Helicopter landing platform for a ship

Abstract

This application relates to a helicopter landing platform for ships. The helicopter landing platform includes: a support column, vertically fixed to the main deck of the ship along its height direction, forming a double-layer platform structure supported by independent columns. The upper layer serves as a helicopter take-off and landing area, while the lower layer serves as a sightseeing and leisure area for personnel. This achieves multi-functional reuse of the same support structure and makes full use of the ship's vertical space without occupying the cargo hold area on the main deck; a first platform, level with the ship's roof and spatially adjacent to it, allowing personnel passage through at least one of the following methods: level passage, stairs, or bridge, located at the top of the support column, used for helicopter parking and take-off and landing; and a second platform, level with the ship's compass deck and spatially adjacent to it, allowing personnel passage through at least one of the following methods: level passage, stairs, or bridge, located in the middle of the support column, used for personnel activities.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding and marine engineering technology, and more specifically, to a helicopter parking platform for ships. Background Technology

[0002] As marine resource development activities gradually extend to the deep sea, engineering mother ships, as the core equipment platform for offshore operations, undertake multiple tasks such as equipment transportation, construction support, personnel support, and emergency response. Helicopters, due to their vertical takeoff and landing and maneuverability, have been widely used in scenarios such as crew changes at sea, emergency medical evacuations, aerial patrols, rapid material transfer, and search and rescue, becoming an indispensable means of aerial support for modern marine engineering operations.

[0003] However, during the design and construction phase, most existing engineering mother ships prioritize the placement of large engineering equipment in their main deck and cargo hold areas. This equipment is bulky, has complex mounting bases, and requires strict space for operation and maintenance, often occupying the majority of the available deck area. This problem of limited deck space is particularly pronounced for older ship types or when functional modifications are being made to existing engineering mother ships. Under conventional practices, it is difficult to create additional helicopter take-off and landing areas that meet aviation safety regulations in the cargo hold area or main deck.

[0004] Furthermore, while the superstructure roofs of existing engineering motherships, such as the bridge roof and compass deck, offer some space, they are typically only used to house essential ship equipment like radar antennas, communication equipment, signal masts, and ventilation ducts, and are not fully utilized as platforms for personnel activities or aviation operations. During long periods at sea, crew members have extremely limited space for leisure and recreation, making it difficult to effectively guarantee their mental health and living comfort. This is a common shortcoming in the human-centered design of current engineering motherships. Summary of the Invention

[0005] This application provides a helicopter parking platform for ships that can meet the aviation function requirements for safe take-off, landing and parking of helicopters, while also taking into account the leisure and sightseeing needs of crew members, without interfering with the original engineering equipment layout, and with an independent structure that is easy to modify.

[0006] This application provides a helicopter landing platform for a ship, comprising: a support column, vertically fixed to the main deck of the ship along its height direction; a first platform, level with the ship's roof and spatially adjacent to it, allowing personnel passage via at least one of a level passage, stairs, or a bridge, located at the top of the support column, for helicopter parking and take-off / landing; and a second platform, level with the ship's compass deck and spatially adjacent to it, allowing personnel passage via at least one of a level passage, stairs, or a bridge, located in the middle of the support column, for personnel activities.

[0007] In some optional embodiments, multiple support columns are provided, and the multiple support columns are distributed in a rectangular array to bear the structural weight of the first platform and the second platform.

[0008] In some alternative embodiments, a vertical passage is provided between the first platform and the second platform to allow personnel to move up and down.

[0009] In some optional embodiments, the first platform is provided with at least a plurality of emergency exits, which are distributed in a rectangular array and are arranged close to each other in a one-to-one correspondence with a plurality of supporting columns.

[0010] In some alternative embodiments, the distribution of the support columns includes a straight ladder arranged vertically along the support columns at the emergency exit, which extends to the main deck of the ship for personnel evacuation in an emergency.

[0011] In some alternative embodiments, the first platform is further provided with at least one conventional exit communicating with the compass deck of the vessel, the conventional exit being provided with a straight ladder arranged along the height direction of the vessel, the straight ladder extending from the conventional exit to the compass deck of the vessel.

[0012] In some alternative embodiments, both the first platform and the second platform are equipped with protective fences around their perimeters.

[0013] In some alternative embodiments, the deck surface of the first platform is provided with a drain outlet, which is connected to a drainage pipe that extends downward along the interior or exterior wall of the supporting column to the main deck surface to drain the accumulated water from the first platform.

