A fast pile foundation connection device

Abstract

The present invention relates to the technical field of offshore mooring, and discloses a quick pile foundation connection device, which includes a base rotatably arranged on the pile foundation; a locking mechanism includes a locking part and a contact part arranged on the locking part. The locking part is slidably connected to the base, and a card slot is arranged on the locking part; a connection mechanism includes a connection part and a limiting part arranged on the connection part. The connection part is used to connect with the mooring cable, and a card tooth is arranged on the connection part. The limiting part can be switched between an unfolded state and a contracted state; wherein, when the limiting part is in the contracted state, the limiting part can pass through the locking part and the contact part. When the limiting part is in the unfolded state, the mooring cable pulls the limiting part to move, so that the limiting part abuts against the contact part and pushes the locking part to slide along the base, so that the card slot meshes with the card tooth. The operation of the present invention is convenient, realizing the quick connection and disassembly of the mooring cable and the pile foundation, which can significantly improve the construction efficiency and reduce the labor cost.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore mooring, and particularly to a rapid pile foundation connection device. Background Art

[0002] A tension leg platform is an offshore oil and gas development engineering facility and equipment. Its principle is to utilize a semi-compliant and semi-rigid platform to generate buoyancy far greater than the structural self-weight, so as to balance with the pre-tension, providing a relatively stable and safe working environment for production. And its upright floating barrel structure can also endow it with good motion performance.

[0003] In a tension leg platform, it is necessary to connect the mooring cable to the pile foundation to ensure that the platform remains stable under the action of external loads such as wind, waves, and currents, and to limit its movement range. The existing connection method generally adopts underwater operations by ROV and divers, which is complex in operation and long in cycle. Summary of the Invention

[0004] The purpose of the present invention is to provide a rapid pile foundation connection device, aiming to solve or improve at least one of the above technical problems.

[0005] To achieve the above purpose, the present invention provides the following solution: The present invention provides a rapid pile foundation connection device, including:

[0006] A base rotatably arranged on the pile foundation;

[0007] A locking mechanism including a locking part and a contact part arranged on the locking part. The locking part is slidably connected to the base, and a card slot is arranged on the locking part;

[0008] A connecting mechanism including a connecting part and a limiting part arranged on the connecting part. The connecting part is used to connect with the mooring cable, a card tooth is arranged on the connecting part, and the limiting part can be switched between an unfolded state and a contracted state;

[0009] Wherein, when the limiting part is in the contracted state, the limiting part can pass through the locking part and the contact part. When the limiting part is in the unfolded state, the limiting part is pulled by the mooring cable to move, so that the limiting part abuts against the contact part and pushes the locking part to slide along the base, so that the card slot meshes with the card tooth.

[0010] Optionally, the locking part includes:

[0011] A plurality of sliding parts slidably connected to the base. The plurality of sliding parts are circumferentially arranged, and the card slot is opened on the plurality of sliding parts.

[0012] Optionally, the base is provided with a tapered cavity with both ends open. The inner side wall of the tapered cavity is provided with a plurality of guiding sliders, and the sliding member is provided with guiding sliding grooves. The plurality of guiding sliders correspond to and are in sliding fit with the plurality of guiding sliding grooves one by one.

[0013] Optionally, the contact part includes:

[0014] A plurality of arc-shaped plates, corresponding to and connected to the plurality of sliding members one by one.

[0015] Optionally, the connecting part includes:

[0016] A pin head, provided with a pin hole for connecting to a mooring cable, and the locking teeth are arranged on the pin head.

[0017] Optionally, the limiting part includes:

[0018] A connecting column, connected to the pin head;

[0019] A tapered head, connected to one end of the connecting column away from the pin head;

[0020] A plurality of limiting rods, rotatably arranged on the connecting column, and the plurality of limiting rods are circumferentially arranged corresponding to the plurality of arc-shaped plates one by one;

[0021] A driving member, used to drive the limiting rod to rotate.

[0022] Optionally, the two ends of the sliding member are respectively provided with a slot and a plug rod, and the plug rod is in sliding fit with the slot on the adjacent sliding member.

[0023] Optionally, a groove is opened at one end of the arc-shaped plate away from the sliding member.

