WO2014007455A1 - Procédé de fabrication de grille - Google Patents

Procédé de fabrication de grille Download PDF

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Publication number
WO2014007455A1
WO2014007455A1 PCT/KR2013/003116 KR2013003116W WO2014007455A1 WO 2014007455 A1 WO2014007455 A1 WO 2014007455A1 KR 2013003116 W KR2013003116 W KR 2013003116W WO 2014007455 A1 WO2014007455 A1 WO 2014007455A1
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WO
WIPO (PCT)
Prior art keywords
grating
hole
pair
plate
side plate
Prior art date
Application number
PCT/KR2013/003116
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English (en)
Korean (ko)
Inventor
권혁명
Original Assignee
Kwon Hyug-Myung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kwon Hyug-Myung filed Critical Kwon Hyug-Myung
Publication of WO2014007455A1 publication Critical patent/WO2014007455A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06—Gully gratings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/10—Steel gratings ; Gratings made of material other than steel

Definitions

  • the present invention relates to a gasket for grating and grating for drain pipe cover, and more particularly, to a gutter can be formed by a burring process, and to a grating and grating manufacturing method capable of withstanding high loads.
  • drainage pipes are installed in roads, parking lots, buildings, factories, etc.
  • gratings are installed at drains on one side of the drainage pipe.
  • the grating is used as a drain cover to allow rainwater, sewage and sewage to flow smoothly into the drain pipe while keeping pedestrians and cars from falling into the drain pipe.
  • the grating is preferably made of a material and a structure excellent in strength so as to withstand even a high load such as a vehicle.
  • FIG. 1 is a perspective view of a grating according to the prior art.
  • a plurality of bearing bars 11 are arranged and welded in a frame consisting of a pair of first plates 13 and a pair of second plates 14.
  • the plurality of bearing bars 11 form a plate shape having a constant thickness as a whole.
  • a plurality of crossbars 12 are arranged to be orthogonal to the bearing bar 11 and welded so that torsion due to the load from the top is suppressed.
  • the crossbar 12 has a shape in which a rectangular rod is twisted by torsion, is inserted into a fastening groove formed in the upper surface of the bearing bar 11, and both ends are welded to the pair of second plates 14. .
  • the contact portions of the bearing bar 11 and the crossbar 12 are welded so that the crossbar 12 does not flow with respect to the bearing bar 11.
  • a plurality of bearing bars 11 and crossbars 12 are arranged in a lattice shape and welded to the first plate 13 and the second plate 14 so that the grating 100 can support pedestrians and automobiles, while rainwater is used. The back may be introduced into the drain pipe through the grating 100.
  • the conventional grating has a disadvantage that the durability is weak because the strength to withstand a large load is reduced by welding a plurality of bearing bars and cross bars.
  • 2 shows a conventional grating whose shape is deformed by high load. As shown in FIG. 2, the conventional grating is warped or sag when high loads are applied. Deformation in the grating is not only aesthetically ill, it can also interfere with pedestrians and cars.
  • the conventional grating a series of manufacturing the first plate 13, the second plate 14, the bearing bar 11, and the crossbar 12 separately and then welding and fixing them in a state in which they are arranged in a predetermined baton. Because of the need for the process, the manufacturing process is complicated and the production time is long, there is a problem that the productivity is lowered. In particular, the conventional grating is difficult to automate production because the welding process by manpower is essential during manufacturing, there is a problem in that the cost of the product due to the labor cost input.
  • the present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a method of manufacturing grating and grating that does not deform even under high loads without degrading drainage capacity.
  • a plurality of repair holes are formed to penetrate from the upper surface to the lower surface, the repair hole is provided with a flange which is bent downward to extend; A pair of first side plates bent downward from both end portions in the width direction of the upper plate to extend; A pair of second side plates bent downward from both end portions in the longitudinal direction of the upper plate; And a plurality of reinforcing ribs provided at a lower portion of the upper plate to support the upper plate, wherein both ends of one of the pair of first side plates and the pair of second side plates are respectively provided with first protrusions and The first hole into which the first projection is inserted is formed, respectively, and both ends of the plurality of reinforcing ribs are formed to protrude in the longitudinal direction, respectively, and the pair of first side plates and the pair of A method of manufacturing a grating, characterized in that any one of the second side plate is formed with a second hole into which the second protrusion is inserted, (a) a burring hole
  • the step (c) it is preferable to first bend the first protrusions formed among the pair of first side plates and the pair of second side plates, and then to bend the first holes to be formed.
