Photovoltaic wind-resistant flexible zipper device

Abstract

The utility model provides a photovoltaic wind-resistant flexible zipper device which comprises a wheel assembly (1), a fastening device (2), an adjustable threaded locking rod (3), an anchoring point (4) and a steel cable (5), the fastening device (2) can be partially located in the wheel assembly (1) and is detachably fixed to the wheel assembly (1) through the adjustable threaded locking rod (3), and the anchoring point (4) is static relative to the ground. The steel cable (5) penetrates through the photovoltaic module (6) and is limited by the anchoring point (4), and the steel cable (5) is locked through the fastening device (2). According to the photovoltaic wind-resistant flexible zipper device disclosed by the invention, the steel cable is locked through the fastening device and the wheel assembly, so that the stability of a photovoltaic power station in extreme weather is improved, and huge loss caused by damage of a photovoltaic assembly is avoided.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic wind-resistant flexible zipper device. Background Technology

[0002] With global warming and the increasing frequency of extreme weather events, the overall wind resistance stability of photovoltaic (PV) power plants is facing increasingly severe challenges. The wind-resistant design of PV power plants, which often involve investments of billions or even tens of billions of yuan, is becoming increasingly important. Especially in the construction of large-scale PV power plants, wind-resistant designs typically use intermediate and edge clamps to connect individual PV modules. If the intermediate clamp of one module detaches or loosens, a strong wind could lift all the PV modules, causing enormous damage. While addressing the issue of localized strong winds, the power plant design does not typically cover the overall wind resistance of the PV power plant under extreme weather conditions.

[0003] CN 106364751 U discloses a novel single-layer parallel suspension photovoltaic support system, comprising multiple sets of photovoltaic module mounting supports, each composed of two parallel transverse cables. Both ends of each set of photovoltaic module mounting supports are simultaneously fixed to the tops of two vertically parallel steel frames via two crossbeams perpendicular to the transverse cables. The bottom ends of the steel frames are fixed to photovoltaic power station site carriers at both ends on the ground. Each pair of adjacent transverse cables is connected and fixed by multiple stabilizing cables. At the lower part of the intersection of each transverse cable and stabilizing cable, one end of a wind-resistant cable is connected, and the other end of the wind-resistant cable is fixed to the photovoltaic power station site carrier located on the ground between the two steel frames. This prior art discloses that the wind-resistant cable connected at the lower part of the intersection of the transverse cable and stabilizing cable is fixed to the photovoltaic power station site carrier on the ground. However, this prior art does not disclose the locking mechanism of the transverse cables connected to the wind-resistant cable fixed to the photovoltaic power station site carrier, and it cannot determine whether the cooperation of the transverse cables, stabilizing cables, and wind-resistant cables can achieve better wind resistance.

[0004] Therefore, there is room for improvement in using steel cables to enhance the wind resistance of photovoltaic modules. Utility Model Content

[0005] One of the technical problems that this disclosure aims to solve is the overall wind resistance of photovoltaic systems under extreme localized strong wind conditions.

[0006] To address the aforementioned technical problems, this disclosure provides a photovoltaic wind-resistant flexible cable tie device, comprising:

[0007] A wheel assembly, comprising a first gear, a second gear meshing with the first gear, and a take-up reel fixedly connected to the second gear;

[0008] The fastening device may be partially located within the wheel assembly. The fastening device includes a fixed wire rear locking position, a movable wire front locking position, and a first locking position belt and a second locking position belt that respectively match the fixed wire rear locking position and the movable wire front locking position.

[0009] Adjustable wire locking rod, used to detachably secure the fastening device to the wheel assembly;

[0010] Anchor point, the anchor point is stationary relative to the ground;

[0011] The steel cable passes through the photovoltaic module and is restrained by anchor points. The steel cable is locked by a fastening device.

