Electrical Power Distribution Safety Apparatus for Building Structures

Abstract

The present invention discloses an eco-friendly river underwater weir capable of purifying river water quality. The disclosed eco-friendly river underwater weir capable of purifying river water quality comprises: a weir structure including a weir foundation installed along the width direction of the river and a vertical weir body cast vertically into the weir foundation to store river water; at least one overflow aeration inducing section formed in a stepped manner to aerate the overflowing water, provided along the length direction of the vertical weir body with a height lower than that of the vertical weir body to facilitate water overflow; a purification vegetation module provided to be floatable on the water-retaining side of the weir structure to purify water quality; a vegetation module guide section fixed to the weir foundation to be located on the water-retaining side of the weir structure and coupled to the purification vegetation module so as to be vertically movable to guide the floating of the purification vegetation module according to the river water level; and a sediment discharge hole section formed in the weir foundation to discharge sediment accumulated on the water-retaining side of the weir structure to the downstream side of the weir structure.

Description

Technology Field

[0001] The present invention relates to an eco-friendly river weir capable of purifying river water quality, and more specifically, to an eco-friendly river weir capable of purifying river water quality by equipping the weir, which controls the water level of the river, with a purification vegetation module and an overflow aeration induction unit to improve the water quality of the river water and, at the same time, selectively discharging sediment deposited on the riverbed to improve the maintainability of the weir. Background Technology

[0003] Generally, agricultural water in rural areas or industrial water in factory zones is secured by installing embankments on nearby rivers and using water barrier structures such as weirs, or by constructing small-scale dams or reservoirs in mountainous areas. These weirs, small-scale dams, and reservoirs are installed to store water above a certain level, and the amount of water stored is regulated by opening and closing sluice gates as needed.

[0004] While such underwater weirs have the advantage of regulating river flow and ensuring a stable water supply, a problem arises in that sediment, sludge, and various types of sediment continuously accumulate on the upstream bottom along with the river water during the process of closing the sluice gates to store water. Although some of this sediment may be discharged downstream when the sluice gates are opened, a significant amount of sediment remains on the upstream bottom, causing problems that reduce the river's water flow capacity and decrease the storage space.

[0005] Furthermore, the long-term accumulation of sediment can cause water quality deterioration and adversely affect the aquatic ecosystem by inducing problems such as foul odors resulting from the decomposition of organic matter, the proliferation of green algae and algae, and a decrease in dissolved oxygen. Consequently, separate dredging operations are required to remove sediment, but this presents the problem of requiring significant manpower and costs.

[0006] Furthermore, conventional underwater weirs are designed primarily with an emphasis on water storage functions, lacking structures to actively improve river water quality, and there is a shortage of eco-friendly water quality improvement structures capable of continuously purifying water while responding to changes in water level.

[0007] Therefore, there is a need to develop an eco-friendly underwater weir structure that can improve water quality while maintaining the river's water storage function, and easily discharge sediment accumulated upstream. Prior art literature

[0009] Republic of Korea Registered Patent No. 10-0576063 (Registration Date: April 26, 2006) Republic of Korea Registered Patent No. 10-2117123 (Registration Date: May 25, 2020) The problem to be solved

[0010] The present invention was created to solve the problems of the prior art described above, and aims to provide an eco-friendly river weir capable of continuously purifying river water quality by equipping the weir with a purification vegetation module and an overflow aeration induction unit.

[0011] In addition, another objective of the present invention is to provide an eco-friendly river weir capable of purifying river water quality, which facilitates the removal of sediment and improves the maintainability of the weir by having a sediment discharge structure capable of selectively discharging sediment accumulated on the riverbed. means of solving the problem

[0013] To achieve the above objectives, an eco-friendly river underwater weir capable of purifying river water quality according to one aspect of the present invention comprises: a weir structure including a weir foundation installed along the width direction of the river and a vertical weir body cast vertically in the weir foundation to store river water; at least one overflow aeration inducing part formed in a stepped manner to aerate the overflowing water, provided along the length direction of the vertical weir body so as to have a height lower than the height of the vertical weir body for water overflow; a purification vegetation module provided to be floatable on the water-retaining side of the weir structure to purify water quality; a vegetation module guide part fixed to the weir foundation to be located on the water-retaining side of the weir structure and coupled to the purification vegetation module so as to be vertically movable to guide the floating of the purification vegetation module according to the river water level; and a sediment discharge hole part formed in the weir foundation to discharge sediment accumulated on the water-retaining side of the weir structure to the downstream side of the weir structure.

