JP4231734B2 - Drainage structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage groove structure constructed to allow drainage of rainwater or the like along a road or a passage or around a park or a plaza.
[0002]
[Prior art]
In the conventional drainage groove structure, a receiving frame having an opening narrower than the opening width of the drainage groove main body is placed on the upper surface opening of the drainage groove main body (for example, U-shaped groove) embedded in the ground. A screen member for catching dust is disposed in the opening of the receiving frame, and a groove lid is detachably covered immediately above the screen member. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
JP 2002-97709 ([0009] to [0011], [FIG. 1])
[0004]
However, in the drainage groove structure described in Patent Document 1, since the screen member is held in the opening by the weight of the detachable groove lid, the groove lid is indispensable, and the groove lid must be removed. It was difficult to clean the captured garbage.
In addition, since the screen member holds dust, the gap between the groove lids is likely to be clogged, and the drainage performance is likely to deteriorate.
Furthermore, since the normal groove cover is a fixed object formed in advance corresponding to the width of the opening, it is extremely difficult to adjust the length in the field.
[0005]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a drainage groove structure that solves this problem, regardless of whether or not a groove lid is necessary, with the object of suppressing stagnation of dust, ensuring drainage, and improving ease of site adjustment.
[0006]
In order to solve the above problems, the present invention provides a drainage groove structure in which an opening width of a drainage part at an upper part of a drainage groove body is narrower than a groove opening width of the drainage groove body, and the drainage part is supported by the drainage groove body. The supporting part is a pre-made groove lid, and a drainage hole of a size that suppresses the passage of large garbage such as fallen leaves and waste paper at the upper end of the opening in the drainage part while having at least water permeability. Equipped with a drainage surface.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
It is desirable that the opening width of the present invention be within a range in which no obstacle occurs when a pedestrian or automobile passes.
In the present invention, since the drainage section horizontal surface covers the drainage groove having a wide opening such as a U-shaped groove, the entire groove is located close to the road surface, and the contact area between the road material and the groove upper portion is widened. Since the opening width is extremely narrow as described above, the heat in the drainage groove is difficult to escape and the heating and heat retaining properties in the water groove are improved.
In other words, warm air kept warm in the drainage hole rises to push up dust with a small specific gravity like dust, and this dust is discharged from the opening, and due to the rising momentum, Prevent intrusion.
Moreover, since the periphery of the opening is warmed by the warm air in the drainage groove flowing in from the sewer pipe, snow melting on the periphery of the opening is effectively performed.
Furthermore, large garbage is crushed on the road surface by being stepped on by automobile tires or pedestrians, and only the dust that has been crushed finer than the width of the opening and reduced in weight falls into the drainage groove. It floats with the drainage while floating on the upper layer of the drainage.
In this case, dust can be effectively pulverized by projecting the opening of the drainage portion to the extent that there is no hindrance to walking.
[0008]
The present invention also proposes a structure having a drainage surface in the opening.
For example, in the drainage groove structure in which the opening width of the drainage section 2 at the top of the drainage groove body 1 is narrower than the groove opening width of the drainage groove body 1, at least the upper end of the opening 21 in the drainage section 2 has water permeability. On the other hand, the structure which equips the drainage surface 3 provided with the drainage hole 32 of the magnitude | size which is a magnitude | size which suppresses passage of big garbage, such as a fallen leaf and paper waste, can be illustrated .
In this case, since the drainage surface and the road surface are the same surface, unevenness on the road surface can be eliminated.
[0009]
In addition, in the drainage groove structure in which the opening width of the drainage portion 2 at the upper portion of the drainage groove body 1 is narrower than the groove opening width of the drainage groove body 1, the drainage portion 2 may not pass through the entire area or part of the opening portion 21. Equipped with a drainage surface 3 having a drainage hole 32 of a size that suppresses the passage of large garbage such as fallen leaves and waste paper while being water-based, immovably mounted below the upper end of the opening 21, A structure that secures the groove-like space 22 above the drainage surface 3 can be exemplified .
In this case, when the drainage flows into the drainage surface below the road surface, a drainage pressure is generated in the drainage, and the drainage pressure efficiently flows the drainage into the drainage hole.
[0010]
The drainage surface referred to in the present invention can be, for example, a thin and porous material such as punching metal or a wire mesh, or a solid mesh material, and can be made of a grating or a concrete made conventionally as a groove cover. Even a regular product having a certain height (thickness) such as the above can be used as long as the drainage hole has water permeability and a size enough to suppress passage of large waste such as fallen leaves and waste paper.
For example, if a thin drainage surface is used, the material that makes up the drainage surface can be easily cut at the time of on-site adjustment, and if a standard object is used for the drainage surface, the rigidity due to its thickness is demonstrated. Is done.
