Hydraulic coupling self-locking breach plugging device and plugging method

Abstract

This invention relates to the field of flood control equipment technology and discloses a hydraulically coupled self-locking breach sealing device, comprising: mirror-symmetrical sealing units deployed on the backwater side of the dikes on both sides of the breach; each sealing unit includes: a dike-fitting plate fixed by a pre-embedded H-shaped base, with a lifting head on top for hoisting; and a hydraulic-mechanical coordination system: a movable water-blocking plate composed of an L-shaped water-blocking plate and a bottom water-blocking plate fixed at the lower end of the L-shaped water-blocking plate. This device cleverly utilizes the kinetic energy of the breach water flow itself to convert it into the driving force required for sealing through a hydraulically coupled self-locking mechanism. The horizontal component force generated after the water flow impacts the discharge chamber can automatically push the movable water-blocking plates on both sides to close towards the center of the breach, while the vertical component force enhances the clamping effect between the dike-fitting plate and the base, thereby achieving autonomous closure and self-locking without continuous external energy input, significantly improving the response speed and energy efficiency of the sealing process.

Description

Technical Field

[0001] This invention relates to the field of flood control equipment technology, specifically to a hydraulically coupled self-locking breach sealing device and sealing method. Background Technology

[0002] A breach refers to a localized damage to a dam caused by floods, seepage, or structural instability, resulting in a gap where water flows through and penetrates the dam. Once a breach occurs, the water flow rapidly expands the area of ​​the gap, leading to the complete collapse of the dam and seriously threatening the lives and property of people downstream and the stability of the regional ecosystem. Breaches are characterized by their suddenness, rapid evolution, and destructive power, especially during periods of sustained high water levels. If they are not effectively sealed in time, they can often cause catastrophic consequences within hours.

[0003] Traditional methods for sealing breaches mainly include throwing boulders, sinking ships, driving piles for cofferdams, covering with geotextiles, and manually piling willow and stone pillows. These methods generally rely heavily on manpower, heavy machinery, and locally sourced materials, and face many limitations in actual emergency rescue. First, the operation process is highly dependent on on-site construction conditions. When the water flow at the breach is rapid, the riverbed is soft, or visibility is low at night, it is difficult for personnel and equipment to approach, posing extremely high safety risks. Second, most traditional methods are passive sealing methods, requiring the flow rate to be slowed down or a retaining wall to be constructed before the main sealing can proceed, which is time-consuming and difficult to deal with rapidly developing small and medium-sized breaches. Third, the sealing structures are mostly temporary structures with poor integrity, easily eroded and washed away by subsequent water flow, often requiring repeated reinforcement. In addition, in the stage where the embankment has not completely collapsed but a dangerous situation has already emerged, traditional methods lack the ability to effectively support and reinforce the existing embankment, making it difficult to prevent the breach from expanding further. Although some technologies attempt to introduce prefabricated components or mechanized equipment, problems such as positioning difficulties, insufficient sealing, and unstable fixation still exist in complex water flow environments. The overall level of automation and adaptability is low, making it difficult to meet the core requirements of modern flood control for "fast, safe, and reliable" sealing. Therefore, it is necessary to design a hydraulically coupled self-locking breach sealing device that is practical, safe, and reliable. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulically coupled self-locking breach sealing device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hydraulically coupled self-locking breach sealing device, comprising:

[0006] The sealing units are mirror-symmetrical and deployed on the backwater side of the dikes on both sides of the breach. Each sealing unit includes:

[0007] The dam bonding plate is fixed by a pre-embedded H-shaped base, and a lifting head is set on the top for hoisting.

[0008] Hydraulic machinery coordinated system:

[0009] The movable water-blocking plate consists of an L-shaped water-blocking plate and a bottom water-blocking plate fixed to the lower end of the L-shaped water-blocking plate. It slides along the dam's bonding plate via a movable component.

[0010] The docking assembly locks the structures on both sides after the movable water-blocking plate closes;

[0011] A flow diversion assembly, fixed inside a movable water-blocking plate, includes:

[0012] The vertically inclined guide vane b forms an acute angle with the horizontal plane;

[0013] The water flow anti-scouring plate and the vertical inclined guide plate b are set parallel to each other at intervals, together forming a discharge cavity;

[0014] A controllable discharge outlet is located on the vertically inclined guide plate b;

[0015] The outlet is located on the backwater side of the discharge cavity;

[0016] When the water flow from the breach impacts the drainage cavity at an angle downwards, it generates two-dimensional forces:

[0017] The horizontal force drives the movable water-blocking plates on both sides to close towards the center of the breach;

[0018] The vertical force pushes the dam bonding plate to press firmly against the H-shaped base;

[0019] By adjusting the opening of the controllable vent, a gradient pressure difference is formed in the vent cavity, maintaining a dynamic balance between the closing thrust and the breach flow.

[0020] According to the above technical solution, the mobile component includes:

[0021] Trapezoidal sliders are symmetrically fixed to the side wall of L-shaped water-blocking plates and slidably embedded in the trapezoidal grooves of the dam bonding plates.

[0022] The guide rod is fixed inside the trapezoidal groove and passes through the trapezoidal slider;

[0023] The hydraulic cylinder has its body fixed to the side wall of the dam's bonding plate, and its telescopic end fixed to the side wall of the L-shaped water-blocking plate.

[0024] According to the above technical solution, the docking component includes:

[0025] Locking pin, fixed to the side wall of the movable water-blocking plate on one side;

[0026] A locking socket is located on the side wall of the movable water-blocking plate on the other side;

[0027] Multi-stage locking ratchet, which is movably located in the movable slot at the top of the locking socket;

[0028] A telescopic spring, fixed to the top of the movable slot, drives the multi-stage locking ratchet to engage with the locking slot of the locking pin.

[0029] According to the above technical solution, the flow diversion and guiding component further includes:

[0030] A horizontally inclined plate that extends downwards and inwards;

[0031] A horizontal grille is located at the junction of the horizontal inclined plate and the vertical inclined guide plate;

[0032] The vertically inclined guide plate and the bottom water-blocking plate form an acute angle;

[0033] The horizontal inclined plate, the vertical inclined guide plate, the bottom water blocking plate, the water flow anti-scouring plate and the sealing back plate together form the discharge cavity.

[0034] According to the above technical solution, the controllable discharge port is a gradient circular hole array, comprising:

[0035] Pressure regulating orifices are located at the top of the vertically inclined guide plate;

[0036] The flow regulation orifice is located in the middle of the vertically inclined guide plate;

[0037] The large discharge hole is located at the bottom of the vertically inclined guide plate.

[0038] According to the above technical solution, the controllable discharge port is equipped with a segmented flow control plate, including:

[0039] The top adjustment plate can be moved to cover the pressure regulating hole area and has through holes corresponding to the pressure regulating holes;

[0040] A top linear motor drives the top adjusting plate to move horizontally via a top lead screw.

