JP2019210683A - Cover structure and catch basin - Google Patents

Abstract

To provide a cover structure capable of collecting rain and snowmelt water efficiently while minimizing the processing on a catch basin body and having good workability, and a catch basin having the cover structure.SOLUTION: A cover structure is provided with a cover frame installed on the upper end face of a catch basin body, and a cover body housed in the cover frame and covering an upper end opening of the catch basin body. The cover frame has, at the inner peripheral side thereof, a cylindrical rising portion provided with a cover height adjusting member on which the cover body is placed, and a projection portion extending from the rising portion and facing the upper end face of the catch basin body. The projection portion is provided with a cover frame support member capable of supporting the cover frame with a gap between the cover frame and the upper end face of the catch basin body.SELECTED DRAWING: Figure 2

Description

  TECHNICAL FIELD The present invention relates to a water catchment lid structure installed on a road or a sidewalk, and a water catchment provided with a lid structure.

  Conventionally, in the pavement areas where pavement layers such as roads and sidewalks are laid, there is installed a water collecting basin that collects water such as rainwater and snowmelt water that flows down or flows into the pavement surface. ing. The catchment basin is generally made of a concrete tubular body whose upper end opening is covered with a lid, and the height is adjusted so that the upper end surface of the tubular body is approximately the same as the pavement surface around the catchment basin. In this state, it is installed in or adjacent to the pavement area.

  For this reason, moisture such as rainwater and snowmelt water that has flowed down on the pavement surface flows into the drainage basin through the lid that covers the upper end opening of the basin, but drains into the pavement layer. Even if it flows down to the vicinity of the catchment basin, it will be blocked by the peripheral wall of the catchment basin, and will not flow into the catchment basin and will tend to stay in the pavement layer.

  Under such circumstances, for example, Patent Document 1 discloses a pavement layer by forming a peripheral wall of a drainage basin and a height range around the upper end opening over the entire circumference or by forming a part of the circumferential direction as a permeable wall. There is disclosed a method for draining water that has flowed into the drainage wall through the permeable wall.

  In Patent Document 2, a drain hole is drilled in the receiving frame of the lid, and the receiving frame is installed on the upper surface of the drainage basin or the side groove, so that water flowing into the pavement layer flows into the drainage basin through the drainage hole. A method for draining the water is disclosed.

JP 2003-74111 A Japanese Patent Laid-Open No. 10-37286

  However, in Patent Document 1, since the process of forming a permeable wall on the peripheral wall of a concrete drainage basin, not only the manufacturing cost of the drainage basin tends to be high, but also the production work tends to be complicated. Similarly, in Patent Document 2, since it is necessary to perform a punching operation on the receiving frame, the operation is similarly likely to be complicated.

  In both Patent Documents 1 and 2, the lid surface of the lid that covers the upper end opening of the drainage basin is disposed perpendicular to the peripheral wall of the drainage basin. For this reason, for example, when installing a drainage basin at the end of the road, if you try to finish the lid surface of the lid to an inclined surface that is continuous with the paved surface of the road with a transverse slope, when installing the drainage basin, The axis had to be inclined according to the transverse gradient with respect to the vertical axis, and the work was complicated and the workability was poor.

  The present invention has been made in view of such problems, and its main purpose is to improve the workability while minimizing the processing of the water collecting main body, and to efficiently generate rain, snowmelt water, and the like. It is providing the lid structure which can collect water, and a water collecting tank provided with a lid structure.

  In order to achieve such an object, the lid structure of the present invention includes a lid frame installed on the upper edge surface of the catchment basin body, a lid body housed in the lid frame and covering the upper end opening of the catchment basin body, The lid frame includes a cylindrical rising portion provided with a lid height adjusting material on which the lid main body is placed on the inner peripheral side, and projects from the rising portion. A lid frame that is capable of supporting the lid frame by providing a gap between the overhanging portion that faces the upper small edge surface of the main body, and the upper portion of the water collecting main body. A support material is installed.

  According to the above-described lid structure of the present invention, a gap can be formed between the lid frame and the upper fore edge surface of the catchment basin body via the lid frame support material, so that the lid structure is only installed on the catchment basin body. With this simple structure, it is possible to provide a water inlet that uses the gap between the lid frame and the upper small face of the main body of the drainage basin on the peripheral wall of the drainage basin. It can be greatly reduced.

