Water conservancy project riverway ecological slope protection structure

Abstract

The invention belongs to the technical field of ecological slope protection, and particularly relates to a hydraulic engineering riverway ecological slope protection structure which comprises a slope body, an embedding pit is dug in the upper surface of the slope body, and slope protection units are arranged in the embedding pit in a rectangular array mode. In the initial state, the supporting plate inclines backwards under the action of the balance weight block, in the rainstorm weather, the water absorption sponge arranged at the front end of the supporting plate can absorb rainwater, so that the weight of the water absorption sponge is increased, and the front end of the supporting plate rotates forwards under the gravity action of the water absorption sponge till the limiting block makes contact with the stop block; the front end of the supporting plate on the rear side makes contact with the rear end of the upper wall of the supporting plate on the front side, rainwater flows into river water below along the plastic films arranged in the array mode from top to bottom, and therefore the scouring effect of the rainwater on soil on the surface of the slope is reduced, water and soil loss is relieved, and vegetation planted on the slope is protected against being washed away by the rainwater.

Description

Technical Field

[0001] The invention belongs to the technical field of ecological slope protection, and particularly relates to an ecological slope protection structure for a river channel in a water conservancy project. Background Art

[0002] River channel ecological slope protection is a comprehensive system that combines knowledge of engineering mechanics, soil science, ecology, botany, etc. It supports the river channel slope through vegetation, geotechnical materials or special structures to form a comprehensive system that can not only stabilize the slope but also restore the ecology. Its core lies in combining engineering protection and ecological restoration to avoid the damage to the environment caused by traditional hardened slope protection.

[0003] In the prior art, a Chinese patent application with the publication number of CN117166414A discloses an ecological slope protection structure for a river channel in a water conservancy project. When encountering heavy rain, the driving part will start to drive the bearing part to drive the shielding part to unfold, so that the shielding part can block the heavy rain to protect the green plants, and the soil in the planting holes is not easily washed away by the heavy rain, thereby improving the survival rate of the green plants. However, the driving part adopts an electrical device including a high-pressure pump. In reality, the area of the river channel ecological slope protection is large, and more high-pressure pumps are required to achieve its technical effect, resulting in high operating costs. Moreover, the technical solution adopts relatively complex structures such as a guide plate, blades and a pull rope, and the stability is poor during the actual operation process, and it cannot adapt to the complex and changeable natural environment. Summary of the Invention

[0004] The invention overcomes the deficiencies of the prior art and provides an ecological slope protection structure for a river channel in a water conservancy project. The fixed cage can be buried on the surface of the slope body. The user can adjust the inclination angle of the support rod according to the slope of the slope body surface to make the movable plate assembly face the appropriate direction. The lower connecting rod is connected between the support rods to enable the support rods to rotate synchronously. In the initial state, the support plate tilts backward under the action of the balance weight. When encountering heavy rain, the water-absorbing sponge arranged at the front end of the support plate can absorb rainwater, thereby increasing the weight of the water-absorbing sponge. The front end of the support plate is affected by the gravity of the water-absorbing sponge and thus rotates forward until the limiting block touches the stop block, and the front end of the rear support plate touches the rear end of the upper wall of the front support plate. The rainwater will flow down along the plastic film arranged in an array to the lower river water, thereby reducing the scouring effect of the rainwater on the soil on the slope body surface, alleviating soil erosion, and protecting the vegetation planted on the slope body from being washed away by the rainwater.

[0005] The technical solution adopted by the present invention is as follows: This solution provides an ecological slope protection structure for a river channel of a water conservancy project, including a slope body, a buried pit excavated on the upper surface of the slope body, a rectangular array of slope protection units in the buried pit, backfill soil buried in the buried pit, and the slope protection unit includes a fixed cage, a movable rod assembly and a movable plate assembly, the rectangular array of fixed cages is arranged in the buried pit, the fixed cage is buried in the backfill soil, the movable rod assemblies are arranged above the fixed cage in a left-right symmetrical array along the length direction of the fixed cage, the lower ends of the movable rod assemblies are respectively rotatably connected to the fixed cages, the movable plate assemblies are arranged at the upper ends of the movable rod assemblies in an array along the length direction of the fixed cage, and the movable plate assemblies are respectively rotatably connected to the two left-right symmetrical movable rod assemblies.

