A protection device and method for channel maintenance engineering bank revetment

Abstract

The application belongs to the technical field of bank slope protection, and particularly discloses a protection device and method for channel maintenance engineering bank slope revetment, which comprises a concrete revetment, wherein the concrete revetment is trapezoidal and the two sides are inclined, one side of the concrete revetment is provided with back slope soil, a drainage channel is formed in the concrete revetment near the bottom edge, and an adjusting groove is formed in one side of the drainage channel; the application can induce water waves caused by passing ships through the floating plate, drive the floating plate to slide up and down through the fluctuation of the waves, pull the first lifting rope up and down through the cooperation of the disc-shaped clockwork, drive the generator shaft to rotate in the generator shell to generate electricity, and the subsequent opening of the cutting device can trigger the positioning device at the same time, so that the water flow in the riverbed can be discharged into the drainage channel through the through hole, so as to achieve the purpose of drainage, and the power generation device can also work during the drainage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bank protection, in particular to a protection device and method for bank protection of channel maintenance engineering. BACKGROUND

[0002] The channel refers to the passage or route for ships or aircraft to navigate. When ships navigate in the river channel, the ships will generate water waves. If the generated water waves are too large, the water waves will impact the bank slope, which is easy to cause soil erosion of the bank slope, resulting in bank collapse and safety accidents.

[0003] In order to avoid soil erosion caused by water waves impacting the bank slope and to avoid safety accidents, a revetment dam can be built on both sides of the channel. The revetment dam can protect the bank slope, but the revetment dam is also easy to be damaged under the impact of large water waves for a long time. SUMMARY

[0004] The present application provides a protection device and method for bank protection of channel maintenance engineering to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a protection device for bank protection of channel maintenance engineering, comprising a concrete dike, the concrete dike is trapezoidal, and the two sides are inclined, one side of the concrete dike is provided with a back slope soil, a drainage channel is formed in the inner part of the concrete dike close to the bottom edge, an adjusting groove is formed on one side of the drainage channel, and a drainage port penetrating into the adjusting groove is formed on one side of the concrete dike.

[0006] The inner part of the drainage port is provided with a power generation device, the inner part of the adjusting groove is provided with a cutting device, the inner part of the concrete dike is provided with a positioning device, two side openings are formed on one side of the concrete dike above the drainage port, and a through opening is formed between the bottoms of the two side openings.

[0007] Preferably, the through opening and the bottoms of the two drainage ports are in communication with each other, a U-shaped carriage is slidably arranged in the through opening, the two ends of the U-shaped carriage correspondingly extend into the inner part of the side opening, a floating plate is fixed between the two ends of the U-shaped carriage, one side of the floating plate extends horizontally to the other side of the concrete dike, and the bottom of the through opening and the top of the adjusting groove are in communication with each other.

[0008] Preferably, the cutting device comprises a partition plate, the partition plate is slidably and sealingly connected between the inner walls of the adjusting groove, a through opening penetrating from one side to the other side is formed in one side of the partition plate, the through opening is opposite to the drainage port, a second pull rope is arranged on the top of the partition plate, one end of the second pull rope is connected to the bottom of the U-shaped carriage, and the top of the partition plate is inclined close to one side edge.

[0009] Preferably, the bottom of the adjusting groove is provided with a cylindrical groove, a circular plate is slidably arranged between the inner walls of the cylindrical groove, a pull spring is fixed to the bottom of the circular plate, the bottom of the pull spring is fixed to the inner bottom surface of the cylindrical groove, a pull rod is fixed to the top of the circular plate, the top of the pull rod is slidably penetrated into the inside of the adjusting groove, and the bottom of the pull rod is arranged on the bottom of the partition plate.

