Photovoltaic flexible support cable-stayed foundation and photovoltaic flexible support system

Abstract

The application discloses a photovoltaic flexible support cable-stayed foundation and a photovoltaic flexible support system, and relates to the technical field of photovoltaic equipment.The photovoltaic flexible support cable-stayed foundation comprises a bottom plate, a vertical plate, a first rib plate, a second rib plate and an anchoring plate, the bottom plate is used for being laid on the bottom of a foundation pit, the vertical plate is vertically arranged and fixedly connected with the bottom plate, the vertical plate is used for being closely attached to the side wall of the foundation pit, the first rib plate is arranged on the side of the vertical plate away from the bottom plate and is used for being inserted into the side wall of the foundation pit, the second rib plate is arranged on the same side of the vertical plate as the bottom plate and is fixedly connected with the bottom plate and the vertical plate, the anchoring plate is arranged on the same side of the vertical plate as the bottom plate, and the anchoring plate is used for anchoring a cable-stayed cable penetrating through the ground and the vertical plate.The photovoltaic flexible support cable-stayed foundation is convenient to construct and short in construction period, the stability of the cable-stayed foundation can be ensured, and the number of connecting nodes is small, and the connecting reliability is high.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, specifically to a photovoltaic flexible support inclined foundation and a photovoltaic flexible support system. Background Technology

[0002] Commonly used cable-stayed foundations for photovoltaic flexible support systems include pile foundations and gravity spread foundations. Pile foundations and gravity spread foundations rely on the elastic resistance of the foundation soil to the piles and the weight of the foundation itself, respectively, to resist the loads from the superstructure transmitted by the stay cables. Pile foundations require high strength and stability of the soil around the piles, while gravity spread foundations, to meet the requirements for uplift and horizontal loads, have high requirements for their own volume and foundation bearing capacity, necessitating the excavation of large-volume foundation pits, resulting in severe excavation of the foundation soil. During the construction of pile foundations and gravity spread foundations, it is common to pour concrete mortar into the foundation pit to ensure the stability of the bottom of the cable-stayed foundation. However, the grouting process is cumbersome and time-consuming. The stay cables and the grouting foundation need to be connected by other connectors. Problems in any of these three components—the grouting foundation, the connection between the grouting foundation and the connectors, or the connection between the stay cables and the connectors—will affect the reliability of the cable-stayed foundation connection, resulting in poor connection reliability. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, this invention proposes a flexible photovoltaic support cable-stayed foundation, which is convenient to construct and has strong connection reliability.

[0005] This invention also proposes a flexible photovoltaic support system.

[0006] The photovoltaic flexible support inclined cable foundation of this invention includes:

[0007] A base plate and vertical plates, wherein the base plate is used to be laid at the bottom of the foundation pit, and the vertical plates are perpendicular to and fixedly connected to the base plate, and the vertical plates are used to be tightly attached to the side wall of the foundation pit;

[0008] The first rib is provided on the side of the vertical plate away from the bottom plate and is provided at intervals. The first rib is used to be inserted into the side wall of the foundation pit.

[0009] The second rib plate is located on the same side of the vertical plate as the bottom plate and is provided in multiple rib plates at intervals. The second rib plate is fixedly connected to the bottom plate and the vertical plate.

[0010] An anchor plate, wherein the anchor plate and the base plate are located on the same side of the vertical plate and the anchor plate is located between two adjacent second rib plates, the anchor plate being used to anchor the stay cable passing through the foundation soil and the vertical plate.

[0011] The photovoltaic flexible support cable-stayed foundation of this invention uses a base plate and a vertical plate as the cable-stayed foundation and is set in the foundation pit. It is easy to construct and has a short construction period. The base plate and the vertical plate are arranged in an L-shape on the vertical surface. The force on the vertical plate and the base plate in the foundation pit is balanced by the force of the cable-stayed cable acting on the anchor plate, which ensures the stability of the cable-stayed foundation. The cable-stayed cable passes through the foundation soil and the vertical plate and is directly anchored to the anchor plate. There are few connection nodes and the connection reliability is strong.

[0012] In some embodiments, the first rib is arranged horizontally and perpendicular to the vertical plate.

[0013] In some embodiments, the second rib is vertically arranged and perpendicular to the vertical plate.

