Photovoltaic support

By designing a double-beam structure for the photovoltaic support system and precisely adjusting the installation angle of the photovoltaic modules, the problem of non-optimal tilt angle of photovoltaic modules on sloping roofs was solved, improving power generation efficiency and stability and reducing reflection effects.

CN223693859UActive Publication Date: 2025-12-19JIANGSU TIANCONG INNOVATION ENERGY ENG CO LTD
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Patent Information

Application Number
CN202422810664.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-12-19
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

The existing sloping roof photovoltaic brackets are laid along the slope, resulting in non-optimal tilt angles for the photovoltaic modules, leading to significant power generation losses. Furthermore, the reflective effect of the modules on the north slope affects the neighbors.

Method used

A photovoltaic support structure is designed, comprising a first-layer beam support structure and a second-layer beam support structure. The mounting surface is determined by a leveling beam, and the tilt angle of the fixed surface is adjusted by an adjustment frame to precisely adjust the mounting angle of the photovoltaic modules.

Benefits of technology

It improves the power generation efficiency of photovoltaic modules, reduces glare, enhances the stability and load-bearing capacity of photovoltaic brackets, and increases installed capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a photovoltaic support. The photovoltaic support comprises a first layer beam support structure and a second layer beam support structure. The first-layer beam support structure is used for being installed on the sloping roof and comprises a leveling beam, and the leveling beam is used for being laid on the sloping roof and used for determining an installation face. The second-layer beam support structure is mounted on the mounting surface, the second-layer beam support structure comprises a bottom beam arranged above the leveling beam and an adjusting frame arranged between the leveling beam and the bottom beam, the bottom beam is used for determining a fixing surface for mounting the photovoltaic module, and the adjusting frame is used for adjusting the inclination angle of the fixing surface. By arranging the leveling beam for leveling, it can be guaranteed that the second-layer beam support structure is stably installed on the flush installation face, the installation angle of the adjusting frame is confirmed, and the inclination angle of the bottom beam on the adjusting frame, namely the inclination angle of the fixing face, is adjusted through the adjusting frame; therefore, accurate adjustment of the installation angle of the photovoltaic module installed on the photovoltaic support is realized.
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Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment installation technical field especially relates to photovoltaic support. BACKGROUND

[0002] General photovoltaic module is installed on the roof of building through support, and the difference of roof structure leads to the difference of corresponding photovoltaic support structure. The existing inclined roof photovoltaic support is laid along the slope, but because the inclination angle of inclined roof is generally 25-30 degrees, the photovoltaic module laid along the slope is not the best inclination angle, and the power generation capacity loss is relatively large, and because the inclination angle of north slope component is relatively large, the reflection effect of photovoltaic panel is easily caused, and the reflection of north slope photovoltaic panel irradiates to the rear leading home, which causes the influence on neighbors. SUMMARY

[0003] Therefore, it is necessary to provide a photovoltaic support aiming at the technical problem that the existing inclined roof photovoltaic support is laid along the slope, but because the inclination angle of inclined roof is generally 25-30 degrees, the photovoltaic module laid along the slope is not the best inclination angle, and the power generation capacity loss is relatively large, and because the inclination angle of north slope component is relatively large, the reflection effect of photovoltaic panel is easily caused, and the reflection of north slope photovoltaic panel irradiates to the rear leading home, which causes the influence on neighbors.

[0004] A photovoltaic support comprises:

[0005] A first layer beam support structure comprises a leveling beam, which is used for laying on the inclined roof to determine an installation surface;

[0006] A second layer beam support structure is installed on the installation surface, and comprises a bottom beam arranged above the leveling beam and an adjusting frame arranged between the leveling beam and the bottom beam, wherein the bottom beam is used for determining a fixed surface for installing photovoltaic components, and the adjusting frame is used for adjusting the inclination angle of the fixed surface.

[0007] In one of the embodiments, the adjusting frame comprises a plurality of truss web members arranged at intervals, both ends of each truss web member are connected with the leveling beam and the bottom beam respectively, and the length and / or inclination angle of each truss web member are adjustable to adjust the inclination angle of the fixed surface.

