A sloping wetland in the riparian zone and its construction method

Abstract

The present invention relates to the technical field of riparian wetlands, and specifically discloses a slope-type wetland for a riparian zone and a construction method thereof, including a slope wetland body; a first inclined portion, a horizontal portion, and a second inclined portion are sequentially arranged on one side of the slope wetland body close to the riverbank; a first planting layer is arranged on the first inclined portion; a first protective grille is arranged outside the first planting layer; a first anchor rod is arranged on the first protective grille; a second planting layer is arranged on the second inclined portion; a second protective grille is arranged outside the second planting layer; a second anchor rod is arranged on the second protective grille; a water body filtering mechanism capable of treating the water body flowing down the surface of the first inclined portion is arranged on the horizontal portion; the slope surface is protected by planting slope protection plants and utilizing the anchoring effect of plant roots, and the slope running water is filtered by the water body filtering mechanism, so that sewage is not likely to cause great pollution to the river channel ecology.

Description

Technical Field

[0001] The present invention relates to the technical field of riverbank wetlands, and particularly to a slope-type wetland in a riverbank zone and a construction method thereof. Background Art

[0002] As an important part of a river channel, the riverbank directly affects urban landscape planning and ecological environment construction. To ensure the ecological environment of the river channel and reduce the phenomenon of eutrophication of river water bodies, when constructing the riverbank, emphasis should be placed on the stability of the riverbank structure, reducing the occurrence of soil erosion on the riverbank, and thus improving the ecological environment of the river channel. Therefore, it is necessary to protect the riverbank slope to improve the stability of the riverbank structure.

[0003] In the prior art, when protecting the slope of a riverbank wetland, most often a cast-in-place concrete method is used to form a concrete protection wall on the slope of the riverbank wetland. Although the concrete protection wall protection form plays a certain role in maintaining the stability of the bank slope and preventing soil erosion, it cuts off the connection between the water ecosystem and the terrestrial ecosystem, destroys various ecological processes of the river, leads to a reduction in the self-purification and self-recovery abilities of the river, and causes serious pollution of the river water body. Summary of the Invention

[0004] The present application provides a slope-type wetland in a riverbank zone, which realizes the protection of the slope surface by using the anchoring effect of plant roots, improves the vitality of the river channel ecosystem on the premise of ensuring the stability of the slope protection structure, and reduces the negative impact of the slope protection form using a concrete protection wall on the river channel ecological environment.

[0005] A slope-type wetland in a riverbank zone and a construction method thereof provided by the present application adopt the following technical solutions:

[0006] A slope-type wetland in a riverbank zone includes a slope wetland body arranged on one side of a river channel; on the side of the slope wetland body close to the riverbank, there are successively arranged a first inclined part, a horizontal part, and a second inclined part; a first planting layer for planting plants is arranged on the first inclined part; a first protection grid is arranged outside the first planting layer; a first anchor rod is arranged on the first protection grid; the first anchor rod penetrates through the first protection grid and the first planting layer and is nailed inside the slope wetland body; a second planting layer for planting plants is arranged on the second inclined part; a second protection grid is arranged outside the second planting layer; a second anchor rod is arranged on the second protection grid; the second anchor rod penetrates through the second protection grid and the second planting layer and is nailed inside the slope wetland body; a water body filtering mechanism for treating the water flowing down from the surface of the first inclined part is arranged on the horizontal part.

[0007] By adopting the above technical solution, slope protection plants are planted on the first planting layer and the second planting layer respectively, and the first planting layer and the second planting layer are anchored by the first protection grid, the first anchor rod, the second protection grid and the second anchor rod respectively, so that the slope protection plants planted on the first planting layer and the second planting layer protect the slope. By planting slope protection plants, the anchoring effect of plant roots is used to achieve the protection of the slope surface, so that the slope protection measures can not only meet the requirements of slope surface stability, but also improve the natural ecological environment. And the water filtering mechanism arranged on the horizontal part filters the slope running water, so that the sewage flowing into the river is not easy to cause great pollution to the river ecosystem.

[0008] Preferably, a groove is provided on the top surface of the horizontal part; the water filtering mechanism includes a treatment box arranged in the groove; a baffle is fixedly connected to the inner side wall of the treatment box; a first opening is provided on the baffle; a first filter screen is fixedly connected to the inner side wall of the first opening; a cushion block located at the top of the baffle is fixedly connected to the inner side wall of the treatment box; a mud retaining box is arranged on the top surface of the cushion block; a drain port is provided on the inner side wall of the bottom end of the mud retaining box; a protection plate is installed on the top surface of the mud retaining box; a water passing port is provided on the top surface of the protection plate; ceramsite filter media located at the bottom of the baffle is placed in the treatment box.

[0009] By adopting the above technical solution, when the sewage on the surface of the first inclined part flows to the protection plate, the sewage enters the mud retaining box through the water passing holes on the protection plate. The protection plate blocks the larger stones mixed in the sewage, so that the crushed stones are not easy to enter the mud retaining box. The sewage in the mud retaining box falls on the surface of the baffle through the drain port, and the mud and slag are blocked on the inner side wall of the bottom end of the mud retaining box when the sewage passes through the drain port; the sewage falling on the baffle is filtered by the first filter screen and then falls into the space filled with ceramsite filler in the treatment box. The ceramsite filler fully filters the impurities in the sewage, thereby realizing the step-by-step treatment of the sewage, so that the sewage is not easy to directly fall into the wetland river and cause pollution to the river.

