Overload protection tightener suitable for photovoltaic power generation support

Abstract

The overload protection tightener comprises a tightener body and a buffer section, the tightener body comprises a bolt A, a bolt B and an adjuster, the adjuster is arranged between the bolt A and the bolt B, the buffer section comprises a wire clamp, a steel cable and a spring, the wire clamp is arranged on the outer side of the steel cable, the spring is arranged at one end of the steel cable, and the spring is arranged on the other end of the steel cable. The other end of the steel cable penetrates through the wire clamp. According to the utility model, when overload occurs, the overload protection section of the hook bolt is disconnected, and after the hook bolt with the overload protection section is disconnected, the buffer section keeps the continuity of the flexible support and does not collapse in a large area due to the disconnection of the bolt, so that the photovoltaic panel is protected from being broken, and the bolt is directly replaced and a wire is tightened again after the disconnection. Therefore, the photovoltaic panel can be quickly reset.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the technical field of photovoltaic power generation brackets. Specifically, it relates to an overload protection wire tightener applicable to photovoltaic power generation brackets. Background Art

[0002] With the development of photovoltaic power generation technology, according to different application scenarios, flexible brackets have emerged. Due to their advantages such as light weight, bendability, and easy installation, they are widely used in actual projects. However, in recent years, problems have occurred frequently where the operating load of flexible brackets exceeds the design load due to extreme weather conditions, resulting in damaged pile foundations and serious series connection accidents, causing huge economic losses to production work.

[0003] Regarding the reasons for the series connection accidents of flexible photovoltaic power generation brackets, through on-site investigations, it was found that the steel cables supporting the photovoltaic panels were all intact and did not break, but the pile foundations bearing the main load were pulled down, resulting in a series of toppled piles, thus causing a large area of photovoltaic panel collapses and a long production recovery period. Therefore, an overload protection wire tightener applicable to photovoltaic power generation brackets was designed. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an overload protection wire tightener applicable to photovoltaic power generation brackets.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] An overload protection wire tightener applicable to a photovoltaic power generation bracket of the utility model includes a wire tightener and a buffer section. The wire tightener includes bolt A, bolt B, and a regulator. The regulator is arranged between bolt A and bolt B. The buffer section includes a wire clamp, a steel cable, and a spring. The wire clamp is arranged outside the steel cable. The spring is arranged at one end of the steel cable. The other end of the steel cable penetrates through the wire clamp.

[0007] As a preferred technical solution of the utility model, both bolt A and bolt B are in threaded cooperation with the regulator. A hanging ring is arranged at the other end of bolt A, and a hook portion is arranged at the other end of bolt B.

[0008] As a preferred technical solution of the utility model, a hexagonal bolt is arranged at the rear side of the hook portion, and an overload protection section is arranged between the hexagonal bolt and the hook portion.

[0009] As a preferred technical solution of the utility model, steel cables are connected to the inner sides of both the hook portion and the hanging ring.

[0010] As a preferred technical solution of the utility model, two steel cables are arranged on the inner side of the wire clamp, wherein the other single end of the steel cable connected to the spring passes through the wire clamp and then passes out of the wire clamp in the reverse direction, and the passing portion of the steel cable at the wire clamp is curved.

[0011] As a preferred technical solution of the utility model, the wire clamp is designed as a wedge-shaped wire clamp, and two threading holes are provided on the wire clamp for the steel cable to pass through.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model discloses that when overload occurs, the overload protection section of the hook bolt is disconnected. After the hook bolt with the overload protection section is disconnected, the buffer section maintains the continuity of the flexible bracket, and will not collapse on a large scale due to the disconnection of the bolt, thereby protecting the photovoltaic panel from being damaged. After the disconnection, the bolt can be directly replaced and the line can be re-tightened to quickly put the photovoltaic panel back in place, thereby solving the problem that the operating load of the flexible bracket exceeds the design load due to extreme weather, thereby damaging the pile foundation, causing serious reverse string accidents, and causing huge economic losses to production work.

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic side structure diagram of the wire clamp;

[0020] Figure 4 It is a schematic plan structure diagram of the wire clamp in directions A and B;

[0021] In the figure: 1. Bolt A; 11. Hoop; 2. Bolt B; 21. Hexagon bolt; 22. Overload protection section; 23. Hook part; 3. Regulator; 4. Wire clamp; 5. Steel cable; 6. Spring. Specific implementation mode

[0022] As Figures 1-3 shown, the present utility model provides an overload protection wire tightener applicable to a photovoltaic power generation bracket, which includes a wire tightener and a buffer section. The wire tightener includes a bolt A1, a bolt B2 and a regulator 3. The regulator 3 is arranged between the bolt A1 and the bolt B2. The buffer section includes a wire clamp 4, a steel cable 5 and a spring 6. The wire clamp 4 is arranged on the outer side of the steel cable 5. The spring 6 is arranged at one end of the steel cable 5. The other end of the steel cable 5 penetrates through the wire clamp 4.

[0023] Further, in this embodiment, both the bolt A1 and the bolt B2 are in threaded fit with the regulator 3. A hoop 11 is arranged at the other end of the bolt A1, and a hook part 23 is arranged at the other end of the bolt B2.

[0024] In this embodiment, a hexagon bolt 21 is arranged at the rear side of the hook part 23, and an overload protection section 22 is arranged between the hexagon bolt 21 and the hook part 23.