[0012] In some embodiments, the locking position after fixing the steel wire includes a first inner wire that matches the first locking position wire, and the locking position before the movable steel wire includes a second inner wire that matches the second locking position wire.

[0013] In some embodiments, the fastening device includes a first wire hole and a second wire hole, which are disposed on the fastening device and communicate with the rear locking position of the fixed steel wire and the front locking position of the movable steel wire, respectively.

[0014] In some embodiments, a third inner thread is provided at one end of the fastening device near the wheel assembly. The third inner thread passes vertically through the end of the fastening device, and the direction of the third inner thread is perpendicular to the direction of the second wire hole.

[0015] In some embodiments, the wheel assembly includes a handwheel, which is fixedly connected to the shaft of the first gear. Rotating the handwheel can drive the first gear to rotate, thereby driving the second gear to rotate.

[0016] In some embodiments, the wheel assembly includes a housing, a first gear, a second gear, a winding wheel, and a handwheel, all disposed within the housing. A first opening and a fourth inner thread are respectively provided on two adjacent sides of the housing, and a second opening is provided on the side of the housing opposite to the side where the first opening is located. The second opening is aligned with the first opening, and the fourth inner thread matches an adjustable wire locking rod.

[0017] In some embodiments, the wheel assembly includes an inner housing, which is disposed within the housing in close contact with the housing. A third opening and a fifth inner thread are respectively provided on two adjacent sides of the inner housing in close contact with the housing. A fourth opening is provided on the side of the inner housing opposite to the side where the third opening is located. The third opening and the fourth opening are aligned with the first opening and the second opening. A slot is provided on the side of the inner housing opposite to the side where the fifth inner thread is provided. The slot is aligned with the fifth inner thread.

[0018] In some embodiments, the adjustable wire locking rod has an outer wire that is provided along the entire length of the adjustable wire locking rod; corresponding tensioning holes are provided on two opposite sides of the photovoltaic module.

[0019] In some embodiments, the anchoring points include a first anchoring point, a second anchoring point, and a third anchoring point. The steel cable includes a fixed steel cable, a movable steel cable, and multiple segmented steel cables. One end of the fixed steel cable and one end of the movable steel cable are respectively introduced from both ends of the fastening device. The other end of the fixed steel cable is connected to the first anchoring point. The other end of the movable steel cable passes through the corresponding parts of the photovoltaic module in sequence and is connected to the second anchoring point. One end of the segmented steel cable is connected to the movable steel cable, and the other end is fixedly connected to the corresponding third anchoring point.

[0020] In some embodiments, the second anchor point is a triangular connector, one end of which is fixed to the first wall and the other end is connected to one end of a movable steel cable; the first anchor point is a triangular connector, one end of which is fixed to the second wall and the other end of which is connected to one end of a fixed steel cable, the other ends of the movable steel cable and the other ends of the fixed steel cable are respectively locked into fastening devices; the third anchor point is a quadrilateral connector, one end of which is fixed to the ground and the other end of which is connected to one end of a segmented steel cable, the other end of which is connected to the movable steel cable.

[0021] Through the above technical solution, the photovoltaic wind-resistant flexible cable tie device provided in this disclosure locks the steel cable with fastening device and wheel assembly, and applies downward tension to the photovoltaic module through anchoring point and steel cable, thereby solving the technical problem that all photovoltaic modules are lifted up due to the detachment or loosening of the middle pressure block of the photovoltaic module under extreme weather conditions, improving the stability of photovoltaic power station under extreme weather conditions, and avoiding huge losses caused by damage to photovoltaic modules. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a partial structural diagram of a photovoltaic module when the photovoltaic wind-resistant flexible zipper device disclosed in this embodiment is used on a photovoltaic module string.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Wheel assembly; 11. First gear; 12. Second gear; 13. Rope winding wheel; 14. Handwheel; 15. Housing; 16. Inner housing; 17. Slot; 2. Fastening device; 21. Rear locking position for fixed steel wire; 22. Front locking position for movable steel wire; 3. Adjustable wire locking rod; 4. Anchor point; 41. First anchor point; 42. Second anchor point; 43. Third anchor point; 5. Steel cable; 51. Fixed steel cable; 52. Movable steel cable; 53. Segmented steel cable; 6. Photovoltaic module; 7. Tensioning hole. Detailed Implementation

