Detachable pile shoe of self-elevating platform

Abstract

The utility model relates to the technical field of ocean platforms, in particular to a detachable pile shoe of a self-elevating platform, which comprises a pile shoe and a pile leg detachably connected with the pile shoe, a butt joint column is coaxially arranged on the end face of the bottom of the pile leg, and a plurality of fastening plates evenly distributed in a surrounding manner are arranged on the end face of the outer side of the pile leg. The pile shoe comprises a base and a mounting column arranged at the top of the base, a butt joint groove matched with the butt joint column is formed in the end face of the top of the mounting column, and connecting blocks with the same number as the fastening plates are arranged on the end face of the outer side of the mounting column. According to the self-elevating platform, the pile shoes can be conveniently replaced according to different operation water areas and geology so as to adapt to a new operation environment, the applicability is greatly improved, meanwhile, the situation that welding connection between the pile legs and the pile shoes easily causes cracks in a welding area, the connection strength between the pile legs and the pile shoes and the safety of the whole platform are affected is avoided, and the use safety of the self-elevating platform is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore platforms, and particularly relates to a detachable pile shoe for a jack-up platform. Background Art

[0002] The jack-up platform belongs to an offshore mobile platform, generally composed of a platform structure, a lifting mechanism, pile legs and pile shoes, etc. When offshore operations are required, the pile legs can be inserted into the seabed. At this time, the pile shoes will also follow the pile legs and be buried in the seabed to bear the pressure of the entire offshore platform. The pile shoes can increase the contact area between the pile legs and the seabed and improve the stability when the pile legs are buried in the seabed.

[0003] Generally, the pile shoes are connected to the pile legs by welding. For pile legs and pile shoes made of some high-strength steel plates, the welding performance is poor, and defects such as cracks are likely to occur in the weld area. At the same time, when the operating waters and geological conditions of the platform change, the welding connection method makes the jack-up platform unable to adapt to the change of geological conditions by replacing the pile shoes, reducing the applicability of the jack-up platform. Summary of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies of the prior art and provide a detachable pile shoe for a jack-up platform to solve the problems that the welding connection between the pile shoe and the pile leg makes defects such as cracks likely to occur in the weld area, and at the same time, when the operating waters and geological conditions of the platform change, the welding connection method makes the jack-up platform unable to adapt to the change of geological conditions by replacing the pile shoes, reducing the applicability of the jack-up platform.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A detachable pile shoe for a jack-up platform includes a pile shoe and a pile leg detachably connected thereto. A docking column is coaxially provided on the bottom end face of the pile leg, and a plurality of fastening plates are evenly and circumferentially distributed on the outer side end face of the pile leg. The pile shoe includes a base and a mounting column provided on the top of the base. A docking groove adapted to the docking column is formed on the top end face of the mounting column, and a connection block with the same number as the fastening plates is provided on the outer side end face of the mounting column. A fastening seat is rotatably connected to the connection block, and a fastening groove for the fastening plate to be snapped into after rotation is formed in the fastening seat.

[0007] Preferably, a plurality of evenly and circumferentially distributed reinforcing insertion plates are provided on the outer side end face of the docking column close to the pile leg, and reinforcing slots corresponding to the reinforcing insertion plates one by one are formed on the inner side wall of the docking groove.

[0008] Preferably, a guiding column is provided on the bottom end face of the pile leg outside the docking column, and a guiding groove for the guiding column to be inserted into is formed on the top end face of the mounting column.

[0009] Preferably, a first fastening hole for inserting a fastening bolt is formed through the fastening plate, a second fastening hole communicating with the first fastening hole is formed in the fastening seat, and the second fastening hole communicates with the fastening groove.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] Through the detachable connection setting of the components on the pile shoe and the components on the pile leg, the present utility model facilitates the jack-up platform to replace the pile shoe according to different operating waters and geological conditions to adapt to the new operating environment, greatly improving the applicability. At the same time, it avoids the cracks in the welding area easily caused by the welded connection between the pile leg and the pile shoe, affecting the connection strength between the pile leg and the pile shoe and the safety of the entire platform, and improving the safety of the jack-up platform during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic structural diagram of the pile shoe of the present utility model;

[0014] Figure 3 is a schematic structural diagram of the pile leg of the present utility model;

[0015] In the figure: 1, pile shoe; 11, base; 12, mounting column; 13, docking groove; 14, strengthening slot; 15, guiding groove; 16, connecting block; 17, fastening seat; 18, fastening groove; 19, second fastening hole; 2, pile leg; 21, docking column; 22, first fastening hole; 23, strengthening insertion plate; 24, guiding column; 25, fastening plate; 3, fastening bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following describes in detail the preferred embodiments of the present utility model with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0017] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] Embodiment

[0019] An embodiment of the utility model provides a detachable pile shoe for a jack-up platform. Refer to Figures 1 - 3 As shown, it includes a pile shoe 1 and a leg 2 detachably connected thereto. Through the detachable connection setting of the components on the pile shoe 1 and the components on the leg 2, it is convenient for the jack-up platform to replace the pile shoe 1 according to different operating waters and geology to adapt to the new operating environment, greatly improving the applicability. At the same time, it avoids the cracks that are likely to occur in the welding area due to the welded connection between the leg 2 and the pile shoe 1, affecting the connection strength between the leg 2 and the pile shoe 1 and the safety of the entire jack-up platform, and improving the safety of the jack-up platform during use.

