Boarding device for ship cargo hold and ship

Abstract

The invention discloses a boarding device for a ship cargo hold and a ship, and belongs to the technical field of ships. The ship comprises a main deck, a cargo hold, a hatch coaming and a hatch cover, an opening is formed in the top of the cargo hold, the hatch coaming is arranged on the main deck and extends upwards around the opening, and the hatch cover is rotationally connected to the hatch coaming so as to be opened and closed at the top of the hatch coaming; the embarkation device for the ship cargo hold comprises a first inclined ladder, a second inclined ladder and a movable handrail, one end of the first inclined ladder is connected to a main deck, and the other end of the first inclined ladder is connected to the outer side face of a hatch coaming; the second inclined ladder is arranged on the side surface of the cabin cover; when the hatch cover is in a closed state, the movable handrail is detachably connected to the first inclined ladder and the second inclined ladder; when the movable handrail is in a detached state, the hatch cover is overturned until the second inclined ladder faces the main deck, and the hatch cover and the second inclined ladder are arranged at intervals with the first inclined ladder so as to open the opening. The embarkation device can be arranged at the position of the hatch cover, and interference with the opened hatch cover is avoided.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and more particularly to a boarding device for a ship's cargo hold and a ship. Background Technology

[0002] Bulk carriers are equipped with helicopter decks that can hover at least to meet emergency rescue capabilities. Figure 1 As shown, in related technologies, the hatches in the ship are used as helicopter decks, and an inclined ladder 3 with an inclination of no more than 50° is arranged between the main deck 1 and the hatch 2 to meet the needs of personnel boarding and emergency fire fighting. Because some bulk carriers choose folding hatches 2 in order to pursue a larger hatch clearance, the inclined ladder will interfere with the opened hatch 2, making it impossible to arrange the inclined ladder 3. Summary of the Invention

[0003] The purpose of this invention is to provide a boarding device and a ship for a ship's cargo hold, which can be arranged at the hatch cover position and avoids interference with the open hatch cover.

[0004] To achieve this objective, the present invention adopts the following technical solution: A boarding device for a ship's cargo hold, the ship including a main deck, a cargo hold, a hatch coaming, and a hatch cover, the cargo hold having an opening at the top, the hatch coaming being disposed on the main deck and extending upward around the opening, and the hatch cover being rotatably connected to the hatch coaming to open and close at the top of the hatch coaming; the boarding device includes: The first inclined ladder is connected at one end to the main deck and at the other end to the outer side of the hatch coaming. A second inclined ladder is located on the side of the hatch; The movable handrail is detachably connected to the first inclined ladder and the second inclined ladder when the hatch is closed. With the movable handrail in the detached state, the hatch is flipped so that the second inclined ladder faces the main deck. Both the hatch and the second inclined ladder are spaced apart from the first inclined ladder to open the opening.

[0005] In some embodiments, the boarding device further includes a support member that is supported between the first inclined ladder and the hatch coaming.

[0006] In some embodiments, the first inclined ladder includes an inclined ladder body and a fixed handrail, the support member is connected to the side of the inclined ladder body away from the fixed handrail and is connected to the middle position of the inclined ladder body, and the inclined ladder body extends above the hatch coaming.

[0007] In some embodiments, both the first inclined ladder and the second inclined ladder are provided with a plug-in seat, the plug-in seat is provided with a plug-in slot, and the movable handrail is provided with two plug-in posts, the two plug-in posts being plugged into the plug-in slots of the first inclined ladder and the second inclined ladder respectively.

[0008] In some embodiments, the sidewall of the insertion slot is provided with a through hole, through which the insertion slot communicates with the outside.

[0009] In some embodiments, the boarding device further includes a tongue-type pin, which includes a pin body and a tongue. The pin body is simultaneously inserted into the plug post and the plug slot, and the tongue is capable of abutting against the outside of the plug slot.

[0010] In some embodiments, the tongue-type pin further includes a chain, the tongue being rotatably connected to one end of the pin body, the chain being connected to the other end of the pin body, and the chain being connected to the first inclined ladder or the second inclined ladder.

[0011] In some embodiments, when the hatch is open, the hatch is perpendicular to the main deck, the second inclined ladder is vertically positioned above the first inclined ladder, and the second inclined ladder and the first inclined ladder are spaced apart.

[0012] In some embodiments, the hatch includes a first cover and a second cover that are hinged to each other, and a second inclined ladder is disposed on the side of the first cover. In the closed state of the hatch, the second inclined ladder and the second cover are disposed on opposite sides of the first cover. In the open state of the hatch, the second cover is folded to the side of the first cover away from the opening, and the bottom of the second cover is higher than the first inclined ladder.

