CN115642861A

CN115642861A - Multidirectional tension cable net photovoltaic board bearing structure

Info

Publication number: CN115642861A
Application number: CN202211380784.6A
Authority: CN
Inventors: 陈景辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-01-24

Abstract

The invention discloses a multidirectional tension cable net photovoltaic panel supporting structure which comprises a supporting frame and a cable net, wherein the cable net is formed by weaving a plurality of inhaul cables in different directions; under the action of bidirectional or/and three-dimensional tension in the inhaul cable, a stable structure with multidirectional load bearing capacity is formed; be equipped with the tensioning ware on the cable, the cross node of cable net is equipped with the photovoltaic board supporting seat, is equipped with the photovoltaic board on the photovoltaic board supporting seat. The invention has firm structure, can still keep stable state under severe weather conditions, and can be provided with various different forms according to different terrains so as to adapt to various different working conditions. The steel structure used by the invention is less, and the self weight is lighter; convenient installation and manufacture, short construction period and low cost.

Description

Multidirectional tension cable net photovoltaic board bearing structure

Technical Field

The invention relates to the technical field of photovoltaics, in particular to a multidirectional tensioned cable net photovoltaic panel supporting structure.

Background

Along with the continuous enhancement of environmental protection consciousness of people, people pay more and more attention to the development of clean energy. Solar energy is a cheap and easily available clean energy, and is a field of key research and development of people.

Photovoltaic board bearing structure is the indispensable device of photovoltaic power generation project. The existing photovoltaic panels are all installed on a plane steel structure, such as CN202010629628.3, the structural performance is poor, and especially when sand storm or typhoon occurs on desert and beach, the photovoltaic panels and the structure are easily damaged together. In addition, the fixing device of the steel structure needs more building materials, has larger weight, is troublesome to manufacture and install, and has long construction period and high manufacturing cost.

Although CN201820379187.4 discloses steel construction and cable used together device, its steel construction accounts for than still higher, still has the great problem of dead weight, and the effect of its cable is for compressing tightly steel construction and photovoltaic board, avoids the photovoltaic board to be blown away by wind, and the pulling force in the cable is only two-way pulling force, and the stability of cable is relatively poor.

Disclosure of Invention

The invention aims to overcome the problems and provide a multidirectional tensioned cable net photovoltaic panel supporting structure. In order to realize the purpose, the invention adopts the following technical scheme:

a multidirectional tension cable net photovoltaic panel supporting structure comprises a supporting frame and a cable net, wherein the cable net is formed by weaving a plurality of tension cables in different directions; under the action of bidirectional or/and three-dimensional tension in the inhaul cable, a stable structure with multidirectional load bearing capacity is formed;

be equipped with the tensioning ware on the cable, the cross node of cable net is equipped with photovoltaic board supporting seat, be equipped with the photovoltaic board on the photovoltaic board supporting seat.

As an improvement, the cable net comprises a transverse main cable, a longitudinal auxiliary cable, an edge cable and an anchor ground cable, the transverse main cable and the longitudinal auxiliary cable form a cable net main body structure which is crossed with each other, the edge cable is arranged at the edge position of the cable net, two ends of the transverse main cable are respectively fixed on the support frame, two ends of the longitudinal auxiliary cable are respectively fixed on the edge cable, one end of the anchor ground cable is fixed through a cable fixing seat, the other end of the anchor ground cable is fixed on the support frame or the cable net, and the tensioner is arranged on the anchor ground cable and the edge cable.

As an improvement, the support frame is two oppositely arranged arched supports, two ends of each arched support are fixed through a support base, two ends of each transverse main rope are fixed with the two arched supports, the longitudinal auxiliary ropes and the transverse ropes are vertically arranged to form crossed rope nets, the edge ropes are arranged on two sides of the rope nets, two ends of each edge rope are fixed on the arched supports or the support bases, two ends of each longitudinal auxiliary rope are fixed on the edge ropes, one end of each anchor ground rope is fixed through a rope fixing base, and the other end of each anchor ground rope is fixed on the arched supports.

