Marine equipment lowering system and method

Abstract

The present application relates to the technical field of intelligent manufacturing equipment industry, and provides a marine equipment lowering system and a lowering method. In the marine equipment lowering system, a construction ship is a mounting carrier, a main hoisting mechanism is arranged on the construction ship, and an operation area is limited to an operation area of the construction ship. A guide support mechanism can extend outwardly to a ship side, and cooperates with the main hoisting mechanism to adjust the marine equipment to above a target position on the seabed. One end of a hoisting rope is fixed with a rope winding and unwinding mechanism, and the other end is connected with the main hoisting mechanism after penetrating the guide support mechanism and a marine equipment lifting ring. The lowering system can complete hoisting, lowering and unhooking operations in the operation area of the construction ship, avoids the risk of underwater operation of divers, does not need to be equipped with high-priced underwater remote control robots, greatly reduces equipment and operation costs, gets rid of environmental limitations such as sea conditions and visibility, prolongs the operation window period, improves operation efficiency and shortens the cycle.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing equipment technology, and in particular to a marine equipment deployment system and deployment method. Background Technology

[0002] In fields such as marine observation, nearshore aquaculture, nearshore engineering, and offshore wind power auxiliary operations, the demand for hoisting and lowering small equipment in shallow waters is very frequent. Currently, most solutions require underwater unhooking, which not only poses safety risks for divers operating underwater or relies on expensive remotely operated vehicles (ROVs) with high purchase and maintenance costs, but is also severely limited by environmental factors such as sea conditions and visibility, resulting in low operational efficiency and lengthy cycles. Some non-underwater unhooking solutions require additional specialized devices such as release mechanisms, increasing equipment investment costs. Furthermore, some solutions require cutting steel cables to achieve unhooking, leading to resource waste. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a marine equipment lowering system and method.

[0004] A first aspect of the present invention provides a marine equipment lowering system, comprising: a construction vessel; a main lifting mechanism disposed on the construction vessel, the main lifting mechanism being capable of providing main lifting force for the marine equipment, the lifting operation area of ​​the main lifting mechanism being located within the operation area of ​​the construction vessel; a rope reeling and deployment mechanism disposed on the construction vessel; a guide support mechanism disposed on the construction vessel and capable of extending outwards from the hull of the construction vessel to coordinate with the main lifting mechanism to adjust the marine equipment to a position above a target location on the seabed; and a lifting rope, one end of which is connected to the rope reeling and deployment mechanism, and the other end of which is capable of sequentially passing through the guide support mechanism and the marine equipment and being detachably connected to the main lifting mechanism.

[0005] According to a marine equipment lowering system provided by the present invention, the other end of the hoisting rope can be detachably connected to the main hoisting mechanism.

[0006] According to a marine equipment lowering system provided by the present invention, the main lifting mechanism includes: a rotating base disposed on the deck of the construction vessel, the rotating base being rotatable about its vertical central axis; a base boom section, one end of which is connected to the rotating base; a main boom section, one end of which is rotatably connected to the other end of the base boom section; and a hook ring connected to the other end of the main boom section, the lifting operation area of ​​which is located within the operating area of ​​the construction vessel.

[0007] According to a marine equipment lowering system provided by the present invention, the guiding support mechanism includes: a support arm rotatably connected to the construction vessel; a guide pulley connected to the support arm; and a tilting drive device connected to the support arm for driving the support arm to tilt the guide pulley between the working area of ​​the construction vessel and the outer side area of ​​the construction vessel.

[0008] According to the present invention, a marine equipment lowering system is provided, wherein the rope lowering mechanism is a winch mechanism.

[0009] According to a marine equipment lowering system provided by the present invention, one end of the hoisting rope is connected to the winch mechanism, and the other end of the hoisting rope can move sequentially through the guide pulley and the marine equipment, and is detachably connected to the hook and loop.

[0010] A second aspect of the present invention provides a method for lowering marine equipment based on the marine equipment lowering system described above, comprising the following steps: connecting a hoisting rope to a rope reeling mechanism, a guide support mechanism, marine equipment, and a main hoisting mechanism within the operating area of ​​a construction vessel; driving the guide support mechanism to extend to the outer side of the construction vessel and adjusting the main hoisting mechanism to move the marine equipment above the target lowering position; releasing the hoisting rope through the rope reeling mechanism to lower the marine equipment to the target seabed position; releasing the hoisting rope from the main hoisting mechanism within the operating area of ​​the construction vessel; and reeling in the hoisting rope through the rope reeling mechanism.

