Permanent and temporary combined photovoltaic panel mounting structure

Abstract

The invention discloses a permanent and temporary combined photovoltaic panel mounting structure, which comprises a main beam and two supporting mechanisms, the main beam is used for mounting a photovoltaic panel; the two supporting mechanisms are arranged at intervals in the length direction of the main beam, and each supporting mechanism comprises a stand column, a rotating lug, a first positioning assembly and a second positioning assembly; the stand column is provided with an upper end and a lower end, the upper end of the stand column extends in the direction of the main beam, and the lower end of the stand column is detachably arranged on the roof of the box-type house. The rotating lug is arranged on the main beam and is rotatably connected to the upper end of the stand column on the rotating axis; the first positioning assembly and the second positioning assembly are used for limiting the rotating lug to rotate in the first direction and the second direction of the rotating axis correspondingly. The problems that in the prior art, photovoltaic panels are installed through a welding technology, so that roof waterproof performance is affected, and reusability is not achieved are solved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel installation and construction technology, specifically to a photovoltaic panel installation structure that combines permanent and temporary installations. Background Technology

[0002] Currently, to make full use of space, photovoltaic panels (photovoltaic systems) are often installed on the roofs of container houses. However, because these photovoltaic panels are usually made using a welding process, the following drawbacks exist: 1. It can easily damage the structure of the container house roof, affecting its waterproofing effect; 2. Removing photovoltaic panels requires cutting operations, which may damage the frame and make it difficult to remove the photovoltaic panels and move them to a permanent roof for installation later. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a photovoltaic panel installation structure that combines permanent and temporary installation, so as to solve the problems of photovoltaic panels being installed by welding process, which affects roof waterproofing and is not reusable.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A combined permanent and temporary photovoltaic panel installation structure is used to reusably install photovoltaic panels on the roof of a container house. The installation structure includes: The main beam is used to install photovoltaic panels; Two support mechanisms are spaced apart along the length of the main beam. Each support mechanism includes: a column, a rotating lug, a first positioning component, and a second positioning component. The column has an upper end and a lower end, the upper end of which extends toward the main beam, and the lower end is detachably mounted on the roof of the box-type house. The rotating lug is disposed on the main beam and rotatably connected to the upper end of the column on the rotation axis; The first positioning component includes: a first stop portion and a first ratchet portion. The first stop portion is disposed on the rotating ear. The first ratchet portion is movable relative to the first stop portion and has a first stop position formed after engaging with it and a first release position formed after disengaging from the first stop portion. When the first ratchet portion is in the first stop position, it is used to prevent the rotating ear from rotating along a first direction of the rotation axis via the first stop portion. The second positioning component includes: a second stop and a second ratchet. The second stop is disposed opposite to the first stop on the rotating ear. The second ratchet is movable relative to the second stop and has a second stop position formed after engaging with the second stop and a second release position formed after disengaging from the second stop. When the second ratchet is in the second stop position, it is used to prevent the rotating ear from rotating along a second direction of the rotation axis via the second stop. The first direction and the second direction are configured as two opposite directions. The first ratchet portion switches to the corresponding stop position before the second ratchet portion; and a cable is provided between the two columns, with both ends of the cable passing through the two columns and connected to the corresponding second ratchet portion. A turnbuckle is provided in the middle of the cable. When an external force is applied to the turnbuckle, the cable pulls the two second ratchet portions to switch to the second stop position simultaneously, and keeps the two columns in a relatively taut state.

[0005] Furthermore, a through hole is provided at the upper end of the column, and the gap of the first ratchet portion passes through the through hole.

[0006] Furthermore, the inner wall of the through hole is provided with a guide rib, which extends along the moving direction of the first ratchet portion to guide the first ratchet portion to move between the first stop position and the first release position.

[0007] Furthermore, the through hole is detachably provided with a locking member, which can be inserted into the first ratchet portion and locked at the through hole.

