A seepage prevention and reinforcement device for water conservancy and reservoirs

Abstract

This invention relates to the field of water conservancy engineering technology, specifically to a seepage prevention and reinforcement device for water conservancy reservoirs. The device includes a gate chamber and a lifting system, and further includes: a gate frame disposed within the gate chamber, with a gate slidably mounted within the gate frame and used in conjunction with the lifting system at its bottom; both sides of the bottom end of the gate are inclined surfaces; and two rubber base plates, both slidably mounted within the gate frame. This seepage prevention and reinforcement device for water conservancy reservoirs utilizes the potential energy of the gate's descent to convert mechanical energy into air pressure energy through a pressure-bearing chamber, driving the arc-shaped rubber base plates to slide along a limiting groove, tightly fitting the inclined surfaces at the bottom end of the gate to form an adaptive pressure-boosting seal. The deeper the gate descends, the greater the sealing pressure, effectively addressing high-pressure water leakage. A return spring ensures the system automatically resets after the gate is opened, requiring no additional power, significantly improving sealing reliability and operational efficiency.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a seepage prevention and reinforcement device for water conservancy reservoirs. Background Technology

[0002] A reservoir is an artificial body of water formed in a river, valley, or low-lying area by dams, dikes, sluice gates, and other engineering projects. It is used for runoff regulation and to alter the natural distribution of water resources. Reservoirs typically integrate flood control, water supply, irrigation, and power generation functions, and are crucial infrastructure for ensuring food and water security. However, seepage is one of the most common problems encountered during the long-term operation of reservoirs. Reservoir seepage not only leads to significant water loss and affects the reservoir's water storage efficiency, but can also cause seepage damage to the dam foundation and excessive uplift pressure. If not investigated and addressed promptly, seepage will gradually erode the dam structure, leading to major safety accidents such as piping, landslides, and even dam failure. Therefore, reservoir seepage prevention and reinforcement are key to ensuring the safe and stable operation of reservoirs. As a crucial facility for controlling water flow, the sealing performance of sluice gates directly affects the safe operation of water conservancy facilities. However, in actual use, we have found that gate leakage is a common problem. The causes of gate leakage are multifaceted. As the operating time increases and the number of operations increases, the gate's water-stopping rubber will gradually wear out and fail. Factors such as gate structure aging, impact from floating objects in floods, and frequent opening and closing can also cause the gate to not close tightly. Gate leakage not only wastes water resources, but also easily causes gate vibration, cavitation and wear of embedded parts, and even endangers the safety of the gate and other hydraulic structures. Therefore, we propose a seepage prevention and reinforcement device for water conservancy reservoirs. Summary of the Invention

[0003] One of the technical problems this application aims to solve is: how to address the leakage problem in existing reservoirs caused by improper closure or wear and aging of gate structures, thereby improving the overall seepage prevention performance and operational safety of the reservoirs.

[0004] To address the aforementioned technical problems, this application provides a seepage prevention and reinforcement device for water conservancy reservoirs, including a gate chamber and a lifting system, and further comprising: A door frame is installed inside the gate chamber, and a gate is slidably installed inside the door frame. The gate is installed at the bottom of the lifting system and works in conjunction with it. Both sides of the bottom end of the gate are sloped. Two rubber base plates are provided, and both rubber base plates are slidably disposed within the door frame. Four rubber side plates are slidably disposed within the door frame, and the four rubber side plates are arranged in pairs and located on both sides of the gate. A pneumatic assembly, located below the gate, is used to drive the two rubber base plates to move and squeeze the bottom of the gate, thereby sealing the gap between the bottom of the gate and the gate frame. The traction assembly is provided in two sets, and each set of the traction assembly is used in conjunction with a corresponding set of rubber side plates to drive the two corresponding rubber side plates to move relative to each other and clamp the side of the gate, thereby sealing the gap between the side of the gate and the gate frame.

[0005] In some embodiments, two guide grooves are provided in the door frame, and the two guide grooves are respectively located on both sides of the gate. The gate is slidably disposed in the door frame through the two guide grooves. An embedding groove is provided in the door frame, and the embedding groove is located below the gate and cooperates with the bottom end of the gate. The embedding groove communicates with the two guide grooves.

