Photovoltaic rail hook type mounting structure and roof photovoltaic power station

Abstract

This utility model discloses a photovoltaic rail hook-type installation structure and a rooftop photovoltaic power station, belonging to the field of photovoltaic technology, and solves the problem that existing photovoltaic rail hook-type installation structures cannot be compatible with both horizontal and vertical arrangements of photovoltaic modules. The photovoltaic rail hook-type installation structure includes a hook assembly, a support plate, a guide rail, a pressure plate, and fasteners. The top of the hook assembly has a supporting part, and the support plate is supported on the supporting part. The guide rail and pressure plate are disposed on the support plate. The pressure plate has a pressing part, which presses against the guide rail. The fasteners connect the pressure plate, the support plate, and the supporting part. The support plate can rotate relative to the fasteners when the fasteners are loosened. The support plate has a first installation angle and a second installation angle when the fasteners are tightened. The support plate corresponds to the vertical installation state of the photovoltaic module at the first installation angle and the horizontal installation state of the photovoltaic module at the second installation angle.

Description

[Technical Field]

[0001] This utility model belongs to the field of photovoltaic technology, specifically relating to rooftop photovoltaic power stations. [Background Technology]

[0002] In existing technologies, the support structure for photovoltaic (PV) power stations mounted on sloping roofs connects the PV rails and hook components using bolts. PV modules are rectangular in structure, and PV power stations typically use rectangular arrays of these modules. There are generally two installation methods: horizontal and vertical. For sloping roof PV power stations, horizontal installation means the length of the PV modules aligns with the horizontal direction of the array (i.e., the left-right direction of the building), while vertical installation means the length of the PV modules aligns with the vertical direction of the array (i.e., the front-back direction of the building).

[0003] Whether it is horizontal or vertical installation, the installation structure of the hook assembly is fixed. However, when vertically installed, the length direction of the photovoltaic rail is perpendicular to the tilt direction of the sloping roof, while when horizontally installed, the length direction of the photovoltaic rail is consistent with the tilt direction of the sloping roof. Since photovoltaic modules are mostly installed vertically, the hook assembly is also designed for vertical installation. Therefore, the conventional photovoltaic rail hook installation structure cannot be compatible with both horizontal and vertical photovoltaic module arrangements. [Utility Model Content]

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a photovoltaic rail hook-type installation structure and a rooftop photovoltaic power station, thereby resolving the issue that existing photovoltaic rail hook-type installation structures cannot accommodate both horizontal and vertical arrangements of photovoltaic modules.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] First, a photovoltaic rail hook-type installation structure is provided, including a hook assembly, a support plate, a guide rail, a pressure plate, and fasteners. The top of the hook assembly is provided with a support portion, the support plate is supported on the support portion, the guide rail and the pressure plate are disposed on the support plate, the pressure plate is provided with a pressing portion, the pressing portion is pressed onto the guide rail, and the fasteners connect the pressure plate, the support plate, and the support portion. The support plate can rotate relative to the fasteners when the fasteners are loosened. The support plate has a first installation angle and a second installation angle when the fasteners are tightened. The support plate corresponds to the vertical installation state of the photovoltaic module at the first installation angle, and the support plate corresponds to the horizontal installation state of the photovoltaic module at the second installation angle.

[0007] Preferably, a guide rail limiting structure is provided between the tray and the bottom of the guide rail.

[0008] Preferably, the guide rail limiting structure includes a limiting part that protrudes from the tray and is L-shaped, and a limiting groove is formed between the limiting part and the tray body. The bottom of the guide rail is provided with an elongated groove extending along the length direction of the guide rail, and a limiting protrusion is provided on one side of the width of the opening of the elongated groove. The limiting protrusion cooperates with the limiting groove.

[0009] Preferably, the pallet is provided with a through hole, which is clearance-fitted with a fastener; and / or, the pressure plate is provided with an elongated hole, which is clearance-fitted with a fastener.

[0010] Preferably, the fastener is an internal hexagon bolt, and the support portion is provided with a threaded hole. The internal hexagon bolt passes through the through hole and the elongated hole and is connected to the threaded hole.

[0011] Preferably, a fixing groove is provided on one side of the bottom of the guide rail, and the pressing part cooperates with the fixing groove to press and fix the guide rail.

