Storm Drain Inlet Having Flood Prevention and Odor Blocking Functions

Abstract

The present invention relates to a rainwater catcher having disaster preparedness, flood prevention, and odor blocking functions. To this end, it may be configured to include a rainwater receiving body (110), a horizontal steel grating (200), a side steel grating (100), and an odor and backflow prevention panel (150). The side steel grating (100) can improve the amount of rainwater inflow and drainage capacity by providing an additional inflow path for rainwater during heavy rainfall. The odor and backflow prevention panel (150) is installed on the inner side of the side steel grating (100) and is equipped with a rubber packing (156), a magnet (160), and a gravity reinforcement part to block the outflow of odors generated from the rainwater pipe (500) under normal conditions and to block the outflow of backflow water caused by the rise in the water level of the rainwater pipe (500) during heavy rainfall. Accordingly, it is possible to simultaneously secure improved rainwater inflow capacity, odor reduction, and backflow prevention functions, thereby preventing road flooding and urban flooding, and enhancing the safety and reliability of public facilities.

Description

Technology Field

[0001] The present invention relates to a storm drain inlet, and more specifically, to a storm drain inlet installed on roads, sidewalks, parking lots, parks, industrial complexes, and various public facilities to guide rainwater into a storm drain during rainfall.

[0002] In particular, the present invention relates to a rainwater catcher having disaster preparedness flood prevention and odor blocking functions, which improve the inflow and drainage capacity of rainwater during heavy rainfall by forming an additional rainwater inlet on the side wall of the rainwater catcher, block the outflow of odors generated from rainwater pipes or manholes during normal times through an odor and backflow prevention panel installed inside the rainwater catcher, and block backflow caused by the rise in the water level inside the rainwater pipe.

[0003] Furthermore, the present invention relates to a multi-functional rainwater catcher capable of improving the airtightness and stability of the panel by applying a magnet, a rubber packing, and a gravity reinforcement structure to the odor and backflow prevention panel, and simultaneously implementing odor reduction during normal times and flood prevention during heavy rainfall. Background Technology

[0004] Generally, storm drains are installed on roads, sidewalks, parking lots, and various public facilities to rapidly drain rainwater generated during rainfall. Storm drains are facilities that collect rainwater flowing along the surface and guide it into storm pipes or manholes, serving as important infrastructure for preventing urban flooding and ensuring drainage.

[0005] Conventional storm drains typically adopt a horizontal steel grating structure installed at the same height as the road surface. While this structure can perform a certain level of drainage in normal rainfall conditions, the recent frequent occurrence of localized torrential downpours and record-breaking rainfall due to climate change has led to problems where the capacity for rainwater inflow and drainage is insufficient due to the limited inflow area. Consequently, when heavy rainfall occurs in a short period, rainwater fails to flow in quickly, causing road flooding, underground flooding, and urban flooding. Furthermore, the accumulation of various sediments, organic matter, and pollutants inside storm pipes or manholes generates malodorous gases such as hydrogen sulfide (H₂S) and ammonia (NH₃). These odors leak out through the storm drains, causing discomfort to nearby residents and degrading the living environment. Consequently, some residents arbitrarily close the inlet of the storm drain with vinyl, rubber sheets, or other barriers to prevent odor leakage; however, this hinders the smooth inflow of rainwater during heavy rainfall, leading to increased flood damage. Meanwhile, when a large volume of rainwater exceeding the drainage capacity of the storm drain flows in during heavy rainfall, the water level inside the storm drain rises rapidly. This can cause water inside the storm drain to backflow to the ground through the storm drain. Such backflow is a cause not only for road flooding but also for pedestrian safety accidents, traffic obstruction, and damage to various facilities. In this regard, a flow gate for sewers equipped with an odor blocking function, a drainage structure equipped with a backflow prevention device, or a side-flow type drainage structure designed to increase the amount of rainwater inflow have been proposed. In this regard, Korean published patent No. 10-2023-0054970 discloses a flow gate for sewers, which is configured to provide an odor blocking function by installing a blocking plate on the inner side of the inlet.

