Simple cable grabbing tool for underwater ROV

Abstract

A simple cable grabbing tool for an underwater ROV comprises a scissor-fork type structure, a cable bracket, a T-shaped screw structure and a U-shaped hanging lug, the scissor-fork type structure is originally created and matched with the T-shaped screw structure, the T-shaped screw structure is suitable for ROV manipulator operation, along with the rotation action of the T-shaped screw structure, a pressing frame is gradually closed, a waste cable is firmly grabbed, and the cable is firmly grabbed. The cable is firmly clamped between the pressing knife and the knife part, in the downward pressing process, the cable is tightly pressed on the abutting block by the pressing knife, the two supporting tiles hinged to the main hinge lugs on the two sides of the abutting block are upwards supported through the two knife part supporting points respectively and bend the cable, the cable is forcibly bent, and the phenomenon that the side face slips is avoided. The T-shaped screw rod and the screw hole have a locking function, and the loosening phenomenon hardly exists.

Description

Technical Field

[0001] The present invention relates to the field of machinery, in particular to marine engineering equipment, and more particularly to a simple cable grabbing tool for underwater ROV. Background Art

[0002] In the field of marine engineering, ROVs (underwater robots) are often used for submarine operations. Sometimes, scrap cables need to be salvaged from the seabed. However, ROVs themselves do not have salvage capabilities and generally need to cooperate with the lifting rope lowered by the sea surface lifting vessel to carry out salvage. The current practice is to install a self-locking hook at the bottom of the lifting rope. The underwater ROV is responsible for hooking the scrap cable to the self-locking hook, and then the lifting vessel performs the lifting action. In actual operation, there are two problems. First, the diameter and weight of the scrap submarine cables are large. The self-locking hook's self-locking piece can easily be pushed open during the ascent, resulting in a loose hook. Second, the self-locking hook does not effectively clamp the scrap cable, and it often slips sideways. Summary of the Invention

[0003] The purpose of the present invention is to provide a simple underwater ROV cable grabbing tool, which has an original scissor-type structure and is matched with a T-shaped screw structure. The T-shaped screw structure is suitable for ROV manipulator operation. As the T-shaped screw structure rotates, the lower pressing frame gradually closes, the waste cable is firmly grasped, and the cable is firmly clamped between the pressing knife and the knife part. During the pressing process, the cable is pressed against the abutment block by the pressing knife, and two supporting tiles hinged to the main hinge ears on both sides of the abutment block respectively support and bend the cable at the two knife part fulcrums. The cable is forced to be bent, avoiding the occurrence of side slippage. The T-shaped screw and the screw hole themselves have a locking function, and there is almost no loosening phenomenon.

[0004] To achieve the above object, the present invention provides a simple underwater ROV cable grabbing tool, which includes a scissor-type structure, a cable bracket, a T-shaped screw structure and a U-shaped hanging ear;

[0005] The scissor-type structure includes an upper bracket and a lower pressure frame; the upper bracket includes two symmetrically arranged support plates, any one of the support plates includes a knife part and a handle part, the knife part is welded to the front end of the handle part, a bracket is formed at the front end of the knife part, a support block is connected between the two knife parts, an embedding hole is provided in the center of the support block, a first rotating shaft and a second rotating shaft are provided between the two handle parts, a bolt hole is provided in the radial direction of the second rotating shaft, both ends of the second rotating shaft respectively pass through the two handle parts and continue to extend outward, a first pin hole is provided in the radial direction of the two ends of the second rotating shaft, a first opening is inserted in the first pin hole Pin, a connecting plate is provided between the first rotating shaft and the second rotating shaft, the two ends of the connecting plate are respectively connected to the two handle parts, and a guide block is extended downward from the end surface of the connecting plate; the lower pressing frame includes a pressing knife and two symmetrically arranged pressing handles, an end plate and a third rotating shaft are connected between the two pressing handles, and the third rotating shaft is provided with a through hole in the radial direction, the pressing knife is welded to the front end surface of the end plate, a pressing groove is formed at the front end of the pressing knife, the pressing knife is provided with an axial hole, and the first rotating shaft passes through the axial hole; the guide block extends between the two pressing handles, and the inner sides of the two pressing handles are in close contact with the end surfaces of both sides of the guide block;

[0006] The cable bracket includes a lifting block and two symmetrically arranged supporting shoes, the lifting block is embedded in the embedding hole, an abutting block is vertically arranged in the center of the lifting block, and a main hinge ear is provided on each side of the abutting block. The two supporting shoes are respectively arranged on both sides of the abutting block, and each supporting shoe is provided with a secondary hinge ear on the side close to the abutting block. The secondary hinge ear is hinged to the main hinge ear, and each supporting shoe is placed on the bracket on the side away from the abutting block.

