KR20170054998A - Grating component made from metal plate, grating having the same and, manufacturing methods of the grating - Google Patents

Abstract

According to the present invention, a grating enables an edge portion of a metal plate to be perpendicularly bent to be a support unit and has a plurality of drains formed inside an edge. A plurality of grating components are coupled through a non-welding method or a welding method, so that the grating can be easily made to have various areas and various shapes. Moreover, the grating can be manufactured through the non-welding method without having a bearing bar and a cross bar of the existing grating, so that a grating manufacturing process is simple and has improved productivity.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grating component made of a metal plate, a grating formed by assembling the grating component, and a grating component made from the same,

More particularly, the present invention relates to a grating having a structure in which a rim of a metal plate is bent and supported vertically and a plurality of drain holes are formed inside a rim, and a plurality of grating components are joined horizontally, The present invention relates to a grating which can be easily manufactured in a wide area and a shape and can be manufactured in a cost-free manner without existing bearing bars and cross bars of a grating, so that the manufacturing process can be simplified and productivity can be enhanced.

The present invention also relates to a grating component used in such a grating and a grating manufacturing method.

Generally, the grating is widely used as a cover for a rainwater drainage channel installed in a road, a residential complex, a subway, etc., and usually includes a plurality of rectangular gratings.

1, the grating 1 includes an end bar 2 having a rectangular internal space, a plurality of bay ring bars 3 provided inside the end bar 2, and a cross bar 4 .

The baying bar 3 supports most of the load applied to the grating 1, and a plurality of the baying bars 3 are arranged parallel to each other at equal intervals. Both ends of the bearing bar (3) are welded to the end bar (2).

The cross bar 4 is installed at the upper end of the bearing bar 3 so as to be perpendicular to the bearing bar 3 and is welded to the bearing bar 3 and the end bar 2. [ The cross bar (4) serves to maintain the interval of the bearing bar (3).

The grating 1 having such a structure has a problem that it requires a lot of work time and cost to manufacture and weld the end bar 2, the bearing bar 3 and the cross bar 4 respectively.

In addition, since the bearing bar 3 is welded to the end bar 2 and the cross bar 4 is welded to the bearing bar 3 and the end bar 2, Many welding tasks are required. However, there is a problem that the quality of the welding depends on the skill level of the worker, so that the quality of the product may deviate significantly.

Since the grating 1 has the structure in which the bearing bar 3 and the cross bar 4 are provided inside the rectangular space formed by the end bar 2, the shape and / or the width thereof can not be easily changed, There is a problem that the grating of the area and the shape must be repeatedly installed. If the shape and / or the width of the grating 1 is changed, it is necessary to newly manufacture the end bar 2, which is time-consuming and expensive.

On the other hand, the grating 1 has a plurality of rectangular holes formed by the cross bar 4 and the bearing bar 3, and the odor is raised through such holes.

However, since the rectangular hole is a passage through which rainwater is moved downward, for example, to a collecting / discharging path, it is necessary to maintain the opened state and seal the rectangular hole It is not easy to block bad odors because they collide with each other.

It is an object of the present invention to provide a grating which can be easily formed into various widths and shapes since a plurality of grating components are coupled horizontally.

Still another object of the present invention is to provide a grating which can ensure uniformity of product quality because it can be manufactured in a non-cost manner.

Another object of the present invention is to provide a grating which can shorten the manufacturing process and the working time because the bearing bar 3 and the cross bar 4 are not required, and thus the productivity can be increased.

It is still another object of the present invention to provide a grating capable of being formed by appropriately adjusting (selecting) a width W and a length L of a grating component, a height H of a support, and a thickness of a metal plate, And the like.

It is still another object of the present invention to provide a grating capable of efficiently filtering bad odors while discharging rainwater downward well.

It is another object of the present invention to provide a grating component provided in such a grating.

It is still another object of the present invention to provide a method of manufacturing such a grating.

The present invention relates to a grating capable of solving the above problems, a grating component used for manufacturing such a grating, and a method of manufacturing the same (in the present invention, a plurality of grating components horizontally coupled to each other to form a grating).