In addition, by immovably mounting the drainage part, even if it is thin or has low rigidity such as a water permeable material or a water permeable sheet, rattling is prevented even when a load from above acts. Separation from the opening due to rattling is prevented.
The immovable state in the present invention is to prevent movement by fixing by bolts / nuts or welding, or to prevent movement by frictional resistance due to the weight of the drainage surface or clamping.
[0011]
And since the drainage hole in a drainage surface is fine and the opening rate of a drainage surface is low, it becomes a structure where the heat in a drainage groove does not escape easily, and the heating and heat retention in a drainage channel improve.
In other words, warm air kept warm in the drainage hole rises to push up dust with a small specific gravity like dust, and this dust is discharged from the drainage hole. Prevent intrusion.
Further, since warm air in the drainage groove warms the drainage surface, snow melting on the drainage surface is effectively performed.
In addition, large garbage is stepped on and crushed by the tires and pedestrians of automobiles on the drainage surface and road surface, and only the dust that has been crushed finer than the drainage holes and reduced in weight falls into the drainage channel. Will flow along with the drainage, floating above the drainage in the drainage channel.
[0012]
As a means for suppressing entry of dust such as sand having a large specific gravity, a configuration in which a wall 33 surrounding the drain hole 32 is provided around the drain hole 32 can be exemplified .
In this case, both of a structure in which a wall body is erected on either the front or back side of the drainage surface and a structure in which a wall body is erected on both sides of the drainage surface are included.
In the structure in which the wall body is erected on the front side of the drainage surface, it is possible to suppress the entry of fine dust having a large specific gravity into the drainage groove by blocking fine dust having a large specific gravity that the wall body moves.
In the structure where the wall body is erected on the back side of the drainage surface, a part of the warm air in the rising drainage groove is discharged from the drainage hole to the outside of the drainage groove, but the remaining air is drained from the tip of the wall body The warm air reaching the surface is suppressed from being discharged from the drainage holes by the wall and is warmed across the entire drainage surface, so that the snow melting effect on the drainage surface becomes higher.
In the structure in which wall bodies are erected on both the front and back sides of the drainage surface, it has the effect of suppressing the entry of fine dust having a large specific gravity into the drainage hole and the effect of melting snow.
Furthermore, the wall in the present invention can be expected to have a function as a rib for maintaining the strength of the drainage surface.
[0013]
As a means for preventing dust from depositing and adhering to the drainage surface in fine weather, it can be exemplified that the drainage surface 3 between the opposing opening side walls is provided with an inclined surface 35 for guiding drainage to the drainage hole 32 .
With this configuration, clogging is prevented and effective drainage can be performed.
More effectively, the inclined surface 35 is inclined along the longitudinal direction of the drainage surface 3.
[0014]
The structure of the support part that supports the drainage part to the drainage groove body can be directly fixed to the drainage groove as usual or fixed via a connecting member. For example, the support portion 4 that supports the groove body 1 may be an existing groove lid .
The existing groove lid is, for example, a grating, a cast lid, a concrete lid, and the like. By properly using these lids according to the location of the drainage groove, the drainage groove is highly reliable.
[0015]
There are many examples in which a metal material or a concrete material is used as a material constituting the drainage ditch, but in the case of these materials, there is a high possibility that the material will be affected by the recent acid rain.
For example, in the case of interlocking pavement, since the cushion sand is laid, rainwater is retained in the cushion sand and becomes wet for a long time, and in particular, the drainage part that contacts the cushion sand part is adversely affected.
Therefore, it is possible to protect at least by a Turkey to form a waterproof layer 6 on the outer surface of the drain section 2, the water discharge section from water retention rainwater cushion sand.
In addition to the outer side surface of the drainage part, the present invention also includes forming a waterproof layer on a part that seems to be necessary.
[0016]
In addition, it is preferable to form the water permeable portion 7 at least outside the waterproof layer 6 formed in the drainage portion 2 and to provide the drainage portion 2 with a through hole 24 that penetrates the drainage portion 2 and the waterproof layer 6. .
That is, the rainwater retained in the cushion sand is forcibly drained from the water permeable portion through the through hole by a pump action that is generated when the load is applied to the block when the vehicle or pedestrian passes.
Therefore, rainwater retained by the cushion sand can be efficiently discharged and the wet state can be completed in a short time, so that the adverse effects of rainwater can be more effectively suppressed.
[0017]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 3 show a first embodiment of a drainage groove structure according to the present invention, and FIGS. 4 and 5 show a second embodiment according to the present invention. 6 and 7 show a third embodiment according to the present invention, FIG. 8 shows a fourth embodiment according to the present invention, and FIG. 9 shows a fifth embodiment according to the present invention.