[0014] In some embodiments, the second rib is a triangular plate, and the sides corresponding to the two right-angled sides of the second rib are fixedly connected to the vertical plate and the bottom plate, respectively.

[0015] In some embodiments, at least one side of the second rib is provided with a second reinforcing rib, the end of the second reinforcing rib extends to the connection between the bottom plate and the vertical plate, and the second reinforcing rib is provided at an angle to the vertical plate.

[0016] In some embodiments, the base plate and the vertical plate are integrally formed.

[0017] In some embodiments, the anchor plate is inclined and forms an angle with the vertical plate.

[0018] In some embodiments, the vertical plate is provided with a through hole for the stay cable to pass through, and the through hole is located at the center of the vertical plate.

[0019] In some embodiments, a protective sleeve is provided inside the through hole for the stay cable to pass through.

[0020] The photovoltaic flexible support system of this invention includes a photovoltaic flexible support, a stay cable, and a photovoltaic flexible support stay foundation of any of the above embodiments. The photovoltaic flexible support and the photovoltaic flexible support stay foundation are connected by the stay cable. Attached Figure Description

[0021] Figure 1 This is a first-view structural schematic diagram of the photovoltaic flexible support inclined foundation according to an embodiment of the present invention.

[0022] Figure 2 This is a second-view structural schematic diagram of the photovoltaic flexible support inclined foundation according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the photovoltaic flexible support inclined foundation in use according to an embodiment of the present invention.

[0024] Figure label:

[0025] Base plate 1;

[0026] Vertical plate 2; Through hole 21; Protective sleeve 22;

[0027] First rib 3; First reinforcing rib 31;

[0028] Second rib 4; Second reinforcing rib 41;

[0029] Anchor plate 5; Support plate 51;

[0030] Foundation Pit 6;

[0031] 7 cable-stayed cables;

[0032] Foundation soil 8;

[0033] 9. Backfill soil. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the photovoltaic flexible support inclined foundation of this embodiment includes a base plate 1 and a vertical plate 2, a first rib 3, a second rib 4 and an anchor plate 5. The base plate 1 is used to lay at the bottom of the foundation pit 6. The vertical plate 2 is vertically arranged and fixedly connected to the base plate 1. The vertical plate 2 is used to be tightly attached to the side wall of the foundation pit 6. The first rib 3 is arranged on the side of the vertical plate 2 away from the base plate 1 and is spaced apart. The first rib 3 is used to be inserted into the side wall of the foundation pit 6. The second rib 4 is located on the same side of the vertical plate 2 as the base plate 1 and is spaced apart. The second rib 4 is fixedly connected to the base plate 1 and the vertical plate 2. The anchor plate 5 is located on the same side of the vertical plate 2 as the base plate 1 and is located between two adjacent second rib 4. The anchor plate 5 is used to anchor the inclined cable 7 that passes through the foundation soil 8 and the vertical plate 2.

[0036] In the use of the photovoltaic flexible support inclined foundation of this embodiment, the inclined foundation is first hoisted to the bottom of the pit 6, so that the first rib plate 3 passes through the side wall of the pit 6. Then, the inclined cable 7 passes through the foundation soil 8 and the vertical plate 2 and is anchored on the anchor plate 5. Appropriate pretension is applied to the inclined cable 7. Then, the backfill soil 9 is filled into the entire pit 6 and compacted. Finally, the inclined cable 7 is passively tensioned, and the entire inclined foundation is subjected to force in concert, so that the load in the inclined cable 7 is evenly transferred to the foundation soil 8.

[0037] The photovoltaic flexible support cable-stayed foundation of this invention uses a base plate 1 and a vertical plate 2 as the cable-stayed foundation and is set in the foundation pit 6. It is easy to construct and has a short construction period. The base plate 1 and the vertical plate 2 form an L-shape on the vertical surface. The force on the vertical plate 2 and the base plate 1 in the foundation pit 6 balances the force on the anchor plate 5 of the cable stay 7, ensuring the stability of the cable-stayed foundation. The cable stay 7 passes through the foundation soil 8 and the vertical plate 2 and is directly anchored to the anchor plate 5. There are few connection nodes and the connection reliability is strong.

[0038] In some embodiments, such as Figure 1 and Figure 3 As shown, the first rib 3 is horizontally positioned and perpendicular to the vertical plate 2.