[0014] In addition, the vegetation module guide portion of the present invention is characterized by being formed in a hollow shape and coupled to the inlet side of the sediment discharge hole portion to selectively open and close the sediment discharge hole portion.

[0015] In addition, the purification vegetation module of the present invention is characterized by comprising: a stainless steel mesh portion having a guide rim movably inserted into the vegetation module guide portion in the central portion; a vegetation mat portion coupled to the stainless steel mesh portion for the vegetation of aquatic plants; and a floating body formed of high-density polyethylene and coupled along the edge portion of the stainless steel mesh portion.

[0016] In addition, the vegetation module guide part of the present invention is characterized by comprising: a guide pipe part inserted into the guide rim; a base pipe part formed to expand from the lower end of the guide pipe part and coupled to cover the inlet side, with a sediment discharge port formed at the lower end communicating with the inlet side; and a sediment discharge opening / closing part rotatably provided inside the vegetation module guide part and selectively opening / closing the sediment discharge port while moving up and down through rotation.

[0017] In addition, the sediment discharge opening / closing member of the present invention is characterized by comprising: a nut member coupled to the upper end of the guide pipe member; a lifting shaft member having a threaded portion formed at its upper end and rotatably coupled to the nut member, and movably inserted into the guide pipe member and the base pipe member; an opening / closing opening provided at the lower end of the lifting shaft member to selectively seal or open the inlet side; and a handle portion provided at the upper end of the lifting shaft member.

[0018] In addition, the opening and closing port in the present invention is characterized by being formed with a height higher than the opening height of the sediment discharge port, thereby sealing the sediment discharge port in a closed state to prevent sediment from flowing into the interior of the base pipe section. Effects of the invention

[0020] As explained above, the eco-friendly river underwater weir capable of purifying river water quality according to one aspect of the present invention, unlike conventional technology, can remove nutrients and pollutants contained in river water through a purification vegetation module, thereby having the effect of continuously improving the water quality of the river.

[0021] In addition, according to one aspect of the present invention, an eco-friendly river weir capable of purifying river water quality can increase the amount of dissolved oxygen by mixing air into the overflowing water through an overflow aeration induction section, thereby having the effect of improving water quality and promoting the revitalization of the aquatic ecosystem.

[0022] In addition, according to one aspect of the present invention, an eco-friendly river weir capable of purifying river water quality is configured such that a purification vegetation module is configured to move up and down along a vegetation module guide section in response to changes in water level, thereby having the effect of maintaining a stable water quality purification function even under various water level conditions.

[0023] In addition, according to one aspect of the present invention, an eco-friendly river weir capable of purifying river water quality can selectively discharge sediment accumulated on the freshwater side through a sediment discharge hole and a sediment discharge opening / closing part, thereby preventing sediment accumulation and reducing dredging costs.

[0024] In addition, according to one aspect of the present invention, an eco-friendly river underwater weir capable of purifying river water quality has the effect of simplifying the structure and improving constructability and maintainability by having the vegetation module guide section simultaneously perform the lifting and lowering guide function of the purification vegetation module and the sediment discharge function. Brief explanation of the drawing

