Photovoltaic module bracket and installation method

Abstract

The present invention relates to the technical field of photovoltaic supports, and discloses a photovoltaic component support and installation method. The present invention comprises: a front support, a rear support, and two steel wire ropes folded back and arranged on the front support, the front support comprises a first frame and a first winding wheel and a second winding wheel arranged on the first frame, one end of the two steel wire ropes are both wound around the second winding wheel, the rear support comprises a second frame and a main guide wheel arranged on the second frame, the other ends of the two steel wire ropes are both passed around the main guide wheel and connected to the first winding wheel, and multiple groups of connectors for installing photovoltaic panels are provided on the two steel wire ropes. The present invention can displace the installed photovoltaic panels, so that when the photovoltaic support spans an area that is difficult to access, the photovoltaic panels can be installed at the support first, and then the position can be transferred.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic brackets, and in particular to a photovoltaic component bracket and an installation method. Background Art

[0002] Photovoltaic brackets are supporting structures for installing solar photovoltaic modules, usually made of aluminum alloy or galvanized steel. These brackets are usually used to install solar photovoltaic panels on roofs, fields or other appropriate places to capture sunlight and convert it into electrical energy. In recent years, in order to adapt to more complex terrain and environment, a flexible photovoltaic bracket has emerged. It is a large-span, high-clearance, multi-span structure that uses prestressed steel wire ropes or steel strands stretched between fixed points at both ends. It can adapt to more complex terrain conditions, such as mountains, barren slopes, pools, fish ponds, etc.

[0003] At present, when installing a flexible photovoltaic bracket, the support frame for supporting the wire rope is usually installed at a predetermined position first, and then the wire rope is deployed on the support frame. Finally, the connector for fixing the photovoltaic panel is installed on the wire rope, and the photovoltaic panel is connected to the connector.

[0004] However, this installation method has certain disadvantages in actual installation. Since the stability of the photovoltaic panel needs to be ensured, the connectors and the photovoltaic panel, as well as the connectors and the wire rope need to be tightly connected. This also leads to the fact that once the area where the photovoltaic bracket is installed contains areas that are difficult for installers to access, the installation of the photovoltaic panel will increase in difficulty. For example, when the entire photovoltaic bracket spans a pool, how to conveniently and stably install the photovoltaic panel on the wire rope becomes a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a photovoltaic module bracket.

[0006] The present invention is implemented by the following technical solution: a front bracket, a rear bracket, and two steel wire ropes folded back and arranged on the two, the front bracket includes a first frame body and a first take-up wheel and a second take-up wheel arranged on the first frame body, one end of the two steel wire ropes are wound around the second take-up wheel, the rear bracket includes a second frame body and a main pulley arranged on the second frame body, the other ends of the two steel wire ropes are passed around the main pulley and connected to the first take-up wheel, and multiple groups of connecting parts for installing photovoltaic panels are provided on the two steel wire ropes, and the steel wire ropes can drive the connecting parts and the photovoltaic panels installed on the connecting parts to move by retracting and releasing the steel wire ropes through the first take-up wheel and the second take-up wheel;

[0007] The connecting member includes a frame and a two-way telescopic mechanism arranged in the frame, the bottom and top of the two-way telescopic mechanism are respectively provided with a first pulley and a limiting block, and a second pulley paired with the first pulley is provided in the frame. The wire rope passes between the first pulley and the second pulley and contacts the limiting block, so that the connecting member can be overlapped and connected with the wire rope, and the retraction and extension of the wire rope can smoothly drive the connecting member to move.

[0008] As a further improvement of the above scheme, the bidirectional telescopic mechanism includes a positive and negative internal threaded barrel rotatably installed in the frame, and the internal threads of the positive and negative internal threaded barrel are installed with two upper and lower first screws, and the two ends of the two first screws are respectively fixedly connected to the first pulley and the limiting block.

[0009] As a further improvement of the above scheme, a double-ended worm is rotatably mounted on the first frame, and worm wheels are provided on the shafts of the first winding wheel and the second winding wheel. The double-ended worm is engaged with the two worm wheels, so that the first winding wheel and the second winding wheel can rotate synchronously, so that the winding and unwinding of the wire rope can be carried out synchronously.

[0010] As a further improvement to the above solution, a first turntable is rotatably provided on the first frame, and the first turntable is connected to the double-end worm gear transmission, so that the first turntable and the double-end worm gear can be driven to rotate by the first turntable.