[0039] The first rib 3 is set horizontally and perpendicular to the vertical plate 2, which makes it easy to insert the first rib 3 into the side wall of the foundation pit 6 and facilitates installation. At the same time, the horizontally set first rib 3 can increase the relative stress points and stress area of ​​the vertical plate 2 during use, thereby increasing the stability and connection reliability of the inclined tie foundation during use.

[0040] In some embodiments, such as Figure 1 and Figure 3 As shown, at least one side of the first rib plate 3 is provided with a first reinforcing rib 31, and the first reinforcing rib 31 is fixedly connected between the first rib plate 3 and the vertical plate 2.

[0041] By setting the first reinforcing rib 31, the connection strength between the first rib plate 3 and the vertical plate 2 is increased, and relative bending between the first rib plate 3 and the vertical plate 2 at the connection position is avoided during use.

[0042] The first rib plate 3 has a first reinforcing rib 31 on at least one side, which means that the first reinforcing rib 31 is provided on one side of the two sides of the first rib plate 3, or the first reinforcing rib 31 is provided on both sides of the first rib plate 3.

[0043] In some embodiments, such as Figure 2 and Figure 3 As shown, the second rib 4 is vertically arranged and perpendicular to the vertical plate 2.

[0044] The second rib 4 is vertically set and perpendicular to the vertical plate 2, which can increase the connection strength between the vertical plate 2 and the bottom plate 1, and at the same time strengthen the structural strength of the vertical plate 2, so as to prevent the vertical plate 2 from deforming due to large local stress during use.

[0045] In some embodiments, such as Figure 2 and Figure 3 As shown, the second rib 4 is a triangular plate, and the sides corresponding to the two right-angled sides of the second rib 4 are fixedly connected to the vertical plate 2 and the bottom plate 1, respectively.

[0046] By setting the second rib 4 as a triangular plate, the connection strength between the vertical plate 2 and the base plate 1 can be increased to the maximum extent, preventing the base plate 1 from deforming due to force during use, and ensuring the stability and connection reliability of the base plate 1 during use.

[0047] In some embodiments, at least one side of the second rib plate 4 is provided with a second reinforcing rib 41, the end of the second reinforcing rib 41 extends to the connection between the bottom plate 1 and the vertical plate 2, and the second reinforcing rib 41 is provided at an angle to the vertical plate 2.

[0048] By setting a second reinforcing rib 41 on the side of the second rib plate 4, the connection between the second rib plate 4 and the bottom plate 1 and the vertical plate 2 is increased. The two reinforcing ribs are set at an angle to the vertical plate 2, which can increase the stress points and stress areas of the vertical plate 2 and the bottom plate 1 during the use of the inclined foundation, thereby increasing the stability and connection reliability of the inclined foundation during use.

[0049] The second rib plate 4 has a second reinforcing rib 41 on at least one side, meaning that the second reinforcing rib 41 is provided on one side of the two sides of the second rib plate 4, or the second reinforcing rib 41 is provided on both sides of the second rib plate 4.

[0050] In some embodiments, the base plate 1 and the vertical plate 2 are integrally formed.

[0051] The base plate 1 and the vertical plate 2 are integrally formed, which facilitates processing and ensures the reliability of the connection between the base plate 1 and the vertical plate 2.

[0052] In some embodiments, such as Figure 2 As shown, the anchor plate 5 is inclined and forms an angle with the vertical plate 2.

[0053] The anchor plate 5 is inclined and forms an angle with the vertical plate 2, which facilitates the anchoring of the stay cable 7 at the anchor plate 5, reduces the wear of the stay cable 7 at the position where it passes through the vertical plate 2, and increases the service life of the stay cable 7.

[0054] Optionally, a support plate 51 is fixedly installed between the anchor plate 5 and the vertical plate 2. Two support plates 51 are arranged in parallel, and the inclined cable 7 passes through the middle of the two support plates 51 and is anchored on the anchor plate 5.

[0055] Optionally, the anchor plate 5 is set perpendicular to the insertion direction of the stay cable 7, and the anchor at the end of the stay cable 7 is anchored perpendicular to the anchor plate 5, thereby making the cable segment of the stay cable 7 inside the side wall of the pit 6 parallel to the cable segment of the stay cable 7 between the vertical plate 2 and the anchor plate 5, reducing the wear of the stay cable 7 at the position where it passes through the vertical plate 2 and increasing the service life of the stay cable 7.

