Flexible photovoltaic support and anchorage device special for steel strand of flexible photovoltaic support
By using an anchor consisting of a sleeve, anchor plate, clip and anchor pad in a flexible photovoltaic bracket, the problems of insufficient spanning capacity and poor durability of the anchor are solved, a bracket design with a larger span and higher corrosion resistance is achieved, and land utilization and service life are improved.
Patent Information
- Application Number
- CN202422477412.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Existing flexible photovoltaic supports are prone to large deformation and vibration frequency resonance under the action of wind, have insufficient spanning capacity, and traditional anchors have weak durability and corrosion resistance.
A special anchor for steel strands is used, which consists of a casing, an anchor plate, a clip and an anchor pad. The casing is used to combine multiple strands of steel strands. The anchor plate provides a fixing point, which is fixed by the clip. The anchor pad is embedded in the concrete foundation support, and the end of the steel strand is sealed with a capping structure.
It improves the spanning ability and corrosion resistance of the flexible photovoltaic bracket, extends its service life, enhances the overall strength and land utilization rate of the bracket, and meets the needs of agricultural and photovoltaic complementarity.
Smart Images
Figure CN223402402U_ABST
Abstract
Description
Technical field
[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a flexible photovoltaic bracket. [Background Technology]
[0002] At present, the application of flexible photovoltaic brackets in the market is gradually increasing. Flexible brackets can increase the utilization of space, adapt to various terrains, successfully solve problems such as span limitations, easy corrosion and complex construction. Compared with traditional steel frame structures, they achieve the effect of semi-pre-supported assembly.
[0003] The most core component of the flexible support is the steel strand, which has the characteristics of high strength, corrosion resistance and easy maintenance. It is these characteristics of the steel strand that create the advantages of the flexible support. As the main force anchoring point on both sides of the steel strand, the anchor is the key component to ensure that the tension of the steel strand is controlled and the steel strand plays its role.
[0004] Flexible support systems have weak overall structural rigidity, are prone to significant deformation under wind, and suffer from vibration frequency resonance, making it difficult to achieve larger spans. Traditional flexible supports utilize single-strand steel strands, which result in insufficient strength and limited span capacity. Furthermore, traditional photovoltaic flexible support anchors suffer from poor durability and corrosion resistance. [Utility Model Content]
[0005] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a flexible photovoltaic bracket and a special anchor for its steel strands, so as to improve the spanning ability and corrosion resistance and extend the service life.
[0006] To solve the above technical problems, the present invention adopts the following technical solutions: First, a special anchor for steel strands of a flexible photovoltaic support is provided, which is used to anchor the ends of multiple steel strands together, including:
[0007] A casing, which is nested outside the multiple strands of steel wire and combines the multiple strands of steel wire into one strand;
[0008] An anchor plate, wherein the anchor plate is provided with an anchor hole, and the steel strand nested with the casing passes through the anchor hole;
[0009] A clip, which is fixed in the anchor hole and fixes the steel strand to the anchor plate;
[0010] An anchor plate, which is provided on the back of the anchor plate and is used to support the anchor plate. The anchor plate is provided with a through hole for the steel strand with the sleeve nested therein to pass through. The anchor plate is pre-buried in the concrete foundation bracket;
[0011] The end-sealing structure is used to seal the end of the steel strand.
[0012] Preferably, the anchor plate includes a large head end abutting against the anchor plate, a small head end arranged opposite to the large head end, and a middle section arranged between the large head end and the small head end.
[0013] Preferably, the outer side wall of the middle section is in the shape of an arc.
[0014] Preferably, the large head end and the small head end are both made of round steel plates, and the two ends of the middle section are correspondingly welded to the large head end and the small head end.
[0015] Preferably, a positioning groove for positioning the anchor plate is provided on the big head end, and the contact surface between the anchor plate and the positioning groove is a plane perpendicular to the steel strand.
[0016] Preferably, the anchor plate is a round steel column.
[0017] Preferably, the end-sealing structure is concrete wrapping the ends of the steel strands.
[0018] Preferably, the anchor hole is a conical hole, and at least two clips are combined into a cone shape to clamp and fix the steel strand in the anchor hole.