[0011] According to a method for lowering a crane according to the present invention, the step of connecting the lifting rope with the rope winding and unwinding mechanism, the guide support mechanism, the marine equipment, and the main crane mechanism within the working area of ​​the construction vessel specifically includes: fixing one end of the lifting rope to the drum of the rope winding and unwinding mechanism; operating the rope winding and unwinding mechanism to wind up the lifting rope to adjust the lifting rope to a length suitable for the operation; and detachably connecting the other end of the lifting rope to the hook of the main crane mechanism after sequentially passing through the guide pulley of the guide support mechanism and the lifting ring of the marine equipment.

[0012] According to a lowering method provided by the present invention, the step of the drive guide support mechanism extending to the outer area of ​​the construction vessel and adjusting the main crane mechanism to move the marine equipment above the target lowering position specifically includes: adjusting the rotation angle of the flipping drive mechanism, the rotating base, and the included angle between the main crane boom section and the foundation boom section to move the marine equipment above the target lowering position.

[0013] According to a method for lowering equipment provided by the present invention, the step of the rope release mechanism releasing the hoisting rope to lower marine equipment to the target position on the seabed specifically includes: the winch mechanism releasing the hoisting rope until the marine equipment falls to the target position on the seabed and sits on the bottom, so that the hoisting rope is in a slack state.

[0014] According to a lowering method provided by the present invention, the step of the rope winding and unwinding mechanism winding and hoisting rope specifically includes: a winch mechanism winding and hoisting rope; a return-positioning guide support mechanism and a main hoisting mechanism.

[0015] The marine equipment lifting equipment provided by this invention includes a construction vessel, a main lifting mechanism, a rope reeling and deployment mechanism, a guide support mechanism, and lifting ropes. The construction vessel serves as the basic installation carrier. The main lifting mechanism, located on the construction vessel, provides a stable main lifting force for the marine equipment. The lifting operation area of ​​the main lifting mechanism is located within the working area of ​​the construction vessel, which includes, but is not limited to, the deck working area. The rope reeling and deployment mechanism, also located on the construction vessel, is the power actuator for reeling in and deploying the lifting ropes, cooperating to lower the marine equipment and retrieve the lifting ropes. The guide support mechanism, also located on the construction vessel, extends beyond the ship's hull and, through coordinated action with the main lifting mechanism, precisely adjusts the position of the marine equipment, moving it directly above the target location on the seabed. One end of the lifting rope is fixedly connected to the rope reeling and deployment mechanism, and the other end sequentially passes through the guide support mechanism and the lifting ring of the marine equipment before connecting to the main lifting mechanism.

[0016] Before lowering the marine equipment, the initial length adjustment and connection preparation of the lifting ropes are completed: one end of the lifting rope is fixedly connected to the rope reeling mechanism, and then the rope reeling mechanism is operated to adjust the lifting rope to a suitable length for the operation, allowing the other end of the rope to smoothly pass through the guide support mechanism and the lifting ring of the marine equipment, and finally connect with the main lifting mechanism within the working area of ​​the construction vessel, thus forming a closed force loop from the rope reeling mechanism, guide support mechanism, marine equipment to the main lifting mechanism; after the connection is completed, the guide support mechanism is driven to extend outward to the area of ​​the construction vessel and adjusted to a suitable working posture, while the main lifting mechanism is operated to provide stable main lifting force to lift the marine equipment smoothly. The coordinated operation of the main lifting mechanism and the guide support mechanism gradually adjusts the marine equipment to be directly above the target position on the seabed. After the equipment is in position, the rope reeling mechanism is controlled to gradually release the lifting rope, allowing the marine equipment to be lowered steadily in the vertical direction, and finally land smoothly at the target position on the seabed.

[0017] Once the marine equipment is confirmed to be stably seated on the seabed, the lifting ropes will be relaxed and no longer under tension. Workers can then directly connect and disconnect the lifting ropes from the main lifting mechanism within the work area of ​​the construction vessel. After the connection and disconnection are completed, the lifting ropes will detach from the main lifting mechanism, and the rope reeling mechanism will be activated. During the reeling process, the lifting ropes will detach from the marine equipment and gradually be retrieved to their initial state. After the ropes are retrieved, the guide support mechanism and the main lifting mechanism will be returned to their appropriate positions on the deck area of ​​the construction vessel.

[0018] As described above, the marine equipment lowering system provided by this invention can complete hoisting, lowering, and unhooking operations within the work area of ​​the construction vessel, fundamentally avoiding the safety risks of underwater operations for divers. Furthermore, it eliminates the need for expensive underwater remotely operated robots, significantly reducing equipment investment and labor costs. The unhooking operation within the work area of ​​the construction vessel is also free from the limitations of sea conditions and visibility, effectively extending the operational window. Moreover, the entire process of connecting, hoisting, unhooking, and retrieving the equipment is simple and efficient, requiring no cumbersome underwater preparation and debugging procedures, greatly improving the efficiency of hoisting small equipment in shallow waters and shortening the operation cycle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the marine equipment lowering system provided by the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the marine equipment lowering system provided by the present invention. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the marine equipment lowering system provided by the present invention. Figure 3 .