[0007] The T-shaped screw structure includes a screw and a handle cross bar, the lower end of the screw sequentially passes through the bolt hole and the through hole, the lower end of the screw is provided with a second pin hole, a second cotter pin is inserted into the second pin hole, and the handle cross bar is transversely welded to the upper end of the screw;

[0008] The two ends of the U-shaped hanging ear are respectively sleeved on the two ends of the second rotating shaft and stopped by the first cotter pin.

[0009] Furthermore, the present invention provides a simple underwater ROV cable grabbing tool, wherein the side groove walls of the pressed groove are provided with a tooth-like structure.

[0010] Furthermore, the present invention provides a simple underwater ROV cable grabbing tool, wherein the two ends of the first rotating shaft respectively pass through the two handles and continue to extend outward, and a spline shaft is provided at both ends of the first rotating shaft, and a screw hole is provided on the outer end face of the spline shaft, and an auxiliary pressure knife is provided at each end of the first rotating shaft, and the front end of the auxiliary pressure knife is formed with an auxiliary pressure groove, and the rear end of the auxiliary pressure knife is provided with a spline groove, and the auxiliary pressure knife is connected to the first rotating shaft through the adaptation of the spline groove and the spline shaft, and also includes an end locking gasket and an end locking bolt, the end locking gasket is sleeved on the end locking bolt, the end locking bolt is connected to the screw hole, and the end locking gasket is clamped between the end face of the auxiliary pressure knife and the end locking bolt.

[0011] Furthermore, the present invention provides a simple underwater ROV cable grabbing tool, wherein the side groove wall of the secondary pressure groove is provided with a tooth-like structure.

[0012] Furthermore, the present invention provides a simple underwater ROV cable grabbing tool, wherein the side of the holding shoe away from the abutment block ends at the secondary pressure groove.

[0013] Furthermore, the present invention provides a simple underwater ROV cable grabbing tool, wherein the tile surface of the supporting tile is stamped with a plurality of conical hole structures.

[0014] The simple underwater ROV cable grabbing tool of the present invention has the following advantages over the prior art:

[0015] The cable is clamped between the pressing knife and the knife part, and the cable is pressed against the abutment block by the pressing knife. The two supporting tiles hinged on the main hinge ears on both sides of the abutment block respectively support and bend the cable with the two knife parts as the supporting tiles, and the cable is forced to be bent, avoiding the occurrence of side slippage. The T-shaped screw and the screw hole themselves have a locking function, and there is almost no loosening phenomenon. On the other hand, in addition to the supporting tiles bending the cable upward, the present invention has an auxiliary pressing knife on each side of the pressing knife. As the pressing knife presses down, the cable is forced to fold upward, and the folded cable presses against the auxiliary pressing knife, and the auxiliary pressing knife bends the cable downward, making it more difficult for the wavy bent cable to slip from the side, and the clamping effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a simple underwater ROV cable grabbing tool of the present invention;

[0017] Figure 2 for Figure 1Transform the orientation map;

[0018] Figure 3 This is an exploded view of the structure of a simple underwater ROV cable grabbing tool according to the present invention.

[0019] Among them: 1. U-shaped hanging ear; 2. Blade; 3. Handle; 4. Bracket; 5. Support block; 6. Embedding hole; 7. First rotating shaft; 8. Second rotating shaft; 9. Bolt hole; 10. First pin hole; 11. First cotter pin; 12. Connecting plate; 13. Guide block; 14. Pressing knife; 15. Pressing handle; 16. End plate; 17. Third rotating shaft; 18. Pressing groove; 19. Tooth structure; 20. Shaft hole; 21 , lifting block; 22, supporting tile; 23, abutment block; 24, main hinge ear; 25, secondary hinge ear; 26, tapered hole structure; 27, screw; 28, handle cross bar; 29, through hole; 30, second pin hole; 31, second cotter pin; 32, spline shaft; 33, screw hole; 34, secondary pressure knife; 35, secondary pressure groove; 36, spline groove; 37, end locking gasket; 38, end locking bolt. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments and drawings of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] like Figures 1 to 3As shown, this embodiment provides a simple underwater ROV cable grabbing tool, which includes a scissor-type structure, a cable bracket, a T-shaped screw structure and a U-shaped hanging ear 1;

