Underwater hanging point rooting device and deep-sea salvage method

Abstract

The present invention relates to an underwater hanging point rooting device, comprising a main shaft, a handle mounted on the top of the main shaft, a slot sleeve mounted in the middle of the main shaft, a connecting seat mounted at the bottom of the main shaft, a plurality of rooting claws evenly hinged on the outside of the connecting seat, the inner side of each rooting claw being connected to the slot sleeve via a connecting rod, a plurality of tension springs disposed between the slot sleeve and the connecting seat, each tension spring being mounted in conjunction with the upper surface of the connecting seat via a first connecting pin, and each tension spring being mounted in conjunction with the slot sleeve via a second connecting pin; a groove being disposed at the end of the main shaft, the interior of the groove being mounted in conjunction with an elastic paddle via a fastener, a through groove corresponding to the elastic paddle being disposed at the top of the slot sleeve, and in an initial state, the elastic paddle preventing the tension spring from pulling the slot sleeve downward via the through groove. The tension springs control the tightening and opening of the rooting claws, thereby enabling the underwater hanging point rooting device to take root on a wreck, thereby achieving high reliability and being suitable for deep-sea environments.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater working tools, in particular to an underwater hanging point rooting device and a deep-sea salvage method. Background Art

[0002] Deep-sea technology is a crucial element in China's strategy to achieve its goal of becoming a strong maritime nation and a strong transportation nation. Deep-sea salvage technology is an emerging branch of deep-sea technology. Deep-sea salvage is not only a crucial vehicle for the integrated application of various deep-sea high-tech technologies, but also evolves alongside the development of numerous common deep-sea technologies. Existing deep-sea salvage methods utilize a crane mounted on a salvage mother vessel and a lifting claw to clamp and salvage wreckage on the seabed. This salvage method is unsuitable for salvaging large, complex objects. Furthermore, the lifting claw must be positioned accurately during the salvage process, resulting in high operational difficulty and low efficiency. Summary of the Invention

[0003] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a rationally structured underwater hanging point rooting device and a seabed salvage method. The tightening and opening of the rooting claws are controlled by a tension spring, so that the underwater hanging point rooting device can take root on the wreckage. The device has high reliability and can complete the task of salvaging large wreckage by setting multiple rooting points. At the same time, the rooting operation can be completed by simple operation of a manipulator, which is suitable for deep-sea environments and can ensure the efficiency of the salvage operation.

[0004] The technical solutions adopted in the present invention are as follows:

[0005] An underwater hanging point rooting device comprises a main shaft, a handle is installed on the top of the main shaft, a slot sleeve is installed in the middle of the main shaft, a connecting seat is provided at the bottom of the main shaft, a number of rooting claws are evenly hinged on the outside of the connecting seat, the inner side of each rooting claw is connected to the slot sleeve through a connecting rod, a number of tension springs are provided between the slot sleeve and the connecting seat, each tension spring is installed in cooperation with the upper surface of the connecting seat through a first connecting pin, and each tension spring is installed in cooperation with the slot sleeve through a second connecting pin; a groove is provided at the shaft end of the main shaft, the interior of the groove is installed in cooperation with an elastic paddle through a fastener, and at the same time, the elastic paddle is installed in the interior of the slot sleeve, and a through groove corresponding to the elastic paddle is provided at the top of the slot sleeve. In the initial state, the elastic paddle prevents the tension spring from pulling down the slot sleeve through the through groove.

[0006] Its further technical solution is:

[0007] The connecting seat limits the rooting claw, and the connecting seat makes the angle between the rooting claw and the main shaft axis less than or equal to 90°.

[0008] The connecting rod is H-shaped.

[0009] The first connecting pin is installed in cooperation with the connecting seat through the shaft end thread, and the second connecting pin is installed at the bottom of the slot sleeve. The second connecting pin is installed in cooperation with the slot sleeve through the shaft end thread.

[0010] An elastic pick mounting hole is provided inside the groove, and the elastic pick mounting hole is provided with an internal thread.

[0011] The rooting claw is hinged to the connecting seat via bolts.

[0012] The main shaft and the handle are connected by screws.

[0013] A deep-sea salvage method using the underwater hanging point rooting device comprises the following steps:

[0014] S1. Preparation: Transport the submersible to the target sea area via a deepwater operation vessel. Connect the underwater rooting device to the crane onboard the deepwater operation vessel via a sling. The submersible's manipulator carries the drilling equipment and underwater rooting device, ensuring the rooting claws are tightened.

