Modular pile leg connecting structure

Abstract

The utility model discloses a modularized pile leg connecting structure which comprises a connecting ring and at least two sets of elastic locking pieces. Each group of elastic locking pieces comprises a first elastic locking piece and a second elastic locking piece; the first elastic locking piece is arranged on the outer periphery of the connecting ring and is formed by obliquely extending the outer periphery upwards in the axial direction of the connecting ring; the second elastic locking piece is arranged on the outer periphery of the connecting ring and is formed by obliquely extending the outer periphery downwards in the axial direction of the connecting ring; the tail end of each first elastic locking piece is fixed to the inner side wall of the upper pile leg section, and the tail end of each second elastic locking piece is fixed to the inner side wall of the lower pile leg section, so that the upper pile leg section and the lower pile leg section are fixedly connected with each other. By designing the built-in pile leg connecting structure, replacement of the whole pile leg is avoided, the manufacturing and replacing cost is reduced, rapid splicing of the modular pile leg is achieved, the extension process of the pile leg is faster, and the assembly time consumption is short.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering construction, in particular to a modular pile-leg connection structure. Background Art

[0002] In an offshore engineering platform, the role of the pile legs is to support the offshore engineering platform. As offshore engineering develops into deeper waters, during the use of the pile legs, it may happen that the original pile legs can no longer meet the depth requirements of the ocean. Currently, when replacing longer pile legs, the entire pile leg is usually replaced directly. The replacement cost and manufacturing cost of the pile legs are too high, and the process is more time-consuming and inefficient, which cannot meet the needs of offshore engineering.

[0003] Currently, modular assembly pile leg technology is used to extend the length of the pile legs. For example, Chinese Patent Publication (Announcement) No. CN108374401A discloses a wind turbine installation vessel pile leg extension device and installation method. By designing a connection and lifting device, the pile legs are lengthened, making them suitable for deep-sea installation operations. However, during the installation process of the pile leg extension, it is necessary to add a lower flange for reinforcement to the top of the original pile leg, and at the same time, add an upper flange and top reinforcement components to the bottom of the extended pile leg. These components need to be pre-welded to the pile leg, which undoubtedly increases the workload and difficulty of pile leg extension, making it impossible to achieve quick installation, effectively reducing construction costs, and improving the cost-effectiveness and applicability of the pile leg. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a modular pile-leg connection structure. The present invention provides a novel pile-leg connection structure that is easy to install, simplifies the installation process, and enhances adaptability, and has potential innovative value in the field of marine engineering.

[0005] The purpose of the utility model is achieved by adopting the following technical solutions: a modular pile leg connection structure, which is arranged at the connection position of two pile legs, and the two pile legs are an upper pile leg and a lower pile leg respectively; the modular pile leg connection structure includes a connecting ring and at least two groups of elastic locking members connected to the outer periphery of the connecting ring; each group of elastic locking members includes a first elastic locking member and a second elastic locking member; the first elastic locking member is arranged on the outer periphery of the connecting ring and is formed by the outer periphery extending upward and obliquely along the axial direction of the connecting ring; the second elastic locking member is arranged on the outer periphery of the connecting ring and is formed by the outer periphery extending downward and obliquely along the axial direction of the connecting ring; the ends of each first elastic locking member are respectively fixed on the inner side wall of the upper pile leg, and the ends of each second elastic locking member are respectively fixed on the inner side wall of the lower pile leg, so as to fix the upper pile leg and the lower pile leg to each other.

[0006] Optionally, each of the first elastic locking members includes a first outwardly inclined portion and a first upright portion; one end of the first outwardly inclined portion is connected to the outer periphery of the connecting ring, and the other end is connected to the first upright portion.

[0007] Optionally, a plurality of first fastening holes are provided on the first upright portion; a locking hole adapted to the position of the first fastening hole is provided on the lower portion of the upper leg, and the first upright portion is locked and fixed to the inner wall of the upper leg by fasteners cooperating with the first fastening holes and the locking holes.

[0008] Optionally, a limiting groove that matches the shape of the first upright portion is recessed at the lower portion of the upper leg, and the first fastening hole is arranged in the limiting groove.

[0009] Optionally, each of the second elastic locking members includes a second outwardly inclined portion and a second upright portion; one end of the second outwardly inclined portion is connected to the outer periphery of the connecting ring, and the other end is connected to the second upright portion.