[0026] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0028] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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 disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0030] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0031] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0033] like Figure 1 As shown, the photovoltaic wind-resistant flexible cable device provided in this disclosure includes a wheel assembly 1, a fastening device 2, an adjustable wire-locking rod 3, an anchor point 4, and a steel cable 5. The fastening device 2 can be partially located inside the wheel assembly 1 and is detachably fixed to the wheel assembly 1 by the adjustable wire-locking rod 3. The anchor point 4 is stationary relative to the ground. The steel cable 5 passes through the photovoltaic assembly 6 and is restricted by the anchor point 4. The steel cable 5 is locked by the fastening device 2.

[0034] Compared with existing technologies, the photovoltaic wind-resistant flexible cable tie device disclosed herein locks the steel cable 5 through the fastening device 2 and the wheel assembly 1, and applies tension to the photovoltaic module 6 through the anchor point 4 and the steel cable 5, thereby solving the technical problem of all photovoltaic modules 6 being lifted up due to the detachment or loosening of the middle pressure block of the photovoltaic module 6 under extreme weather conditions. In addition, the combination of the fastening device 2 and the wheel assembly 1 solves the problems of difficult operation and tightening of traditional tightening devices.

[0035] In some embodiments, the fastening device 2 includes a fixed wire rear locking position 21, a movable wire front locking position 22, and a first locking position tape (not shown) and a second locking position tape (not shown) that respectively match the fixed wire rear locking position 21 and the movable wire front locking position 22. The first locking position tape cooperates with the fixed wire rear locking position 21 to lock the steel cable 5 passing through the fixed wire rear locking position 21, and the second locking position tape cooperates with the movable wire front locking position 22 to lock the steel cable 5 passing through the movable wire front locking position 22. This design enables the fastening device 2 to lock the steel cable 5.

[0036] In some embodiments, the fixed wire rear locking position 21 includes a first inner wire (not shown) that matches the first locking position wire, and the movable wire front locking position 22 includes a second inner wire (not shown) that matches the second locking position wire. This design allows the steel cable 5 to be locked in the fixed wire rear locking position 21 and the movable wire front locking position 22, respectively.

[0037] In some embodiments, as Figure 1 As shown, the fastening device 2 is a six-hole assembly, including three fixed wire rear locking positions 21, three movable wire front locking positions 22, three first locking position wires, and three second locking position wires. Each fixed wire rear locking position 21 includes a first inner wire, and each movable wire front locking position 22 includes a second inner wire. The three first inner wires respectively match the three first locking position wires, and the three second inner wires respectively match the three second locking position wires. This design enables the fastening device 2 to lock the steel cable 5.

[0038] In some embodiments, the fastening device 2 includes a first wire hole (not shown) and a second wire hole (not shown) disposed thereon, the first wire hole and the second wire hole communicating with the fixed wire rear locking position 21 and the movable wire front locking position 22, respectively. The steel cable 5 can pass through the first wire hole in the fixed wire rear locking position 21, and the steel cable 5 can pass through the second wire hole in the movable wire front locking position 22. This design secures the steel cable 5 within the fastening device 2.

[0039] In some embodiments, the first guide hole and the second guide hole are arranged parallel to each other. This design is beneficial for tensioning the steel cable 5.

[0040] In some embodiments, a third inner thread (not shown) is provided at one end of the fastening device 2 near the wheel assembly 1. The third inner thread passes vertically through the end of the fastening device 2, and its direction is perpendicular to the direction of the second wire hole. The third inner thread is designed to match the adjustable wire locking rod 3. This design enables a detachable and fixed connection between the fastening device 2 and the wheel assembly 1.