[0024] Optionally, two adjacent arc-shaped plates are stacked.

[0025] Optionally, it further includes a constraint cover, arranged on the pile foundation, and the constraint cover covers the locking mechanism.

[0026] The present invention discloses the following technical effects: By connecting the mooring cable to the connecting part, when the limiting part is in a contracted state, it passes through the locking part and the contact part in sequence, and then the limiting part is switched to an expanded state, so that the area of the limiting part is larger than that of the contact part. Then, due to the tension of the mooring cable, the limiting part abuts against the contact part and pushes the locking part to slide, so that the card slot meshes with the tooth to realize the fixed engagement of the locking part and the connecting part, and the mooring cable is kept in a tightened state, thus realizing the connection between the mooring cable and the pile foundation. When disassembly is required, the tightened state of the mooring cable is released, and the limiting part drops under gravity. At the same time, the locking part and the contact part automatically reset. Furthermore, the locking part and the contact part can be pulled out after changing the limiting part to a contracted state, realizing the disassembly of the mooring cable and the pile foundation. The operation is convenient, realizing the quick connection and disassembly of the mooring cable and the pile foundation, which can significantly improve the construction efficiency and reduce the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a cross-sectional view of the present invention;

[0030] Figure 3 is an assembly drawing of the locking mechanism and the connecting mechanism of the present invention;

[0031] Figure 4 is a schematic diagram of the structure of the locking mechanism of the present invention;

[0032] Figure 5 is a schematic diagram of the structure of the rotating seat of the present invention;

[0033] Figure 6 is a schematic diagram of the structure of the connecting mechanism of the present invention.

[0034] In the figure: 1, base; 11, guiding slider; 12, outer shell; 13, rotating seat; 2, pile foundation; 3, locking part; 31, sliding part; 32, guiding chute; 33, slot; 34, inserting rod; 4, contact part; 41, arc-shaped plate; 42, groove; 5, card slot; 6, connecting part; 61, pin head; 62, pin hole; 7, limiting part; 71, connecting column; 72, conical head; 73, limiting rod; 74, driving part; 8, tooth; 9, restraining cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0036] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Referring to Figures 1-6 , the present invention provides a rapid pile foundation connection device, including:

[0038] A base 1 rotatably arranged on a pile foundation 2;

[0039] A locking mechanism, including a locking part 3 and a contact part 4 arranged on the locking part 3. The locking part 3 is slidably connected to the base 1, and a card slot 5 is arranged on the locking part 3;

[0040] A connecting mechanism, including a connecting part 6 and a limiting part 7 arranged on the connecting part 6. The connecting part 6 is used to connect with a mooring cable, a card tooth 8 is arranged on the connecting part 6, and the limiting part 7 can be switched between an expanded state and a contracted state;

[0041] Among them, when the limiting part 7 is in the contracted state, the limiting part 7 can pass through the locking part 3 and the contact part 4. When the limiting part 7 is in the expanded state, the mooring cable pulls the limiting part 7 to move, so that the limiting part 7 abuts against the contact part 4 and pushes the locking part 3 to slide along the base 1, so that the card slot 5 meshes with the card tooth 8.

[0042] By connecting the mooring cable to the connecting part 6, when the limiting part 7 remains in the contracted state and passes through the locking part 3 and the contact part 4 in sequence, the limiting part 7 is switched to the expanded state, so that the area of the limiting part is larger than that of the contact part 4. Then, the pulling force of the mooring cable makes the limiting part 7 abut against the contact part 4 and pushes the locking part 3 to slide, so that the card slot 5 meshes with the card tooth 8 to realize the fixed clamping of the locking part 3 and the connecting part 6, and the mooring cable is kept in a tightened state, thus realizing the connection between the mooring cable and the pile foundation 2. When disassembly is required, the tightened state of the mooring cable is released, so that the limiting part 7 drops with gravity, and at the same time, the locking part 3 and the contact part 4 automatically reset. Furthermore, by changing the limiting part 7 to the contracted state and pulling out the locking part 3 and the contact part 4, the disassembly of the mooring cable and the pile foundation 2 can be realized. The operation is convenient, the rapid connection and disassembly of the mooring cable and the pile foundation 2 are realized, the construction efficiency can be significantly improved, and the labor cost is reduced.

