Grating Manufacturing and Method Grating

Abstract

The present invention relates to a method for manufacturing a grating and a grating. More specifically, the grating has a screen inside a grating body formed of a plurality of connecting passages, and gaskets are connected to the outer front and back surfaces to provide functions for blocking foreign substances and reducing noise. The above grating is characterized by combining an extrusion method and a laser processing method, which simplifies the processing process and enables production in various lengths.

Description

Technology Field

[0001] The present invention relates to a grating having foreign substance blocking and noise reduction functions, and more specifically, to a grating that is installed in a drain, has drainage holes formed on the upper and lower surfaces to allow for internal penetration, has multiple connecting passages integrally formed on both left and right ends to allow for penetration with the drainage holes, and has a structure in which gaskets are respectively connected along the longitudinal direction on the upper and lower surfaces of the front and back surfaces, and the grating is manufactured in various lengths by combining an extrusion method and a laser processing method, and is characterized by not generating noise during vehicle and pedestrian passage due to the gaskets, and by having a screen inserted inside the connecting passages to filter out foreign substances so that rainwater can be drained smoothly. Background Technology

[0003] Generally, a drain hole grating is a cover structure for a drain designed to divert rainwater flowing on the road surface, such as a roadway or pedestrian walkway, into an outdoor drainage channel during rain.

[0004] These gratings are generally made of grid-shaped metal or cast iron, and are also referred to as steel gratings.

[0005] However, conventional gratings had very wide gaps between their grid-shaped structures, so they could not properly filter out foreign substances such as cigarette butts and fallen leaves that flowed in with rainwater or were thrown by passersby.

[0006] As such, foreign substances not properly filtered by conventional gratings accumulate inside the drainage pipes connected to the drains; consequently, if the pipes become clogged, rainwater and sewage backflow during the rainy season, causing flooding problems.

[0007] In addition, there was a problem where sewage accumulated inside the drainage pipes due to blockage would rot over time, causing a severe stench and allowing pests to inhabit the area.

[0008] Meanwhile, in a conventional method for manufacturing a grating with a grid structure, a plurality of vertical pieces, each having grooves formed at regular intervals along the length direction, are arranged at regular intervals and welded to a rectangular grating body, and horizontal pieces are installed across the plurality of vertical pieces along the grooves formed in the vertical pieces.

[0009] The horizontal piece is fixed to the grooves of the grating body and the vertical piece by welding.

[0010] However, this type of lattice structure grating has the problem of a complex manufacturing process because the grating body, horizontal and vertical pieces must be manufactured separately and then combined.

[0011] In addition, since the horizontal and vertical pieces are fixed to the grating body at the points where they contact and intersect by welding, the increased welding process leads to higher labor costs and increased manufacturing time, which is a serious cause of raising manufacturing costs.

[0012] In addition, conventional gratings have the disadvantage of poor workability and efficiency and a high possibility of defects because they are fixed by welding each of the horizontal and vertical pieces that are orthogonal to one another, as well as an unattractive appearance. Furthermore, they have the problem of poor productivity and being unfriendly to the environment due to the post-processing applied after the welding work.

[0013] Since these gratings are placed on the side of vehicle or pedestrian walkways, they bear a heavy load, which causes the center to bend downwards, resulting in the inconvenience of noise.

[0014] In addition, because deformation causing downward bending occurs while welding the internal members of the grating during the welding process, the grating placed in the drain forms a noise space; consequently, when a load is applied to the grating, noise is generated as the sides collide.

[0015] To overcome these disadvantages, various means are being actively devised to improve rigidity to prevent bending and to secure noise spaces to prevent noise generated during side collisions, and methods to solve these problems are required.

[0016] Taking these problems into account, there are cases where a method of simply manufacturing gratings using press processing is used, but the above grating has weak load-bearing capacity, so it cannot be used in drainage areas such as roads where vehicles pass or heavy loads are applied, and is used extremely restrictively in places where there is no vehicle traffic.

