Marine fishery culture factory ship water taking cantilever and method of use

Abstract

The present application relates to a kind of marine fishery culture factory ship water taking cantilever and method for using, solve the problem of unstable positioning of cantilever in the process of deep water taking, poor operation safety in the prior art;By setting anti-scraping roller and electromagnetic chuck, ensure that water taking cantilever moves smoothly during lowering, avoid collision or friction with the hull plate;After cantilever reaches the target depth of water taking, electromagnetic chuck is powered to adsorb, fix cantilever and prevent it from swinging, guarantee the stability of water taking operation.The reset device between anti-scraping roller and water taking cantilever and moving pair structure, so that cantilever can effectively overcome vibration and keep initial position.Water taking cantilever is equipped with pump and bearing supported water taking pipe, can rotate with cantilever, ensure the smoothness of water taking process.Through controlling the adsorption timing of electromagnetic chuck and the flexible adjustment of moving pair, the safe and efficient operation of cantilever in complex sea conditions is realized, and the water taking efficiency and operation reliability of marine fishery culture are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of deep water intake for marine fishery aquaculture, and in particular relates to a water intake cantilever for a marine fishery aquaculture vessel and a method for using the cantilever. Background Art

[0002] Marine aquaculture vessels cultivating high-value commercial fish species require deep, cool, clean seawater to reduce disease rates and improve fish quality. Currently, large-scale marine aquaculture vessels in operation in China are experimenting with various deep-water water intake methods. Among them, the use of rigid water intake booms allows for mechanized operation, reduces workload, ensures safe and reliable operation, and increases efficiency. When lowering the water intake boom underwater for water intake operations, it must be effectively secured to ensure safe and reliable operation. Summary of the Invention

[0003] The present invention proposes a water intake cantilever for a fishery aquaculture vessel and a method of using the same, which has a simple principle, is easy to implement, safe and reliable, and helps to improve the production efficiency of the aquaculture vessel; the present invention does not require major modifications to the aquaculture vessel, and is particularly advantageous for application and implementation on aquaculture vessels that are nearing completion or have been put into use.

[0004] The purpose of the present invention is to provide a water intake cantilever for a marine fishery aquaculture vessel, wherein the water intake cantilever is a truss structure and is provided with an anti-friction roller and an electromagnetic sucker;

[0005] The water intake cantilever forms a rolling pair between the anti-friction roller and the hull side outer plate. The anti-friction roller is used to resist the hull side outer plate. The anti-friction roller is used to prevent the water intake cantilever or electromagnetic suction cup from colliding or rubbing with the hull outer plate when lowering or lifting;

[0006] The electromagnetic suction cup is used to suck the side outer plate of the hull to prevent the water intake cantilever from swinging when the water intake cantilever reaches the target water intake depth;

[0007] The anti-friction roller and electromagnetic suction cup are arranged on the side of the water intake cantilever close to the hull outer plate;

[0008] To address the problems of easy swinging, rubbing against the hull, and unreliable fixation of the water intake boom during deep-water intake operations on marine fishery aquaculture vessels, a truss-type rigid water intake boom is adopted. A combination of anti-friction rollers and electromagnetic suction cups is installed on the side close to the hull outer plate. This overcomes the defects of traditional rigid booms that cause structural wear or interference with the hull during lowering or lifting. It also avoids cantilever offset and reduced water intake accuracy caused by waves or operational vibrations, achieving a technical effect of structural stability, high safety, simple maintenance, and applicability to existing work vessels.

[0009] The present application forms a rolling pair by providing anti-friction rollers to guide the water intake boom to be lowered smoothly, avoiding direct contact and friction with the side outer plate; when the boom reaches the predetermined water intake depth, the electromagnetic suction cup adsorbs the hull outer plate, firmly positioning the boom and effectively limiting lateral swing; the height difference between the electromagnetic suction cup and the roller ensures that the suction cup maintains a gap with the hull in the non-operating state, avoiding ineffective wear; a reset device with a spring is used to enable the water intake boom to produce relative displacement under pressure, while also having an anti-vibration function, thereby improving overall operational reliability; the lifting device is combined with the retractable rope to realize the mechanized lifting and lowering operation of the boom, reducing labor intensity and improving operational efficiency;

[0010] This technical solution takes into account the adaptability of new equipment and compatibility with existing aquaculture vessels. It can be installed and used without large-scale modification and has significant promotion and application value.