The grating component comprises first and second supporting portions 21 and 25 formed by vertically bending a rim of a flat metal plate P and a second supporting portion 21 and 25 formed inside the first and second supporting portions 21 and 25, (10). The load acting on the main body 10 is supported by the first and second supporting portions 21 and 25 and the reinforcing bar 110 and the conventional grating bearing bar 3 for supporting the load and the bearing bar 3 The cross bar 4 is not provided.

The main body 10 is formed in a rectangular shape. The first support part 21 is formed on two opposite sides 11 of the four sides of the main body part 10 and the second support part 25 is formed on the other two sides 15 of the main body part 10.

A gap 29 is formed between the both ends 23 of the first support portion 21 and the second support portion 25 at a predetermined interval. The gap 29 may be formed by joining the first and second support portions 21 and 25 with the coupling member 115 or by welding after the reinforcing bar 110 for connecting and reinforcing a plurality of grating components is inserted. Spacing.

A plurality of drain holes (17) may be formed in the main body (10). The drain port 17 is provided with an inclined portion 18 formed to face downward and a drain port 130, 140 or 150 covering the drain port 17 may be provided in the drain port 17.

The inclined portion 18 is formed such that the diameter of the lower end of the inclined portion 18 is lower than the upper end of the drain hole 17.

In the drain plug 140, 150, 140, 150, the plug 130 may be made by pouring water permeable concrete into the drain hole 17. In this case, since the inclined portion 18 serves as a mold for the permeable concrete, the stopper 130 is integrally coupled to the inclined portion 18, and the diameter of the lower end of the stopper 18 is lower than the upper end of the drain hole 17, .

The gratings 100, 200, and 300 according to the present invention include a plurality of the grating components 30 coupled to each other in the horizontal direction.

The method of manufacturing a grating according to another aspect of the present invention includes the steps of: (a) bending a rim of a metal plate P vertically to form a rectangular body portion 10; The first support part 21 is formed on two sides 11 of the four sides of the main body part 10 opposite to each other and the second support part 25 is formed on the main body part 10, And forming a gap (29) between the opposite ends (23) of the first support (21) and the second support (25) to form a grating component; (b) inserting the reinforcing bar (110) into the gap (29) after arranging the plurality of grating components so that they are in contact with each other in the horizontal direction, with the first support portions (21) of adjacent grating components being in contact with each other ; And (c) coupling the reinforcing bars 110 and the first and second supporting portions 21 and 25 so that a plurality of grating components are coupled.

(A1) forming a plurality of small holes (16) in the main body (10) by first punching the metal plate (P); And (a2) punching the small holes 16 to form a drain hole 17 having a larger diameter than the small holes 16. [0030]

The secondary punching is performed by pushing a punch having a larger diameter than the small hole 16 into the small hole 16 so that an inclined portion 18 extending downward from the drain hole 17 is formed, The portion 18 serves to increase the load bearing capacity of the grating.

The present invention has the following effects.

1. A plurality of grating components are joined horizontally by a reinforcing bar to form a grating, so that it is possible to easily gratify various widths and shapes.

2. Uniformity of product quality can be secured because it can be manufactured by non-woven method.

3. Since the bearing bar (3) and the cross bar (4) are not required, it is possible to shorten the manufacturing process and the working time, thereby increasing the productivity.

4. It can be made by adjusting the width (W) and length (L) of the grating component, the height (H) of the support part and the thickness of the metal plate appropriately according to the size of the load acting.

