CN216819748U - Flexible photovoltaic bracket system with long purlin single bearing cable vertically and horizontally fixedly connected - Google Patents

Abstract

The utility model discloses a long purline single bearing cable vertically and horizontally fixedly connected flexible photovoltaic support system, which comprises: a base structure for serving as a supporting base for the entire flexible photovoltaic system; the prestressed cable structure comprises a flexible bearing cable unit fixed on the upper part of a foundation structure, and the bearing cable unit is used for supporting the photovoltaic module; the photovoltaic modules are fixed to the tops of the bearing cable units through the supporting structures, each supporting structure comprises a plurality of groups of rigid purlin units which are fixedly connected with the bearing cable units and mutually crossed to form a net structure, and a plurality of photovoltaic modules which are arranged in parallel are fixed on each purlin unit. The system is mainly characterized in that the flexible prestressed cable is combined with the rigid support to form the rigid-flexible combined prestressed photovoltaic support, and the system has the characteristics of strong integral wind resistance, simple structure and convenience in installation.

Description

Flexible photovoltaic bracket system with long purlin single bearing cable vertically and horizontally fixedly connected

Technical Field

The utility model relates to the field of photovoltaic power generation, in particular to a long purline single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic support system.

Background

The photovoltaic power generation energy density is low, the occupied area of a power station is large, along with the continuous promotion of the photovoltaic process, the flat and open land resources are less and less, and many photovoltaic power stations have to be considered to be built in regions with complex terrain conditions, multiple functions, larger gradient and severe hydrological conditions, such as flood inundation regions, water channels, sewage treatment plants, vertical and horizontal mountainous regions of gullies and the like. However, due to the limitation of the terrain, the mountable area of the ground fixed photovoltaic support in the areas is small, the construction is difficult, and the economy is poor. As a novel photovoltaic support, the flexible support can adapt to more complex terrains by utilizing the characteristics of large span and few foundations, and has wide application prospect.

At present, the flexible photovoltaic support technology is still in the initial development stage, and although some related patent technologies appear, some technical problems exist, and the safety and the economic operation of a power station are influenced. Patent CN201810258774.2 proposes a cable-stayed flexible photovoltaic support unit and a photovoltaic support, in which a cross beam is fixed by a stay cable between two oppositely arranged upright posts, and a photovoltaic module is mounted on the cross beam. However, in the technology, the upright posts and the inclined cables are higher than the photovoltaic module, shadow shielding can be caused on the photovoltaic module, and the power generation efficiency of the photovoltaic module is influenced. CN201910916550.0 proposes a flexible beam multi-point driving photovoltaic tracking support, which mainly utilizes a driving device to adjust the tilt angle of the flexible support. However, the technical scheme is not provided with a flexible support stabilizing system, and large vibration can be generated under the action of wind, so that the photovoltaic module is damaged. CN201710661713.6, CN202022305503.3, and CN202121913744.4 propose a prestressed cable photovoltaic support system, which uses two prestressed cables with different heights to support a photovoltaic module, and is provided with rigid supports as a stabilizing system to connect with each other, so as to form a flexible support system with strong wind resistance. However, the system has a complicated stabilizing structure and many parts, and the stabilizing systems are not connected with each other to form a whole, so that the wind resistance may be insufficient. In addition, in the technical schemes, the photovoltaic modules are directly fixed on the prestressed cable, so that the probability of hidden cracks of the photovoltaic modules is increased due to insufficient rigidity of the cable, and the safe operation of the photovoltaic modules is not facilitated. And the photovoltaic module generally needs to be fixed at least at 4 positions, so each row of photovoltaic modules need to be provided with at least two prestressed cables for fixing the photovoltaic module and corresponding foundations, and the number of the prestressed cables and the foundations is large.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic support system. The system is mainly characterized in that the flexible prestressed cable is combined with the rigid support to form the rigid-flexible combined prestressed photovoltaic support, and the system has the characteristics of strong integral wind resistance, simple structure and convenience in installation.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system, which comprises:

a foundation structure for serving as a support foundation for the entire flexible photovoltaic system;

the prestressed cable structure comprises a flexible bearing cable unit fixed on the upper part of a foundation structure, and the bearing cable unit is used for supporting the photovoltaic module; and

the photovoltaic component support structure comprises a plurality of groups of rigid purlin units which are fixedly connected with the bearing cable units and mutually crossed to form a net structure, and a plurality of photovoltaic components which are arranged in parallel are fixed on each purlin unit.