[0012] Preferably, the fixing groove includes a bottom wall and an outer wall. The outer wall includes an inclined section extending obliquely upward from the bottom and a vertical section connected to the upper end of the inclined section. A bridging part is provided between the pressing part and the pressure plate body. A fitting groove is provided between the bridging part and the pressing part. An inclined surface is provided on one side of the opening of the fitting groove. The inclined section cooperates with the inclined surface, and the vertical section extends into the inner side of the fitting groove.

[0013] Preferably, the top of the guide rail is provided with a T-shaped mounting groove, which is connected to the pressure block assembly. The pressure block assembly includes a lower pressure block, an upper pressure block, and a pressure block bolt. The bottom of the lower pressure block is provided with a buckle, which cooperates with the mounting groove.

[0014] Preferably, the hook assembly includes a hook base, a first hook, and a second hook. The hook base includes a base plate and a side plate. The first hook has a Z-shaped structure, including a first fixed side, a second fixed side, and a connecting side connecting the first fixed side and the second fixed side. The second hook has an L-shaped structure, including a vertically connected support portion and a connecting portion. The first fixed side and the side plate are stacked and fixed with bolts, and the connecting portion is stacked and fixed with the second fixed side.

[0015] In addition, a rooftop photovoltaic power station is also provided, including the aforementioned photovoltaic rail hook-type installation structure.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. When the fastener is not tightened, the tray can rotate around the fastener relative to the support part of the hook assembly. When the fastener is tightened, the tray has a first installation angle and a second installation angle. The tray corresponds to the vertical installation state of the photovoltaic module at the first installation angle and the horizontal installation state of the photovoltaic module at the second installation angle. Corresponding to the vertical and horizontal installation of the photovoltaic module, the tray can be rotated to the corresponding installation angle to fix the fastener, thus fixing the first and second installation angles. Therefore, the tray rotation angle is compatible with both horizontal and vertical arrangement of photovoltaic modules.

[0018] When the photovoltaic (PV) system is installed vertically, the length of the PV modules is aligned with the longitudinal direction of the PV module array (i.e., the front-to-back direction of the building), and the length of the guide rail is perpendicular to the slope of the roof. When the PV system is installed horizontally, the mounting structure of the hook assembly remains unchanged, and the support plate can rotate 90 degrees around the fastener. This is equivalent to the support plate, along with the guide rail and pressure plate mounted on it, rotating 90 degrees together around the fastener. Thus, the installation relationship between the guide rail and the support plate remains unchanged, but compared to the vertical installation, the length of the guide rail is now aligned with the slope of the roof.

[0019] 2. A guide rail limiting structure is provided between the tray and the bottom of the guide rail to further strengthen the connection between the guide rail and the tray. The limiting protrusion and the limiting groove are mainly used to restrict the vertical movement of the guide rail. Because the pressing part presses against the guide rail on the side opposite to where the limiting protrusion is located, if only the pressing part on the side of the guide rail is under force, it will cause uneven force distribution, and the other side will easily separate from the tray. The combination of the limiting protrusion and the limiting groove can avoid this situation.

[0020] 3. Because the support plate has a through hole, which is clearance-fitted with the fastener, the support plate can rotate relative to the fastener when the fastener is not fixed. Because the pressure plate has an elongated hole, which is clearance-fitted with the fastener, the pressure plate can move relative to the fastener when the fastener is not fixed, allowing the pressing part to extend into the fixing groove to form a fit. Because the fastener is a hexagon socket head cap screw, and the support part has a threaded hole, the hexagon socket head cap screw passes through the through hole and the elongated hole and connects to the threaded hole. Therefore, when the hexagon socket head cap screw is tightened, it generates a downward force on the pressure plate, which in turn generates a downward force on the guide rail, thereby pressing the guide rail tightly.

[0021] 4. Since the fixing groove includes a bottom wall and an outer wall, the outer wall includes an inclined section extending obliquely upwards from the bottom and a vertical section connected to the upper end of the inclined section. A bridging part is provided between the pressing part and the pressure plate body, and an interlocking groove is provided between the bridging part and the pressing part. An inclined surface is provided on one side of the opening of the interlocking groove. The inclined section cooperates with the inclined surface, and the vertical section extends into the inner side of the interlocking groove. Therefore, after the fastener is tightened, the pressure plate is subjected to a downward force, mainly relying on the vertical section to generate a pressing force on the bottom surface of the fixing groove bottom wall. The cooperation between the inclined section and the inclined surface can prevent horizontal misalignment between the pressure plate and the guide rail.