[0017] Therefore, there is a growing demand for gratings that can overcome the problems of conventional grating manufacturing methods, have a simple manufacturing process, and withstand heavy loads. Prior art literature

[0018] Republic of Korea Patent Application No. 10-2013-0025545 "Grating" Republic of Korea Patent Application No. 10-2022-0170644 "Grating for Drainage Installation" The problem to be solved

[0019] The grating of the present invention, designed to solve the aforementioned problems, aims to increase productivity by shortening the manufacturing process through an extrusion process, prevent foreign substances from hitting drainage holes and drainage pipes, and prevent noise generation during vehicle and pedestrian traffic. means of solving the problem

[0021] As a means of solving the above problem, in the method for manufacturing a grating according to the present invention,

[0022] A step of forming a grating body by an extrusion method such that a plurality of coupling passages are arranged in a row, each having a detachable part located at the top and bottom respectively, with seating steps formed facing each other on both the left and right sides inside along the longitudinal direction, and a coupling part having a coupling groove formed along the longitudinal direction is integrally formed on the upper and lower outer surfaces of the coupling passages located at the front and rear ends; and

[0023] A step of cutting the above grating body to a desired length; and

[0024] A step of repeatedly forming drainage holes by cutting a portion of the upper and lower surfaces with a laser processing machine along the longitudinal direction of the grating body to form a coupling passage and a through hole, and forming drainage holes so that the adjacent coupling passages are connected by a connecting piece; and

[0025] A step of attaching a gasket to the above joint; and

[0026] The present invention provides a method for manufacturing a grating characterized by the step of inserting a mesh-shaped screen in the longitudinal direction into a detachable portion formed inside the aforementioned coupling passage. Effects of the invention

[0028] As explained above, the grating manufacturing method and the grating of the present invention have the effect of increasing productivity by shortening the manufacturing process by combining a method of forming a grating body by an extrusion method, cutting it to a desired length, and then forming multiple drainage holes on the upper and lower surfaces of the grating body using a laser processing machine.

[0029] The above grating has the effect of preventing the drain pipe from becoming clogged by inserting a screen into a detachable part formed in a coupling passage formed inside the grating body to filter out foreign substances falling through the drain hole, allowing rainwater and sewage to be drained smoothly through the drain pipe, and allowing the filtered foreign substances to be easily separated from the grating body and disposed of.

[0030] The grating of the present invention can improve drainage efficiency without compromising the aesthetics of the road by blocking foreign substances from entering the drain and the inside of the drain pipe.

[0031] The present invention has the effect of preventing noise from occurring when vehicles or pedestrians pass by after installing a grating in a drain, wherein a gasket is attached to the grating body at all or at regular intervals along the longitudinal direction.

[0032] The grating of the present invention uses aluminum material, which allows for easy molding by an extrusion method. Since multiple connecting passages arranged in a row are integrally formed in close contact, it is robust, has excellent durability, and is lightweight, making transportation and installation easy. Brief explanation of the drawing

[0034] FIG. 1 is a flowchart illustrating the method for manufacturing a grating according to the present invention. FIG. 2 is a perspective view showing the grating of the present invention separated. FIG. 3 is a perspective view showing the combined grating of the present invention. FIG. 4 is a plan view illustrating the grating of the present invention. FIG. 5 is a perspective view showing a screen combined with the grating of the present invention. FIG. 6 is a cross-sectional view illustrating the grating of the present invention. FIG. 7 is a cross-sectional view showing the grating of the present invention in use. Specific details for implementing the invention

[0035] In order to achieve the above objectives and effects, the present invention will be described in detail below with reference to the attached drawings.

[0036] FIG. 1 is a flowchart illustrating the method for manufacturing a grating according to the present invention.

[0037] The grating (1) of the present invention is installed in a drain (10) such as a sewer pipe, drainage pipe, or pipeline to prevent damage and breakage when a vehicle with a heavy load passes through, and blocks noise generation to provide noise-free operation.

[0038] The present invention is configured to shorten the manufacturing process by using an aluminum material and forming it by an extrusion method, and by cutting it to a desired length according to the installation location, so that the length of the grating (1) can be changed according to the environment of the installation location.

[0039] The grating (1) of the present invention is composed of a grating body (11), a screen (3) for filtering out foreign substances, and a gasket (2) for absorbing and cushioning shock.

