Height-adjustable flood bank for water conservancy project

Abstract

The invention belongs to the technical field of water conservancy flood control, and particularly relates to a height-adjustable water conservancy project flood control bank which comprises a flood control bank body. A partition plate is arranged between every two adjacent groups of flood bank mechanisms, each group of flood bank mechanism comprises a sliding groove formed in the upper end of the flood bank body, a baffle is connected into the sliding groove in a sealed and sliding mode, and a water flow channel corresponding to the baffle in position is formed in the side wall of the lower portion of the flood bank body; and the multiple sets of intelligent flood drainage mechanisms are arranged in the multiple water flow channels correspondingly, and each intelligent flood drainage mechanism comprises a fixed sleeve fixedly connected to the interior of the corresponding water flow channel. By arranging the intelligent flood drainage mechanism, when the flood level rises, the hindering effect of the flow guide plate on water flow is reduced, when the flood level drops, the hindering effect of the flow guide plate on the water flow is enhanced, the flood drainage efficiency can be automatically adjusted according to the height of the water level, and the flood drainage efficiency is always within a proper range.

Description

Technical Field

[0001] The present invention belongs to the technical field of water conservancy flood control, and particularly relates to a flood control dike for water conservancy projects with adjustable height. Background Technique

[0002] A flood control dike is a water conservancy facility used to prevent floods from overflowing. It is usually built in rivers, lakes, coasts or other areas vulnerable to floods. Its main purpose is to prevent floods from damaging the surrounding land, cities or other infrastructure by blocking or guiding the water flow. During flood control, due to the uncertainty of the size and frequency of floods, the flood control dike needs to have a high degree of adjustment function to facilitate adjusting the height according to the predicted flood flow and water level changes, so as to maximize the flood control effect and cope with floods of different scales.

[0003] Existing flood control dikes, such as a flood control device with adjustable height disclosed in Chinese Patent Publication No. CN222294834U, can automatically adjust the height of the flood control dike when the flood water level changes. However, during the use of the above flood control dike, the following technical problems still exist: It is impossible to automatically adjust the flood discharge efficiency according to the water level height of the flood. When the flood water level rises, if the flood discharge efficiency is insufficient, the flood will stay in the dike, which easily leads to the risk of flood overflow or rupture of the flood control dike. When the flood water level drops, if the flood discharge efficiency is too high, the internal water pressure of the flood control dike will decrease, and the water level in the flood control dike cannot be maintained within a suitable range, resulting in unstable structure of the flood control dike and even settlement or cracks; When the flood rises too fast, it is easy to cause the flood control dike to burst due to rapid water accumulation. When the flood water level is too high, it will exceed the designed height of the flood control dike, causing the flood to overflow from the top of the flood control dike, which will not only erode the dike structure, but also may cause waterlogging in the area outside the flood control dike, and may even trigger large-scale flood disasters in severe cases. Existing flood control dikes cannot monitor the rising speed and height of the flood water level, resulting in great potential hazards during the use of the flood control dike. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technique, and provide a flood control dike for water conservancy projects with adjustable height that can automatically adjust the flood discharge efficiency according to the water level height, keep the flood discharge efficiency always within a suitable range, and maintain the water level in the flood control dike within a suitable range.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A flood control dike for water conservancy projects with adjustable height, comprising: The flood control dike body; There are multiple flood control dike mechanisms, and partitions are provided between adjacent two groups of flood control dike mechanisms. Each flood control dike mechanism includes a chute opened at the upper end of the flood control dike body. A baffle is hermetically and slidably connected in the chute, and a water flow channel corresponding to the position of the baffle is opened on the lower side wall of the flood control dike body. There are multiple intelligent flood drainage mechanisms, which are respectively arranged in multiple water flow channels. The intelligent flood drainage mechanism includes a fixed sleeve fixedly connected inside the water flow channel. A magnetostrictive element is hermetically arranged on the inner wall of the fixed sleeve, and the magnetostrictive element extends outside the fixed sleeve. Two fixed rods are fixedly connected to the inner wall of the water flow channel. The two fixed rods are symmetrically distributed on both sides of the magnetostrictive element. A swing rod is rotatably sleeved in the middle position of each fixed rod. A return spring is arranged between the swing rod and the fixed sleeve. Two arc-shaped blocks are fixedly connected to the inner wall of the water flow channel. Two flow guiding plates are arranged between the two arc-shaped blocks. The two swing rods are respectively fixedly connected to the two flow guiding plates. A guiding groove is opened on the magnetostrictive element, and the two swing rods both extend into the guiding groove. A control component is also arranged in the water flow channel.

