CN221177593U - Install in photovoltaic system of oblique roofing of double sloping - Google Patents

Abstract

The utility model discloses a photovoltaic system installed on a double-slope inclined roof, which comprises two inclined photovoltaic brackets and photovoltaic modules, wherein the two inclined photovoltaic brackets are correspondingly installed on the inclined roof at two sides of a ridge, the photovoltaic modules are installed on the inclined photovoltaic brackets, the inclined photovoltaic brackets are provided with inclined support trusses, the bottoms of the inclined support trusses are fixed on the inclined roof, the inclined support trusses are provided with longitudinally extending upper inclined trusses, the upper inclined trusses are provided with overhead sections extending to the upper side of the ridge, and the overhead sections of the inclined photovoltaic brackets at two sides of the ridge are provided with overhead fixing parts which are fixed in a crossing manner. The utility model can be suitable for the house type with high ridge, and is not only a common double-slope sloping roof without ridge.

Description

Install in photovoltaic system of oblique roofing of double sloping

[ Field of technology ]

The utility model belongs to the technical field of photovoltaics, and particularly relates to a photovoltaic system arranged on a sloping roof without a platform.

[ Background Art ]

At present, a flat double-slope sloping roof is only paved with photovoltaic modules on south slopes, north slopes are empty, waste is formed in area, cost is high, maximization of income of companies, agents and users cannot be achieved, and meanwhile, in the case of ridges, design is not considered.

If photovoltaic modules are paved on the south and north slopes at the same time, a crossing ridge module is required to be arranged, the prior art discloses a hinge installed on a ridge, and inclined beams of photovoltaic brackets on the south and north sides are fixedly connected with the hinge. But the hinge is suitable for shorter ridges, cannot span larger ridges and cannot adapt to occasions with height changes of the ridges.

[ utility model ]

Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide the photovoltaic system arranged on the double-slope inclined roof, so that the house type of the low ridge and the high ridge can be simultaneously adapted while simultaneously paving the photovoltaic modules on the south slope and the north slope.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a install in photovoltaic system of double sloping roof, includes two slant photovoltaic supports and the photovoltaic module of installing in the slant photovoltaic support of corresponding installation on the sloping roof in ridge both sides, the slant photovoltaic support is equipped with the slant support truss, the bottom of slant support truss is fixed in the sloping roof, the slant support truss is equipped with the upper sloping that vertically extends, the upper sloping is equipped with the overhead section that extends to the ridge top, and the overhead section of the slant photovoltaic support of ridge both sides is equipped with carries out the overhead fixed part of alternately fixing.

Preferably, the diagonal support truss further comprises a plurality of lower diagonal beams arranged corresponding to the plurality of upper diagonal beams and a plurality of truss web members arranged between the lower diagonal beams and the upper diagonal beams correspondingly, and the heights of the truss web members from the lower side to the upper side are increased one by one so as to raise the height of the overhead section.

Preferably, the lower oblique beam and the upper oblique beam are longitudinally provided with a plurality of adjusting holes, both ends of the truss web member are connected with fixing bolts, and the fixing bolts are connected with the adjusting holes.

Preferably, the oblique photovoltaic bracket is further provided with a middle supporting rod connected with the overhead section of the oblique beam on two sides of the ridge; and/or the overhead fixing parts of the overhead sections of the inclined photovoltaic brackets at the two sides of the ridge are fixed by fixing bolts.

Preferably, the bottom of the inclined support truss is fixed on the inclined roof through a support hook assembly, and the support hook assembly comprises a fixing piece fixed on the inclined roof and a hook for connecting the fixing piece and the bottom of the inclined support truss.

Preferably, the fixing piece comprises a first inclined section extending obliquely along the inclined roof and a first upper bending section formed by bending upwards from one inclined side of the first inclined section, the first inclined section is fixed on the inclined roof, and the first upper bending section is connected with the hook.

Preferably, the hook comprises an upper hook and a lower hook, the lower hook comprises a second inclined section extending obliquely along the inclined roof, a second upper bending section formed by bending upwards from the obliquely upper side of the second inclined section, and a first lower bending section formed by bending downwards from the obliquely lower side of the second inclined section, and the first lower bending section is connected with the first upper bending section by adopting a fixing bolt; the upper hook comprises a third inclined section extending obliquely along the inclined roof, a fixing lug formed by bending upwards from the side surface of the inclined lower side of the third inclined section, and a second lower bending section formed by bending downwards from the inclined upper side of the third inclined section, wherein the second lower bending section is connected with the second upper bending section through a fixing bolt, and the fixing lug is connected with the bottom of the inclined support truss through a fixing bolt.