[0015] S2. Lowering the manned submersible into the seawater, and gradually descending to the target depth;

[0016] S3. Determine the rooting point of the debris;

[0017] S4. The submersible uses a manipulator to drill a hole at the rooting point of the wreckage, forming a through hole at the rooting point;

[0018] S5. The manipulator operates the underwater hanging point rooting device through the rooting point through-hole by the handle;

[0019] S6. Press the elastic paddle by another manipulator to separate the card slot sleeve from the elastic paddle, stretch the spring and pull the card slot sleeve down to open the rooting claws;

[0020] S7. After completing the rooting operation and the submersible is away from the wreckage, it sends a lifting signal to the deep-water operation vessel on the sea surface;

[0021] S8. After receiving the lifting signal, the deep-water operation vessel on the sea surface uses a crane to lift the wreckage to the deck of the deep-water operation vessel, completing the deep-sea salvage operation.

[0022] A further technical solution of a deep-sea salvage method using the above-mentioned underwater hanging point rooting device is:

[0023] The submersible is equipped with a manipulator on the port side and a manipulator on the starboard side.

[0024] The diameter of the rooting point through hole is larger than the outer diameter of the underwater hanging point rooting device when the rooting claws are tightened, and the diameter of the rooting point through hole is smaller than the outer diameter of the underwater hanging point rooting device when the rooting claws are opened.

[0025] The beneficial effects of the present invention are as follows:

[0026] The present invention has a compact and reasonable structure and is easy to operate. The rooting operation is achieved by controlling the tightening and opening of the rooting claws through a tension spring. The mechanical structure is simple and ingenious, resistant to high pressure, and has good reliability. It is suitable for a variety of complex working conditions. The rooting claws can be opened by simply pressing the elastic paddle, and the operation is simple, thereby ensuring the efficiency of deep-sea salvage operations.

[0027] The present invention also has the following advantages:

[0028] (1) The working mode of using a submersible in conjunction with a deep-water operation vessel can accurately locate the wreckage and ensure the accuracy of salvage.

[0029] (2) The underwater hanging point rooting device provided by the present invention has a simple structure, a small size, a reliable connection, and low requirements for the operating wreckage. It can complete the salvage of large salvage objects and is also suitable for salvaging fragmented salvage objects. It is suitable for various working conditions.

[0030] (3) The rooting operation can be completed by simple operation of the manipulator, and then the wreckage can be salvaged to the sea surface by a crane. The personnel are transformed from the traditional operating role to the supervisory role, which can effectively reduce the burden on the operator and improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is an exploded view of the present invention.

[0033] Figure 3 for Figure 1 main view.

[0034] Figure 4 for Figure 1 side view.

[0035] Figure 5 for Figure 1 Top view of .

[0036] Figure 6 for Figure 5 Cross-sectional view of section AA.

[0037] Figure 7 This is a schematic diagram of the structure of the present invention when it is tightened during operation.

[0038] Figure 8 This is a schematic diagram of the structure when the present invention is in operation.

[0039] Among them: 1. Main shaft; 2. Rooting claw; 3. Handle; 4. Tension spring; 5. Connecting rod; 6. Elastic pick; 7. Slot sleeve; 8. First connecting pin; 9. Second connecting pin; 10. Connecting seat; 11. Groove; 12. Elastic pick mounting hole; 13. Through slot; 14. Rooting point through hole. DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0041] The structure and function of an underwater hanging point rooting device provided by the present invention are as follows:

[0042] like Figures 1-8 As shown, an underwater hanging point rooting device includes a main shaft 1, a handle 3 is installed on the top of the main shaft 1, a slot sleeve 7 is installed in the middle of the main shaft 1, a connecting seat 10 is provided at the bottom of the main shaft 1, and several rooting claws 2 are evenly hinged on the outside of the connecting seat 10. The inner side of each rooting claw 2 is connected to the slot sleeve 7 through a connecting rod 5. Several tension springs 4 are provided between the slot sleeve 7 and the connecting seat 10. Each tension spring 4 is installed in cooperation with the upper surface of the connecting seat 10 through a first connecting pin 8, and each tension spring 4 is installed in cooperation with the slot sleeve 7 through a second connecting pin 9; a groove 11 is provided at the shaft end of the main shaft 1, and the inside of the groove 11 is installed in cooperation with an elastic paddle 6 through a fastener. At the same time, the elastic paddle 6 is installed in the inside of the slot sleeve 7, and a through groove 13 corresponding to the elastic paddle 6 is provided on the top of the slot sleeve 7. In the initial state, the elastic paddle 6 prevents the tension spring 4 from pulling down the slot sleeve 7 through the through groove 13. The handle 3 is used for the manipulator to clamp the underwater hanging point rooting device; when the rooting claw 2 is opened, the underwater hanging point rooting device cannot pass through the rooting point through hole 14, thereby completing the rooting and allowing the crane to salvage the wreckage; the rooting claw 2 is hinged to the connecting rod 5 by bolts; the connecting rod 5 is hinged to the slot sleeve 7 by bolts.