[0011] A technical solution provided by this application also has the following technical features:

[0012] Preferably, in one embodiment of the present application, the height of the electromagnetic suction cup is lower than the anti-friction roller, so that a gap is maintained between the electromagnetic suction cup and the side outer plate of the hull; so that the electromagnetic suction cup does not contact and rub against the hull when the water intake cantilever is lowered or raised.

[0013] Preferably, in one embodiment of the present application, a raised or recessed structure is provided on the working surface of the electromagnetic suction cup, and a locking track is provided on the matching hull. The locking track is provided on the side of the hull along the moving trajectory of the electromagnetic suction cup, and is fixed to the hull deck through the upper end; the raised or recessed structure on the working surface of the electromagnetic suction cup is matched with the raised or recessed structure of the locking track to form a lock, thereby providing reliable stopping force for the ultra-deep water intake cantilever, and the target water intake depth of the ultra-deep water intake cantilever is greater than 30 meters.

[0014] Preferably, in one embodiment of the present application, the cable of the electromagnetic suction cup is laid in a cable pipe on the water intake cantilever.

[0015] Preferably, in one embodiment of the present application, the water intake cantilever is rigid.

[0016] Preferably, in one embodiment of the present application, a reset device and a moving pair are provided between the anti-friction roller and the water intake cantilever.

[0017] Preferably, in one embodiment of the present application, a reset device is provided on the base of the anti-friction roller, and the reset device includes a spring.

[0018] Preferably, in one embodiment of the present application, a pump is provided at one end of the water intake cantilever for entering seawater, the pump is connected to the water intake pipe through a pipeline, the output end of the water intake pipe is connected to the breeding tank, and a bearing is provided on the water intake pipe for supporting the water intake pipe to rotate with the water intake cantilever.

[0019] Preferably, in one embodiment of the present application, the water intake cantilever is equipped with a retractable rope and a lifting device, and the lifting device drives the water intake cantilever to be lifted or lowered through the retractable rope.

[0020] Preferably, in one embodiment of the present application, a wave-breaking structure is provided at the water inlet section and above the water inlet section of the water intake cantilever. The wave-breaking structure includes a protrusion and a diversion curved surface and is arranged around the water intake cantilever to reduce the impact of floating waves on the water intake cantilever and the impact of undercurrents under the sea surface. This structure reduces the force on the water intake cantilever and the load required for the electromagnetic suction cup, thereby reducing its design load by 30%.

[0021] Preferably, in one embodiment of the present application, a method for using a water intake cantilever of a marine fishery aquaculture vessel is provided. When the water intake cantilever is lowered, the water intake cantilever moves downward under the guidance of an anti-friction roller, and the electromagnetic suction cup does not move, maintaining a certain gap with the outer plate of the hull; when the water intake cantilever reaches the target water intake depth, the electromagnetic suction cup performs an adsorption action, and an electromagnetic suction force is generated between the electromagnetic suction cup and the outer plate of the hull side;

[0022] A reset device and a moving pair are provided between the anti-friction roller and the water intake cantilever, so that when the anti-friction roller is pressed by the water intake cantilever, the water intake cantilever overcomes the resistance of the reset device and moves relative to the anti-friction roller; when the anti-friction roller is not pressed by the water intake cantilever, the water intake cantilever and the anti-friction roller remain in the initial position, and the reset device is used to resist the vibration of the water intake cantilever.

[0023] Preferably, in one embodiment of the present application, the electromagnetic suction cup performs an adsorption action, the electromagnetic suction cup drives the water intake cantilever to press the anti-friction roller, the gap between the electromagnetic suction cup and the hull outer plate is reduced to contact the hull outer plate, the water intake cantilever is fixed, and the water intake operation is performed at the target water intake depth;

[0024] When retrieving the water intake cantilever, the electromagnetic suction cup is powered off, the electromagnetic suction force disappears, the water intake cantilever is reset under the drive of the spring, the gap between the electromagnetic suction cup and the hull outer plate is restored, and the water intake cantilever moves to the initial position under the guidance of the anti-friction roller.

[0025] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention.

[0026] 1. By providing anti-friction rollers, this application overcomes the defect of direct collision or friction between the water intake boom and the hull outer plate during the lifting process, thereby achieving the technical effect of protecting the hull structure and extending the service life of the equipment;

[0027] 2. This application overcomes the defect of traditional cantilevers that are prone to lateral swing due to waves or hull shaking by providing an electromagnetic suction cup and automatically adsorbing and fixing the cantilever when it reaches the water intake depth, thus achieving a stable and reliable water intake operation.

