Portable bulwark door for ship

Abstract

The invention provides a light marine bulwark door, and relates to the technical field of ocean engineering, the marine bulwark door is adaptively mounted on an obliquely arranged bulwark and comprises double bulwark doors, each bulwark door is hinged to the bulwark, each bulwark door comprises an obliquely arranged door plate, and the top end and the bottom end of each door plate are arranged in a state of obliquely extending towards the outside of a ship; a flanged plate is fixedly arranged on the side edge, close to the bulwark, of each door plate, and the flanged plates are hinged to the adjacent bulwark. The bulwark door is easy to manufacture and convenient to operate, the flanged plates are arranged on the side edges of the door plates, the flanged plates are hinged to the connecting plates fixedly welded to the bulwark, meanwhile, the inclination angle of the bulwark door and the inclination angle of the bulwark are kept consistent, when the bulwark door is horizontally opened, opening and closing of the bulwark door are kept at the same height all the time, and the bulwark door is not prone to falling off. The bulwark door and the bulwark are more harmonious and attractive in connection, and equipment throwing is more convenient.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and more specifically, to lightweight marine bulwark doors. Background Technology

[0002] As a key opening structure on the side of a ship, the bulwark door is installed on the bulwark and primarily serves the core function of connecting the ship's internal and external spaces. Buoyancy doors have multiple functions in ship operations: firstly, they serve as access points for personnel boarding and disembarking; after the ship berths at the dock, a boarding ladder needs to be erected between the ship and shore, and opening the bulwark door creates a passageway for personnel; secondly, they serve as access points for the deployment and retrieval of large equipment; and thirdly, they serve as dedicated passageways for special operations. Currently, bulwark doors are generally perpendicular to the deck, but many bulwarks are now inclined, leading to irregularities in the alignment between the bulwark and the door, and even gaps. To accommodate the inclined bulwarks, current bulwark doors are excessively thick, which is not only costly but also inconvenient to operate. The quality of the bulwark door directly affects the efficiency and safety of ship operations. Summary of the Invention

[0003] The purpose of this invention is to provide a lightweight marine bulwark door to solve one or more problems mentioned in the background art.

[0004] To achieve the above objectives, a lightweight marine bulwark door is provided. The marine bulwark door is adapted to be installed on an inclined bulwark, including a double-opening bulwark door. Each bulwark door is hinged to the bulwark. Each bulwark door includes an inclined door panel. The top and bottom of the door panel are arranged in an inclined manner extending outward from the ship. A folded edge plate is fixedly provided on the side of each door panel near the bulwark. The folded edge plate is hinged to the adjacent bulwark.

[0005] As a preferred embodiment, each door panel includes two side panels and a panel that is inclined between the two side panels, the panel being inclined at the same angle as the door panel, and the panel being fixedly welded to the two side panels.

[0006] As a preferred feasible method, the side plate is a right trapezoidal structure, and the inclination angle of the hypotenuse of the right trapezoid is the same as the inclination angle of the bulwark.

[0007] As a preferred embodiment, a support plate for supporting the panel is fixedly welded to one side of the panel near the interior of the ship. The support plate includes several angle steels arranged in a horizontal direction, each angle steel being fixedly welded to the panel.

[0008] As a preferred feasible method, multiple longitudinally arranged reinforcing steels are fixedly welded to one side of the panel near the interior of the ship. The reinforcing steels are multiple flat steels arranged between every two angle steels and welded longitudinally. Thus, the flat steels are longitudinally welded to the rear side of the panel for reinforcement.

[0009] As a preferred feasible method, the bulwark and the folded plate are hinged together. Each side plate has a folded plate welded to the side closest to the ship's interior, which is set towards the angle steel. Each folded plate is perpendicular to the side plate, and the folded length of the folded plate is sufficient to weld a second hinge plate.

[0010] As a preferred embodiment, the hinge includes a first hinge plate and a second hinge plate. The first hinge plate is fixedly installed on the bulwark, and the second hinge plate is fixedly installed on the folded edge plate. Two hinge links and a hinge shaft are fixedly installed on the second hinge plate, and the two hinge links are sleeved on the hinge shaft.

[0011] A fixing seat is provided on the first hinge plate. The fixing seat is sleeved on the hinge shaft and located between the two hinge links.

