Accommodation ladder for marine fixed oil platform

Abstract

The utility model provides a gangway ladder for fixing an oil platform on the sea. The gangway ladder comprises a gangway ladder body, a bottom pedal, a protective plate, an anti-impact structure, two buffer structures, two elastic fixing structures and a plurality of mounting structures, the bottom pedal is arranged at the bottom of the gangway ladder body, and the multiple installation structures are evenly arranged on the side portion of the gangway ladder body. The protection plate is arranged below the bottom pedal, an anti-impact structure is arranged on the lower end face of the protection plate, and the upper end face of the protection plate is connected with the bottom pedal through two elastic fixing structures. According to the gangway ladder for fixing the oil platform in the ocean, the problem that the impact force is too large when the gangway ladder is in contact with a ship due to the fact that a buffering device at the bottom of the gangway ladder in the prior art is prone to losing efficacy due to aging or insufficient maintenance is solved.

Description

Technical Field

[0001] This utility model belongs to the field of marine engineering technology, and in particular relates to a gangway for fixed offshore oil platforms. Background Technology

[0002] Gangways are primarily used for the safe movement of personnel between platforms and ships, especially in complex sea conditions, providing a stable passage. They also facilitate the transport of light cargo or equipment from ships to platforms. In certain situations, gangways can also serve as emergency evacuation routes, ensuring the rapid transfer of personnel in dangerous circumstances. However, the cushioning devices at the bottom of gangways are prone to failure due to aging or insufficient maintenance, potentially leading to excessive impact forces upon contact with the ship, which could damage the gangway or the hull. Summary of the Invention

[0003] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A gangway for a fixed offshore oil platform includes a gangway body, a bottom step, a protective plate, an impact-resistant structure, two buffer structures, two elastic fixing structures, and multiple installation structures.

[0006] The bottom step is located at the bottom of the gangway body, and multiple mounting structures are evenly arranged on the side of the gangway body;

[0007] The protective plate is located below the bottom pedal, and the lower end face of the protective plate is provided with the impact-resistant structure. The upper end face of the protective plate is connected to the bottom pedal through two elastic fixing structures.

[0008] The two buffer structures are symmetrically arranged between the protective plate and the bottom pedal;

[0009] The elastic fixing structure includes a fixing plate and two elastic devices. The fixing plate has a C-shaped structure with its opening facing upwards. Both the left and right ends of the fixing plate have curved edges for positioning the bottom pedal. The curved edges are connected to the end of the bottom pedal through one of the elastic devices. The middle part of the fixing plate is detachably connected to the upper surface of the protective plate. The bottom of the buffer structure is set on the fixing plate, and the upper part of the buffer structure abuts against the bottom pedal.

[0010] Furthermore, the elastic device includes a connecting screw, a nut, and two buffer springs. The connecting screw passes through the bend and is threadedly connected to the bottom pedal. The nut and the two buffer springs are both mounted on the connecting screw. The two buffer springs are symmetrically arranged on the upper and lower sides of the bend, and the nut is mounted on the top of the connecting screw.

[0011] Furthermore, the buffer structure includes multiple hydraulic rods, which are evenly arranged on the inner end face of the fixed plate.

[0012] Furthermore, the impact-resistant structure includes multiple buffer blocks, which are evenly arranged on the lower end surface of the protective plate, and the buffer blocks are strip-shaped.

[0013] Furthermore, the bottom pedal has side plates for protection on both the left and right sides of its upper surface.

[0014] Furthermore, the upper surface of the bottom pedal is provided with an anti-slip plate.

[0015] Furthermore, the hydraulic rod, connecting screw, nut, two buffer springs, and the outer surface of the fixing plate are all provided with anti-corrosion coating.

[0016] Compared with existing technologies, the gangway for fixed offshore oil platforms described in this utility model has the following advantages:

[0017] 1. The flexible fixing structure, through buffer springs and elastic connections, effectively absorbs and disperses the impact force generated by ship or ocean waves on the bottom of the gangway, avoiding direct stress concentration caused by rigid connections. The combination of the bent edge and the buffer springs gives the entire structure a certain degree of elasticity. When impacted, the buffer springs can absorb the impact energy through deformation, thereby protecting the gangway body, protective plates, and bottom steps from damage. The C-shaped fixing plate in the flexible fixing structure can firmly clamp the bottom steps and has a certain degree of elastic adjustment capability, ensuring the stability of the gangway under various complex sea conditions. The symmetrically arranged buffer springs can provide elastic support under the action of forces in different directions, giving the structure seismic resistance and anti-overturning capability.