[0023] Figure 4 This is a schematic diagram of the marine equipment lowering system provided by the present invention. Figure 4 .

[0024] Reference numerals: 100, construction vessel; 200, main lifting mechanism; 210, rotating base; 220, foundation boom section; 230, main lifting boom section; 240, hook and ring; 300, rope winding and unwinding mechanism; 400, guide support mechanism; 410, support arm; 420, guide pulley; 430, tilting drive device; 500, lifting rope; 600, marine equipment. Detailed Implementation

[0025] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "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 the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0028] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples and features of different embodiments or examples described in this specification to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The following is combined with Figures 1 to 4 This invention describes a marine equipment lowering system and method provided by an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.

[0031] An embodiment of the first aspect of the present invention provides a marine equipment lowering system, such as... Figures 1 to 4 As shown, it includes: a construction vessel 100; a main lifting mechanism 200, which is mounted on the construction vessel 100 and provides main lifting force for the marine equipment 600, with the lifting operation area of ​​the main lifting mechanism 200 located within the operation area of ​​the construction vessel 100; a rope retrieval mechanism 300, which is mounted on the construction vessel 100; a guide support mechanism 400, which is mounted on the construction vessel 100 and extends outward to the hull of the construction vessel 100 to coordinate with the main lifting mechanism 200 to adjust the marine equipment 600 to a position above the seabed target; and a lifting rope 500, one end of which is connected to the rope retrieval mechanism 300, and the other end of which can sequentially pass through the guide support mechanism 400 and the marine equipment 600 and connect to the main lifting mechanism 200.

[0032] In other words, the marine equipment 600 lifting equipment provided by this invention includes a construction vessel 100, a main lifting mechanism 200, a rope reeling and deployment mechanism 300, a guide support mechanism 400, and a lifting rope 500. The construction vessel 100 serves as the basic installation carrier. The main lifting mechanism 200 is mounted on the construction vessel 100 and provides a stable main lifting force for the marine equipment 600. The lifting operation area of ​​the main lifting mechanism 200 is located within the operation area of ​​the construction vessel 100. The rope reeling and deployment mechanism 300 is mounted on the construction vessel 100 and serves as the power actuator for reeling in and deploying the lifting rope 500, cooperating to complete the lowering of the marine equipment 600 and the retrieval of the lifting rope 500. The guide support mechanism 400 is mounted on the construction vessel 100 and extends outwards from the ship's side. Through coordinated action with the main lifting mechanism 200, it precisely adjusts the position of the marine equipment 600, moving it directly above the target location on the seabed. One end of the hoisting rope 500 is fixedly connected to the rope winding and unwinding mechanism 300, and the other end moves through the guide support mechanism 400 and the lifting ring of the marine equipment 600 in sequence before being connected to the main hoisting mechanism 200.

[0033] Before lowering the marine equipment 600, the initial length adjustment and connection preparation of the hoisting rope 500 must be completed: such as Figure 1 As shown, one end of the lifting rope 500 is fixedly connected to the rope winding and unwinding mechanism 300. Then, the rope winding and unwinding mechanism 300 is operated to adjust the lifting rope 500 to a suitable length for the operation, allowing the other end of the rope to smoothly pass through the guide support mechanism 400 and the lifting ring of the marine equipment 600, and finally connect to the main lifting mechanism 200, which is confined to the working area of ​​the construction vessel 100. This forms a closed force loop from the rope winding and unwinding mechanism 300, the guide support mechanism 400, the marine equipment 600 to the main lifting mechanism 200. Figure 2 As shown, after the connection is completed, the drive guide support mechanism 400 extends to the outer area of ​​the construction vessel 100 and adjusts to a suitable working posture. Simultaneously, the main crane mechanism 200 provides a stable main lifting force to smoothly lift the marine equipment 600. The coordinated operation of the main crane mechanism 200 and the guide support mechanism 400 gradually adjusts the marine equipment 600 to directly above the target position on the seabed. Figure 3 As shown, after the equipment position is adjusted to the correct position, the control rope release mechanism 300 gradually releases the hoisting rope 500, so that the marine equipment 600 is steadily lowered in the vertical direction and finally lands smoothly at the target position on the seabed.