[0006] Preferably, the length of the swing rod on the side close to the flow guiding plate is less than the length on the side far from the flow guiding plate.

[0007] Preferably, the thicknesses of the two swing rods are different. A dislocation groove is opened on the thicker swing rod, and the thinner swing rod extends into the dislocation groove.

[0008] Preferably, the control component includes a control groove opened on the upper wall of the water flow channel. A piston plate is hermetically and slidably connected in the control groove. A first spring is arranged between the piston plate and the inner top wall of the control groove. A pressure sensor is fixedly connected to the inner top wall of the control groove. The first spring is fixedly connected to the pressure sensor. The magnetostrictive element is electrically connected to an external power supply through the pressure sensor.

[0009] Preferably, multiple groups of intelligent water diversion mechanisms are further arranged on the flood control dike body for automatically guiding flood water to a safe position when the flood water level rises too fast or is too high. The intelligent water diversion mechanism includes two first guide rails fixedly connected to the flood control dike body. A first slider is slidably connected between the two first guide rails. A connecting rod is fixedly connected between the first slider and the baffle. A first floating plate is fixedly connected to the first slider. A second guide rail is fixedly connected to the lower end of the first slider. A second slider is fixedly connected to the second guide rail. A second floating plate is fixedly connected to the second slider. A buffer cavity is opened inside the second slider. A counterweight block is hermetically and slidably connected inside the buffer cavity. A second spring is arranged between the counterweight block and the inner top wall of the buffer cavity. A distance sensor for monitoring the position of the first slider is arranged between the two first guide rails. A touch switch for monitoring the upward movement speed of the second slider is arranged on the inner bottom wall of the buffer cavity.

[0010] Preferably, the intelligent drainage mechanism further includes a three-way drainage channel opened inside the flood control dike body. One end of the three-way drainage channel is communicated with the flood control side of the flood control dike body, and the other two ends of the three-way drainage channel are communicated with the side of the flood control dike body opposite to the flood control side. Control opening and closing valves are arranged in both flow channels of the three-way drainage channel communicated with the side of the flood control dike body opposite to the flood control side, and the two control opening and closing valves are electrically connected to a distance sensor and a touch switch respectively.

[0011] Preferably, new energy power generation boxes are arranged on both sides of the flood control dike body, a hydraulic generator set is arranged in the water flow channel, and the new energy power generation boxes and the hydraulic generator set are used in cooperation.

[0012] Preferably, a reinforcement net is arranged at the lower end of the flood control dike body.

[0013] Compared with the existing technology, the advantages of the height-adjustable flood control dike for water conservancy projects are as follows: By arranging the flood control dike mechanism, during use, the flood control dike body can be divided into independent flood control areas by multiple partition plates, and at the same time, the height of each flood control area can be adjusted separately by multiple baffle plates, so that each flood control area can be adjusted individually according to the real-time water level change. This zonal control can ensure the uniform adjustment of the overall flood control dike and avoid excessive water level in local areas.

[0014] By arranging the intelligent flood discharge mechanism, during use, when the flood water level rises, the obstruction effect of the diversion plate on the water flow is reduced, so that the flood water can be discharged from the water flow channel at a relatively fast speed, improving the flood discharge efficiency. When the flood water level drops, the obstruction effect of the diversion plate on the water flow is enhanced, reducing the flood discharge efficiency. It can automatically adjust the flood discharge efficiency according to the water level height, keep the flood discharge efficiency within a suitable range all the time, maintain the water level in the flood control dike within a suitable range, and improve the stability of the flood control dike body.

