KR20120064873A - Eco-matrix panel and connecting structure of eco-matrix panels - Google Patents

Abstract

PURPOSE: A grating plate for retaining earth having a secure connection structure and a connection structure thereof are provided to enable easy planting in an earth surface by naturally sending surface water to the earth surface. CONSTITUTION: A grating plate(1) for retaining earth having a secure connection structure comprises coupling members(2) and concave parts. Each coupling member is composed of a protruded extension part and a vertical part. The protruded extension part is outward extended from the bottom of an outer wall(10). The vertical part is vertically extended from the outer end of the protruded extension part. The coupling members are protruded from the outer surfaces of the outer walls. The concave parts are formed on the outer surfaces of the outer walls.

Description

Soil-retaining grating with strong connection structure and its connection structure {Eco-Matrix Panel and Connecting Structure of Eco-Matrix Panels}

The present invention is installed on the ground surface in the road, sidewalk, parking lot, rooftop or slope to maintain the soil surface in a partitioned form to prevent the loss of soil soil, and induce natural growth of plants and the like while protecting the natural ground surface The present invention relates to a lattice board and a connection structure for allowing greening, and specifically, a partition for retaining soil having a structure partitioned into a plurality of spaces by partition walls and which can be connected firmly by a plurality of easy methods. And its connection structure.

When forming pedestrian walkways, roads through which vehicles pass, or parking lots, it is common to lay concrete or asphalt pavement on the ground for the purpose of flattening the road surface due to the loss of soil. However, since concrete or asphalt pavement laid on the ground surface is impermeable, surface water such as rainwater does not penetrate such an impermeable pavement and flows along the pavement surface and just flows into the river.

For this reason, the inflow of surface water into the ground is sharply decreasing, and the groundwater level is getting lower. Such a lack of groundwater (ground water level decrease) causes a variety of problems, for example, ground subsidence occurs due to the water pressure drop caused by groundwater, such as adversely affect the building safety.

Attempts have been made to install blocks made of permeable concrete to install permeable blocks on roads, but permeable blocks have a limitation that they do not exhibit sufficient permeability. The extremely small plant vegetation area is disadvantageous for the greening of the surface.

The present invention was developed in order to solve the problems of the prior art as described above, and specifically, when forming a sidewalk, a road through which a pedestrian passes, a road through which a vehicle passes, or a parking lot, etc., while preventing the loss of soil on the ground surface, The purpose of this is to prevent the groundwater shortage caused by the above impervious pavement and to create a favorable condition for plant growth by making surface water easily and naturally absorbed into the surface and penetrating into the ground. do.

In order to achieve the above object, in the present invention, formed by four outer walls to have a rectangular inner space, the inner wall of the square is installed in the inner wall of the square is divided into a plurality of rectangular small space of the small square inner space The rectangular small space is a lattice plate which is installed on the ground surface so that soil is filled, and a coupling member comprising a bottom portion extending outwardly from the bottom of the outer wall and an upright portion continuous standing upward from the outer end of the bottom portion, It is provided to protrude on the outer surface of the outer wall of one side so that there is a gap between the inner surface of the upright portion and the outer surface of the outer wall; The thickness of the upright portion gradually increases from the upper end portion to the lower end portion of the upright portion, and after passing the apex, the thickness of the upright portion gradually becomes thin again, so that a protrusion is formed on the inner surface of the upper portion of the upright portion; When combined with the neighboring grating, the outer wall of the other side, which is fitted in the gap between the inner surface of the upright portion of the neighboring grating and the outer surface of the outer wall, is recessed to correspond to the shape of the protrusion projecting to the inner surface of the upstanding portion. A recess of the shape is formed; A cutout portion is formed below the portion where the concave portion is formed in the outer wall, which is cut off and removed by the height of the bottom portion from the lower end portion of the outer wall; When the neighboring gratings are joined to each other, the outer wall on which the recesses of the neighboring gratings are formed is fitted in the gap between the inner surface of the upright portion and the outer wall outer surface of the outer wall where the joining member is formed, while the protrusions and the concave portions of the upright portion are engaged with each other. Provided is a grating plate having a configuration to be fastened and connected to each other.

