Steel strand anchorage device structure and anti-corrosion and construction method thereof

Abstract

The invention provides a steel strand anchorage device structure and an anti-corrosion and construction method thereof. The steel strand anchorage device structure 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 anchorage device structure easy to mount, adjust and dismount and the anti-corrosion and construction method thereof have the beneficial effects that the connection mode of the anchorage device and the support cross beam is improved, fast mounting 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.

Description

Technical Field

[0001] The invention belongs to the field of steel strands, and in particular relates to a steel strand anchor structure and an anti-corrosion and construction method thereof. Background Art

[0002] The stability of photovoltaic flexible brackets is crucial to the overall performance and safety of photovoltaic systems. As a key component of the bracket, the rationality of the structural design of the steel strand anchor directly affects the stability and adaptability of the bracket.

[0003] In the prior art, tools and methods for constructing prestressed steel cables for concrete highway bridges are often used. This method has a complex structure, is difficult to operate, has low efficiency, and cannot perform secondary tensioning to adapt to the reduction in prestress of the steel strands caused by geological settlement.

[0004] The rust of anchors in flexible photovoltaic support projects is also a problem that endangers project safety, especially the main problem faced by rainy and fish pond projects. The bracket generally adopts hot-dip galvanizing process to achieve the purpose of corrosion protection, and the clip will retreat after the anchor is hot-dip galvanized, causing the prestress of the steel strand to decrease. At present, the mainstream anti-corrosion technology relies on injecting sealants, sealing grease or desiccant into the sealed cavity to isolate the air to prevent anchor corrosion. However, this method often has problems such as unclear material selection, complex construction process and difficulty in ensuring long-term effect. In addition, the failure or leakage of sealing materials may also lead to a rapid decline in the anti-corrosion effect. There are also some methods that use a combination of heat shrink tubing and sealants for anti-corrosion, but this method also faces the problems of complex construction, high cost and difficulty in later maintenance. The installation of heat shrink tubing requires professional skills and tools, and may aging, cracking and other problems due to environmental factors during use. There are also steel structure protection tubes and grouting materials, but these designs often have problems such as difficult construction, inconvenient later maintenance and poor environmental adaptability. For example, grouting materials may absorb moisture and expand in a humid environment, resulting in a decrease in anti-corrosion effect or even failure. These solutions either have complex construction and long process times, or require regular inspections and material replacements.

[0005] In the installation and construction of photovoltaic flexible brackets, the tensioning of steel strands and the fixing of anchors are key steps that restrict the progress of construction. In the existing technology, anchors are mostly fixed by screws and beams. During the installation process, the screws on both sides of the anchor need to be frequently adjusted to achieve balance, which not only increases the complexity and time cost of construction, but also increases the cost of manpower and materials. This design is particularly disadvantageous for large-scale and highly repetitive construction scenarios such as photovoltaic projects. The construction is complex and costly.

[0006] With the global emphasis on environmental protection and renewable energy, photovoltaics, as an important component of clean energy, will be more widely used and developed in the future. The country is now developing green energy in large quantities, and the increase in some mountain photovoltaic and fishery photovoltaic projects requires further improvement of the above issues. Summary of the invention

[0007] In view of this, the present invention aims to propose a steel strand anchor structure and its anti-corrosion and construction method, enhance the adaptability and adjustability of the anchor, and solve the anti-corrosion problem of the steel strand anchor.

[0008] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0009] A steel strand anchor structure, comprising an adjuster, an adjusting seat, a pin shaft and an anchor;

[0010] The bottom end of the adjuster is a socket with a connecting hole, and a plurality of pin holes are provided on the side wall of the adjuster. The adjustment seat is an annular structure, and the adjustment seat can be sleeved on the outside of the adjuster. A slot is provided on the side wall or the outer end of the adjustment seat to place a pin shaft. The pin shaft can be stuck in the slot after passing through the pin hole, and the anchor is placed above the socket.

