Submarine cable first-aid repair salvage mechanical claw

Abstract

The invention relates to the technical field of submarine cable first-aid repair, in particular to a submarine cable first-aid repair salvage mechanical gripper which comprises a first base plate and a second base plate, and the second base plate is perpendicular to the middle of the first base plate; the main driving mechanism is arranged in a first linear guide rail cavity formed in the first substrate; the emergency driving mechanism is arranged in a second linear guide rail cavity formed in the second substrate and is connected with the main driving mechanism in the first linear guide rail cavity; the clamping mechanism is arranged on the main driving mechanism for clamping; in a normal working state, the main driving mechanism enables the clamping mechanism to move to a target position for clamping, and when the main driving mechanism is in an abnormal state, the emergency driving mechanism is started to drive the main driving mechanism to enable the clamping mechanism to continue to move, so that normal clamping is ensured; the problems of high cost, low efficiency and high risk in the prior art are effectively solved, and a reliable, efficient and economical solution is provided for submarine cable first-aid repair fishing operation.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable emergency repair, and in particular to a submarine cable emergency repair and salvage mechanical claw. Background Art

[0002] As the number of submarine cables continues to grow, the workload of submarine cable repair has also increased significantly. Currently, submarine cable salvage technology mainly relies on the following two solutions:

[0003] ROV hydraulic salvage system: This system is equipped with sonar positioning and a hydraulic manipulator and is suitable for deepwater operations. However, its high equipment cost and the need for support from specialized vessels limit its application.

[0004] Manual salvage by divers: In shallow waters, divers are usually employed to manually bundle submarine cables for salvage. However, this method is limited in efficiency by the divers' physical fitness and water depth, and is inherently dangerous, especially in complex underwater environments.

[0005] Both existing solutions have significant limitations. While the ROV hydraulic salvage system is technologically advanced, its high cost and reliance on specialized equipment make it difficult to widely apply in some scenarios. Manual salvage by divers is not only inefficient but can also pose a threat to diver safety. Therefore, developing a submarine cable repair and salvage technology that can effectively reduce maintenance costs, reduce reliance on specialized equipment, and improve operational safety and efficiency has become an urgent challenge in this field. Summary of the Invention

[0006] The present invention is proposed in view of the fact that, although the ROV hydraulic salvage system is technologically advanced, its high cost and reliance on specialized equipment make it difficult to widely use in some scenarios. Furthermore, manual salvage by divers is not only inefficient but may also pose a threat to the safety of the divers.

[0007] Therefore, the object of the present invention is to provide a submarine cable repair and salvage mechanical claw.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a submarine cable repair and salvage mechanical claw, comprising:

[0009] A first substrate and a second substrate, wherein the second substrate is perpendicular to the middle portion of the first substrate, and a first linear track cavity and a second linear track cavity are respectively provided in the first substrate and the second substrate;

[0010] A main driving mechanism is arranged in the first linear guide rail cavity for movement;

[0011] an emergency drive mechanism, disposed in the second linear guide cavity and connected to the main drive mechanism in the first linear guide cavity; and

[0012] A clamping mechanism, provided on the main driving mechanism for clamping;

[0013] Under normal working conditions, the main drive mechanism moves the clamping mechanism to the target position for clamping. When the main drive mechanism is in an abnormal state, the emergency drive mechanism is started to drive the main drive mechanism to make the clamping mechanism continue to move, ensuring normal clamping.

[0014] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the main driving mechanism includes a left driving member and a right driving member, and the left driving member and the right driving member are symmetrically arranged on both sides of the first linear guide rail cavity on the first substrate.

[0015] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the left-side driving component includes a first screw rod installed on the first linear guide rail cavity, a first motor installed on the first screw rod, a first moving block installed on the first screw rod, a first follower block installed on the first moving block, and a first guide block installed on the top of the first substrate.

[0016] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the right-side driving member includes a second screw rod installed on the second linear guide rail cavity, a second motor installed on the second screw rod, a second moving block installed on the second screw rod, a second follower block installed on the second moving block, and a second guide block installed on the top of the second substrate.

[0017] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the emergency drive mechanism includes a transmission part and a rocking part, the transmission part is installed in the second linear guide rail cavity and connected to the main drive mechanism, the activation of the rocking part drives the transmission part to move, and the rotation of the transmission part drives the main drive mechanism to move.