In the grating plate of the present invention, the outer wall of the section in which the coupling member is not provided among the plurality of sections of the outer wall divided in the longitudinal direction by the inner wall of the lattice has a gap in which the surface water can flow horizontally between the lower end and the ground surface. To be present, the bottom height of the outer wall may be reduced.

In the present invention, in order to achieve the above object, there is provided a connection structure of the grid plate having the above configuration.

Particularly, in the present invention, all or part of the sections which constitute the grating plate, but the plurality of sections of the outer wall divided into plural in the longitudinal direction of the outer wall by the lattice inner wall are curved in the outer wall. To have a bent shape; When the grids are arranged next to each other, the outer wall sections having a curved shape curved inwardly face each other to form a fitting space; The wedge portion of the fastening wedge member configured to have a wedge portion vertically intruding into the ground surface, a horizontal portion coupled horizontally to an upper portion of the wedge portion, and a downward extension portion extending vertically downward from each end of the horizontal portion. The outer wall is vertically inserted into the fitting space and inserted into the ground surface and fixed to each other, and the outer walls having the curved shape bent inwardly are fitted into the fitting gap existing between the downward extension portion and the wedge portion of the fastening wedge member. A connecting structure of a grating plate is provided.

When the grid according to the present invention is installed on the surface of a road, a sidewalk, a parking lot, or a roof of a building, the soil may be filled in a plurality of rectangular small spaces inside the grid, and thus, the grid of the present invention may still be present on the surface. Soil can be maintained without being lost, and the soil is filled in the small space of the grating to form a favorable condition for plant growth. Thus, the soil can be planted and easily grown through the soil contained in the grating so that the ground surface can be easily recorded. It becomes possible.

In addition, when the ground surface is paved using the grid according to the present invention, the surface water can be easily and naturally absorbed into the ground surface and permeated into the ground, thereby preventing the groundwater shortage caused by the impermeable paving.

In particular, in connecting the grating plate according to the present invention, it has a mechanical fastening method between the coupling member and the concave portion, even if there is an uneven settlement on the lower ground on which the grating plate is placed, the grating plate neighboring from the inner surface of the upright portion and the outer wall outer surface The outer walls of the do not easily come out, and the upper surfaces of the grid plates disposed adjacent to each other do not have a stepped step due to the height difference, so that the vehicle or the like does not have difficulty in passing over the upper surface of the grid.

Furthermore, in the present invention, when connecting the grid plate, by forming the fitting space by facing the outer wall sections having a curved shape inwardly to each other, by using the fitting space to install the fastening wedge member on the ground, The effect of being able to connect the grid more firmly is exerted.

1A and 1B are schematic perspective views illustrating a grating plate according to the present invention with different viewing directions, respectively.
FIG. 2A is a schematic perspective view illustrating a state in which soil is filled and a plant is planted in the grating plate of the present invention shown in FIG. 1A.
2B is a schematic cross-sectional view of the ground surface with the grating plate of the present invention disposed on the ground surface.
3 is a schematic perspective view illustrating a process in which two gratings according to the present invention are disposed adjacent to each other and combined.
FIG. 4 is a schematic perspective view of two gratings coupled by the process illustrated in FIG. 3.
FIG. 5 is a schematic cross-sectional perspective view taken along line AA of FIG. 4.
6 to 8 are side cross-sectional views, respectively, of circle B of FIG. 5 sequentially showing a coupling relationship between a coupling member and a recess.
9 is a view of another embodiment of the coupling relationship between the coupling member and the recess, and is a schematic view showing a coupling state between the binding member and the recess.
FIG. 10 is a side cross-sectional view corresponding to FIG. 8, illustrating a coupling state between the coupling member and the recess in the embodiment illustrated in FIG. 9.
Figure 11 is a perspective view corresponding to Figure 4, is a perspective view of another embodiment of the present invention is added horizontal resistance coupling by the fastening wedge member.
12 is a schematic cross-sectional view taken along line CC of FIG. 11.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

1A and 1B are schematic perspective views showing the grating plate 1 according to the present invention in different directions, respectively. As shown in the figure, the grating plate 1 according to the present invention is surrounded by four outer walls 10 and has a rectangular box shape with an open top surface. All or part of the lower surface of the grid 1 in the form of a rectangular box is open. In the rectangular space formed by the four outer walls 10 of the grating plate 1, a grating inner wall 11 partitioned into a lattice shape is provided, and the rectangle of the grating plate 1 is formed by the grating inner wall 11. The interior space is divided into a plurality of rectangular small spaces of small size. For reference, in this specification, "vertical direction" refers to the arrow z-z direction of FIG. 1A and "up" and "down" indicate up and down in the vertical direction, respectively. In the drawing, reference numeral 18 denotes a bottom blocking plate 18 provided on the bottom surface of the grating plate 1.

