Semi-trailer logistics van using solar energy to provide auxiliary power

Abstract

The semi-trailer logistics van using the solar energy to provide the auxiliary power comprises a tractor and a semi-trailer frame which are connected, a hub motor is arranged in a driven wheel installed at the bottom of the semi-trailer frame to provide the auxiliary power for a semi-trailer, and the semi-trailer frame and the tractor act together to provide the auxiliary power for the semi-trailer. And the normal trafficability of the whole vehicle in severe road environments such as climbing and downhill can be improved. After the tractor is separated from the semitrailer, the semitrailer can turn and move under the rotating speed difference of the hub motors on the two sides, the semitrailer can autonomously move to the designated loading and unloading position after being separated from the tractor, the tractor does not need to be controlled for backing up and other operations, and the tractor only needs to pull the semitrailer to the position near the designated loading and unloading position. The loading and unloading efficiency is improved to a certain extent. A power generation box body with a solar panel is further installed on the carriage, necessary electric energy is provided for the hub motor and other power elements, the running endurance of the whole vehicle can be effectively improved, a cleaning rotary drum is further arranged in the power generation box body, the solar panel can move to the position of the cleaning rotary drum to be cleaned, and the surface cleanliness is improved so that the power generation performance can be ensured.

Description

Technical Field

[0001] The invention relates to the field of hybrid drive new energy vehicles, in particular to a semi-trailer logistics van which utilizes solar energy to provide auxiliary power. Background Art

[0002] A semi-trailer is a trailer with an axle placed behind the center of gravity of the vehicle and equipped with a communication device that can transmit horizontal and vertical forces to the tractor. It is mainly used to transport large goods that are large in size and difficult to split. Compared with single-body vehicles, semi-trailers can better improve the comprehensive economic efficiency of road transportation and promote the organizational form of logistics in my country to a certain extent. Existing semi-trailers do not have a power device and only rely on the tractor as a power source to achieve their own movement. When climbing, descending and in relatively harsh road conditions, the driving load distribution is unreasonable, which can easily affect the normal driving of the semi-trailer. When loading and unloading goods, it is also necessary to move the semi-trailer to the designated position by reversing the tractor. Due to the long length of the semi-trailer, the field of vision when reversing and turning is poor, and the overall loading and unloading efficiency will also be significantly reduced. Summary of the invention

