Weight block connecting structure with stable output and gravity energy storage system

Abstract

The utility model provides a weight block connecting structure with stable output and a gravity energy storage system, the weight block connecting structure with stable output comprises a weight block body and a converter, the weight block body comprises a first connecting part, and one end, facing the weight block body, of the converter is provided with a second connecting part; the weight block body is detachably connected with the converter through the first connecting part and the second connecting part. The weight block connecting structure with stable output can be applied to a gravity energy storage system, and electric energy output by the whole system is stable and continuous; through cooperation of the first connecting part and the second connecting part, the weight block body and the converter can be in butt joint rapidly and stably, and the operation efficiency of the whole system is guaranteed. According to the weight block connecting structure stable in output, due to the fact that an original bearing mechanism is omitted, sudden change of instantaneous bearing capacity is reduced, meanwhile, a device for transferring the bearing mechanism is omitted, the system operation efficiency can be improved, and use of the device is reduced.

Description

Technical Field

[0001] This application relates to the field of gravity energy storage technology, and in particular to a stable output weight block connection structure and gravity energy storage system. Background Technology

[0002] Gravity energy storage is a method of storing energy using gravitational potential energy. Its basic principle is to lift gravity-generating blocks to a high place to store energy, and when energy needs to be released, these gravity-generating blocks are lowered to drive a generator to generate electricity.

[0003] In existing gravity energy storage devices, the transportation of heavy blocks relies on a support mechanism. This reliance on the support mechanism for loading and unloading introduces several unavoidable problems: First, sudden changes in driving force. In current technology, the loading and unloading of heavy blocks are discrete events, meaning that the blocks may suddenly be attached to or detached from the support mechanism at any given moment, causing a sudden change in the driving force on the support mechanism and consequently reducing the fatigue life of the mechanical system. Second, discontinuous operation. Loading and unloading heavy blocks typically require the system to pause to complete the mechanical operation, reducing the system's continuous operation capability and overall efficiency. Third, unstable output power. Due to the asynchronous loading and unloading of heavy blocks, fluctuations in driving force occur, leading to unstable output power.

[0004] Therefore, a stable output weight block connection structure needs to be designed to solve the above problems. Utility Model Content

[0005] In view of this, in order to overcome the defects of the prior art, this utility model provides a stable output heavy block connection structure and gravity energy storage system, which effectively solves the problem that the transportation of heavy blocks in existing gravity energy storage devices needs to be realized by a bearing mechanism. Relying on the bearing mechanism to realize loading and unloading will cause the entire gravity energy storage device to have unavoidable sudden changes in driving force, discontinuous operation and unstable output power.

[0006] According to a first aspect of the present invention, a stable output weight block connection structure is provided for a gravity energy storage system. The gravity energy storage system includes a first steel cable operating part, a second steel cable operating part, and a transfer track. The stable output weight block connection structure includes a weight block body and a converter. The weight block body includes a first connecting part. The converter has a second connecting part at one end facing the weight block body. The weight block body is detachably connected to the converter through the first connecting part and the second connecting part. The converter includes a conversion part that can slide on the transfer track to connect the converter to either the first steel cable operating part or the second steel cable operating part.

[0007] Preferably, the first connecting portion is disposed inside the weight block body. The first connecting portion includes a receiving space and a snap-fit ​​position. The receiving space is recessed into the inside of the weight block body from the side of the weight block body facing the converter. The snap-fit ​​position is recessed from the end face of the receiving space in a direction away from the receiving space.

[0008] Preferably, the second connecting part includes a snap-fit ​​component, the snap-fit ​​component includes a mating block and a snap-fit ​​block, the mating block is formed into a triangular support structure, and the snap-fit ​​block is provided at the end of the triangular support structure. When the first connecting part and the second connecting part are mated, the mating block is accommodated in the accommodating space, and the snap-fit ​​block is snapped into the snap-fit ​​position.

[0009] Preferably, there are multiple accommodating spaces, multiple snap-fit ​​positions, and multiple snap-fit ​​components, and the multiple accommodating spaces and multiple snap-fit ​​positions are arranged in a one-to-one correspondence with the multiple snap-fit ​​components.

[0010] Preferably, the triangular support structure includes a first abutting surface, an inclined connecting surface, and a triangular support column. The end of the inclined connecting surface coincides with the end of the first abutting surface. The triangular support column is disposed between the inclined connecting surface and the first abutting surface. The snap-fit ​​block is disposed at the end of the first abutting surface that coincides with the inclined connecting surface. When the first connecting part and the second connecting part are mated, the first abutting surface abuts against the inner wall of the accommodating space.