[0008] In one of the embodiments, any two adjacent truss web members are arranged at an angle to form a triangular structure with the bottom beam part or the leveling beam part.

[0009] In one of the embodiments, each truss web member is arranged in sequence along the inclination direction of the inclined roof, and the spacing between the bottom beam and the leveling beam at least partially gradually expands in the direction from the high end of the bottom beam to the low end of the bottom beam.

[0010] In one of the embodiments, the first layer beam support structure further comprises a plurality of spaced-apart roof connectors, one end of each of the roof connectors is connected to the sloped roof, and the other end of each of the roof connectors is connected to the screed beam to support the screed beam.

[0011] In one of the embodiments, the photovoltaic support further comprises a support column, one end of the support column is connected to the support surface of the sloped roof, and the other end of the support column is connected to the bottom beam to support the bottom beam.

[0012] In one of the embodiments, the first layer beam support structure further comprises a first column and a second column, one end of each of the first column and the second column is connected to the support surface on two sides of the sloped roof, and the other end of each of the first column and the second column is connected to the screed beam to support the screed beam.

[0013] In one of the embodiments, the first layer beam support structure further comprises a plurality of spaced-apart roof supports, one end of each of the roof supports is connected to the screed beam, and the other end of each of the roof supports is used to abut the sloped roof to support the screed beam.

[0014] In one of the embodiments, the photovoltaic support further comprises a pull rod, the pull rod is located on the other slope surface of the sloped roof, one end of the pull rod is connected to the end of the screed beam away from the second column, and the other end of the pull rod is connected to the first column, and the pull rod is used to determine the fixing surface of the other photovoltaic module.

[0015] In one of the embodiments, the screed beam comprises a first segment and a second segment connected to each other, the first segment is used to be laid on the sloped roof, and the second segment is used to span on the boss of the sloped roof.

[0016] Advantages:

[0017] The photovoltaic support provided by the embodiment of the utility model, including first layer beam support structure and second layer beam support structure, first layer beam support structure is used to install on inclined roof, first layer beam support structure includes leveling beam, leveling beam is used to lay on inclined roof, to be used for determining an installation surface, second layer beam support structure is installed on installation surface, second layer beam support structure includes setting bottom beam in leveling beam top, setting adjustment frame between leveling beam and bottom beam, bottom beam is used to determine a fixed surface of installing photovoltaic module, adjustment frame is used to adjust the inclination angle of fixed surface, in the application, through setting leveling beam on inclined roof, determine installation surface, to be used for leveling, so as to guarantee that second layer beam support structure is stably installed on flush installation surface, through setting the inclination angle of installation surface, can confirm the installation angle of adjustment frame, and through adjustment frame, adjust the inclination angle of bottom beam on adjustment frame, namely the inclination angle of fixed surface, so as to realize the accurate adjustment of the installation angle of photovoltaic module installed on photovoltaic support, namely improve the adjustment range and convenience of photovoltaic module inclination angle, further improve the power generation efficiency of photovoltaic module, reduce reflection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 1 .

[0019] Figure 2 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 2 .

[0020] Figure 3 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 3 .

[0021] Figure 4 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 4 .

[0022] Figure 5 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 5 .

[0023] Figure 6 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 6 .

[0024] Figure 7 The schematic diagram of the photovoltaic support provided by the embodiment of the utility model Figure 7 .

[0025] REFERENCE SIGNS:

[0026] 100 - first floor beam support structure; 110 - screed beam; 111 - first section; 112 - second section; 120 - roof support; 200 - second floor beam support structure; 210 - base beam; 220 - adjustment bracket; 221 - truss web member; 230 - reinforcing bar; 310 - tie rod; 320 - roof connector; 330 - support column; 340 - second upright column; 350 - gusset connector; 360 - connecting rod; 370 - auxiliary rod; 380 - first upright column; 390 - support rod; 400 - pitched roof; 410 - north slope roof; 420 - south slope roof; 430 - house platform; 440 - wall surface; 450 - ridge; 460 - obstacle; 470 - accessory structure; 500 - photovoltaic module. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details set forth herein without departing from the scope of the present application. It is therefore contemplated that the present application is not limited to the specific embodiments disclosed in the following description.

