Energy-saving photovoltaic charging device for inland river electric extended-range cargo ship

Abstract

The invention belongs to the technical field of photovoltaic charging devices, and discloses an energy-saving inland river electric range-extended cargo ship photovoltaic charging device which comprises a photovoltaic device, the front side and the rear side of the photovoltaic device are both fixedly connected with protection bins, inner cavities of the protection bins are fixedly connected with mounting cylinders, inner cavities of the mounting cylinders are fixedly connected with reset coil springs, and the reset coil springs are fixedly connected with the photovoltaic device. A reset rod is fixedly connected to the center of the reset coil spring, a storage barrel is fixedly connected to the side, close to the center of the photovoltaic device, of the protection bin, a protection curtain is fixedly connected to the surface of the reset rod, a cleaning brush is fixedly connected to the left side of the protection curtain, and a first piston barrel is fixedly connected to the top end of the protection bin. And then the dust is blown to the top end of the photovoltaic device through the air blowing pipe, and the dust swept down from the top end of the photovoltaic device is blown away, so that dust sweeping through the cleaning brush and dust blowing through the air blowing pipe are achieved, and it is ensured that use of the top end of the photovoltaic device is not affected by foreign matter such as dust.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic charging devices, and in particular relates to an energy-saving photovoltaic charging device for an inland electric-type extended-range cargo ship. Background Art

[0002] A diesel generator is used in conjunction with a photovoltaic charging device to charge the range-extended battery, which is then used to drive the engine and in turn the inland range-extended cargo ship to achieve energy conservation and environmental protection. The photovoltaic charging device uses photovoltaic panels to collect photovoltaics. During the use of the photovoltaic panels on the range-extended cargo ship, as the air flows, dust and other foreign matter will fall on the surface of the photovoltaic panels. More dust and other foreign matter may cause the photovoltaic panels to be blocked, thereby reducing the charging efficiency of the photovoltaic charging device for the range-extended battery. In order to maximize the use of the photovoltaic charging device, multiple photovoltaic panels are often set up, and multiple photovoltaic panels are more troublesome to clean. Summary of the invention

[0003] The object of the present invention is to provide an energy-saving photovoltaic charging device for inland electric extended-range cargo ships to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a photovoltaic charging device for an energy-saving inland electric extended-range cargo ship, comprising a photovoltaic device, wherein the front and rear sides of the photovoltaic device are fixedly connected with a protective bin, the inner cavity of the protective bin is fixedly connected with a mounting cylinder, the inner cavity of the mounting cylinder is fixedly connected with a reset coil spring, the center of the reset coil spring is fixedly connected with a reset rod, the side of the protective bin close to the center of the photovoltaic device is fixedly connected with a storage cylinder, the surface of the reset rod is fixedly connected with a protective curtain, the left side of the protective curtain is fixedly connected with a cleaning brush, the top of the protective bin is fixedly connected with a piston cylinder 1, the inner cavity of the piston cylinder 1 is fixedly connected with a reset spring 1, the right side of the reset spring 1 is fixedly connected with a piston rod, the left side of the piston rod is fixedly connected with a linkage rod, the left side of the linkage rod is fixedly connected with a ventilation pipe, and the side of the ventilation pipe close to the center of the photovoltaic device is fixedly connected with an air blowing pipe.

[0005] Preferably, a piston plate is fixedly connected to the bottom end of the photovoltaic device, a second return spring is fixedly connected to the bottom end of the photovoltaic device, and a second piston cylinder is fixedly connected to the bottom end of the second return spring.

[0006] Preferably, the top of the piston cylinder 2 is fixedly connected to a connecting tube 1, the top of the connecting tube 1 is fixedly connected to a telescopic tube 1, the right side of the piston cylinder 1 is fixedly connected to a telescopic tube 2, the bottom end of the photovoltaic device is fixedly connected to a water collecting bin, and the bottom end of the water collecting bin is fixedly connected to a slow water outlet pipe.

[0007] Preferably, an air nozzle is fixedly mounted on the bottom end of the air blowing pipe, the air blowing pipe is located below the storage tube, and the bottom end of the cleaning brush is in contact with the top end of the photovoltaic device.

