Flood prevention and seepage cutting wall for intelligent water conservancy and use method thereof

Abstract

The application relates to the technical field of hydraulic engineering, and discloses a flood control seepage intercepting wall for intelligent water conservancy, which comprises a seepage intercepting wall body, the seepage intercepting wall body is a vertical seepage intercepting wall body structure, a partition plate is fixedly arranged in the seepage intercepting wall body, the partition plate divides the inner cavity of the seepage intercepting wall body into multiple sealed sealing installation cavities, a sealing piston is sealingly and slidably connected in the sealing installation cavities, a lifting top rod is fixedly connected to the upper end of the sealing piston, a secondary seepage intercepting plate is fixedly connected to the upper end of the lifting top rod, and a cover plate is fixedly arranged on the top of the secondary seepage intercepting plate; a plurality of water inlet overflow holes are formed in the outer wall of the water-facing surface of the seepage intercepting wall body. The water pressure driving structure composed of the sealing installation cavities, the sealing piston, the water inlet overflow holes and a one-way valve arranged in the seepage intercepting wall body can automatically push the sealing piston, the lifting top rod and the secondary seepage intercepting plate to stretch out upwards by using the water flow pressure when the flood level rises, and then the water retaining height and the seepage prevention range of the wall body can be expanded in real time.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a flood control and seepage interception wall for smart water conservancy and its application method. Background Technology

[0002] Water conservancy projects are crucial infrastructure for ensuring people's livelihoods, agricultural production, and ecological stability. Among them, flood control and seepage interception walls, as core seepage-proof and water-retaining components in dikes, river channels, reservoirs, and cofferdams, are mainly used to intercept seepage from the dike foundation, reduce seepage pressure, prevent piping and soil erosion, and resist lateral impacts from floods, ensuring the overall stability of the dike. With the continuous advancement of smart water conservancy projects, higher demands are being placed on the adaptive control capabilities of flood control and seepage interception walls at project sites.

[0003] Currently, the flood control and seepage interception walls widely used in water conservancy projects are mostly fixed reinforced concrete structures, steel sheet pile structures, or cement-soil mixing continuous wall structures. Their wall height, thickness, and seepage prevention range are all fixed values ​​preset during the construction phase, and cannot be automatically and dynamically adjusted according to the real-time water level of the river after installation. Under normal operating conditions with normal water levels and stable flow, these fixed seepage interception walls can meet the requirements for foundation seepage prevention and water retention. However, during the flood season, when water levels rise rapidly, or when encountering heavy rainfall or upstream flood discharge causing water levels to exceed standards, the fixed wall height, which cannot be automatically increased, easily leads to safety risks such as insufficient water retention height and flood overflow.

[0004] In the event of such a situation, traditional methods often rely on manual sandbag stacking, on-site temporary baffles, or the construction of flood control dikes for emergency reinforcement. These methods suffer from slow emergency response, high labor intensity, and high risks associated with working at heights near water. Furthermore, temporary reinforcement structures often lack overall integrity and stability, and under sustained high water levels and water flow impacts, they still face the possibility of failure and collapse, failing to fundamentally address the insufficient adaptability of fixed cutoff walls.

[0005] Therefore, a solution is proposed. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a flood control and seepage interception wall for smart water conservancy and its application method, thus solving the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a flood control and seepage interception wall for smart water conservancy, comprising a seepage interception wall body, wherein the seepage interception wall body is a vertical seepage interception wall structure, and a partition plate is fixedly installed inside it, wherein the partition plate divides the inner cavity of the seepage interception wall body into multiple closed sealing installation cavities. A sealing piston is slidably connected inside the sealed installation cavity. A lifting rod is fixedly connected to the upper end of the sealing piston. A secondary seepage intercepting plate is fixedly connected to the upper end of the lifting rod. A cover plate is fixedly installed on the top of the secondary seepage intercepting plate. The outer wall of the cutoff wall body has multiple water inlet overflow holes, and the inside of the cutoff wall body has inlet channels corresponding to the water inlet overflow holes. The water inlet overflow holes are connected to the lower cavity of the sealing installation cavity through the inlet channels. A one-way valve is installed in the inlet channel to allow water to enter the sealing installation cavity only. When the flood level rises to a set height, the water flows into the sealing installation cavity through the water inlet overflow holes and the inlet channels, pushing the sealing piston to move upward. Then, the lifting rod drives the auxiliary cutoff plate to rise synchronously, automatically increasing the overall water blocking height and seepage prevention range of the cutoff wall body.

