A water retaining structure for flood control of a pumped storage power station

Abstract

The application relates to a water retaining structure for flood control of a pumped storage power station and relates to the technical field of flood control facilities, which comprises a baffle, the inside of the baffle is provided with an extension mechanism, the outside of the baffle is provided with a corner flood retaining mechanism, the inside of the baffle is provided with a quick-release mechanism, the extension mechanism comprises a supporting plate one, the inside of the baffle is fixedly connected with an air cylinder, the driving end of the air cylinder is fixedly connected with a transmission column, the inside of the baffle is fixedly connected with a supporting plate two, the inside of the supporting plate two is rotationally connected with a transmission wheel, the inside of the baffle is fixedly connected with an up-down moving assembly. The application has the advantages that the height of the baffle can be flexibly adjusted through air cylinder driving, the lifting range of the baffle can be accurately controlled according to the actual water level of flood, different magnitude floods can be effectively coped with, linear motion is converted into rotary motion and then into linear lifting, and reliable flood control guarantee is provided for the pumped storage power station.

Description

Technical Field

[0001] This application relates to the field of flood control facilities technology, and in particular to a water-retaining structure for flood control in a pumped storage power station. Background Technology

[0002] Against the backdrop of the global energy structure's accelerated transition towards cleaner and lower-carbon energy, pumped storage power stations, as crucial regulating power sources in the power system, undertake key tasks such as peak shaving, valley filling, and energy storage, playing a vital role in ensuring stable grid operation and energy security. However, their unique geographical location and operational characteristics expose them to severe flood threats during the flood season. Once floodwaters breach protective barriers, they can cause not only damage to power station equipment and power outages but also potentially trigger serious secondary disasters. Therefore, developing efficient and reliable flood-resistant water-retaining structures has become an urgent need to ensure the safe and stable operation of pumped storage power stations.

[0003] A search revealed Chinese patent publication number CN220099791U, which discloses a flood-control structure for a pumped-storage power station. The structure includes a first dam and a second dam fixedly connected to it. The bottom surfaces of the first and second dams have a height difference. Both the first and second dams are equipped with hydroelectric power generation devices. The tops of both dams are connected to a protective structure via connecting structures. These connecting structures include grooves and clamping structures located at the bottom of the grooves. The clamping structures cooperate with a fixed plate fixedly connected to the bottom of the protective structure. This invention incorporates a protective groove and a protective plate, which can solve the problem of insufficient protection during high floods. During high floods, the protective plate can be pulled out from the protective groove for effective protection.

[0004] The aforementioned patent specification mentions that "the protective channel and protective plate can solve the problem of insufficient protection during excessive flooding. During excessive flooding, the protective plate can be pulled out from inside the protective channel for effective protection." While this allows for effective protection by pulling the protective plate out of the channel during excessive flooding, it lacks flexibility in adjusting to the actual flood level. When encountering exceptionally large floods exceeding design standards, the water level surpasses the height of the flood-retaining structure, easily leading to dam overflow. The floodwaters will directly enter the power station, causing devastating damage to its facilities. Therefore, a flood-retaining structure for pumped-storage power stations is proposed to address these problems. Utility Model Content

[0005] The purpose of this application is to provide a flood-control water-retaining structure for pumped storage power stations, aiming to improve the problem of insufficient ability of some devices to cope with changes in flood water level.

[0006] The technical solution for a flood control water-retaining structure for a pumped storage power station provided in this application is as follows:

[0007] A flood-control structure for a pumped storage power station includes a baffle plate. A support rod and a support triangular plate are fixedly connected to the outside of the baffle plate. An extension mechanism and a corner flood-blocking mechanism are provided inside the baffle plate. A quick-release mechanism is also provided inside the baffle plate. The extension mechanism includes a first support plate, which is fixedly connected to the inside of the baffle plate. A cylinder is fixedly connected inside the baffle plate, and a transmission column is fixedly connected to the drive end of the cylinder. A second support plate is fixedly connected inside the baffle plate, and a transmission wheel is rotatably connected inside the second support plate. A vertical moving assembly is fixedly connected inside the baffle plate.