  In addition, since the lid body is housed in the lid frame in a mode of being placed on the lid height adjusting material, the lid surface is provided with a transverse gradient by appropriately adjusting the height of the lid height adjusting material. An inclined surface that is continuous with the pavement surface of the pavement area can be finished. As a result, when installing the catchment main body, complicated work such as inclining its axis according to the transverse gradient of the pavement surface with respect to the vertical axis can be omitted, and workability can be greatly improved. Become.

  The lid structure according to the present invention is characterized in that a near-one end is attached to the lower surface of the lid frame, and the other end is provided with a water guide material disposed in a pavement layer adjacent to the water collecting basin.

  According to the lid structure of the present invention described above, since the water guide material that extends into the pavement layer is attached to the lower surface of the lid frame, when the lid structure is installed on the water catchment main body, one end of the water guide material is the peripheral wall of the water catchment trap. It becomes the aspect located in the water inlet provided in. As a result, water such as rainwater and snowmelt water that has flowed into the pavement layer can be efficiently guided to the water inlet through the water guide, and can be smoothly collected in the water collecting basin.

  In the lid structure of the present invention, the protruding portion of the lid frame is provided on the outer peripheral surface of the rising portion and in the vicinity of the lower end portion, and is defined by the outer peripheral surface of the rising portion and the upper surface of the protruding portion. It is characterized by having a pavement area in the space.

  According to the lid structure of the present invention described above, in the conventional general water catchment, instead of the concrete rim that was present between the pavement region and the lid body so as to surround the lid body, A pavement layer can be formed. As a result, the continuity between the pavement surface of the pavement area and the lid surface of the lid body can be further increased, and water such as rain water and snowmelt water flowing down the pavement surface can be more smoothly guided to the lid body. It is possible to avoid a situation in which the beauty of the pavement area is damaged by the catchment.

  The catchment basin provided with the lid structure of the present invention described above is characterized in that the lid structure is connected to the catchment basin body through the lid frame support material.

  According to the water catchment of the present invention described above, the water catchment is arranged in the pavement area or adjacent to the pavement area, so that the space between the lid frame constituting the lid structure and the upper small face of the water catchment main body. Water, such as rain water and snowmelt water that has flowed into the pavement layer, is introduced into the catchment basin without being retained in the pavement layer around the catchment basin through the water inlet using the gap formed in It becomes possible.

  According to the present invention, it is possible to form a water inlet on the peripheral wall of the catchment basin only by installing the lid structure on the catchment basin body, while minimizing the processing to the catchment basin body and the lid frame, while paving layers Water can be collected efficiently, such as rainfall and snowmelt water that flows into the water. In addition, by simply adjusting the lid height adjusting material, the lid surface of the lid body can be continued with the pavement surface of the pavement area where the transverse gradient is provided, greatly improving the workability when installing the catchment. It becomes possible to improve.

It is a figure which shows a mode that the catchment basin in embodiment of this invention is installed adjacent to a pavement area | region. It is a figure which shows the detail of the catchment basin and cover structure in embodiment of this invention. It is a figure which shows the side surface of the cover structure in embodiment of this invention. It is a figure which shows the top view of the catchment basin in embodiment of this invention. It is a figure which shows the detail of the water guide material in embodiment of this invention. It is a figure which shows a mode that the water catchment is installed in the pavement area | region in embodiment of this invention. It is a figure which shows a mode that the water collection tank is installed in the conventional pavement area | region.

  The present invention is a water catchment installed in a pavement area such as a sidewalk, a roadway, a parking lot, a park, a building exterior, etc. on which a pavement layer is laid, and a lid structure provided for the water catchment, and a concrete pavement. Any pavement layer in which any pavement layer is laid, such as block pavement for asphalt pavement, can be used. In the present embodiment, a road where a block pavement layer is laid is taken as an example of a pavement area where a water collecting basin is installed, and the details thereof will be described below.

  As shown in FIG. 1, the block pavement 8 laid on the road where the drainage basin 1 is installed is composed of a roadbed 7 laid on the roadbed and a block pavement layer 6 constructed on the roadbed 7. It is configured. The block pavement layer 6 includes a paving sand layer 61, a paving block 62, and a joint material 63. The road bed 7 includes a lower road bed 71 and an upper road bed 72, and a water-impermeable layer 73 laid on the upper surface of the upper road bed 72, and does not allow the water flowing into the bed sand layer 61 to permeate the road bed 7 so-called impermeable structure. It has become.