[0028] 3. This application sets a height difference between the electromagnetic suction cup and the anti-friction roller to maintain a gap in the non-operating state, overcoming the problem of the electromagnetic suction cup continuously contacting and rubbing the hull during the lifting process, thereby achieving the technical effect of reducing structural wear and improving reliability.

[0029] 4. This application overcomes the problem of the traditional rigid connection lacking flexible buffering by providing a reset device between the anti-friction roller and the water intake cantilever, thereby achieving the technical effect of enhancing the anti-vibration ability and the self-reset ability of the device;

[0030] 5. This application realizes the mechanized lifting and lowering of the water intake boom by setting up a retractable rope and a lifting device, overcoming the defects of high intensity and low efficiency of manual operation, and achieving the technical effect of improving the degree of automation and safety of the operation;

[0031] The structural design of this application is highly adaptable and does not require major modifications to existing aquaculture vessels. It overcomes the limitations of the narrow applicability of traditional fixed structures and achieves a technical effect that is easy to promote and apply and highly economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0033] Figure 1 A side view of a hull showing a water intake boom according to an embodiment of the present invention, wherein the water intake boom is in a deck storage position;

[0034] Figure 2 A side view of a hull showing a water intake boom according to an embodiment of the present invention, wherein the water intake boom is in a partially lowered position;

[0035] Figure 3 A side view of a hull showing a water intake boom according to an embodiment of the present invention, wherein the water intake boom is in a fully lowered position;

[0036] Figure 4 A top view of a hull with a water intake cantilever according to an embodiment of the present invention;

[0037] Figure 5 An enlarged view A of the anti-friction roller and electromagnetic chuck arrangement according to an embodiment of the present invention;

[0038] Components in the picture:

[0039] 1. Water intake cantilever

[0040] 2. Anti-scratch roller

[0041] 3. Electromagnetic chuck

[0042] 4. Spring

[0043] 5. Roller track

[0044] 6. Retractable rope

[0045] 7. Hull side

[0046] 8. Water pipe

[0047] 9. Bearings

[0048] 10. Hull side plating

[0049] 11. Hull. DETAILED DESCRIPTION

[0050] The following further describes the specific embodiments of the present application in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present application and are not intended to limit the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0053] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0054] like Figures 1-5 A water intake cantilever for a marine fishery aquaculture vessel, wherein the water intake cantilever 1 is a truss structure and is provided with an anti-friction roller 2 and an electromagnetic suction cup 3;

[0055] The water intake boom 1 forms a rolling pair between the anti-friction roller 2 and the hull side outer plate 10. The anti-friction roller 2 is used to abut against the hull side outer plate 10. The anti-friction roller 2 is used to prevent the water intake boom 1 or the electromagnetic suction cup 3 from colliding or rubbing with the hull outer plate when lowering or lifting;

[0056] The electromagnetic sucker 3 is used to suck the hull side outer plate 10 to prevent the water intake cantilever 1 from swinging when the water intake cantilever 1 reaches the target water intake depth;

[0057] The anti-friction roller 2 and the electromagnetic suction cup 3 are arranged on the side of the water intake cantilever 1 close to the outer plate of the hull;

[0058] When implementing this application, the implementation points are as follows:

[0059] Structural form: The water intake boom 1 adopts a truss-type rigid structure with good strength and rigidity, suitable for stable operation in complex offshore environments;

[0060] Setting of anti-friction roller 2: An anti-friction roller 2 is set on the side of the water intake boom 1 close to the hull side outer plate 10 to form a rolling pair, which is used to contact and guide the hull during the boom lifting process to avoid direct collision or friction;

[0061] Configuration of the electromagnetic suction cup 3: The electromagnetic suction cup 3 is set on the same side. After the cantilever is lowered to the target depth, the suction function is activated to fix the cantilever to the hull side plate 10 to prevent the cantilever from swinging due to waves or vibrations;

[0062] Collaborative working mechanism: The anti-friction roller 2 and the electromagnetic suction cup 3 work together to provide guidance and protection and positioning during the boom lifting process, improving the stability and safety of water extraction operations.

[0063] All of the above components are arranged on the side of the water intake cantilever 1 close to the outer plate of the hull. The structure is compact, easy to install and maintain, and maximizes the use of the hull space. The structure of the present application has good protection and positioning stability, which facilitates the automation and high-reliability operation of deep seawater water intake operations.

