Aerial transport trolley on a photovoltaic panel

Abstract

The utility model provides a photovoltaic board house transportation tackle, relates to transportation tackle technical field, including the car board, the bottom of car board is provided with the gyro wheel and hydraulic cylinder and support plate, the top of car board is provided with the motor, the output of motor is provided with the rotary rod and spacing plate and fixed link, the inside of fixed link is provided with the threaded rod, the surface of fixed link is provided with gear A and gear B, has promoted the operation efficiency and security, the gyro wheel and hydraulic cylinder synergistic effect realizes the stable movement and height self -adaptation adjustment, cooperation support plate forms stable support base, the rotary rod of motor drive combines gear group transmission system can accurate control winding roll action, makes the wire harness and the hook synchronous tensioning, ensures photovoltaic board fixed reliable and stress uniform, the rotatable support structure of support rod and male rod constitution expands the operation range, the sliding fit of support plate and guide plate is convenient for quick positioning, and the hanging ring design further simplifies the hoisting process.

Description

Technical Field

[0001] This utility model relates to the field of transport trolley technology, and in particular to a transport trolley for photovoltaic panels on roofs. Background Technology

[0002] Solar energy is a clean energy source that aligns with the new concept of sustainable development. In recent years, the solar photovoltaic (PV) power generation industry has experienced rapid growth. Solar PV power generation technology converts solar energy into electrical energy using photovoltaic panels. These panels typically utilize the photovoltaic effect of semiconductor devices for photoelectric conversion. PV power generation systems are widely used, currently mainly including centralized large-scale grid-connected power generation systems and rooftop PV power generation systems. Currently, the installation of PV panels in the construction of solar power generation systems is mostly done manually. Due to the weight of the PV panels, two to three people are needed to install them, making this process time-consuming, inefficient, and costly in terms of labor.

[0003] In the prior art, such as the Chinese announcement number CN222714382U, a trolley for transporting photovoltaic panels to houses is disclosed, including a photovoltaic panel support frame; the photovoltaic panel support frame is slidably connected to an adjustment frame slide rail, and the photovoltaic panel support frame is also slidably connected to a main frame slide rail; the adjustment frame slide rail is welded to an adjustment frame, and the adjustment frame is slidably connected to an outer slide rail, which is welded to a support; a take-up wheel is connected to a bearing with a seat at the top of the support; in this utility model, the adjustment frame can slide on the support, thereby adjusting its length to transport photovoltaic panels to houses of different heights; the photovoltaic panel support frame can be slidably connected to the main frame slide rail and the adjustment frame slide rail simultaneously, or it can be slidably connected separately, thereby ensuring that the adjustment does not affect the sliding loading.

[0004] The above-mentioned technology has achieved the effect of allowing multiple people to use it simultaneously, but there are still some shortcomings, specifically:

[0005] Traditional methods of transporting photovoltaic panels typically rely on simple trolleys or temporary ramps. Manual pushing requires continuous force, resulting in low efficiency and high physical exertion over long distances. Photovoltaic panels are often secured with ropes or simple clamps, which are prone to loosening due to vibrations, posing a risk of falling. Utility Model Content

[0006] This utility model proposes a photovoltaic panel roof transport trolley, which improves work efficiency and safety. The rotating wheel and hydraulic cylinder work together to achieve smooth movement and adaptive height adjustment. Together with the support plate, they form a stable support base. The motor-driven rotating rod combined with the gear transmission system can precisely control the movement of the winding roller, so that the wire harness and hook are tensioned synchronously, ensuring that the photovoltaic panel is fixed reliably and the force is evenly distributed. The rotatable bracket structure composed of the support rod and the convex rod expands the working range. The sliding cooperation between the pallet and the guide plate facilitates quick positioning. The hanging ring design further simplifies the hoisting process, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic panel roof transport trolley, comprising a platform, a rotating wheel, a hydraulic cylinder, and a support plate at the bottom end of the platform, a motor at the top end of the platform, a rotating rod, a limiting plate, and a fixing rod at the output end of the motor, a threaded rod inside the fixing rod, and gears A and B on the surface of the fixing rod, a winding roller A and a winding roller B at the top end of the platform, a wire harness A and a hook A in the middle of the winding roller A, a rotating rod A and a gear C on the surface of the winding roller A, a wire harness B and a hook B in the middle of the winding roller B, a rotating rod B and a gear D on the surface of the winding roller B, a support rod fixedly installed at the top end of the platform, a protruding rod and a bracket in the middle of the support rod, a fixing plate and a protruding plate fixedly installed at the bottom end of the bracket, and a base plate and a support plate at the top end of the protruding plate.

