Rapid pile foundation connecting device

Abstract

The invention relates to the technical field of offshore mooring, and discloses a quick pile foundation connecting device which comprises a base, a connecting rod, a connecting rod and a connecting rod. The locking mechanism comprises a locking part and a contact part arranged on the locking part, the locking part is slidably connected with the base, and a clamping groove is formed in the locking part; the connecting mechanism comprises a connecting part and a limiting part arranged on the connecting part, the connecting part is used for being connected with a mooring cable, clamping teeth are arranged on the connecting part, and the limiting part can be switched between an unfolded state and a folded state; wherein when the limiting part is in the contraction state, the limiting part can penetrate through the locking part and the contact part, and when the limiting part is in the unfolding state, the mooring rope 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, and the clamping groove is meshed with the clamping teeth. Quick connection and disassembly of the mooring rope and the pile foundation are achieved, the construction efficiency can be remarkably improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of offshore mooring, and in particular to a quick pile foundation connection device. Background Art

[0002] The tension leg platform is a kind of offshore oil and gas development engineering facility and equipment. Its principle is to use a semi-compliant and semi-rigid platform to generate buoyancy far greater than the structure's own weight, thereby balancing the pre-tension, thereby providing a relatively stable and safe working environment for production. Its own upright buoy structure also enables it to have good movement performance.

[0003] In a tension leg platform, the mooring cable needs to be connected to the pile foundation to ensure that the platform remains stable under external loads such as wind, waves, and currents, and to limit its range of motion. The existing connection method uses ROV and divers for underwater operations, which is complex and has a long cycle. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a quick pile foundation connection device, comprising:

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

[0007] A locking mechanism, comprising a locking portion and a contact portion arranged on the locking portion, wherein the locking portion is slidably connected to the base, and a card slot is arranged on the locking portion;

[0008] A connecting mechanism, comprising a connecting portion and a limiting portion arranged on the connecting portion, wherein the connecting portion is used to connect with a mooring cable, a latch is arranged on the connecting portion, and the limiting portion can be switched between an expanded state and a retracted state;

[0009] Wherein, when the limiting portion is in a retracted state, the limiting portion can pass through the locking portion and the contact portion, and when the limiting portion is in an expanded state, the limiting portion is pulled to move by the mooring cable so that the limiting portion abuts against the contact portion and pushes the locking portion to slide along the base, so that the slot engages with the tooth.

[0010] Optionally, the locking portion includes:

[0011] A plurality of sliding members are slidably connected to the base, the plurality of sliding members are circumferentially arranged, and the slots are formed on the plurality of sliding members.

[0012] Optionally, the base is provided with a conical cavity with two ends open, a plurality of guide slide blocks are provided on the inner side wall of the conical cavity, a guide slide groove is provided on the sliding member, and the plurality of guide slide blocks correspond to the plurality of guide slide grooves one by one and slideably cooperate with each other.

[0013] Optionally, the contact portion includes:

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

[0015] Optionally, the connecting portion includes:

[0016] The pin head is provided with a pin hole for connecting with a mooring cable, and the latching teeth are arranged on the pin head.

[0017] Optionally, the limiting portion includes:

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

[0019] A conical head connected to an end of the connecting column away from the pin head;

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

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

[0022] Optionally, slots and insertion rods are respectively provided at two ends of the sliding member, and the insertion rods are slidably matched with the slots on the adjacent sliding member.

[0023] Optionally, a groove is formed 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 restraint cover, which is arranged on the pile foundation, and the restraint cover covers the locking mechanism.

[0026] The present invention discloses the following technical effects: by connecting the mooring cable with the connecting part, the limiting part is switched to the expanded state after passing through the locking part and the contact part in sequence when the limiting part remains in the contracted state, so that the area of ​​the limiting part is larger than the contact part, and then the limiting part and the contact part are abutted against each other through the pulling force of the mooring cable, and then the locking part is pushed to slide, so that the card groove and the card tooth are engaged to realize the fixed engagement of the locking part and the connecting part, and the mooring cable is kept in a tightened state, thereby realizing the connection between the mooring cable and the pile foundation, and when disassembly is required, the tightened state of the mooring cable is released so that the limiting part descends with gravity, and the locking part and the contact part are automatically reset, and then the mooring cable and the pile foundation can be disassembled by pulling out the locking part and the contact part after the limiting part is changed to the contracted state, which is convenient to operate, and realizes the rapid 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 constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 It 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 It is an assembly diagram of the locking mechanism and the connecting mechanism of the present invention;