[0019] Preferably, the parameter of the steel strand is 1×7-φ^s 9.5mm.
[0020] In addition, a flexible photovoltaic bracket is also provided, which is provided with a concrete foundation bracket and a special anchor for steel strands, and the special anchor for steel strands is fixed to the concrete foundation bracket.
[0021] The utility model adopts the above technical solution, which has the following beneficial effects:
[0022] 1. The sleeve is nested on the outside of the multi-strand steel strand, merging the multi-strand steel strand into one strand, providing a simple and effective fixing point for the multi-strand steel strand, and protecting the steel strand from defects such as corrosion and rust in the later period; the anchor plate not only provides a "foundation" for the steel strand to fulcrum, allowing the clip to be attached to the anchor plate, thereby fixing the steel strand in the anchor hole of the anchor plate, but also increases the force-bearing area of the fulcrum and reduces the stress distribution per unit area, thereby ensuring that the prestress can be transmitted according to the predetermined design idea, but also plays a positioning role to ensure the linear shape of the steel strand.
[0023] Since the anchor can combine two or more strands of steel wire into a bundle, the spanning capacity of the flexible bracket can be improved. Photovoltaic panels can be installed on rows of steel cables. The two ends of the steel cables are connected by rigid supports. They can span complex terrains such as gullies, steep slopes, and streams, effectively improving land utilization. The span area is increased within the same land area. It has the advantages of large span, high clearance, good crack resistance, and large bottom farming space, which meets the needs of agricultural and photovoltaic complementarity.
[0024] In addition, reinforced concrete supports and anchors are used together, where the anchor pad of the anchor is pre-buried in the concrete foundation support, so that the anchor and the support form an integrated structure. The anchor pad can effectively transfer the prestress to the concrete foundation support. The final fulcrum of the prestressed fixed end is located on the concrete support, and finally transferred to the earth foundation. Therefore, the support strength is high, the spanning capacity is improved, and the durability defects of traditional steel supports are avoided.
[0025] Traditional anchors are exposed to the atmosphere. After tensioning, the excess strands at the ends of the cut anchors are not sealed, leaving the strand ends exposed to the atmosphere. This reduces the anchor's service life and requires improvement in its durability and corrosion resistance. The capped end structure seals the strand ends, preventing them from being exposed to atmospheric corrosion, improving the anchor's corrosion resistance and durability, and extending its service life.
[0026] 2. The anchor plate includes a large head end that abuts the anchor plate, a small head end arranged opposite to the large head end, and an intermediate section arranged between the large head end and the small head end. The intermediate section is mainly combined with the concrete foundation support. Since the outer wall of the intermediate section is in the shape of an arc or other concave structure, the bonding force with the concrete foundation support can be improved.
[0027] 3. The big end and small end of the anchor plate are made of round steel plates. The anchor plate is a round steel column, and the two ends of the middle section are welded to the big end and small end to reduce processing costs and ensure the overall structural strength.
[0028] 4. A positioning groove for positioning the anchor plate is provided on the big end of the anchor plate, and the contact surface between the anchor plate and the positioning groove is perpendicular to the plane of the steel strand. Therefore, the relative position between the two is fixed and the contact is sufficient, so that the force of the anchor plate is effectively transmitted to the anchor plate.
[0029] 5. After tensioning, this anchor cuts off excess steel strands at the end and seals them with concrete, preventing exposure to the atmosphere and significantly improving their durability and corrosion resistance. Compared to other sealing methods, this method offers lower costs and better sealing results.
[0030] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.
Brief Description of the Drawings
[0031] The utility model is further described below with reference to the accompanying drawings:
[0032] Figure 1 This is a structural diagram of a special anchor for steel strands;
[0033] Figure 2 for Figure 1 Schematic diagram of the middle AA section;
[0034] Figure 3 for Figure 1 Schematic diagram of the middle BB section;
[0035] Figure 4 Schematic diagram of the end plugging structure;
[0036] Reference numerals: steel strand 1, casing 2, anchor plate 3, clip 4, anchor pad 5, large end 51, middle section 52, small end 53, concrete 6. [Specific implementation method]
[0037] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.
