Spraying machine under photovoltaic panel

Abstract

The utility model provides a spraying machine under a photovoltaic panel. The spraying machine comprises an advancing mechanism; the spraying mechanism is arranged on the advancing mechanism; the power control mechanism is connected with the advancing mechanism and the spraying mechanism and used for controlling the advancing mechanism to advance and controlling the spraying mechanism to spray. Based on the arrangement of the power control mechanism, power can be provided for the advancing mechanism, so that the advancing mechanism can advance under the driving action of the power control mechanism, the advancing mechanism does not need to be manually pushed, manpower is effectively saved, and the working efficiency of the photovoltaic spraying machine is improved. The power control mechanism can provide power for the spraying mechanism, so that the spraying mechanism can spray under the driving action of the power control mechanism, power does not need to be provided for the spraying mechanism in a diesel and diesel generator power generation mode, and large noise and strenuous vibration generated in the power generation and power supply process are avoided; therefore, the spraying orientation effect of the spraying mechanism is improved, and the sprayed mist does not make contact with the photovoltaic panel.

Description

Technical Field

[0001] This application belongs to the field of agricultural machinery technology, and in particular relates to a photovoltaic panel under-sprayer. Background Technology

[0002] A photovoltaic panel under-sprayer mainly consists of two parts: a travel system and a spraying system. The travel system typically includes a wheeled chassis, a supporting steel frame, and a handle, while the spraying system typically includes a liquid storage tank, a diesel generator, a plunger pump, and a spray gun.

[0003] Because existing sprayers rely on manual pushing of handles for movement, they experience significant resistance in harsh environments such as sandy terrain, leading to labor-intensive operations, getting stuck, and wasting manpower while maintaining low efficiency. Furthermore, the spraying system requires diesel fuel and a diesel generator to power the plunger pump, generating considerable noise and vibration during power generation and supply. This affects the spray's directional accuracy and could cause the spray to come into contact with the photovoltaic panels, posing a safety hazard. Utility Model Content

[0004] This application provides a photovoltaic panel under-panel sprayer to solve the technical problems of existing sprayers, such as wasted manpower, low operating efficiency, and poor spray direction.

[0005] This application provides a photovoltaic panel under-panel sprayer, which includes: a traveling mechanism; a spraying mechanism disposed on the traveling mechanism; and a power control mechanism connected to the traveling mechanism and the spraying mechanism for controlling the traveling mechanism to travel and the spraying mechanism to spray.

[0006] In an optional embodiment of this application, the power control mechanism includes: a rechargeable power supply connected to the traveling mechanism and the spraying mechanism for supplying power to the traveling mechanism and the spraying mechanism; a first control switch disposed on the connection circuit between the rechargeable power supply and the traveling mechanism for controlling the traveling mechanism; and a second control switch disposed on the connection circuit between the rechargeable power supply and the spraying mechanism for controlling the spraying mechanism to spray.

[0007] In an optional embodiment of this application, the traveling mechanism includes: a tracked chassis; a support frame disposed on the tracked chassis and used to support the spraying mechanism; a differential drive motor disposed on the support frame and connected to the tracked chassis and the first control switch; and a handle disposed on the support frame, which can control the traveling direction of the tracked chassis under the action of external force.

[0008] In an optional embodiment of this application, the tracked chassis includes: a drive wheel connected to the differential drive motor; a load-bearing wheel for supporting the support frame; and tracks fitted onto the drive wheel and the load-bearing wheel.

[0009] In an optional embodiment of this application, the tracked chassis further includes a tensioning wheel for tensioning the tracks, and the tensioning wheel and the drive wheel are located at opposite ends of the tracks. The load-bearing wheel is located between the tensioning wheel and the drive wheel.

[0010] In an optional embodiment of this application, the spraying mechanism includes a storage tank, a plunger pump, a spray clutch handle, a spray gun, and connecting pipes. The plunger pump is connected to the storage tank and the spray gun via the connecting pipes, and is also connected to the rechargeable power supply, for delivering the solution in the storage tank to the spray gun. The spray clutch handle is connected to the connecting pipes and is used to control the opening or closing of the connecting pipes.