Preferably, the upper inclined beam and the lower inclined beam are provided with overhanging sections with end parts which are in cross connection outside the wall surface, and overhanging inclined supports are arranged between the cross connection parts of the overhanging sections and the wall surface.

Preferably, the cantilever inclined support comprises a lower inclined support fixed on the wall surface and a first inclined support rod, wherein the lower end of the first inclined support rod is hinged with the lower inclined support, and the cross connection part of the upper end of the first inclined support rod and the cantilever section is fixed.

Preferably, the cantilever inclined support further comprises an upper inclined support seat fixed on the wall surface and positioned above the lower inclined support seat, and a second inclined support rod, wherein the lower end of the second inclined support rod is hinged with the upper inclined support seat, and the upper end of the second inclined support rod is fixed with the first inclined support rod.

The utility model adopts the technical scheme and has the following beneficial effects:

1. Firstly, oblique photovoltaic brackets and photovoltaic modules are arranged on oblique roofs at two sides of a ridge, and compared with the prior photovoltaic modules arranged on a single slope, the photovoltaic modules can be doubled, and under the condition of the same power generation efficiency, the power generation capacity can be doubled; in addition, the roof is fully covered by the photovoltaic component, so that sunlight is prevented from directly irradiating the roof, and a photovoltaic heat insulation layer is formed, so that the roof is effectively protected, the indoor temperature is reduced by 3-5 ℃, and the house stuffiness in hot days is effectively relieved.

Secondly, the photovoltaic module is arranged on the inclined photovoltaic support, the photovoltaic module is lifted to a certain height above the roof through the inclined photovoltaic support, on one hand, a photovoltaic heat insulation layer is formed between the photovoltaic module and the roof, on the other hand, the upper inclined beam can upwards extend to the upper side of the ridge to form an overhead section due to the higher height of the upper inclined beam, so that the roof can be spanned, the roof can be suitable for a house type of a high ridge, and the roof is not only a common double-slope inclined roof without the ridge.

And thirdly, as the overhead sections of the inclined photovoltaic brackets at the two sides of the ridge are fixed in a crossed manner at the overhead fixing part, the inclined photovoltaic brackets at the two sides are connected into a whole, and the structure is stable and reliable.

Finally, the truss has the advantages that the rod pieces mainly bear tension or compression, the material effect can be fully exerted, the material is saved, the structure weight is reduced, and therefore the structure of the inclined support truss is adopted to stably support the photovoltaic module.

2. The diagonal support truss can be a common steel truss structure, and further comprises a plurality of lower diagonal beams which are arranged corresponding to the plurality of upper diagonal beams and a plurality of truss web members which are arranged between the lower diagonal beams and the upper diagonal beams. The heights of the truss web members are gradually increased from the lower side to the upper side, so that the heights of the overhead sections can be raised, the overhead sections can span the ridge, particularly the higher ridge, and the truss web members are suitable for the house type of the high ridge.

3. Because go up sloping and sloping down and be equipped with a plurality of regulation holes along vertically, the both ends of truss web member all are connected with fixing bolt to fixing bolt is connected with the regulation hole, consequently, can be through selecting the truss web member of different length and selecting the truss web member and go up the fixed regulation hole longitudinal position of sloping and sloping down, adjust photovoltaic module's angle, can better deal with the sunlight angle change in different areas and seasons, adapt to bigger azimuth angle scope, adapt to more ridge height room types.

4. Because the middle supporting rods are connected between the overhead sections of the upper oblique beams on the two sides of the ridge, the upper oblique beams on the two sides are more firmly connected, and the overhead sections of the upper oblique beams are positioned and supported, so that the structural stability is improved, and deformation is avoided.

5. The oblique support truss is installed by adopting the hook structure, the support hook assembly is arranged on the roof in advance, and then the oblique support truss is fixed with the hook assembly, so that the installation is convenient and quick.