[0010] Preferably, a motor is installed on the top surface of the protection plate; the output end of the motor is fixedly connected with a first rotating shaft extending into the treatment box; the end of the first rotating shaft away from the motor sequentially penetrates through the protection plate and the inner side wall of the bottom end of the mud retaining box and then extends to the bottom of the mud retaining box. The end of the first rotating shaft extending to the bottom of the mud retaining box is fixedly connected with a first bevel gear; the inner side wall of the treatment box is rotatably connected with a lead screw; a second bevel gear meshing with the first bevel gear is fixedly connected to the outer side wall of the lead screw close to the first bevel gear, and a slide plate in threaded transmission cooperation with the lead screw is sleeved on the outside of the lead screw; a cleaning brush capable of contacting the baffle and the first filter screen is fixedly connected to the bottom surface of the slide plate; a straight rod penetrating through the slide plate is fixedly connected to the inner side wall of the treatment box; the inner side wall of the slide plate is slidably matched with the straight rod.

[0011] By adopting the above technical solution, the starting motor drives the first rotating shaft and the first bevel gear to rotate. Under the meshing cooperation of the first bevel gear and the second bevel gear, the second bevel gear and the lead screw are driven to rotate. During the rotation of the lead screw, the slide plate is driven to slide along the lead screw. The straight rod is arranged to limit the slide plate, making it not easy for the slide plate to rotate. During the sliding process of the slide plate, the cleaning brush is driven to clean the first filter screen on the baffle, so that the mesh holes of the first filter screen are not easily blocked, thereby ensuring the filtering effect of the first filter screen. The cleaning brush reciprocally cleans the first filter screen by driving the first rotating shaft to rotate forward and backward by the motor.

[0012] Preferably, a dredging component for making the drain opening not easily blocked is arranged on the bottom surface of the mud guard box; the dredging component includes a backing plate arranged at the bottom of the mud guard box; the backing plate is fixedly connected to the bottom surface of the mud guard box through a first spring, and a pointed rod that can pass through the drain opening and extend to the top of the drain opening is fixedly connected to the position corresponding to the drain opening on the top surface of the backing plate; a pushing block is fixedly connected to the bottom surface of the backing plate; both side walls in the length direction of the pushing block are inclined surfaces; rounded corners matched with the inclined surfaces are arranged on both side walls along the length direction of the top surface of the slide plate.

[0013] By adopting the above technical solution, when the slide plate slides along the lead screw, the rounded corners on the side wall of the top surface of the slide plate contact the inclined surface of the pushing block and generate an extrusion effect on the pushing block, prompting the extrusion block to slide upward. Thus, the extrusion block drives the backing plate and the pointed rod to move upward, and further enables the top end of the pointed rod to pass through the drain opening to dredge the drain opening, making the drain opening not easily blocked by mud and slag, and ensuring the water passing function of the drain opening.

[0014] Preferably, a limiting plate is fixedly connected to the side wall of the backing plate; a limiting rod penetrating through the limiting plate is fixedly connected to the bottom surface of the mud guard box; a stop block contacting the bottom surface of the limiting plate is fixedly connected to the bottom end of the limiting rod.

[0015] By adopting the above technical solution, the limiting plate is driven to slide along the limiting rod during the sliding process of the backing plate. The cooperation of the limiting rod and the limiting plate plays a limiting role on the backing plate, making it not easy for the backing plate to deviate during vertical movement. The stop block makes it not easy for the backing plate to slide excessively, facilitating the slide plate to squeeze the pushing block to slide upward.

[0016] Preferably, a stirring assembly for stirring ceramsite filler is provided on the inner side wall of the bottom end of the treatment tank; the stirring assembly includes a second rotating shaft and a transmission member that enables the lead screw to drive the second rotating shaft to rotate; the second rotating shaft is rotatably connected to the inner side wall of the bottom end of the treatment tank, and stirring plates are fixedly connected to the outer side wall of the second rotating shaft; the transmission member is arranged on the baffle, and the transmission member includes a third rotating shaft rotatably connected to the baffle; the top end of the third rotating shaft is located above the top of the baffle, and a third bevel gear is fixedly connected to the top end of the third rotating shaft; a fourth bevel gear meshing with the third bevel gear is fixedly connected to the outer side wall of the lead screw close to the third bevel gear; the bottom end of the third rotating shaft extends to the bottom of the baffle, and a first sprocket is fixedly connected to the bottom end of the third rotating shaft; a second sprocket is fixedly connected to the top end of the second rotating shaft; a chain that links the first sprocket and the second sprocket is sleeved outside the first sprocket and the second sprocket.

[0017] By adopting the above technical solution, during the rotation of the lead screw, the fourth bevel gear is driven to rotate. Under the meshing cooperation of the third bevel gear and the fourth bevel gear, the third bevel gear, the third rotating shaft and the first sprocket are driven to rotate. Under the transmission action of the chain, the first sprocket and the second rotating shaft are driven to rotate, so that the stirring plates stir the water body and the ceramsite filler in the treatment tank, prompting the ceramsite filler to fully filter the water body, removing impurities in the water body, and making the water body in the treatment tank less likely to cause significant pollution to the river when discharged into the river.