[0022] 5. The top of the guide rail is provided with a T-shaped mounting groove, which is connected to the pressure block assembly. When installing the photovoltaic module: the elastic support leg on one side of the lower pressure block in the pressure block assembly is engaged with one side of the mounting groove on the upper side of the guide rail. Pressing down forcefully will insert both elastic support legs into the mounting groove on the upper side of the guide rail. The lower surface of the photovoltaic module is in contact with the upper surface of the guide rail. The pressing flange of the upper pressure block presses on the upper surface of the photovoltaic module. When tightening the pressure block bolts, the lower pressure block is lifted up, and the buckle engages with the inner protruding edges on both sides of the mounting groove opening to realize the installation of the photovoltaic module.

[0023] 6. The hook assembly includes a hook base, a first hook, and a second hook. When installing the hook base, self-tapping screws are used to install the assembled hook base and hook assembly on the roof. The first hook and the second hook are fixed with bolts, and the first hook is fixed with the hook base with bolts. Therefore, the hook assembly can lift the photovoltaic module and maintain a reasonable gap between the photovoltaic module and the roof.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0025] The utility model will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to vertical installation;

[0027] Figure 2 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to vertical installation;

[0028] Figure 3 This is a schematic diagram of the photovoltaic rail hook-type installation structure of this utility model during vertical installation.

[0029] Figure 4 This is a schematic diagram of the photovoltaic rail hook-type installation structure of this utility model during vertical installation.

[0030] Figure 5This is a schematic diagram of the photovoltaic rail hook-type installation structure of this utility model during vertical installation.

[0031] Figure 6 This is a schematic diagram of the photovoltaic rail hook-type installation structure of this utility model during vertical installation.

[0032] Figure 7 This is a schematic diagram of the hook base plate in this utility model;

[0033] Figure 8 This is a schematic diagram of the combination of the first hook and the second hook in this utility model;

[0034] Figure 9 A schematic diagram of a photovoltaic module mounted on a guide rail;

[0035] Figure 10 This is a schematic diagram of the briquetting assembly.

[0036] Figure 11 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to horizontal installation;

[0037] Figure 12 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to horizontal installation;

[0038] Figure 13 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to horizontal installation;

[0039] Figure 14 for Figure 13 Schematic diagram of a local structure in the middle;

[0040] Figure 15 This is a schematic diagram of the photovoltaic guide rail hook installation structure of this utility model applied to horizontal installation;

[0041] Figure 16 for Figure 15 Schematic diagram of a local structure in the middle;

[0042] Reference numerals: hook assembly 1, hook base 11, base plate 111, side plate 112, vertical hole 113, mounting hole 114, first hook 12, first fixed edge 121, connecting edge 122, second fixed edge 123, second hook 13, joint 131, support 132, threaded hole 133, support plate 2, limiting part 21, limiting groove 22, through hole 23, guide rail 3, elongated groove 31, limiting protrusion 32, fixing groove 33, inclined section 34, vertical section 35, mounting groove 36, pressure plate 4, pressing part 41, bridging part 42, fitting groove 43, inclined surface 44, elongated hole 45, fastener 46, pressure block assembly 5, lower pressure block 51, upper pressure block 52, pressure block bolt 53, elastic support leg 54, buckle 55.

Detailed Implementation Methods

[0043] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0044] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0045] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "lateral," and "longitudinal," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0049] Referring to existing technologies, in existing photovoltaic power stations installed on sloping roofs, photovoltaic modules are installed on guide rails, and hook assemblies are provided between the guide rails and the sloping roof. Since the installation structure of the hook assemblies is fixed, when installed vertically, the length direction of the photovoltaic guide rail is perpendicular to the slope direction of the sloping roof, and when installed horizontally, the length direction of the photovoltaic guide rail is consistent with the slope direction of the sloping roof. Since photovoltaic modules are mostly installed vertically, the hook assemblies are also designed for vertical installation, which makes it difficult to adapt to horizontal installation. Therefore, the conventional photovoltaic guide rail hook installation structure cannot be compatible with both horizontal and vertical arrangements of photovoltaic modules.

