ROV matching fishing device

Abstract

A kind of ROV matching salvage device relates to underwater salvage device technical field, including vertically arranged first shell, horizontally arranged second shell in one side of first shell, the first shell and second shell are communicated with each other at contact end, slidingly connected with the lock catch mechanism in the second shell, the lock catch mechanism one end extends into first shell, forms the connecting structure matched with underwater structure hook structure, other end is connected with pull rod, pre-tightening spring is arranged between the pull rod and lock catch mechanism, handle is equipped on the top of first shell, and handle top is equipped with connecting ring.This new type can significantly simplify underwater salvage rooting process, reduce operation difficulty;Through mechanical structure, quick hooking and releasing are realized, replace complex manual operation, expand ROV operation space, improve the efficiency and reliability of underwater salvage operation.

Description

Technical Field

[0001] This invention relates to the field of underwater salvage equipment technology, specifically to an ROV-compatible salvage device carried and used by a remotely operated vehicle (ROV), suitable for quick hooking and salvage operations of underwater structures. Background Technology

[0002] In underwater salvage operations, the anchoring point is one of the key factors determining the success or failure of the operation. Currently, the salvage of underwater structures in deep-sea areas typically relies on ROVs (Remotely Operated Vehicles). Existing anchoring methods mainly include two types: one is a sling-like method, using multiple heavy-duty cables to bind the structure itself; the other is direct anchoring at the strongest points of the structure. Currently, ROVs mainly rely on their equipped robotic arms to complete underwater hooking operations, which requires a high level of skill from the operators and has a limited success rate. Therefore, it is necessary to design a dedicated anchoring device tailored to the structural characteristics of underwater structures to simplify the underwater hooking process and improve the efficiency and success rate of salvage operations. Utility Model Content

[0003] This invention discloses a ROV-compatible salvage device that enables rapid connection and release with a pre-set hook structure on an underwater structure. The purpose is to: firstly, simplify the underwater hooking process and reduce operational difficulty; and secondly, replace direct manual operation, expand the operational range, and improve ROV operational efficiency.

[0004] To achieve the above objectives, the technical solution of this invention is as follows: A ROV-compatible salvage device includes a vertically arranged first shell and a horizontally arranged second shell on one side of the first shell. The first shell and the second shell are connected to each other at the contact end. A locking mechanism is slidably connected inside the second shell. One end of the locking mechanism extends into the first shell to form a connection structure that cooperates with the hook structure of an underwater structure. The other end is connected to a pull rod. A pre-tensioning spring is provided between the pull rod and the locking mechanism. A handle is provided on the top of the first shell, and a connecting ring is provided at the top of the handle.

[0005] Preferably, both the first and second housings are cubic housing structures. The locking mechanism includes a slider slidably connected to the second housing. One end of the slider is connected to a pull rod, and the other end is connected to a connecting block. The outer circumference of the connecting block is smaller than that of the slider and extends into the first housing. The end of the connecting block located in the first housing is connected to an upwardly inclined guide block. The inclination angle of the guide block matches the inclination of the hook structure of the underwater structure.

[0006] Preferably, the underwater structure hook structure includes an inclined hook body and a hook rod integrally connected thereto. The lower end of the first housing is an open structure, allowing the hook structure to be inserted from bottom to top. The thickness of the first housing is designed to prevent the inclined hook body from rotating around the hook rod, and its width is designed so that the hook structure cannot be dislodged from the first housing after the inclined hook body is engaged with the guide block.

[0007] Preferably, the second housing is in communication with the first housing, and a stop is fixedly provided in the second housing below the through opening. The stop is used to limit the maximum stroke of the slider to the left. The through opening structure above the stop allows the guide block to retract when it is squeezed by the back of the hook structure, so that the tilted hook can move above the guide block.

[0008] Preferably, the end of the second housing away from the first housing is provided with an annular limiting block, the pull rod passes through the inner hole of the annular limiting block and slides with it, and the end of the pull rod located on the outside of the second housing is fixedly connected to a handle. The two ends of the pre-tension spring are respectively connected to the slider and the inner wall of the annular limiting block. In the natural state, one end of the slider abuts against the stop block, and the pre-tension spring is in a compressed state.

[0009] Preferably, the top of the first housing is closed, and the distance from its top to the top of the guide block is designed such that when the hook structure is disassembled, the hook structure can move upward a sufficient distance so that the guide block avoids interfering with the hook structure after being pulled to the right, thereby enabling the hook structure to detach from the lower end of the first housing.