[0003] The purpose of the present invention is to provide a semi-trailer logistics box truck that uses solar energy to provide auxiliary power. A hub motor is installed in the driven wheel of the semi-trailer to provide auxiliary power for the semi-trailer, and the semi-trailer travels together with a tractor. After the tractor and the semi-trailer are separated, the semi-trailer can move to a designated position for loading and unloading under the drive of the hub motor, thereby solving the problems in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a semi-trailer logistics box car that uses solar energy to provide auxiliary power, including a connected tractor and a semi-trailer frame, a traction wheel is installed at the bottom of the tractor, a driven wheel is installed at the bottom of the semi-trailer frame, a hub motor is arranged in the driven wheel, both sides of the semi-trailer frame close to one end of the tractor are equipped with vertically retractable legs, and a moving wheel is arranged at the bottom of the legs. A closed carriage is installed on the semi-trailer frame, a power generation box is provided on the top of the carriage, a plurality of solar panels are installed in the power generation box, a horizontally arranged roller shutter is installed on the upper part of the power generation box, the solar panel is located at the lower part of the roller shutter, a cleaning drum is installed at the front end of the power generation box, each solar panel can be moved to the position of the cleaning drum for cleaning, and a vehicle-mounted power supply is also provided in the carriage, wherein the solar panel is connected to the vehicle-mounted power supply and the hub motor through a power transmission line. The inside of the power generation box is provided with first guide plates arranged side by side, a corresponding second guide plate is provided on the upper side of the first guide plate, a guide groove is formed between the first guide plate and the second guide plate, the solar panel is located between the guide plates on both sides, rollers are installed on both sides of the solar panel through the wheel axle, groove plates are provided on the side of the rollers, the groove plates are clamped on the first guide plate and the second guide plate, and an inclined groove matching the roller is also provided on the first guide plate, a first elastic contact piece is installed in the power generation box between the first guide plates, a second elastic contact piece is provided at the bottom of the solar panel, and the rollers are provided with groove plates on the sides of the rollers. When the wheel is in the inclined groove, the second elastic contact piece contacts the first elastic contact piece to form a passage. A reciprocating slider is also provided on the outside of the first guide plate. A solenoid valve is installed on the slider. A folding rod is connected to the output shaft of the solenoid valve. A horizontally arranged channel steel frame is installed on the rotating shaft of the roller. When the solenoid valve is energized, the folding rod can move up into the channel steel frame, and lift the channel steel frame up to move the roller from the inclined groove to the guide groove. When the slider moves toward the cleaning drum, it can pull the solar panel across the inclined groove with the roller to the cleaning drum position. A transmission chain is installed in the power generation box outside the first guide plate, and sprockets are installed at both ends of the transmission chain. The slider is fixed on the transmission chain. A first motor is installed in the power generation box. The output shaft of the first motor is connected to the rotating shaft of one of the sprockets, and the on-board power supply is connected to the first motor through a transmission line. A T-shaped guide block is installed on the slider, a T-shaped guide groove matching the T-shaped guide block is opened on the wall of the power generation box, a first conductive sheet is arranged in the T-shaped guide groove, a second conductive sheet in contact with the first conductive sheet is installed on the slider, the second conductive sheet is connected to the solenoid valve through a circuit, and when the first conductive sheet is energized, the folding rod on the solenoid valve can rise vertically.A storage rack that can be pulled out and moved is installed inside the carriage, racks are provided on both sides of the length direction of the storage rack, a second motor is installed on both sides of the carriage, a gear matched with the rack is provided on the output shaft of the second motor, the vehicle power supply is connected to the second motor through a transmission line, and the second motor can drive the storage rack to move in and out of the carriage when it is started, a first stop frame is fixedly arranged at the front end of the storage rack, and a rotatable second stop frame is installed at the rear end of the storage rack. After the storage rack is pulled out of the carriage, the second stop frame can be rotated to contact the ground to form a support. The second stop frame is installed at the end of the storage rack through a hinge shaft, a supporting wheel is installed at the upper end of the second stop frame, a limiting column is provided on the side of the second stop frame, and a rotatable hook rod is hingedly installed on the storage rack. When the hook rod is hung on the limiting column, the second stop frame is in a vertical state on the upper side or lower side of the storage rack. A cleaning water tank is installed at the front end of the generating box body, and an electric water pump is installed in the cleaning water tank. A spray pipe is installed on the water outlet of the electric water pump, and the drain outlet of the spray pipe is located at the rear side of the cleaning drum. A third motor is also installed at the front end of the generating box body, and a drum shaft is installed on the output shaft of the third motor. One end of the roller curtain in the length direction is fixed on the drum shaft, and a walking wheel is installed at the other end of the roller curtain in the length direction. A fourth motor is provided on the rotating shaft of the walking wheel, and a guide rail groove matching the walking wheel is opened on the top of the generating box body. When the third motor is started, it can drive the roller curtain to rotate onto the drum shaft and leak out the solar panel at the bottom, wherein the electric water pump, the third motor and the fourth motor are all connected to the vehicle power supply through the transmission line.

