A solar panel installation device and use method

Abstract

A solar panel installation device and use method, relating to the technical field of solar panel, the adopted technical solution includes a lifting unit, a pulling unit, a lifting unit for pushing the lifting unit up and down, and a moving unit, the lifting unit includes at least two telescopic pallets arranged in parallel on a horizontal plane, the end of the telescopic pallet is provided with an inclined surface, the inclined surface facing one end of the telescopic pallet is higher than the other end, and the inclined surface facing one end of the telescopic pallet is higher than the upper surface of the telescopic pallet to form a limit block; the pulling unit includes a pulling bracket arranged above the lifting unit and a pulling rope arranged on the pulling bracket. The present invention realizes the transportation and installation of large-size solar panels, can replace a large amount of manual labor, and improves the installation efficiency of solar panels; the lifting unit and the pulling unit have simple structures and are easy to process, and can be modified on the basis of existing forklifts, with low investment costs.

Description

Technical Field

[0001] The present invention relates to the technical field of solar panels, and in particular to a solar panel installation device and a use method. Background Art

[0002] Under the general trend of green and low-carbon transformation of global energy, the photovoltaic industry has developed rapidly, and the installed capacity of solar panels has increased year by year. At present, the installation of solar panels is usually completed manually. They are manually carried to the photovoltaic bracket and fixed with a pressing block, and installed at a certain angle. However, high-power solar panels are large in size and heavy in weight. For example, the size of solar panels with a power of 250~350W is generally 1650*990*35 mm or 1960*990*35 mm, and the weight can reach up to 36Kg. In projects with a large number of installations, manual installation requires high labor intensity, high cost, and long cycle; if a crane is used, the construction steps are more complicated and the cost is higher. Therefore, it is necessary to design a special equipment to solve the above problems. Summary of the invention

[0003] In view of the problem that the manual installation of high-power solar panels in the prior art is labor-intensive, the present invention provides a solar panel installation device and a method for using the same.

[0004] The present invention provides the following technical solution: a solar panel installation device, comprising: A lifting unit, the lifting unit comprising at least two telescopic support plates arranged in parallel on a horizontal plane, an inclined surface being arranged at the end of the telescopic support plate, the inclined surface facing one end of the telescopic support plate being higher than the other end, and the inclined surface facing one end of the telescopic support plate being higher than the upper surface of the telescopic support plate to form a limit stopper; A pulling unit, the pulling unit comprising a pulling bracket arranged above the lifting unit and a pulling rope arranged on the pulling bracket; A lifting unit, used to push the lifting unit up and down; Mobile unit.

[0005] Preferably, the telescopic support plate comprises a multi-stage telescopic arm and an electric push rod parallel to the telescopic direction of the multi-stage telescopic arm. The end of the multi-stage telescopic arm is detachably connected to a wedge-shaped shovel plate, and the upper surface of the wedge-shaped shovel plate is the inclined surface.

[0006] Preferably, one end of the wedge-shaped shovel plate facing the multi-stage telescopic arm is also rotatably connected to a limiting roller.

[0007] Preferably, the multi-stage telescopic arm is also provided with a motor, and the output shaft of the motor is transmission-connected to the limiting roller.

[0008] Preferably, a plurality of supporting rollers are sequentially arranged at the top of the multi-stage telescopic arm along the length direction, and the heights of the plurality of supporting rollers are sequentially reduced, and the supporting roller closest to the wedge-shaped shovel plate has the lowest height.

[0009] Preferably, the multi-stage telescopic arm is rotatably connected to one end of the wedge-shaped shovel plate with the supporting roller, and a buffer pad is provided between the supporting roller and the wedge-shaped shovel plate.

[0010] Preferably, the pulling bracket is provided with a connecting hook, and the pulling rope is movably connected to the connecting hook; the pulling rope is an elastic rope, and hooks are provided at both ends of the pulling rope.

[0011] Preferably, the pulling bracket is provided with a rope winding machine, and the pulling rope is wound on the rope winding machine.

[0012] Preferably, the pulling bracket is provided with a slide rail on the side facing the lifting unit, the slide rail is slidably connected with a buffer slider, the buffer slider is provided with a connecting hook, and the pulling rope is movably connected to the connecting hook.

