A vertical revetment ecological buffer zone system adaptable to water level changes

Abstract

The present invention discloses a vertical revetment ecological buffer zone system adaptable to water level changes, belonging to the technical field of ecological revetments. It includes: two slope protection frames arranged in parallel, and the two slope protection frames are distributed perpendicular to the direction of the revetment; columns vertically arranged and fixed on the slope protection frames; connecting chains connected to each of the columns; multiple buffer slope protection units arranged in a row and parallel to the revetment, and both ends of the buffer slope protection units are connected to the columns through the connecting chains. In the present invention, multiple buffer slope protection units can form a multi-level protection system, enhancing the overall stability of the revetment. Among them, the buffer slope protection unit can intercept the impact of water flow through the first floating cylinders and the second floating cylinders in the front floating belt and the rear floating belt, thereby effectively dispersing the impact of the water flow on the revetment.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological revetments, and particularly relates to a vertical revetment ecological buffer zone system that adapts to water level changes. Background Art

[0002] Vertical revetments mainly construct riverbanks or lake shores into near-vertical surface structures through engineering measures to prevent soil erosion, protect infrastructure, and improve the landscape. While having a protective function, they promote biodiversity and the restoration of ecosystems. However, due to the direct scouring of the revetment structure by water flow, it is easy to cause soil erosion, and problems such as cracks and spalling may occur in hard materials such as concrete slabs or reinforced stone cages due to long-term water flow impact, reducing the protection effect of the revetment, gradually causing the entire revetment structure to lose support, and increasing the risk of collapse. Therefore, a revetment buffer zone is needed to reduce the direct scouring of the revetment structure by water flow.

[0003] In the prior art, such as the invention patent with the publication number CN108035303B, the anti-scouring ecological revetment structure it adopts can protect the natural riverbank through protective blocks, reducing the water flow impact to a certain extent. However, since the protective blocks cannot be adjusted autonomously with the change of water level, when the water level rises, the water flow will still cross over the protective blocks and directly scour the soil around the revetment, causing impact erosion.

[0004] Therefore, it is necessary to provide a vertical revetment ecological buffer zone system that adapts to water level changes to solve the problems raised in the above background art. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A vertical revetment ecological buffer zone system that adapts to water level changes, which includes: two parallel slope protection frames distributed perpendicular to the revetment direction; columns vertically arranged and fixed on the slope protection frames; connecting chains connected to each column; a plurality of buffer slope protection units arranged in parallel and parallel to the revetment, and both ends of the buffer slope protection units are connected to the columns through the connecting chains.

[0006] Preferably, the buffer slope protection unit is composed of a front floating belt and a rear floating belt, sprockets are fixed at the upper ends of the columns, and the connecting chains are wound around the sprockets in a V shape.

[0007] Preferably, the front floating belt includes: a plurality of first floating drums arranged in a row, with a first chain connected between each of the first floating drums; a fixing frame fixed inside the first floating drum; sliding sleeves slidably connected to both ends of the fixing frame, with a compression spring obliquely hinged on each of the sliding sleeves, one end of the compression spring being connected to the fixing frame; a central shaft rod horizontally connected inside the first floating drum, one end of the central shaft rod being connected to one of the sliding sleeves; two side shaft rods symmetrically distributed, one end of each of the two side shaft rods being connected to the other sliding sleeve; fixing disks distributed on both sides of the first floating drum left and right, each of the fixing disks being correspondingly connected to the other ends of the central shaft rod and the side shaft rods respectively.

[0008] Preferably, the rear floating belt includes: a plurality of second floating drums arranged in a row, with a second chain connected between each of the second floating drums; a central shaft disk rotatably connected inside the second floating drum, with sealing plates fixed on both inner sides of the second floating drum, and rollers rotatably connected to the sealing plates; a guide rod slidably connected inside the roller, one end of the guide rod being hinged to the central shaft disk; a tension spring, both ends of which are respectively connected to the guide rod.

[0009] Preferably, the first floating drums in the front floating belt and the second floating drums in the rear floating belt are staggeredly distributed.

[0010] Preferably, an inner connecting plate is fixed inside the second floating drum on each of the rollers, an anti-slip sleeve plate is arranged in parallel on one side of the inner connecting plate, the anti-slip sleeve plate is slidably sleeved outside the guide rod, and a plurality of limiting springs are connected between the anti-slip sleeve plate and the roller.

[0011] Preferably, the second chains on both sides of the second floating drum cause the two guide rods to gradually be in a straight-line distribution during reverse traction. At this time, the second floating drum is in an inclined state relative to the guide rod, and the inclination angle between the second floating drum and the guide rod is not greater than 25°.