[0011] Preferably, the size of the accommodating space is larger than the size of the mating block; the accommodating space includes a sliding ramp, a second abutting surface, and a vertical locking surface, the sliding ramp is connected to the vertical locking surface, the vertical locking surface extends from the end of the sliding ramp to the end of the locking position, and the second abutting surface is connected to the locking position; when the first connecting part and the second connecting part are mated, the first abutting surface abuts against the second abutting surface, and the outer wall of the locking block abuts against the vertical locking surface.

[0012] Preferably, the first connecting part includes a reinforcing member located inside the weight block body and a hook member extending out of the weight block body, and the second connecting part has a hook groove, the hook member being able to be engaged in the hook groove.

[0013] Preferably, the reinforcing member includes multiple mating portions and multiple bending portions, the bending portions being disposed at the ends of the mating portions, and two adjacent mating portions being connected by one bending portion; the hook member is disposed in the middle of the reinforcing member.

[0014] Preferably, a sliding wheel is provided at the end of the conversion part.

[0015] According to a second aspect of the present invention, a gravity energy storage device is provided, wherein the gravity energy storage system includes a weight block connection structure with stable output as described above.

[0016] According to the stable output weight block connection structure of this utility model, the cooperation between the weight block body and the converter enables the structure to be applied to a gravity energy storage system, ensuring a stable and continuous output of electrical energy from the entire system. The cooperation between the first and second connecting parts allows the weight block body and the converter to connect quickly and stably, guaranteeing the overall system operating efficiency. This stable output weight block connection structure eliminates the need for a traditional load-bearing mechanism by directly connecting the weight block body to the converter, thus further reducing sudden changes in instantaneous load-bearing capacity. This transforms the action of the weight block body entering the system into a continuous action, while also eliminating the need for a transfer load-bearing mechanism, thereby improving system operating efficiency and reducing the use of additional equipment.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the weight block connection structure according to a first embodiment of the present invention is shown.

[0020] Figure 2 A cross-sectional view of the weight block connection structure according to a first embodiment of the present invention is shown;

[0021] Figure 3 A schematic diagram of the structure of the weight block body according to a first embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of the first connecting portion according to a first embodiment of the present invention is shown;

[0023] Figure 5 A schematic diagram of the structure of the weight block body according to a second embodiment of the present invention is shown;

[0024] Figure 6 This diagram shows a structural schematic of the first connecting portion according to a second embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the structure of a gravity energy storage system according to an embodiment of the present invention is shown;

[0026] Figure 8 Embodiments according to the present invention are shown. Figure 7 An enlarged schematic diagram of the structure at point A in the middle.

[0027] Reference numerals: 1-Weight block body; 102-Accommodation space; 103-Snap-fit ​​position; 104-Sliding inclined surface; 105-Second abutment surface; 106-Vertical snap-fit ​​surface; 107-Hook; 108-Bending part; 109-Matching part; 2-Converter; 201-Second connecting part; 203-Connecting block; 204-Snap-fit ​​block; 205-First abutment surface; 206-Inclined connecting surface; 207-Triangular support column; 208-Sliding wheel; 3-First steel cable operating part; 4-Second steel cable operating part; 5-Transfer track. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] According to a first aspect of this utility model, a stable output weight block connection structure is provided, such as... Figures 1 to 6 As shown, this stable output heavy block connection structure is used in gravity energy storage systems, such as... Figure 7 and Figure 8 As shown, the gravity energy storage system may include a first steel cable operating unit 3, a second steel cable operating unit 4, and a transfer track 5. This gravity energy storage system is a dual-steel cable switching system, capable of achieving stable power generation during the power generation process. To facilitate stable and continuous power generation, the output-stable weight block connection structure can be applied to this gravity energy storage system. This output-stable weight block connection structure includes a weight block body 1 and a converter 2.

[0033] In the following description, reference will be made to Figures 1 to 6 This section describes the detailed structure of the weight block body 1 and the converter 2 in the weight block connection structure with stable output.

