Multifunctional ditch retaining dam with functions of water retention, purification and regulation and storage

Abstract

The utility model discloses a multifunctional ditch retaining dam with water retention, purification and regulation and storage functions, which comprises a drop edge, a filter channel and a fixed dam body, the fixed dam body is arranged at the bottom of a ditch, and the drop edge is arranged behind the fixed dam body; a sand flushing and draining hole is formed in the bottom of the fixed dam body and is provided with a water stop plug; the filtering channel is arranged above the fixed dam body; a flood discharge channel is formed from the top face of the filtering channel to the top face of the ditch. The fixed dam body is arranged at the bottom, and the fixed dam body height can ensure that the ditch bottom can always keep a certain water level, so that the ditch water landscape is ensured; a sand flushing and draining hole is formed in the bottom of the middle of the fixed dam body, and when upstream sand accumulation is serious or draining treatment needs to be carried out, sand flushing and draining operation can be carried out by opening a water stop plug; the percolation dam body arranged on the fixed dam body can purify runoff generated by conventional rainfall or runoff at the front end of rainstorm to a certain degree, and the risk that pollutants are discharged to the downstream is reduced; the flood discharge channel at the upper end can quickly discharge flood in the middle and later periods of rainstorm.

Description

Technical Field

[0001] The utility model relates to the technical field of dams, and in particular to a multifunctional ditch water retaining dam with the functions of water conservation, purification and storage. Background Art

[0002] Torrential rains cause waterlogging, overflowing rivers and lakes, pipe bursts, and flooded farmland, posing serious threats and losses to people's lives and property. A water retention dam is a type of embankment used to intercept water flows. It is primarily used to store and regulate water resources, prevent and mitigate floods, provide irrigation water, and maintain river ecosystems. Existing water retention dams have limited structural functions and are unable to filter or purify runoff during regular rainfall or in the early stages of floods. Pollutants are easily discharged downstream, and there is no effective flood discharge management during flood season. When excessive sand and gravel accumulate in ditches, they are difficult to remove and accumulate at the bottom of the dam. Utility Model Content

[0003] In view of the defects of the above-mentioned existing technologies, the technical problem to be solved by the present invention is to provide a multifunctional ditch water dam with the functions of water conservation, purification and storage, which can realize water conservation in the dry season, runoff purification in the rainy season and flood storage.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a multifunctional ditch water retaining dam with the functions of water conservation, purification and storage, comprising a waterfall, a filter channel and a fixed dam body, the fixed dam body being arranged at the bottom of the ditch, and the waterfall being arranged behind the fixed dam body; a sand flushing and drainage hole is opened at the bottom of the fixed dam body and the sand flushing and drainage hole is equipped with a water stop plug; the filter channel comprises at least two permeable purification materials arranged along the runoff flow direction, and the filter channel is arranged above the fixed dam body; the overall height of the filter channel and the fixed dam body is less than the ditch depth, and the area from the top surface of the filter channel to the top surface of the ditch is a flood discharge channel.

[0005] Preferably, the filtration channel includes three filtration layers arranged along the runoff flow direction, each layer adopts different permeability purification materials, and multiple filtration reduces the risk of pollutants being discharged downward.

[0006] Preferably, the sand flushing and drainage hole is arranged at a central position of the bottom of the fixed dam body.

[0007] Preferably, the thickness of the filtration channel is equal to the thickness of the fixed dam body.

[0008] Preferably, the waterfall is arranged behind the fixed dam body and is flush with the height of the fixed dam body, which produces a waterfall oxygenation effect on the filtered runoff, thereby reducing the risk of water quality deterioration downstream.

[0009] Beneficial effects of the utility model:

[0010] 1) The bottom is a fixed dam body, and the height of the fixed dam body can ensure that the water level at the bottom of the ditch can always be maintained at a certain level, ensuring the ditch waterscape;

[0011] 2) A sand flushing and drainage hole is set at the middle bottom of the fixed dam body. When the upstream sand accumulation is serious or drainage is needed, the sand flushing and drainage operation can be carried out by opening the water stop plug;

[0012] 3) The infiltration dam body set up in a fixed dam body can purify the runoff generated by normal rainfall or the front runoff of rainstorm to a certain extent by filling it with purification materials of different permeabilities, thereby reducing the risk of pollutants being discharged downstream;

