Photovoltaic agricultural irrigation system

Abstract

The invention discloses a photovoltaic agricultural irrigation system, and relates to the technical field of photovoltaic irrigation, the photovoltaic agricultural irrigation system comprises a photovoltaic panel group rotatably arranged on a photovoltaic support, an electric box, a pump body and an irrigation pipe communicated with the output end of the pump body through an irrigation main pipe, and the photovoltaic panel group comprises a first photovoltaic panel, a second photovoltaic panel, a third photovoltaic panel and a rotating frame; a rotating frame is arranged on a photovoltaic support, a plurality of photovoltaic panels are arranged on the rotating frame, the photovoltaic panels can track sunlight to conduct angle synchronous adjustment, solar energy converted by the photovoltaic panels is stored in an energy storage battery through an electric box, and therefore a pump body can be controlled to pump water from a water storage pool to conduct drip irrigation or sprinkling irrigation on farmland; meanwhile, the second photovoltaic panel and the third photovoltaic panel which can be stored can be unfolded towards the two sides of the first photovoltaic panel to adjust the light receiving area of the first photovoltaic panel, the area, impacted by wind and rain, of the first photovoltaic panel can be reduced through relative movement folding and storage, and the safety of the second photovoltaic panel and the third photovoltaic panel is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic irrigation, in particular to a photovoltaic agricultural irrigation system. Background Art

[0002] Photovoltaic power generation, as the utilization of solar energy, is widely used in various fields. Among them, photovoltaic panels are used to receive solar energy to drive water pumps to irrigate farmland. Using photovoltaic panels for irrigation can effectively reduce irrigation costs and is an important development direction of agricultural irrigation.

[0003] At present, the main problem of photovoltaic irrigation is how to ensure the effective power generation of photovoltaic panels, that is, how to make photovoltaic panels receive enough sunlight to improve their solar energy conversion efficiency; for example, the publication number CN114258840A discloses a photovoltaic power generation irrigation device, including a water tank, two sealing cover plates are symmetrically arranged on the top of the water tank, the sealing cover plates are rotatably connected to the side walls of the water tank, and a photovoltaic panel is arranged on the top of the sealing cover plate; a worm is arranged inside the water tank, and the two ends of the worm are respectively rotatably connected to the two opposite side walls of the water tank; the outer periphery of the worm is provided with two movable plates that can move along the worm, and the two movable plates are respectively located below the two sealing cover plates; the movable plate is connected to the sealing cover plate by a support rod, and the support rod is rotatably connected to the movable plate and the sealing cover plate respectively. The photovoltaic power generation irrigation device provided by the present invention. By using the above-mentioned photovoltaic power generation irrigation device, the angle of the photovoltaic panel can be adjusted so that it can receive enough sunlight, thereby improving its solar energy conversion efficiency. However, since the angle adjustment of the above-mentioned photovoltaic panel is controlled by a bidirectional screw, when multiple photovoltaic panels are used, they cannot be folded and stored to reduce the area affected by wind and rain, especially by coastal typhoons. Therefore, the present application proposes an irrigation system with adjustable angle and storable photovoltaic panels for use in agriculture. Summary of the invention

[0004] The present invention provides a photovoltaic agricultural irrigation system, which aims to solve the problem that the photovoltaic panels mentioned above cannot be folded and stored to reduce the area affected by wind and rain when multiple photovoltaic panels are used because their angle adjustment is controlled by a bidirectional screw.

[0005] To achieve the above object, the present invention provides a photovoltaic agricultural irrigation system, comprising:

[0006] The photovoltaic panel group is rotatably mounted on the photovoltaic bracket to adjust the angle at which it receives sunlight, and can be slid, unfolded and stored on the photovoltaic bracket to adjust the area at which it receives sunlight;

[0007] An electrical box, in which a control system and an energy storage battery are arranged, the control system is electrically connected to the energy storage battery, and the photovoltaic panel is electrically connected to the control system;

[0008] The pump body is electrically connected to the control system, and the input end of the pump body is connected to the water reservoir through a pipeline;

[0009] The irrigation pipe is connected to the output end of the pump body through the irrigation main pipe to pump water in the reservoir to the irrigation pipe laid in the farmland for drip irrigation or sprinkler irrigation.