[0010] The ROV-compatible salvage device provided by this invention has the following advantages: it can significantly simplify the underwater salvage and anchoring process and reduce the difficulty of operation; it can achieve rapid hooking and release through mechanical structure, replacing complex manual operations, expanding the ROV operating space, and improving the efficiency and reliability of underwater salvage operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the novel insertion hook.

[0012] In the diagram: 1. First housing; 2. Second housing; 3. Stop block; 4. Annular limiting block; 5. Slider; 6. Connecting block; 7. Guide block; 8. Handle; 9. Connecting ring; 10. Hook rod structure; 11. Inclined hook body; 12. Hook structure insertion direction; 13. Pull rod; 14. Preload spring; 15. Grip. Detailed Implementation

[0013] The following is a detailed description of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0014] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this invention.

[0015] This invention relates to a new type of ROV-compatible salvage device, such as... Figure 1 As shown, the system includes a vertically arranged first housing 1 and a horizontally arranged second housing 2 on one side of the first housing 1. The contact ends of the first housing 1 and the second housing 2 are connected. A locking mechanism is slidably connected inside the second housing 2. One end of the locking mechanism extends into the first housing 1 and forms a connection structure that cooperates with the hook structure. The other end of the locking mechanism is connected to a pull rod 13. A preload spring is connected between the pull rod and the locking mechanism. A handle 8 is connected to the top of the first housing 1, and a connecting ring 9 is connected to the top of the handle 8. The handle is used for gripping the underwater robot ROV, the connecting ring 9 is used to connect the cable, the pull rod 13 is used to unlock the hook structure, the first housing is used to insert the hook structure, and the locking mechanism is used to lock the hook structure inserted into the first housing.

[0016] In this embodiment, as Figure 1 As shown, both the first housing 1 and the second housing 2 are cubic housing structures. The locking mechanism includes a slider 5 that is slidably connected to the second housing 2. One end of the slider 5 is connected to a pull rod 13, and the other end is connected to a connecting block 6. The outer perimeter of the connecting block 6 is smaller than that of the slider 5 and extends into the first housing 1. The end of the connecting block 6 located in the first housing 1 is connected to an upwardly inclined guide block 7. The slope of the guide block 7 is the same as the slope of the inclined hook body 11 of the hook structure. Figure 1 The diagram shows the hook structure. In the hook structure, the angle of the inclined tail hook is the same as that of the guide block. Therefore, when the hook structure is inserted into the first housing from bottom to top, it will push the guide block to move to the right, thereby driving the slider to move in the second housing until the inclined hook 11 moves above the guide block 7.

[0017] In this embodiment, as Figure 1As shown, the hook structure includes a hook rod structure 10 integrally connected to the inclined structure 11. The lower end of the first housing 1 is open and used to allow the hook structure to be inserted from bottom to top. The thickness of the first housing 1 is such that it prevents the inclined hook 11 from rotating around the hook rod structure 10 (i.e., the hook structure cannot rotate around the guide block and come out of the first housing). The width of the first housing 1 is such that when the inclined hook 11 is hooked to the guide block 7, the hook structure cannot come out of the first housing (even if the hook structure is moved upward, it cannot move around the guide block and out of the first housing). With the above settings, after the inclined hook of the hook structure is hooked to the guide block, it cannot fall out of the first housing on its own, ensuring the firmness of the connection between the salvage device and the salvaged object.

[0018] In this embodiment, as Figure 1 As shown, the left end of the second housing 2 is connected to the first housing 1. A stop block 3 is fixedly provided in the second housing 2 at the lower end of the connection. The stop block 3 is used in conjunction with the lower surface of the left end of the slider 5 to limit the maximum displacement range of the slider 5 to the left. The structure of the connection of the second housing 2 above the stop block 3 satisfies the following: when the guide block 7 is subjected to pressure from the back of the inclined hook 11, it has a retraction space and moves the inclined hook 11 above the guide block 7.

[0019] In this embodiment, as Figure 1 As shown, the second housing 2 is provided with an annular limiting block 4 at one end away from the first housing 1. The pull rod 13 passes through the inner hole of the annular limiting block 4 and slides in cooperation with the inner hole. The end of the pull rod 13 located on the outside of the second housing 2 is fixedly connected to a handle 15. The two ends of the pre-tension spring 14 are respectively connected to one end of the slider 5 and the inner wall of the annular limiting block 4. In the natural state, one end of the slider 4 abuts against the stop block 3, and the pre-tension spring 14 is in a compressed state. The pre-tension spring is kept in a pre-tension state under the limitation of the stop block 3. When the guide block is locked with the inclined hook body, it can ensure sufficient pushing force on the guide block. Under the upward pulling force of the cable, the guide block and the hook structure cannot be separated in the first housing.

