Gravity energy storage block and gravity energy storage system

Abstract

The utility model relates to the field of gravity energy storage, and discloses a gravity energy storage block and a gravity energy storage system. The gravity energy storage block comprises a convex energy storage unit, a concave energy storage unit and a stop structure, a convex table is arranged on the convex energy storage unit, a concave groove is formed in the concave energy storage unit, and the convex table and the concave groove can be matched in an inserted mode in the first direction so that the convex energy storage unit and the concave energy storage unit can be connected; the stop structure is arranged at the joint of the convex energy storage unit and the concave energy storage unit so as to limit movement of the convex energy storage unit and the concave energy storage unit in the first direction. The gravity energy storage system adopts the gravity energy storage block for gravity energy storage. The gravity energy storage block is easy to manufacture, facilitates industrial production, can be assembled into different capacities according to needs, and is convenient to transport and transfer due to the fact that the convex energy storage units and the concave energy storage units are connected stably.

Description

Technical Field

[0001] The utility model relates to the field of gravity energy storage, in particular to a gravity energy storage block and a gravity energy storage system. Background Art

[0002] Gravity energy storage is a method of energy storage and release through the conversion of gravitational potential energy and electrical energy. Specifically, it uses height differences in conjunction with electromechanical equipment to raise or lower energy storage blocks to achieve energy storage and conversion. It is a highly sustainable innovative form of energy storage with the advantages of simple principles, fast response, stable performance, and green environmental protection.

[0003] Currently, gravity energy storage projects are typically constructed using abandoned mines or mountain slopes, using frame-type gravity energy storage systems. Frame-type gravity energy storage systems are particularly popular because they are not restricted by terrain. Some current gravity energy storage projects primarily utilize this structure, which requires a large number of energy storage blocks. The larger the gravity energy storage blocks, the higher the lifting height, the more energy they can store and the more electricity they can convert. To achieve this, very large energy storage blocks, often exceeding ten meters in length, are often necessary. However, in a frame-type structure, such large blocks are difficult to transport or move within the energy storage system. Furthermore, manufacturing these large blocks is extremely difficult, making them inconvenient for industrial production. Furthermore, when multiple energy storage blocks of varying capacities are required, existing connections between the blocks are unstable, and customizing blocks of the corresponding capacities requires a long manufacturing time, reducing energy storage efficiency. Summary of the Invention

[0004] The first purpose of the present utility model is to provide a gravity energy storage block, which is not only simple to manufacture and convenient for industrial production, but can also be assembled into different capacities according to needs, and the connection between the convex energy storage unit and the concave energy storage unit is stable, which is convenient for transportation and transfer.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A gravity energy storage block comprises a convex energy storage unit, a concave energy storage unit, and a stop structure. The convex energy storage unit is provided with a convex platform; the concave energy storage unit is provided with a concave groove. The convex platform and the concave groove can be plugged together along a first direction to connect the convex energy storage unit and the concave energy storage unit. The stop structure is provided at the connection between the convex energy storage unit and the concave energy storage unit to limit the movement of the convex energy storage unit and the concave energy storage unit in the first direction.

[0007] Optionally, the convex energy storage unit is provided with convex platforms at both ends of the second direction, and the concave energy storage unit is provided with concave grooves at both ends of the second direction. The convex energy storage unit and the concave energy storage unit can be alternately connected in the second direction, and the second direction is perpendicular to the first direction.

[0008] Optionally, a first retaining groove is further provided on the convex energy storage unit, and a second retaining groove corresponding to the first retaining groove is provided on the concave energy storage unit. The first retaining groove and the second retaining groove are connected to each other, and the retaining structure is installed in the first retaining groove and the second retaining groove.

[0009] Optionally, the stopping structure is bonded in the first stopping groove and the second stopping groove by colloid.