[0010] Preferably, the photovoltaic panel group includes a first photovoltaic panel, a second photovoltaic panel, a third photovoltaic panel and a rotating frame, the rotating frame is rotatably arranged on the photovoltaic bracket, the first photovoltaic panel is fixedly arranged on the upper end of the rotating frame, and the second photovoltaic panel and the third photovoltaic panel are slidably arranged on the rotating frame and are located below the first photovoltaic panel. A first driving motor for driving the rotating frame to rotate is arranged on one side of the photovoltaic bracket, and the output end of the first driving motor is connected to the rotating shaft of the rotating frame through a coupling or a reducer; a sunlight tracking sensor is arranged on the photovoltaic bracket, and the first driving motor and the sunlight tracking sensor are electrically connected to the control system respectively.

[0011] Preferably, a first moving wheel is provided at both ends of the second photovoltaic panel, a second moving wheel is provided at both ends of the second photovoltaic panel, a tensioning wheel and a driving wheel are rotatably provided on the rotating frame, a transmission component is sleeved on the first moving wheel, the second moving wheel, the tensioning wheel and the driving wheel, the transmission component is connected to the first moving wheel and the second moving wheel through a fixing component, a second driving motor is provided on the rotating frame, and the output end of the second driving motor is connected to the driving wheel through a coupling or a reducer, so that the driving wheel drives the transmission component to drive the first moving wheel and the second moving wheel to perform a linear relative motion in the rotating frame, thereby driving the second photovoltaic panel and the third photovoltaic panel to unfold to both sides of the first photovoltaic panel. A first limiting roller is coaxially connected to the first moving wheel, and a second limiting roller is coaxially connected to the second moving wheel; a first limiting groove for limiting the first moving wheel and the second moving wheel, and a second limiting groove for limiting the first limiting roller and the second limiting roller are provided on the rotating frame, and the first limiting groove is connected to the second limiting groove; the tensioning wheel and the driving wheel are located in the first limiting groove.

[0012] Preferably, it also includes a first storage rack and a second storage rack, one end of the first storage rack is hinged to the two ends of one side of the rotating rack, and the other end of the first storage rack is slidably connected to one side of the second photovoltaic panel through a pulley; one end of the second storage rack is hinged to the two ends of the other side of the rotating rack, and the other end of the second storage rack is slidably connected to one side of the third photovoltaic panel through a pulley.

[0013] Preferably, the transmission component is a chain or a belt, and the chain or the belt is fixed to the first moving wheel and the second moving wheel by a pin.

[0014] Preferably, a mobile cleaning mechanism for cleaning the surface is provided on the first photovoltaic panel, and a first brush plate is provided on one side of the bottom surface of the first photovoltaic panel and one side of the bottom surface of the second photovoltaic panel. The first brush plate contacts the surface of the second photovoltaic panel and the surface of the third photovoltaic panel respectively, so that the second photovoltaic panel and the third photovoltaic panel can clean the surface through relative movement; a second brush plate is provided on the horizontal frame. The mobile cleaning mechanism includes a cleaning motor, a rolling frame, a wire wheel, a wire pull wheel, a wire pull and a horizontal frame. The cleaning motor is provided on one side of the first photovoltaic panel through a bracket, and the wire wheel is connected to the output end of the cleaning motor; the wire pull wheel is provided on the other side of the first photovoltaic panel through an installation frame, and the horizontal frame is slidably provided on the side end of the first photovoltaic panel through a rolling frame, and the wire pull is wound around the wire wheel and the wire pull wheel, and the wire pull is fixedly connected to the rolling frame. A rain sensor is provided on the bracket, and the cleaning motor and the rain sensor are electrically connected to the control system respectively.

[0015] Compared with the prior art, it has the following beneficial effects:

[0016] The present application arranges a rotating frame on the photovoltaic bracket, and arranges multiple photovoltaic panels on the rotating frame, so that the multiple photovoltaic panels can track sunlight and adjust their angles synchronously, and rely on an electric box to store the solar energy converted by the photovoltaic panels in an energy storage battery, so as to control the pump body to draw water from the reservoir to perform drip irrigation or sprinkler irrigation on the farmland; at the same time, the retractable second photovoltaic panel and the third photovoltaic panel can be unfolded to both sides of the first photovoltaic panel to adjust their light-receiving area, and can be folded and stored through relative movement to reduce their area impacted by wind and rain, thereby effectively improving their safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a photovoltaic agricultural irrigation system for this application;

[0019] Figure 2 A schematic diagram of a photovoltaic panel assembly for this application;

[0020] Figure 3 This is a bottom schematic diagram of the photovoltaic panel group of this application;

[0021] Figure 4 A schematic diagram of a photovoltaic panel assembly for this application;