5. Effluent can be effectively cut off while discharging rainwater downward well.

6. A grating component provided in the grating as described above.

7. Provide a method of making the grating as above.

1 is a perspective view showing a grating according to the prior art;
2 is an exploded perspective view showing a grating according to a first embodiment of the present invention;
Figure 3 is a perspective view showing the grating component used to make the grating of Figure 2;
Figure 4 is a plan view showing a metal plate used to make the grating component of Figure 3;
FIG. 5A is a plan view showing a drain hole formed in the metal plate of FIG. 4; FIG.
5B is a cross-sectional view taken along the line VV 'in FIG. 5A.
6A is a plan view showing a grating component made by bending the metal plate of FIG. 5A; FIG.
6B is a sectional view taken along line VI-VI 'of FIG. 6A.
Figure 7a is a plan view showing a grating made by combining the grating components of Figure 6a;
FIG. 7B is a sectional view taken along line VII-VII 'of FIG. 7A. FIG.
7C is a front view showing a reinforcing bar provided in the grating of FIG. 7A; FIG.
Figure 8a is a top plan view showing the closure being installed in the grating of Figure 7a;
8B is a sectional view taken along line VIII-VIII 'of FIG. 8A.
9A is a plan view showing a grating according to a second embodiment of the present invention.
Figure 9b is a front view showing the grating of Figure 9a.
10 is a perspective view showing a grating component used to produce the grating of FIG. 9A; FIG.
11A is a plan view showing a grating according to a third embodiment of the present invention.
11B is a front view showing the grating of FIG.
12 is a plan view showing a metal plate used to make a grating component constituting the grating of FIG. 11A; FIG.
Figure 13a is a plan view showing a grating component made of the metal plate of Figure 12;
13B is a sectional view taken along the line XIII-XIII 'of FIG. 13A;
Figure 14a is a top plan view of another drain cap that may be installed in a grating in accordance with the present invention;
Fig. 14B is a right side view showing the drain plug of Fig. 14A. Fig.
FIG. 14C is a cross-sectional view taken along line XIV-XIV 'of FIG. 14A. FIG.
FIG. 15A is a sectional view showing a drain hole stopper of FIG. 14A installed in a drain hole; FIG.
FIG. 15B is a sectional view showing the drain plug of FIG. 15A being opened. FIG.
16A is a plan view showing another drain plug that may be installed in a grating according to the present invention.
FIG. 16B is a cross-sectional view taken along line XVI-XVI 'of FIG. 16A; FIG.
Fig. 17 is a sectional view showing a drain hole stopper of Fig. 16a installed in a drain hole; Fig.
18 is a view showing a mold installed in a grating component to form a drain cap of the drain port of Fig. 16A. Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

First Embodiment

FIG. 2 is an exploded perspective view showing a grating according to a first embodiment of the present invention, and FIG. 3 is a perspective view showing a grating component forming the grating.

Referring to the drawings, the grating 100 includes a plurality of grating components 30 and a reinforcing bar 110 that joins the grating components 30 together. The grating component 30 and the reinforcing bar 110 may be made of steel plate, stainless steel, aluminum alloy, synthetic resin, plastic, FRP, or the like.

The grating component 30 is formed by bending a flat metal plate P while the rim of the metal plate P is vertically bent to form the first and second support portions 21 and 25, (21) (25) becomes a body portion (10).

Specifically, the rim portion of the metal plate P is vertically bent about the dotted line 11 to be the first support portion 21, and the second support portion 25 is bent vertically about the dotted line 15, do. The inner portions of the dotted lines 11 and 15 are the body portion 10.

The first support portion 21 is formed on two opposite sides 11 of the four sides of the main body portion 10 while the second support portion 25 is formed on the other two sides 15 of the main body portion 10 . It is preferable that the first support part 21 is formed on a long side of the body part 10 and the second support part 25 is formed on a short side of the body part 10. This is achieved by placing a plurality of grating components 30 in the horizontal direction and then placing the reinforcing bar 110 on the short side 15 to create a grating 100 having a width S of the long side 11 It is because.

Both ends 23 of the first support portion 21 are bent at a right angle with respect to the dotted line 22 and the opposite ends 23 and the second support portion 25 bent at right angles are opposed to each other, A gap 29 is formed between the end 23 and the second support 25. The gap 29 is formed by inserting the reinforcing bar 110 and then securing the first and second supporting portions 21 and 25 by fastening the fastening member 115 to the fastening holes 24, And the reinforcing bars 110 can be coupled with each other.

The reinforcing bar 110 is a band-shaped rod formed in a longitudinal direction thereof and inserted into the gap 29 to couple two or more grating components 30 to each other. The reinforcing bars 110 preferably have the same length as the length LT of the grating 100 to be produced.

The reinforcing bar 110 serves not only to join the grating components 30 to each other, but also to increase (reinforce) the load bearing capacity of the grating.

