A waste mine pumped storage impact buffering structure

Abstract

This application provides an impact buffer structure for pumped storage power stations in abandoned mines, belonging to the field of underground safety protection technology. It includes protective plates and a mounting frame. The protective plates have mounting holes, and there are two plates connected by a connecting plate made of flexible material. One protective plate has multiple first buffer elements on its water-facing surface, and the other protective plate has a second buffer element on its water-facing surface. The first and second buffer elements work together to reduce the impact force of the water flow. The two ends of the connecting plate are fixedly connected to the sides of the two protective plates, forming a continuous protective surface that can adapt to the curved shape of the mine roadway. The mounting frame passes through the mounting holes of the protective plates. This structure, through its modular design consisting of two protective plates and a flexible connecting plate, replaces integral prefabricated components, significantly reducing production and processing costs. Simultaneously, it can seamlessly fit the curved and varied roadways of abandoned mines, improving the adaptability of the buffer structure to different mine environments.

Description

Technical Field

[0001] This application relates to the field of underground safety protection technology for pumped storage power stations, specifically to an impact buffer structure for pumped storage in abandoned mines. Background Technology

[0002] Converting abandoned mines into pumped-storage hydroelectric power stations is a promising energy storage technology that cleverly transforms environmental burden into green energy assets. The process involves using the existing mine pit as an upper reservoir and the underground goaf as a lower reservoir. Water is pumped and stored during off-peak hours and released to generate electricity during peak hours, thus achieving peak-shaving and energy storage for the power grid.

[0003] This approach addresses the safety and environmental hazards posed by abandoned mines, revitalizes idle underground space resources, and saves land and costs associated with building new power plants, making it particularly suitable for the transformation of deep mining areas. Despite engineering challenges such as geological reinforcement, waterproofing, and water treatment, it holds promise as an innovative path for green regeneration and energy transformation in mining areas. Against the backdrop of energy structure transformation and the rapid development of energy storage technologies, utilizing abandoned mines for pumped-storage hydroelectric power has become an important direction for improving energy efficiency and achieving resource reuse.

[0004] However, existing impact buffer structures for pumped-storage systems in abandoned mines generally suffer from high costs and poor adaptability. Traditional buffer structures mostly use standardized prefabricated components, which are difficult to adapt to the diverse and winding roadway structures in abandoned mines. This leads to extensive modifications during installation, increasing construction costs and extending the construction period. Furthermore, due to material and design limitations, some buffer structures lack sufficient buffering performance when dealing with water flow or mechanical impacts, failing to effectively protect the pumped-storage equipment, posing safety hazards, and affecting the long-term stable operation of the system. Therefore, there is an urgent need to develop a low-cost structure that can adapt to different winding roadways and possesses excellent buffering and protection performance to promote the widespread application of pumped-storage technology in abandoned mines. Summary of the Invention

[0005] In view of this, this application provides a pumped storage impact buffer structure for abandoned mines, which is mainly used to solve the problems of high cost and difficulty in adapting to the curved and variable roadway structure in abandoned mines.

[0006] To address the aforementioned technical problems, this application provides a pumped-storage impact buffer structure for abandoned mines, comprising a protective plate and a mounting frame. The protective plate has mounting holes, and there are two protective plates connected by a connecting plate made of flexible material. One of the protective plates has multiple first buffers on its water-facing surface.

[0007] The first and second buffers work together to reduce the impact force of the water flow. The two ends of the connecting plate are fixedly connected to the sides of the two guard plates to form a continuous protective surface that can adapt to the curved shape of the tunnel. The mounting bracket passes through the mounting holes of the guard plate to anchor the protective structure to the inner wall of the tunnel.

[0008] By adopting the above technical solution, a protective structure is formed by two guard plates and a flexible connecting plate, eliminating the need for customized, complex, and expensive integrated buffer devices, thus reducing production and processing costs. Simultaneously, the method of anchoring the mounting frame to the inner wall of the roadway through the mounting holes reduces construction difficulty and labor costs. Furthermore, this structure possesses excellent flexibility and deformation capacity. When applied to abandoned mine roadways of varying shapes and curvatures, the protective structure can be adjusted according to the actual curvature of the roadway, forming a continuous and conforming protective surface to the inner wall of the roadway. This eliminates the need for large-scale roadway modifications, enhancing the adaptability of the buffer structure to different abandoned mine roadways. The first and second buffer components on the water-facing surfaces of the two guard plates work together to absorb and disperse the impact force of the water flow in stages, effectively reducing the impact force of the water flow on the protective structure and the inner wall of the roadway, providing excellent protection for pumped storage equipment.