[0041] The central regulating plate covers the flow regulation orifice area and has corresponding through holes.

[0042] A central linear motor drives the central adjusting plate to move horizontally via a central lead screw;

[0043] The bottom adjustment plate can be adjusted to cover the large drainage hole area and is equipped with corresponding through holes;

[0044] A linear motor at the bottom drives the bottom adjusting plate to move horizontally via a bottom lead screw.

[0045] According to the above technical solution, the docking component further includes:

[0046] U-shaped airbag grooves are provided at the joint edge of the movable water-blocking plate;

[0047] High-pressure airbags are pre-embedded in U-shaped airbag grooves;

[0048] A miniature air pump is connected to a high-pressure airbag via an air circuit.

[0049] According to the above technical solution, a gravity locking component is provided between the dam bonding plate and the H-shaped base, the gravity locking component comprising:

[0050] H-shaped positioning groove, closed at the top and gradually widening at the bottom;

[0051] The pressure sensor is located on the top wall inside the H-shaped positioning groove;

[0052] The wedge-shaped locking tongue is driven by an electric telescopic rod.

[0053] A wedge-shaped opening is located on the side wall of the H-shaped base.

[0054] According to the above technical solution, an active pile stabilizing mechanism is provided on the side wall of the L-shaped water-blocking plate, and the active pile stabilizing mechanism includes:

[0055] Hydraulic expansion piles are fixed to the side wall of an L-shaped water-blocking plate.

[0056] The drive motor is mounted on the telescopic end of the hydraulic telescopic pile via a lifting seat;

[0057] The spiral anchor disc is fixed to the telescopic end of the drive motor.

[0058] A hydraulically coupled self-locking breach sealing method includes the following steps:

[0059] S1, Embedded base and hoisting positioning

[0060] H-shaped bases were pre-embedded on the backwater side of the dikes on both sides of the breach, and the dike bonding plate was hoisted onto the H-shaped bases using a hoisting head.

[0061] S2, gravity-triggered self-locking

[0062] Release the dam bonding plate and let it slide into the H-shaped base along the bottom of the H-shaped positioning groove using its own weight;

[0063] The breached water flow impacts the discharge chamber, and the vertical force drives the two dam bonding plates on both sides to move downwards and fit into the H-shaped base;

[0064] When the pressure sensor detects the threshold pressure, the electric telescopic rod drives the wedge-shaped locking tongue to insert into the wedge-shaped opening and lock radially.

[0065] S3, hydraulically driven closure

[0066] The hydraulic cylinder is activated to push the movable water-blocking plate to initially close;

[0067] The water flow from the breach impacts the discharge chamber, and the horizontal force drives the L-shaped water-blocking plates on both sides to automatically close towards the center of the breach.

[0068] S4, Dynamic pressure relief control

[0069] Real-time monitoring of the breach flow rate, and adjustment of the controllable discharge port opening via a segmented flow control panel:

[0070] In the initial stage of closure: reduce the opening of the controllable vent and increase the jet velocity to enhance the horizontal and vertical components of the force;

[0071] In the later stage of closure: increase the opening of the controllable vent, reduce the jet velocity, and prevent structural overload;

[0072] S5, docking lock and seal

[0073] When the L-shaped water-blocking plates on both sides come into contact:

[0074] The locking pin is inserted into the locking hole, and the multi-stage locking ratchet engages the locking groove under the action of the telescopic spring.

[0075] A miniature air pump inflates the high-pressure airbag, which then expands and fills the joint gap.

[0076] S6, Riverbed Fixation Reinforcement

[0077] Activate the active pile stabilizing mechanism:

[0078] The hydraulic telescopic pile extends downwards and penetrates the silt layer;

[0079] The drive motor rotates the spiral anchor disc to lock the riverbed.

[0080] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0081] (1) This device cleverly utilizes the kinetic energy of the breach water flow itself to convert it into the driving force required for sealing through a hydraulic coupling self-locking mechanism. The horizontal component force generated after the water flow impacts the discharge chamber can automatically push the movable water-blocking plates on both sides to close towards the center of the breach, while the vertical component force enhances the pressing effect between the dam bonding plate and the base, thereby achieving autonomous closure and self-locking without the need for continuous external energy input, which significantly improves the response speed and energy efficiency of the sealing process.

[0082] (2) This device adopts a multi-locking and sealing structure to ensure the overall stability and water-stopping reliability of the sealing body under high flow rate and high water pressure environment. The mechanical docking component achieves rigid engagement through locking pins, multi-level locking ratchet and telescopic spring. At the same time, it is supplemented by high-pressure airbags pre-embedded in the U-shaped airbag groove, which flexibly fill the docking gap after inflation, forming a double sealing system that combines rigidity and flexibility, effectively preventing leakage.

[0083] (3) This device is equipped with a segmented controllable discharge system. By setting pressure regulating small holes, flow regulating medium holes and discharge large holes at different heights of the vertical inclined guide plate, and with the independent driving top, middle and bottom adjustment plates, the dynamic control of the pressure distribution inside the discharge chamber can be realized. This design can adjust the discharge opening in real time according to the blocking stage, enhance the hydraulic driving effect in the early stage, release the overload pressure in the later stage, and maintain structural safety and functional balance.

[0084] (4) The moving component of this device adopts the fitting of trapezoidal slider and trapezoidal groove, and is supplemented by through guide rod to ensure that the L-shaped water blocking plate has a precise trajectory and runs smoothly during the sliding process, avoiding deviation or jamming. At the same time, the hydraulic cylinder provides initial thrust and auxiliary adjustment capability, so that the closing action has both initiative and controllability, and adapts to the deployment needs under different breach conditions.

[0085] (5) The device is equipped with a gravity locking component at the base connection. It uses the nested structure of H-shaped positioning groove and H-shaped base to achieve self-guided positioning. The pressure sensor senses the contact state and triggers the electric telescopic rod to drive the wedge-shaped locking tongue to insert into the wedge-shaped opening to complete radial locking. This mechanism organically combines gravity self-positioning, sensor feedback and active execution to ensure a firm and reliable fixed connection between the sealing unit and the dam base.

[0086] (6) This device integrates an active pile stabilization mechanism. After the sealing is completed, it can automatically insert a spiral anchor plate into the depth of the riverbed. By pressing down the hydraulic telescopic pile and driving the motor to rotate, the spiral anchor plate is drilled into the soil to form a deep fixation, which significantly improves the overall anti-overturning and anti-sliding ability. It is especially suitable for soft foundation conditions such as silt and sand layers, and enhances the adaptability and long-term stability of the device in complex riverbed environments.