A plurality of fastening holes 112 are formed in the reinforcing bar 110. The fastening hole 112 is formed at a position corresponding to the fastening holes 24 and 26. A fastening member 115 such as a rivet or a bolt is provided in the fastening holes 24, 2 supporting portions 21 and 25 and the reinforcing bar 110 can be combined.

The main body 10 is a rectangular flat portion formed on the inner side of the first and second support portions 21 and 25. A plurality of drain holes (17) are formed in the main body (10). Although the circular drain port 17 is shown in the figure, the drain port 17 having various shapes can be formed within a range that can smoothly discharge the storm.

The body 10 receives a load of a pedestrian, a vehicle or the like passing over the grating 100 and transfers the load to the first and second supporting portions 21 and 25. 7A, when the grating components 30 are connected to each other, it is possible to support a large load as the width W and the length S of the main body 10 are small (i.e., The larger the height H of the first and second supporting portions 21 and 25, the larger the load can be supported. It goes without saying that the larger the thickness of the metal plate P, the larger the load can be supported.

The width W, the length S, the height H and the thickness of the metal plate P may be appropriately determined in consideration of the magnitude of the load to which the grating 100 is subjected. The width (W) is preferably 50 mm or more and 1500 mm or less, and the length (S) is preferably 50 mm or more and 1000 mm or less. The height H is 10 mm or more, preferably 30 mm or more and 100 mm or less.

On the other hand, the grating component 30 is made by punching and bending the metal plate P.

4, the metal plate P is made by cutting off four vertex portions of the rectangular plate material and has a plurality of fastening holes 24 and 26 and a small hole 16 .

The small hole 16 is a hole made by punching the metal plate P in a first order, and one or two or more small holes 16 are formed in the main body 10 at predetermined intervals. As shown in Figs. 5A and 5B, the small hole 16 becomes a drain hole 17 by secondary punching.

The secondary punching is performed by pushing a punch having a larger diameter than the small hole 16 into the small hole 16 so that an inclined portion 18 extending downward from the drain hole 17 is formed, The portion 18 serves to increase the load bearing capacity of the grating.

The inclined portion 18 is formed as a downward sloping face downward so that the diameter of the lower end of the lower end of the drain hole 17 becomes smaller and the drain hole stopper (130 of FIGS. 8A and 8B) (Missing) is prevented.

When the secondary punching is completed, the rim of the metal plate P is bent at right angles to form the first and second supporting portions 21 and 25. On the other hand, the order of the first and second punching and the bending may be changed. For example, after the first and second supporting portions 21 and 25 are formed by bending, first and second punching may be performed. After the first punching, the first and second supporting portions 21 and 25 are formed by bending, Secondary punching may be performed.

The grating component 30 thus manufactured is subjected to plating or powder coating, and then bonded to each other. Of course, a plurality of grating components 30 may be combined with each other and then a plating or powder coating may be performed.

FIG. 7A is a plan view showing a grating formed by joining a plurality of grating components 30 in a horizontal direction, FIG. 7B is a sectional view taken along line VII-VII 'of FIG. 7A, and FIG. 7C is a front view showing a reinforcing bar.

As shown in the drawing, after the first supporting portions 21 of the neighboring grating components 30 are brought into contact with each other, when the reinforcing bar 110 is inserted into the gap 29 and fastened by the fastening member 115 The first and second supporting portions 21 and 25 and the reinforcing bar 110 are combined to complete the grating 100. In the drawing, a rivet is used as the fastening member 115, but a bolt or the like may be used.

As such, since the grating 100 can be made only of bending and fastening members 115 (rivets or bolts), there is an advantage that welding is not required and thus the quality of the product is uniform and highly reliable. As described in the Background of the Invention, since the quality of the product depends on the skill of the operator, the existing grating 1 has a problem that the quality deviation is large.

Of course, welding may also be used in place of or in conjunction with the fastening member 115 to join the grating components 30 together. The second and third embodiments described below disclose a configuration in which the first and second supporting portions 21 and 25 are joined to the reinforcing bar 110 by welding instead of the fastening member.

