Double-layer photovoltaic greenhouse aluminum alloy frame

Abstract

This application relates to the field of photovoltaic greenhouse technology, specifically a double-layer aluminum alloy frame for a photovoltaic greenhouse. The frame includes an arc-shaped support and mounting frames connecting the two arc-shaped supports. The mounting frames are connected to the arc-shaped supports at both ends via detachable connectors. The arc-shaped supports are connected to the ground at both ends via bases. Several sets of parallel arc-shaped auxiliary frames are also provided between the arc-shaped supports, each connected between adjacent sets of mounting frames. The arc-shaped support includes an upper frame and a lower frame, connected by a connecting plate. The mounting frames include photovoltaic mounting plates and functional layer mounting plates, connected by a support plate. This application, through its double-layer structural design and detachable connection method, allows the photovoltaic greenhouse to achieve rapid assembly, length self-adaptation, and independent optimization of the two functional layers.

Description

Technical Field

[0001] This application relates to the field of photovoltaic greenhouse technology, and in particular to a double-layer aluminum alloy frame for a photovoltaic greenhouse. Background Technology

[0002] With the deep integration of modern agriculture and the new energy industry, photovoltaic greenhouses have become an important carrier for realizing the "agricultural-photovoltaic complementarity" model. Traditional photovoltaic greenhouses typically use a single-layer aluminum alloy frame structure, with photovoltaic modules directly covering the roof. While this achieves power generation, it suffers from the following significant problems:

[0003] 1. Limited Functionality: The single-layer aluminum alloy structure cannot simultaneously meet the differentiated needs of photovoltaic power generation and crop growth. The photovoltaic panels block some sunlight, affecting the photosynthesis of the crops below, while the insulation, shading, or environmental control equipment required by the crops lacks independent installation space.

[0004] 2. Structural rigidity limitations: Traditional aluminum alloy frames mostly use fixed-length trusses or welded frames, requiring customized production for installation, making it difficult to adapt to different plot sizes. Transportation and on-site assembly costs are high, and the length of the greenhouse cannot be flexibly expanded or reduced according to planting needs.

[0005] 3. Difficult to maintain: When photovoltaic panels are installed on the same plane as agricultural equipment (such as insulation layers, sprinklers, and supplemental lighting), they are prone to mutual interference during equipment maintenance or replacement, reducing operation and maintenance efficiency.

[0006] To overcome the above limitations, there is an urgent need for a new type of aluminum alloy mounting frame for photovoltaic greenhouses that combines rapid assembly, length self-adaptation, and independent optimization of dual functional layers. Utility Model Content

[0007] In order to overcome the problems existing in the prior art, this application provides a double-layer aluminum alloy frame for a photovoltaic greenhouse.

[0008] The technical solution for a double-layer photovoltaic greenhouse aluminum alloy frame provided in this application is as follows:

[0009] A double-layer photovoltaic greenhouse aluminum alloy frame includes an arc-shaped support and a mounting frame connecting the two arc-shaped supports. The mounting frame is connected to the arc-shaped support at both ends by detachable connectors. The arc-shaped support is connected to the ground at both ends by a base. Several sets of arc-shaped auxiliary frames parallel to the arc-shaped support are also provided between the arc-shaped supports. The arc-shaped auxiliary frames are respectively connected between two adjacent sets of mounting frames. The arc-shaped support includes an upper frame and a lower frame, which are connected by a connecting plate. The mounting frame includes a photovoltaic mounting plate and a functional layer mounting plate, which are connected by a support plate.

[0010] By adopting the above technical solution, the arc-shaped support is first fixed to the ground via a base. The arc-shaped support consists of an upper frame and a lower frame connected by a connecting plate to form a double-layer structure, providing independent installation space for photovoltaic modules and agricultural equipment. The two ends of the mounting frame are connected to the arc-shaped support using detachable connectors. Its photovoltaic mounting plate and functional layer mounting plate are separated by a support plate and are used to install photovoltaic modules and environmental control equipment respectively, realizing the layered independent optimization of power generation and agricultural functions. Several sets of arc-shaped auxiliary frames are arranged in parallel between the arc-shaped supports and connect adjacent sets of mounting frames, which enhances the overall structural stability. When maintenance is required, the equipment on the photovoltaic mounting plate or functional layer mounting plate can be directly inspected to avoid mutual interference. The detachable connectors allow the length of the shed to be flexibly adjusted according to the size of the plot by increasing or decreasing the number of arc-shaped supports and mounting frames, which facilitates rapid on-site assembly and transportation, and reduces costs.

