A hydraulic structure for bank protection and its bank protection method

Abstract

This invention relates to the field of bank protection engineering technology, and more particularly to a hydraulic structure for bank protection engineering and its bank protection method. The technical solution includes: a backflow section comprising an extended protective plate, an impact plate rotatably connected to the inner wall of the extended protective plate, a manually operated hydraulic pump fixedly installed inside the extended protective plate, and a transmission component between the manually operated hydraulic pump and the impact plate. When the water flow impact force is high, the larger the rotation angle of the impact plate and the longer the extension length of the push rod, the larger the bending angle of the bank protection steel plate and the greater the force of the backflowing water, thus increasing the flow force of the backflowing water and counteracting the impact force of the water within the riverbank; conversely, the smaller the water flow impact force, the smaller the rotation angle of the impact plate and the shorter the extension length of the push rod, the smaller the bending angle of the bank protection steel plate and the smaller the force of the backflowing water, thus reducing the flow force of the backflowing water and preventing sediment deposition on the bank due to the backflowing water.

Description

Technical Field

[0001] This invention relates to the field of bank protection engineering technology, and in particular to a hydraulic structure for bank protection engineering and a bank protection method thereof. Background Technology

[0002] Bank protection engineering has various hydraulic structures, mainly including slope-type, dam-type, and wall-type bank protection. Building materials or components are directly laid on the water-facing slope of the dike or beach to form a continuous covering layer. Arranged in the direction of water flow, it has little impact on water flow and does not affect navigation.

[0003] The patent document with publication number CN117868051A proposes a hydraulic structure for riverbank protection engineering. It involves longitudinally installing support square tubes 1 and 2 within the base layer on both sides of the river channel, and then laterally installing connecting pipes 1 and 2 below the river channel on both sides. Connecting pipes 1 and 2 are connected to support square tubes 1 and 2 respectively by corresponding clamps. This structure can be used to reinforce the entire riverbank, protect the inner side of the riverbank, reduce soil erosion, and increase the stability of the riverbank.

[0004] However, the backwater project reduces the impact by flushing back the water with the water in the channel. However, the impact of the water flow on the channel varies at different times. When the impact is weak, the backflow can easily lead to the deposition of silt on the channel. Summary of the Invention

[0005] The purpose of this invention is to address the problem of sediment deposition on riverbanks in the prior art by proposing a hydraulic structure for bank protection and a bank protection method thereof.

[0006] The technical solution of the present invention: A hydraulic structure for a bank protection project, comprising a stepped concrete bank protection, wherein a bank protection steel plate for withstanding water impact is fixedly installed at the platform of the concrete bank protection, and further comprising:

[0007] The return section includes an extended protective plate, an impact plate rotatably connected to the inner wall of the extended protective plate, a manual hydraulic pump fixedly installed inside the extended protective plate, a transmission component between the manual hydraulic pump and the impact plate, the manual hydraulic pump being connected to a hydraulic rod fixed inside the concrete revetment via a hydraulic pipe, a top rod being slidably connected inside the concrete revetment, and the end of the top rod being slidably connected to the revetment steel plate.

[0008] The buffer protection unit includes a fixed chamber that is fixedly installed inside the concrete revetment. The inner wall of the fixed chamber is slidably connected to a stop block. The stop block is fixedly installed at the end of a hydraulic rod. The end of the push rod slides along the stop block. The stop block has a stepped structure.

[0009] Optionally, the revetment steel plate adopts a plate-shaped structure made of spring steel. The side of the revetment steel plate is provided with multiple guide grooves that are equidistantly distributed along a straight line. The revetment steel plate is divided into upper and lower parts. The lower half of the revetment steel plate is attached to the vertical surface of the concrete revetment, and the upper half of the revetment steel plate is designed with an inclination.

[0010] Optionally, the transmission component includes a pair of gears, a pair of gears is fixedly installed at the shaft of the impact plate, a toothed plate is slidably connected to the inner wall of the extended protective plate, the pair of gears meshes with the toothed plate, a push rod is fixedly installed at the end of the toothed plate, and a buffer is provided between the push rod and the manual hydraulic pump.

[0011] Optionally, a guide cylinder is fixedly installed on the outer wall of the fixed chamber, and the outer wall of the top rod is slidably connected to the guide cylinder. Multiple revetment steel plates are provided and laid end to end on the vertical surface of the concrete revetment. Two symmetrically distributed top rods are provided on the side of each revetment steel plate.

