A ship-to-shore cargo transport system and method

Abstract

The application provides a ship shore cargo transportation system and a transportation method, the cargo transportation system comprises a vertical cargo elevator transportation platform and an air transmission platform which are communicated with each other, and realizes the operation of the cargo between a ground warehouse and a shed warehouse. The air support structure is divided into a left segment and a right segment, the left segment and the right segment are connected through a through structure, the soft connection between the two segments is realized, and the docking stress problem caused by the fluctuation of the ship is solved. The implementation of the application means a new mode of transporting the cargo from the ground to the high altitude of the deck of the ship in the field of the ship, not only improves the operation speed of the cargo and guarantees the production rhythm, but also enhances the stability and safety of the transportation platform, stably deals with the fluctuation problem of the ship, and thus provides a new idea for transporting the cargo from the shore to the deck of the ship in the field of the ship.

Description

Technical Field

[0001] This invention relates to the field of marine transportation technology, and in particular to a ship-to-shore cargo transportation system and method. Background Technology

[0002] In the shipbuilding industry, three ship types are considered the "crown jewels," and large LNG carriers are one of them. Currently, there are two types of large LNG cargo containment systems—the Mark III membrane containment system and the NO96 membrane containment system. Relatively speaking, the Mark III membrane containment system has a lower cargo evaporation rate, and its insulation and corrugated plate types are easier to construct. Furthermore, the Mark III membrane containment system has a stronger ability to resist the sloshing impact caused by partial loading of the liquid cargo tank, making it more suitable for the construction of large liquid cargo tanks.

[0003] In traditional construction, Mark III LNG carriers have side process doors on the hull of their cargo tanks. Cargo is transported from land to the ship via forklifts, allowing personnel to move goods, equipment, and scaffolding through these doors. However, repairing these side process doors takes over a month. Additionally, the liquid dome area requires protection during construction. Traditionally, this is achieved by placing weatherproofing or dome-like fixtures on top of the liquid dome before the pump tower and dome are installed to prevent dust and rainwater from entering the tank.

[0004] To shorten the construction cycle and improve construction efficiency, a new construction scheme was proposed for Mark III LNG carriers. During the construction of the cargo tanks, the side process doors were eliminated, and personnel and cargo entered and exited through the liquid dome. A newly designed four-story canopy warehouse was placed on top of the liquid dome for the transfer of insulation panels, caulking, and personnel access. The insulation panels used during construction needed to be transported from the ground platform to the canopy warehouse on the LNG carrier deck. A shore-to-ship cargo transport system was designed to accommodate the shore-to-ship cargo transport needs of different ship types, taking into account the ship's shore-to-ship cargo transport capabilities and the ship's movement on the water. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the present invention provides a ship-to-shore cargo transportation system, the transportation system comprising:

[0006] A vertical freight elevator transport platform includes a vertically arranged ground support structure, a vertical freight elevator, and a traction-type mobile transport trolley; the vertical freight elevator can move up and down along the ground support structure to vertically transport the traction-type mobile transport trolley.

[0007] An aerial transport platform includes a horizontally arranged aerial support structure and a traction mechanism. The left end of the aerial support structure is connected to the upper end of the ground support structure, and the right end of the aerial support structure is connected to a covered warehouse located on a liquid cargo tank. The traction mechanism is used to transport a towed mobile transport vehicle laterally along the aerial support structure.

[0008] Preferably, the elevator is equipped with a limiting device inside to fix the position of the traction-type mobile transport trolley and prevent the trolley from sliding.

[0009] Preferably, the traction mobile transport trolley is equipped with a lifting bracket on its side and rollers at its bottom; the lifting bracket facilitates hooking and pulling by the traction mechanism, and the rollers facilitate horizontal movement.

[0010] Preferably, the traction mechanism includes a transmission component located on the aerial support mechanism, a lifting component and a slewing component located on the left and right sides of the transmission component, respectively. The hook of the lifting component is used to hook the towed mobile transport vehicle from the helicopter freight elevator platform and transport it to the canopy warehouse under the action of the transmission component. The slewing component is used to retrieve the hook from the lifting component and transport the towed mobile transport vehicle back to the helicopter freight elevator platform under the action of the transmission component.

