Movable dock landing platform for bunkering vessels with raised decks

Abstract

This invention discloses a mobile dock berth platform for bunkering vessels with raised decks, which is mounted on the raised deck. It includes a platform section; the raised deck includes an angled deck; a first walkway and a second walkway are fixedly mounted on the angled deck; the first walkway is located diagonally above the second walkway; both the first and second walkways extend along the length of the vessel; the two ends of the platform section are respectively located above the first and second walkways; a traction mechanism is provided between the platform section and the first walkway; a guide rail is provided on the first walkway, and the traction mechanism is mounted on the guide rail; a vertical support member is provided at the bottom of the platform section, and rollers are provided at the bottom of the vertical support member, with the rollers located above the second walkway. This invention can achieve precise vertical alignment between the berth platform and the dock walkway; its structure is simple and its construction cost is low.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a mobile dock erection platform for bunkering vessels with raised decks. Background Technology

[0002] According to the International Tanker and Oil Terminal Safety Guidelines, terminals provide walkways for the safe connection between the quay and vessels. Their structure is similar to a ship's gangway. At berths where large vessels are moored, walkways are provided, consisting of a tower with stairs and an actively compensated platform extending from the tower to the vessel's deck. The platform height is adjustable according to the vessel's freeboard. In some berths, access for smaller vessels may be required via internal stairs located below the working surface. The vessel walkway consists of a straight, lightweight connecting structure with supports and handrails on both sides. The walking surface has anti-slip surfaces or transverse rails to provide footholds when tilted. The gangway is installed perpendicular to the ship's side, spanning between the ship's side and the working deck.

[0003] Boarding ramps should be located as close as possible to crew quarters and as far away as possible from the control area. Boarding ramps also serve as escape routes. The location of any movable gangways should be carefully considered to ensure they provide a safe passage from the dock to any escape route.

[0004] When a bunkering vessel is engaged in bunkering operations at a bunkering terminal, the terminal workers need to cross the quay walkway to reach the vessel for the bunkering work. Bunkering vessels are generally small in size, and if they use C-type tanks, they are usually designed with raised decks. The top of these raised decks typically extends beyond the overlap range of the quay walkway, so a platform for the quay walkway to overlap must be designed on the raised deck of the bunkering vessel. However, the relative positions of the walkway and the bunkering arm vary between different bunkering terminals. Therefore, the overlap platform is usually designed only for a few target terminals or is designed to be very wide to accommodate different terminals.

[0005] Existing technological shortcomings: 1. For existing platforms, erecting large platforms at high altitudes will raise the ship's center of gravity, which is detrimental to the ship's stability.

[0006] 2. Although the fixed lap platform has a simple structure, the increase in steel will lead to an increase in cost, and the large support occupies limited deck space, affecting the operation of personnel on the main deck.

[0007] 3. The relative positions of the footbridge and the refueling port are generally different for different refueling terminals, which means that a fixed overlapping platform may not be suitable for multiple terminals.

[0008] 4. Dock walkways can be connected within a 45° left-right rotation range. Fixed connection platforms sometimes require the dock walkways to be connected at an angle. Ships also move due to wind and waves when berthing at the dock. If the direction of the ship's movement is not perpendicular to the dock walkway connection, the stability and safety of the connection will be affected. Summary of the Invention

[0009] In order to overcome the above-mentioned defects in the prior art, the present invention provides a mobile dock erection platform for a bunkering vessel with a raised deck.

[0010] The present invention solves the above-mentioned technical problems through the following technical solution: A mobile docking platform for a bunkering vessel with a raised deck is provided on the raised deck of the bunkering vessel. It includes a platform section providing support for a walkway at the bunkering dock. The raised deck includes an angled deck. A first walkway and a second walkway are fixedly provided on the angled deck. The first walkway is located diagonally above the second walkway. Both the first and second walkways extend along the length of the vessel. The two ends of the platform section are respectively located above the first and second walkways. A traction mechanism is provided between the platform section and the first walkway, capable of moving the platform section along the first walkway. A guide rail is provided on the first walkway, and the traction mechanism is located on the guide rail. A vertical support member is provided at the bottom of the platform section, and rollers are provided at the bottom of the vertical support member, with the rollers located above the second walkway.