[0028] In the description of the present application, it should be understood that 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" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium.Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature.The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0032] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element.When an element is considered "connected" to another element, it can be directly connected to another element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0033] Referring to Figure 1 And Figure 2 , Figure 1 The utility model provides a photovoltaic support's schematic diagram for an embodiment Figure 1 . Figure 2 The utility model provides a photovoltaic support's schematic diagram for an embodiment Figure 2 The utility model provides a photovoltaic support, including first layer beam support structure 100 and second layer beam support structure 200;First layer beam support structure 100 is used to install on inclined roof 400, and first layer beam support structure 100 includes leveling beam 110, and leveling beam 110 is used to lay on inclined roof 400 to be used to determine an installation surface;Second layer beam support structure 200 is installed on the installation surface, and second layer beam support structure 200 includes the bottom beam 210 being arranged above leveling beam 110, the adjusting frame 220 being arranged between leveling beam 110 and bottom beam 210, and bottom beam 210 is used to determine a fixed surface of installing photovoltaic module 500, and adjusting frame 220 is used to adjust the inclination angle of fixed surface.

[0034] Specifically, in the present application, the installation surface is determined by the leveling beam 110 arranged on the inclined roof 400 for leveling, so that the second layer beam support structure 200 can be stably installed on the leveled installation surface. By setting the inclination angle of the installation surface, the installation angle of the adjusting frame 220 can be confirmed, and by adjusting the inclination angle of the bottom beam 210 on the adjusting frame 220 through the adjusting frame 220, i.e. the inclination angle of the fixed surface, the installation angle of the photovoltaic module 500 installed on the photovoltaic support can be accurately adjusted, i.e. the adjustment range and convenience of the inclination angle of the photovoltaic module 500 are improved, thereby improving the power generation efficiency of the photovoltaic module 500 and reducing the reflection. The leveling beam 110 is the first adjustment layer of the photovoltaic inclination angle, and the bottom beam 210 is the second adjustment layer of the photovoltaic inclination angle. Compared with the prior art, the adjustment of the photovoltaic inclination angle is more accurate, and the stability of the photovoltaic support is effectively ensured.

[0035] When the load acts on the photovoltaic support, the force on the photovoltaic support is transmitted to the inclined roof 400 through the double-layer beam structure, and the pressure-bearing stress of the upper and lower beams is improved, thereby improving the overall stress intensity of the entire photovoltaic support, so that the load capacity of the photovoltaic support is stronger and the stress is more stable.

[0036] Referring to Figure 1 and Figure 2 In one embodiment, the adjusting frame 220 includes a plurality of spaced truss web members 221, the two ends of each truss web member 221 are connected with the leveling beam 110 and the bottom beam 210 respectively, and the length and / or inclination angle of each truss web member 221 is adjustable to adjust the inclination angle of the fixed surface.

[0037] Specifically, in the present application, the leveling is performed by the leveling beam 110 laid on the inclined roof 400, so that the positions of the lower ends of the truss web members 221 are on the same plane, and thus by controlling the length and installation angle of the truss web members 221, the inclination angle of the bottom beam 210 can be accurately set, thereby improving the angle adjustment accuracy of the photovoltaic module 500 installed on the bottom beam 210.

[0038] The length of the truss web member 221 can be adjusted by extending or retracting the truss web member 221, or by replacing truss web members 221 of different lengths. The inclination angle of the truss web member 221 can be adjusted by changing the connection position between the truss web member 221 and the bottom beam 210 or the leveling beam 110.

[0039] Referring to Figure 2In one of the embodiments, any two adjacent truss web members 221 are arranged at an angle, so that any two adjacent truss web members 221 and the bottom beam 210 or the leveling beam 110 form a triangular structure, thereby improving the stability of the photovoltaic support.