[0013] A method for using a solar panel installation device comprises the following steps: Connect the traction rope to the top of the solar panel; the lifting unit lowers the lifting unit to the bottom, and the installation device inserts the inclined surface at the end of the telescopic support plate into the bottom of the solar panel until the solar panel passes the limit stopper and falls into the telescopic support plate; The installation device moves to an open area, the telescopic support plate gradually extends, and at the same time the lifting unit moves the lifting unit upward until the solar panel is laid flat; The mobile unit moves the installation device to the vicinity of the photovoltaic bracket and unties the traction rope; adjusts the solar panel to the installation height, transfers the solar panel to the photovoltaic bracket and completes the initial fixation; then the lifting unit lifts the solar panel from the bottom and gradually moves downward and retracts until the solar panel is completely transferred to the photovoltaic bracket to complete the installation.

[0014] The beneficial effects of the present invention are: the installation device is used to realize the transportation and installation of large-size solar panels, which can replace a large amount of manual labor and improve the installation efficiency of the solar panels; the lifting unit and the pulling unit have simple structures and are easy to process, and can be modified on the basis of existing forklifts with low investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A packaging method for solar panels.

[0016] Figure 2 A three-dimensional schematic diagram of an embodiment of a mounting device.

[0017] Figure 3A side view of one embodiment of a mounting device.

[0018] Figure 4 A schematic diagram of the working of an embodiment of the installation device Figure Ⅰ .

[0019] Figure 5 A schematic diagram of the working of an embodiment of the installation device Figure II .

[0020] Figure 6 A schematic diagram of the working of an embodiment of the installation device Figure III .

[0021] Figure numerals: 10, lifting unit; 11, inclined plane; 12, multi-stage telescopic arm; 13, electric push rod; 14, wedge-shaped shovel plate; 15, limiting roller; 16, supporting roller; 17, buffer pad; 20, pulling unit; 21, pulling bracket; 22, pulling rope; 23, connecting hook; 30, lifting unit; 31, vertical bracket; 32, top beam; 33, bottom beam; 34, chain; 35, mounting plate; 36, connecting arm; 37, roller; 38, driving motor; 39, reducer; 40, moving unit; 41, moving driving device; 42, moving wheel; 43, balancing leg; 50, solar panel; 60, rack-type limiting strip. DETAILED DESCRIPTION

[0022] The following is a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and the accompanying drawings so that a person skilled in the art can implement the embodiments after reading the description. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] In order to prevent solar panels from being damaged when they arrive at the customer end from the transportation and circulation environment, manufacturers currently usually use a method of placing multiple solar panels 50 vertically and stacking them in sequence in the horizontal direction when packaging, and use a buffer device to ensure zero friction between two adjacent solar panels 50 and between the solar panels 50 and the packaging box. The buffer device can be a paper corner protector or a rack-type limit strip 60; the paper corner protector is set at the four corners of the solar panel; the rack-type limit strip 60 is set at the four sides of the package, and the solar panel 50 is inserted into the tooth groove. Please refer to Figure 1 . After the buffer device is used, the solar panels in the packaging box are restrained, there is a distance between adjacent solar panels, and there is a distance between the solar panels and the packaging box, which avoids friction and collision, greatly reducing the risk of damage. The solar panel is generally designed with a frame around it, and a plurality of reinforcing ribs are connected on the back of the solar panel and between the two long side frames. The present invention makes an adaptive design for the above packaging method. Example

[0024] The present invention provides Figure 2-4 A solar panel installation device shown includes a lifting unit 10, a pulling unit 20, a lifting unit 30 for pushing the lifting unit 10 up and down, and a moving unit 40 for facilitating the movement of the installation device.

[0025] The lifting unit 10 includes at least two telescopic pallets arranged in parallel on a horizontal plane, and a certain distance is set between two adjacent telescopic pallets to stably carry the solar panel. An inclined surface 11 is set at the end of the telescopic pallet, and the inclined surface 11 is higher than the other end toward one end of the telescopic pallet, and the inclined surface 11 is higher than the upper surface of the telescopic pallet toward one end of the telescopic pallet to form a limit stopper. When taking out a solar panel from a packaging box, the telescopic pallet is inserted into the gap between the bottom of the solar panel and the packaging box. The inclined surface 11 can lift the solar panel upward to disengage from the rack-type limit bar. As the telescopic pallet continues to be inserted, the solar panel passes over the limit stopper and falls into the telescopic pallet. When the telescopic pallet exits the packaging box, the limit stopper clamps the solar panel and takes it out. The telescopic pallet can be further extended to a maximum length of 2~2.2 m, which can fully support the solar panel in a flat state.

