Street inlet cover structure with sewage prevention and odor prevention functions
The rainwater catcher cover structure addresses debris and odor issues in drainage channels by using a rotating cover plate and detection system to ensure seamless drainage and odor control during rain events.
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Applications
- Current Assignee / Owner
- DONG EUI UNIV IND ACADEMIC COOPERATION FOUND
- Filing Date
- 2025-01-22
- Publication Date
- 2026-07-29
AI Technical Summary
Conventional drainage channel covers are complex and inefficient in preventing debris and odor release, often failing to maintain smooth drainage during rainy weather due to dirt accumulation and operational hindrance.
A rainwater catcher cover structure with a rotating cover plate, hinge mechanism, and elastic support, allowing it to close during dry conditions to block debris and odors, and open during rain to allow water flow, enhanced by a detection and drive system to ensure smooth operation.
Effectively prevents debris entry and odor release while ensuring reliable drainage by automatically adapting to rain conditions, minimizing channel blockage and odor emission.
Smart Images

Figure PAT00001_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a rainwater catcher cover structure installed at the entrance of a drainage channel, and more specifically, to a rainwater catcher cover structure installed at the entrance of a roadside drainage channel that allows rainwater to flow naturally into the drainage channel while preventing the entry of debris such as cigarette butts, trash, and fallen leaves, and suppressing the release of foul odors from the drainage channel to the outside. Background Technology
[0002] Generally, drainage channels are formed along both sides of the road to drain rainwater during rainfall, and rainwater catchment structures are installed at predetermined intervals as needed within the drainage channels. These structures filter soil and debris flowing in with the rainwater and discharge them into the sewer. Additionally, a rainwater catchment cover called a "grating" is installed at the upper opening of the structure to filter out the inflow of relatively large debris, such as surrounding leaves or plastic sheets, that are swept in by the rainwater.
[0003] However, since the drainage channel where the grating is installed is located adjacent to the sidewalk, cigarette butts and other small debris discarded by pedestrians flow into the drainage channel through the drainage holes of the grating, while leaves and fruits of street trees also flow into the drainage channel, and severe odors caused by the decay of such debris along with the water accumulated in the drainage channel can be released to the outside through the drainage holes.
[0004] Numerous inventions have been proposed to prevent the backflow of odors generated in drainage channels or collection tanks.
[0005] For example, Korean Patent Publication No. 10-2004-0086239 discloses a ‘grating for odor prevention and safety’ in which a rotatable opening and closing part is installed on the bottom surface of the drain hole of the main body of the grating so that the drain hole is normally closed by the opening and closing part to prevent odors from leaking out, and even if water flows in while the opening and closing part is rotated, the crossbar prevents the inflow of foreign substances and prevents safety accidents.
[0006] However, conventional drain cover structures designed to prevent dirt inflow and odors, including the grating of the aforementioned published patent, are difficult to apply in practice due to their complex structure, as the structures for preventing dirt inflow and odors are installed on the grating. Furthermore, problems exist such as the inability to perform drainage functions during rainy weather because the opening and closing operation is hindered by dirt accumulated on the grating. Prior art literature
[0007] Republic of Korea Registered Patent No. 10-2148162 (Registered on August 20, 2020) Republic of Korea Published Patent No. 10-2004-0086239 (Published on October 8, 2004) The problem to be solved
[0008] The present invention is intended to solve the above-mentioned problems, and the objective of the present invention is to provide a rainwater catcher cover structure that is structurally simple, effectively prevents the inflow of dirt such as cigarette butts, trash, and fallen leaves and the generation of bad odors during normal times, and ensures smooth drainage by ensuring that opening operation occurs reliably due to the load of rainwater during rain. means of solving the problem
[0009] A rainwater catcher cover structure according to one embodiment of the present invention for achieving the above-mentioned purpose comprises: a grating installed to cover a drainage inlet and formed with a plurality of holes open to allow rainwater to flow in; a cover plate installed on the lower side of the grating, with one end rotating up and down around a hinge axis on one side of the drainage inlet to open and close the drainage inlet; a hinge member rotatably connecting the cover plate to one side of the drainage inlet; and an elastic member that elastically supports the cover plate with respect to one side of the drainage inlet so that the cover plate closes the drainage inlet when no load of rainwater is applied to the cover plate, wherein the cover plate is characterized by having a plurality of rainwater drainage grooves arranged along its edge.