[0087] (7) The device adopts a modular and symmetrical design. The functional components are compactly arranged and coordinated in an orderly manner, which facilitates factory prefabrication, on-site hoisting and rapid deployment. Combined with the automated control unit, it can realize intelligent operation of the entire process from positioning, closing, locking to pile stabilization, which greatly reduces the risks of manual intervention and emergency rescue operations, and improves the efficiency and success rate of emergency sealing of breaches. Attached Figure Description

[0088] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0089] Figure 1 This is a first perspective view of the present invention;

[0090] Figure 2 This is a second perspective view of the present invention;

[0091] Figure 3This is a third perspective view of the present invention;

[0092] Figure 4 This is a fourth perspective schematic diagram of the present invention;

[0093] Figure 5 This is the fifth perspective schematic diagram of the present invention;

[0094] Figure 6 This is a first partial three-dimensional schematic diagram of the present invention;

[0095] Figure 7 This is a second partial perspective view of the present invention;

[0096] Figure 8 This is a third partial perspective view of the present invention;

[0097] Figure 9 This is a fourth partial perspective view of the present invention;

[0098] Figure 10 This is a fifth partial perspective view of the present invention;

[0099] Figure 11 This is a sixth partial perspective view of the present invention;

[0100] Figure 12 This is the present invention. Figure 5 A magnified view of part A in the diagram;

[0101] Figure 13 This is the present invention. Figure 9 A magnified view of section B in the diagram;

[0102] In the diagram: 101-Dike bonding plate, 102-H-type base, 103-Lifting head, 200-Mobile water-blocking plate, 201-L-shaped water-blocking plate, 202-Bottom water-blocking plate, 300-Mobile component, 301-Trapezoidal slider, 302-Trapezoidal groove, 303-Guide rod, 304-Hydraulic cylinder, 400-Docking component, 401-Locking pin, 402-Locking hole, 403-Multi-stage locking ratchet, 404-Telescopic spring, 405-U-shaped airbag groove, 406-High-pressure airbag, 407-Miniature air pump, 500-Drainage and flow guiding component, 501a-Horizontal inclined plate, 501b-Vertical inclined flow guiding plate, 502-Water flow anti-scour plate, 503-Drainage cavity, 504-Horizontal grid, 505-Controllable drainage 505a-Pressure regulating small hole, 505b-Flow regulating medium hole, 505c-Drain large hole, 506-Discharge outlet, 507-Sealing back plate, 600-Segmented flow control plate, 601-Top adjusting plate, 602-Top linear motor, 603-Top lead screw, 604-Middle adjusting plate, 605-Middle linear motor, 606-Middle lead screw, 607-Bottom adjusting plate, 608-Bottom linear motor, 609-Bottom lead screw, 700-Gravity locking assembly, 701-H-type positioning groove, 702-Pressure sensor, 703-Wedge-shaped locking tongue, 704-Electric telescopic rod, 705-Wedge-shaped opening, 800-Active pile stabilizing mechanism, 801-Hydraulic telescopic pile, 802-Drive motor, 803-Spiral anchor plate. Detailed Implementation

[0103] The technical solutions of 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.

[0104] Please see Figure 1-13 The present invention provides a technical solution: a hydraulically coupled self-locking breach sealing device, comprising:

[0105] The sealing units are mirror-symmetrical and deployed on the backwater side of the dikes on both sides of the breach. Each sealing unit includes:

[0106] The dam bonding plate 101 is fixed by a pre-embedded H-shaped base 102, and a lifting head 103 is provided on the top for lifting.

[0107] Hydraulic machinery coordinated system:

[0108] The movable water-blocking plate 200 consists of an L-shaped water-blocking plate 201 and a bottom water-blocking plate 202 fixed to the lower end of the L-shaped water-blocking plate 201, and slides along the dam bonding plate 101 via the movable component 300.

[0109] The docking component 400 locks the structures on both sides after the movable water-blocking plate 200 is closed;

[0110] The flow diversion assembly 500 is fixed inside the movable water-blocking plate 200 and includes:

[0111] The vertically inclined guide vane 501b forms an acute angle with the horizontal plane;

[0112] The water flow anti-scouring plate 502 is set parallel to and spaced apart from the vertical inclined guide plate 501b, together forming the discharge cavity 503;

[0113] A controllable discharge port 505 is provided on a vertically inclined guide plate 501b;

[0114] The outlet 506 is located on the backwater side of the discharge cavity 503;

[0115] When the water flow from the breach impacts the discharge chamber 503 at an angle downwards, it generates a two-dimensional force:

[0116] The horizontal force drives the two movable water-blocking plates 200 on both sides to close towards the center of the breach.

[0117] The vertical force pushes the dam bonding plate 101 to press the H-shaped base 102 tightly;

[0118] By adjusting the opening of the controllable vent 505, a gradient pressure difference is formed in the vent cavity 503, maintaining a dynamic balance between the closing thrust and the breach flow.

[0119] Specifically, the moving component 300 includes:

[0120] Trapezoidal slider 301 is symmetrically fixed to the side wall of L-shaped water-blocking plate 201 and slidably embedded in the trapezoidal groove 302 of dam bonding plate 101;

[0121] The guide rod 303 is fixed inside the trapezoidal groove 302 and passes through the trapezoidal slider 301;

[0122] Hydraulic cylinder 304, the cylinder body is fixed to the side wall of the dam bonding plate 101, and the telescopic end is fixed to the side wall of the L-shaped water-blocking plate 201;

[0123] The movable component 300 is a key structure for achieving stable sliding and controllable displacement of the movable water-blocking plate 200 relative to the dam bonding plate 101 in the sealing unit. Its overall function is to ensure that the L-shaped water-blocking plate 201 can smoothly and reliably advance or retract towards the breach center in the horizontal direction, while maintaining the overall rigidity and guiding accuracy of the structure. The trapezoidal slider 301 is symmetrically fixed to the side wall of the L-shaped water-blocking plate 201, and its cross-sectional shape matches the trapezoidal groove 302 provided on the dam bonding plate 101. It slides into the trapezoidal groove 302 through an embedded method. This structural design not only provides a more stable sliding effect but also ensures the stability and controllability of the breach center. The large contact area is designed to withstand the lateral forces generated by the water flow impact. Furthermore, the geometric constraints of the trapezoidal cross-section effectively prevent the L-shaped water-blocking plate 201 from deflecting, tilting, or detaching during movement, thus ensuring the stability and reliability of the movement. The guide rod 303 is symmetrically fixed inside the trapezoidal groove 302 and penetrates the central area of ​​the trapezoidal slider 301. This component primarily provides precise guidance, restricting the degrees of freedom of the L-shaped water-blocking plate 201 during sliding to prevent swaying or jamming due to water flow disturbance or uneven structural stress. The cooperation between the guide rod 303 and the trapezoidal slider 301... The linearity of the movement path is further enhanced, enabling the two movable water-blocking plates 200 to move synchronously and symmetrically toward the center of the breach, providing a good positional basis for subsequent sealing. The cylinder body of the hydraulic cylinder 304 is fixed to the side wall of the dam bonding plate 101, and its telescopic end is connected to the side wall of the L-shaped water-blocking plate 201. As an active driving element, the hydraulic cylinder 304 can provide initial thrust in the early stage of sealing, pushing the movable water-blocking plate 200 toward the breach to complete the initial closing action. In addition, when the hydraulic self-driving mechanism has not been fully established or manual intervention is required, the hydraulic cylinder 304... It can also serve as an auxiliary power source to achieve precise control of the position of the movable water-blocking plate 200, thereby improving the controllability and adaptability of the entire sealing process. In summary, the movable component 300 provides structural support and anti-detachment constraint through the sliding cooperation of the trapezoidal slider 301 and the trapezoidal groove 302, achieves high-precision linear guidance with the help of the guide rod 303, and provides controllable driving force with the hydraulic cylinder 304. The three work together to ensure the stable, reliable and controllable movement of the movable water-blocking plate 200 in complex water flow environments, laying the foundation for the realization of the function of the entire hydraulically coupled self-locking breach sealing device.