[0013] 4) The upper flood discharge channel can quickly drain floodwaters in the middle and late stages of heavy rain, ensuring the safety of the channel;

[0014] 5) The waterfall can provide oxygenation to the filtered runoff, thereby reducing the risk of water quality deterioration downstream. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of the utility model;

[0016] Figure 2 for Figure 1 AA cross-sectional view;

[0017] Figure 3 for Figure 1 BB cross-sectional view;

[0018] In the figure: 1-waterfall edge, 2-filtration channel, 3-water stopper, 4-fixed dam body, 5-sand flushing and drainage hole. DETAILED DESCRIPTION

[0019] In order to better understand the improvements made by the present invention relative to the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] like Figure 1 As shown in FIG3 , a multifunctional ditch water retaining dam with the functions of water conservation, purification and storage is mainly composed of a filtering channel 2 and a fixed dam body 4, wherein the fixed dam body 4 is arranged at the bottom of the ditch. It is suitable for ditch sections with wide ditches, relatively gentle water flow, and the need to maintain a certain depth of water level for a long time. It is especially suitable for some ditch sections with hydrophilic functional characteristics.

[0021] The filter channel 2 uses at least two types of permeable purification materials arranged along the direction of runoff. The filter channel 2 is preferably composed of three filter layers arranged along the direction of runoff, and each layer uses different permeable purification materials. By filling the filter channel 2 with different permeable purification materials, it can purify the runoff generated by regular rainfall or the runoff at the front end of a rainstorm to a certain extent, thereby reducing the risk of pollutants being discharged downstream. The filter channel 2 is arranged above the fixed dam body 4. The thickness of the filter channel 2 is equal to the thickness of the fixed dam body 4, and the overall height of the filter channel 2 and the fixed dam body 4 is less than the depth of the ditch. The area from the top surface of the filter channel 2 to the top surface of the ditch is a flood discharge channel. The flood discharge channel can quickly remove floodwaters in the middle and late stages of a rainstorm to ensure the safety of the ditch.

[0022] A sand flushing and drainage hole 5 is provided at the bottom of the fixed dam body 4 and is equipped with a water stopper 3. The sand flushing and drainage hole 5 is preferably located in the center of the bottom of the fixed dam body 4. When there is severe sand accumulation upstream or drainage is required, the water stopper 3 can be opened to perform sand flushing and drainage operations, thereby preventing excessive sand from accumulating at the bottom of the fixed dam body 4 and affecting the safety and stability of the fixed dam body 4. A water drop 1 is also provided at the rear of the fixed dam body 4. The water drop 1 is arranged at the rear of the fixed dam body 4 and is flush with the height of the fixed dam body 4. It can produce a water drop and oxygenate the filtered runoff, thereby reducing the risk of water quality deterioration downstream.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional ditch water retaining dam with the functions of water conservation, purification and storage, characterized by: The invention comprises a water drop edge (1), a filter channel (2) and a fixed dam body (4); the fixed dam body (4) is arranged at the bottom of the ditch, and the water drop edge (1) is arranged behind the fixed dam body (4); a sand flushing and drainage hole (5) is opened at the bottom of the fixed dam body (4), and the sand flushing and drainage hole (5) is equipped with a water stopper (3); the filter channel (2) comprises at least two permeable purification materials arranged along the runoff flow direction, and the filter channel (2) is arranged above the fixed dam body (4); the overall height of the filter channel (2) and the fixed dam body (4) is less than the ditch depth, and the area from the top surface of the filter channel (2) to the top surface of the ditch serves as a flood discharge channel.

2. The multifunctional ditch water retaining dam with water conservation, purification and storage functions according to claim 1, characterized in that: The filter channel (2) comprises three filter layers arranged along the flow direction, each layer using different permeability purification materials.

3. The multifunctional ditch water retaining dam with water conservation, purification and storage functions according to claim 1, characterized in that: The sand flushing and drainage hole (5) is arranged at a central position of the bottom of the fixed dam body (4).

4. The multifunctional ditch water retaining dam with water conservation, purification and storage functions according to claim 1, characterized in that: The thickness of the filtering channel (2) is equal to the thickness of the fixed dam body (4).

5. The multifunctional ditch water retaining dam with water conservation, purification and storage functions according to claim 1, characterized in that: The waterfall edge (1) is arranged behind the fixed dam body (4) and is flush with the fixed dam body (4).

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