[0022] Figure 5 For this application Figure 4 A local enlarged schematic diagram;

[0023] Figure 6 For this application Figure 4 B is a partial enlarged schematic diagram;

[0024] Figure 7 A schematic diagram of a photovoltaic panel assembly for this application;

[0025] Figure 8 Schematic diagram of the second photovoltaic panel and the third photovoltaic panel of the present application;

[0026] Fig. 9 A schematic diagram of the first storage rack and the second storage rack of the present application;

[0027] Fig.10 A schematic diagram of the first storage rack and the second storage rack of the present application;

[0028] Fig.11 For this application Fig.10 A local enlarged schematic diagram of C;

[0029] Fig.12 A schematic diagram of the first photovoltaic panel of the present application;

[0030] Fig.13 For this application Fig.12 A local enlarged schematic diagram of D;

[0031] Fig.14 This is a bottom schematic diagram of the photovoltaic panel group of this application;

[0032] Fig.15 For this application Fig.14 A local enlarged schematic diagram of E;

[0033] Fig.16 This is a schematic diagram of the position of the first brush plate of this application;

[0034] Fig.17 Schematic diagram of photovoltaic bracket and rotating frame for this application;

[0035] Fig.18 For this application Fig.17 A local enlarged schematic diagram of F;

[0036] Fig.19 This is a schematic diagram of the position of the auxiliary tensioner in this application.

[0037] Figure markings: 1-photovoltaic panel group; 11-first photovoltaic panel; 12-second photovoltaic panel; 13-third photovoltaic panel; 14-rotating frame; 15-first drive motor; 16-first brush plate; 101-first moving wheel; 102-second moving wheel; 103-tensioning wheel; 104-driving wheel; 105-transmission component; 106-second driving motor; 107-first limiting roller; 108-second limiting roller; 109-auxiliary tensioning wheel; 141-first limiting groove; 142-second limiting groove; 2-photovoltaic bracket; 3-electric box; 4-pump body; 5-irrigation pipe; 6-first storage rack; 7-second storage rack; 8-mobile cleaning mechanism; 81-cleaning motor; 82-rolling frame; 83-wire wheel; 84-wire wheel; 85-wire; 86-cross frame; 87-second brush plate; 9-rain sensor; 10-longitudinal beam. DETAILED DESCRIPTION

[0038] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:

[0039] Example:

[0040] like Figure 1 and Figure 2 As shown, the present invention provides a photovoltaic agricultural irrigation system, comprising:

[0041] The photovoltaic panel group 1 is rotatably mounted on the photovoltaic support 2 to adjust the angle at which it receives sunlight, and can be slidably unfolded and stored on the photovoltaic support 2 to adjust the area at which it receives sunlight;

[0042] An electrical box 3, in which a control system and an energy storage battery are arranged, the control system is electrically connected to the energy storage battery, and the photovoltaic panel is electrically connected to the control system, so as to control the operation of the photovoltaic panel through the control system;

[0043] The pump body 4 is electrically connected to the control system, and the input end of the pump body 4 is connected to the water reservoir through a pipeline, so that the control system can control the operation of the pump body 4;

[0044] The irrigation pipe 5 is connected to the output end of the pump body 4 through the irrigation main pipe, so as to pump the water in the reservoir to the irrigation pipe 5 arranged in the farmland for drip irrigation or sprinkler irrigation.

[0045] The present application absorbs sunlight through a photovoltaic panel group 1 to convert solar energy into electrical energy and store it in an energy storage battery, and controls the operation of a pump body 4 through a control system in an electrical box 3 to pump water in a reservoir to an irrigation pipe 5 laid in the farmland for drip irrigation or sprinkler irrigation.

[0046] See also Figures 2 to 4The photovoltaic panel group 1 of the present application includes a first photovoltaic panel 11, a second photovoltaic panel 12, a third photovoltaic panel 13 and a rotating frame 14, the rotating frame 14 is rotatably arranged on the photovoltaic bracket 2, the first photovoltaic panel 11 is fixedly arranged on the upper end of the rotating frame 14, the second photovoltaic panel 12 and the third photovoltaic panel 13 are slidably arranged on the rotating frame 14 and are located below the first photovoltaic panel 11; the first photovoltaic panel 11, the second photovoltaic panel 12, and the third photovoltaic panel 13 are installed on the rotating frame 14 in a stacked manner, and the second photovoltaic panel 12 and the third photovoltaic panel 13 can be unfolded and stored along both sides on the rotating frame 14 to expand and reduce the light receiving area of ​​the photovoltaic panel.

