A photovoltaic agricultural irrigation system

Abstract

The application 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 in communication with the output end of the pump body through an irrigation main pipe. The photovoltaic panel group comprises a first photovoltaic panel, a second photovoltaic panel, a third photovoltaic panel, and a rotating frame. The rotating frame is arranged on the photovoltaic support, and a plurality of photovoltaic panels are arranged on the rotating frame. The plurality of photovoltaic panels can track sunlight and synchronously adjust the angle. The electric box is used for storing the solar energy converted by the photovoltaic panels in an energy storage battery, so that the pump body can be controlled to pump water from a water storage pool to drip irrigation or sprinkler irrigation on farmland. Meanwhile, the second photovoltaic panel and the third photovoltaic panel can be folded and stored, can be unfolded to the two sides of the first photovoltaic panel to adjust the light receiving area of the first photovoltaic panel, and can be folded and stored through relative movement to reduce the area impacted by wind and rain, thereby effectively improving the safety.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic irrigation technology, specifically a photovoltaic agricultural irrigation system. Background Technology

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

[0003] Currently, the main problem in photovoltaic irrigation is how to ensure the effective power generation of photovoltaic panels, that is, how to ensure that the photovoltaic panels can receive enough sunlight to improve their solar energy conversion efficiency. For example, CN114258840A discloses a photovoltaic power generation irrigation device, including a water tank. Two sealing covers are symmetrically arranged on the top of the water tank, and the sealing covers are rotatably connected to the side walls of the water tank. A photovoltaic panel is located on top of the sealing covers. A worm gear is provided inside the water tank, and the two ends of the worm gear are rotatably connected to the two opposite side walls of the water tank. Two movable plates are provided on the outer periphery of the worm gear, which can move along the worm gear. The two movable plates are located below the two sealing covers. The movable plates and the sealing covers are connected by support rods, and the support rods are rotatably connected to the movable plates and the sealing covers respectively. This invention provides a photovoltaic power generation irrigation device. The aforementioned photovoltaic power generation irrigation device enables the adjustment of the photovoltaic panel angle to receive sufficient sunlight, thereby improving its solar energy conversion efficiency. However, since the angle adjustment of the photovoltaic panel is controlled by a bidirectional screw, multiple photovoltaic panels cannot be folded and stored to reduce their area exposed to wind and rain, especially coastal typhoons. Therefore, this application proposes an adjustable-angle and retractable photovoltaic panel system for agricultural irrigation. Summary of the Invention

[0004] This invention provides a photovoltaic agricultural irrigation system, which aims to solve the problem that, since the angle adjustment of the photovoltaic panels is controlled by a bidirectional screw, multiple photovoltaic panels cannot be folded and stored to reduce their area affected by wind and rain.

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

[0006] The photovoltaic panel assembly is rotatably mounted on the photovoltaic support to adjust the angle at which it receives sunlight, and it can be slid out and retracted on the photovoltaic support to adjust the area of ​​sunlight it receives;

[0007] The electrical box contains a control system and an energy storage battery. 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 storage tank through a pipeline;

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

[0010] Preferably, the photovoltaic panel assembly includes a first photovoltaic panel, a second photovoltaic panel, a third photovoltaic panel, and a rotating frame. The rotating frame is rotatably mounted on the photovoltaic support, the first photovoltaic panel is fixedly mounted on the upper end of the rotating frame, and the second and third photovoltaic panels are slidably mounted on the rotating frame and located below the first photovoltaic panel. A first drive motor for driving the rotating frame to rotate is provided on one side of the photovoltaic support, and the output end of the first drive motor is connected to the rotating shaft of the rotating frame through a coupling or a reducer. A solar tracking sensor is provided on the photovoltaic support, and the first drive motor and the solar tracking sensor are electrically connected to the control system.