[0024] The scissor-type structure includes an upper bracket and a lower pressure frame; the upper bracket includes two symmetrically arranged support plates, any one of which includes a knife portion 2 and a handle portion 3, the knife portion 2 is welded to the front end of the handle portion 3, and a bracket 4 is formed at the front end of the knife portion 2, a support block 5 is connected between the two knife portions 2, an embedding hole 6 is provided in the center of the support block 5, a first rotating shaft 7 and a second rotating shaft 8 are provided between the two handle portions 3, a bolt hole 9 is provided in the middle of the second rotating shaft 8 along the radial direction, the two ends of the second rotating shaft 8 respectively pass through the two handle portions 3 and continue to extend outward, a first pin hole 10 is provided at each end of the second rotating shaft 8 along the radial direction, a first cotter pin 11 is inserted in the first pin hole 10, and a first rotating shaft 7 and a second rotating shaft 8 are provided between the first rotating shaft 7 and the second rotating shaft 8. A connecting plate 12 is provided, and the two ends of the connecting plate 12 are respectively connected to the two handles 3, and a guide block 13 extends downward from the end surface of the connecting plate 12; the lower pressing frame includes a pressing knife 14 and two symmetrically arranged pressing handles 15, and an end plate 16 and a third rotating shaft 17 are connected between the two pressing handles 15, and the third rotating shaft 17 is provided with a through hole 29 in the radial direction, the pressing knife 14 is welded to the front end surface of the end plate 16, and a pressing groove 18 is formed at the front end of the pressing knife 14, and a tooth structure 19 is provided on the side groove wall of the pressing groove 18, and the pressing knife 14 is provided with an axial hole 20, and the first rotating shaft 7 passes through the axial hole 20; the guide block 13 extends between the two pressing handles 15, and the inner sides of the two pressing handles 15 are in close contact with the end surfaces of both sides of the guide block 13;

[0025] The cable bracket includes a lifting block 21 and two symmetrically arranged supporting shoes 22, the lifting block 21 is embedded in the embedding hole 6, an abutting block 23 is vertically provided in the center of the lifting block 21, and a main hinge ear 24 is provided on each side of the abutting block 23. Two supporting shoes 22 are respectively provided on both sides of the abutting block 23, and each supporting shoe 22 is provided with a secondary hinge ear 25 on the side close to the abutting block 23. The secondary hinge ear 25 is hinged to the main hinge ear 24, and each supporting shoe 22 is placed on the bracket 4 on the side away from the abutting block 23. The tile surface of the supporting shoe 22 is stamped with a plurality of conical hole structures 26;

[0026] The T-shaped screw structure includes a screw 27 and a handle bar 28. The lower end of the screw 27 sequentially passes through the bolt hole 9 and the through hole 29. A second pin hole 30 is formed at the lower end of the screw 27. A second cotter pin 31 is inserted into the second pin hole 30. The handle bar 28 is transversely welded to the upper end of the screw 27.

[0027] The two ends of the U-shaped hanging ear 1 are respectively sleeved on the two ends of the second rotating shaft 8 and stopped by the first cotter pin 11 .

[0028] The two ends of the first rotating shaft 7 respectively pass through the two said handles 3 and continue to extend outward. The two ends of the first rotating shaft 7 are provided with a spline shaft 32, and the outer end surface of the spline shaft 32 is provided with a screw hole 33. The two ends of the first rotating shaft 7 are respectively provided with a secondary pressure knife 34, and the front end of the secondary pressure knife 34 is formed with a secondary pressure groove 35, and the side groove wall of the secondary pressure groove 35 is provided with a tooth structure 19. The rear end of the secondary pressure knife 34 is provided with a spline groove 36, and the secondary pressure knife 34 is connected to the first rotating shaft 7 through the adaptation of the spline groove 36 and the spline shaft 32, and also includes an end locking washer 37 and an end locking bolt 38, the end locking washer 37 is sleeved on the end locking bolt 38, and the end locking bolt 38 is connected to the screw hole 33, and the end locking washer 37 is clamped between the end face of the secondary pressure knife 34 and the end locking bolt 38; the side of the supporting shoe 22 away from the abutment block 23 ends at the secondary pressure groove 35.

[0029] The method and principle of using the simple underwater ROV cable grabbing tool in this embodiment are as follows:

[0030] When performing waste cable salvage operations, the ROV manipulator grasps the handle crossbar 28 and rotates it, the pressure knife 14 and the knife part 2 are gradually opened, the ROV places the cable in the holding tile 22, and reversely rotates the handle crossbar 28, the pressure knife 14 and the knife part 2 are gradually closed, the cable is pressed against the abutment block 23 by the pressure knife 14, and the two holding tiles 22 hinged to the main hinge ears 24 on both sides of the abutment block 23 respectively use the two brackets 4 as fulcrums to support and bend the cable, the cable is forced to be bent, and as the pressure knife 14 continues to press down, the folded cable is against the auxiliary pressure knife 34, and the auxiliary pressure knife 34 bends the cable downward again, presenting a wave shape. The wavy bent cable is more difficult to slip from the side, and the clamping effect is better. In order to adapt to cables of different thicknesses, the auxiliary pressure knife and the first rotating shaft 7 of the present invention adopt a movable connection method and the upward angle can be adjusted. The angle is changed by the mutual engagement of the spline groove 36 and the different tooth grooves of the spline shaft 32. After adjusting the angle, the auxiliary pressure knife 34 is pressed against the end face of the first rotating shaft 7 by the end locking gasket 37 and the end locking bolt 38; finally, the ROV grabs the sling under the sea vessel, hooks the sling to the U-shaped hanging ear 1, and the crane pulls the cable tool of this embodiment and pulls the cable out of the water together.