[0005] The positive effect of the present invention is that: the semi-trailer logistics box car using solar energy to provide auxiliary power according to the present invention includes a connected tractor and a semi-trailer frame, and a hub motor is installed in the driven wheel installed at the bottom of the semi-trailer frame to provide auxiliary power for the semi-trailer, and work together with the tractor to improve the normal passing ability of the entire vehicle in harsh road environments such as climbing and descending. After the tractor is separated from the semi-trailer, the semi-trailer can realize turning and movement under the speed difference of the hub motors on both sides, and can move to the designated loading and unloading position autonomously after leaving the tractor, without the need to control the tractor to perform reverse operations, etc. The tractor can pull the semi-trailer to the vicinity of the designated loading and unloading position, thereby improving the loading and unloading efficiency to a certain extent. A power generation box with a solar panel is also installed on the car body to provide the necessary electrical energy for the hub motor and other power components, which can effectively increase the driving endurance of the whole vehicle, and a cleaning drum is also provided in the power generation box, and the solar panel can be moved to the cleaning drum position for cleaning, thereby improving the surface cleanliness and ensuring the power generation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A top view of Figure 3is a top sectional view of the generator box; Figure 4 yes Figure 3 Partial view of the AA section view; Figure 5 yes Figure 3 Middle BB section view; Figure 6 yes Figure 5 A partial enlarged view of middle I; Figure 7 It is a schematic diagram of the state where the roller enters the guide groove from the inclined groove; Figure 8 It is a schematic diagram of the state where the solar panel moves to the cleaning drum position; Fig. 9 This is a schematic diagram of the state where the storage rack in the carriage is pulled out; Fig.10 yes Fig. 9 A partial enlarged view of middle II; Fig.11 It is a schematic diagram of the state after the semi-trailer frame and the tractor are separated; Fig.12 It is a schematic diagram showing the connection between the vehicle power supply and various electrical components. DETAILED DESCRIPTION

[0007] The semi-trailer logistics van of the present invention uses solar energy to provide auxiliary power, such as Figure 1 and Figure 2 As shown, it includes a tractor 1 and a semi-trailer frame 2 connected to each other, a traction wheel 3 is installed at the bottom of the tractor 1, and a driven wheel 4 is installed at the bottom of the semi-trailer frame 2. A hub motor 5 is provided in the driven wheel 4. The hub motor 5 can provide auxiliary power for the semi-trailer frame 2 to achieve normal power assistance when going uphill or braking when going downhill, thereby ensuring the normal movement of the vehicle.

[0008] Both sides of the semi-trailer frame 2 near one end of the tractor 1 are equipped with vertically retractable legs 6, and the bottom of the legs 6 is provided with moving wheels 7. When the vehicle is moving normally, the legs 6 are in a retracted state and will not affect the driving of the vehicle. When it is necessary to disassemble the tractor 1 and the semi-trailer frame 2, the legs 6 are adjusted to move downward, the moving wheels 7 are in contact with the ground to form support, and the legs 6 are controlled to lift the semi-trailer frame 2 to the specified dismantling height position, and then the connection mechanism between the tractor 1 and the semi-trailer frame 2 is disassembled. The legs 6 can be existing telescopic cylinder support feet, and can also be composed of a two-speed gear box, a support sleeve, a support rod, a transmission screw and a support plate, which are used to provide support after the semi-trailer is separated from the tractor to ensure the stability of the vehicle in a stationary state.

[0009] The tractor 1 can be driven away directly after being disassembled, and the wheel hub motor 5 in the semi-trailer frame 2 can provide the required power for the movement of the semi-trailer. When there is a speed difference between the wheel hub motors 5 on both sides, the semi-trailer can turn, ensuring that the semi-trailer can move to the designated loading and unloading position without the need for the tractor 1 to drive, which improves the transportation and loading and unloading efficiency of logistics to a certain extent. Among them, a Chinese public patent with patent number "CN202311310728.X" can also be provided between the wheel hub motor 5 and the driven wheel 4: an electric drive axle, differential, shift fork, bridge housing, wheel hub, drive motor, bracket and connecting rod and other structures described in an electric drive axle unit for vehicle power assistance, so as to realize the electric power drive of the driven wheel 4.

[0010] A closed carriage 8 is installed on the semi-trailer frame 2, and the carriage 8 is used to load goods. A power generation box 9 is provided on the top of the carriage 8. Figure 3 As shown, a number of solar panels 10 are installed in the power generation box 9, and the solar panels 10 can receive sunlight and convert it into electrical energy for storage. A horizontally arranged roller blind 11 is installed on the upper part of the power generation box 9, and the solar panels 10 are located below the roller blind 11. When the solar panels 10 need to be used for power generation, the roller blind 11 is opened to expose the solar panels 10 at the bottom. When encountering extreme weather such as hail during driving, the roller blind 11 can be closed to provide necessary protection for the solar panels 10 inside.