[0008] Preferably, the piston rod is located at the center of the inner cavity of the return spring 1, the piston rod is in contact with the inner wall of the piston cylinder 1, the piston cylinder 1 is connected with the bottom of the inner cavity of the piston cylinder 2 through the telescopic tube 2, and the ventilation pipe is connected with the top of the inner cavity of the piston cylinder 2 through the connecting tube 1 and the telescopic tube 1.

[0009] Preferably, both left and right ends of the connecting tube 1 are fixedly connected with one-way air outlet valves, the bottom end of the piston cylinder 2 is fixedly connected with the connecting tube 2, and both upper and lower ends of the piston cylinder 2 are fixedly connected with one-way air inlet valves.

[0010] Preferably, a mounting plate is fixedly connected to the bottom end of the second piston cylinder, a fixing ring is fixedly connected to the right side of the photovoltaic device, and the second telescopic tube is fixedly sleeved in the inner cavity of the fixing ring.

[0011] Preferably, one end of the reset rod located in the inner cavity of the installation tube is fixedly connected to the reset coil spring, and the surface of the reset rod located in the inner cavity of the storage tube is fixedly connected to the protective curtain.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. In the present invention, air is injected into an inner cavity of a piston cylinder to drive the piston rod to move, which in turn drives the linkage rod to move, and the linkage rod drives the cleaning brush to move, so that the top of the photovoltaic device is cleaned by the cleaning brush, and then the air enters the inner cavity of the ventilation pipe, and then enters the inner cavity of the air blowing pipe along the ventilation pipe, and then blows on the top of the photovoltaic device through the air blowing pipe to blow away the dust swept down from the top of the photovoltaic device, thereby achieving the cleaning of dust by the cleaning brush and the blowing of dust by the air blowing pipe, ensuring that the top of the photovoltaic device will not be affected by foreign matter such as dust.

[0014] 2. In the present invention, when the photovoltaic device is on a cargo ship, the cargo ship drives the photovoltaic device to shake, and the shaking of the photovoltaic device drives the piston plate to rise and fall in the inner cavity of the piston cylinder. At this time, shock absorption is performed by the elasticity of the second reset spring and the air pressure in the inner cavity of the second piston cylinder, thereby achieving shock absorption of the photovoltaic device and preventing the shaking of the ship body from causing damage to the components of the photovoltaic device.

[0015] 3. When it rains heavily, more rainwater enters the inner cavity of the water collecting bin, and thus cannot be quickly discharged from the slow outlet pipe. The rainwater drives the photovoltaic device to descend, thereby driving the piston plate to descend in the inner cavity of the second piston cylinder, squeezing the air in the inner cavity of the second piston cylinder into the inner cavity of the first piston cylinder, thereby driving the piston rod to move, and the piston rod drives the linkage rod to move, thereby driving the cleaning brush to move, and the cleaning brush pulls the protective curtain out of the inner cavity of the storage cylinder. When the protective curtain is pulled out, it drives the reset rod to rotate and the reset coil spring to contract. At this time, the top of the photovoltaic device is protected by the protective curtain, thereby avoiding as much as possible foreign objects falling on the top of the photovoltaic device due to strong wind and rain, causing damage to the top of the photovoltaic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of a connection of a connecting pipe of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of a connection of a telescopic tube structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection of the cleaning brush of the structure of the present invention;

[0020] Figure 5 For the present invention Figure 4 The connection diagram at A is enlarged;

[0021] Figure 6 This is a schematic diagram of the connection of the photovoltaic panels of the structure of the present invention.