[0011] Preferably, the upper frame includes an integrally formed first arc-shaped main board and a bottom first connecting arc plate, the bottom surface of the first arc-shaped main board being perpendicular to the first connecting arc plate; the lower frame includes an integrally formed second arc-shaped main board and a top second connecting arc plate, the top of the second arc-shaped main board being perpendicular to the second connecting arc plate, and the top and bottom of the connecting plate are respectively provided with first snap-fit ​​grooves that cooperate with the first connecting arc plate and the second connecting arc plate.

[0012] Preferably, the first hook plate is integrally formed on both sides of the first snap-fit ​​groove of the connecting plate, wherein the first hook plate is located on both sides of the arc-shaped bracket.

[0013] By adopting the above technical solution, the first arc-shaped main board of the upper frame and the first connecting arc plate are integrally formed and perpendicular to each other, and the second arc-shaped main board of the lower frame and the second connecting arc plate are integrally formed and perpendicular to each other. When building the aluminum alloy frame of the double-layer photovoltaic greenhouse, the first connecting arc plate and the second connecting arc plate are respectively inserted into the first snap-fit ​​grooves opened at the top and bottom of the connecting plate. Through this snap-fit ​​method, the upper frame and the lower frame are quickly and stably connected to form a double-layer structure, providing a reliable spatial foundation for the independent layered installation of photovoltaic modules and agricultural equipment, and meeting the differentiated needs of photovoltaic power generation and crop growth.

[0014] Preferably, the photovoltaic mounting plate includes an integrally formed first main board and a first connecting plate, with photovoltaic mounting grooves on both sides of the first main board and the bottom of the first main board perpendicular to the first connecting plate; the functional layer mounting plate includes an integrally formed second main board and a second connecting plate, with the top of the second main board perpendicular to the second connecting plate, and the top and bottom of the support plate are respectively provided with second snap-fit ​​grooves that cooperate with the first connecting plate and the second connecting plate.

[0015] Preferably, the detachable connector includes a plate body and connecting grooves and a second hook plate located on both sides of the plate body, wherein the connecting grooves are fitted with the first connecting plate and the side of the first connecting plate, the two ends of the connecting grooves are respectively attached to the first main plate and the second main plate, the second hook plate is engaged with the first hook plate, and the length of the second hook plate is greater than that of the first hook plate.

[0016] By adopting the above technical solution, the photovoltaic mounting slots on both sides of the first main board of the photovoltaic mounting plate are used to install photovoltaic modules, and the first main board is integrally formed with the vertical first connecting plate; the second main board of the functional layer mounting plate is integrally formed with the vertical second connecting plate and is used to install agricultural equipment. The first connecting plate and the second connecting plate are respectively inserted into the second snap-fit ​​slots at the top and bottom of the support plate to achieve a stable connection between the photovoltaic mounting plate, the functional layer mounting plate and the support plate, forming a layered installation structure. When connecting the mounting frame and the arc-shaped bracket, the connecting slots on both sides of the detachable connector are respectively fitted with the sides of the first connecting plate and the second connecting plate of the photovoltaic mounting plate and the functional layer mounting plate. The two ends of the connecting slots are attached to the first main board and the second main board. At the same time, the second hook plate is used to engage with the first hook plate on the arc-shaped bracket. Since the second hook plate is longer than the first hook plate, reliable hook fixing can be achieved, thereby quickly and stably connecting the mounting frame and the arc-shaped bracket, completing the assembly and construction of the greenhouse frame.