[0012] Optionally, the abutment block is provided with a stepped groove, and the end of the top rod is rotatably connected to a roller, which rolls along the stepped groove.

[0013] Optionally, the buffer includes a spring telescopic rod, which is fixedly installed at the end of the push rod. A positioning plate is fixedly installed at the end of the spring telescopic rod, and the end of the positioning plate is fixedly connected to a manual hydraulic pump. A gravity positioning block is slidably connected to the inner wall of the concrete revetment.

[0014] Optionally, multiple gravity positioning blocks are provided and are distributed equidistantly along the spring telescopic rod in a straight line, with the spacing between two adjacent gravity positioning blocks being the same as the thickness of the positioning plate.

[0015] Optionally, the concrete revetment has a water level section inside, which includes a guide block. The guide block is fixedly installed on the top of the concrete revetment. A telescopic guide rod is fixedly installed on the bottom of the extended protective plate. The extended protective plate slides up and down along the inner wall of the guide block. A steel cable is fixedly installed on the top of the extended protective plate. A counterweight is fixedly installed at the end of the steel cable. A buoyancy tube is fixedly installed on the inner wall of the concrete revetment. The buoyancy block is fixedly connected to the counterweight through the steel cable.

[0016] Optionally, a guide wheel is rotatably connected to the top of the guide block, the steel cable slides along the guide wheel, the end of the buoyancy tube extends from the side of the concrete revetment, and the buoyancy tube is inclined along the direction of water flow.

[0017] A bank protection method for a hydraulic structure in a bank protection project, applied to the aforementioned hydraulic structure, comprises the following steps:

[0018] S1. First, due to the different water levels during the dry and flood seasons, the buoyancy tube forms a communicating vessel with the water in the river channel. The buoyancy block is affected by the water level and its height changes. The buoyancy block uses the counterweight to pull the steel cable to raise the extension protection plate so that the length of the impact plate submerged in the water is the same.

[0019] S2. Because the buoyancy tube is inclined along the direction of water flow, it prevents obstacles in the water from entering the interior of the buoyancy tube. As a narrow space, the buoyancy tube has small water fluctuations, thus preventing the water level inside the buoyancy tube from constantly changing.

[0020] S3. The impact plate rotates due to the impact of the water flow. The greater the impact force of the water flow, the greater the rotation angle of the impact plate. The impact plate uses a pair of gears to drive the toothed plate to move and push the push rod and the manual hydraulic pump. The manual hydraulic pump causes the hydraulic rod to push the stop block. The stop block pushes out the top rod. The top rod increases the bending angle of the upper part of the revetment steel plate and increases the water backflow force, so that the impact water flow and the backflow force cancel each other out.

[0021] S4. The abutment adopts a stepped structure, dividing the top rod into three lengths, and the upper plane of the fixed compartment supports the top rod to prevent the impact force from pushing the top rod against the abutment after the revetment steel plate is impacted.

[0022] S5. During the process of the spring telescopic rod pushing the positioning plate, the positioning plate abuts against the gravity positioning block, thereby fixing the length of the manual hydraulic pump and preventing the manual hydraulic pump from continuously extending and retracting due to water fluctuations, which would cause wear. At the same time, the gravity positioning block limits the positioning plate, preventing the push rod from stopping at the inclined surface of the block and thus failing to effectively position the push rod.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] 1. When the water flow impact force is large, the larger the rotation angle of the impact plate and the longer the extension length of the top rod, the larger the bending angle of the revetment steel plate and the greater the force of the backflowing water, thereby increasing the flow force of the backflowing water and counteracting the impact force of the water in the riverbank; the smaller the water flow impact force, the smaller the rotation angle of the impact plate and the shorter the extension length, the smaller the bending angle of the revetment steel plate and the smaller the force of the backflowing water, thereby reducing the flow force of the backflowing water and preventing the backflowing water from causing sediment deposition on the riverbank.

[0025] 2. In this invention, the abutment block adopts a stepped structure, dividing the top rod into three lengths, and the upper plane of the fixed compartment supports the top rod. This prevents the impact force from being transmitted to the hydraulic rod through the top rod after the revetment steel plate is impacted. During the process of the spring telescopic rod pushing the positioning plate, the positioning plate abuts against the gravity positioning block, thereby fixing the length of the manual hydraulic pump. This prevents the manual hydraulic pump from continuously extending and retracting due to water fluctuations, and avoids long-term stress and wear on the manual hydraulic pump and hydraulic rod, thereby improving the service life of the manual hydraulic pump and hydraulic rod.