[0011] Preferably, the connection between the aerial support structure and the ground support structure is provided with a diagonal reinforcing structure, and a vertical reinforcing structure is connected to the lower part of the right side segment of the aerial support structure, with the lower end of the vertical reinforcing structure fixedly connected to the liquid cargo tank.

[0012] Preferably, the aerial support structure includes a left segment and a right segment. The left segment is connected to the ground support structure, and the right segment is connected to the canopy warehouse. The left segment and the right segment are connected by a through structure, which is a soft connection between the two segments, and the four sides are sealed with rubber tarpaulin.

[0013] Preferably, the through structure includes a linkage structure, which includes two vertically parallel connecting plates and a rod body that is cross-connected between the two connecting plates. The two connecting plates are fixedly connected to the left segment and the right segment, respectively. When the ship moves up and down, the right segment drives the right connecting plate to move up and down, and the included angle between the rod bodies changes accordingly, which causes the upper end face of the linkage structure to tilt. The entire linkage structure expands and contracts in the vertical and horizontal directions.

[0014] Preferably, multiple parallel flat plates are laid and fixed on the upper surface of the linkage structure, and the gaps between adjacent flat plates are connected by roller shutters. Hinges are also fixed on the upper surface of the flat plates, and the hinge pivots are parallel to the gaps between adjacent flat plates. The hinge plates that are close to each other on adjacent flat plates are connected by movable chains.

[0015] Preferably, the plate at the left and right edges of the through structure is connected to the left and right segments respectively by a buffer strip to form a slope to eliminate the step difference between the plate and the segment when the plate moves up and down.

[0016] A transportation method using the transportation system includes the following steps:

[0017] S1: The insulation boards are stored in the dock warehouse and sealed in fixed-size containers. Operators use forklifts or AGVs to move the containers to the vicinity of the ground cargo elevator shaft.

[0018] S2: The operator manually controls the switch of the freight elevator. When the freight elevator is empty, the operator directly places the cargo box to be transported into the freight elevator; otherwise, when the freight elevator contains leftover boards transported from the third floor of the warehouse on the ship's deck, the leftover boards are first removed from the freight elevator using a forklift, and then the cargo box to be transported is placed into the freight elevator.

[0019] S3: The freight elevator reaches a fixed vertical height via steel cable traction. At this point, the sensor receives the signal that the elevator has reached the designated position and opens the elevator door. After the elevator door opens, the traction mechanism starts and uses the lifting component inside the aerial transport platform to reach the fixed position of the elevator and hook the lifting bracket of the trolley carrying the cargo box. The staff operates the equipment inside the third floor of the covered warehouse to pull the trolley away from the elevator. After the elevator force sensor receives the empty elevator signal, the elevator door automatically closes.

[0020] S4: The staff operates the winch to move the trolley on the aerial transport platform by the force of the traction rope, and finally pulls the cargo box and its transport trolley into the third floor of the canopy warehouse. The cargo box is unloaded and placed in the corresponding cargo box storage area. At the same time, the remaining materials of the previously unsealed cargo box are placed in the emptied transport trolley. The winch is then operated to send the remaining materials and its transport trolley back to the freight elevator along the aerial transport platform.

[0021] S5: Workers use hydraulic trucks to sort and unpack goods, and transport the unsealed insulation boards to the glue application platform on the second floor of the covered warehouse by hand-operated hoists to complete the glue application. The remaining materials of the unsealed boxes are then stacked in the surplus material area. After the parts are glued, they are directly transported into the liquid cargo tank by the built-in cargo elevator for installation, thus realizing the complete production and transportation process of the insulation boards.