[0008] Through the above technical solution, by cooperating with the sealed cavity inside the wall and the piston, the top rod and the secondary cutoff plate can be automatically pushed upward by the water pressure when the flood level rises, thereby dynamically improving the overall water-blocking height and seepage prevention range of the cutoff wall. No external power or manual operation is required, and it can adapt to changes in water level and achieve automatic adjustment.

[0009] Preferably, the secondary cutoff wall has at least two connecting grooves on each of its two transverse sidewalls. An elastic connector is fixedly installed inside one of the connecting grooves. A connecting plate is elastically connected to the end of the elastic connector. The upper and lower end faces of the connecting plate are both set as arc surfaces that facilitate sliding and locking. When multiple sections of the cutoff wall body are spliced ​​together in the transverse direction, as the secondary cutoff wall moves up and down, the connecting plate automatically locks into the connecting groove of the adjacent secondary cutoff wall under the elastic force of the elastic connector, so that a seamless sealing connection is formed between the adjacent secondary cutoff walls.

[0010] Through the above technical solution, the multi-segment spliced ​​cutoff wall can automatically complete the horizontal sealing connection during the lifting and lowering process, eliminate the splicing gaps between adjacent secondary cutoff panels, and improve the overall seepage prevention effect.

[0011] Preferably, the inner wall of the sealed mounting cavity is symmetrically provided with multiple mounting grooves, and a movable block is slidably connected inside the mounting groove. A reset elastic element is fixedly connected between the movable block and the inner wall of the mounting groove. The lower end face of the movable block is set as an arc surface to facilitate compression and sliding. When the sealing piston moves upward to the maximum limit height, the movable block automatically extends out of the mounting groove under the elastic force of the reset elastic element and abuts and supports the lower end face of the sealing piston, thereby locking the sealing piston.

[0012] With the above technical solution, the sealing piston can automatically lock when it reaches its maximum height, keeping the secondary seepage interceptor plate in a high position to prevent it from falling and sinking due to water pressure fluctuations.

[0013] Preferably, the inner sidewall of the cutoff wall body is provided with a transversely arranged connecting groove, which is interconnected with multiple installation grooves; a bidirectional screw is rotatably installed inside the cutoff wall body via a bearing, and two symmetrical drive rods are threadedly connected to the outer surface of the bidirectional screw. An installation shell matching the number of installation grooves is fixedly connected to the outer side of the drive rod, and a movable plate is slidably connected inside the installation shell. The end of the movable plate is fixedly connected to a movable block.

[0014] Through the above technical solution, multiple movable blocks can be linked and controlled by a bidirectional screw, ensuring that locking and unlocking actions are synchronized and consistent.

[0015] Preferably, one end of the bidirectional screw extends through to the outside of the cutoff wall body and is fixedly connected to a rotating handle. By rotating the rotating handle, the bidirectional screw can be driven to rotate, causing the two drive rods to move away from each other along the bidirectional screw. This, in turn, drives the movable block to retract into the mounting groove through the mounting shell and the movable plate, thereby releasing the lock on the sealing piston.

[0016] With the above technical solution, staff can manually unlock the device by turning the handle from the outside, which is simple and labor-saving.

[0017] Preferably, limit plates are fixedly installed on both the left and right sides of the interior of the cutoff wall body. The limit plates are used to limit the maximum rising height of the sealing piston. A vertically arranged drive rack is fixedly connected to one side of the top of the sealing piston. A connecting cavity is opened on both the left and right side walls of the interior of the cutoff wall body. A connecting shaft is rotatably installed inside the connecting cavity through a rotating shaft. A drive gear and a synchronous wheel are fixedly installed on the connecting shaft in sequence.

[0018] Through the above technical solution, the limiting plate can accurately limit the upward stroke of the sealing piston, avoiding structural damage caused by overtravel, while the drive rack can convert the lifting motion into rotational power.

[0019] Preferably, the drive rack and drive gear mesh with each other to form a transmission engagement, and the outside of the first synchronous pulley is connected to the second synchronous pulley via a synchronous belt. The end of the second synchronous pulley is fixedly connected to a drive screw, and a sealing plate is threaded onto the outer surface of the drive screw.