[0015] By arranging the intelligent drainage mechanism, when the flood water level is too high and about to exceed the maximum flood control height of the flood control dike, and when the rising speed of the flood water level is too fast, the flood water can be guided to a safe position, restricting the rising height of the water level, avoiding the dike collapse caused by excessive water accumulation too quickly, helping the flood control system to better cope with the pressure change, reducing the flood discharge pressure, and effectively reducing the danger of the flood control dike during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional structural schematic diagram of the present invention; Figure 3 is a partial structural schematic diagram of the intelligent flood discharge mechanism in the present invention; Figure 4 It is a partial structural schematic diagram of the intelligent drainage mechanism in the present invention; Figure 5 It is a cross-sectional structural schematic diagram of the second slider in the present invention; Figure 6 It is a cross-sectional structural schematic diagram at the three-way drainage channel in the present invention.

[0017] In the figure: Flood control dike body; Flood control dike mechanism; 21, chute; 22, baffle; 23, water flow channel; Partition board; Intelligent flood drainage mechanism; 41, fixed sleeve; 42, magnetostrictive element; 43, fixed rod; 44, swing rod; 45, arc-shaped block; 46, diversion plate; 47, guide groove; 48, control component; 481; control groove; 482, piston plate; 483, first spring; 484, pressure sensor; 49, dislocation groove; Intelligent drainage mechanism; 51, first guide rail; 52, first slider; 53, connecting rod; 54, first floating plate; 55, second guide rail; 56, second slider; 57, second floating plate; 58, buffer cavity; 59, counterweight; 510, second spring; 511, distance sensor; 512, touch switch; 513, three-way drainage channel; New energy power generation box. Specific implementation manners

[0018] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0019] Embodiment: Refer to Figures 1 to 6 , a flood control dike for water conservancy projects with adjustable height, comprising: Flood control dike body 1; Specifically, new energy power generation boxes 6 are provided on both sides of the flood control dike body 1, a hydraulic generator set is provided in the water flow channel 23, and the new energy power generation box 6 and the hydraulic generator set are used in cooperation. During periods of small or insufficient water flow, the new energy power generation box 6 can provide stable power through biomass power generation to ensure that the energy supply will not be interrupted. When the water flow is strong, the hydraulic generator set can be used as the main energy source to reduce the dependence on biomass and save the use of biomass.

[0020] Specifically, the biomass power generation part in the new energy power generation box 6 mainly consists of a biomass gasifier, a gas engine, and a generator. Biomass raw materials (such as straw, wood chips, etc.) are converted into combustible gas through processes such as pyrolysis and gasification in the gasifier. The combustible gas enters the gas engine, driving the engine to operate, and then driving the generator to generate electricity. When the water flow is small, the power generation of the hydroelectric generating set in the water flow channel 23 is insufficient. At this time, the water flow velocity and power generation are monitored by sensors. When the water flow velocity is lower than the set threshold and the power generation cannot meet the demand, the biomass power generation system is automatically started. The specific switching control logic is as follows: The control system monitors the output power and water flow velocity of the hydroelectric generating set in real time. When the water flow velocity is lower than the set value (such as 1 m / s) and the output power of the hydroelectric generating set is lower than the minimum power demand set by the system (such as 50 kW), a switching signal is issued. First, the inlet valve of the hydroelectric generating set is gradually closed, and at the same time, the biomass gasifier and the gas engine are started. After the biomass power generation system operates stably, the power output is connected to the power grid to achieve a smooth switch of energy supply. When the water flow increases, when the water flow velocity is higher than the set threshold (such as 2 m / s) and the power generation of the hydroelectric generating set can meet the demand, the biomass power generation system is gradually shut down, and the hydroelectric generating set is restarted to generate electricity to ensure the high efficiency and stability of energy utilization.

[0021] Specifically, a reinforcement net is provided at the lower end of the flood control dike body 1. During use, the reinforcement net can be buried deep underground, thereby improving the stability of the flood control dike body 1.