[0124] Specifically, the docking component 400 includes:

[0125] Locking pin 401 is fixed to the side wall of one movable water-blocking plate 200.

[0126] Locking hole 402 is located on the side wall of movable water-blocking plate 200 on the other side;

[0127] The multi-stage locking ratchet 403 is movably located in the movable groove at the top of the locking socket 402;

[0128] The telescopic spring 404 is fixed to the top of the movable slot and drives the multi-stage locking ratchet 403 to engage with the locking slot of the locking pin 401.

[0129] The docking assembly 400 is a key structure for ensuring reliable connection and self-locking of the two movable water-blocking plates 200 after they are closed in place. Its main function is to automatically complete mechanical locking when the two movable water-blocking plates 200 are in contact and aligned, preventing the closed sealing body from separating or misaligning due to water flow impact or structural vibration. The locking pin 401 is fixedly installed on the side wall of one of the movable water-blocking plates 200, and its end is provided with a locking groove for engagement. When the two movable water-blocking plates 200 close to the center of the breach to the docking position, the locking pin 401 will insert into the locking hole 402 on the other movable water-blocking plate 200, providing a basic mating structure for subsequent locking actions. The locking hole 402 is opened on the corresponding side wall of the other movable water-blocking plate 200, and its upper interior is provided with a movable groove to accommodate multi-stage locking ratchet teeth 403. This hole not only provides an insertion channel for the locking pin 401, but also guides the locking pin through its internal structure. The process of guiding and positioning the locking pin ensures accurate positioning. The multi-stage locking ratchet 403 is movably set in the movable groove at the top of the locking hole 402. Its tooth structure can match the locking groove on the locking pin 401. After the locking pin 401 is fully inserted into the locking hole 402, the multi-stage locking ratchet 403 can move downward under the action of gravity or external force and embed into the locking groove to form a mechanical interlock. Due to the multi-stage tooth design, even if there is a slight deviation in the insertion depth of the pin, at least one tooth groove can still be effectively engaged, thereby improving the fault tolerance and reliability of the lock. The telescopic spring 404 is fixed to the top of the movable groove. One end of its spring is connected to the top of the groove, and the other end acts on the multi-stage locking ratchet 403. The telescopic spring 404 always applies a downward elastic force to the multi-stage locking ratchet 403 to ensure that it can quickly and stably engage with the locking groove after the locking pin 401 enters the locking hole 402, so as to achieve automatic locking.

[0130] Specifically, the outflow guiding assembly 500 further includes:

[0131] The transverse inclined plate 501a extends downwards and inwards;

[0132] A horizontal grille 504 is located at the junction of the transverse inclined plate 501a and the vertical inclined guide plate 501b.

[0133] The vertically inclined guide plate 501b forms an acute angle with the bottom water-blocking plate 202;

[0134] The horizontal inclined plate 501a, the vertical inclined guide plate 501b, the bottom water blocking plate 202, the water flow anti-scouring plate 502 and the sealing back plate 507 together form the discharge cavity 503.

[0135] The flow diversion assembly 500 is the core component for achieving the hydraulic coupling self-locking function. Its structural design aims to guide the water flow from the breach into a specific area in an orderly manner, thereby generating the required horizontal and vertical components. The transverse inclined plate 501a, the vertical inclined guide plate 501b, the bottom water-blocking plate 202, the water flow anti-scouring plate 502, and the sealing back plate 507 together form a closed flow cavity 503 with a specific geometric shape. This cavity not only serves as a water flow channel but is also a key space for hydraulic energy conversion. The transverse inclined plate 501a is located in the upper region of the flow cavity 503, extending downwards and inwards. Its main function is to guide the water flow flowing in from above or in front of the breach smoothly downwards and to initially constrain the water flow. To prevent water from directly impacting weak structural parts, this plate connects with the vertically inclined guide plate 501b, forming the upper front boundary of the discharge cavity 503. At the junction of the transversely inclined plate 501a and the vertically inclined guide plate 501b, a horizontal grid 504 is provided, serving a filtering and rectifying function. This intercepts floating debris or larger particles carried by the water flow, preventing them from entering the discharge cavity 503 and causing blockage or interference with the water flow pattern. It also helps to make the water flow distribution more uniform, improving the stability and predictability of subsequent hydraulic action. The vertically inclined guide plate 501b, as one of the main load-bearing surfaces of the discharge cavity 503, forms an acute angle with the bottom water-blocking plate 202. This acute angle structure ensures that the water flow is properly controlled after entering the discharge cavity 503. The strong change in direction generates a significant reaction force on the surface of the water flow scour barrier 502. This reaction force can be decomposed into two components, one horizontal and one vertical, which are used to drive the movable water-blocking plate 200 to close towards the center of the breach and to enhance the clamping effect between the dam bonding plate 101 and the H-shaped base 102. The bottom water-blocking plate 202 forms the bottom surface of the discharge cavity 503, which not only supports the entire flow guiding structure but also works with the vertically inclined flow guiding plate 501b to form an effective water flow deflection surface, ensuring that the water flow fully acts on the surface of the flow guiding plate and maximizing the hydraulic driving efficiency. The water flow scour barriers 502 are arranged parallel to each other inside the vertically inclined flow guiding plate 501b, together forming the internal channel of the discharge cavity 503. This plate mainly bears the main load. The buffering and dispersion of water flow impact prevents high-speed water flow from causing localized erosion or fatigue damage to the inner wall of the structure. It also helps maintain the stability of the flow field inside the venting cavity 503. The sealing back plate 507, located on the backwater side of the venting cavity 503, serves as the rear sealing surface of the cavity, ensuring that water can only flow out through preset paths (controllable vent 505 and outlet 506), thereby maintaining the required pressure distribution and flow characteristics within the cavity. In summary, the venting and guiding assembly 500, through the coordinated arrangement of the transverse inclined plate 501a, the vertical inclined guide plate 501b, the bottom water-blocking plate 202, the water flow anti-scouring plate 502, and the sealing back plate 507, constructs a fully functional venting cavity 503. This cavity not only effectively guides and constrains the breached water flow, but also...Furthermore, its specific geometric shape efficiently converts the kinetic energy of water into the mechanical force that drives the sealing structure to self-lock, which is the key to realizing the core mechanism of the device's hydraulically coupled self-locking mechanism;