In addition, since the support portions 21 and 25 support the load, the grating 100 does not require the bearing bar 3 and the cross bar 4 of the existing grating 1. The grating 100 according to the present invention has a drawback that the bearing bar 3 and the cross bar 4 can be easily assembled with each other. It is possible to reduce the product cost and the manufacturing time.

On the other hand, the drain hole 17 may be provided with a drain hole stopper 130. Fig. 8A is a plan view showing a grating in which the drain plug 130 is installed in the drain hole 17, and Fig. 8B is a sectional view taken along the line VIII-VIII 'in Fig. 8A.

The drain cap (130) has a side surface fitting with the inclined portion (18). The upper surface of the drain cap 130 protrudes slightly above the upper surface of the main body 110 for the purpose of slip prevention and acupressure.

The drain cap 130 may be made of rubber, synthetic resin, or the like. However, it is preferable that the drain cap (130) is capable of discharging water such as storm water well down, but not the odor of the lower side. For this purpose, the drain cap 130 may be made of a permeable concrete. As is known, the permeable concrete can drain water downward due to the large number of internal voids. In addition, a glittering pigment or a color pigment may be added to the permeable concrete. A drain cap 130 made of a permeable concrete with a glitter pigment added thereto allows the grating 100 to be identified at night.

The drain cap 130 may be formed in the drain port 17 after being separately manufactured in the factory, but it may be made by placing the permeable concrete in a space formed by the sloped portion 18. That is, when the permeable concrete is laid in a state in which a flat plate (not shown in the figure) is in close contact with the lower end of the inclined portion 18, the inclined portion 18 serves as a mold, and the drain cap 130 is integrally formed with the inclined portion 18 As shown in FIG.

The permeable concrete may be poured before the plating or powder coating is performed after the grating component 30 is manufactured. Alternatively, the grating component 30 may be formed, and after plating or powder coating, a film (not shown in the drawings) ) May be attached.

Second Embodiment

FIG. 9A is a plan view showing a grating according to a second embodiment of the present invention, FIG. 9B is a front view showing the grating, and FIG. 10 is a perspective view showing a grating component used for manufacturing the grating. 9A to 10, the same reference numerals as in Figs. 1 to 8B denote the same elements.

The grating 200 differs from the grating 100 described above in that the first support portion 21 is joined to the second support portion 25 and the reinforcement bar 110 by welding and the remaining construction is the same. Therefore, the first and second support portions 21 and 25 do not require the fastening holes 24 and 26, and the reinforcing bar 110 does not require the fastening holes 112.

In the drawing, a red circle (o) represents a portion where welding is performed. As shown in the figure, the welding is carried out in such a way that the first and second support portions 21 and 25 and the portion for joining the reinforcement bar 110, the first support portion 21 of the neighboring grating component 30, .

Third Embodiment

FIG. 11A is a plan view showing a grating according to a third embodiment of the present invention, and FIG. 11B is a front view showing the grating. 11A and 11B, the same reference numerals as those in Figs. 1 to 10 denote the same elements.

The grating 300 differs from the grating 200 in the structure of the first support portion 21, and the remaining structure is the same as that of the grating 200.

The grating component 30 is made of a metal plate. As shown in Fig. 12, the metal plate P is cut off (removed) from the vertex portion of the rectangular plate material. The rim of the metal plate P is bent at right angles along the dashed line 11 to become the first support portion 21 and bent at a right angle along the dashed line 15 to become the second support portion 25. [ Therefore, the first support portion 21 is formed on the opposite sides of the four sides of the main body portion 10, and the second support portion 25 is formed on the other two sides.

A gap 29 is formed between both ends 23 of the first support portion 21 and the second support portion 25. A reinforcing bar (110) is inserted into the gap (29). The reinforcing bar 110 inserted in the gap 29 is welded to the first and second supporting portions 21 and 25. In the drawing, a red circle (o) represents a portion where welding is performed. Since the first support part 21, the second support part 25 and the reinforcing bar 110 are welded together, the first and second support parts 21 and 25 are provided with the fastening holes 24 and 26, The reinforcing bar 110 is not required to have the fastening hole 112.