[0009] Optionally, the first buffer includes a movable plate, which is connected to the guard plate via a hinge mechanism; the front end of the movable plate is provided with an arc-shaped guide section, and at least one airbag ball is provided on the bottom side facing the guard plate.

[0010] By adopting the above technical solution, the hinged mechanism allows the movable plate to rotate flexibly under the impact of water flow, converting the impact force into kinetic energy. Combined with the elastic deformation of the airbag, this double buffering reduces the impact of water flow on the guard plate and the tunnel. At the same time, the arc-shaped guide section at the flow-facing end of the movable plate can guide the water flow, change its direction, and reduce the impact force of the water flow on the inner wall of the tunnel, thus providing good protective performance.

[0011] Optionally, the movable plate is provided with multiple through holes to reduce fluid kinetic energy.

[0012] By adopting the above technical solution, the through hole can break the continuity of water flow, so that the water flow is dispersed into multiple small water flows when passing through the hole. The fluid kinetic energy is greatly reduced by diverting the flow, reducing the direct impact of the water flow on the guard plate and the tunnel. Together with the articulation mechanism, airbag ball and other components, it forms a more efficient buffer system.

[0013] Optionally, the second buffer includes a buffer plate with multiple first water-permeable holes, and a corresponding guard plate with multiple connecting posts. The buffer plate is movably sleeved on the connecting posts, and a stop block is fixedly connected to the end of each connecting post. A first spring is provided between the buffer plate and the guard plate, and a sleeve is provided on the buffer plate, which is adapted to the connecting posts.

[0014] By adopting the above technical solution, the first water-permeable hole on the buffer plate can divert water flow and reduce fluid kinetic energy. In conjunction with the through hole of the first buffer component, it further reduces the impact force of water flow. The buffer plate is sleeved on the connecting column and connected to the guard plate through the first spring. When impacted by water flow, the buffer plate can move along the connecting column. The first spring is compressed and deformed to absorb energy and enhance the buffering performance.

[0015] Optionally, multiple fixing posts are fixedly connected to the side of the guard plate near the buffer plate, and the number and position of the fixing posts are adapted to the number and position of the first water permeable holes.

[0016] By adopting the above technical solution, on the one hand, the fixed column can increase the water flow resistance and help reduce the fluid kinetic energy. In conjunction with the first water permeable hole, through hole and other structures, it can enhance the water flow buffering effect. On the other hand, when the first water permeable hole is blocked, as the buffer plate moves, the fixed column can be inserted into the corresponding first water permeable hole to clear it and maintain its good performance.

[0017] Optionally, a side plate is vertically fixed to the side of the buffer plate away from the connecting plate. The side plate is provided with multiple second water permeable holes. A baffle is provided inside the second water permeable hole. A connecting frame is provided in the middle of the baffle. A second spring is provided between the connecting frame and the side plate.

[0018] By adopting the above technical solution, the side plate can effectively change part of the water flow direction, guiding it through the buffer plate and the first permeable hole, ensuring that the buffering effect is fully utilized. When the water flow impact force increases, the water flow can overcome the elastic force of the second spring, causing the second permeable hole to open. At this time, the water flow can be further dispersed, the kinetic energy of the water flow can be reduced, and the impact of the water flow can be effectively resisted, ensuring the stable operation of the buffer structure under complex working conditions.

[0019] Optionally, an airbag is provided on the side of the connecting plate near the mounting bracket.

[0020] By adopting the above technical solution, the airbag, with its deformable characteristics, can closely conform to the sidewalls of various complex roadways, significantly increasing the contact area between the connecting plate and the inner wall of the roadway, thereby effectively dispersing the impact force of the water flow. At the same time, the airbag can also provide stable elastic support for the connecting plate, absorbing energy through elastic deformation when impacted by the water flow, further buffering the force of the water flow on the protective structure, and providing reliable protection for the inner wall of the roadway.