[0020] Refer to Figure 2 As shown, the pile shoe 1 includes a base 11 and a mounting column 12 provided on the top of the base 11. A docking groove 13 that fits the docking column 21 is opened on the top end face of the mounting column 12. Through the setting of the docking groove 13 and the docking column 31, the stability of the connection between the pile shoe 1 and the leg 2 is improved. A connection block 16 with the same number as the fastening plate 25 is provided on the outer end face of the mounting column 12. A fastening seat 17 is rotatably connected to the connection block 16. A fastening groove 18 for the fastening plate 25 to be clamped after rotation is opened in the fastening seat 17. Through the setting of the fastening groove 18 in the fastening seat 17 and the fastening plate 25, the tightness of the connection between the pile shoe 1 and the leg 2 is improved.

[0021] Refer to Figure 3 As shown, a docking column 21 is coaxially provided on the bottom end face of the leg 2. A plurality of fastening plates 25 evenly distributed in a circumferential manner are provided on the outer end face of the leg 2. A first fastening hole 22 for a fastening bolt 3 to pass through is opened through the fastening plate 25. A second fastening hole 19 communicating with the first fastening hole 22 is opened on the fastening seat 17. The second fastening hole 19 communicates with the fastening groove 18, and the second fastening hole 19 and the first fastening hole 22 are internal threaded holes with the same size.

[0022] Furthermore, a plurality of strengthening insertion plates 23 evenly distributed in a circumferential manner are provided on the outer end face of the docking column 21 close to the leg 2. The cross section of the strengthening insertion plate 23 is in a triangular structure. Strengthening slots 14 corresponding to the strengthening insertion plates 23 one by one are opened on the inner side wall of the docking groove 13. Through the setting of the strengthening slots 14 and the strengthening insertion plates 23, the displacement between the pile shoe 1 and the leg 2 is avoided.

[0023] Furthermore, a guiding column 24 is provided on the bottom end face of the leg 2 on the outer side of the docking column 21. The height of the guiding column 24 is greater than that of the reinforcing insertion plate 23. A guiding groove 15 for inserting the guiding column 24 is formed on the top end face of the mounting column 12. Through the arrangement of the guiding groove 15 and the guiding column 24, it is convenient for the staff to align and insert the reinforcing insertion plate 23 into the reinforcing slot 14, and at the same time, it is convenient for the fastening seat 17 to be rotationally engaged with the fastening plate 25 later, improving the connection efficiency between the pile shoe 1 and the leg 2.

[0024] When connecting the pile shoe 1 and the leg 2: First, align the docking column 21 on the leg 2 with the docking groove 13 on the pile shoe 1 for insertion. While maintaining the connection relationship between the docking column 21 and the docking groove 13, rotate the leg 2 so that the guiding column 24 on the leg 2 is aligned with the guiding groove 15 on the pile shoe 1 for insertion. When the guiding column 24 is inserted to the bottom of the guiding groove 15, the reinforcing insertion plate 23 on the docking column 21 is inserted into the reinforcing slot 14 on the pile shoe 1 along the trend, thus connecting the pile shoe 1 and the leg 2. Finally, rotate the fastening seat 17 on the pile shoe 1 so that the fastening groove 18 in the fastening seat 17 is engaged with the fastening plate 25 on the leg 2. At this time, the first fastening hole 22 on the fastening plate 25 is communicated with the second fastening hole 19 on the fastening seat 17. Insert the fastening bolt 3 into the communicated first fastening hole 22 and second fastening hole 19 for fixation, thereby improving the connection strength between the pile shoe 1 and the leg 2.

[0025] When the pile shoe 1 needs to be replaced, reverse the above operation to separate the pile shoe 1 and the leg 2, enabling the staff to replace the pile shoe 1 according to different working waters and geological conditions, greatly improving the applicability.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A detachable pile shoe of a self-elevating platform, comprising a pile shoe (1) and a pile leg (2) detachably connected thereto, characterized in that: A docking column (21) is coaxially arranged on the bottom end surface of the pile leg (2), and a plurality of evenly distributed fastening plates (25) are arranged on the outer end surface of the pile leg (2). The pile shoe (1) comprises a base (11) and a mounting column (12) arranged on the top of the base (11), a docking groove (13) matching with the docking column (21) is provided on the top end surface of the mounting column (12), and a connecting block (16) whose number is the same as the fastening plate (25) is provided on the outer end surface of the mounting column (12), and a fastening seat (17) is rotatably connected to the connecting block (16), and a fastening groove (18) is provided in the fastening seat (17) for the fastening plate (25) to be engaged after rotation.

2. The detachable pile shoe of a jack-up platform according to claim 1, characterized in that: A plurality of evenly distributed reinforcing plug plates (23) are provided on the outer end surface of the docking column (21) close to the pile leg (2), and reinforcing slots (14) corresponding to the reinforcing plug plates (23) are provided on the inner side wall of the docking groove (13).

3. The detachable pile shoe of a jack-up platform according to claim 1, characterized in that: A guide column (24) is provided on the bottom end surface of the pile leg (2) outside the docking column (21), and a guide groove (15) for the guide column (24) to be inserted is provided on the top end surface of the installation column (12).

4. The detachable pile shoe of a jack-up platform according to claim 1, characterized in that: The fastening plate (25) is provided with a first fastening hole (22) for inserting a fastening bolt (3), and the fastening seat (17) is provided with a second fastening hole (19) connected to the first fastening hole (22), and the second fastening hole (19) is connected to the fastening groove (18).

Images