JPH07150618A - Drainage basin - Google Patents

Abstract

PURPOSE:To promote execution efficiency by erecting cylinders on the bottom having an invert section forming channels to provide. CONSTITUTION:Water inlet pipe joint sections 4 and 5 and a discharging pipe joint section are provided to the bottom section 1. A recessed groove 12 forming one channel and a recessed groove 13 forming the other channel are provided to the bottom section 1 to form an invert section 11. The recessed groove 12 is connected to the water inlet pipe joint section 4 and discharging pipe joint section, at the same time, the recessed groove 13 is connected to the water inlet pipe joint section 5, and it is met with the recessed groove 12 on the midway. In addition, cylinders 2 having an internal aperture D1 keeping the approximately same size over the axial overall-height, having the maximum allowable depth Hmax corresponding to the internal aperture D1 and meeting the relation, H>=Hmax of the axial height are continuously erected on the bottom 1 and are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage basin used for a sewage basin or the like, and more particularly to a technique capable of easily adjusting the burial depth of the drainage basin and improving workability.

[0002]

2. Description of the Related Art This type of drainage basin must be buried according to the underground burial depth of the sewage pipe. In the conventional drainage basin, the diameter of the opening part for receiving the lid and the inner diameter of the drainage basin are different, so the opening part cannot be cut and adjusted, and a cylindrical member having an appropriate axial length in the middle part. The burial depth is adjusted by connecting the.

[0003]

However, the conventional drainage basin has the following problems. (A) Since the burying depth is adjusted by connecting the cylindrical members having an appropriate axial length, the number of assembling steps is increased, and the positioning and bonding work is required, which lengthens the installation work and It causes troublesome installation work. (B) Since the invert portion is integrally formed on the bottom portion, when the stile is made of concrete or the like, the weight becomes extremely heavy, which makes installation work difficult.

[0004] Therefore, an object of the present invention is to provide a drainage basin capable of coping with various underground burial depths and improving workability.

Another object of the present invention is to provide a drainage basin which is light in weight and can be improved in workability.

[0006]

In order to solve the above-mentioned problems, a drainage basin according to the present invention includes a bottom portion and a tubular portion, and the bottom portion has an invert portion that constitutes a flow path. The cylindrical portion is provided continuously upright on the bottom portion, has an inner diameter D1 that maintains substantially the same dimension over the entire axial height, and has a maximum allowable depth Hmax corresponding to the inner diameter D1.
And the height H in the axial direction satisfies H ≧ Hmax.

Also, a lid member is included, and the lid member is attached to the open end of the tubular portion, and has a protrusion and a flange, and the protrusion is formed on one surface side of the lid. It projects with an outer diameter corresponding to the inner diameter of the tubular portion, and the collar portion has a step corresponding to the protrusion between the protruding portion and the flange portion so as to be continuous with the outer periphery of the protruding portion and protrude outward. There is.

The outer diameter of the protruding portion, the height of the protruding portion, and the protruding length of the flange portion of the lid member are set so as not to drop even when the opening end surface is inclined within 15 degrees. .

In order to solve another problem, the invert portion is formed by separately providing an invert member on the bottom portion.

The invert member includes a base member and a covering member. The base member is made of urethane foam or styrofoam and has a main surface, a side surface and a bottom surface, and the main surface is the flow surface. The groove has a groove serving as a path, the side surface is continuous with the main surface and extends to the bottom surface side, and the covering member is made of a water-impermeable synthetic resin different from urethane foam or styrene foam. The surface and the side surface are coated along the surface thereof.

[0011]

Since the bottom portion has the invert portion which constitutes the flow passage, the drainage basin having the drainage passage corresponding to the flow passage constitution of the invert portion can be obtained.

Since the tubular portion is continuously provided upright on the bottom portion and has an inner diameter D1 which maintains substantially the same dimension over the entire height in the axial direction, the tubular portion is the same regardless of which portion is cut. It has a cross section and can be covered with a lid member. This makes it possible to adjust the height by cutting the opening end side.

The tubular portion has a maximum allowable depth Hmax corresponding to the inner diameter D1 and the axial height H satisfies H ≧ Hmax. By cutting at the portion corresponding to the position of, the opening end position of the tubular portion can be adjusted to the embedding depth. That is, the height of the drainage basin can be adjusted according to the underground burial depth of the sewage pipe by cutting once, without providing a tubular member for adjustment in the middle part.