[0034] like Figure 4As shown, after confirming that the marine equipment 600 is stably seated on the bottom, the lifting rope 500 loses its tension and becomes slack. The workers can then directly complete the connection and unlocking operation between the lifting rope 500 and the main lifting mechanism 200 within the working area of ​​the construction vessel 100. After the connection and unlocking are completed, the lifting rope 500 is detached from the main lifting mechanism 200, and the rope winding mechanism 300 is activated. During the winding process, the lifting rope 500 will detach from the marine equipment 600 and will be gradually retrieved to its initial state. After the rope is retrieved, the guide support mechanism 400 and the main lifting mechanism 200 will be returned to their appropriate positions within the working area of ​​the construction vessel 100.

[0035] As described above, the marine equipment lowering system provided by this invention can complete hoisting, lowering, and connection / unlocking operations within the working area of ​​the construction vessel 100, fundamentally avoiding the safety risks of underwater operations for divers. Furthermore, it eliminates the need for expensive underwater remotely operated robots, significantly reducing equipment investment and labor costs. The unhooking operation within the working area of ​​the construction vessel 100 is also free from the limitations of sea conditions and visibility, effectively extending the operational window. Moreover, the entire process of connecting, hoisting, unhooking, and retrieving the equipment is simple and efficient, requiring no cumbersome underwater preparation and debugging procedures, greatly improving the efficiency of hoisting small equipment in shallow waters and shortening the operation cycle.

[0036] The marine equipment described in this invention refers to various devices suitable for deployment operations in marine environments, and is not limited to specific equipment types. It may include seabed observation equipment, hydrological monitoring devices, seabed anchoring bases, gravity ballast blocks, offshore wind power supporting seabed devices, nearshore aquaculture bases, subsea pipeline counterweight structures, underwater sensor cabins, and various small underwater operation equipment, etc.

[0037] In one embodiment of the present invention, the other end of the hoisting rope 500 can be detachably connected to the main hoisting mechanism 200.

[0038] Unhooking is achieved through a detachable connection between the lifting rope 500 and the main lifting mechanism 200, eliminating the need for additional release devices or other specialized unhooking equipment. This simplifies the overall structure of the equipment and reduces costs. After unhooking, the lifting rope 500 can be completely retrieved via the rope retraction mechanism 300, enabling rope reuse and preventing resource waste.

[0039] In one embodiment of the present invention, the main lifting mechanism 200 includes: a rotating base 210, which is disposed on the deck of the construction vessel 100 and is capable of rotating about its vertical central axis; a base boom 220, one end of which is connected to the rotating base 210; a main boom 230, one end of which is rotatably connected to the other end of the base boom 220; and a hook 240, which is connected to the other end of the main boom 230 and whose lifting operation area is located within the operation area of ​​the construction vessel 100.

[0040] In one embodiment of the present invention, the guide support mechanism 400 includes: a support arm 410 rotatably connected to the construction vessel 100; a guide pulley 420 connected to the support arm 410; and a tilting drive device 430 connected to the support arm 410 for driving the support arm 410 to tilt the guide pulley 420 between the working area of ​​the construction vessel 100 and the area outside the hull of the construction vessel 100.

[0041] In one embodiment of the present invention, the rope winding and unwinding mechanism 300 is a winch mechanism.

[0042] In one embodiment of the present invention, one end of the hoisting rope 500 is connected to the winch mechanism, and the other end of the hoisting rope 500 can move sequentially through the guide pulley 420 and the marine equipment 600, and is detachably connected to the hook 240.

[0043] Specifically, such as Figures 1 to 4As shown, the main lifting mechanism 200 is the main lifting force output component for the lifting of marine equipment 600. The main lifting mechanism 200 is integrally installed on the deck of the construction vessel 100, and its lifting operation range is limited to the working area of ​​the construction vessel. The working area of ​​the construction vessel 100 includes, but is not limited to, the deck working area, and may also include the ship's side working area, the forecastle and stern deck working area, the overboard extension platform working area, the side lifting point working area, the superstructure surrounding working area, the open-air operating area, and the cross-ship docking working area, among other legally permitted ship working areas. The main lifting mechanism 200 includes a rotating base 210, a base boom 220, a main boom 230, and a hook 240. The rotating base 210 is installed on the deck of the construction vessel 100 and can rotate 360° around its vertical central axis. Its rotation angle can be precisely controlled by hydraulic or electric drive, providing a basis for adjusting the horizontal position of the base boom 220 and the main boom 230. One end of the base boom section 220 is connected to the rotating end of the rotating base 210. One end of the main boom section 230 is rotatably connected to the other end of the base boom section 220 via a flip hinge. The flip angle between the two can be adjusted by a hydraulic push rod or a telescopic cylinder to realize the lifting and lowering action of the main boom section 230, thereby driving the hook 240 on it to complete the lifting and hovering height adjustment of the equipment. The hook 240 is a detachable connection end of the lifting rope 500. For example, the hook 240 can adopt a high-strength metal hook structure with a safety clip. The safety clip can effectively prevent the lifting rope 500 from falling off during operation, and the overall working trajectory of the hook 240 is always within the working area of ​​the construction vessel 100, providing convenience for subsequent personnel to unhook within the working area of ​​the construction vessel 100.