[0022] There are multiple groups of flood control dike mechanisms 2, and partitions 3 are provided between adjacent two groups of flood control dike mechanisms 2. Each group of flood control dike mechanisms 2 includes a chute 21 opened at the upper end of the flood control dike body 1. A baffle 22 is hermetically and slidably connected in the chute 21. A water flow channel 23 corresponding to the position of the baffle 22 is opened on the lower side wall of the flood control dike body 1; By setting the flood control dike mechanism 2, during use, the flood control dike body 1 can be divided into independent flood control areas by multiple partitions 3. At the same time, the height of each flood control area can be adjusted separately by multiple baffles 22, so that each flood control area can be adjusted individually according to the real-time water level change. This zonal control can ensure the uniform adjustment of the entire flood control dike and avoid excessive water levels in local areas.

[0023] There are multiple sets of intelligent flood drainage mechanisms 4, which are respectively arranged in multiple water flow channels 23. The intelligent flood drainage mechanism 4 includes a fixed sleeve 41 fixedly connected to the inside of the water flow channel 23. A magnetostrictive element 42 is hermetically arranged on the inner wall of the fixed sleeve 41, and the magnetostrictive element 42 extends outside the fixed sleeve 41. Two fixed rods 43 are fixedly connected to the inner wall of the water flow channel 23. The two fixed rods 43 are symmetrically distributed on both sides of the magnetostrictive element 42. A swing rod 44 is rotatably sleeved in the middle position of each group of fixed rods 43. A return spring is arranged between the swing rod 44 and the fixed sleeve 41. Two arc-shaped blocks 45 are fixedly connected to the inner wall of the water flow channel 23. Two flow guiding plates 46 are arranged between the two arc-shaped blocks 45. The two swing rods 44 are respectively fixedly connected to the two flow guiding plates 46. A sliding guiding groove 47 is formed on the magnetostrictive element 42. The two swing rods 44 both extend into the guiding groove 47. A control component 48 is also arranged in the water flow channel 23.

[0024] Specifically, the magnetostrictive element 42 is made of an alloy material with high corrosion resistance, such as a special alloy containing nickel and chromium. This type of alloy can effectively resist corrosion in a humid water flow environment containing sediment, ensuring the stable expansion and contraction performance of the element. The swing rod 44 and the flow guiding plate 46 are made of high-strength and erosion-resistant engineering plastics or metal materials with special surface treatment, such as stainless steel with chromium plating treatment on the surface, to enhance their surface hardness and anti-wear ability and extend their service life.

[0025] Specifically, in the water flow channel 23, a filter structure is arranged on the upstream side of the intelligent flood drainage mechanism 4 to intercept larger particles of sediment in the water flow and reduce the direct erosion of the mechanism components.

[0026] Specifically, the length of the swing rod 44 on the side close to the flow guiding plate 46 is less than the length on the side far from the flow guiding plate 46. When the magnetostrictive element 42 expands and contracts, it can drive the side of the swing rod 44 far from the flow guiding plate 46 to rotate. Under the action of the lever principle, the force required for the longer side of the swing rod 44 to rotate is much less than the force required for the shorter side to rotate. Therefore, it is ensured that the swing rod 44 can overcome the pressure during the water flow and drive the flow guiding plate 46 to rotate to adjust the tilt angle.

[0027] Specifically, the thicknesses of the two swing rods 44 are different. A dislocation groove 49 is formed on the thicker swing rod 44, and the thinner swing rod 44 extends into the dislocation groove 49, so that when the magnetostrictive element 42 expands and contracts, the rotations of the two swing rods 44 will not interfere with each other.

[0028] The control component 48 includes a control groove 481 formed in the upper wall of the water flow channel 23. A piston plate 482 is hermetically and slidably connected in the control groove 481. A first spring 483 is provided between the piston plate 482 and the inner top wall of the control groove 481. A pressure sensor 484 is fixedly connected to the inner top wall of the control groove 481. The first spring 483 is fixedly connected to the pressure sensor 484. The magnetostrictive element 42 is electrically connected to an external power supply through the pressure sensor 484.

