Mobile photovoltaic charging device based on outdoor activities and use method thereof

Abstract

The invention discloses a mobile photovoltaic charging device based on outdoor activities and a use method thereof.The mobile photovoltaic charging device comprises a rack and is characterized in that four sets of universal wheels are arranged at the bottom of the rack, an electric box is placed on the rack, two sets of wires are connected to the top of the electric box, and the two sets of wires are connected with a power source; the ends, away from the electric box, of the two sets of wires are connected with a photovoltaic panel used for outdoor activities, and a cleaning assembly is arranged at the rear end of the photovoltaic panel and used for cleaning dust on the surface of the photovoltaic panel. A charging port is formed in the right side of the electricity box, an adjusting assembly is arranged between the photovoltaic panel and the rack, and the adjusting assembly adjusts the use angle of the photovoltaic panel through rotation; by arranging the adjusting assembly, the use angle of the photovoltaic panel can be accurately adjusted, so that the photovoltaic panel is unfolded and accurately aligned with the sun in the daytime and is closed at night, damage caused by environmental factors such as dust and dew is effectively avoided, and the service life is prolonged.

Description

Technical Field

[0001] The invention relates to a mobile photovoltaic charging device based on outdoor activities and a use method thereof. Background Art

[0002] In today's society, outdoor activities have become an important way for people to pursue health, relieve stress, and get close to nature. From short weekend outings to long-distance adventure trips, outdoor activities not only enrich people's lives, but also promote physical and mental health. However, with the advancement of technology and people's increasing dependence on electronic devices, the problem of power supply in outdoor activities has become increasingly prominent; Outdoor photovoltaic charging devices use photovoltaic technology to convert solar energy into electrical energy, providing a continuous and environmentally friendly power supply for electronic devices during outdoor activities. As a clean and renewable energy technology, photovoltaic technology has been rapidly developed and widely used in recent years. It can not only reduce dependence on traditional energy, but also reduce carbon emissions and protect the ecological environment; When using existing mobile photovoltaic charging devices, the photovoltaic panel angle adjustment mechanism is often designed to be relatively simple, mainly relying on manual rotation or simple mechanical structures. These mechanisms may be barely competent when dealing with a single photovoltaic panel, but when facing multiple photovoltaic panels, the adjustment process is cumbersome and time-consuming, and it is difficult to achieve accurate angle positioning, which seriously affects the charging efficiency. For this reason, we propose a mobile photovoltaic charging device based on outdoor activities and its use method. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a mobile photovoltaic charging device based on outdoor activities and a method of using the same, by setting.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a mobile photovoltaic charging device based on outdoor activities, comprising a frame, characterized in that: four sets of universal wheels are arranged at the bottom of the frame, an electric box is placed on the frame, two sets of wires are connected to the top of the electric box, and the ends of the two sets of wires away from the electric box are connected to the photovoltaic panel used for outdoor activities, and a cleaning component is arranged at the rear end of the photovoltaic panel, and the cleaning component is used to clean the dust on the surface of the photovoltaic panel; A charging port is provided on the right side of the electric box, and an adjustment component is provided between the photovoltaic panel and the frame. A connecting assembly is provided between the frame and the universal wheel, and the universal wheel is connected to the frame through the connecting assembly. Wherein, the adjustment component adjusts the use angle of the photovoltaic panel by rotating.

[0005] As a preferred technical solution of the present invention, the adjustment component includes two groups of fixed blocks symmetrically arranged on the outer wall of the upper end and the left end of the frame, a rotating rod is rotated in the fixed block, a connecting block is provided on the rotating rod, and the other end of the connecting block is fixedly connected to the outer wall of the photovoltaic panel, a movable warehouse is provided at the front end of the frame, a screw rod rotates in the movable warehouse, a first motor is provided at the right end of the screw rod, and the first motor is fixed on the right end surface of the movable warehouse, a transmission block is threadedly connected to the screw rod, a rack is provided at the left end of the transmission block, and a gear is provided at the front end of the rotating rod, and the two groups of gears are meshed with the rack.