[0008] Preferably, the rotating wheels are evenly distributed at the four corners of the bottom of the vehicle board, the hydraulic cylinders and support plates are symmetrically distributed at the left and right ends of the vehicle board, the motor is fixed to the top of the vehicle board by a mounting base, the limiting plate and the fixing rod are fixed to the surface of the rotating rod by a connecting plate, the threaded rod is rotatably connected to the fixing rod by a threaded groove, a baffle is fixedly installed on the surface of the threaded rod, a handle is fixedly installed on the surface of the baffle, and a tool groove is opened on the surface of the handle.

[0009] Preferably, gear A is slidably connected to the fixing rod via the mounting groove, and gear A is slidably connected to the limiting plate via the limiting groove B. A partition is provided on the surface of gear A, and the partition is slidably connected to the limiting plate via the limiting groove A. Gear B is slidably connected to the fixing rod via the mounting groove, and gear B is slidably connected to the limiting plate via the limiting groove B. Gear A drives gear C to rotate together via the toothed belt A, and gear C drives gear D to rotate together via the toothed belt B.

[0010] Preferably, the support rods are symmetrically distributed at the left and right ends of the vehicle plate, the protruding rods are rotatably connected to the support rods through the grooves, the protruding rods are symmetrically distributed at the left and right ends of the bracket, the surface of the bracket is provided with through grooves and pull grooves, and the top of the fixing plate is provided with a fixing groove.

[0011] Preferably, the base plate and the convex plate are slidably connected, the support plate and the bracket are slidably connected, a hanging ring is fixedly installed on the back of the support plate, the hanging rings are symmetrically distributed on the left and right ends of the back of the support plate, a guide plate is fixedly installed on the back of the support plate, and the guide plate is slidably connected to the bracket.

[0012] Preferably, a protective plate is fixedly installed on the top of the vehicle plate, the surface of the protective plate is provided with a rotating groove, the surface of the protective plate is provided with rotating groove A and rotating groove B, the top of the protective plate is provided with a slot, a slot plate is provided inside the slot, and a protective cover is fixedly installed on the surface of the slot plate.

[0013] Preferably, the slots are symmetrically distributed on the left and right ends of the surface of the protective plate, the plates are symmetrically distributed on the left and right ends of the protective cover, the plates are slidably connected to the protective plate through the slots, and the protective cover is slidably connected to the protective plate.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, the components include: a vehicle plate, a rotating wheel, a hydraulic cylinder, a support plate, a mounting base, a motor, a rotating rod, a connecting plate, a limiting plate, a fixing rod, a threaded groove, a threaded rod, a baffle, a throttle, a tool groove, a gear A, a partition, a limiting groove A, a gear B, a mounting groove, a limiting groove B, a take-up roller A, a wire harness A, a hook A, a rotating rod A, a gear C, a toothed belt A, a take-up roller B, a wire harness B, a hook B, a rotating rod B, a gear D, a toothed belt B, a support rod, a groove, a protruding rod, a bracket, a through groove, a pull groove, a fixing plate, a fixing groove, a protruding plate, and a bottom. The combination of plates, pallets, hanging rings, and guide plates enhances operational efficiency and safety. The rotating wheel and hydraulic cylinder work together to achieve smooth movement and adaptive height adjustment. Together with the support plate, they form a stable support base. The motor-driven rotating rod, combined with the gear transmission system, can precisely control the movement of the winding roller, ensuring that the wire harness and hook are tensioned synchronously, guaranteeing reliable fixing and uniform stress on the photovoltaic panel. The rotatable bracket structure composed of support rods and protruding rods expands the working range. The sliding cooperation between the pallet and guide plate facilitates quick positioning, and the hanging ring design further simplifies the hoisting process.