[0043] Furthermore, the base 1 includes a housing 12 and a rotating seat 13 rotatably fitted within the housing 12. A conical cavity is formed on the rotating seat 13, and the inner concave surface of the housing 12 is treated with a low-friction coating.

[0044] The rotating seat 13 and the housing 12 can rotate ±15 degrees in any direction.

[0045] In an embodiment of the present invention, the locking portion 3 includes:

[0046] A plurality of sliding members 31, slidably connected to the base 1. The plurality of sliding members 31 are circumferentially arranged, and the card slots 5 are formed on the plurality of sliding members 31.

[0047] Sliding of the plurality of sliding members 31 can change the size of the intermediate space, thereby realizing the switching between the engaged and disengaged states of the card slot 5 and the teeth 8.

[0048] In an embodiment of the present invention, the base 1 is provided with a conical cavity with both ends open. A plurality of guiding sliders 11 are provided on the inner side wall of the conical cavity. Guiding chutes 32 are formed on the sliding members 31. The plurality of guiding sliders 11 and the plurality of guiding chutes 32 correspond to each other one by one and are slidably engaged.

[0049] The cooperation between the guiding sliders 11 and the guiding chutes 32 defines the sliding direction of the sliding members 31, and can achieve the effect of changing the size of the intermediate space by sliding the plurality of sliding members 31.

[0050] In an embodiment of the present invention, the contact portion 4 includes:

[0051] A plurality of arc-shaped plates 41, corresponding to and connected to the plurality of sliding members 31 one by one.

[0052] In an embodiment of the present invention, the connecting portion 6 includes:

[0053] A pin head 61, provided with a pin hole 62 for connecting to a mooring cable. The teeth 8 are provided on the pin head 61.

[0054] In an embodiment of the present invention, the limiting portion 7 includes:

[0055] A connecting column 71, connected to the pin head 61;

[0056] A conical head 72, connected to the end of the connecting column 71 away from the pin head 61;

[0057] A plurality of limiting rods 73, rotatably arranged on the connecting column 71. The plurality of limiting rods 73 are circumferentially arranged and correspond to the plurality of arc-shaped plates 41 one by one;

[0058] A driving member 74, used to drive the limiting rods 73 to rotate.

[0059] Further, the driving member 74 is a connecting rope. A connecting ring is provided on the limiting rod 73. A plurality of connecting rings are connected to the connecting rope. By pulling the connecting rope, the plurality of limiting rods 73 can rotate on the conical head 72, so that the plurality of limiting rods 73 contract in an umbrella shape, changing the state of the limiting portion 7.

[0060] In an embodiment of the present invention, slots 33 and insertion rods 34 are respectively provided at both ends of the sliding member 31. The insertion rod 34 is slidably matched with the slot 33 on the adjacent sliding member 31.

[0061] The cooperation of the slot 33 and the insertion rod 34 can improve the stability between the plurality of sliding members 31.

[0062] In an embodiment of the present invention, a groove 42 is formed at one end of the arc-shaped plate 41 away from the sliding member 31.

[0063] The groove 42 is of an approximate triangular structure. After the limiting rod 73 contacts the groove 42, following the guidance of the groove 42, the limiting rod 73 can reach the vertex of the groove 42, enabling the limiting rod 73 to accurately reach the preset position.

[0064] In an embodiment of the present invention, two adjacent arc-shaped plates 41 are stacked, which is convenient for the contraction of the plurality of arc-shaped plates 41 and avoids interference between them.

[0065] In an embodiment of the present invention, it further includes a restraint cover 9, which is arranged on the pile foundation 2 and the restraint cover 9 covers the locking mechanism.

[0066] After the limiting portion 7 passes through the contact portion 4, the restraint cover 9 can be used to restrain the position of the limiting portion 7 to prevent the limiting portion 7 from being overly displaced.