[0044] The guide support mechanism 400, which works in conjunction with the main lifting mechanism 200, is used to change the force transmission direction of the lifting rope 500, enabling precise lowering of the marine equipment 600 to the target position on the seabed outside the hull of the construction vessel 100. It includes a support arm 410, a guide pulley 420, and a tilting drive device 430. One end of the support arm 410 is rotatably connected to the deck of the construction vessel 100 via a rotating hinge, with its rotation axis parallel to the deck plane of the construction vessel 100. The guide pulley 420 is fixedly connected to the other end of the support arm 410 away from the rotating hinge via a pulley bracket. The pulley groove is adapted to the diameter of the lifting rope 500, effectively preventing the lifting rope 500 from derailing during retraction and force transmission. Furthermore, the guide pulley 420 adopts a rolling bearing structure, which significantly reduces the frictional resistance between the lifting rope 500 and the pulley, reducing rope wear and extending the rope's service life. One end of the tilting drive device 430 is fixedly connected to the deck or side of the construction vessel 100, and the other end is connected to the support arm 410. It can be a hydraulic cylinder, an electric push rod or a winch traction structure to drive the support arm 410 to tilt around the pivot hinge, thereby driving the guide pulley 420 to flexibly switch between the working area of ​​the construction vessel 100 and the area outside the ship's side.

[0045] In one embodiment of the present invention, the rope retrieval mechanism 300 is a winch mechanism, which is fixedly installed on the deck of the construction vessel 100 and provides power for the retrieval and release of the hoisting rope 500.

[0046] The 500 lifting rope, as the force transmission carrier, can adopt a high-strength steel wire rope structure. Its tensile strength is suitable for the lifting load requirements of small equipment in shallow seas, and the surface of the rope is treated with anti-corrosion and wear-resistant treatment, making it suitable for the harsh environment of marine operations. One end of the hoisting rope 500 is fixedly connected to the drum of the winch mechanism, and the connection point is reinforced to prevent the rope from detaching from the drum during the winding and unwinding process. The other end of the hoisting rope 500 can pass sequentially through the guide pulley 420 of the guide support mechanism 400 and the lifting ring of the marine equipment 600, and then be detachably connected to the hook ring 240 of the main hoisting mechanism 200. Specifically, the detachable connection can be achieved through a shackle, rope clamp, or flexible lifting ring. After connection, a closed force ring is formed from the winch mechanism, the guide pulley 420, the marine equipment 600 to the hook ring 240. This closed force ring provides the mechanical basis for the coordinated operation of the main hoisting mechanism 200 and the winch mechanism, so that the main hoisting force of the main hoisting mechanism 200 can be effectively transmitted to the marine equipment 600 through the hoisting rope 500. At the same time, the winch mechanism can precisely control the lowering speed and position of the equipment by winding and unwinding the rope.

[0047] During actual operation, the winch mechanism winds up or releases the lifting rope 500, adjusts the lifting rope 500 to the appropriate length, and then allows the lifting rope 500 to pass sequentially through the guide pulley 420 and the lifting ring of the marine equipment 600 before being detachably connected to the hook 240 of the main lifting mechanism 200, forming a closed force ring. The tilting drive device 430 of the guide support mechanism 400 drives the support arm 410 to tilt outwards from the ship's side, causing the guide pulley 420 to be in a preset guide position outside the ship's side. The main lifting mechanism 200, through the rotation of the rotating base 210 and the adjustment of the angle between the base boom section 220 and the main lifting boom section 230, drives the hook 240 to be adjusted to the appropriate connection position within the working area of ​​the construction vessel 100. Subsequently, the main lifting mechanism 200 provides a stable main lifting force for the lifting equipment, through the adjustment of the angle between the rotating base 210 and the boom section. With the guidance support mechanism 400, the equipment is adjusted to be directly above the target position on the seabed. At this time, the main lifting mechanism 200 remains in a fixed position, and the winch mechanism releases the lifting rope 500 at a uniform speed, so that the equipment is lowered vertically to the seabed. After the equipment is stably seated on the bottom, the lifting rope 500 loses its tension and becomes slack. The workers directly disconnect the lifting rope 500 from the hook 240 in the working area of ​​the construction vessel 100. Then, the winch mechanism starts to wind up the lifting rope 500, so that the lifting rope 500 is detached from the marine equipment 600 and the retrieval is completed. The tilting drive device 430 drives the support arm 410 to drive the guide pulley 420 to fold back to the working area of ​​the construction vessel 100. The main lifting mechanism 200 is adjusted and returned to the preset position on the deck of the construction vessel by rotating the base 210 and adjusting the arm section, thus completing the entire lifting operation.