[0018] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the transmission part includes a first gear arranged on one side of the first screw rod and the second screw rod, a second gear is arranged in the second linear guide rail cavity, and a support shaft is installed on the second gear. The installation of the support shaft makes the second gear arranged on the second linear guide rail cavity, and the first gear and the second gear are meshed and connected by a chain.

[0019] As a preferred solution of the submarine cable repair and salvage mechanical claw of the present invention, the rocking member includes a rocking arm arranged on the support shaft, and the emergency drive mechanism drives the main drive mechanism to rotate through the rotation of the rocking arm.

[0020] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the clamping mechanism includes a support plate installed on the first follower block and the second follower block, a double side plate installed on the support plate, a cylinder installed in the middle of the support plate, a movable plate installed on the cylinder, a telescopic arm installed on the movable plate, and a clamping claw installed on the telescopic arm.

[0021] As a preferred solution of the submarine cable repair and salvage mechanical claw of the present invention, it also includes:

[0022] The positioning mechanism is arranged on the upper side of the second substrate to facilitate installation of the entire device at a suitable position.

[0023] As a preferred solution of a submarine cable repair and salvage mechanical claw of the present invention, the positioning mechanism includes a linear column and a fixed plate, the linear column is arranged on the upper side of the second substrate, and the fixed plate is installed on one side of the linear column.

[0024] The beneficial effects of the present invention are as follows: by providing a main drive mechanism and an emergency drive mechanism, it is ensured that when the main drive mechanism fails, the emergency drive mechanism can be started in time and drive the main drive mechanism to continue working, thereby ensuring that the clamping mechanism can operate normally, which effectively avoids the interruption of salvage operations due to equipment failure and improves the safety and reliability of the operation.

[0025] The main drive mechanism and the emergency drive mechanism are respectively arranged on the first base plate and the second base plate, and move through the linear guide rail cavity, ensuring the stability and precision of the clamping mechanism. This design enables the clamping mechanism to move quickly and accurately to the target position for clamping operations, thereby improving the efficiency of salvage operations.

[0026] Compared with the traditional ROV hydraulic salvage system, the mechanical claw structure of the present invention is simpler and the cost is significantly reduced. It does not need to rely on expensive professional ship support. At the same time, it avoids the high risk and low efficiency of manual salvage by divers, further reducing the overall maintenance cost.

[0027] The mechanical claw has a compact design and can adapt to submarine cable salvage operations at different depths and environmental conditions. It can work effectively in both deep and shallow water areas and has broad application prospects.

[0028] In summary, the submarine cable repair and salvage mechanical claw of the present invention effectively solves the high cost, low efficiency and high risk problems existing in the prior art through the dual drive mechanism design, and provides a reliable, efficient and economical solution for submarine cable repair and salvage operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 This is a schematic diagram of the overall structure of a submarine cable repair and salvage mechanical claw.

[0031] Figure 2 This is a schematic diagram of the connection between the main drive mechanism and the emergency drive structure in a submarine cable repair and salvage mechanical claw.

[0032] Figure 3 This is a schematic diagram of the clamping mechanism structure in a submarine cable repair and salvage mechanical claw.

[0033] Figure 4 This is a side view structural diagram of a submarine cable repair and salvage mechanical claw.

[0034] Reference numerals: 1, first substrate; 11, first linear guide cavity; 2, second substrate; 12, second linear guide cavity; 3, main drive mechanism; 31, left drive member; 311, first screw rod; 312, first motor; 313, first moving block; 314, first follower block; 315, first guide block; 32, right drive member; 321, second screw rod; 322, second motor; 323, second moving block; 324, Second follower block; 325, second guide block; 4, emergency drive mechanism; 41, transmission member; 411, first gear; 412, second gear; 413, support shaft; 414, chain; 42, rocking member; 421, rocker; 5, clamping mechanism; 51, support plate; 52, double-side plate; 53, cylinder; 54, movable plate; 55, telescopic arm; 56, clamping claw; 6, positioning mechanism; 61, limiting column; 62, fixed plate. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0039] Example 1

[0040] Reference Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a submarine cable repair and salvage mechanical claw, this device includes a first base plate 1 and a second base plate 2, the second base plate 2 is perpendicular to the middle of the first base plate 1, the first base plate 1 and the second base plate 2 are respectively provided with a first linear guide cavity 11 and a second linear guide cavity 12; a main drive mechanism 3 is arranged in the first linear guide cavity 11 for movement; an emergency drive mechanism 4 is arranged in the second linear guide cavity 12 and connected to the main drive mechanism 3 in the first linear guide cavity 11; and a clamping mechanism 5 is arranged on the main drive mechanism 3 for clamping; under normal working conditions, the main drive mechanism 3 enables the clamping mechanism 5 to move to the target position for clamping. When the main drive mechanism 3 is in an abnormal state, the emergency drive mechanism 4 is started to drive the main drive mechanism 3 to enable the clamping mechanism 5 to continue moving, ensuring normal clamping.

