Steel structure jacket for large offshore structure

Abstract

The invention relates to the technical field of offshore construction, in particular to a steel structure jacket for an offshore large structure, which comprises a jacket, a mounting frame is fixedly mounted on the jacket, a mounting plate is arranged on the mounting frame, and a buffer component capable of reducing impact force during collision is mounted on the mounting plate. The mounting plate is provided with a dismounting and mounting assembly facilitating dismounting and mounting of the mounting plate. When a boat collides with the guide pipe frame, a connecting frame drives a first connecting cylinder to slide and compress a first buffer spring for preliminary buffering, meanwhile, a connecting column rotates to enable the connecting frame to incline, the direction of the boat is changed through cooperation with a rotating roller, the boat moves towards the side face of the guide pipe frame, collision force is further reduced, and damage to the guide pipe frame caused by collision is effectively reduced. Safe and stable operation is ensured; and after the collision is finished, the first buffer spring rebounds, and the second connecting cylinder, the sliding cover and the second buffer spring assist the connecting frame to reset so as to cope with the next collision.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore construction, in particular to a steel structure jacket for large offshore structures. Background Art

[0002] Steel jackets, used in large offshore structures, are a common and important feature of marine engineering, playing a key role in offshore oil and gas exploration, development, and production. Typically constructed from high-strength steel, jackets offer lightweight, high strength, and corrosion resistance. Their base is firmly connected to the seabed, providing solid support for the entire offshore platform, while their upper portion is used to mount various working devices and equipment.

[0003] When inspecting and maintaining an offshore platform, or when personnel need to board the platform to conduct operations, they often use small boats to access the jacket. However, due to the varying skill levels of operators, improper operation can occur. Furthermore, the complex and unpredictable offshore environment, such as strong winds and high waves, can easily lead to collisions between the small boat and the jacket. Such collisions can cause varying degrees of damage to the jacket, compromising its structural integrity and stability, and threatening the safe operation of the entire offshore platform.

[0004] In order to reduce the damage caused by collision between small boats and jackets and ensure the safe and stable operation of jackets, we propose a steel jacket for large offshore structures. Summary of the Invention

[0005] The purpose of the present invention is to provide a steel structure jacket for large offshore structures. The buffer assembly provided on the mounting frame can reduce the impact force in the event of a collision. The tilting connecting frame can convert a head-on collision into a side collision, further reducing the impact of the collision on the structure, reducing the damage caused by the collision between a small boat and the jacket, and ensuring the safe and stable operation of the jacket.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A steel structure jacket for a large offshore structure, comprising a jacket, a mounting frame fixedly mounted on the jacket, a mounting plate provided on the mounting frame, a buffer assembly mounted on the mounting plate for reducing impact force in the event of a collision, and a disassembly assembly mounted on the mounting plate for facilitating disassembly of the mounting plate; The buffer assembly includes a mounting tube, which is fixedly connected to the front side of the mounting plate, and the inner wall of the mounting tube is slidably connected to the first connecting tube, and the inner wall of the first connecting tube is fixedly installed with a first buffer spring, and the end of the first buffer spring away from the first connecting tube is fixedly connected to the mounting plate, and a connecting frame is provided on the side of the mounting plate away from the mounting frame, and a connecting column is fixedly installed on the side of the connecting frame close to the mounting plate, and a connecting sleeve is fixedly connected to the end of the first connecting tube close to the connecting frame, and the connecting sleeve is rotatably sleeved outside the connecting column, and a changing mechanism that can change the direction of the boat is installed on the connecting frame, and a reset mechanism that drives the connecting frame to reset is installed on the mounting plate.

[0007] Preferably, the direction-changing mechanism includes several groups of connecting rods, which are rotatably installed on the connecting frame, the top of the connecting rod is fixedly connected to a synchronous wheel, the outer tensioning sleeve of the synchronous wheel is connected to a synchronous belt, the bottom of the connecting rod is fixedly connected to an insertion block, a roller is provided under the insertion block, the top of the roller is provided with a slot matching the insertion block, the insertion block is slidably connected to the slot, the bottom of the roller is provided with an installation cavity, the connecting rod is movably connected to a connecting block, and the connecting frame is equipped with a fixing mechanism for fixing the position of the connecting block.