[0040] The grating (1) manufactured by the above extrusion method is formed such that a plurality of connecting passages (7) formed in a tubular shape are arranged in a row and are closely attached, and within the connecting passages (7), a detachable part (8) is formed in the longitudinal direction such that a seating step (12) is formed facing each other on both the left and right sides, and a connecting groove (6) is integrally formed along the longitudinal direction on the upper and lower outer surface of the connecting passages (7) located on the front and rear sides of the connecting passages (7). The grating body (11) is formed by the extrusion method.

[0041] That is, the grating body (11) shortens the manufacturing process by integrally molding the coupling passage and the detachable part by an extrusion method.

[0042] In order to prevent the durability of the above grating body (11) from weakening due to the use of aluminum material, a plurality of connecting passages (7) are arranged in a row and maintained in a close state, thereby dispersing the load applied from above and improving durability.

[0043] The step of cutting the above grating body (11) to a desired length suitable for the installation location is performed.

[0044] The above grating body (11) is configured to be manufactured in various lengths by cutting it to a desired length according to the installation location, thereby shortening the manufacturing process, and the length of the grating (1) can be changed according to the installation location.

[0045] A plurality of drainage holes (5) are formed by partially cutting the upper and lower surfaces with a laser processing machine along the longitudinal direction of the grating body (11) to form a connection passage (7) and the connection passage (7) is connected by a connecting piece (4).

[0046] As described above, when the upper and lower surfaces of the grating body (11) are laser-cut to form a drainage hole (5), the connecting piece (4) located between the drainage hole (5) and the connecting piece (4) located between the connecting passage (7) connects the drainage hole (5) and the connecting passage (7).

[0047] Even if the above grating body (1) has multiple drainage holes (5) formed on the upper and lower surfaces, the vertical partition wall constituting the coupling passage (7) supports the upper and lower surfaces in the vertical direction without any cut parts, thereby having the effect of supporting and dispersing the load transmitted from the upper side.

[0048] Therefore, the load of the grating (1) is light, making it easy to transport and install, and it has the advantage of not having lower durability compared to conventional gratings (1).

[0049] The drainage holes (5) formed on the upper and lower surfaces of the above-mentioned connecting passage (7) and the grating body (11) are maintained in a state of being open in the upper and lower directions to guide the inflow of sewage and wastewater to be drained smoothly.

[0050] It is preferable that the drainage hole (5) formed in the above-mentioned coupling passage (7) be formed in an alternating manner so as to be located at a different position from the closely connected coupling passage (7).

[0051] The reason for forming the positions of the drain holes (5) in an staggered manner is to disperse the pressure applied from the upper part of the grating (1) and to allow foreign substances to be caught in the drain holes (5) first.

[0052] After forming a drain hole (5) in the above grating body (11), a gasket (2) is attached along the longitudinal direction of the coupling groove (6).

[0053] The above gasket (2) is located at the upper and lower parts of the grating body (11), and the gasket (2) located at the upper part is formed in a straight shape and has a connecting projection integrally formed on one side. When the connecting projection is inserted into the connecting groove (6) and positioned on the side, it prevents direct contact between the inner surface of the drain (10) and the grating body (11).

[0054] The gasket (2) located at the bottom of the grating body (11) is shaped like an "L" and wraps around the corners, and has a connecting projection formed on one side so that the connecting projection (9) is inserted into the connecting groove (6) to prevent the bottom surface and the side surface from coming into contact with the inner surface of the drain (10).

[0055] The above-mentioned coupling passage (7) is completed by inserting a mesh-shaped screen (3) in the longitudinal direction into a detachable part (8) formed inside the coupling passage (7).

[0056] The above detachable part (8) is formed such that the seating steps (12) face each other on the upper and lower left and right sides inside the coupling passage (7).

[0057] The above detachable part (8) can be installed by selecting only one of the upper and lower detachable parts (8) formed at the upper and lower parts of the coupling passage (7) to insert a screen (3), or by inserting a screen (3) with a different mesh hole size.

[0058] As described above, in the detachable parts (8) formed at the upper and lower parts of the combined passage (7), if the mesh hole size of the screen (3) is different, the filtering position changes according to the volume of foreign matter, thereby facilitating the inflow and drainage of rainwater and sewage.