[0011] Furthermore, the anchor comprises an anchor ring, a clip assembly and an anchor ring pressure cover, the clip assembly is a hollow truncated cone structure composed of two or three pieces, an annular groove is arranged on the outer side of the bottom of the clip assembly, a metal wire is embedded in the connecting groove, and the metal wire connects the two or three pieces of the clip assembly in series, the anchor ring is also an annular structure, the through hole inside the anchor ring is truncated cone-shaped, matching the clip assembly, the anchor ring pressure cover is a cover-shaped structure, through the internal thread of the side wall of the anchor ring pressure cover, it cooperates with the external thread of the anchor ring, and a through hole is arranged on the top of the anchor ring pressure cover.

[0012] Furthermore, the regulator is a hollow column or a plate-shaped structure.

[0013] Furthermore, when the regulator is a hollow column, it is a hexagonal prism, a quadrangular prism or a cylinder, and the pin holes on its side wall are distributed in pairs.

[0014] Furthermore, the cap-like structure of the anchor ring gland is the structure of an ordinary mineral water bottle cap.

[0015] Furthermore, the card seat is a planar structure.

[0016] Furthermore, the anchor is made of carbon steel or stainless steel.

[0017] The anticorrosion and construction method of the steel strand anchor structure comprises the following steps:

[0018] S1, insert the end of the steel strand into the connection hole of the adjuster, and then pass the anchor ring through the steel strand;

[0019] S2, clamping the steel strand with the clip assembly, and using the clip pressing device to press the clip assembly into the anchor ring, so that the outer side of the clip assembly and the inner side of the anchor ring are in close contact; then passing the anchor ring gland through the middle through the through hole through the steel strand, so that the anchor ring gland is tightened on the anchor ring through threaded engagement;

[0020] S3, immerse the combined anchor and the end of the steel strand together in the anti-corrosion material, so that the anchor and the end of the steel strand are completely immersed in the anti-corrosion material, take out the anchor to dry and observe the anchor and the steel strand to ensure that the anti-corrosion material is completely covered;

[0021] S4, the anti-corrosion anchor is retracted into the adjuster, so that the steel strand is stuck on the connection hole through the anchor, and the adjuster is away from one end of the steel strand and passes through the fixing hole of the bracket crossbeam, and the adjusting seat is sleeved on the end of the adjuster, and a suitable pin hole is selected to insert the pin shaft, so that the pin shaft is stuck in the slot on the adjusting seat, and when one side of the steel strand is pulled, the whole structure can be fixed on the bracket crossbeam;

[0022] S5, the fixed end of the steel strand is fixed to the support beam through the above steps, and the tensioning end is fixed to the corresponding position through the above steps after prestressing the steel strand. At this time, the installation is completed;

[0023] S6, during the later inspection and maintenance, the state of the anti-corrosion material on the anchor and the tension state of the steel strand are observed to determine whether the installation hole position of the regulator needs to be adjusted and whether the anti-corrosion material needs to be added. If the tension needs to be adjusted, the adjustment is made by passing the adjustment pin through the pin holes of different step lengths on the regulator;

[0024] S7, when the anchor or steel strand needs to be replaced, heat the anti-corrosion material to melt it and then remove it, then remove the anchor and replace it with a new one, and repeat steps 2-5.

[0025] Furthermore, the anti-corrosion material is modified emulsified asphalt or epoxy coal tar paint.

[0026] Furthermore, the modified emulsified asphalt includes: 54% by mass of AH-70# asphalt, 1.25% by mass of SBT emulsifier, 0.06% by mass of methyl cellulose, and other requirements are: PH index: 1.8-2.0, asphalt heating temperature: 145-140°C, soap solution temperature: 40-45°C, finished product outlet temperature: 65-80°C.

[0027] The advantages and positive effects of the invention are:

[0028] This solution simplifies the construction process and reduces the difficulty of construction. In view of the large construction volume and high repetitiveness of photovoltaic projects, the present invention is an anchor structure that is easy to install, adjust and disassemble, improves the connection between the anchor and the support beam, and realizes quick installation to reduce the complex operations and technical requirements during the construction process. At the same time, by optimizing the construction process, the construction efficiency and quality are improved.

[0029] This solution enhances the convenience and operability of later maintenance. Considering the difficulty of later maintenance of anti-corrosion structures in the prior art, the present invention is an anchor structure that is easy to inspect and repair, which facilitates users to quickly identify and solve potential problems, while reducing maintenance costs and time. For projects with poor geology, secondary tensioning can be carried out after 3 years of settlement to ensure the safety of the direct structure.

