KR20060033766A - Grating having plate for preventing bad smell from flowing upstream - Google Patents

Abstract

The present invention relates to a grating having a malodor backflow prevention plate of a structure which is easy to install and manufacture, as well as to prevent backflow of malodors generated from a drainage channel or a sump and to drain rainwater more reliably in rainy weather. The grating according to the present invention includes: an upper plate provided with drainage holes, a side plate provided on the side of the upper plate, and lower support portions supported on the step of the drainage channel, respectively, extending inwardly from the lower part of the side plate, and the upper plate. And gratings including end plates for closing the ends of the space formed by the side plates and the lower support plates, by welding inside the upper plate and the side plate such that a space of a predetermined size is formed between the lower supports. A plurality of reinforcing bars fixed to reinforce the strength of the upper plate ; A backflow prevention plate that is supported to pivot on the end plates in a space between the reinforcement bars and the lower support parts; A weight provided on one side of the non-return plate above the pivot support point of the non-return plate; And a support plate for supporting the other portion of the non-return plate, to maintain the non-return plate on a downward inclined surface opposite the weight, and to be provided on a lower support portion on the opposite side of the weight.

Grating, Non-Return Plate, Weight, Hinge, Support Plate

Description

Grating having plate for preventing bad smell from flowing upstream}

1 is a partially separated perspective view of a grating having a malodor backflow prevention plate in accordance with one embodiment of the present invention.

FIG. 2 is a cross-sectional view when the grating shown in FIG. 1 is installed in a drainage path. FIG.

Figure 3 is an exploded perspective view of the grating having a malodor backflow prevention plate according to another embodiment of the present invention.

4 is a cross sectional view of the grating shown in FIG. 3;

* Description of the symbols for the main parts of the drawings *

1: grating 2: drain hole

3: top plate 4: side plate

5a, 5b: Lower support part 6a, 6b: End plate

7: reinforcement stand 8, 8a, 8b, 8c: backflow prevention plate

9: weight 10: support plate

11, 11a, 11b, 11c: hinge ring 12: hinge pin

12a: hinge rod 13: hole

14: through hole 100: drainage

101: space

The present invention relates to a grating, and more particularly, to a grating having a backflow preventing plate for preventing backflow of sewage due to heavy rainfall during the rainy season as well as backflow of odor from the drainage passage.

In general, gratings are formed on the upper side of the drainage side of the roadside so that rainwater or snow melted is introduced into the drainage through the lattice-shaped drainage holes.

However, since the drainage where the grating is installed is located adjacent to the sidewalk, cigarette butts and other small garbage discarded by pedestrians flow into the drainage through the gutter's drain hole, while the leaves and fruits of the roadside tree also flow into the drainage. Severe odor caused by decay with water accumulated in the drainage can be discharged to the outside through the drain hole.

As mentioned above, a number of inventions have been proposed in order to prevent backflow of odors generated in drainage or sump tanks.

One of them is a device as disclosed in Korean Patent Application Publication No. 10-2002-75284 filed under the name "sewage backflow, odor prevention device incorporated into the lid, pedestal."

According to the present invention, a plurality of valve plates hingedly installed on the lower surface of each of the plurality of drain grooves formed in the lid part are rotated in one direction by the weight, so that the drain grooves are closed by the valve plate, respectively. The valve plate has a structure in which the drain plate is opened by rotating in the other direction by the weight of the rainwater in the rain.

However, since the valve plate is installed in the lower portion of the lid part, the valve plate must be opened by the weight of the rainwater filled in the space made by the drain groove and the valve plate, so that the weight of the weight of the rainwater is filled in the space. It must be lighter. However, since the size of the drain groove is limited, the weight of the rainwater filled in the space is inevitably small, and therefore, the valve plate closing the drain groove by the weight having a weight smaller than the weight of the rainwater filled in the space is Even when a small force is applied, the valve is easily opened. On the other hand, in order to prevent this, when the weight of the weight is increased, the valve is not opened by rainwater, and drainage is not possible, and the valve plate is installed in each drain groove. Therefore, there is a drawback that the production is cumbersome.

Korean Patent Application Publication No. 10-2004-0086239 also proposes an invention having a structure similar to the above invention.

As another invention, there is Korean Registered Room No. 20-0372205, filed and registered under the name of "odor backflow prevention device", the design is formed in the upper part is caught in the hook can be supported on the step formed in the drain hole, A drainage inlet is formed inside the upper part, and the opening part is formed in an oblique direction at the lower part, and has an opening / closing plate coupled to the hinge in an oblique upper direction of the opening part. A close member is interposed between the hinge and the opening / closing plate to prevent backflow, and a weight of a predetermined weight is provided to close the opening / closing plate at one end of the upper side of the opening / closing plate.