[0010] A rainwater catcher cover structure according to another embodiment of the present invention may further include a control unit having an opening / closing detection sensor that detects the state in which the cover plate rotates downward to open the drainage inlet, and a communication module that receives a signal detected by the opening / closing detection sensor and transmits it to an external drainage management server.
[0011] A rainwater catcher cover structure according to another embodiment of the present invention may further include a cover driving unit that receives a control signal from the control unit and rotates to forcibly rotate the cover plate when the opening / closing detection sensor detects that the cover plate is in a closed state during rainfall.
[0012] The above cover drive unit may include a drive load housing fixedly installed on one side of the drainage inlet, a drive motor installed in a sealed manner inside the drive load housing and rotating by a control signal transmitted from the control unit, a wire spool coupled to the shaft of the drive motor, and a wire that penetrates the drive load housing, with one end connected to the lower surface of the cover plate and the other end connected to the wire spool, and which pulls the cover plate downward as the wire spool rotates while being wound around the wire spool.
[0013] A rainwater collection cover structure according to another embodiment of the present invention may further include a mesh-shaped dirt collecting member installed across the upper surface of the cover plate to prevent dirt accumulated on the cover plate from falling into a drain when the cover plate rotates downward due to the load of rainwater.
[0014] A rainwater catcher cover structure according to another embodiment of the present invention may include: a cover plate installed at the lower side of a grating installed at the entrance of a drainage channel, wherein one end rotates up and down around a hinge axis on one side of the entrance of the drainage channel to open and close the lower part of the grating; a hinge member rotatably connecting the cover plate to one side of the entrance of the drainage channel; an elastic member that elastically supports the cover plate with respect to one side of the entrance of the drainage channel so that the cover plate closes the entrance of the drainage channel when no load of rainwater is applied to the cover plate; an opening / closing detection sensor that detects the state in which the cover plate rotates downward to open the lower part of the grating; a control unit having a communication module that receives a signal detected by the opening / closing detection sensor and transmits it to an external drainage management server; and a cover driving unit that receives a control signal from the control unit and rotates to forcibly rotate the cover plate when the opening / closing detection sensor detects that the cover plate is in a closed state during rain. Effects of the invention
[0015] According to the present invention, under normal conditions, the cover plate closes the drainage inlet to prevent dirt such as cigarette butts, trash, and fallen leaves from entering the drainage, and at the same time, suppresses the release of odors generated in the drainage to the outside. When it rains, the cover plate rotates downward around the hinge axis due to the weight of the rainwater, opening the drainage inlet so that rainwater can naturally flow into the drainage.
[0016] In particular, it is desirable to arrange multiple rainwater drainage grooves along the edge of the cover plate so that, when rainfall is light, rainwater can naturally fall downward into the drainage channel through the grooves. Brief explanation of the drawing
[0017] FIG. 1 is a cross-sectional view showing a rainwater catcher cover structure according to one embodiment of the present invention. FIG. 2 is a cross-sectional view showing an example of operation of a rainwater catcher cover structure according to one embodiment of the present invention. FIG. 3 is a plan view of a cover plate constituting a rainwater catcher cover structure according to one embodiment of the present invention. Specific details for implementing the invention
[0018] A rainwater catcher cover structure according to embodiments of the present invention will be described in detail below with reference to the attached drawings. Since the present invention is susceptible to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to specific disclosed forms, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. Similar reference numerals have been used for similar components in the description of each drawing. In the attached drawings, the dimensions of the structures are depicted enlarged or reduced to the actual size to ensure clarity of the present invention or to allow for a general understanding of the configuration.
[0019] Additionally, terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.
[0021] Referring to FIGS. 1 to 3, a rainwater catcher cover structure according to one embodiment of the present invention comprises a grating (10) installed to cover a drainage inlet (E), a cover plate (20) installed on the lower side of the grating (10), a hinge member (30) rotatably connecting the cover plate (20) to one side of the drainage inlet (E), an elastic member (not shown) elastically supporting the cover plate (20) to one side of the drainage inlet (E), and a mesh-shaped dirt collection member (40) installed to cross the upper surface of the cover plate (20).
[0022] The grating (10) is made of a metal grid-shaped flat plate having a plurality of holes formed in a grid shape to allow rainwater to flow in, and is installed to cover the drainage inlet (E). The grating (10) can be constructed by applying a known grating installed in a drain.