[0011] In an optional embodiment of this application, the spraying mechanism further includes a height adjustment bracket mounted on the support frame. The spray gun is detachably connected to the height adjustment bracket, allowing for height adjustment of the spray gun by mounting it at different height positions on the bracket.

[0012] In an optional embodiment of this application, the height adjustment bracket has a plurality of fixing holes spaced apart along its height direction. The spraying mechanism further includes fasteners and fixing clips, the fixing clips being used to hold the spray gun, and the fixing clips being able to be installed at any height of the fixing holes via the fasteners.

[0013] In an optional embodiment of this application, the spray gun includes a spray bar and a nozzle connected to the spray bar, and the nozzle is a vortex core nozzle.

[0014] In an optional embodiment of this application, the spray gun further includes a baffle disposed above the nozzle, the baffle being a streamlined fan-shaped baffle.

[0015] In summary, the photovoltaic panel under-sprayer provided in this application has at least the following beneficial effects:

[0016] In the photovoltaic sprayer of this application, based on the setting of the power control mechanism, the power control mechanism can provide power to the traveling mechanism, enabling the traveling mechanism to move under the drive of the power control mechanism without manual pushing, thereby effectively saving manpower and improving the operating efficiency of the photovoltaic sprayer. Furthermore, since the power control mechanism can also provide power to the spraying mechanism, allowing the spraying mechanism to spray under the drive of the power control mechanism, there is no need to use diesel fuel or diesel generators to power the spraying mechanism. This avoids generating significant noise and severe vibration during power generation and supply, thereby improving the spraying directionality of the spraying mechanism and ensuring that the spray does not come into contact with the photovoltaic panels, thus preventing safety issues. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is a side view of the photovoltaic panel under-sprayer provided in the embodiments of this application;

[0019] Figure 2 This is a front view of the photovoltaic panel under-sprayer provided in the embodiments of this application.

[0020] The reference numerals in the attached figures are as follows:

[0021] 100. Sprayer;

[0022] 10. Traveling mechanism; 11. Tracked chassis; 111. Drive wheel; 112. Load-bearing wheel; 113. Track; 114. Tensioner; 12. Support frame; 13. Differential drive motor; 14. Handle;

[0023] 20. Spraying mechanism; 21. Liquid storage tank; 22. Plunger pump; 23. Spray clutch handle; 24. Spray gun; 25. Connecting pipeline; 26. Height adjustment bracket; 27. Fixing clamp;

[0024] 30. Power control mechanism; 31. Rechargeable power supply; 32. First control switch; 33. Second control switch. Detailed Implementation

[0025] To make the above and other features and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0026] In the description of this application, features specified with "first" or "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The use of the term "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] The photovoltaic panel sprayer provided in this application embodiment is used to spray crops in the planting area under the photovoltaic panel. The photovoltaic panel is a solar panel used to convert absorbed solar energy into electrical energy, which can be converted into alternating current by a photovoltaic inverter before being used to supply power to the outside. Specifically, the planting area may have several photovoltaic panels arranged in an array, and the photovoltaic panels are connected in series to form a photovoltaic array.

[0030] The planting area can be any region with soil, desert, or other harsh environments; this application does not impose any specific limitations. The photovoltaic sprayer 100 provided in this application embodiment can be charged using electricity generated by photovoltaic panels in the planting area, or it can be charged using electricity generated by photovoltaic panels in other areas; this application does not impose any specific limitations.

[0031] It should be noted that the photovoltaic sprayer 100 provided in this application embodiment is particularly suitable for desert areas and other harsh environments.

[0032] Figure 1 This is a side view of the photovoltaic panel under-sprayer provided in the embodiments of this application.

[0033] Please see Figure 1 The photovoltaic sprayer 100 provided in this application embodiment includes a traveling mechanism 10, a spraying mechanism 20, and a power control mechanism 30.