[0018] Preferably, an overflow pipe is fixedly connected to the side wall of the treatment tank close to the second inclined portion; one end of the overflow pipe is located inside the treatment tank, and the end of the overflow pipe far from the treatment tank passes through the slope wetland body and the second planting layer and then extends outside the second planting layer. A valve is arranged on the end of the overflow pipe extending outside the second planting layer.

[0019] By adopting the above technical solution, when discharging the water body in the treatment tank, the valve on the overflow pipe is opened, so that when the water level inside the treatment tank reaches the position of the overflow pipe, the water body is discharged into the river of the wetland through the overflow pipe.

[0020] Preferably, a protective shell covering the motor is fixedly connected to the top surface of the protective plate; heat dissipation holes are arranged on the side wall of the protective shell close to the river; a second filter screen is fixedly connected to the inner side wall of the heat dissipation holes.

[0021] By adopting the above technical solution, the protective shell arranged on the protective plate is used to protect the motor, making the motor less susceptible to the influence of the external environment. The heat dissipation holes on the protective shell are used for discharging the heat inside the protective shell, so that the temperature inside the protective shell is not likely to be too high. The second filter screen is used to filter impurities in the external environment, so that dust and impurities are not likely to enter the inside of the protective shell.

[0022] Preferably, a threaded hole is provided on the top surface of the cushion block; a first through hole is provided on the bottom surface of the mud guard box at a position corresponding to the threaded hole; a second through hole matching the first through hole is provided on the bottom surface of the protection plate at a position corresponding to the first through hole; and a threaded rod that can pass through the first through hole and the second through hole is threadedly connected to the inner side wall of the threaded hole.

[0023] By adopting the above technical solution, after the mud guard box and the protection plate are installed, the first through hole, the second through hole and the threaded hole are aligned. Then, the threaded rod is passed through the first through hole and the second through hole and threadedly connected to the inner side wall of the threaded hole, so as to realize the installation of the mud guard box and the protection plate in the treatment box.

[0024] A construction method for a sloping wetland in a riparian zone. Based on the above-mentioned sloping wetland in a riparian zone, the construction method includes the following specific steps:

[0025] S1: Lay a first planting layer and a second planting layer on the first inclined part and the second inclined part of the slope wetland body respectively, anchor the first planting layer through a first protection grid and a first anchor rod, anchor the second planting layer through a second protection grid and a second anchor rod, and plant slope protection plants on the first planting layer and the second planting layer;

[0026] S2: Dig grooves at intervals along the length direction of the slope on the horizontal part of the slope wetland body, and arrange a water body filtering mechanism in the grooves;

[0027] S3: Regularly clean the sludge residues in the mud guard box and replace the first filter screen to ensure the sewage treatment effect of the treatment box.

[0028] In summary, the present application has the following beneficial effects:

[0029] 1. By setting a first planting layer and a second planting layer for planting slope protection plants and anchoring the first planting layer and the second planting layer through a first protection grid, a first anchor rod, a second protection grid and a second anchor rod respectively, the slope surface is protected by using the anchoring effect of the plant roots when planting slope protection plants, so that the formed slope wetland environment can improve the ecological environment of the river course, and reduce the defect of poor improvement effect on the river course ecological environment when using a concrete protection wall for protection;

[0030] 2. When sewage enters the mud guard box through the water inlet, the larger gravel blocks mixed in the sewage are blocked outside the protection plate. The sewage that enters the mud guard box flows to the first filter screen through the drain hole on the inner side wall at the bottom of the mud guard box. When the sewage passes through the drain hole, sundries such as broken leaves and mud residues contained in the sewage are blocked inside the mud guard box; and then the impurities in the sewage are filtered by the first filter screen and the ceramsite filler, thereby gradually filtering the sewage, making it difficult for the sewage generated on the slope to be directly discharged into the river and have a greater impact on the river ecosystem;

[0031] 3. When the treatment box filters the sewage, start the motor to drive the first rotating shaft to rotate. Under the cooperation of the first bevel gear and the second bevel gear, the lead screw rotates, so that the slide plate drives the cleaning brush to move. The first filter screen is cleaned by the cleaning brush, so that the mesh holes of the first filter screen are not easily blocked, ensuring the filtering effect of the sewage. When the motor drives the first rotating shaft 31 to rotate forward and backward, the cleaning brush reciprocally cleans the surface of the first filter screen. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of a bank slope type wetland;

[0033] Figure 2 is a schematic structural diagram of the cooperation of the treatment box, the mud guard box and the protection plate in this application;

[0034] Figure 3 is a schematic structural diagram of the overflow pipe in this application;

[0035] Figure 4 is a schematic structural diagram of the installation of the protection plate, the mud guard box and the cushion block in this application;

[0036] Figure 5 is a schematic structural diagram of the cooperation of the motor, the lead screw, the slide plate and the filter screen in this application;

[0037] Figure 6 is a schematic structural diagram of the cooperation of the lead screw and the stirring assembly in this application;

[0038] Figure 7 is a schematic structural diagram of the cooperation of the slide plate, the mud guard box and the dredging assembly in this application;

[0039] Figure 8 is a schematic sectional view of the protective shell in this application.