[0026] FIG. 1 is a schematic diagram illustrating an eco-friendly river weir capable of purifying river water quality according to one embodiment of the present invention. FIG. 2 is a side view illustrating an eco-friendly river weir capable of purifying river water quality according to one embodiment of the present invention. FIG. 3 is a schematic diagram illustrating an overflow aeration induction section according to one embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a purification vegetation module and a vegetation module guide part according to an embodiment of the present invention. FIG. 5 is an operational state diagram for explaining a purification vegetation module and a vegetation module guide part according to an embodiment of the present invention. FIG. 6 is a perspective view illustrating a vegetation module guide section according to one embodiment of the present invention. Specific details for implementing the invention

[0027] Hereinafter, a preferred embodiment of an eco-friendly river weir capable of purifying river water quality according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0028] Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0029] Furthermore, the terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Terms such as "first," "second," etc., may be used to describe various components, but the components should not be limited by these terms. These terms are used solely for the purpose of distinguishing one component from another.

[0030] FIG. 1 is a schematic diagram illustrating an eco-friendly river underwater weir capable of purifying river water quality according to one embodiment of the present invention, FIG. 2 is a side view illustrating an eco-friendly river underwater weir capable of purifying river water quality according to one embodiment of the present invention, and FIG. 3 is a schematic diagram illustrating an overflow aeration induction section according to one embodiment of the present invention.

[0031] In addition, FIG. 4 is a cross-sectional view for explaining a purification vegetation module and a vegetation module guide part according to an embodiment of the present invention, FIG. 5 is an operational state diagram for explaining a purification vegetation module and a vegetation module guide part according to an embodiment of the present invention, and FIG. 6 is a perspective view for explaining a vegetation module guide part according to an embodiment of the present invention.

[0032] Referring to FIGS. 1 to 6, an eco-friendly river water purification weir (100) according to one embodiment of the present invention may largely include a weir structure (110), an overflow aeration induction section (120), a purification vegetation module (130), a vegetation module guide section (140), and a sediment discharge hole section (150).

[0033] The eco-friendly river weir (100) capable of purifying river water quality according to this embodiment can stably secure agricultural water, domestic water, or industrial water by storing river water, and at the same time, improve the water quality of the river water using a purification vegetation module (130) and selectively discharge sediment accumulated on the river bottom through a sediment discharge hole (150).

[0034] The weir structure (110) according to the present embodiment is configured to be installed along the width direction of the river to store river water. Such a weir structure (110) may include a weir foundation (111) and a vertical weir body (113).

[0035] The weir foundation (111) is installed by pouring concrete onto the riverbed to support the entire underwater weir. This weir foundation (111) can be formed of a reinforced concrete structure or a steel structure and can be provided to stably support the water pressure and earth pressure of the river water. Additionally, a sediment discharge hole (150) can be formed through the weir foundation (111) to discharge sediment accumulated on the freshwater side of the weir structure (110) to the downstream side.

[0036] The vertical weir body (113) is formed vertically on the upper part of the weir foundation (111) and is configured to store river water. This vertical weir body (113) can be extended along the width direction of the river, and a water storage section can be formed on the upstream side and a discharge section can be formed on the downstream side.

[0037] Additionally, a loss-prevention side wall (115) covering both sides of the purification vegetation module (130) may be formed along the longitudinal direction of the vertical beam body (113), and an overflow aeration induction section (120) may be installed at both ends in the longitudinal direction. The loss-prevention side wall (115) prevents the purification vegetation module (130) from rotating or being lost due to the flow velocity, etc.

[0038] Accordingly, the weir structure (110) can stably secure water by storing river water above a certain level and can perform the function of regulating the flow rate of the river.

[0039] The overflow aeration induction unit (120) according to the present embodiment is configured to improve water quality by mixing air into the river water overflowing the vertical weir body (113).

[0040] Such overflow aeration induction sections (120) can be installed at each end in the longitudinal direction of the vertical weir body (113) and can be formed to have a height lower than the height of the vertical weir body (113). Accordingly, when the water level of the river water stored in the freshwater section rises above a certain height, the river water can be naturally discharged downstream through the overflow aeration induction sections (120).