[0010] Optionally, a plurality of second fastening holes are provided on the second upright portion; a locking hole adapted to the position of the second fastening hole is provided on the upper portion of the lower leg, and the second upright portion is locked and fixed to the inner wall of the lower leg by fasteners cooperating with the second fastening holes and the locking holes.

[0011] Optionally, a limiting groove that matches the shape of the second upright portion is recessed on the upper portion of the lower leg, and the second fastening hole is arranged in the limiting groove.

[0012] Optionally, at least one limit block is protruding outward from the outer periphery of the connecting ring, and an axial guide groove matching the shape of the limit block is recessed on the inner walls of the upper and lower pile legs.

[0013] Optionally, four groups of elastic locking members are provided on the outer periphery of the connecting ring; and the elastic locking members of each group are evenly distributed on the outer periphery of the connecting ring at equal intervals.

[0014] Optionally, the first elastic locking member and the second elastic locking member on each group of elastic locking members are symmetrically arranged in the upper and lower parts.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Reduce costs and improve efficiency: By designing a built-in pile leg connection structure, the replacement of the entire pile leg is avoided, reducing manufacturing and replacement costs, and realizing rapid assembly of modular pile legs, making the pile leg extension process faster and shortening the process time.

[0017] 2. Improve connection stability and simplify installation process: Through the built-in connecting ring and elastic locking parts, during installation, the pile leg connection structure will be hoisted from the inside of the pile leg to the required position, and a horizontally retractable hydraulic jacking device will be used to expand the pile leg connection structure between the two pile legs, so that the upper and lower parts of the connecting ring structure can be connected to the upper pile leg and the lower pile leg respectively through fasteners, thereby achieving stable connection of the pile legs and reducing the welding workload and difficulty during the pile leg extension process.

[0018] 3. Enhanced applicability: The design of the pile leg connection structure allows the pile legs to adapt to requirements of different lengths, improving the applicability of the pile legs in projects at different ocean depths.

[0019] 4. Easy maintenance: The modular design makes the maintenance and replacement of the pile legs more convenient, and local repairs or replacements can be carried out quickly without having to deal with the entire pile leg.

[0020] 5. Improved economy: The economic efficiency of the pile legs is improved by reducing the overall cost of manufacturing and replacement and improving work efficiency.

[0021] 6. Strong environmental adaptability: The improved pile-leg connection structure can better adapt to complex marine environments such as the deep sea, thereby improving the stability and reliability of the offshore engineering platform.

[0022] 7. Scalability: This technical solution may have good scalability and can be applied to a wider range of marine engineering projects in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a disassembled schematic diagram of the upper pile leg, lower pile leg and modular pile leg connection structure;

[0024] Figure 2 for Figure 1 Schematic diagram of the upper pile leg and the lower pile leg after being fixed and assembled;

[0025] Figure 3 This is a schematic diagram of a modular pile-leg connection structure according to a preferred embodiment of the present invention;

[0026] Figure 4 This is a partial schematic diagram of a modular pile-leg connection structure according to a preferred embodiment of the present invention;

[0027] Figure 5 This is a front view of the modular pile-leg connection structure of a preferred embodiment of the present utility model;

[0028] Figure 6 It is a cross-sectional schematic diagram of the modular pile leg connection structure after being fixedly assembled with the upper pile leg and the lower pile leg;

[0029] Figure 7 for Figure 6 A magnified schematic diagram of point A in the middle;

[0030] Figure 8 This is a partial enlarged schematic diagram of the upper and lower pile legs.

[0031] In the figure: 100, modular pile-leg connection structure;

[0032] 1. Connecting ring;

[0033] 2. Elastic locking member; 21. First elastic locking member; 211. First outwardly inclined portion; 212. First upright portion; 213. First fastening hole; 22. Second elastic locking member; 221. Second outwardly inclined portion; 222. Second upright portion; 223. Second fastening hole;

[0034] 3. Limit block;

[0035] 200, upper pile leg; 201, locking hole; 202, limiting groove; 203, axial guide groove;

[0036] 300, lower leg; 301, locking hole; 302, limiting groove; 303, axial guide groove. DETAILED DESCRIPTION