[0040] Reference numerals: 1, slope wetland body; 11, first inclined part; 111, first planting layer; 112, first protective grid; 113, first anchor rod; 12, horizontal part; 121, groove; 13, second inclined part; 131, second planting layer; 132, second protective grid; 133, second anchor rod; 2, water filtering mechanism; 21, treatment tank; 22, baffle; 221, first opening; 23, first filter screen; 24, cushion block; 241, threaded hole; 242, threaded rod; 25, mud guard box; 251, drain port; 252, first through hole; 26, protective plate; 261, water passing port; 262, second through hole; 27, overflow pipe; 271, valve; 28, protective shell; 281, heat dissipation hole; 282, second filter screen; 3, motor; 31, first rotating shaft; 32, first bevel gear; 33, lead screw; 331, fourth bevel gear; 34, second bevel gear; 35, slide plate; 351, rounded corner; 36, cleaning brush; 37, straight rod; 4, dredging component; 41, backing plate; 42, first spring; 43, pointed rod; 44, pushing block; 441, inclined surface; 45, limiting plate; 46, limiting rod; 47, stop block; 5, stirring component; 51, second rotating shaft; 511, stirring plate; 512, second sprocket; 52, transmission part; 521, third rotating shaft; 522, third bevel gear; 523, first sprocket; 524, chain; 6, intercepting ditch; 7, plant mat retaining wall. Detailed implementation manners

[0041] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0042] The present invention discloses a slope-type wetland in a riparian zone, as Figure 1As shown in the figure, it includes a slope wetland body 1, a first planting layer 111, a second planting layer 131, a first protection grid 112, and a second protection grid 132, which are arranged on one side of the river channel. The slope wetland body 1 is successively provided with a first inclined part 11, a horizontal part 12, and a second inclined part 13 from top to bottom. The first planting layer 111 is laid on the first inclined part 11, and one or several plants such as Buddleja davidii, Geum aleppicum, and Amorpha fruticosa are planted on the first planting layer 111; the first protection grid 112 is arranged outside the first planting layer 111, and a plurality of first anchor rods 113 are arranged on the first protection grid 112. The first anchor rods 113 penetrate through the first protection grid 112 and the first planting layer 111 and are nailed inside the slope wetland body 1; the second planting layer 131 is laid on the second inclined part 13, and one or several plants such as Vetiveria zizanioides, Acorus calamus, Phragmites australis, or Hemarthria compressa are planted on the second planting layer 131; the second protection grid 132 is arranged outside the second planting layer 131, and a plurality of second anchor rods 133 are arranged on the second protection grid 132. The second anchor rods 133 penetrate through the second protection grid 132 and the second planting layer 131 and are nailed inside the slope wetland body 1; a catch ditch 6 is arranged on the top surface of the slope wetland body 1 close to the first inclined part 11, and a plant cushion retaining wall 7 is laid on the bottom surface of the slope wetland body 1 close to the second inclined part 13.

[0043] By setting the first planting layer 111 and the second planting layer 131 to plant slope protection plants and anchoring the first planting layer 111 and the second planting layer 131 respectively through the first protection grid 112, the first anchor rods 113, the second protection grid 132, and the second anchor rods 133, the protection of the slope surface is realized by using the anchoring effect of the plant roots of the planted slope protection plants, so that the formed slope wetland environment can improve the ecological environment of the river channel, reducing the defect of poor improvement effect on the river channel ecological environment when the slope is protected by a concrete retaining wall. The setting of the catch ditch 6 plays a buffering role in the rapid flow of water, improving the impact resistance of the slope wetland body 1. The plant cushion retaining wall 7 has a good soil fixation effect, preventing the slope from sliding.

[0044] As Figure 1 and Figure 2As shown in the figure, a plurality of grooves 121 are arranged at intervals along the length direction of the slope on the top surface of the horizontal part 12. A water body filtering mechanism 2 for treating the water flowing down on the surface of the first inclined part 11 is arranged in each of the plurality of grooves 121. The water body filtering mechanism 2 includes a treatment box 21, a baffle 22, a mud retaining box 25 and a protection plate 26 arranged in the groove 121. The baffle 22 is fixedly connected to the inner side wall of the treatment box 21. A first opening 221 is provided on the baffle 22, and a first filter screen 23 is fixedly connected to the inner side wall of the first opening 221. At the four corners of the inner side wall of the treatment box 21 above the baffle 22, cushion blocks 24 are fixedly connected. The mud retaining box 25 is arranged on the top surface of the cushion block 24. A plurality of drain ports 251 are provided on the inner side wall of the bottom end of the mud retaining box 25, and the drain ports 251 are in the shape of an inverted horn. The protection plate 26 is installed on the top surface of the mud retaining box 25. A plurality of water passing ports 261 are provided on the protection plate 26. Ceramsite fillers are placed on the inner side wall of the bottom end of the treatment box 21.

[0045] The sewage flowing down from the first inclined part 11 enters the mud retaining box 25 through the water passing ports 261. Larger gravel blocks mixed in the sewage are blocked outside the protection plate 26. When the sewage entering the mud retaining box 25 passes through the drain ports 251, sundries such as broken leaves and mud residues contained in the sewage are blocked on the inner side wall of the bottom end of the mud retaining box 25. Then, the sewage flowing onto the first filter screen 23 falls to the position where the ceramsite fillers are located after passing through the filtration treatment of the first filter screen 23. The large particle sand and gravel in the sewage are treated by the first filter screen 23, and the small particle impurities in the sewage are filtered by the ceramsite fillers, so as to realize the layer-by-layer filtration treatment of the sewage.