Variation of the drain plug

FIG. 14A is a plan view showing another drain stopper which can be installed in the grating according to the present invention, FIG. 14B is a right side view showing the drain stopper, and FIG. 14C is a sectional view taken along line XIV-XIV 'of FIG.

The drain plug 140 allows the storm drains downward while at the same time preventing the odor from rising upwards.

As shown in the drawing, the drain plug 140 includes a body portion, a lid 145 capable of rotating with respect to the body portion, and a body portion 145 and a lid portion 145 so as to allow rotation of the lid portion 145 And a connecting portion 147 for providing elastic restoring force for returning the cover portion 145 to the home position.

The drain cap 140 is preferably integrally formed of rubber, soft plastic, urethane, silicone, or the like. A glitter pigment may be added to the material. The drain plug 140 to which the luminous pigment is added makes it possible to identify the grating at night.

The body portion has a top surface 141 and a side surface 143 extending downward from the top surface 141.

A through hole 141a is formed in the upper surface 141 so that the rain can move downward.

The side surface 143 includes a first portion 143a formed to cooperate with the inclined portion 18 and a second portion 143b formed vertically below the first portion 143a.

The first portion 143a is formed at the same inclination as the inclined portion 18 so that the drain cap 140 can be stably installed on the inclined portion 18. [

A through hole 144 is formed in the second portion 143b. The through hole 144 is an opening that penetrates through the side surface 143 in the horizontal direction, and the through hole 144 can discharge the excellent light to the outside.

A jaw 143c is formed between the first and second portions 143a and 143b. The jaw 143c is installed to be hooked on the lower end of the inclined portion 18, thereby preventing the drain plug 140 from deviating upward.

The cover portion 145 normally closes the drain port 17 (Fig. 15A). When a load (not shown in the figure) is applied to the upper portion thereof, the cover portion 145 is rotated downward to open the drain port 17 (Fig. 15B) . Then, when the load of the storm is removed, it is restored to its original position by the elastic restoring force of the connecting portion 147 to block the drain hole 17 (Fig. 15A).

A space is formed between the lid 145 and the upper surface 141. The water introduced into the space through the through hole 141a is discharged laterally through the through hole 144. However, When the weight of the water contained in the space exceeds a predetermined value, the lid 145 is rotated downward to discharge the water downward. With this configuration, water can be discharged well while preventing the odor from rising because the cover 145 is closed when the air is normal and the amount of rainfall is small, and when the amount of rainfall is large, So that water can be discharged.

16A is a plan view showing another drain cap that can be installed in the grating according to the present invention, and FIG. 16B is a cross-sectional view taken along line XVI-XVI 'of FIG. 16A. 17 shows a structure in which the drain plug is installed in a drain hole.

The drain cap 150 includes a first portion 153, a second portion 155, and a through hole 152 passing through the cap.

The outer peripheral surface of the first portion 153 is formed to cooperate with the inclined portion 18. The second portion 155 is a portion extending downward from the first portion 153. A jaw 156 is formed between the first and second portions 153 and 155. The jaw 156 is provided to be hooked on the lower end of the inclined portion 18 to prevent the stopper 150 from being detached.

The drain stopper 150 may be separately prepared in advance and then inserted into the drain hole 17, but it may be formed by placing a predetermined mixture in the drain hole 17. When a rod for forming the through hole 152 is installed in the drain hole 17 and a compound is placed, the through hole 152 can be formed. Figure 18 shows that the mold is installed in the grating component to form a drain cap in the drain. The mold 50 (hatched portion) is provided under the inclined portion 18 and includes a rod portion 52 for forming the through hole 152. [

The upper surface of the drain cap 150 may have the same height as the upper surface of the grating or protrude slightly upward. The convexly protruding configuration can prevent the pedestrian from slipping.

On the other hand, the combination includes gravel, a binder and a mixture of predetermined components, each having a diameter of 10 mm or less. As the binder, any one selected from the group consisting of cement, concrete, asphalt, permeable concrete, adhesive resin, etc., or a combination of two or more selected from the above group may be used.

The mixture may be composed of any one selected from the group consisting of rubber chips of 10 mm or less, urethane chips, plastic chips, and steelmaking slag, or a combination of two or more kinds selected from the above-mentioned group. In addition, a glitter pigment or a color pigment may be added to the formulation.