[0026] In this embodiment, please refer to Figure 2 The lifting unit 10 includes two telescopic support plates, and the telescopic support plates include a multi-stage telescopic arm 12 and an electric push rod 13 parallel to the telescopic direction of the multi-stage telescopic arm 12. The spacing between the two multi-stage telescopic arms 12 can be 0.6~1.2 m, and the spacing is the vertical distance between the central axes of the two multi-stage telescopic arms 12 extending along the length direction; a preferred numerical range is 0.9~1.0 m to adapt to the width of the solar cell panel. When the long side of the solar cell panel is parallel to the length direction of the multi-stage telescopic arm 12, the frame on both sides of the solar cell panel is just placed on the two multi-stage telescopic arms 12 respectively.

[0027] The multi-stage telescopic arm 12 can refer to the relevant technology, and its cross section is an inverted U-shape, and its bottom has a receiving groove corresponding to the balance leg 43 of the mobile unit 40. When the lifting unit 30 lowers the lifting unit 10 to the lower limit, the multi-stage telescopic arm 12 can cover the balance leg 43 to reduce the height of the multi-stage telescopic arm 12 from the ground, so as to facilitate insertion into the bottom of the solar panel, such as Figure 4 The electric push rod 13 is arranged between the two multi-stage telescopic arms 12 and connected to the multi-stage telescopic arms 12 through a connecting rod, so as to avoid occupying the space of the multi-stage telescopic arms 12 and increase the height thereof.

[0028] The end of the multi-stage telescopic arm 12 is detachably connected with a wedge-shaped shovel plate 14, and the upper surface of the wedge-shaped shovel plate 14 is the inclined surface 11. The wedge-shaped shovel plate 14 forms a step-shaped limit stopper toward one end of the multi-stage telescopic arm 12, and the limit stopper is also rotatably connected to a limit roller 15 to reduce friction when the solar panel moves relative to the multi-stage telescopic arm 12; the multi-stage telescopic arm 12 is also provided with a buffer pad 17 at one end of the multi-stage telescopic arm 12 toward the limit roller 15, which plays a buffering role when the solar panel passes over the limit roller 15 and falls onto the multi-stage telescopic arm 12. The limit roller 15 and the buffer pad 17 can be made of rubber material with good elasticity.

[0029] In other embodiments, the limiting roller 15 is also connected to a motor, and the motor is connected to the multi-stage telescopic arm 12 through a sheet metal part. When the solar panel moves relative to the multi-stage telescopic arm 12, the limiting roller 15 actively rotates to assist the movement of the solar panel, which is more labor-saving to use; specifically, when taking a solar panel out of the packaging box, the limiting roller 15 rotates counterclockwise; when transferring the solar panel to the photovoltaic bracket, the limiting roller 15 rotates clockwise.

[0030] The top of the multi-stage telescopic arm 12 is provided with a plurality of supporting rollers 16 in sequence along the length direction. The supporting rollers 16 can also be made of rubber material with good elasticity, which not only supports and cushions the solar panel, but also reduces friction when the solar panel moves relative to the multi-stage telescopic arm 12, protecting it from damage. Figure 6 When the solar panel is transferred from the mounting device to the photovoltaic support, the supporting roller 16 and the limiting roller 15 help the solar panel to move to the right. The distance between the two multi-stage telescopic arms 12 is 0.9~1.0 m. When the long side of the solar panel is parallel to the length direction of the multi-stage telescopic arm 12, the frames on both sides of the solar panel are just placed on the two multi-stage telescopic arms 12 respectively, so as to prevent the reinforcing ribs on the back of the solar panel from blocking the rolling of the supporting roller 16. When the short side of the solar panel is parallel to the length direction of the multi-stage telescopic arm 12, the reinforcing ribs will not affect the rolling of the supporting roller 16.