[0010] Optionally, a first reinforcement structure is provided in the convex energy storage unit, the first reinforcement structure includes a first axial longitudinal reinforcement and / or a first transverse stirrup, the first axial longitudinal reinforcement extends along the first direction, and the first plane where the first transverse stirrup is located is perpendicular to the first direction; and / or, a second reinforcement structure is provided in the concave energy storage unit, the second reinforcement structure includes a second axial longitudinal reinforcement and / or a second transverse stirrup, the second axial longitudinal reinforcement extends along the first direction, and the second plane where the second transverse stirrup is located is perpendicular to the first direction.

[0011] Optionally, a plurality of first axial longitudinal bars are provided, and the plurality of first axial longitudinal bars are abutted and supported on the inner side of the first transverse stirrups, and are spaced apart along the contour of the first transverse stirrups; and / or a plurality of second axial longitudinal bars are provided, and the plurality of second axial longitudinal bars are abutted and supported on the inner side of the second transverse stirrups, and are spaced apart along the contour of the second transverse stirrups.

[0012] Optionally, the contour shape of the first transverse stirrup in the first plane is the same as the cross-sectional contour shape of the convex energy storage unit perpendicular to the first direction; and / or, multiple first transverse stirrups are arranged at intervals along the first direction; and / or, the contour shape of the second transverse stirrup in the second plane is the same as the cross-sectional contour shape of the concave energy storage unit perpendicular to the first direction; and / or, multiple second transverse stirrups are arranged at intervals along the first direction.

[0013] Optionally, adjacent convex energy storage units and concave energy storage units are connected via a plurality of one-to-one corresponding convex platforms and concave grooves.

[0014] Optionally, the cross-sectional shape of the convex platform perpendicular to the first direction and the cross-sectional shape of the concave groove perpendicular to the first direction are both trapezoidal.

[0015] The second object of the present utility model is to provide a gravity energy storage system, which includes a driving mechanism and the above-mentioned gravity energy storage block, wherein the driving mechanism is used to drive the gravity energy storage block to rise.

[0016] The beneficial effects of the present invention are:

[0017] The gravity energy storage block provided by the present invention includes a convex energy storage unit, a concave energy storage unit and a stop structure. The convex energy storage unit is provided with a convex platform, and the concave energy storage unit is provided with a concave groove. The convex platform and the concave groove can be plugged together along a first direction to connect the convex energy storage unit and the concave energy storage unit. The stop structure is provided at the connection between the convex energy storage unit and the concave energy storage unit to limit the movement of the convex energy storage unit and the concave energy storage unit in the first direction. By making the gravity energy storage block consist of a convex energy storage unit and a concave energy storage unit, it is not only simple to manufacture and convenient for industrial production, but also more convenient to transport and transfer the convex energy storage unit and the concave energy storage unit compared to large-volume gravity energy storage blocks. At the same time, multiple convex energy storage units and concave energy storage units can be connected to each other to assemble into gravity energy storage blocks of different capacities, which can meet different energy storage needs. In addition, a stop structure is provided at the connection between the convex energy storage unit and the concave energy storage unit to stabilize the connection between the convex energy storage unit and the concave energy storage unit, thereby ensuring the stability of the gravity energy storage block during transportation and transfer.

[0018] The gravity energy storage system provided by the present invention is very convenient to transport and transfer the gravity energy storage blocks included therein, and the hoisting process is also very stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a gravity energy storage block provided by an embodiment of the present utility model;

[0020] Figure 2 It is a side view of the gravity energy storage block provided by an embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional view of a convex energy storage unit provided by an embodiment of the present utility model;

[0022] Figure 4 It is a cross-sectional view of a concave energy storage unit provided in an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Convex energy storage unit; 10. First main body structure; 11. Convex platform; 12. First retaining groove; 13. First axial longitudinal reinforcement; 14. First transverse stirrup;

[0025] 2. Concave energy storage unit; 20. Second main body structure; 21. Concave groove; 22. Second retaining groove; 23. Second axial longitudinal reinforcement; 24. Second transverse stirrup;