[0011] Furthermore, the platform is equipped with railings.

[0012] Furthermore, the bottom of the platform section is provided with two vertical support members, and each vertical support member is provided with a roller at its bottom.

[0013] Furthermore, reinforcement components are provided between the two vertical support members and between the vertical support members and the platform section.

[0014] Furthermore, the reinforcements between the two vertical supports are distributed laterally or diagonally.

[0015] Furthermore, the reinforcement components between the vertical support and the platform are distributed obliquely.

[0016] Furthermore, the roller is a roller with a rubber tire.

[0017] Furthermore, the guide rail is an I-beam rail.

[0018] Furthermore, the first walkway includes angle steel fixed to the sloping deck, with the top of the angle steel horizontally distributed and covered with corrugated steel plates.

[0019] Furthermore, the traction mechanism is a traction trolley.

[0020] The beneficial effects of this invention are as follows: It solves the problem of difficulty in connecting the raised deck of small bunkering vessels with the dock walkway, achieving precise vertical alignment between the connection platform and the dock walkway; it reduces the disadvantages of traditional platforms being large and costly; and it improves the safety, flexibility, and efficiency of passage for bunkering workers. In this invention, the platform, first walkway, and second walkway are constructed on the raised deck, and the structure's center of gravity is close to the ship's center, having minimal impact on the ship's stability. The dock connection platform of this invention can be vertically connected to the dock walkway, eliminating the need for the dock walkway to rotate and connect obliquely with the bunkering vessel. During ship bunkering operations, the vertically connected walkway is less affected by ship movement, making passage safer. The dock connection platform of this invention uses less overall steel, resulting in lower construction costs; its structure is simple, the traction trolley and platform are easy to install and maintain; the traction trolley is easy to operate, and the platform can be moved back and forth manually, making it convenient to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0022] Figure 2 for Figure 1 View from direction A.

[0023] Figure 3 for Figure 1 View from direction B in the middle. Detailed Implementation

[0024] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a mobile dock lap platform for a bunkering vessel with a raised deck is provided on the raised deck of the bunkering vessel; it includes a platform section 13 that provides lap support for a walkway 21 located at the bunkering dock 20.

[0026] The raised deck includes a sloping deck 10; a first passageway 11 and a second passageway 12 are fixedly provided on the sloping deck 10. The first passageway 11 is located diagonally above the second passageway 12; both the first passageway 11 and the second passageway 12 extend along the length of the ship.

[0027] The first walkway 11 includes angle steel fixed to the inclined deck 10, with the top of the angle steel horizontally distributed and covered with corrugated steel plates.

[0028] The top of the second corridor 12 is horizontally distributed. The structure of the second corridor is the same as that of the first corridor.

[0029] The two ends of the platform section 13 are respectively located above the first walkway 11 and the second walkway 12.

[0030] A traction mechanism 14 is provided between the platform section 13 and the first walkway 11, capable of moving the platform section along the first walkway; a guide rail 15 is provided on the first walkway 11, and the traction mechanism 14 is mounted on the guide rail 15. The guide rail 15 is an I-beam rail. The traction mechanism is a traction trolley.

[0031] The bottom of the platform section 13 is provided with a vertical support member 16, and the bottom of the vertical support member 16 is provided with a roller 17, which is located above the second walkway 12.

[0032] The platform section 13 is equipped with railings 19.

[0033] The platform section 13 has two vertical support members 16 at its bottom, and each vertical support member has a roller 17 at its bottom. The roller 17 is a roller with a rubber tire.

[0034] Reinforcing members 18 are provided between the two vertical support members 16 and between the vertical support member 16 and the platform part 13.

[0035] The reinforcement members between the two vertical support members 16 are distributed laterally or diagonally. The reinforcement members between the vertical support member 16 and the platform part 13 are distributed diagonally.