[0047] See also Figure 2 , a first drive motor 15 for driving the rotating frame 14 to rotate is provided on one side of the photovoltaic support 2 of the present application, and the output end of the first drive motor 15 is connected to the rotating shaft of the rotating frame 14 through a coupling or a reducer; a sunlight tracking sensor is provided on the photovoltaic support 2, and the first drive motor 15 and the sunlight tracking sensor are respectively electrically connected to the control system to obtain the illumination angle through the sunlight tracking sensor, so that the control system controls the first drive motor 15 to rotate the rotating frame 14 to adjust the angle of the photovoltaic panel, so that it can adjust its angle according to the illumination angle. Furthermore, the first drive motor 15 of the present application is a self-locking motor.

[0048] See also Figures 4 to 6 as well as Figures 17 to 19 , the first moving wheels 101 are arranged at both ends of the second photovoltaic panel 12 of the present application, the second moving wheels 102 are arranged at both ends of the second photovoltaic panel 12, the tensioning wheel 103 and the driving wheel 104 are rotatably arranged on the rotating frame 14, the first moving wheel 101, the second moving wheel 102, the tensioning wheel 103 and the driving wheel 104 are sleeved with a transmission component 105, the transmission component 105 is connected to the first moving wheel 101 and the second moving wheel 102 through a fixing component, and the rotating frame 14 is provided with a second driving motor 106, the output end of the second driving motor 106 is connected to the driving wheel 104 through a coupling or a reducer, so that the driving wheel 104 drives the transmission component 105 to drive the first moving wheel 101 and the second moving wheel 102 to perform a linear relative motion in the rotating frame 14, thereby driving the second photovoltaic panel 12 and the third photovoltaic panel 13 to unfold to both sides of the first photovoltaic panel 11. The second driving motor 106 is a self-locking motor.

[0049] See also Figure 5The transmission component 105 of the present application is a chain or a belt, which is fixed to the first moving wheel 101 and the second moving wheel 102 by a latch. By setting the transmission component 105 and fixing the transmission component 105 to the first moving wheel 101 and the second moving wheel 102, the driving wheel 104 drives the transmission component 105 to move under the drive of the second driving motor 106, so that the first moving wheel 101 and the second moving wheel 102 perform a linear relative motion, thereby causing the second photovoltaic panel 12 and the third photovoltaic panel 13 to move relative to each other to be unfolded or stored.

[0050] Further, see Fig.19 In order to ensure that the transmission component 105 still maintains the tension after the first moving wheel 101 and the second moving wheel 102 move to unfold the second photovoltaic panel 12 and the third photovoltaic panel 13, auxiliary tensioning wheels 109 can be set on both sides of the rotating frame 14, so that when the first moving wheel 101 and the second moving wheel 102 move to any position, the power transmission component 105 still maintains the tension, so that the driving wheel 104 and the transmission component 105 are closely matched and do not disengage, thereby ensuring its driving force.

[0051] See also Figure 5 and Figure 6 as well as Fig.18 and Fig.19 , the first moving wheel 101 of the present application is coaxially connected with a first limiting roller 107, and the second moving wheel 102 is coaxially connected with a second limiting roller 108; the rotating frame 14 is provided with a first limiting groove 141 for limiting the first moving wheel 101 and the second moving wheel 102, and a second limiting groove 142 for limiting the first limiting roller 107 and the second limiting roller 108, and the first limiting groove 141 is connected with the second limiting groove 142; the tensioning wheel 103 and the driving wheel 104 are located in the first limiting groove 141 to limit the tensioning wheel 103 and the driving wheel 104. Further, the first moving wheel 101 and the second moving wheel 102 are fixed and do not rotate, so that the transmission component 105 fixed thereon can drive the first moving wheel 101 and the second moving wheel 102 to perform linear motion under the drive of the driving wheel 104.

[0052] See also Figures 7 to 11 The photovoltaic panel group 1 of the present application further includes a first storage rack 6 and a second storage rack 7. One end of the first storage rack 6 is hinged to the two ends of one side of the rotating rack 14, and the other end of the first storage rack 6 is slidably connected to the longitudinal beam 10 of one side of the second photovoltaic panel 12 through a pulley; one end of the second storage rack 7 is hinged to the two ends of the other side of the rotating rack 14, and the other end of the second storage rack 7 is slidably connected to the longitudinal beam 10 of one side of the third photovoltaic panel 13 through a pulley. The first storage rack 6 and the second storage rack 7 are provided to support the ends of the unfolded second photovoltaic panel 12 and the third photovoltaic panel 13 to improve their unfolding strength.