[0046] As Figure 1 、 Figure 2 and Figure 3 As shown in the figure, a plurality of overflow pipes 27 are fixedly connected to the side wall of the treatment box 21 close to the second inclined part 13. One end of the overflow pipe 27 is located inside the treatment box 21. The end of the overflow pipe 27 located inside the treatment box 21 is in the shape of a funnel with an open end facing upward. The end of the overflow pipe 27 far from the treatment box 21 passes through the slope wetland body 1 and the second planting layer 131 and extends to the outside of the second planting layer 131. A valve 271 is arranged on the end of the overflow pipe 27 extending to the outside of the second planting layer 131.

[0047] When discharging sewage, the valve 271 on the overflow pipe 27 is opened. When the water level of the sewage reaches the open position of the overflow pipe 27, the sewage is discharged into the wetland river through the overflow pipe 27, so that the sewage generated on the slope is not easily directly discharged into the river, which has a greater impact on the river ecology. When the water level does not reach the open position, the sewage is not easily discharged through the overflow pipe 27, so that the sewage can be fully filtered and treated in the treatment box 21.

[0048] As Figure 2 and Figure 4As shown, threaded holes 241 are provided on the top surfaces of the cushion blocks 24; first through holes 252 are provided on the bottom surface of the mudguard box 25 at positions corresponding to the threaded holes 241; second through holes 262 that cooperate with the first through holes 252 are provided on the bottom surface of the protection plate 26 at positions corresponding to the first through holes 252; a threaded rod 242 that can pass through the first through hole 252 and the second through hole 262 is threadedly connected to the inner side wall of the threaded hole 241.

[0049] When the mudguard box 25 and the protection plate 26 are sequentially placed in the treatment box 21, the first through holes 252, the second through holes 262, and the threaded holes 241 at corresponding positions are aligned. After the threaded rod 242 passes through the first through hole 252 and the second through hole 262, it is threadedly connected to the inner side wall of the threaded hole 241, realizing the installation of the mudguard box 25 and the protection plate 26 in the treatment box 21. The installation method is simple and convenient, facilitating the removal of the protection plate 26 and the mudguard box 25.

[0050] As Figure 2 and Figure 5 shown, a motor 3 is installed on the top surface of the protection plate 26; a first rotating shaft 31 is fixedly connected to the output end of the motor 3, and the first rotating shaft 31 sequentially passes through the protection plate 26 and the inner side wall of the bottom end of the mudguard box 25 and extends to the bottom of the mudguard box 25. A first bevel gear 32 is fixedly connected to the end of the first rotating shaft 31 extending to the bottom of the mudguard box 25; a lead screw 33 is rotatably connected to the inner side wall of the treatment box 21; a second bevel gear 34 that meshes with the first bevel gear 32 is fixedly connected to the outer side wall of the lead screw 33 close to the first bevel gear 32. A slide plate 35 that is in threaded transmission cooperation with the lead screw 33 is sleeved on the outside of the lead screw 33; a cleaning brush 36 that can contact the baffle 22 and the first filter screen 23 is fixedly connected to the bottom surface of the slide plate 35; a straight rod 37 that penetrates the slide plate 35 is fixedly connected to the inner side wall of the treatment box 21; the inner side wall of the slide plate 35 is slidably matched with the straight rod 37.

[0051] When filtering and treating sewage, start the motor 3 to drive the first rotating shaft 31 to rotate. Through the cooperation of the first bevel gear 32 and the second bevel gear 34, drive the lead screw 33 to rotate, so that the cleaning brush 36 slides along the lead screw 33 to clean the first filter screen 23, thereby making the mesh holes of the first filter screen 23 not easily blocked. By driving the first rotating shaft 31 to rotate forward and backward by the motor 3, the cleaning brush 36 reciprocally cleans the surface of the first filter screen 23.

[0052] As Figure 2 、 Figure 5 and Figure 6As shown in the figure, a stirring assembly 5 for stirring ceramsite filler is arranged on the inner bottom wall of the treatment tank 21; the stirring assembly 5 includes a second rotating shaft 51 rotatably connected to the inner bottom wall of the treatment tank 21 and a transmission member 52 that enables the lead screw 33 to drive the second rotating shaft 51 to rotate; a plurality of stirring plates 511 are fixedly connected to the outer side wall of the second rotating shaft 51; the transmission member 52 is arranged on the baffle 22, and the transmission member 52 includes a third rotating shaft 521 rotatably connected to the baffle 22, a third bevel gear 522, a first sprocket 523 and a chain 524; the top end of the third rotating shaft 521 is located above the baffle 22, and the third bevel gear 522 is fixedly connected to the top end of the third rotating shaft 521; a fourth bevel gear 331 meshing with the third bevel gear 522 is fixedly connected to the outer side wall of the lead screw 33 close to the third bevel gear 522; the bottom end of the third rotating shaft 521 extends to the bottom of the baffle 22, and the first sprocket 523 is fixedly connected to the bottom end of the third rotating shaft 521; a second sprocket 512 is fixedly connected to the top end of the second rotating shaft 51; the chain 524 is sleeved outside the first sprocket 523 and the second sprocket 512 to link the first sprocket 523 and the second sprocket 512.