[0010] Preferably, the positioning device comprises a pressing rod, a reciprocating cavity is arranged in the inside of the concrete barrier, the pressing rod is arranged in the reciprocating cavity, a pulling flow channel is arranged in the inside of the concrete barrier, one end of the pulling flow channel is penetrated into the inside of the adjusting groove, one end of the pressing rod is slidably penetrated into the inside of the pulling flow channel, the other end of the pressing rod is slidably penetrated into the inside of the adjusting groove, and the other end of the pressing rod is opposite to the inclined surface of one side of the partition plate.

[0011] Preferably, the outer surface of the pressing rod is fixed with a sliding ring, the sliding ring is slidably arranged between the inner walls of the reciprocating cavity, a reciprocating spring is fixed to one side of the sliding ring, one end of the reciprocating spring is fixed to the inner wall of the reciprocating cavity, a concave pad is fixed to the inner wall of one side of the pulling flow channel, and the concave surface of the concave pad is opposite to one end of the pressing rod.

[0012] Preferably, the power generation device comprises a generator housing and a generator rotating shaft, the generator rotating shaft is rotatably connected to the inside of the generator housing, one end of the generator rotating shaft is slidably penetrated into the outside of the generator housing, the generator housing is arranged in the inside of the water outlet, a plurality of supporting rods are equidistantly fixed to the outer surface of the generator housing in the circumferential direction, one end of each of the plurality of supporting rods is correspondingly fixed to the inner wall of the water outlet, a plurality of vortex blades are equidistantly fixed to the outer surface of the generator rotating shaft in the circumferential direction, and each of the plurality of vortex blades is arranged outside the generator housing.

[0013] Preferably, the outer surface of the generator rotating shaft is provided with an annular groove, a driving ring is slidably sleeved in the inside of the annular groove, the outer surface of the driving ring is provided with an outer ring groove, the driving ring is arranged in the inside of the generator housing, a first lifting rope is arranged in the inside of the pulling flow channel, the top of the first lifting rope is connected to the bottom of the U-shaped sliding bracket, the bottom end of the first lifting rope is slidably penetrated into the inside of the generator housing, and is laminated and wound on the inner bottom surface of the outer ring groove.

[0014] Preferably, the inner wall of the driving ring is provided with an inner ring groove, a plurality of ratchets are equidistantly fixed to the inner bottom surface of the annular groove in the circumferential direction, a plurality of spring tabs are equidistantly arranged on the inner wall of the inner ring groove in the circumferential direction, each of the plurality of spring tabs is inclined, and is slidably attached to one side of the inclined surface of the plurality of ratchets, a circular ring groove is arranged on one side of the outer surface of the driving ring, a disc-shaped mainspring is fixed to one side of the inner wall of the circular ring groove, and one end of the disc-shaped mainspring is fixed to one side of the inner wall of the annular groove.

[0015] The application also provides a protection method for a channel maintenance engineering bank slope revetment, which is applied to a protection device for a channel maintenance engineering bank slope revetment.

[0016] Step S1: The device senses the water waves caused by the passing ships through the floating plate, and the floating plate slides up and down with the fluctuation of the waves, and the first pull rope is pulled up and down with the cooperation of the disc-shaped spring, so as to drive the generator shaft to rotate inside the generator shell to generate electricity, and the subsequent opening of the cutting device will trigger the positioning device at the same time, at this time, the water flow in the riverbed can flow into the drainage channel through the through hole to achieve the purpose of drainage, and the power generation device will also work when draining;

[0017] Step S2: When the cutting device works, the floating plate moves upward to a certain position, and the second pull rope drives the partition plate to slide upward, when the partition plate slides to the position where the drainage port is opposite to the through hole, the water flow in the riverbed can flow into the drainage channel and be discharged;

[0018] Step S3: When the positioning device works, the partition plate slides upward and contacts the one end of the pressure rod through the inclined surface on one side, so as to push the pressure rod to one side, and the other end of the pressure rod presses the first pull rope in the notch of the concave pad, so as to position the first pull rope;

[0019] Step S4: When the power generation device works, the up-and-down floating of the floating plate will pull the first pull rope, since the bottom of the first pull rope is stacked and wound in the outer ring groove on the outer surface of the driving ring, the driving ring will rotate, and since the spring tab on the inner ring groove on the inner side of the driving ring is in close contact with the ratchet, the driving ring and the generator shaft are clamped under the limitation of the ratchet, so when the driving ring rotates, the generator shaft will rotate synchronously to generate electricity.

