Photovoltaic roof structure

Abstract

The utility model discloses a photovoltaic roof structure which comprises a framework detachably arranged on a purline, and a plurality of photovoltaic panels arranged on the framework, the plurality of rectangular photovoltaic modules are arranged on the framework and are respectively and uniformly arranged on the framework at intervals; the joint cover plates are arranged in gaps among the four adjacent corners of the adjacent rectangular photovoltaic modules, and the joint cover plates are connected with the four adjacent corners at the same time and seal the gaps; and the waterproof cover plates are arranged between every two adjacent rectangular photovoltaic modules and seal a gap between every two adjacent rectangular photovoltaic modules, and each end part of the joint cover plate is pressed tightly through one end of one waterproof cover plate. Compared with a traditional photovoltaic roof, the photovoltaic roof structure provided by the utility model has the advantages that metal tiles are removed, the photovoltaic roof structure still has a water leakage prevention function through the combination of the waterproof cover plate and the joint cover plate, meanwhile, the load borne by the purline is reduced, and the stability of the whole roof structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and particularly relates to a photovoltaic roof structure. Background Art

[0002] At present, photovoltaic power generation technology is more and more widely applied in rural areas. Photovoltaic panels are installed on the roofs of many rural buildings for power generation. In traditional photovoltaic roofs, in order to avoid water leakage of the photovoltaic roof, metal tiles are usually installed below the photovoltaic modules to enhance the waterproof performance. However, the added metal tiles will increase the load borne by the purlins, resulting in an unstable overall roof structure.

[0003] Therefore, the existing technology still needs to be improved. Content of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide a photovoltaic roof structure, aiming to solve the problem that in the existing technology, in order to avoid water leakage of the photovoltaic roof, metal tiles are usually installed below the photovoltaic modules to enhance the waterproof performance, but the added metal tiles will increase the load borne by the purlins below, resulting in an unstable overall roof structure.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0006] In the first aspect, an embodiment of the utility model provides a photovoltaic roof structure, including:

[0007] A skeleton, which is detachably arranged on the purlin;

[0008] Rectangular photovoltaic modules, with multiple pieces of the rectangular photovoltaic modules being respectively arranged on the skeleton at uniform intervals;

[0009] A joint cover plate, which is arranged in the gaps between the four adjacent corners of each adjacent rectangular photovoltaic module, and the joint cover plate is simultaneously connected to the four adjacent corners and seals the gaps;

[0010] A waterproof cover plate, which is arranged between each two adjacent rectangular photovoltaic modules and seals the gaps between the two adjacent rectangular photovoltaic modules, and each end of the joint cover plate is respectively pressed by one end of a waterproof cover plate.

[0011] As a further improved technical solution, side grooves are respectively provided at four top side edges of the rectangular photovoltaic module, the side edges of the joint cover plate are all provided with clamping plates, each of the clamping plates on the joint cover plate is respectively clamped with two adjacent side grooves on two adjacent rectangular photovoltaic modules to seal the clamping position, two side edges of the waterproof cover plate are respectively clamped with two adjacent side grooves on two adjacent rectangular photovoltaic modules to seal the clamping position, and each of the clamping plates is respectively pressed by the end of the waterproof cover plate close to it.

[0012] As a further improved technical solution, a sealing rubber strip is further provided in each of the side grooves, and the sealing rubber strip is arranged between the side edge of the waterproof cover plate and the inner side wall of the side groove to seal the side groove.

[0013] As a further improved technical solution, a sealing rubber strip is provided between the side edge of the clamping plate and the inner side wall of the side groove.

[0014] As a further improved technical solution, the framework is formed by splicing a plurality of longitudinal U-shaped beams and a plurality of transverse U-shaped beams, and each of the photovoltaic modules is respectively arranged on each of the longitudinal U-shaped beams and each of the transverse U-shaped beams.

[0015] As a further improved technical solution, each of the longitudinal U-shaped beams is respectively fixedly connected with the purlin by a first screw, each of the transverse U-shaped beams is respectively arranged between two adjacent longitudinal U-shaped beams, and the end of the transverse U-shaped beam is fixedly connected with the side part of the longitudinal U-shaped beam by a second screw.

