Telescopic trestle device for offshore oil platform

Abstract

The utility model discloses a telescopic trestle device for an offshore oil platform, relates to the technical field of offshore oil engineering equipment, and aims to solve the technical problem that the service life of a conventional telescopic trestle device is shortened due to the fact that the conventional telescopic trestle device is easy to overfatigue. The deck structure is composed of the main deck and the secondary deck, then the main deck and the secondary deck are connected through the buffer structure, and the butt joint groove, the butt joint end and the first spring in the buffer structure are matched, so that the main deck and the secondary deck can move to a certain degree; the butt joint groove and the butt joint end head are automatically reset under the action of the first spring, that is, the main deck and the secondary deck are reset, so that when the telescopic trestle stretches out, the secondary deck is connected with an external ship; the buffering structure between the main deck and the secondary deck can effectively relieve acting force generated in the distance changing process between the oil platform and the ship.

Description

Technical Field

[0001] This utility model relates to the field of marine oil engineering equipment technology, and more specifically, to a telescopic trestle device for marine oil platforms. Background Technology

[0002] In offshore oil exploration operations, it is necessary to build piers between oil platforms and supply ships, workboats, etc., to achieve safe and efficient transfer of personnel, materials and equipment.

[0003] A search revealed a Chinese utility model patent with publication number "CN221563375U", which discloses a telescopic trestle device for offshore oil platforms. Through its guide rails, main frame, and other structures, the trestle can extend and retract, forming a temporary connection with the drilling vessel to meet the work needs of personnel and pipelines. Furthermore, the installation position and angle can be flexibly adjusted according to the drilling vessel's location. It can extend and retract without additional mechanical equipment, is reusable, low-cost, and has relatively low operational safety risks.

[0004] While the aforementioned documents achieve telescopic connection and angle adjustment, the overall structure remains relatively fixed. When extended and connected to the ship, the distance between the oil platform and the ship frequently changes slightly due to factors such as waves. This change in distance generates corresponding forces, which the telescopic trestle struggles to mitigate. Consequently, these forces are directly applied to the trestle. Prolonged exposure to such an environment leads to high fatigue levels and shortens the overall service life of the trestle. Therefore, we propose a telescopic trestle device for offshore oil platforms. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a telescopic trestle device for offshore oil platforms to solve the technical problem that current telescopic trestle devices are prone to excessive fatigue, which leads to a shortened service life.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a telescopic pier device for offshore oil platforms, comprising a deck structure, the deck structure comprising a main deck, a secondary deck and a buffer structure, telescopic structures arranged on both sides of the main deck, the secondary deck located at the rear end of the main deck, and the buffer structure located between the secondary deck and the main deck;

[0007] The secondary deck includes a first L-shaped plate frame and a second L-shaped plate frame. The first L-shaped plate frame and the second L-shaped plate frame are engaged and connected vertically. The first L-shaped plate frame and the second L-shaped plate frame are combined to form a rectangular plate. An axial connector is arranged on one side inside the first L-shaped plate frame and the second L-shaped plate frame. The axial connector on the first L-shaped plate frame is connected to the second L-shaped plate frame, and the axial connector on the second L-shaped plate frame is connected to the first L-shaped plate frame. Second springs are arranged at the four corners between the first L-shaped plate frame and the second L-shaped plate frame.

