Anchor observing device of dual-fuel container ship

Abstract

The utility model relates to the field of dual-fuel container ships, and provides an anchor observing device of a dual-fuel container ship. Comprising a door frame and an observation door installed in the door frame, the bottom of the observation door is hinged to the door frame or a ship body structure through a pair of hinges, the observation door is opened towards the outer side of a ship body around the hinges, longitudinal hydraulic cylinders are symmetrically installed on the edges of the two side edges of the inner side of the observation door respectively, and the bottom ends of the hydraulic cylinders are hinged to the door frame. The telescopic end of the hydraulic cylinder is hinged to the inner side of the observation door. A locking structure is installed between the observation door and the door frame and comprises a pair of horizontal telescopic cylinders. The observation door is opened and closed through stretching of the hydraulic cylinder as power, when the observation door is closed, the observation door serves as a part of a ship outer plate, and when the observation door is opened, it is guaranteed that the observation door becomes a horizontal platform extending out of the outer side of the ship outer plate through the arrangement of the stroke of the hydraulic cylinder, and personnel can observe the outer side of a ship conveniently.

Description

Technical Field

[0001] This utility model relates to the field of dual-fuel container ships, specifically to a dual-fuel container ship anchor observation device. Background Technology

[0002] Observation platforms play a vital role in the safe navigation and anchoring operations of vessels at sea. During anchoring, the platform provides a stable observation area, allowing crew members to clearly observe the condition of the anchor chain and anchor claws, promptly identify and address any problems. In addition to this function, observation platforms can also be used for vessel inspection and maintenance, ensuring the vessel's normal operation. Observation platforms are generally designed to be robust and durable, using materials sufficient to withstand severe weather and extreme sea conditions to ensure crew safety. They are typically installed on the side or stern of the hull structure, and their surfaces are usually made of non-slip materials to increase crew stability. Furthermore, observation platforms are equipped with handrails, safety belts, and other safety features to further enhance safety. Given their crucial role in ensuring crew safety and the vital operation of the vessel, the design and installation of anchor platforms should be given sufficient consideration in ship design.

[0003] Due to the special bow structure of large container ships, the design of the anchor observation platform, including its location, structure, and orientation, must not only facilitate observation of the anchor chain and anchor claw status but also meet the requirements of the ship's structural lines. Summary of the Invention

[0004] To meet the structural hull requirements of large dual-fuel container ships and ensure safety when observing the status of anchor chains and claws in adverse weather and extreme sea conditions, this utility model provides an anchor observation device for dual-fuel container ships.

[0005] The technical solution adopted by this utility model is as follows:

[0006] A dual-fuel container ship observation device includes a door frame and an observation door installed within the door frame. The door frame is fixedly welded to an observation hole on the ship's outer plating. The bottom of the observation door is hinged to the door frame or the ship's hull structure via a pair of hinges. The observation door opens outwards around the hinges. A railing is detachably installed on the inside of the observation door. Longitudinal hydraulic cylinders are symmetrically installed on the edges of the two sides of the inside of the observation door. The bottom end of the hydraulic cylinder is hinged to the door frame, and the telescopic end of the hydraulic cylinder is hinged to the inside of the observation door. Within the telescopic stroke range of the hydraulic cylinder, the observation door opens outwards to a horizontal position and closes inwards to seal the door frame. A locking structure is installed between the observation door and the door frame. The locking structure includes a pair of horizontal telescopic cylinders installed in the inner layer of the observation door. The pair of horizontal telescopic cylinders extend and retract towards the door frames on both sides. A pin is installed at the telescopic end of each horizontal telescopic cylinder, and the pin engages with a corresponding pin hole on the door frame.

[0007] Furthermore, the locking structure also includes a latching structure between the top beam of the observation door and the door frame. The latching structure includes a locking plate and a threaded pin. The locking plate is rotatably supported on the door frame via a pivot. The locking plate has an open waist-shaped groove on the side facing the threaded pin. The threaded pin is rotatably supported on the observation door via a pivot. The threaded pin engages with the waist-shaped groove of the locking plate, and a wing nut is installed on the threaded pin.

[0008] Furthermore, a linkage structure or a cable structure is installed between the two sides of the observation door and the door frame. The linkage structure includes at least two linkages. When the observation door is opened to the horizontal position, the linkage structure and the cable structure are in a state of tension.

[0009] Furthermore, the observation door is hinged to the hull structure via a C-shaped connector. One end of the C-shaped connector is welded and fixed to the inner plate of the observation door, and the other end of the C-shaped connector is connected to a rotating support base welded to the hull structure.

