Ship boarding and leaving protection device
The ship-to-shore protection system addresses the issues of loose restraints and delayed braking in maritime transfers by using intelligent monitoring and rapid braking, ensuring secure and reliable ship-to-shore operations.
Patent Information
- Application Number
- CN202510677690.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2025-07-15
AI Technical Summary
The traditional method of boarding and leaving the ship lacks dynamic constraints, lagging braking response, poor environmental adaptability, resulting in a high risk of falling from offshore workers.
The drive motor and monitoring structure are used to adjust the tightness of the safety rope in real time, combined with the solenoid control circuit to achieve rapid self-locking braking, integrated sensors for intelligent monitoring and automated control, and the shell uses anti-rust materials to adapt to the marine environment.
It realizes flexible constraints and rapid braking, reduces the risk of falling, and improves the safety and reliability of the boarding and leaving the ship.
Smart Images

Figure CN120308280A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ship protection devices, and particularly to a boarding and disembarking protection device. Background Art
[0002] In maritime operations, the boarding and disembarking process of pilots is recognized as a high-risk scenario. Traditional boarding and disembarking methods rely on equipment such as Jacob's ladders and accommodation ladders. Affected by factors such as sea conditions and ship sway, personnel are prone to fall due to imbalance or equipment failure. According to statistics by the International Maritime Organization (IMO), the casualty rate caused by pilot boarding and disembarking falls globally every year is several times that of ordinary industries, and existing protection measures are mostly passive safety belts, lacking real-time dynamic restraint and emergency braking capabilities. Current technical pain points include:
[0003] 1) Lack of dynamic restraint: Traditional safety ropes cannot automatically adjust the tightness according to the movement of personnel, and are prone to insufficient fall buffer distance due to slack.
[0004] 2) Delayed braking response: Existing braking devices rely on manual triggering or mechanical inertia and are difficult to lock within the instant of falling (within 0.1 - 0.3 seconds).
[0005] 3) Poor environmental adaptability: The high-humidity and salt spray environment at sea easily cause mechanical components to rust and fail, resulting in insufficient reliability.
[0006] Therefore, it is of great practical significance to develop a boarding and disembarking protection device with flexible following, intelligent monitoring, and rapid braking functions. Summary of the Invention
[0007] In view of this, the purpose of the present invention is to provide a boarding and disembarking protection device that can flexibly restrain the user when boarding and disembarking, and in the event of the user falling, keep the user at a sufficient height so as not to fall, thereby enhancing the safety of the user. The specific solution is as follows:
[0008] A boarding and disembarking protection device includes a connection member and a protection member. The connection member is connected to the protection member and is used to be bound to the user to achieve flexible restraint of the user. The protection member is used to keep the connection member in a taut state when in the boarding state, and in the event of the user falling, perform self-locking braking to keep the user at a sufficient height through the connection member.
[0009] In one embodiment, the protection member includes a driving structure, a monitoring structure, and a braking structure. The connection member is connected to the driving structure. The monitoring structure is assembled on the driving structure and the braking structure and is used to obtain the state data of the driving structure and the braking structure. The braking structure is assembled on one side of the driving structure and is used to process the driving structure according to the state data.
[0010] In one embodiment, the driving structure includes a housing, a driving motor, a driving gear set, a pedestal bearing, and a spool. The driving motor, the driving gear set, and the pedestal bearing are all located inside the housing. The spool is assembled on the pedestal bearing. The driving motor drives the spool to rotate through the driving gear set. The connecting member is wound and fixed to the spool. The braking structure is located inside the housing, and the braking structure is connected to the spool. The monitoring structure is respectively assembled at the position of the spool and the position of the braking structure.
[0011] In one embodiment, the braking structure includes a brake disc, a brake locking member, and a reset member. The brake disc is assembled on the spool. The brake locking member is used to lock and brake the brake disc. The reset member is connected to the brake locking member and is used to reset the brake locking member when the locked and braked state is released.
[0012] In one embodiment, the brake locking member includes at least two brake blocks, a guide seat, and an electromagnet control circuit. The guide seat is assembled inside the housing. The brake blocks are movably assembled on the guide seat and are located on both sides corresponding to the brake disc. The electromagnet control circuit is electrically connected to the brake blocks and is used to endow the brake blocks with different magnetic properties so that the brake blocks move on the guide seat and approach each other to lock the brake disc. The reset member is connected to the brake blocks.
[0013] In one embodiment, the reset member includes a guide rod, a spring, and an assembly seat. The assembly seat is assembled inside the housing. The guide rod is movably assembled on the assembly seat, and the guide rod is connected to the brake blocks. The spring is sleeved on the guide rod, and the spring connects the guide rod and the assembly seat.