[0011] As a further improvement of the above scheme, two guiding wheels are provided on the first frame, and both steel ropes pass around the guiding wheels and contact the guiding wheels. Through the guiding wheels, the upper and lower spacing of the steel ropes after folding back will not be affected by too many turns wrapped around the second winding wheel.

[0012] As a further improvement of the above-mentioned solution, two tightening mechanisms are provided on the second frame to tighten the part of the wire rope on the main pulley. The tightening mechanism includes a frame and a second screw threadedly installed on the frame. A movable arc-shaped clamp is provided in the frame, and one end of the second screw is rotatably connected to the arc-shaped clamp.

[0013] As a further improvement of the above solution, an arc-shaped convex strip in contact with the wire rope is provided in the arc groove of the arc-shaped clamp, and the arc-shaped convex strip enables the arc-shaped clamp to be clamped into the rope groove of the main pulley to better tighten the wire rope.

[0014] As a further improvement of the above solution, both the first winding wheel and the second winding wheel are provided with rope threading openings, and both ends of the wire rope extend into the corresponding rope threading openings respectively. Both the first winding wheel and the second winding wheel are threadedly installed with limiting bolts for limiting the wire rope.

[0015] As a further improvement to the above solution, both the first winding wheel and the second winding wheel are hollow structures, which can not only reduce weight but also reduce wind resistance.

[0016] A photovoltaic module support installation method includes the following steps:

[0017] S1: Install the front bracket and the rear bracket at the predetermined position;

[0018] S2: Install the wire rope on the front bracket and the rear bracket;

[0019] S3: Install a corresponding number of connectors on the wire rope near the front bracket, and then install the solar photovoltaic panels on the corresponding connectors;

[0020] S4: After the previous solar photovoltaic panel is installed, use the reel to reel in and out the wire rope, allowing the transmission wire rope to drive the installed solar photovoltaic panel to move until a new connector can be installed on the wire rope near the front bracket, and repeat this process.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The front bracket composed of the first frame, the first winding wheel, the second winding wheel and other structures cooperates with the rear bracket composed of the second frame, the main wheel and other structures to reel in and unreel the wire rope, so that the wire rope can drive the connector and the photovoltaic panel installed on the connector to move, so that the connector and the photovoltaic panel can be installed near the front bracket. After the installation is completed, the position of the photovoltaic panel is moved by reeling in and out the wire rope. When the photovoltaic bracket spans an area that is difficult to access, the photovoltaic panels can be installed one by one through this method, making the installation of the photovoltaic panels simpler and more convenient.

[0023] Through the main pulley, the entire steel wire rope is arranged on the front bracket and the rear bracket in a folded manner, so that the connector used to fix the photovoltaic panel can be connected to the upper and lower folded steel wire ropes at the same time. Compared with the traditional single-layer double-wire structure, the present invention adopts a double-layer four-wire structure. Combined with the connector that can simultaneously perform upper and lower overlapping connections, it can make the photovoltaic panel more stable and more wind-resistant.

[0024] The connecting piece composed of a frame, a two-way telescopic mechanism, a first pulley, a limiting block and other structures can not only be easily installed on the wire rope, but the structural design can also perfectly adapt to the folded wire rope. When the wire rope is winding and transmitting, the transmission squares of its upper half and the lower half are completely opposite. If the connecting piece is limitedly connected to the upper and lower parts of the wire rope at the same time, the wire rope cannot normally drive the connecting piece and the photovoltaic panel arranged on the connecting piece to move. In order to solve this technical problem, the connecting piece is limitedly connected to the upper half of the wire rope and is slidably connected to the lower half of the wire rope. In this way, the wire rope can smoothly drive the connecting piece and the photovoltaic panel to move while ensuring the stable connection between the connecting piece and the wire rope.

[0025] The steel wire rope can be pressed against the main pulley by means of a tightening mechanism composed of a frame, a second screw and an arc-shaped clamp. By tightening the steel wire rope, the force point of the steel wire rope on the main pulley can be changed from one point to two points, and the pulling force F acting on the steel wire rope is differentiated from the middle section of the fold to the upper and lower ends of the arc-shaped clamp, thereby functionally changing the steel wire rope from one rope to two ropes. Even if a part of the steel wire rope breaks, the other part can still play a supporting role. Therefore, it can not only reduce the burden on the steel wire rope, but also improve the safety of the entire photovoltaic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the photovoltaic module support from a left perspective of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of the photovoltaic module support according to the present invention from a right perspective;

[0028] Figure 3 This is a front planar cross-sectional view of the photovoltaic module support of the present invention;

[0029] Figure 4 This is a separate illustration of the front bracket of the photovoltaic module bracket of the present invention;

[0030] Figure 5 This is a separate illustration of the rear bracket of the photovoltaic module bracket of the present invention;

[0031] Figure 6 This is a disassembled display diagram of the tightening mechanism;

[0032] Figure 7 This is a separate display diagram of the connector;

[0033] Figure 8 This is a plan view of the connector;

[0034] Figure 9 The following is a comparison chart of the force points involved in the wire rope under different conditions.