[0022] As described above, this invention provides a ship-to-shore cargo transportation system and method. The cargo transportation system includes an interconnected vertical cargo elevator platform and an aerial transport platform, enabling the movement of cargo between a ground warehouse and a covered warehouse. This application divides the aerial support structure into a left-side segment and a right-side segment, connected by a through-structure to achieve a flexible connection between the two segments, solving the docking stress problem caused by ship undulation and swaying. The implementation of this invention signifies a new method for transporting cargo from the ground to the ship's deck in the shipping industry. It not only increases cargo handling speed and ensures production rhythm but also enhances the stability and safety of the transportation platform, smoothly handling the ship's undulations, thus providing a new approach for transporting cargo from the shore to the ship's deck in the shipping industry. Attached Figure Description

[0023] Figure 1 The diagram shown is a schematic representation of the overall structure of the cargo transportation system of the present invention.

[0024] Figure 2 The diagram shown is a structural schematic of the traction mechanism of the present invention.

[0025] Figure 3 The diagram shown is a side view of the linkage structure of the present invention.

[0026] Figure 4 The diagram shown is a top view of the flat plate laying structure of the present invention.

[0027] Component designation explanation

[0028] 1. Dock warehouse; 2. Ground freight elevator shaft platform; 3. Aerial transport platform; 4. Shelter warehouse; 5. Liquid cargo tank; 6. Ground support structure; 7. Helicopter; 8. Traction-type mobile transport trolley; 9. Reinforced structure; 10. Aerial support structure; 11. Traction mechanism; 12. Through structure; 111. Lifting assembly; 112. Transmission assembly; 113. Rotating assembly; 120. Connecting plate; 121. Rubber canopy; 122. Linkage structure; 123. Flat plate; 124. Roller shutter; 125. Hinge; 126. Movable chain; 127. Buffer belt. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] In the detailed description of embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for the device in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it can be the only layer between the two layers, or there may be one or more layers in between. The term “between” as used herein includes both endpoint values.

[0032] In the context of this application, the structure described above the first feature may include embodiments in which the first and second features are formed in direct contact, or embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.

[0033] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] like Figure 1 As shown, the present invention provides a ship-to-shore cargo transportation system, specifically including:

[0035] The vertical freight elevator transport platform includes a vertically arranged ground support structure 6, a vertical freight elevator 7, and a traction-type mobile transport trolley 8. The vertical freight elevator 7 can move up and down along the ground support structure 6 to vertically transport the traction-type mobile transport trolley 8.

[0036] Specifically, the ground support structure 6 adopts vertical support, providing vertical support and stability for the elevator 7 during operation. This effectively supports the upper structure of the elevator as it ascends to higher altitudes, ensuring no deformation or tilting. It establishes a rigid connection with the ground, transferring the vertical load of the elevator to the ground or foundation, ensuring the stability and safety of the elevator's operation. The elevator 7 is used to transport trolleys and goods to designated heights. It is equipped with internal limit devices to fix the position of the traction-type mobile transport trolley 8 and prevent slippage. The elevator 7 is designed in a long, narrow shape to ensure its precision, strength, and safety performance. Guide rods are installed on both sides of the elevator 7, and sliders are installed at the top and bottom. The sliders, in conjunction with the guide rods, ensure stable vertical operation of the elevator. The elevator 7 has double doors. The traction-type mobile transport trolley 8 is equipped with rollers at the bottom and lifting brackets on the sides for changing its path when switching from vertical to horizontal.

[0037] The aerial transport platform 3 includes a horizontally arranged aerial support structure 10 and a traction mechanism 11. The left end of the aerial support structure 10 is connected to the upper end of the ground support structure 6, and the right end of the aerial support structure 10 is connected to the canopy warehouse 4 located on the liquid cargo tank 5. The traction mechanism 11 is used to transport a towed mobile transport trolley 8 laterally along the aerial support structure 10. The towed mobile transport trolley 8 is equipped with a lifting bracket on its side and rollers at its bottom. The lifting bracket facilitates hooking and pulling by the traction mechanism 11, and the rollers facilitate horizontal movement.

