A mobile steel platform for offshore construction work

Abstract

The present invention relates to the technical field of offshore platform structures, and discloses a mobile steel platform for offshore construction operations, including metal columns and a platform, wherein a plurality of placement fixing members are fixedly connected to the side walls of the metal columns, a plurality of placement fixing members are provided with placement grooves at the tops of the plurality of placement fixing members, a plurality of inner walls of the plurality of placement grooves are provided with connection components, the connection components include connecting arc members, clamping members, clamping grooves and fixing screws, a plurality of connecting arc members are movably connected at both ends to the inner walls of the plurality of placement grooves, a plurality of clamping members are fixedly connected to one end of the plurality of connecting arc members, a plurality of clamping grooves are provided inside the other ends of the plurality of connecting arc members, and a plurality of clamping members are movably connected to the inner walls of the plurality of clamping grooves; the present invention enables the steel structure at the bottom end of the steel platform to be quickly fixedly connected through the connection component, so as to facilitate the operation of the staff at sea.

Description

Technical Field

[0001] The present invention belongs to the technical field of offshore platform structures, and more specifically, relates to a mobile steel platform for offshore construction operations. Background Art

[0002] A floating offshore platform is a large floating body, some of which can be moved and some cannot. A movable floating platform, also known as a mobile platform, is developed to meet the needs of frequent changes in locations for offshore operations such as exploration, construction, and maintenance. Existing mobile platforms are divided into four types: bottom-sitting, self-elevating, semi-submersible, and ship-type. Among floating offshore platforms, a single-column platform (SPAR) is a typical floating platform used in deep water. The single-column platform (SPAR) consists of a cylindrical floating body and several anchor cables, and the cylindrical floating body is fixed in position by seabed anchor cables. However, the current single-column platform is a steel structure formed by crossing and screwing several steel materials during installation or assembly. This structure is not only too cumbersome during installation and disassembly, but also increases the difficulty of operation for staff when inspecting or replacing the mobile platform underwater. Summary of the invention

[0003] The purpose of the present invention is to provide a mobile steel platform for offshore construction operations. The steel structure at the bottom of the steel platform can be quickly fixed and connected through a connecting component, which is convenient for workers to operate at sea. The fixing mechanism can be used to quickly connect it with the anchor cable on the seabed, which is convenient for workers to operate and implement.

[0004] The technical solution adopted by the present invention is as follows: A mobile steel platform for offshore construction operations includes a metal column and a platform, and the platform includes:

[0005] A connecting mechanism is arranged on the top of the platform, and the connecting mechanism is located at the bottom of the platform;

[0006] A quick assembly mechanism, the quick assembly mechanism includes a connecting component and a positioning component, the positioning component is located at one end of the connecting component

[0007] A fixing mechanism, arranged at the bottom end of the quick assembly mechanism;

[0008] Several placement fixing parts are fixedly connected to the side walls of the metal columns, and placement grooves are opened on the tops of several placement fixing parts. Connection components are arranged on the inner walls of several placement grooves, and the connection components include connecting arc parts, clamping parts, clamping grooves and fixing screws. The two ends of several connecting arc parts are movably connected to the inner walls of several placement grooves, several clamping parts are fixedly connected to one end of several connecting arc parts, several clamping grooves are opened inside the other ends of several connecting arc parts, and several clamping parts are movably connected to the inner walls of several clamping grooves.

[0009] Optionally, a plurality of the fixing screws are threadedly connected at the connection between a plurality of placement fixing members and a plurality of connecting arc-shaped members, and a plurality of the fixing screws are located at both ends of the plurality of connecting arc-shaped members.

[0010] Optionally, the side wall of the placement and fixing member is provided with a positioning assembly, and the positioning assembly includes a positioning limiting groove and a positioning member, a number of the positioning limiting grooves are opened inside the side wall of the placement and fixing member, and a number of the positioning members are fixedly connected to one end of a number of connecting arc-shaped member side walls.