[0029] In view of the problem in the prior art that the flood discharge efficiency cannot be automatically adjusted according to the water level height of the flood, in the present invention, by providing the intelligent flood discharge mechanism 4, during use, when the flood water level rises, the water pressure of the flood entering the water flow channel 23 increases, thereby pushing the piston plate 482 to displace upward in the control groove 481 by an increased distance, so that the degree of compression of the first spring 483 increases, and thus the force exerted by the first spring 483 on the pressure sensor 484 increases. The current of the circuit where the magnetostrictive element 42 is located is controlled by the pressure sensor 484 to decrease, and further the length of the magnetostrictive element 42 shortens, so that the magnetostrictive element 42 can push the two swing rods 44 away from the ends of the guide plate 46 to rotate around the fixed rod 43. Thus, the ends of the two swing rods 44 close to the guide plate 46 drive the guide plate 46 to tilt, reducing the obstruction of the guide plate 46 to the water flow, so that the flood is discharged from the water flow channel at a relatively fast speed, improving the flood discharge efficiency. When the flood water level drops, the water pressure of the flood entering the water flow channel 23 decreases, and the force exerted by the first spring 483 on the pressure sensor 484 decreases, causing the length of the magnetostrictive element 42 to elongate. Thus, the swing rods 44 are reset under the elastic force of the return spring, and the guide plate 46 changes from the tilted state to horizontally fit with the arc-shaped block 45, increasing the obstruction of the guide plate 46 to the water flow, so that the flood is discharged from the water flow channel 23 at a relatively slow speed, reducing the flood discharge efficiency. It can automatically adjust the flood discharge efficiency according to the water level height, keep the flood discharge efficiency within a suitable range all the time, maintain the water level in the flood control embankment within a suitable range, and improve the stability of the flood control embankment body.

[0030] On the flood control dike body 1, there are also multiple groups of intelligent drainage mechanisms 5, which are used to automatically guide the flood to a safe location when the flood water level rises too fast or is too high. The intelligent drainage mechanism 5 includes two first guide rails 51 fixedly connected to the flood control dike body 1. A first slider 52 is slidably connected between the two first guide rails 51. A connecting rod 53 is fixedly connected between the first slider 52 and the baffle 22. A first floating plate 54 is fixedly connected to the first slider 52. A second guide rail 55 is fixedly connected to the lower end of the first slider 52. A second slider 56 is fixedly connected to the second guide rail 55. A second floating plate 57 is fixedly connected to the second slider 56. A buffer cavity 58 is opened inside the second slider 56. A counterweight block 59 is hermetically slidably connected inside the buffer cavity 58. A second spring 510 is provided between the counterweight block 59 and the inner top wall of the buffer cavity 58. A distance sensor 511 for monitoring the position of the first slider 52 is provided between the two first guide rails 51. A touch switch 512 for monitoring the upward movement speed of the second slider 56 is provided on the inner bottom wall of the buffer cavity 58.

[0031] Specifically, the safe location here refers to the area on the backwater side of the flood control dike with a relatively low terrain and far from residential areas and important infrastructure, such as a specially set flood storage area or drainage channel. These areas have sufficient accommodation space to receive the diverted flood when the flood water level is too high or the rise rate is too fast, avoiding harm to the surrounding areas caused by the flood.

[0032] The intelligent drainage mechanism 5 further includes a three-way drainage channel 513 opened inside the flood control dike body 1. One end of the three-way drainage channel 513 is communicated with the flood control side of the flood control dike body 1, and the other two ends of the three-way drainage channel 513 are communicated with the side opposite to the flood control side of the flood control dike body 1. Control opening and closing valves are provided in both flow channels of the three-way drainage channel 513 communicated with the side opposite to the flood control side of the flood control dike body 1. The two control opening and closing valves are electrically connected to the distance sensor 511 and the touch switch 512 respectively.