[0014] In some alternative embodiments, the first platform is functionally connected to the roof of the ship via any one of a passageway, a bridge, or stairs; the second platform is functionally connected to the compass deck of the ship via any one of a passageway, a bridge, or stairs.

[0015] In some alternative embodiments, a fireproof partition structure is provided between the roof of the first platform and the canopy of the vessel.

[0016] Compared with the prior art, the present invention has the following technical advantages: This application provides a helicopter landing platform for a ship, comprising: a support column, vertically fixed to the main deck of the ship along its height direction, directly transferring the platform load to the main deck with a clear force path, not relying on the roof or compass deck for load-bearing, avoiding additional burden on the superstructure, and solving the spatial conflict problem in the prior art where the dense equipment in the cargo hold area cannot be arranged for a helipad; a first platform, level with the ship's roof and spatially adjacent to it, forming a continuous aviation operation plane, eliminating height differences, ensuring the safety of helicopter taxiing and mooring, and facilitating personnel to directly enter and exit the platform from the roof area without climbing, solving the safety hazards caused by excessive height difference between the helicopter landing surface and the ship's superstructure; and personnel passage is achieved through at least one of the following forms: a level passage, stairs, or a bridge, providing flexibility. The flexible personnel access path selection adapts to different ship type canopy structures. The bridge design allows for expansion gaps to accommodate hull deformation and thermal expansion and contraction, resolving connection difficulties between the first platform and the existing hull structure caused by manufacturing errors or sea condition deformation. It is located at the top of the support column and is used for helicopter parking and take-off / landing. The second platform is level with the ship's compass deck and the two are spatially adjacent. It utilizes the existing compass deck structure as a personnel gathering and dispersal node, reducing the cost of adding new passages. Personnel passage is achieved through at least one of the following methods: level passage, stairs, or bridge. It is located in the middle of the support column and is used for personnel activities. It does not require changes to the original cargo hold equipment layout, has a small amount of construction work, a short cycle, and low cost, solving the engineering problems of high difficulty and high cost when adding a helipad to an existing ship. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the installation of a helicopter parking platform for a ship according to an embodiment of the present invention; Figure 2 This is a top view of a helicopter parking platform for a ship according to an embodiment of the present invention. Figure 3 This is a top view of the compass deck and the second platform provided in one embodiment of the present invention.

[0018] Attached diagrams: 1-First platform; 2-Ship's roof; 3-Second platform; 4-Compass deck; 5-Leakage outlet; 6-Emergency exit. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0021] As marine resource development activities gradually extend to the deep sea, ships, as the core equipment platforms for offshore operations, undertake multiple tasks such as equipment transportation, construction support, personnel protection, and emergency response. Helicopters, due to their vertical takeoff and landing and maneuverability, have been widely used in scenarios such as crew changes at sea, emergency medical evacuations, aerial patrols, rapid material transfer, and search and rescue, becoming an indispensable means of aerial support for modern marine engineering operations.

[0022] However, during the design and construction phase, most existing ships prioritize the placement of large engineering equipment in their main deck and cargo hold areas. This equipment is bulky, has complex mounting bases, and requires strict space for operation and maintenance, often occupying the majority of the usable deck area. This problem of limited deck space is particularly pronounced for older ship types or for functional modifications to existing vessels, making it difficult, under conventional practices, to create additional helicopter take-off and landing areas that meet aviation safety regulations in the cargo hold area or main deck.

[0023] Furthermore, while the superstructure roofs of existing vessels, such as the bridge roof and compass deck, offer some space, they are typically only used to house essential ship equipment like radar antennas, communication devices, signal masts, and ventilation ducts, and are not fully utilized as platforms for personnel activities or aviation operations. During long periods at sea, crew members have extremely limited space for leisure and recreation, making it difficult to effectively guarantee their mental health and living comfort. This is a common shortcoming in the human-centered design of current engineering vessels.

[0024] Based on the above, there is an urgent need for a helicopter landing platform and vessel suitable for various installation scenarios. This platform should meet the aviation requirements for safe helicopter take-off, landing, and parking, while also catering to the leisure and sightseeing needs of the crew, without interfering with existing engineering equipment layout, and with an independent structure that is easy to modify. The following is based on the accompanying drawings in the instruction manual. Figures 1-3 A detailed description of the ship's helicopter parking platform is provided.