[0026] 3. This invention uses a buoyancy tube to form a communicating vessel with the water in the river. The buoyancy block changes height due to the water level. The buoyancy block uses a counterweight to pull the steel cable to raise the extension protection plate, so that the length of the impact plate submerged in the water is the same. This avoids the impact plate being submerged in the water for different lengths, which would affect the length of the top rod extension, i.e., the curvature of the revetment steel plate, and thus affect the force of the backflow. Attached Figure Description

[0027] Figure 1 A schematic diagram of the overall structure of the present invention is provided;

[0028] Figure 2 A schematic diagram of the buoyancy tube structure of the present invention is provided;

[0029] Figure 3 A schematic diagram of the impact plate structure of the present invention is provided;

[0030] Figure 4 A cross-sectional schematic diagram of the extended protective plate structure of the present invention is provided;

[0031] Figure 5 for Figure 4 Enlarged schematic diagram of the block structure in part A;

[0032] Figure 6 A schematic diagram of the spring telescopic rod structure of the present invention is provided;

[0033] Figure 7 A schematic diagram of the push rod structure of the present invention is provided;

[0034] Figure 8 A schematic diagram of the counterweight structure of the present invention is provided;

[0035] Figure 9 A left-side view of the revetment steel plate structure of the present invention is provided.

[0036] Reference numerals: 1. Concrete revetment; 2. Revetment steel plate; 3. Flow guide groove; 4. Return section; 41. Extension protection plate; 42. Impact plate; 43. Gear; 44. Toothed plate; 45. Push rod; 46. Manual hydraulic pump; 47. Hydraulic rod; 48. Top rod; 49. Guide cylinder; 5. Buffer protection section; 51. Fixed chamber; 52. Abutment block; 53. Stepped groove; 54. Roller; 55. Spring telescopic rod; 56. Positioning plate; 57. Gravity positioning block; 6. Water level section; 61. Guide block; 62. Telescopic guide rod; 63. Steel cable; 64. Guide wheel; 65. Counterweight; 66. Buoyancy block; 67. Buoyancy tube. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0039] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Example 1: This example proposes a hydraulic structure for a bank protection project, such as... Figure 1 As shown, it includes a stepped concrete revetment 1, and a revetment steel plate 2 that withstands water impact is fixedly installed at the platform of the concrete revetment 1. The revetment steel plate 2 is a plate structure made of spring steel, and multiple guide grooves 3 are equidistantly distributed along a straight line on the side of the revetment steel plate 2.

[0043] The revetment steel plate 2 is divided into upper and lower parts. The lower half of the revetment steel plate 2 rests against the vertical surface of the concrete revetment 1, while the upper half of the revetment steel plate 2 is designed with an inclination. The revetment steel plate 2 is used for flow guidance; after the revetment steel plate 2 is impacted, the water flows along the revetment steel plate 2 and flows back, thus counteracting the impact of the water on the revetment steel plate 2, reducing the impact force on the riverbank.

[0044] like Figures 2 to 4 As shown, a return flow section 4 is provided at the top of the concrete revetment 1. The return flow section 4 includes an extended protective plate 41. An impact plate 42 is rotatably connected to the inner wall of the extended protective plate 41. A manual hydraulic pump 46 is fixedly installed inside the extended protective plate 41. A transmission component is provided between the manual hydraulic pump 46 and the impact plate 42. The transmission component includes a pair of gears 43. A pair of gears 43 is fixedly installed at the rotating shaft of the impact plate 42. The pair of gears 43 includes two meshing gears. One gear is fixedly connected to the rotating shaft of the impact plate 42. A toothed plate 44 is slidably connected to the inner wall of the extended protective plate 41. The other gear meshes with the toothed plate 44. A push rod 45 is fixedly installed at the end of the toothed plate 44. A buffer is provided between the push rod 45 and the manual hydraulic pump 46.