[0048] A second aspect of the present invention provides a method for lowering marine equipment based on the above-described marine equipment lowering system, comprising the following steps: within the working area of ​​the construction vessel 100, connecting the hoisting rope 500 with the rope reeling mechanism 300, the guide support mechanism 400, the marine equipment 600, and the main hoisting mechanism 200; driving the guide support mechanism 400 to extend to the area outside the hull of the construction vessel 100 and adjusting the main hoisting mechanism 200 to move the marine equipment 600 above the target lowering position; the rope reeling mechanism 300 releasing the hoisting rope 500 to lower the marine equipment 600 to the target seabed position; within the working area of ​​the construction vessel 100, releasing the hoisting rope 500 on the main hoisting mechanism 200; and the rope reeling mechanism 300 winding up the hoisting rope 500.

[0049] In one embodiment of the present invention, within the working area of ​​the construction vessel 100, the steps of connecting the hoisting rope 500 with the rope winding and unwinding mechanism 300, the guide support mechanism 400, the marine equipment 600, and the main hoisting mechanism 200 specifically include: fixing one end of the hoisting rope 500 to the drum of the rope winding and unwinding mechanism 300; operating the rope winding and unwinding mechanism 300 to wind up the hoisting rope 500 to adjust the hoisting rope 500 to a length suitable for the operation; and sequentially moving the other end of the hoisting rope 500 through the guide pulley 420 of the guide support mechanism 400 and the lifting ring of the marine equipment 600, and then detachably connecting it to the hook ring 240 of the main hoisting mechanism 200.

[0050] In one embodiment of the present invention, the step of extending the drive guide support mechanism 400 to the outer area of ​​the construction vessel 100 and adjusting the main crane mechanism 200 to move the marine equipment 600 above the target lowering position specifically includes: adjusting the rotation angle of the flip drive mechanism, the rotating base 210 and the included angle between the main crane boom section 230 and the base boom section 220 to move the marine equipment 600 above the target lowering position.

[0051] In one embodiment of the present invention, the step of the rope release mechanism 300 releasing the hoisting rope 500 to lower the marine equipment 600 to the target position on the seabed specifically includes: the winch mechanism releasing the hoisting rope 500 until the marine equipment 600 falls to the target position on the seabed and sits on the bottom, so that the hoisting rope 500 is in a slack state.

[0052] In one embodiment of the present invention, the step of the rope winding and unwinding mechanism 300 winding and hoisting rope 500 specifically includes: a winch mechanism winding and hoisting rope 500; a return guide support mechanism 400; and a main hoisting mechanism 200.

[0053] Specifically, the method for lowering the marine equipment 600 relies on the coordinated operation of the main crane mechanism 200, the guide support mechanism 400, the rope retrieval mechanism 300, and the hoisting rope 500. The core operations such as connection and unhooking are completed entirely within the working area of ​​the construction vessel 100, without the need for underwater personnel or special equipment. This effectively enables the safe, efficient, and low-cost lowering of small marine equipment 600 in shallow waters. The specific implementation steps of this lowering method are explained in detail below.

[0054] Within the operating area of ​​the construction vessel 100, the first step is to connect the lifting rope 500 to the various mechanisms and marine equipment 600. Specifically: first, fix one end of the lifting rope 500 to the drum of the rope winding mechanism 300; then, start the rope winding mechanism 300, and adjust the length of the lifting rope 500 through the winding action of the drum, adjusting it to a length suitable for this operation to ensure that the other end of the lifting rope 500 can smoothly complete subsequent threading and connection operations; after the length adjustment is completed, as... Figure 1 As shown, the free end of the hoisting rope 500 is sequentially passed through the guide pulley 420 of the guide support mechanism 400 and the lifting ring of the marine equipment 600, and finally detachably connected to the hook 240 of the main hoisting mechanism 200. The detachable connection can employ structures such as shackles, rope clamps, or flexible lifting ring attachments. After connection, a closed force loop is formed from the rope release and take-up mechanism 300, the guide support mechanism 400, the marine equipment 600, to the main hoisting mechanism 200. This connection process is completed entirely within the operating area of ​​the construction vessel 100, making it convenient and highly safe to operate.