  • the step (c) may include the pair of first side plates and the pair of reinforcing ribs before bending the second hole of the pair of first side plates and the pair of second side plates to be formed. It is preferable to position between the said 2nd hole in which a pair of 2nd side plate is formed.
  • the manufacturing method of the grating after the step (c), (d) the tip of the first projection inserted into the first hole and the tip of the second projection inserted into the second hole with respect to the front end surface using a caulking tool. It may further include a caulking process step to extend the cross-sectional area of the tip of the first projection and the tip of the second projection by taking in the vertical direction.
  • Both side surfaces of the reinforcing rib are preferably in contact with the outer circumferential surface of the flange disposed on both sides in the width direction of the reinforcing rib.
  • the first side plate of the grating is formed in parallel with the incision line to be spaced apart, the projection between the incision line is formed by protruding by pressing in the outward direction of the grating is formed, the step (a)
  • the method may further include forming the cut line on the panel, and the step (b) may further include pressing the portion between the cut lines and protruding the cut line.
  • a plurality of holes are formed in the upper plate, the flange is bent in the lower half around the hole is formed, thereby reducing the overall weight of the grating has the effect of improving durability.
  • the grating is integrally formed from one plate, the appearance is beautiful and the aesthetics are improved.
  • the stability of the grating is further improved.
  • the protruding pieces are formed on the side plate, even if a pedestrian or a vehicle passes, the grating does not flow in the drain pipe, thereby preventing noise.
  • the anti-slip protrusion is formed on the upper plate of the grating to prevent the pedestrian or the vehicle from slipping even if water is accumulated or snow is accumulated on the upper surface of the grating.
  • the working stability of the worker is improved because the grating can be maintained in a folded state, and the worker can work on the work with a comfortable mind.
  • FIG. 1 is a perspective view of a grating according to the prior art.
  • FIG. 2 is a photograph of a conventional grating in which the shape is deformed by high load.
  • Figure 3 is a perspective view of the grating according to an embodiment of the present invention from the top.
  • FIG. 4 is a perspective view of the grating of FIG. 3 viewed from below;
  • FIG. 5 is a cross-sectional view taken along line AA ′ of FIG. 3.
  • FIG. 6 and 7 illustrate various arrangement patterns of repair holes in the grating according to the present invention.
  • FIG. 8 are diagrams showing a state where the reinforcing ribs are joined to the reinforcing ribs and the side plates, respectively, when the reinforcing ribs are not subjected to the caulking treatment and when the caulking treatment is applied when the high load is applied.
  • FIG. 9 is a perspective view showing a state in which the grating is installed in the drain pipe according to an embodiment of the present invention.
  • FIG. 10 is an exploded view illustrating the connection state of FIG. 9.
  • FIG. 12 is a view sequentially illustrating a process of rotating in a state in which the grating is installed in the drain pipe according to an embodiment of the present invention.
  • FIG. 13 is a vertical cross-sectional view showing a construction state of the drain pipe is installed grating according to an embodiment of the present invention.
  • 14A to 14D are diagrams sequentially illustrating a process of manufacturing grating in each step according to a method of manufacturing grating according to an embodiment of the present invention.
  • 15 is a schematic driving state diagram of the burring device 500 used in the burring process of the grating manufacturing process according to an embodiment of the present invention.
  • FIG. 3 is a perspective view of the grating according to an embodiment of the present invention as viewed from above
  • FIG. 4 is a perspective view of the grating of FIG. 3 viewed from below
  • FIG. 5 is a cross-sectional view taken along line AA ′ of FIG. 3.
  • 6 and 7 illustrate various arrangement patterns of repair holes in the grating according to the present invention
  • FIGS. 8A and 8B show reinforcing ribs caulking treatment when high loads are applied, respectively. It is a figure which shows the coupling
  • FIG. 9 is a perspective view illustrating a state in which grating is installed in a drain pipe according to an embodiment of the present invention
  • FIG. 10 is an exploded view illustrating a connection state of FIG. 9.
  • FIG. 11 is an enlarged view of a pinhole of a drain pipe
  • FIG. 12 is a view sequentially illustrating a process of turning in a state in which grating is installed in the drain pipe according to an embodiment of the present invention.
  • Fig. 13 is a vertical sectional view showing a construction state of a drain pipe to which grating is installed according to an embodiment of the present invention.
  • 14A to 14D are diagrams sequentially illustrating a process of manufacturing grating in each step according to a method of manufacturing grating according to an embodiment of the present invention, in which metal panels each include a piercing process step, a burring process step, and a bending process. It is a figure which shows the state which passed through the step and the caulking process step.