[0041] Specifically, the main drive mechanism 3 and the emergency drive mechanism 4 are respectively arranged on the first substrate 1 and the second substrate 2, and move through the linear guide cavity, ensuring the stability and accuracy of the clamping mechanism 5; by setting the main drive mechanism 3 and the emergency drive mechanism 4, it is ensured that when the main drive mechanism 3 fails, the emergency drive mechanism 4 can be started in time and drive the main drive mechanism 3 to continue working, thereby ensuring that the clamping mechanism 5 can operate normally, which effectively avoids the interruption of salvage operations due to equipment failure and improves the safety and reliability of operations.

[0042] During the operation, the main drive mechanism 3 is first started, and the clamping mechanism 5 is accurately moved to the target position of the submarine cable through the guiding action of the first linear guide rail cavity 11; during this process, the operating data of the main drive mechanism 3, such as speed, thrust, etc., are monitored in real time to ensure its stable operation; when the clamping mechanism 5 reaches the target position, the main drive mechanism 3 continues to work, driving the clamping mechanism 5 to clamp the submarine cable. The clamping force is pre-set according to the specifications and material of the submarine cable to ensure that it can be firmly clamped without damaging the submarine cable.

[0043] If the main drive mechanism 3 fails during operation, such as motor overload, guide rail jam, etc., the system will automatically detect the fault signal; at this time, the emergency drive mechanism 4 will be immediately started, which, through the connection with the main drive mechanism 3, quickly takes over and drives the main drive mechanism 3 and the clamping mechanism 5 thereon to continue moving; the start-up of the emergency drive mechanism 4 must ensure a smooth transition to avoid impact on the clamping mechanism 5 and the submarine cable; with the support of the emergency drive mechanism 4, the clamping mechanism 5 continues to complete the clamping task until the submarine cable is successfully salvaged to a safe location.

[0044] Example 2

[0045] Reference Figure 1 - Figure 3 , which is the second embodiment of the present invention, provides a submarine cable repair and salvage mechanical claw, the main driving mechanism 3 of this device includes a left driving member 31 and a right driving member 32, and the left driving member 31 and the right driving member 32 are symmetrically arranged on both sides of the first linear guide rail cavity 11 on the first substrate 1.

[0046] Specifically, the left driving member 31 includes a first screw rod 311 fixedly mounted on the first linear guide rail cavity 11, a first motor 312 fixedly mounted on the first screw rod 311, the first motor 312 is fixedly mounted in the first linear guide rail cavity 11, and the first motor 312 drives the first screw rod 311 to rotate, a first moving block 313 mounted on the first screw rod 311, the first moving block 313 is movably connected in the first linear guide rail cavity 11, and the first screw rod 311 and the first moving block 313 are threadedly connected, so that the first motor 312 is fixedly mounted in the first linear guide rail cavity 11, and the first motor 312 drives the first screw rod 311 to rotate. The starting cabinet 312 drives the first screw rod 311 to rotate. Since the first moving block 313 is in the first linear guide rail cavity 11, the rotation of the first screw rod 311 drives the first moving block 313 to move. The first follower block 314 is installed on the first moving block 313. The first follower block 314 is fixedly connected to one side of the first moving block 313. The first follower block 314 is located on the upper side of the first substrate 1. The first guide block 315 is fixedly installed on the top of the first substrate 1. The first guide block 315 is slidably connected to the first follower block 314.