[0006] Furthermore, the movable plate assembly includes a support plate and a plastic film, the support plates are rotatably arranged at the upper ends of two movable rod assemblies that are symmetrical on the left and right, the front end of the rear support plate is movably arranged above the rear end of the upper wall of the front support plate, and an accommodating opening is opened in the middle part of the upper wall of the support plate, the plastic film is arranged in the accommodating opening, and the left and right edges of the plastic film are fixedly arranged on the inner left and right side walls of the accommodating opening.

[0007] Furthermore, a fixing groove is fixedly provided at the front end of the support plate, a water-absorbing sponge is fixedly engaged in the fixing groove, and the water-absorbing sponge is provided at the front end of the plastic film.

[0008] Furthermore, an upper plate shaft is fixedly arranged symmetrically on the front end of the upper wall of the support plate, and a lower plate shaft is fixedly arranged symmetrically on the rear end of the lower wall of the support plate. The movable plate assembly also includes a first upper connecting rod and a second upper connecting rod, the first upper connecting rod is connected at intervals between the front and rear adjacent upper plate shafts, the two ends of the first upper connecting rod are respectively rotatably connected to the upper plate shaft, the second upper connecting rod is connected at intervals between the front and rear adjacent lower plate shafts, the two ends of the second upper connecting rod are respectively rotatably connected to the lower plate shaft, and the first upper connecting rod and the second upper connecting rod are staggered.

[0009] Furthermore, the upper wall of the fixed cage is fixed with support shafts in a left-right symmetrical array along the length direction of the fixed cage, and the movable rod assembly includes a support rod and a lower connecting rod. The lower end of the support rod is rotatably set on the support shaft, and the upper end of the support rod is rotatably set at the middle position of the left and right edges of the lower wall of the support plate, and the two ends of the lower connecting rod are rotatably connected between the side walls of adjacent support rods.

[0010] Furthermore, a lower rod shaft is fixedly provided at the lower end of the support rod. A rotation groove is formed in the side wall of the lower rod shaft. The support shaft is rotatably arranged in the rotation groove. A fixed threaded rod is fixedly provided on the inner wall of the rotation groove. The fixed threaded rod penetrates through the side wall of the support shaft and the outer wall of the lower rod shaft. A fixed nut is sleeved on the fixed threaded rod. The fixed nut is movably arranged on the outer wall of the lower rod shaft. The fixed nut is in threaded connection with the fixed threaded rod.

[0011] Furthermore, a stop block is fixedly provided on the side wall of the lower plate shaft. A limit block is fixedly provided at the front end of the second upper connecting rod. The stop block and the limit block are in movable contact. When the stop block is in contact with the limit block, the front ends of the rear support plates are respectively in contact with the rear ends of the upper walls of the front support plates.

[0012] Furthermore, a balance weight is fixedly provided at the edge of the rear end of the lower wall of the support plate. When the water-absorbing sponge is not absorbing water, the support plate tilts backward under the action of the gravity of the balance weight.

[0013] Furthermore, tie bars are connected between the fixing cages in adjacent slope protection units.

[0014] Furthermore, the plastic film is made of agricultural PO film. The fixing cage, the support rod, the support plate, the first upper connecting rod, the second upper connecting rod, the lower connecting rod and the tie bar are made of stainless steel. The water-absorbing sponge is made of highly water-absorbent cellulose sponge material.