  • the grating 100 includes an upper plate 110, a pair of first side plates 120, a pair of second side plates 130, and reinforcing ribs. And 150.
  • the pair of first side plates 120 and the pair of second side plates 130 are each bent from the top plate 110 to be integrally formed.
  • a plurality of holes 112 and non-slip protrusions 118 are formed in the upper plate 110, and a flange 114 extends downward of the upper plate 110 around the holes 112.
  • First ends 134 are formed at both ends of the second side plate 130, and first holes 122 are formed in the first side plate 120 to insert the first protrusions 134.
  • Second holes 152 are formed at both ends of the reinforcing rib 150, and the second protrusion 152 is inserted into the first side plate 120 and / or the second side plate 130. Is formed.
  • the first side plate 120 is formed such that the protruding piece 128 protrudes outward.
  • the grating 100 configured as described above allows the first side plate 120 or the second side plate 130 to be seated on the seating plate 230 formed on the drain pipe 200. It is constructed. When rain grating in the state in which the grating 100 is installed in the drain pipe 200, the rainwater flows into the drain pipe 200 through the water hole 112 formed in the upper plate 110.
  • the drain pipe 200 includes a flow path part and a support part, the flow path part includes a bottom plate 210 and a side wall plate 220, and the support part includes a seating plate 230 and a fixing plate 240.
  • the top plate 110 is made of a rectangular shape as a whole, a plurality of repair holes 112 are formed.
  • the pair of first side plates 120 are respectively bent and extended downward from both end portions in the width direction of the upper plate 110, and the pair of second side plates 130 each have both end portions in the longitudinal direction of the upper plate 110. Is bent downward to extend from, the first side plate 120 and the second side plate 130 is formed integrally with the upper plate (110).
  • the first side plate 120 and the second side plate 130 are seated on the seating plate 230 of the drain pipe 200 to support the top plate 110.
  • the first side plate 120 and the second side plate 130 are formed at the same height, but the height difference occurs at the boundary between the drain pipe 200 and the grating 100 when the grating 100 is seated on the drain pipe 200. In other words, it is preferable that the heights of the first side plate 120 and the second side plate 130 are determined so that the top surface of the grating 100 coincides with the top surface of the drain pipe 200.
  • the first side plate 120 and the second side plate 130 have a top plate 110 positioned at the center of one metal panel, and a pair of first sides on both sides of the top plate 110.
  • the side plate 120 is positioned, and the first side plate 120 and the second side plate 130 are positioned on the top and bottom of the top plate 110, respectively. It can be formed by bending below.
  • both ends of the first side plate 120 and the second side plate 130 are preferably fixed to each other.
  • welding is not desirable because it is time consuming and difficult to automate.
  • the first protrusion 134 is provided on one of the first side plate 120 and the second side plate 130. And a first hole 122 into which the first protrusion 134 is inserted.
  • the first protrusion 134 is formed in the second side plate 130 and the first hole 122 is formed in the first side plate 120, the opposite may be reversed. .
  • the first protrusion 134 is inserted into the first hole 122, which is inserted into the first hole 122.
  • the tip of the first protrusion 134 may be bent, twisted or caulked so that the first protrusion 134 does not fall out of the first hole 122 again.
  • bending or twisting the tip of the first protrusion 134 is such that the tip of the first protrusion 134 is formed on the first side plate 120 (the first protrusion 134 is formed on the first side plate 120).
  • the caulking treatment refers to a method of extending the cross-sectional area of the tip by taking a tip of the first protrusion 134 inserted into the first hole 122 in a direction perpendicular to the tip surface using a caulking tool.
  • the cross-sectional area of the tip of the first protrusion 134 is wider than that of the first hole 122 so that the first protrusion 134 may be formed. It does not come out from 1 hole 122.
  • the repair hole 112 is formed to penetrate from the upper surface to the lower surface of the upper plate 110, and forms a predetermined pattern and a plurality thereof.
  • the repair hole 112 forms an oval shape, and a flange 114 bent downward is formed around the repair hole 112.
  • the flange 114 extends a predetermined distance from the lower surface of the upper plate 110. Rainwater outside the drain pipe 200 may flow into the drain pipe 200 through the repair hole 112.
  • the repair hole 112 is preferably formed in a curved shape as in the present embodiment in order to reduce the stress concentration that may occur during the machining of the flange 114.
  • the shape of the repair hole 112 is not limited to the structure shown in the present embodiment, it may be changed to various structures such as a circle, a square, a polygon.
  • the flange 114 is bent downward from the circumference of the hole 112 and extends.