[0021] Optionally, the top and bottom of the guard plate and connecting plate are provided with bent plates.

[0022] By adopting the above technical solution, this structure can not only effectively buffer the impact of water flow, but also provide all-round protection for the top and bottom surfaces of the tunnel. Through the design that fits tightly to the top and bottom surfaces of the tunnel, it effectively fills the gaps at the top and bottom, preventing water from entering the channel and avoiding water seepage from the gaps that could erode the inner wall of the tunnel.

[0023] Optionally, a buckle plate is hinged to the end of the guard plate away from the connecting plate, a toothed plate is provided on one side of the buckle plate, and an anchor rod is provided in the middle of the buckle plate.

[0024] By adopting the above technical solution, the toothed plate on one side of the protective plate can be firmly embedded in the inner wall of the roadway, forming a tight sealing structure that effectively prevents water from seeping in through the gap between the protective plate side plate and the roadway. At the same time, the toothed plate and the bent plate work together to build a comprehensive protective barrier, which can not only resist the impact of water flow, but also prevent water seepage and erosion, providing reliable protection for the roadway and ensuring the stable operation of the pumped storage system in abandoned mines.

[0025] Optionally, the mounting bracket includes a fixing rod, on which a circular plate and a pad are provided, and an end block is provided at one end of the fixing rod.

[0026] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0027] 1. The modular design, consisting of two protective plates and a flexible connecting plate, replaces the monolithic prefabricated components, significantly reducing production and processing costs. Simultaneously, the installation process is simplified by using mounting brackets to anchor through mounting holes, reducing construction difficulty and labor costs. Its flexibility allows it to seamlessly fit into the winding and varied abandoned mine roadways without requiring large-scale roadway modifications, greatly improving the adaptability of the buffer structure to different mining environments.

[0028] 2. Through the coordinated operation of two sets of buffer components, the first buffer element utilizes the hinged rotation of the movable plate, the spherical deformation of the airbag, and the diversion of water flow through the through holes. The second buffer element, with the help of a buffer plate with permeable holes, a moving compression spring, side plate guidance, and openable permeable holes, achieves multi-stage and multi-mechanism absorption, dispersion, and reduction of the impact kinetic energy of the water flow. The arc-shaped guide section of the movable plate and the side plate can effectively change the direction of the water flow, reducing the direct impact on the inner wall of the tunnel and providing good protective performance.

[0029] 3. Through the bending plates at the top and bottom of the guard plate and connecting plate, combined with the anchoring structure of the side buckle plate and tooth plate, it can tightly fit the top, bottom and side walls of the roadway, and seal the gaps in all directions, effectively blocking water intrusion and preventing the roadway from being eroded by water flow; when the buffer plate moves under the impact of water flow, the fixing column can automatically clear the blocked first water hole, reduce the frequency of maintenance, ensure the long-term stable operation of the buffer structure, and keep the buffer effect efficient and reliable. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the structure of a pumped storage impact buffer structure for abandoned mines according to this application;

[0031] Figure 2 is a schematic diagram of the back structure of a pumped storage impact buffer structure for abandoned mines according to this application;

[0032] Figure 3 is a cross-sectional structural diagram of the second buffer and the side plate in this application;

[0033] Figure 4 is a structural schematic diagram of the side plate and the bent plate in this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Guard plate; 2. Fixing rod; 21. Circular plate; 22. Pad plate; 23. End block;

[0035] 3. Movable plate; 31. Airbag bulb; 32. Through hole; 4. Buffer plate; 41. First water-permeable hole; 42. Fixing

[0036] 43. Column; 44. Connecting column; 45. First spring; 46. Stop block; 47. Sleeve; 58. Side plate; 59. Second water-permeable hole; 50. Baffle plate; 51. Connecting frame; 52. Second spring; 6. Bending plate; 70. Buckle plate; 71. Tooth plate; 72. Anchor bolt; 81. Connecting plate; 82. Airbag body. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will be combined with the embodiments of this application. Figures 1-4 The technical solutions of the embodiments of this application are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this application are within the scope of protection of this application.