[0020] In this embodiment, as Figure 1 As shown, the top of the first housing 1 is closed. The distance from the top of the first housing 1 to the top of the guide block 7 satisfies the following condition: when the hook structure is disassembled, the hook structure can rise a sufficient distance to allow the guide block to pull to the right, thus pulling the hook structure out from the lower end of the first housing 1. In other words, when the hook structure is pushed upward a certain distance, the guide block can pull to the right. When the guide block does not interfere with the downward movement of the hook structure, the hook structure can be pulled out from the first housing.

[0021] The working principle of this new type: The underwater robot ROV holds the handle 8 and inserts the hook structure upward from the bottom opening of the first housing 1. The tilting hook 11 pushes the guide block 7 to move to the right until the tilting hook 11 moves above the guide block 7. At this time, under the action of the pre-tension spring 14, the guide block 7 returns to its original position, and the tilting hook 11 hooks together with the guide block 7, forming a limiting structure for the hook structure. At this time, the hook structure cannot detach from the first housing 1 on its own. The salvage device is fixed to the connecting ring 9 by the cable. The salvage object is salvaged out of the water and placed in the preset position. Then, the operator pushes the hook structure upward to avoid the tilting hook 11 interfering with the guide block 7, and then pulls the handle 15 outward to move the guide block 7 to the right until the hook structure can be pulled out from the bottom opening of the first housing 1. Then, the handle 15 is released.

Claims

1. A ROV-compatible salvage device, characterized in that: The device includes a vertically arranged first shell and a horizontally arranged second shell on one side of the first shell. The first shell and the second shell are connected to each other at the contact end. A locking mechanism is slidably connected inside the second shell. One end of the locking mechanism extends into the first shell to form a connection structure that cooperates with the hook structure of the underwater structure. The other end is connected to a pull rod. A pre-tensioning spring is provided between the pull rod and the locking mechanism. A handle is provided on the top of the first shell, and a connecting ring is provided at the top of the handle.

2. The ROV-compatible salvage device as described in claim 1, characterized in that: Both the first and second housings are cubic housing structures. The locking mechanism includes a slider that is slidably connected to the second housing. One end of the slider is connected to a pull rod, and the other end is connected to a connecting block. The outer circumference of the connecting block is smaller than that of the slider and extends into the first housing. The end of the connecting block located in the first housing is connected to an upwardly inclined guide block. The inclination angle of the guide block matches the inclination of the hook structure of the underwater structure.

3. The ROV-compatible salvage device as described in claim 2, characterized in that: The underwater structure hook structure includes an inclined hook body and a hook rod integrally connected thereto. The lower end of the first housing is an open structure, allowing the hook structure to be inserted from bottom to top. The thickness of the first housing is designed to prevent the inclined hook body from rotating around the hook rod, and its width is designed to prevent the hook structure from detaching from the first housing after the inclined hook body is engaged with the guide block.

4. The ROV-compatible salvage device as described in claim 3, characterized in that: The second housing is provided with a through opening at the junction of the first housing and the second housing. A stop block is fixedly installed in the second housing below the through opening. The stop block is used to limit the maximum stroke of the slider to the left. The through opening structure above the stop block allows the guide block to retract when it is squeezed by the back of the hook structure, so that the tilted hook can move above the guide block.

5. The ROV-compatible salvage device as described in claim 4, characterized in that: The second housing has an annular limiting block at the end away from the first housing. The pull rod passes through the inner hole of the annular limiting block and slides with it. A handle is fixedly connected to the end of the pull rod located on the outside of the second housing. The two ends of the pre-tension spring are respectively connected to the slider and the inner wall of the annular limiting block. In the natural state, one end of the slider abuts against the stop block, and the pre-tension spring is in a compressed state.

6. The ROV-compatible salvage device as described in claim 5, characterized in that: The top of the first housing is closed, and the distance from its top to the top of the guide block is designed such that when the hook structure is disassembled, the hook structure can move up a sufficient distance so that the guide block avoids interfering with the hook structure after being pulled to the right, thus allowing the hook structure to detach from the lower end of the first housing.

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