[0038] Specifically, such as Figure 2 As shown, the traction mechanism 11 includes a transmission assembly 112 located on the aerial support mechanism, a lifting assembly 111 located on the left and right sides of the transmission assembly 112, and a slewing assembly 113. The hook of the lifting assembly 111 is used to hook the towed mobile transport trolley 8 from the helicopter freight elevator platform and transport it to the covered warehouse 4 under the action of the transmission assembly 112. The slewing assembly 113 is used to retrieve the hook from the lifting assembly 111 and transport the towed mobile transport trolley 8 back to the helicopter freight elevator platform under the action of the transmission assembly 112. The lifting assembly 111 can move up and down to accommodate loads at different heights.

[0039] The connection between the aerial support structure 10 and the ground support structure 6 is provided with a diagonally braced reinforcing structure 9 (diagonal beam support). The lower part of the right side segment of the aerial support structure 10 is connected to a vertical reinforcing structure 9 (vertical beam support), and the lower end of the vertical reinforcing structure 9 is fixedly connected to the liquid cargo tank 5.

[0040] Specifically, all of the above connections are rigid connections. The aerial transport platform 3 uses a steel structure for its long span and high cantilever design, while also meeting the load requirements of the transport trolley. The platform's steel structure features a lightweight design to reduce the overall platform load. Materials can be used to cover the platform's steel structure for rain protection and structural protection. The ground support structure 6, the aerial transport platform 3, and the sheltered warehouse 4 are all rigidly connected. Rigid connections place significant stress on these four structures; therefore, reinforcement is added using supporting structures (diagonal beams and vertical beams) to enhance the stability of the aerial transport platform 3.

[0041] The traction mechanism 11 utilizes the transmission component 112 to drive the hook to a fixed position, engaging the lifting weight of the transport trolley for precise positioning and transportation. Simultaneously, using the slewing component, workers in the covered warehouse 4 engage the hook with the lifting weight of the transport trolley, driving the trolley in the opposite direction on the aerial transport platform 3 back into the freight elevator. Once the transport trolley reaches the designated height with the freight elevator door, the lifting component 111 activates, raising the hook to a fixed height and moving it horizontally to the lifting weight of the transport trolley, engaging it. Workers operate the equipment to drive the transmission component 112, moving the transport trolley to the covered warehouse 4. The slewing component then automatically activates, retracting the hook. When a trolley carrying surplus materials needs to be returned to the ground, the slewing component activates, engaging the trolley's lifting weight and returning it to the freight elevator, thus completing the logistics turnover of the cargo box and surplus materials. This device has two functions: firstly, using the transmission component 112 to drive the hook to a fixed position, engaging the lifting weight of the transport trolley for precise positioning and transportation. Secondly, by using the rotary component, the staff in the covered warehouse 4 hooks the hook to the lifting weight of the transport trolley, and drives the transport trolley to move in the air transport platform 3 to send it back into the freight elevator.

[0042] Furthermore, the aerial support structure 10 includes a left-side segment and a right-side segment. The left-side segment is connected to the ground support structure 6, and the right-side segment is connected to the canopy warehouse 4. The left-side segment and the right-side segment are connected by a through structure 12, which is a flexible connection between the two segments. The through structure 12 is designed to be sealed with rubber tarpaulin 121 on all four sides to prevent the intrusion of rainwater and dust. The through structure 12 is used to solve the cushioning problem when the ship is rocking up and down.

[0043] Specifically, such as Figure 3 , Figure 4As shown, the through structure 12 includes a connecting rod structure 122, which includes two vertically parallel connecting plates 120 and a rod that crosses between the two connecting plates 120. The two connecting plates 120 are fixedly connected to the left and right segments respectively. When the ship moves up and down, the right segment drives the right connecting plate 120 to move up and down, and the angle between the rods changes accordingly, causing the upper end face of the connecting rod structure 122 to tilt. The entire connecting rod structure 122 expands and contracts in the vertical and horizontal directions. Multiple parallel flat plates 123 are laid and fixed on the upper end face of the connecting rod structure 122. The gaps between adjacent flat plates 123 are connected by roller shutters 124. Hinges 125 are also fixed on the upper surface of the flat plates 123. The pivot of the hinges 125 is parallel to the gap between adjacent flat plates 123. The hinges 125 that are close to each other on adjacent flat plates 123 are connected by movable chains 126. The hinge 125 includes two leaf plates. The left leaf plate is connected to the hinge 125 located on the left flat plate 123, and the right leaf plate is connected to the hinge 125 located on the right flat plate 123.