In this way, the grid plate 1 partitioned inside into a plurality of small rectangular small spaces is disposed on the ground surface, and the soil is filled in the small space. FIG. 2A is a schematic perspective view showing a state in which soil is filled and plants are planted in the grating plate 1 shown in FIG. 1A, and FIG. 2B is a view of the ground surface when the grating plate 1 of the present invention is disposed on the ground surface. A schematic cross section.

As shown in FIGS. 2A and 2B, the grating plate 1 according to the present invention is installed on the ground surface, and the inner space surrounded by the outer wall 10 is partitioned by the grating inner wall 11 to form the inside of the grating plate 1. Soil is filled in the plurality of rectangular small spaces. Therefore, while the earth and sand continue to exist on the ground surface, the earth and sand can be maintained without being lost by the grid plate 1 of the present invention. In addition, the soil is filled in the small space, the plant is planted and easily grown, it is possible to easily green the ground surface. Therefore, when the grid 1 according to the present invention is laid on the road, sidewalk, parking lot, or roof of the building, and the soil surface is filled to form the upper surface of the ground, the upper surface of the ground can be preserved in the soil state while preventing the loss of the soil. The surface water can be easily and naturally absorbed into the ground and permeated into the ground to prevent groundwater shortage caused by the impermeable pavement, and to create a favorable condition for plant growth. There is an advantage. The grating plate 1 according to the present invention may be made of a synthetic resin material, in particular, it may be produced using waste plastics. Therefore, it is also very useful for resource recycling.

Meanwhile, as illustrated in FIGS. 1A and 1B, an anti-slip protrusion 19 may protrude from an upper surface of the outer wall 10 of the grating plate 1. The anti-slip protrusion 19 may be formed to protrude from the upper surface of the grid inner wall 11. When the anti-slip protrusion 19 protrudes from the upper surface of the grating plate 1 in this way, the effect of reducing the occurrence of the sliding phenomenon by increasing the friction force when the pedestrian or the vehicle passes over the grating plate 1 is exerted. Since the anti-slip protrusion 19 is provided for convenience and may be omitted, the illustration of the non-slip protrusion 19 is omitted for convenience in the remaining drawings except for FIGS. 1A and 1B. The anti-slip protrusion as described above may protrude from the lower surface of the outer wall 10 and further to the lower surface of the inner wall 11 of the grating. When the anti-slip protrusion is formed on the lower surface of the grating plate 1, the grating plate ( When 1) is placed on the ground, it serves to increase the friction force between the ground and the grid plate (1). The drawing attached to this specification omits the illustration of the non-slip protrusion provided in the lower surface of the grating board 1 in this way.

In order to cover a wide range of the ground surface is connected to a plurality of grid plates 1 of the present invention, in the present invention, the grid plate 1 is configured as follows to achieve a solid connection between the grid plates (1).

On the outer surface of the outer wall 10 in the grating plate 1 of the present invention, a coupling member 2 for protruding integrally with another grating plate to be disposed adjacent to and continuous is provided. FIG. 3 is a schematic perspective view illustrating a process in which two gratings are arranged adjacent to each other, and FIG. 4 is a schematic perspective view of two gratings coupled to each other. FIG. 5 is a schematic cross-sectional perspective view taken along line A-A of FIG. 4. 6 to 8 show side cross-sectional views of the circle B portion of FIG. 5 sequentially showing the coupling relationship between the coupling member 2 and the recessed portion 3 described later. 3 to 8, for convenience, the two grid plates 1 will be described as being divided into a first grid plate 1A and a second grid plate 1B, respectively. That is, in the present specification and the drawings, the lattice board itself is referred to as "lattice board 1", and when describing the state in which the two lattice boards are connected, the two lattice boards are referred to as "first lattice board 1A" and "first". 2 grid plate 1B ".