[0011] Preferably, the second photovoltaic panel has first moving wheels at both ends and second moving wheels at both ends. A tensioning wheel and a drive wheel are rotatably mounted on the rotating frame. Transmission components are fitted onto the first moving wheels, second moving wheels, tensioning wheels, and drive wheels. These transmission components are connected to the first and second moving wheels via fixed components. A second drive motor is mounted on the rotating frame. The output end of the second drive motor is connected to the drive wheel via a coupling or reducer, so that the drive wheel drives the transmission components to move the first and second moving wheels in a linear relative motion within the rotating frame, thereby driving the second and third photovoltaic panels to unfold towards 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. The rotating frame has a first limiting groove for limiting the first and second moving wheels, and a second limiting groove for limiting the first and second limiting rollers. The first limiting groove and the second limiting groove communicate with each other. The tensioning wheel and drive wheel are located within the first limiting groove.

[0012] Preferably, it further includes a first storage rack and a second storage rack. One end of the first storage rack is hinged to both ends of one side of the rotating frame, and the other end of the first storage rack is slidably connected to one side of the second photovoltaic panel via pulleys. One end of the second storage rack is hinged to both ends of the other side of the rotating frame, and the other end of the second storage rack is slidably connected to one side of the third photovoltaic panel via pulleys.

[0013] Preferably, the transmission component is a chain or belt, which is fixed to the first and second movable wheels by pins.

[0014] Preferably, a movable cleaning mechanism for cleaning the surface is provided on the first photovoltaic panel. 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 surfaces of the second and third photovoltaic panels respectively, so that the second and third photovoltaic panels clean the surfaces through relative movement. A second brush plate is provided on the crossbeam. The movable cleaning mechanism includes a cleaning motor, a rolling frame, a reel, a pull reel, a pull line, and a crossbeam. The cleaning motor is mounted on one side of the first photovoltaic panel via a bracket, and the reel is connected to the output end of the cleaning motor. The pull reel is mounted on the other side of the first photovoltaic panel via a mounting bracket. The crossbeam is slidably mounted on the side end of the first photovoltaic panel via the rolling frame. The pull line is wound around the reel and the pull reel, and the pull line 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.

[0015] Compared with existing technologies, it has the following beneficial effects:

[0016] This application involves installing a rotating frame on a photovoltaic support structure, and mounting multiple photovoltaic panels on the rotating frame. These panels can be synchronously adjusted to track sunlight, and the solar energy converted by the photovoltaic panels is stored in an energy storage battery via an electrical box. This allows for the control of a pump to draw water from a reservoir for drip or sprinkler irrigation of farmland. Simultaneously, the retractable second and third photovoltaic panels can be extended to the sides of the first photovoltaic panel to adjust their light-receiving area. They can also be folded and stored using relative movement to reduce their exposure to wind and rain, effectively improving their safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a photovoltaic agricultural irrigation system according to this application;

[0019] Figure 2 This is a schematic diagram of the photovoltaic panel assembly of this application;

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

[0021] Figure 4 This is a schematic diagram of the photovoltaic panel assembly of this application;

[0022] Figure 5 For this application Figure 4 A magnified view of part A;

[0023] Figure 6 For this application Figure 4 A magnified view of part B;

[0024] Figure 7 This is a schematic diagram of the photovoltaic panel assembly of this application;

[0025] Figure 8 This is a schematic diagram of the second and third photovoltaic panels of this application;

[0026] Figure 9 This is a schematic diagram of the first and second storage racks in this application;

[0027] Figure 10 This is a schematic diagram of the first and second storage racks in this application;

[0028] Figure 11 For this application Figure 10 A magnified view of part C;

[0029] Figure 12 This is a schematic diagram of the first photovoltaic panel of this application;

[0030] Figure 13 For this application Figure 12 A magnified schematic diagram of part D;

[0031] Figure 14 This is a schematic diagram of the bottom of the photovoltaic panel assembly in this application;

[0032] Figure 15 For this application Figure 14 A magnified view of part E;

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

[0034] Figure 17 This is a schematic diagram of the photovoltaic support and rotating frame of this application;

[0035] Figure 18 For this application Figure 17 A magnified schematic diagram of part of F;

[0036] Figure 19 This is a schematic diagram showing the position of the secondary tensioner in this application.