[0030] In order to overcome the limitations and shortcomings of existing anti-corrosion technology, the new anti-corrosion construction method developed by the present invention has excellent corrosion resistance, stability and environmental protection, and can meet the long-term operation requirements of the photovoltaic support system. By replacing anti-corrosion materials and innovating anti-corrosion technology, the present invention will further improve the anti-corrosion effect and service life of the anchor. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a three-dimensional structural diagram of the steel strand anchor structure;

[0033] Figure 2 It is a cross-sectional view of the steel strand anchor structure;

[0034] Figure 3 It is a structural schematic diagram of the anchor in the steel strand anchor structure;

[0035] Figure 4 It is an assembly diagram of the steel strand anchor structure.

[0036] In the figure:

[0037] 1. Regulator 2. Adjustment seat 3. Pin 4. Anchor ring

[0038] 5. Clip assembly 6. Anchor ring gland 7. Steel strand 8. Anti-corrosion material

[0039] 9. Support beam DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention. In the absence of conflict, the embodiments in the invention and the features in the embodiments can be combined with each other.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the invention is described in detail with reference to the schematic diagram. When describing the embodiments of the invention, for the sake of convenience, the cross-sectional diagrams showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the invention. In addition, in actual production, the three-dimensional dimensions of length, width and height should be included.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0045] Glossary:

[0046] Prestressing: In order to increase the rigidity of the overall structure, tension or pressure is 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.

[0047] Steel strand: It is a steel wire rope made of multiple strands of fine steel wires twisted together. It is usually used as a structural support or lifting purpose in bridges, cranes, lifting equipment, power towers and other projects. The characteristics of steel strand include high strength, strong wear resistance, high tensile strength, and the ability to withstand large weight and tension. It is usually made of multiple strands of fine steel wire twisted in a specific way, forming a flexible but very strong structure, suitable for various engineering occasions that need to withstand tension and weight.

[0048] Steel strand anchor: It is a device used to fix steel strands, usually used in bridges, buildings, lifting equipment and other projects. Its main function is to firmly fix the steel strands to the structure to ensure the stability and safe use of the steel strands. The steel strand anchor ensures a firm connection between the steel strands and the structure by passing the steel strands through the anchor and fixing them. This device can effectively disperse and transmit the tension of the steel strands, ensuring their stability and safety in the project.

[0049] like Figures 1 to 4 As shown, the invention includes an adjuster 1, an adjusting seat 2, a pin 3 and an anchor, wherein the adjuster 1 is a hollow cylindrical body, one end of which is a socket with a connecting hole, the socket is a planar structure, a plurality of pairs of pin holes are provided on the cylinder wall of the adjuster 1, the adjusting seat 2 is an annular structure, which can be sleeved on the outside of the adjuster 1, a slot is provided at the outer end of the adjusting seat 2, and the pin 3 can be placed, and the anchor is placed inside the adjuster 1.

[0050] The anchor comprises an anchor ring 4, a clip assembly 5 and an anchor ring pressure cover 6. The clip assembly 5 is a hollow truncated cone structure composed of two or three pieces. An annular groove is arranged on the outer side of the bottom of the clip assembly 5. A metal wire is embedded in the connecting groove. The metal wire connects the two or three pieces of the clip assembly 5 in series. The anchor ring 4 is also an annular structure. The through hole inside the anchor ring 4 is truncated cone-shaped, which matches the clip assembly 5. The anchor ring pressure cover 6 is a cover-shaped structure. The internal thread of the side wall of the anchor ring pressure cover 6 is matched with the external thread of the anchor ring 4. A through hole is arranged on the top of the anchor ring pressure cover 6.

[0051] The adjuster 1 is in a hexagonal shape, and the use of this structure can reduce the tensioning step length of the tensioning.

[0052] The cap-shaped structure of the anchor ring gland 6 is the structure of an ordinary mineral water bottle cap.