[0006] In some embodiments, the pneumatic assembly includes a pressure-bearing member disposed within the gate frame for receiving the weight transmitted by the gate and the power generated when it descends, converting it into driving force for the two rubber base plates. A limit member is disposed within the gate frame for restricting the movement trajectory of the two rubber base plates, ensuring that the two rubber base plates can move along a predetermined trajectory. A pressure-replenishing member is also disposed within the gate frame for supplementing the air pressure required when the two rubber base plates pop out, so as to maintain continuous compression and sealing of the bottom end of the gate.

[0007] In some embodiments, the pressure-bearing member includes a pressure-bearing cavity formed within the door frame, and the pressure-bearing cavity is located below the embedding groove and communicates with the embedding groove. A pressure-bearing plate is slidably disposed within the pressure-bearing cavity. The top of the pressure-bearing plate is used in conjunction with the bottom of the gate. A plurality of return springs are equidistantly disposed at the bottom of the pressure-bearing plate, and the bottom ends of the plurality of return springs are all fixedly connected to the bottom of the pressure-bearing cavity.

[0008] In some embodiments, the limiting member includes two limiting grooves formed within the door frame, both of which are arc-shaped and located on opposite sides of the pressure-bearing cavity. The bottom ends of both limiting grooves communicate with the pressure-bearing cavity and are located at the bottom of the pressure-bearing cavity, while their top ends extend to two inclined surfaces at the bottom of the embedding groove and communicate with the embedding groove. A protrusion is provided in the middle section of each of the two limiting grooves. Two rubber base plates are slidably disposed in the corresponding limiting grooves and are located above the corresponding protrusions. Both rubber base plates are arc-shaped, and their curvature is adapted to the inner wall of the limiting groove.

[0009] In some embodiments, the pressure-replenishing component includes a pressure-replenishing groove formed in the door frame. The pressure-replenishing groove is located on the side of the door frame away from the reservoir and communicates with one of the two limiting grooves. A one-way valve is provided in the pressure-replenishing groove. The air inlet of the one-way valve is connected to an external air source, and the air outlet is directed toward the pressure-replenishing groove that communicates with it.

[0010] In some embodiments, the traction assembly includes a synchronizing element disposed on one side of the gate frame, which transmits the power generated when the gate descends, driving the two rubber side plates to move synchronously towards each other, thereby achieving clamping and sealing of the gate side. A transmission element is disposed inside the gate frame to transmit power to the corresponding two rubber side plates, driving the two rubber side plates to clamp in the center or separate in the opposite direction.

[0011] In some embodiments, the synchronizing element includes a synchronizing groove formed in the gate frame, the synchronizing groove being located on one side of the gate and communicating with an adjacent guide groove, a synchronizing plate being slidably disposed in the synchronizing groove, the synchronizing plate being L-shaped, grooves being formed at both ends of the top of the pressure plate, the bottom of the synchronizing plate being fitted with the corresponding groove and being horizontal with the top of the pressure plate.

[0012] In some embodiments, the transmission component includes two sliding grooves formed in the door frame, and two rubber side plates in each group are slidably disposed in the corresponding sliding grooves. Multiple transmission plates are rotatably disposed on both sides of the synchronization plate via a rotating shaft. Both rubber side plates are C-shaped, with one end of them fitting against the gate and the other end rotatably connected to the corresponding transmission plate via a rotating shaft.

[0013] In some embodiments, an interceptor is provided on the side of the gate frame away from the pressure replenishment groove to guide water flow and intercept stones and sand. The interceptor includes multiple support plates provided on one side of the gate frame. Bolts are provided on each of the multiple support plates. The multiple support plates are movably mounted on the gate frame by corresponding bolts. An arc-shaped plate is provided on the top of the multiple support plates, and the concave surface of the arc-shaped plate faces the water-facing side of the gate.