[0022] In the figure: 1. Photovoltaic device; 2. Protection compartment; 3. Mounting cylinder; 4. Reset coil spring; 5. Reset rod; 6. Storage cylinder; 7. Protection curtain; 8. Cleaning brush; 9. Piston cylinder one; 10. Reset spring one; 11. Piston rod; 12. Linkage rod; 13. Mounting plate; 14. Ventilation pipe; 15. Blowing pipe; 16. Piston plate; 17. Reset spring two; 18. Piston cylinder two; 19. Connecting pipe one; 20. Telescopic pipe one; 21. One-way air outlet valve; 22. Connecting pipe two; 23. Telescopic pipe two; 24. Fixed ring; 25. Water collection chamber; 26. Slow water outlet pipe; 27. One-way air inlet valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figures 1 to 6 As shown, an embodiment of the present invention provides an energy-saving inland electric extended-range cargo ship photovoltaic charging device, including a photovoltaic device 1, a protection bin 2 is fixedly connected to the front and rear sides of the photovoltaic device 1, a mounting cylinder 3 is fixedly connected to the inner cavity of the protection bin 2, a reset coil spring 4 is fixedly connected to the inner cavity of the mounting cylinder 3, a reset rod 5 is fixedly connected to the center of the reset coil spring 4, a storage cylinder 6 is fixedly connected to the side of the protection bin 2 close to the center of the photovoltaic device 1, a protection curtain 7 is fixedly connected to the surface of the reset rod 5, a cleaning brush 8 is fixedly connected to the left side of the protection curtain 7, a piston cylinder 9 is fixedly connected to the top of the protection bin 2, a reset spring 10 is fixedly connected to the inner cavity of the piston cylinder 9, a piston rod 11 is fixedly connected to the right side of the reset spring 10, a linkage rod 12 is fixedly connected to the left side of the piston rod 11, a vent pipe 14 is fixedly connected to the left side of the linkage rod 12, and a blow pipe 15 is fixedly connected to the side of the vent pipe 14 close to the center of the photovoltaic device 1;

[0025] The working principle and beneficial effects of the above technical solution are as follows: air is injected into the inner cavity of the piston cylinder 9 to drive the piston rod 11 to move, thereby driving the linkage rod 12 to move, and the linkage rod 12 drives the cleaning brush 8 to move, so that the top of the photovoltaic device 1 is cleaned by the cleaning brush 8, and then the air enters the inner cavity of the ventilation pipe 14, and then enters the inner cavity of the blowing pipe 15 along the ventilation pipe 14, and then blows on the top of the photovoltaic device 1 through the blowing pipe 15 to blow away the dust swept down from the top of the photovoltaic device 1, thereby realizing the sweeping of dust by the cleaning brush 8 and the blowing of dust by the blowing pipe 15, ensuring that the top of the photovoltaic device 1 will not be affected by foreign matter such as dust.

[0026] As shown in the installation cylinder 3, in one embodiment, the bottom end of the photovoltaic device 1 is fixedly connected with a piston plate 16, the bottom end of the photovoltaic device 1 is fixedly connected with a return spring 17, and the bottom end of the return spring 17 is fixedly connected with a piston cylinder 18;

[0027] The working principle and beneficial effects of the above technical solution are as follows: when the photovoltaic device 1 is on a cargo ship, the cargo ship drives the photovoltaic device 1 to shake, and the shaking of the photovoltaic device 1 drives the piston plate 16 to rise and fall in the inner cavity of the piston cylinder 18. At this time, the elasticity of the return spring 17 and the air pressure in the inner cavity of the piston cylinder 18 are used for shock absorption, thereby achieving shock absorption of the photovoltaic device 1 and preventing the shaking of the ship from causing damage to the components of the photovoltaic device 1.

[0028] As shown in the protective bin 2, in one embodiment, the top of the piston cylinder 18 is fixedly connected with a connecting pipe 19, the top of the connecting pipe 19 is fixedly connected with a telescopic pipe 20, the right side of the piston cylinder 19 is fixedly connected with a telescopic pipe 23, the bottom end of the photovoltaic device 1 is fixedly connected with a water collection bin 25, and the bottom end of the water collection bin 25 is fixedly connected with a slow water outlet pipe 26;