[0041] In particular, the overflow aeration induction section (120) may be formed in a stepped structure so that air can be mixed into the overflowing river water. For example, the overflow aeration induction section (120) may be formed to include a plurality of steps that gradually decrease in height from the upstream side to the downstream side.

[0042] Specifically, the overflow aeration induction section (120) can be formed such that the first aeration section (121), the second aeration section (123), and the third aeration section (125) are sequentially arranged in a stepped manner. Accordingly, the river water falls stepwise from the first aeration section (121) through the second aeration section (123) to the third aeration section (125), thereby increasing the surface area in contact with air.

[0043] Additionally, a block installation space (129) may be formed in each of the first aeration section (121), the second aeration section (123), and the third aeration section (125) to insert and install a porous aeration block (127) for improving aeration efficiency. This porous aeration block (127) is equipped with a plurality of fine pores to increase the surface area of ​​contact with air as the river water passes through, thereby allowing the amount of dissolved oxygen in the river water to be increased more effectively.

[0044] In addition, microorganisms can inhabit the surface of the porous aeration block (127), thereby promoting the decomposition of organic matter contained in river water and improving water quality purification efficiency.

[0045] Meanwhile, in each of the first aeration section (121), the second aeration section (123), and the third aeration section (125), a foreign matter discharge hole section (129a) extending outward from the lower surface of the block installation space section (129) may be formed through. At this time, the foreign matter discharge hole section (129a) may be formed in a roughly 'L' shape and may be provided to allow soil, fallen leaves, and various floating foreign substances flowing in with river water to be discharged to the outside.

[0046] Additionally, the end portion of the foreign substance discharge hole (129a) may be formed with a downward slope. Accordingly, the discharge of foreign substances can be smoothly carried out by gravity, and foreign substances can be prevented from accumulating for a long period inside the block installation space (129).

[0047] Therefore, the overflow aeration induction section (120) can maintain continuous aeration performance by preventing clogging of the porous aeration block (127) as well as aeration of river water, and can improve the water quality improvement effect of the river water.

[0048] In this way, as the river water falls stepwise along the overflow aeration induction section (120), air can be naturally mixed in, and the amount of dissolved oxygen in the river water can be increased. In addition, the decomposition of organic matter contained in the river water can be promoted, and the occurrence of algae and odors can be reduced, thereby enhancing the water quality improvement effect.

[0049] In addition, the overflow aeration induction section (120) can gradually disperse the drop energy that may occur as river water overflows the vertical weir body (113), thereby preventing scouring of the riverbed downstream.

[0050] In addition, the structural stability of the underwater weir can be improved by stably discharging river water even when the inflow rate increases, such as during the flood season or rainy season, through the overflow aeration induction section (120) installed at each end of the vertical weir body (113).

[0051] The purification vegetation module (130) according to the present embodiment is configured to purify river water while floating on the water surface on the freshwater side of the weir structure (110).

[0052] This purification vegetation module (130) may include a stainless steel mesh part (131), a vegetation mat part (133), and a floating body (135).

[0053] The stainless steel mesh portion (131) can be formed in the shape of a metal mesh to provide a skeletal structure that supports the vegetation mat portion (133). Additionally, a guide rim (131a) that is movably coupled to the vegetation module guide portion (140), which will be described later, can be formed in the central portion of the stainless steel mesh portion (131).

[0054] The vegetation mat section (133) is a configuration provided to be combined with the stainless steel mesh section (131) so that aquatic plants can be planted. For example, aquatic plants such as reeds, cattails, irises, and water sedges can be planted, and can improve water quality by absorbing nitrogen, phosphorus, and organic matter contained in river water.

[0055] A floating body (135) may be attached along the edge of the stainless steel mesh portion (131) to allow the purification vegetation module (130) to float stably on the water surface. This floating body (135) may be formed of high-density polyethylene material and may provide sufficient buoyancy to support the load of the vegetation mat portion (133) and aquatic plants.

[0056] Accordingly, the purification vegetation module (130) can continuously remove pollutants contained in river water and improve the aquatic ecosystem.