[0136] Specifically, the controllable discharge port 505 is a gradient circular hole array, including:

[0137] Pressure regulating orifice 505a is located at the top of vertically inclined guide plate 501b;

[0138] The flow regulating orifice 505b is located in the middle of the vertically inclined guide plate 501b;

[0139] The large discharge hole 505c is located at the bottom of the vertically inclined guide plate 501b;

[0140] The controllable discharge port 505 is a key structure in the discharge guide assembly 500 used to regulate the water flow state and pressure distribution inside the discharge chamber 503. It adopts a gradually changing array of circular holes, with discharge holes of different sizes arranged in sections along the height of the vertically inclined guide plate 501b to achieve precise control of water velocity, flow rate, and internal pressure. The pressure regulating orifice 505a is located at the top of the vertically inclined guide plate 501b and has the smallest diameter. Its main function is to limit the top discharge area during the initial sealing phase or under low water level conditions. Maintaining a higher pressure in the upper part of the discharge chamber 503 enhances the effect of water flow on the upper section of the vertically inclined guide plate 501b, helps to increase the vertical clamping force, and ensures a tight fit between the dam fitting plate 101 and the H-shaped base 102. The flow regulation orifice 505b is located in the middle area of ​​the vertically inclined guide plate 501b, with a diameter between the pressure regulating small orifice 505a and the discharge large orifice 505c. The flow regulation orifice 505b in this area is mainly used to dynamically adjust the flow in the main flow area during the sealing process. The pressure gradient in the middle of the venting chamber 503 is balanced to maintain a stable horizontal closing thrust, preventing uneven movement or vibration of the movable water-blocking plate 200 due to sudden local pressure changes. The large venting orifice 505c is located at the bottom of the vertically inclined guide plate 501b, with the largest diameter. Its function is to provide a larger venting channel in the later stages of sealing or under high flow conditions, quickly releasing the water accumulated at the bottom of the venting chamber 503, reducing the bottom pressure, and preventing the structure from deforming or becoming unstable due to excessive water pressure. At the same time, the large bottom orifice also facilitates drainage. To reduce the risk of clogging, the controllable vent 505 is designed with pressure regulating small holes 505a, flow regulating medium holes 505b, and vent large holes 505c arranged in height zones on the vertical inclined guide plate 501b, forming a gradually increasing hole diameter from top to bottom. This design can regulate the pressure distribution in the upper, middle, and lower regions of the vent cavity 503 according to the water flow characteristics at different stages of the breach, thereby synergistically optimizing the ratio of horizontal closing force and vertical clamping force, and achieving dynamic balance and structural safety during the sealing process.

[0141] Specifically, the controllable discharge port 505 is equipped with a segmented flow control board 600, including:

[0142] The top adjustment plate 601 movably covers the area of ​​the pressure regulating hole 505a and is provided with a through hole corresponding to the pressure regulating hole 505a.

[0143] The top linear motor 602 drives the top adjusting plate 601 to move horizontally via the top lead screw 603;

[0144] The central regulating plate 604 covers the area of ​​the flow regulating orifice 505b and is provided with a corresponding through hole;

[0145] The central linear motor 605 drives the central adjusting plate 604 to move horizontally via the central lead screw 606;

[0146] The bottom adjusting plate 607 can be moved to cover the area of ​​the large discharge hole 505c, and is provided with a corresponding through hole;

[0147] The bottom linear motor 608 drives the bottom adjusting plate 607 to move horizontally via the bottom lead screw 609;

[0148] The segmented flow control plate 600 is an active adjustment mechanism designed to achieve precise and dynamic control of the controllable discharge port 505. Its core function is to adjust the pressure distribution and water flow state inside the discharge chamber 503 in real time by independently controlling the opening and closing degree of the discharge orifices in each area, thereby adapting to the hydraulic requirements of different stages of breach sealing. The top adjustment plate 601 movably covers the area where the pressure regulating orifice 505a is located. It has through holes corresponding to the position and number of pressure regulating orifices 505a. When the top adjustment plate 601 moves horizontally, the overlapping area between its through holes and the pressure regulating orifices 505a changes accordingly, thereby precisely adjusting the discharge capacity of the top area. This adjustment plate is driven by the top linear motor 602. The top linear motor 602 converts the rotational motion into linear displacement through the top lead screw 603, driving the top adjustment plate 601 to move smoothly in the horizontal direction, realizing stepless control of the opening degree of the pressure regulating orifice 505a. The middle adjustment plate 604 covers the flow regulating orifice. In area 505b, there is also a through hole that matches the flow regulation orifice 505b. By changing the alignment between the through hole and the orifice, the flow intensity in the middle of the venting chamber 503 can be dynamically adjusted, thereby affecting the magnitude and stability of the horizontal closing thrust. The middle adjustment plate 604 is driven by the middle linear motor 605. The middle linear motor 605 provides precise linear thrust through the middle lead screw 606 to ensure a smooth adjustment process and rapid response. The middle linear motor 605 and the top linear motor 602 are located on opposite sides. The bottom adjustment plate 607 covers the area where the large venting orifice 505c is located. Its through holes correspond one-to-one with the large venting orifice 505c. In the high flow or late stage of blockage, the bottom pressure can be quickly released by adjusting the position of the bottom adjustment plate 607 to prevent structural overload. The bottom adjustment plate 607 is driven by the bottom linear motor 608. The bottom linear motor 608 achieves precise displacement control through the bottom lead screw 609 to ensure the flow response capability under high flow conditions.

[0149] Overall, the segmented flow control board 600 divides the controllable discharge port 505 into three independent control zones: upper, middle, and lower. Each zone consists of a closed-loop drive unit composed of a dedicated regulating plate, linear motor, and lead screw. This segmented design allows the device to optimize the discharge characteristics of each height zone according to the real-time hydrological conditions of the breach: reducing the opening in the initial stage of closure to enhance the hydraulic drive effect, and increasing the opening in the later stage of closure to ensure structural safety. The three sets of regulating mechanisms work together to maintain a reasonable distribution of the pressure gradient in the discharge chamber 503, thereby supporting the entire sealing system to achieve the intelligent operation logic of "hydraulic drive - dynamic balance - adaptive locking".

