Shipborne storage system of marine hidden folding ladder

Abstract

The invention provides a ship-borne storage system of a hidden marine folding ladder, which comprises a lower deck, a ceiling and an upper deck, and further comprises a folding ladder which is abutted against the lower deck in an unfolded state; the ship ladder storage device comprises a storage bin used for containing the folding ladder in a folded state, the storage bin is arranged between a ceiling and an upper deck, and the storage bin is defined by coamings. A movable plate movably connected with the ceiling is arranged at the bottom of the storage bin, and one end of the folding ladder is fixed to the inner surface of the movable plate; the top of the storage bin is provided with a bin cover movably connected with the upper deck. The shipborne storage system further comprises a driving mechanism which comprises a first driving piece and a second driving piece. The first driving piece is connected with the movable plate and the folding ladder; the second driving piece is connected with the storage bin and the bin cover. According to the shipborne storage system, the folding ladder can be completely hidden in the ship body in the non-folding state, and the working space of the lower deck and the working space of the upper deck cannot be permanently occupied.

Description

Technical Field

[0001] This invention belongs to the field of marine technology, specifically relating to a shipboard storage system for a concealed folding ladder. Background Technology

[0002] In some vessels (merchant ships, yachts, research vessels, etc.), there is often a need for vertical passageways from lower working or living cabins to upper open decks or small equipment. This requires passing through the ceiling from the lower cabin to the upper deck, but such passageways are used infrequently. Common practices include: 1) Installing fixed straight or inclined ladders, which permanently occupies valuable deck or cabin space, affecting equipment layout and personnel access; 2) Installing movable folding ladders, which need to be moved to a designated location before each use, inconvenient to operate, and unsafe in environments where ships often sway; 3) Installing simple concealed ladders, which, while not taking up space, are simply applying concealed staircases from home ceilings to ships, without fully considering the complexity of the ship's navigation environment and the need for waterproofing in cabins. Summary of the Invention

[0003] To address the aforementioned issues and enhance the applicability of concealed folding ladders on ships, this invention proposes a shipboard storage system for a concealed marine folding ladder, comprising a lower deck, a ceiling, and an upper deck. The shipboard storage system for the concealed marine folding ladder further includes: A folding ladder, which abuts against the lower deck when unfolded; A ship ladder storage device, comprising a storage compartment for accommodating the folded ladder in a folded state, the storage compartment being located between the ceiling and the upper deck, and the storage compartment being enclosed by a panel; The bottom of the storage compartment is provided with a movable plate that is movably connected to the ceiling, and one end of the folding ladder is fixed to the inner surface of the movable plate; The top of the storage compartment is equipped with a hatch that is movably connected to the upper deck; The ship ladder storage device also includes a drive mechanism, which includes a first drive component and a second drive component. The first driving component connects the movable plate and the folding ladder, and is used to fold or unfold the folding ladder; The second drive unit connects the storage compartment and the hatch, and is used to close or open the hatch.

[0004] Furthermore, the first driving element includes a first hydraulic rod; One end of the first hydraulic rod is connected to the movable plate, and the other end is connected to the folding ladder.

[0005] Furthermore, the second drive component includes a second hydraulic rod, one end of which is connected to the hatch cover and the other end of which is connected to the upper deck.

[0006] Furthermore, the folding ladder is provided with a ground support at one end away from the movable board, and the bottom of the ground support is provided with an anti-slip mat.

[0007] Furthermore, a sealing structure is provided between the hatch cover and the upper deck, the sealing structure including a sealing strip, a sealing platform and a waterproof groove; The sealing strip is arranged around the edge of the hatch cover, and the sealing strip protrudes outward. The sealing strip includes an inner foam strip and an outer solid strip. The sealing platform is disposed on the upper deck, and the sealing platform is provided with a groove; The waterproof channel is installed on the upper deck, located below the connection between the hatch cover and the upper deck. The bottom of the waterproof channel has an inclined slope and a drain outlet.