[0008] Preferably, the fixing mechanism includes several groups of limit plates, the limit plates are fixedly connected to the bottom of the connecting block, the bottom of the connecting frame is fixedly connected to several groups of limit blocks, the limit blocks are provided with limit grooves matching the limit plates, the inner wall of the installation cavity is slidably installed with a bottom plate, the top of the bottom plate is fixedly connected to a limit spring, and the top of the limit spring is fixedly connected to the inner wall of the roller.

[0009] Preferably, the reset mechanism includes several groups of second connecting tubes, the second connecting tubes are hinged on the front side of the mounting plate, the inner wall of the second connecting tube is slidably connected to a sliding cover, the end of the sliding cover away from the second connecting tube is hinged to the connecting frame, the inner wall of the sliding cover is fixedly connected to a second buffer spring, and the end of the second buffer spring away from the connecting frame is fixedly connected to the second connecting tube.

[0010] Preferably, the disassembly and assembly components include several groups of sliders, which are fixedly connected to the rear side of the mounting plate, and the mounting frame is provided with several groups of sliding grooves matching the sliders, the sliders are slidably connected to the sliding grooves, and the mounting plate is threadedly installed with several groups of fixing bolts, and the mounting frame is provided with several groups of threaded holes matching the fixing bolts, and the fixing bolts are threadedly connected to the threaded holes.

[0011] Preferably, a protective cover is fixedly installed on the top of the connecting frame, and a plurality of groups of waterproof pads are provided on the connecting frame, and the waterproof pads are rotatably sleeved outside the connecting rod.

[0012] Preferably, the outer fixing sleeve of the roller is provided with a rubber layer, and a shock-absorbing pad is provided on the side of the mounting plate close to the mounting frame.

[0013] Preferably, the catheter frame is provided with a lighting lamp, and the rollers and the connecting frame are both provided with reflective strips.

[0014] The present invention provides a steel structure jacket for large offshore structures. Compared with the prior art, it has the following advantages: The invention relates to a steel structure jacket for large offshore structures. When a small boat collides with the jacket, the connecting frame drives the first connecting tube to slide and compress the first buffer spring to perform preliminary buffering. At the same time, the connecting column rotates to tilt the connecting frame. After the rollers come into contact with the small boat, some of the rollers rotate and drive all the rollers to rotate synchronously through the connecting rod, synchronous wheel and synchronous belt. The tilted connecting frame changes the direction of the small boat and moves it to the side of the jacket, further reducing the collision force, effectively reducing the damage to the jacket caused by the collision, and ensuring its safe and stable operation. After the collision, the first buffer spring rebounds, and the second connecting tube, sliding cover and second buffer spring assist the connecting frame in resetting to cope with the next collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front view structure of the main body of the present invention; Figure 2 It is a schematic diagram of the mounting frame structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the buffer assembly of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the reset mechanism of the present invention; Figure 5 This is a schematic diagram of the connection structure between the plug-in block and the slot of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the fixing mechanism of the present invention; The following are marked in the figure: 1-catheter frame, 2-mounting frame, 3-mounting plate, 4-roller, 5-connecting frame, 6-protective cover, 7-mounting cylinder, 8-slide groove, 9-threaded hole, 10-sliding cover, 11-connecting column, 12-connecting sleeve, 13-first connecting cylinder, 14-first buffer spring, 15-slider, 16-fixing bolt, 17-second buffer spring, 18-second connecting cylinder, 19-synchronizing wheel, 20-connecting rod, 21-waterproof pad, 22-insert block, 23-synchronizing belt, 24-slot, 25-limit block, 26-limit plate, 27-connecting block, 28-bottom plate, 29-limit spring, 30-mounting cavity. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-6 The present invention provides a technical solution: a steel structure jacket for a large offshore structure, comprising a jacket 1, a mounting frame 2 fixedly mounted on the jacket 1, a mounting plate 3 provided on the mounting frame 2, a buffer assembly mounted on the mounting plate 3 for reducing impact force in the event of a collision, and a disassembly assembly mounted on the mounting plate 3 for facilitating disassembly of the mounting plate 3; The buffer assembly includes a mounting tube 7, which is fixedly connected to the front side of the mounting plate 3. The inner wall of the mounting tube 7 is slidably connected to the first connecting tube 13, and the inner wall of the first connecting tube 13 is fixedly installed with a first buffer spring 14. The end of the first buffer spring 14 away from the first connecting tube 13 is fixedly connected to the mounting plate 3. A connecting frame 5 is provided on the side of the mounting plate 3 away from the mounting frame 2. A connecting column 11 is fixedly installed on the side of the connecting frame 5 close to the mounting plate 3. The end of the first connecting tube 13 close to the connecting frame 5 is fixedly connected to a connecting sleeve 12, and the connecting sleeve 12 is rotatably sleeved outside the connecting column 11. A changing mechanism that can change the direction of the boat is installed on the connecting frame 5, and a resetting mechanism that drives the connecting frame 5 to reset is installed on the mounting plate 3.