Preferably, the foundation structure comprises at least three foundation units arranged side by side at intervals, and a plurality of anti-pulling foundations for fixing the foundation units are arranged on the outer sides of the two outermost foundation units.

Preferably, each base unit comprises a beam base and a plurality of bending-resistant bases fixed at the bottom of the beam base, and the bending-resistant bases and the bearing cable units are perpendicular to each other or form an acute angle; when the two are perpendicular to each other, the upper end of the anti-pulling foundation is fixedly connected with the beam foundation, and an included angle between the upper end of the anti-pulling foundation and the anti-bending foundation is an acute angle; when the two are acute angles, the upper end of the anti-pulling foundation is fixedly connected with the middle of the anti-bending foundation, and an included angle between the upper end of the anti-pulling foundation and the anti-bending foundation is an acute angle.

Preferably, the prestressed cable structure further comprises a stabilizing cable unit, and the stabilizing cable unit provides upward supporting force to the bearing cable unit through a rigid stabilizing structure.

Preferably, the bearing cable unit consists of a plurality of linear bearing cables, and the stabilizing cable unit consists of a plurality of arc stabilizing cables; the deflection of the stabilizing cable is larger than that of the bearing cable, so that a space for installing a stable structure is formed between the bearing cable unit and the stabilizing cable unit.

Further preferably, two ends of the bearing cable are respectively and fixedly connected with two beam foundations positioned at the outermost ends, and the bearing cable is connected with the beam foundation positioned in the middle; and two end parts of the stabilizing cable are respectively and fixedly connected with the two beam foundations positioned at the outermost ends, and the stabilizing cable is connected with the beam foundation positioned in the middle.

It is further preferable that the stabilizing structure comprises a plurality of transverse struts fixedly connected with the stabilizing cable and intersecting with each other to form a net structure, each transverse strut is fixed with a plurality of longitudinal struts perpendicular to the transverse strut, and the upper ends of the longitudinal struts are fixedly connected with the bearing cable.

Preferably, each group of purlin units consists of two purlins which are arranged in a full length mode, one purlin is parallel to the lower frame of the photovoltaic assembly which is obliquely arranged and fixedly connected through a front support, and the other purlin is parallel to the upper frame of the photovoltaic assembly which is obliquely arranged and fixedly connected through a rear support.

It is further preferred that both the purlin units and the load bearing cable units are mutually perpendicular in the length direction.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. according to the flexible photovoltaic support system provided by the utility model, the flexible prestress bearing cable is combined with the full-length rigid purline to form a rigid-flexible combined net structure. Through calculation, when the full-length steel purlines are not arranged on the bearing cables, the first-order natural vibration frequency of the flexible photovoltaic bracket system is 0.979Hz, and the second-order natural vibration frequency is 1.027 Hz; when the technology of the utility model is adopted, the full-length steel purlines are used for combining the bearing cables to form a net structure, the first-order natural vibration frequency of the flexible photovoltaic bracket system is 1.290Hz, and the second-order natural vibration frequency is 1.291 Hz. The first-order and second-order natural vibration frequencies are respectively increased by 31.8% and 25.7%, so that the flexible photovoltaic support system provided by the utility model improves the rigidity and the natural vibration frequency of the system, and the wind resistance of the flexible photovoltaic support system is stronger.

2. When the flexible photovoltaic support is not provided with the rigid purline, the photovoltaic module is directly fixed on the two prestressed suspension cables. Since the movements of the two prestressed suspension cables may not be synchronized, the photovoltaic module may be stressed to cause damage. According to the flexible photovoltaic bracket system provided by the utility model, the photovoltaic module is directly fixed on the rigid purline, compared with the movement of two prestressed suspension cables, the movement of the rigid purline is more coordinated, the deformation is smaller, the deformation risk possibly suffered by the photovoltaic module is reduced, and the probability of the hidden crack of the photovoltaic module is reduced.