[0008] The above technical solution utilizes a high-strength alloy baffle as its main body, with a triangular support plate and a support rod inserted into the foundation forming a stable support system to enhance overall impact resistance. When a flood occurs, the cylinder in the extension mechanism drives the transmission column to slide within the support plate. Through the meshing of the transmission column and the transmission wheel, linear motion is converted into rotational motion, which in turn drives the up-and-down moving components to flexibly extend the height of the baffle. The quick-release mechanism adopts a spring buffer and sliding plug design. In the corner flood control mechanism, the sliding inclined plate can adaptively slide within the chute to disperse and guide the flood impact force, achieving rapid assembly, flexible adjustment, and efficient flood control, providing reliable protection for pumped storage power stations.

[0009] Preferably, the quick-release mechanism includes a sliding shaft, the outside of which is slidably connected to the inside of the baffle, and a buffer spring is sleeved on the outside of the sliding shaft;

[0010] By adopting the above technical solution, when the quick-release mechanism is working, the sliding shaft of one baffle is aligned with the corresponding position of the other baffle and inserted. The sliding shaft slides inside the baffle, and the buffer spring fitted outside it is compressed and deformed, playing a buffering role and avoiding rigid collisions during connection. When the sliding shaft slides into place, its external limiting structure and the mating structure inside the other baffle engage with each other to achieve a stable connection. During the process of the extension plate sliding inside the baffle with the up-and-down moving assembly and the connecting plate sliding outside the baffle to adjust the baffle height, the quick-release mechanism ensures that the connection between each baffle is tight and does not loosen, thanks to the cooperation of the sliding shaft and the buffer spring.

[0011] Preferably, the external part of the transmission column is slidably connected to the inside of the support plate, and the external toothed hole of the transmission column is engaged with the external teeth of the transmission wheel.

[0012] By adopting the above technical solution, when it is necessary to raise the height of the baffle, the extension mechanism is activated, and the cylinder drives the transmission column to slide linearly inside the support plate. Since the external tooth hole of the transmission column is engaged with the external tooth of the transmission wheel, the linear motion of the transmission column will be converted into the rotational motion of the transmission wheel.

[0013] Preferably, the up-and-down moving assembly includes a limiting ring, the outer side of which is fixedly connected to the inside of the baffle, a pushing column is slidably connected to the outer side of the limiting ring, the outer teeth of the transmission wheel mesh with the outer tooth holes of the pushing column, a connecting plate is fixedly connected to the outer side of the pushing column, an extension plate is fixedly connected to the outer side of the connecting plate, the outer side of the extension plate is slidably connected to the inside of the baffle, and the outer side of the connecting plate is slidably connected to the outside of the baffle.

[0014] By adopting the above technical solution, when the transmission wheel rotates under the drive of the transmission column, the meshing action of its external teeth with the external tooth hole of the push column drives the push column to make up-down linear motion within the limiting ring. The limiting ring, through its fixed connection with the baffle, provides a stable sliding track for the push column, ensuring the accuracy of its movement direction.

[0015] Preferably, the buffer spring is externally fixedly connected to the inside of the baffle, the sliding shaft is externally fixedly connected to the limit block, and the buffer spring is externally fixedly connected to the outside of the limit block.

[0016] By adopting the above technical solution, when assembling multiple baffles, the sliding shaft is inserted into the corresponding hole of the adjacent baffle. During the sliding of the sliding shaft inside the baffle, the limiting block moves accordingly, squeezing the buffer spring 1 fixed between the baffle and the limiting block. The spring is compressed to generate buffer force, avoiding rigid collision when the sliding shaft is inserted. When the sliding shaft slides to the predetermined position, the limiting block locks the corresponding structure, realizing a stable connection between the baffles. The buffer spring 1 continuously provides elastic support force to ensure a tight connection.