[0018] When a collision occurs, the connecting frame 5 is affected by the collision force and moves toward the mounting frame 2, driving the first connecting tube 13 to slide into the inner cavity of the mounting tube 7. At this time, the first buffer spring 14 is compressed and plays a certain buffering role. At the same time, the direction of the boat is changed under the action of the changing mechanism, guiding the boat to move to the side of the jacket 1, further reducing the collision force, thereby reducing the damage caused by the collision between the boat and the jacket 1, and ensuring the safe and stable operation of the jacket 1.

[0019] The changing mechanism includes several groups of connecting rods 20, which are rotatably installed on the connecting frame 5. The top of the connecting rod 20 is fixedly connected to a synchronous wheel 19, and the synchronous wheel 19 is tensioned with a synchronous belt 23. The bottom of the connecting rod 20 is fixedly connected to an insert block 22, and a roller 4 is provided below the insert block 22. A slot 24 matching the insert block 22 is provided at the top of the roller 4, and the insert block 22 is slidably connected to the slot 24. An installation cavity 30 is provided at the bottom of the roller 4. A connecting block 27 is movably connected to the connecting rod 20, and a fixing mechanism for fixing the position of the connecting block 27 is installed on the connecting frame 5.

[0020] Under the action of the fixing mechanism, the rollers 4 are installed between the connecting block 27 and the insert block 22. When a collision occurs, the connecting column 11 rotates on the connecting sleeve 12 under the action of the collision force, driving the connecting frame 5 to tilt at a certain angle. The rollers 4 are in direct contact with the boat. Under the action of friction, several groups of rollers 4 rotate, driving the connecting rod 20 to rotate. Under the action of the synchronous wheel 19 and the synchronous belt 23, all the rollers 4 rotate synchronously. Combined with the tilted connecting frame 5, the direction of travel of the boat can be guided to a certain extent, causing the boat to move to the side of the jacket 1.

[0021] The fixing mechanism includes several groups of limit plates 26, which are fixedly connected to the bottom of the connecting block 27. Several groups of limit blocks 25 are fixedly connected to the bottom of the connecting frame 5. The limit blocks 25 are provided with limit grooves matching the limit plates 26. A bottom plate 28 is slidably installed on the inner wall of the installation cavity 30. The top of the bottom plate 28 is fixedly connected to the limit spring 29, and the top of the limit spring 29 is fixedly connected to the inner wall of the roller 4.

[0022] Under the elastic force of the limit spring 29, the limit plate 26 is located in the limit groove of the limit block 25, thereby fixing the position of the connecting block 27. If the roller 4 needs to be replaced, the limit plate 26 can be manually pushed upward, which drives the connecting block 27 and the bottom plate 28 to squeeze the limit spring 29, so that the limit plate 26 is disengaged from the limit groove. Then, the limit plate 26 is rotated 90 degrees and the limit plate 26 and connecting block 27 are removed from the connecting frame 5. The roller 4 can then be replaced.

[0023] The reset mechanism includes several groups of second connecting tubes 18, which are hinged on the front side of the mounting plate 3. The inner wall of the second connecting tube 18 is slidably connected to a sliding cover 10, and the end of the sliding cover 10 away from the second connecting tube 18 is hinged to the connecting frame 5. The inner wall of the sliding cover 10 is fixedly connected to a second buffer spring 17, and the end of the second buffer spring 17 away from the connecting frame 5 is fixedly connected to the second connecting tube 18.