[0011] Optionally, a fixing hole groove is provided inside the top end of several of the metal columns, and a connecting mechanism is provided at the bottom end of the platform, the connecting mechanism includes a connecting plate, a docking groove and a cylinder, the connecting plate is fixedly connected to the bottom end of the platform, several of the docking grooves are opened inside the bottom end of the connecting plate, and several of the cylinders are fixedly connected to the side wall of the connecting plate.

[0012] Optionally, the top ends of several metal columns are movably connected to the inner walls of several docking grooves, and the output ends of several cylinders are slidably connected to the inner walls of several fixed hole grooves.

[0013] Optionally, several of the metal columns are fixedly connected to the bottom ends of the metal discs, and several of the metal discs are provided with fixing mechanisms at the bottom ends, the fixing mechanisms include connecting parts, fixing circular grooves, fixing rods, internal threads and auxiliary screws, several of the connecting parts are fixedly connected to the bottom ends of several metal discs, several of the fixing circular grooves are opened inside several of the connecting parts, and several of the fixing rods are slidably connected to the inner walls of several of the connecting parts.

[0014] Optionally, some of the internal threads are arranged inside some fixed rods, one end side walls of some of the auxiliary screws are rotatably connected inside some connecting members, and one end of some of the auxiliary screws are threadedly connected to the inner walls of some of the internal threads.

[0015] Optionally, one end of several of the fixing rods is fixedly connected to a limiting spring, and one end of several of the limiting springs is fixedly connected to one end of the inner wall of several connecting members.

[0016] Optionally, some of the positioning and limiting grooves are L-shaped groove structures, some of the positioning members are cylindrical structures, and some of the positioning members are movably connected to the inner walls of some of the positioning and limiting grooves.

[0017] The technical effects achieved by the present invention are:

[0018] (1) This solution uses a connection assembly to sequentially place the two ends of a plurality of connection arc-shaped members into the placement grooves on the placement fixing members, and then the clamping members and the clamping grooves fit each other, so that the plurality of connection arc-shaped members are sequentially connected end to end to form a circular ring structure, and then the metal column is further fixed and controlled. When the circular ring structure formed by the plurality of connection arc-shaped members moves to a predetermined position, the fixing screws are used to rotate and tighten the positions of the two ends of the plurality of connection arc-shaped members on the placement fixing members, and the steel structure at the bottom of the steel platform is quickly fixed and connected through the connection assembly, which is convenient for the staff to operate at sea;

[0019] (2) Through the positioning assembly, when the side wall of one end of the plurality of connecting arc-shaped members enters the placement groove on the placement fixing member, the positioning member will simultaneously enter the positioning limiting groove, and then rotate to form a circular ring structure of the connecting arc-shaped members, so that the positioning members on the plurality of connecting arc-shaped members enter the bottom of the positioning limiting groove. Through the positioning assembly, the plurality of connecting arc-shaped members can quickly and accurately determine the position in the placement groove, which is convenient for the subsequent plurality of connecting arc-shaped members to quickly combine to form a circular ring structure, and can also prevent the connecting arc-shaped members from shaking in the seawater and easily moving upward and out of the placement groove;

[0020] (3) Through the connection mechanism, several metal columns are inserted into several docking grooves in sequence, and then the metal columns are gradually rotated in sequence to align the fixed hole grooves on the metal columns with the output ends of the cylinders. Then, the cylinders are operated to extend so that the output ends of the cylinders enter the fixed hole grooves, thereby realizing the rapid positioning and fixing of the metal columns. The connection mechanism is used to ensure that the subsequent rapid assembly mechanism can operate smoothly;

[0021] (4) The auxiliary screw is rotated through the fixing mechanism. When the auxiliary screw is rotated through the threaded connection structure, the fixing rod is moved toward one end of the inner wall of the connecting piece by using the internal thread when the auxiliary screw is in a fixed position. Then, one end of the anchor cable is sleeved on the side wall of the fixing rod through the fixed circular groove. When the auxiliary screw is rotated in the reverse direction, the fixing rod moves to fix one end of the anchor cable in the fixed circular groove. The fixing mechanism is used to realize a quick connection with the anchor cable on the seabed, which is convenient for the staff to operate and implement.