[0020] The above technical solution can synchronously transmit the lifting and lowering motion of the sealing piston to the sealing plate, thereby achieving automatic sealing and opening of the top gap.

[0021] Preferably, at least two drain valves are installed on the outer wall of the backwater side of the cutoff wall body. The inlet end of the drain valve is connected to the lower cavity of the sealing installation cavity, which is used to automatically discharge the accumulated water inside the sealing installation cavity when the flood recedes and the water level drops, so as to facilitate the reset of the sealing piston.

[0022] With the above technical solution, the water inside the sealing installation cavity can be quickly drained after the flood recedes, eliminating the influence of water pressure on the sealing piston, so that the sealing piston and the secondary seepage interceptor plate can be smoothly and automatically reset, avoiding water residue causing jamming or internal corrosion.

[0023] Preferably, each of the water inlet overflow holes has a detachable and sealed filter screen at its outer port, the filter screen being used to filter out silt and debris carried by floodwater.

[0024] Through the above technical solutions, the filter screen can effectively prevent debris such as mud, sand, branches, and weeds carried by floods from entering the internal cavity, avoiding pipe blockage or structural jamming, and ensuring long-term unobstructed water flow.

[0025] A method for using a flood control and seepage interception wall in smart water conservancy includes the following steps: S1: The multiple sections of the cutoff wall body are spliced ​​and installed sequentially along the transverse direction of the embankment foundation, so that each section of the secondary cutoff wall is at the same vertical height; S2. When a flood comes, the water level rises and the water flows through the inlet overflow hole, filter screen and inlet channel into the sealed installation cavity. The water pressure pushes the sealing piston, lifting rod and secondary seepage interceptor plate to rise automatically, increasing the water blocking and seepage prevention height. S3. During the upward movement of the secondary seepage interceptor plate, the connecting plate automatically engages with the connecting groove of the adjacent secondary seepage interceptor plate under the action of the elastic connector, thereby achieving a lateral seal. S4. After the sealing piston rises to its maximum height, the movable block automatically extends and locks the sealing piston, while driving the rack through the linkage mechanism to drive the sealing plate to seal the top gap. S5. After the flood recedes, open the drain valve to drain the water inside the sealed installation cavity, turn the handle to release the locking of the movable block, and the sealing piston, secondary seepage interceptor plate and sealing plate will automatically reset, completing one flood prevention and seepage prevention work cycle.

[0026] This invention provides a flood control and seepage interception wall for smart water conservancy and its application method. It has the following beneficial effects: 1. This invention utilizes a water pressure-driven structure consisting of a sealed installation cavity, a sealed piston, an inlet overflow hole, and a one-way valve within the cutoff wall body. When the flood level rises, the water pressure automatically pushes the sealed piston, the lifting rod, and the secondary cutoff plate upwards, thereby automatically expanding the wall's water-blocking height and seepage prevention range. This requires no electric drive or manual operation and can automatically increase the water-blocking height to adapt to different flood levels, significantly improving the flood control response speed and seepage prevention reliability of the cutoff wall.

[0027] 2. This invention, through the integrated cooperation of the secondary seepage intercepting plate's transverse sealing structure, the sealing piston locking structure, and the top sealing linkage structure, can achieve automatic lifting and raising of the wall while simultaneously sealing the gaps between adjacent secondary seepage intercepting plates and automatically sealing the gaps at the top of the wall. This effectively avoids phenomena such as leakage at the splicing joints and seepage damage, and significantly improves the safety of the smart water conservancy flood control and seepage interception system. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the cover plate structure of the present invention; Figure 3 This is a schematic diagram of the interior of the cutoff wall body of the present invention; Figure 4 This is a schematic diagram of the sealing piston structure of the present invention; Figure 5 This is a schematic diagram of the partition plate structure of the present invention; Figure 6 This is a schematic diagram of the mounting groove structure of the present invention; Figure 7 for Figure 5 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the bidirectional screw structure of the present invention; Figure 9 This is a schematic diagram of the drive screw structure of the present invention; Figure 10 This is a schematic diagram of the connecting plate structure of the present invention.