[0037] Reference numerals: 1-Photovoltaic panel assembly; 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-Drive wheel; 105-Transmission component; 106-Second drive motor; 107-First limiting roller; 108-Second limiting roller; 109-Secondary tensioning roller; 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-Thread wheel; 84-Thread wheel; 85-Thread; 86-Horizontal frame; 87-Second brush plate; 9-Rain sensor; 10-Longitudinal beam. Detailed Implementation

[0038] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[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 assembly 1 is rotatably mounted on the photovoltaic support 2 to adjust the angle at which it receives sunlight, and can be slid out and retracted on the photovoltaic support 2 to adjust the area of ​​sunlight it receives;

[0042] Electrical box 3 contains a control system and an energy storage battery. The control system is electrically connected to the energy storage battery, and the photovoltaic panel is electrically connected to the control system so that the operation of the photovoltaic panel can be controlled by the control system.

[0043] Pump body 4 is electrically connected to the control system. The input end of pump body 4 is connected to the water storage tank through a pipeline so that the control system can control the operation of pump body 4.

[0044] The irrigation pipe 5 is connected to the output end of the pump body 4 through the main irrigation pipe to pump water from the water storage tank to the irrigation pipe 5 laid in the farmland for drip irrigation or sprinkler irrigation.

[0045] This application uses photovoltaic panel 1 to absorb sunlight, convert solar energy into electrical energy and store it in a storage battery, and uses a control system in electrical box 3 to control the operation of pump body 4 to pump water from the storage tank to irrigation pipe 5 laid in the farmland for drip irrigation or sprinkler irrigation.

[0046] See Figures 2 to 4The photovoltaic panel assembly 1 of this 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 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 located below the first photovoltaic panel 11. The first photovoltaic panel 11, the second photovoltaic panel 12, and the third photovoltaic panel 13 are stacked on the rotating frame 14. The second photovoltaic panel 12 and the third photovoltaic panel 13 can be unfolded and folded along both sides of the rotating frame 14 to expand and shrink the light-receiving area of ​​the photovoltaic panel.

[0047] See Figure 2 The photovoltaic support 2 of this application has a first drive motor 15 on one side for driving the rotating frame 14 to rotate. The output end of the first drive motor 15 is connected to the rotating shaft of the rotating frame 14 through a coupling or reducer. A solar tracking sensor is installed on the photovoltaic support 2. The first drive motor 15 and the solar tracking sensor are electrically connected to the control system to obtain the illumination angle through the solar tracking sensor. This allows the control system to control the first drive motor 15 to rotate the rotating frame 14 to adjust the angle of the photovoltaic panel, enabling it to adjust its angle according to the illumination angle. Furthermore, the first drive motor 15 of this application is a self-locking motor.

[0048] See Figures 4 to 6 as well as Figures 17 to 19 In this application, the second photovoltaic panel 12 has first moving wheels 101 and second moving wheels 102 at both ends. A tension wheel 103 and a drive wheel 104 are rotatably mounted on the rotating frame 14. A transmission component 105 is fitted onto the first moving wheels 101, second moving wheels 102, tension wheel 103, and drive wheel 104. The transmission component 105 is connected to the first moving wheels 101 and second moving wheels 102 via a fixing component. A second drive motor 106 is mounted on the rotating frame 14. The output end of the second drive motor 106 is connected to the drive wheel 104 via a coupling or reducer, so that the drive wheel 104 drives the transmission component 105 to drive the first moving wheels 101 and second moving wheels 102 to perform linear relative motion within the rotating frame 14, thereby driving the second photovoltaic panel 12 and the third photovoltaic panel 13 to unfold towards both sides of the first photovoltaic panel 11. The second drive motor 106 is a self-locking motor.

[0049] See Figure 5The transmission component 105 in this application is a chain or belt, which is fixed to the first moving wheel 101 and the second moving wheel 102 by pins. By setting the transmission component 105 and fixing it to the first moving wheel 101 and the second moving wheel 102, the drive wheel 104, driven by the second drive motor 106, drives the transmission component 105 to move, so that the first moving wheel 101 and the second moving wheel 102 perform linear relative movement, thereby causing the second photovoltaic panel 12 and the third photovoltaic panel 13 to move relative to each other on both sides to unfold or retract.