[0053] When using:

[0054] S1, insert the end of the steel strand 7 into the connecting hole of the regulator 1, and then pass the anchor ring 4 through the steel strand 7;

[0055] S2, clamp the steel strand 7 with the clip assembly 5, and use the clip pressing device to press the clip assembly 5 into the anchor ring 4, so that the outer side of the clip assembly 5 and the inner side of the anchor ring 4 are in close contact; then pass the anchor ring gland 6 through the middle through the through hole through the steel strand 7, so that the anchor ring gland 6 is tightened on the anchor ring 4 through threaded fitting;

[0056] S3, immerse the ends of the combined anchor and steel strand 7 together in the anti-corrosion material 8, so that the ends of the anchor and steel strand 7 are completely immersed in the anti-corrosion material 8, take out the anchor to dry and observe the anchor and steel strand 7 to ensure that the anti-corrosion material 8 is completely covered; the anti-corrosion material 8 wrapped around the outside of the equipment isolates the anchor from the air to prevent rust, and this method is simple to construct;

[0057] S4, the anti-corrosion anchor is retracted into the adjuster 1, and the adjuster 1 is away from one end of the steel strand 7 and passes through the fixing hole of the bracket beam 9. The adjustment seat 2 is put on the end of the adjuster 1, and a suitable pin hole is selected to insert the pin shaft 3 so that the pin shaft 3 is stuck in the slot on the adjustment seat 2. When one side of the steel strand 7 is pulled, the entire anchor structure can be fixed on the photovoltaic bracket beam 9.

[0058] S5, the fixed end of the steel strand 7 is fixed to the support beam 9 through the above steps, and the tensioning end is fixed to the corresponding position through the above steps after prestressing the steel strand 7. At this time, the installation is completed.

[0059] S6. During the later inspection and maintenance, the state of the anti-corrosion material 8 on the anchor and the tension state of the steel strand 7 are observed to determine whether the installation hole position of the adjuster 1 needs to be adjusted and whether the anti-corrosion material 8 needs to be added. If the tension needs to be adjusted, the adjustment is performed by adjusting the pin shaft 3 through the pin holes of different step lengths on the adjuster 1.

[0060] S7, when the anchor or the steel strand 7 needs to be replaced, the anti-corrosion material 8 is heated to melt it and then removed, and the anchor is removed and replaced with a new one, and steps 2-5 are repeated.

[0061] Multiple groups of anchors can be used together.

[0062] The anticorrosive material is modified emulsified asphalt, including: 54% by mass of AH-70# asphalt, 1.25% by mass of SBT emulsifier, 0.06% by mass of methyl cellulose, and other requirements are: PH index: 1.8-2.0, asphalt heating temperature: 145-140°C, soap solution temperature: 40-45°C, finished product outlet temperature: 65-80°C. This material is in liquid state, and only one drop is dropped every ten years or so, which can meet the shelf life of most photovoltaic equipment.

[0063] This solution simplifies the construction process and reduces the difficulty of construction. In view of the large construction volume and high repetitiveness of photovoltaic projects, the present invention is an anchor structure that is easy to install, adjust and disassemble, improves the connection between the anchor and the support beam, and realizes quick installation to reduce the complex operations and technical requirements during the construction process. At the same time, by optimizing the construction process, the construction efficiency and quality are improved.

[0064] This solution enhances the convenience and operability of later maintenance. Considering the difficulty of later maintenance of anti-corrosion structures in the prior art, the present invention is an anchor structure that is easy to inspect and repair, which facilitates users to quickly identify and solve potential problems, while reducing maintenance costs and time. For projects with poor geology, secondary tensioning can be carried out after 3 years of settlement to ensure the safety of the direct structure.

[0065] In order to overcome the limitations and shortcomings of existing anti-corrosion technology, the new anti-corrosion material developed by the present invention has excellent corrosion resistance, stability and environmental protection, and can meet the long-term operation requirements of the photovoltaic support system. By replacing the anti-corrosion material and innovating the anti-corrosion technology, the present invention will further improve the anti-corrosion effect and service life of the anchor.

[0066] The above is a detailed description of the embodiments of the present invention, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A steel strand anchor structure, characterized in that: It comprises an adjuster (1), an adjusting seat (2), a pin shaft (3) and an anchor; The bottom end of the regulator (1) is a holder with a connecting hole, and a plurality of pin holes are provided on the side wall of the regulator (1). The regulating seat (2) is an annular structure, and the regulating seat (2) can be sleeved on the outside of the regulator (1). The side wall or the outer end of the regulating seat (2) is provided with a slot in which a pin shaft (3) can be placed. The pin shaft (3) can be stuck in the slot after passing through the pin hole, and the anchor is placed above the holder.