[0012] Preferably, the second floating drums in the rear floating belt are connected in a left-right symmetric distribution or a left-right stepped distribution.

[0013] Preferably, the second floating drums of two of the rear floating belts in the buffer slope protection unit away from the bank direction are connected in a left-right stepped distribution; while the second floating drums of the remaining rear floating belts closer to the bank direction are connected in a left-right symmetric distribution.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, two slope protection frames are installed in the vertical direction of the revetment, and buffer slope protection units are horizontally distributed between the slope protection frames. Multiple buffer slope protection units can form a multi-level protection system, enhancing the overall stability of the revetment. Among them, the buffer slope protection unit can intercept the impact of water flow through the first floating cylinders and the second floating cylinders in the front floating belt and the rear floating belt, thereby effectively dispersing the impact of water flow on the revetment. The front floating belt and the rear floating belt are connected in a V shape by a connecting chain. Therefore, under low water level and normal water level conditions, both the front floating belt and the rear floating belt can float on the water surface to ensure that the impact force can be effectively dispersed when the water flow passes through. When the water level rises unexpectedly, at this time, the front floating belt can float with the change of the water level, while the rear floating belt gradually sinks underwater under the traction of the connecting chain. On the one hand, a natural diversion effect can be formed by the height difference between the front floating belt and the rear floating belt, so that the water flow is further dispersed when passing through, reducing the overall impact intensity. On the other hand, after the rear floating belt sinks underwater, a certain flow-around effect will be generated when the water flow passes through, slowing down the water flow speed, and the rear floating belt effectively disperses the underwater impact force, further improving the safety and reliability of the revetment structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a side view of the overall structure of the present invention;

[0017] Figure 3 is a front view of the overall structure of the present invention;

[0018] Figure 4 is a schematic diagram of the structure of the first floating cylinder in the present invention;

[0019] Figure 5 is a schematic diagram of the structure of the second floating cylinder in the present invention;

[0020] Figure 6 is a schematic diagram of the left-right symmetric distribution connection structure of the second floating cylinders of the rear floating belt in the present invention;

[0021] Figure 7 is a schematic diagram of the left-right stepped distribution connection structure of the second floating cylinders of the rear floating belt in the present invention;

[0022] In the figure: 1. Slope protection frame; 11. Support column; 12. Connecting chain; 13. Sprocket; 2. Buffer slope protection unit; 3. Front floating belt; 31. First floating cylinder; 32. First chain; 33. Fixed frame; 34. Sliding sleeve; 35. Compression spring; 36. Central shaft rod; 37. Side shaft rod; 38. Fixed disk; 4. Rear floating belt; 41. Second floating cylinder; 42. Second chain; 43. Central shaft disk; 44. Sealing plate; 45. Roller; 46. Guide rod; 47. Tensile spring; 5. Inner connecting plate; 51. Anti-slip sleeve. Detailed implementation manner

[0023] Please refer to Figures 1-7 In the embodiment of the present invention, an adaptive water-level-changing vertical revetment ecological buffer zone system includes: two slope protection frames 1 arranged in parallel, and the two slope protection frames 1 are distributed perpendicular to the revetment direction; support columns 11 vertically arranged and fixed on the slope protection frames 1; connecting chains 12 connected to each of the support columns 11; a plurality of buffer slope protection units 2 arranged in a row and parallel to the revetment, and both ends of the buffer slope protection units 2 are connected to the support columns 11 through the connecting chains 12. Among them, the space between the buffer slope protection units 2 can be used to plant water-tolerant plants such as reeds and calamus, which can not only reinforce the soil but also purify the water quality and improve the ecological environment. The distance between adjacent support columns 11 on the slope protection frame 1 should be maintained at about 5 m to ensure the coordinated layout between the buffer slope protection units 2, reduce the load on a single support column 11, and thus improve the impact resistance of the entire system.

[0024] In this embodiment, the buffer slope protection unit 2 is composed of a front floating belt 3 and a rear floating belt 4. Sprockets 13 are fixed at the upper ends of the support columns 11, and the connecting chains 12 are wound around the sprockets 13 in a V shape. Among them, in the case of low water level and normal water level, both the front floating belt 3 and the rear floating belt 4 can float on the water surface to ensure that the impact force can be effectively dispersed when the water flow passes through. At this time, the dual design of the front floating belt 3 and the rear floating belt 4 can better disperse the force of the water flow and reduce the impact on the revetment caused by direct impact; in the case of high water level change, the front floating belt 3 can still float with the change of the water level, while the rear floating belt 4 gradually sinks underwater under the traction of the connecting chain 12, so as to form a natural diversion effect with a certain height difference between the front floating belt 3 and the rear floating belt 4, and the water flow is further dispersed when passing through. It should be noted that the overall buoyancy of the front floating belt 3 is significantly higher than that of the rear floating belt 4. For example, the first floating cylinder 31 in the front floating belt 3 can adopt a low-density hollow structure (such as a polymer material) to ensure that even when the water level rises, the buoyancy can still maintain the floating state of the front floating belt 3.

