Large row hook fishing device for water area rescue

Abstract

The invention relates to the related technical field of fishing devices, in particular to a water area rescue large-row hook fishing device which comprises a plurality of combined row plates, assembling blocks are arranged at the two ends of the combined row plates and used for splicing and adjusting the length, and a plurality of sleeves are installed at the front ends of the combined row plates through partition plates; an elastic triggering assembly is arranged in the sleeve, a fishing rope penetrates through the elastic triggering assembly, the bottom end of the fishing rope is connected with a fishing hook, the top end is connected with a mounting column, and a compressed air bag is arranged at the top of the mounting column; a working box is arranged above the elastic triggering assembly, and the top of the working box locks the mounting column. When a certain fishing hook hooks an object, the elastic triggering assembly is pressed to trigger the working box, the working box relieves locking of the mounting column and inflates the compressed air bag, and the fishing hook independently floats upwards. The length of the device can be flexibly assembled and adjusted, independent lifting of a single hook is supported, the problems that the length of an existing fishing device is inconvenient to adjust, and overall lifting is inconvenient are solved, the operation difficulty of rescue workers is lowered, and the rescue efficiency and operation convenience are improved.

Description

Technical Field

[0001] This invention relates to the technical field of salvage devices, specifically a large-scale dredger salvage device for water rescue. Background Technology

[0002] In water rescue operations, rescuers often use large-scale grappling hooks to search for and retrieve underwater objects. In existing technology, multiple grappling hooks are typically arranged at equal intervals and fixed to a main towing rod or rope, forming a large-scale grappling hook structure. This structure is moved underwater by towing or lowering, and the hooks are used to hook and retrieve the target object, thus achieving the retrieval objective. Due to its wide coverage and ease of operation, this type of structure is widely used in underwater rescue and sunken object retrieval.

[0003] However, existing large-scale grappling hooks for water rescue still have the following shortcomings: First, the overall length and hook arrangement of the device are often fixed, making it difficult to flexibly adjust according to different water conditions or retrieval needs. The assembly and disassembly processes are particularly cumbersome, hindering rapid transportation and on-site adaptation. Second, when one or a few hooks snag an object, because all hooks are typically rigidly or flexibly connected to the same main traction structure, the operator often needs to lift the entire hook system to remove the snagged object. This process is not only time-consuming and labor-intensive, but may also lead to hook detachment or device damage due to the large overall weight and uneven stress, hindering the retrieval operation and posing risks to on-site personnel.

[0004] Therefore, there is an urgent need for a large-scale retrieval device for water rescue that allows for easy adjustment of the length and hook layout and enables independent operation of individual retrieval hooks, in order to improve the flexibility and ease of operation of rescue operations. Summary of the Invention

[0005] The purpose of this invention is to provide a large-scale dredging and salvage device for water rescue, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A large-scale dredger retrieval device for water rescue includes: The combined panel is set to a certain quantity. The two ends of the combined panel are provided with assembly blocks for assembly. The front end of the combined panel is provided with a certain number of spacers at equal intervals along its length. The front end of the combined panel is provided with a certain number of sleeves through the spacers. The elastic triggering component is inserted and connected inside the sleeve, and a retrieval rope is inserted inside it. When the elastic triggering component is compressed to a certain extent, it triggers the operation of the working box. The retrieval hook is attached to the bottom of the retrieval rope; Install the column, which is connected to the top of the salvage rope; Compressible airbag, mounting column, top of the mounting column; The working box is installed at the top of the elastic trigger assembly, and its top is locked to the bottom of the mounting column. The upper part of the retrieval rope passes through the inner cavity of the working box. After being triggered by the elastic trigger assembly, the working box operates and inflates the compressed air bag, while simultaneously releasing the lock on the mounting column.

[0007] As a further embodiment of the present invention: cylindrical holes are provided in the center of both sides of the partition plate, and rotating shafts are connected to the outer walls of both sides of the sleeve, with the outer ends of the rotating shafts embedded in the corresponding cylindrical holes.