[0067] Usage method: Connect the mooring cable to the pin hole 62 on the pin head 61, and then sequentially pass the connecting column 71 and the conical head 72 with the mooring cable through a plurality of sliding members 31 and the arc-shaped plate 41. During the insertion process, since the limiting rod 73 and the conical head 72 are rotatably connected, the plurality of limiting rods 73 can automatically contract under force. When the plurality of limiting rods 73 are located below the arc-shaped plate 41, due to the gravity, the plurality of limiting rods 73 automatically expand. At the same time, the conical head 72 limits the expansion angle of the limiting rods 73. Then, pull the mooring cable so that the limiting rods 73 contact the groove 42 and push the arc-shaped plate 41 and the sliding members 31 to move. Due to the guiding action of the guiding slider 11 and the guiding groove 32, the plurality of sliding members 31 contract, so that the clamping groove 5 can be engaged with the teeth 8 to achieve locking, and at the same time, the mooring cable is kept in a tensioned state to realize the connection between the mooring cable and the pile foundation 2. During disassembly, loosen the mooring cable, and the limiting rods 73 automatically separate from the groove 42 due to gravity, so that the plurality of sliding members 31 automatically reset due to gravity. Then, by pulling the connecting rope, the plurality of limiting rods 73 are contracted, and then pull the mooring cable to separate the entire connecting mechanism from the pile foundation 2.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention, 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 should not be construed as a limitation to the present invention.

[0069] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A fast pile foundation connection device, characterized in that, Comprising: A base (1) rotatably arranged on a pile foundation (2); A locking mechanism including a locking part (3) and a contact part (4) arranged on the locking part (3), the locking part (3) is slidably connected to the base (1), and a clamping groove (5) is arranged on the locking part (3); A connecting mechanism including a connecting part (6) and a limiting part (7) arranged on the connecting part (6), the connecting part (6) is used for connecting with a mooring cable, a clamping tooth (8) is arranged on the connecting part (6), and the limiting part (7) can be switched between an unfolded state and a contracted state; Wherein, when the limiting part (7) is in the contracted state, the limiting part (7) can pass through the locking part (3) and the contact part (4), and when the limiting part (7) is in the unfolded state, the mooring cable pulls the limiting part (7) to move, so that the limiting part (7) abuts against the contact part (4) and pushes the locking part (3) to slide along the base (1), so that the clamping groove (5) meshes with the clamping tooth (8); The locking part (3) includes: A plurality of sliding members (31) slidably connected to the base (1), the plurality of sliding members (31) are circumferentially arranged, and the clamping groove (5) is formed on the plurality of sliding members (31); The contact part (4) includes: A plurality of arc-shaped plates (41) corresponding to and connected to the plurality of sliding members (31) one by one; The connecting part (6) includes: A pin head (61) provided with a pin hole (62) for connecting with a mooring cable, and the clamping tooth (8) is arranged on the pin head (61); The limiting part (7) includes: A connecting column (71) connected to the pin head (61); A conical head (72) connected to one end of the connecting column (71) away from the pin head (61); A plurality of limiting rods (73) rotatably arranged on the connecting column (71), the plurality of limiting rods (73) are circumferentially arranged and correspond to the plurality of arc-shaped plates (41) one by one; A driving member (74) for driving the limiting rods (73) to rotate.

2. The quick pile foundation connection device according to claim 1, characterized in that, The base (1) is provided with a conical cavity with both ends open, the inner side wall of the conical cavity is provided with a plurality of guiding sliders (11), the sliding members (31) are provided with guiding sliding grooves (32), and the plurality of guiding sliders (11) correspond to and are slidably matched with the plurality of guiding sliding grooves (32) one by one.

3. The quick pile foundation connection device according to claim 1, characterized in that, Both ends of the sliding member (31) are respectively provided with a slot (33) and a plug rod (34), and the plug rod (34) is slidably matched with the slot (33) on the adjacent sliding member (31).

4. A rapid pile foundation connection device according to claim 1, characterized in that, A groove (42) is formed at one end of the arc-shaped plate (41) away from the sliding member (31).

5. A rapid pile foundation connection device according to claim 1, characterized in that, Two adjacent arc-shaped plates (41) are stacked.

6. The quick pile foundation connection device according to claim 1, characterized in that, It further includes a constraint cover (9) arranged on the pile foundation (2), and the constraint cover (9) covers the locking mechanism.

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