[0014] The present invention has at least the following beneficial effects: 1. This device utilizes the potential energy of the gate's descent to convert mechanical energy into pneumatic energy through the pressure chamber, driving the arc-shaped rubber base plate to slide along the limiting groove and tightly fit the inclined surface at the bottom of the gate, forming an adaptive pressure-boosting seal. The deeper the gate descends, the greater the sealing pressure, effectively coping with high-pressure water leakage. The reset spring ensures that the system automatically resets after the gate is opened, requiring no additional power, significantly improving sealing reliability and operating efficiency.

[0015] 2. The traction component synchronously utilizes the downward pressing action of the gate, and is linked with the transmission plate through the synchronization plate to make the rubber side plates on both sides clamp the side of the gate in the center, so that the force is evenly distributed and avoids deformation or failure on one side. This structure does not require hydraulic or electric drive and can still work reliably under extreme working conditions such as power failure. At the same time, it achieves double-sided sealing of the gate, which not only prevents one-way leakage, but also resists the impact of reverse water pressure, greatly enhancing the overall seepage prevention safety.

[0016] 3. The pressure replenishment tank, in conjunction with the one-way valve, can replenish air pressure online, maintaining the long-term stability of the sealing system. Moreover, the gate does not need to be disassembled during maintenance, reducing operation and maintenance costs and downtime risks. The arc-shaped interception plate set on the water-facing side guides the mud, sand and gravel downwards using the flow guiding effect, preventing impurities from accumulating on the sealing contact surface, reducing wear and jamming, and extending the life of the device. Multiple auxiliary designs work together to ensure the long-term reliable operation of the system in complex water environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the door frame structure of the present invention; Figure 3 This is an exploded view of the interceptor structure of the present invention; Figure 4 This is a schematic diagram of the guide groove structure of the present invention; Figure 5 This is a schematic diagram of the pressure-bearing component structure of the present invention; Figure 6 This is a schematic diagram of the rubber base plate structure of the present invention; Figure 7 This is a side sectional view of the pressure-repairing component structure of the present invention; Figure 8 This is a partial cross-sectional schematic diagram of the synchronization component structure of the present invention; Figure 9 This is a schematic diagram of the transmission component of the present invention; Figure 10 This is a schematic diagram of the groove structure of the present invention.

[0018] In the diagram: 1. Gate chamber; 2. Lifting system; 3. Gate frame; 4. Gate; 5. Rubber base plate; 6. Rubber side plate; 7. Pneumatic assembly; 8. Traction assembly; 9. Guide groove; 10. Embedded groove; 11. Pressure bearing component; 111. Pressure bearing cavity; 112. Pressure bearing plate; 113. Return spring; 12. Limiting component; 121. Limiting groove; 122. Protrusion; 13. Pressure replenishing component; 131. Pressure replenishing groove; 132. One-way valve; 14. Synchronizing component; 141. Synchronizing groove; 142. Synchronizing plate; 143. Groove; 15. Transmission component; 151. Sliding groove; 152. Transmission plate; 16. Interception component; 161. Support plate; 162. Bolt; 163. Arc plate. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figure 1-10 The present invention provides a technical solution: a seepage prevention and reinforcement device for water conservancy reservoirs, comprising a gate chamber 1 and a lifting system 2, and further comprising: A door frame 3 is set inside the gate chamber 1. A gate 4 is slidably installed inside the door frame 3. The gate 4 is set at the bottom of the lifting system 2 and works in conjunction with it. Both sides of the bottom end of the gate 4 are sloped. There are two rubber base plates 5, and both rubber base plates 5 are slidably installed inside the door frame 3. Four rubber side plates 6 are slidably installed inside the door frame 3. The four rubber side plates 6 are arranged in pairs and are located on both sides of the gate 4 respectively. Pneumatic component 7, located below gate 4, is used to drive two rubber base plates 5 to move and squeeze the bottom of gate 4, thereby sealing the gap between the bottom of gate 4 and gate frame 3. The traction assembly 8 is provided in two sets, and each traction assembly 8 is used in conjunction with a corresponding set of rubber side plates 6 to drive the two corresponding rubber side plates 6 to move relative to each other and clamp the side of the gate 4, thereby sealing the gap between the side of the gate 4 and the gate frame 3.