  • the flange 114 prevents the hole 112 from sagging or deformed by a vertical load acting on the hole 112, and guides the flow of rainwater flowing through the hole 112. Rain water can be smoothly introduced into the drain pipe (200).
  • the flange 112 is formed around the hole 112 even though a plurality of holes 112 are formed in the upper plate 110. Since stress concentration does not occur, the gross weight of the grating 100 can be reduced and has the effect of supporting the load without being deformed even under high loads. In addition, since the area of the repair hole 112 is wider than the area of the upper plate 110 of the grating 100, the drainage capacity is improved.
  • the reinforcing rib 150 is an elongated plate-shaped member, which is provided under the upper plate 110 to support the upper plate 110.
  • the upper surface of the reinforcing rib 150 is in contact with the lower surface of the upper plate 110, and both ends of the reinforcing rib 150 are fixed to the first side plate 120, respectively.
  • the reinforcing ribs 150 may be provided in plurality, and in this case, the reinforcing ribs 150 are spaced apart from each other in the width direction of the reinforcing ribs 150.
  • the reinforcing rib 150 supports the top plate 110 such that the top plate 110 is not sag or deformed by a load acting in the vertical direction on the top plate 110. As shown in FIG.
  • the reinforcing ribs 150 may be placed along the width direction of the grating 100 so that both ends thereof are fixed to the first side plate 120.
  • the reinforcing ribs 150 may be placed along the longitudinal direction of the grating 100 so that both ends are fixed to the second side plate 130 according to a user's need, and the width direction and the longitudinal direction may be aligned to form a grid shape perpendicular to each other. Can be set at the same time along.
  • both ends of the reinforcing rib 150 are fixed to the first side plate 120 will be described.
  • the reinforcing rib 150 may be fixed to the side plates 120 and 130 in various ways, but in this embodiment, the reinforcing rib 150 is fixed to the side plates 120 and 130. To this end, both ends of the reinforcing ribs 150 are formed with second protrusions 152 protruding in the longitudinal direction, and second holes 124 are formed in the side plates 120 and 130 with the second protrusions 152 inserted therein. do. When the second protrusion 152 is inserted into the second hole 124, both ends of the reinforcing rib 150 are fixed to the side plates 120 and 130.
  • the second hole 124 may be formed only in which both ends of the reinforcing rib 150 are fixed among the first side plate 120 and the second side plate 130.
  • the second hole 124 is formed only in the first side plate 120 and not in the second side plate 130. You may not.
  • the second hole 124 is formed in both the first side plate 120 and the second side plate 130 from the first manufacturing, there is an advantage that the user can freely select the installation direction of the reinforcing rib 150. .
  • the reinforcing ribs are merely inserted into the second holes 124 of the side plates 120 and 130 by simply inserting the second protrusion 152 of the reinforcing ribs 150.
  • 150 may be fixed to the first side plate 120.
  • the reinforcing rib 150 may be bent downward, and thus both ends of the reinforcing rib 150 may be bent.
  • the second holes 124 may be removed.
  • the tip of the second protrusion 152 may be bent, twisted or caulked while the second protrusion 152 is inserted into the second hole 124.
  • bending or twisting the tip of the second protrusion 152 may result in a large portion of the tip of the first protrusion 134 protruding to the outside of the first side plate 120. Degradability of the grating 100 and other parts is reduced. Therefore, it is preferable to be caulking at the tip of the second protrusion 152.
  • the second protrusion 152 In the state where the second protrusion 152 is inserted into the second hole 124, the second protrusion 152 is extended in a vertical direction with respect to the front end surface of the second protrusion 152 to expand the cross-sectional area of the tip of the second protrusion 152.
  • the caulking process is performed so that the 152 does not come out of the second hole 124.
  • the second protrusion 152 of the reinforcing rib 150 is caulked, as shown in FIG. 8B, even when a high load is applied to the grating 100, the reinforcing rib 150 does not fall out of the side plates 120 and 130. The durability of the grating 100 is improved.
  • the repair hole 112 may be arranged to form a variety of baton.
  • the holes 112 may be arranged in a matrix form by matching rows and columns.
  • the repair hole 112 may be arranged such that any one of the rows and columns is aligned and the other is crossed.
  • the hole 112 may be arranged inclined with respect to the edge of the upper plate 110 in the longitudinal direction of the hole 112.
  • a straight channel by the flange 114 may be formed on the lower surface of the upper plate 110 according to the arrangement pattern of the repair hole 112. 4 and 5, when the holes 112 are arranged in a matrix with rows and columns, the flange 114a of the holes 112a disposed on one row is disposed on the bottom surface of the upper plate 110.