[0045] like Figure 9 As shown, the extended protective plate 41 serves as an extension to prevent backflowing water from impacting the impact plate 42. The impact plate 42 rotates due to the impact of the water flow; the greater the impact force, the greater the rotation angle of the impact plate 42. The impact plate 42 uses a gear 43 to drive the toothed plate 44 to move, pushing the push rod 45 and the manual hydraulic pump 46. The manual hydraulic pump 46 is connected to a hydraulic rod 47 fixed inside the concrete revetment 1 via a hydraulic pipe. A top rod 48 is slidably connected inside the concrete revetment 1, and the end of the top rod 48 is slidably connected to the revetment steel plate 2 to prevent the top rod 48 and the revetment steel plate 2 from getting stuck.

[0046] The manual hydraulic pump 46 causes the hydraulic rod 47 to push the stop block 52, and the stop block 52 pushes out the push rod 48. The push rod 48 increases the bending angle of the upper part of the revetment steel plate 2, increases the water backflow force, and makes the impact water flow and the backflow force cancel each other out.

[0047] The impact plate 42 rotates due to the impact of the water flow. The greater the impact force of the water flow, the greater the rotation angle of the impact plate 42. The impact plate 42 uses the gear 43 to drive the toothed plate 44 to move and push the push rod 45 and the manual hydraulic pump 46. The manual hydraulic pump 46 causes the hydraulic rod 47 to push the stop block 52. The stop block 52 pushes out the top rod 48. The top rod 48 increases the bending angle of the upper part of the revetment steel plate 2, increases the water backflow force, and makes the impact water flow and the backflow force cancel each other out, thus improving the service life.

[0048] The impact plate 42 rotates due to the impact of the water flow. The greater the impact force of the water flow, the greater the rotation angle of the impact plate 42. The longer the length of the manual hydraulic pump 46 is squeezed, the longer the moving distance of the hydraulic rod 47 and the push rod 48. The greater the extension length of the push rod 48, the greater the bending angle of the revetment steel plate 2 and the greater the force of the backflowing water.

[0049] The smaller the impact force of the water flow, the smaller the rotation angle of the impact plate 42, the shorter the length of the manual hydraulic pump 46 being squeezed, the shorter the moving distance of the hydraulic rod 47 and the top rod 48, the shorter the extension length of the top rod 48, the smaller the bending angle of the revetment steel plate 2, and the smaller the force of the backflowing water.

[0050] In this embodiment, when the water flow impact force is large, the larger the rotation angle of the impact plate 42 and the longer the extension length of the top rod 48, the larger the bending angle of the revetment steel plate 2 and the greater the force of the backflowing water, so as to increase the flow force of the backflowing water and counteract the impact force of the water in the riverbank; the smaller the water flow impact force, the smaller the rotation angle of the impact plate 42 and the shorter the extension length of 48, the smaller the bending angle of the revetment steel plate 2 and the smaller the force of the backflowing water, so as to reduce the flow force of the backflowing water and prevent the backflowing water from causing the sediment to be deposited on the riverbank.

[0051] Example 2, based on Example 1, proposes a hydraulic structure for a bank protection project, such as... Figures 4 to 6 As shown, the concrete revetment 1 is provided with a buffer protection part 5 inside. The buffer protection part 5 includes a fixed chamber 51 fixedly installed inside the concrete revetment 1. A stop block 52 is slidably connected to the inner wall of the fixed chamber 51. The stop block 52 is fixedly installed at the end of the hydraulic rod 47. The end of the push rod 48 slides along the stop block 52. The stop block 52 adopts a stepped structure.

[0052] The abutment block 52 adopts a stepped structure, dividing the top rod 48 into three lengths. The upper surface of the fixed chamber 51 supports the top rod 48, preventing the impact force from pushing the top rod 48 against the abutment block 52 after the revetment steel plate 2 is impacted. This avoids the manual hydraulic pump 46 and hydraulic rod 47 from being worn due to long-term stress, thereby improving the service life of the manual hydraulic pump 46 and hydraulic rod 47.

[0053] like Figure 7 As shown, a guide cylinder 49 is fixedly installed on the outer wall of the fixed chamber 51, and the outer wall of the top rod 48 is slidably connected to the guide cylinder 49. Multiple revetment steel plates 2 are set and laid end to end on the vertical surface of the concrete revetment 1. Two symmetrically distributed top rods 48 are set on the side of each revetment steel plate 2.

[0054] The stop block 52 has a stepped groove 53, and the end of the push rod 48 is rotatably connected to a roller 54. The stepped groove 53 and the roller 54 cooperate to reduce friction. The roller 54 rolls along the stepped groove 53, and the stepped groove 53 pulls the roller 54 back, that is, pulls the push rod 48 back.