However, this design has the drawback that not only the installation work is troublesome, but also the installation cost and manufacturing cost increase because the odor backflow prevention device and the grating are separately installed in the drainage path.

Accordingly, it is an object of the present invention to provide a grating having a malodor backflow prevention plate of a structure that is easy to install and manufacture, as well as to prevent backflow of malodors generated from a drainage channel or a sump and to drain rainwater more reliably in rainy weather. It is.

The object as described above is an upper plate provided with drainage holes, a side plate provided on the side of the upper plate, and lower support portions supported on the step of the drainage channel, respectively, extending inwardly from the bottom of the side plate, and the upper plate. And gratings including end plates for closing the ends of the space formed by the side plates and the lower support plates, by welding inside the upper plate and the side plate such that a space of a predetermined size is formed between the lower supports. A plurality of reinforcing bars fixed to reinforce the strength of the upper plate ; A backflow prevention plate that is supported to pivot on the end plates in a space between the reinforcement bars and the lower support parts; A weight provided on one side of the non-return plate above the pivot support point of the non-return plate; And a supporting plate for supporting the other portion of the non-return plate to maintain the non-return plate on a downward sloped surface opposite to the weight, and a support plate provided on a lower support portion on the opposite side of the weight. By grating according to one embodiment.

The object as described above also includes: an upper plate provided with drainage holes, a side plate provided on the side of the upper plate, and lower support portions each extending from the lower portion of the side plate inward to be supported by the step of the drainage passage, and the A grating comprising end plates for closing an end of the space formed by the top plate, the side plate and the lower support plates, the upper plate, the side plate and the lower support plate welded to partition the interior of the grating into a plurality of spaces Multiple reinforcing bars for reinforcing the strength of the plate ; A plurality of backflow prevention plates positioned in spaces formed by the reinforcements and the end plates, each of which has a hinge ring at a lower portion thereof; Weights respectively provided on one side of the non-return plate above the pivot support point of the respective non-return plate; A support plate for supporting the other portions of the non-return plate to maintain the non-return plate at an inclined surface downwardly opposite the weight, the support plate being provided at a lower support portion opposite the weight; And a hinge rod having both ends supported in the holes of the end plates through the hinge rings of the non-return plate and the through holes formed in the reinforcing bars from the holes of the end plates. It can be achieved by grating according to the embodiment.

In the above, the support plate is provided on the lower support plate to be inclined downward toward the backflow prevention plate.

The pivot support point of the non-return plate is preferably eccentrically positioned on the weight side.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a partially separated perspective view of a grating having a malodor backflow prevention plate according to the present invention, and FIG. 2 is a cross-sectional view when the grating shown in FIG. 1 is installed in a drainage passage.

As shown in Figures 1 and 2, the grating 1 having the malodor backflow prevention plate according to the present invention is a steel, preferably a rolled steel grating in which drain holes 2 of various shapes are projected by laser cutting at the top. to be. The grating 1 extends inwardly from the bottom of the top plate 3, the side plate 4 formed integrally with the top plate 3, and the side plate 4, on which the drain holes 2 are formed, Lower supports 5a, 5b supported on the step 11 and end plates 6a, 6b for closing the end of the grating 1.

As can be seen from the figure, the grating 1 according to the present invention can be formed by the upper plate 3, the side plate 4 and the lower support portions 5a, 5b being bent by one plate body. Inside the grating 1 formed by the upper plate 3, the side plate 4 and the lower supports 5a and 5b, the strength of the upper plate 3 is reinforced with respect to the load applied to the upper plate 3. A number of reinforcements 7 are provided for this purpose. These reinforcing rods 7 are fixed by welding to the inside of the top plate 3 and the side plate 4, the size and number of which can be appropriately selected depending on the size of the grating 1. The height of the reinforcing rods 7 has a height such that when the upper portion is welded to the upper plate 3, a space 101 having a predetermined size can be formed between the lower supporting portions 5a and 5b.

The space 101 formed between the reinforcing table 7 and the lower supporting portions 5a and 5b in the grating 1 is provided with a malodor backflow prevention mechanism according to the present invention. The malodor backflow prevention mechanism provided in the grating 1 according to the present invention includes a backflow prevention plate 8 and a backflow prevention plate 8 rotatably supported by the end plates 6a and 6b as shown in the drawing. The weight 9 provided on one side of the non-return plate 8 to provide weight to the non-return plate 8 so that it always remains closed, and the weight 9 prevents the non-return plate 8 from being And a supporting plate 10 for supporting the other portion of the non-return plate 8 when closed to keep the non-return plate 8 on an inclined surface.