[0020] Compared with the prior art, the application has the following advantages:

[0021] 1、The device senses the water waves caused by the passing ships through the floating plate, and the floating plate slides up and down with the fluctuation of the waves, and the first pull rope is pulled up and down with the cooperation of the disc-shaped spring, so as to drive the generator shaft to rotate inside the generator shell to generate electricity, and when the water flow in the riverbed is too high and exceeds the warning water level, at this time, the passing ships will generate larger water waves, which can easily cause the dam to break, so it is necessary to discharge the water flow in the riverbed outward, and when the water surface in the riverbed is too high, the floating plate will slide upward synchronously, the partition plate will be pulled upward to the position where the drainage port is opposite to the through hole through the second pull rope, the cutting device will be opened, and the positioning device will be triggered at the same time, at this time, the water flow in the riverbed can flow into the drainage channel through the through hole to achieve the purpose of drainage, and the power generation device will also work when draining;

[0022] 2. In this invention, when the cutting device is working, if the water level inside the riverbed has not reached the warning height, the rising of the float will only pull the first lifting rope, and the second lifting rope will not be pulled. When the water level inside the riverbed reaches the warning height, it will simultaneously drive the float to move upward to a certain position. At this time, the upward movement of the float will drive the partition plate to slide upward through the second lifting rope. When the partition plate slides to the point where the drainage outlet and the through-hole are opposite, the water inside the riverbed can flow into the drainage channel and be discharged. Furthermore, the positioning device will be triggered to work simultaneously when the partition plate slides upward.

[0023] 3. In this invention, when the positioning device is working, when the partition plate slides upward, it will contact one end of the pressure rod through the inclined surface on one side, pushing the pressure rod to one side, so that the other end of the pressure rod presses the first lifting rope into the recess of the concave pad, thereby positioning the first lifting rope.

[0024] 4. In this invention, when the power generation device is operating, if a boat passes through the riverbed before reaching the warning line, causing waves to impact the floating plate and causing it to float up and down, it will pull the first lifting rope. Since the bottom of the first lifting rope is wrapped around the outer ring groove on the outer surface of the drive ring, it will cause the drive ring to rotate. Furthermore, because the spring plate on the inner ring groove of the drive ring engages with the ratchet, the ratchet limits the engagement between the drive ring and the generator shaft. Therefore, when the drive ring rotates, it will drive the generator to rotate. The shaft rotates synchronously to generate electricity. While rotating, the disc spring contracts. During subsequent reset, the rotational torque of the disc spring drives the drive ring to rotate in the opposite direction, causing the first lifting rope to overlap and wind around the drive ring again. When the water level in the riverbed reaches the warning line and water needs to be discharged, the water flows through the drain outlet and impacts the vortex blades, causing them to rotate. The direction of rotation is the same as the direction of rotation of the drive ring when the disc spring resets. Therefore, the generator shaft can be driven to rotate and generate electricity during water discharge without causing mechanical interference. Attached Figure Description

[0025] Figure 1 This invention provides a side-view three-dimensional structural diagram of a protective device for bank slope protection in waterway maintenance engineering;

[0026] Figure 2 This invention provides a side-view three-dimensional structural diagram of a concrete embankment in a protective device for bank protection in waterway maintenance engineering.

[0027] Figure 3 This invention provides a three-dimensional cross-sectional view of one side of a concrete revetment in a protective device for bank protection in waterway maintenance engineering.