[0055] The buffer includes a spring telescopic rod 55, which is fixedly installed at the end of the push rod 45. A positioning plate 56 is fixedly installed at the end of the spring telescopic rod 55. The end of the positioning plate 56 is fixedly connected to the manual hydraulic pump 46. Gravity positioning blocks 57 are slidably connected to the inner wall of the concrete revetment 1. Multiple gravity positioning blocks 57 are provided and are distributed equidistantly along the spring telescopic rod 55 in a straight line. The distance between two adjacent gravity positioning blocks 57 is the same as the thickness of the positioning plate 56.

[0056] The gravity positioning blocks 57 act as an obstacle to the movement of the positioning plate 56. When the positioning plate 56 moves between the two gravity positioning blocks 57, the end of the push rod 48 abuts against the plane of the stepped groove 53. After the spring telescopic rod 55 is fully compressed, it directly pushes the positioning plate 56. During the process of the spring telescopic rod 55 pushing the positioning plate 56, the positioning plate 56 abuts against the gravity positioning blocks 57, thereby fixing the length of the manual hydraulic pump 46 and preventing the manual hydraulic pump 46 from continuously extending and retracting due to water fluctuations, which would cause wear.

[0057] In this embodiment, the abutment block 52 adopts a stepped structure, dividing the top rod 48 into three lengths. The upper plane of the fixed chamber 51 supports the top rod 48, preventing the impact force from being transmitted to the hydraulic rod 47 after the revetment steel plate 2 is impacted. During the process of the spring telescopic rod 55 pushing the positioning plate 56, the positioning plate 56 abuts against the gravity positioning block 57, thereby fixing the length of the manual hydraulic pump 46. This prevents the manual hydraulic pump 46 from continuously extending and retracting due to water fluctuations, and avoids long-term stress and wear on the manual hydraulic pump 46 and hydraulic rod 47, thereby improving the service life of the manual hydraulic pump 46 and hydraulic rod 47.

[0058] Example 3: Based on Example 1 or 2 above, this example proposes a hydraulic structure for a bank protection project, such as... Figures 2 to 8 As shown, a water level section 6 is provided inside the concrete revetment 1. The water level section 6 includes a guide block 61, which is fixedly installed on the top of the concrete revetment 1. A telescopic guide rod 62 is fixedly installed on the bottom of the extension protection plate 41. The extension protection plate 41 slides up and down along the inner wall of the guide block 61. A steel cable 63 is fixedly installed on the top of the extension protection plate 41. A counterweight block 65 is fixedly installed at the end of the steel cable 63. A buoyancy tube 67 is fixedly installed on the inner wall of the concrete revetment 1. The buoyancy block 66 is fixedly connected to the counterweight block 65 through the steel cable 63.

[0059] Due to the different water levels during the dry and flood seasons, the buoyancy tube 67 forms a communicating vessel with the water in the river channel. The buoyancy block 66 is affected by the water level and its height changes. The buoyancy block 66 uses the counterweight block 65 to pull the steel cable 63 to raise the extension protection plate 41 so that the length of the impact plate 42 submerged in the water is the same.

[0060] When the water level in the river changes, the height of the buoyancy block 66 changes. The steel cable 63 and the counterweight block 65 work together to make the height of the extension protection plate 41 move in the same way when the height of the buoyancy block 66 changes, so that the length of the part of the impact plate 42 submerged in water is always fixed.

[0061] The top of the guide block 61 is rotatably connected to the guide wheel 64, the steel cable 63 slides along the guide wheel 64, and the end of the buoyancy tube 67 extends from the side of the concrete revetment 1. The buoyancy tube 67 is inclined along the direction of water flow.

[0062] Because the buoyancy tube 67 is inclined along the direction of water flow, it prevents obstacles in the water from entering the interior of the buoyancy tube 67. As a narrow space, the water fluctuation inside the buoyancy tube 67 is small, thus preventing the water level inside the buoyancy tube 67 from changing continuously.