6. The support hook component is formed by connecting a fixing piece, an upper hook and a lower hook through fixing bolts, so that the bottom of the inclined support truss is higher than an inclined roof, and the roof with tiles is prevented from being crushed. The side of the upper hook is provided with the fixing lug, the fixing lug can be attached to the side of the lower oblique beam and is connected with the adjusting hole on the lower oblique beam through the fixing bolt, so that the bottom of the diagonal support truss is conveniently connected with the support hook assembly.

7. Because the upper inclined beam and the lower inclined beam are provided with overhanging sections with end parts which are in cross connection outside the wall surface, the area of the photovoltaic module can be increased, and the power generation efficiency is improved. In addition, an overhanging oblique support is arranged between the cross connection part of the overhanging section and the wall surface, and the overhanging section is fixed. Therefore, the upper part, the middle part and the lower part of the inclined roof photovoltaic bracket are all fixed, and the fixation is reliable.

8. Because the cantilever inclined support is provided with the first inclined support rod and the second inclined support rod fixed with the first inclined support rod, the reliability of the cantilever section support of the inclined photovoltaic support is improved.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

[ Description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is a schematic view of one of the photovoltaic systems of the present utility model mounted on a double sloping roof;

FIG. 2 is a top view of the photovoltaic system of the present utility model mounted to a double sloping roof;

FIG. 3 is a transverse view of the lower diagonal beam;

FIG. 4 is a longitudinal view of the lower diagonal beam;

FIG. 5 is a schematic view of the structure of the lower diagonal brace carrier;

FIG. 6 is a schematic view of the structure of the support hook assembly;

FIG. 7 is a schematic view of another construction of the photovoltaic system of the present utility model mounted to a double sloping roof;

Reference numerals: the photovoltaic module 1, the oblique photovoltaic bracket 2, the lower oblique beam 21, the adjusting hole 211, the truss web 22, the upper oblique beam 23, the overhead section 231, the cross beam 24, the middle support rod 25, the support hook assembly 3, the fixing piece 31, the lower hook 32, the upper hook 33, the overhanging oblique support 4, the first oblique support rod 41, the lower oblique support 42, the vertical fixing section 421, the expansion bolt 422, the horizontal connecting section 423, the upper oblique support 43, the second oblique support rod 44, the building 5, the oblique roof 51, the ridge 52 and the wall surface 53.

[ Detailed description ] of the invention

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

Those skilled in the art will appreciate that the features of the examples and embodiments described below can be combined with one another without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Words such as "upper", "lower", "front", "rear", etc., indicating an azimuth or a positional relationship are based on only the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The photovoltaic system in this embodiment is mainly directed to a non-flat double-sloping roof scene with ridge, and referring to fig. 1 to 7, for a non-flat double-sloping roof building 5 with ridge, both the north and south directions of the roof are provided with sloping roofs 51, the middle is provided with ridge 52, and both the north and south sides are provided with wall surfaces 53. The embodiment provides a photovoltaic system installed on a double-slope inclined roof, which comprises two inclined photovoltaic supports 2 correspondingly installed on the inclined roof at two sides of a ridge and a photovoltaic module 1 installed on the inclined photovoltaic supports, wherein the inclined photovoltaic supports 2 are provided with inclined support trusses, the bottoms of the inclined support trusses are fixed on the inclined roof, the inclined support trusses are provided with longitudinally extending upper inclined girders 23, a plurality of cross beams 24 are vertically and alternately fixed above the upper inclined girders 23, and the photovoltaic module 1 is installed on the cross beams 24.

In order to fix one end of the photovoltaic bracket close to the ridge, a crossing ridge component is generally arranged and connected with the upper end of the photovoltaic bracket. In this embodiment, the ridge-crossing member, that is, the upper oblique beams of the oblique photovoltaic brackets on both sides of the ridge, may not be separately provided to be fixed together while crossing the ridge. In order to enable the upper oblique beams of the oblique photovoltaic brackets at the two sides of the ridge to span the ridge, the upper oblique beams 23 are lifted upwards through the oblique support truss, meanwhile, the upper oblique beams are lengthened upwards and fixed, specifically, the upper oblique beams 23 are provided with overhead sections 231 extending to the upper side of the ridge, and the overhead sections of the oblique photovoltaic brackets at the two sides of the ridge are provided with overhead fixing parts which are fixed in a crossing manner.