[0006] However, most conventional technologies focus on only one of the functions, such as odor blocking, backflow prevention, or improved drainage, and thus have limitations in simultaneously satisfying the need for improved drainage capacity during heavy rainfall, odor blocking during normal times, and backflow prevention in storm drains. In addition, conventional technologies have problems such as insufficient sealing power of the odor blocking plate, difficulty in securing stable blocking performance when backflow occurs, and reduced convenience of opening and closing during maintenance. Therefore, there is a continuously increasing demand for a new type of storm drain structure that can effectively block odors in storm drains during normal times, increase the inflow of rainwater to prevent flooding damage during heavy rainfall, and block backflow when the water level inside the storm drain rises. Prior art literature

[0007] Domestic Patent Publication No. 10-2023-0054970 Domestic Registered Patent No. 10-1295928 Domestic Registered Patent No. 10-0961152 Domestic Registered Patent No. 10-0918431 Domestic Registered Patent No. 10-1301697 The problem to be solved

[0008] The present invention has been devised to solve the problems of the conventional technology described above, and aims to provide a rainwater catcher capable of increasing the amount of rainwater inflow and preventing road flooding and urban flooding by improving the structural limitations of existing rainwater catchers that discharge rainwater through only a limited upper inlet during heavy rainfall.

[0009] Furthermore, the present invention aims to provide a storm drain that improves the living environment of residents by effectively blocking odors generated inside storm pipes or manholes from leaking out through the drain, and fundamentally resolves the problem of arbitrarily closing the inlet of the storm drain due to odor generation. Additionally, the present invention aims to provide a storm drain that prevents road flooding, damage to facilities, and pedestrian safety accidents by blocking backflow water caused by the rise in water level inside storm pipes during heavy rainfall from being discharged to the ground through the drain.

[0010] In addition, the present invention aims to provide a rainwater catcher that can improve the convenience and reliability of maintenance by integrating odor blocking and backflow prevention functions into a single structure, while maintaining a stable sealed state under normal conditions and enabling smooth opening and closing when necessary. Furthermore, the present invention aims to provide a high-performance rainwater catcher equipped with disaster preparedness functions, which is differentiated from conventional simple odor blocking technology or simple backflow prevention technology by simultaneously applying a side drainage structure and an odor and backflow prevention structure. means of solving the problem

[0011] To achieve the above objective, the present invention relates to a rainwater catcher installed on a road or sidewalk, wherein

[0012] It may be configured to include a horizontal steel grating installed on the upper part; a side steel grating installed on the side wall of the rainwater catch basin to provide an additional rainwater inflow path during heavy rainfall; and an odor and backflow prevention panel disposed on the inner side of the side steel grating to block the outward leakage of odors generated from the rainwater pipe or manhole under normal conditions and to block the outward discharge of backflow water when the water level inside the rainwater pipe rises. The odor and backflow prevention panel may be formed to be openable and closed for inspection or maintenance by having an opening / closing and fixing ring, and may be configured to minimize leakage of odors and backflow water by installing a rubber packing on the outer surface of the panel to be in close contact with the inner wall of the rainwater catch basin. In addition, the odor and backflow prevention panel may be equipped with a magnet to ensure that the panel maintains a stable sealed state under normal conditions and may be configured to be selectively opened during rainwater inflow or maintenance. In addition, gravity reinforcement holes are formed at the edges of the above-mentioned odor and backflow prevention panel to increase the panel's self-weight and improve structural rigidity, thereby enabling it to maintain a stable sealed state even when internal pressure rises in the rainwater pipe or backflow occurs.

[0013] Accordingly, the present invention is configured to simultaneously implement the functions that conventional odor blocking technology or backflow prevention technology perform individually in a single rainwater catcher structure by additionally providing a side steel grating to expand the rainwater inflow area in order to improve the limited drainage capacity of existing horizontal rainwater catchers, and by using an odor and backflow prevention panel to block odors during normal times and block backflow water during heavy rainfall.