[0008] As a further embodiment of the present invention: a rectangular groove is provided at the front top of the combined plate, and a rectangular plate is detachably installed in the rectangular groove. The partition plate is composed of a lower plate and an upper plate. The lower plate is integrally formed and disposed at the lower front end of the combined plate, and the upper plate is integrally formed and disposed at the front end of the rectangular plate. The top two sides of the lower plate are provided with upper semi-cylindrical grooves, and the bottom two sides of the upper plate are provided with lower semi-cylindrical grooves. The cylindrical hole is formed by the combination of the upper semi-cylindrical groove and the lower semi-cylindrical groove.

[0009] As a further embodiment of the present invention: the elastic triggering component includes a vertical cylinder, a spring, and a vertical rod. The vertical cylinder is inserted and fitted inside a sleeve. The spring is sleeved on the upper part of the vertical cylinder. The top end of the spring is connected to the bottom end of the working box, and the bottom end of the spring is connected to the top end of the sleeve. The bottom of the vertical rod is installed on the top outer wall of the sleeve. A through hole is provided on one side of the bottom of the working box, and the top of the vertical rod is slidably and sealingly fitted inside the through hole.

[0010] As a further embodiment of the present invention: a cylindrical cavity is provided in the center of the interior of the working box, the bottom end of the cylindrical cavity is connected to the top end of the vertical cylinder, and the bottom of the mounting column is inserted into the top of the cylindrical cavity.

[0011] As a further embodiment of the present invention: the interior of the working box is divided into working chambers on the periphery of the cylindrical cavity. A control box and an electric control pin are installed on one inner wall of the working chamber. A positioning slot that cooperates with the electric control pin is provided on one side of the mounting column. A pressure sensor is installed on the inner top surface of one side of the working chamber. The pressure sensor is located directly above the vertical rod.

[0012] As a further embodiment of the present invention: a gas cylinder is installed on the lower part of the other side of the working chamber, an electrically controlled gas valve is installed on the top of the gas cylinder, the electrically controlled gas valve is connected to the control box circuit, a receiving groove is provided on one side of the top of the working box, a flexible hose is coiled in the receiving groove, the top of the flexible hose is connected to the bottom inlet of the compressed air bag, and the bottom of the flexible hose is connected to the outlet of the electrically controlled gas valve.

[0013] This invention offers the following advantages: By employing a modular combined panel structure and utilizing assembly blocks at both ends, rescue personnel can easily and quickly assemble and disassemble multiple combined panels according to the actual water environment and salvage needs without the need for complex tools. This allows for flexible adjustment of the overall salvage device's coverage length and hook layout, solving the problem of traditional large hook systems being difficult to assemble, install, and adjust in length. Simultaneously, each hook, through an independent elastic trigger component, works in conjunction with a working box. When a hook snags an object underwater, the corresponding elastic trigger component is compressed, automatically triggering the working box above it. This releases the working box from the mounting column and inflates the compressed air bladder, allowing only the single hook, its connected mounting column, and the compressed air bladder to rise to the surface without lifting the entire hook system. This greatly simplifies the salvage operation, improves efficiency and safety, and effectively solves the inconvenience of having to lift the entire hook when it is attached to a single object in existing technologies. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of an embodiment of the present invention.

[0015] Figure 2 This is a top view of the combined arrangement panel in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the combination of the combined arrangement panels in an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram showing the disassembly of the combined panel in an embodiment of the present invention.

[0018] Figure 5 This is a front view of the internal structure of the work box in an embodiment of the present invention.

[0019] In the diagram: 1. Combined panel; 2. Spare plate; 3. Sleeve; 4. Rotating shaft; 5. Handle; 6. Assembly block; 7. Cylindrical hole; 8. Rectangular groove; 9. Rectangular plate; 10. Lower plate; 11. Upper plate; 12. Lower semi-cylindrical groove; 13. Upper semi-cylindrical groove; 14. Working box; 15. Elastic trigger assembly; 16. Mounting column; 17. Compressed airbag; 18. Retrieval rope; 19. Retrieval hook; 20. Working chamber; 21. Pressure sensor; 22. Control box; 23. Electrically controlled pin; 24. Gas cylinder; 25. Electrically controlled air valve; 26. Storage slot; 27. Hose; 28. Positioning slot; 29. ​​Vertical cylinder; 30. Spring; 31. Vertical rod; 32. Through hole; 33. Cylindrical cavity. Detailed Implementation

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0022] Example 1: Please refer to Figures 1 to 5 A large-scale retrieval device for water rescue includes a combined retrieval plate 1, an elastic triggering component 15, a retrieval hook 19, a mounting column 16, a compressed airbag 17, and a working box 14.