[0041] In some embodiments, the wheel assembly 1 includes a first gear 11, a second gear 12 meshing with the first gear 11, and a take-up reel 13 fixedly connected to the second gear 12. The first gear 11 is a pinion, and the second gear 12 is a gear; the meshing of the first gear 11 and the second gear 12 amplifies the torque. By fixing the take-up reel 13 to the second gear 12, the rotation of the second gear 12 drives the rotation of the take-up reel 13, thereby tightening or unwinding the steel cable 5 from the take-up reel 13. The take-up reel 13 can be fixedly mounted on one side of the second gear 12 around the axis of the second gear 12 and spaced apart from the teeth of the second gear 12. This design enables the tightening and unwinding of the steel cable 5.

[0042] In some embodiments, the wheel assembly 1 includes a handwheel 14, which is fixedly connected to the shaft of the first gear 11. Rotating the handwheel 14 drives the first gear 11 to rotate, which in turn drives the second gear 12 to rotate, thus causing the winding wheel 13 to rotate accordingly. The handwheel 14 can be rotated manually or with a power tool. In some embodiments, such as... Figure 1 As shown, when the second gear 12 is positioned to the right of the first gear 11 and the steel cable 5 is wound around the second gear 12 from right to left onto the winding reel 13 fixed to the second gear 12, the counterclockwise rotating handwheel 14 drives the first gear 11 to rotate counterclockwise, which in turn drives the second gear 12 to rotate clockwise, thereby tightening the steel cable 5. Conversely, the clockwise rotating handwheel 14 drives the first gear 11 to rotate clockwise, which in turn drives the second gear 12 to rotate counterclockwise, thereby loosening the steel cable 5. This design uses gears to amplify torque to tighten or loosen the steel cable 5, saving manpower and being easy to operate.

[0043] In some embodiments, the wheel assembly 1 includes a housing 15, within which a first gear 11, a second gear 12, a winding reel 13, and a handwheel 14 are all disposed. A first opening (not shown) and a fourth inner thread (not shown) are respectively provided on two adjacent sides of the housing 15, the fourth inner thread passing through the housing 15. A second opening (not shown) is provided on the side of the housing 15 opposite to the side containing the first opening, aligned with the first opening, and used to receive the steel cable 5. The fourth inner thread is designed to mate with an adjustable wire-locking rod 3. A fastening device 2 is partially located within the housing 15 through the first opening. The fastening device 2 is detachably fixed to the wheel assembly 1 by passing the adjustable wire-locking rod 3 through the fourth and third inner threads. This design achieves a detachable and fixed connection between the fastening device 2 and the wheel assembly 1.

[0044] In some embodiments, the wheel assembly 1 includes an inner housing 16 disposed within a housing 15, with a third opening (not shown) and a fifth inner thread (not shown) respectively provided on two adjacent sides of the inner housing 16 adjacent to the housing 15. A fourth opening (not shown) is provided on the side of the inner housing 16 opposite to the side containing the third opening, aligned with the third opening, and used to receive the steel cable 5. The third and fourth openings are aligned with the first and second openings of the housing 15, respectively, for simultaneously partially placing the fastening device 2 within both the housing 15 and the inner housing 16. The fifth inner thread is aligned with the fourth inner thread. This design ensures that the adjustable wire locking rod 3 passes through the fourth and fifth inner threads, thereby detachably securing the fastening device 2 to the wheel assembly 1.

[0045] In some embodiments, a slot 17 is provided on the side of the inner housing 16 opposite to the side where the fifth inner thread is provided, and the slot 17 is aligned with the fifth inner thread. The slot 17 is used to receive one end of the adjustable wire-locking rod 3, while the other end of the adjustable wire-locking rod 3 passes through the inner housing 16 and the housing 15. This design enables the fastening device 2 to be detachably and securely connected to the wheel assembly 1 via the adjustable wire-locking rod 3.