[0028] Figure 4Another side sectional view of the concrete dike in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure;

[0029] Figure 5 Another side sectional view of the power generation device in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure;

[0030] Figure 6 Another side sectional view of the power generation device in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure;

[0031] Figure 7 A sectional view of the driving ring in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure;

[0032] Figure 8 A sectional view of the driving ring in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure; Figure 3 A sectional view of the driving ring in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure;

[0033] Figure 9 A sectional view of the driving ring in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure; Figure 3 A sectional view of the driving ring in the protection device for the bank protection of the waterway maintenance engineering is shown in the schematic diagram of the perspective structure.

[0034] In the figure: 1, concrete dike; 2, back slope soil; 3, drainage port; 4, side port; 5, floating plate; 6, U-shaped carriage; 7, drainage channel; 8, through port; 9, generator shell; 10, partition plate; 11, through port; 12, pulling flow channel; 13, adjusting groove; 14, first pulling rope; 15, second pulling rope; 16, concave pad; 17, reciprocating cavity; 18, reciprocating spring; 19, pressing rod; 20, sliding ring; 21, cylindrical groove; 22, pulling rod; 23, pulling spring; 24, circular plate; 25, generator rotating shaft; 26, vortex blade; 27, support rod; 28, annular groove; 29, driving ring; 30, ratchet; 31, spring tab; 32, outer ring groove; 33, inner ring groove; 34, disc-shaped spring; 35, circular ring groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] Please refer to Figures 1-9The application provides a technical scheme: a protection device for channel maintenance engineering bank slope revetment, which comprises a concrete dike 1, the concrete dike 1 is trapezoidal, and the two sides are inclined, one side of the concrete dike 1 is provided with a back slope soil 2, a drainage channel 7 is formed in the concrete dike 1 close to the bottom edge, an adjusting groove 13 is formed in one side of the drainage channel 7, and a drainage port 3 is formed in one side of the concrete dike 1 and penetrates into the adjusting groove 13;

[0037] The inside of the drainage port 3 is provided with a power generation device, the inside of the adjusting groove 13 is provided with a cutting device, the inside of the concrete dike 1 is provided with a positioning device, two side openings 4 are formed in one side of the concrete dike 1 above the drainage port 3, a through opening 8 is formed between the bottoms of the two side openings 4, the through opening 8 is in communication with the bottoms of the two drainage ports 3, a U-shaped sliding frame 6 is slidably arranged in the inside of the through opening 8, the two ends of the U-shaped sliding frame 6 extend into the inside of the side opening 4, a floating plate 5 is fixed between the two ends of the U-shaped sliding frame 6, one side of the floating plate 5 extends horizontally to the other side of the concrete dike 1, and the bottom of the through opening 8 is in communication with the top of the adjusting groove 13.

[0038] The effect achieved is that the floating plate 5 senses the water surface waves caused by the passing ships, the floating plate 5 is driven to slide up and down by the fluctuation of the waves, the first pull rope 14 is pulled up and down in cooperation with the disc-shaped watch spring 34, so that the generator shaft 25 rotates in the generator shell 9 to generate electricity, and when the water flow in the riverbed is too high and exceeds the warning water level, the passing ships will generate larger water surface waves, which can easily cause the dike to break, so it is necessary to discharge the water flow in the riverbed outward, and when the water surface in the riverbed is too high, the floating plate 5 is driven to slide upward, the second pull rope 15 pulls the partition plate 10 upward to the position where the drainage port 3 is opposite to the penetration port 11, the cutting device is opened, and the positioning device is triggered at the same time, so that the water flow in the riverbed can be discharged into the drainage channel 7 through the penetration port 11, so as to achieve the purpose of drainage, and the power generation device is also driven to work during the drainage.