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

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

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

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

[0035] 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.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figure 1-Figure 6 The present invention provides a quick pile foundation connection device, comprising:

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

[0039] The locking mechanism comprises a locking portion 3 and a contact portion 4 arranged on the locking portion 3, wherein the locking portion 3 is slidably connected to the base 1, and a card slot 5 is arranged on the locking portion 3;

[0040] The connection mechanism comprises a connection part 6 and a limiting part 7 arranged on the connection part 6, wherein the connection part 6 is used to connect with the mooring cable, a latch 8 is arranged on the connection part 6, and the limiting part 7 can be switched between an expanded state and a retracted state;

[0041] Among them, when the limiting part 7 is in the retracted 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 slot 5 engages with the tooth 8.

[0042] The locking portion 3 and the contact portion 4 are automatically reset when the mooring cable is in a tensioned state. Then, the locking portion 3 and the contact portion 4 are pulled out of the tensioning force of the mooring cable, and the locking portion 3 is pushed to slide after the locking portion 3 and the contact portion 4 are abutted against each other, so that the locking groove 5 and the locking tooth 8 are meshed to achieve fixed engagement of the locking portion 3 and the connecting portion 6, and the mooring cable is kept in a tightened state, thereby achieving 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 portion 7 drops with gravity, and the locking portion 3 and the contact portion 4 are automatically reset. Then, the locking portion 3 and the contact portion 4 can be pulled out after the limiting portion 7 is changed to the contracted state, so as to achieve the disassembly of the mooring cable and the pile foundation 2. The operation is convenient, and the rapid connection and disassembly of the mooring cable and the pile foundation 2 can be achieved, which can significantly improve the construction efficiency and reduce the labor cost.

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

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

[0045] In one embodiment of the present invention, the locking portion 3 comprises:

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

[0047] The sliding of the plurality of sliding members 31 can change the size of the intermediate space therebetween, thereby realizing the switching of the engaging or disengaging state of the engaging slot 5 and the engaging teeth 8 .

[0048] In one embodiment of the present invention, the base 1 is provided with a conical cavity open at both ends, a plurality of guide sliders 11 are provided on the inner side wall of the conical cavity, a guide groove 32 is provided on the sliding member 31, and the plurality of guide sliders 11 correspond one by one to the plurality of guide grooves 32 and slide in cooperation with each other.

[0049] The guide slider 11 and the guide slot 32 cooperate with each other to limit the sliding direction of the sliding member 31, so that the sliding of multiple sliding members 31 can change the size of the intermediate space.

[0050] In one embodiment of the present invention, the contact portion 4 comprises:

[0051] The plurality of arc-shaped plates 41 correspond to and are connected to the plurality of sliding members 31 one by one.

[0052] In one embodiment of the present invention, the connecting portion 6 comprises:

[0053] The pin head 61 is provided with a pin hole 62 for connecting with a mooring line, and the latching tooth 8 is arranged on the pin head 61 .

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

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

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

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

[0058] The driving member 74 is used to drive the limiting rod 73 to rotate.

[0059] Furthermore, the driving member 74 is a connecting rope, and a connecting ring is provided on the limiting rod 73, and multiple connecting rings are connected to the connecting rope. By pulling the connecting rope, the multiple limiting rods 73 can be rotated on the conical head 72, so that the multiple limiting rods 73 are contracted in an umbrella shape, thereby changing the state of the limiting part 7.

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

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

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

[0063] The groove 42 is approximately a triangular structure. When the limiting rod 73 contacts the groove 42 , the limiting rod 73 can be guided by the groove 42 to reach the top of the groove 42 , so that the limiting rod 73 can accurately reach the preset position.

[0064] In one embodiment of the present invention, two adjacent arc-shaped plates 41 are stacked to facilitate the contraction of the multiple arc-shaped plates 41 and avoid interference between them.

[0065] In one embodiment of the present invention, a restraint cover 9 is further included, 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 restraining cover 9 can be used to restrain the position of the limiting portion 7 to prevent the limiting portion 7 from being excessively dislocated.