  • the straight channel 116 extending in the row direction is formed by the flange 114b of the holes 112b disposed on another row adjacent to the.
  • a straight channel extending in the column direction may be formed by the flange 114 of the holes 112 disposed on another column adjacent to the flange 114 of the holes 112 disposed on one row. have.
  • the reinforcing rib 150 is preferably seated in and fixed to the straight channel 116.
  • both side surfaces of the reinforcing rib 150 in the width direction are preferably in contact with the outer circumferential surface of the flange 114 disposed on both sides of the reinforcing rib 150.
  • the straight channels may be formed by the flanges 114 of the holes 112 arranged adjacent to each other. 116 is formed.
  • the reinforcing rib 150 may be seated and fixed in the straight channel 116, and preferably, both sides of the reinforcing rib 150 may be in contact with the flange 114 disposed on both sides of the reinforcing rib 150.
  • the reinforcing rib 150 when the reinforcing rib 150 is seated in the straight channel 116 and both sides of the reinforcing rib 150 are configured to contact the flange 114 disposed on both sides of the straight channel 116, the reinforcing rib 150 may be formed.
  • the reinforcement rib 150 may be more stably fixed to the grating 100 because the 150 is restrained by the flange 114 to prevent the reinforcement rib 150 from flowing laterally.
  • the non-slip protrusion 118 is formed to protrude upward from the top plate 110 in the remaining portion where the repair hole 112 is not formed in the top plate 110.
  • the non-slip protrusion 118 is formed by protruding the circumference of the circular through hole upward. Since the anti-slip protrusion 118 protrudes upward through the circumference of the through hole, the frictional force is further increased, so that the pedestrian or the vehicle is prevented from slipping even if water is accumulated or snow is accumulated on the top plate 110 of the grating 100. In addition, since rainwater or snow around the non-slip protrusion 118 may flow into the drain pipe 200 through the through hole of the non-slip protrusion 118, the friction force of the upper plate 110 may be securely ensured.
  • the protruding piece 128 is formed to protrude outward from the grating 100 on the first side plate 120.
  • the protruding piece 128 may be formed by pressing an inner portion between the cut lines 129 that are side-by-side cut apart from the first side plate 120 in the outward direction of the grating 100.
  • the grating 100 and the drain pipe 200 are manufactured because the width of the grating 100 is smaller than the inner width of the seating plate 230 of the drain pipe 200 so that the grating 100 may be smoothly seated on the drain pipe 200. It is common to have a play between.
  • the grating 100 may flow in a state seated in the drain pipe 200, and in particular, when the vehicle passes the grating 100 at a high speed, the grating 100 may flow severely and noise may occur.
  • the protruding piece 128 when the protruding piece 128 is formed on the first side plate 120, the protruding piece 128 compensates for the clearance between the grating 100 and the drain pipe 200, thereby preventing the flow of the grating 100.
  • the protruding piece 128 protrudes in the outward direction of the grating 100, but may be elastically deformed in the inward direction of the grating 100 when the worker pushes the grating 100 into the drain pipe 200.
  • the grating 100 In the state in which 100 is seated on the drain pipe 200, the grating 100 is firmly fixed to the drain pipe 200 by pressing the inner wall of the fixing plate 240 by an elastic force. Accordingly, noise due to the flow of the grating 100 can be prevented.
  • the drain pipe 200 includes a flow path part that functions as a flow path through which the rainwater flows and a support part that is provided at an upper end of the flow path part to support the grating 100.
  • the flow path part includes a bottom plate 210 extending in the longitudinal direction and a side wall plate 220 that is bent upwards from both end portions of the bottom plate 210, respectively.
  • the support portion includes a seating plate 230 that is bent and extended in the width direction outward from the side wall plate 220, and a fixing plate 240 that is bent upward from the seating plate 230.
  • the drain pipes 200 may include a connecting piece 270, and both ends of the drain pipe 200 in the longitudinal direction may be connected to each other ( A first slit 222 into which the 270 is inserted may be formed.
  • the first slit 222 is formed by cutting in parallel to the side wall plate 220 in a vertical direction.
  • the inner portion 223 of the first slit 222 is preferably pressed to protrude in the outward direction of the drain pipe (200).
  • the connecting piece 270 includes an insertion portion 272 having a predetermined length and having a flat plate shape, and a locking portion 273 bent from one end of the insertion portion 272.