[0006] As a preferred technical solution of the present invention, the input end of the first motor is connected to the output end of the electric box through a wire, the first motor has a built-in wireless module, and the first motor is wirelessly connected to the controller through the wireless module.

[0007] As a preferred technical solution of the present invention, soft pads are glued on the surfaces of one side corresponding to each other of the two groups of photovoltaic panels, and the soft pads are designed in a U-shaped shape.

[0008] As a preferred technical solution of the present invention, the connecting assembly includes four groups of plug blocks arranged at the bottom of the frame, the outer walls of the plug blocks are all slidably provided with sockets, the bottoms of the sockets are all provided with universal wheels, the surfaces of the plug blocks on the side facing away from the frame are all provided with sliding grooves, the inner walls of the sliding grooves are all provided with springs, the other ends of the springs are all provided with limit rods, and the limit rods slide back and forth in the sliding grooves, and the inner walls of the sockets corresponding to the outer ends of the limit rods are all provided with limit grooves.

[0009] As a preferred technical solution of the present invention, the limiting rod is designed to be rectangular, and the sliding groove and the limiting groove are provided as through holes adapted to the limiting rod.

[0010] As a preferred technical solution of the present invention, the cleaning component includes a fixing seat arranged on the rear end surface of the photovoltaic panel, a first threaded rod is rotated in the fixing seat, a second motor is provided on the outer end surface of the first threaded rod, a threaded block is threadedly connected to the first threaded rod, a fixing frame is provided on the top surface of the threaded block, a cleaning plate is slidably arranged in the fixing frame, two groups of second threaded rods are provided on the top of the cleaning plate, the second threaded rod is slidably connected to the fixing frame, a nut is threadedly rotated on the threaded block, and an auxiliary groove is provided on the outer wall of the fixing frame corresponding to the bottom end surface of the nut.

[0011] As a preferred technical solution of the present invention, the surface of the cleaning plate facing the photovoltaic panel is a wool brush, and the front and rear ends of the cleaning plate are both in contact with the surface of the photovoltaic panel.

[0012] As a preferred technical solution of the present invention, the outer wall of the nut is provided with anti-slip patterns, and the height of the nut is greater than the depth of the auxiliary groove.