Firstly, oblique photovoltaic brackets and photovoltaic modules are arranged on oblique roofs at two sides of a ridge, and compared with the prior photovoltaic modules arranged on a single slope, the photovoltaic modules can be doubled, and under the condition of the same power generation efficiency, the power generation capacity can be doubled; in addition, the roof is fully covered by the photovoltaic component, so that sunlight is prevented from directly irradiating the roof, and a photovoltaic heat insulation layer is formed, so that the roof is effectively protected, the indoor temperature is reduced by 3-5 ℃, and the house stuffiness in hot days is effectively relieved.

And the photovoltaic modules are paved on the south and north slopes, so that the novel roof decoration method accords with Chinese symmetrical aesthetics, has a better visual effect, and is just like the refitting of the roof.

The scheme does not choose house orientation and house shape, so that the house shape of the whole double-slope roof with the high ridge can be utilized, and more house shapes can be covered. The photovoltaic panel is paved on the double slopes, so that the waste of the area is avoided; any orientation can better cope with the change of sunlight angle and adapt to a larger azimuth angle range.

Secondly, the photovoltaic module is arranged on the inclined support truss, the photovoltaic module is lifted to a certain height above the roof, on one hand, a photovoltaic heat insulation layer is formed between the photovoltaic module and the roof, on the other hand, the upper inclined beam can extend upwards to the upper side of the ridge to form an overhead section due to the fact that the upper inclined beam is higher, so that the roof can be spanned, a house type of a high ridge can be applied, and the roof is not only a common double-slope inclined roof without the ridge. Moreover, the cost is also lower than if the individual designs spanned the roof module, and is more desirable to market.

And thirdly, as the overhead sections of the inclined photovoltaic brackets at the two sides of the ridge are fixed in a crossed manner at the overhead fixing part, the inclined photovoltaic brackets at the two sides are connected into a whole, and the structure is stable and reliable.

Finally, the truss has the advantages that the rod pieces mainly bear tension or compression, the material effect can be fully exerted, the material is saved, the structure weight is reduced, and therefore the structure of the inclined support truss is adopted to stably support the photovoltaic module.

The diagonal support truss may be a conventional steel truss structure, as shown in fig. 1 and fig. 2, specifically, the diagonal support truss further includes a plurality of lower diagonal beams 21 corresponding to the plurality of upper diagonal beams and a plurality of truss web members 22 corresponding to and disposed between the lower diagonal beams and the upper diagonal beams, where the supporting heights of the plurality of truss web members from the lower side to the upper side are increased one by one, so as to raise the height of the overhead section, so that the overhead section can span a ridge, especially a higher ridge, and be suitable for a house shape of the high ridge.

Further, as shown in fig. 3, the structure of the lower oblique beam 21 is the same as that of the upper oblique beam 23, and for example, the lower oblique beam may be provided with a plurality of adjustment holes 211 along the longitudinal direction to form a hole arrangement structure, and both ends of the truss web member are connected with fixing bolts, and the fixing bolts are connected with the adjustment holes. The angle of the photovoltaic module can be adjusted by selecting truss web members with different lengths and selecting longitudinal positions of adjusting holes for fixing the truss web members with the upper oblique beams and the lower oblique beams, so that the solar angle change in different areas and seasons can be better dealt with, a larger azimuth angle range can be adapted, and more ridge height house types can be adapted.

In this embodiment, the components in the oblique photovoltaic bracket and the oblique support truss are all C-shaped steel. Of course, U steel may be substituted. Or using similar aluminum alloy members, etc.

Further, the oblique photovoltaic bracket is also provided with a middle supporting rod 25 connected with the overhead section of the oblique beams at two sides of the ridge, and the middle supporting rod 25 is horizontally arranged above the ridge. The upper oblique beams on two sides are connected more firmly, and the overhead sections of the upper oblique beams are positioned and supported, so that the structural stability is improved, and deformation is avoided. The overhead fixing parts of the overhead sections of the inclined photovoltaic brackets at the two sides of the ridge can be fixed by fixing bolts, and the fixing bolts penetrate through the adjusting holes and are fixed by tightening nuts.

In the embodiment, the bottom of the inclined support truss is fixed on the inclined roof by adopting a support hook component 3. As shown in fig. 6, the support hook assembly 3 includes a fixing member 31 and a hook. The oblique support truss is installed by adopting the hook structure, the support hook assembly is arranged on the roof in advance, and then the oblique support truss is fixed with the hook assembly, so that the installation is convenient and quick.