The placement of the formulation may be accomplished prior to plating or powder coating after the grating component 30 has been fabricated, or after the grating component 30 has been fabricated and plated or powder coated, a film (not shown) May be carried out after attaching the adhesive.

1, 100, 200, 300: grating 10:
17: drain hole 18: inclined portion
21: first support portion 25: second support portion
24, 26, 112: fastening holes
29: A gap between the first supporting portion and the second supporting portion
30: Grating component 50: Mold
110: reinforcing bar 115: fastening member
130, 140, 150: Drain plug
P: metal plate

Claims (13)

The first and second supporting portions 21 and 25 are formed by vertically bending the rim of the flat metal plate P and the main body portion 10 formed inside the first and second supporting portions 21 and 25 Including,
The first support portion 21 is formed on two sides 11 of the four sides of the main body portion 10 facing each other and the second support portion 25 is formed on the main body portion 10, On the other two sides (15)
A gap 29 having a predetermined gap is formed between both ends 23 of the first support portion 21 and the second support portion 25,
The gap 29 may be formed by joining the first and second support portions 21 and 25 with the coupling member 115 or by welding after the reinforcing bar 110 for connecting and reinforcing a plurality of grating components is inserted. Spacing,
A plurality of drain holes (17) are formed in the main body (10)
A bearing bar 3 for supporting loads applied to the main body 10 by the first and second supporting portions 21 and 25 and the reinforcing bar 110, Characterized in that it does not comprise a crossbar (4) for maintaining the spacing. The method according to claim 1,
The drain hole 17 is provided with an inclined portion 18 formed to face downward and the inclined portion 18 is provided with a stopper 130, 140 or 150 for covering the drain hole 17 Grating components. A plurality of grating components 30 are coupled to each other in a horizontal direction,
The grating component (30)
The first and second supporting portions 21 and 25 are formed by vertically bending the rim of the flat metal plate P and the main body portion 10 formed inside the first and second supporting portions 21 and 25 Including,
The first support portion 21 is formed on two sides 11 of the four sides of the main body portion 10 facing each other and the second support portion 25 is formed on the main body portion 10, On the other two sides (15)
A gap 29 having a predetermined gap is formed between both ends 23 of the first support portion 21 and the second support portion 25,
The reinforcing bar 110 and the first and second supporting portions 21 and 25 are installed in the gap 29 by inserting a reinforcing bar 110 for joining and reinforcing a plurality of grating components 30 to each other. (115) or welded,
A plurality of drain holes (17) are formed in the main body (10)
A bearing bar 3 for supporting loads applied to the main body 10 by the first and second supporting portions 21 and 25 and the reinforcing bar 110 and supporting the load, And a crossbar (4) for maintaining an interval. The method of claim 3,
The length of the first support portion 21 or the length L1 of the side 11 is longer than the length of the second support portion 25 or the length L2 of the side 15. 5. The method of claim 4,
The drain port 17 is provided with an inclined portion 18 formed to face downward and the drain port 17 can be provided with a cap 130, 140 or 150 covering the drain port 17. [ . 6. The method of claim 5,
The inclined portion 18 is formed so that the diameter of the lower end of the drain hole 17 is smaller than the upper end of the drain hole 17,
The cap 130 is formed by pouring the permeable concrete into the drain port 17. The slope part 18 serves as a mold for the permeable concrete so that the cap 130 and the slope part 18 are integrally joined and the drain port 17 Is prevented from falling down due to the small diameter of the lower end of the cap 130. [ 6. The method of claim 5,
The inclined portion 18 is formed so that the diameter of the lower end of the drain hole 17 is smaller than the upper end of the drain hole 17,
The stopper (150)
A first portion 153 which mates with the inclined portion 18;
A second portion 155 formed to extend downwardly from the first portion 153;
A jaw 156 formed between the first portion 153 and the second portion 155; And
And a through hole (152) formed to penetrate the plug (150) for good discharge,
The jaw 156 is provided to be hooked on the lower end of the inclined portion 18 to prevent the stopper 150 from being released,
The stopper 150 is formed by placing a predetermined combination in the drain hole 17,
Preferably,
Gravels less than 10 mm in diameter;