[0008] Furthermore, one side of the movable panel is hinged to the ceiling, and a first latch is provided between the movable panel and the ceiling; The first latch includes a first male latch, a first female latch, and a first motor; The first female buckle is disposed on the ceiling, the first male buckle is disposed on the movable plate, and the first motor is connected to the first male buckle to drive the first male buckle to engage with or disengage from the first female buckle.

[0009] Furthermore, the first latch is provided with a first emergency unlocking component, which includes a first rotating shaft and a rotating ring. One end of the first rotating shaft is connected to the first male latch, and the other end of the first rotating shaft passes through the movable plate and is connected to the rotating ring.

[0010] Furthermore, one side of the hatch is hinged to the upper deck, and a second latch is provided between the hatch and the upper deck; The second latch includes a second male latch, a second female latch, and a second motor; The second female buckle is located on the upper deck, the second male buckle is located on the hatch cover, and the second motor is connected to the second male buckle to drive the second male buckle to engage with or disengage from the second female buckle.

[0011] Furthermore, the second locking structure is provided with a second emergency unlocking component, which includes a second pivot, a first handle and a second handle. One end of the second pivot is connected to the second male latch and the first handle, and the other end of the pivot passes through the hatch and is connected to the second handle.

[0012] The beneficial effects of this invention are as follows: This invention provides a concealed marine folding ladder storage system, achieving both concealed storage and convenient use of the folding ladder. The storage compartment is located between the ceiling and the upper deck, without occupying effective space in the lower cabin, while ensuring the flatness of the upper deck, facilitating equipment layout and personnel access. The folding ladder employs a folding design, abutting against the lower deck in its unfolded state to form a stable vertical passage, meeting the need for access from the lower cabin to the upper deck. The shipborne storage system is equipped with a drive mechanism including a first drive component and a second drive component. The first drive component folds or unfolds the folding ladder, and the second drive component closes or opens the hatch, achieving automated operation of the shipborne storage system and improving ease of use and safety. This concealed marine folding ladder storage system has advantages such as compact structure, convenient operation, and reliable safety, and is suitable for constructing temporary passages between the upper and lower decks of various types of ships. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the shipborne storage system of a concealed marine folding ladder in the stored state according to an embodiment of this application. Figure 2 This is a schematic diagram of the unfolded state of the shipborne storage system of a concealed marine folding ladder according to an embodiment of this application. Figure 3 This is an embodiment of the present application. Figure 1 Enlarged view of point A in the middle; Figure 4 This is an embodiment of the present application. Figure 1 Enlarged diagram of point B in the middle.

[0014] Captions: 1. Lower deck; 2. Ceiling; 3. Upper deck; 4. Folding ladder; 41. Ground support; 51. Storage compartment; 52. Cofferdam; 53. Movable panel; 54. Hatch cover; 61. First hydraulic rod; 62. Second hydraulic rod; 71. Sealing strip; 72. Sealing platform; 73. Waterproof groove; 81. First male buckle; 82. First female buckle; 83. First motor; 841. First shaft; 842. Rotating ring; 91. Second male buckle; 92. Second female buckle; 93. Second motor; 941. Second shaft; 942. First handle; 943. Second handle. Detailed Implementation

[0015] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0016] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0017] It should be understood that the use of terms such as "first," "second," and "third" to define components in this application is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0018] In specific scenarios, such as access from the upper deck to the top deck for maintenance and repair of critical equipment such as antennas and radar, the area below the top deck is usually the bridge. The bridge is the ship's command center and is mainly used to house the precision instruments needed to control the ship's navigation and the workbench of the navigation personnel. Space is very limited, so it is difficult to install a permanent folding ladder for passage in the bridge.

