Arrangement structure of watertight door between stairways of roll-on-roll-off ship

Abstract

The utility model discloses an arrangement structure of watertight doors between stairways of a roll-on-roll-off ship, which comprises a stairway enclosure bulkhead and a stairway deck, the stairway enclosure bulkhead divides the stairway deck into a stairway inner deck and a stairway outer deck, and the watertight doors are arranged on part of the stairway enclosure bulkhead between the stairway outer deck and the stairway inner deck; and the outer deck between the stairways is a corner area of the deck between the stairways. According to the arrangement structure of the watertight doors between the stairways of the roll-on-roll-off ship, the design specifications of the stairways are met, meanwhile, the corner space between the stairways is fully used for obliquely arranging the watertight doors, the corner unoccupied space between the stairways is used as a buffering platform for entering and exiting a movable deck, the maximum design of the movable deck can be met, and the service life of the movable deck is prolonged. And the safety and the practicability can be improved.

Description

Technical Field

[0001] This utility model relates to the field of watertight technology for ships, and in particular to a watertight door arrangement structure for the stairwell of a roll-on / roll-off ship. Background Technology

[0002] Car carriers utilize movable decks to accommodate different vehicle types and cargo. Personnel access each deck via staircases located at the bow, midships, and stern. For fixed decks requiring watertightness, watertight doors must be installed according to regulations. To maximize loading capacity, the watertight doors on the staircase walls can only open inwards. Movable decks have two working states: working and stowage. When the movable deck is in the stowage position, there is a significant risk of falls when personnel enter or exit this deck. Therefore, optimizing the layout to improve both safety and practicality is a crucial design consideration, balancing maximum loading capacity with compliant staircase access. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a watertight door arrangement structure for the stairwell of a roll-on / roll-off ship. While meeting the design specifications of the stairwell, it makes full use of the corner space of the stairwell to arrange the watertight door obliquely, and uses the remaining space at the corner of the stairwell as a buffer platform for entering and exiting the movable deck. This can not only meet the design of maximizing the movable deck, but also improve the safety and practicality of the area.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A watertight door arrangement structure for a ro-ro ship's stairwell includes a stairwell enclosure wall and a stairwell deck. The stairwell enclosure wall divides the stairwell deck into an inner stairwell deck and an outer stairwell deck. The watertight door is located on a portion of the stairwell enclosure wall between the outer stairwell deck and the inner stairwell deck.

[0006] Furthermore, the outer deck between the stairways is a corner area of ​​the deck between the stairways.

[0007] Furthermore, the stairwell enclosure includes a first transverse enclosure and a second transverse enclosure arranged in parallel, and a first longitudinal enclosure and a second longitudinal enclosure arranged in parallel. One end face of the first transverse enclosure and one end face of the second transverse enclosure are both located inside the inner side of the first longitudinal enclosure, and the length of the first transverse enclosure is less than the length of the second transverse enclosure. One end face of the first longitudinal enclosure and one end face of the second longitudinal enclosure are both located inside the inner side of the second transverse enclosure, and the length of the second longitudinal enclosure is less than the length of the first longitudinal enclosure. A stairwell deck partition enclosure is connected between the end of the first transverse enclosure away from the first longitudinal enclosure and the end of the second longitudinal enclosure away from the second transverse enclosure. The watertight door is located on the stairwell deck partition enclosure, and the outer deck of the stairwell is located outside the stairwell deck partition enclosure.

[0008] Furthermore, the deck partition wall between the stairways includes a third longitudinal wall and an oblique wall. One end of the third longitudinal wall is connected to the first transverse wall, and the other end of the third longitudinal wall is connected to the oblique wall. The watertight door is located on the oblique wall, and the outer deck of the stairway is located outside the third longitudinal wall and the oblique wall.

[0009] Furthermore, the deck partition wall between the stairways includes a third transverse partition wall and an oblique partition wall. One end of the third transverse partition wall is connected to the second longitudinal partition wall, and the other end of the third transverse partition wall is connected to the oblique partition wall. The watertight door is located on the oblique partition wall, and the outer deck of the stairway is located outside the third transverse partition wall and the oblique partition wall.

[0010] This utility model discloses a watertight door arrangement structure for the stairwells of a roll-on / roll-off ship. A diagonally arranged enclosure wall is installed between the stairwells, and the watertight door is mounted on this wall. The corner space between the stairwells serves as a buffer platform for entering the movable deck, ensuring that personnel will not fall after opening the door. This arrangement can be flexibly designed according to different stairwell layouts and spaces. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the watertight door arrangement structure in the stairwell of the roll-on / roll-off ship described in this utility model.