[0039] As Figure 3 , Figure 4 , Figure 8 and Figure 9As shown, the cutting device includes a partition plate 10 which is slidingly and sealingly connected between the inner walls of the adjusting groove 13, one side of the partition plate 10 is provided with a through hole 11 which penetrates to the other side and is opposite to the drainage opening 3, the top of the partition plate 10 is provided with a second pull rope 15, one end of the second pull rope 15 is connected to the bottom of the U-shaped slide 6, the top of the partition plate 10 is inclined near one side edge, the bottom of the adjusting groove 13 is provided with a cylindrical groove 21, a circular plate 24 is slidingly arranged between the inner walls of the cylindrical groove 21, the bottom of the circular plate 24 is fixed with a pulling spring 23, the bottom of the pulling spring 23 is fixed to the inner bottom surface of the cylindrical groove 21, the top of the circular plate 24 is fixed with a pulling rod 22, the top of the pulling rod 22 slidingly penetrates to the inside of the adjusting groove 13 and is installed at the bottom of the partition plate 10.

[0040] When the water level inside the riverbed does not reach the warning height, the upward movement of the floating plate 5 only pulls the first pull rope 14, and the second pull rope 15 is not pulled. When the water level inside the riverbed reaches the warning height, it will simultaneously drive the floating plate 5 to move upward to a certain position. At this time, the upward movement of the floating plate 5 will drive the partition plate 10 to slide upward through the second pull rope 15. When the partition plate 10 slides to the position where the drainage opening 3 is opposite to the through hole 11, the water flow inside the riverbed can flow into the drainage channel 7 and be discharged. When the partition plate 10 slides upward, the positioning device will be triggered simultaneously.

[0041] As shown in Figure 3 and Figure 8 , the positioning device includes a pressing rod 19, the inside of the concrete embankment 1 is provided with a reciprocating cavity 17, the pressing rod 19 is arranged in the reciprocating cavity 17, the inside of the concrete embankment 1 is provided with a pulling flow channel 12, one end of the pulling flow channel 12 penetrates to the inside of the adjusting groove 13, one end of the pressing rod 19 slidingly penetrates to the inside of the pulling flow channel 12, the other end of the pressing rod 19 slidingly penetrates to the inside of the adjusting groove 13 and is opposite to the inclined surface on one side of the partition plate 10, the outer surface of the pressing rod 19 is fixed with a sliding ring 20, the sliding ring 20 is slidingly arranged between the inner walls of the reciprocating cavity 17, one side of the sliding ring 20 is fixed with a reciprocating spring 18, one end of the reciprocating spring 18 is fixed to the inner wall of the reciprocating cavity 17, one side of the inner wall of the pulling flow channel 12 is fixed with a concave pad 16, and the concave surface of the concave pad 16 is opposite to one end of the pressing rod 19.

[0042] When the partition plate 10 slides upward, it will contact one end of the pressing rod 19 through the inclined surface on one side, push the pressing rod 19 to one side, and make the other end of the pressing rod 19 press the first pull rope 14 in the recess of the concave pad 16, so as to position the first pull rope 14;

[0043] As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 ,Figure 7 and Figure 8 As shown in the figure, the power generation device comprises a generator housing 9 and a generator rotating shaft 25, the generator rotating shaft 25 is rotationally connected inside the generator housing 9, and one end of the generator rotating shaft 25 is slidably penetrated to the outside of the generator housing 9, the generator housing 9 is located inside the water outlet 3, the outer surface of the generator housing 9 is fixed with a plurality of supporting rods 27 equidistantly in the circumferential direction, one end of each of the plurality of supporting rods 27 is correspondingly fixed on the inner wall of the water outlet 3, the outer surface of the generator rotating shaft 25 is fixed with a plurality of vortex blades 26 equidistantly in the circumferential direction, each of the plurality of vortex blades 26 is located outside the generator housing 9, the outer surface of the generator rotating shaft 25 is provided with an annular groove 28, the inside of the annular groove 28 is slidably fitted with a driving ring 29, the outer surface of the driving ring 29 is provided with an outer ring groove 32, the driving ring 29 is located inside the generator housing 9, the inside of the pull flow channel 12 is provided with a first pull rope 14, the top of the first pull rope 14 is connected to the bottom of the U-shaped sliding frame 6, the bottom end of the first pull rope 14 is slidably penetrated to the inside of the generator housing 9, and is overlapped and wound on the inner bottom surface of the outer ring groove 32, the inner wall of the driving ring 29 is provided with an inner ring groove 33, the inner bottom surface of the annular groove 28 is fixed with a plurality of ratchet teeth 30 equidistantly in the circumferential direction, the inner wall of the inner ring groove 33 is provided with a plurality of spring tabs 31 equidistantly in the circumferential direction, each of the plurality of spring tabs 31 is inclined, and is slidably attached to one side of the inclined surface of the plurality of ratchet teeth 30, one side of the outer surface of the driving ring 29 is provided with a circular groove 35, a disc-shaped clock spring 34 is fixed on one side of the inner wall of the circular groove 35, and one end of the disc-shaped clock spring 34 is fixed on one side of the inner wall of the annular groove 28.