[0033] In view of the problems in the prior art that when the flood rises too fast, it is easy to cause the flood control dike to burst due to excessive water accumulation too quickly, and when the flood water level is too high, it will exceed the designed height of the flood control dike, resulting in the flood overflowing from the top of the flood control dike. The present invention sets up an intelligent drainage mechanism 5. When the water level in the flood control dike body 1 rises, it first drives the second floating plate 57 to move upward. Through the buoyancy effect, it drives the second slider 56 to move on the second guide rail 55. When the second floating plate 57 and the second slider 56 move up to the top of the second guide rail 55, the continuous rise of the water level can drive the second floating plate 57, the second slider 56, and the second guide rail 55 to rise as a whole with the first slider 52 and the first floating plate 54. During this process, the height of the water level and the rising speed of the water level can be monitored respectively through the distance sensor 511 and the touch switch 512. When the water level is too high, the distance sensor 511 opens one of the control opening and closing valves in the three-way drainage channel 513, so that the flood control side of the flood control dike body 1 is connected to the side opposite to the flood control. When the rising speed of the water level is too fast, the rapid movement of the second slider 56 will cause the counterweight 59 to overcome the elastic force of the second spring 510 under the action of inertia and displace downward relative to the buffer cavity 58 to press the touch switch 512, opening the other control opening and closing valve in the three-way drainage channel 513. It can guide the flood to a safe position when the flood water level is too high and is about to exceed the maximum flood control height of the flood control dike, and when the rising speed of the flood water level is too fast, limit the rising height of the water level, avoid bursting caused by excessive water accumulation too quickly, help the flood control system better cope with pressure changes, reduce the flood discharge pressure, and effectively reduce the danger of the flood control dike during use.

[0034] The functional principle of the present invention can be elaborated through the following operation modes: During use, the flood control dike body 1 can be divided into independent flood control areas by multiple partitions 3, and at the same time, the height of each flood control area can be adjusted respectively by multiple baffles 22; When the flood water level rises, the water pressure of the flood entering the water flow channel 23 increases, thereby pushing the piston plate 482 to displace upward in the control groove 481 by a greater distance, increasing the degree of compression of the first spring 483. The current of the circuit where the magnetostrictive element 42 is located is controlled by the pressure sensor 484 to decrease, and then the length of the magnetostrictive element 42 is shortened, causing one end of the two swing rods 44 close to the guide vane 46 to drive the guide vane 46 to tilt, reducing the blocking effect of the guide vane 46 on the water flow, so that the flood is discharged from the water flow channel at a relatively fast speed, improving the flood discharge efficiency. When the flood water level drops, the water pressure of the flood entering the water flow channel 23 decreases, and the swing rod 44 resets under the elastic force of the return spring, causing the guide vane 46 to change from the tilted state to horizontally fit with the arc-shaped block 45, increasing the blocking effect of the guide vane 46 on the water flow, so that the flood is discharged from the water flow channel 23 at a relatively slow speed, reducing the flood discharge efficiency; When the water level inside the flood control embankment body 1 rises, it first drives the second floating plate 57 to move upward. Through the buoyancy effect, it drives the second slider 56 to move on the second guide rail 55. When the second floating plate 57 and the second slider 56 move upward to the top of the second guide rail 55, the continuous rise of the water level can drive the second floating plate 57, the second slider 56, and the second guide rail 55 to rise integrally with the first slider 52 and the first floating plate 54. During this process, the height of the water level and the rising speed of the water level can be monitored through the distance sensor 511 and the touch switch 512 respectively. When the water level is too high, the distance sensor 511 opens one of the control opening and closing valves in the three-way drainage channel 513, so that the flood control side of the flood control embankment body 1 is communicated with the side opposite to the flood control. When the flood water level is too high and is about to exceed the maximum flood control height of the flood control embankment, and when the rising speed of the flood water level is too fast, the flood water is guided to a safe position.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A height-adjustable flood embankment for a hydraulic engineering project, characterized in that: include: Flood embankment body (1); The flood levee mechanism (2) is provided in multiple groups, and a partition plate (3) is provided between two adjacent groups of the flood levee mechanism (2), each group of the flood levee mechanism (2) comprises a slide groove (21) opened at the upper end of the flood levee body (1), a baffle plate (22) is sealed and slidably connected in the slide groove (21), and a water flow channel (23) corresponding to the position of the baffle plate (22) is opened on the lower side wall of the flood levee body (1); The intelligent flood discharge mechanism (4) is provided with a plurality of groups, which are respectively arranged in a plurality of water flow channels (23). The intelligent flood discharge mechanism (4) comprises a fixed sleeve (41) fixedly connected to the inside of the water flow channel (23), the inner wall of the fixed sleeve (41) is sealed with a magnetostrictive element (42), and the magnetostrictive element (42) extends outside the fixed sleeve (41), and the inner wall of the water flow channel (23) is fixedly connected with two groups of fixed rods (43), the two groups of fixed rods (43) are symmetrically distributed on both sides of the magnetostrictive element (42), and each group of fixed rods (43) ) is rotatably sleeved at the middle position of the magnetostrictive element (42), a return spring is provided between the swing rod (44) and the fixed sleeve (41), two arc blocks (45) are fixedly connected to the inner wall of the water flow channel (23), two guide plates (46) are provided between the two arc blocks (45), the two swing rods (44) are respectively fixedly connected to the two guide plates (46), a guide groove (47) is provided on the magnetostrictive element (42), the two swing rods (44) both extend into the guide groove (47), and a control component (48) is also provided in the water flow channel (23).