[0055] After completing all connections, adjust the position of the marine equipment 600, such as... Figure 2 As shown, the drive guide support mechanism 400 flips and extends to the outer area of ​​the construction vessel 100 and adjusts the main crane mechanism 200 so that the marine equipment 600 is moved directly above the target lowering position. Specifically: First, the rotating drive mechanism drives the support arm 410 to rotate the guide pulley 420 towards the area outside the hull of the construction vessel 100 and adjust it to a suitable working posture, so that the guide pulley 420 is in the target guidance position outside the hull, providing directional guidance for the force transmission of the hoisting rope 500 and the lowering of the equipment; Simultaneously, the rotation angle of the rotating base 210 of the main hoisting mechanism 200 around its vertical central axis and the rotation angle between the main hoisting boom section 230 and the base boom section 220 are adjusted. The horizontal orientation of the marine equipment 600 is adjusted by rotating the rotating base 210, and the lifting height of the marine equipment 600 is adjusted by adjusting the angle between the main hoisting boom section 230 and the base boom section 220. Relying on the coordinated cooperation of the guide support mechanism 400 and the main hoisting mechanism 200, the marine equipment 600 is gradually and smoothly moved to directly above the seabed target lowering position. During this process, the main hoisting mechanism 200 always operates within the working area, and the working trajectory of its hook 240 does not exceed the working area. The rope winding and unwinding mechanism 300 remains in a passive following state, maintaining the reasonable tension of the hoisting rope 500 and preventing the equipment from swaying.

[0056] Once the marine equipment 600 is positioned directly above the seabed target's lowering location, release the hoisting rope 500 and lower it to the seabed. Specifically: [e.g., ...] Figure 3As shown, keeping the main lifting mechanism 200 in a fixed position, the winch mechanism is activated, and the lifting rope 500 is released at a uniform speed through the forward rotation of the drum. Under the combined action of the traction of the lifting rope 500 and gravity, the marine equipment 600 is lowered vertically to the seabed. During this process, the winch mechanism can adjust the release speed of the lifting rope 500 according to the shallow water depth and current conditions to ensure the stability of the equipment descent and avoid collisions with the hull or underwater obstacles. The lifting rope 500 is continuously released until the marine equipment 600 reaches the target position on the seabed and settles stably. At this point, the weight of the marine equipment 600 is supported by the seabed, the lifting rope 500 loses its tension and becomes slack, the winch mechanism stops releasing, and the equipment descent operation is completed.

[0057] After confirming that the marine equipment 600 is stably seated on the seabed and that the lifting rope 500 is in a slack state, the unhooking operation is carried out. Specifically, within the working area of ​​the construction vessel 100, the staff directly unlocks the detachable connection structure between the lifting rope 500 and the hook 240 of the main lifting mechanism 200, such as removing the shackle pin, opening the safety clip of the hook 240, and releasing the rope clamp. This operation does not require underwater work by divers or the use of expensive remotely operated underwater robots, and is not limited by environmental factors such as sea conditions and visibility, resulting in high unhooking efficiency and success rate.

[0058] After unhooking, the final step is to reel in 500 coils of the hoisting rope and return the mechanism to its original position. Specifically, as follows... Figure 4 As shown, the winch mechanism is first started, and the hoisting rope 500 is wound up by the reverse rotation of the drum. Under the winding tension of the winch mechanism, the hoisting rope 500 naturally disengages from the lifting ring of the marine equipment 600. Then, the entire hoisting rope 500 is retrieved in the reverse direction along the lowering path. The hoisting rope 500 can be completely wound onto the drum of the winch mechanism according to the operational requirements. Alternatively, during continuous batch hoisting operations, the hoisting rope 500 can be temporarily wound up to the vicinity of the guide pulley 420 of the guide support mechanism 400 to reduce the rope threading steps in subsequent hoisting operations. While the hoisting rope 500 is being wound up or after it has been wound up, the reverse drive mechanism of the control guide support mechanism 400 is reversed, driving the support arm 410 to rotate the guide pulley 420 from the area outside the ship's side back to the working area of ​​the construction vessel 100. At the same time, the angle between the rotating base 210 of the main hoisting mechanism 200, the main hoisting boom section 230 and the foundation boom section 220 is adjusted so that the main hoisting mechanism 200 is returned to the preset initial position in the working area, completing the lowering operation of the entire set of marine equipment 600.