[0015] The beneficial effects obtained by the present invention with the above structure are as follows: (1) The river ecological slope protection structure involved in the present invention adopts an assembled technical solution. The slope protection unit is used as an assembled unit and can be flexibly arranged on the upper surface of the slope according to the actual situation. The user can flexibly select different numbers of slope protection units according to the actual area size and length of the slope at different positions to meet the protection requirements of slopes at different positions. (2) The fixing cage can be buried in the embedding pit dug on the surface of the slope. The fixing cages in adjacent slope protection units are connected by tie bars, so that multiple fixing cages are connected into one body and form a stable connection layer together with the backfill soil, enhancing the stability of the soil on the upper surface of the slope and improving the soil erosion situation during rainwater scouring. (3) The user can turn the fixing nut to disengage the fixing nut from the contact with the side wall of the lower rod shaft, and the lower rod shaft loses its fixing effect on the support shaft. At this time, the user can rotate the support rod. The user can adjust the inclination angle of the support rod according to the slope of the slope surface and the local natural environment to make the movable plate assembly face the appropriate direction. At the same time, the lower connecting rod is connected between the support rods so that the support rods can rotate synchronously. After the position of the support rod is determined, the user re-tightens the fixing nut to make the fixing nut contact with the side wall of the lower rod shaft again, and the lower rod shaft re-applies a clamping force to the support shaft, and the position of the support rod is fixed under the action of the friction between the rotating groove and the support shaft; (4) In the initial state, the support plate tilts backward under the action of the balance weight. When encountering heavy rain, the water-absorbing sponge set at the front end of the support plate can absorb rainwater, thereby increasing the weight of the water-absorbing sponge. The front end of the support plate is acted upon by the gravity of the water-absorbing sponge and rotates forward until the limit block contacts the stop block, and the front end of the rear support plate contacts the rear end of the upper wall of the front support plate. At this time, multiple support plates and plastic films are connected to form a rainproof layer. Rainwater will flow from top to bottom along the plastic film set in the array to the river below, thereby reducing the scouring effect of rainwater on the soil on the slope surface, alleviating soil erosion, and protecting the vegetation planted on the slope from being washed away by rainwater. (5) The first upper connecting rod and the second upper connecting rod connect the multiple support plates together. When one of the support plates rotates relative to the support rod, the other support plates will rotate in conjunction with it, achieving the technical effect of unified rotation of the support plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the first working condition of a water conservancy project river ecological slope protection structure proposed by the present invention; Figure 2 This is a structural schematic diagram of the second working condition of a water conservancy project river ecological slope protection structure proposed by the present invention; Figure 3 This is a structural diagram of the slope protection unit in the first working state when it is set on the slope; Figure 4 This is a structural diagram of the slope protection unit in the second working state when it is set on the slope; Figure 5 It is a side view of the slope protection unit in the first working state; Figure 6 It is a side view of the slope protection unit in the second working state; Figure 7 Schematic diagram of the connection structure between the lower rod shaft and the support shaft; Figure 8 Schematic diagram of the connection structure of the limit block and the stop block; Figure 9Schematic diagram of the connection structure of the support plate, plastic film, first upper connecting rod, second upper connecting rod, support rod and lower connecting rod; Figure 10 is Figure 9 Enlarged schematic diagram of part A in; Figure 11 Schematic diagram of the connection structure of the fixing cage and the tie bar; Figure 12 Schematic diagram of the connection structure of the balance weight and the support plate.

[0017] Among them, 1, slope body, 11, backfill soil, 2, slope protection unit, 21, fixing cage, 211, support shaft, 22, movable rod assembly, 221, support rod, 2211, lower rod shaft, 2212, rotating groove, 2213, fixing threaded rod, 2214, fixing nut, 222, lower connecting rod, 23, movable plate assembly, 231, support plate, 2311, receiving opening, 2312, upper plate shaft, 2313, lower plate shaft, 2314, fixing groove, 2315, stop block, 2316, balance weight, 232, plastic film, 233, first upper connecting rod, 234, second upper connecting rod, 2341, limit block, 235, water-absorbing sponge, 3, tie bar.

[0018] The attached drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the attached drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0021] Please refer to Figures 1 - 12In this embodiment, a river channel ecological slope protection structure of a water conservancy project includes a slope body 1, a buried pit is dug on the upper surface of the slope body 1, and a rectangular array of slope protection units 2 are arranged in the buried pit. The buried pit is filled with backfill soil 11, and the slope protection unit 2 includes a fixed cage 21, a movable rod assembly 22 and a movable plate assembly 23. The rectangular array of fixed cages 21 is arranged in the buried pit, and the fixed cages 21 are buried in the backfill soil 11. Tie bars 3 are connected between the fixed cages 21 in adjacent slope protection units 2. The movable rod assemblies 22 are arranged above the fixed cages 21 in a left-right symmetrical array along the length direction of the fixed cages 21, and the lower ends of the movable rod assemblies 22 are respectively rotatably connected to the fixed cages 21. The movable plate assemblies 23 are arranged at the upper ends of the movable rod assemblies 22 in an array along the length direction of the fixed cages 21, and the movable plate assemblies 23 are respectively rotatably connected to the two left-right symmetrical movable rod assemblies 22.