[0057] The vegetation module guide part (140) according to the present embodiment is configured to guide the lifting and lowering of the purification vegetation module (130) and simultaneously provide a sediment discharge structure.

[0058] This vegetation module guide section (140) may include a guide pipe section (141), a base pipe section (143), and a sediment discharge opening / closing section (145).

[0059] The guide pipe section (141) is installed vertically on the beam foundation section (111), and the guide rim (131a) of the purification vegetation module (130) is inserted to guide the up and down movement.

[0060] Accordingly, the purification vegetation module (130) can stably move up and down along the guide pipe section (141) even when the river water level rises or falls, so it can always be located near the water surface and perform an efficient water purification function.

[0061] The base pipe section (143) can be formed by extending from the bottom of the guide pipe section (141) and combined to cover the inlet side of the sediment discharge hole section (150).

[0062] Additionally, a sediment discharge port (143a) communicating with a sediment discharge hole (150) may be formed at the lower end of the base pipe section (143), and a fixing flange (143b) fixed to the beam foundation section (111) may be formed at the lower end.

[0063] Additionally, a sediment discharge port (143a) communicating with a sediment discharge hole (150) may be formed at the lower end of the base pipe section (143), and a fixing flange (143b) for fixing to the beam foundation section (111) may be formed at the lower end. This fixing flange (143b) can be firmly fixed to the beam foundation section (111) by fastening a bolt or an anchor member.

[0064] The sediment discharge opening / closing part (145) according to the present embodiment is rotatably provided inside the vegetation module guide part (140) and is configured to selectively open / close the sediment discharge port (143a).

[0065] This sediment discharge opening / closing part (145) may include a nut member (145a), a lifting shaft member (145b), an opening / closing opening (145c), and a handle part (145d).

[0066] The nut member (145a) can be fixedly installed on the upper part of the guide pipe section (141).

[0067] The lifting shaft member (145b) has a threaded portion formed at its upper end and is screw-coupled to the nut member (145a), and can be movably inserted into the guide pipe portion (141) and the base pipe portion (143). The lifting shaft member (145b) may have a threaded portion formed at its upper end to enable lifting through rotation.

[0068] The opening / closing member (145c) may be installed to be vertically movable inside the base pipe section (143) so as to be coupled to the lower end of the lifting shaft member (145b) to selectively open or close the sediment discharge port (143a) and the sediment discharge hole section (150). At this time, the opening / closing member (145c) may have a rounded section (145c') formed at its lower end to further improve the sealing performance of the sediment discharge hole section (150).

[0069] Additionally, since the opening (145c) can be formed higher than the opening height of the sediment discharge port (143a) of the base pipe section (143), the sediment discharge port (143a) can be completely blocked in a closed state to prevent sediment from flowing into the base pipe section (143).

[0070] A handle portion (145d) may be provided at the upper end of the lifting shaft member (145b) to allow a worker to rotate the lifting shaft member (145b).

[0071] Accordingly, when the operator rotates the handle portion (145d), the lifting shaft member (145b) moves up and down, causing the opening / closing port (145c) to move up and down, and the sediment discharge port (143a) can be selectively opened or closed.

[0072] Meanwhile, when the river water level drops, the purification vegetation module (130) can descend together with the guide rim (131a) as it moves downward along the guide pipe section (141). At this time, the central or lower surface of the stainless steel mesh section (131) can be supported by contacting the upper surface of the base pipe section (143), thereby preventing the purification vegetation module (130) from descending excessively below a certain height.

[0073] Accordingly, the purification vegetation module (130) can not only move up and down stably in response to changes in water level, but also prevent direct contact with the bottom surface of the weir structure (110) or sediment even during dry periods or when the water level is lowered. In addition, by preventing the purification vegetation module (130) from tilting or overturning, the growth environment for aquatic plants can be maintained stably, and a continuous water purification function can be performed.