[0034] The traveling mechanism 10 serves as both a support and a driving mechanism for the spraying mechanism 20, enabling the spraying mechanism 20 to move within the planting area under the photovoltaic panel. The traveling mechanism 10 is connected to the power control mechanism 30 and moves under the control of the power control mechanism 30.

[0035] The spraying mechanism 20 is mounted on the traveling mechanism 10 and serves as a spraying mechanism for water and / or agents (such as pesticides, growth promoters, etc.), which can atomize water and / or agents and apply them to crops in the planting area.

[0036] The power control mechanism 30 is connected to the traveling mechanism 10 and the spraying mechanism 20. As the driving and control mechanism of the traveling mechanism 10 and the spraying mechanism 20, it can provide power to the traveling mechanism 10 and control the traveling mechanism 10 to move (such as forward, backward and turn), and provide power to the spraying mechanism 20 and control the spraying mechanism 20 to spray (such as the power of the spraying mechanism 20).

[0037] In the photovoltaic sprayer 100 of this application, based on the setting of the power control mechanism 30, the power control mechanism 30 can provide power to the traveling mechanism 10, enabling the traveling mechanism 10 to move under the drive of the power control mechanism 30 without manual pushing, thereby effectively saving manpower and improving the working efficiency of the photovoltaic sprayer 100. Furthermore, since the power control mechanism 30 can also provide power to the spraying mechanism 20, enabling the spraying mechanism 20 to spray under the drive of the power control mechanism 30, there is no need to use diesel fuel or a diesel generator to power the spraying mechanism 20. This avoids generating significant noise and severe vibration during power generation and supply, thereby improving the spray directionality of the spraying mechanism 20 and ensuring that the spray does not come into contact with the photovoltaic panel, thus preventing safety issues.

[0038] Specifically, the power control mechanism 30 includes a rechargeable power supply 31, a first control switch 32, and a second control switch 33.

[0039] The rechargeable power supply 31 serves as a power source and is connected to the traveling mechanism 10 and the spraying mechanism 20 to supply power to them. Specifically, the rechargeable power supply 31 can be a lead-acid battery or a lithium-ion battery, and it can have an interface on its side, through which it can be directly charged using the photovoltaic circuit on the photovoltaic panel in the planting area.

[0040] Understandably, in order to connect the rechargeable power supply 31 with the traveling mechanism 10 and the spraying mechanism 20, two connection circuits extend from the rechargeable power supply 31, which respectively supply power to the traveling mechanism 10 and the spraying mechanism 20.

[0041] The first control switch 32 is located on the connection circuit between the rechargeable power supply 31 and the traveling mechanism 10, and is used to control the traveling mechanism 10 to move.

[0042] The second control switch 33 is located on the connection circuit between the rechargeable power supply 31 and the spray mechanism 20, and is used to control the spray mechanism 20 to spray.

[0043] Specifically, the rechargeable power supply 31 can be connected in sequence to the traveling mechanism 10 and the first control switch 32 to form a first control circuit; the rechargeable power supply 31 can be connected in sequence to the spraying mechanism 20 and the second control switch 33 to form a second control circuit.

[0044] In this embodiment, the rechargeable power supply 31 powers the traveling mechanism 10 and the spraying mechanism 20, driving them to operate, thus effectively saving manpower and improving the working efficiency of the photovoltaic sprayer 100. Furthermore, the traveling mechanism 10 and the spraying mechanism 20 can be started and controlled based on the first control switch 32 and the second control switch 33. Since the rechargeable power supply 31 operates with low noise and no vibration during power supply, it contributes to the stable spray direction of the spraying mechanism 20, preventing the spray from contacting the photovoltaic panel and causing safety issues. In addition, the rechargeable power supply 31 is easy to disassemble and maintain, facilitating the overall maintenance and management of the power control mechanism 30.

[0045] Figure 2 This is a front view of the photovoltaic panel under-sprayer provided in the embodiments of this application.

[0046] Please see Figure 1 and Figure 2 The traveling mechanism 10 includes a tracked chassis 11, a support frame 12, a differential drive motor 13, and a handle 14.