[0013] In some embodiments, the main deck is provided with a support frame located outside the cargo hold, and the hatch cover is hinged to the support frame.

[0014] A vessel including boarding facilities for the cargo hold as described in any of the preceding claims.

[0015] The beneficial effects of this invention are: This invention provides a boarding device and vessel for a ship's cargo hold. A first inclined ladder, a main deck, and a hatch coaming are fixedly connected. A second inclined ladder is fixedly connected to a hatch cover, which can be flipped to switch between an open and closed state. The hatch cover flips along with the second inclined ladder. When the hatch cover is closed, a movable handrail connects the first and second inclined ladders, making them a unified whole. This meets the needs of personnel boarding and emergency firefighting, and ensures safety during boarding in emergencies without affecting helicopter landings. Removing the movable handrail allows the hatch cover to be opened. In this state, the second inclined ladder faces the main deck. Both the hatch cover and the second inclined ladder are spaced apart from the first inclined ladder, allowing the boarding device to be positioned at the hatch cover location while avoiding interference between the boarding device and the opened hatch cover. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hatch in the open and closed states in the prior art; Figure 2 This is a schematic diagram of the boarding device with the hatch closed according to a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the hatch opening and boarding device provided in a specific embodiment of the present invention; Figure 4 This is a front view of the connector provided in a specific embodiment of the present invention; Figure 5 This is a side view of the connector and the tongue-shaped pin provided in a specific embodiment of the present invention; Figure 6 This is a top view of the socket and the tongue-and-groove pin provided in a specific embodiment of the present invention; Figure 7 This is a cross-sectional view of the socket and the tongue-type pin provided in a specific embodiment of the present invention; Figure 8 This is a schematic diagram of the hatch opening / closing state with respect to the main deck and boarding device, provided in a specific embodiment of the present invention; Figure 9 This is an exploded view of the hatch with its open / closed state, the main deck, and the boarding device, provided in a specific embodiment of the present invention.

[0017] In the picture: 1. Main deck; 2. Hatch cover; 3. Angled ladder; 100. Main deck; 200. Hatch coaming; 300. Hatch cover; 310. First cover; 320. Second cover; 330. Hinge; 400. Boarding device; 410. First inclined ladder; 411. Inclined ladder body; 412. Fixed handrail; 420. Second inclined ladder; 430. Movable handrail; 431. Insertion post; 440. Support component; 450. Insertion seat; 451. Insertion slot; 452. Through hole; 453. Bottom plate; 454. Side plate; 455. Insertion hole; 460. Tongue-type pin; 461. Pin body; 462. Tongue; 463. Chain; 500. Support frame. Detailed Implementation

[0018] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] like Figures 2-9As shown, this embodiment provides a vessel including a main deck 100, a cargo hold, a hatch coaming 200, a hatch cover 300, and boarding facilities for the cargo hold. The cargo hold has an opening at the top. The hatch coaming 200 is disposed on the main deck 100 and extends upward around the opening. The hatch cover 300 is flip-up to open and close at the top of the hatch coaming 200 and serves as a helicopter deck. The above-described vessel is particularly suitable for bulk carriers.

[0022] In one embodiment, the main deck 100 is provided with a support frame 500, which is located outside the cargo hold. A hatch cover 300 is connected to the support frame 500 via a hinge 330, a pivot, or a hinge. The hatch cover 300 rotates around the hinge 330, pivot, or hinge, allowing it to flip relative to the support frame 500. This allows it to close the top of the hatch coaming 200 when in a closed state, or open the top of the hatch coaming 200 when in an open state. In another embodiment, one side of the hatch cover 300 is connected to the hatch coaming 200 via a hinge 330, pivot, or hinge. The hatch cover 300 rotates around the hinge 330, pivot, or hinge, allowing it to flip relative to the hatch coaming 200. This allows it to close the top of the hatch coaming 200 when in a closed state, or open the top of the hatch coaming 200 when in an open state.

[0023] This embodiment also provides a boarding device for a ship's cargo hold, including a first inclined ladder 410, a second inclined ladder 420, and a movable handrail 430. One end of the first inclined ladder 410 is connected to the main deck 100, and the other end is connected to the outer side of the hatch coaming 200. The second inclined ladder 420 is located on the side of the hatch cover 300. When the hatch cover 300 is closed, the movable handrail 430 is detachably connected to the first inclined ladder 410 and the second inclined ladder 420. When the movable handrail 430 is detached, the hatch cover 300 is flipped so that the second inclined ladder 420 faces the main deck 100. The hatch cover 300 and the second inclined ladder 420 are both spaced apart from the first inclined ladder 410 to open the opening.