[0023] The above cover plate (20) is in the form of a rectangular flat plate and rotates up and down around a hinge axis (33) installed on the lower side of the grating (10) at the drainage inlet (E) to open and close the lower side of the grating (10). Normally, the cover plate (20) maintains a horizontal position relative to the ground at the lower side of the drainage inlet (E) and closes the drainage inlet (E) to prevent dirt such as cigarette butts, trash, and fallen leaves from entering the drainage, and at the same time functions to suppress the release of foul odors generated in the drainage to the outside. The material of the cover plate (20) may be made of a hard material such as plastic or metal.
[0024] It is desirable to have a plurality of rainwater drainage grooves (21) arranged along the edge of the cover plate (20) so that when rainfall is low, rainwater can naturally fall downward into the drainage channel through the rainwater drainage grooves (21).
[0025] One end of the above cover plate (20) is connected to a hinge member (30) installed on one side of the drainage inlet (E) and rotates around the hinge axis (33) of the hinge member (30). Here, the hinge member (30) may have a structure similar to a hinge. For example, the hinge member (30) may include a first hinge plate (31) connected to one end of the above cover plate (20), a second hinge plate (32) fixed to one side of the drainage inlet (E), and a hinge axis (33) that connects the first hinge plate (31) and the second hinge plate (32) so as to be rotatable relative to each other.
[0026] The above elastic member (not shown) elastically supports the cover plate (20) on one side of the drainage inlet (E), so that the cover plate (20) closes the drainage inlet (E) when no load of rainwater is applied to the cover plate (20). The elastic member (not shown) can be configured by applying a torsion spring that is coupled to the hinge shaft (33) of the above hinge member (30).
[0027] The above dirt collection member (40) is in the form of a mesh and is installed to cross the upper surface of the cover plate (20) at the middle and end portions of the cover plate (20), thereby preventing dirt accumulated on the cover plate (20) from falling into the drain when the cover plate (20) rotates downward due to the load of rainwater.
[0028] The rainwater catcher cover structure according to one embodiment of the present invention configured as described above normally has the cover plate (20) close the drainage inlet (E) to prevent dirt such as cigarette butts, trash, and fallen leaves from entering the drainage and simultaneously suppresses the release of bad odors generated in the drainage to the outside, and when it rains, the drainage inlet (E) is opened by rotating downward around the hinge axis (33) of the hinge member (30) due to the load of rainwater falling through the hole of the grating (10), thereby allowing rainwater to naturally flow into the drainage.
[0029] When the above cover plate (20) is rotated downward by rainwater to drop the rainwater into the drainage channel, the dirt gets caught on one or more dirt collecting members (40) installed on the upper surface of the cover plate (20) and does not fall, and only the rainwater falls.
[0030] If the cover plate (20) rotates downward and the dirt accumulated on the cover plate (20) falls into the drainage channel along with the rainwater, the drainage channel may become blocked by a large amount of dirt, making drainage difficult, or the dirt accumulated in the drainage channel may rot and cause a bad odor.
[0031] Since the above-mentioned dirt collection member (40) is formed in the shape of a mesh, small dirt and rainwater naturally pass through the dirt collection member (40) and fall into the drainage channel, but large dirt such as fallen leaves, cigarette butts, and plastic bags get caught in the dirt collection member (40) and do not fall. Therefore, if the dirt collected on the upper surface of the cover plate (20) and the dirt collection member (40) is collected after the rain stops, contamination of the drainage channel can be minimized.
[0032] Meanwhile, during rainfall, the cover plate (20) rotates downward around the hinge axis (33) to open the drainage inlet (E), but if debris such as fallen leaves or vinyl gets stuck on the edge of the cover plate (20) and the cover plate (20) cannot rotate smoothly, the drainage inlet (E) remains closed, and rainwater cannot flow into the drainage, which may cause problems such as flooding of the roadside.
[0033] Accordingly, the system may further include an opening / closing detection sensor (60) that detects the state in which the cover plate (20) is rotated downward to open the drainage inlet (E), a control unit (50) equipped with a communication module that receives a signal detected by the opening / closing detection sensor (60) and transmits it to an external drainage management server, and a cover driving unit (70) that receives a control signal from the control unit (50) and rotates to forcibly rotate the cover plate (20) when the opening / closing detection sensor (60) detects that the cover plate (20) is in a closed state during rain.
[0034] The above opening / closing detection sensor (60) may be configured as a contact switch installed on the second hinge plate (32) of the hinge member (30) and pressed by the first hinge plate (31), but it may also be configured by applying a known non-contact proximity sensor.
[0035] Additionally, the control unit (50) may be installed watertightly within the drive load housing (71) of the cover drive unit (70). The control unit (50) may be equipped with a power supply unit including a battery for operating electrical components such as an open / close detection sensor (60), a drive motor (72), and a communication module (not shown).