[0026] 3. Stop structure. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0031] like Figures 1 to 2 As shown, the present invention provides a gravity energy storage block, which includes a convex energy storage unit 1, a concave energy storage unit 2 and a stop structure 3. Among them, a convex platform 11 is provided on the convex energy storage unit 1, and a concave groove 21 is provided on the concave energy storage unit 2. The convex platform 11 and the concave groove 21 can be plugged together along a first direction to connect the convex energy storage unit 1 and the concave energy storage unit 2. In one embodiment, the first direction is as shown in FIG. Figure 2The stop structure 3 is provided at the connection between the convex energy storage unit 1 and the concave energy storage unit 2, so as to limit the relative movement of the convex energy storage unit 1 and the concave energy storage unit 2 in the first direction after the convex energy storage unit 1 and the concave energy storage unit 2 are connected.

[0032] Compared to the integrated, large-volume gravity energy storage block, the split gravity energy storage block composed of the convex energy storage unit 1 and the concave energy storage unit 2 is not only simple to manufacture and convenient for industrial production, but also more convenient to transport and transfer the convex energy storage unit 1 and the concave energy storage unit 2. At the same time, multiple convex energy storage units 1 and concave energy storage units 2 can be connected to each other to assemble gravity energy storage blocks of different capacities, which can meet different energy storage needs. In addition, a stop structure 3 is provided at the connection between the convex energy storage unit 1 and the concave energy storage unit 2. The stop structure 3 is used to stabilize the connection between the convex energy storage unit 1 and the concave energy storage unit 2, thereby ensuring the stability of the gravity energy storage block during transportation and transfer.

[0033] See also Figure 1 、 Figure 2 and Figure 3 The convex energy storage unit 1 includes a first main body structure 10 and a convex platform 11, and the convex platform 11 is provided at least at one end of the first main body structure 10 in the second direction. Figure 2 The Y direction is shown in the figure, which is perpendicular to the X direction.

[0034] The number of the convex platforms 11 can be one or more according to needs. When there are multiple convex platforms 11, the multiple convex platforms 11 can be located at the same end of the first main structure 10 or at both ends of the first main structure 10 in the second direction.

[0035] Specifically, when the convex energy storage unit 1 is located at the end of the gravity energy storage block in the second direction, the convex energy storage unit 1 only needs to be provided with a convex platform 11 at one end along the second direction; and when the convex energy storage unit 1 is located in the middle part of the gravity energy storage block, the convex energy storage unit 1 is provided with a convex platform 11 at both ends along the second direction.

[0036] Furthermore, the number of the convex platforms 11 on the same end surface can be set to one or more, and there is no limitation here. When the number of the convex platforms 11 is more than one, the connection between the convex energy storage unit 1 and the concave energy storage unit 2 can be made more stable. In this embodiment, Figure 1 As shown, there are two convex platforms 11 provided on the convex energy storage unit 1, one of which is provided in the middle area of ​​the upper end of the first main structure 10, and the other convex platform 11 is provided in the middle area of ​​the lower end of the first main structure 10.

[0037] Optionally, the cross-section of the first main structure 10 perpendicular to the first direction is a rectangle. Optionally, the cross-section of the convex platform 11 perpendicular to the first direction is a trapezoid. Of course, in other embodiments, the cross-section of the first main structure 10 perpendicular to the first direction and the cross-section of the convex platform 11 perpendicular to the first direction can also be other shapes, as long as the convex platform 11 and the concave groove 21 can be slidably connected in the first direction and limited in the splicing direction.

[0038] Optionally, the convex platform 11 is extended along the first direction. In one embodiment, both end surfaces of the convex platform 11 in the first direction are flush with both end surfaces of the first main structure 10 in the first direction.