[0029] The components include: 1. the cutoff wall body; 2. the inlet overflow hole; and 3. the filter screen. 41. Secondary seepage interception plate; 42. Cover plate; 43. Sealing piston; 44. Mounting cavity; 45. Lifting rod; 51. Movable block; 52. Reset elastic element; 53. Mounting slot; 54. Movable plate; 55. Mounting shell; 56. Bidirectional screw; 57. Connecting slot; 58. Drive rod; 61. Drive screw; 62. Sealing plate; 71. Synchronous pulley one; 72. Drive rack; 73. Synchronous belt; 74. Synchronous pulley two; 75. Drive gear; 76. Connecting shaft; 8. Limiting plate; 9. Divider plate; 10. Drain valve; 11. Rotating handle; 12. Connecting cavity; 13. Connecting groove; 14. Elastic connector; 15. Connecting plate. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see the appendix Figure 1 - Appendix Figure 10 This invention provides a flood control and seepage interception wall for smart water conservancy. The flood control and seepage interception wall adopts a prefabricated structure with segmented prefabrication and on-site splicing. It can be spliced ​​and combined on-site according to the length of the dike and the width of the river channel, which facilitates large-scale production and rapid construction.

[0032] The flood control and seepage interception wall includes the wall body 1, which is a vertically installed cuboid seepage interception wall structure. It is constructed entirely of high-strength, impermeable concrete and cast in one piece. The interior of the wall is reinforced with bidirectional steel mesh along both its length and height. Steel plates and anchor bolts are pre-embedded at the bottom of the wall body 1, embedded within the foundation. These components are then integrated with the foundation through secondary concrete pouring, ensuring the wall does not slip under the continuous lateral impact of floodwaters.

[0033] A partition plate 9 is fixedly installed at the center of the interior of the cutoff wall body 1. The partition plate 9 and the cutoff wall body 1 are integrally cast structures. The partition plate 9 evenly divides the inner cavity of the cutoff wall body 1 into multiple independent, sealed installation cavities 44. The multiple sealed installation cavities 44 are evenly distributed along the length of the cutoff wall body 1, and the sealed installation cavities 44 are not interconnected. The inner wall of each sealed installation cavity 44 is treated with smooth seepage prevention, and the inner wall surface is flat to ensure that no water leakage or pressure loss occurs when the sealing piston 43 slides up and down inside.

[0034] Each sealed installation cavity 44 is internally sealed and slidably connected to a sealing piston 43. The outer ring of the piston is covered with multiple layers of wear-resistant rubber sealing rings, which are evenly distributed along the outer ring of the piston. The sealing rings are tightly fitted to the inner wall of the sealed installation cavity 44, and the fitting gap is uniform and controllable. This ensures smooth up-and-down sliding of the sealing piston 43 while maintaining the airtightness and water pressure stability of the cavity. A lifting rod 45 is fixedly connected to the upper center of the sealing piston 43. The upper end of the lifting rod 45 passes through the top of the sealed installation cavity 44 and extends to the top of the cutoff wall body 1, and is fixedly connected to the bottom center of the secondary cutoff plate 41. A cover plate 42 is fixedly installed on the top of the secondary cutoff plate 41. The cross-sectional area of ​​the cover plate 42 is larger than that of the secondary cutoff plate 41. It is used to prevent water and floating debris from entering the interior of the wall through the top gaps, while increasing the water-blocking area and improving the overall water-blocking and seepage prevention effect.

[0035] Multiple inlet overflow holes 2 are provided on the outer wall of the water-facing side of the cutoff wall body 1. The inlet overflow holes 2 are circular through holes, evenly distributed along the height of the cutoff wall body 1, and their positions correspond one-to-one with the sealing installation cavity 44. Each inlet overflow hole 2 has a detachable and sealed filter screen 3 at its outer port. The filter screen 3 can effectively filter the silt and floating debris carried by floods, preventing debris from entering the channel and causing blockage, and ensuring smooth water flow into the cavity. The cutoff wall body 1 has inlet channels inside, corresponding to the number and position of the inlet overflow holes 2. The inlet channels are arranged in an L-shape, with one end connected to the inlet overflow hole 2 and the other end connected to the lower cavity of the sealing installation cavity 44. A one-way valve is installed inside the inlet channel. The one-way valve only allows water to enter the sealing installation cavity 44 from the water-facing side and prevents water from flowing out of the cavity in the opposite direction, thereby ensuring stable water pressure inside the cavity.