[0029] The working principle and beneficial effects of the above technical solution are as follows: when the piston plate 16 moves downward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 is transported to the inner cavity of the piston cylinder 19 along the telescopic tube 23; when the piston plate 16 moves upward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 is squeezed out along the connecting tube 19 and enters the inner cavity of the blowing pipe 15 along the telescopic tube 20 and blows on the top of the photovoltaic device 1; when it rains lightly, less rainwater enters the inner cavity of the water collecting bin 25 and is slowly discharged through the slow water outlet pipe 26; when it rains heavily, more rainwater enters the inner cavity of the water collecting bin 25, and thus cannot be discharged from the slow water outlet pipe 26. The pipe 26 is completely discharged quickly, and the rain drives the photovoltaic device 1 to descend, thereby driving the piston plate 16 to descend in the inner cavity of the piston cylinder 18, squeezing the air in the inner cavity of the piston cylinder 18 into the inner cavity of the piston cylinder 1 9, thereby driving the piston rod 11 to move, and the piston rod 11 drives the linkage rod 12 to move, thereby driving the cleaning brush 8 to move, and the cleaning brush 8 pulls the protective curtain 7 out of the inner cavity of the storage cylinder 6. When the protective curtain 7 is pulled out, it drives the reset rod 5 to rotate and the reset coil spring 4 to contract. At this time, the top of the photovoltaic device 1 is protected by the protective curtain 7, so as to avoid as much as possible that foreign objects fall on the top of the photovoltaic device 1 due to strong wind and rain, causing damage to the top of the photovoltaic device 1.

[0030] As shown in the installation tube 3, in one embodiment, an air nozzle is fixedly installed at the bottom end of the air blowing tube 15, the air blowing tube 15 is located below the storage tube 6, and the bottom end of the cleaning brush 8 is in contact with the top end of the photovoltaic device 1;

[0031] The working principle and beneficial effects of the above technical solution are as follows: through the air nozzle at the bottom end of the air blowing pipe 15, the air blowing pipe 15 is located below the storage tube 6, so that the air blowing pipe 15 can blow air stably on the top of the photovoltaic device 1, and the photovoltaic device 1 is generally composed of multiple photovoltaic panels, and then through the storage tube 6, the cleaning brush 8, and the air blowing pipe 15 are located between the connection points of each photovoltaic panel, thereby preventing the storage tube 6, the cleaning brush 8, and the air blowing pipe 15 from blocking the top of the photovoltaic device 1.

[0032] As shown in the installation cylinder 3, in one embodiment, the piston rod 11 is located at the center of the inner cavity of the return spring 10, the piston rod 11 is in contact with the inner wall of the piston cylinder 9, the piston cylinder 9 is connected with the bottom of the inner cavity of the piston cylinder 18 through the telescopic tube 23, and the vent pipe 14 is connected with the top of the inner cavity of the piston cylinder 18 through the connecting pipe 19 and the telescopic tube 20;

[0033] The working principle and beneficial effects of the above technical solution are as follows: when the piston plate 16 moves downward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 can enter the inner cavity of the piston cylinder 1 9 along the telescopic tube 23, thereby driving the piston rod 11 to move, and then when the piston plate 16 moves upward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 can be blown out from the blowing pipe 15 to the top of the photovoltaic device 1 along the connecting tube 19 and the telescopic tube 20 to remove dust.

[0034] As shown in the installation cylinder 3, in one embodiment, both left and right ends of the connecting pipe 19 are fixedly connected with a one-way air outlet valve 21, the bottom end of the piston cylinder 2 18 is fixedly connected with a connecting pipe 22, and both upper and lower ends of the piston cylinder 2 18 are fixedly connected with a one-way air inlet valve 27;

[0035] The working principle and beneficial effects of the above technical solution are as follows: through the one-way air outlet valves 21 at the left and right ends of the connecting tube 19, the air in the inner cavity of the piston cylinder 18 can be discharged to the inner cavity of the connecting tube 19 through the one-way air outlet valves 21, and then through the connecting tube 22, the two piston cylinders 18 can be connected, so that the inner cavity of the piston cylinder 18 can discharge enough air along the telescopic tube 23 to the inner cavity of the piston cylinder 19, and then through the one-way air inlet valves 27 at the upper and lower ends of the piston cylinder 18, the external air can enter the inner cavity of the piston cylinder 18 through the one-way air inlet valves 27.