[0014] In particular, the present invention is configured to simultaneously improve excellent drainage performance, odor blocking performance, and flood prevention performance compared to conventional technology by organically combining lateral drainage, odor blocking, and backflow prevention functions within a single structure. Effects of the invention

[0015] By forming multiple rainwater inflow paths using horizontal and side steel gratings, the rainwater inflow area can be increased compared to conventional top-flow type rainwater catchers, and the drainage flow rate that can be processed per unit of time during heavy rainfall can be improved. Consequently, the likelihood of road flooding, urban flooding, and facility inundation can be reduced. The odor and backflow prevention panel installed on the inner side of the side steel grating effectively blocks the leakage of malodorous gases, such as hydrogen sulfide and ammonia, generated inside the rainwater pipe or manhole. This improves the surrounding living environment and prevents the rainwater catcher from being inadvertently closed due to odors. The rubber packing adheres closely to the inner wall of the catcher body to minimize leakage of odors and backflow water, while the magnet stably maintains the sealing state of the panel. Furthermore, the gravity reinforcement increases the panel's self-weight and structural rigidity, ensuring that the seal is maintained even when internal pressure in the rainwater pipe rises. As a result, odor blocking performance can be improved compared to conventional simple odor blocking devices, backflow blocking stability can be enhanced compared to conventional simple backflow prevention devices, and rainwater treatment capacity can be improved compared to conventional general rainwater catch basins. In particular, by simultaneously implementing drainage, odor blocking, and backflow prevention functions within a single structure, flood prevention, improvement of the living environment, and protection of facilities can be secured simultaneously without separate additional equipment, and its usability as a disaster prevention infrastructure for responding to urban floods can be enhanced. Brief explanation of the drawing

[0016] Figure 1 is a perspective view showing the overall configuration of a rainwater catcher with disaster preparedness, flood prevention, and odor blocking functions. Figure 2 is a cross-sectional view schematically showing the internal structure of a rainwater catcher with disaster preparedness, flood prevention, and odor blocking functions. FIG. 3 is a perspective view schematically showing the configuration of an odor and backflow prevention panel. Figure 4 is a schematic diagram showing the state in which rainwater flows into the storm drain through the horizontal steel grating and the side steel grating during heavy rainfall. Specific details for implementing the invention

[0017] A preferred embodiment of a rainwater catcher having disaster preparedness, flood prevention, and odor blocking functions will be described in detail below with reference to the attached drawings. However, regarding the technical concept of the following embodiment, FIG. 1 is a perspective view showing the overall configuration of the rainwater catcher. As shown in FIG. 1, the rainwater catcher is configured to include a rainwater catcher body (110), a horizontal steel grating (200), a side steel grating (100), and an odor and backflow prevention panel (150).

[0018] FIG. 2 is a cross-sectional view showing the internal structure of a rainwater catcher. A rainwater inflow space (120) is formed inside the main body (110) of the rainwater catcher, and a rainwater pipe connection part (130) is formed at the bottom so as to be connected to a rainwater pipe (500). Side steel gratings (100) are installed on the side walls to provide an additional rainwater inflow path during heavy rain.

[0019] FIG. 3 is a perspective view showing the configuration of an odor and backflow prevention panel (150). The odor and backflow prevention panel (150) is equipped with an opening and closing and fixing ring (151), an opening and closing hole (155), a rubber packing (156), a packing fixing screw (157), a gravity reinforcement hole (158), and a magnet (160).

[0020] FIG. 4 is a configuration diagram showing the operating state during heavy rain. Rainwater (600) moving along the road (300) and the ceiling plate (109) can be simultaneously introduced into the rainwater inflow space (120) through the horizontal steel grating (200) and the side steel grating (100), and then discharged into the rainwater pipe (500) through the rainwater pipe connection part (130).