[0025] As a preferred embodiment, the front floating belt 3 includes: a plurality of first floats 31 arranged in a row, with a first chain 32 connected between each of the first floats 31; a fixing frame 33 fixed inside the first float 31; a sliding sleeve 34 slidably connected to both ends of the fixing frame 33, with a compression spring 35 inclined and hinged on each of the sliding sleeves 34, and one end of the compression spring 35 connected to the fixing frame 33; a central shaft rod 36 horizontally connected inside the first float 31, with one end of the central shaft rod 36 connected to one of the sliding sleeves 34; two side shaft rods 37 symmetrically distributed, with one end of each of the two side shaft rods 37 connected to the other sliding sleeve 34; fixing discs 38 distributed on both sides of the first float 31 left and right, with each of the fixing discs 38 respectively connected to the other ends of the central shaft rod 36 and the side shaft rods 37. Therefore, when the front floating belt 3 is impacted by water flow, the first chain 32 between adjacent first floats 31 is completely straightened and extended under the impact, and at this time, the two side shaft rods 37 and the central shaft rod 36 inside the first float 31 gradually slide out of the first float 31 under the action of traction force, and the compression spring 35 is in a compressed state. The plurality of first floats 31 can be distributed in an arc shape (when the front floating belt 3 is not impacted by water flow, each first float 31 is distributed in a straight line), thereby forming an impact interception of the water flow.

[0026] In this embodiment, the rear floating belt 4 includes: a plurality of second floats 41 arranged in a row, with a second chain 42 connected between each of the second floats 41; a central shaft disc 43 rotatably connected inside the second float 41, with sealing plates 44 fixed on both inner sides of the second float 41, and rollers 45 rotatably connected to the sealing plates 44; a guide rod 46 slidably connected inside the roller 45, with one end of the guide rod 46 hinged to the central shaft disc 43; a tension spring 47, with both ends thereof respectively connected to the guide rod 46. Therefore, when the rear floating belt 4 is impacted by water flow, the guide rod 46 inside the second float 41 gradually slides out of the second float 41 under the action of traction force, and a relative deflection occurs between the central shaft disc 43 and the second float 41, and the rollers 45 on the sealing plates 44 can perform corresponding deflections, so that the guide rod 46 gradually inclines relative to the second float 41 during the outward sliding, and at this time, the tension spring 47 is in a stretched state until the two guide rods 46 are kept in the same straight line.

[0027] In this embodiment, the first floats 31 in the front floating belt 3 and the second floats 41 in the rear floating belt 4 are staggeredly distributed, improving the impact interception effect on the water flow.

[0028] In this embodiment, an inner connecting plate 5 is fixed on each roller 45 inside the second floating cylinder 41. A non-slip sleeve plate 51 is arranged in parallel on one side of the inner connecting plate 5. The non-slip sleeve plate 51 is slidably sleeved outside the guide rod 46, and a plurality of limiting springs are connected between the non-slip sleeve plate 51 and the roller 45. There is a strong anti-slip friction effect between the non-slip sleeve plate 51 and the guide rod 46, which can provide instantaneous braking force to the guide rod 46 through friction during the rapid sliding displacement of the guide rod 46, avoiding the guide rod 46 from slipping or losing control due to excessive speed.

[0029] As a preferred embodiment, during the reverse traction of the second chains 42 on both sides of the second floating cylinder 41, the two guide rods 46 are gradually arranged in a straight line. At this time, the second floating cylinder 41 is inclined relative to the guide rod 46, and the inclination angle between the second floating cylinder 41 and the guide rod 46 is not greater than 25°.

[0030] In this embodiment, the second floating cylinders 41 in each of the rear floating belts 4 are connected in a left-right symmetric distribution or a left-right stepped distribution. When the second floating cylinders 41 are connected in a left-right symmetric distribution, the rear floating belt 4 as a whole is in a straight-line layout, which can form a double impact interception with the first floating cylinders 31 in the front floating belt 3; when the second floating cylinders 41 are connected in a left-right stepped distribution, the rear floating belt 4 as a whole is in an oblique layout, which can guide the impact water flow in the vertical direction of the revetment to one side, causing the water flow to generate lateral flow when passing through, and reducing the direct impact on the revetment.