[0046] In some embodiments, a slot 17 is provided inside the housing 15, and the slot 17 is aligned with the fourth inner thread of the housing 15. The slot 17 can be provided inside the housing 15 by welding.

[0047] In some embodiments, the slot 17 has an inner thread.

[0048] In some embodiments, the adjustable wire-locking rod 3 has an outer thread that extends along its entire length, thus allowing it to be adapted to fastening devices 2 of different sizes. The length of the adjustable wire-locking rod 3 is greater than the distance between the slot 17 and the fourth inner thread. This design enables the adjustable wire-locking rod 3 to adjust the fastening of fastening devices 2 of different sizes.

[0049] In some embodiments, the threaded locking rod 3 can be adjusted to a fully threaded hexagonal bolt.

[0050] In some embodiments, the anchor point 4 includes a first anchor point 41, a second anchor point 42, and a third anchor point 43. The first anchor point 41 and the second anchor point 42 are respectively disposed on the outer side of the photovoltaic modules 6 at both ends of the photovoltaic module string. The third anchor point 43 is disposed between two adjacent photovoltaic modules 6 in the middle of the photovoltaic module string and between each of the photovoltaic modules 6 at both ends and its inner adjacent photovoltaic modules 6. The first anchor point 41, the second anchor point 42, and the third anchor point 43 are stationary relative to the ground.

[0051] In some embodiments, the steel cable 5 includes a fixed steel cable 51, a movable steel cable 52, and multiple segmented steel cables 53. One end of the fixed steel cable 51 and one end of the movable steel cable 52 are respectively introduced from both ends of the fastening device 2. The other end of the fixed steel cable 51 is connected to the first anchor point 41, and the other end of the movable steel cable 52 passes through the corresponding parts of the photovoltaic module 6 in sequence and is connected to the second anchor point 42. One end of each segmented steel cable 53 is connected to the movable steel cable 52, and the other end is fixedly connected to the corresponding third anchor point 43. This design enables the steel cable 5 to position the photovoltaic module 6. Figure 1 For clarity, only the connection between the steel cable 5 and its corresponding fastening device 2 is shown, and the wheel assembly 1 is shown in the state of tightening the movable steel cable 52. The wheel assembly 1 is detachable and can be removed after the movable steel cable 52 is tightened.

[0052] In some embodiments, the fixed steel cable 51 passes through the first wire hole and the fixed steel wire rear locking position 21, is introduced into the fastening device 2 and locked in the fixed steel wire rear locking position 21, and the movable steel cable 52 passes through the second wire hole and the movable steel wire front locking position 22, is introduced into the fastening device 2 and locked in the movable steel wire front locking position 22.

[0053] In some embodiments, one end of the segmented steel cable 53 is connected to the movable steel cable 52 via a clip (not shown), thereby detachably fixing one end of the segmented steel cable 53 to the movable steel cable 52. This design ensures that the segmented steel cable 53 and the movable steel cable 52 are relatively fixed.

[0054] In some embodiments, the fixed steel cable 51, the movable steel cable 52, and the segmented steel cable 53 are all sheathed flexible steel cables. This design ensures that the steel cable 5 has a longer service life and is less prone to rust.

[0055] In some embodiments, the movable steel cable 52 is connected to both ends of each segmented steel cable 53 and a corresponding third anchor point 43, respectively, and tension is applied to the movable steel cable 52 when the segmented steel cables 53 are tensioned, thereby restricting the movement of the movable steel cable 52. The fixed steel cable 51 and the movable steel cable 52 are tensioned by locking one end of the fixed steel cable 51 to one end of the fastening device 2 and connecting the other end to the first anchor point 41, and locking one end of the movable steel cable 52 to the other end of the fastening device 2 and connecting the other end to the second anchor point 42. The number of third anchor points 43 between two adjacent photovoltaic modules 6 in the middle of the photovoltaic module string and between each of the two end photovoltaic modules 6 and its inner adjacent photovoltaic module 6 is set according to the length between two adjacent photovoltaic modules 6. The steel cables 5 and the anchor points 4 prevent the photovoltaic modules 6 from being dislodged and lifted. This design ensures the stability of the photovoltaic modules 6 and improves wind resistance.