Specifically, the fixing member 31 includes a first oblique section extending obliquely along the oblique roof and a first upper bending section formed by bending upwards from one oblique side of the first oblique section, the first oblique section is fixed on the oblique roof, and the first upper bending section is connected with the hook. The hooks comprise an upper hook 33 and a lower hook 32, the lower hook comprises a second inclined section extending obliquely along the inclined roof, a second upper bending section formed by bending upwards from the obliquely upper side of the second inclined section, and a first lower bending section formed by bending downwards from the obliquely lower side of the second inclined section, and the first lower bending section is connected with the first upper bending section by adopting a fixing bolt; the upper hook comprises a third inclined section extending obliquely along the inclined roof, a fixing lug formed by bending upwards from the side surface of the inclined lower side of the third inclined section, and a second lower bending section formed by bending downwards from the inclined upper side of the third inclined section, wherein the second lower bending section is connected with the second upper bending section through a fixing bolt. The first upper bending section and the second upper bending section can be provided with U-shaped holes to be connected with the fixing bolts, so that the height of the fixing lugs can be adjusted, and the fixing lugs correspond to the height of the lower oblique beam. And the fixing lug is connected with the bottom of the inclined support truss by adopting a fixing bolt, in particular to the lower inclined beam upper adjusting hole, so that the lower inclined beam can be connected with the fixing lug with fixed position. The support hook component is formed by connecting a fixing piece, an upper hook and a lower hook through fixing bolts, so that the bottom of the inclined support truss is higher than an inclined roof, and the roof with tiles is prevented from being crushed. The side of the upper hook is provided with the fixing lug, the fixing lug can be attached to the side of the lower oblique beam and is connected with the adjusting hole on the lower oblique beam through the fixing bolt, so that the bottom of the diagonal support truss is conveniently connected with the support hook assembly.

The lower side of the photovoltaic module paved on the inclined roof extends beyond the lower side edge of the inclined roof, correspondingly, the upper inclined beam and the lower inclined beam are provided with overhanging sections with end parts which are in cross connection at the outer side of the wall surface, and the cross parts of the end parts of the upper inclined beam and the lower inclined beam are correspondingly provided with the adjusting holes. As shown in fig. 1 and 5, an overhanging oblique support 4 is arranged between the cross connection part of the overhanging section and the wall surface. The cantilever inclined support 4 comprises a lower inclined support 42 fixed on a wall surface and a first inclined support bar 41, wherein the lower end of the first inclined support is hinged with the lower inclined support, and the cross connection part of the upper end of the first inclined support and the cantilever section is fixed. The cantilever diagonal bracing 4 further comprises an upper diagonal bracing support 43 fixed on the wall surface and positioned above the lower diagonal bracing support, and a second diagonal bracing 44, the lower end of which is hinged with the upper diagonal bracing support, and the upper end of which is fixed with the first diagonal bracing. The upper end of the first diagonal brace 41 is connected with the adjusting holes at the crossing parts of the ends of the upper diagonal beam and the lower diagonal beam through fixing bolts, and the upper end of the second diagonal brace 44 is fixed with the first diagonal brace through the fixing bolts.

Because the upper inclined beam and the lower inclined beam are provided with overhanging sections with end parts which are in cross connection outside the wall surface, the area of the photovoltaic module can be increased, and the power generation efficiency is improved. In addition, an overhanging oblique support is arranged between the cross connection part of the overhanging section and the wall surface, and the overhanging section is fixed. Therefore, the upper part, the middle part and the lower part of the inclined roof photovoltaic bracket are all fixed, and the fixation is reliable.

Because the cantilever inclined support is provided with the first inclined support rod and the second inclined support rod fixed with the first inclined support rod, the reliability of the cantilever section support of the inclined photovoltaic support is improved.

As shown in fig. 5, the lower diagonal brace support 42 includes a vertical fixing section 421 and a horizontal connecting section 423 perpendicular to the vertical fixing section, the vertical fixing section 421 is connected to an expansion bolt 422 fixed to a wall surface, and the horizontal connecting section is hinged to the first diagonal brace 41 by a hinge bolt. The upper diagonal brace brackets 43 are identical in structure to the lower diagonal brace brackets 42 and will not be described in detail herein.