Therefore, it is possible to obtain a drainage basin which can easily cope with various burial depths and improve workability.

The lid member is attached to the open end of the tubular portion, and the projecting portion projects on one side with an outer diameter corresponding to the inner diameter D1 of the tubular portion, and the brim portion projects between the projecting portion. Since it has a corresponding step and is continuous with the outer periphery of the protrusion and protrudes outward, it is possible to close the open end of the tubular portion.

Further, the lid member has a lid receiving portion and a through hole, and the lid receiving portion has a concave portion corresponding to the size of the lid body on the other surface side facing the one surface side, and the through hole. Since the hole penetrates from the lid receiving portion to the protrusion, even if the diameter of the lid and the diameter of the tubular portion are different, the open end of the tubular portion can be closed with the lid. Since the diameter of the lid can be small, the mechanical strength of the lid can be reduced.

Since the outer diameter of the protrusion, the height of the protrusion, and the protrusion length of the flange are set so that the lid member does not drop even when the opening end face is inclined within 15 degrees, the opening is opened. The lid can be covered even if the precision of the end cutting process becomes rough.

Since the invert portion is formed by separately providing the invert member on the bottom portion, the sill body can be formed into a cylindrical shape with a bottom, and the sill body and the inverting member can be handled separately. This reduces the weight burden during manufacturing and construction and improves workability.

The base member of the invert member is preferably made of urethane foam or styrofoam, and the covering member for covering the base member is made of impermeable synthetic resin different from urethane foam or styrofoam. In this case, the weight can be reduced to 1/10 to 1/50 as compared with the case of using concrete, and the workability is remarkably improved.

[0020]

1 is a plan sectional view of a drainage basin according to the present invention, and FIG. 2 is a front sectional view taken along the line A2-A2. The drainage basin has a bottom portion 1 and a tubular portion 2. The drainage basin is made of concrete, vinyl chloride resin, or the like.

The bottom portion 1 has an invert portion 11 forming the flow paths a and b. The bottom portion 1 has a bottomed tubular shape, and the invert portion 11 is formed integrally with the bottom portion 1. The bottom portion 1 includes the inflow pipe connecting portions 4 and 5 and the discharge pipe connecting portion 6.
And have. The invert part 11 has a concave groove 12 that forms the flow path a and a concave groove 13 that forms the flow path b. The groove 12 communicates with the inflow pipe connecting portion 4 and the discharge pipe connecting portion 7. The groove 13 communicates with the inflow pipe connecting portion 5,
It joins the groove 12 on the way.

The tubular portion 2 is continuously provided upright on the bottom portion 1, has an inner diameter D1 which maintains substantially the same dimension over the entire height in the axial direction, and has a maximum allowable depth Hma corresponding to the inner diameter D1.
It has x and the axial height H satisfies H ≧ Hmax. The maximum allowable depth Hmax is the mechanical strength,
Determined by laws and regulations. For example, when the inner diameter D1 of the drainage basin (cylindrical portion 2) is 30 cm, the maximum allowable depth Hmax is 30 cm or more and less than 60 cm, and the inner diameter D1 is 40 cm.
In case of cm, the maximum allowable depth Hmax is 60 cm or more,
If the inner diameter D1 is less than 90 cm and the inner diameter D1 is 50 cm, the maximum allowable depth Hmax is 90 cm or more and less than 120 cm, which is restricted by law. Therefore, if the inner diameter D1 is 30 cm, the height H is set to 60 cm or more.

As described above, since the bottom portion 1 has the invert portion 11 which constitutes the flow passages a and b, the drainage basin having the drainage passage corresponding to the constitution of the flow passages a and b of the invert portion 11 is provided. can get.

Since the tubular portion 2 is continuously provided upright on the bottom portion 1 and has an inner diameter D1 which maintains substantially the same dimension over the entire axial height, the tubular portion 2 can be cut at any portion. Also has the same cross section and can be covered with a lid member (not shown). As a result, the height of the drainage basin can be adjusted by cutting the opening end side.