[0017] Preferably, a fixing ring is fixedly connected inside another baffle, a sliding rod is slidably connected inside the fixing ring, a buffer spring three is sleeved on the outside of the sliding rod, the buffer spring three is fixedly connected to the outside of the fixing ring, and the buffer spring three is fixedly connected to the outside of the baffle.

[0018] By adopting the above technical solution, when splicing baffles, the baffle with the fixing ring cooperates with another baffle, and the sliding rod slides inside the fixing ring. When the two baffles approach each other, the sliding rod is squeezed and retracts into the fixing ring. The buffer spring three, which is sleeved outside the sliding rod, is compressed. One end of the spring is fixed outside the fixing ring, and the other end is fixed outside the baffle. The elastic force generated by the compression plays a buffering role, reducing the impact force when the two baffles are spliced. When the sliding rod slides to the appropriate position, the baffles are kept tightly connected under the elastic force of the buffer spring three.

[0019] Preferably, a hemispherical pushing block is fixedly connected to the outside of the sliding rod, a sliding ring is slidably connected to the outside of the hemispherical pushing block, a second buffer spring is sleeved on the outside of the sliding rod, the second buffer spring is fixedly connected to the outside of the hemispherical pushing block, the second buffer spring is fixedly connected to the outside of the sliding ring, and the sliding ring is slidably connected to the outside of the limiting block.

[0020] By adopting the above technical solution, during the connection process of the quick-release mechanism, when the sliding rod slides into the fixed ring under the action of external force, it drives the hemispherical push block to move synchronously. The spherical surface of the hemispherical push block contacts the inner wall of the sliding ring and pushes it to slide outside the limiting block. At this time, the buffer spring II sleeved outside the sliding rod is compressed, generating elastic buffer force. When the external force disappears or decreases, the elastic force of the buffer spring II makes the sliding ring reset and maintain a tight fit with the limiting block. At the same time, the force is transmitted to the sliding rod through the hemispherical push block to ensure the relative position of the sliding rod and the fixed ring is stable.

[0021] Preferably, the corner flood control mechanism includes a chute, the outside of which is fixedly connected to the outside of the baffle, and a sliding inclined plate is slidably connected to the outside of the chute, the outside of which is slidably connected to the outside of the baffle.

[0022] By adopting the above technical solution, when the flood impacts the corner of the baffle, the corner flood control mechanism is activated. Under the action of the flood impact force, the sliding inclined plate slides along the groove fixed to the outside of the baffle and slides synchronously outside the baffle. By automatically adjusting its own tilt angle, the flood impact force is decomposed into horizontal and vertical components. The horizontal component is transmitted to the main structure of the baffle through the groove, while the vertical component enhances the fit between the sliding inclined plate and the baffle and improves the sealing performance.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The height of the baffle is flexibly adjusted by a cylinder drive. Compared with the traditional fixed-height water-blocking structure, the lifting range of the baffle can be precisely controlled according to the actual water level of the flood, effectively coping with the passage of floods of different magnitudes. The linear motion is converted into rotational motion and then into linear lifting. The structure is compact and reasonable, with high transmission efficiency and stable and reliable movement. It can quickly respond to flood control needs. During the extension process, each component runs within the preset track and limit structure, ensuring the safety and accuracy of the extension operation, enhancing the adaptability and flood control capability of the water-blocking structure, reducing the risk of flood overflow, and providing reliable flood control protection for pumped storage power stations.