[0022] The movable plate assembly 23 includes a support plate 231 and a plastic film 232. The support plates 231 are rotatably arranged at the upper ends of the two symmetrical movable rod assemblies 22. The front end of the rear support plate 231 is movably arranged above the rear end of the upper wall of the front support plate 231. A receiving opening 2311 is opened in the middle part of the upper wall of the support plate 231. The plastic film 232 is arranged in the receiving opening 2311. The left and right edges of the plastic film 232 are respectively fixed on the left and right side walls inside the receiving opening 2311. The plastic film 232 is made of agricultural PO film. A fixing groove 2314 is fixed on the front end of the support plate 231. A water-absorbing sponge 235 is fixed in the fixing groove 2314. The water-absorbing sponge 235 is arranged at the front end of the plastic film 232. The water-absorbing sponge 235 is made of highly absorbent cellulose sponge.

[0023] The front end of the upper wall of the support plate 231 is symmetrically fixed with an upper plate shaft 2312, and the rear end edge of the lower wall of the support plate 231 is fixed with a balance weight 2316. When the water-absorbing sponge 235 has not absorbed water, the support plate 231 tilts backward under the action of the gravity of the balance weight 2316; the rear end of the lower wall of the support plate 231 is symmetrically fixed with a lower plate shaft 2313. The movable plate assembly 23 also includes a first upper connecting rod 233 and a second upper connecting rod 234. The first upper connecting rod 233 is connected at intervals between the upper plate shafts 2312 adjacent to the front and rear, and the two ends of the first upper connecting rod 233 are respectively rotatably connected to the upper plate shaft 2312, and the second upper connecting rod 234 is connected at intervals between the lower plate shafts 2313 adjacent to the front and rear, and the two ends of the second upper connecting rod 234 are respectively rotatably connected to the lower plate shaft 2313, and the first upper connecting rod 233 and the second upper connecting rod 234 are staggered with each other.

[0024] The upper wall of the fixed cage 21 is symmetrically and array - fixed with support shafts 211 along the length direction of the fixed cage 21. The movable rod assembly 22 includes a support rod 221 and a lower connecting rod 222. The lower end of the support rod 221 is rotatably arranged on the support shaft 211, the upper ends of the support rods 221 are respectively rotatably arranged at the middle positions of the left and right edges of the lower wall of the support plate 231, and the two ends of the lower connecting rod 222 are respectively rotatably connected between the side walls of adjacent support rods 221. The fixed cage 21, the support rod 221, the support plate 231, the first upper connecting rod 233, the second upper connecting rod 234, the lower connecting rod 222 and the tie bar 3 are made of stainless steel.

[0025] A lower rod shaft 2211 is fixedly arranged at the lower end of the support rod 221. A rotation groove 2212 is formed in the side wall of the lower rod shaft 2211. The support shaft 211 is rotatably arranged in the rotation groove 2212. A fixed threaded rod 2213 is fixedly arranged on the inner wall of the rotation groove 2212. The fixed threaded rod 2213 penetrates through the side wall of the support shaft 211 and the outer wall of the lower rod shaft 2211. A fixed nut 2214 is sleeved on the fixed threaded rod 2213. The fixed nut 2214 is movably arranged on the outer wall of the lower rod shaft 2211, and the fixed nut 2214 is threadedly connected with the fixed threaded rod 2213.

[0026] A stop block 2315 is fixedly arranged on the side wall of the lower plate shaft 2313. A limit block 2341 is fixedly arranged at the front end of the second upper connecting rod 234. The stop block 2315 and the limit block 2341 are in movable contact. When the stop block 2315 is in contact with the limit block 2341, the front ends of the rear support plates 231 are respectively in contact with the rear ends of the upper walls of the front support plates 231.

[0027] Working principle and working process: The river ecological slope protection structure involved in the present invention adopts an assembled technical solution. The slope protection unit 2, as an assembled unit, can be flexibly arranged on the upper surface of the slope body 1 according to actual conditions. The user can flexibly select different numbers of slope protection units 2 according to the actual area size and length of the slope body 1 at different positions to meet the protection requirements of the slope body 1 at different positions.

[0028] Construction workers first dig a buried pit on the upper surface of the slope body 1 and bury the fixed cage 21 in the buried pit. The fixed cages 21 in adjacent slope protection units 2 are connected by the tie bar 3, so that a plurality of fixed cages 21 are connected into one body and form a stable connection layer together with the backfill soil 11, enhancing the stability of the soil on the upper surface of the slope body 1 and improving the soil erosion situation during rainwater scouring. Users can plant vegetation in the backfill soil to improve the greening degree of the slope and improve the slope protection environment.