[0013] The present invention also provides a technical solution, a method for using a mobile photovoltaic charging device based on outdoor activities, and the specific steps are as follows: S1: Adjust the use angle of the photovoltaic panel, start the first motor through the controller, so that the first motor drives the screw rod to rotate in the movable bin, and the rotating screw rod acts on the transmission block synchronously, so that the transmission block moves back and forth in the movable bin and drives the rack synchronously, so that the rack drives the rotating rod to rotate in the fixed block through two sets of gears, and the two sets of rotating rods drive the two sets of photovoltaic panels to rotate, so that the two sets of photovoltaic panels face the direction of direct sunlight. At night, the rack drives the rotating rod to rotate in the fixed block through the gear, and the rotating rod drives the two sets of photovoltaic panels to close, so as to protect the photovoltaic panels; S2: Move the rack. Press the limit rod into the slide slot so that the limit rod continuously squeezes the spring toward the inner wall of the slide slot, causing the spring to deform. At the same time, the limit rod slides into the slide slot. Then, the universal wheel drives the socket to slide on the plug block until the socket drives the limit slot to align with the limit rod. At this time, the restoring force of the spring will push the limit rod to reset and slide in the slide slot until the limit rod passes through the limit slot. Then, install the remaining three groups on the plug block in the same way, and then drive the rack to move by the universal wheel. S3: Clean the photovoltaic panel by sliding the cleaning plate and the second threaded rod into the fixed frame, and making the cleaning plate fit the surface of the photovoltaic panel until the nut on the second threaded rod slides to align with the auxiliary groove. At this time, rotate the nut to make the nut rotate on the second threaded rod and turn into the auxiliary groove, and then drive the first threaded rod to rotate in the fixed seat through the second motor, so that the first threaded rod acts on the threaded block, and the threaded block slides back and forth in the fixed seat, and then the cleaning plate is synchronously driven by the threaded block to clean the dust on the surface of the photovoltaic panel.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. By setting the adjustment components, the coordinated work of the controller fixed block, the rotating rod, the connecting block, the movable bin, the screw rod, the first motor, the transmission block, the rack and the gear can realize the precise adjustment of the use angle of the photovoltaic panel, so that the photovoltaic panel can be unfolded and accurately aimed at the sun during the day, and closed at night, effectively avoiding the damage of environmental factors such as dust and dew, and extending the service life; 2. The connection components are set up to facilitate the disassembly and assembly of the universal wheel by the staff, and the assembly and disassembly between the universal wheel and the frame becomes extremely simple. When the universal wheel is damaged, the universal wheel can be quickly replaced. At the same time, the modular assembly method of the connection components allows each component to be independent and closely matched with each other, greatly increasing the connection stability between the universal wheel and the frame; 3. Through the cleaning assembly, the cleaning plate and the second threaded rod slide into the fixed frame and fit with the surface of the photovoltaic panel, and the thread of the nut on the second threaded rod rotates and turns into the auxiliary groove, so that the cleaning plate and the surface of the photovoltaic panel are in close contact and fixation. Subsequently, the threaded block slides back and forth in the fixed seat and synchronously drives the cleaning plate to clean the surface of the photovoltaic panel. This design significantly improves the cleaning efficiency and ensures the cleanliness of the surface of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of a partial cross-sectional structure of a connection assembly of the present invention; Figure 4 It is a schematic diagram of a partial cross-sectional structure of an adjustment component of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional structure of a cleaning component of the present invention; Figure 6 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0016] Among them: 1. frame; 2. universal wheel; 3. electric box; 4. wire; 5. photovoltaic panel; 6. charging port; 7. adjustment component; 71. fixed block; 72. rotating rod; 73. connecting block; 74. movable bin; 75. screw rod; 76. first motor; 77. transmission block; 78. rack; 79. gear; 8. connecting component; 81. plug-in block; 82. socket; 83. slide groove; 84. spring; 85. limit rod; 86. limit groove; 9. cleaning component; 91. fixing seat; 92. first threaded rod; 93. second motor; 94. threaded block; 95. fixing frame; 96. cleaning plate; 97. second threaded rod; 98. nut; 99. auxiliary groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can be obtained from commercial channels.

[0018] Example: like Figure 1 - Figure 7 As shown, this embodiment proposes a mobile photovoltaic charging device based on outdoor activities, including a frame 1, characterized in that: four sets of universal wheels 2 are provided at the bottom of the frame 1, an electric box 3 is placed on the frame 1, two sets of wires 4 are connected to the top of the electric box 3, and the ends of the two sets of wires 4 away from the electric box 3 are connected to the photovoltaic panel 5 used for outdoor activities, and a cleaning component 9 is provided at the rear end of the photovoltaic panel 5, and the cleaning component 9 is used to clean the dust on the surface of the photovoltaic panel 5; A charging port 6 is provided on the right side of the electric box 3, and an adjustment component 7 is provided between the photovoltaic panel 5 and the frame 1. A connecting assembly 8 is provided between the frame 1 and the universal wheel 2, and the universal wheel 2 is connected to the frame 1 through the connecting assembly 8. Wherein, the adjustment component 7 adjusts the use angle of the photovoltaic panel 5 by rotating; The adjustment assembly 7 includes two groups of fixed blocks 71 symmetrically arranged on the outer wall of the upper end and the left end of the frame 1, and a rotating rod 72 is rotated in the fixed block 71, and a connecting block 73 is provided on the rotating rod 72. The other end of the connecting block 73 is fixedly connected to the outer wall of the photovoltaic panel 5. A movable warehouse 74 is provided at the front end of the frame 1, and a screw rod 75 rotates in the movable warehouse 74. A first motor 76 is provided at the right end of the screw rod 75, and the first motor 76 is fixed on the right end surface of the movable warehouse 74. A transmission block 77 is threadedly connected to the screw rod 75, and a rack 78 is provided at the left end of the transmission block 77. A gear 79 is provided at the front end of the rotating rod 72, and two groups of gears 79 are meshed with the rack 78.