[0025] 2. By using sliding shafts, limiting blocks, and sliding rings, rapid and precise docking between baffles is achieved. Compared with traditional complex splicing methods, this significantly improves assembly efficiency and facilitates the rapid construction of long-distance, large-area water-retaining barriers before floods. During operation, three sets of buffer springs play a buffering and shock-absorbing role in the connection, positioning, and stabilization stages, effectively mitigating rigid collisions during connection and absorbing impact forces under flood impact. This prevents structural damage due to stress concentration, ensures the stability of baffle connections and the integrity of the overall structure, extends service life, and provides a reliable and flexible protection solution for flood control in pumped storage power stations. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a flood-control water-retaining structure for a pumped storage power station proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the support rod of a flood-control water-retaining structure for a pumped storage power station proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the chute structure of a flood-control water-retaining structure for a pumped storage power station proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0031] Explanation of reference numerals in the attached drawings: 1. Baffle; 2. Extension mechanism; 21. Support plate one; 22. Cylinder; 23. Transmission column; 24. Transmission wheel; 25. Support plate two; 26. Up-down moving assembly; 261. Limiting ring; 262. Push column; 263. Connecting plate; 264. Extension plate; 3. Supporting triangular plate; 4. Support rod; 5. Corner flood control mechanism; 51. Slide groove; 52. Sliding inclined plate; 6. Quick release mechanism; 61. Sliding shaft; 62. Limiting block; 63. Buffer spring one; 64. Hemispherical push block; 65. Buffer spring two; 66. Sliding ring; 67. Buffer spring three; 68. Fixing ring; 69. Sliding rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0033] Example: A flood-control water-retaining structure for a pumped storage power station, referring to... Figures 1 to 3The system includes a baffle 1, which is used to directly withstand flood pressure and block water flow from invading the pumped storage power station. The baffle 1 is externally fixedly connected to a support rod 4, which is used to vertically support the ground, share the horizontal thrust of the flood on the baffle 1, enhance the stability of the overall structure, and prevent the baffle 1 from overturning. The baffle 1 is externally fixedly connected to a support triangular plate 3, and the baffle 1 is internally equipped with an extension mechanism 2. The extension mechanism 2 is used to flexibly adjust the height of the baffle 1 according to the flood level, so that the water-blocking structure can adapt to floods of different magnitudes and enhance flood control adaptability.

[0034] The exterior of the baffle 1 is equipped with a corner flood barrier mechanism 5, which is specifically designed to deal with the impact of flood on the corner of the baffle 1. By dispersing and guiding the water flow, it avoids damage to the corner due to stress concentration and protects the integrity of the water barrier structure. The interior of the baffle 1 is equipped with a quick-release mechanism 6, which is used to realize the rapid assembly and disassembly of multiple baffles 1. This facilitates the rapid construction of long-distance water barriers before the flood arrives and the rapid disassembly and storage after the flood recedes, thus improving work efficiency.

[0035] The extension mechanism 2 includes a support plate 21, which provides a stable track for the sliding of the transmission column 23 to ensure the accuracy of its linear motion. The support plate 21 is externally fixedly connected to the inside of the baffle 1. A cylinder 22 is fixedly connected inside the baffle 1. The cylinder 22 is used to drive the transmission column 23 to move. The transmission column 23 is used to transmit the linear driving force of the cylinder 22 to the transmission wheel 24. The drive end of the cylinder 22 is fixedly connected to the transmission column 23. A second support plate 25 is fixedly connected inside the baffle 1. The second support plate 25 is used to install and fix the transmission wheel 24.

[0036] To ensure that the transmission wheel 24 remains stable and does not deviate during rotation, the transmission wheel 24 is rotatably connected inside the support plate 25. The transmission wheel 24 is used to convert the linear motion of the transmission column 23 into rotational motion, and then, through meshing with the push column 262, converts the rotational motion into the vertical lifting motion of the push column 262, thereby realizing the transmission of power and the change of motion form. The baffle 1 is fixedly connected to the inside of the baffle 1. The up-and-down moving component 26 is used to convert the rotational motion of the transmission wheel 24 into vertical linear motion, driving the connecting plate 263 and the extension plate 264 to move up and down, thereby realizing the adjustment of the height of the baffle 1. The transmission column 23 is externally slidably connected to the inside of the support plate 21, and the external tooth hole of the transmission column 23 is meshed with the external tooth of the transmission wheel 24.