[0019] To address the aforementioned problems, embodiments of this application provide a concealed marine folding ladder onboard storage system, such as... Figure 1-4 As shown, including a lower deck 1, a ceiling 2, and an upper deck 3, the shipboard storage system for the concealed marine folding ladder also includes: Folding ladder 4, which abuts against the lower deck when unfolded; A ship ladder storage device, the ship ladder storage device includes a storage compartment 51 for accommodating the folded ladder 4 in a folded state, the storage compartment 51 is located between the ceiling 3 and the upper deck 4, and the storage compartment 51 is formed by a surrounding panel 52. The bottom of the storage compartment 51 is provided with a movable plate 53 that is movably connected to the ceiling 2, and one end of the folding ladder 4 is fixed to the inner surface of the movable plate 53. The top of the storage compartment 51 is provided with a hatch 54 that is movably connected to the upper deck 3; The ship ladder storage device also includes a drive mechanism, which includes a first drive component and a second drive component 62. The first driving component connects the movable plate 53 and the folding ladder 4, and is used to fold or unfold the folding ladder 4. The second drive unit 62 connects the storage compartment 51 and the cover 54, and is used to close or open the cover 54.

[0020] This embodiment of the application efficiently constructs a connecting passage between the lower deck 1 and the upper deck 3 for temporary passage or emergency use by installing a concealed folding ladder and a matching ladder storage device in the interlayer space between the upper deck 3 and the ceiling 2. Specifically, when passage is needed, the operator can open the movable plate 53 installed on the ceiling 2 at the lower deck 1, and then smoothly unfold the folding ladder 4, which is folded and connected to the movable plate 53, through the first drive component, so that the bottom of the folding ladder 4 abuts against the surface of the lower deck 1, while the upper end of the folding ladder 4 continues to maintain its connection with the storage compartment 51 located between the ceiling 2 and the upper deck 3; then, the hatch cover 54, which is movably connected to the upper deck 3, is lifted and opened by the second drive component 62, so that the space between the storage compartment 51 and the upper deck 3 is completely connected, ultimately forming a temporary passage from the lower deck 1 to the upper deck 3.

[0021] When the ladder needs to be recycled after use, the second drive unit 62 first drives the hatch 54 to close, restoring the flatness and seal of the upper deck 3 surface. Then, the first drive unit drives the folding ladder 4 to fold and retract, so that the overall structure of the folding ladder 4 is completely folded up to not exceed the boundary of the movable plate 53. Finally, the movable plate 53 is pushed back and closed, making it flush with the surrounding ceiling 2. At this time, the folding ladder 4 is completely folded and stored in the storage compartment 51. The shipborne storage system of the concealed marine folding ladder provided by this invention can realize that the folding ladder 4 can be completely hidden in the hull in the non-folded state, without permanently occupying the working space of the lower deck 1 and the upper deck 3. This ensures both the integrity of the normal working area and the rapid and reliable passage function in emergencies.

[0022] Furthermore, the first driving member includes a first hydraulic rod 61; One end of the first hydraulic rod 61 is connected to the movable plate 53, and the other end is connected to the folding ladder 4.

[0023] Specifically, one end of the first hydraulic rod 61 is hinged to the movable plate 53 for rotational connection, and the other end is hinged to the folding ladder 4 for rotational connection, forming a stable rotating joint connection structure. In actual use, when the folding ladder 4 needs to be unfolded, it can be pushed open by the first hydraulic rod 61; conversely, when the folding ladder 4 needs to be returned from the unfolded state to the folded storage state, it can be pulled open by the first hydraulic rod 61. It should be noted that the first hydraulic rod 61 is arranged between the movable plate 53 and the folding ladder 4, which will not affect passage. At the same time, the setting of the first hydraulic rod 61 does not restrict the free movement of the folding ladder 4 under the action of external force. Even in the case of non-hydraulic drive, the folding ladder 4 can still be unfolded or folded directly by manually applying external force, improving safety redundancy.

[0024] Furthermore, the second drive component 62 includes a first hydraulic rod 62, one end of which is connected to the hatch 54 and the other end of which is connected to the upper deck 3.