[0039] To ensure the structural strength of the convex energy storage unit 1, particularly at the convex platform 11, the convex energy storage unit 1 of the present invention is made of concrete and internally provided with a first reinforcing structure. This first reinforcing structure ensures that the convex energy storage unit 1 has a high structural strength, particularly at the convex platform 11, which is less susceptible to fracture.

[0040] In some embodiments, as Figure 3 As shown, the first reinforcement structure includes first axial longitudinal bars 13 and first transverse stirrups 14. The first axial longitudinal bars 13 are rod-shaped, and each first axial longitudinal bar 13 extends along a first direction. The first transverse stirrups 14 are annular, and the first plane in which the first transverse stirrups 14 are located is perpendicular to the first direction. It should be noted that the first reinforcement structure may also include only the first axial longitudinal bars 13, or only the first transverse stirrups 14. Optionally, both the first axial longitudinal bars 13 and the first transverse stirrups 14 are steel bars.

[0041] In one embodiment, the contour of the first transverse stirrup 14 in the first plane is the same as the cross-sectional contour of the convex energy storage unit 1 perpendicular to the first direction, and the first axial longitudinal reinforcement 13 abuts and supports the inner side of the first transverse stirrup 14. This arrangement is conducive to further improving the structural strength of the convex energy storage unit 1.

[0042] In one embodiment, a plurality of first axial longitudinal reinforcements 13 and first transverse stirrups 14 are provided. This arrangement further improves the structural strength of the convex energy storage unit 1. The specific number of first axial longitudinal reinforcements 13 and first transverse stirrups 14 can be flexibly set according to needs.

[0043] Furthermore, a portion of the plurality of first axial longitudinal reinforcements 13 is located within the convex platform 11, with the remainder evenly distributed within the first main structure 10. Each first transverse stirrup 14 is partially located within the convex platform 11, with the remainder located within the first main structure 10. This arrangement strengthens both the convex platform 11 and the first main structure 10.

[0044] For example, Figure 3 As shown, eight first axial longitudinal bars 13 are provided, spaced along the outline of the first transverse stirrups 14. Two first axial longitudinal bars 13 are located within the two convex platforms 11, one in each convex platform 11. This allows the steel bar's inherent strength to withstand external gravity when the convex platform 11 is connected to the concave groove 21. The other six first axial longitudinal bars 13 are arranged in three rows and two columns within the first main structure 10. The six first axial longitudinal bars 13 are evenly distributed in the middle and two sides of the convex energy storage unit 1, leaving a certain concrete cover on the two side surfaces of the convex energy storage unit 1. No fewer than three first transverse stirrups 14 are spaced along the first direction.

[0045] The utility model also provides a convex energy storage unit 1 with a size structure and a manufacturing method:

[0046] The bottom surface of the first main structure 10 in the convex energy storage unit 1 is a square with a side length of 1m and a height of 2m. The whole structure is a rectangular parallelepiped. The top width of the convex platform 11 is 190mm, the bottom length is 90mm, and the height of the trapezoidal convex platform 11 is 95mm. There are 8 first axial longitudinal reinforcements 13 in the convex energy storage unit 1, with a diameter of 12mm, and 3 first transverse stirrups 14 with a diameter of 6mm, arranged along the first direction with a spacing of 400mm. The center of the first axial longitudinal reinforcement 13 inside the convex platform 11 is 30mm away from the bottom or top surface of the convex platform 11, and is distributed on the center line of the convex platform 11. During production, the first reinforcement structure is first made by tying the steel bars according to the steel bar drawings, and then, according to the design size and shape, suitable formwork materials (such as wooden formwork, steel formwork, etc.) are selected to assemble and fix the formwork. Finally, the concrete is poured. C20 concrete is preferred. The proportions of C20 concrete components are approximately 0.51:1:1.81:3.68 for water, cement, sand, and gravel. After pouring, appropriate curing should be performed based on the concrete type and environmental conditions to promote concrete strength development. Typically, the curing time is no less than 7 days.