FIG. 3 is a front sectional view showing a state in which the drainage basin is installed underground. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same components. Reference numeral 8
Is a sewage pipe, and 9 is a hole dug in the ground. The figure shows a state in which a drainage basin is installed in the hole 9 and the wastewater pipe 8 is connected to the drainage basin.

The tubular portion 2 has a maximum allowable depth Hmax corresponding to the inner diameter D1 and the axial height H satisfies H ≧ Hmax. By cutting at the portion G corresponding to the position on the surface, the open end of the tubular portion 2 can be adjusted to the embedding depth Hd. That is, unlike the prior art, the height of the drainage basin can be adjusted according to the underground burial depth of the dirty water pipe by cutting once, without providing a tubular member for adjustment in the middle portion. In actuality, the thickness Hf of the lid (not shown) is taken into consideration, and the lid is cut by the thickness Hf.

Therefore, it is possible to obtain a drainage basin which can easily cope with various burial depths Hd and improve workability.

FIG. 4 is a front sectional view showing a state in which a lid is installed on the drainage basin. The same reference numerals as those in FIGS. 1 and 2 denote the same components. Reference numeral 31 is a lid member, 3
2 is a lid. The lid member 31 and the lid body 32 are usually made of concrete, cast iron, or the like.

The lid member 31 is attached to the open end of the tubular portion 2 and has a protrusion 311 and a flange 312. The protruding portion 311 projects on the one surface side with an outer diameter corresponding to the inner diameter D1 of the tubular portion 2. Mitsuba 312
Has a step corresponding to the protrusion between the protrusion 311 and
It is connected to the outer periphery of the protrusion 311 and protrudes outward. Thereby, the opening end of the tubular portion 2 can be closed by the lid member 31.

Further, the lid member 31 has a lid receiving portion 313 and a through hole 314. The lid receiving portion 313 has a concave portion corresponding to the size of the lid body 32 on the other surface side facing the one surface side. The through hole 314 extends from the lid receiving portion 313 to the protruding portion 311. Thereby, the lid 32
Even if the diameter of the cylinder 2 and the diameter of the cylinder 2 are different, the open end of the cylinder 2 can be closed with the lid 32. Since the diameter of the lid 32 can be small, the mechanical strength of the lid 32 can be reduced.

FIG. 5 is a plan sectional view showing a state in which a lid is installed on the drainage basin. The figure shows a case where the open end of the tubular portion 2 is cut with an inclination. In the figure, the same reference numerals as those in FIG. 4 denote the same components.

The lid member 31 has an outer diameter D2 of the protrusion 311 and
The height d of the protrusion 311 and the protrusion length L of the collar 312 (see FIG. 4) are set so as not to drop even when the opening end face is inclined within 15 degrees. As a result, the lid 32 can be provided even if the cutting accuracy of the opening end becomes rough.

FIG. 6 is a front sectional view of another embodiment of the drainage basin according to the present invention. In the figure, the same reference numerals as those in FIGS. 1 and 2 denote the same components. In this embodiment, the invert member 11 is separately formed on the bottom portion 1. The bottom part 1 has a bottomed tubular shape. Invert section 11
Is provided on the bottom 1.

Since the bottom part 1 and the invert part 11 are provided separately, the bottom part 1 and the invert part 11 can be handled separately. This reduces the weight burden during manufacturing and construction and improves workability.

The invert member 11 includes a base 111 and a covering member 112. The substrate 111 is made of urethane foam or styrene foam, and has a main surface S1 and
It has a side surface S2 and a bottom surface S3. The main surface S1 has the concave grooves 12 and 13 which become the flow paths a and b. Side S2
Extends to the bottom surface S3 side in succession to the main surface S1. The covering member 112 is made of a water-impermeable synthetic resin different from urethane foam or styrene foam, and covers the main surface S1 and the side surface S2 along the surface thereof. Cover member 1
12 is preferably a thermosetting resin such as vinyl chloride resin (PVC), ABS resin, polyethylene resin (PE), polyethylene terephthalate resin (PET).

Since the base 111 of the invert member 11 is made of urethane foam or styrene foam, the weight can be reduced to 1/10 to 1/50 of that when it is made of concrete, and the workability is remarkably improved. Further, it is possible to easily cope with the change of the flow path.