[0025] Specifically, one end of the first hydraulic rod 62 is hinged to the hatch cover 54, and the other end is hinged to the upper deck 3, forming a stable and flexible support structure. When the hatch cover 54 needs to be opened, it can be rotated outward by pushing it open using the first hydraulic rod 62. Conversely, when the hatch cover 54 needs to be closed, the first hydraulic rod 62 retracts, pulling the hatch cover 54 inward to close it. It is worth noting that the first hydraulic rod 62 does not restrict the free movement of the hatch cover 54 under external force. That is, when necessary, external force can be applied manually to directly push or pull the hatch cover to complete the opening and closing action, improving safety redundancy. In addition, in some practical application scenarios, the first hydraulic rod 62 can also be a self-locking hydraulic rod, which can support mechanical locking at any position during the extension process, thereby allowing the hatch cover 54 to remain at multiple intermediate angles during the opening process, to meet the actual needs of adjustable opening and closing degree and state maintenance of the hatch cover 54 under different operating conditions.

[0026] To prevent the first hydraulic rod 62 from affecting personnel passage, a set of first hydraulic rods 62 can be installed on each side of the hatch cover 54 hinged to the upper deck 3, so that the hatch cover 54 can be opened from both sides, leaving a passage area in the middle.

[0027] Furthermore, a ground support 41 is provided at one end of the folding ladder 4 away from the movable plate 53, and an anti-slip pad 42 is provided at the bottom of the ground support 41.

[0028] Specifically, the function of the ground support 41 is to ensure that the folding ladder 4 can be stably supported on the lower deck 1 after it is fully unfolded, thereby providing a reliable connection structure for people to go up and down. The anti-slip mat 42 is installed at the bottom of the ground support 41. Its design purpose is to significantly increase the friction between the ground support 41 and the contact surface of the lower deck 1, effectively preventing accidental slippage caused by wet surfaces or vibration.

[0029] Furthermore, a sealing structure is provided between the hatch cover 54 and the upper deck 3, the sealing structure including a sealing strip 71, a sealing platform 72 and a waterproof groove 73; The sealing strip 71 is arranged around the edge of the hatch cover 54, and the sealing strip 71 protrudes outward. The sealing strip 71 includes an inner foam strip and an outer solid strip. The sealing platform 72 is disposed on the upper deck 3, and the sealing platform 72 is provided with a groove; The waterproof channel 73 is provided on the upper deck 3, located below the connection between the hatch cover 54 and the upper deck 3. The bottom of the waterproof channel 73 is provided with an inclined slope and a drain outlet.

[0030] Specifically, the sealing strip 71 adopts a composite structure of an inner foamed rubber strip and an outer solid rubber strip. The foamed rubber strip has a high compression ratio, which allows for a larger contact area between the sealing strip 71 and the sealing platform 72. The outer solid rubber strip has a dense structure and is resistant to seawater corrosion. This dual-layer material combination allows it to fully adapt to the minor deformations caused by temperature changes or mechanical vibrations between the hatch cover 54 and the bulkhead 52, thus maintaining a reliable seal under dynamic operating conditions and effectively preventing the penetration of water vapor or liquid. The groove structure on the sealing platform 72 matches the shape of the sealing strip 71. When the hatch cover 54 is closed, the sealing strip 71 is pressed into and fitted into the groove structure on the sealing platform 72, further improving the sealing effect. In addition, the waterproof channel 73 is used to collect and divert trace amounts of water that may intrude through the joint between the hatch 54 and the bulkhead 52. The bottom of the waterproof channel 73 is a sloping surface, and it is combined with a drain outlet at the end. The drain outlet can be connected to the hull's drainage system to quickly guide and discharge accumulated water, avoiding liquid retention that could lead to a decrease in sealing performance or corrosion of components.