[0037] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] like Figure 1-8 As shown, a modular pile leg connection structure 100 is provided at the connection position of two pile legs, the two pile legs being an upper pile leg 200 and a lower pile leg 300 respectively; the modular pile leg connection structure 100 comprises a connecting ring 1, at least two groups of elastic locking members 2 connected to the outer periphery of the connecting ring 1; each group of elastic locking members 2 comprises a first elastic locking member 21 and a second elastic locking member 22; the first elastic locking member 21 is provided at the outer periphery of the connecting ring 1, and The outer periphery extends upward along the axial direction of the connecting ring 1; the second elastic locking member 22 is arranged on the outer periphery of the connecting ring 1, and extends downward along the axial direction of the connecting ring 1 from the outer periphery; the ends of each first elastic locking member 21 are respectively fixed on the inner side wall of the upper leg 200, and the ends of each second elastic locking member 22 are respectively fixed on the inner side wall of the lower leg 300, so as to fix the upper leg 200 and the lower leg 300 to each other.

[0039] This application avoids the replacement of the entire pile leg by designing a built-in pile leg connection structure, reduces manufacturing and replacement costs, realizes rapid assembly of modular pile legs, makes the pile leg extension process faster, and shortens the process time.

[0040] As a further preferred embodiment, each of the first elastic locking members 21 includes a first outwardly inclined portion 211 and a first upright portion 212 ; one end of the first outwardly inclined portion 211 is connected to the outer periphery of the connecting ring 1 , and the other end is connected to the first upright portion 212 .

[0041] As a further preferred embodiment, a plurality of first fastening holes 213 are provided on the first upright portion 212; a locking hole 201 is provided on the lower portion of the upper leg 200 and is adapted to the position of the first fastening hole 213. The first upright portion 212 is locked and fixed to the inner wall of the upper leg 200 by a fastener (not shown in the figure) cooperating with the first fastening hole 213 and the locking hole 201.

[0042] As a further preferred solution, a limiting groove 202 having a shape matching that of the first upright portion 212 is recessed in the lower portion of the upper leg 200 , and the first fastening hole 213 is provided in the limiting groove 202 .

[0043] As a further preferred embodiment, each of the second elastic locking members 22 includes a second outwardly inclined portion 221 and a second upright portion 222 ; one end of the second outwardly inclined portion 221 is connected to the outer periphery of the connecting ring 1 , and the other end is connected to the second upright portion 222 .

[0044] As a further preferred embodiment, a plurality of second fastening holes 223 are provided on the second upright portion 222; a locking hole 301 is provided on the upper portion of the lower leg 300, which is adapted to the position of the second fastening hole 223, and the second upright portion 222 is locked and fixed to the inner wall of the lower leg 300 by fasteners cooperating with the second fastening hole 223 and the locking hole 301.

[0045] As a further preferred solution, a limiting groove 302 having a shape matching that of the second upright portion 222 is recessed on the upper portion of the lower leg 300 , and the second fastening hole 223 is provided in the limiting groove 302 .

[0046] Specifically, the present application uses a built-in connecting ring 1 and an elastic locking member 2. During installation, the pile leg connecting structure is hoisted from the inside of the pile leg to the desired position, and a horizontally retractable hydraulic jacking device is used to expand the pile leg connecting structure between the two sections of the pile legs (specifically the first upright part 212 and the second upright part 222), so that the first upright part 212 and the second upright part 222 of the connecting ring 1 structure are connected to the upper pile leg 200 and the lower pile leg 300 respectively through fasteners, thereby achieving a stable connection of the pile legs and reducing the welding workload and difficulty during the pile leg extension process.

[0047] As a further preferred solution, at least one limit block 3 is protruding outward from the outer periphery of the connecting ring 1 , and the inner walls of the upper leg 200 and the lower leg 300 are recessed with axial guide grooves 203 / 303 that are adapted to the shape of the limit block 3 .

[0048] The present application designs a limit block 3 in the pile leg connection structure and an axial guide groove in the inner wall of the pile leg, and the two slide together so that when the pile leg connection structure is hoisted, the pile leg connection structure can move up and down along a preset moving trajectory in the pile leg. This is conducive to the precise alignment between the locking hole 201 / 301 and the first and second fastening holes 213 / 223, thereby realizing the rapid installation of fasteners and improving installation efficiency and quality.