2. The height-adjustable flood embankment for water conservancy projects according to claim 1 is characterized in that: The length of the swing rod (44) on the side close to the guide plate (46) is smaller than the length of the side away from the guide plate (46).

3. The height-adjustable flood embankment for water conservancy projects according to claim 1 is characterized in that: The two swing rods (44) have different thicknesses; the thicker swing rod (44) is provided with a dislocation groove (49), and the thinner swing rod (44) extends into the dislocation groove (49).

4. The height-adjustable flood embankment for water conservancy projects according to claim 1 is characterized in that: The control assembly (48) comprises a control groove (481) formed on an upper wall of a water flow channel (23); a piston plate (482) is sealingly and slidably connected in the control groove (481); a first spring (483) is provided between the piston plate (482) and the inner top wall of the control groove (481); a pressure sensor (484) is fixedly connected to the inner top wall of the control groove (481); the first spring (483) is fixedly connected to the pressure sensor (484); and the magnetostrictive element (42) is electrically connected to an external power supply via the pressure sensor (484).

5. The height-adjustable flood embankment for water conservancy projects according to claim 4 is characterized in that: The flood embankment body (1) is also provided with a plurality of groups of intelligent drainage mechanisms (5) for automatically guiding flood water to a safe location when the flood water level rises too fast or is too high. The intelligent drainage mechanisms (5) include two first guide rails (51) fixedly connected to the flood embankment body (1), a first slider (52) being slidably connected between the two first guide rails (51), a connecting rod (53) being fixedly connected between the first slider (52) and the baffle (22), a first floating plate (54) being fixedly connected to the first slider (52), a second guide rail (55) being fixedly connected to the lower end of the first slider (52), and the second guide rail (55) being fixedly connected to the lower end of the first slider (52). A second slider (56) is fixedly connected to the guide rail (55), a second floating plate (57) is fixedly connected to the second slider (56), a buffer chamber (58) is provided inside the second slider (56), a counterweight block (59) is sealingly and slidably connected inside the buffer chamber (58), a second spring (510) is provided between the counterweight block (59) and the top wall of the buffer chamber (58), a distance sensor (511) for monitoring the position of the first slider (52) is provided between the two first guide rails (51), and a touch pressure switch (512) for monitoring the upward movement speed of the second slider (56) is provided on the bottom wall of the buffer chamber (58).

6. The height-adjustable flood embankment for water conservancy projects according to claim 5, characterized in that: The intelligent drainage mechanism (5) also includes a three-way drainage channel (513) opened inside the flood control dike body (1), one end of the three-way drainage channel (513) is connected to the flood control side of the flood control dike body (1), and the other two ends of the three-way drainage channel (513) are connected to the flood control side of the flood control dike body (1) opposite to the flood control side. The two flow channels connected to the three-way drainage channel (513) and the flood control side of the flood control dike body (1) opposite to the flood control side are both provided with control opening and closing valves, and the two control opening and closing valves are respectively electrically connected to the distance sensor (511) and the touch pressure switch (512).

7. The height-adjustable flood embankment for water conservancy projects according to claim 1, characterized in that: New energy power generation boxes (6) are provided on both sides of the flood embankment body (1), a hydroelectric generator set is provided in the water flow channel (23), and the new energy power generation box (6) is used in conjunction with the hydroelectric generator set.

8. The height-adjustable flood embankment for water conservancy projects according to claim 1, characterized in that: A reinforcement net is provided at the lower end of the flood embankment body (1).

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