[0044] The effect achieved is that when the water surface inside the riverbed does not reach the warning line, at this time the water surface is impacted on the floating plate 5 by the waves generated by the passing boats inside the riverbed, driving the floating plate 5 to float up and down, which will pull the first pull rope 14, since the bottom of the first pull rope 14 is overlapped and wound in the outer ring groove 32 on the outer surface of the driving ring 29, it will drive the driving ring 29 to rotate, and since the spring tabs 31 on the inner ring groove 33 of the driving ring 29 are attached to the ratchet teeth 30, the driving ring 29 and the generator rotating shaft 25 are clamped to each other under the limitation of the ratchet teeth 30, so that the driving ring 29 will drive the generator rotating shaft 25 to rotate synchronously when the driving ring 29 rotates, for power generation, while rotating, the disc-shaped clock spring 34 is retracted, and in the subsequent reset, the driving ring 29 is driven to rotate in the opposite direction by the rotating torque of the disc-shaped clock spring 34, so that the first pull rope 14 is overlapped and wound on the driving ring 29 again, when the water surface inside the riverbed reaches the warning line and needs to be discharged, the water flow will impact on the vortex blades 26 when flowing through the water outlet 3, driving the vortex blades 26 to rotate, the rotating direction is consistent with the direction of the driving ring 29 driven by the disc-shaped clock spring 34 during reset, so that the generator rotating shaft 25 can be driven to rotate for power generation when discharging the water flow, and mechanical interference will not be caused.

[0045] For example, in an embodiment, the application also provides a protection method for a channel maintenance engineering bank slope revetment, applied to a protection device for a channel maintenance engineering bank slope revetment as described above, comprising the following steps:

[0046] Step S1: The device senses the water waves caused by the passing ships through the floating plate 5, and drives the floating plate 5 to slide up and down through the ups and downs of the waves, and cooperates with the disc-shaped clockwork 34 to pull the first pull rope 14 up and down, thereby driving the generator shaft 25 to rotate inside the generator housing 9 to generate electricity, and the subsequent opening of the cutting device will trigger the positioning device at the same time, at which time the water flow inside the riverbed can be discharged into the drainage channel 7 through the through hole 11, thereby achieving the purpose of drainage, and the power generation device will also be driven to work during drainage;

[0047] Step S2: When the cutting device works, the floating plate 5 moves upward to a certain position, which will drive the partition plate 10 to slide upward through the second pull rope 15, and when the partition plate 10 slides to the position where the drainage port 3 is opposite to the through hole 11, the water flow inside the riverbed can flow into the drainage channel 7 and be discharged;

[0048] Step S3: When the positioning device works, the partition plate 10 slides upward and contacts one end of the pressure rod 19 through the inclined surface on one side, which pushes the pressure rod 19 to one side, so that the other end of the pressure rod 19 presses the first pull rope 14 in the notch of the recessed block 16, thereby positioning the first pull rope 14;

[0049] Step S4: When the power generation device works, the up-and-down floating of the floating plate 5 will pull the first pull rope 14, and since the bottom of the first pull rope 14 is stacked and wound inside the outer ring groove 32 on the outer surface of the driving ring 29, the driving ring 29 will be driven to rotate, and since the spring tab 31 on the inner ring groove 33 on the inner side of the driving ring 29 is in close contact with the ratchet teeth 30, the driving ring 29 and the generator shaft 25 are mutually clamped under the limitation of the ratchet teeth 30, so that the driving ring 29 will drive the generator shaft 25 to rotate synchronously when the driving ring 29 rotates, thereby generating electricity.