As an improvement, the support frame is two straight rods which are oppositely arranged, and the bottoms of the straight rods are fixed through a support seat; the two ends of the transverse main cable are respectively fixedly connected with the two straight rods, the longitudinal auxiliary cable and the transverse inhaul cable are vertically arranged to form a crossed cable net, the edge inhaul cable is arranged on the two sides of the cable net, the two ends of the edge inhaul cable are fixed on the straight rods, and the two ends of the longitudinal auxiliary cable are fixed on the edge inhaul cable; the anchor ground inhaul cable comprises a first anchor ground inhaul cable and a second anchor ground inhaul cable, one end of the first anchor ground inhaul cable is fixed through an inhaul cable fixing seat, the other end of the first anchor ground inhaul cable is fixed on the straight rod, and the straight rod is tensioned and fixed from two sides respectively; one end of the second anchor ground stay cable is fixed through the stay cable fixing seat, the other end of the second anchor ground stay cable is connected to the cross point of the cable net, the cable net is tensioned towards one side, and three-dimensional tension is formed in the cable net.

As an improvement, when the supporting structure is applied to a roof, the supporting frame is arranged in parallel to a special structure of the roof, and a corresponding device is arranged at the special structure of the roof; the special roof structure comprises a transom window, a middle column or a lightning rod, wherein a corresponding device at the transom window is a transom window bracket, and a corresponding device at the middle column or the lightning rod is a hanging bracket;

the transom window support is of an inverted triangular structure formed by three transom window support rods, wherein the two transom window support rods at the top are fixedly connected with the support frame, and the transverse main cable is fixed with the support frame at the lower part of the transom window;

the hanger is provided with a diagonal draw bar fixed on the support frame.

As an improvement, a bolt clamp is arranged at the bottom of the photovoltaic panel supporting seat, grooves for fixing the transverse main cable and the longitudinal auxiliary cable respectively are formed in the bolt clamp, so that the transverse main cable and the longitudinal auxiliary cable can be stably fixed on cross points of a cable net, supporting rods are arranged between the photovoltaic panel supporting seat and the bolt clamp, through holes for fixing photovoltaic panels are formed in four corners of the photovoltaic panel supporting seat, and the photovoltaic panels are fixed on the through holes through bolts.

As an improvement, the four corners of the photovoltaic panel are provided with corner plate structures, the corner plate structures are thin steel plates with blank areas reserved at the four corners or U-shaped steel structures arranged at the bottom of the photovoltaic panel, the corner plate structures are provided with second through holes matched with the through holes, and the through holes and the second through holes are fixedly connected through bolts.

As an improvement, when the supporting structure is arranged on a hyperbolic roof, a drainage unit is formed in an area between four slope tops, each drainage unit comprises a water tank and a water funnel, the water tank is hung on the photovoltaic panel supporting seat, the water funnel is arranged at the lowest point of the drainage unit, and rainwater received by the drainage unit flows into the water tank and is led into the water funnel to drain downwards through the water tank.

As an improvement, when the supporting structure is applied to a roof, a pedestrian maintenance access is arranged above the supporting frame.

As an improvement, when the supporting structure is applied to a built roof, the bottom of the photovoltaic panel supporting seat is provided with a bottom fixed seat, and an expansion curing material is injected into the lower part of the bottom fixed seat to be bonded and fixed with the roof.

The invention has the advantages that:

1. the invention can form a structural frame with small deformation or vibration in three dimensional directions. All gravity or other external forces acting on the photovoltaic panel and the cable net are converted into tension in the stay cables by the stay cables in the transverse direction and the longitudinal direction, and the tension is born by the anchor ground stay cables and is uniformly transmitted to the fixed anchor points. The installation connection of photovoltaic board and photovoltaic board supporting seat can absorb the distortion power of cable net curved surface to the photovoltaic board. The invention has firm structure and can still keep a stable state under severe weather conditions.

2. The invention takes the cable net as a main supporting structure. The cable net is not fixed in shape, and can be set in various shapes according to different terrains so as to adapt to various different working conditions.

3. The steel structure used by the invention is less, and the self weight is lighter; convenient installation and manufacture, short construction period and low cost.

Drawings

Fig. 1 is a structural diagram of a supporting structure of a multi-directional tensioned cable network photovoltaic panel according to example 1.

Fig. 2 is a structural diagram of a photovoltaic panel support base in a multi-directional tensioned cable mesh photovoltaic panel support structure according to embodiment 1.

Fig. 3 is a schematic view illustrating connection between a photovoltaic panel supporting base and a photovoltaic panel in a multi-directional tension cable net photovoltaic panel supporting structure in embodiment 1.

Fig. 4 is a partial view of a photovoltaic panel in a multi-directional tensioned cable mesh photovoltaic panel support structure according to example 1.