[0038] Referring to Figures 1 and 2, this embodiment provides an impact buffer structure for pumped-storage water storage in abandoned mines, including a protective plate 1, a mounting frame, a connecting plate 8, a first buffer component, and a second buffer component. The connecting plate 8 is made of a flexible material. There are two protective plates 1, connected by the connecting plate 8. In practical applications, the flexible material can be high-strength, high-flexibility rubber or a high-elasticity polymer. Multiple first buffer components are provided, arranged on the water-facing surface of one of the protective plates 1, and a second buffer component is arranged on the water-facing surface of the other protective plate 1. The first and second buffer components work together to reduce the impact force of the water flow. The protective plate 1 has mounting holes, through which the mounting frame passes, anchoring the entire protective structure securely to the inner wall of the tunnel. For example, at bends in the tunnel, the connecting plate 8, due to its flexibility, can naturally deform with the curvature of the tunnel, ensuring that the two protective plates 1 always conform to the inner wall of the tunnel, guaranteeing the protective effect.

[0039] Referring to Figure 1, the first buffer component includes a movable plate 3, an airbag ball 31, and through holes 32. The movable plate 3 is connected to the guard plate 1 via a hinge mechanism. The hinge mechanism can adopt common structures such as hinges or joints, allowing the movable plate 3 to rotate flexibly under the impact of water flow. The upstream end of the movable plate 3 is provided with an arc-shaped guide section to guide the water flow and reduce frontal impact. The airbag ball 31 is fixed to the bottom of the movable plate 3 on the side facing the guard plate 1. When impacted, it compresses and deforms to absorb energy. The airbag ball 31 is made of highly elastic rubber material, which can absorb some energy through elastic deformation when impacted by water flow. There are multiple through holes 32, and the multiple through holes 32 are evenly opened on the surface of the movable plate 3. When the water flow passes through the through holes 32, it is dispersed into multiple fine streams to reduce kinetic energy. When the water flow impacts the movable plate 3, it rotates around the hinge point, and at the same time, the airbag ball 31 is compressed and deformed. Combined with the diversion effect of the through holes 32, multi-stage buffering is achieved.

[0040] The hinge mechanism allows the movable plate 3 to rotate flexibly under the impact of water flow, converting the impact force into kinetic energy, in conjunction with...

[0041] The airbag 31 features elastic deformation, providing double buffering to reduce the impact of water flow on the guard plate 1 and the tunnel. Simultaneously, the arc-shaped guide section at the flow-facing end of the movable plate 3 can divert water flow, change its direction, and reduce the impact force of the water flow on the tunnel's inner wall, thus providing excellent protective performance.

[0042] Referring to Figures 1, 3, and 4, the second buffer component includes a buffer plate 4, first water-permeable holes 41, fixing posts 42, connecting posts 43, and a first spring 44. There are multiple first water-permeable holes 41, evenly distributed on the buffer plate 4. The number and position of the fixing posts 42 correspond to the number and position of the first water-permeable holes 41, and the fixing posts 42 are vertically fixed to the corresponding guard plate 1. There are four connecting posts 43, arranged in a rectangular shape on the guard plate 1. The buffer plate 4 is movably fitted onto the connecting posts 43, and a stop block 45 is fixedly connected to the end of each connecting post 43 to prevent the buffer plate 4 from detaching from the connecting post 43. The first spring 44 is fitted onto the connecting post 43, with its two ends abutting against the buffer plate 4 and the guard plate 1, respectively. When water flows and impacts the buffer plate 4, the buffer plate 4 can move along the connecting column 43 towards the guard plate 1, and the first spring 44 is compressed. The elastic deformation of the first spring 44 absorbs the impact energy of the water flow. A sleeve 46 is provided on the buffer plate 4, which is adapted to the connecting column 43 to improve the structural stability of the buffer plate 4.

[0043] The first permeable hole 41 on the buffer plate 4 can divert water flow and reduce fluid kinetic energy. Combined with the through hole 32 of the first buffer component, it further reduces the impact force of the water flow. The buffer plate 4 is fitted onto the connecting column 43 and connected to the guard plate 1 via the first spring 44. When impacted by water flow, the buffer plate 4 can move along the connecting column 43, and the first spring 44 compresses and deforms to absorb energy, enhancing the buffering performance. Simultaneously, when the buffer plate 4 moves under the impact of water flow, the fixed column 42 can automatically clear any blockages in the first permeable hole 41, reducing maintenance frequency and ensuring long-term stable operation of the buffer structure. Under normal operating conditions, the fixed column 42 can increase the water flow resistance, further reducing fluid kinetic energy.