[0011] In order to prevent the accumulation of dust and other dirt on the solar panel 10 from affecting its power generation performance, a cleaning drum 12 is installed at the front end of the power generation box 9, and each solar panel 10 can be moved to the cleaning drum 12 for cleaning. A vehicle power supply 44 is also provided in the carriage 8, wherein the solar panel 10 is connected to the vehicle power supply 44 and the wheel hub motor 5 through a power transmission line, and a charging and discharging inverter circuit is also provided inside the vehicle power supply 44, which can realize the storage and use of the converted electric energy.

[0012] The arrangement of the above structure enables the vehicle to realize the corresponding power generation function during driving, and provides necessary electric energy for the auxiliary drive of the hub motor 5. Moreover, due to the arrangement of the hub motor 5 on the semi-trailer, when the driver pulls the goods to the logistics park, he no longer needs to drive the tractor 1 to perform complicated operations such as reversing to reach the designated unloading location. After reaching the logistics point, the tractor 1 and the semi-trailer frame 2 can be disassembled, and the driver can take a rest or return as soon as possible. The disassembled semi-trailer frame 2 can be driven by the hub motor 5 and subsequently moved to the designated position for unloading of goods. On the one hand, it reduces the labor intensity of the staff, and on the other hand, it can also improve the overall transportation and loading and unloading efficiency.

[0013] Furthermore, in order to realize the movement of each solar panel 10 to the cleaning drum 12 for cleaning of surface dirt, and the movement and reset of the solar panel 10 after the cleaning is completed, as shown in FIG. Figure 4 and Figure 5 As shown, the generator box 9 is provided with first guide plates 13 arranged side by side inside, a corresponding second guide plate 14 is provided on the upper side of the first guide plate 13, a guide groove 15 is formed between the first guide plate 13 and the second guide plate 14, and the solar panel 10 is located between the guide plates on both sides.

[0014] Rollers 16 are installed on both sides of the solar panel 10 through axles, and groove plates 17 are provided on the sides of the rollers 16. The groove plates 17 are clamped on the first guide plates 13 and the second guide plates 14. The first guide plates 13 and the second guide plates 14 limit the rollers 16 in the width direction.

[0015] The first guide plate 13 is also provided with an inclined groove 18 that matches the roller 16. A first elastic contact piece 19 is installed in the power generation box 9 between the first guide plates 13. A second elastic contact piece 20 is provided at the bottom of the solar panel 10. When the roller 16 is located in the inclined groove 18, the second elastic contact piece 20 contacts the first elastic contact piece 19 to form a passage. At this time, the solar panel 10 is in a positioned power generation state. In the absence of external force, the roller 16 is located in the inclined groove 18 and is in a stable state. The setting of the elastic contact piece has a certain elastic floating error range, which is convenient for realizing the electrical connection between the solar panel 10 and the power generation line, and is less affected by movement.

[0016] A reciprocating slider 21 is also provided on the outer side of the first guide plate 13, and a solenoid valve 22 is installed on the slider 21. A folding rod 23 is connected to the output shaft of the solenoid valve 22. When the solenoid valve 22 is powered, the folding rod 23 can be moved vertically upward. A horizontally arranged channel steel frame 24 is installed on the rotating shaft of the roller 16. The channel steel frame 24 is located on the outer side of the guide plate. When the solenoid valve 22 is powered, the folding rod 23 can be moved upward into the channel steel frame 24, and the channel steel frame 24 can be lifted up to move the roller 16 from the inclined groove 18 to the guide groove 15.

[0017] When the slider 21 moves toward the cleaning drum 12, the folding rod 23 moves upward and can pull the channel steel frame 24 to move together, and can cross the inclined slot 18 equipped with the roller 16 to move to the position of the cleaning drum 12. After the cleaning is completed, the slider 21 moves in the opposite direction, and can pull the channel steel frame 24 and the solar panel 10 to move to the empty inclined slot 18. After that, the electromagnetic valve 22 loses power and the folding rod 23 retracts. Under the action of gravity, the roller 16 drops to the bottom of the inclined slot 18, and the solar panel 10 is positioned and placed.