[0021] The components are described in detail below. The main body (110) is a structure embedded in the boundary of a road (300) or sidewalk (400) and may be formed of reinforced concrete, cast iron, or stainless steel. A rainwater inflow space (120) is formed inside the main body (110), and the rainwater inflow space (120) can perform the function of temporarily collecting rainwater (600) that flows in through the horizontal steel grating (200) and the side steel grating (100). A rainwater pipe connection part (130) is formed at the bottom of the rainwater inflow space (120) and can be connected to a rainwater pipe (500), and the collected rainwater (600) can be discharged to an external drainage facility through the rainwater pipe (500). The horizontal steel grating (200) is installed on the upper part of the main body (110) and can perform the function of introducing rainwater (600) flowing along the road (300). The side steel grating (100) can be installed on the side wall of the rainwater receiving body (110). The side steel grating (100) can increase the rainwater inflow area by additionally introducing rainwater (600) that cannot be processed by the horizontal steel grating (200) alone during heavy rain. Accordingly, the rainwater processing capacity per unit time can be improved compared to the conventional structure. An odor and backflow prevention panel (150) can be placed on the inner side of the side steel grating (100). The odor and backflow prevention panel (150) can perform the function of blocking odors (700) generated inside the rainwater pipe (500) during normal times and blocking backflow water (800) caused by the rise in the water level of the rainwater pipe (500) during heavy rain. A rubber packing (156) can be installed on the outer surface of the odor and backflow prevention panel (150). The rubber packing (156) is in close contact with the inner wall of the rainwater receiving body (110) to prevent leakage of odors (700) and backflow water (800). The rubber packing (156) can be secured by a packing fixing screw (157). A magnet (160) can be installed on the rear or edge of the odor and backflow prevention panel (150).The magnet (160) can improve odor blocking performance by ensuring that the panel remains in a stable, close-fitting state under normal conditions. A gravity reinforcement hole (158) may be formed at the bottom or edge of the odor and backflow prevention panel (150). A weight made of metal or concrete may be accommodated in the gravity reinforcement hole (158), thereby increasing the self-weight of the panel and improving structural rigidity.

[0022] <Example 1>

[0023] The main body of the rainwater catcher (110) may be made of reinforced concrete or cast iron, and the horizontal steel grating (200) may be installed at the same height as the road surface. The side steel grating (100) may be formed on the side wall of the main body of the rainwater catcher (110), and the width may be formed in the range of 150 to 500 mm. The odor and backflow prevention panel (150) may be made of stainless steel or hot-dip galvanized steel, and a rubber packing (156) made of EPDM material may be installed on the outer surface. The magnet (160) may be a neodymium magnet, and a plurality of them may be placed on the edge or rear of the panel.

[0024] <Example 2>

[0025] Gravity reinforcement holes (158) can be formed in multiple locations on the lower edge of the odor and backflow prevention panel (150), and their self-weight can be increased by filling with concrete or inserting metal weights. With such a configuration, the sealing power of the panel can be improved when the internal pressure of the rainwater pipe rises.

[0026] <Comparative Example>

[0027] The comparative example was set as a rainwater catcher having only a conventional general horizontal steel grating structure. In the comparative example, the side steel grating (100), the odor and backflow prevention panel (150), the rubber packing (156), the magnet (160), and the gravity reinforcement hole (158) were not applied.

[0028] <Experimental Example>

[0029] The drainage performance, odor blocking performance, and backflow prevention performance of the example and the comparative example were compared by simulating heavy rainfall conditions of 100 mm per hour.

[0030] Drainage performance comparison division Conventional rainwater catcher Examples Excellent inflow area (relative value) 100 145 Drainage flow rate (L / min) 1,000 1,420 Time of flooding (minutes) 18 31 Drainage efficiency (%) 100 142

[0031] As can be seen in Table 1 above, the embodiment with the side steel grating (100) applied has an increased area of ​​water inflow and a larger drainage flow rate compared to the comparative example, and accordingly, it was confirmed that the time to flooding is delayed and the drainage efficiency is improved.

[0032] Odor blocking performance comparison division Conventional rainwater catcher Examples Hydrogen sulfide concentration (ppm) 18.5 1.2 Ammonia concentration (ppm) 11.8 0.9 Odor blocking rate (% 0 Over 90%

[0033] As can be seen in Table 2 above, in the embodiment with the odor and backflow prevention panel (150), rubber packing (156) and magnet (160) applied, the concentrations of hydrogen sulfide and ammonia were significantly reduced compared to the comparative example, and it was confirmed that the external leakage of odor (700) from the rainwater pipe (500) was effectively blocked.