[0047] See also Figure 1 、 Figure 2 and Figure 4 The concave energy storage unit 2 includes a second main body structure 20 and a concave groove 21. The concave groove 21 is provided at least at one end of the second main body structure 20 in the second direction.

[0048] The number of the concave grooves 21 can be set to one or more according to needs. When there are multiple concave grooves 21, the multiple concave grooves 21 can be located at the same end of the second main structure 20 or at both ends of the second main structure 20 in the second direction.

[0049] When the concave energy storage unit 2 is located at the end of the gravity energy storage block in the second direction, the concave energy storage unit 2 only needs to be provided with a concave groove 21 at one end along the second direction; and when the concave energy storage unit 2 is located in the middle part of the gravity energy storage block, the concave energy storage unit 2 is provided with concave grooves 21 at both ends along the second direction.

[0050] Furthermore, the number of concave grooves 21 on the same end surface can be set to one or more, and there is no limitation here. When the number of concave grooves 21 is more than one, the adjacent convex energy storage unit 1 and concave energy storage unit 2 can be connected through multiple one-to-one corresponding convex platforms 11 and concave grooves 21, making the connection between the two more stable. In this embodiment, Figure 1 As shown, there are two concave grooves 21 provided on the concave energy storage unit 2, one of which is provided in the middle area of ​​the upper end of the second main body structure 20, and the other concave groove 21 is provided in the middle area of ​​the lower end of the second main body structure 20.

[0051] Optionally, the cross-sectional shape of the second main structure 20 parallel to the first direction is a rectangle, and the cross-sectional shape perpendicular to the first direction is a rectangle minus the cross-sectional shape of the concave groove 21 perpendicular to the first direction. Optionally, the cross-sectional shape of the concave groove 21 perpendicular to the first direction is a trapezoid. Of course, in other embodiments, the cross-sectional shape of the first main structure 20 perpendicular to the first direction and the cross-sectional shape of the concave groove 21 perpendicular to the first direction can also be other shapes, as long as the convex platform 11 and the concave groove 21 can be slidably connected in the first direction and limited in the splicing direction.

[0052] The concave groove 21 extends along the first direction. In one embodiment, the concave groove 21 passes through both end surfaces of the second main structure 20 along the first direction. Figure 1 、 Figure 2 As shown, after the convex platform 11 and the concave groove 21 are plugged into each other along the first direction, the two end surfaces of the convex platform 11 in the first direction are flush with the two end surfaces of the second main body structure 20 in the first direction. To facilitate assembly, a clearance fit is adopted between the concave groove 21 and the convex platform 11. Optionally, a clearance of 5-20 mm is left between the two after installation.

[0053] To ensure the structural strength of the concave energy storage unit 2, particularly at the concave groove 21, the concave energy storage unit 2 of the present invention is made of concrete and internally provided with a second reinforcing structure. This second reinforcing structure provides the concave energy storage unit 2 with a high structural strength, particularly at the concave groove 21, which is less susceptible to damage.

[0054] In some embodiments, as Figure 4As shown, the second reinforcement structure includes second axial longitudinal bars 23 and second transverse stirrups 24. The second axial longitudinal bars 23 are rod-shaped, and each second axial longitudinal bar 23 extends along the first direction. The second transverse stirrups 24 are annular, and the second plane in which the second transverse stirrups 24 are located is perpendicular to the first direction. It should be noted that the second reinforcement structure may also include only the second axial longitudinal bars 23, or only the second transverse stirrups 24. Optionally, both the second axial longitudinal bars 23 and the second transverse stirrups 24 are steel bars.

[0055] In one embodiment, the second transverse stirrup 24 has a profile in the second plane that is identical to the cross-sectional profile of the concave energy storage unit 2 perpendicular to the first direction, and the second axial longitudinal reinforcement 23 abuts and supports the inner side of the second transverse stirrup 24. This arrangement helps further improve the structural strength of the concave energy storage unit 2.