[0036] At least two connecting grooves 13 are provided on each of the two transverse sidewalls of the secondary cutoff plate 41. The connecting grooves 13 are rectangular grooves with smooth inner walls, flat and burr-free. An elastic connector 14 is fixedly installed inside one of the connecting grooves 13. A connecting plate 15 is elastically connected to the end of the elastic connector 14. The upper and lower end faces of the connecting plate 15 are both made of smooth arc surfaces to facilitate locking and sliding and reduce locking resistance. When multiple sections of the cutoff wall body 1 are sequentially spliced ​​and combined along the transverse side of the embankment foundation, as the secondary cutoff plate 41 moves upward and downward, the connecting plate 15 automatically extends outward under the elastic force of the elastic connector 14 and smoothly locks into the connecting groove 13 of the adjacent secondary cutoff plate 41, so that the adjacent secondary cutoff plates 41 form a continuous connection structure, improving the overall water-blocking continuity and seepage prevention stability.

[0037] Multiple mounting grooves 53 are symmetrically formed on the inner wall of the sealed mounting cavity 44. The mounting grooves 53 are evenly distributed along the vertical direction. A movable block 51 is slidably connected inside each mounting groove 53. The lower surface of the movable block 51 is set as a smooth arc surface, which facilitates the upward pressing and sliding of the sealing piston 43 and reduces movement resistance. A reset elastic element 52 is fixedly connected between the movable block 51 and the inner wall of the mounting groove 53. The reset elastic element 52 is in the extended state under normal conditions, stably pushing the movable block 51 outward. When the sealing piston 43 moves upward to the maximum limit height, the pressing force of the sealing piston 43 on the movable block 51 disappears. Under the elastic force of the reset elastic element 52, the movable block 51 automatically extends out of the mounting groove 53 and stably abuts and supports the lower end face of the sealing piston 43, preventing the sealing piston 43 from falling back downward, realizing mechanical locking and positioning, and ensuring that the secondary seepage intercepting plate 41 maintains a stable position under continuous water flow impact.

[0038] The inner wall of the cutoff wall body 1 has horizontally arranged connecting grooves 57, which are interconnected with multiple mounting grooves 53 to form a through-type transmission space. Inside the cutoff wall body 1, a bidirectional screw 56 is rotatably mounted via bearings. The bidirectional screw 56 is horizontally arranged, and its two ends are fixedly connected to the cutoff wall body 1 via bearing seats. Two symmetrically distributed drive rods 58 are threaded onto the outer surface of the bidirectional screw 56. Mounting shells 55, matching the number of mounting grooves 53, are fixedly connected to the outer side of the drive rods 58. A movable plate 54 is slidably connected inside the mounting shell 55, and the end of the movable plate 54 is fixedly connected to a movable block 51. One end of the bidirectional screw 56 extends through to the outside of the cutoff wall body 1 and is fixedly connected to a rotating handle 11. By rotating the rotating handle 11, the bidirectional screw 56 can be driven to rotate, causing the two drive rods 58 to move away from each other along the bidirectional screw 56. Then, through the mounting shell 55 and the movable plate 54, the movable block 51 is driven to retract smoothly into the mounting groove 53, releasing the lock on the sealing piston 43, so that the sealing piston 43 can be stably reset and fall under the action of gravity. The cross-section of the movable plate 54 is designed as a T-shape, with its vertical section fixedly connected to the movable block 51 and its horizontal section serving as a limiting and pressure-bearing section. The mounting housing 55 has a T-shaped clearance groove inside, adapted to the T-shaped structure of the movable plate 54, and the movable plate 54 is fitted into the clearance groove with clearance. The clearance space inside the mounting housing 55 extends along its length, initially providing only translational clearance for the movable plate 54 without generating a driving effect. When the mounting housing 55 moves synchronously to the end of the clearance space along with the drive rod 58, the inner wall of the mounting housing 55 abuts against the end face of the T-shaped horizontal section of the movable plate 54, pushing the movable plate 54 and the mounting housing 55 to move synchronously and in the same direction.