[0047] The tracked chassis 11 is a chassis structure that uses tracks for movement. It can be used normally in harsh areas (not limited to sandy areas) and is not easy to get stuck, which can ensure the passability and stability of the travel mechanism 10 in harsh areas. Specifically, the track material used in the tracked chassis 11 is hard plastic.

[0048] The support frame 12 is mounted on the tracked chassis 11 and is used to support the spraying mechanism 20. To ensure the support performance of the support frame 12, the support frame 12 can be made of steel frame structure.

[0049] The differential drive motor 13 is mounted on the support frame 12 and connected to the tracked chassis 11 and the first control switch 32. The differential drive motor 13 is connected to the rechargeable power supply 11, which provides it with power. Under the control of the first control switch 32, the differential drive motor 13 can achieve differential speed, and by creating a difference in the speed of the two tracks (which can also be combined with the manual control handle 14 as an auxiliary), the steering function of the traveling mechanism 10 is realized.

[0050] In some embodiments, the first control switch 32 may be a toggle switch structure, which realizes differential speed control of the differential drive motor 13 by toggling the positions of the toggle switches on both sides, thereby causing a difference in the speed of the two track sides, thus realizing the steering function of the traveling mechanism 10.

[0051] The handle 14 is mounted on the support frame 32 (e.g., welded to the rear side of the support frame 12 in the direction of travel of the traveling mechanism 10), and the handle 14 can also control the direction of travel of the tracked chassis 11 under the action of external force.

[0052] In this embodiment, using a tracked chassis 11 as the chassis structure of the traveling mechanism 10 allows the photovoltaic sprayer 100 of this application to operate normally in harsh areas and is less prone to getting stuck, thereby improving the passability and stability of the photovoltaic sprayer 100 in harsh areas. Furthermore, the traveling mechanism 10 can be powered primarily by a differential drive motor 13 during travel, with steering control achieved through the differential drive motor 13 and the first control switch 32. Simultaneously, the manual control handle 14 assists in controlling the travel speed and direction, effectively saving manpower and improving the operating efficiency of the photovoltaic sprayer 100.

[0053] In some embodiments, handles 14 can be disposed on the left and right sides of the support frame 12 in a left-right direction perpendicular to the travel direction of the traveling mechanism 10. A first control switch 32 is mounted on the left handle 14, and a second control switch 33 is mounted on the right handle 14. Additionally, to prevent the handles 14 from slipping, the tail end of the handle 14 can be covered with a layer of anti-slip rubber.

[0054] Please see Figure 1The tracked chassis 11 includes a drive wheel 111, a load-bearing wheel 112, and a track 113. The drive wheel 111 is connected to a differential drive motor 13 and drives the photovoltaic sprayer 100 of this application after the differential drive motor 13 starts operating. The load-bearing wheel 112 is fixedly mounted on a support frame 12 and supports the support frame 12. The track 113 is fitted over the drive wheel 111 and the load-bearing wheel 112, so that the drive wheel 111 drives the load-bearing wheel 112 to move synchronously.

[0055] In this embodiment, the tracked chassis structure formed by the track 113, drive wheel 111, and load-bearing wheel 112 enables the photovoltaic sprayer 100 of this application to operate normally in harsh areas and is less prone to getting stuck, thereby improving the passability of the photovoltaic sprayer 100 in harsh areas. Furthermore, by connecting the drive wheel 111 and load-bearing wheel 112 via the track 113, synchronous movement of the load-bearing wheel 112 and drive wheel 111 can be achieved after starting the differential drive motor 13, thereby ensuring the stability and smoothness of the traveling mechanism 10 during travel.

[0056] Please see Figure 1 The tracked chassis 11 also includes a tension wheel 114, which is used to tension the track 113. The tension wheel 114 and the drive wheel 111 are located at both ends of the track 113, and the load-bearing wheel 112 is located between the tension wheel 114 and the drive wheel 111.