[0063] In this embodiment, the buoyancy tube 67 forms a communicating vessel with the water in the river channel. The buoyancy block 66 changes height due to the influence of the water level. The buoyancy block 66 uses the counterweight block 65 to pull the steel cable 63 to raise the extension protection plate 41, so that the length of the impact plate 42 submerged in the water is the same. This avoids the impact plate 42 being submerged in the water at different lengths, which would affect the length of the top rod 48 extending out, i.e., the curvature of the revetment steel plate 2 is different, thus affecting the force of the backflow water.

[0064] A bank protection method for a hydraulic structure in a bank protection project, applied to the aforementioned hydraulic structure, comprises the following steps:

[0065] S1. First, due to the different water levels during the dry and flood seasons, the buoyancy tube 67 forms a communicating vessel with the water in the river channel. The buoyancy block 66 is affected by the water level and its height changes. The buoyancy block 66 uses the counterweight block 65 to pull the steel cable 63 to raise the extension protection plate 41 so that the impact plate 42 is submerged in the water for the same length.

[0066] S2. Because the buoyancy tube 67 is inclined along the direction of water flow, it prevents obstacles in the water from entering the interior of the buoyancy tube 67. As a narrow space, the water ripples within the buoyancy tube 67, thus preventing the water level inside the buoyancy tube 67 from changing continuously.

[0067] S3. The impact plate 42 rotates due to the impact of the water flow. The greater the impact force of the water flow, the greater the rotation angle of the impact plate 42. The impact plate 42 uses the gear 43 to drive the toothed plate 44 to move and push the push rod 45 and the manual hydraulic pump 46. The manual hydraulic pump 46 causes the hydraulic rod 47 to push the stop block 52. The stop block 52 pushes out the top rod 48. The top rod 48 increases the bending angle of the upper part of the revetment steel plate 2, increases the water backflow force, and makes the impact water flow and the backflow force cancel each other out.

[0068] S4. The abutment block 52 adopts a stepped structure, dividing the top rod 48 into three lengths, and the upper plane of the fixed chamber 51 supports the top rod 48 to prevent the impact force from pushing the top rod 48 to the abutment block 52 after the revetment steel plate 2 is impacted.

[0069] S5. During the process of the spring telescopic rod 55 pushing the positioning plate 56, the positioning plate 56 abuts against the gravity positioning block 57, thereby fixing the length of the manual hydraulic pump 46 and preventing the manual hydraulic pump 46 from continuously extending and retracting due to water fluctuations, which would cause wear. At the same time, the gravity positioning block 57 limits the positioning plate 56, preventing the push rod 48 from stopping at the inclined surface of the abutment block 52, thus failing to effectively position the push rod 48.

[0070] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A revetment work hydraulic structure comprising a stepped concrete revetment (1) having a water impact- receiving revetment steel plate (2) fixedly installed at a platform of the concrete revetment (1), characterized in that, Also includes: The return section (4) includes an extended protective plate (41), an impact plate (42) is rotatably connected to the inner wall of the extended protective plate (41), a manual hydraulic pump (46) is fixedly installed inside the extended protective plate (41), a transmission component is provided between the manual hydraulic pump (46) and the impact plate (42), the manual hydraulic pump (46) is connected to a hydraulic rod (47) fixed inside the concrete revetment (1) through a hydraulic pipe, a top rod (48) is slidably connected inside the concrete revetment (1), and the end of the top rod (48) is slidably connected to the revetment steel plate (2); The buffer protection unit (5) includes a fixed chamber (51) fixedly installed inside the concrete revetment (1). The inner wall of the fixed chamber (51) is slidably connected to a stop block (52). The stop block (52) is fixedly installed at the end of the hydraulic rod (47). The end of the top rod (48) slides along the stop block (52). The stop block (52) adopts a stepped structure. The revetment steel plate (2) is made of spring steel in a plate-like structure. The side of the revetment steel plate (2) is provided with multiple flow guide grooves (3) distributed equidistantly along a straight line. The revetment steel plate (2) is divided into upper and lower parts. The lower half of the revetment steel plate (2) is attached to the vertical surface of the concrete revetment (1). The upper half of the revetment steel plate (2) is designed with an inclination. The transmission component includes a pair of gears (43), the pair of gears (43) is fixedly installed at the shaft of the impact plate (42), the inner wall of the extension protection plate (41) is slidably connected with a toothed plate (44), the pair of gears (43) and the toothed plate (44) are meshed, the end of the toothed plate (44) is fixedly installed with a push rod (45), and a buffer is provided between the push rod (45) and the manual hydraulic pump (46); The outer wall of the fixed chamber (51) is fixedly installed with a guide cylinder (49), and the outer wall of the top rod (48) is slidably connected to the guide cylinder (49). Multiple revetment steel plates (2) are provided and laid end to end on the vertical surface of the concrete revetment (1). Two symmetrically distributed top rods (48) are provided on the side of each revetment steel plate (2).