3. The wind power area of the photovoltaic module is the largest in the direction vertical to the inclined plane of the photovoltaic module, and the direction is the main wind receiving direction; the wind bearing area is the smallest in the direction parallel to the inclined plane, and the wind load is the smallest. According to the flexible photovoltaic support system provided by the utility model, the main wind direction of the photovoltaic module is consistent with the pretightening force direction of the bearing cable; and the wind load of the photovoltaic assembly is minimum in the direction vertical to the pretightening force of the bearing cable, so that the structural design of the support system is more reasonable and reliable, an additional lateral stabilizing system is not required to be added, and the economical efficiency is better.

4. According to the flexible photovoltaic support system, the photovoltaic component is not directly fixed by the bearing cable, and is fixed by the photovoltaic component through the purlines and the supporting structure. Therefore, the number of the bearing cable and the corresponding bending-resistant foundation and pulling-resistant foundation can be reduced to a certain extent, and the bearing cable has better economical efficiency.

5. The flexible photovoltaic support system provided by the utility model comprises 4 modularized structural units (a foundation structure, a prestressed cable structure, a supporting structure and a stable structure), and each structural unit has fewer parts, fewer mounting nodes and simple and rapid construction. And all parts in the system are the most common engineering materials or parts, are easy to purchase and install, and do not need special construction equipment.

Drawings

Fig. 1 is a schematic view of a long purlin single-bearing-cable vertically and horizontally fixedly connected flexible photovoltaic bracket system according to a first embodiment of the utility model;

fig. 2 is a schematic view of a long purlin single-bearing-cable vertically and horizontally fixedly connected flexible photovoltaic bracket system with a hidden photovoltaic module according to a first embodiment of the utility model;

fig. 3 is a left side view of a long purlin single-bearing-cable vertically and horizontally fixedly connected flexible photovoltaic bracket system according to a first embodiment of the utility model;

fig. 4 is a top view of a long purlin single load-bearing cable vertically and horizontally fixedly connected flexible photovoltaic bracket system according to a first embodiment of the utility model;

fig. 5 is a schematic diagram of a basic structure of the flexible photovoltaic mounting system according to an embodiment of the utility model;

FIG. 6 is a schematic view of a prestressed cable installation structure of the flexible photovoltaic support system according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a prestressed cable of the flexible photovoltaic support system according to an embodiment of the present invention;

fig. 8 is a schematic view of a stable structure of a flexible photovoltaic mounting system according to an embodiment of the utility model;

fig. 9 is a schematic view of a support structure of the flexible photovoltaic mounting system according to an embodiment of the present invention after a photovoltaic module is hidden;

fig. 10 is a schematic view of a support structure of a flexible photovoltaic mounting system according to an embodiment of the utility model;

fig. 11 is a schematic view illustrating a wind direction of the flexible photovoltaic support system according to an embodiment of the present invention;

fig. 12 is a first-order wind vibration array type lateral deformation simulation diagram of the flexible photovoltaic support system according to the first embodiment of the present invention when a full-length steel purline is used;

fig. 13 is a first-order wind vibration matrix type lateral deformation simulation diagram when the full-length steel purline of the flexible photovoltaic support system of the present invention is broken;

fig. 14 is a schematic view of a long purlin single load-bearing cable vertically and horizontally fixedly connected flexible photovoltaic bracket system according to a second embodiment of the utility model.

Reference numerals: 1-a base structure; 11-a base unit; 12-resistance to plucking foundation; 111-beam foundation; 112-bending resistant foundation; 2-a prestressed cable structure; 21-a load bearing cable unit; 22-a stabilizer cable unit; 23-an anchorage device; 211-a load bearing cable; 221-a stabilizing cable; 3-a support structure; 31-purlin units; 32-front support; 33-rear support; 311-purlin; 331-rear support columns; 332-rear support link; 4-a stable structure; 41-transverse stay bar; 42-longitudinal struts; and 5-a photovoltaic module.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example one

As shown in fig. 1 to 10, the embodiment provides a flexible photovoltaic bracket system with a long purlin and a single load-bearing cable vertically and horizontally fixedly connected, and the flexible photovoltaic bracket system is formed by modularizing four parts, namely a foundation structure 1, a prestressed cable structure 2, a supporting structure 3 and a stabilizing structure 4. The flexible prestressed cable structure 2 and the rigid support structure 3 are mutually connected in a cross mode to form a rigid-flexible combined net structure, so that the whole flexible photovoltaic support has the characteristic of flexibility in one direction and has the characteristic of rigidity in the other direction, the rigidity of the whole system is improved, and the whole wind resistance is stronger.