[0036] The above cover drive unit (70) may include a drive load housing (71) fixedly installed on one side of the drainage inlet (E), a drive motor (72) installed sealed inside the drive load housing (71) and rotating by a control signal transmitted from the control unit (50), a wire spool (73) coupled to the shaft of the drive motor (72), and a wire (74) that passes through the drive load housing (71), has one end connected to the lower surface of the cover plate (20) and the other end connected to the wire spool (73), and is wound around the wire spool (73) as the wire spool (73) rotates by the drive motor (72) and pulls the cover plate (20) downward.
[0037] In this rainwater catcher cover structure, if the cover plate (20) does not rotate downward during rainfall, the rotation of the cover plate (20) is not detected by the opening / closing detection sensor (60), and the control unit (50) transmits this via wireless or wired communication to a management server that manages drainage management tasks to notify of the blockage of the drainage inlet (E), and applies a control signal to the drive motor (72) of the cover drive unit to operate the drive motor (72) and pull the wire (74) to forcibly pull the cover plate (20) downward and rotate it, thereby preventing the blockage of the drainage.
[0038] Although preferred embodiments of the present invention have been described above, the present invention may use various variations, modifications, and equivalents. It is clear that the present invention can be applied in the same way by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims. Explanation of the symbols
[0039] E: Drainage channel entrance 10 : Grating 20 : Cover plate 21 : Rainwater drainage groove 30 : Hinge member 40 : Filth collection absence 50 : Control unit 60 : Open / close detection sensor 70 : Cover drive unit 71 : Drive load housing 72 : Drive motor 73 : Wire spool 74 : Wire
Claims
Claim 1 A rainwater receiving cover structure comprising: a grating installed to cover the entrance of a drainage channel and formed with a plurality of holes open to allow rainwater to flow in; a cover plate installed on the lower side of the grating, with one end rotating up and down around a hinge axis on one side of the drainage channel entrance to open and close the drainage channel entrance; a hinge member rotatably connecting the cover plate to one side of the drainage channel entrance; and an elastic member that elastically supports the cover plate with respect to one side of the drainage channel entrance so that the cover plate closes the entrance of the drainage channel when no load of rainwater is applied to the cover plate, wherein the cover plate has a plurality of rainwater drainage grooves arranged along its edge. Claim 2 A rainwater catcher cover structure according to claim 1, further comprising a control unit having an opening / closing detection sensor that detects the state in which the cover plate rotates downward to open the drainage inlet, and a communication module that receives the signal detected by the opening / closing detection sensor and transmits it to an external drainage management server. Claim 3 A rainwater catcher cover structure according to paragraph 2, further comprising a cover driving unit that receives a control signal from the control unit and rotates to forcibly rotate the cover plate when the opening / closing detection sensor detects that the cover plate is in a closed state during rainfall. Claim 4 In paragraph 3, the cover drive unit comprises a drive load housing fixedly installed on one side of the drainage inlet, a drive motor installed sealedly inside the drive load housing and rotating by a control signal transmitted from the control unit, a wire spool coupled to the shaft of the drive motor, and a wire penetrating the drive load housing, with one end connected to the lower surface of the cover plate and the other end connected to the wire spool, which is wound around the wire spool as the wire spool rotates and pulls the cover plate downward. Claim 5 A rainwater receiving cover structure according to claim 1, further comprising a mesh-shaped dirt collecting member installed across the upper surface of the cover plate to prevent dirt accumulated on the cover plate from falling into a drain when the cover plate rotates downward due to the load of rainwater. Claim 6 A rainwater catcher cover structure comprising: a cover plate installed at the lower side of a grating installed at the entrance of a drainage channel, wherein one end rotates up and down around a hinge axis on one side of the drainage channel entrance to open and close the lower part of the grating; a hinge member rotatably connecting the cover plate to one side of the drainage channel entrance; an elastic member that elastically supports the cover plate with respect to one side of the drainage channel entrance so that the cover plate closes the entrance of the drainage channel when no load of rainwater is applied to the cover plate; an opening / closing detection sensor that detects the state in which the cover plate rotates downward to open the lower part of the grating; a control unit equipped with a communication module that receives a signal detected by the opening / closing detection sensor and transmits it to an external drainage management server; and a cover driving unit that receives a control signal from the control unit and rotates to forcibly rotate the cover plate when the opening / closing detection sensor detects that the cover plate is in a closed state during rain.