[0008] Furthermore, the first stop portion and / or the second stop portion are arranged in a ring, and their axes are collinear with the rotation axis.

[0009] Furthermore, the first ratchet portion and / or the second ratchet portion are arranged in a ring, and their axes are collinear with the rotation axis.

[0010] Furthermore, a slider is fitted onto the outer surface of the second ratchet portion, and the slider is slidably disposed at the upper end of the column.

[0011] Furthermore, a groove is provided at the upper end of the column, and the slider is slidably disposed in the groove.

[0012] Furthermore, the first end of the chute extends to the edge of the column, and its end is spaced apart from the second stop. and / or The slider is equipped with a pull ring for connecting the cable.

[0013] Furthermore, a number of secondary beams are provided between the main beam and the photovoltaic panel, and the two ends of the secondary beams are detachably connected to the main beam and the photovoltaic panel, respectively.

[0014] Compared to existing technologies, this invention has the following advantages: The combination of the main beam and the support mechanism allows for the detachable installation of photovoltaic panels onto the roof of the container house. This not only avoids damaging the roof's waterproofing during installation but also facilitates dismantling and relocation to a permanent roof for installation, ensuring the integrity of the photovoltaic panels. Furthermore, the main beam can rotate relative to the column via rotating lugs, allowing for angle adjustment based on the column position before photovoltaic panel installation, thus facilitating panel angle adjustment. Simultaneously, the rotating lugs can be bidirectionally locked by the first and second positioning components, preventing deflection after installation. Finally, the cooperation of cables and turnbuckles ensures the column is taut while the rotating lugs are positioned, improving overall stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation structure according to an embodiment of the present invention; Figure 2 for Figure 1 Sectional view along line AA; Figure 3 for Figure 2 A magnified view of a section at point B in the middle; Figure 4 This is a schematic diagram of the support mechanism according to an embodiment of the present invention; Figure 5 This is an exploded view of a support mechanism according to an embodiment of the present invention; Figure 6 This is an exploded view of the support mechanism according to an embodiment of the present invention from another angle.

[0016] The reference numerals in the accompanying drawings include: 1. Photovoltaic panels; 2. Container roof; 3. Main beam; 4. Column; 401. Through hole; 402. Guide rib; 403. Slide groove; 5. Rotate the ear; 6. First positioning component; 601. First stop; 602. First ratchet; 7. Second positioning component; 701. Second stop; 702. Second ratchet; 8. Cable; 9. Turnbuckles; 10. Slider; 11. Pull ring; 12. Secondary beams; C. Axis of rotation; C1, First Direction; C2, Second Direction. Detailed Implementation

[0017] The present invention will be further described in detail below through specific embodiments: In embodiments of the present invention, such as Figures 1-6 As shown, the permanent and temporary photovoltaic panel installation structure includes: a main beam 3 and two support mechanisms; the main beam 3 is used to install photovoltaic panels 1; the two support mechanisms are arranged at intervals along the length of the main beam 3, and each support mechanism includes: a column 4, a rotating lug 5, a first positioning component 6 and a second positioning component 7; The column 4 has an upper end and a lower end. The upper end of the column 4 extends toward the main beam 3, and its lower end is detachably installed on the roof 2 of the box-type house. The rotating ear 5 is disposed on the main beam 3 and is rotatably connected to the upper end of the column 4 on the rotation axis C; The first positioning component 6 includes: a first stop portion 601 and a first ratchet portion 602. The first stop portion 601 is disposed on the rotating ear 5. The first ratchet portion 602 is movable relative to the first stop portion 601 and has a first stop position formed after engaging with it and a first release position formed after disengaging from the first stop portion 601. When the first ratchet portion 602 is in the first stop position, it is used to prevent the rotating ear 5 from rotating along the first direction C1 of the rotation axis C via the first stop portion 601. The second positioning component 7 includes: a second stop portion 701 and a second ratchet portion 702. The second stop portion 701 is disposed opposite to the first stop portion 601 on the rotating ear 5. The second ratchet portion 702 is movable relative to the second stop portion 701 and has a second stop position formed after engaging with it and a second release position formed after disengaging from the second stop portion 701. When the second ratchet portion 702 is in the second stop position, it is used to prevent the rotating ear 5 from rotating along the second direction C2 of the rotation axis C via the second stop portion 701. The first direction C1 and the second direction C2 are configured as two opposite directions. The first ratchet 602 switches to the corresponding stop position before the second ratchet 702; and a cable 8 is provided between the two columns 4, with both ends of the cable 8 passing through the two columns 4 and connected to the corresponding second ratchet 702. A turnbuckle 9 is provided in the middle of the cable 8. When an external force is applied to the turnbuckle 9, the cable 8 pulls the two second ratchet 702 to switch to the second stop position at the same time, and keeps the two columns 4 in a relatively taut state.