[0023] The number of combined deck panels 1 is set to several. The combined deck panels 1 are typically made of lightweight, high-strength aluminum alloy or engineering plastics to balance structural strength and ease of operation in water. Each end of the combined deck panel 1 is equipped with assembly blocks 6 for quick assembly. The assembly blocks 6 can be connected using mortise and tenon joints, snap-fit ​​fasteners, or bolts to achieve reliable connection and length adjustment between multiple combined deck panels 1. A handle 5 is installed at the top of one of the combined deck panels 1. The handle 5 has anti-slip textures on its surface for easy connection to rescue boats or other equipment, or for manual lifting. Several spacer plates 2 are evenly spaced along the length of the front end of the combined deck panel 1, and several sleeves 3 are installed at the front end of the combined deck panel 1 through the spacer plates 2.

[0024] The elastic triggering component 15 is inserted and connected inside the sleeve 3, and a high-strength nylon or composite fiber retrieval rope 18 is inserted inside it. The elastic triggering component 15 is compressed when subjected to a certain axial pressure, triggering the operation of the working box 14.

[0025] The retrieval hook 19 is forged from corrosion-resistant alloy steel and is securely connected to the bottom end of the retrieval rope 18 by shackle or braiding.

[0026] The mounting post 16 is typically a solid or hollow metal post with a disc-shaped top and its bottom end fixedly connected to the top of the retrieval rope 18 via a knot or clip.

[0027] The compressed airbag 17 is made of high-strength rubber or polyurethane-coated fabric and is fixedly installed on the top of the mounting column 16 by straps or clamps. When inflated, it can provide sufficient buoyancy.

[0028] The working box 14 is a waterproof and sealed structure, installed on the top of the elastic trigger assembly 15 by bolts or slots. The top of the working box 14 is equipped with a locking mechanism for axially limiting and locking the bottom of the mounting column 16. The upper part of the retrieval rope 18 passes through the inner cavity of the working box 14. The working box 14 begins to operate after being triggered by the elastic trigger assembly 15, inflating the compressed air bag 17 and simultaneously releasing the lock on the mounting column 16.

[0029] The spacer plate 2 has cylindrical holes 7 machined in the center of both sides. The sleeve 3 has rotating shafts 4 welded or integrally formed on both outer walls. The outer ends of the rotating shafts 4 are embedded in the corresponding cylindrical holes 7 through bearings or direct clearance fit, allowing the sleeve 3 to rotate freely within a certain angle to adapt to changes in underwater topography. The top front of the combined plate 1 has a rectangular groove 8, and a rectangular plate 9 is detachably installed in the rectangular groove 8 through a slide rail or positioning pin. The spacer plate 2 is composed of a lower plate 10 and an upper plate 11. The lower plate 10 is integrally formed and set at the lower front end of the combined plate 1, and the upper plate 11 is integrally formed and set at the front end of the rectangular plate 9. The top two sides of the lower plate 10 are milled with upper semi-cylindrical grooves 13, and the bottom two sides of the upper plate 11 are milled with lower semi-cylindrical grooves 12. When the rectangular plate 9 is installed in place, the upper semi-cylindrical grooves 13 and lower semi-cylindrical grooves 12 are aligned to form a complete cylindrical hole 7.

[0030] The elastic trigger assembly 15 includes a vertical cylinder 29, a spring 30, and a vertical rod 31. The vertical cylinder 29 is inserted and fitted inside the sleeve 3, and can slide axially along the inner wall of the sleeve 3. The spring 30 is sleeved on the upper part of the vertical cylinder 29, and the top end of the spring 30 is connected to the bottom end of the working box 14 through a hook or pressure plate. The bottom end of the spring 30 is connected to the top end of the sleeve 3 through a base. The bottom of the vertical rod 31 is fixedly installed on the top outer wall of the sleeve 3 by threads or welding. A through hole 32 is machined on one side of the bottom of the working box 14. The top of the vertical rod 31 passes through the through hole 32 and slides and seals with it to ensure that the inside of the working box 14 is sealed and waterproof.