[0053] See also Figures 12 to 15 In the present application, a mobile cleaning mechanism 8 for cleaning the surface is provided on the first photovoltaic panel 11, and a first brush plate 16 is provided on one side of the bottom surface of the first photovoltaic panel 11 and one side of the bottom surface of the second photovoltaic panel 12. The first brush plate 16 contacts the surface of the second photovoltaic panel 12 and the surface of the third photovoltaic panel 13 respectively, so that the second photovoltaic panel 12 and the third photovoltaic panel 13 can be cleaned by relative movement; a second brush plate 87 is provided on the horizontal frame 86 to clean the surface of the first photovoltaic panel 11 through the second brush plate 87.

[0054] Further, see Fig.16 The first brush plate 16 is spread out to both sides through the second photovoltaic panel 12 and the third photovoltaic panel 13 to clean the surfaces of the second photovoltaic panel 12 and the third photovoltaic panel 13. Further, the ends of the first brush plate 16 and the second brush plate 87 are provided with flexible brushes to clean the surfaces of the photovoltaic panels.

[0055] See also Figures 12 to 15 The mobile cleaning mechanism 8 of the present application includes a cleaning motor 81, a rolling frame 82, a wire wheel 83, a wire pull wheel 84, a wire pull 85 and a horizontal frame 86. The cleaning motor 81 is arranged on one side of the first photovoltaic panel 11 through a bracket, and the wire wheel 83 is connected to the output end of the cleaning motor 81; the wire pull wheel 84 is arranged on the other side of the first photovoltaic panel 11 through an installation frame, and the horizontal frame 86 is slidably arranged on the side end of the first photovoltaic panel 11 through the rolling frame 82. The wire pull 85 is wound around the wire wheel 83 and the wire pull wheel 84, and the wire pull 85 is fixedly connected to the rolling frame 82, so that the cleaning motor 81 can drive the wire wheel 83 to drive the wire pull 85 to move in the longitudinal beam 10, so that the rolling frame 82 connected to the wire wheel 83 can move on the longitudinal beam 10 through the rolling wheels arranged up and down. Further, the wire pull 85 can be replaced by a chain or a transmission belt.

[0056] See also Figure 2 A rain sensor 9 is provided on the bracket of the present application, and the cleaning motor 81 and the rain sensor 9 are electrically connected to the control system respectively; by providing the rain sensor 9, when it rains, the rain sensor 9 turns on the circuit path of the cleaning motor 81, so that the driving wire wheel 83 drives the pulley 85 to move, so that the rolling frame 82 moves on the longitudinal beams on both sides of the first photovoltaic panel 11, so as to drive the cross frame 86 to move on the surface of the first photovoltaic panel 11, so that the second brush plate 87 on the cross frame 86 cleans the surface of the first photovoltaic panel 11.

[0057] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A photovoltaic agricultural irrigation system, characterized in that: include: A photovoltaic panel group (1) is rotatably mounted on a photovoltaic support (2) to adjust the angle at which it receives sunlight, and can be slidably unfolded and retracted on the photovoltaic support (2) to adjust the area at which it receives sunlight; An electrical box (3), wherein a control system and an energy storage battery are arranged in the electrical box (3), the control system is electrically connected to the energy storage battery, and the photovoltaic panel is electrically connected to the control system; A pump body (4) is electrically connected to the control system, and an input end of the pump body (4) is connected to the water reservoir through a pipeline; The irrigation pipe (5) is connected to the output end of the pump body (4) through the irrigation main pipe, so as to pump water in the water reservoir to the irrigation pipe (5) arranged in the farmland for drip irrigation or sprinkler irrigation.

2. The photovoltaic agricultural irrigation system according to claim 1, characterized in that: The photovoltaic panel group (1) comprises a first photovoltaic panel (11), a second photovoltaic panel (12), a third photovoltaic panel (13) and a rotating frame (14); the rotating frame (14) is rotatably mounted on the photovoltaic support (2); the first photovoltaic panel (11) is fixedly mounted on the upper end of the rotating frame (14); the second photovoltaic panel (12) and the third photovoltaic panel (13) are slidably mounted on the rotating frame (14) and are located below the first photovoltaic panel (11).