[0018] Specifically, in this embodiment of the invention, the main beam 3 and two supporting mechanisms constitute the main frame of the installation structure; that is, the two supporting mechanisms are spaced apart and connected by the main beam 3. During installation, the two supporting mechanisms are fixed to opposite sides of the roof 2 of the box-type house, so that the main beam 3 can be suspended above the roof 2 of the box-type house. Finally, the photovoltaic panel 1 is installed on the main beam 3. In this way, by using the combination of the main beam 3 and the supporting mechanisms, not only can the photovoltaic panel 1 be installed on the roof 2 of the box-type house without damaging its waterproof layer, but also the photovoltaic panel 1 can be removed without damage when it is later removed and installed on the permanent roof, improving its reuse rate and thus achieving the purpose of installation that combines temporary and permanent installations. Of course, for the entire photovoltaic system, the number of main beams 3 and supporting mechanisms can be increased accordingly to install the entire photovoltaic system on the roof.

[0019] In this embodiment of the invention, to connect the main beam 3 to the supporting mechanism, the supporting mechanism includes a column 4 and a rotating lug 5. The column 4 has upper and lower ends, such that the upper end of the column 4 is connected to the main beam 3 via the rotating lug 5, and its lower end is detachably installed to the roof 2 of the container house. Thus, the column 4 provides upward support to the main beam 3 and enables a detachable connection between the column 4 and the roof 2 of the container house. During actual installation, the lower end of the column 4 can be rigidly anchored to the load-bearing frame of the container house using high-strength bolts to prevent damage to the roof waterproofing layer. During disassembly, the integrity of the photovoltaic panel 1 can also be maintained to improve its reusability.

[0020] On the other hand, in order to allow the main beam 3 to rotate relative to the upper end of the column 4 and adjust its position angle to adapt to the installation requirements of the photovoltaic panel 1, the rotating ear 5 is fixed to the bottom of the main beam 3, and a rotating shaft is provided. This rotating shaft can be installed inside the housing (not shown). The axis of this rotating shaft is defined as the rotation axis C. The rotating ear 5 can rotate around the rotation axis C, so that the main beam 3 can rotate with it. This allows the pitch angle of the main beam 3 to be adjusted according to the rotation angle of the rotating ear 5, thereby adapting to the pitch angle of the photovoltaic panel 1 installed on the main beam 3.