[0053] During the rotation of the lead screw 33, the third rotating shaft 521 is driven to rotate through the cooperation of the third bevel gear 522 and the fourth bevel gear 331, and under the transmission action of the first sprocket 523, the chain 524 and the second sprocket 512, the second rotating shaft 51 drives the stirring plates 511 to stir the ceramsite filler, so as to promote the ceramsite filler to fully filter the sewage.

[0054] As Figure 2 and Figure 7 shown in the figure, a dredging assembly 4 for preventing the drainage port 251 from being blocked is arranged on the bottom surface of the mud guard box 25; the dredging assembly 4 includes a backing plate 41 arranged at the bottom of the mud guard box 25, a plurality of pushing blocks 44 and a plurality of pointed rods 43 that can extend to the top of the drainage port 251; a first spring 42 is fixedly connected to the top surface of the backing plate 41, and the end of the first spring 42 away from the backing plate 41 is fixedly connected to the bottom surface of the mud guard box 25; a plurality of pointed rods 43 are fixedly connected to the top surface of the backing plate 41 corresponding to the drainage port 251, and a plurality of pushing blocks 44 are arranged at intervals on the bottom surface of the backing plate 41 along the sliding direction of the sliding plate 35; both side walls in the length direction of the pushing block 44 are inclined surfaces 441, the shape of the pushing block 44 is an inverted isosceles trapezoid, and rounded corners 351 matched with the inclined surfaces 441 are arranged on both side walls in the length direction of the top surface of the sliding plate 35; the shortest distance between adjacent two pushing blocks 44 is greater than the width of the sliding plate 35; a limiting plate 45 is fixedly connected to the side wall of the backing plate 41 away from the river channel, a limiting rod 46 penetrating through the limiting plate 45 is fixedly connected to the bottom surface of the mud guard box 25, the limiting rod 46 is slidably matched with the inner side wall of the limiting plate 45, and a stop block 47 contacting the bottom surface of the limiting plate 45 is fixedly connected to the bottom end of the limiting rod 46.

[0055] Through the cooperation of the rounded corner 351 and the inclined surface 441, the skateboard 35 squeezes and pushes the push block 44 during the reciprocating sliding process, driving the backing plate 41 and the pointed rod 43 to move upward, so that the top end of the pointed rod 43 passes through the drain port 251 to dredge the drain port 251, reducing the possibility of the drain port 251 being blocked. And through the cooperation of the limit plate 45 and the limit rod 46, the backing plate 41 is not easily displaced, ensuring the dredging effect of the pointed rod 43 on the drain port 251. The setting of the stop block 47 makes the limit plate 45 not easily fall off the limit rod 46.

[0056] As Figure 2 and Figure 8 shown, a protective shell 28 covering the motor 3 is fixedly connected to the top surface of the protective plate 26; a plurality of heat dissipation holes 281 are provided on the side wall of the protective shell 28 close to the river; second filter meshes 282 are fixedly connected to the inner side walls of the plurality of heat dissipation holes 281.

[0057] The protective shell 28 protects the motor 3 from being damaged. The setting of the heat dissipation holes 281 enables the heat generated during the operation of the motor 3 to be discharged in time. The setting of the second filter meshes 282 blocks dust and impurities in the external environment, keeping the inside of the protective shell 28 clean.

[0058] A construction method for a slope-type wetland in the riparian zone, the construction method comprising the following specific steps:

[0059] S1: Respectively lay a first planting layer 111 and a second planting layer 131 on the first inclined part 11 and the second inclined part 13 of the slope wetland body 1, and anchor the first planting layer 111 through the first protective grille 112 and the first anchor rod 113, and anchor the second planting layer 131 through the second protective grille 132 and the second anchor rod 133, and plant slope protection plants on the first planting layer 111 and the second planting layer 131;

[0060] S2: Dig grooves 121 at intervals along the slope length direction on the horizontal part 12 of the slope wetland body 1, and arrange a water body filtering mechanism 2 in the grooves 121;

[0061] S3: Regularly clean the sludge residues in the mud guard box 25 and replace the first filter mesh 23 to ensure the sewage treatment effect of the treatment tank 21.

[0062] Working principle: The slope protection plants are planted on the first planting layer 111 and the second planting layer 131. After the first protection grille 112 is installed outside the first planting layer 111, the first protection grille 112 and the first planting layer 111 are anchored by the first anchor rod 113. After the second protection grille 132 is installed outside the second planting layer 131, the second protection grille 132 and the second planting layer 131 are anchored by the second anchor rod 133. The slope is protected by the slope protection plants planted on the first planting layer 111 and the second planting layer 131;

[0063] In a rainy environment, when the sewage flowing down from the first inclined part 11 flows to the horizontal part 12, the sewage enters the mud guard box 25 through the water passing port 261 on the protection plate 26. The larger crushed stones mixed in the sewage are blocked outside the protection plate 26. The sewage entering the mud guard box 25 flows to the first filter screen 23 through the drain port 251 on the inner side wall of the bottom end of the mud guard box 25. When the sewage passes through the drain port 251, the sundries such as broken leaves and mud residues contained in the sewage are blocked inside the mud guard box 25; and then the large particle sand and gravel in the sewage are filtered out through the first filter screen 23. When the sewage falls to the position of the ceramsite filler, the small particle impurities in the sewage are filtered by the ceramsite filler. The sewage is gradually filtered through the arranged protection plate 26, mud guard box 25, first filter screen 23 and ceramsite filler;