[0039] Limiting plates 8 are fixedly installed on both the left and right sides of the interior of the cutoff wall body 1. The limiting plates 8 are horizontal rigid plates used to limit the maximum rising height of the sealing piston 43, preventing the piston from overtraveling and causing structural damage, deformation, or jamming. A vertically arranged drive rack 72 is fixedly connected to one side of the top of the sealing piston 43, and the drive rack 72 rises and falls synchronously with the piston. Both the left and right side walls of the interior of the cutoff wall body 1 are provided with connecting cavities 12. A connecting shaft 76 is rotatably installed inside the connecting cavity 12 via a rotating shaft. A drive gear 75 and a first synchronous pulley 71 are fixedly installed on the connecting shaft 76 in sequence. The drive gear 75 and the drive rack 72 mesh with each other to form a stable transmission engagement. A second synchronous pulley 74 is connected to the outside of the first synchronous pulley 71 via a synchronous belt 73. A drive screw 61 is fixedly connected to the end of the second synchronous pulley 74. The drive screw 61 is horizontally arranged, and a sealing plate 62 is threadedly connected to its outer surface. When the sealing piston 43 moves upward, the sealing plate 62 is driven to move smoothly laterally through the multi-stage linkage of the drive rack 72, drive gear 75, synchronous pulley 1 71, synchronous pulley 2 74 and drive screw 61, thereby sealing the gap between the secondary seepage intercepting plate 41 and the seepage intercepting wall body 1 and improving the overall sealing and seepage prevention performance.

[0040] At least two drain valves 10 are installed on the outer wall of the backwater side of the cutoff wall body 1. The drain valves 10 are manual ball valves or plug valves. The inlet of the drain valve 10 is connected to the lower cavity of the sealing installation cavity 44, and the outlet is directly connected to the outside. After the flood recedes or the water level drops, the drain valves 10 can be opened directly to quickly and completely drain the water inside the sealing installation cavity 44 under the action of gravity, reduce the pressure inside the cavity, eliminate the resistance of the water to the reset of the sealing piston 43, and thus ensure that the reset process of the sealing piston 43, the lifting rod 45 and the secondary cutoff plate 41 is smooth and unobstructed, and can be quickly restored to the initial standby state.