[0034] like Figure 1 and Figure 2 As shown in the embodiment, in the original structure, the heavy block body 1 needs to be connected to the converter 2 through a supporting mechanism. To improve the transportation efficiency of the connection of the heavy block body 1, the supporting mechanism is eliminated through structural improvement, allowing the heavy block body 1 and the converter 2 to be directly connected. Specifically, the heavy block body 1 may include a first connecting part, and the converter 2 has a second connecting part 201 at one end facing the heavy block body 1. The heavy block body 1 is detachably connected to the converter 2 through the first connecting part and the second connecting part 201. By improving the docking structure of the heavy block body 1 and the converter 2 respectively, the two can achieve rapid docking while ensuring connection strength.

[0035] Furthermore, the converter 2 includes a conversion unit that can slide on the transfer track 5 to connect the converter 2 to either the first cable operating unit 3 or the second cable operating unit 4. Figure 1As shown, the conversion part of the converter 2 is located on the side closest to the paper. The conversion part can include three sections: a movable part in the middle and two clamping parts on either side. There are receiving positions for accommodating steel cables between the movable part and the two clamping parts. A sliding wheel 208 is provided at the end of the movable part, allowing it to slide on the transfer track 5. Since the transfer track 5 in the gravity energy storage system is not a single vertical track, but rather a combination of inclined and vertical tracks, as the sliding wheel 208 slides on the transfer track 5, the movable part moves closer to the left or right clamping part at different positions, thereby clamping the movable part with one of the clamping parts to either the first steel cable operating part 3 or the second steel cable operating part 4. The movable part can be made of a soft material, such as soft polyurethane. In this way, the converter 2 can connect to the first steel cable operating part 3 or the second steel cable operating part 4 at different positions via the transfer track 5, realizing the output conversion of the weight block body 1 connected to the converter 2.

[0036] To clarify, here is a brief description of the operating principle of the double steel cable system: See Figure 7 and Figure 8 The first cable operating unit 3 is always at a constant speed. The second cable operating unit 4, driven by an external motor, can increase its speed from zero to the same speed as the first cable operating unit 3, and then decrease it back to zero. Before receiving the weight block 1, the converter 2 is clamped to the second cable operating unit 4 via a movable part and a clamping part. When receiving the weight block 1, the speed of the second cable operating unit 4 is zero, and the weight block 1 and the converter 2 are connected. The speed of the second cable operating unit 4, driven by an external motor, gradually increases to the same speed as the first cable operating unit 3. At this time, the weight block 1 has descended, and the sliding wheel 208 slides along the transfer track 5. Since the transfer track 5 has different positions of the track (such as... Figure 8The track located in the lower part of the diagram (with a bend) causes the moving part to gradually approach another clamping part, eventually clamping the first steel cable operating part 3 with the other clamping part, thus transferring the weight block 1 from the second steel cable operating part 4 to the first steel cable operating part 3. The advantages of this are: since the first steel cable operating part 3 is always at a constant speed, the output electrical energy remains stable; since the second steel cable operating part 4 is speed-adjustable, the loading or unloading of the weight block 1 is continuous at the moment of receiving it, avoiding sudden changes in the instantaneous load-bearing capacity of the weight block 1 and thus preventing interference with power generation. In the entire system, the docking of the weight block 1 with the converter 2 eliminates the need for the original load-bearing mechanism, further reducing sudden changes in instantaneous load-bearing capacity. This transforms the movement of the weight block 1 into a continuous movement, while also eliminating the need for a transfer load-bearing mechanism, improving transfer efficiency and reducing the use of additional equipment.

[0037] The stable output weight block connection structure, through the cooperation of the weight block body 1 and the converter 2, enables the structure to be applied to the gravity energy storage system and makes the electrical energy output of the entire system stable and continuous. Through the cooperation of the first connection part and the second connection part 201, the weight block body 1 and the converter 2 can be quickly and stably connected, ensuring the operating efficiency of the entire system.

[0038] In the embodiments, two structures of the first connecting part and the second connecting part 201 are shown, and the two different structures are described separately below.

[0039] Preferably, such as Figure 2 and Figure 3 As shown, in the first embodiment, the first connecting portion is disposed inside the weight block body 1. The first connecting portion includes a receiving space 102 and a snap-fit ​​position 103. The receiving space 102 is recessed into the interior of the weight block body 1 from the side of the weight block body 1 facing the converter 2, that is, the first connecting portion is disposed inside the weight block body 1. The snap-fit ​​position 103 is recessed from the end face of the receiving space 102 in a direction away from the receiving space 102, and the snap-fit ​​position 103 is additionally disposed on the other side of the receiving space 102. The receiving space 102 is used to receive the docking block 203 described below, and the snap-fit ​​position 103 is used to receive the snap-fit ​​block 204.