[0150] Specifically, the docking component 400 further includes:

[0151] U-shaped airbag groove 405 is provided at the docking edge of the movable water-blocking plate 200;

[0152] High-pressure airbag 406 is pre-embedded in U-shaped airbag groove 405;

[0153] Miniature air pump 407 is connected to high-pressure airbag 406 via an air circuit;

[0154] Based on the aforementioned mechanical locking structure, the docking assembly 400 further integrates a flexible sealing enhancement mechanism to improve the overall sealing performance of the two movable water-blocking plates 200 after docking. This mechanism consists of a U-shaped airbag groove 405, a high-pressure airbag 406, and a micro air pump 407. Its main function is to achieve adaptive filling and watertight sealing of the docking gap through inflation after mechanical locking. The U-shaped airbag groove 405 is located at the docking edge of the movable water-blocking plate 200, and its cross-section is U-shaped, arranged along the contour of the entire docking surface. It serves as the high-pressure airbag 406. 6. The groove provides an embedding space. This groove not only protects the internal airbag from direct erosion by external water flow or mechanical damage, but also constrains its expansion direction, ensuring that the airbag extends mainly towards the inside of the joint after inflation, thereby effectively sealing any possible gaps. The high-pressure airbag 406 is pre-embedded inside the U-shaped airbag groove 405 and is made of a highly elastic, water-pressure-resistant flexible material. In the uninflated state, the high-pressure airbag 406 fits tightly inside the groove and does not affect the normal closing movement of the movable water-blocking plate 200. After the mechanical docking of the two sides is completed, the high-pressure airbag 406... Rapid inflation fills the tiny gaps between the mating surfaces caused by manufacturing tolerances, installation deviations, or water flow disturbances, forming a continuous, dense, flexible sealing layer that significantly improves the impermeability of the sealing body. A miniature air pump 407 is connected to the high-pressure airbag 406 via an air passage, serving as the air supply power source for the airbag. This compact air pump can be integrated into the sealing unit, has a fast response time, and can automatically or remotely start after mating and locking to inject compressed air into the high-pressure airbag 406. Simultaneously, the miniature air pump 407 can also work with a pressure control unit during operation... Maintaining appropriate air pressure within the airbag ensures both sealing effectiveness and prevents structural deformation or airbag rupture due to overpressure. In summary, the U-shaped airbag groove 405, high-pressure airbag 406, and micro air pump 407 together constitute the active sealing subsystem in the docking assembly 400. Based on mechanical locking, this system compensates for microscopic gaps that are difficult to completely eliminate by rigid structures through a flexible inflation sealing method, effectively preventing leakage of water from the docking interface and significantly enhancing the overall water-stopping reliability and environmental adaptability of the sealing device. It is an important guarantee for achieving efficient and long-lasting sealing.

[0155] Specifically, a gravity locking assembly 700 is provided between the dam bonding plate 101 and the H-shaped base 102, the gravity locking assembly 700 comprising:

[0156] H-shaped positioning groove 701, closed at the top and gradually widening at the bottom;

[0157] Pressure sensor 702 is located on the top wall inside H-shaped positioning groove 701;

[0158] The wedge-shaped locking tongue 703 is driven by the electric telescopic rod 704;

[0159] Wedge-shaped opening 705 is provided on the side wall of H-shaped base 102;

[0160] The gravity locking component 700 is positioned between the embankment bonding plate 101 and the H-shaped base 102. It is a mechanism for automatically positioning and locking the sealing unit during installation. This component combines gravity triggering with active locking to ensure that the embankment bonding plate 101 is stably and firmly fixed to the H-shaped base 102 after hoisting, providing reliable bottom support for the entire sealing device. The H-shaped positioning groove 701 is located at the bottom of the embankment bonding plate 101. It has an H-shaped cross-section, a closed top, and a gradually expanding bottom. This groove is used to form a nested fit with the H-shaped base 102 during hoisting. In the process, the dam bonding plate 101 slides into the H-shaped base 102 under its own weight. The gradually expanding structure at the bottom serves as a guide and tolerance, facilitating initial alignment. As it falls into place, the closed top wall of the H-shaped positioning groove 701 contacts the top of the H-shaped base 102, forming a pressure-bearing interface, providing a basis for subsequent locking actions. The pressure sensor 702 is installed on the inner top wall of the H-shaped positioning groove 701 to sense the contact pressure between the dam bonding plate 101 and the H-shaped base 102 in real time. When the breach water flow impacts the discharge cavity 503 and generates a vertical component force, or when the weight of the device is completely transferred to the H-shaped base 102, the pressure sensor 702 can detect this. Whether the pressure reaches a preset threshold determines whether the structure is fully in place and can bear the effective load, providing a trigger signal for subsequent automatic locking. The wedge-shaped locking tongue 703 is driven by an electric telescopic rod 704, which can move horizontally. After receiving the positioning signal from the pressure sensor 702, the electric telescopic rod 704 is activated, pushing the wedge-shaped locking tongue 703 outward. The locking tongue has wedge-shaped geometric features, and its inclined surface design allows it to automatically compensate for small assembly gaps during insertion and form a self-locking effect after being fully embedded, preventing loosening due to vibration or water flow impact. The wedge-shaped opening 705 is opened on the side wall of the H-shaped base 102. The wedge-shaped locking tongue 703 is positioned corresponding to the wedge-shaped locking tongue 703. After the dam bonding plate 101 is completely placed into the H-shaped base 102, the wedge-shaped opening 705 is directly opposite the extension path of the wedge-shaped locking tongue 703. The wedge-shaped locking tongue 703 is inserted into the wedge-shaped opening 705 under the drive of the electric telescopic rod 704, realizing the radial mechanical locking between the dam bonding plate 101 and the H-shaped base 102, completely restricting the relative displacement between the two in the horizontal and vertical directions. This component organically combines gravity self-positioning, sensor feedback and active execution to ensure that the sealing unit can still achieve fast, reliable and automated bottom fixing under complex hydrological conditions, laying the foundation for the stability of the entire sealing system.

[0161] Specifically, the L-shaped water-blocking plate 201 is provided with an active pile stabilizing mechanism 800 on its side wall, the active pile stabilizing mechanism 800 including:

[0162] Hydraulic expansion pile 801 is fixed to the side wall of L-shaped water-blocking plate 201;

[0163] The drive motor 802 is mounted on the telescopic end of the hydraulic telescopic pile 801 via a lifting seat;

[0164] Spiral anchor plate 803 is fixed to the telescopic end of drive motor 802;