[0016] As a further improved technical solution, the photovoltaic roof structure further includes:

[0017] A connecting component; the connecting component is respectively arranged in each of the longitudinal U-shaped beams, the top end of the connecting component is detachably connected with two adjacent side grooves distributed transversely at the same time, and the bottom end of the connecting component is detachably connected with the top of the longitudinal U-shaped beam.

[0018] As a further improved technical solution, the connecting component includes a pressing block, a screw rod and a cross bar. Bent grooves are respectively arranged at two ends of the pressing block, the bent grooves at two ends of the pressing block are respectively clamped with the side edges of two adjacent side grooves distributed transversely, first bending surfaces extending inwards are respectively arranged at the top parts of two side plates of the longitudinal U-shaped beam, the cross bar is arranged in the longitudinal U-shaped beam and the top sides of two ends of the cross bar are respectively abutted against the first bending surfaces on two side plates of the longitudinal U-shaped beam, the screw rod penetrates through the pressing block and the cross bar, and the head of the screw rod abuts against the top side of the pressing block, and the bottom end of the screw rod is in threaded connection with the cross bar.

[0019] As a further improved technical solution, each of the transverse U-shaped beams is respectively provided with the connecting component. The top end of the connecting component is detachably connected to two adjacent side grooves distributed longitudinally at the same time, and the bottom end of the connecting component is detachably connected to the top of the transverse U-shaped beam.

[0020] As a further improved technical solution, the bent grooves at both ends of the pressing block are respectively clamped with the sides of two adjacent side grooves distributed longitudinally. Second bending surfaces extending inward are respectively provided at the tops of the two side plates of the transverse U-shaped beam. The cross arm is arranged in the transverse U-shaped beam, and the top sides at both ends of the cross arm are respectively abutted against the second bending surfaces on the two side plates of the transverse U-shaped beam. The screw rod penetrates through the pressing block and the cross arm, and the head of the screw rod abuts against the top side of the pressing block, and the bottom end of the screw rod is threadedly connected to the cross arm.

[0021] Compared with the prior art, the embodiment of the present utility model has the following advantages:

[0022] The embodiment of the present utility model provides a photovoltaic roofing structure, including: a skeleton detachably arranged on purlins; a plurality of rectangular photovoltaic modules evenly spaced and respectively arranged on the skeleton; a joint cover plate arranged in the gaps between the four adjacent corners of each adjacent rectangular photovoltaic module, and the joint cover plate is simultaneously connected to the four adjacent corners and seals the gaps; a waterproof cover plate arranged between each two adjacent rectangular photovoltaic modules and seals the gaps between the two adjacent rectangular photovoltaic modules, and each end of the joint cover plate is respectively pressed by one end of a waterproof cover plate. Compared with the traditional photovoltaic roofing, the photovoltaic roofing structure provided by the present utility model removes metal tiles. Through the combination of the waterproof cover plate and the joint cover plate, the photovoltaic roofing structure still has the function of preventing water leakage. At the same time, the load borne by the purlins is reduced, and the stability of the overall roofing structure is improved. Description of the Drawings

[0023] Figure 1 is a three-dimensional structural schematic diagram of a photovoltaic roofing structure provided by the present utility model;

[0024] Figure 2 is a three-dimensional structural schematic diagram of the joint cover plate in the present utility model;

[0025] Figure 3 is Figure 1 an enlarged schematic diagram of A in

[0026] Figure 4 is a connection structural schematic diagram of a longitudinal U-shaped beam, a transverse U-shaped beam and a purlin in the present utility model;

[0027] Figure 5 is Figure 4Enlarged schematic diagram of D in [the figure];

[0028] Figure 6 is Figure 4 Enlarged schematic diagram of E in [the figure];

[0029] Figure 7 is Figure 1 Enlarged schematic diagram of B in [the figure];

[0030] Figure 8 Schematic cross-sectional structure diagram of the horizontal U-shaped beam in the present utility model;

[0031] Figure 9 is Figure 1 Enlarged schematic diagram of C in [the figure].