[0037] The vertical moving assembly 26 includes a limiting ring 261, which provides guidance and limiting for the vertical sliding of the push column 262, ensuring that the push column 262 moves stably in the vertical direction and preventing it from shaking or deviating. The limiting ring 261 is externally fixedly connected to the inside of the baffle 1, and the pushing column 262 is externally slidably connected to the limiting ring 261. The external teeth of the transmission wheel 24 are engaged with the external tooth holes of the push column 262.

[0038] Specifically, when a flood occurs and the height of the baffle 1 needs to be raised, the cylinder 22 is activated, driving the transmission column 23 to move linearly within the track of the support plate 21. The transmission column 23 meshes with the transmission wheel 24 through a toothed hole, converting the linear motion into rotational motion. The transmission wheel 24 then meshes with the toothed hole of the push column 262, driving the up-and-down moving component 26 to move. Guided by the limit ring 261, the push column 262 rises vertically, causing the connecting plate 263 and the extension plate 264 to move upwards synchronously, thus achieving flexible adjustment of the height of the baffle 1. The support rod 4 vertically supports the ground and, together with the support triangle plate 3, enhances the stability of the baffle 1. The corner flood control mechanism 5 disperses the impact force of the water flow at the corner, preventing structural damage. The quick-release mechanism 6 facilitates the rapid assembly and disassembly of multiple baffles 1.

[0039] Reference Figure 1 , Figure 4 and Figure 5 The quick-release mechanism 6 includes a sliding shaft 61, which is used to achieve quick insertion between baffles 1 by sliding inside the baffle 1. The outside of the sliding shaft 61 is slidably connected to the inside of the baffle 1. A buffer spring 63 is sleeved on the outside of the sliding shaft 61. The buffer spring 63 is used to buffer and dampen shock during the insertion and connection of the sliding shaft 61. A connecting plate 263 is fixedly connected to the outside of the push column 262.

[0040] The connecting plate 263 is connected to the extension plate 264. Driven by the push column 262, the extension plate 264 moves up and down. The extension plate 264 slides inside the baffle 1 under the drive of the connecting plate 263, thereby increasing or decreasing the height of the baffle 1. The extension plate 264 is fixedly connected to the outside of the connecting plate 263. The extension plate 264 is slidably connected to the inside of the baffle 1. The connection plate 263 is slidably connected to the outside of the baffle 1.

[0041] The buffer spring 63 is externally fixedly connected to the inside of the baffle 1, and the sliding shaft 61 is externally fixedly connected to the limit block 62. The limit block 62 cooperates with the sliding ring 66 to limit the sliding position of the sliding shaft 61, ensuring that the sliding shaft 61 will not easily slip out after being inserted into place, thus ensuring the reliability of the connection of the baffle 1. The buffer spring 63 is externally fixedly connected to the outside of the limit block 62.

[0042] Another baffle 1 has a fixed ring 68 inside, which provides a sliding track and support for the sliding rod 69, ensuring that the sliding rod 69 can slide stably when subjected to force. The sliding rod 69 is slidably connected inside the fixed ring 68. The sliding rod 69 is used to slide inside the fixed ring 68 during flood impact or the connection of the baffle 1. The sliding rod 69 is fitted with a buffer spring 67 on the outside.

[0043] The buffer spring 67 is used to buffer and provide elastic support during the sliding of the sliding rod 69. The buffer spring 67 is externally fixed to the outside of the fixed ring 68 and the outside of the baffle 1. The sliding rod 69 is externally fixed to a hemispherical push block 64. The hemispherical push block 64 cooperates with the sliding ring 66. Utilizing the special structure of the hemispherical shape, the force of the sliding rod 69 is evenly transmitted to the sliding ring 66. The sliding ring 66 is used to cooperate with the limiting block 62 and slides outside the limiting block 62 under the push of the hemispherical push block 64.