[0050] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some of the technical features, as long as they are within the spirit and principles of the application. Any modification, equivalent replacement, improvement, etc. made within the scope of the application shall be included in the protection scope of the application.

Claims

1. A protective device for bank slope protection in waterway maintenance engineering, characterized in that, The utility model relates to a concrete retaining wall (1), the concrete retaining wall (1) is trapezoidal, and both sides are inclined, one side of the concrete retaining wall (1) is provided with back slope soil (2), the inside of concrete retaining wall (1) is close to the bottom edge and is provided with drainage channel (7), one side of drainage channel (7) is provided with adjusting groove (13), one side of concrete retaining wall (1) is provided with drainage outlet (3) that penetrates to the inside of adjusting groove (13), The inside of drainage outlet (3) is provided with power generation device, the inside of adjusting groove (13) is provided with intercepting device, the inside of concrete retaining wall (1) is provided with positioning device, the top of one side of concrete retaining wall (1) is provided with two side openings (4) of drainage outlet (3), the bottom between two side openings (4) is provided with through opening (8), the bottom of two drainage outlets (3) is all communicated with each other, the inside of through opening (8) is slidably provided with U-shaped carriage (6), the both ends of U-shaped carriage (6) correspond to extend to the inside of side opening (4), the both ends of U-shaped carriage (6) are fixed with floating plate (5), one side of floating plate (5) extends to the other side of concrete retaining wall (1) horizontally, the bottom of through opening (8) and the top of adjusting groove (13) are communicated with each other, the intercepting device includes partition plate (10), the partition plate (10) is slidably and sealingly connected between the inner wall of adjusting groove (13), one side of partition plate (10) is provided with through hole (11) that penetrates to the other side, the through hole (11) is opposite to drainage outlet (3), the top of partition plate (10) is provided with second pull rope (15), one end of second pull rope (15) is connected in the bottom of U-shaped carriage (6), the top of partition plate (10) is inclined near one side edge, the bottom of adjusting groove (13) is provided with cylindrical groove (21), the inner wall between cylindrical groove (21) is slidably provided with round plate (24), the bottom of round plate (24) is fixed with pull spring (23), the bottom of pull spring (23) is fixed in the inside bottom surface of cylindrical groove (21), the top of round plate (24) is fixed with pull rod (22), the top of pull rod (22) is slidably penetrated to the inside of adjusting groove (13) and is installed in the bottom of partition plate (10), The positioning device includes a pressing rod (19), the inside of the concrete retaining wall (1) is provided with a reciprocating cavity (17), the pressing rod (19) is arranged in the reciprocating cavity (17), the inside of the concrete retaining wall (1) is provided with a pulling flow channel (12), one end of the pulling flow channel (12) penetrates into the adjusting groove (13), one end of the pressing rod (19) slides and penetrates into the pulling flow channel (12), the other end of the pressing rod (19) slides and penetrates into the adjusting groove (13), and is opposite to the inclined surface of one side of the partition plate (10), the outer surface of the pressing rod (19) is fixedly provided with a sliding ring (20), the sliding ring (20) is slidably arranged between the inner walls of the reciprocating cavity (17), one side of the sliding ring (20) is fixedly provided with a reciprocating spring (18), one end of the reciprocating spring (18) is fixed on the inner wall of the reciprocating cavity (17), and one side of the inner wall of the pulling flow channel (12) is fixedly provided with a concave pad (16); the concave surface of the concave pad (16) is opposite to one end of the pressing rod (19); The power generation device includes a generator housing (9) and a generator rotating shaft (25), the generator rotating shaft (25) is rotatably connected in the inside of the generator housing (9), and one end of the generator rotating shaft (25) slides and penetrates into the outside of the generator housing (9), the generator housing (9) is located in the inside of the drain port (3), and the outer surface of the generator housing (9) is fixedly provided with a plurality of supporting rods (27) at equal intervals in the circumferential direction, one end of each of the plurality of supporting rods (27) is fixedly arranged on the inner wall of the drain port (3), the outer surface of the generator rotating shaft (25) is fixedly provided with a plurality of vortex blades (26) at equal intervals in the circumferential direction, and each of the plurality of vortex blades (26) is located outside the generator housing (9), the outer surface of the generator rotating shaft (25) is provided with an annular groove (28), the annular groove (28) is slidably sleeved with a driving ring (29), the outer surface of the driving ring (29) is provided with an outer ring groove (32), the driving ring (29) is located in the inside of the generator housing (9), the inside of the pulling flow channel (12) is provided with a first lifting rope (14), the top of the first lifting rope (14) is connected to the bottom of the U-shaped sliding bracket (6), the bottom end of the first lifting rope (14) slides and penetrates into the inside of the generator housing (9), and is stacked and wound on the inner bottom surface of the outer ring groove (32), the inner wall of the driving ring (29) is provided with an inner ring groove (33), the inner bottom surface of the annular groove (28) is fixedly provided with a plurality of ratchet teeth (30) at equal intervals in the circumferential direction, the inner wall of the inner ring groove (33) is provided with a plurality of spring tabs (31) at equal intervals in the circumferential direction, each of the plurality of spring tabs (31) is inclined, and is slidably attached to one side of the plurality of ratchet teeth (30), one side of the outer surface of the driving ring (29) is provided with a circular groove (35), the one side inner wall of the circular groove (35) is fixedly provided with a disc-shaped clock spring (34), and one end of the disc-shaped clock spring (34) is fixed on the one side inner wall of the annular groove (28).