[0008] The deck structure of this invention consists of a main deck and a secondary deck, which are connected by a buffer structure. The mating groove, mating end, and first spring in the buffer structure work together to allow for a certain degree of movement between the main deck and the secondary deck. Under the action of the first spring, the mating groove and mating end automatically reset, thus achieving the reset of the main deck and the secondary deck. Therefore, when the telescopic trestle extends and the secondary deck connects to the external vessel, the buffer structure between the main deck and the secondary deck effectively mitigates the forces generated during changes in distance between the oil platform and the vessel, preventing direct rigid force acting on the telescopic trestle and avoiding excessive fatigue that could shorten its service life. The secondary deck of this utility model is composed of a first L-shaped plate frame, a second L-shaped plate frame, a second spring, and an axial connector. The first L-shaped plate frame and the second L-shaped plate frame are connected vertically by the axial connector. Therefore, the first L-shaped plate frame and the second L-shaped plate frame can be stably connected with the cooperation of the axial connector. The first L-shaped plate frame and the second L-shaped plate frame can undergo a certain degree of axial torsion. The second spring can realize the reset of the first L-shaped plate frame and the second L-shaped plate frame. Therefore, the axial torsion of the first L-shaped plate frame and the second L-shaped plate frame can buffer the axial torque generated by the swaying between the oil platform and the ship, thereby further improving the protection of the telescopic trestle and extending its service life.

[0009] Preferably, protective frames are arranged on both sides and in the center of the top of the main deck and the first L-shaped plate frame, and the top of the deck structure is divided into pedestrian passages and pipeline passages by three sets of protective frames.

[0010] Preferably, the telescopic structure includes a channel steel and a guide rail. The channel steel is arranged on the main deck, and the guide rail has a protrusion on one side facing the channel steel, and the protrusion is located inside the channel steel.

[0011] Preferably, a limiting screw hole is provided at the top of the protrusion, and a limiting bolt is arranged at the top of the channel steel.

[0012] Preferably, the buffer structure includes a docking groove and a docking end. The docking groove is equally spaced on the side of the main deck facing the secondary deck. The docking end is arranged on the side of the second L-shaped plate frame facing the main deck. One end of the docking end is movably arranged inside the docking groove. A first spring is arranged between the docking end and the opposite side of the docking groove.

[0013] Preferably, the docking groove has sliding grooves on both sides inside, and a slider is slidably arranged inside the sliding groove, the slider being connected to the docking end.

[0014] Preferably, the top and bottom of the main deck are provided with mating grooves on the side of the docking groove facing away from the docking end, and the top and bottom of the docking end facing one end of the docking groove are provided with baffles that extend into the mating groove.

[0015] Preferably, a circular hole is provided in the center of one side of the first L-shaped plate frame and the second L-shaped plate frame. The axial connector includes a ball located inside the circular hole. An L-shaped connecting rod is arranged on the ball, and one end of the L-shaped connecting rod is connected to the corresponding first L-shaped plate frame or second L-shaped plate frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The deck structure of this utility model consists of a main deck and a secondary deck, which are connected by a buffer structure. The docking groove, docking end, and first spring in the buffer structure work together to allow a certain degree of movement between the main deck and the secondary deck. Under the action of the first spring, the docking groove and docking end are automatically reset, thus achieving the reset of the main deck and the secondary deck. Therefore, when the telescopic trestle extends and the secondary deck connects to the external ship, the buffer structure between the main deck and the secondary deck can effectively mitigate the forces generated during the change of distance between the oil platform and the ship, avoiding the direct rigid action of forces on the telescopic trestle, which would cause excessive fatigue and shorten its service life. This solves the technical problem that current telescopic trestle devices are prone to excessive fatigue, resulting in a shortened service life. Therefore, this utility model has the advantage of effectively mitigating external forces.

[0018] 2. The secondary deck of this utility model is composed of a first L-shaped plate frame, a second L-shaped plate frame, a second spring, and an axial connector. The first L-shaped plate frame and the second L-shaped plate frame are connected vertically by the axial connector. Therefore, the first L-shaped plate frame and the second L-shaped plate frame can be stably connected with the cooperation of the axial connector. The first L-shaped plate frame and the second L-shaped plate frame can undergo a certain degree of axial torsion. The second spring can realize the reset of the first L-shaped plate frame and the second L-shaped plate frame. Therefore, the axial torsion of the first L-shaped plate frame and the second L-shaped plate frame can buffer the axial torque generated by the swaying between the oil platform and the ship, thereby further improving the protection of the telescopic trestle and extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the shrinkage structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the extended structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the telescopic structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the deck structure of this utility model;

[0023] Figure 5 This is a schematic cross-sectional view of the deck structure of this utility model;

[0024] Figure 6 For the present utility model Figure 5 Enlarged diagram of point A in the middle.