[0016] 2. In this utility model, the protective plate, rotating groove, rotating groove A, rotating groove B, card slot, card plate, and protective cover improve the safety and reliability of the transportation process. The rotating groove on the surface of the protective plate forms a multi-directional adjustable guide rail, which can be adapted to photovoltaic modules of different sizes and tilt angles, ensuring fit and uniform force. The sliding connection design of the card slot and card plate realizes the quick positioning and locking of the protective cover, effectively preventing the photovoltaic panels from shifting or slipping due to vibration during transportation. The double-layer protective structure of the protective cover and the protective plate further strengthens the protection of the edges of the photovoltaic panels and reduces the risk of bump damage. Attached Figure Description

[0017] Figure 1 A three-dimensional structural view of a photovoltaic panel roof transport trolley is provided for this utility model;

[0018] Figure 2 An exploded perspective view of the roof transport trolley for photovoltaic panels is provided for this utility model.

[0019] Figure 3 This utility model proposes a trolley for transporting photovoltaic panels to roofs. Figure 2 Enlarged 3D view of the structure at point A in the middle;

[0020] Figure 4 An exploded three-dimensional view of the support structure of a photovoltaic panel roof transport trolley is provided for this utility model;

[0021] Figure 5 An exploded perspective view of the pallet structure of a photovoltaic panel roof transport trolley is provided for this utility model.

[0022] Figure 6 An exploded perspective view of the protective cover of a photovoltaic panel roof transport trolley is provided for this utility model.

[0023] Legend: 1. Car body; 2. Rotary wheel; 3. Hydraulic cylinder; 4. Support plate; 5. Mounting base; 6. Motor; 7. Rotating rod; 8. Connecting plate; 9. Limiting plate; 10. Fixing rod; 11. Threaded groove; 12. Threaded rod; 13. Baffle; 14. Turning handle; 15. Tool slot; 16. Gear A; 17. Partition plate; 18. Limiting groove A; 19. Gear B; 20. Mounting slot; 21. Limiting groove B; 22. Take-up roller A; 23. Wire harness A; 24. Hook A; 25. Rotating rod A; 26. Gear C; 27. 28. Toothed belt A; 29. ​​Take-up roller B; 30. Wire harness B; 31. Hook B; 32. Rotating rod B; 33. Gear D; 34. Toothed belt B; 35. Support rod; 36. Groove; 37. Protruding rod; 38. Bracket; 39. Through groove; 40. Pull groove; 41. Fixing plate; 42. Fixing groove; 43. Protruding plate; 44. Base plate; 45. Support plate; 46. Hanging ring; 47. Guide plate; 48. Protective plate; 49. Rotating groove; 50. Rotating groove A; 51. Slot; 52. Slot plate; 53. Protective cover. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figures 1-5As shown, this utility model provides a technical solution: a photovoltaic panel roof transport trolley, including a platform 1. The bottom end of the platform 1 is provided with a rotating wheel 2, a hydraulic cylinder 3, and a support plate 4. The top end of the platform 1 is provided with a motor 6. The output end of the motor 6 is provided with a rotating rod 7, a limiting plate 9, and a fixing rod 10. A threaded rod 12 is provided inside the fixing rod 10, and gears A16 and B19 are provided on the surface of the fixing rod 10. A winding roller A22 and a winding roller B28 are provided at the top end of the platform 1. A wire harness A23 and a hook A24 are provided in the middle of the winding roller A22. A rotating rod A25 and a gear C26 are provided on the surface of the winding roller A22. A winding roller B28 is provided in the middle... The wire harness B29 and hook B30, the surface of the take-up roller B28 are provided with a rotating rod B31 and a gear D32, the top of the vehicle plate 1 is fixedly installed with a support rod 34, the middle of the support rod 34 is provided with a protruding rod 36 and a bracket 37, the bottom end of the bracket 37 is fixedly installed with a fixing plate 40 and a protruding plate 42, the top of the protruding plate 42 is provided with a bottom plate 43 and a support plate 44, the rotating wheels 2 are evenly distributed at the four corners of the bottom end of the vehicle plate 1, the hydraulic cylinder 3 and the support plate 4 are symmetrically distributed at the left and right ends of the vehicle plate 1, the motor 6 is fixed to the top of the vehicle plate 1 through the mounting base 5, the limiting plate 9 and the fixing rod 10 are fixed to the surface of the rotating rod 7 through the connecting plate 8, and the threaded rod 12 rotates between the threaded groove 11 and the fixing rod 10. The threaded rod 12 is connected to a fixed rod 10 via a sliding connection. A baffle 13 is fixedly mounted on the surface of the baffle 13, and a throttle 14 is fixedly mounted on the surface of the baffle 13. A tool groove 15 is provided on the surface of the throttle 14. Gear A16 is slidably connected to the fixed rod 10 via a mounting groove 20 and to a limiting plate 9 via a limiting groove B21. A partition 17 is provided on the surface of gear A16, and the partition 17 is slidably connected to the limiting plate 9 via a limiting groove A18. Gear B19 is slidably connected to the fixed rod 10 via a mounting groove 20 and to the limiting plate 9 via a limiting groove B21. Gear A16 drives gear C26 to rotate via a toothed belt A27. 26 drives gear D32 to rotate together via toothed belt B33. Support rods 34 are symmetrically distributed on the left and right ends of the vehicle plate 1. Protruding rods 36 are rotatably connected to support rods 34 via grooves 35. Protruding rods 36 are symmetrically distributed on the left and right ends of bracket 37. Through grooves 38 and pull grooves 39 are provided on the surface of bracket 37. Fixed groove 41 is provided at the top of fixed plate 40. Bottom plate 43 and protruding plate 42 are slidably connected. Support plate 44 and bracket 37 are slidably connected. Hanging rings 45 are fixedly installed on the back of support plate 44. Hanging rings 45 are symmetrically distributed on the left and right ends of the back of support plate 44. Guide plate 46 is fixedly installed on the back of support plate 44. Guide plate 46 is slidably connected to bracket 37.