Fig. 5 is a structural diagram of a multi-directional tensioned cable mesh photovoltaic panel support structure in example 2.

Fig. 6 is a structural diagram of a multi-directional tensioned cable mesh photovoltaic panel support structure in example 3.

Fig. 7 is a structural view of an air window support in a multi-directional tensioned cable mesh photovoltaic panel support structure according to example 3.

Fig. 8 is a plan view of the arrangement and the roof organized drainage of a multi-directional tensioned cable mesh photovoltaic panel support structure of example 4.

Fig. 9 isbase:Sub>A cross-sectional view ofbase:Sub>A-base:Sub>A' inbase:Sub>A multi-directional tensioned cable mesh photovoltaic panel support structure according to example 4.

Fig. 10 is a cross-sectional view of B-B' in a multi-directional tensioned cable mesh photovoltaic panel support structure of example 4.

Fig. 11 is a schematic view of the connection of the photovoltaic panel support structure to the completed roof in example 5.

The figures are labeled as follows:

1-support frame, 11-arch support frame, 12-straight rod, 2-stay cable, 21-transverse main cable, 22-longitudinal stay cable, 23-edge stay cable, 24-anchor stay cable, 3-tensioner, 4-photovoltaic panel support base, 41-bolt clamp, 42-groove, 43-support rod, 44-through hole, 45-bottom fixed base, 46-injection hole, 47-overflow hole, 5-photovoltaic panel, 51-bolt, 52-plate corner structure, 53-thin steel plate, 54-U-shaped steel structure, 55-second through hole, 6-support base, 61-air window support rod, 7-stay cable fixed base, 8-hanger, 81-diagonal brace, 82-pedestrian maintenance access, 9-drainage unit, 91-water tank, 92-water funnel and 93-down-stay cable.

A-transom window, B-middle column, C-lightning rod.

Detailed Description

The present invention will be described in detail and specifically with reference to the following examples so as to facilitate the understanding of the present invention, but the following examples do not limit the scope of the present invention.

Example 1

As shown in fig. 1, the present embodiment discloses a multidirectional tensioned cable net photovoltaic panel supporting structure, which includes a supporting frame 1 and a cable net 2. The cable net 2 is woven by a plurality of inhaul cables in different directions; under the action of bidirectional or/and three-dimensional tension in the inhaul cable, a stable structure with multidirectional load bearing capacity is formed.

Be equipped with tensioning ware 3 on the cable, the cross node of cable net 2 is equipped with photovoltaic board supporting seat 4, is equipped with photovoltaic board 5 on the photovoltaic board supporting seat 4.

The cable net 2 includes a transverse main cable 21, a longitudinal auxiliary cable 22, an edge cable 23 and an anchor cable 24.

In this embodiment, the supporting frame 1 is two oppositely arranged arched brackets 11. Two ends of the arch-shaped bracket 11 are respectively fixed by the bracket seats 6. Two ends of the transverse main cable 21 are respectively fixed with the two arched brackets 11. The longitudinal auxiliary cables 22 are arranged perpendicular to the transverse cables 21 and form a crossed cable net 2. The edge guy cables 23 are arranged at two sides of the cable net 2, and two ends of the edge guy cable 3 are fixed on the arch-shaped bracket 11 or the bracket base 6. Both ends of the longitudinal auxiliary rope 22 are fixed to the edge stay 23. One end of an anchor ground cable 24 is fixed through the cable fixing seat 7, and the other end of the anchor ground cable is fixed on the arched support 11.

In the present embodiment, the tensioner 3 is provided on the edge cable 23 and the anchor cable 24.

The bottom of the photovoltaic panel supporting seat 4 is provided with a bolt clamp 41. The bolt holder 41 is provided with grooves 42 for fixing the transverse main cables 21 and the longitudinal auxiliary cables 22, respectively, so that they can be stably fixed at the crossing points of the cable net 2. A support rod 43 is arranged between the photovoltaic panel support seat 4 and the bolt clamp 41. Four corners of the photovoltaic panel supporting seat 4 are provided with through holes 44 for fixing the photovoltaic panel 5. The photovoltaic panel 5 is fixed to the through hole 44 by a bolt 51.