[0012] As a preferred embodiment, the angle steel is L-shaped, comprising a horizontal plate and a vertical plate arranged horizontally. One side of the horizontal plate is fixedly welded to the panel, and the other side of the horizontal plate is fixedly welded to the vertical plate. The included angle between the horizontal plate and the vertical plate is 90 degrees.

[0013] As a preferred implementation method, the double-opening bulwark door includes a port bulwark door and a starboard bulwark door that cooperates with the port bulwark door, and the port bulwark door and the starboard bulwark door are connected by a latch.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention is simple to manufacture and easy to operate. A folded edge plate is set on the side of each door panel. The folded edge plate and the connecting plate fixedly welded to the bulwark are hinged together, which reduces the weight of the bulwark door. At the same time, the tilt angle between the bulwark door and the bulwark is kept consistent. When the bulwark door is opened horizontally, the opening and closing of the bulwark door is always maintained at the same height. The connection between the bulwark door and the bulwark is more harmonious and beautiful, and the equipment is more convenient to drop off. Attached Figure Description

[0016] Figure 1 A top view of the lightweight marine bulwark door provided by the present invention;

[0017] Figure 2 A side cross-sectional view of the lightweight marine bulwark door provided by the present invention;

[0018] Figure 3 A schematic diagram of the hinge structure in the lightweight marine bulwark door provided by the present invention;

[0019] Figure 4 A three-dimensional structural diagram of the lightweight marine bulwark door provided by the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described 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.

[0021] It should be noted that all uses of "first", "second", "third" and "fourth" in the embodiments of the present invention are for the purpose of distinguishing two entities with the same name but different names or different parameters. It is clear that "first", "second", "third" and "fourth" are only for the convenience of expression and should not be construed as limiting the embodiments of the present invention. Subsequent embodiments will not explain this in detail.

[0022] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0023] like Figure 1 As shown, a lightweight marine bulwark door is adapted for installation on an inclined bulwark. It includes a double-leaf bulwark door, comprising a port bulwark door and a starboard bulwark door that cooperates with the port bulwark door. The port and starboard bulwark doors are connected by a latch 7. In this embodiment, a baffle 8 is welded to the front of the port and starboard bulwark doors, on their adjacent sides. Only one baffle needs to be welded, located between either of the two bulwark doors.

[0024] Each bulwark door is hinged to bulwark 1. Each bulwark door includes an inclined door panel 2, which extends outward from top to bottom. A folded edge plate 3 is fixedly installed on the side of each door panel 2 closest to bulwark 1, and the folded edge plate 3 is hinged to the adjacent bulwark 1. Specifically, each door panel 2 includes two side panels 22 and an inclined panel 21 located between the two side panels. The inclination angle of the panel 21 is the same as the inclination angle of the door panel, and the panel 21 is fixedly welded to the two side panels 22. The side panels 22 are right-angled trapezoidal structures, and the inclination angle of the hypotenuse of the right-angled trapezoid is the same as the inclination angle of bulwark 1. A support plate for supporting the panel is fixedly welded to the side of the panel 21 closest to the ship's interior. The support plate includes several angle steels 4 arranged horizontally, and each angle steel 4 is fixedly welded to the panel 21. Multiple longitudinally arranged reinforcing steels 5 are fixedly welded to the side of the panel 21 closest to the ship's interior. The reinforcing steels 5 are multiple flat steels arranged between every two angle steels 4 and welded longitudinally. In this embodiment, as shown in the figure, there are three angle steels: one at the top of the panel, one in the middle of the panel, and one at the bottom of the panel. There are two flat steels running from the top to the bottom of the panel.

[0025] It should be noted that because the existing doors are already quite thick and heavy, they are inconvenient to push and pull. This structure adopts a panel and side panel structure, and is equipped with folded edge plates, which prevents the door from being too thick and inconvenient to push and pull, realizes the hinge connection between the bulwark door and the bulwark, and reduces the weight of the door.

[0026] Therefore, this invention is simple to manufacture and easy to operate. The inclination angle between the bulwark door and the bulwark is consistent. The bulwark door opens horizontally. The opening and closing of the bulwark door is always maintained at the same height. The connection between the bulwark door and the bulwark is more harmonious and aesthetically pleasing, and the equipment is more convenient to drop off.