[0021] Two guide grooves 9 are provided in the door frame 3, and the two guide grooves 9 are located on both sides of the gate 4. The gate 4 is slidably installed in the door frame 3 through the two guide grooves 9. An embedding groove 10 is provided in the door frame 3, and the embedding groove 10 is located below the gate 4 and is used in conjunction with the bottom end of the gate 4. The embedding groove 10 is connected to the two guide grooves 9. When staff need to open or close the gate, the lifting system 2 will drive the gate 4 to move upward or slide downward. At this time, the two guide grooves 9 on the gate frame 3 can restrict the movement trajectory of the gate 4 until the gate 4 is raised or lowered to the appropriate position. The embedded groove 10 in the gate frame 3 can cooperate with the slope at the bottom of the gate 4 so that the bottom of the gate 4 fits tightly with the embedded groove 10. The wedge effect generated by the slope structure enhances the sealing effect at the bottom and prevents water from leaking from the bottom of the gate 4.

[0022] The pneumatic assembly 7 includes a pressure-bearing member 11 installed in the gate frame 3, which receives the weight transmitted by the gate 4 and the power generated when it descends, and converts it into the driving force of the two rubber base plates 5. A limit member 12 is installed in the gate frame 3 to limit the movement trajectory of the two rubber base plates 5, ensuring that the two rubber base plates 5 can move along a predetermined trajectory. A pressure-replenishing member 13 is also installed in the gate frame 3 to replenish the air pressure required when the two rubber base plates 5 pop out, so as to maintain the continuous compression and sealing of the bottom end of the gate 4.

[0023] The pressure-bearing component 11 includes a pressure-bearing cavity 111 opened in the door frame 3, and the pressure-bearing cavity 111 is located below the embedding groove 10 and communicates with the embedding groove 10. A pressure-bearing plate 112 is slidably arranged in the pressure-bearing cavity 111. The top of the pressure-bearing plate 112 is used in conjunction with the bottom of the gate 4. A plurality of return springs 113 are equidistantly arranged at the bottom of the pressure-bearing plate 112, and the bottom ends of the plurality of return springs 113 are fixedly connected to the bottom of the pressure-bearing cavity 111. When the gate 4 needs to close and moves downward into the embedded groove 10, as the gate 4 continues to operate, the bottom end of the gate 4 contacts the top of the pressure plate 112 and presses the pressure plate 112 downward, causing it to overcome the elastic force of the return spring 113 and move downward, thereby compressing the gas in the pressure chamber 111 and converting mechanical energy into gas pressure energy, providing a power source for subsequent sealing actions. The return spring 113, which is set at the bottom of the pressure plate 112, will push the pressure plate 112 to reset after the gate 4 moves upward and releases the pressure on the pressure plate 112, so that the pressure chamber 111 returns to its initial state and prepares for the next sealing action.

[0024] The limiting member 12 includes two limiting grooves 121 formed in the door frame 3. Both limiting grooves 121 are arc-shaped and located on both sides of the pressure-bearing cavity 111. The bottom ends of both limiting grooves 121 are connected to the pressure-bearing cavity 111 and located at the bottom of the pressure-bearing cavity 111. The top ends of both grooves 121 extend to the two inclined surfaces at the bottom of the embedding groove 10 and are connected to the embedding groove 10. The middle section of both limiting grooves 121 is provided with a protrusion 122. Two rubber base plates 5 are slidably disposed in the corresponding limiting grooves 121 and located above the corresponding protrusions 122. Both rubber base plates 5 are arc-shaped and their curvature is adapted to the inner wall of the limiting groove 121. When the pressure plate 112 moves downward to compress the gas, the compressed gas enters the two limiting grooves 121 through the pressure chamber 111, thereby pushing the two rubber base plates 5 to slide along the limiting grooves 121. This causes the two rubber base plates 5 to slide along the limiting grooves 121 and press against the two inclined surfaces at the bottom of the gate 4 located in the embedded groove 10. The potential energy generated by the downward movement of the gate 4 is converted into air pressure energy, causing the two rubber base plates 5 to tightly adhere to the inclined surfaces at the bottom of the gate 4, forming a high-pressure sealing zone. This effectively blocks water leakage. Through the compression of the two arc-shaped rubber base plates 5 against the two inclined surfaces at the bottom of the gate 4, both sides of the gate 4 are sealed, which not only improves the reliability of the seal but also simultaneously isolates the water flow on both sides of the gate 4. The dual protection further enhances the sealing stability and safety of the gate 4 under high-pressure water flow. In addition, the deeper the gate 4 descends, the greater the air pressure applied to the rubber base plate 5, and the higher the sealing fit, thereby achieving adaptive pressure boosting sealing. Even if the gas in the pressure chamber 111 is insufficient due to minor leakage, the gate 4's own gravity and water pressure can still maintain sufficient sealing specific pressure, ensuring absolute reliability of sealing performance under extreme working conditions. The two protrusions 122 can limit the reset stroke of the rubber base plate 5. Even if the gas in the pressure chamber 111 leaks, the protrusions 122 can prevent the rubber base plate 5 from excessively resetting and sliding to the bottom of the pressure chamber 111, ensuring that the rubber base plate 5 is always in the effective working range.