[0043] In the initial state, the elastic paddle 6 presses against the inner wall of the slot sleeve 7, so that the rooting claw 2 is in a tightened state; pressing the elastic paddle 6 causes the slot sleeve 7 to separate from the elastic paddle 6, so that the tension spring 4 pulls the slot sleeve 7 downward toward the connecting seat 10, thereby fully opening the rooting claw 2.

[0044] The connecting seat 10 limits the rooting claw 2, and the connecting seat 10 makes the angle between the rooting claw 2 and the axis of the main shaft 1 less than or equal to 90 degrees. When the rooting claw 2 is fully opened, the angle between it and the axis of the main shaft 1 is 90 degrees.

[0045] The connecting rod 5 is H-shaped. The connecting rod 5 is H-shaped, and openings are provided at both ends thereof, so as to ensure the connection strength when connected with the rooting claw 2 and the slot sleeve 7.

[0046] The first connecting pin 8 is mounted on the connecting seat 10 through the shaft end thread, and the second connecting pin 9 is installed on the bottom of the slot sleeve 7. The second connecting pin 9 is mounted on the slot sleeve 7 through the shaft end thread. The tension spring 4 is connected to the connecting pins through the hooks at both ends, and the hooks at both ends of the tension spring 4 are hooked into the first connecting pin 8 and the second connecting pin 9.

[0047] An elastic pick mounting hole 12 is provided inside the groove 11, and an internal thread is provided in the elastic pick mounting hole 12. The elastic pick 6 is mounted on the main shaft 1 through a threaded fastener.

[0048] The rooting claw 2 is hinged to the connecting seat 10 by bolts. The hinged connection of the bolts can not only make the rooting claw 2 rotate, but also ensure the connection strength.

[0049] The main shaft 1 and the handle 3 are connected by screws. The screw connection is stable and reliable, which can ensure the reliability of the underwater hanging point rooting device.

[0050] The above-mentioned underwater hanging point rooting device is used to salvage a shipwreck sunken at a water depth of 1500 meters. The present invention provides a deep-sea salvage method, comprising the following steps:

[0051] S1 preparation work, the submersible is transported to the target sea area by a deepwater operation vessel, the underwater lifting point rooting device is connected to the crane carried by the deepwater operation vessel through the sling, the submersible manipulator carries the drilling equipment and the underwater lifting point rooting device, ensure that the rooting claw 2 is in a tightened state;

[0052] S2. Lowering the manned submersible into the seawater, and gradually descending to the target depth;

[0053] S3. Determine the rooting point of the debris;

[0054] S3.1. Select an area with relatively intact debris as the rooting point. To ensure connection strength, multiple rooting points may be selected.

[0055] S4. The submersible drills the rooting point of the wreckage by a manipulator, and the rooting point is formed after drilling through hole 14;

[0056] S4.1. The diameter of the rooting point through hole 14 is determined according to the outer diameter of the underwater hanging point rooting device when the rooting claw 2 is tightened. The diameter of the rooting point through hole 14 is slightly larger than the outer diameter of the underwater hanging point rooting device when the rooting claw 2 is tightened. The diameter of the rooting point through hole 14 is smaller than the outer diameter of the underwater hanging point rooting device when the rooting claw 2 is opened. This can ensure that the underwater hanging point rooting device can completely pass through the rooting point through hole 14, while making the wreckage as complete as possible to ensure the connection strength.

[0057] S5. The manipulator operates the underwater hanging point rooting device through the handle 3 through the rooting point through hole 14;

[0058] S6. By pressing the elastic paddle 6 with another manipulator, the card slot sleeve 7 is disengaged from the elastic paddle 6, and the tension spring 4 pulls down the card slot sleeve 7 to open the rooting claw 2. The connecting seat 10 limits the rooting claw 2 so that when the rooting claw 2 is fully opened, the angle between the rooting claw 2 and the axis of the main shaft 1 is 90°;

[0059] S7. After completing the rooting operation and the submersible is away from the wreckage, it sends a lifting signal to the deep-water operation vessel on the sea surface;

[0060] S8. After receiving the lifting signal, the deep-water operation vessel on the sea surface uses a crane to lift the wreckage to the deck of the deep-water operation vessel, completing the deep-sea salvage operation.

