Monitoring and adjusting structure for positioning penetration process of offshore suction anchor

Abstract

The utility model relates to the technical field of suction anchors, and discloses an offshore suction anchor positioning penetration process monitoring and adjusting structure which comprises a barrel, a negative pressure connector and an eye plate are arranged on the surface of the barrel, and a monitoring mechanism and a combination mechanism are arranged on the top of the barrel. The monitoring mechanism comprises a first waterproof shell, a second waterproof shell and a relay buoy, a GPS positioner, an attitude instrument, a controller and a sound wave modulation module are fixed in the first waterproof shell, a transducer array is fixed at the top of the first waterproof shell, a pressure sensor and a height sensor are embedded in the inner wall of the cylinder, and the pressure sensor is connected with the pressure sensor. And an armored waterproof cable is arranged in the second waterproof shell. According to the monitoring and adjusting structure for the positioning penetration process of the offshore suction anchor, through a slope locking mechanism of the spring and the wedge-shaped plate, rapid installation and stable fixation of the monitoring mechanism are achieved, and compared with traditional bolt connection, the efficiency is remarkably improved.

Description

A monitoring and adjustment structure for the sinking process of a marine suction anchor. Technical Field

[0001] This utility model relates to the field of suction anchor technology, specifically a monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor. Background Technology

[0002] A suction anchor is a steel barrel-shaped structure that is closed at the top and open at the bottom. The top cover of the suction anchor has a water extraction hole connected to a pumping line. When the suction anchor is in operation, it first sinks to a certain depth on the seabed under its own weight. Then, a pump system draws water out of the suction anchor's barrel, creating a negative pressure within the closed barrel, which generates a downward thrust, pressing the barrel into the soil to a predetermined depth. When the suction anchor is retrieved, the pump system reverses its operation, injecting water into the barrel to make the internal pressure greater than the external pressure. This positive pressure difference pushes the anchor out of the mud.

[0003] Utility model patent CN115031685A discloses an underwater sinking monitoring system and its operation method, including a cylinder and a cover. An eyeplate is installed on the cylinder. The sinking mechanism includes a suction pump connected to a suction anchor negative pressure interface. The monitoring mechanism includes a mounting frame, an attitude sensor, an ultra-short baseline positioning module, a height sensor, and a pressure sensor. The attitude sensor monitors the levelness of the cover and the azimuth angle of the eyeplate. The ultra-short baseline positioning module monitors the position of the suction anchor and its depth from the water surface. The height sensor monitors the soil height inside the cylinder of the suction anchor. The pressure sensor monitors the pressure inside the cylinder. This underwater sinking monitoring system can simultaneously monitor multiple real-time data points during the suction anchor sinking process, improving sinking accuracy and construction efficiency.

[0004] However, the above-mentioned existing technical solutions still have the following shortcomings: the device needs to be fixed to the mounting frame with bolts, which is time-consuming during loading and unloading, and there is a risk of bolt rusting, resulting in low construction efficiency. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor, so as to solve the problems mentioned in the background technology.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor, including a cylinder, a negative pressure interface and an eye plate provided on the surface of the cylinder, and a monitoring mechanism and a combination mechanism provided on the top of the cylinder;

[0007] The monitoring mechanism includes a first waterproof shell, a second waterproof shell, and a relay buoy. The first waterproof shell houses a GPS locator, an attitude sensor, a controller, and an acoustic modulation module. A transducer array is fixed to the top of the first waterproof shell. A pressure sensor and a height sensor are embedded in the inner wall of the cylinder. An armored waterproof cable is installed inside the second waterproof shell, passing through it and connecting to the pressure sensor and the height sensor. An installation groove is provided above the first waterproof shell, and a connector is fixed to the surface of the installation groove. A socket for use with the connector is fixed to the bottom of the first waterproof shell, and the armored waterproof cable is connected to the connector. Connecting plates are fixed to both the front and rear sides of the first waterproof shell.

[0008] Preferably, the combined mechanism includes two connecting shells and a combined plate. The combined plate is fixed to the top of the cylinder, the connecting shell is fixed to the bottom of the connecting plate, a spring is fixed to the inner wall of the connecting shell, a wedge plate is fixed to one end of the spring, and a limiting groove is opened on the surface of the combined plate to accommodate the wedge plate. The wedge plate is designed to face downwards.

[0009] Preferably, two guide plates are fixed on both the front and rear sides of the connecting shell, and the surface of the combined plate is provided with guide grooves for inserting the guide plates.