[0018] In order to realize the reciprocating movement of the slider 21, a transmission chain 25 is installed in the power generation box 9 outside the first guide plate 13, and sprockets 26 are installed at both ends of the transmission chain 25. The slider 21 is fixed on the transmission chain 25. A first motor 27 is installed in the power generation box 9. The output shaft of the first motor 27 is connected to the rotating shaft of one of the sprockets 26. The on-board power supply 44 is connected to the first motor 27 through a transmission line. When the first motor 27 starts forward or reverse rotation, it can drive the slider 21 to reciprocate.

[0019] In order to ensure the stability of the vertical lifting of the rolling solar panel 10, two sets of rollers 16 are installed on both sides of each solar panel 10, and a slider 21 can be fixedly installed on the transmission chain 25. Two solenoid valves 22 are arranged on the slider 21. The folding rods 23 of the two solenoid valves 22 respectively correspond to the two channel steel frames 24 on the same side of a solar panel 10.

[0020] When the solar panel 10 of the above structure is in the state of power generation, the rollers 16 are all located in the inclined groove 18, and under the action of their own gravity, the first elastic contact piece 19 is ensured to contact with the second elastic contact piece 20 to form a power circuit, and the converted electric energy is stored in the vehicle power supply 44. The angle of the inclined groove 18 is relatively large. Even if the vehicle is traveling on a downhill section, the solar panel 10 will be firmly located in the inclined groove 18 under the action of its own weight, and will not move into the guide groove 15.

[0021] When a lot of dirt accumulates on the surface of one of the solar panels 10, affecting its power generation performance, it needs to be moved to the front cleaning drum 12. After cleaning, it needs to be moved to the initial position for reset. The process of implementing the above action is as follows: First, the first motor 27 starts to drive the transmission chain 25 to rotate, so that the slider 21 moves to the bottom position of the channel steel frame 24 where the solar panel 10 is to be cleaned, and then the transmission chain 25 stops rotating, the solenoid valve 22 on the slider 21 is energized, the folding rod 23 extends upward and enters the inside of the channel steel frame 24, and drives the roller 16 to move from the inclined groove 18 to the guide groove 15, and then the transmission chain 25 continues to rotate, the folding rod 23 moves to contact the vertical plate in front of the channel steel frame 24, and pulls it forward together, the transmission chain 25 drives the slider 21 to continue to move forward, and the folding rod 23 on the slider 21 can also synchronously drive the solar panel 10 to move forward in the guide groove 15, and the folding rod 23 after moving up will not be interfered by the channel steel frame 24 on the front solar panel 10.

[0022] The roller 16 of the solar panel 10 at the front position is located in the inclined groove 18. When the solar panel 10 to be cleaned moves through the inclined groove 18 in the guide groove 15, the groove plates 17 on both sides of the roller 16 will first contact the groove plates 17 located in the inclined groove 18. During the rotation process, after the groove plates 17 separate, the roller 16 passes over the inclined groove 18 and contacts the plane at the top of the first guide plate 13. The roller 16 is in horizontal movement throughout the whole process and will not fall into the inclined groove 18. When the solar panel 10 moves to the front end position of the guide groove 15, the transmission chain 25 stops rotating. At this time, the solar panel 10 is located at the bottom of the cleaning drum 12, and the dirt on the surface of the solar panel 10 can be cleaned.

[0023] After cleaning, the transmission chain 25 rotates in the opposite direction, the folding rod 23 moves to contact the vertical plate at the rear end of the channel steel frame 24, and drives the solar panel 10 to move in the opposite direction in the guide groove 15. After the solar panel 10 moves in the opposite direction to the initial position, the rollers 16 on both sides are located at the upper position of the inclined groove 18, and then the solenoid valve 22 is powered off, the folding rod 23 retracts and separates from the channel steel frame 24, and under the action of gravity, the rollers 16 fall into the inclined groove 18, and the second elastic contact piece 20 at the bottom of the solar panel 10 contacts the first elastic contact piece 19 again to form an energized circuit. At this point, the movement and reset of the solar panel 10 after cleaning is completed.