[0022] (5) The limiting spring and the elastic force generated by the compression of the limiting spring will give a thrust to the fixing rod to prevent one end of the anchor cable from detaching when the fixing rod loosens and moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a structural schematic diagram of a mobile steel platform for offshore construction operations according to the present invention;

[0025] Figure 2 This is a structural schematic diagram of a mobile steel platform for offshore construction operations according to the present invention;

[0026] Figure 3 This is a schematic structural diagram of a rapid assembly mechanism in a mobile steel platform for offshore construction operations according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the connection components of a quick assembly mechanism in a mobile steel platform for offshore construction operations according to the present invention;

[0028] Figure 5 This is a schematic diagram of the structural part of the connection components of a quick assembly mechanism in a mobile steel platform for offshore construction work according to the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of a fixing mechanism in a mobile steel platform for offshore construction operations according to the present invention;

[0030] Figure 7 This is a cross-sectional view of a fixing mechanism in a mobile steel platform for offshore construction operations according to the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Metal column; 2. Placement of fixing parts; 3. Placement groove; 4. Connecting arc parts; 5. Snap-in parts; 6. Snap-in groove; 7. Fixing screws; 8. Positioning and limiting grooves; 9. Positioning parts; 10. Fixing hole grooves; 11. Platform; 12. Connecting plate; 13. Docking grooves; 14. Cylinder; 15. Metal disc; 16. Connecting parts; 17. Fixed circular grooves; 18. Fixed rods; 19. Internal threads; 20. Auxiliary screws; 21. Limiting springs. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 7 The present invention provides a mobile steel platform for offshore construction operations, comprising a metal column 1 and a platform 11, wherein the platform comprises:

[0035] A connecting mechanism is arranged on the top of the platform, and the connecting mechanism is located at the bottom end of the platform 11;

[0036] The quick assembly mechanism includes a connecting component and a positioning component, and the positioning component is located at one end of the connecting component.

[0037] A fixing mechanism, arranged at the bottom end of the quick assembly mechanism;

[0038] Several metal columns 1 are fixedly connected to the side walls with several placement fixings 2, several placement fixings 2 are provided with placement grooves 3 at the top, several placement grooves 3 are provided with connecting components on the inner walls, the connecting components include connecting arc-shaped parts 4, clamping parts 5, clamping grooves 6 and fixing screws 7, several connecting arc-shaped parts 4 are movably connected to the inner walls of several placement grooves 3 at both ends, several clamping parts 5 are fixedly connected to one end of several connecting arc-shaped parts 4, several clamping grooves 6 are provided inside the other end of several connecting arc-shaped parts 4, several clamping parts 5 are movably connected to the inner walls of several clamping grooves 6, several fixing screws 7 are threadedly connected to the connection between several placement fixings 2 and several connecting arc-shaped parts 4, and several The fixing screws 7 are located at both ends of the several connecting arc-shaped parts 4; first, the two ends of the several connecting arc-shaped parts 4 are placed in the placement grooves 3 on the placement fixing parts 2 in turn, and then the clamping parts 5 and the clamping grooves 6 are fitted with each other, and then the several connecting arc-shaped parts 4 are connected end to end in turn to form a circular ring structure, and then the metal column 1 is further fixed and controlled. When the circular ring structure formed by the several connecting arc-shaped parts 4 moves to the predetermined position, the fixing screws 7 are used to rotate and tighten the positions of the two ends of the several connecting arc-shaped parts 4 on the placement fixing parts 2, and the steel structure at the bottom of the steel platform is quickly fixed and connected through the connecting assembly, which is convenient for the staff to operate at sea.