[0017] Preferably, several sets of auxiliary plates are installed between two adjacent connecting plates on the arc-shaped bracket, and the top and bottom of the auxiliary plates are respectively provided with third snap-fit ​​grooves that fit into the first connecting arc plate and the second connecting arc plate.

[0018] By adopting the above technical solution, when the upper and lower frames are connected by connecting plates to form an arc-shaped support, the third locking grooves at the top and bottom of the auxiliary plates are simultaneously engaged with the first and second connecting arc plates between adjacent connecting plates on the arc-shaped support. In this way, several sets of auxiliary plates can be quickly installed between adjacent connecting plates. The installation of the auxiliary plates further enhances the structural strength and stability of the arc-shaped support, better supporting photovoltaic modules and agricultural equipment, ensuring the safety and reliability of the double-layer photovoltaic greenhouse during use, and also helping to optimize the internal spatial structure and improve overall performance.

[0019] Preferably, the cross-section of the arc-shaped auxiliary frame is a T-shaped structure, and the two ends of the arc-shaped auxiliary frame are provided with fourth card slots that can be fitted into the first motherboard or the second motherboard.

[0020] By adopting the above technical solution, the fourth locking slots at both ends of the arc-shaped auxiliary frame are used to fit it into the first or second main board of the mounting frame. Thanks to the T-shaped cross-section of the arc-shaped auxiliary frame, it is tightly and securely connected between adjacent sets of mounting frames, while also cooperating with the arc-shaped support. This not only enhances the overall stability and strength of the greenhouse frame, but also allows for flexible adjustment of the greenhouse length by increasing or decreasing the number of arc-shaped auxiliary frames according to the actual plot size and planting needs, thus adapting the greenhouse length to meet different usage scenarios.

[0021] Preferably, the base adopts a U-shaped groove, and several sets of fixing bolts are provided on the base between the connection end with the upper frame and the lower frame. The fixing bolts are used to fix the connection part on the bottom surface.

[0022] By adopting the above technical solution, the base is placed on the ground, and the connecting ends of the upper and lower frames are embedded and fixed in the U-shaped groove of the base. Then, several sets of fixing bolts on the base located between the connecting ends of the upper and lower frames are passed through the corresponding holes on the base and tightened to the pre-set connection parts (such as embedded parts) on the ground. In this way, the arc-shaped bracket is stably installed on the ground, ensuring that the foundation support of the entire greenhouse frame is solid and reliable, and can withstand the load of photovoltaic modules, agricultural equipment and the external environment, ensuring the long-term stable operation of the greenhouse.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This application uses a double-layer structure consisting of an upper frame and a lower frame with an arc-shaped bracket. Combined with independent photovoltaic mounting panels and functional layer mounting panels in the mounting frame, it forms a dual-functional layer for photovoltaic power generation and agricultural environmental control. This not only avoids the impact of photovoltaic panels blocking crop photosynthesis, but also provides independent installation space for equipment such as heat preservation and shading, thus solving the problem of single function.

[0025] 2. This application uses a mounting frame and an arc-shaped bracket connected by detachable connectors. The arc-shaped auxiliary frame is set between adjacent mounting frames. Combined with the design of the fixing bolts of the base, the frame can be flexibly disassembled and expanded to adapt to different plot sizes, reduce transportation and assembly costs, and overcome the limitations of structural rigidity.

[0026] 3. This application uses a layered arrangement of photovoltaic mounting plates and functional layer mounting plates to allow photovoltaic modules and agricultural equipment to be installed on different planes, so that they do not interfere with each other during maintenance, thus improving operation and maintenance efficiency. At the same time, the cooperation of structures such as connecting plates, snap-fit ​​slots and hook plates enhances the stability of the frame and the ease of assembly, enabling rapid installation and adaptive length adjustment to meet the diversified needs of the "agricultural-photovoltaic complementary" model. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the overall structure of the aluminum alloy frame of the double-layer photovoltaic greenhouse;

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 yes Figure 1 Enlarged view at point B in the middle;

[0030] Figure 4 yes Figure 1 Enlarged view at point C;

[0031] Figure 5 yes Figure 1 Enlarged view of point D in the middle.