  The catchment basin 1 disposed adjacent to the block pavement 8 described above includes a catchment basin body 2 and a lid structure 3, and the catchment basin body 2 becomes a catchment part as shown in FIG. 2. It consists of a cylinder made of concrete, comprising a hollow portion 21, a peripheral wall 22 surrounding the hollow portion 21, and an upper fore edge surface 23 in which an upper end opening is formed. A lid structure 3 having a steel structure is installed on the upper fore edge surface 23 of the catchment main body 2.

  As shown in FIGS. 2 and 3, the lid structure 3 includes a lid body 31, a lid frame 32, a lid height adjusting member 33, and a lid frame support member 34. The lid main body 31 is formed with a water passage hole and a water passage groove for allowing moisture such as rain water and snowmelt water to flow into the hollow portion 21 of the water collecting main body 2, and is stored in the lid frame 32. The upper end opening formed in the upper fore edge surface 23 of the catchment main body 2 is covered.

  The lid frame 32 includes a cylindrical rising portion 321 and an overhanging portion 322 that projects from the outer peripheral surface of the rising portion 321, and a lid height adjusting member 33 on which the lid main body 31 is placed on the inner peripheral side of the rising portion 321. Is provided. The lid height adjusting member 33 may be installed at any position as long as it is on the inner peripheral side of the rising portion 321. However, in the present embodiment, as shown in FIGS. Is arranged.

  Therefore, by appropriately adjusting the heights a and b of the pair of lid height adjusting members 33, the lid surface of the lid body 31 placed thereon is perpendicular to the peripheral wall 22 of the drainage basin body 2. It can be formed on a smooth surface or inclined at a desired angle. When the lid surface of the lid main body 31 is inclined, the upper end surface of the rising portion 321 is formed in accordance with this inclination, and the upper end surface of the lid main body 31 and the upper end of the rising portion 321 are formed as shown in FIG. It should be continuous.

  On the other hand, as shown in FIG. 2, the overhanging portion 322 that protrudes from the outer peripheral surface of the rising portion 321 has a surface that faces the upper fore edge surface 23 of the catchment main body 2, and a lid frame support member 34 is provided on this surface. Is provided. In the present embodiment, as shown in FIG. 4, four overhang portions 322 including the lid frame support member 34 are provided on the outer peripheral surface of the rising portion 321, but the number thereof is arbitrary. Good.

  As shown in FIG. 2, the lid frame support member 34 includes an insert nut 341 embedded in the upper fore edge surface 2 of the drainage tub main body 2 and a bolt 342 fitted to the insert nut 341. The bolt 342 passes through a through hole (not shown) provided in the overhang portion 322, and a screw groove that is screwed with the bolt 342 is provided on the inner peripheral surface of the through hole. Therefore, the overhang portion 322 is locked to the bolt 342 through the through hole. As a result, the lid frame support member 34 can support the lid frame 32 in a state where a gap is provided between the lid frame 32 and the upper fore edge surface 23 of the catchment main body 2 as shown in FIG.

  Further, since the lid frame support member 34 is constituted by the insert nut 341 and the bolt 342, it has a function of joining the catchment main body 2 and the lid structure 3. Therefore, after placing the lid structure 3 on the upper small edge surface 23 of the catchment main body 2, the gap between the lid frame 32 and the upper small edge surface 23 of the catchment main body 2 via the lid frame support member 34. By adjusting the lid to a desired amount, the lid structure 3 is connected to the catchment main body 2, whereby the catchment bottle 1 having a gap that can be used as the water inlet 35 on the peripheral wall is constructed.

  In this manner, the water collecting basin 1 can be constructed with a simple configuration in which the lid structure 3 and the water collecting basin body 2 are simply connected by the lid frame support member 34, and the water collecting basin body 2 and the lid frame 32 can be connected. Since the water inlet 35 can be provided on the peripheral wall of the catchment 1 while minimizing the processing, the manufacturing cost and production effort of the catchment 1 can be greatly reduced.

  As shown in FIG. 1, the water collecting trough 1 having the lid structure 3 having the above-described configuration is disposed at the road end of the road where the block pavement 8 is laid, and the water guiding material 5 is disposed at the water guiding port 35. The water guide port 35 and the water guide material 5 are installed so as to be located at a height in the sand layer 61 of the block pavement layer 6.

