Ship pilot rope ladder and winch arrangement method
By setting up winches and soft ladders on the ligated bridge platform of the container ship, and using chain transmission or belt transmission systems, the problem of small space on the side of the container ship's main deck is solved, and the effective layout of soft ladders and winches and the saving of deck space is achieved.
Patent Information
- Application Number
- CN202510474640.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2025-05-27
AI Technical Summary
On container ships, especially branch box ships, the main deck side space is small, which makes it difficult for the water diversion stairs and winches to meet the requirement that the main deck pass space within the load line convention is not less than 600mm.
A winch is installed on the tying bridge platform and connected to the chain transmission or belt transmission system through a motor. One end of the ladder is connected to the suspension cable. The one end of the suspension cable is connected to the winch, so that the winch can wind or release the ladder and suspension cable.
By laying the winch and soft ladder on the tidy bridge platform, the space is rationally utilized, the overall installation size is reduced, and the installation requirements of the water diversion officer's soft ladder and winch are met, while saving deck space and meeting the width requirements of the main deck passage.
Smart Images

Figure CN120039358A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of shipbuilding, and particularly to a method for arranging a pilot ladder and a winch on a ship. Background Art
[0002] Generally, a device is provided on a ship to enable a pilot to board and leave the ship safely from either side of the ship. When a ship enters or leaves a port, the port will arrange a pilot familiar with the characteristics of the port waters to pilot the incoming ship. After receiving the pilotage task, the pilot will first take a tender to approach the ship to be piloted, board the ship through the embarkation and disembarkation device, and assist the captain in entering and leaving the port and berthing at the dock. This embarkation and disembarkation device is usually a pilot ladder or a combined pilot ladder device.
[0003] The pilot ladder should be arranged as far as possible within the midship half-length range and avoid all outer plate discharge openings. When the pilot needs to board or leave the ship, the crew will lower and place the pilot ladder in a suitable position in advance according to the ship's draft device for the pilot to use safely. When the ship is sailing normally, the ladder is usually stored on the winches on both sides of the ship. When the pilot ladder is stored, it will occupy a certain storage space. For container ships, especially feeder container ships, the space on the side of the main deck is narrow, and the arrangement of the pilot ladder and the winch usually makes it difficult to meet the requirement in the Load Line Convention that the passage space on the main deck is not less than 600 mm. Summary of the Invention
[0004] In view of the above-mentioned disadvantages of the related art, the purpose of the present invention is to provide a method for arranging a pilot ladder and a winch on a ship to solve the above problems.
[0005] To achieve the above purpose and other related purposes, the present invention provides a method for arranging a pilot ladder and a winch on a container ship equipped with a cranes, the method comprising: setting a winch on the lashing bridge platform; setting an electric motor on one side of the winch and driving the winch by chain drive or belt drive; connecting one end of the ladder to a suspension cable, and connecting the end of the suspension cable far from the ladder to the winch, so that the winch winds or unwinds the ladder and the suspension cable.
[0006] Optionally, the method further comprises: setting a guide slide on the side of the lashing bridge platform, and setting the height of the guide slide based on the state of the ladder being retracted or deployed.
[0007] Optionally, the method further comprises: setting a guide slide on the side of the lashing bridge platform, and setting the height of the guide slide based on the state of the ladder being retracted or deployed.
[0008] Optionally, the method further comprises: setting the position where the side plate of the support column contacts the ladder to be arc-shaped.
[0009] Optionally, the method further includes: arranging an anti-abrasion structure at the outer plate of the deck side, where the anti-abrasion structure is located below the guide carriage, and setting the top surface of the anti-abrasion mechanism to be arc-shaped.
[0010] Optionally, the method further includes: arranging eyebolts on the deck, and when the accommodation ladder is in the lowered state, connecting and fixing the accommodation ladder and the eyebolts with shackles.
[0011] Optionally, the width dimension of the lashing bridge platform is greater than the overall length dimension of the winch and the motor.
[0012] A ship arranges a winch and an accommodation ladder by using the method for arranging the accommodation ladder and winch of a ship pilot as described above.