As shown in detail in FIG. 5, the coupling member 2 provided in the grating plate 1 of the present invention includes a protrusion extension part 21 extending outward from a lower portion of the outer wall 10 and the protrusion extension part. It consists of a standing upright portion 22 which is erected upward from the outer end of 21. Therefore, a gap exists between the inner surface of the upright portion 22 and the outer surface of the outer wall 10.

When assembling the grating plate of the present invention, while the first lattice plate 1A is already disposed on the ground surface, the new second lattice plate 1B is vertically lowered to be joined adjacent to each other. At the interval between the inner surface of the upright portion 22 (surface facing the outer surface of the facing outer wall) of 1A) and the outer surface of the outer wall 10, the outer wall of the newly arranged second grid plate 1B is inserted vertically. At this time, to have a mechanical coupling to have the following configuration.

A protruding portion is formed on an inner surface of the upright portion 22. 4 to 8, the protrusion formed in the upright portion 22 gradually increases in thickness from the upright portion 22 while going from the upper end portion of the upright portion 22 to the lower end portion. After the last time, the upright portion 22 may be formed by gradually thinning again.

On the other hand, in the grating plate 1 of the present invention, the outer wall in which the coupling member 2 is not formed as described above among the four outer walls is formed in the same manner as described above in the coupling member 2 provided in the outer wall of the neighboring grating plate. The outer wall is coupled in such a manner that the outer wall is fitted in a gap in the direction of the inner surface of the upright part 22 of the coupling member 2, in which a mechanical coupling is made between the upright part 22 and the outer wall.

On the outer wall where the coupling member 2 is not provided, a recess 3 is formed on the inner surface of the upright portion 22 of the coupling member 2. In the case of the embodiment shown in Figures 4 to 8, the concave portion 3 has a form that is recessed to correspond to the shape of the protrusion described above. However, as will be described later, when the shape of the protrusion formed in the upright portion 22 is changed, the concave portion 3 may be made in the form of a through hole accordingly.

In the embodiment shown in the figure, the upright portion 22 of the coupling member 2 has a rectangular plate shape. In this case, the area in which the concave portion 3 is formed also has a square area. In addition, a cutout portion 31 is formed below the portion where the recess 3 is formed in the outer wall 10 and is cut off and removed by the height of the protruding extension portion 21 at the lower end of the outer wall 10. It is. Therefore, for the coupling between neighboring gratings, between the outer wall 10 of the grating plate already installed and the inner surface of the upright part 22, the outer wall 10 where the concave portion 3 of the grating plate to be newly joined is formed. When fitted, the protruding extension portion 21 of the coupling member 2 is located in the cutout portion 31, so that the upper surface height between neighboring grating plates 1 is the same.

6 to 8, when the neighboring first lattice plate 1A and the second lattice plate 1B are coupled to each other, an outer wall of the first lattice plate 1A having the coupling member 2 formed thereon, The outer walls of the second grid plate 1B in which the recesses 3 are formed are joined to face each other.

Specifically, two neighboring gratings are joined to each other by lowering the second lattice plate 1B vertically from the top to the bottom adjacent to the first lattice plate 1A. As illustrated in FIG. 6, the second lattice plate 1B is coupled to each other. The outer side wall 10 in which the recessed part 3 is formed among the outer side walls of the upright part 22 of the coupling member 2 provided in the outer side wall 10 of the 1st grid plate 1A, and the 1st grid plate 1A is formed. Is sandwiched between the outer surface of the outer wall.

At this time, since the upright portion 22 has elasticity and the inside surface of the upright portion 22 gradually increases from the top to the apex of the protrusion, the outer wall of the second grid plate 1B is fitted as shown in FIG. 7. As a result, the upright portion 22 is pushed outward. When the outer wall of the second lattice plate 1B is fully fitted between the upright portion 22 of the first lattice plate 1A and the outer wall facing it, the upright portion 22 is restored by elasticity and is shown in FIG. 8. As shown, the protrusion of the upright part 22 is fitted to the concave part of the concave part 3 of the second lattice plate 1B, and the upright part 22 presses the concave part 3 to concave the coupling member 2 and the concave part. The parts 3 are mechanically firmly coupled to each other. In the mechanical coupling method between the protrusions and the recesses 3 of the upright part 22, when the first lattice plate 1A and the second lattice plate 1B are coupled, the upright part 22 must be applied in a vertical direction. The fastening is made between the protrusions and the recesses 3, and in order to separate the first lattice plate 1A and the second lattice plate 1B, a considerable force is required in the vertical direction. That is, a firm fastening is made between the protrusion of the upright part 22 and the recessed part 3.