[0044] A sliding ring 66 is slidably connected to the outside of the hemispherical push block 64, and a second buffer spring 65 is sleeved on the outside of the sliding rod 69. The second buffer spring 65 provides buffering force during the cooperation between the sliding ring 66 and the limiting block 62 to prevent rigid contact and ensure a smooth connection process. The second buffer spring 65 is fixedly connected to the outside of the hemispherical push block 64, and the second buffer spring 65 is fixedly connected to the outside of the sliding ring 66. The outside of the sliding ring 66 is slidably connected to the outside of the limiting block 62.

[0045] The corner flood control mechanism 5 includes a chute 51, which provides a sliding track for the sliding inclined plate 52, allowing the sliding inclined plate 52 to slide along a preset direction under the action of flood impact force, thereby dispersing and guiding the flood impact force. The outside of the chute 51 is fixedly connected to the outside of the baffle 1, and the outside of the chute 51 is slidably connected to the sliding inclined plate 52. When the flood impacts the corner of the baffle 1, the sliding inclined plate 52 changes its own angle by sliding in the chute 51, thereby dispersing the flood impact force to different directions. The outside of the sliding inclined plate 52 is slidably connected to the outside of the baffle 1.

[0046] Specifically, during the assembly of the flood-blocking structure, two baffle plates 1 are joined together, and the sliding shaft 61 is slidably inserted into the baffle plate 1. The limiting block 62 on its outside contacts the sliding ring 66 inside the other baffle plate 1. The hemispherical pushing block 64 pushes the sliding ring 66 to slide outside the limiting block 62, cooperating with the limiting block 62 to complete the positioning. Buffer spring 1 63, buffer spring 2 65, and buffer spring 3 67 play a buffering and shock-absorbing role during the connection process, avoiding rigid collisions and ensuring a stable connection. The fixing ring 68 provides a sliding track for the sliding rod 69, ensuring its stable sliding. During flood impact, the sliding inclined plate 52 of the corner flood-blocking mechanism 5 slides in the slide groove 51, changing the angle to disperse the flood impact force.

[0047] The implementation principle of this application embodiment is as follows: When a flood comes and it is necessary to increase the height of the water-blocking structure to resist the flood, the cylinder 22 drives the transmission column 23 to move. The transmission column 23 slides inside the support plate 21. The linear motion of the transmission column 23 is converted into the rotation of the transmission wheel 24. The transmission wheel 24 drives the push column 262 to move up and down within the limiting ring 261. When the push column 262 moves, the connecting plate 263 and the extension plate 264 fixedly connected to it also move. The extension plate 264 slides inside the baffle 1, and the connecting plate 263 slides outside the baffle 1, thereby extending the height of the baffle 1 and enhancing the water-blocking capacity.

[0048] When multiple baffles 1 need to be used in combination, the sliding shaft 61 of one baffle 1 is aligned with the corresponding position of another baffle 1. The sliding shaft 61 slides inside the baffle 1. At this time, the buffer spring 63 sleeved outside the sliding shaft 61 is compressed to provide a buffering effect and prevent rigid collisions during connection. The limiting block 62 on the sliding shaft 61 cooperates with the sliding ring 66 inside the other baffle 1. The sliding ring 66 slides outside the limiting block 62. At the same time, the second buffer spring 65 also plays a role in buffering and positioning. The sliding rod 69 inside the other baffle 1 slides in the fixed ring 68. The third buffer spring 67 also provides buffering. The hemispherical push block 64 on the sliding rod 69 cooperates with the sliding ring 66 to ensure a stable connection between the baffles 1 and reduce structural damage through the buffering of the springs under the impact of floods.