[0010] Preferably, a connecting rod is fixed to the surface of the wedge plate, the connecting rod slides through the connecting shell, and a pull plate is fixed to one end of the connecting rod.

[0011] Preferably, a telescopic rod is provided on the inner side of the spring, one end of the telescopic rod is fixedly connected to the surface of the wedge plate, and the other end of the telescopic rod is fixedly connected to the inner wall of the connecting shell.

[0012] Preferably, the height sensor is fitted with a miniature waterproof shell, and the pressure sensor is a fully sealed piezoresistive sensor.

[0013] Preferably, a sealing gasket is fixed to the bottom of the first waterproof outer shell, the socket is located inside the sealing gasket, and a sealing groove is provided on the top of the cylinder to cooperate with the sealing gasket.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] First, this utility model achieves simultaneous acquisition of multiple parameters and high-reliability transmission through a highly integrated first waterproof shell and split sensor design; the coordinated work of the GPS locator and attitude sensor significantly improves the horizontal positioning and orientation control accuracy of the suction anchor; the acoustic communication link breaks through the limitations of traditional wired transmission and adapts to the complex environment of the deep sea; the embedded installation scheme of the pressure sensor and altitude sensor avoids external interference and extends the sensor life; the armored waterproof cable and quick-connect structure simplify the wiring difficulty and reduce construction costs.

[0016] Secondly, this utility model achieves rapid installation and stable fixation of the monitoring mechanism through the inclined locking mechanism of spring and wedge plate, which significantly improves efficiency compared with traditional bolt connection; the guiding design of guide plate and guide groove reduces manual intervention and ensures installation accuracy; the redundant design of telescopic rod and pull plate enhances the impact resistance of the mechanism and adapts to harsh sea conditions; the overall assembly mechanism can be disassembled and assembled without professional tools, which greatly shortens the construction cycle and reduces maintenance difficulty. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 is a cross-sectional three-dimensional structural diagram of this utility model;

[0019] Figure 3 is a partial cross-sectional structural diagram of the monitoring mechanism in this utility model;

[0020] Figure 4 is a partial cross-sectional structural diagram of the monitoring mechanism in this utility model;

[0021] Figure 5 is a partial structural schematic diagram of the monitoring mechanism in this utility model;

[0022] Figure 6 is a cross-sectional structural diagram of the combined mechanism in this utility model.

[0023] The components include: 1. Cylinder; 2. Negative pressure interface; 3. Eye plate; 4. Monitoring mechanism; 401. First waterproof shell; 402. GPS locator; 403. Attitude sensor; 404. Controller; 405. Acoustic modulation module; 406. Pressure sensor; 407. Height sensor; 408. Second waterproof shell; 409. Armored waterproof cable; 410. Connector; 411. Socket; 412. Transducer array; 413. Connecting plate; 414. Sealing gasket; 5. Assembly mechanism; 501. Connecting shell; 502. Assembly plate; 503. Spring; 504. Wedge plate; 505. Limiting groove; 506. Connecting rod; 507. Pull plate; 508. Guide plate; 509. Guide groove; 510. Telescopic rod; 6. Mounting groove. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0025] Please refer to Figures 1-6. A monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor includes a cylinder 1, a negative pressure interface 2 and an eye plate 3 on the surface of the cylinder 1, and a monitoring mechanism 4 and a combination mechanism 5 on the top of the cylinder 1.

[0026] The monitoring mechanism 4 includes a first waterproof housing 401, a second waterproof housing 408, and a relay buoy. The first waterproof housing 401 houses a GPS locator 402, an attitude sensor 403, a controller 404, and an acoustic modulation module 405. A transducer array 412 is fixed to the top of the first waterproof housing 401. A pressure sensor 406 and a height sensor 407 are embedded in the inner wall of the cylinder 1. An armored waterproof cable 409 is installed inside the second waterproof housing 408, passing through the second waterproof housing 408 and connecting to the pressure sensor 406 and the height sensor 407. The cylinder 1 is connected to the degree sensor 407. An installation groove 6 is provided above the first waterproof shell 401. A connector 410 is fixed on the surface of the installation groove 6. A socket 411 for use with the connector 410 is fixed at the bottom of the first waterproof shell 401. The armored waterproof cable 409 is connected to the connector 410. Connecting plates 413 are fixed on both the front and rear sides of the first waterproof shell 401. The relay buoy is a solar buoy deployed on the water surface. It has a built-in sound wave receiver and radio frequency transmission module. After receiving the signal from the water transducer array 412, it converts it into radio signals and transmits them back to the control center.