  • the insertion portion 272 When inserted into the one slit 222, the insertion portion 272 is sequentially inserted into the first slit 222 of both drain pipes (200, 200 '), and when the connecting piece 270 is inserted at a predetermined distance, the locking portion (273) The connecting piece 270 is no longer inserted into the inner portion 223 of the first slit 222.
  • both drain pipes 200 and 200' are connected and fixed to each other.
  • the drain pipe 200 is configured to serve as a formwork.
  • reinforcing bars may be embedded around the drain pipe 200.
  • the support pipe 280 is provided on the drain pipe 200, and the second slit 224 may be formed on the side wall plate 220.
  • the support piece 280 is formed by bending the plate-shaped member integrally, the insertion portion 282, the support portion 283 bent in the outward direction of the drain pipe 200 from the insertion portion 282, and the support portion 283 And a guide portion 284 bent upwardly from the top portion.
  • the second slit 224 is formed by cutting in parallel to the side wall plate 220 in the horizontal direction.
  • the inner portion 225 of the second slit 224 is preferably pressed to protrude in the outward direction of the drain pipe (200).
  • the support piece 283 is caught by the inner portion 225 of the second slit 224, so that the support piece 280 is drained from the drain pipe 200. It is fixed to).
  • the reinforcing bar 330 may be installed on the upper portion of the support part 283, and the iron is not moved in the outward direction of the drain pipe 200 by the guide part 284. The position of 330 can be fixed.
  • the drain pipe 200 is disposed above the base layer 310 along the installation path.
  • the base layer 310 may be ground or a concrete layer that is cured by being primarily poured.
  • the adjacent drain pipes 200 are connected by using the connection piece 270.
  • the concrete 320 is poured on the outer surface of the drain pipe 200 to cure.
  • the concrete 320 is preferably poured to a height where the fixing plate 240 of the drain pipe 200 is located.
  • the grating 100 is seated on the seating plate 230. Mounting the grating 100 to the drain pipe 200 may be made before or at the same time as placing the concrete 320 on the outside of the drain pipe (200).
  • the drain pipe 200 of the present invention does not need to install a separate formwork when placing concrete, the process is simple and air can be shortened.
  • the grating 100 needs to be stably fixed in a state in which the grating 100 is seated by the drain pipe 200, and in particular, the grating 100 is not required to flow in the vertical direction. If the grating 100 is flowed without being fixed to the drain pipe 200, the grating 100 may be separated from the drain pipe 200 by a pressure difference when the vehicle passes through the grating 100 at high speed, and concentrates. When heavy rain occurs, the water flowing through the drain pipe 200 flows back to the grating 100, so that the grating 100 may be separated from the drain pipe 200. In addition, due to the recent increase in raw material prices, theft of metal structures is poor. If the grating 100 is easily separated from the drain pipe 200, there is a risk of theft.
  • the grating 100 may be stably fixed to the drain pipe 200, but the grating 100 needs to be fixed to the drain pipe 200 in a structure capable of opening the drain pipe 200 if necessary.
  • the drain pipe 200 and the grating 100 may be coupled by the hinge pin 260.
  • the pin plate 242 into which the hinge pin 260 is inserted is formed in the fixing plate 240, and either one of the pair of first side plates 120 or the pair of second side plates 130 of the grating 100 is formed.
  • Pin guide holes 126 are formed respectively.
  • the hinge pin 260 is sequentially inserted into the pin guide hole 126 of the grating 100 and the pin hole 242 of the drain pipe 200 to fix the grating 100 to the drain pipe 200 in a rotatable manner.
  • the pin guide hole 126 is formed in the first side plate 120
  • the grating 100 may be rotated about an axis along the width direction
  • the pin guide hole 126 is formed in the second side plate 130. In this case, the grating 100 may be rotated about an axis along the longitudinal direction.
  • the grating 100 does not deviate from the drain pipe 200, and if necessary, the grating 100 hinge pin 260. By rotating around the operator can access the inside of the drain pipe (200).
  • the hinge pin 260 is preferably fixed to the drain pipe 200 within the range that the grating 100 can be rotated smoothly.
  • a protrusion 243 protruding radially inward is formed on an inner circumferential surface of the pin hole 242 of the drain pipe 200.
  • At least one protrusion 243 is formed on an inner circumferential surface of the pin hole 242.
  • each of the protrusions 243 may be disposed at equal intervals along the circumference of the pin hole 242.
  • the inner diameter of the portion where the protrusion 243 is formed in the pin hole 242 is smaller than the outer diameter of the hinge pin 260.
  • the hinge pin 260 is inserted into the pin hole 242 in a force-fitting manner, and the hinge pin 260 does not fall well after the hinge pin 260 is inserted into the pin hole 242.