[0064] The working principle of this embodiment is as follows:

[0065] During deep water intake operations, the water intake boom 1 is gradually lowered along the side outer plate 10 of the hull under the drive of the lifting device and the retracting and releasing rope. During the lowering process, the anti-scratch roller 2 provided on the side of the water intake boom 1 close to the hull contacts the side outer plate 10, forming a rolling auxiliary structure, guiding the boom to move smoothly, avoiding direct collision or scraping with the hull, and playing a protective and buffering role.

[0066] When the water intake boom 1 reaches the predetermined water intake depth, the electromagnetic suction cup 3 starts to be energized and adsorbed on the hull side plate 10. The electromagnetic suction force is used to position and fix the boom to prevent it from swinging or deflecting due to factors such as sea fluctuations and hull vibrations, thereby ensuring the stability and safety of the water intake operation.

[0067] After the water intake operation is completed, the electromagnetic suction cup 3 is powered off, the suction force disappears, and the cantilever automatically rebounds under the action of a reset device, such as a spring, to restore the gap with the hull; then, the cantilever is lifted by the retracting cable, and the anti-friction roller 2 guides it upward again, and finally the water intake cantilever 1 is retracted to the initial position, completing the entire operation cycle;

[0068] The automatic guidance, collision prevention, reliable positioning and self-reset of the water intake cantilever during the lifting process are realized, ensuring the efficient and safe operation of deep water intake.

[0069] Specifically, in one embodiment of the present application, the height of the electromagnetic suction cup 3 is lower than the anti-friction roller 2, so that a gap is maintained between the electromagnetic suction cup 3 and the side outer plate 10 of the hull; when the water intake cantilever 1 is lowered or lifted, the electromagnetic suction cup 3 does not contact or rub with the hull; the cable of the electromagnetic suction cup 3 is laid in the cable pipe on the water intake cantilever 1; the water intake cantilever 1 is rigid; a reset device and a moving pair are provided between the anti-friction roller 2 and the water intake cantilever 1; a reset device is provided on the base of the anti-friction roller 2, and the reset device includes a spring 4; a pump is provided at one end of the water intake cantilever 1 for entering seawater, and the pump is connected to the water intake pipe 8 through a pipeline, and the output end of the water intake pipe 8 is connected to the breeding tank, and a bearing 9 is provided on the water intake pipe 8 for supporting the water intake pipe 8 to rotate with the water intake cantilever 1; the water intake cantilever 1 is equipped with a retractable rope 6 and a lifting device, and the lifting device drives the water intake cantilever 1 to be lifted or lowered through the retractable rope 6;

[0070] The anti-friction roller and reset device adopt a combination of sliding fit and pre-loaded spring adjustment to adapt to different hull plate curvatures and structural deviations, ensuring that the roller always maintains flexible contact with the hull; the electromagnetic suction cup remains in a suspended state before power is turned on, and the control system accurately controls the adsorption timing. The adsorption action is only started after the cantilever is stable in place, avoiding accidental or premature adsorption that leads to uneven structural stress; waterproof sealing joints and anti-corrosion sheaths are used in the cable laying process to improve the weather resistance and safety of long-term operation at sea; synchronous control logic is used between the lifting device and the retracting and releasing rope, and the displacement sensor is used to realize accurate monitoring and feedback of the cantilever lowering position, ensuring that the cantilever quickly enters a stable working state when it reaches the water intake depth, effectively improving the system's degree of automation and the continuity and safety of water intake operations.

[0071] Specifically, in one embodiment of the present application, a method for using a water intake boom for a marine fishery aquaculture vessel is provided. When the water intake boom 1 is lowered, the water intake boom 1 moves downward under the guidance of an anti-friction roller 2, and the electromagnetic suction cup 3 does not move, maintaining a certain gap with the hull outer plate. When the water intake boom 1 reaches the target water intake depth, the electromagnetic suction cup 3 performs an adsorption action, generating an electromagnetic suction force between the electromagnetic suction cup 3 and the hull side outer plate 10.

[0072] A reset device and a moving pair are provided between the anti-friction roller 2 and the water intake cantilever 1. When the anti-friction roller 2 is pressed by the water intake cantilever 1, the water intake cantilever 1 overcomes the resistance of the reset device and moves relative to the anti-friction roller 2. When the anti-friction roller 2 is not pressed by the water intake cantilever 1, the water intake cantilever 1 and the anti-friction roller 2 remain in their initial positions. The reset device is used to resist the vibration of the water intake cantilever 1.