[0038] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.
[0039] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "left," "right," and the like, which indicate directions or positional relationships, are based solely on the directions or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction or be constructed or operated in a specific direction. Therefore, they should not be construed as limiting the utility model.
[0040] 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.
[0041] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0042] Prestressing a strand by tensioning is called prestressing. While strands inherently possess significant tensile strength, prestress is increased by stretching them. The strand ends are where stress is concentrated, and securing them is crucial for ensuring proper function. Existing technology uses specialized anchors to secure these ends. As the primary anchoring point on either side of the strand, the anchors are crucial for controlling strand tension and ensuring the strand performs its intended function.
[0043] In order to improve the spanning capacity and corrosion resistance of flexible photovoltaic brackets and extend the service life of anchors. Figures 1 to 4 As shown, this embodiment provides a special anchor for steel strands of a flexible photovoltaic support, which is used to anchor the ends of multiple steel strands 1 together, and includes:
[0044] The casing 2 is nested outside the multiple strands of steel wire 1 and combines the multiple strands of steel wire into one strand;
[0045] An anchor plate 3, wherein the anchor plate 3 is provided with an anchor hole, and the steel strand 1 embedded with the sleeve 2 passes through the anchor hole;
[0046] A clip 4 is fixed in the anchor hole and fixes the steel strand 1 to the anchor plate 3;
[0047] Anchor plate 5, which is provided on the back of anchor plate 3 and is used to support anchor plate 3. A through hole for the steel strand to pass through is provided on the anchor plate 5. The anchor plate 5 is pre-buried in the concrete foundation support;
[0048] The end-sealing structure is used to seal the end of the steel strand.
[0049] In the above technical solution, the steel strand is selected according to the design span. The common parameters are 1×7-φ^s 9.5mm and the standard value of tensile strength f sk =1720MPa. The sleeve is nested outside the multiple strands of steel strand, consolidating them into one strand. This provides a simple and effective fixing point for the strands, while also protecting them from later corrosion and rust. The anchor plate not only provides a "foundation" for the strands, allowing the clip to attach to the anchor plate, thereby securing the strand within the anchor plate's anchor hole, but also increases the stress-bearing area of the point of force, reducing the stress distribution per unit area, thereby ensuring that the prestress is transmitted according to the predetermined design concept. It also serves as a positioning function, ensuring the linear shape of the steel strand.
[0050] Since the anchor can combine two or more strands of steel wire into a bundle, the spanning capacity of the flexible bracket can be improved. Photovoltaic panels can be installed on rows of steel cables. The two ends of the steel cables are connected by rigid supports. They can span complex terrains such as gullies, steep slopes, and streams, effectively improving land utilization. The span area is increased within the same land area. It has the advantages of large span, high clearance, good crack resistance, and large bottom farming space, which meets the needs of agricultural and photovoltaic complementarity.
[0051] In addition, reinforced concrete supports and anchors are used together, where the anchor pad of the anchor is pre-buried in the concrete foundation support, so that the anchor and the support form an integrated structure. The anchor pad can effectively transfer the prestress to the concrete foundation support. The final fulcrum of the prestressed fixed end is located on the concrete support, and finally transferred to the earth foundation. Therefore, the support strength is high, the spanning capacity is improved, and the durability defects of traditional steel supports are avoided.
[0052] Traditional anchors are exposed to the atmosphere. After tensioning, the excess strands at the ends of the cut anchors are not sealed, leaving the strand ends exposed to the atmosphere. This reduces the anchor's service life and requires improvement in its durability and corrosion resistance. The capped end structure seals the strand ends, preventing them from being exposed to atmospheric corrosion, improving the anchor's corrosion resistance and durability, and extending its service life.