In one embodiment, as shown in FIG. 1, truss web 22 is perpendicular to the lower diagonal. In another embodiment, shown in fig. 7, truss web members 22 are diagonally crossed with respect to the lower diagonal beam, with two adjacent truss web members 22 being disposed in a splayed configuration. It will be appreciated that other variations of the diagonal bracing truss are possible.

While the utility model has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but includes, but is not limited to, the drawings and the description of the specific embodiments. Any modifications which do not depart from the functional and structural principles of the utility model are intended to be included within the scope of the appended claims.

Claims (10)

1. The utility model provides a install in photovoltaic system of double sloping roof, includes two slant photovoltaic supports and the photovoltaic module of installing in the slant photovoltaic support of corresponding installation on the sloping roof in ridge both sides, its characterized in that, the slant photovoltaic support is equipped with the slant braced truss, the bottom of slant braced truss is fixed in the sloping roof, the slant braced truss is equipped with the upper sloping that vertically extends, the upper sloping is equipped with the overhead section that extends to the ridge top, and the overhead section of the slant photovoltaic support of ridge both sides is equipped with carries out the overhead fixed part of alternately fixing.

2. The photovoltaic system installed on a double-slope sloping roof according to claim 1, wherein the diagonal support truss further comprises a plurality of lower sloping beams arranged corresponding to the plurality of upper sloping beams and a plurality of truss web members arranged between the lower sloping beams and the upper sloping beams, and the heights of the plurality of truss web members are increased one by one from the lower side to the upper side so as to raise the height of the overhead section.

3. The photovoltaic system installed on the double-slope inclined roof according to claim 2, wherein the lower inclined beam and the upper inclined beam are longitudinally provided with a plurality of adjusting holes, two ends of the truss web member are connected with fixing bolts, and the fixing bolts are connected with the adjusting holes.

4. The photovoltaic system mounted on a double-slope sloping roof according to claim 1, wherein the sloping photovoltaic bracket is further provided with a middle support bar connected with the overhead sections of the sloping beams on both sides of the ridge; and/or the overhead fixing parts of the overhead sections of the inclined photovoltaic brackets at the two sides of the ridge are fixed by fixing bolts.

5. The photovoltaic system of claim 1, wherein the bottom of the diagonal support truss is secured to the pitched roof by a support hook assembly comprising a securing member secured to the pitched roof and a hook connecting the securing member and the bottom of the diagonal support truss.

6. The photovoltaic system mounted on a double-slope sloping roof according to claim 5, wherein the fixing member comprises a first sloping section extending obliquely along the sloping roof and a first upper bending section formed by bending upwards from one sloping side of the first sloping section, the first sloping section is fixed on the sloping roof, and the first upper bending section is connected with the hook.

7. The photovoltaic system mounted on a double-slope sloping roof according to claim 6, wherein the hook comprises an upper hook and a lower hook, the lower hook comprises a second sloping section extending along the sloping roof in a sloping manner, a second upper bending section formed by bending upwards from the sloping upper side of the second sloping section, and a first lower bending section formed by bending downwards from the sloping lower side of the second sloping section, and the first lower bending section is connected with the first upper bending section by adopting a fixing bolt; the upper hook comprises a third inclined section extending obliquely along the inclined roof, a fixing lug formed by bending upwards from the side surface of the inclined lower side of the third inclined section, and a second lower bending section formed by bending downwards from the inclined upper side of the third inclined section, wherein the second lower bending section is connected with the second upper bending section through a fixing bolt, and the fixing lug is connected with the bottom of the inclined support truss through a fixing bolt.

8. The photovoltaic system installed on a double-slope inclined roof according to claim 2, wherein the upper inclined beam and the lower inclined beam are provided with overhanging sections with end parts connected in a crossed manner outside the wall surface, and overhanging inclined supports are arranged between the cross connection parts of the overhanging sections and the wall surface.

9. The photovoltaic system mounted on a double-slope sloping roof according to claim 8, wherein the overhanging diagonal members comprise a lower diagonal member support fixed on the wall surface and a first diagonal member with a lower end hinged to the lower diagonal member support and an upper end fixed at a crossing portion of the overhanging section.

10. The photovoltaic system of claim 8, wherein the overhanging diagonal members further comprise an upper diagonal member fixed to the wall surface and positioned above the lower diagonal member, and a second diagonal member having a lower end hinged to the upper diagonal member and an upper end fixed to the first diagonal member.