  As shown in FIG. 4, the water guide material 5 is composed of a band-shaped member whose member thickness is formed to be thin enough to fit in the sand layer 61, and as shown in FIG. 5, a filter material 51 that allows water to pass through, and a filter material 51 And a strip-shaped core member 52 having a water passage space 521 for guiding water that has passed through the filter member 51 in the longitudinal direction.

  The core material 52 is made of, for example, a belt-shaped flat plate such as a hard plastic material, and the cross-section in the width direction is formed into a wave shape or a shape in which a plurality of H-shapes are connected. Are provided in the width direction. The filter member 51 is a sheet-like member that covers the core member 52, and has openings or openings that allow water to pass through but do not allow the granular material constituting the sand layer 61 of the block pavement layer 6 to pass through. Yes. Although synthetic fiber is adopted as the material, for example, a nonwoven fabric or the like may be used.

  The water guide member 5 having the above-described configuration is such that one end projects into the hollow portion 21 of the water collecting main body 2 and the other end is disposed in the block pavement 8 with one end near the bottom surface of the lid frame 32. Thus, it is laid on the upper surface of the impermeable layer 73 constituting the roadbed 7 and embedded in the laid sand layer 61. As a result, the water flowing into the laying sand layer 61 through the paving block 62 or joint material 63 due to rain or the like flows into the laying sand layer 61 and then smoothly through the water guide 5 and the water inlet 35. The water is collected.

  In addition, as the water guide material 5, a board drain used in the ground improvement method for the soft ground is adopted in the present embodiment, but when a load such as a vehicle or a bicycle is applied via the block pavement layer 6, Any one of them may be adopted as long as it has a structure capable of collecting the water flowing into the bed sand layer 61 and conducting the water to the water inlet 35 while having a proof strength that does not break.

  Further, any means for attaching the water guide material 5 to the lower surface of the lid frame 32 may be used. When the height of the water inlet 35 is low, as shown in FIG. It is also possible to simply sandwich between the upper fore edge surface 23.

  Furthermore, the water inlet 35 is filled with the filler 4 around the water guide material 5 so that the particulate material constituting the sand layer 61 does not flow from the water inlet 35 into the hollow portion 21 of the catchment main body 2. It is good to leave.

  According to the water collecting trough 1 having the lid structure described above, water such as rain water and snowmelt water flowing into the block pavement layer 6 is collected through the water inlet 35 without staying around the water collecting trough 1. Water can be introduced into the main body 2. Therefore, it is possible to prevent moisture from being blocked by the peripheral wall of the catchment basin body 2 and staying in the bed sand layer 61 around the catchment basin 1 as in the past. It is also possible to suppress a phenomenon in which the supporting force of the sand layer 61 is reduced and the pavement block 62 is sunk or floated.

  The water collecting tank 1 provided with the lid structure 3 and the lid structure 3 of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, as shown in FIG. 1, when the catchment basin 1 is arranged at the road end, the above-described pair of lid height adjusting members 33 are arranged at two locations on the road end side and the road center side facing this. It is good to install in pairs. At this time, as shown in FIG. 2, the lid height adjusting material 33 having a low height a is placed on the road end side so that the lid surface of the lid body 31 is parallel to the pavement surface of the block pavement 8 inclined by the crossing gradient. In addition, a lid height adjusting member 33 having a high height b is arranged on the road center side, and the height difference is adjusted in advance.

  Thereby, the lid main body 31 accommodated in the lid frame 32 in a mode of being placed on the lid height adjusting material 33 finishes the lid surface to an inclined surface continuous with the pavement surface of the block pavement 8 provided with a transverse gradient. be able to. Therefore, when installing the catchment main body 2, troublesome operations such as tilting the axis with respect to the vertical axis can be omitted, and also when the lid frame 32 is installed on the catchment main body 2, What is necessary is just to install so that it may become in parallel with the upper end face 23 of the water collecting main body 2, and it becomes possible to improve a workability significantly. In addition, since the insert nut 341 and the bolt 342 are employed for the lid frame support member 34, the height and inclination of the lid body 31 can be further finely adjusted at the construction site.