[0040] Referring to Figure 2 and Figure 3 In one of the embodiments, the truss web members 221 are arranged along the inclined direction of the inclined roof 400, and the distance between the bottom beam 210 and the leveling beam 110 gradually expands from the high end of the bottom beam 210 to the low end of the bottom beam 210, thereby lifting the low end of the bottom beam 210 to reduce the inclination angle of the bottom beam 210 relative to the horizontal plane, thereby reducing the reflection of the photovoltaic module 500 installed on the bottom beam 210 and reducing interference.

[0041] It should be noted that the low end of the bottom beam 210 is the end of the bottom beam 210 on the lower side, and the high end of the bottom beam 210 is the end of the bottom beam 210 on the upper side.

[0042] Referring to Figure 3 and Figure 3 In one of the embodiments, the first layer beam support structure 100 further comprises a plurality of spaced-apart roof connecting members 320, one end of the roof connecting member 320 being connected to the inclined roof 400, and the other end of the roof connecting member 320 being connected to the leveling beam 110 to support the leveling beam 110.

[0043] Specifically, by damaging the inclined roof 400, the roof connecting member 320 is connected to the inclined roof 400, thereby stably fixing the leveling beam 110 to the inclined roof 400 and improving the stability of the photovoltaic support.

[0044] Referring to Figure 3 In one of the embodiments, the photovoltaic support further comprises an auxiliary rod 370, one end of the auxiliary rod 370 being connected to the truss web member 221, and the other end of the auxiliary rod 370 being connected to the bottom beam 210, thereby improving the stability of the support of the bottom beam 210.

[0045] Referring to Figure 2 and Figure 1 , Figure 4 A schematic view of a photovoltaic support according to an embodiment of the present application Figure 5 In one of the embodiments, the photovoltaic support further comprises a support column 330, one end of the support column 330 being connected to the support surface of the inclined roof 400, and the other end of the support column 330 being connected to the bottom beam 210 to support the bottom beam 210.

[0046] Specifically, when the inclined roof 400 has an obstacle 460 or an accessory structure 470 such that the leveling beam 110 cannot be arranged along the length direction, the leveling beam 110 can be arranged in a small section on the inclined roof 400, and then connected with the support surface and the bottom beam 210 through the support column 330, so as to ensure the installation capacity of the bottom beam 210 and the stability of the bottom beam 210. The support surface in the embodiment can be one or more of the house platform 430, the ground, the wall surface or the accessory structure 470 of the inclined roof 400.

[0047] Referring to Figure 4 In one embodiment, the photovoltaic support further comprises a connecting rod 360, one end of the connecting rod 360 is connected to the support column 330, and the other end of the connecting rod 360 is connected to the bottom beam 210, so as to improve the stability of the bottom beam 210.

[0048] Referring to Figure 4 In one embodiment, the photovoltaic support further comprises a reinforcing rod 230, the reinforcing rod 230 is connected between adjacent truss web members 221, so as to improve the stability of the photovoltaic support.

[0049] Referring to Figure 5 、 Figure 5 and Figure 1 , Figure 4 a schematic view of a photovoltaic support provided by one embodiment of the present application Figure 5 . Figure 6 a schematic view of a photovoltaic support provided by one embodiment of the present application Figure 6 In one embodiment, the first layer beam support structure 100 further comprises a first vertical column 380 and a second vertical column 340, one end of the first vertical column 380 and the second vertical column 340 is respectively connected to the support surface on both sides of the inclined roof 400, and the other end of the first vertical column 380 and the second vertical column 340 is connected to the leveling beam 110 to support the leveling beam 110.

[0050] Specifically, the first vertical column 380 and the second vertical column 340 are connected to the support surface on both sides of the inclined roof 400, so that the leveling beam 110 can be stably fixed on the inclined roof 400 without damaging the inclined roof 400, and the reliability of the photovoltaic support is improved. The support surface in the embodiment can be the house platform 430, the ground or the wall surface 440. It should be noted that the first vertical column 380 and the second vertical column 340 are anchored to the support surface through expansion bolts.