[0035] Description of main symbols:

[0036] 1. First frame; 2. First winding wheel; 3. Second winding wheel; 4. First turntable; 5. Double-ended worm; 6. Worm wheel; 7. Guiding wheel; 8. Second frame; 9. Leading wheel; 10. Wire rope; 11. Frame; 12. Positive and negative internal threaded barrel; 13. First screw; 14. First pulley; 15. Second pulley; 16. Limiting block; 17. Turning wheel; 18. Frame; 19. Second screw; 20. Arc-shaped clamp; 21. Positioning rod; 22. Rope threading port; 23. Limiting bolt. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] Please combine Figures 1 to 9 The photovoltaic module support includes: a front support, a rear support and two steel wire ropes 10 folded back and arranged on the two. The front support includes a first frame 1 and a first winding wheel 2 and a second winding wheel 3 arranged on the first frame 1. The first winding wheel 2 and the second winding wheel 3 are both composed of two wheel bodies and a shaft connecting the two wheel bodies. The first winding wheel 2 and the second winding wheel 3 are both hollow structures, so they can not only reduce weight but also reduce wind resistance. One end of the two steel wire ropes 10 is wound around the second winding wheel 3. The first winding wheel 2 and the second winding wheel 3 are both provided with a rope threading port 22. The two ends of the steel wire rope 10 extend to the corresponding In the rope threading port 22, the first winding wheel 2 and the second winding wheel 3 are both threadedly installed with limiting bolts 23 for limiting the steel wire rope 10. The rear bracket includes a second frame body 8 and a main driving wheel 9 arranged on the second frame body 8. The main driving wheel 9 is composed of two wheel bodies and an axle connecting the two wheel bodies. The other ends of the two steel wire ropes 10 are passed around the main driving wheel 9 and connected to the first winding wheel 2. Multiple groups of connecting parts for installing photovoltaic panels are provided on the two steel wire ropes 10. By retracting and releasing the steel wire rope 10 through the first winding wheel 2 and the second winding wheel 3, the steel wire rope 10 can drive the connecting parts and the photovoltaic panels installed on the connecting parts to move;

[0039] Please combine Figure 7 and Figure 8The connecting piece is composed of a frame 11 and a two-way telescopic mechanism arranged in the frame 11. The two-way telescopic mechanism includes a positive and negative internal threaded cylinder 12 rotatably installed in the frame 11. Notches are provided on both sides of the frame 11, so that the wire rope 10 can enter the frame 11 through the notches, and a twist wheel 17 is provided on the positive and negative internal threaded cylinder 12. The positive and negative internal threaded cylinder 12 is internally threaded with two upper and lower first screws 13. The two ends of the two first screws 13 are respectively provided with a first pulley 14 and a limiting block 16. A limiting groove is provided above the limiting block 16 and on the top wall of the frame 11. The two limiting grooves form a circular hole, and the wire rope 10 is in the circular hole and is clamped and limited. A second pulley 15 paired with the first pulley 14 is provided in the frame 11. The wire rope 10 passes between the first pulley 14 and the second pulley 15 and contacts the limiting block 16, so that the connecting piece can not only overlap and connect with the wire rope 10, but also make the retraction and extension of the wire rope 10 smoothly drive the connecting piece to move.

[0040] Through the above technical solution, the steel wire rope 10 can be wound and unwound, so that the steel wire rope 10 can drive the connector and the photovoltaic panel installed on the connector to move, so that the connector and the photovoltaic panel can be installed near the front bracket. After the installation is completed, the position of the photovoltaic panel can be moved by retracting and unreeling the steel wire rope 10, so that when the photovoltaic bracket spans an area that is difficult to access, the photovoltaic panels can be installed in sequence through this method, making the installation of the photovoltaic panels simpler and more convenient.

[0041] Please combine Figure 4 A double-ended worm 5 is rotatably mounted on the first frame 1, and worm wheels 6 are provided on the shafts of the first winding wheel 2 and the second winding wheel 3. The double-ended worm 5 is engaged with the two worm wheels 6, so that the first winding wheel 2 and the second winding wheel 3 can rotate synchronously, so that the winding and unwinding of the wire rope 10 can be carried out synchronously. A first turntable 4 is rotatably set on the first frame 1, and bevel gears are provided on the first turntable 4 and the double-ended worm 5, and the two bevel gears are engaged with each other, so that the first turntable 4 can drive the first turntable 4 and the double-ended worm 5 to rotate.