[0032] Explanation of reference numerals in the attached drawings: 1. Arc-shaped bracket; 11. Upper frame; 111. First arc-shaped main board; 112. First connecting arc plate; 12. Lower frame; 121. Second arc-shaped main board; 122. Second connecting arc plate; 13. Connecting plate; 131. First snap-fit ​​groove; 132. First hook plate; 14. Auxiliary plate; 141. Third snap-fit ​​groove; 2. Mounting frame; 21. Photovoltaic mounting plate; 211. First main board; 2111. Photovoltaic mounting groove; 212. First connecting plate; 22. Functional layer mounting plate; 221. Second main board; 222. Second connecting plate; 23. Support plate; 231. Second snap-fit ​​groove; 3. Detachable connector; 31. Plate body; 32. Connecting groove; 33. Second hook plate; 4. Base; 41. U-shaped groove; 42. Fixing bolt; 5. Arc-shaped auxiliary frame; 51. Fourth snap-fit ​​groove. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a double-layer photovoltaic greenhouse aluminum alloy frame.

[0035] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A double-layer photovoltaic greenhouse aluminum alloy frame includes an arc-shaped support 1 and a mounting frame 2 connecting the two arc-shaped supports 1. The two ends of the mounting frame 2 are connected to the arc-shaped support 1 through detachable connectors 3. The two ends of the arc-shaped support 1 are connected to the ground through bases 4. Several sets of arc-shaped auxiliary frames 5 parallel to the arc-shaped support 1 are also provided between the arc-shaped supports 1. The arc-shaped auxiliary frames 5 are respectively connected between two adjacent sets of mounting frames 2. The arc-shaped support 1 includes an upper frame body 11 and a lower frame body 12, and the upper frame body 11 and the lower frame body 12 are connected by a connecting plate 13. The mounting frame 2 includes a photovoltaic mounting plate 21 and a functional layer mounting plate 22, and the photovoltaic mounting plate 21 and the functional layer mounting plate 22 are connected by a support plate 23. First, the arc-shaped bracket 1 is fixed to the ground via the base 4. The arc-shaped bracket 1 consists of an upper frame 11 and a lower frame 12 connected by a connecting plate 13 to form a double-layer structure, providing independent installation space for photovoltaic modules and agricultural equipment. The two ends of the mounting frame 2 are connected to the arc-shaped bracket 1 by detachable connectors 3. Its photovoltaic mounting plate 21 and functional layer mounting plate 22 are separated by a support plate 23, and are used to install photovoltaic modules and environmental control equipment respectively, realizing the layered independent optimization of power generation and agricultural functions. Several sets of arc-shaped auxiliary frames 5 are arranged in parallel between the arc-shaped brackets 1 and connect adjacent sets of mounting frames 2, which enhances the overall structural stability. When maintenance is required, the equipment on the photovoltaic mounting plate 21 or the functional layer mounting plate 22 can be directly inspected to avoid mutual interference. The detachable connectors 3 allow the length of the shed to be flexibly adjusted according to the size of the plot by increasing or decreasing the number of arc-shaped brackets 1 and mounting frames 2, which facilitates rapid on-site assembly and transportation and reduces costs.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The upper frame 11 includes an integrally formed first arc-shaped main plate 111 and a bottom first connecting arc plate 112, with the bottom surface of the first arc-shaped main plate 111 perpendicular to the first connecting arc plate 112. The lower frame 12 includes an integrally formed second arc-shaped main plate 121 and a top second connecting arc plate 122, with the top of the second arc-shaped main plate 121 perpendicular to the second connecting arc plate 122. The top and bottom of the connecting plate 13 are respectively provided with first snap-fit ​​grooves 131 that mate with the first connecting arc plate 112 and the second connecting arc plate 122. First hook plates 132 are integrally formed on both sides of the first snap-fit ​​grooves 131 of the connecting plate 13, with the first hook plates 132 located on both sides of the arc-shaped support 1. The first arc-shaped main plate 111 of the upper frame 11 and the first connecting arc plate 112 are integrally formed and perpendicular to each other. The second arc-shaped main plate 121 of the lower frame 12 and the second connecting arc plate 122 are integrally formed and perpendicular to each other. When building the double-layer photovoltaic greenhouse aluminum alloy frame, the first connecting arc plate 112 and the second connecting arc plate 122 are respectively inserted into the first snap-fit ​​grooves 131 opened at the top and bottom of the connecting plate 13. Through this snap-fit ​​method, the upper frame 11 and the lower frame 12 are quickly and stably connected to form a double-layer structure, providing a reliable spatial foundation for the independent layered installation of photovoltaic modules and agricultural equipment, and meeting the differentiated needs of photovoltaic power generation and crop growth.