[0021] In this embodiment of the invention, the support mechanism further includes a first positioning component 6, which has a first stop portion 601 and a first ratchet portion 602. To install the first stop portion 601 and the first ratchet portion 602 into their respective positions, a first fixed protrusion is provided on the front of the rotating ear 5, and the first stop portion 601 is formed on this first fixed protrusion. Similarly, a first movable protrusion is movably provided at the upper end of the column 4, and the first ratchet portion 602 is formed on this first movable protrusion. Thus, pushing or pulling the first movable protrusion allows it to move relative to the first fixed protrusion, moving closer to or away from it. Since the moving direction of the first movable protrusion is along the extension direction of the rotation axis C, and the first stop portion 601 and the first ratchet portion 602 are arranged opposite each other, the first ratchet portion 602 can follow the movement of the first movable protrusion during its movement, thus giving the first ratchet portion 602 a first stop position and a first release position. When the first ratchet 602 is in the first stop position, it can engage with the serrations on the first stop 601. This engagement restricts the rotation of the rotating lug 5 along the first direction C1 of the rotation axis C, thus initially positioning the main beam 3 by restricting the rotation of the rotating lug 5 along the first direction C1. Conversely, when the first ratchet 602 is in the first release position, because the first ratchet 602 and the first stop 601 are spaced apart, the first stop 601 can rotate unrestricted along the rotation axis C under external force, allowing the angle of the main beam 3 to be adjusted according to the rotating lug 5.

[0022] In this embodiment of the invention, in order to adapt to the first positioning component 6 and to restrict the rotation of the rotating ear 5 along the second direction C2 of the rotation axis C (the first direction C1 and the second direction C2 are two opposite directions), the support mechanism further includes a second positioning component 7, which has a second stop portion 701 and a second ratchet portion 702. To install the second stop portion 701 and the second ratchet portion 702 into their respective positions, a second fixed protrusion is provided on the back of the rotating ear 5, and the second stop portion 701 is formed at the second fixed protrusion. Similarly, a second movable protrusion is movably provided at the upper end of the column 4, and the second ratchet portion 702 is formed on the second movable protrusion. Thus, pushing or pulling the second movable protrusion allows it to move relative to the second fixed protrusion, thus moving closer to or away from the second fixed protrusion. Since the movement direction of the second movable protrusion is still arranged along the extension direction of the rotation axis C, and the second stop 701 and the second ratchet 702 are arranged opposite to each other, the second ratchet 702 can follow the movement of the second movable protrusion during its movement, thus giving the second ratchet 702 a second stop position and a second release position. When the second ratchet 702 is in the second stop position, it can engage with the serrations on the second stop 701. After engagement, the rotating ear 5 can be restricted from rotating along the second direction C2 of the rotation axis C. At the same time, when the first ratchet 602 is in the first stop position, pushing the second movable protrusion causes the second ratchet 702 to be in the second stop position, thereby enabling bidirectional locking of the rotating ear 5. This not only keeps the rotating ear 5 at the current adjustment angle but also improves structural stability. Conversely, when the second ratchet 702 is in the second release position, the rotating ear 5 can rotate along the second direction C2 of the rotation axis C under the action of external force because the second ratchet 702 and the second stop 701 are spaced apart. Simultaneously, when used in conjunction with the first positioning component 6, it can achieve both bidirectional locking and unlocking. Furthermore, both the first ratchet 602 and the second ratchet 702 are provided with inclined surfaces, the inclination directions of which are adapted to the first direction C1 and the second direction C2, respectively, and are not limited here.

[0023] In this embodiment of the invention, in order to achieve the initial positioning of the first positioning component 6 and the secondary positioning of the second positioning component 7 to complete the bidirectional locking, during installation, an external force is first applied to the first movable protrusion, causing it to move the first ratchet portion 602 to the first stop position. Then, the external force is applied to the second movable protrusion, causing the second ratchet portion 702 to move to the second stop position, so that the first ratchet portion 602 switches to the stop position before the second ratchet portion 702.

[0024] Furthermore, since the two columns 4 are independently installed, to improve the stability of the structure, the two columns 4 are connected by cables 8. Figure 2As shown, two cables 8 are provided, located at the upper end and middle of the column 4 respectively; of course, to reduce costs, only one cable 8 can be used. Furthermore, a turnbuckle 9 is provided in the middle of the cable 8. This turnbuckle 9 divides the cable 8 into two sections, with the proximal ends connected by the turnbuckle 9 and the distal ends connected to the corresponding columns 4. After all components are installed, the turnbuckle 9 can be rotated to tension the cable 8, ensuring that the self-locking thread mechanism of the turnbuckle 9 maintains constant tension under wind-induced vibration conditions, thus avoiding the risk of resonance caused by bolt loosening.