[0056] In some embodiments, when a first wall (not shown) and a second wall (not shown) are respectively provided on the outer sides of the photovoltaic modules 6 at both ends of the photovoltaic module string, the first anchor point 41 and the second anchor point 42 are triangular connectors, and the third anchor point 43 is a quadrilateral connector. One end of the first anchor point 41 is fixed to the second wall and the other end is connected to one end of the fixed steel cable 51. One end of the second anchor point 42 is fixed to the first wall and the other end is connected to one end of the movable steel cable 52. The other ends of the movable steel cable 52 and the fixed steel cable 51 are respectively locked into the fastening device 2. One end of the third anchor point 43 is fixed to the ground and the other end is connected to one end of the segmented steel cable 53. The other end of the segmented steel cable 53 is connected to the movable steel cable 52. This design ensures that the steel cable 5 is firmly connected to the first wall, the second wall, and the ground.

[0057] In some embodiments, the third anchor point 43 is fixed to the ground as follows: in the case of muddy ground, foundation piles are first driven into the ground, and then the third anchor point 43 is welded to the foundation piles. The foundation piles can be channel steel or angle iron, with a depth of not less than 70 cm into the ground; in the case of concrete ground, the third anchor point 43 can be directly fixed to the concrete ground with expansion bolts. This design ensures that the segmented steel cable 53 is firmly connected to the ground.

[0058] In some embodiments, when there is no wall on the outside of the photovoltaic modules 6 at both ends of the photovoltaic module string, the first anchor point 41, the second anchor point 42, and the third anchor point 43 are all quadrilateral connectors. A first foundation pile and a second foundation pile are respectively provided on the outside of the photovoltaic modules 6 at both ends of the photovoltaic module string. The first and second foundation piles can be channel steel, with a depth of two meters into the ground. One end of the first anchor point 41 is fixed to the second foundation pile, and the other end is connected to one end of the fixed steel cable 51. One end of the second anchor point 42 is fixed to the first foundation pile, and the other end is connected to one end of the movable steel cable 52. The other ends of the movable steel cable 52 and the fixed steel cable 51 are respectively locked into the fastening device 2. One end of the third anchor point 43 is fixed to the ground, and the other end is connected to one end of the segmented steel cable 53. The other end of the segmented steel cable 53 is connected to the movable steel cable 52. This design ensures that the steel cable 5 is firmly connected to the first foundation pile, the second foundation pile, and the ground.

[0059] In some embodiments, the photovoltaic module 6 has corresponding tension holes 7 on two opposite sides, through which the movable steel cable 52 passes to apply a clamping force to the photovoltaic module 6. This design ensures the stability of the photovoltaic module 6 and improves its wind resistance.

[0060] In some embodiments, a tensioning hole 7 is provided on the upper and lower parts of two opposite sides of the photovoltaic module 6, and the upper tensioning hole 7 and the lower tensioning hole 7 on the two sides correspond to each other, and the four tensioning holes 7 of the photovoltaic module 6 are located on the same horizontal plane. This design ensures that the steel cable 5 applies force evenly to the photovoltaic module 6.