The foundation structure 1 is used as a supporting foundation of the whole flexible photovoltaic system, in this embodiment, the foundation structure 1 includes three foundation units 11 arranged side by side at intervals, each foundation unit 11 includes a beam foundation 111 and a plurality of bending-resistant foundations 112 fixed to the bottom of the beam foundation 111, the bending-resistant foundations 112 are perpendicular to the bearing cable units 21, the upper end of the pulling-resistant foundation 12 is fixedly connected to the beam foundation 111, and an included angle between the pulling-resistant foundation 12 and the bending-resistant foundations 112 is an acute angle; in a specific implementation, one end of the bending-resistant foundation 112 is fixed in the foundation, and the other end is higher than the ground by a certain height.

Further, the outer sides of the two base units 11 at the outermost ends are provided with a plurality of anti-pulling bases 12 for fixing the base units 11. The anti-bending foundation 112, the anti-pulling foundation 12 and the beam foundation 111 form a foundation structure 1, and can provide pretension support for the prestressed cable structure 2 and bear loads such as wind, snow and the like. The beam foundation 111 can connect a plurality of anti-bending foundations 112 and the anti-pulling foundation 12 to form a whole, and has stronger anti-pressing, anti-bending or anti-pulling capacity.

Further, the three base units 11 may be divided into the end base units 11 and the intermediate base units 11. The end part base unit 11 is the base unit 11 positioned at the two most ends of the prestressed cable structure 2 of the flexible photovoltaic support, and the part of the base structure 1 is stressed on one side, so that an uplift base 12 is generally arranged and used for bearing the pretension force of the prestressed cable; the middle base unit 11 is the base unit 11 located in the middle of the flexible photovoltaic support prestressed cable structure 2, the bending moment applied to the part of the base structure 1 is small due to the fact that two ends of the base structure are stressed, and the uplift base 12 does not need to be arranged.

In this embodiment, the bending-resistant foundation 112 is a PHC precast concrete pipe pile, and is fixed perpendicular to the ground. Preferably, the bending-resistant foundation 112 can be selected from common columnar structures such as tubular piles, concrete columns, i-shaped steel, steel pipes and channel steel, and the fixing mode of the bending-resistant foundation in the foundation can be vertical to the ground and can also form a certain included angle with the ground.

In this embodiment, the uplift foundation 12 is a stay cable. Preferably, the uplift foundation 12 may be a common tensile structure such as a cable, an i-steel, a steel pipe, a channel steel, etc., and the uplift foundation 12 may form a certain included angle with the bending-resistant foundation 112 to obtain better structural performance.

In this embodiment, the beam foundation 111 is made of i-steel. Preferably, the beam foundation 111 may be a common beam structure such as concrete, i-steel, or channel steel.

In this embodiment, the number of PHC piles of the middle foundation structure 1 in each row is half of the number of PHC piles of the end foundation structure 1 in each row.

The prestressed cable structure 2 is used for supporting the photovoltaic module 5, the prestressed cable structure 2 comprises a flexible bearing cable unit 21 and a flexible stabilizing cable unit 22 which are fixed on the upper part of the foundation structure 1, and the stabilizing cable unit 22 provides upward supporting force for the bearing cable unit 21 through the rigid stabilizing structure 4. The bearing cable unit 21 consists of a plurality of linear bearing cables 211, and the stabilizing cable unit 22 consists of a plurality of arc stabilizing cables 221; the deflection of the stabilizing cable 221 is larger than that of the bearing cable 211, so that a space for installing the stabilizing structure 4 is formed between the bearing cable unit 21 and the stabilizing cable unit 22.