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The photovoltaic mounting plate 21 includes an integrally formed first main plate 211 and a first connecting plate 212. Photovoltaic mounting grooves 2111 are formed on both sides of the first main plate 211, and the bottom of the first main plate 211 is perpendicular to the first connecting plate 212. The functional layer mounting plate 22 includes an integrally formed second main plate 221 and a second connecting plate 222. The top of the second main plate 221 is perpendicular to the second connecting plate 222. The top and bottom of the support plate 23 are respectively provided with second snap-fit ​​grooves 231 that mate with the first connecting plate 212 and the second connecting plate 222. The detachable connector 3 includes a plate body 31 and connecting grooves 32 and second hook plates 33 located on both sides of the plate body 31. The connecting grooves 32 fit into the first connecting plate 212 and its sides, with both ends of the connecting grooves 32 respectively abutting against the first main plate 211 and the second main plate 221. The second hook plate 33 engages with the first hook plate 132, and the length of the second hook plate 33 is greater than that of the first hook plate 132. The photovoltaic mounting plate 21 has photovoltaic mounting slots 2111 on both sides of its first main plate 211 for mounting photovoltaic modules. The first main plate 211 is integrally formed with the vertical first connecting plate 212. The functional layer mounting plate 22 has a second main plate 221 integrally formed with the vertical second connecting plate 222 for mounting agricultural equipment. The first connecting plate 212 and the second connecting plate 222 are respectively inserted into the second snap-fit ​​slots 231 at the top and bottom of the support plate 23, achieving a stable connection between the photovoltaic mounting plate 21, the functional layer mounting plate 22, and the support plate 23, forming a layered mounting structure. When connecting the mounting frame 2 and the arc-shaped bracket 1, the connecting grooves 32 on both sides of the plate 31 of the detachable connector 3 are respectively fitted with the first connecting plate 212 and the second connecting plate 222 of the photovoltaic mounting plate 21 and the functional layer mounting plate 22. The two ends of the connecting groove 32 are attached to the first main plate 211 and the second main plate 221. At the same time, the second hook plate 33 is used to engage with the first hook plate 132 on the arc-shaped bracket 1. Since the length of the second hook plate 33 is greater than that of the first hook plate 132, reliable hooking and fixing can be achieved, thereby quickly and stably connecting the mounting frame 2 and the arc-shaped bracket 1, completing the assembly and construction of the greenhouse frame.

[0038] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4Several sets of auxiliary plates 14 are installed between two adjacent connecting plates 13 on the arc-shaped support 1. The top and bottom of the auxiliary plates 14 are respectively provided with third locking grooves 141 that fit into the first connecting arc plate 112 and the second connecting arc plate 122. When the upper frame 11 and the lower frame 12 are connected by the connecting plates 13 to form the arc-shaped support 1, the third locking grooves 141 on the top and bottom of the auxiliary plates 14 are simultaneously fitted into the first connecting arc plate 112 and the second connecting arc plate 122 between two adjacent connecting plates 13 on the arc-shaped support 1. In this way, several sets of auxiliary plates 14 are quickly installed between two adjacent connecting plates 13. The installation of the auxiliary plates 14 further enhances the structural strength and stability of the arc-shaped support 1, which can better support photovoltaic modules and agricultural equipment, ensure the safety and reliability of the double-layer photovoltaic greenhouse during use, and also help optimize the internal space structure and improve the overall performance.