[0044] The plate 123 located on the left and right edges of the through structure 12 is connected to the left and right segments respectively by a buffer strip 127 to form a slope to eliminate the step difference between the plate 123 and the segments when the plate 123 moves up and down.

[0045] Specifically, the hinges slide using movable chains, providing buffer and space for the entire transmission platform. When the ship is in a normal, stable state, the through-structure 12 is horizontally stable, meaning the plates 123 are horizontally joined without gaps, allowing the roller trolley to move smoothly horizontally. When the ship rises and falls, according to the Pythagorean theorem, the corresponding value of the through-structure's expansion and contraction is obtained, and the connecting rod structure 122 expands and contracts accordingly, causing its upper surface to tilt and move up and down. During the ship's rise and fall, the rubber canopy stretches, the connecting rod mechanism stretches, the hinges between plates 123 are connected by movable chains 126, and the roller shutter 124 fills the gaps between plates 123. The trolley does not move horizontally, exhibiting both upward and downward movement. A buffer strip 127 is installed at the ground connection point between the through-structure 12 and the aerial transmission platform 3, allowing the roller trolley to move smoothly on it. The through-structure 12 achieves a soft connection between the two segments, providing a flat passage and buffer for the transport of insulation boards, improving the transport speed and stability of the insulation boards, and solving the problem of the ship's rise and fall on the water.

[0046] Furthermore, the towable mobile transport trolley 8 is designed to accommodate a single cargo box, stacked in double layers. The trolley is equipped with wheels at the bottom and lifting brackets on the sides. Placed within a lifting elevator 7, the trolley is pulled to a designated height by steel cables.

[0047] The entire transportation system operates as follows: Warehouse 1 at the dock stores fixed-size containers encased in insulating panels. Operators use forklifts or AGVs to move the containers to the ground-level freight elevator platform 2. Platform 2 controls the vertical transport of the freight elevator, transferring the containers from the ground to the air and returning any remaining materials to the ground. Platform 2 then transports the containers to the overhead transport platform 3. Platform 3 controls the vertical-to-horizontal movement of the insulating panels. Internal sensors on platform 3 receive signals to control the opening and closing of the freight elevator doors. Once the doors open, the internal platform traction device uses a moving mechanism to reach the fixed position on the freight elevator, engaging the lifting mechanism of the trolley carrying the containers. Workers operate equipment to pull the trolley and cargo box away from the aerial transport platform 3. Simultaneously, internal sensors receive an empty elevator signal and automatically close the elevator doors. The cargo box on the aerial transport platform 3 is transported by the trolley to the covered warehouse 4. The covered warehouse 4 is where the insulation boards are unpacked, sorted, and glued. Workers operate equipment to pull the cargo box and its transport trolley into the third floor of the covered warehouse, placing the remaining materials from the previously unpacked cargo box into the emptied transport trolley. The equipment then returns the remaining materials and the transport trolley to the aerial transport platform 3. Inside the covered warehouse 4, workers perform sorting and unpacking operations, transporting the unpacked parts by hoist to the glue-applying platform on the second floor of the covered warehouse for glue application. The remaining materials from the unpacked cargo box are then piled in the waste material area. The glued parts in the covered warehouse 4 are then transported directly to the liquid cargo tank 5 via a built-in elevator in the liquid cargo tank, where installation is carried out, completing the entire production and installation process for the insulation boards.

[0048] Based on the above transportation system, the present invention also provides a transportation method, comprising the following steps:

[0049] S1: The insulation board is stored in the dock warehouse 1 and sealed in a fixed-size cargo box. The operator moves the cargo box to the vicinity of the ground cargo elevator shaft by using a forklift or operating an AGV trolley.