[0018] 2. The buffer structure, through multiple hydraulic rods, absorbs the impact force generated when the ship contacts the bottom of the gangway, avoiding direct damage from a rigid collision. The hydraulic rods disperse and gradually attenuate the impact force through the flow of hydraulic oil, thereby reducing the destructive effect of the impact energy on the gangway and the hull.

[0019] 3. The protective plate, through its own strength and elasticity, works in conjunction with the buffer structure and elastic fixing structure to effectively disperse external impacts and prevent direct damage to the bottom of the gangway. The impact-resistant structure (buffer rubber block) set on the lower end face of the protective plate further enhances its impact resistance, effectively absorbing the energy generated when the ship comes into contact with the gangway, reducing the risk of impact damage. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of a gangway for a fixed offshore oil platform according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the elastic fixing structure described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the elastic device structure described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the buffer structure described in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the impact-resistant structure described in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 101. Gangway body; 201. Installation structure; 301. Bottom step; 302. Anti-slip plate; 303. Side plate; 400. Protective plate; 500. Fixing plate; 501. Hydraulic rod; 502. Buffer rubber block; 600. Elastic device; 601. Connecting screw; 602. Buffer spring. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] A gangway for fixed offshore oil platforms, such as Figure 1 As shown, the system includes a gangway body 101, a bottom step 301, a protective plate 400, an impact-resistant structure, two buffer structures, two elastic fixing structures, and multiple mounting structures 201. The bottom step 301 is located at the bottom of the gangway body 101, and the multiple mounting structures 201 are evenly arranged on the side of the gangway body 101. The protective plate 400 is located below the bottom step 301, and the lower end face of the protective plate 400 is provided with an impact-resistant structure. The upper end face of the protective plate 400 is connected to the bottom step 301 through two elastic fixing structures. The two buffer structures are symmetrically arranged between the protective plate 400 and the bottom step 301. In this embodiment, the mounting structure 201 is an L-shaped mounting plate.

[0033] like Figure 2As shown, the elastic fixing structure includes a fixing plate 500 and two elastic devices 600. The fixing plate 500 has a C-shaped structure with its opening facing upwards. Both ends of the fixing plate 500 have curved edges for positioning the bottom step 301. These curved edges are connected to the ends of the bottom step 301 via an elastic device 600. The middle part of the fixing plate 500 is detachably connected to the upper surface of the protective plate 400. The bottom of the buffer structure is mounted on the fixing plate 500, and the upper part of the buffer structure abuts against the bottom step 301. The elastic fixing structure, through the buffer spring 602 and elastic connection, can effectively absorb and disperse the impact force generated by ship or ocean waves on the bottom of the gangway, avoiding direct stress concentration caused by rigid connections. The cooperation between the curved edges and the buffer spring 602 gives the entire structure a certain elastic space. When subjected to impact, the buffer spring 602 can absorb the impact energy through deformation, thereby protecting the gangway body 101, the protective plate 400, and the bottom step 301 from damage. The C-shaped fixing plate 500 in the elastic fixing structure can firmly clamp the bottom step 301, while also having a certain degree of elastic adjustment capability, ensuring the stability of the gangway under various complex sea conditions. The symmetrically arranged buffer springs 602 can provide elastic support under the action of forces in different directions, giving the structure earthquake resistance and anti-overturning capability.

[0034] like Figure 3 As shown, the elastic device 600 includes a connecting screw 601, a nut, and two buffer springs 602. The connecting screw 601 passes through the bend and is threadedly connected to the bottom pedal 301. The nut and the two buffer springs 602 are both mounted on the connecting screw 601. The two buffer springs 602 are symmetrically arranged on the upper and lower sides of the bend, and the nut is mounted on the top of the connecting screw 601.