A binder made of any one selected from the group consisting of cement, concrete, asphalt, permeable concrete and adhesive resin, or a combination of two or more selected from the group; And
A rubber chip having a thickness of 10 mm or less, a urethane chip, a plastic chip, and a steelmaking slag, or a mixture of two or more selected from the group,
And a through hole (152) is formed in the cap (150) by placing the compound in the drain hole (17) in a state where a rod is placed on the drain hole (17). 8. The method according to claim 6 or 7,
The caps 130, 140 and 150 include a glitter pigment or a color pigment,
Wherein the stoppers 130, 140 and 150 are formed to protrude slightly upward from the upper surface of the grating. 6. The method of claim 5,
The drain plug (140)
A body portion having an upper surface 141 and a side surface 143 formed to extend downward from the upper surface 141 and inserted into the drain hole 17;
A cover 145 which is rotatable with respect to the body portion; And
The body part and the lid part 145 are connected to each other so that the lid part 145 can be pivoted and formed integrally with the body part and the lid part 145 to provide an elastic restoring force for returning the lid part 145 to the home position. And a connection part
A through hole 141a is formed in the upper surface 141,
The side surface 143,
A first portion 143a which mates with the inclined portion 18; And
And a second portion 143b extending downwardly from the first portion 143a,
The second portion 143b is formed with a through hole 144 passing through the side surface 143 in the lateral direction and a jaw 143c is formed between the first and second portions 143a and 143b and a jaw 143c Is provided to be hooked on the lower end of the inclined portion 18 to prevent the stopper 140 from being deviated upward,
The lid part 145 is rotated downward by the load of the upper storm to open the drain port 17, and when the storm is removed, the lid 145 is returned to the original position by the elastic restoring force. (a) bending the rim of the metal plate P vertically to form a rectangular body 10 and first and second support portions 21 and 25 vertically installed around the body 10, The first support part 21 is formed on two opposite sides 11 of the four sides of the main body part 10 and the second support part 25 is formed on the remaining two sides 15 of the main body part 10, Making a gap (29) between both ends (23) of the first support (21) and the second support (25) to produce a grating component;
(b) inserting the reinforcing bar (110) into the gap (29) after arranging the plurality of grating components so that they are in contact with each other in the horizontal direction, with the first support portions (21) of adjacent grating components being in contact with each other ; And
(c) combining the reinforcing bar (110) and the first and second supporting portions (21, 25) so as to couple a plurality of grating components. 11. The method of claim 10,
(a1) forming a plurality of small holes (16) in the main body (10) by first punching the metal plate (P); And
(a2) Secondly punching the small hole (16) to form a drain hole (17) having a diameter larger than the small hole (16)
The secondary punching is performed by pushing a punch having a larger diameter than the small hole 16 into the small hole 16 so that an inclined portion 18 extending downward from the drain hole 17 is formed, (18) increases the load bearing capacity of the grating. 12. The method of claim 11,
The inclined portion 18 is formed so that the diameter of the lower end of the drain hole 17 is smaller than the upper end of the drain hole 17,
A plug 130 is installed in the drain hole 17,
The cap 130 is formed by pouring the permeable concrete into the drain hole 17 and the slope portion 18 serves as a mold for the permeable concrete so that the cap 130 and the slope portion 18 are integrally joined, And the lower end of the stopper 130 is prevented from falling downward. 12. The method of claim 11,
The inclined portion 18 is formed so that the diameter of the lower end of the drain hole 17 is smaller than the upper end of the drain hole 17,
The stopper 150 is formed by placing a predetermined combination in the drain hole 17,
Preferably,
Gravels less than 10 mm in diameter;
A binder made of any one selected from the group consisting of cement, concrete, asphalt, permeable concrete and adhesive resin, or a combination of two or more selected from the group; And
A rubber chip having a thickness of 10 mm or less, a urethane chip, a plastic chip, and a steelmaking slag, or a mixture of two or more selected from the above group,
And a through hole (152) is formed in the plug (150) by placing the compound in the drain hole (17) in a state where a rod is placed on the drain hole (17).

Images