[0027] In this embodiment, the efficiency and safety of transporting photovoltaic panels on the roof are improved. A motor 6 drives a rotating rod 7 in conjunction with gear sets A16, B19, C26, and D32 to achieve synchronous loading and unloading of wire harnesses A23 and B29. Combined with hooks A24 and B30 for precise positioning, this solves the problem of easy deviation during photovoltaic panel hoisting. A stable chassis composed of a hydraulic cylinder 3 and four corner wheels 2, along with an adjustable support rod 34 and a sliding pallet 44, can adapt to roof slopes of varying gradients and maintain stable transport. The modularly designed limit plate 9, threaded rod 12, and baffle 13 components allow for rapid adjustment of the vehicle height and clamping distance, accommodating various photovoltaic panel specifications. A sliding guide rail system formed by a protruding rod 36 and a bracket 37, along with a guide plate 46 and hanging ring 45, ensures that the photovoltaic panels remain under control during transport, improving transport accuracy and operational safety. It also boasts significant advantages such as compact structure, convenient operation, and strong adaptability.

[0028] Example 2: As Figure 1 , Figure 6 As shown, a protective plate 47 is fixedly installed on the top of the vehicle plate 1. A rotating groove 48 is opened on the surface of the protective plate 47. A rotating groove A49 and a rotating groove B50 are opened on the surface of the protective plate 47. A slot 51 is opened on the top of the protective plate 47. A retaining plate 52 is arranged inside the slot 51. A protective cover 53 is fixedly installed on the surface of the retaining plate 52. The slots 51 are symmetrically distributed on the left and right ends of the surface of the protective plate 47. The retaining plates 52 are symmetrically distributed on the left and right ends of the protective cover 53. The retaining plates 52 are slidably connected to the protective plate 47 through the slots 51. The protective cover 53 is slidably connected to the protective plate 47.

[0029] In this embodiment, the protective performance of the photovoltaic panel during transportation is optimized. The protective plate 47 integrates a rotating groove 48, a rotating groove A49, a rotating groove B50, and a slot 51 structure. Together with the sliding slot 52 and the protective cover 53, a multi-level protection system is formed. The slot 52 achieves precise positioning through the slot 51 and can slide and adjust along the protective plate 47 to adapt to the edge protection requirements of photovoltaic panels of different sizes. The sliding connection design between the protective cover 53 and the protective plate 47 can completely cover the surface of the photovoltaic panel during transportation, effectively blocking external impacts and foreign object intrusion. The rotating groove 48, rotating groove A49, and rotating groove B50 provide guiding space for the dynamic adjustment of the protective structure, enabling the protective device to automatically adapt to changes in roof slope, improving the physical protection level of the photovoltaic panel during transportation, reducing the risk of hidden cracks caused by bumps or collisions, and taking into account both lightweight structure and ease of operation, reflecting a balance between safety performance and practical function.