[0041] A method for using a flood control and seepage interception wall in smart water conservancy includes the following steps: The multiple sections of the cutoff wall body 1 are arranged horizontally along the embankment axis. Each section of the cutoff wall body 1 is fitted and positioned together. The internal sealed installation cavity 44, connecting cavity 12 and connecting groove 57 are kept coaxial and corresponding, so that all the secondary cutoff plates 41 are at the same initial vertical height, forming a continuous and complete flood control and seepage interception barrier. When the flood level rises to the height of the inlet overflow hole 2, the water flows in through the inlet overflow hole 2 under the action of the water level difference. The filter screen 3 filters the mud, sand, debris and floating objects in the water flow to prevent debris from entering the channel and causing blockage. The filtered water flows into the lower cavity of the sealed installation cavity 44 through the inlet channel and the one-way valve. The one-way valve restricts the water flow to flow out in the opposite direction, so that a stable water pressure is formed in the sealed installation cavity 44. The water pressure inside the sealed installation cavity 44 continuously acts on the bottom of the sealing piston 43, pushing the sealing piston 43 to slide upward along the inner wall of the cavity. The sealing piston 43 drives the lifting rod 45 to move upward synchronously. The lifting rod 45 transmits the force to the secondary cutoff plate 41, driving the secondary cutoff plate 41 and the cover plate 42 to rise vertically, automatically increasing the overall water-blocking height and seepage prevention coverage of the cutoff wall body 1 to adapt to the flood control needs of different water levels. During the rising process of the cutoff plate 41, the elastic connector 14 continuously releases elastic force, pushing the connecting plate 15 to extend outward; the connecting plate 15 extends along the connection of the adjacent secondary cutoff plate 41. The inner wall of the groove 13 slides into the groove, forming a tight and sealed connection between adjacent secondary seepage intercepting plates 41, eliminating the lateral splicing gap and preventing water leakage from the splicing position; in addition, when the sealing piston 43 moves upward to contact the limiting plate 8, it will reach its maximum rising height; at this time, the squeezing force of the sealing piston 43 on the lower arc surface of the movable block 51 disappears, and the movable block 51 extends out of the mounting groove 53 under the elastic force of the reset elastic element 52 and abuts against and supports the lower end face of the sealing piston 43, restricting the sealing piston 43 from falling back downward, realizing mechanical locking and positioning, and ensuring that the secondary seepage intercepting plate 41 remains stable under the impact of flood; When the sealing piston 43 rises, it synchronously drives the drive rack 72 to move vertically. The drive rack 72 meshes with the drive gear 75, which drives the connecting shaft 76 and the first synchronous pulley 71 to rotate synchronously. The first synchronous pulley 71 drives the second synchronous pulley 74 to rotate through the synchronous belt 73. The second synchronous pulley 74 drives the drive screw 61 to rotate coaxially. The drive screw 61 is threaded with the sealing plate 62, which drives the sealing plate 62 to move laterally, sealing the top gap between the secondary seepage intercepting plate 41 and the seepage intercepting wall body 1, thus improving the overall seepage prevention and sealing effect. After the flood recedes, the drain valve 10 is opened, and the water inside the sealed installation cavity 44 is discharged through the drain valve 10 under the action of gravity, reducing the water pressure inside the cavity. Rotating the handle 11 drives the bidirectional screw 56 to rotate, causing the two drive rods 58 to move away from each other along the bidirectional screw 56. The drive rods 58 drive the installation shell 55 and the movable plate 54 to move synchronously, pulling the movable block 51 back into the installation groove 53, releasing the lock on the sealing piston 43. The sealing piston 43, the lifting rod 45, and the secondary seepage intercepting plate 41 reset downwards under their own gravity, while the rack 72 drives the various transmission structures to reset, and the sealing plate 62 returns to its initial position, preparing for the next flood rise.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flood control and seepage interception wall for smart water conservancy, comprising a seepage interception wall body (1), characterized in that: The cutoff wall body (1) is a vertical anti-seepage wall structure, and a partition plate (9) is fixedly installed inside it. The partition plate (9) divides the inner cavity of the cutoff wall body (1) into multiple closed sealing installation cavities (44). The sealed installation cavity (44) is internally sealed and slidably connected with a sealing piston (43). The upper end of the sealing piston (43) is fixedly connected with a lifting rod (45). The upper end of the lifting rod (45) is fixedly connected with a secondary seepage intercepting plate (41). The top of the secondary seepage intercepting plate (41) is fixedly installed with a cover plate (42). The outer wall of the cutoff wall body (1) is provided with multiple water inlet overflow holes (2). The cutoff wall body (1) is provided with an inlet channel corresponding to each water inlet overflow hole (2). The water inlet overflow hole (2) is connected to the lower cavity of the sealing installation cavity (44) through the inlet channel. A one-way valve is installed in the inlet channel to allow water to enter the sealing installation cavity (44). When the flood level rises to the set height, the water flows into the sealing installation cavity (44) through the water inlet overflow hole (2) and the inlet channel, pushing the sealing piston (43) to move upward. Then, the auxiliary cutoff plate (41) is driven to rise synchronously through the lifting rod (45), automatically increasing the overall water blocking height and seepage prevention range of the cutoff wall body (1).

2. The flood control and seepage interception wall according to claim 1, characterized in that: The secondary cutoff plate (41) has at least two connecting grooves (13) on its two transverse side walls. An elastic connector (14) is fixedly installed inside one of the connecting grooves (13). A connecting plate (15) is elastically connected to the end of the elastic connector (14). The upper and lower end faces of the connecting plate (15) are both set as arc surfaces that facilitate sliding and snapping. When the multiple cutoff wall bodies (1) are spliced ​​together in the transverse direction, as the secondary cutoff plate (41) moves up and down, the connecting plate (15) automatically snaps into the connecting groove (13) of the adjacent secondary cutoff plate (41) under the elastic force of the elastic connector (14), so that a seamless sealing connection is formed between the adjacent secondary cutoff plates (41).

3. The flood control and seepage interception wall according to claim 1, characterized in that: The inner wall of the sealed mounting cavity (44) is symmetrically provided with multiple mounting grooves (53). A movable block (51) is slidably connected inside the mounting groove (53). A reset elastic element (52) is fixedly connected between the movable block (51) and the inner wall of the mounting groove (53). The lower end face of the movable block (51) is set as an arc surface that facilitates squeezing and sliding. When the sealing piston (43) moves upward to the maximum limit height, the movable block (51) automatically extends out of the mounting groove (53) under the elastic force of the reset elastic element (52) and abuts against and supports the lower end face of the sealing piston (43), thereby locking the sealing piston (43).