[0014] In one embodiment, the connecting member includes a safety rope and a quick release buckle. The safety rope is wound and connected to the spool. The quick release buckle is assembled on the safety rope, and the quick release buckle is located outside the housing.
[0015] The advantages of the present invention are summarized as follows:
[0016] 1. Dynamic flexible constraint: The driving motor and the monitoring structure (torque sensor, speed sensor) are used to adjust the tightness of the safety rope in real time, ensuring that the user remains moderately tight when moving, and solving the problem of insufficient buffer distance caused by the slack of the traditional safety rope.
[0017] 2. Quick self-locking braking: The braking structure adopts an electromagnet control circuit and a wedge-shaped brake block design, which can trigger the locking of the brake disc within 0.1 - 0.3 seconds at the moment of falling, with a fast response speed and effectively limiting the falling distance.
[0018] 3. Intelligent Monitoring and Automatic Control: Integrate sensors to collect real-time status data (such as torque and rotational speed) of the driving structure and braking structure, and automatically trigger rope retraction / extension or emergency braking through preset thresholds to reduce the need for human intervention.
[0019] 4. Environmental Adaptability Optimization: The outer shell is made of rust-proof materials and has a sealed design, and internal components (such as electromagnets and guide seats) are resistant to salt spray corrosion, improving the reliability of the device in high-humidity and high-salt marine environments.
[0020] 5. Compact Integrated Structure: The driving motor, gear set, spool, and braking components are all integrated within the outer shell, with a small volume, making it convenient to be fixed to the deck railing through shackles or welding, with flexible installation and space savings.
[0021] 6. Multiple Safety Assurance Mechanisms: In addition to automatic braking, a manual emergency braking button and a quick release buckle are added to support human intervention in emergency situations, achieving dual protection.
[0022] 7. Convenient Reset: The braking locking part is automatically reset through a spring and a guide rod, and the device can return to the standby state without complex operations after braking is released, with low maintenance costs. Description of the Drawings
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can also be obtained based on these drawings without creative efforts.
[0024] Figure 1 It is an internal sectional view of the boarding and disembarking protection device.
[0025] Figure 2 It is a top view of the boarding and disembarking protection device.
[0026] Figure 3 It is a left view of the boarding and disembarking protection device.
[0027] Figure 4 It is a right view of the boarding and disembarking protection device.
[0028] Figure 5 It is a three-dimensional structure schematic diagram of the boarding and disembarking protection device.
[0029] Figure 6 It is an external structure schematic diagram of the boarding and disembarking protection device. Detailed Embodiments
[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the description of the present invention without creative efforts shall fall within the scope of protection of the present invention.
[0031] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0032] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0033] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.
[0034] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.
[0035] Please refer to Figure 1 and Figure 6 , the boarding and disembarking protection device provided by the present invention includes a connecting member 2 and a protection member. The connecting member 2 is connected to the protection member and is used for binding connection with the user to achieve flexible restraint of the user. The protection member is used to keep the connecting member in a taut state when in the boarding state, and when the user falls, it performs self-locking braking to keep the user at a sufficient height through the connecting member 2.
[0036] It can be known that when boarding or disembarking, the user can wear corresponding clothing with corresponding hanging rings provided thereon. When in use, the device is fixed to the hull, which can be on the deck of the ship. It can be fixed to the railing of the deck through a shackle. Of course, the welding method can also be selected to connect and fix the connecting member 2 to the hanging ring on the clothing. When boarding or disembarking, the protection member can keep the connecting member 2 in a taut state. In the event of a fall, the user will cause the connecting member 2 to rapidly pay out the rope. The connecting member 2 will change the state of the protection member. When the state of the protection member changes, it will brake itself to change the rapid rope-paying-out state of the connecting member 2, and even cause the situation where the rope-paying-out stops.
[0037] Please refer to Figures 1 to 5 , in some embodiments, the protection member includes a driving structure 3, a monitoring structure, and a braking structure 5. The connecting member 2 is connected to the driving structure 3. The monitoring structure is assembled on the driving structure 3 and the braking structure 5 for obtaining the state data of the driving structure 3 and the braking structure 5. The braking structure 5 is assembled on one side of the driving structure 3 for processing the driving structure 3 according to the state data.