[0031] Example 2: See Figure 1 , Figure 2 , Figure 5 Based on Embodiment 1, a cylindrical cavity 33 is provided in the center of the working box 14 through a partition. The bottom end of the cylindrical cavity 33 is connected to the top end of the vertical cylinder 29 to form a pressure transmission channel. The bottom of the mounting column 16 is inserted into the top of the cylindrical cavity 33, and a dynamic seal is achieved through a sealing ring.

[0032] The interior of the working box 14 is separated from the cylindrical cavity 33 by a sealed working chamber 20. A control box 22 and an electrical control pin 23 are mounted on one inner wall of the working chamber 20 via a bracket. The control box 22 integrates control circuitry and a power supply. A positioning slot 28, which mates with the electrical control pin 23, is machined on one side of the mounting column 16. A pressure sensor 21 is mounted on the inner top surface of one side of the working chamber 20. The pressure sensor 21 is positioned directly above the vertical rod 31 and is used to detect the lifting action of the vertical rod 31.

[0033] A high-pressure gas cylinder 24 is mounted on the lower side of the other side of the working chamber 20 via a fixed base. An electrically controlled air valve 25 is mounted on the top of the gas cylinder 24. The electrically controlled air valve 25 is connected to the control box 22 via a wire and is controlled by its switching. A receiving groove 26 is machined on one side of the top of the working box 14, and a flexible hose 27 is coiled and stored in the receiving groove 26. The top of the hose 27 is connected to the bottom inlet of the compressed air bag 17 via a quick connector, and the bottom of the hose 27 is connected to the outlet of the electrically controlled air valve 25 via a threaded connection. The hose 27 is relatively long to meet the buoyancy requirements of the compressed air bag 17. If the device is used in waters with greater depth and the length of the hose 27 is insufficient for buoyancy, a detachable interface that can detach under greater tension can be provided at the connection between the hose 27 and the electrically controlled air valve 25, and a one-way air inlet valve can be installed in the interface to prevent the compressed air bag 17 from leaking after expansion.

[0034] Working principle: When a retrieval hook 19 snags a target object underwater, the hook 19 pulls downwards via the retrieval rope 18, actuating its corresponding elastic trigger component 15. Under this force, the vertical cylinder 29 within the elastic trigger component 15 moves upwards relative to the sleeve 3, simultaneously compressing the spring 30 at its upper part. The vertical rod 31 mounted on the top of the sleeve 3 also moves upwards relative to the sleeve, its top moving upwards within the working chamber 20.

[0035] When the spring 30 is compressed to the preset stroke, the top of the vertical rod 31 will contact and trigger the pressure sensor 21. The pressure sensor 21 converts the detected pressure signal into an electrical signal and transmits it to the control box 22. After receiving the signal, the control box 22 immediately executes two commands according to the preset program: first, it controls the electromagnet of the electrically controlled pin 23 to retract the pin, thereby removing it from the positioning slot 28 on the side of the mounting post 16 and releasing the axial lock on the mounting post 16; second, it controls the electrically controlled gas valve 25 to open, releasing the high-pressure gas stored in the gas cylinder 24.

[0036] High-pressure gas enters the hose 27 through the electrically controlled gas valve 25 and is quickly inflated into the compressed air bag 17 via the hose 27. The inflated compressed air bag 17 generates strong buoyancy, which drives the connected mounting column 16, the salvage rope 18, and the salvage hook 19 with the object attached to it to rise quickly to the water surface.

[0037] Meanwhile, the other untriggered salvage units retain their elastic trigger components 15 in their initial state, and their mounting posts 16 are still locked to the work box 14 by their respective electronically controlled pins 23. Therefore, the main frame of the entire device (combined panels 1, spacers 2, etc.) remains in its original underwater position. Operators only need to locate and retrieve the single salvage hooks 19 that have floated to the surface and their salvaged items.