[0047] Furthermore, the right driving member 32 includes a second screw rod 321 fixedly mounted on the second linear guide rail cavity 12, a second motor 322 fixedly mounted on the second screw rod 321, the second motor 322 is fixedly mounted in the second linear guide rail cavity 12, and the second motor 322 drives the second screw rod 321 to rotate, a second moving block 323 mounted on the second screw rod 321, the second moving block 323 is movably connected in the second linear guide rail cavity 21, and the second screw rod 321 and the second moving block 323 are threadedly connected, so that the second motor 322 can rotate. The starting cabinet of the machine 322 drives the second screw rod 321 to rotate. Since the second moving block 323 is in the second linear guide rail cavity 12, the rotation of the second screw rod 321 drives the second moving block 323 to move. The second follower block 324 is installed on the second moving block 323. The second follower block 324 is fixedly connected to the upper side of the second moving block 323. The second follower block 324 is located on the upper side of the second substrate 2. The second guide block 325 is fixedly installed on the top of the second substrate 2. The second guide block 325 is slidably connected to the second follower block 324.

[0048] Among them, the threads of the first screw rod 311 and the second screw rod 321 are in opposite directions, so that the first motor 312 and the second motor 322 only need to rotate in the same direction to make the moving blocks on the screw rods move towards each other. The reverse drive of the motors causes the moving blocks on the screw rods to move relatively.

[0049] During operation, the first motor 312 and the second motor 322 are started, and the motors rotate in the same direction. Since the thread directions of the first screw rod 311 and the second screw rod 321 are opposite, the rotation of the first screw rod 311 and the second screw rod 321 respectively drives the first moving block 313 and the second moving block 323 to move toward each other. When the first moving block 313 and the second moving block 323 move, they respectively drive the first follower block 314 and the second follower block 324 to slide along the first guide block 315 and the second guide block 325.

[0050] Example 3

[0051] Reference Figure 1 - Figure 3 , which is the third embodiment of the present invention, provides a submarine cable repair and salvage mechanical claw. The emergency drive mechanism 4 of this device includes a transmission member 41 and a rocking member 42. The transmission member 41 is installed in the second linear guide rail cavity 12 and is connected to the main drive mechanism 3. The activation of the rocking member 42 drives the transmission member 41 to move, and the rotation of the transmission member 41 prompts the main drive mechanism 3 to move.

[0052] Specifically, the transmission member 41 includes a first gear 411 arranged on one side of the first screw rod 311 and the second screw rod 321. The first gear 411 is fixedly connected to the first screw rod 311 and the second screw rod 321, and is the side where the first screw rod 311 and the second screw rod 321 are close to each other. A second gear 412 is provided in the second linear guide rail cavity 12. The second gear 412 is arranged in the middle position of the second linear guide rail cavity 12. The first gear 411 and the second gear 412 are in the same horizontal position. A support shaft 413 is fixedly installed on the second gear 412. The support shaft 413 passes through the second linear guide rail cavity 21 and is then rotatably connected to both sides of the second base plate 2. The support shaft The installation of 413 makes the second gear 412 arranged on the second linear guide rail cavity 21, and the chain 414 that is meshed with the first gear 411 and the second gear 412 is connected. Through the connection of the chain 414, rotating the second gear 412 will drive the rotation of the first gear 411, which will also cause the first screw rod 311 and the second screw rod 321 to rotate. The rotation of the first screw rod 311 and the second screw rod 321 respectively drives the first moving block 313 and the second moving block 323 to move toward each other. When the first moving block 313 and the second moving block 323 move, they respectively drive the first follower block 314 and the second follower block 324 to slide along the first guide block 315 and the second guide block 325.

[0053] Furthermore, the rocking member 42 includes a rocking arm 421 arranged on the support shaft 413, and the rocking arm 421 is fixedly connected to one side of the support shaft 413. The rotation of the rocking arm 421 drives the second gear 412 to rotate, thereby causing the first gear 411 to rotate, and the rotation of the first gear 411 will drive the first screw rod 311 and the second screw rod 321 to rotate. Through the rotation of the rocking arm 421, the emergency drive mechanism 4 drives the main drive mechanism 3 to rotate.

[0054] During operation, when the main drive mechanism 3 fails, manually rotate the rocker 421, and the rocker 421 drives the second gear 412 to rotate around the support shaft 413. The second gear 412 drives the first gear 411 to rotate through the chain 414. The first gear 411 is fixedly connected to the first screw rod 311 and the second screw rod 321, thereby driving the two to rotate synchronously. The rotation of the first screw rod 311 and the second screw rod 321 respectively drives the first moving block 313 and the second moving block 323 to move toward each other in the corresponding linear guide rails. When the first moving block 313 and the second moving block 323 move, they respectively drive the first follower block 314 and the second follower block 324 to slide along the guide block.