[0035] like Figure 4 As shown, the buffer structure includes multiple hydraulic rods 501, which are evenly arranged on the inner end face of the fixed plate 500. Through these hydraulic rods 501, the buffer structure absorbs the impact force generated when the ship contacts the bottom of the gangway, preventing direct damage from a rigid collision. The hydraulic rods 501 disperse and gradually attenuate the impact force through the flow of hydraulic oil, thereby reducing the destructive effect of the impact energy on the gangway and the hull.

[0036] like Figure 5 As shown, the impact-resistant structure includes multiple buffer rubber blocks 502, which are evenly arranged on the lower end face of the protective plate 400. Each buffer rubber block 502 has a strip-shaped structure. Through its own strength and elasticity, the protective plate 400, in conjunction with the buffer structure and elastic fixing structure, can effectively disperse external impacts and prevent direct damage to the bottom of the gangway. The impact-resistant structure (buffer rubber blocks 502) on the lower end face of the protective plate 400 further enhances its impact resistance, effectively absorbing the energy generated when the ship contacts the gangway, reducing the risk of impact damage.

[0037] In this embodiment, the bottom pedal 301 has protective side plates 303 on both the left and right sides of its upper surface. The bottom pedal 301 also has an anti-slip plate 302 on its upper surface. The hydraulic rod 501, connecting screw 601, nut, two buffer springs 602, and the outer surface of the fixing plate 500 are all coated with an anti-corrosion coating.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gangway for a fixed offshore oil platform, characterized in that: It includes the gangway body (101), bottom step (301), protective plate (400), impact-resistant structure, two buffer structures, two elastic fixing structures and multiple installation structures (201); The bottom step (301) is located at the bottom of the gangway body (101), and a plurality of the mounting structures (201) are evenly arranged on the side of the gangway body (101); The protective plate (400) is disposed below the bottom pedal (301), the lower end face of the protective plate (400) is provided with the anti-impact structure, and the upper end face of the protective plate (400) is connected to the bottom pedal (301) through two elastic fixing structures. The two buffer structures are symmetrically arranged between the protective plate (400) and the bottom pedal (301); The elastic fixing structure includes a fixing plate (500) and two elastic devices (600). The fixing plate (500) has a C-shaped structure with its opening facing upward. Both the left and right ends of the fixing plate (500) have curved edges for positioning the bottom pedal (301). The curved edges are connected to the ends of the bottom pedal (301) through one of the elastic devices (600). The middle part of the fixing plate (500) is detachably connected to the upper end face of the protective plate (400). The bottom of the buffer structure is set on the fixing plate (500), and the upper part of the buffer structure abuts against the bottom pedal (301).

2. A gangway for a fixed offshore oil platform according to claim 1, characterized in that: The elastic device (600) includes a connecting screw (601), a nut, and two buffer springs (602). The connecting screw (601) passes through the bend and is threadedly connected to the bottom pedal (301). The nut and the two buffer springs (602) are both disposed on the connecting screw (601). The two buffer springs (602) are symmetrically disposed on the upper and lower sides of the bend. The nut is disposed on the top of the connecting screw (601).

3. A gangway for a fixed offshore oil platform according to claim 2, characterized in that: The buffer structure includes multiple hydraulic rods (501), which are evenly arranged on the inner end face of the fixed plate (500).

4. A gangway for a fixed offshore oil platform according to claim 1, characterized in that: The impact-resistant structure includes multiple buffer blocks (502), which are evenly arranged on the lower end face of the protective plate (400). The buffer blocks (502) are strip-shaped.

5. A gangway for a fixed offshore oil platform according to any one of claims 1-4, characterized in that: The bottom pedal (301) has side plates (303) for protection on both the left and right sides of its upper surface.

6. A gangway for a fixed offshore oil platform according to claim 5, characterized in that: The upper surface of the bottom pedal (301) is provided with an anti-slip plate (302).

7. A gangway for a fixed offshore oil platform according to claim 3, characterized in that: The outer surfaces of the hydraulic rod (501), connecting screw (601), nut, two buffer springs (602), and fixing plate (500) are all coated with anti-corrosion coating.

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