[0039] In some embodiments, see Figure 4 , Figure 5 , a positioning assembly is provided on the side wall of the placement fixing member 2, and the positioning assembly includes a positioning and limiting groove 8 and a positioning member 9. Several positioning and limiting grooves 8 are opened inside the side wall of the placement fixing member 2, and several positioning members 9 are fixedly connected to one end of the side wall of several connecting arc-shaped members 4. Several positioning and limiting grooves 8 are L-shaped notch structures, and several positioning members 9 are cylindrical structures. Several positioning members 9 are movably connected to the inner walls of several positioning and limiting grooves 8; when the side walls of one end of several connecting arc-shaped members 4 enter the placement groove 3 on the placement fixing member 2, the positioning members 9 will simultaneously enter the positioning and limiting groove 8, and then rotate to form a circular ring structure of the connecting arc-shaped members 4, so that the positioning members 9 on the several connecting arc-shaped members 4 enter the bottom of the positioning and limiting groove 8, and the positioning assembly enables the several connecting arc-shaped members 4 to quickly and accurately determine the position in the placement groove 3, which is convenient for the subsequent rapid combination of several connecting arc-shaped members 4 to form a circular ring mechanism, and can also prevent the connecting arc-shaped members 4 from shaking in the sea water and easily moving upward to separate from the placement groove 3.

[0040] In some embodiments, see Figure 2 , Figure 3 , a plurality of metal columns 1 have fixed holes 10 at the top ends thereof, a connecting mechanism is provided at the bottom end of the platform 11, the connecting mechanism comprises a connecting plate 12, a docking groove 13 and a cylinder 14, the connecting plate 12 is fixedly connected to the bottom end of the platform 11, a plurality of docking grooves 13 are provided inside the bottom end of the connecting plate 12, a plurality of cylinders 14 are fixedly connected to the side wall of the connecting plate 12, a plurality of metal columns 1 are movably connected to the inner walls of the plurality of docking grooves 13 at the top ends thereof, and a plurality of cylinders 14 output ends are slidably connected to the inner walls of the plurality of fixed holes 10; a plurality of metal columns 1 are inserted into the plurality of docking grooves 13 in sequence, and then the metal columns 1 are gradually rotated in sequence, so that the fixed holes 10 on the metal columns 1 are aligned with the output ends of the cylinders 14, and then the cylinders 14 are operated to extend so that the output ends of the cylinders 14 enter into the fixed holes 10, thereby realizing rapid positioning and fixing of the metal columns 1, and the connection mechanism is used to ensure that the subsequent rapid assembly mechanism can run smoothly.

[0041] In some embodiments, see Figure 6 , Figure 7 The bottom ends of the plurality of metal columns 1 are fixedly connected with metal discs 15, and the bottom ends of the plurality of metal discs 15 are provided with fixing mechanisms, which include connecting pieces 16, fixing circular grooves 17, fixing rods 18, internal threads 19 and auxiliary screws 20. The plurality of connecting pieces 16 are fixedly connected with the bottom ends of the plurality of metal discs 15, and the plurality of fixing circular grooves 17 are provided inside the plurality of connecting pieces 16. The plurality of fixing rods 18 are slidably connected with the inner walls of the plurality of connecting pieces 16, and the plurality of internal threads 19 are provided inside the plurality of fixing rods 18. The side walls of the plurality of auxiliary screws 20 are rotatably connected with the plurality of connecting pieces. 16, one end of a plurality of auxiliary screws 20 is threadedly connected to the inside of a plurality of internal threads 19; the auxiliary screws 20 are rotated, and when the auxiliary screws 20 rotate through the threaded connection structure, the fixing rod 18 moves toward one end of the inner wall of the connecting piece 16 by means of the internal thread 19 when the auxiliary screws 20 are stationary, and then one end of the anchor cable is sleeved on the side wall of the fixing rod 18 through the fixing circular groove 17, and then when the auxiliary screws 20 are reversely rotated, the fixing rod 18 moves to fix one end of the anchor cable in the fixing circular groove 17, and a quick connection with the anchor cable on the seabed is achieved through the fixing mechanism, which is convenient for the staff to operate and implement.