[0059] FIG. 2 is a perspective view showing the grating of the present invention separated, FIG. 3 is a perspective view showing the grating of the present invention combined, FIG. 4 is a plan view showing the grating of the present invention, FIG. 5 is a perspective view showing a screen combined with the grating of the present invention, FIG. 6 is a cross-sectional view showing the grating of the present invention, and FIG. 7 is a cross-sectional view showing the grating of the present invention in a state of use.

[0060] The grating body of the grating of the present invention is formed by an extrusion method, and

[0061] The configuration comprises a plurality of coupling passages (7) formed in a tubular shape and closely arranged in a row, a plurality of drainage holes (5) formed at regular intervals to be open with the coupling passages (7) by cutting a portion of the upper and lower surfaces of the coupling passages (7), a detachable part (8) formed to insert a screen (3) at the upper and lower portions along the longitudinal direction inside the coupling passages (7), and a coupling groove (6) integrally formed along the longitudinal direction on the upper and lower portions of the outer surface of the coupling passages (7) located on the front and rear sides among the coupling passages (7) arranged in a row.

[0062] The grating body (11) of the present invention can be formed by extruding aluminum and then cutting it to fit the installation location, allowing it to be formed into various lengths and desired sizes, thereby shortening the manufacturing process and reducing production costs, and thus increasing production efficiency.

[0063] The mesh-shaped screen (3) inserted into the above-mentioned detachable part (8) filters out foreign substances entering through the drainage hole.

[0064] A gasket (2) is fitted into a coupling groove (6) located at the upper and lower outer surface of the coupling passage (7) in the grating body (11), and the gasket covers the upper side and lower corner of the grating body to prevent the side and bottom surfaces from coming into direct contact with the inner surface of the drain, and absorbs and cushions the impact generated during vehicle passage to provide silent operation.

[0065] The above grating body (11) is formed of aluminum material, and the positions of the drainage holes (5) formed in the closely connected passage (7) are formed staggered.

[0066] The above detachable part (8) is formed such that the seating steps (12) face each other on the upper and lower left and right sides inside the coupling passage (7).

[0067] Among the detachable parts (8) formed at the upper and lower parts of the above-mentioned coupling passage (7), a screen (3) is inserted by selecting only one of the upper or lower parts, or a screen (3) with a different mesh hole size is inserted and installed.

[0068] A screen is installed by inserting it into the upper detachable part located inside the above coupling passage, and a screen smaller in size than the mesh holes of the upper screen is installed in the lower detachable part.

[0069] The upper screen then filters out cigarette butts, fallen leaves, and various types of trash among the thrown foreign matter, and further filters out small stone particles, sand, and other debris that pass through the upper screen, preventing them from passing through the drain and accumulating in the drainage channel.

[0070] FIG. 6 is a cross-sectional view showing the grating of the present invention in use.

[0071] The grating of the present invention provides a noise-free grating by absorbing and cushioning noise generated by impact during vehicle and pedestrian traffic. When installed in a drain connected to a sewer or waterway that discharges rainwater, sewage, etc., gaskets are respectively attached to the front, rear, upper, and lower parts of the grating body to prevent direct contact between the drain and the grating body.

[0072] The above grating improves durability by absorbing and dispersing loads and impacts applied from the upper surface through a series of joint passages formed as rectangular tubular bodies using an extrusion process to compensate for the disadvantages of aluminum material, while also preventing slipping, damage, and deterioration by having multiple drainage holes arranged in an alternating pattern on the upper and lower surfaces.

[0073] Therefore, when foreign substances such as tissues, plastic bags, cigarette butts, and fallen leaves enter along with rainwater, the grating of the present invention filters out the foreign substances by the screen, and the rainwater flows smoothly into the drainage channel through the drainage holes formed below via the mesh holes of the screen and is drained.

[0074] Since aggregates are blocked by the support elements and do not flow into the drainage channel due to the screen mentioned above, problems associated with conventional drainage gratings using aggregates are avoided, and odors from the drainage channel are also prevented from flowing back through the drain.