[0031] Furthermore, one side of the movable plate 53 is hinged to the ceiling 2, and the first latch is provided between the movable plate 53 and the ceiling 2; The first latch includes a first male latch 81, a first female latch 82, and a first motor 83; The first female buckle 82 is disposed on the ceiling, the first male buckle 81 is disposed on the movable plate, and the first motor 83 is connected to the first male buckle 81 to drive the first male buckle 81 to engage with or disengage from the first female buckle 82.

[0032] To ensure that the movable plate 53 remains stable on the ceiling 2 when not in use, this embodiment of the application provides a first latch. When the movable plate 53 needs to be opened, the first motor 83 drives the first male latch 81 to rotate 90° to the left or right, thereby disengaging the first male latch 81 from the first female latch 82 and releasing the locking state. At this time, the movable plate 53 can rotate downward around the hinge axis between it and the ceiling 2 to open, facilitating personnel passage. When the movable plate 53 needs to be closed and locked, the first motor 83 will drive in the opposite direction, causing the first male latch 81 to rotate 90°, so that the first male latch 81 is locked back into the first female latch 82, thereby firmly fixing the movable plate 53 to the ceiling 2. This effectively prevents accidental opening due to turbulence, tilting, or vibration during ship operation, improving the safety and reliability of the equipment.

[0033] Specifically, the first latch can preferably be positioned on the opposite side of the hinge point between the movable plate 53 and the ceiling 2. This arrangement fully utilizes the lever principle to provide uniform and stable support for the movable plate 53, while maintaining a simple overall structure for easy installation and maintenance. If the folding ladder 4 and the movable plate 53 used in the actual application are heavy, or if they bear a large load during use, multiple auxiliary latch structures can be added to the other sides of the movable plate 53. Multi-point locking significantly enhances the overall connection's strength, further improving its vibration and impact resistance under complex working conditions, ensuring the movable plate remains in a stable closed state.

[0034] Furthermore, the first latch is provided with a first emergency unlocking component, which includes a first rotating shaft 841 and a rotating ring 842. One end of the first rotating shaft 841 is connected to the first male latch 81, and the other end of the first rotating shaft 841 passes through the movable plate 53 and is connected to the rotating ring 842.

[0035] To enhance safety redundancy, if the first motor 83 fails to drive the first male buckle 81 to disengage from the first female buckle 82 due to a sudden malfunction in an emergency, the operator can manually rotate the rotating ring 842. The rotating ring 842 drives the first rotating shaft 841 to rotate, thereby transmitting torque to disengage the first male buckle 81 from the first female buckle 82, ultimately enabling the emergency opening of the movable plate 53. Conversely, the movable plate 53 can also be locked to the ceiling 2 by manually rotating the rotating ring 842.

[0036] Furthermore, one side of the hatch 51 is hinged to the upper deck 3, and a second latch is provided between the hatch 51 and the upper deck 3; The second latch includes a second male latch 91, a second female latch 92, and a second motor 93; The second female buckle 92 is disposed on the upper deck 3, the second male buckle 91 is disposed on the hatch cover 54, and the second motor 93 is connected to the second male buckle 91 to drive the second male buckle 91 to engage with or disengage from the second female buckle 92.

[0037] To ensure a stable connection between the hatch cover 54 and the upper deck 3 when not in use, a second locking structure is provided in this embodiment. When the hatch cover 54 needs to be opened, the second motor 93 drives the second male latch 91 to rotate 90° to the left or right, disengaging the second male latch 91 from the engagement with the second female latch 92, thereby opening the hatch cover 54. When the hatch cover 54 needs to be closed, the second motor 93 drives the second male latch 91 to rotate 90° in the opposite direction, causing the second male latch 91 to re-engage with the second female latch 92, thus locking the hatch cover 54. Specifically, the first locking mechanism can preferably be located on the opposite side of the hinged position between the movable plate 53 and the ceiling 2, resulting in a simpler overall structure that is easy to install and maintain.

[0038] Furthermore, the second latch is provided with a second emergency unlocking component, which includes a second pivot 941, a first handle 942 and a second handle 943. One end 941 of the second pivot is connected to the second male latch 91 and the first handle 942, and the other end of the pivot passes through the hatch and is connected to the second handle 943.