3. The photovoltaic agricultural irrigation system according to claim 2, characterized in that: A first drive motor (15) for driving the rotating frame (14) to rotate is arranged on one side of the photovoltaic support (2), and an output end of the first drive motor (15) is connected to the rotating shaft of the rotating frame (14) through a coupling or a reducer; a sunlight tracking sensor is arranged on the photovoltaic support (2), and the first drive motor (15) and the sunlight tracking sensor are electrically connected to the control system respectively.

4. The photovoltaic agricultural irrigation system according to claim 2, characterized in that: The first moving wheels (101) are arranged at both ends of the second photovoltaic panel (12), the second moving wheels (102) are arranged at both ends of the second photovoltaic panel (12), a tensioning wheel (103) and a driving wheel (104) are rotatably arranged on the rotating frame (14), the first moving wheel (101), the second moving wheel (102), the tensioning wheel (103) and the driving wheel (104) are sleeved with a transmission component (105), and the transmission component (105) is connected to the first moving wheel (101) and the second moving wheel (102) via a fixing portion. The rotating frame (14) is connected with a second driving motor (106), and the output end of the second driving motor (106) is connected to the driving wheel (104) through a coupling or a reducer, so that the driving wheel (104) drives the transmission component (105) to drive the first moving wheel (101) and the second moving wheel (102) to perform linear relative motion in the rotating frame (14), thereby driving the second photovoltaic panel (12) and the third photovoltaic panel (13) to unfold to both sides of the first photovoltaic panel (11).

5. The photovoltaic agricultural irrigation system according to claim 2, characterized in that: It also includes a first storage rack (6) and a second storage rack (7), wherein one end of the first storage rack (6) is hinged to the two ends of one side of the rotating rack (14), and the other end of the first storage rack (6) is slidably connected to one side of the second photovoltaic panel (12) via a pulley; one end of the second storage rack (7) is hinged to the two ends of the other side of the rotating rack (14), and the other end of the second storage rack (7) is slidably connected to one side of the third photovoltaic panel (13) via a pulley.

6. The photovoltaic agricultural irrigation system according to claim 4, characterized in that: A first limiting roller (107) is coaxially connected to the first moving wheel (101), and a second limiting roller (108) is coaxially connected to the second moving wheel (102); a first limiting groove (141) for limiting the first moving wheel (101) and the second moving wheel (102), and a second limiting groove (142) for limiting the first limiting roller (107) and the second limiting roller (108) are provided on the rotating frame (14), and the first limiting groove (141) is communicated with the second limiting groove (142); the tensioning wheel (103) and the driving wheel (104) are located in the first limiting groove (141).

7. The photovoltaic agricultural irrigation system according to claim 4, characterized in that: The transmission component (105) is a chain or a belt, and the chain or the belt is fixed to the first moving wheel (101) and the second moving wheel (102) via a latch.

8. The photovoltaic agricultural irrigation system according to claim 2, characterized in that: The first photovoltaic panel (11) is provided with a movable cleaning mechanism (8) for cleaning the surface, and a first brush plate (16) is provided on one side of the bottom surface of the first photovoltaic panel (11) and one side of the bottom surface of the second photovoltaic panel (12), and the first brush plate (16) is in contact with the surface of the second photovoltaic panel (12) and the surface of the third photovoltaic panel (13) respectively, so that the second photovoltaic panel (12) and the third photovoltaic panel (13) can be cleaned by relative movement.

9. The photovoltaic agricultural irrigation system according to claim 8, characterized in that: The mobile cleaning mechanism (8) comprises a cleaning motor (81), a rolling frame (82), a wire wheel (83), a wire pulling wheel (84), a wire pulling wire (85) and a cross frame (86); the cleaning motor (81) is arranged on one side of the first photovoltaic panel (11) through a bracket, and the wire wheel (83) is connected to the output end of the cleaning motor (81); the wire pulling wheel (84) is arranged on the other side of the first photovoltaic panel (11) through an installation frame, and the cross frame (86) is slidably arranged on the side end of the first photovoltaic panel (11) through the rolling frame (82); the wire pulling wire (85) is wound around the wire wheel (83) and the wire pulling wheel (84), and the wire pulling wire (85) is fixedly connected to the rolling frame (82); and a second brush plate (87) is arranged on the cross frame (86).

10. The photovoltaic agricultural irrigation system according to claim 9, characterized in that: A rain sensor (9) is provided on the bracket, and the cleaning motor (81) and the rain sensor (9) are electrically connected to the control system respectively.

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