[0064] Open the valve 271 on the overflow pipe 27. When the water level in the treatment tank 21 reaches the position of the overflow pipe 27, the sewage is discharged into the wetland river through the overflow pipe 27, so that the sewage generated on the slope is not easily directly discharged into the river and has a greater impact on the river ecology;

[0065] When the treatment tank 21 filters the sewage, start the motor 3 to drive the first rotating shaft 31 to rotate. Under the cooperation of the first bevel gear 32 and the second bevel gear 34, the lead screw 33 is driven to rotate. During the rotation of the lead screw 33, the slide plate 35 is driven to slide along the surface of the lead screw 33, so that the cleaning brush 36 cleans the first filter screen 23, so that the mesh holes of the first filter screen 23 are not easily blocked. The cleaning brush 36 reciprocally cleans the surface of the first filter screen 23 by driving the first rotating shaft 31 to rotate forward and backward by the motor 3;

[0066] During the rotation of the lead screw 33, the third rotating shaft 521 is driven to rotate through the cooperation of the third bevel gear 522 and the fourth bevel gear 331, and the second rotating shaft 51 drives the stirring plate 511 to stir the ceramsite filler under the transmission of the first sprocket 523, the chain 524 and the second sprocket 512, so as to promote the ceramsite filler to fully filter the sewage and remove the impurities in the sewage;

[0067] During the sliding process of the skateboard 35, the rounded corner 351 on the side wall of the top surface of the skateboard 35 gradually approaches and contacts the inclined surface 441 on the pushing block 44. Through the cooperation of the rounded corner 351 and the inclined surface 441, the skateboard 35 squeezes the pushing block 44 to drive the backing plate 41 and the pointed rod 43 to move upward, so that the top end of the pointed rod 43 passes through the drain opening 251 to dredge the drain opening 251, reducing the possibility of the drain opening 251 being blocked. Through the cooperation of the pushing block 44, the first spring 42 and the skateboard 35, the skateboard 35 can dredge the drain opening 251 with the pointed rod 43 during the reciprocating sliding process. During the up and down movement of the backing plate 41, through the cooperation of the limiting plate 45 and the limiting rod 46, the backing plate 41 is not easily displaced, ensuring the dredging effect of the pointed rod 43 on the drain opening 251;

[0068] The protective shell 28 provided outside the motor 3 plays a protective role for the motor 3, making the motor 3 not easily damaged. The heat generated during the operation of the motor 3 is discharged through the heat dissipation holes 281. The second filter screen 282 provided on the inner side wall of the heat dissipation holes 281 filters the dust and impurities in the external environment, making it difficult for the dust and impurities to enter the interior of the protective shell 28.