[0031] Preferably, the heights of the multiple supporting rollers 16 are successively reduced, and the supporting roller 16 closest to the wedge-shaped shovel plate 14 is the lowest. When the solar panel is placed flat on the multi-stage telescopic arm 12, the height of the end facing the limiting roller 15 is relatively low, so as to avoid the failure of the limiting function of the limiting block and the limiting roller, and the end of the solar panel facing the limiting roller 15 is stuck by the limiting roller 15. When the installation device moves, the center of gravity is more stable, and the vibration generated during the movement is unlikely to cause the solar panel to slide. Please refer to Figure 2 , 3The first telescopic arm of the multi-stage telescopic arm 12 is connected to the mounting plate 35 of the lifting unit 30, and a supporting roller 16 is provided at the top of both ends thereof, which does not affect the telescopic movement of the multi-stage telescopic arm 12; the second telescopic arm is not provided with a supporting roller; the third telescopic arm is provided with a supporting roller 16 at one end facing the limiting roller 15, and its height is the lowest. If interference occurs, the third telescopic arm is provided with an avoidance groove corresponding to the supporting roller 16, and a spacing is provided between the supporting roller 16 and the limiting roller 15 to place a buffer pad 17. The specific height of the multiple supporting rollers 16 can be selected according to the actual situation to select rollers with appropriate heights for installation, and the present invention does not limit this.

[0032] In other embodiments, the lifting unit may use a larger number of telescopic supporting plates, and the end of the multi-stage telescopic arm 12 may also be directly processed to form the inclined surface 11 .

[0033] The pulling unit 20 includes a pulling bracket 21 disposed above the lifting unit 10 and a pulling rope 22 disposed on the pulling bracket 21. When the installation device takes out a solar panel from the packaging box, the pulling rope 22 can be first fixed to the top of the solar panel, and then the multi-stage telescopic arm 12 can be inserted into the bottom of the solar panel to prevent the solar panel from falling due to vibration; as the multi-stage telescopic arm 12 is extended and its height is raised by the lifting unit, the distance between the multi-stage telescopic arm 12 and the pulling bracket 21 is shortened, and the solar panel is gradually laid down, changing from a vertical placement state to a horizontal placement state. In this process, the pulling unit 20 always plays a buffering role to prevent the solar panel from falling unprotected and colliding with the lifting unit and being damaged.

[0034] In this embodiment, please refer to Figure 2 , 3 The pulling bracket 21 is welded to the top of the vertical bracket 31 of the lifting unit 30, and is above the lifting unit. Its height from the ground is 2~3.0 m. Its installation height can be determined according to the height of the photovoltaic bracket. In this embodiment, it is 2.1 m. The pulling bracket 21 is provided with a connecting hook 23; the pulling rope 22 can be an elastic rope, and hooks are provided at both ends of the pulling rope 22. The pulling rope 22 is movably connected to the connecting hook 23 and the opening of the top frame of the solar panel through the hook; in other embodiments, the pulling rope 22 can also be connected to the solar panel frame through a clamp. Pull ropes of different lengths can be replaced according to the actual size of the solar panel. Please refer to Figure 5 When the solar panel is in a flat state, the pulling rope 22 is stretched, and the horizontal component of its oblique pulling force pulls the solar panel to the right, so that it is clamped with the limiting roller, thereby enhancing the stability of the solar panel when the installation device moves.

[0035] In another embodiment, the pulling bracket 21 is provided with a rope reel, and the pulling rope 22 is wound on the rope reel, and the pulling rope 22 is a non-elastic rope. The rope reel can be a small electric rope reel, and its control device can be set at the driving position of the mobile unit 30, and the pulling rope 22 is pulled out to a suitable length according to actual needs, and the length of the pulling rope 22 is actively controlled when the solar panel changes from a vertical state to a horizontal state, so as to prevent the solar panel from tipping over without protection.