[0073] The electromagnetic suction cup 3 performs the adsorption action, and the electromagnetic suction cup 3 drives the water intake cantilever 1 to press the anti-friction roller 2. The gap between the electromagnetic suction cup 3 and the hull outer plate is reduced to contact the hull outer plate, and the water intake cantilever 1 is fixed, and the water intake operation is performed at the target water intake depth;

[0074] When the water intake cantilever 1 is recovered, the electromagnetic suction cup 3 is powered off, the electromagnetic suction force disappears, the water intake cantilever 1 is reset under the drive of the spring 4, the gap between the electromagnetic suction cup 3 and the hull plate is restored, and the water intake cantilever 1 moves to the initial position under the guidance of the anti-friction roller 2;

[0075] In order to solve the problems of easy swinging of the cantilever, inaccurate positioning and poor operation safety in the deep water intake process of existing marine fishery aquaculture vessels, the technical solution of this application adopts anti-friction roller guidance combined with electromagnetic suction cup adsorption and fixation, and realizes flexible limitation and stable fixation of the cantilever through the linkage structure of the reset device and the moving pair, overcoming the defects of the traditional rigid positioning structure that is easily damaged by the interference of sea conditions and the adsorption positioning cannot be buffered, and achieves the technical effects of smooth operation of the water intake cantilever lowering process, reliable water intake depth positioning, effective vibration suppression and high safety of the operation process.

[0076] Specifically, in one embodiment of the present application, a raised or recessed structure is provided on the working surface of the electromagnetic suction cup, and a locking track is provided on the matching hull. The locking track is provided on the side of the hull along the moving trajectory of the electromagnetic suction cup, and is fixed to the hull deck through the upper end; the raised or recessed structure on the working surface of the electromagnetic suction cup is matched with the raised or recessed structure of the locking track to form a lock, thereby providing a reliable stopping force for the ultra-deep water intake cantilever, and the target water intake depth of the ultra-deep water intake cantilever is greater than 30 meters; the matching structure of the electromagnetic suction cup and the locking track is distributed in the form of staggered teeth, that is, one tooth can be misaligned to fit together.

[0077] Specifically, in one embodiment of the present application, Figures 1-5 The technical solution of the present application involves a water intake cantilever 1, an anti-friction roller 2, an electromagnetic suction cup 3, a spring 4, a roller track 5, a retracting and releasing rope 6, a hull side 7, a water intake pipe 8, a bearing 9, a hull side outer plate 10, and a hull 11; the anti-friction roller 2 and the electromagnetic suction cup 3 are installed on the truss-type water intake cantilever 1; the anti-friction roller 2 is used to prevent the water intake cantilever 1 or the electromagnetic suction cup 3 from colliding or rubbing with the hull outer plate when lowering or lifting; the electromagnetic suction cup 3 is used to suck the hull outer plate when the water intake cantilever 1 reaches the water intake depth to prevent the anti-friction roller 2 from swinging;

[0078] The anti-friction roller 2 and the electromagnetic suction cup 3 are installed adjacent to each other on the truss structure on the side of the water intake boom 1 close to the hull outer plate; a spring 4 is provided on the base of the anti-friction roller 2; the electromagnetic suction cup 3 is installed at a lower height than the anti-friction roller 2 to maintain a certain gap between the electromagnetic suction cup 3 and the hull outer plate, so that the electromagnetic suction cup 3 does not come into contact with or rub against the hull when the water intake boom 1 is lowered or raised; the cable of the electromagnetic suction cup 3 is laid in a cable pipe on the water intake boom;

[0079] When the water intake boom 1 is lowered, the lifting equipment on the work ship releases the retracting and releasing rope, and the water intake boom 1 moves downward under the guidance of the anti-friction roller 2. The electromagnetic suction cup 3 does not perform the adsorption action, that is, the electromagnetic suction cup 3 is not energized and maintains a certain gap with the hull outer plate; when the water intake boom 1 reaches the water intake depth, the electromagnetic suction cup 3 is energized to perform the adsorption action and generate electromagnetic suction between the hull outer plate, forcing the anti-friction roller 2 to retract, the gap between the electromagnetic suction cup and the hull outer plate is reduced and finally adsorbed to the hull outer plate, fixing the water intake boom 1 on the hull, and then starting the water intake operation; after the water intake operation is completed, when the water intake boom 1 is recovered, the electromagnetic suction cup 3 is de-energized, the electromagnetic suction disappears, and the anti-friction roller 2 returns to its original position under the action of the spring 4, the gap between the electromagnetic suction cup 3 and the hull outer plate is restored, the lifting equipment on the work ship recovers the retracting and releasing rope, and the water intake boom 1 moves upward under the guidance of the anti-friction roller 2 and is recovered to the deck storage position;