[0031] Anything not described in detail in the present invention is well known to those skilled in the art.

[0032] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A simple underwater ROV cable grabbing tool, characterized in that: It includes scissor-type structure, cable bracket, T-shaped screw structure and U-shaped hanging lug; The scissor-type structure includes an upper bracket and a lower pressure frame; the upper bracket includes two symmetrically arranged support plates, any one of the support plates includes a knife part and a handle part, the knife part is welded to the front end of the handle part, a bracket is formed at the front end of the knife part, a support block is connected between the two knife parts, an embedding hole is provided in the center of the support block, a first rotating shaft and a second rotating shaft are provided between the two handle parts, a bolt hole is provided in the radial direction of the second rotating shaft, both ends of the second rotating shaft respectively pass through the two handle parts and continue to extend outward, a first pin hole is provided in the radial direction of the two ends of the second rotating shaft, a first opening is inserted in the first pin hole Pin, a connecting plate is provided between the first rotating shaft and the second rotating shaft, the two ends of the connecting plate are respectively connected to the two handle parts, and a guide block is extended downward from the end surface of the connecting plate; the lower pressing frame includes a pressing knife and two symmetrically arranged pressing handles, an end plate and a third rotating shaft are connected between the two pressing handles, and the third rotating shaft is provided with a through hole in the radial direction, the pressing knife is welded to the front end surface of the end plate, a pressing groove is formed at the front end of the pressing knife, the pressing knife is provided with an axial hole, and the first rotating shaft passes through the axial hole; the guide block extends between the two pressing handles, and the inner sides of the two pressing handles are in close contact with the end surfaces of both sides of the guide block; The cable bracket includes a lifting block and two symmetrically arranged supporting shoes, the lifting block is embedded in the embedding hole, an abutting block is vertically arranged in the center of the lifting block, and a main hinge ear is provided on each side of the abutting block. The two supporting shoes are respectively arranged on both sides of the abutting block, and each supporting shoe is provided with a secondary hinge ear on the side close to the abutting block. The secondary hinge ear is hinged to the main hinge ear, and each supporting shoe is placed on the bracket on the side away from the abutting block. The T-shaped screw structure includes a screw and a handle cross bar, the lower end of the screw sequentially passes through the bolt hole and the through hole, the lower end of the screw is provided with a second pin hole, a second cotter pin is inserted into the second pin hole, and the handle cross bar is transversely welded to the upper end of the screw; The two ends of the U-shaped hanging ear are respectively sleeved on the two ends of the second rotating shaft and stopped by the first cotter pin.

2. The simple underwater ROV cable grabbing tool according to claim 1, characterized in that: The side groove walls of the pressing groove are provided with tooth structures.

3. The simple underwater ROV cable grabbing tool according to claim 1, characterized in that: The two ends of the first rotating shaft respectively pass through the two handles and continue to extend outward, and a spline shaft is provided at both ends of the first rotating shaft, and a screw hole is provided on the outer end surface of the spline shaft. An auxiliary pressure knife is provided at each end of the first rotating shaft, and an auxiliary pressure groove is formed at the front end of the auxiliary pressure knife, and a spline groove is provided at the rear end of the auxiliary pressure knife. The auxiliary pressure knife is connected to the first rotating shaft through the adaptation of the spline groove and the spline shaft, and also includes an end locking washer and an end locking bolt, the end locking washer is sleeved on the end locking bolt, the end locking bolt is connected to the screw hole, and the end locking washer is clamped between the end face of the auxiliary pressure knife and the end locking bolt.

4. The simple underwater ROV cable grabbing tool according to claim 3, characterized in that: The side groove wall of the secondary pressure groove is provided with a tooth structure.

5. The simple underwater ROV cable grabbing tool according to claim 3, characterized in that: The side of the supporting shoe away from the abutting block ends at the secondary pressure groove.

6. The simple underwater ROV cable grabbing tool according to claim 1, characterized in that: The tile surface of the supporting tile is stamped with a plurality of conical hole structures.

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