[0069] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A sloping wetland in the riparian zone, characterized in that: It includes a slope wetland body (1) arranged on one side of a river channel; on the side of the slope wetland body (1) close to the river bank, there are successively arranged a first inclined part (11), a horizontal part (12) and a second inclined part (13); on the first inclined part (11), there is arranged a first planting layer (111) for planting plants; outside the first planting layer (111), there is arranged a first protective grille (112); on the first protective grille (112), there is arranged a first anchor rod (113); the first anchor rod (113) penetrates through the first protective grille (112) and the first planting layer (111) and is nailed inside the slope wetland body (1); on the second inclined part (13), there is arranged a second planting layer (131) for planting plants; outside the second planting layer (131), there is arranged a second protective grille (132); on the second protective grille (132), there is arranged a second anchor rod (133); the second anchor rod (133) penetrates through the second protective grille (132) and the second planting layer (131) and is nailed inside the slope wetland body (1); on the horizontal part (12), there is arranged a water body filtering mechanism (2) for treating the water body flowing down on the surface of the first inclined part (11). On the top surface of the horizontal part (12), there is a groove (121); the water body filtering mechanism (2) includes a treatment box (21) arranged in the groove (121); on the inner side wall of the treatment box (21), there is fixedly connected a baffle (22); on the baffle (22), there is a first opening (221); on the inner side wall of the first opening (221), there is fixedly connected a first filter screen (23); on the inner side wall of the treatment box (21), there is fixedly connected a cushion block (24) located at the top of the baffle (22); on the top surface of the cushion block (24), there is arranged a mud retaining box (25); on the inner side wall of the bottom end of the mud retaining box (25), there is a drain port (251); on the top surface of the mud retaining box (25), there is installed a protective plate (26); on the top surface of the protective plate (26), there is a water passing port (261); inside the treatment box (21), there is placed ceramsite filter material located at the bottom of the baffle (22). A motor (3) is installed on the top surface of the protection plate (26); a first rotating shaft (31) extending into the processing box (21) is fixedly connected to the output end of the motor (3); the end of the first rotating shaft (31) away from the motor (3) sequentially penetrates through the protection plate (26) and the inner bottom wall of the mud guard box (25) and then extends to the bottom of the mud guard box (25), and a first bevel gear (32) is fixedly connected to the end of the first rotating shaft (31) extending to the bottom of the mud guard box (25); a lead screw (33) is rotatably connected to the inner side wall of the processing box (21); a second bevel gear (34) meshing with the first bevel gear (32) is fixedly connected to the outer side wall of the lead screw (33) close to the first bevel gear (32), and a slide plate (35) in threaded transmission cooperation with the lead screw (33) is sleeved outside the lead screw (33); a cleaning brush (36) capable of contacting the baffle (22) and the first filter screen (23) is fixedly connected to the bottom surface of the slide plate (35); a straight rod (37) penetrating through the slide plate (35) is fixedly connected to the inner side wall of the processing box (21); the inner side wall of the slide plate (35) is in sliding cooperation with the straight rod (37); A dredging assembly (4) for preventing the drain port (251) from being easily blocked is arranged on the bottom surface of the mud guard box (25); the dredging assembly (4) includes a backing plate (41) arranged at the bottom of the mud guard box (25); the backing plate (41) is fixedly connected to the bottom surface of the mud guard box (25) through a first spring (42), and a pointed rod (43) capable of penetrating through the drain port (251) and extending to the top of the drain port (251) is fixedly connected to the position of the top surface of the backing plate (41) corresponding to the drain port (251); a pushing block (44) is fixedly connected to the bottom surface of the backing plate (41); both side walls in the length direction of the pushing block (44) are inclined surfaces (441); rounded corners (351) cooperating with the inclined surfaces (441) are arranged on both side walls in the length direction of the top surface of the slide plate (35); A limiting plate (45) is fixedly connected to the side wall of the backing plate (41); a limiting rod (46) penetrating through the limiting plate (45) is fixedly connected to the bottom surface of the mud guard box (25); a stop block (47) contacting the bottom surface of the limiting plate (45) is fixedly connected to the bottom end of the limiting rod (46); On the inner side wall of the bottom end of the treatment box (21), there is a stirring assembly (5) for stirring ceramsite fillers; the stirring assembly (5) includes a second rotating shaft (51) and a transmission member (52) that enables the lead screw (33) to drive the second rotating shaft (51) to rotate; the second rotating shaft (51) is rotatably connected to the inner side wall of the bottom end of the treatment box (21), and a stirring plate (511) is fixedly connected to the outer side wall of the second rotating shaft (51); the transmission member (52) is arranged on the baffle (22), and the transmission member (52) includes a third rotating shaft (521) rotatably connected to the baffle (22); the top end of the third rotating shaft (521) is located above the baffle (22), and a third bevel gear (522) is fixedly connected to the top end of the third rotating shaft (521); a fourth bevel gear (331) meshing with the third bevel gear (522) is fixedly connected to the outer side wall of the lead screw (33) close to the third bevel gear (522); the bottom end of the third rotating shaft (521) extends to the bottom of the baffle (22), and a first sprocket (523) is fixedly connected to the bottom end of the third rotating shaft (521); a second sprocket (512) is fixedly connected to the top end of the second rotating shaft (51); a chain (524) for linking the first sprocket (523) and the second sprocket (512) is sleeved outside the first sprocket (523) and the second sprocket (512).

2. The slope-type wetland of a riparian zone according to claim 1, characterized in that: An overflow pipe (27) is fixedly connected to the side wall of the treatment box (21) close to the second inclined part (13); one end of the overflow pipe (27) is located inside the treatment box (21), and the end of the overflow pipe (27) far from the treatment box (21) passes through the slope wetland body (1) and the second planting layer (131) and then extends outside the second planting layer (131), and a valve (271) is arranged on the end of the overflow pipe (27) extending outside the second planting layer (131).

3. The slope-type wetland of a riparian zone according to claim 1, characterized in that: A protective shell (28) covering the outside of the motor (3) is fixedly connected to the top surface of the protective plate (26); heat dissipation holes (281) are arranged on the side wall of the protective shell (28) close to the river; a second filter screen (282) is fixedly connected to the inner side wall of the heat dissipation holes (281).

4. The slope-type wetland in the riparian zone according to claim 1, characterized in that: A threaded hole (241) is arranged on the top surface of the cushion block (24); a first through hole (252) corresponding to the threaded hole (241) is arranged on the bottom surface of the mud guard box (25); a second through hole (262) matching the first through hole (252) is arranged on the bottom surface of the protective plate (26) corresponding to the first through hole (252); a threaded rod (242) that can pass through the first through hole (252) and the second through hole (262) is threadedly connected to the inner side wall of the threaded hole (241).

5. A construction method for a sloping wetland in a riparian zone, based on the sloping wetland in a riparian zone according to any one of claims 1-4, characterized in that: This construction method includes the following specific steps: S1: Lay the first planting layer (111) and the second planting layer (131) on the first inclined part (11) and the second inclined part (13) of the slope wetland body (1) respectively, and anchor the first planting layer (111) through the first protection grille (112) and the first anchor rod (113), and anchor the second planting layer (131) through the second protection grille (132) and the second anchor rod (133), and plant slope protection plants on the first planting layer (111) and the second planting layer (131); S2: Dig grooves (121) at intervals along the slope length direction on the horizontal part (12) of the slope wetland body (1), and arrange a water body filtering mechanism (2) in the grooves (121); S3: Regularly clean the sludge residues in the mud retaining box (25) and replace the first filter screen (23) to ensure the sewage treatment effect of the treatment tank (21).

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