[0038] Through the above process, this device achieves independent detection, triggering, and floating of a single hook, avoiding the drawback of traditional devices that require overall lifting. Furthermore, the modular combination panel structure allows for flexible length adjustments and rapid deployment based on the width of the operating water area, effectively improving the efficiency, flexibility, and operational safety of water rescue and salvage operations.

[0039] All components of this invention are general standard parts or parts known to those skilled in the art. Their structure and principles are readily known to those skilled in the art through technical manuals or conventional experimental methods. It is obvious to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-scale grappling hook salvage device for water rescue, characterized in that, include: The combined panel is set to a certain quantity. The two ends of the combined panel are provided with assembly blocks for assembly. The front end of the combined panel is provided with a certain number of spacers at equal intervals along its length. The front end of the combined panel is provided with a certain number of sleeves through the spacers. The elastic triggering component is inserted and connected inside the sleeve, and a retrieval rope is inserted inside it. When the elastic triggering component is compressed to a certain extent, it triggers the operation of the working box. The retrieval hook is attached to the bottom of the retrieval rope; Install the column, which is connected to the top of the salvage rope; Compressible airbag, mounting column, top of the mounting column; The working box is installed at the top of the elastic trigger assembly, and its top is locked to the bottom of the mounting column. The upper part of the retrieval rope passes through the inner cavity of the working box. After being triggered by the elastic trigger assembly, the working box operates and inflates the compressed air bag, while simultaneously releasing the lock on the mounting column.

2. The large-scale grappling hook device for water rescue according to claim 1, characterized in that, The spacer has cylindrical holes in the center of both sides, and the sleeve has rotating shafts connected to the outer walls of both sides, with the outer ends of the rotating shafts embedded in the corresponding cylindrical holes.

3. The large-scale grappling hook device for water rescue according to claim 2, characterized in that, The top front of the combined panel is provided with a rectangular groove, and a rectangular plate is detachably installed in the rectangular groove. The partition plate is composed of a lower plate and an upper plate. The lower plate is integrally formed and is located at the lower front end of the combined panel. The upper plate is integrally formed and is located at the front end of the rectangular plate. The top two sides of the lower plate are provided with upper semi-cylindrical grooves, and the bottom two sides of the upper plate are provided with lower semi-cylindrical grooves. The cylindrical hole is formed by the combination of the upper semi-cylindrical groove and the lower semi-cylindrical groove.

4. The large-scale grappling hook device for water rescue according to claim 1, characterized in that, The elastic triggering assembly includes a vertical cylinder, a spring, and a vertical rod. The vertical cylinder is inserted and fitted inside a sleeve. The spring is sleeved on the upper part of the vertical cylinder. The top end of the spring is connected to the bottom end of the working box, and the bottom end of the spring is connected to the top end of the sleeve. The bottom of the vertical rod is installed on the top outer wall of the sleeve. A through hole is provided on one side of the bottom of the working box, and the top of the vertical rod is slidably and sealingly fitted inside the through hole.

5. The large-scale grappling hook device for water rescue according to claim 4, characterized in that, The work box has a cylindrical cavity in the center, the bottom of which is connected to the top of the vertical cylinder, and the bottom of the mounting column is inserted into the top of the cylindrical cavity.

6. The large-scale grappling hook device for water rescue according to claim 5, characterized in that, The working box has a working chamber separated from the cylindrical cavity. A control box and an electric control pin are installed on one inner wall of the working chamber. A positioning slot that mates with the electric control pin is provided on one side of the mounting column. A pressure sensor is installed on the inner top surface of one side of the working chamber and is located directly above the vertical rod.

7. A large-scale grappling hook for water rescue according to claim 6, characterized in that, A gas cylinder is installed on the lower part of the other side of the working chamber. An electrically controlled air valve is installed on the top of the gas cylinder. The electrically controlled air valve is connected to the control box wiring. A receiving groove is provided on one side of the top of the working box. A flexible hose is coiled in the receiving groove. The top of the flexible hose is connected to the bottom inlet of the compressed air bag, and the bottom of the flexible hose is connected to the outlet of the electrically controlled air valve.

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