[0024] When the transmission chain 25 drives the slider 21 to move synchronously, the slider 21 may shake irregularly due to insufficient chain tension, affecting the normal pulling of the folding rod 23 on the channel steel frame 24. To solve the above problem, a T-shaped guide block 28 is installed on the slider 21, and a T-shaped guide groove 29 matching the T-shaped guide block 28 is opened on the wall of the power generation box 9, so as to achieve stable guiding of the movement of the slider 21.

[0025] In order to realize the on-off control of the slider 21 during the movement and ensure the corresponding action of the solenoid valve 22, a first conductive sheet 30 is provided in the T-shaped guide groove 29, and a second conductive sheet 31 in contact with the first conductive sheet 30 is installed on the slider 21. The second conductive sheet 31 is connected to the solenoid valve 22 through a line. After the first conductive sheet 30 is energized, the folding rod 23 on the solenoid valve 22 can rise vertically. A power on and off control circuit can be set on the first conductive sheet 30 to realize the corresponding control of the telescopic action of the solenoid valve 22.

[0026] Furthermore, in order to facilitate the loading and unloading of goods inside the carriage 8, a storage rack 32 that can be pulled out and moved is installed inside the carriage 8, racks 33 are provided on both sides of the length direction of the storage rack 32, and second motors 34 are installed on both sides of the carriage 8. A gear 35 that matches the rack 33 is provided on the output shaft of the second motor 34. The vehicle-mounted power supply 44 is connected to the second motor 34 through a power transmission line. The second motor 34 can drive the storage rack 32 to move in and out of the carriage 8 when it is started. A first stop frame 36 is fixedly set at the front end of the storage rack 32, and a rotatable second stop frame 37 is installed at the rear end of the storage rack 32. After the storage rack 32 is pulled out of the carriage 8, the second stop frame 37 can be rotated to contact the ground to form a support.

[0027] When using the above-mentioned storage rack 32 for loading goods, start the second motor 34 to move the rear end of the storage rack 32 out of the carriage 8, and rotate the second stop frame 37 to contact the ground to form a support for the storage rack 32. After that, the staff can be located at the end of the carriage 8 to load goods onto the storage rack 32. The first stop frame 36 can be used as a reference for loading goods. After loading a certain amount of goods, the second motor 34 can be reversed to drive the storage rack 32 loaded with goods into the carriage 8. By repeating the operation section by section, the loading of goods can be achieved, and the staff does not need to enter the interior of the carriage 8 to operate, which not only reduces the labor intensity of the staff, but also effectively improves the loading efficiency. When unloading goods, the above operation is also similar. The second motor 34 is used to make the storage rack 32 loaded with goods extend out of the carriage 8 section by section. The staff can unload the goods at the end of the carriage 8 without entering the interior of the carriage 8 to operate.

[0028] Furthermore, if Fig.10 As shown, the second stop frame 37 is installed at the end of the storage rack 32 through a hinge shaft 47, a supporting wheel 48 is installed at the upper end of the second stop frame 37, a limiting column 49 is provided on the side of the second stop frame 37, and a rotatable hook rod 50 is hingedly installed on the storage rack 32. When the hook rod 50 is hung on the limiting column 49, the second stop frame 37 is in a vertical state on the upper side or lower side of the storage rack 32. When the storage rack 32 is pulled out, the second stop frame 37 rotates to the lower side of the storage rack 32, the supporting wheel 48 contacts the ground, and the hook rod 50 is hung on the limiting column 49 to achieve the use limit of the second stop frame 37. When the storage rack 32 is pushed into the carriage 8, it is necessary to first separate the hook rod 50 from the limiting column 49, and then rotate the second stop frame 37 upward to a vertical state, and then hang the hook rod 50 on the limiting column 49 to achieve the limit of the second stop frame 37. A limiting convex edge can be set at the hinge position between the second blocking frame 37 and the storage rack 32, so that the second blocking frame 37 can be rotated to a limit position perpendicular to the storage rack 32, and the rotation of the second blocking frame 37 can be limited by cooperating with the hook rod 50.