[0036] As shown in the protective chamber 2, in one embodiment, the bottom end of the second piston cylinder 18 is fixedly connected to the mounting plate 13, the right side of the photovoltaic device 1 is fixedly connected to the fixing ring 24, and the second telescopic tube 23 is fixedly sleeved in the inner cavity of the fixing ring 24;

[0037] The working principle and beneficial effects of the above technical solution are as follows: through the mounting plate 13 at the bottom end of the piston cylinder 18, the mounting plate 13 can be installed on the cargo ship, and then through the fixing ring 24 on the right side of the photovoltaic device 1, the fixing ring 24 can support and fix the telescopic tube 23, so that the top end of the telescopic tube 23 can be fixed.

[0038] As shown in the figure, in one embodiment, the reset rod 5 is located at one end of the inner cavity of the installation tube 3 and is fixedly connected to the reset coil spring 4, and the reset rod 5 is located at the surface of the inner cavity of the storage tube 6 and is fixedly connected to the protective curtain 7;

[0039] The working principle and beneficial effects of the above technical solution are as follows: one end of the reset rod 5 located in the inner cavity of the mounting tube 3 is fixedly connected to the reset coil spring 4, so that when the protective curtain 7 is pulled out of the inner cavity of the storage tube 6, the reset coil spring 4 can be driven to contract. When the cleaning brush 8 is reset, the reset coil spring 4 drives the reset rod 5 to rotate in the opposite direction, thereby contracting the protective curtain 7 into the inner cavity of the storage tube 6 for storage.

[0040] Working principle and use process: The mounting plate 13 is installed on the hull. When the hull shakes, the photovoltaic device 1 shakes, thereby driving the piston plate 16 to rise and fall in the inner cavity of the piston cylinder 18, and the photovoltaic device 1 is damped by the elasticity of the return spring 17 and the air pressure in the inner cavity of the piston cylinder 18;

[0041] When the piston plate 16 moves downward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 is output along the telescopic tube 23 through the piston plate 16, and then enters the inner cavity of the piston cylinder 1 9 through the telescopic tube 23, pushing the piston rod 11 in the inner cavity of the piston cylinder 1 9 to move, and then pushing the linkage rod 12 to drive the cleaning brush 8 to move, so that the cleaning brush 8 cleans the top surface of the photovoltaic device 1;

[0042] When the piston plate 16 moves upward in the inner cavity of the piston cylinder 18, the air in the inner cavity of the piston cylinder 18 is output from the telescopic tube 20 along the connecting tube 19, and then transported to the inner cavity of the blowing tube 15 along the telescopic tube 20 and the vent pipe 14, and then blown to the top of the photovoltaic device 1 through the blowing tube 15, so as to blow away the swept dust;

[0043] When the piston plate 16 moves in the inner cavity of the piston cylinder 18, the external air is drawn into the inner cavity of the piston cylinder 18 through the one-way air intake valve 27;

[0044] When it rains, rainwater enters the inner cavity of the water collecting bin 25 and is slowly discharged through the slow water outlet pipe 26. However, when the wind and rain are strong, there is more rainwater in the inner cavity of the water collecting bin 25, which drives the descent of the photovoltaic device 1 to squeeze the air in the inner cavity of the piston cylinder 18, thereby driving the cleaning brush 8 to move through the piston rod 11 in the inner cavity of the piston cylinder 19. When the cleaning brush 8 moves, it drives the protective curtain 7 to be pulled out from the inner cavity of the storage cylinder 6, and drives the reset coil spring 4 to be tightened through the reset rod 5. Due to the weight of the rainwater in the inner cavity of the water collecting bin 25, the photovoltaic device 1 will not be reset by the tension of the reset spring 17, thereby shielding the top of the photovoltaic device 1 through the protective curtain 7.

[0045] After the rainwater in the inner cavity of the water collecting bin 25 is discharged through the slow water outlet pipe 26 , the reset rod 5 is driven to rotate by the reset coil spring 4 , thereby pulling the protective curtain 7 back into the inner cavity of the storage cylinder 6 .