[0025] The pressure-replenishing component 13 includes a pressure-replenishing groove 131 opened in the door frame 3. The pressure-replenishing groove 131 is located on the side of the door frame 3 away from the reservoir and communicates with one of the two limiting grooves 121. A one-way valve 132 is provided in the pressure-replenishing groove 131. The air inlet of the one-way valve 132 is connected to an external air source, and the air outlet is directed toward the pressure-replenishing groove 131 that communicates with it. When the gas pressure in the pressure chamber 111 is low due to leakage, the operator can inject appropriate gas into the pressure chamber 111 through the pressure replenishing groove 131 to replenish the gas pressure in the pressure chamber 111, ensuring that the sealing system is always in the best working condition. Under the action of the one-way valve 132, the external gas can only flow into the pressure replenishing groove 131 and the pressure chamber 111 in one direction, effectively preventing the high-pressure gas in the pressure chamber 111 from leaking back, thereby ensuring the stability of the gas pressure in the pressure chamber 111. In addition, the independent design of the pressure replenishing groove 131 makes maintenance operations more convenient. There is no need to disassemble other components such as the gate 4 for inspection and maintenance, which significantly reduces operation and maintenance costs and downtime risks.

[0026] The traction assembly 8 includes a synchronizing member 14 disposed on one side of the gate frame 3. The synchronizing member 14 transmits the power generated when the gate 4 descends, driving the two rubber side plates 6 to move synchronously towards each other, thereby achieving clamping and sealing of the side of the gate 4. A transmission member 15 is disposed inside the gate frame 3 to transmit power to the corresponding two rubber side plates 6, driving the two rubber side plates 6 to clamp in the center or separate in the opposite direction.

[0027] Synchronization component 14 includes a synchronization groove 141 opened in the gate frame 3. The synchronization groove 141 is located on one side of the gate 4 and communicates with the adjacent guide groove 9. A synchronization plate 142 is slidably arranged in the synchronization groove 141. The synchronization plate 142 is L-shaped. Grooves 143 are opened at both ends of the top of the pressure plate 112. The bottom of the synchronization plate 142 fits into the corresponding groove 143 and is horizontal with the top of the pressure plate 112. When the gate 4 contacts the pressure plate 112 and is pressed downward, the synchronous plate 142 located in the groove 143 moves downward accordingly, so that the synchronous plate 142 slides downward along the synchronous groove 141, and then drives multiple transmission plates 152 to move through the synchronous plate 142, so that the corresponding rubber side plate 6 presses the side of the gate 4 to form a lateral sealing barrier.