[0075] In cases where heavy rain is expected during the rainy season, the drainage speed of rainwater through the grating is slowed down, which may lead to sudden flooding. Therefore, to ensure smoother drainage through the grating, the grating is separated from the drain, and the screen is separated from the detachable part of the connection channel to easily remove foreign matter. After collecting the debris and reattaching the screen to the detachable part, the grating is then placed back into the drain, thereby preventing flooding damage through smooth drainage. Explanation of the symbols

[0076] 1: Grating 2: Gasket 3: Screen 4: Connection 5: Drain hole 6: Connecting groove 7: Connection passage 8: Detachable part 9: Connecting protrusion 10: Drain hole 11: Grating body 12: Seating step

Claims

Claim 1 A method for manufacturing a grating comprises the steps of: forming a grating body (11) by an extrusion method such that a plurality of connecting passages (7) formed in a tubular shape in aluminum material are formed in close contact in a row, and within the connecting passages (7), a detachable part (8) is formed in the longitudinal direction such that a seating step (12) is formed facing each other on both the left and right sides, and a connecting groove (6) is integrally formed along the longitudinal direction on the upper and lower outer surface of the connecting passages (7) located on the front and rear sides among the connecting passages (7); and cutting the grating body (11) according to the installation location. A step of forming a plurality of drainage holes (5) by partially cutting the upper and lower surfaces with a laser processing machine along the longitudinal direction of the grating body (11) to form a connection passage (7) and forming the drainage holes (5) formed in adjacent connection passages (7) in an staggered manner so that they are located at different positions, and processing the adjacent connection passages (7) with a laser so that they are connected by a connecting piece (4); a step of fitting a straight-shaped gasket (2) with a connection projection (9) formed on one surface into a connection groove (6) located on the upper part of the grating body (11), and fitting an "L"-shaped gasket (2) with a connection projection (9) formed protrudingly on one surface into a connection groove (6) located on the lower part of the grating body (11) while wrapping the lower corner of the grating body (11); A method for manufacturing a grating characterized by the step of inserting a mesh-shaped screen (3) in the longitudinal direction into upper and lower detachable parts (8) formed inside the coupling passage (7), wherein the screen (3) inserted into the lower detachable part (8) is installed using a screen (3) that is smaller in size than the mesh hole of the screen (3) inserted into the upper detachable part (8). Claim 2 A grating body (11) that is extruded from aluminum material and has a plurality of connecting passages (7) formed in a tubular shape and closely arranged in a row, a plurality of drainage holes (5) formed at regular intervals with a portion cut off on the upper and lower surfaces of the connecting passages (7) to be open with the connecting passages (7), a connecting piece (4) located between the drainage holes (5) to connect adjacent connecting passages (7), a detachable part (8) formed on the upper and lower sides respectively so that a seating step (12) faces each other along the longitudinal direction inside the connecting passages (7), and a connecting groove (6) integrally formed along the longitudinal direction on the upper and lower outer surface of the connecting passages (7) located on the front and rear sides among the connecting passages (7) arranged in a row; and a mesh-shaped screen (3) inserted longitudinally into the upper detachable part (8) and the lower detachable part (8) inside the combined passage (7), respectively, to filter out foreign substances flowing in through the drain hole (5); It includes a gasket (2) that absorbs and cushions shock by being coupled to the coupling groove (6) respectively, wherein the position of the drainage hole (5) formed in the adjacent coupling passage (7) of the grating body (11) is formed to be staggered from each other, and the vertical partition wall constituting the coupling passage (7) is formed to support and distribute the load applied from above by supporting the upper and lower surfaces of the grating body (11) in a vertical direction without being cut by the formation of the drainage hole (5), and the gasket (2) includes a straight-shaped upper gasket that is fitted into the upper coupling groove (6) of the grating body (11) with a coupling projection (9) integrally formed on one surface, and an "L"-shaped lower gasket that is fitted into the lower coupling groove (6) while wrapping around the lower corner of the grating body (11) with a coupling projection (9) protruding from one surface, and the screen (3) inserted into the lower detachable part (8) is to the upper detachable part (8). A grating characterized by having mesh holes formed smaller than the inserted screen (3). Claim 3 delete Claim 4 delete Claim 5 delete

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