[0044] Referring to Figure 2 and Figure 4 The mounting frame includes a fixing rod 2, on which a circular plate 21 and a pad 22 are mounted. One end of the fixing rod 2 has an end block 23. When installing the protective structure, the fixing rod 2 passes through the mounting hole of the protective plate 1. The circular plate 21 is embedded in the inner wall of the tunnel to increase the contact area between the fixing rod 2 and the inner wall of the tunnel, making its fixation more secure. The pad 22 is located between the inner wall of the tunnel and the protective plate 1.

[0045] Additionally, referring to Figures 1, 3, and 4, a side plate 5 is vertically fixed to the side of the buffer plate 4 away from the connecting plate 8. Multiple second permeable holes 51 are provided on the side plate 5. A baffle 52 is provided inside each second permeable hole 51, and a connecting frame 53 is provided in the middle of the baffle 52. A second spring 54 is provided between the connecting frame 53 and the side plate 5. When the water flow impact force is small, the second spring 54 keeps the baffle 52 closed, and the side plate 5 guides the water flow through the buffer plate 4 and the first permeable holes 41. When the water flow impact force increases, the water flow overcomes...

[0046] The elastic force of the second spring 54 pushes the baffle 52 to open the second water-permeable hole 51, further dispersing the water flow and reducing the kinetic energy of the water flow.

[0047] The side plate 5 can effectively change part of the water flow direction, guiding it through the buffer plate 4 and the first permeable hole 41, ensuring that the buffering effect is fully utilized. When the water flow impact force increases, the water flow can overcome the elastic force of the second spring 54, causing the second permeable hole 51 to open. At this time, the water flow can be further dispersed, the kinetic energy of the water flow can be reduced, and the impact of the water flow can be effectively resisted, ensuring the stable operation of the buffer structure under complex working conditions.

[0048] Referring to Figure 2, an airbag 81 is provided on the side of the connecting plate 8 near the mounting bracket. The airbag 81 is made of inflatable rubber material.

[0049] When installing the protective structure, the protective structure is initially installed on the inner wall of the tunnel. The airbag 81 is inflated by the inflation device to make it fit tightly against the side wall of the tunnel, increasing the contact area between the connecting plate 8 and the inner wall of the tunnel, dispersing the impact force of the water flow, and absorbing energy through elastic deformation when the water flow impacts.

[0050] Refer to Figures 1 and 2. Figure 4 The top and bottom of the guard plate 1 and the connecting plate 8 are both provided with bent plates 6. The bent plates 6 can be formed by bending the guard plate 1 and the connecting plate 8. The shape of the bent plates 6 is adapted to the contour of the tunnel top and ground. After installation, they can fit tightly against the tunnel top and bottom, fill the gaps at the top and bottom, and prevent water intrusion.

[0051] This structure not only effectively buffers the impact of water flow but also provides all-around protection for the tunnel's top and bottom surfaces. Through a design that closely fits the tunnel's top and bottom surfaces, it effectively fills the gaps, preventing water from entering the passage and avoiding water seepage that could erode the tunnel's inner walls.

[0052] Referring to Figures 1 and 2, a buckle plate 7 is hinged to the end of the guard plate 1 away from the connecting plate 8. A toothed plate 71 is provided on one side of the buckle plate 7, and an anchor rod 72 is provided in the middle of the buckle plate 7.

[0053] During installation, after the guard plate 1 is fixed, the buckle plate 7 is rotated so that the toothed plate 71 is embedded in the inner wall of the tunnel. Then, the buckle plate 7 is further anchored to the inner wall of the tunnel by the anchor rod 72 to form a tight sealing structure, preventing water from seeping in from the gap between the guard plate 1 and the tunnel.