[0039] To enhance safety redundancy, in case of an emergency, if the second motor 93 malfunctions and cannot function properly, the operator can manually turn the first handle 942. The first handle 942 drives the second rotating shaft 941 to rotate, thereby separating the second male latch 91 from the second female latch 92, enabling the hatch 54 to open in an emergency. This ensures that personnel can use the folding ladder for passage in an emergency. Similarly, when the hatch 54 is closed, the operator can also turn the second handle 943 from the outside to separate the second male latch 91 from the second female latch 92, preventing the hatch 54 from accidentally closing and becoming unopenable when personnel are working on the top deck.

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the 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 concealed marine folding ladder storage system, comprising a lower deck, a ceiling, and an upper deck, characterized in that, The shipboard storage system for the concealed marine folding ladder also includes: A folding ladder, which abuts against the lower deck when unfolded; A ship ladder storage device, comprising a storage compartment for accommodating the folded ladder in a folded state, the storage compartment being located between the ceiling and the upper deck, and the storage compartment being enclosed by a panel; The bottom of the storage compartment is provided with a movable plate that is movably connected to the ceiling, and one end of the folding ladder is fixed to the inner surface of the movable plate; The top of the storage compartment is equipped with a hatch that is movably connected to the upper deck; The ship ladder storage device also includes a drive mechanism, which includes a first drive component and a second drive component. The first driving component connects the movable plate and the folding ladder, and is used to fold or unfold the folding ladder; The second drive unit connects the storage compartment and the hatch, and is used to close or open the hatch.

2. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, The first driving component includes a first hydraulic rod; One end of the first hydraulic rod is connected to the movable plate, and the other end is connected to the folding ladder.

3. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, The second drive component includes a second hydraulic rod, one end of which is connected to the hatch cover and the other end of which is connected to the upper deck.

4. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, The folding ladder is provided with a ground support at one end away from the movable board, and the bottom of the ground support is provided with an anti-slip mat.

5. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, A sealing structure is provided between the hatch cover and the upper deck, and the sealing structure includes a sealing strip, a sealing platform and a waterproof groove; The sealing strip is arranged around the edge of the hatch cover, and the sealing strip protrudes outward. The sealing strip includes an inner foam strip and an outer solid strip. The sealing platform is disposed on the upper deck, and the sealing platform is provided with a groove; The waterproof channel is installed on the upper deck, located below the connection between the hatch cover and the upper deck. The bottom of the waterproof channel has an inclined slope and a drain outlet.

6. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, One side of the movable panel is hinged to the ceiling, and a first latch is provided between the movable panel and the ceiling; The first latch includes a first male latch, a first female latch, and a first motor; The first female buckle is disposed on the ceiling, the first male buckle is disposed on the movable plate, and the first motor is connected to the first male buckle to drive the first male buckle to engage with or disengage from the first female buckle.

7. The shipboard storage system for the concealed marine folding ladder according to claim 6, characterized in that, The first latch is provided with a first emergency unlocking component, which includes a first rotating shaft and a rotating ring. One end of the first rotating shaft is connected to the first male latch, and the other end of the first rotating shaft passes through the movable plate and is connected to the rotating ring.

8. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, One side of the hatch is hinged to the upper deck, and a second latch is provided between the hatch and the upper deck; The second latch includes a second male latch, a second female latch, and a second motor; The second female buckle is located on the upper deck, the second male buckle is located on the hatch cover, and the second motor is connected to the second male buckle to drive the second male buckle to engage with or disengage from the second female buckle.

9. The shipboard storage system for the concealed marine folding ladder according to claim 1, characterized in that, The second locking structure is provided with a second emergency unlocking component, which includes a second pivot, a first handle and a second handle. One end of the second pivot is connected to the second male latch and the first handle, and the other end of the pivot passes through the hatch and is connected to the second handle.

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