[0030] The working principle of this embodiment is as follows: In use, the wheel 2 is used to push the vehicle platform 1 to the desired position. Then, the hydraulic cylinder 3 is activated, causing the support plate 4 to slide downwards at the bottom of the vehicle platform 1. Once it is in contact with the ground and lifts the vehicle platform 1, the bracket 37 is installed on the top of the support rod 34 via the protrusion 36 and groove 35. When the fixing plate 40 is in contact with the ground, it is securely fixed via the fixing groove 41. Then, the base plate 43 is placed on top of the protrusion 42, and the support plate 44 is attached to the right side of the bracket 37. Hooks A24 and B30 are then pulled to fix the wiring harness A23 and B29 to the hanging ring 45 via the pull groove 39 and through groove 38. In use, the photovoltaic panel is placed on the support plate 44, and then the system is activated. The motor 6 at the top of the mounting base 5 drives the rotating rod 7 to rotate on the surface of the protective plate 47 via the rotating groove 48. At this time, the rotating rod 7, through the connecting plate 8, drives the limiting plate 9 and the fixing rod 10 to rotate together, and drives gears A16 and B19 to rotate together. Gear A16, through the toothed belt A27, drives gear C26 to rotate together, causing gear C26 to rotate together with the rotating rod A25 and the rotating groove A49, thus driving the take-up roller A22 to rotate together. Meanwhile, gear B19, through the toothed belt B33, drives gear D32 to rotate together, causing gear D32 to rotate together with the rotating rod B31 and the rotating groove B50, thus driving the take-up roller B28 to rotate together. At this time, the take-up rollers A22 and B28 drive the wire harness A23 and the hook A2... 4. The wiring harness B29 and hook B30 move together. At this time, the tray 44 slides on the right side of the bracket 37, and the guide plate 46 slides on the surface of the bracket 37, so as to complete the effect of transporting the photovoltaic panel to the roof. After long-term use, when it is necessary to replace the toothed belts A27 and B33, first pinch the protective cover 53 and pull it upward, so that the clamping plate 52 slides upward through the groove 51 inside the protective plate 47. When the clamping plate 52 slides completely out of the protective plate 47 through the groove 51, it is ready for the staff to replace the toothed belts A27 and B33. Finally, when it is necessary to replace the gears A16 and B19, first use the tool slot 15 to turn the handle 14, so that the threaded rod 12 passes through the threaded groove 11 and is fixed on the rod. Rotate the fixed rod 10 from the inside out until the threaded rod 12 is completely rotated out of the interior of the fixed rod 10 through the threaded groove 11. At this time, the threaded rod 12 and the baffle 13 are completely separated from the surface of the fixed rod 10. Then, pinch the gear B19 and pull it backward, so that the gear B19 slides backward on the surface of the limiting plate 9 through the limiting groove B21 and slides backward on the surface of the fixed rod 10 through the mounting groove 20. Then pinch the partition 17 and pull it backward, so that it slides out of the surface of the limiting plate 9 through the limiting groove A18. Finally, pinch the gear A16 and pull it backward, so that the gear A16 slides backward on the surface of the limiting plate 9 through the limiting groove A18 and slides backward on the surface of the fixed rod 10 through the mounting groove 20.Once gear A16 and gear B19 are completely disengaged from the fixing rod 10, the process is complete.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A photovoltaic panel roof transport trolley, comprising a platform (1), characterized in that: The bottom end of the vehicle plate (1) is provided with a rotating wheel (2), a hydraulic cylinder (3), and a support plate (4). The top end of the vehicle plate (1) is provided with a motor (6). The output end of the motor (6) is provided with a rotating rod (7), a limiting plate (9), and a fixing rod (10). The inside of the fixing rod (10) is provided with a threaded rod (12). The surface of the fixing rod (10) is provided with gear A (16) and gear B (19). The top end of the vehicle plate (1) is provided with a take-up roller A (22) and a take-up roller B (28). The middle of the take-up roller A (22) is provided with a wire harness A (23) and a hook A (24). The surface of the take-up roller A (22) is provided with a rotating rod A (25) and a gear C (26). The middle of the take-up roller B (28) is provided with a wire harness B (29) and a hook B (30). The surface of the take-up roller B (28) is provided with a rotating rod B (31) and a gear D (32). The top of the car plate (1) is fixedly installed with a support rod (34). The middle of the support rod (34) is provided with a protruding rod (36) and a bracket (37). The bottom end of the bracket (37) is fixedly installed with a fixing plate (40) and a protruding plate (42). The top of the protruding plate (42) is provided with a bottom plate (43) and a support plate (44).