[0012] Among them, 3-watertight door, 4-movable deck, 11-first transverse bulkhead, 12-second transverse bulkhead, 13-first longitudinal bulkhead, 14-second longitudinal bulkhead, 15-third longitudinal bulkhead, 16-sloping bulkhead, 21-inner deck between stairways, 22-outer deck between stairways. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0014] like Figure 1 As shown, a watertight door arrangement structure for a ro-ro ship's stairwell includes a stairwell enclosure 1 and a stairwell deck 2. The stairwell enclosure divides the stairwell deck into an inner stairwell deck 21 and an outer stairwell deck 22. The watertight door 3 is located on a portion of the stairwell enclosure between the outer stairwell deck 22 and the inner stairwell deck 21. The outer stairwell deck 22 is a corner area of ​​the stairwell deck.

[0015] The stairwell enclosure includes a first transverse enclosure 11 and a second transverse enclosure 12 arranged in parallel, and a first longitudinal enclosure 13 and a second longitudinal enclosure 14 arranged in parallel. One end face of the first transverse enclosure 11 and one end face of the second transverse enclosure 12 are both located inside the inner surface of the first longitudinal enclosure 13, and the length of the first transverse enclosure 11 is less than the length of the second transverse enclosure 12. One end face of the first longitudinal enclosure 13 and one end face of the second longitudinal enclosure 14 are both located inside the inner surface of the second transverse enclosure 12, and the length of the second longitudinal enclosure 14 is less than the length of the first longitudinal enclosure 13. A stairwell deck partition wall connects the end of the transverse enclosure 11 away from the first longitudinal enclosure 13 and the end of the second longitudinal enclosure 14 away from the second transverse enclosure 12. The watertight door 3 is located on the stairwell deck partition wall. The stairwell deck partition wall includes a third longitudinal enclosure 15 and an oblique enclosure 16. One end of the third longitudinal enclosure 15 is connected to the first transverse enclosure 11, and the other end of the third longitudinal enclosure 15 is connected to the oblique enclosure 16. The watertight door 3 is located on the oblique enclosure 16. The outer deck 22 of the stairwell is located outside the third longitudinal enclosure 15 and the oblique enclosure 16.

[0016] Alternatively, the deck partition wall between the stairways includes a third transverse partition wall and an oblique partition wall 16. One end of the third transverse partition wall is connected to the second longitudinal partition wall 14, and the other end of the third transverse partition wall is connected to the oblique partition wall 16. The watertight door 3 is located on the oblique partition wall 16, and the outer deck 22 between the stairways is located outside the third transverse partition wall and the oblique partition wall 16.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A watertight door arrangement structure for the stairwell of a roll-on / roll-off ship, characterized in that, The system includes a stairwell enclosure and a stairwell deck. The stairwell enclosure divides the stairwell deck into an inner stairwell deck and an outer stairwell deck. A watertight door is located on a portion of the stairwell enclosure between the outer and inner stairwell decks. The stairwell enclosure includes a first transverse enclosure and a second transverse enclosure, as well as a first longitudinal enclosure and a second longitudinal enclosure, which are arranged in parallel. One end face of the first transverse enclosure and one end face of the second transverse enclosure are both located inside the inner surface of the first longitudinal enclosure, and the length of the first transverse enclosure is less than the length of the second transverse enclosure. One end face of the first longitudinal enclosure and one end face of the second longitudinal enclosure are both located inside the inner surface of the second transverse enclosure, and the length of the second longitudinal enclosure is less than the length of the first longitudinal enclosure. A stairwell deck dividing enclosure is connected between the end of the first transverse enclosure away from the first longitudinal enclosure and the end of the second longitudinal enclosure away from the second transverse enclosure. The watertight door is located on the stairwell deck dividing enclosure, and the outer stairwell deck is located outside the stairwell deck dividing enclosure.

2. The watertight door arrangement structure for the stairwell of a roll-on / roll-off ship according to claim 1, characterized in that, The outer deck between the stairways is a corner area of ​​the deck between the stairways.

3. The watertight door arrangement structure for the stairwell of a roll-on / roll-off ship according to claim 2, characterized in that, The deck partition wall between the stairways includes a third longitudinal wall and an oblique wall. One end of the third longitudinal wall is connected to the first transverse wall, and the other end of the third longitudinal wall is connected to the oblique wall. The watertight door is located on the oblique wall, and the outer deck of the stairway is located outside the third longitudinal wall and the oblique wall.

4. The watertight door arrangement structure for the stairwell of a roll-on / roll-off ship according to claim 2, characterized in that, The deck partition wall between the stairways includes a third transverse partition wall and an oblique partition wall. One end of the third transverse partition wall is connected to the second longitudinal partition wall, and the other end of the third transverse partition wall is connected to the oblique partition wall. The watertight door is located on the oblique partition wall, and the outer deck of the stairway is located outside the third transverse partition wall and the oblique partition wall.

Images