[0019] When it is necessary to adjust the use angle of the photovoltaic panel 5, the first motor 76 is started by the controller, so that the first motor 76 drives the screw rod 75 to rotate in the movable bin 74, and the rotating screw rod 75 acts on the transmission block 77 synchronously, so that the transmission block 77 moves back and forth in the movable bin 74 and synchronously drives the rack 78, so that the rack 78 drives the rotating rod 72 to rotate in the fixed block 71 through the two sets of gears 79, and the two sets of rotating rods 72 drive the two sets of photovoltaic panels 5 to rotate, so that the two sets of photovoltaic panels 5 face the direction of direct sunlight; In order to facilitate the staff to operate the first motor 76, the input end of the first motor 76 is connected to the output end of the electric box 3 through a wire. The first motor 76 has a built-in wireless module, and the first motor 76 is wirelessly connected to the controller through the wireless module. Through this design, it is convenient for the staff to operate the first motor 76 remotely, and at the same time, the electricity stored in the electric box 3 can be used to achieve the purpose of energy recycling, so that the first motor 76 can be used anywhere; In order to increase the sealing performance when the two groups of photovoltaic panels 5 are connected, soft pads are glued on the surfaces of the corresponding sides of the two groups of photovoltaic panels 5, and the soft pads are designed in a mouth shape. Through this design, when the two groups of photovoltaic panels 5 are closed, water vapor and dust are not easy to pass through the gap at the connection between the two groups of photovoltaic panels 5 and cause damage to the two groups of photovoltaic panels 5.

[0020] The connecting assembly 8 includes four groups of plug blocks 81 arranged at the bottom of the frame 1. The outer walls of the plug blocks 81 are all slidably provided with sockets 82. The bottoms of the sockets 82 are all provided with universal wheels 2. The surfaces of the plug blocks 81 on one side away from the frame 1 are all provided with sliding grooves 83. The inner walls of the sliding grooves 83 are all provided with springs 84. The other ends of the springs 84 are all provided with limiting rods 85, and the limiting rods 85 slide back and forth in the sliding grooves 83. The inner walls of the sockets 82 corresponding to the outer ends of the limiting rods 85 are all provided with limiting grooves 86.

[0021] When the frame 1 is moved, the limit rod 85 is pressed into the slide groove 83 so that the limit rod 85 continuously squeezes the spring 84 toward the inner wall of the slide groove 83, causing the spring 84 to deform. At the same time, the limit rod 85 slides into the slide groove 83, and then the socket 82 is driven to slide on the plug block 81 through the universal wheel 2 until the socket 82 drives the limit groove 86 to slide to align with the limit rod 85. At this time, the restoring force of the spring 84 will push the limit rod 85 to return to its original position and slide in the slide groove 83 until the limit rod 85 passes through the limit groove 86. Then the remaining three groups are installed on the plug block 81 in the same way, and then the frame 1 is driven to move through the universal wheel 2.