[0032] In the figure: 1, purlin; 2, skeleton; 201, longitudinal U-shaped beam; 2011, first curved surface; 202, horizontal U-shaped beam; 2021, second curved surface; 3, rectangular photovoltaic module; 301, side groove; 4, joint cover plate; 401, clamping plate; 5, waterproof cover plate; 6, sealing strip; 7, first screw; 8, second screw; 9, connecting component; 901, pressing block; 9011, bent groove; 902, screw rod; 903, cross arm. Detailed implementation manners

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0034] Embodiment:

[0035] As Figures 1 - 9 shown. Among them, the photovoltaic roof structure includes: a skeleton 2, the skeleton 2 is detachably arranged on the purlin 1; a plurality of rectangular photovoltaic modules 3, the rectangular photovoltaic modules 3 are respectively and evenly arranged on the skeleton 2; a joint cover plate 4, the joint cover plate 4 is arranged in the gaps between the four adjacent corners of each adjacent rectangular photovoltaic module 3, and the joint cover plate 4 is simultaneously connected to the four adjacent corners and seals the gaps; a waterproof cover plate 5, the waterproof cover plate 5 is arranged between each two adjacent rectangular photovoltaic modules 3 and seals the gap between the two adjacent rectangular photovoltaic modules 3, and each end of the joint cover plate 4 is respectively pressed by one end of a waterproof cover plate 5.

[0036] As Figures 1 - 3As shown, in this embodiment, the photovoltaic roof structure includes a framework 2 disposed on a purlin 1, rectangular photovoltaic modules 3 mounted on the framework 2, a joint cover plate 4 for sealing voids, and a waterproof cover plate 5 for sealing gaps; wherein, a plurality of the rectangular photovoltaic modules 3 are provided, and all the rectangular photovoltaic modules 3 are mounted in the same orientation. For example Figure 1 as shown in Figure 1 , the length directions of all the rectangular photovoltaic modules 3 are along the transverse direction, there are gaps with the same width between every two adjacent rectangular photovoltaic modules 3, strip-shaped waterproof cover plates 5 are provided at each gap to seal the gap between two adjacent rectangular photovoltaic modules 3, there are cross-shaped voids between four adjacent corners, a joint cover plate 4 is provided at each cross-shaped void, the joint cover plate 4 is simultaneously connected to and seals the cross-shaped void at four adjacent corners, and each end portion of the joint cover plate 4 is respectively pressed by one end of a corresponding waterproof cover plate 5, thereby enhancing the waterproof performance at the joint between the joint cover plate 4 and the waterproof cover plate 5. Compared with the traditional photovoltaic roof, the photovoltaic roof structure provided by the present utility model removes metal tiles, and through the combination of the waterproof cover plate 5 and the joint cover plate 4, the photovoltaic roof structure still has the function of preventing water leakage. At the same time, the load borne by the purlin 1 is reduced, and the stability of the overall roof structure is improved.

[0037] As a further solution, side grooves 301 are respectively provided at four top side edges of the rectangular photovoltaic module 3 along the direction of its top side edge, clamping plates 401 are provided on four side edges of the joint cover plate 4, each of the clamping plates 401 on the joint cover plate 4 is respectively clamped with two adjacent side grooves 301 on two adjacent rectangular photovoltaic modules 3 to seal the clamping position, and two side edges of the waterproof cover plate 5 are respectively clamped with two adjacent side grooves 301 on two adjacent rectangular photovoltaic modules 3 to seal the clamping position, and each of the clamping plates 401 is respectively pressed by the end portion of the waterproof cover plate 5 close to it. Specifically, four side grooves 301 are provided on the top side of each rectangular photovoltaic module 3, and each waterproof cover plate 5 on each gap is clamped and sealed with the side groove 301 through its bent side edge, and clamping plates 401 are provided on four side edges of the joint cover plate 4, and each clamping plate 401 is used to connect two adjacent side grooves 301 on two adjacent sides of two adjacent rectangular photovoltaic modules 3, that is, both sides of each clamping plate 401 respectively extend into two adjacent side grooves 301, the middle part of the joint cover plate 4 is suspended, and is fixedly connected to the corners of each rectangular photovoltaic module 3 through each clamping plate 401, and is pressed by the end portions of the waterproof cover plates 5 located at its four sides. The length of the clamping plate 401 is extremely short, and the clamping plate 401 only covers the end portions of each gap, mainly for fixing the suspended middle part of the joint cover plate 4, and reducing its specifications to reduce costs; at the same time, the waterproof cover plates 5 located at the four sides of the joint cover plate 4 can be integrally formed with the clamping plates 401 on the four sides of the joint cover plate 4, which saves more time during installation.