[0025] In this embodiment, steel cables 5 are arranged on the inner sides of both the hook part 23 and the hoop 11.

[0026] In this embodiment, two steel cables 5 are arranged on the inner side of the wire clamp 4. Among them, after the other single end part of the steel cable 5 connected to the spring 6 passes through the wire clamp 4, it reversely passes out of the wire clamp 4 and faces the inner side. The part where the steel cable 5 passes out at the wire clamp 4 is in a bent shape.

[0027] In this embodiment, the wire clamp 4 is designed as a wedge-shaped wire clamp, and two wire passing holes are opened on the wire clamp 4 for the steel cable 5 to penetrate. Through the design of the wedge-shaped wire clamp, when subjected to tension, the wedge-shaped wire clamp will further press the steel, thereby providing a greater clamping force.

[0028] Specifically, the wire tightener is composed of a bolt A1 with a hoop 11, a bolt B2 with an overload protection section 22 and a hook part 23, and a regulator 3. The use of the bolt A1 and the bolt B2 is adjusted through the regulator 3. A buffer section is composed of a wire clamp 4, a steel cable 5 and a spring 6. The wire clamp 4 fixes the steel bar on the bolt, and then the steel cable 5 of the buffer section is arranged in the wire clamp 4, and a spring 6 is fixed between the steel cables 5 of the two buffer sections;

[0029] During operation, use a wrench to fix the hook bolt and connect it to the steel cable 5 of the photovoltaic power generation support. When tightening the wire, rotate the adjuster 3 to avoid excessive torque on the bolt and facilitate the replacement of the bolt in the later stage. According to the strength of the steel, an overload protection section 22 with a diameter corresponding to the failure stress is turned on the hook bolt. When an overload occurs in extreme weather, this section will directly break. After the hook bolt breaks, the buffer section 6 maintains the continuity of the flexible support steel cable, preventing large-area collapse due to the bolt break. The buffer section 6 stretches the spring to buffer the instantaneous load, while increasing the sag of the photovoltaic support steel cable, thereby quickly reducing the lateral tension on the pile foundation. While protecting the pile foundation, it also prevents large-area damage to the photovoltaic panels due to wire breakage;

[0030] The wire clamp 4 is an integrated wedge-shaped wire clamp, which is processed from a whole piece of metal. The upper wire-passing hole is used to pass the steel cable of the photovoltaic support, and it is fixed on the steel cable of the photovoltaic support by a pressing method. The lower wedge-shaped hole is used to pass the steel cable of the buffer structure. Since this part of the steel cable passes from side B to side A and then passes back to side B in the reverse direction, and the tension is on side B during operation, the steel cable will be tightened and cannot be pulled out from side B, achieving the purpose of fixing the steel cable. The advantage of this integrated wire clamp is that it does not require bolt installation, has a simple structure. The cross-section of an ordinary wedge-shaped wire clamp is C-shaped, while the cross-section of this integrated wedge-shaped wire clamp is 8-shaped, with higher strength, greater tension-bearing capacity. After installation, the contact surface with the steel cable is larger than that of the bolt-installed wire clamp, the force is evenly distributed, and the damage to the steel cable is small. And it is not easy to loosen during operation compared with the bolt type.

[0031] The components such as bolt A1, lifting ring 11, bolt B2, hexagon bolt 21, overload protection section 22, hook part 23, adjuster 3, wire clamp 4, steel cable 5, spring 6 of the present utility model are all common standard parts or parts known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0033] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of these features.

[0034] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An overload protection wire tightener applicable to a photovoltaic power generation support, characterized in that, It includes a wire tightener and a buffer section. The wire tightener includes bolt A (1), bolt B (2) and a regulator (3). The regulator (3) is arranged between bolt A (1) and bolt B (2). The buffer section includes a wire clamp (4), a steel cable (5) and a spring (6). The wire clamp (4) is arranged on the outer side of the steel cable (5). The spring (6) is arranged at one end of the steel cable (5). The other end of the steel cable (5) penetrates through the wire clamp (4).

2. The overload protection wire tightener applicable to a photovoltaic power generation bracket according to claim 1, characterized in that, Both bolt A (1) and bolt B (2) are in threaded fit with the regulator (3). A lifting ring (11) is arranged at the other end of bolt A (1), and a hook portion (23) is arranged at the other end of bolt B (2).

3. The overload protection wire tightener applicable to a photovoltaic power generation support according to claim 2, characterized in that, A hexagonal bolt (21) is arranged at the rear side of the hook portion (23), and an overload protection section (22) is arranged between the hexagonal bolt (21) and the hook portion (23).

4. An overload protection wire tightener applicable to a photovoltaic power generation bracket according to claim 3, characterized in that, The inner sides of the hook portion (23) and the lifting ring (11) are both connected to the steel cable (5).

5. The overload protection wire tightener applicable to a photovoltaic power generation bracket according to claim 1, characterized in that, Two steel cables (5) are arranged inside the wire clamp (4). Among them, after the other single end portion of the steel cable (5) connected to the spring (6) passes through the wire clamp (4), it reversely passes out of the wire clamp (4). The passing-out portion of the steel cable (5) at the wire clamp (4) is in a bent shape.

6. An overload protection applicable to a photovoltaic power generation bracket according to claim 1 Tightening device, characterized in that, The wire clamp (4) is designed as a wedge-shaped wire clamp, and two wire passing holes are formed in the wire clamp (4) for the steel cable (5) to penetrate through.

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