[0031] In this embodiment, the second floating cylinders 41 of the two rear floating belts 4 far from the revetment direction in the buffer revetment unit 2 are connected in a left-right stepped distribution; while the second floating cylinders 41 of the remaining rear floating belts 4 close to the revetment direction are connected in a left-right symmetric distribution. In this way, the oblique layout of the rear floating belt 4 can be fully utilized at a position far from the revetment to guide the impact water flow in the vertical direction to one side, reducing the direct impact on the revetment; while at a position close to the revetment direction, the straight-line layout of the rear floating belt 4 is used to cooperate with the first floating cylinders 31 in the front floating belt 3 to form a double impact interception.

[0032] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An ecological buffer zone system for a vertical revetment that adapts to water level changes, characterized in that, It includes: Two slope protection frames (1) are arranged in parallel, and the two slope protection frames (1) are distributed perpendicular to the direction of the revetment; The columns (11) are vertically arranged and fixed on the slope protection frames (1); The connecting chains (12) are connected to the respective columns (11); A plurality of buffer slope protection units (2) are arranged in parallel and are arranged in parallel with the revetment. The two ends of the buffer slope protection units (2) are connected to the columns (11) through the connecting chains (12); The buffer slope protection unit (2) is composed of a front floating belt (3) and a rear floating belt (4). Sprockets (13) are fixed at the upper ends of the columns (11), and the connecting chains (12) are wound around the sprockets (13) in a V shape; The front floating belt (3) includes: A plurality of first floating cylinders (31) are arranged. A first chain (32) is connected between the respective first floating cylinders (31); A fixing frame (33) is fixed inside the first floating cylinder (31); Sliding sleeves (34) are slidably connected to both ends of the fixing frame (33). Compression springs (35) are obliquely hinged on the respective sliding sleeves (34), and one end of the compression spring (35) is connected to the fixing frame (33); A central shaft rod (36) is horizontally connected inside the first floating cylinder (31), and one end of the central shaft rod (36) is connected to one of the sliding sleeves (34); Two side shaft rods (37) are symmetrically distributed. One end of the two side shaft rods (37) is connected to the other sliding sleeve (34); Fixing plates (38) are distributed on both sides of the first floating cylinder (31). The respective fixing plates (38) are correspondingly connected to the other ends of the central shaft rod (36) and the side shaft rods (37).

2. The vertical revetment ecological buffer zone system with adaptive water level change according to claim 1, characterized in that The rear floating belt (4) includes: A plurality of second floating cylinders (41) are arranged. A second chain (42) is connected between the respective second floating cylinders (41); A central shaft disc (43) is rotatably connected inside the second floating cylinder (41). Sealing plates (44) are fixed on both sides inside the second floating cylinder (41), and rollers (45) are rotatably connected to the sealing plates (44); A guide rod (46) is slidably connected inside the roller (45), and one end of the guide rod (46) is hinged to the central shaft disc (43); A tension spring (47) has its two ends respectively connected to the guide rod (46).

3. An ecological buffer zone system for a vertical revetment adaptable to water level changes according to claim 1, characterized in that, The first floating cylinders (31) in the front floating belt (3) and the second floating cylinders (41) in the rear floating belt (4) are arranged in a staggered manner.

4. An ecological buffer zone system for a vertical revetment adaptable to water level changes according to claim 2, characterized in that, Inner connecting plates (5) are fixed inside the second floating cylinders (41) on the respective rollers (45). An anti-slip sleeve plate (51) is arranged in parallel on one side of the inner connecting plate (5). The anti-slip sleeve plate (51) is slidably sleeved outside the guide rod (46), and a plurality of limiting springs are connected between the anti-slip sleeve plate (51) and the roller (45).

5. An ecological buffer zone system for a vertical revetment adaptable to water level changes according to claim 2, characterized in that, During the reverse traction of the second chains (42) on both sides of the second floating cylinders (41), the two guide rods (46) are gradually arranged in a straight line. At this time, the second floating cylinders (41) are inclined relative to the guide rods (46), and the inclination angle between the second floating cylinders (41) and the guide rods (46) is not greater than 25°.

6. The vertical revetment ecological buffer zone system with adaptive water level change according to claim 5, characterized in that, In the rear floating belt (4), each second floating cylinder (41) is connected in a left-right symmetric distribution or a left-right stepped distribution.

7. An ecological buffer zone system for a vertical revetment with adaptive water level changes according to claim 6, characterized in that, In the buffer slope protection unit (2), the second floating cylinders (41) of two of the rear floating belts (4) away from the bank are connected in a left-right stepped distribution; while the second floating cylinders (41) of the remaining rear floating belts (4) close to the bank are connected in a left-right symmetric distribution.

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