[0038] As Figures 4 - 6As a further solution, as shown in the figure, a sealing strip 6 is further provided in each of the side grooves 301. The sealing strip 6 is arranged between the side of the waterproof cover plate 5 and the inner side wall of the side groove 301 to seal the side groove 301. The sealing strip 6 can not only fasten the waterproof cover plate 5 in the side groove 301, but also fill the gap between the inner side wall of the side groove 301 and the side of the waterproof cover plate 5 to enhance the waterproof performance.

[0039] Meanwhile, the sealing strip 6 is provided between the side of the clamping plate 401 and the inner side wall of the side groove 301. Similarly, there will also be a gap between the side of the clamping plate 401 and the inner side wall of the side groove 301, and the waterproof performance can be enhanced by filling the gap with the sealing strip 6.

[0040] In this embodiment, the framework 2 is formed by splicing a plurality of longitudinal U-shaped beams and a plurality of transverse U-shaped beams. Each of the photovoltaic modules is respectively arranged on each of the longitudinal U-shaped beams and each of the transverse U-shaped beams. The framework 2 in this embodiment is composed of U-shaped beams, which can reduce its own weight and reduce the load borne by the purlin 1 to a certain extent.

[0041] As a further solution, each of the longitudinal U-shaped beams is fixedly connected to the purlin 1 through a first screw 7. Each of the transverse U-shaped beams is respectively arranged between two adjacent longitudinal U-shaped beams, and the end of the transverse U-shaped beam is fixedly connected to the side part of the longitudinal U-shaped beam through a second screw 8. Meanwhile, the transverse U-shaped beam can also be connected to the purlin 1 through the second screw 8. The framework 2 in this embodiment is detachable, which is convenient for transportation.

[0042] As a further solution, the photovoltaic roof structure further includes a connecting component 9. The connecting component 9 is respectively arranged in each of the longitudinal U-shaped beams. The top end of the connecting component 9 is detachably connected to two adjacent side grooves 301 distributed transversely at the same time, and the bottom end of the connecting component 9 is detachably connected to the top of the longitudinal U-shaped beam. Specifically, the top end of the connecting component 9 is used to press the side groove 301, and the bottom end of the connecting component 9 is locked with the longitudinal U-shaped beam, so as to fix the rectangular photovoltaic module 3 on the framework 2.

[0043] Such as Figure 7As shown, in this embodiment, the connecting component 9 includes a pressing block 901, a screw 902 and a cross arm 903. Both ends of the pressing block 901 are respectively provided with bent grooves 9011. The bent grooves 9011 at both ends of the pressing block 901 are respectively clamped with the sides of two adjacent side grooves 301 distributed horizontally. The top parts of the two side plates of the longitudinal U-shaped beam are respectively provided with first bending surfaces 2011 extending inwards. The cross arm 903 is arranged inside the longitudinal U-shaped beam, and the top sides of both ends of the cross arm 903 are respectively abutted against the first bending surfaces 2011 on the two side plates of the longitudinal U-shaped beam. The screw 902 penetrates through the pressing block 901 and the cross arm 903, and the head of the screw 902 is abutted against the top side of the pressing block 901. The bottom end of the screw 902 is threadedly connected with the cross arm 903. Specifically, the pressing block 901 is used to press the side groove 301 of the rectangular photovoltaic module 3, the cross arm 903 is used to abut against the tops of both sides of the longitudinal U-shaped beam, and the screw 902 is used to lock the pressing block 901 and the cross arm 903. The connecting component 9 in this embodiment is detachable, which is convenient for replacing the damaged rectangular photovoltaic module 3 in the later stage.