[0024] The first inclined ladder 410, the main deck 100, and the hatch coaming 200 are fixedly connected. The second inclined ladder 420 is fixedly connected to the hatch cover 300. The hatch cover 300 flips to switch between an open and closed state, and flips along with the second inclined ladder 420. When the hatch cover 300 is closed, the movable handrail 430 connects the first inclined ladder 410 and the second inclined ladder 420, making the three connected as a whole. This meets the needs of personnel boarding and emergency fire fighting, and ensures the safety of boarding in emergencies without affecting helicopter landing. The movable handrail 430 is removed, and the hatch 300 can be opened, so that the second inclined ladder 420 faces the main deck 100. During the process of the hatch 300 being flipped open and in the open state, the hatch 300 and the second inclined ladder 420 are both spaced apart from the first inclined ladder 410, so that the boarding device 400 is arranged at the position of the hatch 300, and interference between the boarding device 400 and the hatch 300 during the opening process and after the opening is avoided, that is, interference between the boarding device 400 and the open hatch 300 is avoided.

[0025] Optionally, the first inclined ladder 410 includes a ladder body 411 and a fixed handrail 412, improving boarding safety in the first inclined ladder 410 section. When both the hatch 300 and the second inclined ladder 420 are spaced apart from the first inclined ladder 410, the hatch 300 is spaced apart from the ladder body 411 and the fixed handrail 412, and the second inclined ladder 420 is spaced apart from the ladder body 411 and the fixed handrail 412, thereby avoiding interference.

[0026] The boarding device 400 also includes a support member 440, which is connected between the first inclined ladder 410 and the hatch coaming 200, increasing the distance between them and providing more clearance for the hatch 300 in the open state, thus preventing structural interference. The support member 440 is connected to the side of the first inclined ladder 410 (i.e., the ladder body 411) away from the fixed handrail 412, and is located in the middle of the ladder body 411. The ladder body 411 extends above the hatch coaming 200, and the extension dimension is set appropriately according to requirements to minimize the distance between the first inclined ladder 410 and the second inclined ladder 420. In one embodiment, the support member 440 is plate-shaped and is welded or connected to the first inclined ladder 410 and the hatch coaming 200 by fasteners such as screws. The size of the support member 440 can be set according to requirements and is not limited.

[0027] Both the first inclined ladder 410 and the second inclined ladder 420 are provided with a connector 450, and the connector 450 is provided with a connector slot 451. The movable handrail 430 is provided with two connector posts 431, which are inserted into the connector slots 451 of the first inclined ladder 410 and the second inclined ladder 420 respectively. The movable handrail 430 is connected to the first inclined ladder 410 and the second inclined ladder 420 respectively for easy assembly and disassembly. The first inclined ladder 410 is provided with two connectors 450, the second inclined ladder 420 is provided with two connectors 450, and the movable handrail 430 is provided with two connector posts 431. One end of the two movable handrails 430 is inserted into the two connectors 450 on the first inclined ladder 410, and the other end is inserted into the two connectors 450 on the second inclined ladder 420. By increasing the number of movable handrails 430, the connection reliability of the first inclined ladder 410 and the second inclined ladder 420 is improved, further ensuring the safety of boarding.

[0028] The socket includes a base plate 453 and a side plate 454 connected to the base plate 453. The side plate 454 is arranged to form a cylindrical shape. The base plate 453 and the side plate 454 form a plug groove 451. The base plate 453 is installed on the first inclined ladder 410 or the second inclined ladder 420.

[0029] The side wall of the insertion slot 451 is provided with a through hole 452, through which the insertion slot 451 communicates with the outside world to prevent water from accumulating inside the insertion slot 451.

[0030] The boarding device 400 also includes a tongue-type pin 460, which includes a pin body 461 and a tongue 462. The pin body 461 is simultaneously inserted into the insertion post 431 and the insertion slot 451, and the tongue 462 can abut against the outside of the insertion slot 451 for easy and quick removal, further improving the installation reliability of the movable handrail 430. Specifically, the side walls of the insertion post 431 and the insertion slot 451 are provided with through holes 455. The pin body 461 is inserted into the insertion hole 455, and then the tongue 462 abuts against the outside of the insertion slot 451.

[0031] The tongue-type pin 460 also includes a chain 463. The tongue 462 is rotatably connected to one end of the pin body 461, and the chain 463 is connected to the other end of the pin body 461. The chain 463 is also connected to the first inclined ladder 410 or the second inclined ladder 420. The tongue 462, the pin body 461, and the chain 463 are interconnected to prevent loss.