[0061] In one example of a photovoltaic (PV) module string, a PV wind-resistant flexible zipper device is used. The PV wind-resistant flexible zipper device includes a wheel assembly 1, two fastening devices 2, an adjustable wire locking rod 3, two steel cables 5, a first anchor point 41, a second anchor point 42, and a third anchor point 43. Each steel cable 5 includes a fixed steel cable 51, a movable steel cable 52, and multiple segmented steel cables 53. For simplicity, Figure 1 The image shows a fixed steel cable 51, a movable steel cable 52, and a segmented steel cable 53, as well as a fastening device 2. Another steel cable 5 is simplified, and the fastening device 2 is omitted. One end of the fixed steel cable 51 is introduced through the first wire hole of the fastening device 2 and locked in the locking position 21 after fixing the steel wire. The other end of the fixed steel cable 51 is fixedly connected to the first anchor point 41. One end of the movable steel cable 52 is introduced through the second wire hole of the fastening device 2 and passes through the locking position 22 before the movable steel wire. The other end of the movable steel cable 52 passes sequentially through the upper tensioning hole 7 of each photovoltaic module 6 in the photovoltaic module string and is fixedly connected to the second anchor point 42. One end of the segmented steel cable 53 is connected to the movable steel cable 52, and the other end is fixedly connected to the corresponding third anchor point 43. The wheel assembly 1 is positioned to cover the connection between the fastening device 2 and the fixing cable 51, with the first opening of the housing 15 and the third opening of the inner housing 16 accommodating one end of the fastening device 2, and the second opening of the housing 15 and the fourth opening of the inner housing 16 accommodating the fixing cable 51. One end of the adjustable wire locking rod 3 passes through the fourth inner wire of the housing 15, the fifth inner wire of the inner housing 16, and the third inner wire of the fastening device 2 and is accommodated in the slot 17, while the other end is located between the fourth and fifth inner wires, thereby detachably fixing the fastening device 2 to the wheel assembly 1. The movable cable 52 passes through the second wire hole and the movable wire front locking position 22 and is then wound onto the take-up reel 13. Turning the handwheel 14 drives the first gear 11 to rotate, which in turn drives the second gear 12 and the take-up reel 13 to rotate, tightening the movable cable 52, and then locking the movable cable 52 through the movable wire front locking position 22, thus tautning the cable 5. Remove the wheel assembly 1 by removing the adjustable wire locking rod 3, and perform the same operation on the other steel cable 5 and the other fastening device 2 to tighten the other steel cable 5. To unlock the steel cable 5, unlock the fixed steel cable 51 and the movable steel cable 52 respectively through the fixed wire rear locking position 21 and the movable steel wire front locking position 22, and then pull the fixed steel cable 51 and the movable steel cable 52 out of the fastening device 2. For clarity, in Figure 1The image shows only a portion of one end of a photovoltaic module string, including a photovoltaic module 6, a fixed steel cable 51, a movable steel cable 52, two segmented steel cables 53, the connection of the fixed steel cable 51 and the movable steel cable 52 to the fastening device 2, the connection of the segmented steel cables 53 to the movable steel cable 52, the connection of the fixed steel cable 51 to the first anchor point 41, the connection of the movable steel cable 52 to the second anchor point 42, and the connection of the segmented steel cables 53 to the third anchor point 43.

[0062] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0063] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A photovoltaic wind-resistant flexible zipper device, characterized in that, include: Wheel assembly (1), the wheel assembly (1) includes a first gear (11), a second gear (12) meshing with the first gear (11), and a take-up reel (13) fixedly connected to the second gear (12); Fastening device (2), which may be partially located within the wheel assembly (1), the fastening device (2) includes a fixed wire rear locking position (21), a movable wire front locking position (22), and a first locking position tape and a second locking position tape that respectively match the fixed wire rear locking position (21) and the movable wire front locking position (22); An adjustable wire locking rod (3) is used to detachably fix the fastening device (2) to the wheel assembly (1). Anchor point (4), which is stationary relative to the ground; A steel cable (5) passes through a photovoltaic module (6) and is restricted by the anchor point (4), and the steel cable (5) is locked by the fastening device (2).

2. The photovoltaic wind-resistant flexible cable device according to claim 1, characterized in that, The fixed steel wire rear locking position (21) includes a first inner wire that matches the first locking position wire, and the movable steel wire front locking position (22) includes a second inner wire that matches the second locking position wire.

