Steel strand anchorage device structure

By designing an easy-to-install and adjust steel strand anchor structure, combined with modified emulsified asphalt or epoxy coal tar pitch paint for corrosion protection, the problems of complex structure and difficult corrosion protection of photovoltaic flexible support anchors have been solved, achieving simplified construction, improved efficiency and guaranteed safety.

CN223497432UActive Publication Date: 2025-10-31SILVERY DRAGON PRESTRESSED MATERIALS CO LTD
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Patent Information

Application Number
CN202422685177.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-10-31
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

Existing flexible photovoltaic supports have complex anchor structures, poor corrosion resistance, and are difficult to construct and maintain. They also cannot effectively adapt to geological settlement, affecting construction progress and safety.

Method used

Design a steel strand anchor structure including an adjuster, an adjusting seat, a pin, and an anchor, adopting an easy-to-install, adjust, and disassemble method, combined with modified emulsified asphalt or epoxy coal tar paint for corrosion protection, simplifying the construction process and facilitating later maintenance.

Benefits of technology

It simplifies the construction process, reduces construction difficulty and cost, improves construction efficiency and quality, facilitates later maintenance and identification of potential problems, and ensures the safety and corrosion resistance of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a steel strand anchorage device structure which comprises an adjuster (1), an adjusting seat (2), a pin shaft (3) and an anchorage device. A clamping seat with a connecting hole is arranged at the bottom end of the adjustor (1), a plurality of pin holes are formed in the side wall of the adjustor (1), the adjusting seat (2) is of an annular structure and can be arranged on the outer side of the adjustor (1) in a sleeving mode, a clamping groove is formed in the outer end of the adjusting seat (2), a pin shaft (3) can be placed in the clamping groove, and the pin shaft (3) can be clamped in the clamping groove after penetrating through the pin holes. And the anchorage device is placed on the inner side of the regulator (1). The anchor device structure has the advantages that the anchor device structure is easy to install, adjust and disassemble, the connection mode of the anchor device and the support cross beam is improved, fast installation is achieved, and complex operation and technical requirements in the construction process are reduced. And meanwhile, by optimizing the construction technological process, the construction efficiency and quality are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of steel strand, and in particular relates to a steel strand anchor structure. Background Technology

[0002] The stability of flexible photovoltaic (PV) supports is crucial to the overall performance and safety of PV systems. As a key component of the support structure, the rationality of its structural design directly affects the stability and adaptability of the support system.

[0003] In existing technologies, prestressed steel cable construction tools and methods for concrete highway bridges are often used. This method is complex in structure, difficult to operate, inefficient, and cannot perform secondary tensioning to adapt to the reduction of prestress in the steel strands caused by geological settlement.

[0004] Rusting of anchorages in flexible photovoltaic (PV) support projects is a significant safety concern, especially in rainy areas and fishpond projects. While hot-dip galvanizing is typically used for corrosion protection, anchorages often experience wedge slippage after galvanizing, leading to a decrease in the prestress of the steel strands. Current mainstream corrosion protection technologies rely on injecting sealant, grease, or desiccants into sealed cavities to isolate the anchorages from air and prevent corrosion. However, this method often suffers from unclear material selection, complex construction processes, and difficulty in guaranteeing long-term effectiveness. Furthermore, the failure or leakage of sealing materials can rapidly reduce the effectiveness of corrosion protection. Some methods combine heat shrink tubing with sealant, but this also faces challenges such as complex construction, high costs, and difficult maintenance. Heat shrink tubing installation requires specialized skills and tools, and it may age and crack due to environmental factors. Other methods use steel structure protective sleeves and grouting materials, but these designs often present challenges such as difficult construction, inconvenient maintenance, and poor environmental adaptability. For example, grouting materials may absorb moisture and expand in humid environments, leading to a decrease or even failure of the corrosion protection effect. These solutions are either complex to construct, involve long procedures, or require regular inspections and material replacements.