  • Pin guide hole 126 is a circular arc shape in which the interruption is located on the innermost side of the grating 100 and both ends 126b, 126c are inclined upward and downward to the outside of the grating 100, respectively, An indentation 126a indented into the grating 100 is formed.
  • FIG. 12A in the state where the grating 100 is coupled to the drain pipe 200 by the hinge pin 260 and closed, the hinge pin 260 is indented with the pin guide hole 126. 126a).
  • the grating 100 rotates around the hinge pin 260 so that the hinge pin 260 is relatively pinned.
  • the lower end 126c of the guide hole 126 is moved, and when the grating 100 is further rotated, the corner 111 of the upper plate 110 of the grating 100 is caught by the drain pipe 200, thereby FIG. 12. As shown in (c), the grating 100 no longer rotates. In this state, when the operator slightly lifts the grating 100 upward, the edge 111 of the upper plate 110 is spaced apart from the drain pipe 200, so that the grating 100 is shown in FIG. You can rotate more. If the grating 100 is further curled in this state, as shown in FIG. 12E, the grating 100 is completely flipped.
  • the grating 100 When the grating 100 is completely folded backward, the grating 100 does not close forward even when the grating 100 is left in a folded state because the center of gravity of the grating 100 is located behind the hinge pin 260. In addition, even when the grating 100 is folded forward by the wind or external force being applied while the grating 100 is folded, the side plate of the grating 100 is shown in FIG. The grating 100 is not closed by catching the drain pipe 200. In order to completely close the grating 100, the grating 100 may be closed by pushing the grating 100 to the rear side so that the hinge pin 260 is positioned at the indentation 126a and then rotating the grating 100.
  • the manufacturing method of the grating according to an embodiment of the present invention is a piercing process step of forming various holes including a burring hole in the prepared metal plate, a burring process step of forming a flange by processing the burring hole, the first side plate and the second side plate And a coking process step of caulking a bending process step of bending the coupling protrusion and the insertion protrusion.
  • burring holes 410 are formed in the flat panel 400.
  • the panel 400 is a flat panel made of metal in which the top plate 110, the first side plate 120, and the second side plate 130 are formed on the same plane.
  • the burring hole 410 is formed through the panel 400.
  • the panel 400 is molded together with the first hole 122, the second hole 124, the pin guide hole 126, the anti-slip protrusion hole 420, and the incision line 129 for the protruding piece. Can be.
  • a burring process step is performed on the panel 400 on which the piercing process step is performed.
  • the burring hole 410 formed in the piercing process step is expanded to be molded into the hole 112, and at the same time, a flange is formed around the hole 112.
  • Burring extends the through hole by inserting a burring punch or press punch having a cross-sectional area larger than the area of the hole into the through hole formed in the panel 400 or flanges around the through hole. It is a processing method for molding.
  • the burring device 500 includes an upper mold 510, a lower mold 520, and a burring punch 530.
  • the upper mold 510 and the lower mold 520 fix one side and the other side of the panel 400 to be burring.
  • the portion contacting the panel 400 may be formed flat.
  • the upper mold 510 is provided with a guide hole 512 penetrating from the upper surface to the lower surface.
  • the guide hole 512 guides the movement of the burring punch 530.
  • a molding hole 522 is formed in the lower mold 520 to have a predetermined depth from the upper surface.
  • Burring punch 530 to form a flange 114 in the burring hole 410 formed in the panel 400.
  • the burring punch 530 is slidably installed along the guide hole 512 of the upper mold 510. In the burring process, the burring punch 530 is pressed toward the panel 400 to move along the guide hole 512. The tip protrudes to the lower end of the upper mold 510 and is inserted into the forming hole 522 of the lower mold 520 through the burring hole 410 formed in the panel 400.
  • the burring process will be described in detail.
  • the panel 400 for burring is loaded between the upper mold 510 and the lower mold 520.
  • the panel 400 is adjusted between the upper mold 510 and the lower mold 520 to adjust the panel ( Clamp 400).
  • the burring punch 530 moves downward along the guide hole 512.
  • the tip of the burring punch 530 comes into contact with the panel 400 first.
  • the burring punch 530 continues to move downward while in contact with the panel 400, as shown in FIG. 15B, the burring punch 530 forms the forming hole 522 of the lower mold 520.
  • the flange 114 is formed at the same time as the circumferential portion of the burring hole 410 of the panel 400 is bent downward. As shown in FIG. 15C, when the formation of the flange 114 is completed, the burring punch 530 moves upward again, and the upper mold 510 also moves away from the lower mold 40 again. do. Burring processing is performed in this manner.