The non-return plate 8 is provided with hinge rings 11 biased from the center portion to one end portion at both end portions as can be seen from the figure, and a weight 9 is provided adjacent to the hinge ring 11. In the hinge ring 11, hinge pins 12 provided on the end plates 6a and 6b of the grating 1 are inserted. As described above, since the hinge connecting portion of the non-return plate 8 is positioned to one side from the center, the non-return plate 8 has a difference in its weight around the hinge connecting portion, and such a difference in weight Is compensated by the weight 9 so that the portion having a short length has a heavy weight. Thus, the non-return plate 8 is rotated by the weight 9 to the portion where the weight 9 is provided about the hinge connecting portion.

However, since the support plate 10 extends beyond the lower portion of the grating 1 to support one side of the backflow prevention plate 8, the backflow prevention plate 8 is maintained in a proper state by the support plate 9. At this time, the backflow prevention plate 8 is maintained in a state inclined downward toward the support plate 10 because the support plate 10 extends beyond the lower portion of the grating 1. On the other hand, the support plate 10 is installed in the lower portion of the grating 1 in an inclined form as can be seen from the figure. Therefore, foreign matter introduced into the grating 1 through the drain hole 2 formed in the upper plate 3 moves downwardly along the inclined surface of the backplate preventing plate 8 located in the inclined surface and the supporting plate 10 installed in an inclined form. Are gathered.

When the grating 1 according to the present invention having the structure as described above is installed in the drainage passage 100, the backflow prevention plate 8 is closed in order to prevent odor or filthy backflow by the weight 9. When the rainfall is low during rain, the non-return plate 8 is discharged to the drainage path 100 through the gap between the non-return plate 8 and the support plate 10 in a closed state. However, if the precipitation is greater than the amount discharged into the drain 100 through the gap between the backflow prevention plate 8 and the support plate 10, the side plates 5a and 5b and the backflow prevention plate 8 and the support plate ( When the rainwater accumulates in the space 101 made by 10), and the rainwater accumulated in the space 101 is larger than the weight of the weight 9, the backflow prevention plate 8 is a backflow prevention plate around the hinge connecting portion. By turning in the direction in which (8) opens, the backflow prevention plate 8 is opened, and rain water is discharged | emitted to the drain path 100. FIG.

That is, in rainy weather, the rainwater gathers downward along the inclined surfaces of the backflow prevention plate 8 and the support plate 10 by placing the backflow prevention plate 8 and the support plate 10 on the inclined surface, and according to the amount of precipitation. The backflow prevention plate 8 opens and closes according to the weight of the rain water.

On the other hand, the backflow prevention plate 8 is provided so that the edge of the side on which the weight 9 is installed maintains a constant clearance with the inner surface of the side plate 5b of the grating 1. Therefore, no interference occurs between the non-return plate 8 and the side plates 5b when the non-return plate 8 is pivoted about the hinge connecting portion. In addition, the weight 9 may be determined in size and position according to the position of the hinge connecting portion, that is, the weight of the non-return plate 8 to be turned in one direction. In addition, the position of the hinge pin 12 provided at the hinge connecting portion, i.e., the end plates 6a, 6b, is determined by the size and grating of the space 101 between the reinforcement 7 and the lower supports 5a, 5b. It may be determined according to the amount of protrusion of the support plate 10 to the bottom of 1).

By having a structure having the structure as described above, in the grating 1 according to the invention, the end plates 6a, 6b fixed to both ends of the grating 1 to seal the end of the grating 1 are The hinge pin 12 provided on the inside with the backflow prevention plate 8 supported by the support plate 10 is inserted into the hinge ring 11 provided on both sides of the backflow prevention plate 8. It is then welded to and fixed to the end of the grating 1.

On the other hand, in this embodiment, the hinge pin 12 provided on the end plates 6a and 6b may be a circular rod instead of a pin, and when a flat rod is used, the circular rod is inserted into the end plates 6a and 6b. A hole is formed. The circular rod is inserted into the other end plate 5b or 5a through the hinge ring 11 provided in the non-return plate 8 from the hole of one end plate 5a or 5b, and the end portion of the circular rod is By being fixed to the end plates 5a and 5b by welding, the same function as the hinge pin 12 can be achieved.

As described above, when the backflow prevention plate 8 is provided in the grating 1, when the grating 1 is installed in the drainage path 100 without the work of separately installing the backflow prevention mechanism in the drainage path 100. In addition, it is installed in the drainage path 100 together with the grating 1, it is possible to reduce the installation work time and installation cost.

Figure 3 is an exploded perspective view of the grating having a malodor backflow prevention plate according to another embodiment of the present invention, Figure 4 is a side cross-sectional view of the grating shown in FIG.