[0027] It should be noted that the bulwark 1 and the folded plate 3 are hinged by a hinge 6. Each side plate 22 has a folded plate 3 welded to the side closest to the ship's interior, oriented towards the angle steel. Each folded plate 3 is perpendicular to the side plate 22, and the folded length of the folded plate 3 is sufficient for welding the hinge. The hinge 6 includes a first hinge plate 61 and a second hinge plate 62. The first hinge plate 61 is fixedly mounted on the bulwark 1 by bolts, and the second hinge plate 62 is fixedly welded to the folded plate 3. Two hinge connecting rods 63 and a hinge shaft 64 are fixedly mounted on the second hinge plate 62, and the two hinge connecting rods 63 are sleeved on the hinge shaft 64. A fixing seat 65 is provided on the first hinge plate 61, and the fixing seat 65 is sleeved on the hinge shaft 64 and located between the two hinge connecting rods 63. Washers 66 are provided between the two hinge connecting rods 63 and the fixing seat. In this embodiment, a connecting plate is fixedly welded to the side of the bulwark closest to the ship's interior, and the first hinge plate 61 is fixed to the connecting plate.

[0028] As shown in the figure, the angle steel 4 is L-shaped, including a horizontal plate 41 and a vertical plate 42 arranged horizontally. One side of the horizontal plate 41 is fixedly welded to the panel 21, and the other side of the horizontal plate 41 is fixedly welded to the vertical plate 42. The included angle between the horizontal plate 41 and the vertical plate 42 is 90 degrees.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight marine bulwark door, characterized in that, The hull door is adapted to be installed on the inclined hull and includes a double hull door. Each hull door is hinged to the hull (1). Each hull door includes an inclined door panel (2). The top and bottom of the door panel (2) are arranged in an inclined state extending outward from the ship. Each door panel (2) has a folded edge plate (3) fixedly installed on the side of the hull (1) near the hull (1). The folded edge plate (3) is hinged to the adjacent hull (1).

2. The lightweight marine bulwark door according to claim 1, characterized in that, Each of the door panels (2) includes two side panels (22) and a panel (21) inclined between the two side panels. The inclined angle of the panel (21) is the same as that of the door panel. The panel (21) is fixedly welded to the two side panels (22).

3. The lightweight marine bulwark door according to claim 2, characterized in that, The side plate (22) is a right trapezoidal structure, and the inclination angle of the hypotenuse of the right trapezoid is the same as the inclination angle of the bulwark (1).

4. The lightweight marine bulwark door according to claim 2, characterized in that, The panel (21) has a support plate fixedly welded to one side near the interior of the ship. The support plate includes several angle steels (4) arranged in a horizontal direction, and each angle steel (4) is fixedly welded to the panel (21).

5. The lightweight marine bulwark door according to claim 4, characterized in that a plurality of longitudinally arranged reinforcing steels (5) are fixedly welded to one side of the panel (21) near the interior of the ship, wherein the reinforcing steels (5) are a plurality of flat steels arranged between every two angle steels (4) and welded longitudinally.

6. The lightweight marine bulwark door according to claim 2, characterized in that the bulwark (1) and the folded edge plate (3) are hinged by a hinge (6), and each side plate (22) is welded with the folded edge plate (3) arranged in the direction of the angle steel on the side closest to the ship, each folded edge plate (3) is perpendicular to the side plate (22), and the folded edge length of the folded edge plate (3) is sufficient to weld the hinge.

7. The lightweight marine bulwark door according to claim 6, characterized in that, The hinge (6) includes a first hinge plate (61) and a second hinge plate (62). The first hinge plate (61) is fixedly installed on the bulwark (1), and the second hinge plate (62) is fixedly installed on the folded edge plate (3). Two hinge connecting rods (63) and a hinge shaft (64) are fixedly provided on the second hinge plate (62), and the two hinge connecting rods (63) are sleeved on the hinge shaft (64). A fixing seat (65) is provided on the first hinge plate (61). The fixing seat (65) is sleeved on the hinge shaft (64) and located between the two hinge links (63).

8. The lightweight marine bulwark door according to claim 5, characterized in that, The angle steel (4) is L-shaped and includes a horizontal plate (41) and a vertical plate (42) arranged horizontally. One side of the horizontal plate (41) is fixedly welded to the panel (21), and the other side of the horizontal plate (41) is fixedly welded to the vertical plate (42). The included angle between the horizontal plate (41) and the vertical plate (42) is 90 degrees.

9. The lightweight marine bulwark door according to claim 5, characterized in that, The double-opening bulwark door includes a port bulwark door and a starboard bulwark door that cooperates with the port bulwark door. The port bulwark door and the starboard bulwark door are connected by a latch (7).

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