[0049] When a flood impacts the corner of the water-retaining structure, the chute 51 is fixed to the outside of the baffle 1, and the sliding ramp 52 slides inside the chute 51 and outside the baffle 1. The sliding ramp 52 can be adaptively adjusted according to the direction and magnitude of the flood impact force to disperse and guide the flood impact force, avoid the impact force from being concentrated at the corner of the baffle 1 and causing structural damage, thereby enhancing the flood control capability of the water-retaining structure at the corner.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flood-control water-retaining structure for a pumped storage power station, comprising a baffle (1), characterized in that, The baffle (1) is fixedly connected to the outside of a support rod (4), and the baffle (1) is fixedly connected to the outside of a support triangle plate (3). The baffle (1) is provided with an extension mechanism (2) inside, and the baffle (1) is provided with a corner flood control mechanism (5) outside. The baffle (1) is provided with a quick release mechanism (6) inside. The extension mechanism (2) includes a support plate one (21), the support plate one (21) is fixedly connected to the outside of the baffle (1), and the baffle (1) is fixedly connected to a cylinder (22). The drive end of the cylinder (22) is fixedly connected to a transmission column (23). The baffle (1) is fixedly connected to a support plate two (25), and the support plate two (25) is rotatably connected to a transmission wheel (24). The baffle (1) is fixedly connected to an up-and-down moving assembly (26).

2. The flood control water-retaining structure for a pumped storage power station according to claim 1, characterized in that, The quick-release mechanism (6) includes a sliding shaft (61), the outside of which is slidably connected to the inside of the baffle (1), and a buffer spring (63) is sleeved on the outside of the sliding shaft (61).

3. The flood control water-retaining structure for a pumped storage power station according to claim 2, characterized in that, The external of the transmission column (23) is slidably connected to the inside of the support plate (21), and the external tooth hole of the transmission column (23) is engaged with the external tooth of the transmission wheel (24).

4. A flood-control water-retaining structure for a pumped storage power station according to claim 3, characterized in that, The up-and-down moving assembly (26) includes a limiting ring (261), the outside of which is fixedly connected to the inside of the baffle (1), and a pushing column (262) is slidably connected to the outside of the limiting ring (261). The external teeth of the transmission wheel (24) mesh with the external tooth holes of the pushing column (262). A connecting plate (263) is fixedly connected to the outside of the pushing column (262), and an extension plate (264) is fixedly connected to the outside of the connecting plate (263). The outside of the extension plate (264) is slidably connected to the inside of the baffle (1), and the outside of the connecting plate (263) is slidably connected to the outside of the baffle (1).

5. A flood-control water-retaining structure for a pumped storage power station according to claim 2, characterized in that, The buffer spring (63) is externally fixedly connected to the inside of the baffle (1), the sliding shaft (61) is externally fixedly connected to the limit block (62), and the buffer spring (63) is externally fixedly connected to the outside of the limit block (62).

6. A flood-control water-retaining structure for a pumped storage power station according to claim 5, characterized in that, Another baffle (1) is fixedly connected to a fixed ring (68) inside, and a sliding rod (69) is slidably connected inside the fixed ring (68). A buffer spring three (67) is sleeved on the outside of the sliding rod (69). The buffer spring three (67) is fixedly connected to the outside of the fixed ring (68) and the outside of the baffle (1).

7. A flood-control water-retaining structure for a pumped storage power station according to claim 6, characterized in that, The sliding rod (69) is fixedly connected to a hemispherical push block (64), and a sliding ring (66) is slidably connected to the outside of the hemispherical push block (64). A second buffer spring (65) is sleeved on the outside of the sliding rod (69). The second buffer spring (65) is fixedly connected to the outside of the hemispherical push block (64), and the second buffer spring (65) is fixedly connected to the outside of the sliding ring (66). The outside of the sliding ring (66) is slidably connected to the outside of the limiting block (62).

8. A flood-control water-retaining structure for a pumped storage power station according to claim 1, characterized in that, The corner flood control mechanism (5) includes a chute (51), the outside of which is fixedly connected to the outside of the baffle (1), and a sliding inclined plate (52) is slidably connected to the outside of the chute (51), and the outside of the sliding inclined plate (52) is slidably connected to the outside of the baffle (1).

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