[0056] In one embodiment, a plurality of second axial longitudinal bars 23 and second transverse stirrups 24 are provided. This arrangement helps further improve the structural strength of the concave energy storage unit 2. The specific number of the second axial longitudinal bars 23 and second transverse stirrups 24 can be flexibly set according to needs.

[0057] Furthermore, a portion of the plurality of second axial longitudinal bars 23 is located within the concave groove 21, with the remainder evenly distributed within the second main structure 20. Each second transverse stirrup 24 is partially located within the concave groove 21, with the remainder located within the second main structure 20. This arrangement strengthens both the concave groove 21 and the second main structure 20.

[0058] For example, Figure 4 As shown, eight second axial longitudinal bars 23 are provided, spaced along the contours of the second transverse stirrups 24. Two second axial longitudinal bars 23 are located near the two concave grooves 21, one at the bottom edge of each concave groove 21. This allows the steel bars to withstand external gravity when the concave grooves 21 are connected to the convex platform 11, relying on their inherent strength. The remaining six second axial longitudinal bars 23 are arranged in three rows and two columns within the second main structure 20. The six second axial longitudinal bars 23 are evenly distributed in the middle and two sides of the concave energy storage unit 2, leaving a certain distance from the two sides of the concave energy storage unit 2 for concrete pouring, thereby achieving a certain thickness of concrete cover. No fewer than three second transverse stirrups 24 are spaced along the first direction.

[0059] The utility model also provides a size structure and manufacturing method of a concave energy storage unit 2:

[0060] The projection shape of the second main structure 20 in the concave energy storage unit 2 in the plane perpendicular to the second direction is a square with a side length of 1m and a height of 2m. The whole is a rectangular parallelepiped structure. The opening width of the concave groove 21 is 100mm, the bottom length is 200mm, and the depth of the trapezoidal concave groove is 100mm. There are 8 second axial longitudinal reinforcements 23 in the concave energy storage unit 2, with a diameter of 12mm, and the second transverse stirrups 24 have a diameter of 6mm. 3 are arranged along the first direction with a spacing of 400mm. The center of the second axial longitudinal reinforcement 23 close to the concave groove 21 is 30mm away from the bottom surface of the concave groove 21, and is distributed on the center line of the concave groove 21. During production, the steel bars are first tied according to the steel bar drawings to complete the production of the second reinforcement structure. Then, according to the design size and shape, suitable formwork materials (such as wooden formwork, steel formwork, etc.) are selected to assemble and fix the formwork. Finally, concrete is poured. C20 concrete is preferred. The proportions of C20 concrete components are approximately 0.51:1:1.81:3.68 for water, cement, sand, and gravel. After pouring, appropriate curing should be performed based on the concrete type and environmental conditions to promote concrete strength development. Typically, the curing time is no less than 7 days.

[0061] Since the convex energy storage unit 1 and the concave energy storage unit 2 are movably connected, in order to prevent the two from moving in the first direction after connection, as shown in FIG. Figure 2 As shown, a stop structure 3 is further provided at the connection between the convex energy storage unit 1 and the concave energy storage unit 2. The number of stop structures 3 can be one or more, and there is no limitation here. In this embodiment, a stop structure 3 is provided at each of the two side surfaces adjacent to the mating surface of the convex platform 11 and the concave groove 21, thereby limiting the relative movement of the convex energy storage unit 1 and the concave energy storage unit 2 in the first direction.