[0025] This application provides a helicopter landing platform for a ship, comprising: a support column, vertically fixed to the main deck of the ship along the height direction of the ship; a first platform 1, which is at the same height as the ship's roof 2 and is spatially adjacent to it, allowing personnel passage through at least one of the following forms: a level passage, stairs, or a bridge, and is located at the top of the support column for helicopter parking and take-off and landing; and a second platform 3, which is at the same height as the ship's compass deck 4 and is spatially adjacent to it, allowing personnel passage through at least one of the following forms: a level passage, stairs, or a bridge, and is located in the middle of the support column for personnel activities.

[0026] Specifically, the support columns are vertically fixed to the main deck along the ship's height, directly transferring the platform load to the main deck. The force path is clear, and it does not rely on the ship's roof 2 or compass deck 4 for load-bearing, avoiding additional burden on the superstructure. This provides concealed space for drainage pipes and ladders, resolving the spatial conflict problem in existing technologies where dense equipment in the cargo hold area prevents the placement of a helipad. By setting up independent support columns for the first platform 1 and the second platform 3, the first platform 1 serves as a helicopter landing and parking area, while the second platform 3 serves as a sightseeing and leisure area. This achieves multi-functional reuse of the same support structure, fully utilizing the ship's vertical space without occupying the main deck cargo hold area, thus solving the technical problem of limited deck space and the inability to place a helipad in existing ships. The support columns are directly fixed to the main deck, and the platform load is independently transferred to the ship's structural strength by the support columns, eliminating the need for large-scale structural reinforcement of the ship's roof 2 or compass deck 4. The first platform 1 is level with the ship's roof 2, and the second platform 3 is level with the compass deck 4, eliminating the height difference between the first platform 1 and the ship's superstructure. Personnel can communicate through level passages, stairs or bridges, ensuring the safety and convenience of daily passage and emergency evacuation.

[0027] The first platform 1 is arranged at the same height as the ship's roof 2 and adjacent to each other, forming a continuous aviation operation plane, eliminating the height difference, ensuring the safety of helicopter taxiing and mooring, and facilitating personnel to directly enter and exit the platform from the ship's roof 2 area without climbing, thus solving the safety hazards caused by the excessive height difference between the helicopter landing surface and the ship's superstructure.

[0028] Personnel can communicate through level passages, steps, or bridges, providing flexible options for personnel access. The platform adapts to the roof structure of different vessels, and the bridge design allows for expansion and contraction gaps to accommodate hull deformation and thermal expansion and contraction, thus solving connection difficulties between the platform and the existing hull structure caused by manufacturing errors or sea condition deformation.

[0029] The second platform 3 and the compass deck 4 are arranged at the same height and adjacent to each other. The existing structure of the compass deck 4 is used as a personnel gathering and dispersal node to reduce the cost of adding new passages. The second platform 3 and the compass deck 4 form a continuous leisure and sightseeing surface, expand the activity area, improve the quality of life of the crew at sea, and solve the problem of insufficient leisure space during long-term sea operations.

[0030] Platform 1 is used for helicopter parking and take-off and landing, enabling ships that originally lacked aviation support capabilities to perform helicopter operations, filling a technological gap and solving the problem that ships cannot perform aviation tasks such as rapid personnel transfer, emergency evacuation, and aerial patrol.

[0031] The second platform 3 is used for personnel activities, transforming the structural load into a functional space, realizing two uses for one column and two functions for one platform, improving space utilization, and solving the problems of low space utilization and single function caused by setting up only a single-story helipad.

[0032] In some optional embodiments, multiple support columns are provided, which are distributed in a rectangular array to support the structural weight of the first platform 1 and the second platform 3.

[0033] Specifically, multiple support columns are installed. The first platform 1 is located at the top of the support columns, and the second platform 3 is located in the middle of the support columns. This distributes the platform load to the hull structure, reduces the peak stress on each support column, improves the overall load-bearing capacity of the platform, and adapts to the dynamic impact loads during helicopter take-off and landing, such as landing impact force. Even if a single support column suffers localized damage, the platform can still remain stable for a certain period of time, improving safety.

[0034] The support columns can be correspondingly arranged at the bottom of the hull's longitudinal girder or strong transverse beam, forming a force transmission path for the platform load, support columns, and main deck. Multiple support columns are distributed in a rectangular array, forming a regular stress grid, ensuring uniform support for the platform both longitudinally and laterally. This prevents excessive deflection deformation at the edges of the first platform 1 and the second platform 3 due to uneven stress distribution. The rectangular array of columns also provides uniform multi-point support for the first platform 1 and the second platform 3 within the plane, avoiding stress concentration and localized deformation problems that are easily caused by single-point or linear support. Especially when helicopter takeoffs and landings generate concentrated dynamic loads, the rectangular array layout effectively disperses the impact force to each column, ensuring the structural safety of the platform.