[0074] The sediment discharge hole (150) according to the present embodiment is configured to discharge soil, sludge, and various sediments accumulated on the freshwater side of the weir structure (110) to the downstream side.

[0075] These sediment discharge holes (150) can be formed to penetrate the foundation of the weir (111) and can be provided to connect the freshwater side and the downstream side.

[0076] In particular, the sediment discharge opening / closing section (145) may be formed with an inlet side (151) inclined so that the sealing by the opening / closing port (145c) can be tightly achieved. Through this, when the opening / closing port (145c) of the sediment discharge opening / closing section (145) rises to open the sediment discharge port (143a), the sediment accumulated on the freshwater side can be discharged downstream through the sediment discharge hole section (150) by water pressure.

[0077] Accordingly, the sediment discharge hole (150) can efficiently remove sediment that accumulates in the freshwater section for a long period of time and can be provided to maintain the water flow capacity and water storage capacity of the river.

[0078] The operation and function of an eco-friendly river weir (100) capable of purifying river water quality according to one embodiment of the present invention configured as above will be explained.

[0079] First, the river water flowing into the river can be stored on the water side by the vertical weir body (113) of the weir structure (110). Accordingly, a certain level of water can be stably secured for use as agricultural water, domestic water, or industrial water.

[0080] In this process, a purification vegetation module (130) may be placed floating on the water surface on the freshwater side. Aquatic plants planted in the purification vegetation module (130) absorb nitrogen, phosphorus, and various organic substances contained in the river water, thereby suppressing eutrophication of the river water and continuously improving water quality.

[0081] Additionally, when the water level of the river rises or falls, the purification vegetation module (130) can move up and down along the guide pipe section (141) of the vegetation module guide section (140). Therefore, the purification vegetation module (130) can always be located near the water surface regardless of changes in the water level and perform a stable water quality purification function.

[0082] In particular, when the water level drops significantly, such as during a dry season, the stainless steel mesh portion (131) of the purification vegetation module (130) can be supported on the upper surface of the base pipe portion (143), thereby preventing the purification vegetation module (130) from descending excessively or coming into contact with the riverbed or sediment. Accordingly, tilting or overturning of the purification vegetation module (130) can be prevented, and the growth environment for aquatic plants can be maintained stably.

[0083] Meanwhile, when the water level on the freshwater side rises above the height of the overflow aeration induction section (120), the river water can be discharged downstream along the overflow aeration induction section (120). At this time, the river water falls stepwise along the first aeration section (121), the second aeration section (123), and the third aeration section (125), and air can be naturally mixed in during the falling process.

[0084] In addition, as the river water passes through or comes into contact with the porous aeration block (127), the surface area in contact with air can be increased, thereby effectively increasing the amount of dissolved oxygen. Furthermore, microorganisms inhabiting the surface of the porous aeration block (127) can decompose organic matter contained in the river water, thus further enhancing the water purification effect.

[0085] In addition, soil, fallen leaves, and various floating foreign substances can be discharged to the outside through the foreign substance discharge hole (129a) formed in the overflow aeration induction section (120), thereby preventing clogging of the porous aeration block (127) and maintaining stable aeration performance even during long-term use.

[0086] Meanwhile, soil, sludge, and various sediments that have flowed in with river water for a long period of time may accumulate on the bottom of the freshwater side. At this time, the operator can rotate the handle part (145d) to raise the lifting shaft member (145b) of the sediment discharge opening / closing part (145), and accordingly, as the opening / closing part (145c) rises, the sediment discharge port (143a) and the sediment discharge hole part (150) can be opened.

[0087] Accordingly, sediment accumulated on the freshwater side can be discharged downstream along the sediment discharge hole (150) by water pressure and water level difference. Conversely, after the discharge of sediment is completed, the sediment discharge port (143a) can be sealed by rotating the handle (145d) in the opposite direction to lower the opening / closing port (145c).

[0088] In particular, the opening (145c) is formed to have a greater height than the sediment discharge port (143a), so the sediment discharge port (143a) can be stably sealed and sediment can be prevented from flowing into the base pipe section (143).