[0010] Furthermore, railings are installed on the top edge and both sides of the inner side of the observation door. The uprights of the railings correspond to the insertion tubes welded on the observation door. Each insertion tube is connected to a pin. The railings and insertion tubes are fixed by the pins and pin holes.

[0011] Furthermore, a sealing ring is conveniently fixed on the inner side of the observation door, and the sealing ring cooperates with a ring of protruding ribs on the outer side of the door frame.

[0012] Furthermore, the horizontal telescopic cylinder and the hydraulic cylinder are respectively connected to the hydraulic station via hydraulic pipelines.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0014] Observation doors are installed on the outer plating of the ship to avoid affecting its hull lines. The doors are opened and closed using hydraulic cylinders. When closed, the door is integrated into the outer plating. When open, the hydraulic cylinders extend to create a horizontal platform extending beyond the outer plating, facilitating observation of the ship's exterior. Removable railings ensure safety for personnel during external observations. A linkage or cable structure provides double safety in the open state, preventing the door from tipping over in the event of hydraulic cylinder failure. When closed, a pair of horizontal hydraulic cylinders and a pair of top locking mechanisms provide double locking, preventing accidental opening in harsh environments or in the event of hydraulic system failure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is a diagram showing the opening of the observation door.

[0018] In the diagram: 1. Door frame; 2. Observation door; 3. Sealing ring; 4. C-type connector; 5. Hydraulic cylinder; 6. Linkage structure; 7. Horizontal telescopic cylinder; 8. Hydraulic station; 9. Locking structure; 91. Locking plate; 92. Threaded pin; 93. Wing nut; 10. Railing; 11. Insert pipe; 12. Pin. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0020] like Figure 1-3 As shown, the observation anchor device for a dual-fuel container ship consists of a door frame 1, an observation door 2, an opening device, a locking structure, and an auxiliary protective structure, etc., and is used to form an observation platform that extends horizontally out of the hull after being opened on the outer plate of one side of the dual-fuel container.

[0021] Due to the unique shape of the bow section of the hull, an observation hole is provided on the outer plating on one side of the bow section in the width direction. The door frame 1 is fixedly welded to the observation hole, and the weld seam forms a seal. The observation door 2 cooperates with the door frame 1. When the observation door 2 is closed, a sealing ring 3 on its inner side cooperates with a raised rib on the outer side of the door frame 1 to form a seal. At this time, the observation door 2 is part of the ship's outer plating.

[0022] The observation door 2 opens by flipping outwards, therefore, the bottom crossbeam on the inner side of the observation door 2 is rotatably connected by two or more hinge structures. In this technical solution, the observation door is hinged by two C-shaped connectors 4. One end of the C-shaped connector 4 is welded and fixed to the inner plate of the observation door 2, and the other end of the C-shaped connector 4 is connected to the rotating support seat welded to the hull structure. The hinge structure using C-shaped connectors 4 is to avoid the formation of hinge seams on the door frame and the exposure of the hinge components, which would affect the appearance of the ship's outer plating.

[0023] To open observation door 2, longitudinal hydraulic cylinders 5 are symmetrically installed on the two inner edges of observation door 2. The bottom end of hydraulic cylinder 5 is hinged to a rotating support seat on the door frame, and the telescopic end of hydraulic cylinder 5 is hinged to an inner hinge seat of the observation door. When hydraulic cylinder 5 extends to its maximum stroke, observation door 2 flips outward around the hinge and opens to a horizontal position, forming a horizontal platform extending outside the hull. At this time, personnel can walk onto the horizontal platform to observe the status of the anchor. When hydraulic cylinder 5 retracts, observation door 2 closes and seals with door frame 1.

[0024] To prevent the observation door from tipping over in the event of hydraulic failure, a linkage structure 6 or a cable structure is installed between the two sides of the observation door and the door frame. The linkage structure 6 includes at least two hinged linkages. When the observation door is opened to the horizontal position, the linkage structure 6 and the cable structure are in a state of tension.

[0025] To prevent accidental opening when the observation door is closed, the observation door and door frame are locked together by a locking mechanism. The locking mechanism consists of a pair of horizontal telescopic cylinders 7, installed on the inner side of the observation door. These cylinders extend and retract towards the door frame on both sides. Each cylinder 7 has a pin at its extension end, which mates with a corresponding pin hole on the door frame. Locking is achieved when the pin is inserted into the pin hole.