[0022] In order to improve the stability of the connection between the plug block 81 and the socket 82, the limiting rod 85 is designed to be rectangular, and the slide groove 83 and the limiting groove 86 are provided as through holes adapted to the limiting rod 85. This design can increase the contact area between the limiting rod 85 and the slide groove 83 and the limiting groove 86, and can also prevent the limiting rod 85 from shaking when moving, thereby ensuring the stability of the connection between the plug block 81 and the socket 82; The cleaning assembly 9 includes a fixing seat 91 arranged on the rear end surface of the photovoltaic panel 5, a first threaded rod 92 is rotated in the fixing seat 91, a second motor 93 is arranged on the outer end surface of the first threaded rod 92, a threaded block 94 is threadedly connected to the first threaded rod 92, a fixing frame 95 is arranged on the top surface of the threaded block 94, a cleaning plate 96 is slidably arranged in the fixing frame 95, two sets of second threaded rods 97 are arranged on the top of the cleaning plate 96, the second threaded rod 97 is slidably connected to the fixing frame 95, a nut 98 is threadedly rotated on the threaded block 94, and an auxiliary groove 99 is arranged on the outer wall of the fixing frame 95 corresponding to the bottom surface of the nut 98; When it is necessary to clean the dust on the surface of the photovoltaic panel 5, the cleaning plate 96 and the second threaded rod 97 are slid into the fixing frame 95, and the cleaning plate 96 is fitted with the surface of the photovoltaic panel 5 until the nut 98 on the second threaded rod 97 slides to align with the auxiliary groove 99. At this time, the nut 98 is rotated to make the nut 98 threadedly rotate on the second threaded rod 97 and rotate into the auxiliary groove 99, and then the first threaded rod 92 is driven by the second motor 93 to rotate in the fixing seat 91, so that the first threaded rod 92 acts on the threaded block 94 and the threaded block 94 slides back and forth in the fixing seat 91, and then the cleaning plate 96 is synchronously driven by the threaded block 94 to clean the dust on the surface of the photovoltaic panel 5; In order to prevent the cleaning plate 96 from scratching the photovoltaic panel 5, the surface of the cleaning plate 96 facing the photovoltaic panel 5 is a wool brush, and the front and rear ends of the cleaning plate 96 are both in contact with the surface of the photovoltaic panel 5. Through this design, the softness of the wool can be utilized, reducing the damage to the surface of the photovoltaic panel 5 caused by the cleaning plate 96 rubbing back and forth.

[0023] In order to facilitate the staff to rotate the cleaning plate 96, the outer wall of the nut 98 is provided with anti-slip grooves, and the height of the nut 98 is greater than the depth of the auxiliary groove 99. Through this design, the friction between the staff's hand and the nut 98 can be increased to prevent the hand from slipping when rotating the nut 98.

[0024] A method for using a mobile photovoltaic charging device based on outdoor activities, the specific steps are as follows: S1: Adjust the use angle of the photovoltaic panel 5, start the first motor 76 through the controller, so that the first motor 76 drives the screw rod 75 to rotate in the movable bin 74, and the rotating screw rod 75 acts on the transmission block 77 synchronously, so that the transmission block 77 moves back and forth in the movable bin 74 and synchronously drives the rack 78, so that the rack 78 drives the rotating rod 72 to rotate in the fixed block 71 through the two sets of gears 79, and the two sets of rotating rods 72 drive the two sets of photovoltaic panels 5 to rotate, so that the two sets of photovoltaic panels 5 face the direction of direct sunlight. At night, the rack 78 drives the rotating rod 72 to rotate in the fixed block 71 through the gear 79, and the rotating rod 72 drives the two sets of photovoltaic panels 5 to close, so as to protect the photovoltaic panels 5; S2: Move the frame 1, by pressing the limit rod 85 into the slide groove 83, the limit rod 85 continuously squeezes the spring 84 toward the inner wall of the slide groove 83, causing the spring 84 to deform, and the limit rod 85 slides into the slide groove 83, and then drives the socket 82 to slide on the plug block 81 through the universal wheel 2, until the socket 82 drives the limit groove 86 to slide to align with the limit rod 85, at this time, the restoring force of the spring 84 will push the limit rod 85 to return and slide in the slide groove 83, until the limit rod 85 passes through the limit groove 86, and then the remaining three groups are installed on the plug block 81 in the same way, and then the frame 1 is driven to move by the universal wheel 2; S3: Clean the photovoltaic panel 5 by sliding the cleaning plate 96 and the second threaded rod 97 into the fixed frame 95, and making the cleaning plate 96 fit the surface of the photovoltaic panel 5 until the nut 98 on the second threaded rod 97 slides to align with the auxiliary groove 99. At this time, rotate the nut 98 to make the nut 98 threadedly rotate on the second threaded rod 97 and turn into the auxiliary groove 99, and then drive the first threaded rod 92 to rotate in the fixing seat 91 through the second motor 93, so that the first threaded rod 92 acts on the threaded block 94, and makes the threaded block 94 slide back and forth in the fixing seat 91, and then synchronously drive the cleaning plate 96 through the threaded block 94 to clean the dust on the surface of the photovoltaic panel 5.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above implementation regulations. The above implementation regulations and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mobile photovoltaic charging device based on outdoor activities, comprising a frame (1), characterized in that: Four sets of universal wheels (2) are provided at the bottom of the frame (1), an electric box (3) is placed on the frame (1), two sets of wires (4) are connected to the top of the electric box (3), the ends of the two sets of wires (4) away from the electric box (3) are connected to a photovoltaic panel (5) used for outdoor activities, a cleaning component (9) is provided at the rear end of the photovoltaic panel (5), and the cleaning component (9) is used to clean dust on the surface of the photovoltaic panel (5); A charging port (6) is provided on the right side of the electrical box (3), and an adjustment component (7) is provided between the photovoltaic panel (5) and the frame (1). A connecting assembly (8) is provided between the frame (1) and the universal wheel (2), and the universal wheel (2) is connected to the frame (1) via the connecting assembly (8). Wherein, the adjustment component (7) adjusts the use angle of the photovoltaic panel (5) by rotating.