Such a secure fastening has a very important advantage in the occurrence of uneven settlement of the ground. The inner surface of the upright portion 22 of the coupling member 2 and the first grid plate 1A of the coupling member 2 provided on the outer wall of the first grid plate 1A without having a mechanical fastening method between the coupling member 2 and the recess 3 In the structure in which the outer wall of the second lattice plate 1B is simply sandwiched between the outer surface of the outer wall, in case of uneven settlement of the lower ground on which the lattice plate is placed, the neighboring first lattice plate 1A and second The grating plate 1B moves perpendicularly to each other without any restrictions on each other, so that the outer wall of the second lattice plate 1B easily escapes between the inner surface of the upright portion 22 and the outer wall of the outer side of the first lattice plate 1A, and as a result, The height difference occurs in the upper surface of the 1st grid plate 1A and the 2nd grid plate 1B, and a phenomenon generate | occur | produces a step | step. If the upper surfaces of the grids continuously arranged on the ground surface do not continue in this manner and have a stepped step, pedestrians or vehicles are caught in steps, which causes a great difficulty in passing over the upper surface of the grid.

However, in the case of the present invention, since it has a rigid mechanical fastening method between the coupling member 2 and the concave portion 3, even if an uneven settlement occurs in the lower ground where the lattice plate is placed, the inner surface of the upright part 22 and the first lattice plate 1A. The outer wall of the second lattice plate 1B does not easily come out from between the outer walls of the outer wall, and the upper surface of the first lattice plate 1A and the second lattice plate 1B may be tilted, but there is a stepped step due to the height difference. It doesn't. Therefore, the effect that the vehicle or the like does not cause difficulty to pass on the upper surface of the grid is exerted.

9 is a view illustrating another embodiment of the coupling relationship between the coupling member and the recess, and a schematic view showing a coupling state between the coupling member and the recess is illustrated, and FIG. 10 is a side cross-sectional view corresponding to FIG. 8. In the embodiment shown in Figure 9 is a side cross-sectional view showing a state in which the coupling member and the recess is coupled to each other, in the present invention, the protrusion formed on the inner surface of the upright portion 22 and the corresponding recess 3 is The shape may be modified as shown in FIGS. 9 and 10.

That is, as illustrated in FIGS. 9 and 10, the protrusions formed on the inner surface of the upright part 22 gradually increase in thickness from the top part of the upright part 22 from the upper end part to the lower end part of the upright part 22. After passing through the upright portion 22 can be made in a shape that is rapidly reduced in thickness. In this case, the recesses 3 corresponding to the protrusions may be made in the form of simple holes (through holes as shown in FIGS. 9 and 10).

Therefore, in the structure of the protrusion part and the recessed part 3 as shown in FIG. 9, when the adjacent 1st grid plate 1A and the 2nd grid plate 1B are combined, the recessed part (1) of the outer wall of the 2nd grid plate 1B ( 3, the outer wall 10 is formed between the inner surface of the upright portion 22 of the coupling member 2 provided on the outer wall 10 of the first grid plate 1A and the outer wall outer surface of the first grid plate 1A. When fitted, the protrusions to be formed on the inner surface of the upright portion 22 as shown in FIG. 10 are fitted into the recessed recesses 3 in the form of holes. In such a configuration, even when the outer wall of the second grid plate 1B (the outer wall 10 having the recessed portion formed in the through hole shape in FIG. 10) is pulled upward, the second grid plate 1B is the inner surface of the upright part 22 and the first grid plate. It does not come out easily between the outer surfaces of the outer wall of 1A. That is, a more robust mechanical fastening is made between the coupling member 2 and the recess 3. Therefore, even if an uneven settlement occurs in the lower ground on which the lattice plate is placed, the possibility of generating a stepped step becomes further lowered.

On the other hand, in the connection structure of the present invention for connecting a plurality of gratings to each other, as described later, the fastening wedge member 4 may be additionally used.