[0049] As a further preferred solution, four groups of elastic locking members 2 are provided on the outer periphery of the connecting ring 1 ; the elastic locking members 2 of each group are evenly distributed on the outer periphery of the connecting ring 1 at equal intervals.

[0050] The preferred number of elastic locking members 2 is four, which can effectively balance the relationship between the installation firmness of the pile legs, assembly time and cost, and is a more preferred implementation method of this solution.

[0051] As a further preferred solution, the first elastic locking member 21 and the second elastic locking member 22 on each group of elastic locking members 2 are symmetrically arranged up and down.

[0052] By designing a first elastic locking member 21 and a second elastic locking member 22 that are symmetrical in the upper and lower directions, the present application can reduce and optimize the mold processing cost of the pile leg connection structure, simplify the assembly process, and have certain economic and practical value for speeding up and increasing the efficiency of the pile leg extension project.

[0053] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A modular pile-leg connection structure, characterized in that: The modular pile leg connection structure is arranged at the connection position of two pile legs, and the two pile legs are an upper pile leg and a lower pile leg respectively; the modular pile leg connection structure includes a connecting ring and at least two groups of elastic locking parts connected to the outer periphery of the connecting ring; each group of elastic locking parts includes a first elastic locking part and a second elastic locking part; the first elastic locking part is arranged on the outer periphery of the connecting ring, and is formed by the outer periphery extending upward and obliquely along the axial direction of the connecting ring; the second elastic locking part is arranged on the outer periphery of the connecting ring, and is formed by the outer periphery extending downward and obliquely along the axial direction of the connecting ring; the ends of each first elastic locking part are respectively fixed on the inner side wall of the upper pile leg, and the ends of each second elastic locking part are respectively fixed on the inner side wall of the lower pile leg, so as to fix the upper pile leg and the lower pile leg to each other.

2. The modular pile-leg connection structure according to claim 1, characterized in that: Each of the first elastic locking members includes a first outwardly inclined portion and a first upright portion; one end of the first outwardly inclined portion is connected to the outer periphery of the connecting ring, and the other end is connected to the first upright portion.

3. The modular pile-leg connection structure according to claim 2, characterized in that: A plurality of first fastening holes are provided on the first upright portion; a locking hole is provided on the lower portion of the upper leg and is adapted to the position of the first fastening holes, and the first upright portion is locked and fixed to the inner wall of the upper leg by fasteners cooperating with the first fastening holes and the locking holes.

4. The modular pile-leg connection structure according to claim 3, characterized in that: A limiting groove that matches the shape of the first upright portion is recessed at the lower portion of the upper leg, and the first fastening hole is arranged in the limiting groove.

5. The modular pile-leg connection structure according to claim 1, wherein: Each of the second elastic locking members includes a second outwardly inclined portion and a second upright portion; one end of the second outwardly inclined portion is connected to the outer periphery of the connecting ring, and the other end is connected to the second upright portion.

6. The modular pile-leg connection structure according to claim 5, characterized in that: A plurality of second fastening holes are provided on the second upright portion; a locking hole is provided on the upper portion of the lower leg and is adapted to the position of the second fastening holes, and the second upright portion is locked and fixed to the inner wall of the lower leg by fasteners cooperating with the second fastening holes and the locking holes.

7. The modular pile-leg connection structure according to claim 6, wherein: The upper portion of the lower leg is provided with a limiting groove which matches the shape of the second upright portion, and the second fastening hole is arranged in the limiting groove.

8. The modular pile-leg connection structure according to any one of claims 1 to 7, characterized in that: At least one limiting block is protruded outwardly from the outer periphery of the connecting ring, and an axial guide groove matching the shape of the limiting block is recessed on the inner walls of the upper pile leg and the lower pile leg.

9. The modular pile-leg connection structure according to any one of claims 1 to 7, characterized in that: Four groups of elastic locking members are provided on the outer periphery of the connecting ring; the elastic locking members of each group are evenly distributed at equal intervals on the outer periphery of the connecting ring.

10. The modular pile-leg connection structure according to any one of claims 1 to 7, characterized in that: The first elastic locking member and the second elastic locking member on each group of elastic locking members are symmetrically arranged up and down.

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