[0055] Example 4

[0056] Reference Figure 1 - Figure 3, which is the third embodiment of the present invention, provides a mechanical claw for submarine cable emergency repair and salvage. The clamping mechanism 5 of this device includes a support plate 51 fixedly installed on the first follower block 314 and the second follower block 324. A double-sided plate 52 is fixedly installed on the support plate 51. There are two double-sided plates 52, which are located on both sides of the support plate 51 respectively. The double-sided plate 52 is composed of two plates with a certain gap between them. The setting of the double-sided plate 52 divides the support plate 51 into three spaces. A cylinder 53 is fixedly installed in the middle of the support plate 51. The cylinder 53 is located in the middle position of the three spaces divided by the installation of the double-sided plate 52. A moving plate 54 is fixedly installed on the cylinder 53. The lifting of the cylinder 53 drives the movement of the moving plate 54. Telescopic arms 55 are installed on the moving plate 54. The telescopic arms 55 are located on both sides of the moving plate 54, and the telescopic arms 55 present a "冂" character structure. The "one" part is used to penetrate both sides of the moving plate 54. The telescopic arms 55 are fixedly connected to the moving plate 54. The lifting of the moving plate 54 drives the lifting of the telescopic arms 55. Clamping claws 56 are installed on the telescopic arms 55. The top position of the clamping claws 56 is rotatably connected inside the double-sided plate 52. The telescopic arms 55 and the clamping claws 56 are fixedly connected, and the telescopic arms 55 are connected to the side of the clamping claws 56 that is biased towards the double-sided plate 52. In this way, as the telescopic arms 55 move up and down with the moving plate 54, they will carry the clamping claws 56 to move. As one side of the clamping claws 56 is rotatably connected to the double-sided plate 52, the clamping claws 56 perform opening and closing movements.

[0057] During the operation, the cylinder 53 is started. The piston rod of the cylinder 53 drives the moving plate 54 to move in the vertical direction. The movement of the moving plate 54 drives the telescopic arms 55 to lift and lower. The telescopic arms 55 penetrate both sides of the moving plate 54 to ensure that the telescopic arms 55 move synchronously with the moving plate 54. The movement of the telescopic arms 55 drives the clamping claws 56 to move around their rotation connection points with the double-sided plate 52, realizing the opening or closing of the clamping claws 56; when the clamping claws 56 reach the target position, the cylinder 53 is continuously operated to firmly clamp the submarine cable by the clamping claws 56; before and after clamping, the clamping mechanism 5 can be moved by the main driving mechanism 3 or the emergency driving mechanism 4.

[0058] Embodiment 5

[0059] Refer to Figure 1 - Figure 4 , which is the third embodiment of the present invention, provides a mechanical claw for submarine cable emergency repair and salvage. This device further includes a positioning mechanism 6. The positioning mechanism 6 is arranged at the upper side of the second substrate 2 to facilitate the installation of the entire device in a suitable position.

[0060] Specifically, the positioning mechanism 6 includes a linear column and a fixed plate 62. The linear column is arranged on the upper side of the second substrate 2. The linear column is fixedly connected to the upper side of the second substrate 2 away from the end of the first substrate 1. A hydraulic oil circuit interface and a cable threading hole are reserved in the center of the linear column. The top of the linear column is a flange that can be used for connection and fixation. The fixed plate 62 is fixedly installed on one side of the linear column. The fixed plate 62 is rectangular and has a hole in the middle for bolt connection. The device can be fixedly installed on the crane through the linear column and the fixed plate 62 of the positioning mechanism 6, and the crane lowers the mechanical claw to the seabed.

[0061] During operation, the entire device is fixed on the crane through the linear column and fixed plate 62 of the positioning mechanism 6 to ensure the stability of the device during the lowering process; the crane lowers the mechanical claw to the target position on the seabed. After reaching the target position, the main drive mechanism 3 is started, and the clamping mechanism 5 is accurately moved to the position of the submarine cable through the guiding action of the first linear guide rail cavity 11. The cylinder 53 of the clamping mechanism 5 is started to drive the clamping claw 56 to open or close, completing the clamping of the submarine cable. The clamping force is pre-set according to the specifications and material of the submarine cable to ensure firm clamping without damaging the submarine cable.