[0038] It can be understood that the driving structure 3 can drive the connecting member 2 to act to realize the operations of taking in and paying out the rope. The monitoring structure includes a torque sensor and a speed sensor. The torque sensor can monitor the torque of the driving structure 3, and the speed sensor can monitor the rotational speed of the braking structure 5. The torque change and the rotational speed change are positively correlated. When the situation of rapid rope-paying-out occurs, the load of the driving structure 3 will increase. Therefore, the torque of the driving structure 3 will suddenly increase correspondingly. The driving structure 3 will adjust the connecting member 2 according to the data of the torque sensor to ensure that the driving structure 3 is within the preset first torque threshold range, so that the connecting member 2 is in a taut state. At the same time, the braking structure 5 will rapidly increase in rotational speed. Therefore, when the data of the two are abnormal, the braking structure 5 is triggered to work to brake the driving structure 3, thus avoiding the occurrence of a fall situation.
[0039] Please refer to Figure 3 , in some embodiments, the driving structure 3 includes a housing 1, a driving motor 31, a driving gear set, a pedestal bearing 36, and a spool 35. The driving motor 31, the driving gear set, and the pedestal bearing 36 are all located inside the housing 1. The spool 36 is assembled in the pedestal bearing 36. The driving motor 31 drives the spool 35 to rotate through the driving gear set. The connecting member 2 is wound and fixed to the spool 35. The braking structure 5 is located inside the housing 1, and the braking structure 5 is connected to the spool 36. The monitoring structure is respectively assembled at the position of the spool 36 and the position of the braking structure 5.
[0040] It can be known that the outer shell 1 can include a housing and a base 32. The housing and the base 32 can be an integral structure. The base 32 can be fixed on the railing of the deck, and the fixing method can be through shackles. The driving motor 31, the driving gear set, and the pedestal bearing 36 are all located inside the housing. The driving gear set can include a driving gear 33 and a driven gear 34. The output shaft of the driving motor 31 is connected to the driving gear 33 through a coupling. The driving gear 33 meshes with the driven gear 34. The driven gear 34 is assembled on the spool 36, thereby driving the spool 35 to rotate. The spool 35 can be arranged inside the inner ring of the pedestal bearing 36, so as to realize the tightening and rope releasing of the connecting member 2. When boarding or leaving the ship, when it is monitored that the torque is greater than the set second torque threshold, the rope will start to be released at the preset rope releasing speed until the second torque threshold is satisfied. When it is less than the set second torque threshold, the winding will start to meet the second torque threshold. The driving structure 3 of this structure is simple.
[0041] Please refer to Figure 1 、 Figure 2 and Figure 5 , in some embodiments, the braking structure 5 includes a brake disc 51, a braking locking member, and a reset member. The brake disc 51 is assembled on the spool 36. The braking locking member is used to lock and brake the brake disc 51. The reset member is connected to the braking locking member and is used to reset the braking locking member when the locking and braking state is released.
[0042] It can be understood that the braking structure can include a controller. When the data of the torque sensor and the speed sensor of the monitoring structure are abnormal, the controller controls the braking locking member to work. The braking locking member locks the brake disc 51, thereby realizing the braking of the driving structure 5. When the above problems are solved, the controller releases the working state of the braking locking member, and the reset member restores the braking locking member to the original position through its own elastic force. The structure is simple and the operation is convenient.
[0043] Please refer to Figures 1 to 5 , in some embodiments, the braking locking member includes at least two brake blocks 56, a guide seat 52, and an electromagnet control circuit 53. The guide seat 52 is assembled inside the outer shell 1. The brake blocks 56 are movably assembled on the guide seat 52 and are located on both sides corresponding to the brake disc 51. The electromagnet control circuit 53 is electrically connected to the brake blocks 56 and is used to endow the brake blocks 56 with different magnetic properties, so that the brake blocks 56 move on the guide seat and approach each other to lock the brake disc 51. The reset member is connected to the brake blocks 56.
[0044] It can be understood that the brake block 56 can be made of an electromagnet, which can be in a wedge shape. Two brake blocks 56 are symmetrically arranged on both sides of the brake disc 51. A guide groove can be provided on the guide seat 52, and the brake block 56 can move along the guide groove to improve the stability of braking. The electromagnet control circuit 53 can be a common electromagnetic control single circuit, which gives different magnetic properties to the brake disc 51 respectively, so that the two brake blocks 56 are attracted and close to each other under the action of magnetism to lock the brake disc 51. This brake locking member has a simple structure and can well realize the locking of the working state of the driving structure 3.
[0045] Please continue to refer to Figure 1 , in some embodiments, the reset member includes a guide rod 54, a spring 55 and an assembly seat. The assembly seat is assembled in the housing 1. The guide rod 54 is movably assembled on the assembly seat, and the guide rod 54 is connected to the brake block 56. The spring 55 is sleeved on the guide rod 54, and the spring 55 connects the guide rod 54 and the assembly seat.