2. The photovoltaic panel roof transport trolley according to claim 1, characterized in that: The rotating wheels (2) are evenly distributed at the four corners of the bottom of the vehicle plate (1). The hydraulic cylinder (3) and the support plate (4) are symmetrically distributed at the left and right ends of the vehicle plate (1). The motor (6) is fixed to the top of the vehicle plate (1) through the mounting base (5). The limiting plate (9) and the fixing rod (10) are fixed to the surface of the rotating rod (7) through the connecting plate (8). The threaded rod (12) is rotatably connected to the fixing rod (10) through the threaded groove (11). A baffle (13) is fixedly installed on the surface of the threaded rod (12). A throttle (14) is fixedly installed on the surface of the baffle (13). A tool groove (15) is opened on the surface of the throttle (14).

3. The photovoltaic panel roof transport trolley according to claim 1, characterized in that: The gear A (16) is slidably connected to the fixed rod (10) through the mounting groove (20). The gear A (16) is slidably connected to the limiting plate (9) through the limiting groove B (21). A partition plate (17) is provided on the surface of the gear A (16). The partition plate (17) is slidably connected to the limiting plate (9) through the limiting groove A (18). The gear B (19) is slidably connected to the fixed rod (10) through the mounting groove (20). The gear B (19) is slidably connected to the limiting plate (9) through the limiting groove B (21). The gear A (16) drives the gear C (26) to rotate together through the toothed belt A (27). The gear C (26) drives the gear D (32) to rotate together through the toothed belt B (33).

4. The photovoltaic panel roof transport trolley according to claim 1, characterized in that: The support rods (34) are symmetrically distributed on the left and right ends of the vehicle plate (1). The protruding rods (36) are rotatably connected to the support rods (34) through the grooves (35). The protruding rods (36) are symmetrically distributed on the left and right ends of the bracket (37). The surface of the bracket (37) is provided with through grooves (38) and pull grooves (39). The top of the fixing plate (40) is provided with fixing grooves (41).

5. The photovoltaic panel roof transport trolley according to claim 1, characterized in that: The base plate (43) is slidably connected to the convex plate (42), the support plate (44) is slidably connected to the bracket (37), a hanging ring (45) is fixedly installed on the back of the support plate (44), the hanging ring (45) is symmetrically distributed on the left and right ends of the back of the support plate (44), a guide plate (46) is fixedly installed on the back of the support plate (44), and the guide plate (46) is slidably connected to the bracket (37).

6. The photovoltaic panel roof transport trolley according to claim 1, characterized in that: A protective plate (47) is fixedly installed on the top of the vehicle plate (1). A rotating groove (48) is opened on the surface of the protective plate (47). A rotating groove A (49) and a rotating groove B (50) are opened on the surface of the protective plate (47). A slot (51) is opened on the top of the protective plate (47). A card plate (52) is provided inside the slot (51). A protective cover (53) is fixedly installed on the surface of the card plate (52).

7. The photovoltaic panel roof transport trolley according to claim 6, characterized in that: The slots (51) are symmetrically distributed on the left and right ends of the surface of the protective plate (47), and the plates (52) are symmetrically distributed on the left and right ends of the protective cover (53). The plates (52) are slidably connected to the protective plate (47) through the slots (51), and the protective cover (53) is slidably connected to the protective plate (47).

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