[0025] Explanation of the labels in the diagram:

[0026] 1. Deck structure; 2. Telescopic structure; 201. Channel steel; 202. Guide rail; 203. Protrusion; 204. Limiting screw hole; 205. Limiting bolt; 3. Protective frame; 4. Main deck; 5. Secondary deck; 6. Buffer structure; 601. Docking groove; 602. Docking end; 603. First spring; 604. Slide groove; 605. Sliding block; 606. Mating groove; 607. Baffle; 7. First L-shaped plate frame; 8. Second L-shaped plate frame; 9. Second spring; 10. Axial connector; 1001. Round hole; 1002. Ball; 1003. L-shaped connecting rod. Detailed Implementation

[0027] like Figures 1 to 6As shown, this utility model relates to a telescopic trestle device for an offshore oil platform, including a deck structure 1. The deck structure 1 includes a main deck 4, a secondary deck 5, and a buffer structure 6. Telescopic structures 2 are arranged on both sides of the main deck 4. The secondary deck 5 is located at the rear end of the main deck 4. The buffer structure 6 is located between the secondary deck 5 and the main deck 4. The buffer structure 6 includes a docking groove 601 and a docking end 602. The docking groove 601 is equally spaced on the side of the main deck 4 facing the secondary deck 5. The docking end 602 is arranged on the side of the second L-shaped plate frame 8 facing the main deck 4. One end of the docking end 602 is movably arranged inside the docking groove 601. A first spring 603 is arranged between the docking end 602 and the opposite side of the docking groove 601.

[0028] The telescopic structure 2 is arranged on the oil platform. When it needs to be connected to the drilling ship, the deck structure 1 is pushed out, so that the deck structure 1 extends out of the oil platform, and then the secondary deck 5 connects with the drilling ship. At this time, the docking end 602 of the buffer structure 6 can move back and forth to a certain extent in the docking groove 601, so that the main deck 4 and the secondary deck 5 can move to a certain extent. Under the action of the first spring 603, the docking groove 601 and the docking end 602 are automatically reset, that is, the main deck 4 and the secondary deck 5 are reset. Therefore, when the telescopic bridge extends and the secondary deck 5 connects to the drilling ship, the buffer structure 6 between the main deck 4 and the secondary deck 5 can effectively mitigate the force generated during the change of distance between the oil platform and the ship, and avoid the force directly and rigidly acting on the telescopic bridge, which would cause the telescopic bridge to have excessive fatigue and shorten its service life.

[0029] Specifically, protective frames 3 are arranged on both sides and in the center of the top of the main deck 4 and the first L-shaped plate frame 7. The top of the deck structure 1 is divided into pedestrian passage and pipeline passage by three sets of protective frames 3. The protective frames 3 provide protection, and the pedestrian passage and pipeline passage facilitate separate passage for personnel and pipelines.

[0030] Furthermore, the telescopic structure 2 includes a channel steel 201 and a guide rail 202. The channel steel 201 is arranged on the main deck 4, and the guide rail 202 has a protrusion 203 on one side facing the channel steel 201, and the protrusion 203 is located inside the channel steel 201. A limiting screw hole 204 is opened on the top of the protrusion 203, and a limiting bolt 205 is arranged on the top of the channel steel 201. The guide rail 202 is arranged on the oil platform, and the channel steel 201 can slide on the protrusion 203, thereby realizing the telescopic effect of the deck structure 1. When the deck structure 1 is extended, the limiting bolt 205 is screwed into the corresponding limiting screw hole 204 to fix the deck structure 1.