[0067] Method of use: connect the mooring cable to the pin hole 62 on the pin head 61, and then pass the connecting column 71 with the mooring cable and the conical head 72 through the multiple sliding members 31 and the arc plate 41 in sequence. During the insertion process, since the limiting rod 73 and the conical head 72 are rotatably connected, the multiple limiting rods 73 can automatically be retracted after being stressed. When the multiple limiting rods 73 are located below the arc plate 41, the multiple limiting rods 73 are automatically expanded under the action of gravity, and the conical head 72 limits the expansion angle of the limiting rod 73. Then pull the mooring cable to make the limiting rod 73 contact the groove 42. The arc plate 41 and the sliding member 31 are pushed to move. Due to the guiding effect of the guide slider 11 and the guide slot 32, the multiple sliding members 31 are contracted, so that the card slot 5 can mesh with the card tooth 8 to achieve locking, and at the same time, the mooring cable is kept in a tensioned state to achieve the connection between the mooring cable and the pile foundation 2. When disassembling, the mooring cable is loosened, and the limit rod 73 is automatically separated from the groove 42 by gravity, so that the multiple sliding members 31 are automatically reset by gravity, and then the multiple limit rods 73 are contracted by pulling the connecting rope, and then the mooring cable is pulled 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 terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0069] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A quick pile foundation connection device, characterized in that: include: A base (1) is rotatably arranged on a pile foundation (2); A locking mechanism, comprising a locking portion (3) and a contact portion (4) arranged on the locking portion (3), wherein the locking portion (3) is slidably connected to the base (1), and a locking slot (5) is arranged on the locking portion (3); A connecting mechanism, comprising a connecting portion (6) and a limiting portion (7) arranged on the connecting portion (6), wherein the connecting portion (6) is used to connect to a mooring cable, a latching tooth (8) is arranged on the connecting portion (6), and the limiting portion (7) can be switched between an expanded state and a retracted state; When the limiting portion (7) is in a retracted state, the limiting portion (7) can pass through the locking portion (3) and the contact portion (4); when the limiting portion (7) is in an extended state, the limiting portion (7) is pulled by the mooring cable to move, so that the limiting portion (7) abuts against the contact portion (4) and pushes the locking portion (3) to slide along the base (1), so that the locking groove (5) is engaged with the locking tooth (8).

2. A quick pile foundation connection device according to claim 1, characterized in that: The locking portion (3) comprises: A plurality of sliding members (31) are slidably connected to the base (1); the plurality of sliding members (31) are circumferentially arranged; and the clamping grooves (5) are provided on the plurality of sliding members (31).

3. A quick pile foundation connection device according to claim 2, characterized in that: The base (1) is provided with a conical cavity with two ends open, and the inner side wall of the conical cavity is provided with a plurality of guide slide blocks (11). The sliding member (31) is provided with a guide slide groove (32), and the plurality of guide slide blocks (11) correspond to the plurality of guide slide grooves (32) one by one and are slidably matched.

4. A quick pile foundation connection device according to claim 2, characterized in that: The contact portion (4) comprises: The plurality of arc-shaped plates (41) correspond one-to-one to and are connected to the plurality of sliding members (31).

5. A quick pile foundation connection device according to claim 4, characterized in that: The connecting portion (6) comprises: The pin head (61) is provided with a pin hole (62) for connecting with a mooring cable, and the latching tooth (8) is arranged on the pin head (61).

6. A quick pile foundation connection device according to claim 5, characterized in that: The limiting portion (7) comprises: A connecting column (71) connected to the pin head (61); A conical head (72) connected to an end of the connecting column (71) away from the pin head (61); A plurality of limit rods (73) are rotatably arranged on the connecting column (71), and the plurality of limit rods (73) are circumferentially arranged to correspond one to one to the plurality of arc-shaped plates (41); A driving member (74) is used to drive the limiting rod (73) to rotate.

7. A quick pile foundation connection device according to claim 2, characterized in that: A slot (33) and an insertion rod (34) are respectively provided at both ends of the sliding member (31), and the insertion rod (34) is slidably matched with the slot (33) on the adjacent sliding member (31).

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

9. A quick pile foundation connection device according to claim 4, characterized in that: The two adjacent arc-shaped plates (41) are stacked.

10. A quick pile foundation connection device according to claim 1, characterized in that: It also comprises a restraining cover (9) which is arranged on the pile foundation (2), and the restraining cover (9) covers the locking mechanism.

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