[0025] As described above, rotating the turnbuckle 9 can pull the two ends of the cable 8 to move towards each other. Since the second ratchet moves in the same direction as the corresponding end of the cable 8 when it moves from the second release position to the second stop position, the movement of the cable 8 can be used to drive the second ratchet portion 702 to move towards the second stop position. Specifically, one end of the cable 8 passes through the corresponding column 4 and connects to the second movable protrusion there. When the turnbuckle 9 is tightened, the end of the cable 8 can pull the second movable protrusion inward, and at the same time pull the column 4 inward. This allows the second ratchet portion 702 to be positioned at the second stop position, while keeping the two columns 4 in a relatively taut state. This enables the same external force to drive multiple components into position, and releasing the turnbuckle 9 allows multiple components to separate synchronously, facilitating quick installation and disassembly.

[0026] In this embodiment, a 60mm square tube is used as the column 4, and a square tube of the same size is used as the main beam 3. The main beam 3 can be fastened to the roof of the box-type house by using turnbuckles 9 as a reverse tension. There is no welding fixation throughout the process. The frame of the photovoltaic panel 1 is firmly connected to the roof of the box-type house by rotating lugs 5 and reinforcing with turnbuckles 9.

[0027] This installation structure enables the construction of a non-welded modular load-bearing system. Through the synergistic effect of the rotational connection and dynamic fastening of the column 4 and the main beam 3, the support frame of the photovoltaic panel 1 can be efficiently assembled and disassembled without damage. The structure uses the column 4 and the main beam 3 as the main load-bearing components, and combines them with the fastening devices of the first positioning component 6, the second positioning component 7, and the turnbuckle 9 to form an adjustable frame. The entire process eliminates traditional welding techniques, relying on purely mechanical connections to achieve structural integrity. This ensures both the load-bearing capacity under extreme conditions during temporary construction and the precision repositioning requirements during permanent installation, forming a triple force transmission mechanism of hinged main beam 3, elastic tension, and rigid connection.

[0028] After the temporary phase concludes, the prestress of the turnbuckles 9 is released using specialized dismantling tools, allowing for non-destructive separation of the connection nodes. All components can then be cleaned, cured, and transported to the permanent site. Existing structures can be directly reused on new building roofs, requiring only the height of the columns 4 to match the permanent base. This reduces material consumption and establishes a closed-loop resource cycle for processing, installation, dismantling, storage, and reuse. The construction process utilizes entirely dry methods, eliminating welding fire hazards and coating damage risks.

[0029] like Figure 5 , Figure 6 As shown, in one embodiment, a through hole 401 is provided at the upper end of the column 4, and the first ratchet 602 passes through the through hole 401 with a gap. Specifically, in order to enable the first ratchet 602 to switch between the first stop position and the first release position, this embodiment provides a through hole 401 at the upper end of the column 4, allowing the first ratchet 602 to pass through the through hole 401 with a gap, forming a sliding fit with the column 4. When initially positioning the rotating ear 5, it is only necessary to push the first ratchet 602 towards the first stop 601, so that the first ratchet 602 engages with the first stop 601 and is in the first stop position. Conversely, pulling the first ratchet 602 in the opposite direction will bring it to the first release position, making the operation more convenient and faster. In addition, when tightening the turnbuckle 9, the upper end of the column 4 will be pulled inward by the cable 8, causing the inner wall of the through hole 401 to slide relative to the first ratchet 602. Since there is a gap between the inner wall and the outer surface of the first ratchet 602, the upper end of the column 4 will not cause the first ratchet 602 to move with it and disengage from the first stop 601 during the tightening process.