The four corners of the photovoltaic panel 5 are provided with corner structures 52. The plate corner structure 52 is a thin steel plate 53 with blank areas left at four corners or a U-shaped steel structure 54 arranged at the bottom of the photovoltaic plate. The plate corner structure 52 is provided with a second through hole 55 which is matched with the through hole 44. The through hole 44 and the second through hole 55 are fixedly connected by a bolt 51.

As shown in fig. 3, four through holes 44 at the top of each photovoltaic panel support base 4 are respectively fixedly connected with different photovoltaic panels 5.

In this embodiment, the guy cables in the horizontal and vertical directions convert all gravity or other external forces acting on the photovoltaic panel 5 and the cable net 2 into pulling forces in the guy cables, and the pulling forces are borne by the anchor ground guy cables 24 and are uniformly transmitted to the fixed anchor points through the guy cable fixing seats 7. The supporting rod 43 may be set to a specific length according to the position of the intersection of the corresponding cable net 2, so that the twisting force of the curved surface of the cable net 2 to the photovoltaic panel 6 may be absorbed. If necessary, the thin steel plates 53 in the blank areas of the four corners of the plate corner structure 52 can be designed into a bent shape, and the U-shaped steel structure 54 can also absorb the torsion of the curved surface of the cable net 2 on the photovoltaic panel 5 by controlling the bending angle thereof.

Example 2

As shown in fig. 5, the present embodiment discloses a multi-directional tensioned cable net photovoltaic panel supporting structure, which includes a supporting frame 1 and a cable net 2. The cable net 2 is woven by a plurality of inhaul cables in different directions; under the action of bidirectional or/and three-dimensional tension in the inhaul cable, a stable structure with multidirectional load bearing capacity is formed.

In this embodiment, the supporting frame 1 is two opposite straight rods 12. The bottom of the straight rod 12 is fixed by the bracket base 6. Two ends of the transverse main cable 21 are respectively fixedly connected with the two straight rods 12. The longitudinal auxiliary cables 22 are arranged perpendicular to the transverse cables 21 and form a crossed cable net 2. The edge guy 23 is arranged at the top and the bottom of the cable net 2, and two ends of the edge guy 23 are fixed on the straight rod 12. Both ends of the longitudinal auxiliary rope 22 are fixed to the edge stay 23. The anchor cable 24 includes a first anchor cable 241 and a second anchor cable 242. One end of the first anchor ground cable 241 is fixed through the cable fixing seat 7, and the other end is fixed on the straight rod 12, and the straight rod 12 is tightened and fixed from two sides respectively. One end of the second anchor ground cable 242 is fixed through the cable fixing seat 7, and the other end is connected to the intersection of the cable net 2, so that the cable net 2 is tensioned towards one side, and a three-dimensional tension is formed in the cable net.

The photovoltaic panel support base 4, the photovoltaic panel 5 and the connection structure of the photovoltaic panel support base and the cable net 2 in the embodiment are the same as those in embodiment 1.

Examples 1 and 2 may be placed on normal ground, desert or beach. The two structures are firm and cannot be damaged by factors such as strong wind and the like. If the plastic film is placed on a garbage yard, the plastic film can be arranged on the plastic cover film of the garbage yard in series; the further environmental pollution caused by accelerated decay of solar radiation heat to the following garbage can be reduced, and a larger-scale photovoltaic power station can be built. With the economic source of power generation, the garbage dump can be reused by further adopting an artificial or natural method. In addition, both the embodiment 1 and the embodiment 2 are convenient to disassemble and assemble, and can be quickly disassembled when a garbage storage yard needs to be reconstructed.

Example 3

As shown in fig. 6, the present embodiment discloses a multi-directional tensioned cable net photovoltaic panel supporting structure, which comprises a supporting frame 1 and a cable net 2. This embodiment is primarily intended for roofs with a louver a on top.

The support frame 6 is parallel to the length direction setting of transom A, and the bottom is fixed through a support frame seat 6. In this embodiment, the structures and the connection relations of the cable net 2, the photovoltaic panel support base 4 and the photovoltaic panel 5 are basically the same as those of embodiment 1. The louver holder 61 is provided only at the louver a.

The louver frame 61 is an inverted triangular structure formed by three louver support rods 61, wherein the top two louver support rods 61 are fixed on the arched frame 11. In addition, a photovoltaic panel 5 can also be fixed at the plane position of the top of the louver A.