4. The flood control and seepage interception wall according to claim 3, characterized in that: The inner sidewall of the cutoff wall body (1) is provided with a transversely arranged connecting groove (57), which is connected to multiple installation grooves (53); a bidirectional screw (56) is rotatably installed inside the cutoff wall body (1) through a bearing, and two symmetrical drive rods (58) are threadedly connected to the outer surface of the bidirectional screw (56). The outer side of the drive rod (58) is fixedly connected to an installation shell (55) matching the number of installation grooves (53). A movable plate (54) is slidably connected inside the installation shell (55), and the end of the movable plate (54) is fixedly connected to a movable block (51).

5. The flood control and seepage interception wall according to claim 4, characterized in that: One end of the bidirectional screw (56) extends through to the outside of the cutoff wall body (1) and is fixedly connected to a rotating handle (11). By rotating the rotating handle (11), the bidirectional screw (56) can be driven to rotate, so that the two drive rods (58) move away from each other along the bidirectional screw (56). Then, through the mounting shell (55) and the movable plate (54), the movable block (51) is driven to retract into the mounting groove (53), thereby releasing the lock on the sealing piston (43).

6. The flood control and seepage interception wall according to claim 1, characterized in that: Limiting plates (8) are fixedly installed on both the left and right sides of the interior of the cutoff wall body (1). The limiting plates (8) are used to limit the maximum rising height of the sealing piston (43). A vertically arranged drive rack (72) is fixedly connected to one side of the top of the sealing piston (43). A connecting cavity (12) is opened on both the left and right side walls of the interior of the cutoff wall body (1). A connecting shaft (76) is rotatably installed inside the connecting cavity (12) through a rotating shaft. A drive gear (75) and a synchronous wheel (71) are fixedly installed on the connecting shaft (76) in sequence.

7. The flood control and seepage interception wall according to claim 6, characterized in that: The drive rack (72) meshes with the drive gear (75) to form a transmission engagement. The outside of the first synchronous pulley (71) is connected to the second synchronous pulley (74) via the synchronous belt (73). The end of the second synchronous pulley (74) is fixedly connected to the drive screw (61). The outer surface of the drive screw (61) is threaded with a sealing plate (62).

8. The flood control and seepage interception wall according to claim 1, characterized in that: At least two drain valves (10) are installed on the outer wall of the back side of the cutoff wall body (1). The inlet end of the drain valve (10) is connected to the lower cavity of the sealing installation cavity (44) to automatically discharge the water inside the sealing installation cavity (44) when the flood recedes and the water level drops, so as to facilitate the reset of the sealing piston (43).

9. The flood control and seepage interception wall according to claim 1, characterized in that: Each of the water inlet overflow holes (2) has a detachable and sealed filter screen (3) at its outer port, the filter screen (3) being used to filter out mud and debris carried by floods.

10. A method of using a flood control and seepage intercepting wall for smart water conservancy, applied to the flood control and seepage intercepting wall according to any one of claims 1-9, characterized in that, Includes the following steps: S1: The multiple sections of the cutoff wall body (1) are spliced ​​and installed sequentially along the transverse direction of the embankment foundation so that each section of the secondary cutoff board (41) is at the same vertical height; S2. When the flood comes, the water level rises and the water flows through the inlet overflow hole (2), filter screen (3) and inlet channel into the sealed installation cavity (44). The water pressure pushes the sealing piston (43), lifting rod (45) and secondary seepage interceptor plate (41) to rise automatically, increasing the water blocking and seepage prevention height. S3. During the rising process of the secondary seepage intercepting plate (41), the connecting plate (15) automatically snaps into the connecting groove (13) of the adjacent secondary seepage intercepting plate (41) under the action of the elastic connector (14) to achieve lateral sealing. S4. After the sealing piston (43) rises to its maximum height, the movable block (51) automatically extends and locks the sealing piston (43), while driving the rack (72) to drive the sealing plate (62) to seal the top gap through the linkage mechanism. S5. After the flood recedes, open the drain valve (10) to drain the water inside the sealed installation cavity (44), turn the rotating handle (11) to release the locking of the movable block (51), and the sealing piston (43), the secondary seepage interceptor plate (41) and the sealing plate (62) will automatically reset, completing one flood prevention and seepage prevention work cycle.

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