[0027] Through the above technical solution, the monitoring mechanism 4 integrates a GPS locator 402, an attitude sensor 403, a controller 404, and an acoustic modulation module 405 through a first waterproof outer shell 401. The GPS locator 402 acquires the horizontal position coordinates of the suction anchor in real time; the attitude sensor 403 monitors the tilt angle of the cylinder 1 and the azimuth angle of the eye plate 3; the controller 404 fuses sensor data and encodes the signals into acoustic pulses through the acoustic modulation module 405, which are then emitted into the water by the transducer array 412; a pressure sensor 406 and a height sensor are located on the inner wall of the cylinder 1. Device 407 is connected to the second waterproof housing 408 via armored waterproof cable 409. Data is transmitted to the first waterproof housing 401 via connector 410 and socket 411. Finally, the signal is converted into radio signals and transmitted back to the control center via a relay buoy. Real-time position and attitude monitoring of the suction anchor is achieved by integrating GPS locator 402 and attitude instrument 403, reducing reliance on shipboard equipment. Acoustic modulation module 405 is combined with transducer array 412 to solve the problem of easy tangling of traditional wired transmission by utilizing the strong penetration and wide coverage of underwater acoustic communication.

[0028] The combined mechanism 5 includes two connecting shells 501 and a combined plate 502. The combined plate 502 is fixed to the top of the cylinder 1, and the connecting shells 501 are fixed to the bottom of the connecting plate 413. A spring 503 is fixed to the inner wall of the connecting shell 501. A wedge plate 504 is fixed to one end of the spring 503. A limiting groove 505 is opened on the surface of the combined plate 502 to accommodate the wedge plate 504. The wedge plate 504 is designed to face downwards at an angle.

[0029] Through the above technical solution, the assembly mechanism 5 achieves the rapid installation of the first waterproof outer shell 401 through the mechanical cooperation between the connecting shell 501 and the assembly plate 502; the wedge plate 504 enters the connecting shell 501 with its own inclined surface, causing the spring 503 to be compressed. After the first waterproof outer shell 401 is installed in place, the spring 503 pushes the wedge plate 504 into the limiting groove 505 to lock the first waterproof outer shell 401. One-click locking is achieved through the inclined cooperation between the spring 503 and the wedge plate 504, which is more efficient than traditional bolt connection.

[0030] Two guide plates 508 are fixed on both the front and rear sides of the connecting shell 501, and a guide groove 509 is opened on the surface of the combination plate 502 to accommodate the guide plates 508.

[0031] Through the above technical solution, the guide plate 508 and the guide groove 509 guide the installation path of the connecting shell 501 and the combination plate 502 through sliding cooperation, ensuring that the two are aligned in the vertical direction, reducing manual alignment errors and improving installation efficiency.

[0032] A connecting rod 506 is fixed to the surface of the wedge plate 504. The connecting rod 506 slides through the connecting shell 501, and a pull plate 507 is fixed to one end of the connecting rod 506.

[0033] With the above technical solution, the connecting rod 506 and the pull plate 507 constitute a manual unlocking mechanism. When the pull plate 507 is pulled, the wedge plate 504 is disengaged from the limiting groove 505, and the locking state is released. This unlocking operation is simple and quick and can be completed by a single person.

[0034] A telescopic rod 510 is provided inside the spring 503. One end of the telescopic rod 510 is fixedly connected to the surface of the wedge plate 504, and the other end of the telescopic rod 510 is fixedly connected to the inner wall of the connecting shell 501.

[0035] Through the above technical solution, the telescopic rod 510 restricts the movement trajectory of the wedge plate 504, prevents the spring 503 from being over-compressed or stretched, and also avoids the spring 503 from bending.

[0036] The height sensor 407 is fitted with a miniature waterproof housing, which is encapsulated with sound-permeable material. The pressure sensor 406 is a fully sealed piezoresistive sensor. The outer shell of the pressure sensor 406 is welded to the inner wall of the cylinder 1. The sensing diaphragm is in contact with seawater, and the internal circuit is protected by silicone potting.

[0037] Through the above technical solutions, the miniature waterproof shell prevents water vapor from corroding the electronic components of the height sensor 407, and the sound-transmitting design does not affect the accuracy of ultrasonic ranging; the welding and potting process of the pressure sensor 406 ensures long-term underwater durability, and the diaphragm directly contacts the medium to improve measurement sensitivity.