2. A mobile photovoltaic charging device based on outdoor activities according to claim 1, characterized in that: The adjustment assembly (7) comprises two sets of fixed blocks (71) symmetrically arranged on the upper end and the left end outer wall of the frame (1), each of the fixed blocks (71) has a rotating rod (72) rotating therein, each of the rotating rods (72) is provided with a connecting block (73), and the other end of each of the connecting blocks (73) is fixedly connected to the outer wall of the photovoltaic panel (5). A movable bin (74) is provided at the front end of the frame (1), a screw rod (75) is rotatable in the movable bin (74), a first motor (76) is provided at the right end of the screw rod (75), and the first motor (76) is fixed on the right end surface of the movable bin (74). A transmission block (77) is threadedly connected to the screw rod (75), a rack (78) is provided at the left end of the transmission block (77), and a gear (79) is provided at the front end of each rotating rod (72), and both sets of gears (79) are meshed with the rack (78).

3. A mobile photovoltaic charging device based on outdoor activities according to claim 2, characterized in that: The input end of the first motor (76) is connected to the output end of the electric box (3) via a wire, the first motor (76) has a built-in wireless module, and the first motor (76) is wirelessly connected to the controller via the wireless module.

4. The mobile photovoltaic charging device based on outdoor activities according to claim 1, characterized in that: Soft pads are glued on the surfaces of the corresponding sides of the two groups of photovoltaic panels (5), and the soft pads are designed in a U-shaped shape.

5. The mobile photovoltaic charging device based on outdoor activities according to claim 1, characterized in that: The connecting assembly (8) comprises four groups of plug blocks (81) arranged at the bottom of the frame (1); the outer walls of the plug blocks (81) are all slidably provided with sockets (82); the bottoms of the sockets (82) are all provided with universal wheels (2); the surface of the plug blocks (81) on one side away from the frame (1) is provided with a slide groove (83); the inner wall of the slide groove (83) is provided with a spring (84); the other end of the spring (84) is provided with a limit rod (85); the limit rod (85) slides back and forth in the slide groove (83); and the inner wall of the socket (82) corresponding to the outer end of the limit rod (85) is provided with a limit groove (86).

6. A mobile photovoltaic charging device based on outdoor activities according to claim 5, characterized in that: The limiting rod (85) is designed to be rectangular, and the sliding groove (83) and the limiting groove (86) are formed as through holes that are compatible with the limiting rod (85).