[0031] Furthermore, sliding grooves 604 are provided on both sides inside the mating groove 601, and sliders 605 are slidably arranged inside the sliding grooves 604. The sliders 605 are connected to the mating end 602. With the cooperation of the sliding grooves 604 and the sliders 605, the mating end 602 and the mating groove 601 can be horizontally slidably installed.

[0032] It is worth noting that the top and bottom of the main deck 4 are provided with mating grooves 606 on the side of the docking groove 601 facing away from the docking end 602. The top and bottom of the docking end 602 facing the docking groove 601 are provided with baffles 607, and the baffles 607 extend into the mating groove 606. The baffles 607 are used to cover the docking groove 601 and to hide and protect the first spring 603. The mating groove 606 is used to cooperate with the movement of the baffles 607.

[0033] In an embodiment of this utility model, the secondary deck 5 includes a first L-shaped plate frame 7 and a second L-shaped plate frame 8. The first L-shaped plate frame 7 and the second L-shaped plate frame 8 are engaged and connected vertically. The first L-shaped plate frame 7 and the second L-shaped plate frame 8 are combined to form a rectangular plate. An axial connector 10 is arranged on one side inside the first L-shaped plate frame 7 and the second L-shaped plate frame 8. The axial connector 10 on the first L-shaped plate frame 7 is connected to the second L-shaped plate frame 8. The axial connector 10 on the second L-shaped plate frame 8 is connected to the first L-shaped plate frame 7. Second springs 9 are arranged at the four corners between the first L-shaped plate frame 7 and the second L-shaped plate frame 8.

[0034] The first L-shaped plate frame 7 and the second L-shaped plate frame 8 can be stably connected with the axial connector 10 without detachment. The first L-shaped plate frame 7 and the second L-shaped plate frame 8 can undergo a certain degree of axial torsion, and the second spring 9 can realize the reset of the first L-shaped plate frame 7 and the second L-shaped plate frame 8. Therefore, the axial torsion of the first L-shaped plate frame 7 and the second L-shaped plate frame 8 can buffer the axial torque generated by the swaying between the oil platform and the ship, thereby further improving the protection of the telescopic trestle and extending its service life.

[0035] Specifically, a circular hole 1001 is provided in the center of one side of the first L-shaped plate frame 7 and the second L-shaped plate frame 8. The axial connector 10 includes a ball 1002, which is located inside the circular hole 1001. An L-shaped connecting rod 1003 is arranged on the ball 1002, and one end of the L-shaped connecting rod 1003 is connected to the corresponding first L-shaped plate frame 7 or second L-shaped plate frame 8. The circular hole 1001 and the ball 1002 can cooperate to achieve axial rotation and interlocking, ensuring that the first L-shaped plate frame 7 or the second L-shaped plate frame 8 can be stably connected and can be axially twisted.

[0036] Working Principle: This embodiment provides a telescopic gantry device for offshore oil platforms. First, the telescopic structure 2 is arranged on the oil platform. When it needs to be connected to a drilling vessel, the deck structure 1 is pushed out, so that the deck structure 1 extends out of the oil platform. Then, the secondary deck 5 is connected to the drilling vessel. At this time, the docking end 602 of the buffer structure 6 can move back and forth to a certain extent in the docking groove 601, so that the main deck 4 and the secondary deck 5 can move to a certain extent. Under the action of the first spring 603, the docking groove 601 and the docking end 602 are automatically reset, that is, the main deck 4 and the secondary deck 5 are reset. Therefore, when the telescopic gantry extends and the secondary deck 5 is connected to the drilling vessel, the buffer structure 6 between the main deck 4 and the secondary deck 5 can effectively mitigate the force generated during the change of distance between the oil platform and the ship, and avoid the force directly and rigidly acting on the telescopic gantry, which would cause the telescopic gantry to have excessive fatigue and shorten its service life.