[0046] It can be known that an activity hole can be provided on the assembly seat, and the guide rod is movably arranged in the activity hole of the assembly seat. Under the elastic force of the spring 55, the brake block 56 is reset through the guide rod 54, so as to realize the unlocking state. The operation of unlocking the locking state can be manually operated.
[0047] Please refer to Figure 4 , in some embodiments, the connecting member 2 includes a safety rope and a quick release buckle. The safety rope is wound and connected to the spool 35, and the quick release buckle is assembled on the safety rope and is located outside the housing 1.
[0048] It can be understood that an opening for the safety rope to pass through can be provided on the housing. The quick release buckle can be a common lock structure, and it can be connected to the safety rope in a tied manner. This connecting member 2 has a simple structure and low cost.
[0049] Please refer to Figure 6 , in some embodiments, an emergency brake button 4, a reset button 6, a start switch 7, a rope release button 8, a work light module 9 and a power switch 10 can also be provided on the outer surface of the housing. The start switch 7 is used to start the device. The emergency brake button 4 can manually control the brake locking member. The reset button 6 can make the brake locking member stop working. The work light module 9 can display the working state of the device according to the light color. The power switch 10 can supply power to the device. A power supply can also be provided in the housing 1 to supply power to the drive motor 31 and the brake locking member of the device.
[0050] The boarding and disembarking protection device provided by the present invention systematically solves the core pain points of traditional boarding and disembarking protection devices, such as dynamic constraint lag, slow braking response, and insufficient reliability in the marine environment, through dynamic flexible constraint, intelligent monitoring and control, rapid self-locking braking, and high environmental adaptability design. When a user boards or disembarks a ship, the present invention can flexibly constrain the user, and in the event of the user falling, keep the user at a sufficient height so as not to fall, improving the safety of the user. The present invention promotes the upgrade of boarding and disembarking protection technology from "passive protection" to "active intelligent protection", and has important practical significance for reducing the casualty rate of global maritime operations and ensuring the safety of seafarers' lives.
[0051] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims
1. A boarding and disembarking protection device, characterized in that, It includes a connecting member and a protection member. The connecting member is connected to the protection member and is used to be bound to the user to achieve flexible restraint on the user. The protection member is used to keep the connecting member in a taut state when in the boarding state, and when the user falls, it performs self-locking braking so that the user can maintain a sufficient height through the connecting member.
2. The boarding and disembarking protection device according to claim 1, characterized in that, The protection member includes a driving structure, a monitoring structure, and a braking structure. The connecting member is connected to the driving structure. The monitoring structure is assembled on the driving structure and the braking structure and is used to obtain the state data of the driving structure and the braking structure. The braking structure is assembled on one side of the driving structure and is used to process the driving structure according to the state data.
3. The boarding and disembarking protection device according to claim 2, characterized in that, The driving structure includes a housing, a driving motor, a driving gear set, a pedestal bearing, and a spool. The driving motor, the driving gear set, and the pedestal bearing are all located inside the housing. The spool is assembled on the pedestal bearing. The driving motor drives the spool to rotate through the driving gear set. The connecting member is wound and fixed to the spool. The braking structure is located inside the housing and is connected to the spool. The monitoring structure is respectively assembled at the position of the spool and the position of the braking structure.
4. The boarding and disembarking protection device according to claim 3, characterized in that, The braking structure includes a brake disc, a brake locking member, and a reset member. The brake disc is assembled on the spool. The brake locking member is used to lock and brake the brake disc. The reset member is connected to the brake locking member and is used to reset the brake locking member when the locked and braked state is released.
5. The boarding and disembarking protection device according to claim 4, characterized in that, The brake locking member includes at least two brake blocks, a guide seat, and an electromagnet control circuit. The guide seat is assembled inside the housing. The brake blocks are movably assembled on the guide seat and are located on both sides corresponding to the brake disc. The electromagnet control circuit is electrically connected to the brake blocks and is used to endow the brake blocks with different magnetic properties so that the brake blocks move on the guide seat and approach each other to lock the brake disc. The reset member is connected to the brake blocks.
6. The boarding and disembarking protection device according to claim 5, wherein, The reset member includes a guide rod, a spring, and an assembly seat. The assembly seat is assembled inside the housing. The guide rod is movably assembled on the assembly seat and is connected to the brake blocks. The spring is sleeved on the guide rod and connects the guide rod and the assembly seat.
7. The boarding and disembarking protection device according to claim 3, wherein The connecting member includes a safety rope and a quick release buckle. The safety rope is wound and connected to the spool. The quick release buckle is assembled on the safety rope, and the shackle is located outside the housing.