[0040] Preferably, such as Figure 2 and Figure 4As shown, in the first embodiment, the second connecting portion 201 includes a snap-fit ​​component, which includes a mating block 203 and a snap-fit ​​block 204. The mating block 203 is formed as a triangular support structure, and the snap-fit ​​block 204 is provided at the end of the triangular support structure. When the first connecting portion and the second connecting portion 201 are mated, the mating block 203 is accommodated in the accommodating space 102, and the snap-fit ​​block 204 is snapped into the snap-fit ​​position 103. The triangular support structure can effectively improve the support strength while reducing the weight.

[0041] Preferably, such as Figures 2 to 4 As shown, in the first embodiment, to ensure the quality and strength of the docking, there are multiple accommodating spaces 102, multiple snap-fit ​​positions 103, and multiple snap-fit ​​pieces. Each accommodating space 102 and each snap-fit ​​position 103 corresponds one-to-one with a snap-fit ​​piece. That is, one accommodating space 102 is used to accommodate one docking block 203, and one snap-fit ​​position 103 is used to accommodate one snap-fit ​​block 204. In this embodiment, there are two accommodating spaces 102, two snap-fit ​​positions 103, and two snap-fit ​​pieces.

[0042] Preferably, such as Figures 2 to 4 As shown, in the first embodiment, the triangular support structure may include a first abutment surface 205, an inclined connecting surface 206, and a triangular support column 207. The end of the inclined connecting surface 206 coincides with the end of the first abutment surface 205, and the triangular support column 207 is disposed between the inclined connecting surface 206 and the first abutment surface 205 to support both. A snap-fit ​​block 204 is disposed at the end of the first abutment surface 205 that coincides with the inclined connecting surface 206; it is used to snap into the snap-fit ​​position 103. When the first connecting portion and the second connecting portion 201 are mated, the first abutment surface 205 abuts against the inner wall of the accommodating space 102.

[0043] Preferably, such as Figures 2 to 4As shown, in the first embodiment, the size of the accommodating space 102 is larger than the size of the docking block 203 for ease of docking. The accommodating space 102 includes a sliding ramp 104, a second abutment surface 105, and a vertical locking surface 106. The sliding ramp 104 is connected to the vertical locking surface 106, which extends from the end of the sliding ramp 104 to the end of the locking position 103. The second abutment surface 105 is connected to the locking position 103. When the first connecting part and the second connecting part 201 are docked, the first abutment surface 205 abuts against the second abutment surface 105, and the outer wall of the locking block 204 abuts against the vertical locking surface 106. During docking, the locking member first extends entirely into the accommodating space 102, and then the locking block 204 is aligned with the locking position 103 to complete the docking. Afterwards, the weight block body 1 is separated from the conveying track and moves downward under the influence of gravity. At this time, the locking block 204 can lock into the locking position 103, and the first abutting surface 205 abuts against the second abutting surface 105, completing the docking of the converter 2 and the weight block body 1.

[0044] Preferably, such as Figure 5 and Figure 6 As shown, in the second embodiment, the first connecting part includes a reinforcing member located inside the weight block body 1 and a hook member 107 extending out of the weight block body 1. The second connecting part 201 has a hook groove (not shown, its shape matches the hook member 107), and the hook member 107 can be engaged in the hook groove. In the first embodiment, a snap-fit ​​position 103 is provided inside the weight block body 1, while in the second embodiment, an additional hook structure is used. The hook structure can be integrally cast with the weight block body 1, or the weight block body 1 can be made of concrete, while the hook structure can be made of steel bars, and the two can form a reinforced concrete structure.

[0045] Preferably, such as Figure 5 and Figure 6 As shown, in the second embodiment, the reinforcing member may include a plurality of bent portions 108 and a plurality of mating portions 109. The bent portions 108 are disposed at the ends of the mating portions 109, and two adjacent mating portions 109 are connected by a bent portion 108. Figure 6 As shown, the mating part 109 and the bending part 108 can be formed into a serpentine structure to enhance their connection strength inside the weight block body 1. The hook 107 is provided in the middle of the reinforcing member to ensure the connection stability of the weight block body 1.