[0056] In some embodiments, such as Figure 1 and Figure 3 As shown, the vertical plate 2 has a through hole 21 for the cable 7 to pass through, and the through hole 21 is located at the center of the vertical plate 2.

[0057] The through hole 21 is located at the center of the vertical plate 2. Correspondingly, the anchor plate 5 is also located at the center of the vertical plate 2, which facilitates the overall stress distribution of the vertical plate 2 and ensures the stability of the inclined tie foundation during use.

[0058] In some embodiments, such as Figure 1 and Figure 3 As shown, a protective sleeve 22 is provided inside the through hole 21 for the stay cable 7 to pass through.

[0059] By setting a protective sleeve 22, the stay cable 7 is protected in the through hole 21, reducing the wear of the stay cable 7 at the position where it passes through the vertical plate 2 and increasing the service life of the stay cable 7.

[0060] The photovoltaic flexible support system according to an embodiment of the present invention is described below.

[0061] The photovoltaic flexible support system of this invention includes a photovoltaic flexible support, a stay cable 7, and a photovoltaic flexible support inclined foundation of any of the above embodiments. The photovoltaic flexible support and the photovoltaic flexible support inclined foundation are connected by the stay cable 7.

[0062] The photovoltaic flexible support inclined base of the present invention has the following advantages:

[0063] (1) All components are prefabricated and can be assembled in the factory, which not only ensures the overall quality of the structure, but also significantly speeds up the construction progress, making construction convenient and with a short construction period.

[0064] (2) The base plate and the vertical plate are arranged in an L-shape on the elevation. The forces on the vertical plate and the base plate in the foundation pit are balanced by the forces on the anchor plate of the stay cable, thus ensuring the stability of the stay foundation. The stay cable passes through the foundation soil and the vertical plate and is directly anchored to the anchor plate. There are fewer connection nodes and the connection reliability is strong.

[0065] (3) No grouting process is required during construction and installation, which causes less damage to the ecological environment and is suitable for scenarios with strict requirements for excavation and concrete use, such as tea-photovoltaic integration.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic flexible support inclined cable foundation, characterized in that, include: A base plate and vertical plates, wherein the base plate is used to be laid at the bottom of the foundation pit, and the vertical plates are perpendicular to and fixedly connected to the base plate, and the vertical plates are used to be tightly attached to the side wall of the foundation pit; The first rib is provided on the side of the vertical plate away from the bottom plate and is provided at intervals. The first rib is used to be inserted into the side wall of the pit. The first rib is horizontally arranged and perpendicular to the vertical plate. The second rib is located on the same side of the vertical plate as the base plate and is provided in multiple ribs at intervals. The second rib is fixedly connected to the base plate and the vertical plate. The second rib is vertically arranged and perpendicular to the vertical plate. The second rib is a triangular plate. The sides corresponding to the two right-angled sides of the second rib are fixedly connected to the vertical plate and the base plate respectively. An anchor plate, wherein the anchor plate and the base plate are located on the same side of the vertical plate and the anchor plate is located between two adjacent second ribs, the anchor plate being used to anchor the stay cable passing through the foundation soil and the vertical plate.

2. The photovoltaic flexible support inclined foundation according to claim 1, characterized in that, The second rib is provided with a second reinforcing rib on at least one side, the end of the second reinforcing rib extends to the connection between the bottom plate and the vertical plate, and the second reinforcing rib is provided at an angle to the vertical plate.

3. The photovoltaic flexible support inclined foundation according to claim 1, characterized in that, The base plate and the vertical plate are integrally formed.

4. The photovoltaic flexible support inclined cable foundation according to claim 1, characterized in that, The anchor plate is inclined and forms an angle with the vertical plate.

5. The photovoltaic flexible support inclined cable foundation according to any one of claims 1-4, characterized in that, The vertical plate has a through hole for the stay cable to pass through, and the through hole is located at the center of the vertical plate.

6. The photovoltaic flexible support inclined cable foundation according to claim 5, characterized in that, The through hole is equipped with a protective sleeve for the stay cable to pass through.

7. A photovoltaic flexible support system, characterized in that, It includes a photovoltaic flexible support, a stay cable, and a photovoltaic flexible support stay foundation as described in any one of claims 1-6, wherein the photovoltaic flexible support and the photovoltaic flexible support stay foundation are connected by the stay cable.

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