[0051] Referring to Figure 6 、 Figure 5 and Figure 1In one embodiment, the first layer beam support structure 100 further comprises a plurality of spaced roof supports 120, one end of each roof support 120 is connected to the screed beam 110, and the other end of each roof support 120 is used to abut the inclined roof 400 to support the screed beam 110.

[0052] Specifically, without damaging the inclined roof 400, by arranging a plurality of roof supports 120 abutting the inclined roof 400 on the side of the screed beam 110 facing the inclined roof 400, the strength of the screed beam 110 can be improved, and the unevenness of the inclined roof 400 that causes uneven stress on the screed beam 110 and affects the strength of the screed beam 110 can be reduced, thereby improving the reliability of the photovoltaic support.

[0053] In another embodiment, when the inclined roof 400 is relatively flat, the roof support 120 can not be arranged, and the screed beam 110 is directly laid on the inclined roof 400 and abuts the inclined roof 400.

[0054] Referring to Figure 4 , Figure 5 The schematic diagram of the photovoltaic support provided by one embodiment of the present application Figure 6 In yet another embodiment, when the strength of the screed beam 110 is large enough, the roof support 120 can not be arranged, and the screed beam 110 is spaced apart from the inclined roof 400.

[0055] Referring to Figure 7 In one embodiment, the height of each roof support 120 gradually increases in the direction from the low end of the bottom beam 210 to the high end of the bottom beam 210, so as to lift the high end of the screed beam 110, thereby being able to span the ridge 450 on the top of the inclined roof 400, reducing the interference of the ridge 450 with the photovoltaic module 500 on the bottom beam 210, and increasing the installed capacity. Compared with the prior art, the double-layer beam support structure has stronger compatibility with various obstacles on the roof (such as ridges, tiger windows, etc.), and under the condition of meeting the stability of the support structure, the photovoltaic installed capacity is increased, and the economic benefit of the photovoltaic system is improved.

[0056] It should be noted that the low end of the screed beam 110 is the end of the bottom beam 210 located on the lower side, and the high end of the screed beam 110 is the end of the bottom beam 210 located on the upper side.

[0057] Referring to Figure 7 , Figure 7 , Figure 1 and Figure 4In one of the embodiments, the photovoltaic support further comprises a pull rod 310, which is arranged on the other slope of the sloping roof 400, one end of the pull rod 310 is connected to the end of the leveling beam 110 away from the second stand 340, and the other end of the pull rod 310 is connected to the first stand 380, and the pull rod 310 is used to determine the other fixing surface for mounting the photovoltaic module 500.

[0058] Specifically, the sloping roof 400 has a south slope roof 420 and a north slope roof 410, one of the leveling beam 110 and the pull rod 310 is arranged on the north slope roof 410, and the other is arranged on the south slope roof 420, so as to determine a fixing surface on each of the south slope roof 420 and the north slope roof 410 for mounting the photovoltaic module 500, thereby increasing the installed capacity and improving the utilization rate of the sloping roof 400. Wherein, one end of the pull rod 310 is connected to the first stand 380, and the other end is connected to the leveling beam 110, so that the stability of the pull rod 310 can be ensured, the damage to the sloping roof 400 can be avoided, and the installation structure can be reduced to save the cost.

[0059] Further, the photovoltaic module 500 further comprises a support rod 390, one end of the support rod 390 is connected to the first stand 380, and the other end of the support rod 390 is connected to the pull rod 310, so as to improve the stability of the pull rod 310.

[0060] Referring to Figure 5 , Figure 6 The schematic diagram of the photovoltaic support provided by one of the embodiments of the present application Figures 1-6 In one of the embodiments, the leveling beam 110 comprises a first section 111 and a second section 112 connected to each other, the first section 111 is arranged on the sloping roof 400, and the second section 112 is arranged on the boss of the sloping roof 400.

[0061] Specifically, when the sloping roof 400 has a boss, in order to avoid the boss, the leveling beam 110 can be arranged in a broken manner, that is, comprising a first section 111 and a second section 112 connected to each other, the first section 111 is arranged on the sloping roof 400, one end of the first section 111 away from the second section 112 is connected to the pull rod 310, and the other end of the second section 112 away from the first section 111 is connected to the second stand 340, so as to cross the boss, and the first section 111 and the second section 112 are connected to the truss web member 221 to support the bottom beam 210, thereby increasing the installed capacity while avoiding the boss. Wherein, the boss in the present embodiment can be an obstacle 460 on one side of the sloping roof 400, or an auxiliary structure 470.