[0050] Further, see Figure 19 In order to ensure that the transmission component 105 maintains 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 the transmission component 105 maintains tension when the first moving wheel 101 and the second moving wheel 102 move to any position, so that the drive wheel 104 and the transmission component 105 can be tightly engaged and not disengaged, thereby ensuring its driving force.

[0051] See Figure 5 and Figure 6 as well as Figure 18 and Figure 19 In this application, 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. 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. The first limiting groove 141 communicates with the second limiting groove 142. The tensioning wheel 103 and the drive wheel 104 are located within the first limiting groove 141 to limit their movement. Furthermore, the first moving wheel 101 and the second moving wheel 102 are fixed and do not rotate, allowing the transmission component 105 fixed on them to drive the first moving wheel 101 and the second moving wheel 102 to perform linear motion under the drive of the drive wheel 104.

[0052] See Figures 7 to 11 The photovoltaic panel assembly 1 of this application also includes a first storage rack 6 and a second storage rack 7. One end of the first storage rack 6 is hinged to both ends of one side of the rotating frame 14, and the other end of the first storage rack 6 is slidably connected to one side longitudinal beam 10 of the second photovoltaic panel 12 via pulleys. One end of the second storage rack 7 is hinged to both ends of the other side of the rotating frame 14, and the other end of the second storage rack 7 is slidably connected to one side longitudinal beam 10 of the third photovoltaic panel 13 via pulleys. By setting the first storage rack 6 and the second storage rack 7, the ends of the unfolded second photovoltaic panel 12 and the third photovoltaic panel 13 are supported to improve their unfolded strength.

[0053] See Figures 12 to 15 The first photovoltaic panel 11 of this application is provided with a movable cleaning mechanism 8 for cleaning the surface. 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 perform surface cleaning through relative movement. A second brush plate 87 is provided on the cross frame 86, so as to clean the surface of the first photovoltaic panel 11 by means of the second brush plate 87.

[0054] Further, see Figure 16 The first brush plate 16 extends 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. Furthermore, flexible brushes are provided at the ends of the first brush plate 16 and the second brush plate 87 to clean the surfaces of the photovoltaic panels.

[0055] See Figures 12 to 15 The mobile cleaning mechanism 8 of this application includes a cleaning motor 81, a rolling frame 82, a reel 83, a pull reel 84, a pull line 85, and a crossbeam 86. The cleaning motor 81 is mounted on one side of the first photovoltaic panel 11 via a bracket, and the reel 83 is connected to the output end of the cleaning motor 81. The pull reel 84 is mounted on the other side of the first photovoltaic panel 11 via a mounting bracket. The crossbeam 86 is slidably mounted on the side end of the first photovoltaic panel 11 via the rolling frame 82. The pull line 85 is wound around the reel 83 and the pull reel 84, and the pull line 85 is fixedly connected to the rolling frame 82, so that the cleaning motor 81 can drive the reel 83 to move the pull line 85 within the longitudinal beam 10, thereby allowing the rolling frame 82 connected to the reel 83 to move on the longitudinal beam 10 via the vertically arranged rolling reels. Furthermore, the pull line 85 can be replaced by a chain or a transmission belt.