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic charging device for an energy-saving inland electric-powered extended-range cargo ship, comprising a photovoltaic device (1), characterized in that: The photovoltaic device (1) is fixedly connected to a protective bin (2) on both the front and rear sides; the inner cavity of the protective bin (2) is fixedly connected to a mounting tube (3); the inner cavity of the mounting tube (3) is fixedly connected to a reset coil spring (4); the center of the reset coil spring (4) is fixedly connected to a reset rod (5); a side of the protective bin (2) close to the center of the photovoltaic device (1) is fixedly connected to a storage tube (6); the surface of the reset rod (5) is fixedly connected to a protective curtain (7); the left side of the protective curtain (7) is fixedly connected to A cleaning brush (8), the top of the protective chamber (2) is fixedly connected to a piston cylinder (9), the inner cavity of the piston cylinder (9) is fixedly connected to a return spring (10), the right side of the return spring (10) is fixedly connected to a piston rod (11), the left side of the piston rod (11) is fixedly connected to a linkage rod (12), the left side of the linkage rod (12) is fixedly connected to a ventilation pipe (14), and the ventilation pipe (14) is fixedly connected to a blowing pipe (15) on one side close to the center of the photovoltaic device (1).

2. According to claim 1, a photovoltaic charging device for an energy-saving inland electric extended-range cargo ship is characterized in that: The bottom end of the photovoltaic device (1) is fixedly connected to a piston plate (16), the bottom end of the photovoltaic device (1) is fixedly connected to a second return spring (17), and the bottom end of the second return spring (17) is fixedly connected to a second piston cylinder (18).

3. The photovoltaic charging device for an energy-saving inland electric-type extended-range cargo ship according to claim 2 is characterized in that: The top of the piston cylinder 2 (18) is fixedly connected to a connecting pipe 1 (19), the top of the connecting pipe 1 (19) is fixedly connected to a telescopic pipe 1 (20), the right side of the piston cylinder 1 (9) is fixedly connected to a telescopic pipe 2 (23), the bottom end of the photovoltaic device (1) is fixedly connected to a water collection bin (25), and the bottom end of the water collection bin (25) is fixedly connected to a slow water outlet pipe (26).

4. The photovoltaic charging device for an energy-saving inland electric extended-range cargo ship according to claim 1 is characterized in that: An air nozzle is fixedly installed at the bottom end of the air blowing pipe (15), the air blowing pipe (15) is located below the storage tube (6), and the bottom end of the cleaning brush (8) is in contact with the top end of the photovoltaic device (1).

5. The photovoltaic charging device for an energy-saving inland electric extended-range cargo ship according to claim 3 is characterized by: The piston rod (11) is located at the center of the inner cavity of the return spring (10), and the piston rod (11) is in contact with the inner wall of the piston cylinder (9). The piston cylinder (9) is connected to the bottom of the inner cavity of the piston cylinder (18) through the telescopic tube (23), and the ventilation pipe (14) is connected to the top of the inner cavity of the piston cylinder (18) through the connecting pipe (19) and the telescopic tube (20).

6. The photovoltaic charging device for an energy-saving inland electric extended-range cargo ship according to claim 3 is characterized by: The left and right ends of the connecting pipe 1 (19) are fixedly connected with a one-way air outlet valve (21), the bottom end of the piston cylinder 2 (18) is fixedly connected with a connecting pipe 2 (22), and the upper and lower ends of the piston cylinder 2 (18) are fixedly connected with a one-way air intake valve (27).

7. The photovoltaic charging device for an energy-saving inland electric extended-range cargo ship according to claim 3 is characterized by: The bottom end of the second piston cylinder (18) is fixedly connected to a mounting plate (13), the right side of the photovoltaic device (1) is fixedly connected to a fixing ring (24), and the second telescopic tube (23) is fixedly sleeved in the inner cavity of the fixing ring (24).

8. The photovoltaic charging device for an energy-saving inland electric extended-range cargo ship according to claim 1 is characterized in that: The reset rod (5) is located at one end of the inner cavity of the installation tube (3) and is fixedly connected to the reset coil spring (4); the reset rod (5) is located at the surface of the inner cavity of the storage tube (6) and is fixedly connected to the protective curtain (7).

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