[0005] In the installation of flexible photovoltaic (PV) supports, tensioning of steel strands and anchor fixing are critical steps that constrain construction progress. In existing technologies, anchor fixing mostly uses bolts connected to crossbeams. During installation, the bolts on both sides need frequent adjustment to achieve balance, which not only increases construction complexity and time costs but also raises labor and material costs. This design is particularly disadvantageous for large-scale, highly repetitive construction scenarios like PV projects, resulting in both construction complexity and high costs. Summary of the Invention

[0006] In view of this, the present invention aims to propose a steel strand anchor structure to enhance the adaptability and adjustability of the anchor and solve the corrosion problem of steel strand anchors.

[0007] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0008] A steel strand anchor structure includes an adjuster, an adjusting seat, a pin, and an anchor.

[0009] The bottom end of the regulator is a retainer with a connecting hole. Several pin holes are opened on the side wall of the regulator. The retainer is a ring structure. The retainer can be fitted on the outside of the regulator. The side wall or outer end of the retainer is provided with a slot to place the pin. After the pin passes through the pin hole, it can be locked in the slot. The anchor is placed above the retainer.

[0010] Furthermore, the anchor includes an anchor ring, a clamping plate assembly, and an anchor ring cap. The clamping plate assembly is a hollow frustum structure composed of two or three pieces. An annular groove is provided on the outer bottom of the clamping plate assembly, and a metal wire is embedded in the connecting groove. The metal wire connects the two or three pieces of the clamping plate assembly in series. The anchor ring is also an annular structure, and the through hole inside the anchor ring is frustum-shaped, matching the clamping plate assembly. The anchor ring cap is a cap-shaped structure, and its internal thread on the side wall engages with the external thread of the anchor ring. A through hole is provided on the top of the anchor ring cap.

[0011] Furthermore, the regulator is a hollow columnar body or a plate-shaped structure.

[0012] Furthermore, when the regulator is a hollow column, it is a hexagonal prism, a square prism, or a cylinder, with pin holes distributed in pairs on its sidewalls.

[0013] Furthermore, the cap-like structure of the anchor ring cap is the same as that of a regular mineral water bottle cap.

[0014] Furthermore, the card holder has a planar structure.

[0015] Furthermore, the anchor is made of carbon steel or stainless steel.

[0016] The advantages and positive effects of this utility model are:

[0017] This solution simplifies the construction process and reduces construction difficulty. Addressing the characteristics of photovoltaic projects—large-scale and highly repetitive construction—this invention provides an anchor structure that is easy to install, adjust, and disassemble. It improves the connection between the anchor and the support beam, enabling rapid installation and reducing complex operations and technical requirements during construction. Simultaneously, by optimizing the construction process, it improves construction efficiency and quality.

[0018] This solution enhances the convenience and operability of later maintenance. Considering the difficulty of maintaining corrosion-resistant structures in existing technologies, this invention, as an anchorage structure that is easy to inspect and repair, allows users to quickly identify and resolve potential problems, while reducing maintenance costs and time. For projects with poor geological conditions, secondary tensioning can be performed after 3 years of settlement to ensure the safety of the direct structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a steel strand anchor.

[0021] Figure 2 This is a sectional view of the steel strand anchor structure;

[0022] Figure 3 This is a structural diagram of the anchor in a steel strand anchor structure;

[0023] Figure 4 This is an assembly diagram of a steel strand anchor structure.

[0024] In the picture:

[0025] 1. Adjuster 2. Adjusting seat 3. Pin 4. Anchor ring

[0026] 5. Clamping plate assembly; 6. Anchor ring cover; 7. Steel strand; 8. Anti-corrosion material.

[0027] 9. Support beam Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the structure of the device will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and height should be included.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0033] Definitions:

[0034] Prestressing: To improve the rigidity of the overall structure, tensile or compressive forces are applied in advance during construction, thereby generating stress inside the component in advance to partially or completely offset the stress caused by external loads and avoid excessive deformation when subjected to external forces.