[0062] If the main drive mechanism 3 fails, the emergency drive mechanism 4 is immediately started, and the transmission member 41 is driven by manually rotating the rocker 421 to continue to push the clamping mechanism 5 to move, ensuring that the salvage operation is not affected.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A submarine cable repair and salvage mechanical claw, characterized by: include, A first substrate (1) and a second substrate (2), wherein the second substrate (2) is perpendicular to the middle portion of the first substrate (1), and a first linear track cavity (11) and a second linear track cavity (12) are respectively provided in the first substrate (1) and the second substrate (2); A main driving mechanism (3) is arranged in the first linear guide cavity (11) for movement; an emergency drive mechanism (4) disposed in the second linear guide cavity (12) and connected to the main drive mechanism (3) in the first linear guide cavity (11); and A clamping mechanism (5) is provided on the main driving mechanism (3) for clamping; Under normal working conditions, the main drive mechanism (3) enables the clamping mechanism (5) to move to a target position for clamping. When the main drive mechanism (3) is in an abnormal state, the emergency drive mechanism (4) is activated to drive the main drive mechanism (3) so that the clamping mechanism (5) continues to move, thereby ensuring normal clamping.

2. The submarine cable repair and salvage mechanical claw according to claim 1, characterized in that: The main drive mechanism (3) comprises a left-side drive member (31) and a right-side drive member (32), wherein the left-side drive member (31) and the right-side drive member (32) are symmetrically arranged on both sides of a first linear guide rail cavity (11) on a first substrate (1).

3. The submarine cable repair and salvage mechanical claw according to claim 2, characterized in that: The left-side driving member (31) comprises a first screw rod (311) mounted on the first linear guide rail cavity (11), a first motor (312) mounted on the first screw rod (311), a first moving block (313) mounted on the first screw rod (311), a first follower block (314) mounted on the first moving block (313), and a first guide block (315) mounted on the top of the first base plate (1).

4. The submarine cable repair and salvage mechanical claw according to claim 3, characterized in that: The right-side driving member (32) includes a second screw rod (321) mounted on the second linear guide rail cavity (12), a second motor (322) mounted on the second screw rod (321), a second moving block (323) mounted on the second screw rod (321), a second follower block (324) mounted on the second moving block (323), and a second guide block (325) mounted on the top of the second base plate (2).

5. The submarine cable repair and salvage mechanical claw according to claim 4, characterized in that: The emergency drive mechanism (4) comprises a transmission member (41) and a rocking member (42). The transmission member (41) is installed in the second linear guide rail cavity (12) and is connected to the main drive mechanism (3). The activation of the rocking member (42) drives the transmission member (41) to move, and the rotation of the transmission member (41) actuates the main drive mechanism (3) to move.

6. The submarine cable repair and salvage mechanical claw according to claim 5, characterized in that: The transmission member (41) includes a first gear (411) arranged on one side of the first screw rod (311) and the second screw rod (321); a second gear (412) is arranged in the second linear guide rail cavity (12); a support shaft (413) is installed on the second gear (412); the installation of the support shaft (413) enables the second gear (412) to be arranged on the second linear guide rail cavity (21); and a chain (414) is engaged with the first gear (411) and the second gear (412).

7. The submarine cable repair and salvage mechanical claw according to claim 6, characterized in that: The rocking member (42) includes a rocking lever (421) arranged on the support shaft (413), and the emergency driving mechanism (4) drives the main driving mechanism (3) to rotate through the rotation of the rocking lever (421).

8. The submarine cable repair and salvage mechanical claw according to claim 7, characterized in that: The clamping mechanism (5) comprises a support plate (51) mounted on the first follower block (314) and the second follower block (324), a double-side plate (52) mounted on the support plate (51), a cylinder (53) mounted in the middle of the support plate (51), a moving plate (54) mounted on the cylinder (53), a telescopic arm (55) mounted on the moving plate (54), and a clamping claw (56) mounted on the telescopic arm (55).

9. The submarine cable repair and salvage mechanical claw according to any one of claims 1 to 8, characterized in that: Also includes, A positioning mechanism (6) is provided on the upper side of the second substrate (2) to facilitate installation of the entire device at a suitable position.

10. The submarine cable repair and salvage mechanical claw according to claim 9, characterized in that: The positioning mechanism (6) comprises a linear column and a fixing plate (62), wherein the linear column is arranged on the upper side of the second substrate (2), and the fixing plate (62) is installed on one side of the linear column.

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