[0024] During a collision, the first buffer spring 14 on one side of the mounting tube 7 is compressed, and the first buffer spring 14 on the other side is stretched, which plays a certain buffering role. After the collision, the first buffer spring 14 rebounds and resets, driving the connecting frame 5 to reset to cope with the next possible collision.

[0025] The disassembly and assembly components include several groups of sliders 15, which are fixedly connected to the rear side of the mounting plate 3. The mounting frame 2 is provided with several groups of slide grooves 8 that match the sliders 15. The sliders 15 are slidably connected to the slide grooves 8. Several groups of fixing bolts 16 are threadedly installed on the mounting plate 3. Several groups of threaded holes 9 that match the fixing bolts 16 are provided on the mounting frame 2. The fixing bolts 16 are threadedly connected to the threaded holes 9.

[0026] By sliding the slider 15 onto the chute 8, the mounting plate 3 is initially mounted on the mounting frame 2. The fixing bolts 16 are then engaged with the threaded holes 9 to secure the connection and ensure a secure connection. For maintenance or replacement, simply reverse the fixing bolts 16 to disengage them from the threaded holes 9 and remove the mounting plate 3.

[0027] A protective cover 6 is fixedly installed on the top of the connecting frame 5, and a plurality of groups of waterproof pads 21 are provided on the connecting frame 5. The waterproof pads 21 are rotatably sleeved outside the connecting rod 20 to prevent seawater from corroding the synchronous wheel 19 and the synchronous belt 23.

[0028] The outer fixing sleeve of the roller 4 is provided with a rubber layer, and a shock-absorbing pad is provided on the side of the mounting plate 3 close to the mounting frame 2.

[0029] The pipe frame 1 is provided with a lighting lamp, and the roller 4 and the connecting frame 5 are both provided with a reflective strip. When the light is weak at night, the position of the pipe frame 1 can be marked by the cooperation of the lighting lamp and the reflective strip, thereby reducing the occurrence of collisions.

[0030] Working Principle: When a boat collides with the jacket 1, the connecting frame 5 is affected by the collision force and moves toward the mounting frame 2, driving the first connecting tube 13 to slide into the inner cavity of the mounting tube 7. The first buffer spring 14 is compressed to provide initial cushioning. Simultaneously, the connecting column 11 rotates on the connecting sleeve 12, tilting the connecting frame 5. The rollers 4 come into contact with the boat. Due to friction, some of the rollers 4 rotate. The connecting rod 20, the synchronous pulley 19, and the synchronous belt 23 drive all the rollers 4 to rotate synchronously. This, in conjunction with the tilting connecting frame 5, redirects the boat toward the side of the jacket 1, further reducing the collision force and thus minimizing damage caused by the collision between the boat and the jacket 1, ensuring the safe and stable operation of the jacket 1. During the collision, the first buffer springs 14 on both sides of the mounting tube 7 are compressed and stretched respectively. After the collision, the first buffer springs 14 rebound, driving the connecting frame 5 back into position. The second connecting tube 18, the sliding cover 10, and the second buffer spring 17 also assist in the reset, preparing for the next collision. The mounting plate 3 is initially mounted on the mounting frame 2 by sliding the slider 15 into the slide slot 8, and then secured by screwing the fixing bolts 16 into the threaded holes 9. For maintenance or replacement, the fixing bolts 16 are reversed to remove the mounting plate 3. To replace the roller 4, the limiting plate 26 is manually disengaged from the limiting slot and rotated 90 degrees. The limiting plate 26 and connecting block 27 are then removed to complete the replacement.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure jacket for a large offshore structure, comprising a jacket (1), characterized in that: A mounting frame (2) is fixedly mounted on the catheter frame (1), a mounting plate (3) is provided on the mounting frame (2), a buffer component capable of reducing impact force in the event of a collision is mounted on the mounting plate (3), and a disassembly component for facilitating disassembly of the mounting plate (3) is mounted on the mounting plate (3); The buffer assembly includes a mounting tube (7), the mounting tube (7) is fixedly connected to the front side of the mounting plate (3), the inner wall of the mounting tube (7) is slidably connected to a first connecting tube (13), the inner wall of the first connecting tube (13) is fixedly installed with a first buffer spring (14), the end of the first buffer spring (14) away from the first connecting tube (13) is fixedly connected to the mounting plate (3), the side of the mounting plate (3) away from the mounting frame (2) is provided with a connecting frame (5), the side of the connecting frame (5) close to the mounting plate (3) is fixedly installed with a connecting column (11), the end of the first connecting tube (13) close to the connecting frame (5) is fixedly connected to a connecting sleeve (12), the connecting sleeve (12) is rotatably sleeved outside the connecting column (11), the connecting frame (5) is installed with a direction-changing mechanism capable of changing the direction of the boat, and the mounting plate (3) is installed with a reset mechanism for driving the connecting frame (5) to reset.