[0036] In other embodiments, the pulling bracket 21 is provided with a slide rail on the side facing the lifting unit 10, the slide rail is slidably connected with a buffer slider, the buffer slider is provided with a connecting hook 23, and the pulling rope 22 is a non-elastic rope, which is movably connected to the connecting hook. The pulling bracket 21 can use C-shaped steel as the slide rail, and the buffer slider is made of a material with large friction and has a damping effect. Please refer to Figure 3 , take out a solar panel from the packaging box, when the solar panel changes from a vertical state to a horizontal state, as the lifting unit rises and the distance between the pulling unit is shortened, the buffer slider moves from Figure 3 The right end of the middle pulling bracket gradually slides to the left end, and due to the effect of friction, the sliding speed is relatively slow, which prevents the solar panel from being damaged by vibration caused by tipping over too quickly.

[0037] The lifting unit 30 and the moving unit 40 can refer to related technologies, such as a forklift driven by a motor or an internal combustion engine, and the present invention does not limit its specific structure. The present invention can be modified based on an existing forklift, by removing the existing forklift forks, installing the lifting unit and the pulling unit on the forklift, and realizing the lifting and lowering of the lifting unit and the movement of the installation device. In this embodiment, an electric forklift is used for modification.

[0038] Please refer to Figure 1 The lifting unit 30 includes two vertical brackets 31 and a top beam 32 and a bottom beam 33 disposed between the two vertical brackets 31. The top beam 32 and the bottom beam 33 are both rotatably connected to a first sprocket. The two first sprockets are transmission-connected to a chain 34. The chain 34 is detachably connected to a mounting plate 35. The lifting unit 10 is connected to the mounting plate 35, and the pulling bracket 21 is connected to the vertical bracket 31. The lifting unit 30 also includes a driving motor, which is transmission-connected to a reducer. The reducer is transmission-connected to a second sprocket rotatably connected to the bottom beam 33. The second sprocket is coaxial and connected to the first sprocket. The driving motor drives the chain to move up and down, thereby driving the lifting unit 10 on the mounting plate 35 to rise and fall.

[0039] The vertical bracket 31 is also provided with a guide groove, and the mounting plate 35 is provided with a connecting arm 36 extending to the guide groove. The connecting arm 36 is rotatably connected to a roller 37, and the roller 37 is located in the guide groove to enhance stability during lifting.

[0040] The mobile unit 40 includes a support frame and a mobile drive device 41 arranged on the support frame. The support frame is connected to the bottom beam 33 and the vertical bracket 31, and the reducer is detachably connected to the support frame. The mobile drive device 41 can refer to the relevant technology and is arranged on the side of the vertical bracket 31 away from the lifting unit to stabilize the center of gravity. It is provided with a shell, and the reducer and drive motor of the lifting unit are protected in the shell. The mobile unit 40 is also provided with a plurality of moving wheels 42, including a universal wheel that is transmission-connected to the mobile drive device 41. The support frame is also provided with two balancing legs 43 corresponding to the positions of the two telescopic support plates, and the balancing legs are also provided with moving wheels 42. Example

[0041] The present invention provides a method for using a solar panel installation device as described in Example 1, comprising the following steps: First, adjust the posture of the solar panel packaging box according to the actual installation needs, put the long side or short side of the solar panel close to the ground, and then remove the side and top of the packaging box. If the stability is not good after removal, it is necessary to provide a support object to lean against the solar panel.

[0042] Please refer to Figure 4 , align the installation device with the solar panel, and connect the traction rope to the top of the solar panel after getting close; the lifting unit lowers the lifting unit to the bottom, and the multi-stage telescopic arm can be retracted to the shortest state. Use the moving unit or the electric push rod to insert the inclined surface of the wedge-shaped shovel at the end of the multi-stage telescopic arm into the bottom of the solar panel, until a solar panel passes the limit block and the limit roller and falls onto the buffer pad of the multi-stage telescopic arm, and the installation device drives the solar panel away from the packaging box.

[0043] Please refer to Figure 5 The installation device is moved to an open area, the electric push rod 13 drives the multi-stage telescopic arm 12 to gradually extend, and at the same time the lifting unit 30 raises the height of the multi-stage telescopic arm 12, and the solar panel gradually changes from a vertical state to a flat state with a small inclination angle.