[0050] To accommodate both horizontal and vertical mounting of photovoltaic modules, refer to Figures 1 to 16 As shown, this embodiment provides a photovoltaic rail hook-type installation structure, installed on a sloping roof as part of a rooftop photovoltaic power station. It includes a hook assembly 1, a support plate 2, a guide rail 3, a pressure plate 4, and fasteners 46. The hook assembly 1 has a support portion 132 at its top, the support plate 2 is disposed on the support portion 132, the guide rail 3 and the pressure plate 4 are disposed on the support plate 2, the pressure plate 4 has a pressing portion 41, the pressing portion 41 presses against the guide rail 3, and the fasteners 46 connect the pressure plate 4, the support plate 2, and the support portion 132. The fasteners, such as bolts, can be loosened and tightened. The support plate 2 can rotate relative to the fasteners 46 when the fasteners 46 are loosened, and the support plate 2 has a first installation angle and a second installation angle when the fasteners 46 are tightened. The support plate 2 corresponds to the vertical installation state of the photovoltaic module at the first installation angle, and the support plate corresponds to the horizontal installation state of the photovoltaic module at the second installation angle. Here, the first installation angle can be considered as the width direction of the tray being consistent with the slope direction of the sloping roof, and the second installation angle can be considered as the width direction of the tray being perpendicular to the slope direction of the sloping roof.

[0051] like Figures 1 to 6 As shown, when the photovoltaic modules are installed vertically, the length direction of the photovoltaic modules is aligned with the longitudinal direction of the photovoltaic module array (i.e., the front-to-back direction of the building), and the length direction of the guide rail is perpendicular to the tilt direction of the sloping roof. Additionally, as... Figures 11 to 16 As shown, when the photovoltaic modules are installed horizontally, the mounting structure of the hook assembly remains unchanged. The support plate can rotate 90 degrees around the fastener as the axis, which is equivalent to the support plate and the guide rail and pressure plate installed on it rotating 90 degrees together around the fastener as the axis. In this way, the position and installation relationship between the guide rail and the support plate do not change. However, compared with the vertical installation, the length direction of the guide rail is now consistent with the inclination direction of the sloping roof. Therefore, the photovoltaic guide rail hook installation structure in this embodiment can be compatible with both horizontal and vertical arrangements of photovoltaic modules.

[0052] In some embodiments, a guide rail limiting structure is provided between the tray 2 and the bottom of the guide rail to further strengthen the connection between the guide rail and the tray. The guide rail limiting structure includes a limiting part 21 protruding from the tray and arranged in an L-shape. A limiting groove 22 is formed between the limiting part 21 and the tray body. The bottom of the guide rail is provided with an elongated groove 31 extending along the length of the guide rail. A limiting protrusion 32 is provided on one side of the width of the opening of the elongated groove. The limiting protrusion 32 cooperates with the limiting groove 22. The cooperation between the limiting protrusion and the limiting groove is mainly to restrict the vertical movement of the guide rail. Because the pressing part presses against the other side of the guide rail opposite to the limiting protrusion, if only the side of the guide rail pressed by the pressing part is subjected to force, it will cause uneven force distribution, and the other side is prone to separation from the tray. The cooperation between the limiting protrusion and the limiting groove can avoid this situation. Of course, it is understood that the guide rail limiting structure can also be modified, or the guide rail limiting structure can be omitted.

[0053] In some embodiments, a fixing groove 33 is provided on one side of the bottom of the guide rail 3, and the fixing groove 33 and the limiting protrusion 32 are respectively provided on both sides of the bottom width of the guide rail. The pressing part 41 cooperates with the fixing groove 33 to press and fix the guide rail 3. Specifically, the fixing groove 33 is recessed towards the middle of the width, and the fixing groove 33 includes a bottom wall and an outer wall opposite to it in the width direction. The outer wall includes an inclined section 34 extending obliquely upward from the bottom and outward and a vertical section 35 connected to the upper end of the inclined section. A bridging part 42 is provided between the pressing part 41 and the pressure plate body, and an interlocking groove 43 is provided between the bridging part 42 and the pressing part 41. An inclined surface 44 is provided on one side of the opening of the interlocking groove. The inclined section 34 cooperates with the inclined surface 44, and the vertical section 35 extends into the inner side of the interlocking groove, and the bottom surface of the vertical section is pressed against the bottom wall of the fixing groove. After the fasteners are tightened, the pressure plate is subjected to a downward force, which mainly relies on the vertical section to exert a pressing force on the bottom surface of the fixing groove. The inclined section and the inclined surface cooperate to prevent the pressure plate and the guide rail from being horizontally misaligned along the width of the guide rail.