[0044] As a further solution, the connecting component 9 is respectively arranged in each transverse U-shaped beam. The top end of the connecting component 9 is detachably connected with two adjacent side grooves 301 distributed longitudinally at the same time. The bottom end of the connecting component 9 is detachably connected with the top of the transverse U-shaped beam. Specifically, the top end of the connecting component 9 is used to press the side groove 301 of the rectangular photovoltaic module 3, and the bottom end of the connecting component 9 is locked with the transverse U-shaped beam, so as to fix the rectangular photovoltaic module 3 on the framework 2.

[0045] As Figure 8 and Figure 9 shown, as an even further solution, the bent grooves 9011 at both ends of the pressing block 901 are respectively clamped with the sides of two adjacent side grooves 301 distributed longitudinally. The top parts of the two side plates of the transverse U-shaped beam are respectively provided with second bending surfaces 2021 extending inwards. The cross arm 903 is arranged inside the transverse U-shaped beam, and the top sides of both ends of the cross arm 903 are respectively abutted against the second bending surfaces 2021 on the two side plates of the transverse U-shaped beam. The screw 902 penetrates through the pressing block 901 and the cross arm 903, and the head of the screw 902 is abutted against the top side of the pressing block 901. The bottom end of the screw 902 is threadedly connected with the cross arm 903. Specifically, the pressing block 901 is used to press the side groove 301 of the rectangular photovoltaic module 3, the cross arm 903 is used to abut against the tops of both sides of the transverse U-shaped beam, and the screw 902 is used to lock the pressing block 901 and the cross arm 903. The connecting component 9 in this embodiment is detachable, which is convenient for replacing the damaged rectangular photovoltaic module 3 in the later stage.

[0046] In summary, the embodiment of the present utility model provides a photovoltaic roof structure, including: a skeleton 2, the skeleton 2 is detachably arranged on a purlin 1; rectangular photovoltaic modules 3, there are multiple rectangular photovoltaic modules 3 and they are respectively arranged on the skeleton 2 at uniform intervals; a joint cover plate 4, the joint cover plate 4 is arranged in the gap between the four adjacent corners of each adjacent rectangular photovoltaic module 3, the joint cover plate 4 is simultaneously connected to the four adjacent corners and seals the gap; a waterproof cover plate 5, the waterproof cover plate 5 is arranged between each two adjacent rectangular photovoltaic modules 3 and seals the gap between the two adjacent rectangular photovoltaic modules 3, and each end of the joint cover plate 4 is respectively pressed by one end of a waterproof cover plate 5. Compared with the traditional photovoltaic roof, the photovoltaic roof structure provided by the present utility model removes the metal tiles. Through the combination of the waterproof cover plate 5 and the joint cover plate 4, the photovoltaic roof structure still has the function of preventing water leakage. At the same time, the load borne by the purlin 1 is reduced, and the stability of the overall roof structure is improved.

[0047] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0049] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0052] Certainly, the description of the above embodiments of the present utility model is relatively detailed, but it should not be construed as a limitation on the protection scope of the present utility model. The present utility model may have other various implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the protection scope of the present utility model. The protection scope of the present utility model is subject to the appended claims.

Claims

1. A photovoltaic roof structure, characterized in that: include: A frame, wherein the frame is detachably arranged on the purlin; A rectangular photovoltaic module, wherein the rectangular photovoltaic module is provided in a plurality of pieces and is evenly spaced and arranged on the frame; A seam cover plate, the seam cover plate is arranged in the gaps between four adjacent corners of each adjacent rectangular photovoltaic assembly, the seam cover plate is simultaneously connected to the four adjacent corners and seals the gaps; A waterproof cover plate is arranged between each two adjacent rectangular photovoltaic modules and seals the gap between the two adjacent rectangular photovoltaic modules. Each end of the joint cover plate is pressed by one end of the waterproof cover plate.