Example 4

As shown in fig. 8, the present embodiment discloses a multi-directional tensioned cable net photovoltaic panel supporting structure, which includes a supporting frame 1 and a cable net 2. The embodiment is mainly used for large-span large-area hyperboloid roofs. The roof is provided with a middle column B and a lightning rod C.

In this embodiment, the structures and the connection relations of the cable net 2, the photovoltaic panel support base 4 and the photovoltaic panel 5 are substantially the same as those of embodiment 3. The large-span large-area hyperboloid roof has two attention problems: 1. the span is large, so the force applied to the guy cable and the support frame 1 is large; 2. if the roof provided with the photovoltaic panel is required to be watertight, organized drainage needs to be carried out on the roof.

In order to solve the problem of large span of the support structure, the present embodiment provides a hanger 8 at the center pillar B. The hanging bracket 8 is provided with a diagonal draw bar 81 fixed on the supporting frame 1. The steel consumption in the support frame 1 can be effectively reduced by the hanger 8 and the diagonal draw bars 81.

In respect of the drainage problem, the present embodiment provides drainage cells 9 in the area between the four tops of the hill. The drain unit 9 includes a water tank 91 and a water funnel 92. The water tank 91 is hung on the photovoltaic panel support base 4. The water funnel 92 is provided at the lowest point of the drain unit 9, and rainwater received by the drain unit 9 flows into the water tank 91 and is drawn into the water funnel 92 through the water tank 91 to be discharged. A lower cable 93 fixed to the ground may be further provided near the water tank 91 and the water funnel 92.

The embodiment can also be provided with a pedestrian maintenance access 82 on the support frame 1. The supporting point of the pedestrian maintenance sidewalk 82 is arranged on the supporting frame 1, and a light-transmitting wire mesh is laid.

Example 5

As shown in fig. 11, the present embodiment discloses a structure and method for directly installing a photovoltaic panel on a constructed roof.

In this embodiment, use cable wire or steel bar connection location between the photovoltaic board supporting seat 4, photovoltaic board supporting seat 4 bottom is equipped with bottom fixing base 45. The lower part of the bottom fixing seat 45 is of a cavity structure, and the top of the cavity is provided with an injection hole 46 and an overflow hole 47, so that expansion curing materials can be injected to be bonded and fixed with a roof.

Both example 3 and example 4 are photovoltaic panel support structures disposed on a roof. Although embodiment 3 and embodiment 4 disclose the louver holder 61 structure corresponding to the louver a, the hanger 8 structure corresponding to the center pillar B, and the drain unit 9 for draining water, respectively, the above structures are not necessarily independently provided. The targeted combination arrangement can be carried out according to the actual situation of the roof.

Examples 3, 4 and 5 are applied to structures such as an enterprise workshop ceiling and a multi-storey building roof, and can make full use of space resources in the above-mentioned areas to obtain good economic benefits. The invention has light weight and can not generate excessive pressure on the roof structure when being arranged at the roof. The applicant has made a conceptual design for a photovoltaic power generation ceiling of more than 3 ten thousand square meters in a certain industrial park in Guangzhou and hundreds of thousands square meters in a certain aquaculture base, and has obvious effects and economic benefits.

The embodiments of the present invention have been described in detail above, but they are merely exemplary, and the present invention is not equivalent to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, it is intended that all equivalent alterations and modifications be included within the scope of the invention, without departing from the spirit and scope of the invention.

Claims

1. The multidirectional tension cable net photovoltaic panel supporting structure is characterized by comprising a supporting frame and a cable net, wherein the cable net is formed by weaving a plurality of tension cables in different directions; under the action of bidirectional or/and three-dimensional tension in the inhaul cable, a stable structure with multidirectional load bearing capacity is formed;

be equipped with the tensioning ware on the cable, the cross node of cable net is equipped with the photovoltaic board supporting seat, be equipped with the photovoltaic board on the photovoltaic board supporting seat.

2. The multi-directional tensioned cable net photovoltaic panel supporting structure as claimed in claim 1, wherein the cable net comprises transverse main cables, longitudinal auxiliary cables, edge cables and anchor cables, the transverse main cables and the longitudinal auxiliary cables form a cable net main body structure which is intersected with each other, the edge cables are arranged at the edge positions of the cable net, two ends of the transverse main cables are respectively fixed on the supporting frames, two ends of the longitudinal auxiliary cables are respectively fixed on the edge cables, one end of each anchor cable is fixed through a cable fixing seat, the other end of each anchor cable is fixed on the supporting frame or the cable net, and the tensioners are arranged on the anchor cables and the edge cables.