[0054] Specifically, the support plate 2 has a through hole 23, which is clearance-fitted with the fastener 46. Therefore, when the fastener is not fixed, the support plate 2 can rotate relative to the fastener 46. The pressure plate 4 has an elongated hole 45, which is clearance-fitted with the fastener 46. The length direction of the elongated hole is perpendicular to the length direction of the guide rail. Therefore, when the fastener is not fixed, the pressure plate can move relative to the fastener, allowing the pressing part to extend into the fixing groove to form a fit. The fastener 46 is a hexagon socket head cap screw. The support part 132 has a threaded hole 133. The hexagon socket head cap screw passes through the through hole 23 and the elongated hole 45 and connects to the threaded hole. Therefore, when the hexagon socket head cap screw is tightened, it exerts a downward force on the pressure plate, which in turn exerts a downward force on the guide rail, thereby pressing the guide rail tightly.

[0055] Specifically, the top of the guide rail 3 is provided with a T-shaped mounting groove 36, which is connected to the pressure block assembly 5. The pressure block assembly 5 includes a lower pressure block 51, an upper pressure block 52, and a pressure block bolt 53. The bottom of the lower pressure block is provided with a buckle 55, which cooperates with the mounting groove 36. The top of the upper pressure block is provided with pressing flanges on opposite sides (taking the middle pressure block as an example, the side pressure block can be provided with a pressing flange on one side). Specifically, the lower pressure block is provided with elastic support legs 54 on opposite sides, the buckle 55 is located at the bottom of the elastic support legs, the top of the lower pressure block is provided with a threaded hole, and the pressure block bolt can be an internal hex bolt, which passes through the fixing hole on the upper pressure block from top to bottom and connects to the threaded hole on the lower pressure block. When installing photovoltaic modules: Align the elastic support leg on one side of the lower pressure block of the pressure block assembly with one side of the mounting groove on the upper side of the guide rail, and press down to insert both elastic support legs into the mounting groove on the upper side of the guide rail. The lower surface of the photovoltaic module is in contact with the upper surface of the guide rail, and the pressing flange of the upper pressure block presses on the upper surface of the photovoltaic module. When tightening the pressure block bolts, lift the lower pressure block up, and the buckle engages with the inner protruding edges on both sides of the mounting groove to realize the installation of the photovoltaic module.

[0056] Referring to existing technology, the hook assembly 1 includes a hook base 11, a first hook 12, and a second hook 13. The hook base 11 includes a base plate 111 and a side plate 112. The first hook has a Z-shaped structure, including a first fixed edge 121, a second fixed edge 123, and a connecting edge 122 connecting the first and second fixed edges. The second hook 13 has an L-shaped structure, including a vertically connected support portion 132 and a connecting portion 131. The first fixed edge 121 and the side plate 113 are stacked and fixed with bolts, and the connecting portion 131 is stacked and fixed with the second fixed edge 123. Furthermore, anti-slip textures can be provided between the first fixed edge and the side plate, and between the connecting portion and the second fixed edge. A row of vertical holes 113 is provided on the side plate, and grooves are provided on the opposite side walls of the vertical holes. A threaded hole is provided on the first fixed edge 121, and the threaded hole is connected to the vertical hole with a bolt. The installation height of the hook assembly can be adjusted through the vertical hole, and positioning is achieved by the grooves at different heights. Here, there can be three vertical holes in a row, allowing the installation position of the hook assembly to be adjusted by installing it into different holes. During installation, the anti-slip texture of the side plate mates with the anti-slip texture of the first fixed edge to prevent the hook assembly from sliding downwards and to prevent the hook assembly from rotating relative to the hook base when fastened. Similarly, the second fixed edge and the joint also use a bolt-fixed and anti-slip textured structure to fix the assembly and prevent rotation.