Furthermore, two ends of the bearing cable 211 are respectively fixedly connected with the two beam foundations 111 located at the outermost ends, and the bearing cable 211 is connected with the beam foundation 111 located in the middle; two ends of the stabilizing cable 221 are respectively fixedly connected with the two beam foundations 111 located at the outermost ends, and the stabilizing cable 221 is connected with the beam foundation 111 located in the middle. Specifically, the ends of the bearing cables 211 and the stabilizing cables 221 may be connected to the beam foundations 111 through anchors, and the bearing cables 211 and the stabilizing cables 221 may be overlapped on the beam foundations 111 located in the middle through holes opened on the respective beam foundations or in other manners.

In this embodiment, the bearing cables 211 and the stabilizing cables 221 are steel strands. Preferably, the load-bearing cable 211 and the stabilizing cable 221 may be a common prestressed cable structure 2 such as a steel wire rope or a steel strand.

Further, the stabilizing structure 4 comprises a plurality of transverse supporting rods 41 fixedly connected with the stabilizing cables 221 and mutually crossed to form a net structure, a plurality of longitudinal supporting rods 42 perpendicular to the transverse supporting rods 41 are fixed on each transverse supporting rod 41, and the upper ends of the longitudinal supporting rods 42 are fixedly connected with the bearing cables 211 and upwards support the bearing cables 211 so as to reduce the deflection of the bearing cables 211. A plurality of diagonal rods can be arranged between the transverse supporting rods 41 and the longitudinal supporting rods 42 to be fixed with the transverse supporting rods so as to enhance the structural strength of the stabilizing structure 4. In this embodiment, the transverse brace 41 and the longitudinal brace 42 both use circular tubes, and the connection between the transverse brace 41 and the stabilizing cable 221 and the connection between the longitudinal brace 42 and the bearing cable 211 may be achieved by a snap or other structures capable of achieving fixed connection.

Wherein the support structure 3 is used to support the photovoltaic module 5 on the load-bearing cable unit 21. The supporting structure 3 is used for fixing the photovoltaic modules 5 on the top of the bearing cable unit 21, the supporting structure 3 comprises a plurality of groups of rigid purlin units 31 which are fixedly connected with the bearing cable unit 21 and mutually crossed to form a net structure, and a plurality of photovoltaic modules 5 which are arranged in parallel are fixed on each group of the purlin units 31. Each group of purlin units 31 is composed of two purlins 311 which are arranged in a full length mode, wherein one purlin 311 is parallel to the lower side frame of the photovoltaic module 5 which is arranged in an inclined mode and is fixedly connected with the lower side frame of the photovoltaic module 5 through a front support 32, and the other purlin 311 is parallel to the upper side frame of the photovoltaic module 5 which is arranged in an inclined mode and is fixedly connected with the upper side frame of the photovoltaic module through a rear support 33. The purlin units 31 and the load bearing cable units 21 are both perpendicular to each other in the length direction. The purlin 311 and the load-bearing cable 211 are connected by a buckle or other structures capable of realizing fixed connection.

In this embodiment, the purlines 311 are made of C-shaped steel. Preferably, the purline 311 may be a common purline 311 structure such as C-shaped steel, angle steel, U-shaped steel, and the like.

Specifically, one end of the front support 32 is fixed on the purline 311, and the other end of the front support can be used for fixing the lower frame of the photovoltaic module 5 by using pressing blocks, bolt holes and the like. The rear support 33 comprises a rear support upright 331 and a rear support connecting piece 332, the rear support upright 331 is fixed on another purline 311, one end of the rear support connecting piece 332 is fixed at the top of the rear support upright 331, and the other end of the rear support connecting piece can be used for fixing the upper frame of the photovoltaic module 5 by pressing blocks, bolt holes and other modes. In this embodiment, both front support 32 and rear support connector 332 are conventional in the art.

The foundation structure 1 is fixed on the ground, and provides a foundation for fixing the prestressed cable structure 2, the stabilizing structure 4 and the supporting structure 3; the prestressed cable structure 2 is fixed on the foundation structure 1, and fixed positions are provided for the stable structure 4 and the supporting structure 3; the stabilizing structure 4 is based on a stabilizing cable 221 and provides support for the bearing cable 211 and the upper structure thereof upwards; the support structure 3 is located above the load bearing cables 211 and provides a mounting location for the photovoltaic modules 5. The rigid-flexible combined pre-tensioned single-suspension-cable flexible photovoltaic support system is composed of the foundation structure 1, the prestressed cable structure 2, the stabilizing structure 4 and the supporting structure 3.