[0013] As described above, the method for arranging the accommodation ladder and winch of the present invention has the following beneficial effects: The main function of the lashing bridge is to arrange the knuckle boom crane barrel and carry out lashing and securing operations on the containers. By arranging the winch and the accommodation ladder on the lashing bridge platform, the space of the lashing bridge platform can be reasonably utilized. Through the design of chain drive or belt drive, the overall installation size of the accommodation ladder and the winch can be reduced, which not only meets the installation of the accommodation ladder for the pilot and the winch, but also improves the utilization space of the lashing bridge platform. Installing the accommodation ladder and the winch on the lashing bridge platform enables the accommodation ladder and the winch not to be arranged on the deck, thus saving the layout space of the deck and making it easier to meet the width requirement of the main deck passage. Description of the Drawings
[0014] Figure 1 It shows a schematic diagram of the layout positions of the winch and the accommodation ladder in an embodiment of the present invention.
[0015] Figure 2 It shows a schematic diagram in the case of only using the accommodation ladder in an embodiment of the present invention.
[0016] Figure 3 It shows a schematic diagram in the case of using the accommodation ladder and the suspension cable in an embodiment of the present invention.
[0017] Description of Component Symbols
[0018] 1. Lashing bridge platform; 2. Winch; 3. Motor; 4. Accommodation ladder; 5. Suspension cable; 6. Guide carriage; 7. Support column; 71. Side plate; 8. Anti-abrasion structure; 9. Eyebolt; 10. Accommodation ladder. Detailed Embodiments
[0019] The following uses specific specific examples to illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
[0020] When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention here. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.
[0021] For the convenience of description, spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "on" may be used herein to describe the relationship between one element or feature shown in the drawings and other elements or features. It will be understood that these spatial relationship terms are intended to encompass other directions of the device in use or operation in addition to the directions depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intervening layers. As used herein, "between... and..." means including the endpoint values.
[0022] In the context of the present application, the structure in which the first feature is "above" the second feature as described may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.
[0023] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation may be arbitrarily changed, and the component layout type may also be more complex.
[0024] As Figures 1 to 3 shown, a method for arranging a pilot ladder and a winch for a ship is proposed in this embodiment. This method is applicable to small container ships equipped with a cranes. Usually, the lashing bridge on such ships is large in size and suitable for arranging the winch 2. The method includes:
[0025] Arrange a winch 2 on the lashing bridge platform 1.
[0026] Due to the small deck space of small container ships, when arranging the winch 2 on the deck, the design requirements for the deck passage space cannot usually be met. For some small container ships equipped with a cranes, the lashing bridge platform 1 is relatively large in size, and its width dimension usually reaches 3m. The size of the lashing bridge platform 1 is larger than that of the winch 2. At this time, the winch 2 can be arranged on the lashing bridge platform 1.
[0027] Arrange a motor 3 on one side of the winch 2 and use a chain drive or a belt drive to drive the winch 2 by the motor 3.
[0028] In the traditional method, the motor 3 drives the winch 2 through a speed reducer. Using this transmission method makes the occupied space of the motor 3 and the winch 2 relatively large. After the motor 3 drives the winch 2 through chain drive or belt drive, the occupied space of the winch 2 and the motor 3 can be reduced, which is more conducive to arranging the winch 2 on the lashing bridge platform 1.
[0029] In this embodiment, chain drive is adopted between the motor 3 and the winch 2. A driving sprocket is arranged at the output end of the motor 3, and a driven sprocket is arranged on the winch 2. The driving sprocket and the driven sprocket are connected by a chain.
[0030] One end of the pilot ladder 4 is connected to the suspension cable 5, and then the suspension cable 5 is connected to the winch 2.
[0031] When the winch 2 performs a winding action, the suspension cable 5 is first wound onto the winch 2, and then the pilot ladder 4 is wound onto the winch 2. Due to factors such as navigation safety and environment, the draft state of the ship will change. When the draft depth of the ship is deep, the deck is closer to the water surface. At this time, the winch 2 only needs to lower the pilot ladder 4 to meet the climbing requirements of the pilot; when the draft depth of the ship is shallow, the deck is also higher from the water surface. At this time, the winch 2 needs to lower both the pilot ladder 4 and the suspension cable 5 to increase the length of the pilot ladder 4 so that the pilot ladder 4 can meet the climbing requirements of the pilot.
[0032] A guide slide frame 6 is arranged on the side of the lashing bridge platform 1. The guide slide frame 6 is arranged adjacent to the winch 2. The height of the guide slide frame 6 is determined according to the position after the storage state of the pilot ladder 4 to ensure that the pilot ladder 4 can pass through the guide slide frame 6 normally when being released or recovered and will not be stuck by the lashing bridge.