In addition, the same code | symbol is attached | subjected to the same structural member through all the drawings, and duplication description is abbreviate | omitted.
[0018]
The drainage groove structure of the first embodiment is fixed to the drainage groove body 1 using a U-shaped groove, the drainage part 2 having an opening 21 narrower than the opening width of the drainage groove body 1, and the upper end of the opening 21. The drainage surface 3 and a support portion 4 for supporting the drainage portion 2 to the drainage groove body 1 are embedded so that the upper end surface of the drainage surface 3 is flush with the road surface G. The drainage groove A is configured.
The drainage part 2, the support part 4, and the drainage surface 3 are integrally connected and fixed.
In addition, about the detail of the said drain groove main body 1, the drainage part 2, and the support part 3, since it is well-known things, such as a raw material, a shape, and a fixed structure, description is abbreviate | omitted.
[0019]
The drainage surface 3 is formed by punching metal having a small opening area with a substantially U-shaped cross section, and is fitted and fixed so as to cover the upper end of the opening 21 of the drainage part 2.
Specifically, the inner side width of the lower open portion of the substantially U-shaped cross section in the drainage surface 3 is formed as a width that fits and fits to the outer side width of the opening portion 21. The surface 3 is fitted to the upper end of the opening portion 21 and is fixed to the drainage portion 2 by bolts and nuts 31 from the side surface.
The punching hole in the drainage surface 3 is a drainage hole 32.
The drainage hole 32 is capable of passing water, but has a small diameter so that relatively large garbage such as fallen leaves, waste paper, cigarette butts etc. cannot pass through. Rainwater drains into the drainage groove A, but large garbage is drainage. It cannot be put in A.
[0020]
The drainage groove structure of the second embodiment is constructed by fitting the drainage surface 3 into the opening 21 in the drainage portion 2 so as to be at a position lower than the road surface G, and fixing with the bolts and nuts 31. is there.
The space of the opening 21 immediately above the drainage surface 3 formed in this way is defined as a groove-like space 22, and the drainage of rainwater flowing into the groove-like space 2 is used to allow efficient drainage.
In the present embodiment, the groove-like space 22 is formed over the entire length of the drainage groove A, so that dust staying in the groove-like space 22 is easily taken out.
The depth of the groove-like space 22 is arbitrary, but it is set to a depth at which an effective drop pressure can be secured and the accumulated dust can be easily swept out.
On both the front and back sides of the drainage surface 3, cylindrical wall bodies 33 communicating with the drainage holes 32 are erected for each drainage hole 32, and the fine dust drainage passing over the drainage surface 3 by the wall bodies 33. Intrusion suppression into the hole 32 and discharge suppression of warmed air in the drain groove A are performed.
[0021]
The drainage groove structure of the third embodiment is configured such that the drainage surface 3 is a concrete molded product and is fitted into the opening 21 so as to be lower than the road surface G, as in the second embodiment. .
The drainage surface 3 of the present embodiment is a width that fits and fits into the opening 21, and when fitted into the opening 21, the drainage surface 3 depends on the fitting frictional force and the weight of the drainage surface 3. The immobile state is maintained.
Further, the drainage hole 32 of the present embodiment is constituted by three through holes in the drawing and a notch 34 for a handle formed at both end edges of the drainage surface 3.
When the drainage surfaces 3 are arranged in series, the handle notch 34 is configured so that adjacent handle notches face each other to form a drainage hole 32 equivalent to the through hole.
Further, the drain surface 3 of the present embodiment is formed with an inclined surface 35 that inclines downward toward the drain holes 32 along the longitudinal direction of the drain surface.
The inclined surface 35 has an intermediate portion between adjacent drain holes 32 as a vertex and is inclined downward from the vertex toward both drain holes 32, and the inclined surface 35 falls into the groove-shaped space 22. Rainwater is guided to the drain hole 32 in a concentrated manner.
In this embodiment, since the drop pressure in the groove-like space 22 is also applied during drainage, it is effective to concentrate rainwater on the drainage holes 32.
[0022]
In the drainage groove structure of the fourth embodiment, the support part 4 that supports the drainage part 2 to the drainage groove body 1 is a grating that is normally used as a groove lid.
In the present embodiment, the support portion 4 will be described as the grating 4.
A specific structure is such that a fixing tool 5 having a fixing bolt 51 standing on the upper end edge of the drainage groove body 1 is fitted and fixed, and the fixing bolt 51 is passed through the water passage space 41 of the grating 4. The fixing nut 42 is screwed into the fixing bolt 41 protruding from the supporting surface 23 of the drainage part 2 placed on the supporting surface 23.
