 1 of the joining member 12 are
5 and 5 are configured to be screwed with each other by a thread formed on the tube portions 14a and 15a. Thereby, when the drainage basin 10 and the drainage pipes 13, 13 are joined, the inner pipe 1
After passing 4 through the opening 11, the outer pipe 15 may be screwed into the pipe portion 14a of the inner pipe 14 protruding outward. Therefore,
The drainage basin 10 and the drainage pipes 13 and 13 can be easily and reliably joined together without any skill.

In addition, the joint member 12 includes the drainage basin 1 including the flange portion 14b of the inner pipe 14 and the flange portion 15b of the outer pipe 15.
Since the side wall 10b of No. 0 is sandwiched, each drain pipe 13 and the drainage basin 10 can be completely joined to each other without any gap, and the strength of the joint can be increased. The service life can be extended.

In the above embodiment, a thread is formed on the pipe portion 14a of the inner pipe 14 and the pipe portion 15a of the outer pipe 15,
Although these are configured to be screwed together, as another embodiment,
The pipe portion 14a of the inner pipe 14 and the pipe portion 15a of the outer pipe 15 may be bonded with an adhesive. As a matter of course, in this case, no thread is formed on the tube portions 14a and 15b. Then, when the inner pipe 14 and the outer pipe 15 are joined, the inner pipe 14 is inserted into the opening 11, and then the adhesive is applied to the outer peripheral surface of the pipe portion 14 a extending from the opening 11. Then, after applying the adhesive to the inner peripheral surface of the pipe portion 15a of the outer pipe 15 to be attached, the outer pipe 15 is attached to the pipe portion 14a of the inner pipe 14.
The inner tube 14 and the outer tube 15 are joined by being inserted into Even with such a configuration, it is possible to achieve the same effect as that of the above embodiment.

[0027]

As described above, according to the joint structure of the drainage basin and the drainage pipe according to the first aspect, the drainage basin and the drainage pipe are joined via the joining member, and the joining member is the drainage basin. Has a flange portion that abuts the inner surface of the side wall, and has an inner tube that extends outward from the opening of the side wall, and a flange portion that abuts the outer surface of the side wall, and that is located outside the front drainage basin. The outer tube was extended. Thus, when the drainage basin and the drainage pipe are joined, the inner pipe is passed through the opening, then the outer pipe is joined to the inner pipe protruding outward from the opening, and then the tip of the joining member is joined. It suffices to join the drain pipe to be joined to the section. In this way, since the drainage basin and the drainage pipe can be reliably joined without using a filler, the joining work can be shortened and the work can be facilitated. Labor saving on site and cost reduction can be realized. Further, since the joint member has a configuration in which the side wall of the drainage basin is sandwiched between the flange portion of the inner pipe and the flange portion of the outer pipe, this allows the drainage pipe and the drainage basin to be joined together without a gap, and The strength can be increased and the service life can be lengthened.

According to the joint structure of the drainage pipe and the drainage pipe according to the second aspect, the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe are respectively formed with threads, and the outer pipe and the inner pipe are connected to each other. It is configured to be screwed. Thus, when attaching the outer pipe to the inner pipe inserted into the opening of the drainage basin, it is only necessary to screw the outer pipe, and the work of joining the drainage basin and the drainage pipe can be facilitated.

According to the joint structure of the drainage pipe and the drainage pipe of the third aspect, the inner peripheral surface of the outer pipe and the outer peripheral surface of the inner pipe are bonded together. Also by this, the outer pipe and the inner pipe can be easily joined, and the work of joining the drainage pipe and the drainage pipe can be facilitated.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a joint structure between a drainage basin and a drainage pipe according to the present invention, which is a vertical sectional view (a), a side sectional view (b), and a horizontal sectional view (c).

FIG. 2 is an elevation view showing an inner pipe and an outer pipe of a joining member used in the structure.

FIG. 3 is an elevational view showing a structure of a joining member used in the structure.

FIG. 4 is a perspective view showing an example of a conventional joint structure between a drainage pipe and a drainage pipe.

5 is a vertical sectional view (a) of the joint structure shown in FIG.
(B) A side view, (c) It is a plane sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Drainage basin 10a Side wall 11 Opening 12 Joining member 13 Drain pipe 14 Inner pipe 14b, 15b Flange 15 Outer pipe

Claims (3)

[Claims] 1. A drainage basin and a drainage pipe are joined together via a joining member, and the joining member has a flange portion that abuts an inner surface of a side wall of the drainage basin and is formed on the side wall. An inner pipe extending outward from the opening and a flange portion that abuts the outer surface of the side wall, and has an inner diameter substantially the same as the outer diameter dimension of the pipe portion of the inner pipe. A joint structure between a drainage basin and a drainage pipe, comprising an outer pipe extending in one direction, and an outer peripheral surface of the inner pipe and an inner peripheral surface of the outer pipe being joined together. 2. The joint structure between a drainage basin and a drainage pipe according to claim 1, wherein threads are respectively formed on an inner peripheral surface of the outer pipe and an outer peripheral surface of the inner pipe, and the outer pipe and the inner pipe are formed. A joint structure between a drainage pipe and a drainage pipe, wherein the pipe and the pipe are joined together by screwing. 3. The joint structure between a drainage basin and a drainage pipe according to claim 1, wherein an inner peripheral surface of the outer pipe and an outer peripheral surface of the inner pipe are joined together by an adhesive material. Joint structure between drainage basin and drainage pipe.