[0061] The present invention provides an underwater hanging point rooting device that tightens the rooting claw 2 through an elastic pick 6. When salvaging wreckage, the rooting claw 2 can be opened by pressing the elastic pick 6 by a manipulator. The mechanical structure design is simple and reliable, the structure is compact and reasonable, and all its structures are mechanical components with good pressure resistance. The present invention provides a deep-sea salvage method that is simple to operate, and the salvage operation can be completed by a robot without manual intervention, thereby improving the salvage efficiency and increasing the effective salvage depth.

[0062] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A deep-sea salvage method for an underwater hanging point rooting device, characterized in that: The underwater hanging point rooting device comprises a main shaft (1), a handle (3) is installed on the top of the main shaft (1), a slot sleeve (7) is installed in the middle of the main shaft (1), a connecting seat (10) is provided at the bottom of the main shaft (1), a plurality of rooting claws (2) are evenly hinged on the outside of the connecting seat (10), the inner side of each rooting claw (2) is connected to the slot sleeve (7) through a connecting rod (5), and a plurality of tension springs (4) are provided between the slot sleeve (7) and the connecting seat (10), and each tension spring (4) is connected to the connecting seat through a first connecting pin (8). (10) is mounted in cooperation with the upper surface thereof, and each tension spring (4) is mounted in cooperation with the slot sleeve (7) through the second connecting pin (9); a groove (11) is provided at the shaft end of the main shaft (1), and the interior of the groove (11) is mounted in cooperation with the elastic pick (6) through a fastener, and at the same time, the elastic pick (6) is mounted in the interior of the slot sleeve (7), and a through groove (13) corresponding to the elastic pick (6) is provided at the top of the slot sleeve (7), and in the initial state, the elastic pick (6) prevents the tension spring (4) from pulling down the slot sleeve (7) through the through groove (13); The operating steps of the deep-sea salvage method are as follows: S1. Preparation work: transport the submersible to the target sea area via a deep-water operation vessel, connect the underwater hanging point rooting device to the crane carried by the deep-water operation vessel via a lifting rope, carry the drilling equipment and the underwater hanging point rooting device through the manipulator of the submersible, and ensure that the rooting claw (2) is in a tightened state; S2. Lowering the manned submersible into the seawater, and gradually descending to the target depth; S3. Determine the rooting point of the debris; S4. The submersible uses a manipulator to drill a hole at the rooting point of the wreckage, and after drilling, a through hole (14) is formed at the rooting point; S5. The manipulator operates the underwater hanging point rooting device through the rooting point through hole (14) through the handle (3); S6. another manipulator presses the elastic paddle (6) to separate the card slot sleeve (7) from the elastic paddle (6), and the tension spring (4) pulls down the card slot sleeve (7) to open the rooting claw (2); S7. After completing the rooting operation and the submersible is away from the wreckage, it sends a lifting signal to the deep-water operation vessel on the sea surface; S8. After receiving the lifting signal, the deep-water operation vessel on the sea surface uses a crane to lift the wreckage to the deck of the deep-water operation vessel, completing the deep-sea salvage operation.

2. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The connecting seat (10) limits the rooting claw (2), and the connecting seat (10) makes the angle between the rooting claw (2) and the axis of the main shaft (1) less than or equal to 90°.

3. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The connecting rod (5) is H-shaped.

4. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The first connecting pin (8) is mounted in cooperation with the connecting seat (10) via the shaft end thread, and the second connecting pin (9) is mounted at the bottom of the slot sleeve (7), and the second connecting pin (9) is mounted in cooperation with the slot sleeve (7) via the shaft end thread.

5. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: An elastic pick mounting hole (12) is provided inside the groove (11), and the elastic pick mounting hole (12) is provided with an internal thread.

6. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The rooting claw (2) is hinged to the connecting seat (10) via bolts.

7. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The main shaft (1) and the handle (3) are connected via screws.

8. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The submersible is equipped with a manipulator on the port side and a manipulator on the starboard side.

9. The deep-sea salvage method of the underwater hanging point rooting device according to claim 1, characterized in that: The diameter of the rooting point through hole (14) is larger than the outer diameter of the underwater hanging point rooting device when the rooting claws (2) are tightened, and the diameter of the rooting point through hole (14) is smaller than the outer diameter of the underwater hanging point rooting device when the rooting claws (2) are opened.

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