[0057] The base plate 111 of the hook base has mounting holes 114. When installing the hook base, the assembled hook base and hook assembly are installed on the wooden beam of the roof using self-tapping screws through the mounting holes.

[0058] Preferably, the guide rail 3, pressure plate 4, and support plate 2 can be made of stainless steel or aluminum alloy profiles. The guide rail has a long groove at the bottom and a mounting groove at the top, with a hollow cavity running through the length direction to save materials and reduce weight. It can be produced in large quantities by extrusion molding, which not only has a lower cost but also prevents rusting during long-term use.

[0059] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A photovoltaic rail hook-type installation structure, characterized in that, The device includes a hook assembly, a tray, a guide rail, a pressure plate, and fasteners. The hook assembly has a support portion on its top, and the tray is supported on the support portion. The guide rail and pressure plate are located on the tray, and the pressure plate has a pressing portion that presses against the guide rail. The fasteners connect the pressure plate, the tray, and the support portion. The tray can rotate relative to the fasteners when the fasteners are loosened. The tray has a first installation angle and a second installation angle when the fasteners are tightened. The tray corresponds to the vertical installation state of the photovoltaic module at the first installation angle, and the tray corresponds to the horizontal installation state of the photovoltaic module at the second installation angle.

2. The photovoltaic rail hook-type installation structure according to claim 1, characterized in that, A guide rail limiting structure is provided between the tray and the bottom of the guide rail.

3. The photovoltaic rail hook-type installation structure according to claim 2, characterized in that, The guide rail limiting structure includes a limiting part that protrudes from the tray and is L-shaped. A limiting groove is formed between the limiting part and the tray body. The bottom of the guide rail is provided with an elongated groove extending along the length of the guide rail. A limiting protrusion is provided on one side of the width of the opening of the elongated groove. The limiting protrusion cooperates with the limiting groove.

4. The photovoltaic rail hook-type installation structure according to claim 1, characterized in that, The pallet is provided with a through hole, which is clearance-fitted with a fastener; and / or, the pressure plate is provided with an elongated hole, which is clearance-fitted with a fastener.

5. A photovoltaic rail hook-type installation structure according to claim 4, characterized in that, The fastener is a hexagon socket head cap screw, and the support part is provided with a threaded hole. The hexagon socket head cap screw passes through the through hole and the elongated hole and is connected to the threaded hole.

6. The photovoltaic rail hook-type installation structure according to claim 1, characterized in that, The bottom side of the guide rail is provided with a fixing groove, and the pressing part cooperates with the fixing groove to press and fix the guide rail.

7. A photovoltaic rail hook-type installation structure according to claim 6, characterized in that, The fixing groove includes a bottom wall and an outer wall. The outer wall includes an inclined section extending obliquely upward from the bottom and a vertical section connected to the upper end of the inclined section. A bridging part is provided between the pressing part and the pressure plate body. A fitting groove is provided between the bridging part and the pressing part. An inclined surface is provided on one side of the opening of the fitting groove. The inclined section cooperates with the inclined surface. The vertical section extends into the inner side of the fitting groove.

8. A photovoltaic rail hook-type installation structure according to claim 1, characterized in that, The top of the guide rail is provided with a T-shaped mounting groove, which is connected to the pressure block assembly. The pressure block assembly includes a lower pressure block, an upper pressure block, and a pressure block bolt. The bottom of the lower pressure block is provided with a buckle, which cooperates with the mounting groove.

9. A photovoltaic rail hook-type installation structure according to claim 1, characterized in that, The hook assembly includes a hook base, a first hook, and a second hook. The hook base includes a base plate and a side plate. The first hook has a Z-shaped structure, including a first fixed side, a second fixed side, and a connecting side that connects the first fixed side and the second fixed side. The second hook has an L-shaped structure, including a vertically connected support part and a connecting part. The first fixed side and the side plate are stacked and fixed with bolts. The connecting part and the second fixed side are stacked and fixed with bolts.

10. A rooftop photovoltaic power station, characterized in that, The photovoltaic rail hook-type installation structure includes any one of claims 1 to 9.

Images