[0030] Furthermore, such as Figure 5 , Figure 6 As shown, in one embodiment, the inner wall of the through hole 401 is provided with a guide rib 402, which extends along the moving direction of the first ratchet portion 602 to guide the first ratchet portion 602 to move between a first stop position and a first release position. Specifically, in order to constrain the moving path of the first ratchet portion 602 so that it can only move along the extending direction of the rotation axis C, this embodiment provides a guide rib 402 on the inner wall of the through hole 401, which can guide the first ratchet portion 602 to switch between the first stop position and the first release position. In other embodiments, in order to further improve the moving accuracy of the first ratchet portion 602, a guide groove is provided on the outer surface of the first movable protrusion where the first ratchet portion 602 is located, which slides with the guide rib 402; and / or, a plurality of guide ribs 402 are provided at intervals along the inner wall surface of the through hole 401.

[0031] Furthermore, a locking element (not shown) is detachably provided in the through hole 401. The locking element can pass through the first ratchet portion 602 and lock it in the through hole 401. The locking element is a locking bolt. When the first ratchet portion 602 is in the first stop position, the locking element is not tightened to facilitate the movement of the column 4 relative to the first ratchet portion 602 when it is tightened later. When the second ratchet portion 702 is in the second stop position, the locking element is tightened to the corresponding position to fix the first ratchet portion 602 relative to the upper end of the column 4. During disassembly, the locking element is unscrewed to release the constraint between the first ratchet portion 602 and the column 4. Of course, multiple locking elements can be provided to improve the connection strength and prevent the first ratchet portion 602 from moving freely.

[0032] like Figures 4-6 As shown, in one embodiment, the first stop portion 601 and the second stop portion 701 are arranged in a ring, and their axes are collinear with the rotation axis C. Preferably, the first ratchet portion 602 and the second ratchet portion 702 are arranged in a ring, and their axes are collinear with the rotation axis C. In this way, by increasing the contact area between the first stop portion 601 and the first ratchet portion 602, and between the second stop portion 701 and the second ratchet portion 702, the rotation of the rotating ear 5 in the first direction C1 and the second direction C2 are respectively restricted.

[0033] like Figures 3-6 As shown, in one embodiment, a slider 10 is fitted onto the outer surface of the second ratchet portion 702, and the slider 10 is slidably disposed on the upper end of the column 4. Specifically, in order to allow the second ratchet portion 702 to slide relative to the column 4 under the tension applied by the cable 8, this embodiment uses a slider 10 fitted onto the outer surface of the second ratchet portion 702, the bottom of which slides in engagement with the upper end of the column 4. Preferably, as shown... Figures 4-6 As shown, a groove 403 is provided at the upper end of the column 4, and the slider 10 is slidably disposed in the groove 403 to guide the second ratchet 702 to switch between the second stop position and the second release position. Simultaneously, a platform is provided at the upper end of the column 4, which serves as an extension of the column 4. Part of the groove 403 can be disposed on this platform to increase the travel of the slider 10, thus preventing the second ratchet 702 from being obstructed due to the narrow end face of the column 4.

[0034] Furthermore, the first end of the slide groove 403 extends to the edge of the column 4, and its end is spaced apart from the second stop portion 701. In this embodiment, since the cable 8 needs to first move the second ratchet portion 702 towards the second stop portion 701 by pulling it through the slider 10, and after moving to the end of the slide groove 403, the slider 10 is continuously tightened to cause the upper end of the column 4 to move; for this reason, the end of the slide groove 403 and the second stop portion 701 are spaced apart, and the gap between them can prevent the column 4 from being not tightened while the second ratchet portion 702 is already in the second stop position. Of course, a pull ring 11 is provided on the slider 10 for connecting the cable 8.