[0038] The bottom of the first waterproof outer shell 401 is fixed with a sealing gasket 414, the socket 411 is located inside the sealing gasket 414, and the top of the cylinder 1 is provided with a sealing groove for use with the sealing gasket 414.

[0039] Through the above technical solution, the sealing gasket 414 achieves waterproofing by filling the gap of the sealing groove through compression deformation, thus preventing water flow from impacting and damaging the interface.

[0040] Working principle: First, the connecting shell 501 is pressed down by aligning the guide groove 509 with the guide plate 508. The spring 503 pushes the wedge plate 504 into the limiting groove 505 to complete the locking. Then, the connector 410 is inserted into the socket 411, and the sealing gasket 414 is pressed with the sealing groove to ensure waterproofing. This realizes the installation of the first waterproof shell 401 and the cylinder 1. During the sinking of the suction anchor, the GPS locator 402 provides real-time feedback on the position deviation, the attitude sensor 403 monitors the tilt angle, and the pressure sensor 406 and height sensor 407 collect the pressure of the cylinder 1 and the soil elevation. After the controller 404 integrates the data, it drives the transducer array 412 to emit coded sound waves through the acoustic modulation module 405. The relay buoy receives the signal and converts it into radio waves, which are then transmitted to the control center. The control center generates a suction pump adjustment command, which is sent to the controller 404 through the reverse communication link to dynamically adjust the suction rate of the negative pressure interface 2 and correct the suction anchor posture until the preset sinking depth is reached, thus completing the positioning, sinking and adjustment operation of the suction anchor.

[0041] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor, comprising a cylinder (1), wherein a negative pressure interface (2) and an eye plate (3) are provided on the surface of the cylinder (1), characterized in that: The top of the cylindrical body (1) is provided with a monitoring mechanism (4) and a combination mechanism (5); the monitoring mechanism (4) includes a first waterproof shell (401), a second waterproof shell (408) and a relay buoy. The first waterproof shell (401) is fixed with a GPS locator (402), an attitude sensor (403), a controller (404) and an acoustic modulation module (405). The top of the first waterproof shell (401) is fixed with a transducer array (412). The inner wall of the cylindrical body (1) is embedded with a pressure sensor (406) and a height sensor (407). The second waterproof shell (408) is provided with an armored structure. A waterproof cable (409) is provided, which passes through the second waterproof shell (408) and is connected to the pressure sensor (406) and the height sensor (407). The cylinder (1) is located above the first waterproof shell (401) and has an installation groove (6). A connector (410) is fixed on the surface of the installation groove (6). A socket (411) for use with the connector (410) is fixed at the bottom of the first waterproof shell (401). The armored waterproof cable (409) is connected to the connector (410). Connecting plates (413) are fixed on both the front and rear sides of the first waterproof shell (401).

2. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 1, characterized in that: The combined mechanism (5) includes two connecting shells (501) and a combined plate (502). The combined plate (502) is fixed to the top of the cylinder (1), and the connecting shells (501) are fixed to the bottom of the connecting plate (413). A spring (503) is fixed to the inner wall of the connecting shell (501). A wedge plate (504) is fixed to one end of the spring (503). A limiting groove (505) is opened on the surface of the combined plate (502) to accommodate the wedge plate (504). The wedge plate (504) is designed to face downwards at an angle.

3. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 2, characterized in that: Two guide plates (508) are fixed on both the front and rear sides of the connecting shell (501), and a guide groove (509) is provided on the surface of the combined plate (502) to accommodate the guide plates (508).

4. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 2, characterized in that: A connecting rod (506) is fixed to the surface of the wedge plate (504), the connecting rod (506) slides through the connecting shell (501), and a pull plate (507) is fixed to one end of the connecting rod (506).

5. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 2, characterized in that: A telescopic rod (510) is provided inside the spring (503). One end of the telescopic rod (510) is fixedly connected to the surface of the wedge plate (504), and the other end of the telescopic rod (510) is fixedly connected to the inner wall of the connecting shell (501).

6. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 1, characterized in that: The height sensor (407) is fitted with a miniature waterproof shell, and the pressure sensor (406) is a fully sealed piezoresistive sensor.

7. The monitoring and adjustment structure for the positioning and sinking process of a marine suction anchor according to claim 1, characterized in that: The bottom of the first waterproof housing (401) is fixed with a sealing gasket (414), the socket (411) is located inside the sealing gasket (414), and the top of the cylinder (1) is provided with a sealing groove for use with the sealing gasket (414).

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