The covering member 112 is made of vinyl chloride resin (PV
C), ABS resin, polyethylene resin (PE), polyethylene terephthalate resin (PET), or other thermosetting resin, the thermosetting resin is heated and vacuum-sucked on the substrate 111 to form the substrate 111. The cover member 112 can be formed in close contact with the.

In the embodiment, the main surface S1 has the uneven portion 113. The concavo-convex portion 113 can be formed on the base 111 by a groove process using a cutter or the like, a pressing process using a thermal die, or the like. In addition, a concavo-convex sheet may be placed on the base 111 to be formed. With this configuration, the worker can be prevented from falling during installation work or cleaning work.

The side surface S2 has an uneven portion 114.
The concavo-convex portion 114 can be formed on the base 112 by a groove processing using a cutter or the like, a pressing processing using a thermal die, or the like. According to this configuration, when the invert portion 11 is fixed to the bottom portion 1 by using the filling member 115 such as the emulsion rubber-containing mortar and the synthetic resin adhesive such as epoxy, the peel strength in the vertical direction is increased, and the invert portion is increased. 11 can be reliably prevented from rising.

[0040]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a drainage basin capable of adapting to various underground burial depths and improving workability. (B) It is possible to provide a drainage basin that is light in weight and can be improved in workability.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a drainage basin according to the present invention.

FIG. 2 is a front sectional view taken along the line A2-A2 in FIG.

FIG. 3 is a front cross-sectional view showing a state in which a drainage basin is installed underground.

FIG. 4 is a front cross-sectional view showing a state in which a lid is installed on the drainage basin.

FIG. 5 is a plan sectional view showing a state in which a lid is installed on the drainage basin, showing a case where the cut surface of the tubular portion is inclined.

FIG. 6 is a front sectional view of another embodiment of the drainage basin according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom part 11 Invert part 12, 13 Recessed groove 2 Cylinder part 31 Lid member 31 1 Projection part 312 Collar part 313 Lid receiving part 314 Through hole 32 Lid body 4, 5 Inflow pipe connection part 6 Outflow pipe connection part 8 Sewage pipe H cylinder part Height Hd Underground depth D1 Inner diameter of cylinder D2 Outer diameter of protrusion d Height of protrusion L Length of protrusion of collar

Claims (7)

[Claims] 1. A drainage basin including a bottom portion and a tubular portion, wherein the bottom portion has an invert portion that constitutes a flow path, and the tubular portion is continuously upright on the bottom portion. Is provided by
Inner diameter D1 that keeps almost the same size over the entire axial height
A drainage basin having a maximum allowable depth Hmax corresponding to the inner diameter D1 and an axial height H satisfying H ≧ Hmax. 2. A lid member, which is attached to an open end of the tubular portion, has a protrusion and a flange, and the protrusion is provided on one surface side with the protrusion. It projects with an outer diameter corresponding to the inner diameter D1 of the tubular portion, and the flange portion has a step corresponding to the protrusion between the protrusion portion and the flange portion, and the flange portion projects to the outside in connection with the outer periphery of the protrusion portion. The drainage basin according to claim 1. 3. The lid member has a lid receiving portion and a through hole, and the lid receiving portion has a recess corresponding to the size of the lid body on the other surface side facing the one surface side. The drainage basin according to claim 2, wherein the drain hole extends from the lid receiving portion to the projection portion. 4. The lid member is set such that the outer diameter of the protrusion, the height of the protrusion, and the protrusion length of the collar do not fall even when the opening end surface is inclined within 15 degrees. The drainage basin according to claim 2 or 3. 5. The drainage basin according to claim 1, 2, 3 or 4, wherein the invert portion is integrally formed with the bottom portion. 6. The drainage basin according to claim 1, wherein the invert portion is formed by separately providing an invert member on the bottom portion. 7. The invert member includes a base member and a covering member, and the base member is made of urethane foam or styrene foam, has a main surface, a side surface, and a bottom surface, and the main surface is Having a concave groove to be the flow path, the side surface is continuous with the main surface and extends to the bottom surface side, the coating member is made of a water-impermeable synthetic resin different from foamed urethane or styrene foam, The drainage basin according to claim 6, wherein the main surface and the side surface are coated along the surface thereof.