FIG. 11 is a perspective view corresponding to FIG. 4, showing a perspective view of another embodiment of the present invention in which a horizontal resistance coupling by a fastening wedge member 4 is added, and FIG. 12 is a line CC of FIG. 11. A schematic cross section in accordance with is shown.

First, the configuration of the fastening wedge member 4 will be described. The fastening wedge member 4 includes a wedge portion 41 vertically inserted into the ground surface and a horizontal portion which is horizontally coupled to an upper portion of the wedge portion 41. And a downward extension portion 43 extending vertically downward from each of both ends of the horizontal portion 42. The fitting interval 44 is present between the downwardly extending portion 43 and the wedge portion 41.

In the grating plate 1 of the present invention, the lattice inner wall 11 is disposed in the inner space formed by the four outer walls 10 so that each outer wall 10 is in the longitudinal direction by the lattice inner wall 11. It is divided into a plurality of sections. As described above, there are sections in which the coupling member 2 is provided as described above, but there are sections in which the coupling member 2 is not provided. All or part of the section in which the coupling member 2 is not provided in the plurality of sections of the outer wall 10 separated by the grid inner wall 11 may have a shape in which the outer wall 10 is curved inwardly.

When the first grid plate 1A and the second grid plate 1B are adjacent to each other, when the sections of the outer wall 10 having a curved shape curved inwardly face each other, the fastening wedge member 4 is inserted. The space 40 is formed. That is, as illustrated in FIGS. 11 and 12, when the outer wall 10 sections having the curved shape curved inward face each other and the fitting space 40 is formed, the wedge portion 41 of the fastening wedge member 4 is formed. ) Is inserted vertically into the fitting space 40 is inserted and fixed to the ground surface. At this time, the outer wall 10 is fitted into the fitting interval 44 existing between the downwardly extending portion 43 and the wedge portion 41 of the fastening wedge member 4. When the fastening wedge member 4 is provided between two neighboring gratings in this way, the grating plate is strongly adhered to and fixed to the ground surface by the fastening wedge member 4, and a force that opens between the grating plates is Even if it works, due to the configuration that the outer wall 10 is fitted to the fitting interval 44 existing between the downward extension portion 43 and the wedge portion 41 of the fastening wedge member 4, the two neighboring The outer walls 10 between the gratings are prevented from moving away from each other. That is, the phenomenon in which the grating boards are horizontally spaced apart can be effectively prevented by the fastening wedge member 4.

Although not shown in detail in the drawings, the outer wall of the section in which the coupling member 2 is not provided among the plurality of sections of the outer wall 10 divided by the lattice inner wall 11 in the longitudinal direction is disposed between the lower end and the ground surface. The height of the bottom may be reduced such that there is a gap therein. That is, the lower end of the outer wall of the section in which the coupling member 2 is not provided among the plurality of sections of the outer wall 10 divided in the longitudinal direction by the lattice inner wall 11 is reduced, so that the overall vertical length is reduced. ) May be lower than the vertical length of the outer wall of the section. In this configuration, when there is a gap between the bottom of the outer wall 10 and the ground surface, when the surface water flows through the earth and sand contained in the grid 1, the surface water does not flow only in the vertical direction, The surface water can flow even in the horizontal direction through the gap between the surface, so that the surface water can be absorbed more smoothly. In particular, when the grating plate according to the present invention is installed on the surface of the inclined surface, rainwater can flow inclined through the gap existing between the lower end of the outer wall 10 and the ground surface to ensure a smooth flow of the rainwater on the inclined surface. The effect that can be done is exerted.

1: grating
2: coupling member
3: recess
10: outer wall
11: inner wall of grid

Claims (4)