[0046] This stable output heavy block connection structure, through the cooperation of the heavy block body and the converter, enables its application in gravity energy storage systems, ensuring a stable and continuous output of electrical energy. The cooperation of the first and second connecting parts allows for rapid and stable docking between the heavy block body and the converter, guaranteeing the overall system's operational efficiency. Because the docking of the heavy block body and the converter eliminates the need for a traditional load-bearing mechanism, this stable output heavy block connection structure further reduces sudden changes in instantaneous load-bearing capacity. This transforms the action of the heavy block body entering the system into a continuous motion, while also eliminating the need for a transfer load-bearing mechanism, thus improving system efficiency and reducing the number of devices required.

[0047] In addition, such as Figure 7 and Figure 8 As shown, according to a second aspect of this utility model, a gravity energy storage system is provided, comprising a stable output weight block connection structure as described above. The operating principle of this gravity energy storage system is as described above and will not be repeated here. During operation, the gravity energy storage system, through the stable output weight block connection structure as described above, enables rapid docking of the weight block body 1 and the converter 2, improving the system's operating efficiency and stability.

[0048] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A stable output weight block connection structure for a gravity energy storage system, the gravity energy storage system comprising a first steel cable operating unit, a second steel cable operating unit, and a transfer track, characterized in that, The stable output weight block connection structure includes a weight block body and a converter. The weight block body includes a first connecting part, and the converter has a second connecting part at one end facing the weight block body. The weight block body is detachably connected to the converter through the first connecting part and the second connecting part. The converter includes a conversion section that is slidable on the transfer track to connect the converter to either the first cable operating section or the second cable operating section.

2. The stable output weight block connection structure according to claim 1, characterized in that, The first connecting part is disposed inside the weight block body. The first connecting part includes a receiving space and a snap-fit ​​position. The receiving space is recessed into the inside of the weight block body from the side of the weight block body facing the converter. The snap-fit ​​position is recessed from the end of the receiving space in a direction away from the receiving space.

3. The stable output weight block connection structure according to claim 2, characterized in that, The second connecting part includes a snap-fit ​​component, which includes a mating block and a snap-fit ​​block. The mating block is formed as a triangular support structure, and the snap-fit ​​block is provided at the end of the triangular support structure. When the first connecting part and the second connecting part are mated, the mating block is accommodated in the accommodating space, and the snap-fit ​​block is snapped into the snap-fit ​​position.

4. The stable output weight block connection structure according to claim 3, characterized in that, The number of accommodating spaces, the number of snap-fit ​​positions, and the number of snap-fit ​​components are all multiple, and the multiple accommodating spaces and multiple snap-fit ​​positions are arranged in a one-to-one correspondence with the multiple snap-fit ​​components.

5. The stable output weight block connection structure according to claim 3, characterized in that, The triangular support structure includes a first abutting surface, an inclined connecting surface, and a triangular support column. The end of the inclined connecting surface coincides with the end of the first abutting surface. The triangular support column is disposed between the inclined connecting surface and the first abutting surface. The snap-fit ​​block is disposed at the end of the first abutting surface that coincides with the inclined connecting surface. When the first connecting part and the second connecting part are mated, the first abutting surface abuts against the inner wall of the accommodating space.

6. The stable output weight block connection structure according to claim 5, characterized in that, The size of the accommodating space is larger than the size of the docking block; The accommodating space includes a sliding ramp, a second abutment surface, and a vertical locking surface. The sliding ramp is connected to the vertical locking surface, and the vertical locking surface extends from the end of the sliding ramp to the end of the locking position. The second abutment surface is connected to the locking position. When the first connecting part and the second connecting part are mated, the first abutment surface abuts against the second abutment surface, and the outer wall of the locking block abuts against the vertical locking surface.

7. The stable output weight block connection structure according to claim 1, characterized in that, The first connecting part includes a reinforcing member located inside the weight block body and a hook member extending out of the weight block body. The second connecting part has a hook groove, and the hook member can be engaged in the hook groove.

8. The stable output weight block connection structure according to claim 7, characterized in that, The reinforcing member includes multiple mating parts and multiple bending parts, the bending parts being disposed at the ends of the mating parts, and two adjacent mating parts being connected through one bending part; The hook is located in the middle of the reinforcing member.

9. The stable output weight block connection structure according to claim 1, characterized in that, The end of the conversion unit is provided with a sliding wheel.

10. A gravity energy storage system, characterized in that, The gravity energy storage system includes a stable weight block connection structure as described in any one of claims 1 to 9.

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