[0032] With the hatch 300 open, the hatch 300 is perpendicular to the main deck 100, and the second inclined ladder 420 faces the main deck 100. That is, the second inclined ladder 420 is located at the bottom of the hatch 300. The second inclined ladder 420 is vertically positioned above the first inclined ladder 410, and the two are spaced apart. The second inclined ladder 420, located at the bottom of the hatch 300, is above the first inclined ladder 410. Therefore, the hatch 300 is also located above the first inclined ladder 410, which can ensure no interference.

[0033] The hatch 300 includes a first cover 310 and a second cover 320 that are hinged to each other, i.e., the first cover 310 and the second cover 320 are hinged by a hinge 330. The second inclined ladder 420 is located on the side of the first cover 310. When the hatch 300 is closed, the second inclined ladder 420 and the second cover 320 are located on opposite sides of the first cover 310. When the hatch 300 is open, the second cover 320 is folded to the side of the first cover 310 away from the opening, so as to avoid the second cover 320 from blocking the space above the opening. The bottom of the second cover 320 is higher than the first inclined ladder 410. Neither the first cover 310 nor the second cover 320 will interfere with the structure of the first inclined ladder 410.

[0034] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A boarding arrangement for a cargo hold of a vessel, characterized in that, The ship includes a main deck (100), a cargo hold, a hatch coaming (200) and a hatch cover (300), the top of the cargo hold has an opening, the hatch coaming (200) is arranged on the main deck (100) and extends upward around the opening, and the hatch cover (300) is rotationally connected to the hatch coaming (200) to open and close the top of the hatch coaming (200); the boarding device includes: A first ladder (410) connected to one end of the main deck (100) and the other end of the outer side of the hatch coaming (200); A second ladder (420) arranged on the side of the hatch cover (300); A movable handrail (430) which, in the closed state of the hatch cover (300), is detachably connected to the first ladder (410) and the second ladder (420); When the movable handrail (430) is in the detached state, the hatch cover (300) is turned to the second ladder (420) facing the main deck (100), and the hatch cover (300) and the second ladder (420) are both spaced apart from the first ladder (410) to open the opening.

2. Embarkation device for a cargo hold of a ship according to claim 1, characterized in that The boarding device further includes a support member (440) which is supported and connected between the first ladder (410) and the hatch coaming (200).

3. Embarkation device for a cargo hold of a ship according to claim 2, characterized in that The first ladder (410) includes a ladder body (411) and a fixed handrail (412), the support member (440) is connected to one side of the ladder body (411) away from the fixed handrail (412) and to the middle position of the ladder body (411), and the ladder body (411) extends above the hatch coaming (200).

4. The embarkation device for a cargo hold of a marine vessel according to claim 1, characterized in that, Both the first ladder (410) and the second ladder (420) are provided with a plug-in seat (450) provided with a plug-in slot (451), and the movable handrail (430) is provided with two plug-in columns (431) which are correspondingly plugged into the plug-in slots (451) of the first ladder (410) and the second ladder (420).

5. Embarkation device for a cargo hold of a ship according to claim 4, characterized in that A side wall of the plug-in slot (451) is provided with a through hole (452), and the plug-in slot (451) is in communication with the outside through the through hole (452).

6. The embarkation device for a cargo hold of a marine vessel according to claim 4, characterized in that, The boarding device further includes a tongue bolt (460) including a bolt body (461) and a tongue (462), the bolt body (461) is plugged into the plug-in column (431) and the plug-in slot (451) at the same time, and the tongue (462) can abut against the outside of the plug-in slot (451).

7. A boarding arrangement for a cargo hold of a marine vessel according to claim 6, characterized in that The tongue bolt (460) further includes a chain (463), one end of the tongue (462) is rotationally connected to the bolt body (461), the other end of the bolt body (461) is connected to the chain (463), and the chain (463) is connected to the first ladder (410) or the second ladder (420).

8. The embarkation device for a cargo hold of a marine vessel of claim 1, wherein, The hatch cover (300) comprises a first cover body (310) and a second cover body (320) hinged to each other, the second ladder (420) is arranged on the side of the first cover body (310), in the closed state of the hatch cover (300), the second ladder (420) and the second cover body (320) are arranged on the opposite sides of the first cover body (310), in the open state of the hatch cover (300), the second cover body (320) is folded to the side of the first cover body (310) away from the opening, and the bottom of the second cover body (320) is higher than the first ladder (410).

9. The embarkation device for a cargo hold of a marine vessel of claim 1, wherein, The main deck (100) is provided with a support frame (500), the support frame (500) is arranged outside the cargo hold, and the hatch cover (300) is hinged to the support frame (500).

10. A vessel characterised in that, A boarding device for a cargo hold of a ship, comprising any one of claims 1-9.

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