[0029] Furthermore, a cleaning water tank 38 is installed at the front end of the power generation box body 9, and an electric water pump 39 is installed in the cleaning water tank 38. A spray pipe 40 is installed on the water outlet of the electric water pump 39, and the drain outlet of the spray pipe 40 is located at the rear side of the cleaning drum 12. By pumping water in the cleaning water tank 38 to clean the surface of the solar panel 10, the cleaning efficiency and quality of the solar panel 10 can be effectively improved.

[0030] Furthermore, in order to realize the horizontal movement of the roller blind 11 on the top of the power generation box 9, a third motor 41 is installed at the front end of the power generation box 9, and a drum shaft 42 is installed on the output shaft of the third motor 41. One end of the roller blind 11 in the length direction is fixed on the drum shaft 42, and a running wheel 45 is installed at the other end of the roller blind 11 in the length direction. A fourth motor 46 is arranged on the rotating shaft of the running wheel 45, and a guide groove 43 matching with the running wheel 45 is opened on the top of the power generation box 9. The electric water pump 39, the third motor 41 and the fourth motor 46 are all connected to the vehicle power supply 44 through the transmission line.

[0031] When the third motor 41 is started, the rolling curtain 11 can be driven to rotate onto the reel shaft 42 and expose the solar panel 10 at the bottom. When the fourth motor 46 is started, the rolling curtain 11 can be driven to move away from the reel shaft 42, covering the upper part of the solar panel 10 and forming a necessary protective effect. A deflector can also be installed on the top of the tractor 1. The height of the deflector is greater than the height of the reel for storing the rolling curtain 11 at the rear. The deflector can protect the rolling curtain 11 during driving and avoid being hit by large wind resistance or debris such as gravel.

[0032] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A semi-trailer logistics van that uses solar energy to provide auxiliary power, characterized in that: The invention comprises a tractor (1) and a semitrailer frame (2) connected to each other, a traction wheel (3) being installed at the bottom of the tractor (1), a driven wheel (4) being installed at the bottom of the semitrailer frame (2), a hub motor (5) being provided in the driven wheel (4), vertically retractable legs (6) being installed on both sides of one end of the semitrailer frame (2) close to the tractor (1), a movable wheel (7) being provided at the bottom of the legs (6), a closed carriage (8) being installed on the semitrailer frame (2), a generator box (9) being provided on the top of the carriage (8), and a motor (5) being provided on the generator box. A plurality of solar panels (10) are installed in the power box (9), a horizontally arranged rolling curtain (11) is installed on the upper part of the power box (9), and the solar panel (10) is located below the rolling curtain (11). A cleaning drum (12) is installed at the front end of the power box (9), and each solar panel (10) can be moved to the position of the cleaning drum (12) for cleaning. An on-board power supply (44) is also provided in the carriage (8), wherein the solar panel (10) is connected to the on-board power supply (44) and the wheel hub motor (5) through a power transmission line.

2. According to claim 1, a semi-trailer logistics van using solar energy to provide auxiliary power is characterized in that: The power generation box (9) is provided with first guide plates (13) arranged side by side inside, and a corresponding second guide plate (14) is provided on the upper side of the first guide plate (13). A guide groove (15) is formed between the first guide plate (13) and the second guide plate (14). The solar panel (10) is located between the two guide plates. Rollers (16) are installed on both sides of the solar panel (10) through axles. Grooved plates (17) are provided on the sides of the rollers (16). The grooved plates (17) are clamped on the first guide plate (13) and the second guide plate (14). The first guide plate (13) is also provided with an inclined groove (18) that matches the rollers (16). A first elastic contact sheet (19) is installed in the power generation box (9) between the first guide plates (13). A second elastic contact sheet (20) is provided at the bottom of the solar panel (10). The rollers (16) When located in the inclined groove (18), the second elastic contact piece (20) contacts the first elastic contact piece (19) to form a passage. A reciprocating slider (21) is also provided on the outer side of the first guide plate (13). A solenoid valve (22) is installed on the slider (21). A folding rod (23) is connected to the output shaft of the solenoid valve (22). A horizontally arranged channel steel frame (24) is installed on the rotating shaft of the roller (16). When the solenoid valve (22) is energized, the folding rod (23) can move upward into the channel steel frame (24), and lift the channel steel frame (24) upward to move the roller (16) from the inclined groove (18) to the guide groove (15). When the slider (21) moves toward the cleaning drum (12), it can pull the solar panel (10) across the inclined groove (18) equipped with the roller (16) and move to the position of the cleaning drum (12).