3. The photovoltaic wind-resistant flexible zipper device according to claim 1, characterized in that, The fastening device (2) includes a first wire hole and a second wire hole. The first wire hole and the second wire hole are disposed on the fastening device (2) and are respectively connected to the rear locking position (21) of the fixed steel wire and the front locking position (22) of the movable steel wire.

4. The photovoltaic wind-resistant flexible cable tie device according to claim 3, characterized in that, The fastening device (2) is provided with a third inner thread at one end near the wheel assembly (1). The third inner thread passes vertically through the end of the fastening device (2), and the direction of the third inner thread is perpendicular to the direction of the second wire hole.

5. The photovoltaic wind-resistant flexible zipper device according to claim 1, characterized in that, The wheel assembly (1) includes a handwheel (14), which is fixedly connected to the shaft of the first gear (11). By rotating the handwheel (14), the first gear (11) can be driven to rotate, thereby driving the second gear (12) to rotate.

6. The photovoltaic wind-resistant flexible zipper device according to claim 1, characterized in that, The wheel assembly (1) includes a housing (15), in which the first gear (11), the second gear (12), the winding wheel (13) and the handwheel (14) are all disposed. A first opening and a fourth inner thread are respectively provided on two adjacent sides of the housing (15). A second opening is provided on the side of the housing (15) opposite to the side where the first opening is located. The second opening is aligned with the first opening. The fourth inner thread matches the adjustable wire locking rod (3).

7. The photovoltaic wind-resistant flexible cable device according to claim 6, characterized in that, The wheel assembly (1) includes an inner housing (16), which is disposed inside the housing (15) in close contact with the housing (15). A third opening and a fifth inner thread are respectively provided on two adjacent sides of the inner housing (16) in close contact with the housing (15). A fourth opening is provided on the side of the inner housing (16) opposite to the side where the third opening is located. The third opening and the fourth opening are aligned with the first opening and the second opening. A slot (17) is provided on the side of the inner housing (16) opposite to the side where the fifth inner thread is provided. The slot (17) is aligned with the fifth inner thread.

8. The photovoltaic wind-resistant flexible zipper device according to claim 1, characterized in that, The adjustable wire locking rod (3) has an outer wire that is set along the entire length of the adjustable wire locking rod (3); the photovoltaic module (6) has corresponding tensioning holes (7) on its two opposite sides.

9. The photovoltaic wind-resistant flexible zipper device according to claim 1, characterized in that, The anchor point (4) includes a first anchor point (41), a second anchor point (42) and a third anchor point (43). The steel cable (5) includes a fixed steel cable (51), a movable steel cable (52) and multiple segmented steel cables (53). One end of the fixed steel cable (51) and one end of the movable steel cable (52) are respectively introduced from both ends of the fastening device (2). The other end of the fixed steel cable (51) is connected to the first anchor point (41). The other end of the movable steel cable (52) passes through the corresponding part of the photovoltaic module (6) in sequence and is connected to the second anchor point (42). One end of the segmented steel cable (53) is connected to the movable steel cable (52) and the other end is fixedly connected to the corresponding third anchor point (43).

10. The photovoltaic wind-resistant flexible zipper device according to claim 9, characterized in that, The second anchor point (42) is a triangular connector, one end of which is fixed to the first wall and the other end is connected to one end of the movable steel cable (52); the first anchor point (41) is a triangular connector, one end of which is fixed to the second wall and the other end is connected to one end of the fixed steel cable (51), and the other end of the movable steel cable (52) and the other end of the fixed steel cable (51) are respectively locked into the fastening device (2); the third anchor point (43) is a quadrilateral connector, one end of which is fixed to the ground and the other end is connected to one end of the segmented steel cable (53), and the other end of the segmented steel cable (53) is connected to the movable steel cable (52).

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