In the drainage groove structure of this structure, the drainage part 2 is supported by the grating 4 after preventing the invasion of large dust, and thus the drainage groove A having high strength and reliability is obtained.
Moreover, since the support pitch becomes fine by using the grating, even if the longitudinal direction of the groove of the grating is cut, the load resistance is not reduced.
Furthermore, since the support pitch is fine, it is not necessary to consider the strength maintenance of the support surface 23 on the drainage surface 2.
[0023]
The drainage groove structure of the fifth embodiment is disposed on an interlocking road surface. In the figure, reference numeral G1 is a tile, and reference numeral G2 is cushion sand.
The drainage groove structure of the present embodiment includes a waterproof layer 6 on the entire outer surface of the drainage part 2, a water permeable part 7 on the surface of the waterproof layer 6, and the support surface 23 and the waterproof layer 6 on the support surface 23. A through-hole 24 that penetrates is provided.
The waterproof layer 6 protects the adverse effect on the drainage part 2 of the rainwater retained in the cushion sand G2, and the water permeable part 7 allows the rainwater retained in the cushion sand G2 to pass through when the vehicle or pedestrian passes. Water is permeated by a pump action generated when a load is applied to the block G 1, and the water is forcibly drained through the through hole 24.
The pump action also acts to forcibly drain rainwater retained in the cushion sand G2 from the gaps between the tiles G1.
In the drainage groove structure of the present embodiment, the drainage surface 3 is fitted and fixed in the opening 21 so as to be flush with the road surface G.
[0024]
Each of the above embodiments exemplifies a structure in which a drainage surface is mounted in the opening, but the present invention includes a structure in which the drainage surface is not mounted.
In other words, while ensuring the heating and heat retaining properties of the drainage groove, the opening width is set to a level that suppresses the passage of large garbage such as fallen leaves and waste paper while having water permeability. An effect equivalent to a typical effect can be obtained, and the cost for mounting the drainage surface can be reduced. (Not shown)
A preferred width for the opening width in this embodiment is about 10 mm.
Further, an opening width of 1/20 or less of the groove opening is optimal for ensuring heatability, and an opening width of 0.4% or less of the groove cross-sectional area is optimal for ensuring heat retention.
However, the above numerical values are appropriately selected according to the surrounding environment such as the vertical distance between the road surface and the groove, the distance from the sewage main pipe, the thermal conductivity, gradient, and amount of solar radiation of the road material.
[0025]
In addition, this invention is not limited to the structure in the illustrated Example, In the range as described in each item of a claim, it is arbitrary to set it as another structure.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a drain groove structure of a first embodiment.
FIG. 2 is a plan view of the same.
3 is a cross-sectional view taken along line (3)-(3) of FIG.
FIG. 4 is a cross-sectional view showing a drainage groove structure of a second embodiment.
FIG. 5 is an enlarged view of a main part of FIG. 4;
FIG. 6 is a cross-sectional view showing a drainage groove structure of a third embodiment.
FIG. 7 is a plan view of the same.
FIG. 8 is a cross-sectional view showing a drain groove structure of a fourth embodiment.
FIG. 9 is a cross-sectional view showing a drainage groove structure of a fifth embodiment.
[Explanation of symbols]
A: Drainage groove 1: Drainage groove body 2: Drainage part 21: Opening part 22: Groove space 3: Drainage surface 32: Drainage hole 33: Wall body 35: Inclined surface 4: Bearing part 6: Waterproof layer 7: Water-permeable layer

Claims (6)

In the drainage groove structure where the opening width of the drainage part at the top of the drainage groove body is narrower than the groove opening width of the drainage groove body,
The support part for supporting the drainage part on the drainage groove main body is an existing groove lid,
At the upper end of the opening in the drainage part, it is equipped with a drainage surface having drainage holes of a size that prevents passage of large waste such as fallen leaves and waste paper while having water permeability at least. Characteristic drainage groove structure. The drainage groove structure according to claim 1, wherein the drainage surface is fixedly provided below the upper end of the opening to secure a groove-like space above the drainage surface . The drainage groove structure according to claim 1 or 2, wherein a wall body surrounding the drainage hole is erected around the drainage hole . The drainage groove structure according to claim 1 or 2, wherein the drainage surface is provided with an inclined surface for guiding drainage to the drainage hole . The drainage groove structure according to any one of claims 1 to 4, wherein a waterproof layer is formed at least on an outer surface of the drainage part . 6. The water permeable portion is formed at least outside a waterproof layer formed in the drainage portion, and a through hole penetrating the drainage portion and the waterproof layer is provided in the drainage portion. Drainage structure as described .

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