2. The steel structure jacket for a large offshore structure according to claim 1, characterized in that: The direction-changing mechanism comprises a plurality of connecting rods (20), wherein the connecting rods (20) are rotatably mounted on the connecting frame (5), the top of the connecting rods (20) is fixedly connected to a synchronous wheel (19), the synchronous wheel (19) is externally tensioned with a synchronous belt (23), the bottom of the connecting rods (20) is fixedly connected to an insert block (22), a roller (4) is arranged below the insert block (22), a slot (24) matching the insert block (22) is provided on the top of the roller (4), the insert block (22) is slidably connected to the slot (24), a mounting cavity (30) is provided at the bottom of the roller (4), a connecting block (27) is movably connected to the connecting rod (20), and a fixing mechanism for fixing the position of the connecting block (27) is installed on the connecting frame (5).

3. The steel structure jacket for a large offshore structure according to claim 2, characterized in that: The fixing mechanism includes a plurality of groups of limit plates (26), the limit plates (26) are fixedly connected to the bottom of the connecting block (27), the bottom of the connecting frame (5) is fixedly connected to a plurality of groups of limit blocks (25), the limit blocks (25) are provided with limit grooves matching the limit plates (26), the inner wall of the mounting cavity (30) is slidably mounted with a bottom plate (28), the top of the bottom plate (28) is fixedly connected to a limit spring (29), and the top of the limit spring (29) is fixedly connected to the inner wall of the roller (4).

4. The steel structure jacket for a large offshore structure according to claim 3, characterized in that: The reset mechanism comprises a plurality of groups of second connecting tubes (18), wherein the second connecting tubes (18) are hinged to the front side of the mounting plate (3), the inner wall of the second connecting tube (18) is slidably connected to a sliding cover (10), the end of the sliding cover (10) away from the second connecting tube (18) is hinged to the connecting frame (5), the inner wall of the sliding cover (10) is fixedly connected to a second buffer spring (17), and the end of the second buffer spring (17) away from the connecting frame (5) is fixedly connected to the second connecting tube (18).

5. The steel structure jacket for a large offshore structure according to claim 4, characterized in that: The disassembly and assembly components include a plurality of groups of sliders (15), the sliders (15) are fixedly connected to the rear side of the mounting plate (3), the mounting frame (2) is provided with a plurality of groups of slide grooves (8) matching the sliders (15), the sliders (15) are slidably connected to the slide grooves (8), the mounting plate (3) is threadedly provided with a plurality of groups of fixing bolts (16), the mounting frame (2) is provided with a plurality of groups of threaded holes (9) matching the fixing bolts (16), and the fixing bolts (16) are threadedly connected to the threaded holes (9).

6. The steel structure jacket for a large offshore structure according to claim 5, characterized in that: A protective cover (6) is fixedly mounted on the top of the connecting frame (5). A plurality of groups of waterproof pads (21) are provided on the connecting frame (5). The waterproof pads (21) are rotatably sleeved outside the connecting rod (20).

7. The steel structure jacket for a large offshore structure according to claim 6, characterized in that: The outer fixing sleeve of the roller (4) is provided with a rubber layer, and a shock-absorbing pad is provided on the side of the mounting plate (3) close to the mounting frame (2).

8. The steel structure jacket for a large offshore structure according to claim 7, characterized in that: The catheter frame (1) is provided with a lighting lamp, and the roller (4) and the connecting frame (5) are both provided with reflective strips.

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