2. The steel strand anchor structure according to claim 1, characterized in that: The anchor comprises an anchor ring (4), a clip assembly (5) and an anchor ring pressure cover (6); the clip assembly (5) is a hollow truncated cone structure composed of two or three pieces; an annular groove is arranged on the outer side of the bottom of the clip assembly (5); a metal wire is embedded in the connecting groove; the metal wire connects the two or three pieces of the clip assembly (5) in series; the anchor ring (4) is also an annular structure; the through hole inside the anchor ring (4) is truncated cone-shaped and matches the clip assembly (5); the anchor ring pressure cover (6) is a cap-shaped structure; the internal thread of the side wall of the anchor ring pressure cover (6) matches the external thread of the anchor ring (4); and a through hole is arranged on the top of the anchor ring pressure cover (6).

3. The steel strand anchor structure according to claim 1, characterized in that: The regulator (1) is a hollow columnar body or a plate-shaped 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 column, a quadrangular column or a cylinder, and the pin holes on its side wall are distributed in pairs.

5. The steel strand anchor structure according to claim 2, characterized in that: The cap-shaped structure of the anchor ring gland (6) is the structure of an ordinary mineral water bottle cap.

6. The steel strand anchor structure according to claim 1, characterized in that: The card seat is 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.

8. The anticorrosion and construction method of the steel strand anchor structure according to claim 1 or 2, characterized in that: The following steps are involved: S1, inserting the end of the steel strand (7) into the connection hole of the adjuster (1), and then passing the anchor ring (4) through the steel strand (7); S2, clamping the steel strand (7) with the clip assembly (5), and using a clip pressing device to press the clip assembly (5) into the anchor ring (4), so that the outer side surface of the clip assembly (5) and the inner side surface of the anchor ring (4) are in close contact; then, the anchor ring pressure cover (6) is passed through the steel strand (7) through the middle through hole, so that the anchor ring pressure cover (6) is tightened on the anchor ring (4) through threaded engagement; S3, immersing the combined 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), taking out the anchor to dry and observing the anchor and the steel strand (7) to ensure that the anti-corrosion material (8) is completely covered; S4, the anti-corrosion anchor is retracted into the adjuster (1), so that the steel strand (7) is clamped on the connection hole through the anchor, and the adjuster (1) is away from one end of the steel strand (7) and passes through the fixing hole of the bracket cross beam (9), and the adjustment seat (2) is sleeved on the end of the adjuster (1), and a suitable pin hole is selected to insert the pin shaft (3), so that the pin shaft (3) is clamped in the slot on the adjustment seat (2). When one side of the steel strand (7) is pulled, the entire structure can be fixed on the bracket cross beam (9); S5, the fixed end of the steel strand (7) is fixed to the support crossbeam (9) through the above steps, and the tensioning end is fixed to the corresponding position through the above steps after prestressing the steel strand (7), and the installation is now completed; S6, during the later inspection and maintenance, by observing the state of the anti-corrosion material (8) on the anchor and the tension state of the steel strand (7), it is judged whether it is necessary to adjust the installation hole position of the regulator (1) and whether it is necessary to add the anti-corrosion material (8); if the tension amount needs to be adjusted, it is adjusted by adjusting the pin shaft (3) through the pin holes of different step lengths on the regulator (1); S7, when the anchor or the steel strand (7) needs to be replaced, the anti-corrosion material (8) is heated to melt it and then removed, and the anchor is removed and replaced with a new one, and steps 2-5 are repeated.

9. The anticorrosion and construction method of the steel strand anchor structure according to claim 1, characterized in that: The anti-corrosion material is modified emulsified asphalt or epoxy coal tar paint.

10. The anti-corrosion and construction method of the steel strand anchor structure according to claim 1, characterized in that: The modified emulsified asphalt includes: 54% by mass of AH-70# asphalt, 1.25% by mass of SBT emulsifier, 0.06% by mass of methyl cellulose, and other requirements are: PH index: 1.8-2.0, asphalt heating temperature: 145-140°C, soap solution temperature: 40-45°C, finished product outlet temperature: 65-80°C.

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