[0165] The active stabilizing pile mechanism 800 is installed on the side wall of the L-shaped water-blocking plate 201. It is an auxiliary structure used to enhance the overall stability of the sealing device under complex geological conditions of the riverbed. Its main function is to actively implant the fixing unit deep into the riverbed after the sealing body is closed and locked. Through mechanical interlocking and soil reaction force, it achieves anti-overturning and anti-slip reinforcement of the entire sealing unit. The hydraulic telescopic pile 801 is fixedly installed on the side wall of the L-shaped water-blocking plate 201, serving as the support and propulsion body of the active stabilizing pile mechanism 800. It is equipped with a hydraulic drive system, which can extend vertically downwards when needed to send the upper drive component to the riverbed surface or penetrate the surface silt, providing the necessary downward pressure and positioning height for subsequent fixing operations. The drive motor 802 is installed on the telescopic end of the hydraulic telescopic pile 801 through a lifting seat. The lifting seat moves synchronously with the hydraulic telescopic pile 801, enabling the drive motor 802 to be accurately delivered to the target working depth. The main function of the drive motor 802 is to provide rotation. The motor has a downward-facing output shaft that drives the lower spiral anchor plate 803 to perform drilling operations. This motor has sufficient torque output capacity to adapt to riverbed soil layers with different densities. The spiral anchor plate 803 is fixedly connected to the telescopic end of the drive motor 802. Its shape is spiral, with continuous cutting edges and lead structure. After the drive motor 802 is started, the spiral anchor plate 803 rotates at high speed and, combined with the downward thrust applied by the hydraulic telescopic pile 801, can effectively cut into the riverbed soil to achieve self-drilling fixation. As the depth of insertion increases, the spiral anchor plate 803 forms a firm mechanical engagement with the surrounding soil, significantly improving the pull-out resistance and lateral stability of the sealing structure. It is especially suitable for easily disturbed or low-bearing-capacity strata such as silt and sand. This mechanism is activated in the later stage of sealing, effectively making up for the shortcomings of traditional passive support methods in soft soil environments, and greatly improving the service reliability and long-term stability of the entire breach sealing device under high flow velocity, deep water or adverse geological conditions.

[0166] A hydraulically coupled self-locking breach sealing method includes the following steps:

[0167] S1, Embedded base and hoisting positioning

[0168] H-shaped bases 102 are pre-embedded on the backwater side of the dikes on both sides of the breach, and the dike bonding plate 101 is hoisted onto the H-shaped bases 102 using the hoisting head 103.

[0169] S2, gravity-triggered self-locking

[0170] Release the dam bonding plate 101 and let it slide into the H-shaped base 102 along the bottom of the H-shaped positioning groove 701 using its own weight;

[0171] The breach water flow impacts the discharge cavity 503, and the vertical component force drives the two dam bonding plates 101 to move downward and fit into the H-shaped base 102;

[0172] When the pressure sensor 702 detects the threshold pressure, the electric telescopic rod 704 drives the wedge-shaped locking tongue 703 to insert into the wedge-shaped opening 705 and lock radially.

[0173] S3, hydraulically driven closure

[0174] The hydraulic cylinder 304 is activated to push the movable water-blocking plate 200 to initially close;

[0175] The water flow from the breach impacts the discharge chamber 503, and the horizontal component force drives the L-shaped water-blocking plates 201 on both sides to automatically close towards the center of the breach.

[0176] S4, Dynamic pressure relief control

[0177] Real-time monitoring of the breach flow rate, and adjustment of the controllable discharge port 505 via the segmented flow control board 600:

[0178] Initial closing phase: Reduce the opening of the controllable vent 505 and increase the jet velocity to enhance the horizontal and vertical components of the force;

[0179] In the later stage of closure: increase the opening of the controllable vent 505 to reduce the jet velocity and prevent structural overload;

[0180] S5, docking lock and seal

[0181] When the two L-shaped water-blocking plates 201 come into contact:

[0182] The locking pin 401 is inserted into the locking hole 402, and the multi-stage locking ratchet 403 engages the locking groove under the action of the telescopic spring 404.

[0183] The miniature air pump 407 inflates the high-pressure airbag 406, expanding and filling the docking gap;

[0184] S6, Riverbed Fixation Reinforcement

[0185] Activate the active pile stabilizing mechanism 800:

[0186] The hydraulic expansion pile 801 extends downwards and penetrates the silt layer;

[0187] The drive motor 802 drives the spiral anchor plate 803 to rotate and lock the riverbed.

[0188] Working principle: This device is mainly applicable to emergency rescue scenarios in dike engineering where breaches are discovered in a timely manner, the breach scale is small, and the main structure of the dike has not completely collapsed. Under such conditions, the backwater side of the dike still has sufficient bearing capacity and installation space, providing the basic conditions for rapid deployment of the sealing device.

[0189] During the routine flood prevention preparation phase, H-shaped bases can be pre-buried at certain intervals along key dike sections as standardized emergency interfaces. In the event of localized seepage or small-scale breaches, prefabricated sealing units can be quickly deployed and symmetrically arranged on both sides of the breach, and fixed to the two H-shaped bases closest to the breach. This eliminates the need for on-site excavation or complex foundation construction, significantly shortening the response time.

[0190] The hoisting and installation of the device can be completed by unmanned equipment such as drones. Drones precisely lift the sealing unit to the predetermined position and release it, allowing it to slide into the H-shaped base under its own weight. The entire process does not require rescue personnel to approach the dangerous breach area, significantly reducing operational risks. At the same time, since the H-shaped base is pre-embedded, the sealing unit itself integrates gravity locking and hydraulic self-locking functions, eliminating the need for high-risk operations such as manual bolt tightening, welding, or pile driving, greatly improving the safety and efficiency of emergency operations.

[0191] In practical applications, this device can not only quickly seal existing breaches and prevent further erosion by water flow, but also provide temporary reinforcement by applying lateral support and bottom compaction to sections of the embankment that have not completely collapsed. This effectively inhibits the continued expansion of the breach and buys valuable time for subsequent permanent repairs. Therefore, this device has both "sealing" and "reinforcement" functions, and is particularly suitable for emergency rescue scenarios in small and medium-sized rivers, urban flood control dikes, and reservoir cofferdams, where response speed and operational safety are critical.

[0192] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0193] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulically coupled self-locking breach sealing device, characterized in that, include: The sealing units are mirror-symmetrical and deployed on the backwater side of the dikes on both sides of the breach. Each sealing unit includes: The dam bonding plate (101) is fixed by a pre-embedded H-shaped base (102), and a hoisting head (103) is provided on the top for hoisting. Hydraulic machinery coordinated system: The movable water-blocking plate (200) consists of an L-shaped water-blocking plate (201) and a bottom water-blocking plate (202) fixed at the lower end of the L-shaped water-blocking plate (201), and slides along the dam bonding plate (101) via a movable component (300); The docking assembly (400) locks the structures on both sides after the movable water-blocking plate (200) is closed; A flow diversion assembly (500), fixed inside the movable water-blocking plate (200), includes: The vertically inclined guide vane (501b) forms an acute angle with the horizontal plane; The water flow anti-scouring plate (502) is arranged parallel to the vertical inclined guide plate (501b) at intervals, together forming the discharge cavity (503). A controllable discharge port (505) is provided on a vertically inclined guide plate (501b), and the controllable discharge port (505) is provided with a segmented flow control plate (600). The outlet (506) is located on the backwater side of the discharge cavity (503); When the water flow from the breach impacts the discharge chamber (503) at an angle downwards, it generates a two-dimensional force: The horizontal force drives the two movable water-blocking plates (200) on both sides to close towards the center of the breach; The vertical force pushes the dam bonding plate (101) to press the H-shaped base (102) tightly; By adjusting the opening of the controllable vent (505), a gradient pressure difference is formed in the vent cavity (503), maintaining the dynamic balance between the closing thrust and the breach flow.