[0062] In order to facilitate the installation of the stop structure 3, as Figure 1 and Figure 2As shown, the convex energy storage unit 1 is also provided with a first retaining groove 12. Specifically, the first retaining groove 12 is provided on the side surface of the first main structure 10 along the third direction and is provided at least one end of the first main structure 10 in the second direction, wherein the third direction is perpendicular to the first and second directions. The concave energy storage unit 2 is provided with a second retaining groove 22. Specifically, the second retaining groove 22 is provided on the side surface of the second main structure 20 along the third direction and is provided at at least one end of the second main structure 20 in the second direction, and corresponds to the position of the first retaining groove 12. When the convex energy storage unit 1 and the concave energy storage unit 2 are plugged into each other, the first retaining groove 12 and the second retaining groove 22 can be connected to each other, thereby allowing the retaining structure 3 to be installed in the first retaining groove 12 and the second retaining groove 22. By placing the retaining structure 3 in the first retaining groove 12 and the second retaining groove 22, the relative movement of the convex energy storage unit 1 and the concave energy storage unit 2 in the first direction can be limited.

[0063] Optionally, the retaining structure 3 is a retaining block having the same shape as the groove body formed by the first retaining groove 12 and the second retaining groove 22, and having a thickness equal to the depth of the groove body. This arrangement not only makes the connection smoother and more beautiful, but also avoids the risk of the retaining structure 3 being easily knocked off when placed on the outside, thereby preventing the convex energy storage unit 1 and the concave energy storage unit 2 from being retained in position.

[0064] Furthermore, in this embodiment, the stopper is bonded to the first and second stopper grooves 12 and 22 by adhesive. This connection method is simple, convenient, and low-cost. Of course, in other embodiments, the stopper can also be fixed to the first and second stopper grooves 12 and 22 by wedging wood blocks, steel nails, etc., without limitation.

[0065] In some parallel embodiments, the stopping structure 3 is a block structure having a stopping groove. In a third direction perpendicular to the first direction and the second direction, the convex energy storage unit 1 is provided with a first stopping protrusion protruding outward, and the concave energy storage unit 2 is provided with a second stopping protrusion protruding outward. The first stopping protrusion and the second stopping protrusion are arranged side by side, and the stopping structure is sleeved outside the first stopping protrusion and the second stopping protrusion to limit the movement of the convex energy storage unit 1 and the concave energy storage unit 2 in the first direction.

[0066] The present invention also discloses a gravity energy storage system, which includes an electric motor, a drive mechanism, and the gravity energy storage block described above. Optionally, the drive mechanism includes a crane, a support frame, a pulley block, and a cable. The electric motor provides the drive mechanism with the required electrical energy, which drives the gravity energy storage block upward through the drive mechanism. It should be noted that the specific structure of the drive mechanism and the connection relationship between the various components included therein are prior art and will not be described in detail here.

[0067] Specifically, during the energy storage process, the convex energy storage unit 1 is first transported to the installation lifting point of the gravity energy storage block, and then the lifting point is connected to the convex energy storage unit 1, and the driving mechanism is used to lift the convex energy storage unit 1 to a certain height to leave installation space for the concave energy storage unit 2; then the concave energy storage unit 2 is transferred and installed by a transfer trolley or a forklift. During installation, the concave energy storage unit 2 is sent to the convex platform 11 of the convex energy storage unit 1 along the first direction to ensure that the convex platform 11 at the bottom of the convex energy storage unit 1 is nested into the concave energy storage unit. The first stop groove 12 and the second stop groove 22 are aligned in the concave groove 21 at the top of the unit 2, and the two ends are aligned along the first direction. Then, the stop structure 3 is installed and fixed with structural adhesive during installation to prevent the stop structure 3 from falling out, ensuring that the gravity energy storage block can be locked. Finally, according to the energy storage requirements of the gravity energy storage block, the target number of convex energy storage units 1 and concave energy storage units 2 are installed alternately in the set order until the quantity requirements are met. By using the gravity energy storage block of the utility model for hoisting, not only is transportation and transfer convenient, but the hoisting process is also very safe and stable.