[0026] A hydraulic station 8 is installed inside the ship near the observation door. The extension and retraction of the horizontal telescopic cylinder 7 and the hydraulic cylinder 5 are controlled by the hydraulic station 8 and hydraulic pipelines.

[0027] To prevent the locking mechanism from failing in case of hydraulic system malfunction, the locking structure also includes multiple latching structures 9 between the top beam of the observation door and the door frame. Each latching structure 9 includes a locking plate 91 and a threaded pin 92. The locking plate 91 is rotatably supported on the door frame 1 via a pivot. The side of the locking plate 91 facing the threaded pin 92 has an open, waist-shaped groove. The threaded pin 92 is rotatably supported on the observation door 2 via a pivot and engages with the waist-shaped groove of the locking plate 91. A wing nut 93 is installed on the threaded pin. By rotating the locking plate 91 to the observation door and limiting its rotation with the observation door's support, rotating the threaded pin 92 to engage with the waist-shaped groove of the locking plate, and tightening the wing nut 93, the lock is secured.

[0028] The auxiliary protective structure mainly consists of railings 10 and an anti-slip pad layer on the surface of the observation door. Railings 10 are installed on the top and side edges of the inner side of the observation door. When the observation door is open, all three sides except the side closest to the door frame are surrounded by railings to prevent people from falling into the sea. Each railing is a single piece, consisting of a grid pattern formed by intersecting uprights and horizontal bars. Inserts 11, corresponding to the uprights of the railings, are welded onto the observation door. Each insert 11 is connected to a pin 12 via a connecting rope. When the railing 10 is inserted into the insert 11, it is secured by the pin 12. The railings are installed before the observation door is opened and removed after the observation door is closed.

Claims

1. A dual-fuel container ship anchor observation device, comprising a door frame and an observation door installed within the door frame, the door frame being fixedly welded to an observation hole on the ship's outer plating, the bottom of the observation door being hinged to the door frame or the ship's hull structure via a pair of hinges, the observation door opening outwards from the hull around the hinges, characterized in that... A railing is detachably installed on the inner side of the observation door. Longitudinal hydraulic cylinders are symmetrically installed on the edges of the two inner sides of the observation door. The bottom end of each hydraulic cylinder is hinged to the door frame, and the telescopic end of the hydraulic cylinder is hinged to the inner side of the observation door. Within the telescopic stroke range of the hydraulic cylinders, the observation door opens outwards to a horizontal position around the hinges and closes inwards to seal the door frame. A locking structure is installed between the observation door and the door frame. The locking structure includes a pair of horizontal telescopic cylinders installed in the inner interlayer of the observation door. The pair of horizontal telescopic cylinders extend and retract towards the door frames on both sides. Each horizontal telescopic cylinder has a pin installed at its telescopic end, and the pins correspond to pin holes on the corresponding side of the door frame.

2. The dual-fuel container ship anchor observation device according to claim 1, characterized in that, The locking structure also includes a latching structure between the top beam of the observation door and the door frame. The latching structure includes a locking plate and a threaded pin. The locking plate is rotatably supported on the door frame via a pivot. The locking plate has an open waist-shaped groove on the side facing the threaded pin. The threaded pin is rotatably supported on the observation door via a pivot. The threaded pin engages with the waist-shaped groove of the locking plate, and a wing nut is installed on the threaded pin.

3. The dual-fuel container ship anchor observation device according to claim 1, characterized in that, The observation door is equipped with a linkage structure or a cable structure between its two sides and the door frame. The linkage structure includes at least two linkages. When the observation door is opened to the horizontal position, the linkage structure and the cable structure are in a state of tension.

4. The dual-fuel container ship anchorage device according to claim 1, characterized in that, The observation door is hinged to the hull structure via a C-shaped connector. One end of the C-shaped connector is welded and fixed to the inner plate of the observation door, and the other end of the C-shaped connector is connected to a rotating support base welded to the hull structure.

5. The dual-fuel container ship anchor observation device according to claim 1, characterized in that, The observation door is equipped with railings on its inner top edge and two side edges. The uprights of the railings correspond to the insertion tubes welded on the observation door. Each insertion tube is connected to a pin. The railings and insertion tubes are fixed by pins and pin holes.

6. The dual-fuel container ship anchor observation device according to claim 1, characterized in that, A sealing ring is fixed to the inside of the observation door, and the sealing ring cooperates with a ring of protruding ribs on the outside of the door frame.

7. The dual-fuel container ship anchor observation device according to claim 1, characterized in that, The horizontal telescopic cylinder and the hydraulic cylinder are respectively connected to the hydraulic station via hydraulic pipelines.

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