[0035] Steel strand: A type of steel wire rope made of multiple strands of fine steel wire twisted together. It is commonly used in engineering projects such as bridges, cranes, lifting equipment, and power towers for structural support or lifting purposes. Steel strand is characterized by high strength, high wear resistance, and high tensile strength, enabling it to withstand significant weight and tension. It is typically made by twisting multiple strands of fine steel wire in a specific manner, forming a flexible yet very strong structure suitable for various engineering applications requiring the bearing of tensile forces and weights.

[0036] Steel strand anchors are devices used to secure steel strands, commonly used in bridges, buildings, and lifting equipment projects. Their main function is to firmly fix the steel strands to the structure, ensuring their stability and safe use. Steel strand anchors ensure a secure connection between the steel strand and the structure by passing the steel strand through the anchor and fixing it in place. This device effectively distributes and transmits the tension of the steel strand, guaranteeing its stability and safety in engineering projects.

[0037] like Figures 1 to 4 As shown, this utility model includes an adjuster 1, an adjusting seat 2, a pin 3, and an anchor. The adjuster 1 is a hollow cylindrical body with a retainer at one end having a connecting hole. The retainer has a planar structure. The cylindrical wall of the adjuster 1 has several pairs of pin holes. The adjusting seat 2 has an annular structure and can be fitted onto the outside of the adjuster 1. The outer end of the adjusting seat 2 is provided with a groove for placing the pin 3. The anchor is placed inside the adjuster 1.

[0038] The anchor includes an anchor ring 4, a clamping plate assembly 5, and an anchor ring cap 6. The clamping plate assembly 5 is a hollow frustum structure composed of two or three pieces. An annular groove is provided on the outer bottom of the clamping plate assembly 5. A metal wire is embedded in the connecting groove, and the metal wire connects the two or three pieces of the clamping plate assembly 5 in series. The anchor ring 4 is also an annular structure. The through hole inside the anchor ring 4 is frustum-shaped and matches the clamping plate assembly 5. The anchor ring cap 6 is a cap-shaped structure. The internal thread of the anchor ring cap 6 matches the external thread of the anchor ring 4. The top of the anchor ring cap 6 is provided with a through hole.

[0039] The regulator 1 is hexagonal in shape, and using this structure can reduce the tensioning step length.

[0040] The cap-like structure of the anchor ring cap 6 is the same as that of a regular mineral water bottle cap.

[0041] When using:

[0042] S1, insert the end of the steel strand 7 into the connection hole of the regulator 1, and then pass the anchor ring 4 through the steel strand 7;

[0043] S2, clamp the steel strand 7 with the clamping assembly 5, and press the clamping assembly 5 into the anchor ring 4 with the clamping clamping device so that the outer side of the clamping assembly 5 and the inner side of the anchor ring 4 are in close contact; then pass the anchor ring cover 6 through the middle through hole through the steel strand 7, and tighten the anchor ring cover 6 onto the anchor ring 4 through the threaded engagement.

[0044] S3, then immerse the assembled anchor and the end of the steel strand 7 together in the anti-corrosion material 8, so that the ends of the anchor and the steel strand 7 are completely immersed in the anti-corrosion material 8. Take out the anchor, let it dry and observe the anchor and the steel strand 7, and ensure that the anti-corrosion material 8 completely covers it. The anti-corrosion material 8 wrapped around the outside of the equipment isolates the anchor from the air and prevents rust. This method is simple to construct.

[0045] S4, the anti-corrosion completed anchor retracts into the adjuster 1. The end of the adjuster 1 away from the steel strand 7 passes through the fixing hole of the support beam 9. The adjusting seat 2 is fitted onto the end of the adjuster 1, and a suitable pin hole is selected to insert the pin 3, so that the pin 3 is locked in the slot on the adjusting seat 2. When one side of the steel strand 7 is pulled, the entire anchor structure can be fixed on the photovoltaic support beam 9.