2. A method of protecting a bank revetment for a waterway maintenance work, which is applied to the bank revetment protection device according to any one of claims 1, characterized by The method comprises the following steps: Step S1: the device through the floating plate (5) induction to and from the ship caused by the water waves, through the ups and downs of the waves driven floating plate (5) up and down sliding, with disc-shaped spring (34) to make the first pull rope (14) up and down pull, so as to drive the generator rotor (25) in the generator housing (9) inside rotation power generation, and subsequent will cut off device open will trigger positioning device at the same time, the river bed inside water flow can through the through hole (11) into the drainage channel (7), in order to achieve the purpose of drainage, when drainage will also drive the power generation device work; Step S2: when the cutting device works, the floating plate (5) to the upper movement to a certain position, will be through the second pull rope (15) driven by the partition plate (10) up and down sliding, when the partition plate (10) sliding to the drainage port (3) and through the mouth (11) opposite, located in the river bed inside water flow can flow into the drainage channel (7) discharge; Step S3: when the positioning device works, when the partition plate (10) up and down sliding will through one side of the inclined surface and the pressure bar (19) one end contact, the pressure bar (19) to one side, so that the other end of the pressure bar (19) will be the first pull rope (14) pressure in the recess of the recess block (16), so as to position the first pull rope (14); Step S4: when the power generation device works, the floating plate (5) up and down floating will pull the first pull rope (14), because the first pull rope (14) bottom overlap winding in the outer ring groove (32) of the drive ring (29) outer surface, so will drive the drive ring (29) rotation, and because the drive ring (29) inside the inner ring groove (33) on the spring tab (31) and ratchet (30) mutual adhesion, under the limit of the ratchet (30) will drive ring (29) and generator rotor (25) mutual card, so when the drive ring (29) rotation will drive the generator rotor (25) synchronous rotation, for power generation.

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