  In the present embodiment, the lid height adjusting member 33 is a molded product manufactured in advance at a factory or the like, and is fixed to the inner peripheral surface of the rising portion 321, but is not necessarily limited thereto. A plurality of molded products having different heights are prepared as the lid height adjusting material 33, and are detachably fixed to the inner peripheral side of the rising portion 321 at the site, or the lid height adjusting material 33 is provided with a height changing function. Any of them may be adopted such as fixing to the inner peripheral side of the rising portion 321.

  Furthermore, in this Embodiment, as shown in FIG. 4, although the water conveyance material 5 is installed in three places of the water collecting basin 1, the quantity may be any and without using the water conveyance material 5. Alternatively, only the water inlet 35 may be provided. In this case, it is preferable to install a filter material that allows only water such as rain water or snowmelt water to pass through the water inlet 35.

  Further, in the present embodiment, the lid frame support member 34 is constituted by the insert nut 341 and the bolt 342, and a function is provided to support the lid frame 32 by providing a gap between the upper catch face 23 of the catchment main body 2. In addition, a structure having both the function of connecting the water collecting main body 2 and the lid structure 3 was adopted. However, the present invention is not necessarily limited to this, and any structure jig having the above-described functions may be employed. Alternatively, the lid frame support member 34 is provided with a function of supporting the lid frame 32 by providing a gap between the lid frame main body 2 and the upper edge surface 23 of the drainage basin body 2, and connecting the drainage basin body 2 and the lid structure 3. It is good also as a structure which provides the function to perform separately.

  In addition, the overhang portion 322 provided in the lid frame 32 of the lid structure 3 may be provided on the outer peripheral surface of the rising portion 321 and in the vicinity of the lower end portion. In this way, a pavement region can be provided in a space defined by the outer peripheral surface of the rising portion 321 and the upper surface of the overhang portion 322 above the upper fore edge surface 23 of the catchment main body 2.

  As a result, in a conventional general drainage basin, as shown in the plan view of FIG. 7A and the cross-sectional view of FIG. As shown in FIG. 1 and FIG. 6, the paving block 62 and the curb block 9 are arranged adjacent to the lid main body 31 in place of the concrete rim 10 exposed between the block 62 and the concrete block 62. it can. Thereby, the continuity of the pavement surface of the block pavement 8 and the cover surface of the lid main body 31 can be further increased, and the water flowing down the pavement surface of the block pavement 8 can be smoothly introduced into the water collecting basin 1. At the same time, as shown in FIG. 6, it is possible to improve the aesthetics of the road on which the block pavement 8 is laid.

DESCRIPTION OF SYMBOLS 1 Catchment basin 2 Catchment basin body 21 Hollow part 22 Peripheral wall 23 Upper edge surface 3 Lid structure 31 Lid body 32 Lid frame 321 Rising part 322 Overhang part 33 Lid height adjustment material 34 Lid frame support material 341 Insert nut 342 Bolt 35 Lead Water inlet 4 Filling material 5 Water conducting material 51 Filter material 52 Core material 521 Water passing space 6 Block pavement layer 61 Laying sand layer 62 Pavement block 63 Joint material 7 Roadbed 71 Lower roadbed 72 Upper layer roadbed 73 Impervious layer 8 Block pavement 9 Curb block 10 Margin

Claims (4)

A lid structure provided with a lid frame installed on the upper end surface of the catchment basin body, and a lid body housed in the lid frame and covering an upper end opening of the catchment basin body,
The lid frame has a cylindrical rising portion provided with a lid height adjusting material on the inner peripheral side of the lid main body, and projects from the rising portion and is opposed to the upper small edge surface of the catchment main body. And an overhanging portion,
The lid structure is characterized in that a lid frame support member capable of supporting the lid frame with a gap provided between the overhanging portion and the upper small edge surface of the catchment main body is installed. The lid structure according to claim 1,
A lid structure comprising a water guide material having a vicinity of one end attached to the lower surface of the lid frame and the other end disposed in a pavement layer adjacent to the water collecting basin. The lid structure according to claim 1 or 2,
The overhang portion of the lid frame is provided on the outer peripheral surface of the rising portion and in the vicinity of the lower end portion,
A lid structure comprising a pavement region in a space defined by an outer peripheral surface of the rising portion and an upper surface of the overhang portion. A drainage basin comprising the lid structure according to any one of claims 1 to 3,
The water collecting basin characterized in that the lid structure is connected to the water basin main body through the lid height adjusting member.