[0029] The user can screw the fixing nut 2214 to disengage the fixing nut 2214 from the contact with the side wall of the lower rod shaft 2211, and the lower rod shaft 2211 loses its fixing effect on the support shaft 211. At this time, the user can rotate the support rod 221, and the user can adjust the inclination angle of the support rod 221 according to the slope of the slope body 1 surface and the local natural environment to make the movable plate assembly 23 face the appropriate direction. At the same time, the lower connecting rod 222 is connected between the support rods 221 so that the support rod 221 can rotate synchronously. After the position of the support rod 221 is determined, the user re-tightens the fixing nut 2214 to make the fixing nut 2214 contact the side wall of the lower rod shaft 2211 again, and make the lower rod shaft 2211 apply clamping force to the support shaft 211 again, and the position of the support rod 221 is fixed under the action of the friction between the rotating groove 2212 and the support shaft 211.

[0030] In the initial state, the support plate 231 is tilted backwards under the action of the balance weight 2316. At this time, the vegetation is not blocked by the support plate 231 and the plastic film 232. Figure 1 , Figure 3 and Figure 5 In the state shown, when encountering heavy rain, the water-absorbing sponge 235 set at the front end of the support plate 231 can absorb rainwater, thereby increasing the weight of the water-absorbing sponge 235. The front end of the support plate 231 is acted upon by the gravity of the water-absorbing sponge 235, thereby rotating forward until the limit block 2341 contacts the stop block 2315, and the front end of the rear support plate 231 contacts the rear end of the upper wall of the front support plate 231. At this time, multiple support plates 231 and plastic film 232 are connected into one piece to form a rainproof layer, as shown in FIG. Figure 2 , Figure 4 and Figure 6 In the state shown, rainwater will flow from top to bottom along the plastic film 232 arranged in the array to the river channel below, thereby reducing the scouring effect of rainwater on the soil on the surface of the slope 1, alleviating soil and water loss, and protecting the vegetation planted on the slope 1 from being washed away by rainwater, thereby ensuring the survival rate of the vegetation. The weight increased by the water-absorbing sponge 235 absorbing water can be determined through preliminary tests, which facilitates the selection of water-absorbing sponges 235 of appropriate specifications, ensuring that when the water-absorbing sponge 235 absorbs a certain amount of water, its overall weight can be greater than the weight of the balance weight 2316, thereby ensuring that the front end of the support plate 231 can rotate forward under the action of the gravity of the water-absorbing sponge 235, thereby realizing the rain-proof function of the support plate 231.

[0031] The first upper connecting rod 233 and the second upper connecting rod 234 connect the multiple support plates 231 together. When one of the support plates 231 rotates relative to the support rod 221, the other support plates 231 will rotate accordingly, achieving the technical effect of unified rotation of the support plates 231.

[0032] When the heavy rain ends, the water in the water-absorbing sponge 235 no longer increases. At the same time, due to the sun's irradiation and air flow, the water in the water-absorbing sponge 235 gradually evaporates, causing the weight of the water-absorbing sponge 235 to decrease. At this time, the balance weight 2316 will drive the support plate 231 to rotate backward again under the action of gravity. The vegetation below the support plate 231 is no longer blocked by the support plate 231 and the plastic film 232 and can receive sunlight, which helps the growth of the vegetation. When encountering heavy rain weather again, the slope protection unit 2 will repeat the above operations. Without the need for additional electrical devices, it can operate stably in a changeable natural environment, reducing the operation cost, with a simple structure and strong stability.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0034] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments to this technical solution without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A river ecological slope protection structure for a water conservancy project, including a slope body (1), wherein a buried pit is dug on the upper surface of the slope body (1), and it is characterized in that: A rectangular array is provided with slope protection units (2) in the embedding pit. Backfill soil (11) is filled in the embedding pit. The slope protection unit (2) includes a fixed cage (21), a movable rod assembly (22) and a movable plate assembly (23). The fixed cages (21) are arranged in a rectangular array in the embedding pit and are buried in the backfill soil (11). The movable rod assembly (22) is symmetrically arrayed left and right along the length direction of the fixed cage (21) above the fixed cage (21). The lower ends of the movable rod assembly (22) are respectively rotatably connected to the fixed cage (21). The movable plate assembly (23) is arrayed along the length direction of the fixed cage (21) at the upper ends of the movable rod assembly (22). The movable plate assembly (23) is respectively rotatably connected to two symmetrically arranged movable rod assemblies (22).