[0033] Split deck columns are arranged on the side of the deck. The split deck columns include two support columns 7. The two support columns 7 are respectively arranged on both sides of the pilot ladder 4. By setting like this, it is convenient for the pilot to have an appropriate boarding space when climbing from the pilot ladder 4 to the deck for boarding. In this embodiment, the position where the side plate 71 of the support column 7 contacts the pilot ladder 4 is set to be arc-shaped to ensure that the pilot ladder 4 will not be interfered by the support column 7 when being released or recovered.
[0034] An anti-wear structure 8 is arranged at the side outer plate of the deck, and the anti-wear structure 8 is located below the guide slide frame 6. The top surface of the anti-wear structure 8 is set to be arc-shaped to ensure that the pilot ladder 4 will not be interfered by the side outer plate when being released or recovered.
[0035] When the pilot ladder 4 is lowered, in order to fix the pilot ladder 4, an eye plate 9 is arranged on the deck. After the pilot ladder 4 is lowered, the pilot ladder 4 is connected to the eye plate 9 by a shackle. At this time, the pilot can climb the pilot ladder 4.
[0036] The implementation process of using the pilot ladder 4 in this embodiment is as follows: When the pilot ladder 4 is needed, after the crew arrives at the lashing bridge platform 1, they operate the button of the winch 2, and the drum of the winch 2 rotates to drive the pilot ladder 4 to be lowered. When the pilot ladder 4 is lowered, it first passes through the lashing bridge platform 1 smoothly through the guide slide 6, and then is lowered through the deck column.
[0037] Lower the pilot ladder 4 to a position close to the water surface. At this time, according to the different draft conditions of the ship, if the length of the pilot ladder 4 can meet the boarding requirements, fix the pilot ladder 4 on the deck eyebolt 9 through shackles and securing ropes. The pilot only needs to climb the pilot ladder 4 to directly board or leave the ship; if the length of the pilot ladder 4 cannot meet the boarding requirements, the suspension cable 5 needs to be further lowered, and the suspension cable 5 is fixed on the deck eyebolt 9 through shackles and securing ropes. The pilot needs to first climb the pilot ladder 4 and then board the ship through the accommodation ladder 10.
[0038] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A method for arranging a ship pilot ladder and winch, used for arranging a winch and a ladder on a container ship equipped with a crane, characterized in that: include: Set up winches on the lashing bridge platform; A motor is arranged on one side of the winch and the winch is driven by a chain drive or a belt drive; One end of the soft ladder is connected to the suspension rope, and the end of the suspension rope away from the soft ladder is connected to the winch, so that the winch can reel in or release the soft ladder and the suspension rope.
2. The method for arranging a pilot ladder and a winch for a ship according to claim 1, characterized in that: The method further comprises: arranging a guide slide on the side of the lashing bridge platform, and setting the height of the guide slide based on the state of the soft ladder being retracted or extended.
3. The method for arranging a pilot ladder and a winch for a ship according to claim 1, characterized in that: The method further comprises: arranging a split deck column on the deck, wherein the split deck column comprises two supporting columns, and the two supporting columns are respectively arranged on both sides of the soft ladder.
4. The method for arranging a pilot ladder and a winch for a ship according to claim 3, characterized in that: The method further comprises: setting the position where the side plate of the support column contacts the soft ladder into an arc shape.
5. The method for arranging a ship pilot ladder and winch according to claim 2, characterized in that: The method further comprises: arranging an anti-wear structure at the deck side outer plate, wherein the anti-wear structure is located below the guide slide, and setting the top surface of the anti-wear structure to be arc-shaped.
6. The method for arranging a pilot ladder and a winch for a ship according to claim 1, characterized in that: The method further comprises: arranging an eye plate on the deck, and connecting and fixing the soft ladder and the eye plate by using a shackle when the soft ladder is in a lowered state.
7. The method for arranging a pilot ladder and a winch for a ship according to claim 1, characterized in that: The width dimension of the lashing bridge platform is greater than the overall length dimension of the winch and motor.
8. A ship, characterized in that: The winch and the ladder are arranged using the method for arranging a ship pilot ladder and a winch as described in any one of claims 1 to 7.