3. The semi-trailer logistics van using solar energy to provide auxiliary power according to claim 2, characterized in that: A transmission chain (25) is installed in a power generation box (9) outside the first guide plate (13), sprockets (26) are mounted on both ends of the transmission chain (25), a slider (21) is fixedly arranged on the transmission chain (25), a first motor (27) is installed in the power generation box (9), an output shaft of the first motor (27) is connected to a rotating shaft of one of the sprockets (26), and an on-board power supply (44) is connected to the first motor (27) via a power transmission line.

4. The semi-trailer logistics van using solar energy to provide auxiliary power according to claim 3, characterized in that: The slider (21) is provided with a T-shaped guide block (28); a T-shaped guide groove (29) matching with the T-shaped guide block (28) is provided on the wall of the power generation box (9); a first conductive sheet (30) is provided in the T-shaped guide groove (29); a second conductive sheet (31) in contact with the first conductive sheet (30) is provided on the slider (21); the second conductive sheet (31) is connected to the electromagnetic valve (22) via a circuit; when the first conductive sheet (30) is energized, the folding rod (23) on the electromagnetic valve (22) can rise vertically.

5. According to claim 1, a semi-trailer logistics van using solar energy to provide auxiliary power is characterized in that: A storage rack (32) that can be pulled out and moved is installed inside the carriage (8), racks (33) are provided on both sides of the storage rack (32) in the length direction, second motors (34) are installed on both sides of the carriage (8), and a gear (35) that matches the rack (33) is provided on the output shaft of the second motor (34), the vehicle-mounted power supply (44) is connected to the second motor (34) through a power transmission line, and the second motor (34) can drive the storage rack (32) to move in and out of the carriage (8) when it is started, a first stop frame (36) is fixedly arranged at the front end of the storage rack (32), and a rotatable second stop frame (37) is installed at the rear end of the storage rack (32), and after the storage rack (32) is pulled out of the carriage (8), the second stop frame (37) can be rotated to contact the ground to form a support.

6. The semi-trailer logistics van using solar energy to provide auxiliary power according to claim 5, characterized in that: The second blocking frame (37) is mounted on the end of the storage frame (32) via a hinge shaft (47); a supporting wheel (48) is mounted on the upper end of the second blocking frame (37); a limiting column (49) is provided on the side of the second blocking frame (37); a rotatable hook rod (50) is hingedly mounted on the storage frame (32); when the hook rod (50) is hung on the limiting column (49), the second blocking frame (37) is in a vertical state on the upper side or the lower side of the storage frame (32).

7. The semi-trailer logistics van using solar energy to provide auxiliary power according to claim 1, characterized in that: A cleaning water tank (38) is installed at the front end of the power generation box (9), an electric water pump (39) is installed in the cleaning water tank (38), a spray pipe (40) is installed on the water outlet of the electric water pump (39), and the water outlet of the spray pipe (40) is located at the rear side of the cleaning drum (12). A third motor (41) is also installed at the front end of the power generation box (9), and a reel shaft (42) is installed on the output shaft of the third motor (41). One end of the rolling curtain (11) in the length direction is fixed on the reel shaft (42). The rolling curtain (11) 11) A travel wheel (45) is installed at the other end in the length direction, and a fourth motor (46) is installed on the rotating shaft of the travel wheel (45). A guide rail groove (43) matching with the travel wheel (45) is opened on the top of the power generation box (9). When the third motor (41) is started, it can drive the roller blind (11) to rotate onto the roller shaft (42) and expose the solar panel (10) at the bottom, wherein the electric water pump (39), the third motor (41) and the fourth motor (46) are all connected to the vehicle power supply (44) through the transmission line.

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