[0035] Optionally, the number of supporting columns is four. The four supporting columns are arranged in a rectangular array and are respectively arranged in the four corner areas of the first platform 1 and the second platform 3. The number of supporting columns is not limited to four. Under the premise of meeting the structural strength requirements, it can be set to six, eight or more, and arranged in a rectangular, polygonal or ring array, depending on the platform area and the maximum takeoff weight of the helicopter.

[0036] In some alternative embodiments, a vertical passage is provided between the first platform 1 and the second platform 3 to allow personnel to move up and down.

[0037] Specifically, a vertical passageway is constructed between Platform 1 and Platform 3, enabling rapid personnel connection between the two platforms. This allows for transfer between the two platforms without navigating internal ship passageways, transforming the previously isolated Platforms 1 and 3 into a unified functional unit. After completing helicopter support operations, crew members can directly access Platform 2 via the vertical passageway or access Compass Deck 4 from Platform 2, avoiding long detours and improving personnel mobility. As a vertical connection between Platform 1 and Platform 2, the vertical passageway, together with the emergency elevator, forms a multi-path evacuation system. If one passageway becomes impassable due to fire or structural damage, the vertical passageway can be used as a backup.

[0038] Preferably, the vertical passage is any one of an inclined ladder, a straight ladder, or a spiral staircase, arranged in the area between two adjacent supporting columns. On the one hand, it utilizes the unused vertical space between the two platforms without occupying additional deck area. On the other hand, it allows personnel to quickly and conveniently travel between the upper helicopter landing platform and the lower observation platform, which not only meets the needs of daily maintenance and inspection but also ensures the efficiency of personnel evacuation in emergency situations.

[0039] The vertical passage is located near the personnel entrances and exits of the first platform 1 and the second platform 3, and corresponds in position to the regular exit and / or emergency exit 6 on the first platform 1, to form a continuous and short personnel passage path. Optionally, the vertical passage is an enclosed passage equipped with protective walls and weatherproof doors to protect personnel safety in adverse sea conditions.

[0040] In some optional embodiments, the second platform 3 is provided with at least a plurality of emergency exits 6, which are distributed in a rectangular array and are arranged close to each other with a plurality of supporting columns.

[0041] Specifically, multiple emergency exits 6 form evenly distributed evacuation paths within the rectangular plane of the second platform 3, minimizing the distance from any location on the second platform 3 to the nearest emergency exit 6. This significantly improves the efficiency of personnel evacuation in emergencies such as helicopter fires and fuel leaks.

[0042] In some alternative embodiments, the six emergency exits of the support columns are equipped with straight ladders arranged vertically along the support columns, extending to the main deck of the ship for personnel evacuation in emergency situations.

[0043] Specifically, six emergency exits are equipped with vertical ladders arranged along the supporting columns, extending to the main deck of the ship for personnel evacuation in emergencies. Each ladder consists of two longitudinally arranged ladder beams and multiple steps spaced between the two beams. The ladder beams are fixed to the side walls of the supporting columns via connectors. Optionally, the connectors are lugs or clamps welded to the side walls of the columns, and the ladder beams are detachably connected to the lugs or clamps via bolts for easy routine maintenance and replacement.

[0044] Furthermore, the straight ladder and drainage pipes are arranged on opposite sides of the supporting column, so that the circumferential space of the column can be fully utilized and the pipelines and ladders can be avoided from interfering with each other.

[0045] In some alternative embodiments, the first platform is further provided with at least one conventional exit, which is connected to the compass deck 4 of the ship. The conventional exit is provided with a straight ladder arranged along the height direction of the ship, which extends from the conventional exit to the compass deck 4 of the ship.

[0046] Specifically, the conventional exit ladder extends to the compass deck 4, which is typically located below the ship's roof 2, adjacent to but relatively independent of the first helicopter parking platform 1. When personnel pass through the conventional exit, the compass deck 4 area can be used as a buffer transition zone, preventing personnel from being directly exposed to the helicopter rotor rotation area from the edge of the first platform, thus improving the safety of personnel entering and exiting the parking area.