[0059] The method for lowering marine equipment 600 of this invention, relying on the aforementioned marine equipment lowering system, confines all core operations such as connection, hoisting, positioning, unhooking, and rope retrieval to the working area of ​​the construction vessel 100, effectively avoiding personal safety risks during underwater operations and eliminating reliance on expensive specialized equipment. Each step is simple and seamlessly connected, allowing ordinary operators to work independently after simple training, significantly improving the efficiency of lowering and hoisting small equipment in shallow waters and shortening the operation cycle. Furthermore, it eliminates the need for additional release devices, hydraulic drives, or other specialized unhooking devices, and avoids cutting the hoisting rope 500. The hoisting rope 500 and all mechanical components are reusable, requiring only regular maintenance, significantly reducing equipment investment, labor costs, and consumable costs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A marine equipment lowering system, characterized in that, include: Construction vessel; The main lifting mechanism is mounted on the construction vessel, and the lifting operation area of ​​the main lifting mechanism is located within the operation area of ​​the construction vessel. A rope retrieval mechanism is installed on the construction vessel; A guiding support mechanism is installed on the construction vessel and can extend to the outer side of the construction vessel to coordinate with the main crane mechanism to adjust the marine equipment to a position above the seabed target. The hoisting rope has one end connected to the rope deployment mechanism, and the other end can move sequentially through the guide support mechanism and marine equipment and connect to the main hoisting mechanism. The connection and unlocking operation of the hoisting rope and the main hoisting mechanism can be completed within the working area of ​​the construction vessel.

2. The marine equipment lowering system according to claim 1, characterized in that, The other end of the hoisting rope can be detachably connected to the main hoisting mechanism.

3. The marine equipment lowering system according to claim 1, characterized in that, The main hoisting mechanism includes: A rotating base is provided on the deck of the construction vessel and is capable of rotating about its vertical central axis. A base arm section, one end of which is connected to the rotating base; The main boom section, one end of which is rotatably connected to the other end of the base boom section; A hook and loop is attached to the other end of the main boom section, and the lifting operation area of ​​the hook and loop is located within the operating area of ​​the construction vessel.

4. The marine equipment lowering system according to claim 3, characterized in that, The guiding support mechanism includes: A support arm, which is rotatably connected to the construction vessel; A guide pulley is connected to the support arm; A tilting drive device, which is connected to the support arm, is used to drive the support arm to rotate the guide pulley between the working area of ​​the construction vessel and the outer side area of ​​the construction vessel.

5. The marine equipment lowering system according to claim 4, characterized in that, The rope deployment and retraction mechanism is a winch mechanism.

6. The marine equipment lowering system according to claim 5, characterized in that, One end of the hoisting rope is connected to the winch mechanism, and the other end of the hoisting rope can move sequentially through the guide pulley and the marine equipment, and is detachably connected to the hook and swivel.

7. A method for lowering marine equipment based on the marine equipment lowering system according to any one of claims 1 to 6, characterized in that, Includes the following steps: Within the operating area of ​​the construction vessel, the hoisting ropes are connected to the rope deployment and retrieval mechanism, the guide support mechanism, marine equipment, and the main hoisting mechanism; The drive guide support mechanism extends to the area outside the hull of the construction vessel and adjusts the main crane mechanism to move the marine equipment above the target lowering position; The rope retrieval mechanism releases the hoisting rope to lower the marine equipment to the target location on the seabed. Within the operating area of ​​the construction vessel, release the lifting ropes from the main crane mechanism; The rope winding and unwinding mechanism winds up and unwinds the hoisting rope.

8. The method for delegating according to claim 7, characterized in that, The steps of connecting the hoisting ropes to the rope retrieval mechanism, guide support mechanism, marine equipment, and main crane mechanism within the operating area of ​​the construction vessel specifically include: One end of the hoisting rope is fixedly connected to the drum of the rope winding mechanism. The rope winding mechanism is then operated to wind up the hoisting rope to adjust it to the appropriate length for the operation. The other end of the hoisting rope is sequentially moved through the guide pulley of the guide support mechanism and the lifting ring of the marine equipment, and then detachably connected to the hook of the main hoisting mechanism.

9. The method for delegating according to claim 7, characterized in that, The steps of extending the drive and guidance support mechanism to the outer hull area of ​​the construction vessel and adjusting the main crane mechanism to move the marine equipment above the target lowering position specifically include: Adjust the tilting drive mechanism, the rotation angle of the rotating base, and the angle between the main boom section and the base boom section to move the marine equipment above the target lowering position.

10. The method for delegating according to claim 7, characterized in that, The step of releasing the hoisting rope by the rope deployment mechanism to lower the marine equipment to the target location on the seabed specifically includes: The winch mechanism releases the hoisting ropes until the marine equipment falls to the target position on the seabed and sits on the bottom, thus slackening the hoisting ropes.

11. The method for delegating according to any one of claims 7 to 10, characterized in that, The steps of the rope winding and unwinding mechanism for winding and unwinding the hoisting rope specifically include: The winch mechanism winds up the hoisting rope; Returning guide support mechanism and main hoisting mechanism.

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