[0053] Specifically, the anchor plate 3 is a round steel column. The anchor hole is a conical hole, and at least two clips 4 are combined into a cone shape to clamp and fix the steel strand 1 in the anchor hole. The round steel column is forged and has high strength. Its length can be set longer, and the corresponding conical hole depth is also larger. In this way, the force-bearing area can be increased, ensuring that the clip can effectively fix the steel strand on the anchor plate. The anchor pad 5 includes a large end 51 that abuts the anchor plate 3, a small end 53 set relative to the large end, and an intermediate section 52 set between the large end and the small end. The outer wall of the intermediate section is in the shape of a circular arc. Of course, it can also be a cone or other concave structure, in which concrete is embedded, so that it is well combined with the concrete foundation support. In addition, the large end 51 and the small end 53 are both made of round steel plates, and the two ends of the intermediate section 52 are welded to the large end and the small end respectively, so that they are firmly combined into a whole, reduce processing costs, and ensure the strength of the overall structure.
[0054] Furthermore, a positioning groove for positioning the anchor plate is provided on the big head end. The depth of the positioning groove does not need to be too large, and a certain thickness of the end of the anchor plate can be positioned. In addition, the contact surface between the anchor plate and the positioning groove is perpendicular to the plane of the steel strand, so the relative position between the two is fixed and the contact is sufficient, so that the force of the anchor plate can be effectively transmitted to the anchor pad.
[0055] Furthermore, the outer side of the anchor plate and the ends of the steel strands are encased in concrete 6, forming a sealed end structure. The concrete grade is no less than C30, and the steel bars used are HRB400 (hot-rolled ribbed steel bars). After tensioning, the excess steel strands at the anchor ends are cut off and sealed with concrete, preventing exposure to the atmosphere. This significantly improves the durability and corrosion resistance of the anchor, extending its service life. Compared to other sealing methods, this method offers lower costs and better sealing results.
[0056] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.
Claims
1. A special anchor for steel strands of a flexible photovoltaic support, used to anchor the ends of multiple steel strands together, characterized in that: include: A casing, which is nested outside the multiple strands of steel wire and combines the multiple strands of steel wire into one strand; An anchor plate, wherein the anchor plate is provided with an anchor hole, and the steel strand nested with the casing passes through the anchor hole; A clip, which is fixed in the anchor hole and fixes the steel strand to the anchor plate; An anchor plate, which is provided on the back of the anchor plate and is used to support the anchor plate. The anchor plate is provided with a through hole for the steel strand with the sleeve nested therein to pass through. The anchor plate is pre-buried in the concrete foundation bracket; The end-sealing structure is used to seal the end of the steel strand.
2. The special anchor for steel strands of a flexible photovoltaic support according to claim 1, characterized in that: The anchor plate includes a large head end abutting against the anchor plate, a small head end arranged opposite to the large head end, and a middle section arranged between the large head end and the small head end.
3. The special anchor for steel strands of a flexible photovoltaic support according to claim 2, characterized in that: The outer side wall of the middle section is in the shape of an arc.
4. The special anchor for steel strands of a flexible photovoltaic support according to claim 2, characterized in that: The large head end and the small head end are both made of round steel plates, and the two ends of the middle section are correspondingly welded to the large head end and the small head end.
5. The special anchor for steel strands of a flexible photovoltaic support according to claim 2, characterized in that: The big end is provided with a positioning groove for positioning the anchor plate, and the contact surface between the anchor plate and the positioning groove is a plane perpendicular to the steel strand.
6. The special anchor for steel strands of a flexible photovoltaic support according to claim 1, characterized in that: The anchor plate is a round steel column.
7. The special anchor for steel strands of a flexible photovoltaic support according to claim 1, characterized in that: The end-sealing structure is concrete that wraps the ends of the steel strands.
8. The special anchor for steel strands of a flexible photovoltaic support according to claim 1, characterized in that: The anchor hole is a conical hole, and at least two clamps are combined into a cone shape to clamp and fix the steel strand in the anchor hole.
9. The special anchor for steel strands of a flexible photovoltaic support according to claim 1, characterized in that: The parameters of the steel strand are 1×7-φ^s 9.5mm.
10. A flexible photovoltaic support, characterized in that: The flexible photovoltaic support is provided with a concrete foundation support and the special anchor for steel strands according to any one of claims 1 to 9, and the special anchor for steel strands is fixed to the concrete foundation support.