2. The ecological slope protection structure for a river channel in a water conservancy project according to claim 1, characterized in that: The movable plate assembly (23) includes a support plate (231) and a plastic film (232). The support plates (231) are respectively rotatably arranged at the upper ends of two symmetrically arranged movable rod assemblies (22). The front end of the rear support plate (231) is movably arranged above the rear end of the upper wall of the front support plate (231). A receiving opening (2311) is formed in the middle of the upper wall of the support plate (231). The plastic film (232) is arranged in the receiving opening (2311). The left and right edges of the plastic film (232) are respectively fixedly arranged on the left and right side walls inside the receiving opening (2311).

3. A river ecological slope protection structure for a water conservancy project according to claim 2, characterized in that: A fixing groove (2314) is fixedly arranged at the front end of the support plate (231). A water-absorbing sponge (235) is fixedly arranged in the fixing groove (2314) in a clamped manner. The water-absorbing sponge (235) is arranged at the front end of the plastic film (232).

4. A river ecological slope protection structure for a water conservancy project according to claim 3, characterized in that: Upper plate shafts (2312) are symmetrically fixed on the left and right at the front end of the upper wall of the support plate (231). Lower plate shafts (2313) are symmetrically fixed on the left and right at the rear end of the lower wall of the support plate (231). The movable plate assembly (23) further includes a first upper connecting rod (233) and a second upper connecting rod (234). The first upper connecting rod (233) is spaced and connected between the front and rear adjacent upper plate shafts (2312). The two ends of the first upper connecting rod (233) are respectively rotatably connected to the upper plate shafts (2312). The second upper connecting rod (234) is spaced and connected between the front and rear adjacent lower plate shafts (2313). The two ends of the second upper connecting rod (234) are respectively rotatably connected to the lower plate shafts (2313). The first upper connecting rod (233) and the second upper connecting rod (234) are arranged staggeredly with each other.

5. A river ecological slope protection structure for water conservancy projects according to claim 4, characterized in that: Support shafts (211) are symmetrically fixed on the left and right along the length direction of the upper wall of the fixed cage (21). The movable rod assembly (22) includes a support rod (221) and a lower connecting rod (222). The lower end of the support rod (221) is rotatably arranged on the support shaft (211). The upper ends of the support rods (221) are respectively rotatably arranged at the middle positions of the left and right edges of the lower wall of the support plate (231). The two ends of the lower connecting rod (222) are respectively rotatably connected between the side walls of the adjacent support rods (221).

6. The ecological slope protection structure for a river channel of a water conservancy project according to claim 5, characterized in that: The lower end of the support rod (221) is fixedly provided with a lower rod shaft (2211). A rotation groove (2212) is formed in the side wall of the lower rod shaft (2211). The support shaft (211) is rotatably arranged in the rotation groove (2212). A fixed threaded rod (2213) is fixedly provided on the inner wall of the rotation groove (2212). The fixed threaded rod (2213) penetrates through the side wall of the support shaft (211) and the outer wall of the lower rod shaft (2211). A fixed nut (2214) is sleeved on the fixed threaded rod (2213). The fixed nut (2214) is movably arranged on the outer wall of the lower rod shaft (2211). The fixed nut (2214) is in threaded connection with the fixed threaded rod (2213).

7. A river ecological slope protection structure for water conservancy projects according to claim 6, characterized in that: A stop block (2315) is fixedly provided on the side wall of the lower plate shaft (2313). A limit block (2341) is fixedly provided at the front end of the second upper connecting rod (234). The stop block (2315) and the limit block (2341) are in movable contact. When the stop block (2315) is in contact with the limit block (2341), the front ends of the rear support plates (231) are respectively in contact with the rear end of the upper wall of the front support plates (231).

8. A river ecological slope protection structure for a water conservancy project according to claim 7, characterized in that: A balance weight (2316) is fixedly provided at the edge of the rear end of the lower wall of the support plate (231). When the water-absorbing sponge (235) is not absorbing water, the support plate (231) inclines backward under the action of the gravity of the balance weight (2316).

9. The ecological slope protection structure for a river channel in a water conservancy project according to claim 8, characterized in that: A tie bar (3) is connected between the fixed cages (21) in adjacent slope protection units (2).

10. A river ecological slope protection structure for water conservancy projects according to claim 9, characterized in that: The plastic film (232) is made of agricultural PO film. The fixed cage (21), the support rod (221), the support plate (231), the first upper connecting rod (233), the second upper connecting rod (234), the lower connecting rod (222) and the tie bar (3) are made of stainless steel. The water-absorbing sponge (235) is made of high water-absorbing cellulose sponge material.

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