3. The multi-directional tension cable net photovoltaic panel supporting structure as claimed in claim 2, wherein the supporting frame is two oppositely arranged arched supports, two ends of each arched support are fixed by a support base, two ends of the transverse main cable are fixed with the two arched supports, the longitudinal auxiliary cables and the transverse cables are arranged perpendicularly and form a crossed cable net, the edge cables are arranged on two sides of the cable net, two ends of the edge cables are fixed on the arched supports or the support bases, two ends of the longitudinal auxiliary cables are fixed on the edge cables, one end of each anchor ground cable is fixed by a cable fixing base, and the other end of each anchor ground cable is fixed on the arched supports.

4. The multidirectional tension cable net photovoltaic panel supporting structure as claimed in claim 2, wherein the supporting frame is two oppositely arranged straight bars, and bottoms of the straight bars are fixed through bracket bases; the two ends of the transverse main cable are respectively fixedly connected with the two straight rods, the longitudinal auxiliary cable and the transverse inhaul cable are vertically arranged to form a crossed cable net, the edge inhaul cable is arranged on the two sides of the cable net, the two ends of the edge inhaul cable are fixed on the straight rods, and the two ends of the longitudinal auxiliary cable are fixed on the edge inhaul cable; the anchor ground inhaul cable comprises a first anchor ground inhaul cable and a second anchor ground inhaul cable, one end of the first anchor ground inhaul cable is fixed through an inhaul cable fixing seat, the other end of the first anchor ground inhaul cable is fixed on the straight rod, and the straight rod is tensioned and fixed from two sides respectively; one end of the second anchor ground stay cable is fixed through the stay cable fixing seat, the other end of the second anchor ground stay cable is connected to the cross point of the cable net, the cable net is tensioned towards one side, and three-dimensional tension is formed in the cable net.

5. The multi-directional tensioned cable mesh photovoltaic panel support structure as recited in claim 2, wherein when the support structure is applied to a roof, the support frame is arranged in parallel with a roof specific structure, and a corresponding device is arranged at the roof specific structure; the special structure of the roof comprises a transom window, a middle column or a lightning rod, wherein a corresponding device at the transom window is a transom window bracket, and a corresponding device at the middle column or the lightning rod is a hanging bracket;

the hanger is provided with diagonal draw bars fixed on the cable net or the support frame.

6. The multi-directional tension cable net photovoltaic panel supporting structure as claimed in claim 1, wherein the bottom of the photovoltaic panel supporting base is provided with a bolt clamp, the bolt clamp is provided with a groove for fixing the transverse main cable and the longitudinal auxiliary cable, respectively, so that the transverse main cable and the longitudinal auxiliary cable can be stably fixed at the crossing point of the cable net, a supporting rod is arranged between the photovoltaic panel supporting base and the bolt clamp, the photovoltaic panel supporting base is provided with through holes at four corners for fixing the photovoltaic panel, and the photovoltaic panel is fixed on the through holes by bolts.

7. The multidirectional tension cable net photovoltaic panel supporting structure as claimed in claim 6, wherein corner structures are arranged at four corners of the photovoltaic panel, the corner structures are thin steel plates with blank areas left at four corners or U-shaped steel structures arranged at the bottom of the photovoltaic panel, second through holes matched with the through holes are arranged on the corner structures, and the through holes and the second through holes are fixedly connected through bolts.

8. The multi-directional tension cable net photovoltaic panel supporting structure as claimed in claim 2 or 6, wherein the supporting structure is installed on a hyperbolic roof, and the area between four slopes forms a drainage unit, each drainage unit comprises a water trough and a water funnel, the water trough is hung on the photovoltaic panel supporting base, the water funnel is installed at the lowest point of the drainage unit, and rainwater received by the drainage unit flows into the water trough and is led to the water funnel through the water trough to drain downwards.

9. The multi-directional tensioned cable mesh photovoltaic panel support structure as recited in claim 1 wherein when the support structure is applied to a roof, a man way service walkway is provided over the support shelf.

10. The multi-directional tensioned cable net photovoltaic panel support structure as claimed in claim 6, wherein when the support structure is applied to a built roof, the bottom of the bolt clamp is provided with a bottom fixing seat, and an expansion curing material is injected into the lower part of the bottom fixing seat to be adhered and fixed to the roof.