[0050] S2: The operator manually controls the elevator's switch. When the elevator is empty, the operator directly places the cargo box to be transported into it. Otherwise, if the elevator contains leftover boards transported from the third floor of the ship's deck warehouse, the operator needs to use a forklift to remove the boards from the elevator before placing the cargo box into it. The operator needs to determine the cargo box information, including the quantity of insulation boards and the corresponding part models, to facilitate the subsequent organization and installation sequence of the insulation boards.

[0051] S3: The lifting freight elevator reaches a fixed vertical height via steel cable traction. Upon receiving the elevator's arrival at the designated position, the sensor will open the elevator doors. The lifting freight elevator uses a double-door design. After the doors open, the traction mechanism activates, using a lifting assembly within the aerial transport platform to reach the elevator's fixed position and engage the lifting mechanism on the trolley carrying the cargo container. Workers inside the third floor of the covered warehouse then operate equipment to pull the trolley away from the elevator. Upon receiving an empty elevator signal from the elevator force sensor, the elevator doors automatically close.

[0052] S4: The staff operates the winch to move the trolley on the aerial transport platform by the force of the traction rope, and finally pulls the cargo box and its transport trolley into the third floor of the canopy warehouse. The cargo box is unloaded and placed in the corresponding cargo box storage area. At the same time, the remaining materials of the previously unsealed cargo box are placed in the emptied transport trolley. The winch is then operated to send the remaining materials and its transport trolley back to the freight elevator along the aerial transport platform.

[0053] S5: Workers use hydraulic trucks to sort and unpack the goods, then use hand-operated hoists to transport the unsealed insulation boards to the glue-applying platform on the second floor of the covered warehouse for glue application. The remaining materials from the unsealed boxes are then stacked in the scrap area. After the parts are glued, they are directly transported into the liquid cargo tank via the built-in elevator for installation, completing the entire production and transportation process for the insulation boards.

[0054] In summary, this invention provides a ship-to-shore cargo transportation system and method. The cargo transportation system includes an interconnected vertical cargo elevator platform and an aerial transport platform, enabling the movement of cargo between a ground warehouse and a covered warehouse. This application divides the aerial support structure into a left-side segment and a right-side segment, connected by a through-structure to achieve a flexible connection between the two segments, thus solving the docking stress problem caused by ship undulation and swaying. The implementation of this invention signifies a new method for transporting cargo from the ground to the ship's deck in the maritime field. This not only increases cargo handling speed and ensures production rhythm but also enhances the stability and safety of the transport platform, smoothly handling the ship's undulations, thereby providing a new approach to transporting cargo from the shore to the ship's deck in the maritime field.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A ship-to-shore cargo transportation system, characterized in that, The transportation system includes: A vertical freight elevator transport platform includes a vertically arranged ground support structure, a vertical freight elevator, and a traction-type mobile transport trolley; the vertical freight elevator can move up and down along the ground support structure to vertically transport the traction-type mobile transport trolley. An aerial transport platform includes a horizontally arranged aerial support structure and a traction mechanism. The left end of the aerial support structure is connected to the upper end of the ground support structure, and the right end of the aerial support structure is connected to a covered warehouse located on a liquid cargo tank. The traction mechanism is used to transport a towed mobile transport vehicle laterally along the aerial support structure. The aerial support structure includes a left segment and a right segment. The left segment is connected to the ground support structure, and the right segment is connected to the canopy warehouse. The left and right segments are connected by a through structure, which is a flexible connection between the two segments and is sealed with rubber tarpaulin on all sides. The through structure includes a connecting rod structure, which includes two vertically parallel connecting plates and rods that are cross-connected between the two connecting plates. The two connecting plates are fixedly connected to the left and right segments respectively. When the ship moves up and down, the right segment drives the right connecting plate to move up and down, and the angle between the rods changes accordingly, causing the upper surface of the connecting rod structure to tilt. The entire connecting rod structure expands and contracts in both the vertical and horizontal directions.