[0036] In this embodiment, the platform section is approximately 4000mm long and 1500mm wide. It is constructed of a frame made of square tubing and angle steel, upon which 6mm thick corrugated steel plates are laid. 1050mm high railings are installed on both sides of the long side of the platform section to prevent falls. The platform section is driven by a traction mechanism, allowing it to move back and forth along the ship's length to align with the refueling dock walkway. Vertical support members are located at the bottom of the platform section, and rubber tires are installed at the bottom of these support members.

[0037] The first walkway, located on the angled deck, is constructed of angle steel and is approximately 1000 mm wide. It features I-beam rails, on which the traction mechanism is mounted. The second walkway, also located on the angled deck, is constructed of angle steel and provides access for rollers mounted at the bottom of the vertical supports.

[0038] This invention extends and expands the platform along the edge of the raised deck of the bunkering vessel. The platform can move along the length of the vessel to adapt to different natural gas terminals. It can also be quickly moved to different locations on the terminal walkways for vertical access, ensuring safe passage. The platform and its supports are composed of steel pipes, square tubes, angle steel, and corrugated steel plates, making it simple in design and easy to manufacture. The rollers of its traveling mechanism are made of non-metallic materials such as rubber to prevent sparks during movement, thus improving safety at bunkering terminals handling flammable and explosive liquids such as natural gas.

[0039] This invention solves the problem of the difficulty in connecting the raised deck of small refueling vessels with the dock walkway, and achieves precise vertical alignment between the connecting platform and the dock walkway; it reduces the disadvantages of traditional platforms being large in size and cost; and it improves the safety, flexibility and efficiency of refueling operation personnel.

[0040] The present invention has the following advantages: 1. The platform section, first walkway, and second walkway are built on the raised deck. The center of gravity of the structure is close to the middle of the ship, which has little impact on the stability of the ship.

[0041] 2. The dock connection platform of the present invention can be vertically connected to the dock walkway, eliminating the need for the walkway to rotate and connect obliquely with the refueling vessel. During vessel refueling operations, the vertically connected walkway is less affected by the vessel's movement, making passage safer.

[0042] The dock erection platform of the present invention uses less steel and has a low construction cost; its structure is simple, the traction trolley and platform are easy to install and maintain; the traction trolley is easy to operate, and the platform can be moved back and forth manually, making it convenient to use.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A mobile dock lap platform for a bunkering vessel with a raised deck, disposed on the raised deck of the bunkering vessel; comprising a platform portion providing lap support for a walkway bridge disposed at the bunkering dock; characterized in that, The raised deck includes an angled deck; the angled deck is fixedly provided with a first passageway and a second passageway; the first passageway is located diagonally above the second passageway; both the first passageway and the second passageway extend along the length of the ship; the two ends of the platform section are respectively located above the first passageway and the second passageway; a traction mechanism capable of moving the platform section along the first passageway is provided between the platform section and the first passageway; a guide rail is provided on the first passageway, and the traction mechanism is located on the guide rail; a vertical support member is provided at the bottom of the platform section, and a roller is provided at the bottom of the vertical support member, with the roller located above the second passageway.

2. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The platform is equipped with railings.

3. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The bottom of the platform is equipped with two vertical support members, and each vertical support member has a roller at its bottom.

4. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 3, characterized in that, Reinforcing members are provided between the two vertical support members and between the vertical support members and the platform.

5. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 4, characterized in that, The reinforcement components between the two vertical supports are distributed laterally or diagonally.

6. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 4, characterized in that, The reinforcement components between the vertical support and the platform are distributed diagonally.

7. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The rollers are rollers with rubber tires.

8. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The guide rail is an I-beam rail.

9. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The first walkway consists of angle steel fixed to the sloping deck, with the tops of the angle steel horizontally distributed and covered with corrugated steel plates.

10. The mobile dock erection platform for a bunkering vessel with a raised deck as described in claim 1, characterized in that, The traction mechanism is a traction trolley.

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