[0042] Please combine Figure 3 and Figure 4 Two guiding wheels 7 are provided on the first frame 1, and the two steel wire ropes 10 are both passed around the guiding wheels 7 and in contact with the guiding wheels 7. When all the photovoltaic panels are installed, the redundant steel wire ropes 10 are all wound on the second winding wheel 3. At this time, as the number of turns of the steel wire rope 10 wound on the second winding wheel 3 increases, the distance between the upper and lower parts of the steel wire rope 10 in this area will also change. In order to solve this problem, the guiding wheel 7 is used as the intermediate wheel of the steel wire rope 10, so that the distance between the upper and lower parts of the steel wire rope 10 can always remain consistent.

[0043] Please combine Figure 5 、 Figure 6 as well as Figure 9 The second frame 8 is provided with two tightening mechanisms to tighten the part of the wire rope 10 on the leading wheel 9. The tightening mechanism includes a frame 18 and a second screw 19 threadedly installed on the frame 18. The second screw 19 is provided with a second turntable. A movable arc-shaped clamp 20 is provided in the frame 18, and two positioning holes are provided on the arc-shaped clamp 20. Two positioning rods 21 are provided on the inner wall of the frame 18. One end of the two positioning rods 21 extends into the corresponding positioning holes and is slidably connected thereto, so that the arc-shaped clamp 20 can be smoothly displaced under the drive of the second screw 19. One end of the second screw 19 is rotatably connected to the arc-shaped clamp 20. An arc-shaped convex strip in contact with the wire rope 10 is provided in the arc groove of the arc-shaped clamp 20. The arc-shaped convex strip enables the arc-shaped clamp 20 to be stuck in the rope groove of the leading wheel 9 to better tighten the wire rope 10.

[0044] Through the above technical solution, by tightening the wire rope 10, the force points of the wire rope 10 on the main wheel 9 can be changed from one point to two points, and the pulling force F exerted on the wire rope 10 is differentiated from the middle section of the return bend to the upper and lower ends of the arc-shaped clamp 20, thereby reducing the burden on the wire rope 10.

[0045] The implementation principle of a photovoltaic module bracket in the embodiment of the present application is:

[0046] Step 1: During installation, first install the front bracket and the rear bracket to the predetermined position, then arrange the steel wire rope 10 on the two brackets, and in order to improve the stability of the entire photovoltaic bracket, bevel cables can be set on the front bracket and the rear bracket to pull each other to ensure the stability of the entire photovoltaic bracket;

[0047] The second step: through the two notches on the connector, the wire rope 10 that is folded back and divided into the upper and lower parts is respectively inserted into the frame 11 of the connector, and then the screw wheel 17 is rotated to drive the positive and negative internal threaded barrel 12 to rotate. The positive and negative internal threaded barrel 12 drives the two first screws 13 to extend up and down, and respectively drives the first pulley 14 and the limiting block 16 to move, so that the wire rope 10 at the bottom is limited between the first pulley 14 and the second pulley 15, and the wire rope 10 at the top is pressed against the top wall of the frame 11 by the limiting block 16, thereby completing the installation of the connector. The photovoltaic panel can then be installed on the connector, and each photovoltaic panel is connected to four connectors;

[0048] The third step: the first turntable 4 drives the first winding wheel 2 and the second winding wheel 3 to rotate through the double-ended worm 5 and the two worm wheels 6, so that the two rotate clockwise synchronously. In this case, the first winding wheel 2 is responsible for unwinding the wire rope 10, and the second winding wheel 3 is responsible for winding the wire rope 10, so that the entire wire rope 10 moves from left to right first, and then moves from right to left after passing through the return of the main wheel 9. In addition, since the wire rope 10 at the top is fixedly connected to the connecting piece, the wire rope 10 at the bottom is fixedly connected to the connecting piece. The first pulley 14 and the second pulley 15 are in sliding connection with the connector. Therefore, the connector and the photovoltaic panel installed on the connector will move toward the rear bracket along with the upper wire rope 10, while the lower wire rope 10 can move normally from right to left. Therefore, by manipulating the first winding wheel 2 and the second winding wheel 3, the movement of the connector and the photovoltaic panel can be controlled, so that the photovoltaic panel can be installed at the front bracket, and then it can be directly transferred through the wire rope 10 after the installation is completed.