[0035] like Figure 2 As shown, in one embodiment, a plurality of secondary beams 12 are provided between the main beam 3 and the photovoltaic panel 1, and the two ends of the secondary beams 12 are detachably connected to the main beam 3 and the photovoltaic panel 1, respectively. Figures 4-6 As shown, a socket is provided at the top of the main beam 3 for the insertion of the secondary beam 12.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A permanent-temporary combined photovoltaic panel mounting structure for mounting photovoltaic panels in a recyclable manner to a box-type housing surface, characterized by, The mounting structure comprises: a main beam for mounting photovoltaic panels; two support mechanisms arranged at intervals along the length direction of the main beam, each of the support mechanisms comprising a column, a rotating ear, a first positioning assembly and a second positioning assembly; the column has an upper end and a lower end, the upper end of the column extends towards the main beam, and the lower end is detachably arranged on the roof of the box house; the rotating ear is arranged on the main beam and rotatably connected to the upper end of the column on a rotating axis; the first positioning assembly comprises a first stop portion and a first ratchet portion, the first stop portion is arranged on the rotating ear, and the first ratchet portion is movable relative to the first stop portion to have a first stop position formed after engagement with the first stop portion and a first release position formed after disengagement from the first stop portion, the first ratchet portion, when at the first stop position, is used to prevent the rotating ear from rotating in a first direction along the rotating axis through the first stop portion; the second positioning assembly comprises a second stop portion and a second ratchet portion, the second stop portion is arranged on the rotating ear opposite to the first stop portion, and the second ratchet portion is movable relative to the second stop portion to have a second stop position formed after engagement with the second stop portion and a second release position formed after disengagement from the second stop portion, the second ratchet portion, when at the second stop position, is used to prevent the rotating ear from rotating in a second direction along the rotating axis through the second stop portion, the first direction and the second direction are configured as two opposite directions; wherein the first ratchet portion switches to the corresponding stop position earlier than the second ratchet portion, and a cable is arranged between the two columns, two ends of the cable pass through the two columns respectively and are connected to the corresponding second ratchet portions, and a basket bolt is arranged in the middle of the cable, when an external force acts on the basket bolt, the cable pulls the two second ratchet portions to switch to the second stop position at the same time, and the two columns are kept in a relatively tight state.

2. The permanent-temporary combined photovoltaic panel installation structure according to claim 1, characterized in that, The upper end of the column is provided with a through hole, and the first ratchet portion passes through the through hole with a gap.

3. The permanent-temporary combined photovoltaic panel installation structure according to claim 2, characterized in that, An inner wall of the through hole is provided with a guide rib extending along the moving direction of the first ratchet portion to guide the movement of the first ratchet portion between the first stop position and the first release position.

4. The permanent temporary combined photovoltaic panel mounting structure according to claim 2, wherein, The through hole is detachably provided with a locking member, the locking member can be arranged on the first ratchet portion and lock the first ratchet portion in the through hole.

5. The permanent temporary combined photovoltaic panel mounting structure according to claim 1, wherein, The first stop portion and / or the second stop portion is arranged in a ring shape, and its axis is collinear with the rotating axis.

6. The permanent-temporary combined photovoltaic panel installation structure according to claim 5, wherein The first ratchet portion and / or the second ratchet portion is arranged in a ring shape, and its axis is collinear with the rotating axis.

7. The permanent-temporary combined photovoltaic panel installation structure according to claim 1, wherein An outer surface of the second ratchet portion is sleeved with a sliding block, and the sliding block is slidingly arranged on the upper end of the column.

8. The permanent-temporary combined photovoltaic panel installation structure according to claim 7, characterized in that, The upper end of the column is provided with a sliding groove, and the sliding block is slidingly arranged in the sliding groove.

9. The permanent-temporary combined photovoltaic panel installation structure according to claim 8, characterized in that, The first end of the sliding groove extends to the edge of the column, and the second end is arranged at an interval from the second stop portion. And / or The sliding block is provided with a pull ring for connecting the cable.

10. The permanent-temporary combined photovoltaic panel mounting structure according to claim 1, wherein, A plurality of secondary beams are arranged between the main beam and the photovoltaic panels, and the two ends of the secondary beams are detachably connected to the main beam and the photovoltaic panels respectively.

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