[0042] In some embodiments, see Figure 7 One end of the fixing rods 18 is fixedly connected with a limiting spring 21, and one end of the limiting spring 21 is fixedly connected to one end of the inner wall of the connecting parts 16; the elastic force generated by the compression of the limiting spring 21 will give a thrust to the fixing rod 18 to prevent one end of the anchor cable from detaching when the fixing rod 18 loosens and moves.

[0043] The working process and principle of the present invention are as follows: during installation, a plurality of metal columns 1 are sequentially inserted into a plurality of docking grooves 13, and then the metal columns 1 are gradually rotated in sequence to align the fixed hole grooves 10 on the metal columns 1 with the output ends of the cylinders 14, and then the cylinders 14 are operated to extend so that the output ends of the cylinders 14 enter the fixed hole grooves 10, thereby realizing rapid positioning and fixing of the metal columns 1, and the connection mechanism is used to ensure that the subsequent rapid assembly mechanism can operate smoothly, firstly, the two ends of a plurality of connecting arc-shaped members 4 are sequentially placed in the placement grooves 3 on the placement fixing members 2, and then the metal columns 1 are arranged in a fixed position. The clamping member 5 and the clamping groove 6 fit each other, and then the several connecting arc-shaped members 4 are connected end to end in sequence to form a circular ring structure, and then the metal column 1 is further fixed and controlled. When the side wall of one end of the several connecting arc-shaped members 4 enters the placement groove 3 on the placement fixing member 2, the positioning member 9 will enter the positioning and limiting groove 8 at the same time, and then rotate to form a circular ring structure of the connecting arc-shaped members 4, so that the positioning members 9 on the several connecting arc-shaped members 4 enter the bottom end of the positioning and limiting groove 8, and the several connecting arc-shaped members 4 can be quickly and accurately placed in the placement groove 3 through the positioning assembly. The positions are determined to facilitate the subsequent rapid combination of several connecting arc-shaped members 4 to form a circular ring-shaped mechanism, and the connecting arc-shaped members 4 can also be prevented from shaking in the seawater and easily moving upward and out of the placement groove 3. When the circular ring-shaped structure formed by the several connecting arc-shaped members 4 moves to the predetermined position, the fixing screws 7 are used to rotate and tighten the positions of the two ends of the several connecting arc-shaped members 4 on the placement fixing member 2, and the steel structure at the bottom of the steel platform is quickly fixed and connected through the connecting assembly, which is convenient for the staff to operate at sea, and the auxiliary screw 20 is rotated to connect the auxiliary screw 2 through the threaded connection structure. 0 is rotated, the auxiliary screw 20 is fixed in position, and the fixing rod 18 moves toward one end of the inner wall of the connecting piece 16 by means of the internal thread 19, and then one end of the anchor cable is sleeved on the side wall of the fixing rod 18 through the fixing circular groove 17, and then when the auxiliary screw 20 is rotated in the reverse direction, the fixing rod 18 moves to fix one end of the anchor cable in the fixing circular groove 17, and a quick connection with the anchor cable on the seabed is achieved through the fixing mechanism, which is convenient for the staff to operate and implement, and the elastic force generated by the compression of the limiting spring 21 will give a thrust to the fixing rod 18 to prevent one end of the anchor cable from detaching when the fixing rod 18 is loose and moved.