[0049] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A photovoltaic module support, comprising: A front bracket, a rear bracket, and two steel wire ropes (10) folded back and arranged on the front bracket and the rear bracket, characterized in that the front bracket includes a first frame (1) and a first winding wheel (2) and a second winding wheel (3) arranged on the first frame (1), one end of the two steel wire ropes (10) are wound around the second winding wheel (3), the rear bracket includes a second frame (8) and a main driving wheel (9) arranged on the second frame (8), the other ends of the two steel wire ropes (10) are passed around the main driving wheel (9) and connected to the first winding wheel (2), and multiple groups of connectors for installing photovoltaic panels are provided on the two steel wire ropes (10), and the steel wire ropes (10) can be retracted and released by the first winding wheel (2) and the second winding wheel (3) to drive the connectors and the photovoltaic panels installed on the connectors to move; The connecting member includes a frame (11) and a bidirectional telescopic mechanism arranged in the frame (11), the bottom end and the top end of the bidirectional telescopic mechanism are respectively provided with a first pulley (14) and a limiting block (16), and the frame (11) is provided with a second pulley (15) matched with the first pulley (14), and the steel wire rope (10) passes between the first pulley (14) and the second pulley (15) and contacts the limiting block (16), so that the connecting member can be overlapped and connected with the steel wire rope (10), and at the same time, the retraction and extension of the steel wire rope (10) can smoothly drive the connecting member to move; The bidirectional telescopic mechanism comprises a positive and negative internal threaded barrel (12) rotatably mounted in a frame (11), wherein the positive and negative internal threaded barrel (12) is internally threaded with two upper and lower first screws (13), and the two ends of the two first screws (13) are fixedly connected to a first pulley (14) and a limiting block (16) respectively; A double-ended worm (5) is rotatably mounted on the first frame (1), and worm wheels (6) are provided on the shafts of the first winding wheel (2) and the second winding wheel (3). The double-ended worm (5) meshes with the two worm wheels (6), so that the first winding wheel (2) and the second winding wheel (3) can rotate synchronously, so that the winding and unwinding of the wire rope (10) can be carried out synchronously. A first turntable (4) is rotatably mounted on the first frame (1), and the first turntable (4) is transmission-connected to the double-ended worm (5), so that the first turntable (4) and the double-ended worm (5) can be driven to rotate by the first turntable (4). Two guiding wheels (7) are provided on the first frame (1), and both of the two wire ropes (10) pass around the guiding wheels (7) and contact with the guiding wheels (7). The guiding wheels (7) ensure that the upper and lower spacing of the wire rope (10) after folding back will not be affected by too many winding turns on the second winding wheel (3).

2. The photovoltaic module support according to claim 1, wherein: The second frame (8) is provided with two tightening mechanisms for tightening the portion of the wire rope (10) located on the leading wheel (9), the tightening mechanism comprising a frame (18) and a second screw (19) threadedly mounted on the frame (18), a movable arc-shaped clamp (20) being provided in the frame (18), and one end of the second screw (19) being rotatably connected to the arc-shaped clamp (20).

3. The photovoltaic module support according to claim 2, characterized in that: An arc-shaped convex strip in contact with the steel wire rope (10) is provided in the arc groove of the arc-shaped clamp (20). The arc-shaped convex strip enables the arc-shaped clamp (20) to be clamped into the rope groove of the main wheel (9) to better tighten the steel wire rope (10).

4. The photovoltaic module support according to claim 1, wherein: The first reel (2) and the second reel (3) are both provided with rope threading openings (22), and both ends of the steel wire rope (10) extend into the corresponding rope threading openings (22), and the first reel (2) and the second reel (3) are both threadedly mounted with limiting bolts (23) for limiting the steel wire rope (10).

5. The photovoltaic module support according to claim 1, wherein: The first winding wheel (2) and the second winding wheel (3) are both hollow structures, which can not only reduce weight but also reduce wind resistance.

6. A method for installing a photovoltaic module support according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Install the front bracket and the rear bracket at the predetermined position; S2: Install the wire rope on the front bracket and the rear bracket; S3: Install a corresponding number of connectors on the wire rope near the front bracket, and then install the solar photovoltaic panels on the corresponding connectors; S4: After the previous solar photovoltaic panel is installed, use the reel to reel in and out the wire rope, allowing the transmission wire rope to drive the installed solar photovoltaic panel to move until a new connector can be installed on the wire rope near the front bracket, and repeat this process.

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