In order to implement smooth implementation of the purlin 311 prestressed cable vertically and horizontally fixedly connected flexible photovoltaic bracket system, the embodiment provides a construction method of a long purlin 311 single bearing cable vertically and horizontally fixedly connected flexible photovoltaic bracket system, and the construction method includes the following steps:

s1, fixing the lower ends of the plurality of bending-resistant foundations 112 in the foundation, ensuring that the upper ends of the bending-resistant foundations are higher than the ground by a certain height and are positioned on the same horizontal plane, then connecting and fixing the plurality of bending-resistant foundations 112 by using the beam foundations 111 to form the foundation unit 11, and sequentially constructing a plurality of foundation units 11 arranged in an array according to the method.

S2, fixing a plurality of uplift foundations 12 on the two outermost foundation units 11 of the array, and simultaneously enabling the bearing ropes 211 to sequentially and transversely penetrate through the first through holes formed in the beam foundations 111 and penetrate through the two outermost beam foundations 111 to be pre-fixed.

S3, applying pretightening force with the same size to the two pre-fixed ends of the bearing cable 211 and the two corresponding uplift foundations 12 by using a suspension cable pretightening device, and fixing the bearing cable 211 and the two uplift foundations 12 on the cross beam foundation 111 by using an anchorage device 23 when the pretightening force meets the design parameter requirement;

s4, sequentially and transversely penetrating the stabilizing cables 221 through second through holes formed in the beam bases 111, and temporarily fixing after penetrating through the two outermost beam bases 111;

s5, fixedly connecting the prefabricated stabilizing structure 4 with a stabilizing cable 221 to form a net structure, and then fixedly connecting the upper end of a longitudinal stay bar 42 of the stabilizing structure 4 with a bearing cable 211;

s6, fixedly connecting a plurality of groups of purlin units 31 with the bearing ropes 211 to form a net structure, and then installing the photovoltaic module 5 on the purlin units 31 through the front supports 32 and the rear supports 33;

s7, exerting pretension on two ends of the stabilizing cable 221 after the photovoltaic module 5 is installed, enabling the stabilizing cable 221 to deform after being tensioned and providing upward supporting force for the bearing cable 211 through the stabilizing structure 4 so as to reduce deflection of the bearing cable 211, and controlling deflection of the bearing cable 211 within a design allowable range by adjusting the pretension.

As shown in fig. 11, in the flexible photovoltaic support system provided by the utility model, the main wind direction of the photovoltaic module is consistent with the pretightening force direction of the bearing cable; and the wind load of the photovoltaic assembly is minimum in the direction vertical to the pretightening force of the bearing cable, so that the structural design of the support system is more reasonable and reliable, an additional lateral stabilizing system is not required to be added, and the economical efficiency is better.

As shown in the attached figure 12, when the technology of the utility model is adopted, the full-length steel purlines are used for combining the bearing cables to form a net structure, the lateral deformation of the first-order wind vibration gust type is small.

As shown in fig. 13, when the full-length steel purline of the flexible photovoltaic bracket system of the utility model is disconnected, the first-order wind vibration array type lateral deformation of the flexible photovoltaic bracket system is larger, which indicates that although the main wind receiving direction of the photovoltaic module is still consistent with the pretightening force direction of the bearing cable, the wind resistance in the lateral direction of the mutually disconnected steel purlines is poor compared with that of the full-length steel purline, an additional lateral stabilizing system needs to be arranged, and the economy is poor.

Example two

As shown in fig. 14, the structure of the present embodiment is substantially the same as embodiment 1, except that: an acute angle is formed between the anti-bending foundation 112 and the bearing cable 211, the upper end of the anti-pulling foundation 12 is fixedly connected with the middle of the anti-bending foundation 112, and the anti-bending foundation 112 and the anti-pulling foundation 12 are both made of I-steel. The bending-resistant foundation 112 adopts a design scheme that an included angle between the bending-resistant foundation 112 and the bearing cable 211 is an acute angle, so that the bending moment of the bending-resistant foundation 112 can be reduced, and the structural stress is optimized.