2. The hydraulically coupled self-locking breach sealing device according to claim 1, characterized in that: The moving component (300) includes: Trapezoidal slider (301) is symmetrically fixed to the side wall of L-shaped water-blocking plate (201) and slidably embedded in the trapezoidal groove (302) of dam bonding plate (101); The guide rod (303) is fixed in the trapezoidal groove (302) and passes through the trapezoidal slider (301); The hydraulic cylinder (304) has its cylinder body fixed to the side wall of the dam bonding plate (101) and its telescopic end fixed to the side wall of the L-shaped water-blocking plate (201).

3. The hydraulically coupled self-locking breach sealing device according to claim 2, characterized in that: The docking assembly (400) includes: Locking pin (401) is fixed to the side wall of a movable water-blocking plate (200) on one side; A locking socket (402) is located on the side wall of the movable water-blocking plate (200) on the other side; A multi-stage locking ratchet (403) is movably located in a movable slot at the top of the locking socket (402); The telescopic spring (404) is fixed to the top of the movable slot and drives the multi-stage locking ratchet (403) to engage with the locking slot of the locking pin (401); U-shaped airbag groove (405) is provided at the edge of the movable water-blocking plate (200); High-pressure airbag (406) is pre-embedded in U-shaped airbag groove (405); A miniature air pump (407) is connected to a high-pressure airbag (406) via an air circuit.

4. The hydraulically coupled self-locking breach sealing device according to claim 3, characterized in that: The flow diversion assembly (500) further includes: The transverse inclined plate (501a) extends downwards and inwards; A horizontal grille (504) is located at the junction of a transverse inclined plate (501a) and a vertical inclined guide plate (501b); The vertically inclined guide plate (501b) and the bottom water-blocking plate (202) form an acute angle; The horizontal inclined plate (501a), the vertical inclined guide plate (501b), the bottom water blocking plate (202), the water flow anti-scouring plate (502) and the sealing back plate (507) together form the discharge cavity (503).

5. The hydraulically coupled self-locking breach sealing device according to claim 4, characterized in that: The controllable discharge port (505) is a gradient circular hole array, including: A pressure regulating orifice (505a) is located at the top of the vertically inclined guide plate (501b); The flow regulating orifice (505b) is located in the middle of the vertically inclined guide plate (501b); The large discharge hole (505c) is located at the bottom of the vertically inclined guide plate (501b).

6. The hydraulically coupled self-locking breach sealing device according to claim 5, characterized in that: The segmented flow control board (600) includes: The top adjustment plate (601) movably covers the area of ​​the pressure regulating hole (505a) and is provided with a through hole corresponding to the pressure regulating hole (505a); A top linear motor (602) drives the top adjusting plate (601) to translate via a top lead screw (603); The central regulating plate (604) covers the area of ​​the flow regulating central hole (505b) and is provided with corresponding through holes; The central linear motor (605) drives the central adjusting plate (604) to translate via the central lead screw (606); The bottom adjusting plate (607) can be moved to cover the area of ​​the large drain hole (505c) and is provided with corresponding through holes; The bottom linear motor (608) drives the bottom adjusting plate (607) to move horizontally via the bottom lead screw (609).

7. A hydraulically coupled self-locking breach sealing device according to claim 6, characterized in that: A gravity locking assembly (700) is provided between the dam bonding plate (101) and the H-shaped base (102), the gravity locking assembly (700) comprising: H-shaped positioning groove (701), closed at the top and gradually widening at the bottom; A pressure sensor (702) is located on the top wall inside the H-shaped positioning groove (701); The wedge-shaped locking tongue (703) is driven by an electric telescopic rod (704); A wedge-shaped opening (705) is provided on the side wall of the H-shaped base (102).

8. The hydraulically coupled self-locking breach sealing device according to claim 7, characterized in that: The L-shaped water-blocking plate (201) is provided with an active pile stabilizing mechanism (800) on its side wall. The active pile stabilizing mechanism (800) includes: Hydraulic expansion pile (801) is fixed to the side wall of L-shaped water-blocking plate (201); The drive motor (802) is located at the telescopic end of the hydraulic telescopic pile (801) via a lifting seat; The spiral anchor plate (803) is fixed to the telescopic end of the drive motor (802).

9. The sealing method of the hydraulically coupled self-locking breach sealing device according to claim 8, characterized in that, Includes the following steps: S1, Embedded base and hoisting positioning H-shaped bases (102) are pre-embedded on the backwater side of the dikes on both sides of the breach. The dike bonding plate (101) is hoisted onto the H-shaped bases (102) using a hoisting head (103). S2, gravity-triggered self-locking Release the dam bonding plate (101) and let it slide into the H-shaped base (102) along the bottom of the H-shaped positioning groove (701) using its own weight; The breach water flow impacts the discharge cavity (503), and through the vertical component force, drives the two dam bonding plates (101) to move downward and fit into the H-shaped base (102); When the pressure sensor (702) detects the threshold pressure, the electric telescopic rod (704) drives the wedge-shaped locking tongue (703) to insert into the wedge-shaped opening (705) and radially lock. S3, hydraulically driven closure The hydraulic cylinder (304) is activated to push the movable water-blocking plate (200) to initially close; The water flow from the breach impacts the discharge chamber (503), which drives the L-shaped water-blocking plates (201) on both sides to automatically close towards the center of the breach through the horizontal component force; S4, Dynamic pressure relief control Real-time monitoring of the breach flow rate, and adjustment of the opening of the controllable discharge port (505) via the segmented flow control plate (600): Initial closing phase: Reduce the opening of the controllable vent (505) and increase the jet velocity to enhance the horizontal and vertical components of the force; In the later stage of closure: increase the opening of the controllable discharge port (505) to reduce the jet velocity and prevent structural overload; S5, docking lock and seal When the two L-shaped water-blocking plates (201) come into contact: The locking pin (401) is inserted into the locking hole (402), and the multi-stage locking ratchet (403) engages the locking groove under the action of the telescopic spring (404); A miniature air pump (407) inflates the high-pressure airbag (406) to fill the mating gap; S6, Riverbed Fixation Reinforcement Activate the active pile stabilizing mechanism (800): The hydraulic telescopic pile (801) extends downwards and penetrates the silt layer; The drive motor (802) drives the spiral anchor plate (803) to rotate and lock the riverbed.

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