[0057] In this embodiment, the tension pulley 114 maintains tension on the track 113, allowing the track 113 to act on the load-bearing roller 112 so that the load-bearing roller 112 can move synchronously with the drive wheel 111. Furthermore, when the track 113 requires maintenance, the tension pulley 114 can be removed to loosen the track 113, facilitating replacement and maintenance.

[0058] To improve the stability of the tracked chassis 11 during operation, one side of the tracked chassis 11 can have a six-wheel structure, namely, the front end is the drive wheel 111, the middle four wheels are the load-bearing wheels 112, and the end is the tension wheel 114.

[0059] Please see Figure 1 The spray mechanism 20 includes a liquid storage tank 21, a plunger pump 22, a spray clutch handle 23, a spray gun 24, and a connecting pipe 25.

[0060] The storage tank 21 has a covered opening and a drug outlet on the side. The covered opening is used to inject water and medicine, so that the water and medicine can mix in the storage tank 21 to form a medicine solution, and the drug outlet on the side is used for the medicine solution to flow out. The drug outlet on the storage tank 21 can be connected to the plunger pump 22 through a connecting pipe 25.

[0061] The plunger pump 22 is connected to the storage tank 21 and the spray gun 24 via the connecting pipe 25. The plunger pump 22 is connected to a rechargeable power supply 31 and, when powered by the rechargeable power supply 31, is used to deliver the solution in the storage tank 21 to the spray gun 24. The spray clutch handle 23 is connected to the connecting pipe 25 and is used to control the opening or closing of the connecting pipe 25.

[0062] Specifically, a filter can be installed on the connecting pipe 25 between the drug outlet on the storage tank 21 and the plunger pump 22. The filter is used to filter the drug solution before it enters the plunger pump 22 to prevent large particles from affecting or damaging the plunger pump 22. A check valve can be installed on the connecting pipe 25 between the plunger pump 22 and the spray gun 24 to prevent the drug solution from flowing back and damaging the plunger pump 22.

[0063] Please see Figure 1 and Figure 2 The spraying mechanism 20 also includes a height adjustment bracket 26, which is mounted on the support frame 32. The spray gun 24 is detachably connected to the height adjustment bracket 26 so that the height of the spray gun 24 can be adjusted by installing it at different height positions on the height adjustment bracket 26.

[0064] Since the spray gun 24 can be installed at different heights on the height adjustment bracket 26, the spray gun 24 can be fixed at different heights for pesticide application, which can ensure more stable spray application and eliminate the need for manual hand-held spray gun 24 application.

[0065] The adjusting bracket 26 has a plurality of fixing holes (not shown) spaced apart along its height direction. The spraying mechanism 20 also includes fasteners (not shown) and a retaining clip 27, which is used to hold the spray gun 24 and can be installed at any height through the fixing holes via the fasteners to adjust the installation height of the spray gun 24 on the height adjusting bracket 26. Specifically, the fasteners can be wing screws.

[0066] In this embodiment, based on multiple fixing holes of different heights, the fixing clip 27 can be fastened to the fixing hole corresponding to the appropriate working height by fasteners, which can ensure more stable spraying and eliminate the need for manual hand-held spray gun 24 for spraying.

[0067] The spray gun 24 includes a spray bar 241 and a nozzle 242 connected to the spray bar 241, and the nozzle 242 is a vortex core nozzle. Because the spray gun 24 uses a vortex core nozzle, the liquid can form a vortex effect in the nozzle 242, which makes the range of the liquid sprayed from the nozzle 242 longer, the droplet breakage smaller, the water mist diffusion less, and the liquid sedimentation coefficient higher. This ensures that the liquid spray does not spread upward, thereby avoiding the problem of the liquid spray contacting the photovoltaic panel and causing damage to the photovoltaic panel.

[0068] The spray gun 24 also includes a baffle 243 disposed above the nozzle 242 (such as directly above or diagonally above), the baffle 243 being a streamlined fan-shaped baffle.