[0028] The transmission component 15 includes two sliding grooves 151 opened in the door frame 3. Two rubber side plates 6 in each group are slidably disposed in the corresponding sliding grooves 151. Multiple transmission plates 152 are rotatably disposed on both sides of the synchronization plate 142 via a rotating shaft. Both rubber side plates 6 are C-shaped, with one end attached to the gate 4 and the other end rotatably connected to the corresponding transmission plate 152 via a rotating shaft. As the synchronizing plate 142 moves downward within the synchronizing groove 141, it pulls multiple transmission plates 152 downward, causing the angle between the transmission plates 152 and the synchronizing plate 142 to gradually decrease. This results in the two rubber side plates 6 within the sliding groove 151 gradually approaching the sides of the synchronizing plate 142 and applying pressure to the sides of the gate 4, thus achieving a tight fit and seal on the sides of the gate 4. This method ensures uniform force on both sides, preventing seal failure or component deformation due to excessive pressure on one side. The gate 4 is sealed on both sides simultaneously, effectively preventing one-way leakage of the reservoir and providing double protection against leakage problems. It can also effectively resist reverse water pressure impact. In addition, this structural design cleverly utilizes the gate 4's own weight as a power source, eliminating the need for additional hydraulic or electric drive devices. This not only simplifies the overall structure but also significantly improves the reliability and safety of the system under extreme conditions such as power outages.

[0029] An interceptor 16 is provided on the side of the gate frame 3 away from the pressure replenishment groove 131 to guide the water flow and intercept stones and sand. The interceptor 16 includes multiple support plates 161 provided on one side of the gate frame 3. Bolts 162 are provided on each of the multiple support plates 161. The multiple support plates 161 are movably mounted on the gate frame 3 by corresponding bolts 162. An arc plate 163 is provided on the top of the multiple support plates 161, and the concave surface of the arc plate 163 faces the water-facing side of the gate 4. When water at low water levels carries silt or gravel and tries to pass through the bottom of gate 4, it will first impact the concave surface of the arc plate 163. Utilizing the guiding effect of the arc structure, the water carrying impurities is guided downwards and slids down the surface of the arc plate 163 to the bottom, thus preventing impurities from directly accumulating on the contact surface between gate 4 and gate frame 3. This effectively prevents poor sealing or component wear caused by gravel and sand jamming. In addition, the design of the support plate 161 being movably connected to the gate frame 3 via bolts 162 allows workers to choose to disassemble or install it according to actual needs.

[0030] 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.

[0031] 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.

Claims

1. A seepage prevention and reinforcement device for water conservancy reservoirs, comprising a gate chamber (1) and a lifting system (2), characterized in that, Also includes: A door frame (3) is set inside the gate chamber (1). A gate (4) is slidably set inside the door frame (3). The gate (4) is set at the bottom of the lifting system (2) and used in conjunction with it. Both sides of the bottom end of the gate (4) are inclined surfaces. Two rubber base plates (5) are provided, and both rubber base plates (5) are slidably disposed in the door frame (3). Four rubber side plates (6) are slidably disposed in the door frame (3). The four rubber side plates (6) are arranged in pairs and are located on both sides of the gate (4). A pneumatic assembly (7) is provided below the gate (4) to drive the two rubber base plates (5) to move and squeeze the bottom of the gate (4), thereby sealing the gap between the bottom of the gate (4) and the gate frame (3); The traction assembly (8) is provided in two sets, and each set of the traction assembly (8) is used in conjunction with a corresponding set of rubber side plates (6) to drive the two corresponding rubber side plates (6) to move relative to each other and clamp the side of the gate (4) to seal the gap between the side of the gate (4) and the gate frame (3).

2. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 1, characterized in that: Two guide grooves (9) are provided in the door frame (3), and the two guide grooves (9) are located on both sides of the gate (4). The gate (4) is slidably disposed in the door frame (3) through the two guide grooves (9). An embedding groove (10) is provided in the door frame (3), and the embedding groove (10) is located below the gate (4) and cooperates with the bottom end of the gate (4). The embedding groove (10) communicates with the two guide grooves (9).

3. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 2, characterized in that: The pneumatic assembly (7) includes a pressure-bearing member (11) disposed in the door frame (3) for receiving the weight transmitted by the gate (4) and the power generated when it descends, and converting it into the driving force of the two rubber base plates (5). A limit member (12) is disposed in the door frame (3) for limiting the movement trajectory of the two rubber base plates (5) to ensure that the two rubber base plates (5) can move along a predetermined trajectory. A pressure-replenishing member (13) is also disposed in the door frame (3) for replenishing the air pressure required when the two rubber base plates (5) pop out, so as to maintain the continuous compression and sealing of the bottom end of the gate (4).

4. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 3, characterized in that: The pressure-bearing component (11) includes a pressure-bearing cavity (111) opened in the door frame (3), and the pressure-bearing cavity (111) is located below the embedding groove (10) and communicates with the embedding groove (10). A pressure-bearing plate (112) is slidably arranged in the pressure-bearing cavity (111). The top of the pressure-bearing plate (112) is used in conjunction with the bottom of the gate (4). A plurality of return springs (113) are equidistantly arranged at the bottom of the pressure-bearing plate (112), and the bottom ends of the plurality of return springs (113) are fixedly connected to the bottom of the pressure-bearing cavity (111).

5. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 4, characterized in that: The limiting member (12) includes two limiting grooves (121) opened in the door frame (3), and both limiting grooves (121) are arc-shaped and located on both sides of the pressure-bearing cavity (111). The bottom ends of the two limiting grooves (121) are connected to the pressure-bearing cavity (111) and located at the bottom of the pressure-bearing cavity (111). The top ends of the two grooves extend to the two inclined surfaces at the bottom of the embedding groove (10) and are connected to the embedding groove (10). The middle section of the two limiting grooves (121) is provided with a protrusion (122). The two rubber base plates (5) are slidably disposed in the corresponding limiting grooves (121) and located above the corresponding protrusions (122). The two rubber base plates (5) are arc-shaped and their curvature is adapted to the inner wall of the limiting groove (121).

6. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 5, characterized in that: The pressure-replenishing component (13) includes a pressure-replenishing groove (131) opened in the door frame (3). The pressure-replenishing groove (131) is located on the side of the door frame (3) away from the reservoir and is connected to one of the two limiting grooves (121). A one-way valve (132) is provided in the pressure-replenishing groove (131). The air inlet of the one-way valve (132) is connected to an external air source, and the air outlet is directed toward the pressure-replenishing groove (131) connected to it.

7. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 6, characterized in that: The traction assembly (8) includes a synchronizing element (14) disposed on one side of the gate frame (3). The synchronizing element (14) transmits the power generated when the gate (4) descends, driving the two rubber side plates (6) to move synchronously towards each other, thereby achieving clamping and sealing of the side of the gate (4). A transmission element (15) is disposed inside the gate frame (3) to transmit power to the corresponding two rubber side plates (6), driving the two rubber side plates (6) to clamp in the center or separate in the opposite direction.

8. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 7, characterized in that: The synchronization component (14) includes a synchronization groove (141) opened in the door frame (3). The synchronization groove (141) is located on one side of the gate (4) and communicates with the adjacent guide groove (9). A synchronization plate (142) is slidably arranged in the synchronization groove (141), and the synchronization plate (142) is L-shaped. The top two ends of the pressure plate (112) are provided with grooves (143). The bottom of the synchronization plate (142) fits into the corresponding groove (143) and is horizontal with the top of the pressure plate (112).

9. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 8, characterized in that: The transmission component (15) includes two sliding grooves (151) opened in the door frame (3). Two rubber side plates (6) in each group are slidably arranged in the corresponding sliding grooves (151). Multiple transmission plates (152) are rotatably arranged on both sides of the synchronization plate (142) through a rotating shaft. Both rubber side plates (6) are C-shaped, with one end attached to the gate (4) and the other end rotatably connected to the corresponding transmission plate (152) through a rotating shaft.

10. The seepage prevention and reinforcement device for water conservancy reservoirs according to claim 9, characterized in that: An interceptor (16) is provided on the side of the gate frame (3) away from the pressure replenishment groove (131) to guide the water flow and intercept stones and sand. The interceptor (16) includes multiple support plates (161) provided on one side of the gate frame (3). Bolts (162) are provided on each of the multiple support plates (161). The multiple support plates (161) are movably mounted on the gate frame (3) by corresponding bolts (162). An arc plate (163) is provided on the top of the multiple support plates (161), and the concave surface of the arc plate (163) faces the water-facing surface of the gate (4).

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