[0062] It should be noted that when the boss is an auxiliary structure 470 such as a glass shed, the leveling beam 110 is arranged in a broken manner, that is, the second section 112 is arranged above the glass shed to avoid damaging the glass shed and other structures.

[0063] Referring to ​ , ​ , ​ and ​ In one embodiment, the bottom beam 210 is connected to the leveling beam 110 away from one end of the second upright column 340, so that the bottom beam 210, the leveling beam 110 and the second upright column 340 can form a triangular structure, thereby improving the stability of the photovoltaic support.

[0064] Referring to ​ In one embodiment, the photovoltaic support further comprises a plurality of triangular connectors 350, which are installed on the bottom beam 210 or the leveling beam 110 and connected to the same side of two adjacent truss web members 221. In other embodiments, the truss web members 221 can be directly connected to the bottom beam 210 and the leveling beam 110. It should be noted that in other connection structures in the present application, the connection relationship can be achieved by the triangular connectors 350.

[0065] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0066] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of variations and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A photovoltaic mount, characterized by, The photovoltaic support comprises: a first layer beam support structure, which comprises a leveling beam used for laying on a sloping roof to determine a mounting surface; a second layer beam support structure mounted on the mounting surface, which comprises a bottom beam arranged above the leveling beam and an adjusting frame arranged between the leveling beam and the bottom beam, the bottom beam being used to determine a fixed surface for mounting photovoltaic modules, and the adjusting frame being used to adjust the inclination angle of the fixed surface; the distance between the bottom beam and the leveling beam at least partially expands in the direction from the high end of the bottom beam to the low end of the bottom beam.

2. The photovoltaic mount of claim 1, wherein, The adjusting frame comprises a plurality of spaced truss web members, both ends of each truss web member being connected with the leveling beam and the bottom beam respectively, and the length and / or inclination angle of each truss web member being adjustable to adjust the inclination angle of the fixed surface.

3. The photovoltaic mount of claim 2, wherein, Any two adjacent truss web members are arranged at an included angle to form a triangular structure with the bottom beam or the leveling beam.

4. The photovoltaic mount of claim 2, wherein, Each truss web member is arranged in sequence along the inclination direction of the sloping roof.

5. The photovoltaic mount of any of claims 1-4, wherein, The first layer beam support structure further comprises a plurality of spaced roof connecting members, one end of each roof connecting member being used to connect with the sloping roof, and the other end of each roof connecting member being connected with the leveling beam to support the leveling beam.

6. The photovoltaic mount of claim 5, wherein, The photovoltaic support further comprises a support column, one end of the support column being used to connect with a support surface of the sloping roof, and the other end of the support column being used to connect with the bottom beam to support the bottom beam.

7. The photovoltaic mount of any of claims 1-4, wherein, The first layer beam support structure further comprises a first upright column and a second upright column, one end of each of the first upright column and the second upright column being used to connect with a support surface on both sides of the sloping roof, and the other end of each of the first upright column and the second upright column being connected with the leveling beam to support the leveling beam.

8. The photovoltaic mount of claim 7, wherein, The first layer beam support structure further comprises a plurality of spaced roof support members, one end of each roof support member being connected with the leveling beam, and the other end of each roof support member being used to abut against the sloping roof to support the leveling beam.

9. The photovoltaic mount of claim 7, wherein, The photovoltaic support further comprises a pull rod, one end of the pull rod being connected with the leveling beam away from the other end of the second upright column, and the other end of the pull rod being connected with the first upright column, the pull rod being used to determine a fixed surface for mounting photovoltaic modules.

10. The photovoltaic mount of claim 7, wherein, The leveling beam comprises a first segment and a second segment connected with each other, the first segment being used to lay on the sloping roof, and the second segment being used to span on a boss of the sloping roof.