It is formed by four outer walls 10 and has a rectangular inner space. The inner grid 11 is provided in the rectangular inner space so that the rectangular inner space is partitioned into a plurality of rectangular spaces. As the grating plate 1 which is installed on the ground surface to be filled,
Coupling member (2) consisting of a protruding extension portion 21 extending from the lower portion of the outer wall 10 to the outside, and an upright portion 22 that is erected upward from the outer end of the protruding extension portion 21, Protrudes from an outer surface of the outer side wall 10 on one side such that a gap exists between the inner surface of the upright portion 22 and the outer surface of the outer wall 10;
The thickness of the upright portion 22 gradually increases from the upper end portion of the upright portion 22 to the lower portion thereof, and after passing the apex, the thickness of the upright portion 22 decreases, so that a protrusion portion is formed on the inner surface of the upright portion 22. Is formed;
When combined with the neighboring grating, the outer surface of the outer side wall 10 on the other side, which is fitted in the gap between the inner surface of the upright portion 22 and the outer surface of the outer wall 10 of the neighboring grating, A concave portion 3 in the form of a recess or a hole is formed so as to correspond to the shape of the protruding portion;
At the lower side of the outer wall 10 where the concave portion 3 is formed, a cutout portion 31 is formed which is cut and removed by the height of the protruding extension portion 21 from the lower end of the outer wall 10. there is;
When neighboring gratings are joined to each other, an outer wall on which the concave portion 3 of the neighboring gratings is formed is sandwiched between the inner surface of the upright portion 22 and the outer wall outer surface of the outer wall on which the engaging member 2 is formed. The grid, characterized in that the projecting portion and the concave portion (3) of the upright portion (22) is fastened while engaging with each other to have a configuration to be connected to each other.
The method of claim 1,
The outer wall of the section in which the coupling member 2 is not provided among the plurality of sections of the outer wall 10 divided in the longitudinal direction by the grid inner wall 11 is a gap in which the surface water can flow horizontally between the lower surface and the ground surface. The grating board, characterized in that the bottom height of the outer wall is configured to be reduced to exist.
It is formed by four outer walls 10 and has a rectangular inner space. The inner grid 11 is provided in the rectangular inner space so that the rectangular inner space is partitioned into a plurality of rectangular spaces. As the connection structure of the grating 1 installed on the ground surface to be filled,
The grid plate 1,
Coupling member (2) consisting of a protruding extension portion 21 extending from the lower portion of the outer wall 10 to the outside, and an upright portion 22 that is erected upward from the outer end of the protruding extension portion 21, Between the inner surface of the upright portion 22 and the outer surface of the outer wall 10 is provided to protrude on the outer surface of the outer wall 10 on one side, the upright portion (going from the upper end to the lower end of the upright portion 22) 22, the thickness gradually increases, and after passing the apex, the thickness of the upright portion 22 becomes thin again, so that a protrusion is formed on the inner surface at the top of the upright portion 22, and when combined with a neighboring grid, Corresponding to the shape of the protruding portion protruding to the inner surface of the upright portion 22 on the outer surface of the outer side wall 10 on the other side, which is fitted in the gap between the inner surface of the upright portion 22 and the outer surface of the outer wall 10 of the neighboring grating plate. To concave or pipe The recessed part 3 of the form which is dug by the through-hole is formed, and in the lower part of the outer side wall 10 in which the said recessed part 3 is formed, at the lower end part of the outer side wall 10, the said protrusion extension part 21 is carried out. Has a structure in which a cutout portion 31 which is cut out and removed by a height of? Is formed;
When neighboring gratings are joined to each other, an outer wall on which the concave portion 3 of the neighboring gratings is formed is sandwiched between the inner surface of the upright portion 22 and the outer wall outer surface of the outer wall on which the engaging member 2 is formed. The connecting structure of the grating plate, characterized in that the projecting portion and the concave portion (3) of the upright portion (22) is engaged while being engaged with each other and the neighboring grating plate (1) is connected to each other.
The method of claim 3,
All or part of the section in which the coupling member 2 is not provided among the plurality of sections of the outer wall 10 divided into a plurality of sections of the outer wall 10 in the longitudinal direction of the outer wall 10 by the grid inner wall 11 is the outer wall 10. It has a curved shape inwardly;
When the grids are arranged adjacent to each other, the section 10 of the outer wall 10 having a curved shape bent inward to face each other to form a fitting space 40;
A wedge 41 vertically penetrating the ground surface, a horizontal portion 42 horizontally coupled to an upper portion of the wedge portion 41, and vertically extending downward from each end of the horizontal portion 42; The wedge portion 41 of the fastening wedge member 4 configured to have a downward extension portion 43 is inserted vertically into the fitting space 40, is inserted into the ground surface and fixed, the fastening wedge member 4 Connection structure of the grating plate, characterized in that the outer wall 10 having a curved shape bent inwardly into the fitting interval 44 existing between the downward extension portion 43 and the wedge portion 41 of the fitted state .

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