7. The mobile photovoltaic charging device based on outdoor activities according to claim 1, characterized in that: The cleaning assembly (9) comprises a fixing seat (91) arranged on the rear end surface of the photovoltaic panel (5), a first threaded rod (92) is rotatably arranged in the fixing seat (91), a second motor (93) is arranged on the outer end surface of the first threaded rod (92), a threaded block (94) is threadedly connected to the first threaded rod (92), a fixing frame (95) is arranged on the top surface of the threaded block (94), a cleaning plate (96) is slidably arranged in the fixing frame (95), two groups of second threaded rods (97) are arranged on the top of the cleaning plate (96), the second threaded rod (97) is slidably connected to the fixing frame (95), a nut (98) is threadedly rotatably arranged on the threaded block (94), and an auxiliary groove (99) is arranged on the outer wall of the fixing frame (95) corresponding to the bottom surface of the nut (98).

8. A mobile photovoltaic charging device based on outdoor activities according to claim 7, characterized in that: The surface of the cleaning plate (96) facing the photovoltaic panel (5) is a wool brush, and the front and rear ends of the cleaning plate (96) are both in contact with the surface of the photovoltaic panel (5).

9. The mobile photovoltaic charging device based on outdoor activities according to claim 7, characterized in that: The outer wall of the nut (98) is provided with anti-slip patterns, and the height of the nut (98) is greater than the depth of the auxiliary groove (99).

10. A method for using a mobile photovoltaic charging device based on outdoor activities according to any one of claims 1 to 9, characterized in that: S1: adjusting the use angle of the photovoltaic panel (5), starting the first motor (76) through the controller, so that the first motor (76) drives the screw rod (75) to rotate in the movable bin (74), and the rotating screw rod (75) acts on the transmission block (77) synchronously, so that the transmission block (77) moves back and forth in the movable bin (74) and synchronously drives the rack (78), so that the rack (78) drives the rotating rod (72) to rotate in the fixed block (71) through two sets of gears (79), and the two sets of rotating rods (72) drive the two sets of photovoltaic panels (5) to rotate, so that the two sets of photovoltaic panels (5) face the direction of direct sunlight. At night, the rack (78) drives the rotating rod (72) to rotate in the fixed block (71) through the gear (79), and the rotating rod (72) drives the two sets of photovoltaic panels (5) to close, so as to protect the photovoltaic panels (5); S2: Move the frame (1), by pressing the limit rod (85) into the slide groove (83), so that the limit rod (85) continuously presses the spring (84) toward the inner wall of the slide groove (83), causing the spring (84) to deform, and at the same time the limit rod (85) slides into the slide groove (83), and then the socket (82) is driven to slide on the plug block (81) through the universal wheel (2), until the socket (82) drives the limit groove (86) to slide to align with the limit rod (85), at this time, the restoring force of the spring (84) will push the limit rod (85) to return and slide in the slide groove (83) until the limit rod (85) passes through the limit groove (86), and then the remaining three groups are installed on the plug block (81) in the same way, and then the frame (1) is driven to move by the universal wheel (2); S3: Cleaning the photovoltaic panel (5), by sliding the cleaning plate (96) and the second threaded rod (97) into the fixing frame (95), and making the cleaning plate (96) fit the surface of the photovoltaic panel (5) until the nut (98) on the second threaded rod (97) slides to align with the auxiliary groove (99), then rotating the nut (98) so that the nut (98) is threadedly rotated on the second threaded rod (97) and rotated into the auxiliary groove (99), and then the first threaded rod (92) is driven to rotate in the fixing seat (91) by the second motor (93), so that the first threaded rod (92) acts on the threaded block (94), and the threaded block (94) slides back and forth in the fixing seat (91), and then the cleaning plate (96) is synchronously driven by the threaded block (94) to clean the dust on the surface of the photovoltaic panel (5).

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