2. A revetment structure according to claim 1, wherein: The abutment (52) has a stepped groove (53), and the end of the top rod (48) is rotatably connected to a roller (54), which rolls along the stepped groove (53).

3. A revetment structure according to claim 2, wherein: The buffer includes a spring telescopic rod (55), which is fixedly installed at the end of the push rod (45). A positioning plate (56) is fixedly installed at the end of the spring telescopic rod (55). The end of the positioning plate (56) is fixedly connected to a manual hydraulic pump (46). A gravity positioning block (57) is slidably connected to the inner wall of the concrete revetment (1).

4. The hydraulic structure for a bank protection project according to claim 3, characterized in that: Multiple gravity positioning blocks (57) are provided and are distributed equidistantly along the spring telescopic rod (55). The distance between two adjacent gravity positioning blocks (57) is the same as the thickness of the positioning plate (56).

5. A hydraulic structure for a bank protection project according to claim 4, characterized in that: The concrete revetment (1) is provided with a water level section (6), which includes a guide block (61). The guide block (61) is fixedly installed on the top of the concrete revetment (1). A telescopic guide rod (62) is fixedly installed on the bottom of the extension protection plate (41). The extension protection plate (41) slides up and down along the inner wall of the guide block (61). A steel cable (63) is fixedly installed on the top of the extension protection plate (41). A counterweight block (65) is fixedly installed at the end of the steel cable (63). A buoyancy tube (67) is fixedly installed on the inner wall of the concrete revetment (1). The buoyancy block (66) is fixedly connected to the counterweight block (65) through the steel cable (63).

6. A hydraulic structure for a bank protection project according to claim 5, characterized in that: The top of the guide block (61) is rotatably connected to a guide wheel (64), the steel cable (63) slides along the guide wheel (64), the end of the buoyancy tube (67) extends from the side of the concrete revetment (1), and the buoyancy tube (67) is inclined along the direction of water flow.

7. A method for protecting a bank using a hydraulic structure in a bank protection project, applied to the hydraulic structure of a bank protection project as described in claim 6 above, comprising the following steps: S1. First, due to the different water levels during the dry and flood seasons, the buoyancy tube (67) forms a communicating vessel with the water in the river channel. The buoyancy block (66) is affected by the water level and its height changes. The buoyancy block (66) uses the counterweight block (65) to pull the steel cable (63) to raise the extension protection plate (41) so that the length of the impact plate (42) submerged in the water is the same. S2. Since the buoyancy tube (67) is inclined along the direction of water flow, it prevents obstacles in the water from entering the interior of the buoyancy tube (67). As a narrow space, the water fluctuation inside the buoyancy tube (67) is small, thus preventing the water level inside the buoyancy tube (67) from changing continuously. S3. The impact plate (42) rotates due to the impact of the water flow. The greater the impact force of the water flow, the greater the rotation angle of the impact plate (42). The impact plate (42) uses the gear (43) to drive the tooth plate (44) to move and push the push rod (45) and the manual hydraulic pump (46). The manual hydraulic pump (46) causes the hydraulic rod (47) to push the block (52). The block (52) pushes out the top rod (48). The top rod (48) increases the bending angle of the upper part of the revetment steel plate (2) and increases the water backflow force, so that the impact water flow and the backflow force cancel each other out. S4. The abutment block (52) adopts a stepped structure, dividing the top rod (48) into three lengths, and the upper plane of the fixed compartment (51) supports the top rod (48) to prevent the top rod (48) from pushing the abutment block (52) after the revetment steel plate (2) is impacted. S5. During the process of the spring telescopic rod (55) pushing the positioning plate (56), the positioning plate (56) abuts against the gravity positioning block (57), thereby fixing the length of the manual hydraulic pump (46) and preventing the manual hydraulic pump (46) from continuously extending and retracting due to water fluctuations, resulting in wear. At the same time, the gravity positioning block (57) limits the positioning plate (56) to prevent the push rod (48) from stopping at the inclined surface of the abutment block (52), thus failing to effectively position the push rod (48).

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