[0054] The implementation principle of the pumped storage impact buffer structure for abandoned mines in this application embodiment is as follows:

[0055] The water flow impact protection structure includes a movable plate 3 in the first buffer component that rotates via a hinge mechanism under water flow impact. An arc-shaped guide section diverts the water flow, through-hole 32 disperses the water flow and reduces kinetic energy, and an airbag 31 absorbs energy through elastic deformation. Simultaneously, the buffer plate 4 in the second buffer component moves along the connecting column 43 under water flow impact. A first spring 44 compresses to absorb energy, and the first water-permeable hole 41 and the fixed column 42 work together to reduce water flow energy. When the water flow impact force increases, the second water-permeable hole 51 on the side plate 5 opens to further disperse the water flow. (Connection)

[0056] The airbag 81 on plate 8, the guard plate 1, and the bending plate 6, buckle plate 7 and toothed plate 71 of connecting plate 8 work together to reduce the impact force of water flow in all directions, protect the inner wall of the tunnel and the pumping and storage equipment, and ensure the stable operation of the system.

[0057] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A pumped-storage impact buffer structure for abandoned mines, comprising a protective plate (1) and a mounting frame, wherein the protective plate (1) is provided with mounting holes, characterized in that: There are two guard plates (1), which are connected by a connecting plate (8) made of flexible material; one guard plate (1) has multiple first buffers on its water-facing surface, and the other guard plate (1) has a second buffer on its water-facing surface; the first buffers and the second buffers work together to reduce the impact force of the water flow. The two ends of the connecting plate (8) are fixedly connected to the sides of the two guard plates (1) respectively, forming a continuous protective surface that can adapt to the curved shape of the roadway; the mounting frame passes through the mounting hole of the guard plate (1) and anchors the protective structure to the inner wall of the roadway.

2. A spent mine pumped hydro energy storage impact mitigation structure according to claim 1, wherein: The first buffer includes a movable plate (3), which is connected to the guard plate (1) by a hinge mechanism; the front end of the movable plate (3) is provided with an arc-shaped guide section, and at least one airbag ball (31) is provided on the side of its bottom facing the guard plate (1).

3. A spent mine pumped hydro energy storage impact mitigation structure according to claim 2, wherein: The movable plate (3) is provided with multiple through holes (32) to reduce fluid kinetic energy.

4. A spent mine pumped hydro energy storage impact mitigation structure according to claim 3, wherein: The second buffer includes a buffer plate (4), which has a plurality of first water-permeable holes (41) and a plurality of connecting posts (43) on the corresponding guard plate (1). The buffer plate (4) is movably sleeved on the connecting posts (43). A stop block (45) is fixedly connected to the end of the connecting post (43). A first spring (44) is provided between the buffer plate (4) and the guard plate (1). A sleeve (46) is provided on the buffer plate (4) and is adapted to the connecting post (43).

5. A spent mine pumped hydro energy storage impact mitigation structure according to claim 4, wherein: The guard plate (1) is fixedly connected to a number of fixed posts (42) on the side near the buffer plate (4). The number and position of the fixed posts (42) are adapted to the number and position of the first water-permeable hole (41).

6. A spent mine pumped hydro energy storage impact mitigation structure according to claim 5, wherein: The buffer plate (4) has a side plate (5) vertically fixed on the side away from the connecting plate (8). The side plate (5) is provided with a plurality of second water-permeable holes (51). A baffle (52) is provided inside the second water-permeable hole (51). A connecting frame (53) is provided in the middle of the baffle (52). A connection frame (53) is provided between the connecting frame (53) and the side plate (5). There is a second spring (54).

7. The pumped-storage impact buffer structure for abandoned mines according to claim 1, characterized in that: An airbag (81) is provided on the side of the connecting plate (8) near the mounting frame.

8. The pumped-storage impact buffer structure for abandoned mines according to claim 1, characterized in that: The top and bottom of the guard plate (1) and the connecting plate (8) are provided with bent plates (6).

9. The pumped-storage impact buffer structure for abandoned mines according to claim 1, characterized in that: The end of the guard plate (1) away from the connecting plate (8) is hinged with a buckle plate (7), a tooth plate (71) is provided on one side of the buckle plate (7), and an anchor rod (72) is provided in the middle of the buckle plate (7).

10. The pumped-storage impact buffer structure for abandoned mines according to claim 1, characterized in that: The mounting bracket includes a fixing rod (2), on which a circular plate (21) and a pad (22) are provided, and an end block (23) is provided at one end of the fixing rod (2).

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