[0034] Backflow prevention performance comparison division Conventional rainwater catcher Examples Whether backflow occurs generation Non-occurrence Backflow water outflow (L / min) 380 15 or less Backflow blocking rate (% 0 95% or more

[0035] As can be seen in Table 3 above, in the embodiment in which the odor and backflow prevention panel (150), rubber packing (156), magnet (160) and gravity reinforcement hole (158) are applied, unlike the comparative example, backflow was suppressed and the amount of backflow water (800) flowing out was significantly reduced, so it was confirmed that the backflow blocking performance was improved. Explanation of the symbols

[0036] 100 : Side steel grating 109 : Ceiling panel 110 : Rainwater catcher main body 120: Excellent inflow space 130 : Rainwater pipe connection 150 : Odor and backflow prevention panel 151 : Opening / closing and locking ring 155 : Opening and closing holes 156 : Rubber gasket 157 : Packing fixing screw 158 : Gravity reinforcement hole 160 : Magnet 200 : Horizontal steel grating 300 : Road 400 : Press 500 : Storm drain 600 : Excellent 700 : Stench

Claims

Claim 1 A rainwater catcher installed on a road or sidewalk, comprising: a rainwater catcher body (110) having a rainwater inflow space (120) formed inside and a rainwater pipe connection part (130) formed at the bottom that communicates with a rainwater pipe (500); a horizontal steel grating (200) installed on the upper part of the rainwater catcher body (110); and a side steel grating (100) installed on the side wall of the rainwater catcher body (110). A rainwater receiver having disaster preparedness flood prevention and odor blocking functions, characterized by including an odor and backflow prevention panel (150) installed on the inner side of the side steel grating (100) to block odors generated from the rainwater pipe (500) under normal conditions and to block backflow water when the water level of the rainwater pipe (500) rises, wherein the odor and backflow prevention panel (150) includes a rubber packing (156), a magnet (160), and a gravity reinforcement part installed to be in close contact with the inner surface of the rainwater receiver body (110). Claim 2 A rainwater catcher having disaster preparedness, flood prevention, and odor blocking functions, characterized in that, in claim 1, the side steel grating (100) is formed to provide an additional inflow path for rainwater during heavy rainfall to improve the drainage capacity of the rainwater catcher. Claim 3 A rainwater receiver having disaster preparedness flood prevention and odor blocking functions, characterized in that, in claim 1, the odor and backflow prevention panel (150) is formed to be openable and closed by having an opening / closing and fixing ring (151) and an opening / closing hole (155). Claim 4 A rainwater receiver having disaster preparedness flood prevention and odor blocking functions, characterized in that, in claim 1, the rubber packing (156) is installed along the outer surface of the odor and backflow prevention panel (150) and is in close contact with the inner wall of the rainwater receiver body (110) to prevent leakage of odor and backflow water. Claim 5 A rainwater catcher having disaster preparedness flood prevention and odor blocking functions, characterized in that, in claim 1, the magnet (160) is installed on the rear or edge of the odor and backflow prevention panel (150) so that the odor and backflow prevention panel (150) maintains a sealed state under normal circumstances. Claim 6 A rainwater receiver having disaster preparedness, flood prevention, and odor blocking functions, characterized in that, in claim 1, the gravity reinforcement member includes a gravity reinforcement hole (158) formed at the bottom or edge of an odor and backflow prevention panel (150), and is configured to increase the self-weight of the panel by a weight filled in the gravity reinforcement hole (158). Claim 7 A rainwater receiver having disaster preparedness flood prevention and odor blocking functions, characterized in that, in claim 1, the odor and backflow prevention panel (150) is configured to block the external leakage of hydrogen sulfide, ammonia, and other odorous gases generated inside the rainwater pipe (500). Claim 8 A rainwater receiver having disaster preparedness flood prevention and odor blocking functions, characterized in that, in claim 1, the odor and backflow prevention panel (150) is configured to block the external discharge of backflow water caused by the rise in the water level of the rainwater pipe (500) during heavy rainfall.

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