[0044] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mobile steel platform for offshore construction work, comprising a metal column (1) and a platform (11), characterized in that: The platform includes: A connecting mechanism is arranged on the top of the platform, and the connecting mechanism is located at the bottom end of the platform (11); A quick assembly mechanism, the quick assembly mechanism includes a connecting component and a positioning component, the positioning component is located at one end of the connecting component A fixing mechanism, arranged at the bottom end of the quick assembly mechanism; Several side walls of the metal columns (1) are fixedly connected with several placement fixing members (2), several placement fixing members (2) are provided with placement grooves (3) at their tops, several inner walls of the placement grooves (3) are provided with connection components, the connection components include connection arc members (4), clamping members (5), clamping grooves (6) and fixing screws (7), two ends of several connection arc members (4) are movably connected to the inner walls of several placement grooves (3), several clamping members (5) are fixedly connected to one end of several connection arc members (4), several clamping grooves (6) are provided inside the other ends of several connection arc members (4), and several clamping members (5) are movably connected to the inner walls of several clamping grooves (6); The plurality of fixing screws (7) are threadedly connected to the connection between the plurality of placement fixing members (2) and the plurality of connecting arc-shaped members (4), and the plurality of fixing screws (7) are located at both ends of the plurality of connecting arc-shaped members (4); The side wall of the placement fixing member (2) is provided with a positioning assembly, the positioning assembly comprising a positioning limiting groove (8) and a positioning member (9), a plurality of the positioning limiting grooves (8) are arranged inside the side wall of the placement fixing member (2), and a plurality of the positioning members (9) are fixedly connected to one end of the side wall of a plurality of connecting arc-shaped members (4); A plurality of the metal columns (1) have fixing holes (10) at their top ends, a connection mechanism is provided at the bottom end of the platform (11), the connection mechanism comprises a connection plate (12), a docking groove (13) and a cylinder (14), the connection plate (12) is fixedly connected to the bottom end of the platform (11), a plurality of the docking grooves (13) are provided inside the bottom end of the connection plate (12), and a plurality of the cylinders (14) are fixedly connected to the side wall of the connection plate (12); The top ends of the plurality of metal columns (1) are movably connected to the inner walls of the plurality of docking grooves (13), and the output ends of the plurality of cylinders (14) are slidably connected to the inner walls of the plurality of fixed hole grooves (10).

2. A mobile steel platform for offshore construction operations according to claim 1, characterized in that: The bottom ends of the plurality of metal columns (1) are fixedly connected to metal discs (15), and the bottom ends of the plurality of metal discs (15) are provided with fixing mechanisms, wherein the fixing mechanisms include connecting pieces (16), fixing circular grooves (17), fixing rods (18), internal threads (19) and auxiliary screws (20). The plurality of connecting pieces (16) are fixedly connected to the bottom ends of the plurality of metal discs (15), the plurality of fixing circular grooves (17) are provided inside the plurality of connecting pieces (16), and the plurality of fixing rods (18) are slidably connected to the inner walls of the plurality of connecting pieces (16).

3. A mobile steel platform for offshore construction operations according to claim 2, characterized in that: The plurality of internal threads (19) are arranged inside the plurality of fixed rods (18), the side walls of one end of the plurality of auxiliary screw rods (20) are rotatably connected inside the plurality of connecting members (16), and the one ends of the plurality of auxiliary screw rods (20) are threadedly connected to the inner walls of the plurality of internal threads (19).

4. The mobile steel platform for offshore construction operations according to claim 2, characterized in that: One end of the plurality of fixing rods (18) is fixedly connected to a limiting spring (21), and one end of the plurality of limiting springs (21) is fixedly connected to one end of the inner wall of the plurality of connecting members (16).

5. The mobile steel platform for offshore construction work according to claim 1, characterized in that: A plurality of the positioning and limiting grooves (8) are L-shaped notch structures, a plurality of the positioning members (9) are cylindrical structures, and a plurality of the positioning members (9) are movably connected to the inner walls of a plurality of the positioning and limiting grooves (8).

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