2. The ship-to-shore cargo transportation system according to claim 1, characterized in that: The elevator is equipped with a limit device to fix the position of the traction-type mobile transport trolley and prevent the trolley from sliding.

3. The ship-to-shore cargo transportation system according to claim 1, characterized in that: The traction mobile transport trolley is equipped with a lifting bracket on its side and rollers at its bottom; the lifting bracket facilitates hooking and pulling by the traction mechanism, and the rollers facilitate horizontal movement.

4. The ship-to-shore cargo transportation system according to claim 1, characterized in that: The traction mechanism includes a transmission component located in the aerial support mechanism, a lifting component and a slewing component located on the left and right sides of the transmission component, respectively. The hook of the lifting component is used to hook the towed mobile transport vehicle from the helicopter freight elevator platform and transport it to the canopy warehouse under the action of the transmission component. The slewing component is used to retrieve the hook from the lifting component and transport the towed mobile transport vehicle back to the helicopter freight elevator platform under the action of the transmission component.

5. The ship-to-shore cargo transportation system according to claim 1, characterized in that: The connection between the aerial support structure and the ground support structure is provided with a diagonal reinforcing structure. A vertical reinforcing structure is connected to the lower part of the right side segment of the aerial support structure, and the lower end of the vertical reinforcing structure is fixedly connected to the liquid cargo tank.

6. The ship-to-shore cargo transportation system according to claim 1, characterized in that: Multiple parallel flat plates are laid and fixed on the upper surface of the linkage structure. The gaps between adjacent flat plates are connected by roller shutters. Hinges are also fixed on the upper surface of the flat plates. The hinge pivots are parallel to the gaps between adjacent flat plates. The hinge plates that are close to each other on adjacent flat plates are connected by movable chains.

7. The ship-to-shore cargo transportation system according to claim 6, characterized in that: The through structure has flat plates on the left and right edges connected to the left and right segments respectively by buffer strips to form slopes to eliminate the step difference between the flat plates and the segments when they move up and down.

8. A transportation method using the transportation system according to any one of claims 1-7, characterized in that, Includes the following steps: S1: The insulation boards are stored in the dock warehouse and sealed in fixed-size containers. Operators use forklifts or AGVs to move the containers to the vicinity of the ground cargo elevator shaft. S2: The operator manually controls the switch of the freight elevator. When the freight elevator is empty, the operator directly places the cargo box to be transported into the freight elevator; otherwise, when the freight elevator contains leftover boards transported from the third floor of the warehouse on the ship's deck, the leftover boards are first removed from the freight elevator using a forklift, and then the cargo box to be transported is placed into the freight elevator. S3: The freight elevator reaches a fixed vertical height via steel cable traction. At this point, the sensor receives the signal that the elevator has reached the designated position and opens the elevator door. After the elevator door opens, the traction mechanism starts and uses the lifting component inside the aerial transport platform to reach the fixed position of the elevator and hook the lifting bracket of the trolley carrying the cargo box. The staff operates the equipment inside the third floor of the covered warehouse to pull the trolley away from the elevator. After the elevator force sensor receives the empty elevator signal, the elevator door automatically closes. S4: The staff operates the winch to move the trolley on the aerial transport platform by the force of the traction rope, and finally pulls the cargo box and its transport trolley into the third floor of the canopy warehouse. The cargo box is unloaded and placed in the corresponding cargo box storage area. At the same time, the remaining materials of the previously unsealed cargo box are placed in the emptied transport trolley. The winch is then operated to send the remaining materials and its transport trolley back to the freight elevator along the aerial transport platform. S5: Workers use hydraulic trucks to sort and unpack goods, and transport the unsealed insulation boards to the glue application platform on the second floor of the covered warehouse by hand-operated hoists to complete the glue application. The remaining materials of the unsealed boxes are then stacked in the surplus material area. After the parts are glued, they are directly transported into the liquid cargo tank by the built-in cargo elevator for installation, thus realizing the complete production and transportation process of the insulation boards.

Images