[0037] Secondly, the first L-shaped plate frame 7 and the second L-shaped plate frame 8 can be stably connected with the axial connector 10 without detachment. Furthermore, the first L-shaped plate frame 7 and the second L-shaped plate frame 8 can undergo a certain degree of axial torsion, and the second spring 9 can reset the first L-shaped plate frame 7 and the second L-shaped plate frame 8. Therefore, the axial torsion of the first L-shaped plate frame 7 and the second L-shaped plate frame 8 can buffer the axial torque generated by the swaying between the oil platform and the ship, thereby further improving the protection of the telescopic trestle and extending its service life.

[0038] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A telescopic gantry device for offshore oil platforms, characterized in that, The system includes a deck structure (1), which includes a main deck (4), a secondary deck (5) and a buffer structure (6). The main deck (4) has telescopic structures (2) arranged on both sides. The secondary deck (5) is located at the rear end of the main deck (4). The buffer structure (6) is located between the secondary deck (5) and the main deck (4). The secondary deck (5) includes a first L-shaped plate frame (7) and a second L-shaped plate frame (8). The first L-shaped plate frame (7) and the second L-shaped plate frame (8) are engaged and connected vertically. The first L-shaped plate frame (7) and the second L-shaped plate frame (8) are combined to form a rectangular plate. An axial connector (10) is arranged on one side inside the first L-shaped plate frame (7) and the second L-shaped plate frame (8). The axial connector (10) on the first L-shaped plate frame (7) is connected to the second L-shaped plate frame (8). The axial connector (10) on the second L-shaped plate frame (8) is connected to the first L-shaped plate frame (7). Second springs (9) are arranged at the four corners between the first L-shaped plate frame (7) and the second L-shaped plate frame (8).

2. The telescopic gantry device for offshore oil platforms according to claim 1, characterized in that, The main deck (4) and the first L-shaped plate frame (7) are equipped with protective frames (3) on both sides and in the center of the top. The top of the deck structure (1) is divided into pedestrian passage and pipeline passage by three sets of protective frames (3).

3. A telescopic gantry device for offshore oil platforms according to claim 1, characterized in that, The telescopic structure (2) includes a channel steel (201) and a guide rail (202). The channel steel (201) is arranged on the main deck (4). The guide rail (202) has a protrusion (203) on one side facing the channel steel (201), and the protrusion (203) is located inside the channel steel (201).

4. A telescopic gantry device for offshore oil platforms according to claim 3, characterized in that, The protrusion (203) has a limiting screw hole (204) at its top, and the channel steel (201) has a limiting bolt (205) at its top.

5. A telescopic gantry device for offshore oil platforms according to claim 1, characterized in that, The buffer structure (6) includes a docking groove (601) and a docking end (602). The docking groove (601) is equally spaced on the side of the main deck (4) facing the secondary deck (5). The docking end (602) is arranged on the side of the second L-shaped plate frame (8) facing the main deck (4). One end of the docking end (602) is movably arranged inside the docking groove (601). A first spring (603) is arranged between the docking end (602) and the opposite side of the docking groove (601).

6. A telescopic gantry device for offshore oil platforms according to claim 5, characterized in that, The docking groove (601) has sliding grooves (604) on both sides inside, and a slider (605) is slidably arranged inside the sliding groove (604), and the slider (605) is connected to the docking end (602).

7. A telescopic gantry device for offshore oil platforms according to claim 5, characterized in that, The top and bottom of the main deck (4) are provided with mating grooves (606) on the side of the docking groove (601) facing away from the docking end (602). The top and bottom of the docking end (602) facing the docking groove (601) are provided with baffles (607), and the baffles (607) extend into the mating groove (606).

8. A telescopic gantry device for offshore oil platforms according to claim 1, characterized in that, The first L-shaped plate frame (7) and the second L-shaped plate frame (8) have a circular hole (1001) in the center of one side. The axial connector (10) includes a ball (1002) located inside the circular hole (1001). An L-shaped connecting rod (1003) is arranged on the ball (1002), and one end of the L-shaped connecting rod (1003) is connected to the corresponding first L-shaped plate frame (7) or second L-shaped plate frame (8).

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