[0046] S5, the fixed end of the steel strand 7 is fixed to the support beam 9 through the above steps. The tensioning end is fixed to the corresponding position through the same above steps after the steel strand 7 is prestressed. At this time, the installation is completed.

[0047] S6. During later inspections and maintenance, the condition of the anti-corrosion material 8 on the anchor and the tension of the steel strand 7 are observed to determine whether it is necessary to adjust the installation hole position of the adjuster 1 and whether it is necessary to add anti-corrosion material 8. If it is necessary to adjust the tension, the adjustment is made by adjusting the pin 3 through the pin holes of different lengths on the adjuster 1.

[0048] S7. When it is necessary to replace the anchor or steel strand 7, heat the anti-corrosion material 8 to melt it and then remove it. Then remove the anchor and replace it with a new anchor. Repeat steps 2-5.

[0049] Multiple anchors can be used together.

[0050] The anti-corrosion material is modified emulsified asphalt or epoxy coal tar paint.

[0051] This solution simplifies the construction process and reduces construction difficulty. Addressing the characteristics of photovoltaic projects—large-scale and highly repetitive construction—this invention provides an anchor structure that is easy to install, adjust, and disassemble. It improves the connection between the anchor and the support beam, enabling rapid installation and reducing complex operations and technical requirements during construction. Simultaneously, by optimizing the construction process, it improves construction efficiency and quality.

[0052] This solution enhances the convenience and operability of later maintenance. Considering the difficulty of maintaining corrosion-resistant structures in existing technologies, this invention, as an anchorage structure that is easy to inspect and repair, allows users to quickly identify and resolve potential problems, while reducing maintenance costs and time. For projects with poor geological conditions, secondary tensioning can be performed after 3 years of settlement to ensure the safety of the direct structure.

[0053] To overcome the limitations and shortcomings of existing anti-corrosion technologies, this invention can meet the long-term operational requirements of photovoltaic support systems. This invention will further improve the anti-corrosion effect and service life of anchorages.

[0054] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A steel strand anchor structure, characterized in that: It includes an adjuster (1), an adjusting seat (2), a pin (3), and an anchor. The bottom end of the regulator (1) is a card seat with a connecting hole. Several pin holes are opened on the side wall of the regulator (1). The regulating seat (2) is a ring structure. The regulating seat (2) can be sleeved on the outside of the regulator (1). The side wall or outer end of the regulating seat (2) is provided with a slot to place the pin (3). After the pin (3) passes through the pin hole, it can be locked in the slot. The anchor is placed above the card seat.

2. The steel strand anchor structure according to claim 1, characterized in that: The anchor includes an anchor ring (4), a clamping plate assembly (5), and an anchor ring cap (6). The clamping plate assembly (5) is a hollow frustum structure composed of two or three pieces. An annular groove is provided on the outer bottom of the clamping plate assembly (5). A metal wire is embedded in the connecting groove. The metal wire connects the two or three pieces of the clamping plate assembly (5) in series. The anchor ring (4) is also a ring structure. The through hole inside the anchor ring (4) is frustum shaped and matches the clamping plate assembly (5). The anchor ring cap (6) is a cap structure. The internal thread of the anchor ring cap (6) is matched with the external thread of the anchor ring (4). The top of the anchor ring cap (6) is provided with a through hole.

3. The steel strand anchor structure according to claim 1, characterized in that: The regulator (1) is a hollow column or plate structure.

4. The steel strand anchor structure according to claim 3, characterized in that: When the regulator (1) is a hollow column, it is a hexagonal prism, a quadrangular prism, or a cylinder, and the pin holes on its sidewalls are distributed in pairs.

5. The steel strand anchor structure according to claim 2, characterized in that: The cap-like structure of the anchor ring cap (6) is the same as that of a regular mineral water bottle cap.

6. The steel strand anchor structure according to claim 1, characterized in that: The card holder has a planar structure.

7. The steel strand anchor structure according to claim 1, characterized in that: The anchor is made of carbon steel or stainless steel.