[0089] Accordingly, the eco-friendly river weir (100) capable of purifying river water quality according to the present invention can simultaneously perform the functions of water storage, water purification, and aeration, and can easily remove sediment accumulated on the fresh water side, thereby improving maintainability and continuously improving the river environment.

[0090] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0091] Therefore, the true technical scope of protection of the present invention should be determined by the patent claims. Explanation of the symbols

[0093] 100: Eco-friendly underwater river weir capable of purifying river water quality 110 : Beam structure 111 : Beam foundation 113: Vertical beam main body 115: Loss prevention side wall 120: Overflow aeration induction section 121: First aeration section 123 : 2nd Aeration Section 125 : 3rd Aeration Section 127 : Porous aeration block 129 : Block installation space 129a: Foreign matter discharge hole 130: Purification vegetation module 131: Stainless steel mesh part 131a: Guide rim 133 : Vegetation mat section 135 : Floating body 140: Vegetation module guide section 141: Guide pipe section 143: Base pipe section 143a: Sediment discharge port 143b : Fixed flange 145 : Sediment discharge opening / closing part 145a : Nut member 145b : Lifting shaft member 145c : Opening / closing opening 145c' : Rounded section 145d: Handle part 150: Sediment discharge hole part 151 : Entrance side

Claims

Claim 1 A weir installed in a river to store river water, comprising: a weir structure including a weir foundation installed along the width direction of the river and a vertical weir body cast vertically into the weir foundation to store river water; at least one overflow aeration inducing section formed in a stepped manner to aerate the overflowing water, having a height lower than that of the vertical weir body to facilitate water overflow; a purification vegetation module provided to be floatable on the water-retaining side of the weir structure to purify water quality; and a vegetation module guide section fixed to the weir foundation so as to be located on the water-retaining side of the weir structure, to which the purification vegetation module is connected so as to be vertically movable to guide the floating of the purification vegetation module according to the river water level. An eco-friendly river underwater weir capable of purifying river water quality, comprising: a sediment discharge hole formed in the foundation of the weir structure to discharge sediment accumulated on the freshwater side of the weir structure to the downstream side of the weir structure; wherein the vegetation module guide is formed in a hollow shape and coupled to the inlet side of the sediment discharge hole to selectively open and close the sediment discharge hole. Claim 2 In claim 1, the purification vegetation module comprises: a stainless steel mesh portion having a guide rim movably inserted into the vegetation module guide portion in the central part; a vegetation mat portion coupled to the stainless steel mesh portion for vegetation of aquatic plants; and a floating body formed of high-density polyethylene and coupled along the edge portion of the stainless steel mesh portion; wherein the vegetation module guide portion comprises: a guide pipe portion inserted into the guide rim; a base pipe portion formed to extend from the lower end of the guide pipe portion and coupled to cover the inlet side, with a sediment discharge port formed at the lower end communicating with the inlet side; and a sediment discharge opening / closing portion rotatably provided inside the vegetation module guide portion and selectively opening / closing the sediment discharge port while moving up and down through rotation; characterized in that it is an eco-friendly river underwater weir capable of purifying river water quality. Claim 3 In claim 2, the sediment discharge opening / closing part comprises: a nut member coupled to the upper end of the guide pipe part; a lifting shaft member having a threaded portion formed at its upper end and rotatably coupled to the nut part, and movably inserted into the guide pipe part and the base pipe part; an opening / closing opening provided at the lower end of the lifting shaft member to selectively seal or open the inlet side; and a handle portion provided at the upper end of the lifting shaft member; characterized in that it is an eco-friendly river underwater weir capable of purifying river water quality. Claim 4 An eco-friendly river underwater weir capable of purifying river water quality, characterized in that, in claim 3, the opening and closing port is formed with a height higher than the opening height of the sediment discharge port, thereby sealing the sediment discharge port in a closed state to prevent sediment from flowing into the interior of the base pipe section.

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