[0044] Please refer to Figure 6, and then remove the pulling rope after the installation device moves to the vicinity of the photovoltaic bracket. The photovoltaic bracket is generally a grid-shaped bracket composed of multiple horizontal beams and inclined beams. The lifting unit can be inserted into its grid, which has sufficient space for movement. The lifting unit adjusts the solar panel to the installation height, and the operator uses auxiliary tools such as ropes to pull the solar panel to the right, transfer it to the horizontal beam of the photovoltaic bracket and complete the initial fixation; the lifting unit lifts the solar panel from the bottom and gradually moves down and retracts until the solar panel is completely transferred to the photovoltaic bracket, and then uses the pressing block to completely fix the solar panel to complete the installation.

[0045] The above are one or more embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A solar panel installation device, characterized in that: include: A lifting unit (10), the lifting unit (10) comprising at least two telescopic support plates arranged in parallel on a horizontal plane, an inclined surface (11) being arranged at the end of the telescopic support plate, the inclined surface (11) being higher towards one end of the telescopic support plate than the other end, and the inclined surface (11) being higher towards one end of the telescopic support plate than the upper surface of the telescopic support plate to form a limit stop; A pulling unit (20), the pulling unit (20) comprising a pulling bracket (21) arranged above the lifting unit (10), and a pulling rope (22) arranged on the pulling bracket (21); A lifting unit (30), used for pushing the lifting unit (10) to move up and down; A mobile unit (40).

2. A solar panel installation device according to claim 1, characterized in that: The telescopic support plate comprises a multi-stage telescopic arm (12) and an electric push rod (13) parallel to the telescopic direction of the multi-stage telescopic arm (12); a wedge-shaped shovel plate (14) is detachably connected to the end of the multi-stage telescopic arm (12); and the upper surface of the wedge-shaped shovel plate (14) is the inclined surface (11).

3. A solar panel installation device according to claim 2, characterized in that: The wedge-shaped shovel plate (14) is also rotatably connected to a limiting roller (15) at one end facing the multi-stage telescopic arm (12).

4. A solar panel installation device according to claim 3, characterized in that: The multi-stage telescopic arm (12) is also provided with a motor, and the output shaft of the motor is transmission-connected to the limiting roller (15).

5. A solar panel installation device according to claim 2, characterized in that: A plurality of supporting rollers (16) are sequentially arranged at the top of the multi-stage telescopic arm (12) along the length direction, and the heights of the plurality of supporting rollers (16) are successively reduced, with the supporting roller (16) closest to the wedge-shaped shovel plate (14) having the lowest height.

6. A solar panel installation device according to claim 5, characterized in that: One end of the multi-stage telescopic arm (12) is rotatably connected to the supporting roller (16) toward the wedge-shaped shovel plate (14), and a buffer pad (17) is provided between the supporting roller (16) and the wedge-shaped shovel plate (14).

7. A solar panel installation device according to claim 1, characterized in that: The pulling bracket (21) is provided with a connecting hook (23), and the pulling rope (22) is movably connected to the connecting hook (23); the pulling rope (22) is an elastic rope, and hooks are provided at both ends of the pulling rope (22).

8. A solar panel installation device according to claim 1, characterized in that: The pulling bracket (21) is provided with a rope winding machine, and the pulling rope (22) is wound on the rope winding machine.

9. A solar panel installation device according to claim 1, characterized in that: The pulling bracket (21) is provided with a slide rail on the side facing the lifting unit (10), the slide rail is slidably connected to a buffer slider, the buffer slider is provided with a connecting hook (23), and the pulling rope (22) is movably connected to the connecting hook.

10. A method for using a solar panel installation device, characterized in that: The installation device is the installation device according to any one of claims 1 to 9, comprising the following steps: Connect the traction rope to the top of the solar panel; the lifting unit lowers the lifting unit to the bottom, and the installation device inserts the inclined surface at the end of the telescopic support plate into the bottom of the solar panel until the solar panel passes the limit stopper and falls into the telescopic support plate; The installation device moves to an open area, the telescopic support plate gradually extends, and at the same time the lifting unit moves the lifting unit upward until the solar panel is laid flat; The mobile unit moves the installation device to the vicinity of the photovoltaic bracket and unties the traction rope; adjusts the solar panel to the installation height, transfers the solar panel to the photovoltaic bracket and completes the initial fixation; then the lifting unit lifts the solar panel from the bottom and gradually moves downward and retracts until the solar panel is completely transferred to the photovoltaic bracket to complete the installation.

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