As shown in FIGS. 3 and 4, the reinforcing rods 7 provided on the grating 1 are located at regular intervals in the space between the upper plate 3 and the lower support plates 5a and 5b. It has the same height as the height of the space between 3) and the lower support plates 5a, 5b. Therefore, the inner space of the grating 1 is partitioned into a plurality of spaces by the end plates 6a and 6b and the reinforcement bars 7. Each reinforcing rod 7 has a through hole 14 formed at the bottom thereof.

In each space inside the grating 1 partitioned into a plurality of spaces by the end plates 6a, 6b and reinforcing rods 7, a plurality of backflow preventing plates 8a, 8b, 8c having the structure as described above. Are located. At this time, each of the non-return plates 8a, 8b, 8c is also supported on one side by the supporting plates 10 installed in an inclined form in each space, and in this state, the end plates 6a or 6b. The hinge rod 12a is inserted into the grating 1 through the holes 13a or 13b formed in the holes. The hinge rod 12a inserted into the inside of the grating 1 has a through hole provided in the hinge rings 11a, 11b, 11c provided in the lower portion of each of the backflow preventing plates 8a, 8b, 8c and the reinforcing bar 7. It is inserted into the hole 13b or 13a formed in the other end plate 6b or 6a through 14, and is fixed to the end plate 6a, 6b by welding in this state. As can be seen from this, the positions of the holes 13a and 13b formed in the end plates 6a and 6b should coincide with the through holes 14 formed in the reinforcing bars 7.

By being configured as described above, the non-return plates 8a, 8b, 8c shown in Figs. 3 and 4 are each independently opened when a certain amount of rainwater is accumulated in the space, and the rainwater is drained to the drain 100. Discharge.

The grating 1 having such a structure also has the same function as the backflow prevention function of the grating 1 having the structure as shown in FIGS. 1 and 2. The non-return plates 8, 8a, 8b, 8c used in the present invention are made of antirust metal, for example, stainless steel or tin plated steel sheet, to prevent rust, and have a thickness of about 1 to 2 mm.

According to the grating having the malodorous backflow prevention plate according to the present invention having the structure as described above, it is possible to prevent backflow of the malodor generated from the drainage passage or the sump and drain the rainwater more reliably in rainy weather, as well as to install and manufacture Can be facilitated.

In addition, although the backflow prevention mechanism according to the present invention has been described and illustrated with respect to the grating made of the rolled steel sheet in the drawings and description, it can be applied to the steel grating made of a lattice form, of course, to the general knowledge in the art. It is obvious to those who have it.

Claims (5)

A top plate provided with drainage holes, a side plate provided on the side of the top plate, and lower support portions respectively extending inwardly from the bottom of the side plate to be supported on the step of the drainage passage, and the top plate, the side plate and the lower support plates. A grating comprising end plates for closing an end of a space formed by A plurality of reinforcing bars fixed by welding to the inside of the upper plate and the side plate so as to form a space having a predetermined size between the lower supporting parts, to reinforce the strength of the upper plate ; A backflow prevention plate that is supported to pivot on the end plates in a space between the reinforcement bars and the lower support parts; A weight provided on one side of the non-return plate above the pivot support point of the non-return plate; And And a support plate for supporting the other portion of the non-return plate to maintain the non-return plate at an inclined surface downward to the opposite side of the weight, the support plate being provided at the lower support portion opposite the weight. The grating according to claim 1, wherein the support plate is provided on the lower support plate to be inclined downward toward the backflow prevention plate. A top plate provided with drainage holes, a side plate provided on the side of the top plate, and lower support portions respectively extending inwardly from the bottom of the side plate to be supported on the step of the drainage passage, and the top plate, the side plate and the lower support plates. A grating comprising end plates for closing an end of a space formed by A plurality of reinforcing bars welded to the upper plate, the side plate and the lower support plate to partition the interior of the grating into a plurality of spaces, for reinforcing the strength of the upper plate ; A plurality of backflow prevention plates positioned in spaces formed by the reinforcements and the end plates, each of which has a hinge ring at a lower portion thereof; Weights respectively provided on one side of the non-return plate above the pivot support point of the respective non-return plate; A support plate for supporting the other portions of the non-return plate to maintain the non-return plate at an inclined surface downwardly opposite the weight, the support plate being provided at a lower support portion opposite the weight; And And a hinge rod having both ends supported in the holes of the end plates through the hinge rings of the non-return plate and the through holes formed in the reinforcement bars from the holes of the end plates. 4. The grating according to claim 3, wherein the support plate is provided on the lower support plate to be inclined downward toward the backflow prevention plate. The grating according to any one of claims 1 to 4, wherein the pivot support point of the non-return plate is eccentrically positioned toward the weight side.

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