[0047] In some alternative embodiments, both the first platform 1 and the second platform 3 are provided with protective fences around their perimeters.

[0048] Specifically, protective fences are installed around the perimeter of Platform 1. These fences serve as both fall protection facilities and boundary markers for the helicopter parking area, enabling helicopter pilots to clearly identify the outline and boundaries of the helipad from the air, thus aiding in safe landings. The protective fences around Platform 1 provide crew members with safe viewing and activity boundaries without obstructing the view from above, creating a clear spatial division both visually and functionally.

[0049] Optionally, the height of the protective fence shall not be less than 1.0m, and the spacing between adjacent fence posts shall not be greater than 1.5m, in order to meet the statutory requirements for personnel fall protection in ship inspections.

[0050] In some optional embodiments, the deck surface of the first platform 1 is provided with a drain outlet 5, which is connected to a drainage pipe. The drainage pipe extends downward along the inside or outside of the supporting column to the main deck surface to drain the accumulated water of the first platform.

[0051] Specifically, the deck surface of the first platform 1 is provided with a drain outlet 5, which is connected to a drainage pipe. The drainage pipe extends downwards along the interior or exterior wall of the supporting column to the main deck surface to drain accumulated water from the first platform 1. The drain outlet 5 is located in a low-lying area of ​​the deck surface of the first platform 1 or near the base of the supporting column to ensure that rainwater, splash water, and decontamination water on the deck surface can naturally collect at the drain outlet 5 by gravity. Preferably, the drain outlet 5 is equipped with a grating cover to prevent personnel or tools from falling in, and to intercept larger debris to avoid clogging the drainage pipe. The drainage pipe is laid along the exterior wall of the supporting column and fixed to the side wall of the column by pipe clamps or clamps; or the drainage pipe passes through the internal cavity of the supporting column, using the supporting column itself as a protective sleeve for the pipe.

[0052] Specifically, the drainage pipes run directly along the pillars to the main deck, preventing water from overflowing into the ship's roof 2 or compass deck 4 area. This effectively protects the precision electronic equipment such as radar and communication antennas installed on the ship's roof 2, preventing seawater intrusion and damage to the equipment.

[0053] In some alternative embodiments, the first platform 1 is functionally connected to the ship's roof 2 via any one of a passageway, bridge, or stairs; the second platform 3 is functionally connected to the ship's compass deck 4 via any one of a passageway, bridge, or stairs.

[0054] Optionally, when the first platform 1 is at the same height as the upper surface of the ship's roof 2, the two are connected by a horizontal passage. The passage is a flat step or deck extension, with both ends fixedly connected to or overlapping the first platform 1 and the ship's roof 2, respectively, for pedestrian passage. Preferably, handrails or protective chains are provided on both sides of the passage to ensure the safety of personnel passing through.

[0055] When the upper surfaces of the second platform 3 and the compass deck 4 of the ship are at the same height, they are connected by a horizontal passage. The passage is a flat step or deck extension, with both ends fixedly connected to or overlapping the second platform 3 and the compass deck 4, respectively, for pedestrian passage. Preferably, handrails or protective chains are provided on both sides of the passage to ensure the safety of personnel passing through.

[0056] Optionally, when there is a gap between the first platform 1 and the ship's roof 2, and a rigid fixed connection is not suitable between them, for example, when it is necessary to absorb hull deformation or thermal expansion and contraction, a bridge can be used to connect them. The bridge includes a bridge deck and a hinged support disposed at at least one end of the bridge deck. The hinged support allows the bridge deck to rotate at a certain angle relative to the platform or the ship's roof 2 to absorb the relative displacement between the platform and the ship's roof 2.

[0057] When there is a gap between the second platform 3 and the ship's compass deck 4, and a rigid fixed connection is not suitable between the two, for example, when it is necessary to absorb hull deformation or thermal expansion and contraction, the two are connected by a bridge. The bridge includes a bridge deck and a hinged support disposed at at least one end of the bridge deck. The hinged support allows the bridge deck to rotate at a certain angle relative to the platform or the ship's roof 2 to absorb the relative displacement between the platform and the ship's roof 2.

[0058] Optionally, when there is a height difference between the first platform 1 and the ship's roof 2, the two are connected by stairs. The stairs include multiple steps and handrails on both sides. The upper end of the stairs connects to the first platform 1, and the lower end connects to the ship's roof 2, allowing personnel to move up and down. Preferably, the surface of the stairs is provided with anti-slip textures or anti-slip mats to prevent personnel from slipping.