[0069] Based on the streamlined fan-shaped baffle 243, after the liquid medicine is atomized and sprayed out in the spray gun 24 through the vortex core nozzle, it can achieve low-altitude directional spraying under the restriction of the streamlined fan-shaped baffle 243, thereby ensuring that the liquid medicine spray will not spread upward, thus avoiding the problem of damage to the photovoltaic panel caused by the liquid medicine spray contacting the photovoltaic panel.

[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A photovoltaic panel under-sprayer, characterized in that, include: Traveling mechanism (10); A spraying mechanism (20) is provided on the traveling mechanism (10); as well as A power control mechanism (30) is connected to the traveling mechanism (10) and the spraying mechanism (20) for controlling the traveling mechanism (10) to travel and the spraying mechanism (20) to spray. The power control mechanism (30) includes: A rechargeable power supply (31) is connected to the traveling mechanism (10) and the spraying mechanism (20) to supply power to the traveling mechanism (10) and the spraying mechanism (20); A first control switch (32) is disposed on the connection circuit between the rechargeable power supply (31) and the traveling mechanism (10), for controlling the movement of the traveling mechanism (10); and The second control switch (33) is provided on the connection circuit between the rechargeable power supply (31) and the spray mechanism (20) for controlling the spray mechanism (20) to spray; The traveling mechanism (10) includes: Tracked chassis (11); A support frame (12) is mounted on the tracked chassis (11) and is used to support the spraying mechanism (20). A differential drive motor (13) is mounted on the support frame (12) and connected to the tracked chassis (11) and the first control switch (32); and The handle (14) is mounted on the support frame (12) and can control the direction of travel of the tracked chassis (11) under the action of external force.

2. The photovoltaic panel under-sprayer according to claim 1, characterized in that, The tracked chassis (11) includes: The drive wheel (111) is connected to the differential drive motor (13); Load-bearing wheels (112) are used to support the support frame (12); and Tracks (113) are fitted onto the drive wheel (111) and the load-bearing wheel (112).

3. The photovoltaic panel under-sprayer according to claim 2, characterized in that, The tracked chassis (11) also includes a tensioning wheel (114), which is used to tension the track (113), and the tensioning wheel (114) and the drive wheel (111) are located at both ends of the track (113); The load-bearing wheel (112) is located between the tension wheel (114) and the drive wheel (111).

4. The photovoltaic panel under-sprayer according to claim 3, characterized in that, The spraying mechanism (20) includes a liquid storage tank (21), a plunger pump (22), a spray clutch handle (23), a spray gun (24), and connecting pipes (25); The plunger pump (22) is connected to the liquid storage tank (21) and the spray gun (24) through the connecting pipe (25), and the plunger pump (22) is connected to the rechargeable power supply (31) to transport the solution in the liquid storage tank (21) to the spray gun (24); The spray clutch handle (23) is connected to the connecting pipe (25) and is used to control the connection pipe (25) to be open or closed.

5. The photovoltaic panel under-sprayer according to claim 4, characterized in that, The spraying mechanism (20) also includes a height adjustment bracket (26), which is mounted on the support frame (12); The spray gun (24) is detachably connected to the height adjustment bracket (26) so that the height of the spray gun (24) can be adjusted by installing it at different height positions on the height adjustment bracket (26).

6. The photovoltaic panel under-sprayer according to claim 5, characterized in that, The height adjustment bracket (26) has a plurality of fixing holes spaced apart along its height direction; The spraying mechanism (20) also includes fasteners and a retaining clip (27), the retaining clip (27) being used to hold the spray gun (24), and the retaining clip (27) being able to be installed in a retaining hole at any height via the fasteners.

7. The photovoltaic panel under-sprayer according to claim 4, characterized in that, The spray gun (24) includes a spray bar (241) and a nozzle (242) connected to the spray bar (241), and the nozzle (242) is a vortex core nozzle.

8. The photovoltaic panel under-sprayer according to claim 7, characterized in that, The spray gun (24) also includes a baffle (243) disposed above the nozzle (242), the baffle (243) being a streamlined fan-shaped baffle.

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