[0039] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The curved auxiliary frame 5 has a T-shaped cross-section, and its two ends are provided with fourth locking slots 51 that can engage with the first main board 211 or the second main board 221. Utilizing the fourth locking slots 51 at both ends of the curved auxiliary frame 5, it engages with the first main board 211 or the second main board 221 of the mounting frame 2. Thanks to the T-shaped cross-section of the curved auxiliary frame 5, it is tightly and securely connected between adjacent sets of mounting frames 2, while also cooperating with the curved support 1. This not only enhances the overall stability and strength of the greenhouse frame, but also allows for flexible adjustment of the greenhouse length by increasing or decreasing the number of curved auxiliary frames 5 according to the actual plot size and planting needs, based on the length of the mounting frames 2, thus achieving adaptive greenhouse length to meet different usage scenarios.

[0040] Reference Figure 1 and Figure 5 The base 4 adopts a U-shaped groove 41, and several sets of fixing bolts 42 are provided on the base 4 between the connecting ends of the upper frame 11 and the lower frame 12. The fixing bolts 42 are used to fix the base 4 to the connecting parts on the bottom surface. The base 4 is placed on the ground so that the connecting ends of the upper frame 11 and the lower frame 12 are embedded and fixed in the U-shaped groove of the base 4. Then, the several sets of fixing bolts 42 on the base 4 between the connecting ends of the upper frame 11 and the lower frame 12 are passed through the corresponding holes on the base 4 and tightened to the pre-set connecting parts (such as embedded parts) on the ground. In this way, the arc-shaped bracket 1 is stably installed on the ground, ensuring that the foundation support of the entire greenhouse frame is solid and reliable, and can withstand the load of photovoltaic modules, agricultural equipment and external environment, ensuring the long-term stable operation of the greenhouse.

[0041] Working principle: The arc-shaped bracket 1 serves as the basic support structure. Its upper frame 11 and lower frame 12 are connected by a connecting plate 13 to form a double-layer structure. The first arc-shaped main plate 111 of the upper frame 11 and the second arc-shaped main plate 121 of the lower frame 12 cooperate with the first connecting arc plate 13 through the first connecting arc plate 112 and the second connecting arc plate 122, respectively. The auxiliary plate 14 between adjacent connecting plates 13 further reinforces the arc-shaped bracket 1 through the third connecting slot 141. The mounting frame 2 is connected to the arc-shaped bracket 1 at both ends by detachable connectors 3. The connecting grooves 32 on both sides of the plate 31 of the detachable connector 3 are fitted with the first connecting plate 212 of the photovoltaic mounting plate 21 and the second connecting plate 222 of the functional layer mounting plate 22. The two ends are attached to the first main plate 211 and the second main plate 221. The second hook plate 33 is snapped into the first hook plate 132 to realize the detachable connection between the mounting frame 2 and the arc-shaped bracket 1. The photovoltaic mounting plate 21 and the functional layer mounting plate 22 of the mounting frame 2 cooperate with the connecting plate 13 of the two through the second snap-fit ​​groove 231 of the support plate 23 to form a photovoltaic mounting layer and an agricultural functional layer that are separated into upper and lower parts. The photovoltaic mounting groove 2111 of the photovoltaic mounting plate 21 is used to fix the photovoltaic modules. The functional layer mounting plate 22 can install agricultural equipment such as insulation layer, sprinkler, and supplemental light, realizing independent optimization of the two layers. The curved auxiliary frame 5 between the curved supports 1 has a T-shaped cross-section, and the fourth locking groove 51 at both ends fits into the first main board 211 or the second main board 221, connecting adjacent mounting frames 2 and enhancing the overall structural stability. The base 4 adopts a U-shaped groove 41, which is fixed to the ground connection part by fixing bolts 42 to achieve stable installation of the curved support 1. The detachable connection between the mounting frame 2 and the curved support 1, and the locking structure of the upper and lower frame bodies 12 of the curved support 1, allow the frame to be quickly assembled and disassembled to adapt to different plot sizes. The length of the shed can be flexibly adjusted by increasing or decreasing the number of curved supports 1, adjusting the length of the mounting frame 2, and adjusting the number of curved auxiliary frames 5 to meet the length self-adaptation requirements.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-layer aluminum alloy frame for a photovoltaic greenhouse, characterized in that: It includes an arc-shaped bracket (1) and a mounting frame (2) connecting the two arc-shaped brackets (1). The two ends of the mounting frame (2) are connected to the arc-shaped bracket (1) through detachable connectors (3). The two ends of the arc-shaped bracket (1) are connected to the ground through a base (4). Several sets of arc-shaped auxiliary frames (5) parallel to the arc-shaped bracket (1) are also provided between the arc-shaped brackets (1). The arc-shaped auxiliary frames (5) are respectively connected between two adjacent sets of mounting frames (2). The arc-shaped support (1) includes an upper frame (11) and a lower frame (12), and the upper frame (11) and the lower frame (12) are connected by a connecting plate (13); The mounting frame (2) includes a photovoltaic mounting plate (21) and a functional layer mounting plate (22), and the photovoltaic mounting plate (21) and the functional layer mounting plate (22) are connected by a support plate (23).

2. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 1, characterized in that: The upper frame (11) includes an integrally formed first arc-shaped main board (111) and a bottom first connecting arc plate (112), the bottom surface of the first arc-shaped main board (111) is perpendicular to the first connecting arc plate (112); the lower frame (12) includes an integrally formed second arc-shaped main board (121) and a top second connecting arc plate (122), the top of the second arc-shaped main board (121) is perpendicular to the second connecting arc plate (122), and the top and bottom of the connecting plate (13) are respectively provided with first snap-fit ​​grooves (131) that cooperate with the first connecting arc plate (112) and the second connecting arc plate (122).

3. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 2, characterized in that: The first hook plate (132) is integrally formed on both sides of the first snap groove (131) of the connecting plate (13), wherein the first hook plate (132) is located on both sides of the arc-shaped bracket (1).

4. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 1, characterized in that: The photovoltaic mounting plate (21) includes an integrally formed first main board (211) and a first connecting plate (212). The first main board (211) has photovoltaic mounting grooves (2111) on both sides, and the bottom of the first main board (211) is perpendicular to the first connecting plate (212). The functional layer mounting plate (22) includes an integrally formed second main board (221) and a second connecting plate (222). The top of the second main board (221) is perpendicular to the second connecting plate (222), and the top and bottom of the support plate (23) are respectively provided with second snap-fit ​​grooves (231) that cooperate with the first connecting plate (212) and the second connecting plate (222).

5. The double-layer photovoltaic greenhouse aluminum alloy frame according to claim 3 or 4, characterized in that: The detachable connector (3) includes a plate (31) and connecting grooves (32) and a second hook plate (33) located on both sides of the plate (31). The connecting grooves (32) are fitted with the first connecting plate (212) and the side of the first connecting plate (212). The two ends of the connecting grooves (32) are respectively attached to the first main plate (211) and the second main plate (221). The second hook plate (33) is engaged with the first hook plate (132), and the length of the second hook plate (33) is greater than that of the first hook plate (132).

6. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 2, characterized in that: Several sets of auxiliary plates (14) are also installed between two adjacent connecting plates (13) on the arc-shaped bracket (1). The top and bottom of the auxiliary plates (14) are respectively provided with third snap-fit ​​grooves (141) that fit into the first connecting arc plate (112) and the second connecting arc plate (122).

7. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 4, characterized in that: The arc-shaped auxiliary frame (5) has a T-shaped cross section, and the two ends of the arc-shaped auxiliary frame (5) are provided with a fourth card slot (51) that can be fitted with the first main board (211) or the second main board (221).

8. The double-layer photovoltaic greenhouse aluminum alloy framework according to claim 1, characterized in that: The base (4) adopts a U-shaped groove (41), and a number of fixing bolts (42) are provided on the base (4) between the upper frame (11) and the lower frame (12). The fixing bolts (42) are used to fix the connection part on the bottom surface.

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