[0056] See Figure 2 The bracket of this application is equipped with a rain sensor 9. The cleaning motor 81 and the rain sensor 9 are electrically connected to the control system. By setting the rain sensor 9, when it rains, the rain sensor 9 conducts the circuit of the cleaning motor 81, which drives the pulley 83 to drive the pull wire 85 to move. This causes the rolling frame 82 to move on the longitudinal beams on both sides of the first photovoltaic panel 11, thereby driving 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 merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A photovoltaic agricultural irrigation system, characterized in that, The utility model relates to a solar energy irrigation system, which comprises: a photovoltaic panel group (1) rotatably arranged on a photovoltaic support (2) to adjust the angle of receiving sunlight and slidably arranged on the photovoltaic support (2) to adjust the area of receiving sunlight; an electric box (3) provided with a control system and an energy storage battery, the control system being electrically connected with the energy storage battery, and the photovoltaic panel being electrically connected with the control system; a pump body (4) electrically connected with the control system, the input end of the pump body (4) being communicated with a water storage pool through a pipeline; an irrigation pipe (5) communicated with the output end of the pump body (4) through an irrigation main pipe to drip irrigation or sprinkling irrigation the water in the water storage pool to the irrigation pipe arranged in farmland; 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 arranged on the photovoltaic support (2), the first photovoltaic panel (11) is fixedly arranged on the upper end of the rotating frame (14), and the second photovoltaic panel (12) and the third photovoltaic panel (13) are slidably arranged on the rotating frame (14) and located below the first photovoltaic panel (11); both ends of the second photovoltaic panel (12) are provided with first moving wheels (101), both ends of the second photovoltaic panel (12) are provided with second moving wheels (102), a tension wheel (103) and a driving wheel (104) are rotatably arranged on the rotating frame (14), a transmission component (105) is sleeved on the first moving wheels (101), the second moving wheels (102), the tension wheel (103) and the driving wheel (104), the transmission component (105) is connected with the first moving wheels (101) and the second moving wheels (102) through a fixing component, a second driving motor (106) is arranged on the rotating frame (14), the output end of the second driving motor (106) is connected with the driving wheel (104) through a shaft coupling or a speed reducer, so that the driving wheel (104) drives the transmission component (105) to drive the first moving wheels (101) and the second moving wheels (102) to move linearly relative to each other in the rotating frame (14), thereby driving the second photovoltaic panel (12) and the third photovoltaic panel (13) to expand to both sides of the first photovoltaic panel (11); the utility model further comprises a first storage frame (6) and a second storage frame (7), one end of the first storage frame (6) is hingedly connected to both ends of one side of the rotating frame (14), the other end of the first storage frame (6) is slidably connected with one side of the second photovoltaic panel (12) through a pulley, one end of the second storage frame (7) is hingedly connected to both ends of the other side of the rotating frame (14), and the other end of the second storage frame (7) is slidably connected with one side of the third photovoltaic panel (13) through a pulley. 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); 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) and the second limiting groove (142) are connected; the tensioning wheel (103) and the driving wheel (104) are located in the first limiting groove (141).

2. The photovoltaic agricultural irrigation system of claim 1, wherein, A first drive motor (15) for driving the rotating frame (14) to rotate is provided on one side of the photovoltaic bracket (2). The output end of the first drive motor (15) is connected to the rotating shaft of the rotating frame (14) through a coupling or reducer. A solar tracking sensor is provided on the photovoltaic bracket (2). The first drive motor (15) and the solar tracking sensor are electrically connected to the control system.

3. The photovoltaic agricultural irrigation system of claim 1, wherein, The transmission component (105) is a chain or belt, which is fixed to the first moving wheel (101) and the second moving wheel (102) by means of pins.

4. The photovoltaic agricultural irrigation system of claim 1, wherein, The first photovoltaic panel (11) is provided with a moving cleaning mechanism (8) for cleaning the surface. 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) perform surface cleaning through relative movement.

5. The photovoltaic agricultural irrigation system of claim 4, wherein, The mobile cleaning mechanism (8) includes a cleaning motor (81), a rolling frame (82), a spool (83), a pull spool (84), a pull line (85), and a cross frame (86). The cleaning motor (81) is mounted on one side of the first photovoltaic panel (11) via a bracket. The spool (83) is connected to the output end of the cleaning motor (81). The pull spool (84) is mounted on the other side of the first photovoltaic panel (11). The cross frame (86) is slidably mounted on the side end of the first photovoltaic panel (11) via the rolling frame (82). The pull line (85) is wound around the spool (83) and the pull spool (84). The pull line (85) is fixedly connected to the rolling frame (82). A second brush plate (87) is provided on the cross frame (86).

6. The photovoltaic agricultural irrigation system of claim 5, wherein, A rain sensor (9) is installed 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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