According to the description and the drawings of the utility model, a person skilled in the art can easily manufacture or use the long-purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system and can generate the positive effects recorded by the utility model.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims (9)

1. The utility model provides a flexible photovoltaic mounting system of long purlin single bearing cable vertical and horizontal rigid coupling formula which characterized in that includes:

-a base structure (1), said base structure (1) being intended to serve as a supporting base for the entire flexible photovoltaic system;

the prestressed cable structure (2) comprises a flexible bearing cable unit (21) fixed on the upper part of the foundation structure (1), and the bearing cable unit (21) is used for supporting the photovoltaic assembly (5); and

the photovoltaic assembly supporting structure comprises a supporting structure (3), the supporting structure (3) is used for fixing photovoltaic assemblies (5) to the top of a bearing cable unit (21), the supporting structure (3) comprises a plurality of groups of rigid purlin units (31) which are fixedly connected with the bearing cable unit (21) and mutually crossed to form a net structure, and a plurality of photovoltaic assemblies (5) which are arranged in parallel are fixed on each group of the purlin units (31).

2. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 1, characterized in that: the foundation structure (1) comprises at least three foundation units (11) arranged side by side at intervals, and a plurality of anti-pulling foundations (12) used for fixing the foundation units (11) are arranged on the outer sides of the two outermost foundation units (11).

3. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 2, characterized in that: each base unit (11) comprises a beam base (111) and a plurality of bending-resistant bases (112) fixed at the bottom of the beam base (111), and the bending-resistant bases (112) and the bearing cable units (21) are perpendicular to each other or form an acute angle; when the two are perpendicular to each other, the upper end of the anti-pulling foundation (12) is fixedly connected with the beam foundation (111), and an included angle between the upper end of the anti-pulling foundation and the anti-bending foundation (112) is an acute angle; when the two are acute angles, the upper end of the anti-pulling foundation (12) is fixedly connected with the middle part of the anti-bending foundation (112), and an included angle between the upper end of the anti-pulling foundation and the anti-bending foundation (112) is an acute angle.

4. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 1, characterized in that: the prestressed cable structure (2) further comprises a stabilizing cable unit (22), and the stabilizing cable unit (22) provides upward supporting force for the bearing cable unit (21) through the rigid stabilizing structure (4).

5. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 4, characterized in that: the bearing cable unit (21) consists of a plurality of linear bearing cables (211), and the stabilizing cable unit (22) consists of a plurality of arc stabilizing cables (221); the deflection of the stabilizing cable (221) is larger than that of the bearing cable (211), so that a space for installing the stabilizing structure (4) is formed between the bearing cable unit (21) and the stabilizing cable unit (22).

6. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 5, characterized in that: two ends of the bearing cable (211) are respectively and fixedly connected with two beam foundations (111) positioned at the outermost ends, and the bearing cable (211) is connected with the beam foundation (111) positioned in the middle; two end parts of the stabilizing cable (221) are respectively fixedly connected with two beam foundations (111) positioned at the outermost ends, and the stabilizing cable (221) is connected with the beam foundation (111) positioned in the middle.

7. The long-purlin single-load-bearing-cable vertically and horizontally fixedly connected flexible photovoltaic bracket system according to claim 4, wherein: the stabilizing structure (4) comprises a plurality of transverse supporting rods (41) which are fixedly connected with stabilizing cables (221) and mutually crossed to form a net structure, a plurality of longitudinal supporting rods (42) perpendicular to the transverse supporting rods are fixed on each transverse supporting rod (41), and the upper ends of the longitudinal supporting rods (42) are fixedly connected with bearing cables (211).

8. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 1, characterized in that: each group of purlin units (31) is composed of two purlins (311) which are arranged in a full length mode, one purlin (311) is parallel to the lower frame of the photovoltaic assembly (5) which is arranged in an inclined mode and is fixedly connected with the lower frame of the photovoltaic assembly (5) through a front support (32), and the other purlin (311) is parallel to the upper frame of the photovoltaic assembly (5) which is arranged in an inclined mode and is fixedly connected with the upper frame of the photovoltaic assembly (5) through a rear support (33).

9. The long purlin single-bearing-cable longitudinally and transversely fixedly connected flexible photovoltaic bracket system according to claim 1 or 8, characterized in that: the purlin unit (31) and the bearing cable unit (21) are perpendicular to each other in the length direction.

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