[0068] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A gravity energy storage block, characterized in that: include: A convex energy storage unit (1), wherein a convex platform (11) is provided on the convex energy storage unit (1); A concave energy storage unit (2), wherein a concave groove (21) is provided on the concave energy storage unit (2), and the convex platform (11) and the concave groove (21) can be plugged together along a first direction to connect the convex energy storage unit (1) and the concave energy storage unit (2); A stop structure (3) is connected to both the convex energy storage unit (1) and the concave energy storage unit (2) to limit the movement of the convex energy storage unit (1) and the concave energy storage unit (2) in the first direction.

2. The gravity energy storage block according to claim 1, characterized in that: The convex energy storage unit (1) is provided with the convex platform (11) at both ends in the second direction, and the concave energy storage unit (2) is provided with the concave groove (21) at both ends in the second direction. The convex energy storage unit (1) and the concave energy storage unit (2) can be alternately connected in the second direction, and the second direction is perpendicular to the first direction.

3. The gravity energy storage block according to claim 1, characterized in that: The convex energy storage unit (1) is further provided with a first retaining groove (12), and the concave energy storage unit (2) is provided with a second retaining groove (22) corresponding to the first retaining groove (12), the first retaining groove (12) and the second retaining groove (22) are communicated with each other, and the retaining structure (3) is installed in a groove body formed by the first retaining groove (12) and the second retaining groove (22).

4. The gravity energy storage block according to claim 3, characterized in that: The stop structure (3) is bonded to the groove body via colloid.

5. The gravity energy storage block according to claim 1, characterized in that: A first reinforcement structure is provided in the convex energy storage unit (1), the first reinforcement structure comprising a first axial longitudinal rib (13) and / or a first transverse stirrup (14), the first axial longitudinal rib (13) extending along the first direction, and a first plane on which the first transverse stirrup (14) is located being perpendicular to the first direction; And / or, a second reinforcement structure is provided in the concave energy storage unit (2), the second reinforcement structure comprising second axial longitudinal reinforcements (23) and / or second transverse stirrups (24), the second axial longitudinal reinforcements (23) extending along the first direction, and the second plane where the second transverse stirrups (24) are located is perpendicular to the first direction.

6. The gravity energy storage block according to claim 5, characterized in that: A plurality of the first axial longitudinal reinforcements (13) are provided, and the plurality of the first axial longitudinal reinforcements (13) are supported against the inner side of the first transverse stirrups (14) and are spaced apart along the outline of the first transverse stirrups (14); And / or, a plurality of the second axial longitudinal reinforcements (23) are provided, and the plurality of the second axial longitudinal reinforcements (23) are supported on the inner side of the second transverse stirrups (24) and are spaced apart along the contour of the second transverse stirrups (24).

7. The gravity energy storage block according to claim 5, characterized in that: The contour shape of the first transverse stirrup (14) in the first plane is the same as the cross-sectional contour shape of the convex energy storage unit (1) perpendicular to the first direction; And / or, a plurality of first transverse stirrups (14) are arranged at intervals along the first direction; And / or, the contour shape of the second transverse stirrup (24) in the second plane is the same as the cross-sectional contour shape of the concave energy storage unit (2) perpendicular to the first direction; And / or, a plurality of the second transverse stirrups (24) are arranged at intervals along the first direction.

8. The gravity energy storage block according to any one of claims 1 to 7, characterized in that: The adjacently arranged convex energy storage units (1) and the concave energy storage units (2) are connected via a plurality of one-to-one corresponding convex platforms (11) and concave grooves (21).

9. The gravity energy storage block according to any one of claims 1 to 7, characterized in that: The cross-sectional shape of the convex platform (11) perpendicular to the first direction and the cross-sectional shape of the concave groove (21) perpendicular to the first direction are both trapezoidal.

10. A gravity energy storage system, characterized in that: It comprises a motor, a driving mechanism and a gravity energy storage block according to any one of claims 1 to 9, wherein the motor provides the driving mechanism with the electric energy required for operation, and the driving mechanism is used to drive the gravity energy storage block to rise.

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