2. The photovoltaic roof structure according to claim 1, characterized in that: The four top sides of the rectangular photovoltaic module are respectively provided with side grooves opened along the top side directions thereof, and the four sides of the seam cover plate are provided with clamping plates, and each of the clamping plates on the seam cover plate is respectively clamped with the two adjacent side grooves on each two adjacent rectangular photovoltaic modules and the clamping joints are sealed, and the two side edges of the waterproof cover plate are respectively clamped with the two adjacent side grooves on the two adjacent rectangular photovoltaic modules and the clamping joints are sealed, and each of the clamping plates is respectively pressed by the end of the waterproof cover plate adjacent to it.

3. The photovoltaic roof structure according to claim 2, characterized in that: A sealing strip is also provided in each of the side grooves. The sealing strip is provided between the side edge of the waterproof cover plate and the inner side wall of the side groove to seal the side groove.

4. The photovoltaic roof structure according to claim 3, characterized in that: The sealing strip is arranged between the side edge of the card plate and the inner side wall of the side groove.

5. The photovoltaic roof structure according to claim 2, characterized in that: The frame is formed by splicing a plurality of longitudinal U-shaped beams and a plurality of transverse U-shaped beams, and each of the photovoltaic components is respectively arranged on each of the longitudinal U-shaped beams and each of the transverse U-shaped beams.

6. The photovoltaic roof structure according to claim 5, characterized in that: Each of the longitudinal U-shaped beams is fixedly connected to the purlin by a first screw, each of the transverse U-shaped beams is arranged between two adjacent longitudinal U-shaped beams, and the end of the transverse U-shaped beam is fixedly connected to the side of the longitudinal U-shaped beam by a second screw.

7. The photovoltaic roof structure according to claim 5, characterized in that: Also includes: Connecting assembly; each of the longitudinal U-shaped beams is provided with the connecting assembly, the top end of the connecting assembly is detachably connected to the two adjacent side grooves distributed along the transverse direction, and the bottom end of the connecting assembly is detachably connected to the top of the longitudinal U-shaped beam.

8. The photovoltaic roof structure according to claim 7, characterized in that: The connecting assembly includes a pressure block, a screw and a cross arm, and both ends of the pressure block are respectively provided with curved grooves, and the curved grooves at both ends of the pressure block are respectively clamped with the side edges of the two adjacent side grooves distributed along the transverse direction, and the tops of the two side plates of the longitudinal U-shaped beam are respectively provided with first curved surfaces extending inwards, and the cross arm is arranged in the longitudinal U-shaped beam, and the top sides of both ends of the cross arm are respectively abutted with the first curved surfaces on the two side plates of the longitudinal U-shaped beam, and the screw passes through the pressure block and the cross arm, and the head of the screw is abutted with the top side of the pressure block, and the bottom end of the screw is threadedly connected with the cross arm.

9. The photovoltaic roof structure according to claim 8, characterized in that: The connecting assembly is respectively arranged in each of the transverse U-shaped beams, the top end of the connecting assembly is detachably connected to the two adjacent side grooves distributed along the longitudinal direction, and the bottom end of the connecting assembly is detachably connected to the top of the transverse U-shaped beam.

10. The photovoltaic roof structure according to claim 9, characterized in that: The curved grooves at both ends of the pressing block are respectively clamped with the side edges of the two adjacent side grooves distributed along the longitudinal direction, the tops of the two side plates of the transverse U-shaped beam are respectively provided with second curved surfaces extending inwards, the cross arm is arranged in the transverse U-shaped beam and the top sides of both ends of the cross arm are respectively abutted with the second curved surfaces on the two side plates of the transverse U-shaped beam, the screw rod passes through the pressing block and the cross arm, and the head of the screw rod is abutted with the top side of the pressing block, and the bottom end of the screw rod is threadedly connected with the cross arm.

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