  • the burring process is also performed on the non-slip protrusion hole 420 so that the periphery of the non-slip protrusion hole 420 is protruded to one side, thereby forming the anti-slip protrusion 118.
  • the portion between the protruding pieces incision line 129 is pressed, so that the protruding piece 128 may be formed to protrude in the outward direction of the grating 100.
  • the first side plate 120 and the second side plate 130 are bent with respect to the top plate 110.
  • the first side plate 120 and the second side plate 130 are bent downward with respect to the upper plate 110 along the bend line 430.
  • the first side plate 120 and the first protrusion 134 may be inserted into the first hole 122 without additional processing during the bending of the first side plate 120 and the second side plate 130. After bending the first protrusion 134 of the second side plate 130 is formed first, and then the first hole 122 is formed is then bent. In other words, in the present embodiment, the second side plate 130 on which the first protrusion 134 is formed is first bent, and then, during the bending process step, the first side plate 120 on which the first hole 122 is formed is bent. One protrusion 134 is inserted into the first hole 122 by itself.
  • the reinforcing rib 150 between the first side plate 120 before bending the first side plate 120 into which both ends of the reinforcing rib 150 is inserted.
  • the first side plate 120 is bent.
  • the second protrusions at both ends of the reinforcing ribs 150 automatically during the bending process of the first side plate 120 without having to insert the reinforcing ribs 150 into the first side plate 120 through a separate additional process.
  • 152 is inserted into the second hole 124 of the first side plate 120.
  • the first side plate 120 and the second side plate 130 are bent downward with respect to the upper plate 110, and the reinforcing rib 150 is provided. Both ends of are fixed between the first side plate (120).
  • a caulking treatment is performed on the first protrusion 134 of the second side plate 130 and the second protrusion 152 of the reinforcing rib 150 using the caulking tool 600.
  • the caulking treatment refers to a method in which the tip ends of the first protrusion 134 and the second protrusion 152 are taken in a direction perpendicular to the tip end surface by using the caulking tool 600 to expand the cross-sectional area of the tip end.
  • the grating 100 shown in FIG. 3 is finally manufactured.
  • the above description is merely illustrative of the technical idea of the present invention, and those skilled in the art will be able to make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. . Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.
  • the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.
  • grating 200 drain pipe

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une grille conçue pour couvrir un caniveau. Ledit procédé de fabrication de grille selon l'invention comprend les étapes consistant à : (a) percer un panneau de façon à former des trous soyés, de premiers et seconds trous destinés à former des orifices d'évacuation de l'eau ; (b) insérer un poinçon de soyage dans les trous soyés de manière à agrandir les trous soyés pour former les orifices d'évacuation de l'eau et des brides ; et (c) plier une première et une seconde plaque latérale vers le bas par rapport à la plaque supérieure.
PCT/KR2013/003116 2012-07-06 2013-04-15 Procédé de fabrication de grille WO2014007455A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0074157 2012-07-06
KR1020120074157A KR101245858B1 (ko) 2012-07-06 2012-07-06 그레이팅의 제조 방법

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WO2014007455A1 true WO2014007455A1 (fr) 2014-01-09

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PCT/KR2013/003116 WO2014007455A1 (fr) 2012-07-06 2013-04-15 Procédé de fabrication de grille

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KR (1) KR101245858B1 (fr)
WO (1) WO2014007455A1 (fr)

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* Cited by examiner, † Cited by third party
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KR102301214B1 (ko) * 2020-03-09 2021-09-13 신원엠에스(주) 엠보싱 구조를 갖는 그레이팅
KR102237273B1 (ko) * 2020-08-03 2021-04-07 (주)이삭그레이팅 미끄럼방지 조립식 맨홀뚜껑

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010107264A (ko) * 2000-05-26 2001-12-07 이선도 플랜지피팅의 제조장치 및 제조방법
KR20050120542A (ko) * 2004-06-17 2005-12-22 오송미 화이바 글라스 액을 희석한 몰탈을 매설한 금속 덮개판
KR20090125971A (ko) * 2008-06-03 2009-12-08 박봉환 그레이팅 및 그 제조 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010107264A (ko) * 2000-05-26 2001-12-07 이선도 플랜지피팅의 제조장치 및 제조방법
KR20050120542A (ko) * 2004-06-17 2005-12-22 오송미 화이바 글라스 액을 희석한 몰탈을 매설한 금속 덮개판
KR20090125971A (ko) * 2008-06-03 2009-12-08 박봉환 그레이팅 및 그 제조 방법

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