[0059] When there is a height difference between the second platform 3 and the compass deck 4, they are connected by stairs. The stairs include multiple steps and handrails on both sides. The upper end of the stairs connects to the first platform 1, and the lower end connects to the ship's roof 2, allowing personnel to move up and down. Preferably, the surface of the stairs is provided with anti-slip textures or anti-slip mats to prevent personnel from slipping.

[0060] The first platform 1 is functionally connected to the ship's roof 2 and the second platform 3 to the compass deck 4 via passageways, bridges, or stairs, making the newly added platform structure functionally integrated with the ship's existing structure. Personnel can move freely and safely between the platform and the hull. The bridge connection method can adapt to the relative deformation between the platform and the hull structure, thermal expansion and contraction, hull deflection, etc., avoiding the additional stress caused by rigid connections, thus improving the safety and durability of the structure. The stair connection method can adapt to the differences in the height of the ship's roof 2 for different ship types, making the invention widely applicable to various ship types. In some alternative embodiments, a fireproof partition structure is provided between the first platform and the ship's roof 2.

[0061] Specifically, a fireproof partition structure is installed between the first platform 1 and the ship's roof 2 to prevent fire from spreading from the first platform 1 to the ship's roof 2 and the interior of the superstructure. This effectively isolates the helicopter landing area from the superstructure in terms of fire compartmentation. Even if a fire occurs on the helicopter, the flames and high-temperature smoke are confined to the platform area and will not spread to the ship's roof 2 and the interior of the superstructure, thus protecting the safety of the bridge, living quarters, and important electronic equipment.

[0062] In this invention, the term "multiple" refers to at least two or more, unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A helicopter parking platform for a ship, characterized in that, include: Support columns are vertically fixed to the main deck of the vessel along its height direction. The first platform (1) is level with the roof (2) of the ship and the two are arranged adjacent to each other in space. Personnel passage is achieved through at least one of the following forms: level passage, steps or bridge. It is set at the top of the supporting column and is used for the parking and take-off and landing of helicopters. The second platform (3) is level with the compass deck (4) of the ship and the two are arranged adjacent to each other in space. Personnel passage is achieved through at least one of the following forms: level passage, steps or bridge. It is located in the middle of the supporting column and is used for personnel activities.

2. The helicopter parking platform for a ship according to claim 1, characterized in that, The support columns are provided in multiple ways, and the multiple support columns are distributed in a rectangular array to bear the structural weight of the first platform (1) and the second platform (3).

3. The helicopter parking platform for a ship according to claim 1, characterized in that, A vertical passage is provided between the first platform (1) and the second platform (3) to allow personnel to move up and down.

4. The helicopter parking platform for a ship according to claim 1, characterized in that, The second platform (3) is provided with at least a plurality of emergency exits (6), which are arranged in a rectangular array and are located close to each other in correspondence with the plurality of supporting columns.

5. The helicopter parking platform for a ship according to claim 4, characterized in that, The distribution of the supporting columns: A straight ladder is provided at the emergency exit (6) along the vertical direction of the supporting columns, and the straight ladder extends to the main deck of the ship for personnel evacuation in case of emergency.

6. The helicopter parking platform for a ship according to claim 1, characterized in that, The first platform is also provided with at least one conventional exit, which is connected to the compass deck (4) of the ship. The conventional exit is provided with a straight ladder arranged along the height direction of the ship, which extends from the conventional exit to the compass deck (4) of the ship.

7. The helicopter parking platform for a ship according to claim 1, characterized in that, Both the first platform (1) and the second platform (3) are equipped with protective fences around their perimeter.

8. The helicopter parking platform for a ship according to claim 1, characterized in that, The first platform (1) has a drain outlet (5) on its deck surface. The drain outlet (5) is connected to a drainage pipe. The drainage pipe extends downward along the inside or outside of the supporting column to the main deck surface to drain the water accumulated on the first platform (1).

9. The helicopter parking platform for a ship according to claim 1, characterized in that, The first platform (1) and the roof (2) of the ship are functionally connected through any one of the following methods: passage, bridge or stairs; The second platform (3) and the compass deck (4) of the ship are functionally connected by any one of the following methods: passageway, bridge or stairs.

10. The helicopter parking platform for a ship according to claim 1, characterized in that, A fireproof partition structure is provided between the first platform (1) and the roof (2) of the ship.

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