[0080] The present invention is suitable for aquaculture vessels using a water intake boom 1 to achieve deep water intake. The water intake boom 1 generally adopts a truss structure to combine a water intake pipe, a cable pipe, a water intake port or a water intake pump into a rigid arm frame. When in use, the water intake boom 1 is lowered underwater as a whole; the present invention is composed of an anti-friction roller 2 and an electromagnetic suction cup 3, which are installed on the side of the water intake boom 1 close to the hull; when the water intake boom 1 is lowered, the anti-friction roller 2 is used to prevent the electromagnetic suction cup 3 and the water intake boom 1 from contacting the hull outer plate. When the water intake cantilever 1 is below the water intake depth, the electromagnetic suction cup 3 is energized and adsorbed on the hull outer plate, so that the water intake cantilever 1 does not swing; after the water intake is completed, the electromagnetic suction cup 3 is de-energized and detached from the hull outer plate, and the water intake cantilever 1 is recovered under the guidance of the anti-friction roller 2; when the method proposed by the present invention is implemented, it is only necessary to install components on the water intake cantilever 1, without major modification of the aquaculture vessel, and it can be conveniently applied to both aquaculture vessels under construction and aquaculture vessels already in use;

[0081] The present invention has a compact structure, is simple to install, and is easy to use. When used on fishery breeding vessels, it can improve the safety and reliability of water intake operations. The present invention is suitable for deep water intake methods of breeding vessels using a rigid water intake cantilever 1. When in use, the present invention installs an electromagnetic suction cup 3 on the rigid water intake cantilever 1, and utilizes the electromagnetic adsorption principle to firmly adsorb the water intake cantilever 1 on the hull outer plate during water intake operations. The installation positions of the anti-friction roller 2 and the electromagnetic suction cup 3 on the water intake cantilever 1 should be appropriately selected so that within the entire walking range of the water intake cantilever 1, the anti-friction roller 2 and the electromagnetic suction cup 3 are both in the straight area of ​​the hull outer plate, ensuring that the anti-friction roller 2 and the hull outer plate are always in effective contact, and the electromagnetic suction cup 3 can be firmly adsorbed to the hull outer plate.

[0082] Specifically, in one embodiment of the present application, a submersible pump, a water intake pipe, a hull connecting pipe, a cable pipe and other components are installed in combination on the rigid water intake cantilever 1 structure. The water intake cantilever 1 is arranged along the length of the ship on both sides of the hull of the aquaculture vessel. The "L"-shaped connecting pipe on the upper part of the water intake cantilever 1 is connected to the water inlet pipe of the ship through a bearing. The water intake cantilever 1 can rotate around the bearing, and the water intake cantilever 1 is operated by the lifting equipment on the ship through the retractable rope.

[0083] Specifically, in one embodiment of the present application, the installation position and installation height of the anti-friction roller 2 and the electromagnetic suction cup 3 on the water intake boom 1 are appropriately designed according to the arrangement position of the water intake boom 1, so that the anti-friction roller 2 and the electromagnetic suction cup 3 are both located in the straight area of ​​the hull outer plating and effectively contact the hull outer plating;

[0084] When in use, the present invention installs an electromagnetic suction cup 3 on the rigid water intake cantilever 1. By utilizing the principle of electromagnetic adsorption, the water intake cantilever 1 is firmly adsorbed on the hull outer plate during water intake operation, thereby preventing the water intake cantilever 1 from swinging or deflecting due to external forces such as ocean currents and waves, which may cause damage to the water intake cantilever 1 in serious cases, and ensuring that the water intake port of the water intake cantilever 1 is always kept in a normal position.

[0085] The electromagnetic suction cup 3 and the anti-friction roller 2 cooperate with each other. When the water intake boom 1 moves, the electromagnetic suction cup 3 is not energized and maintains a gap with the hull outer plating. The water intake boom 1 moves smoothly on the hull outer plating under the guidance of the anti-friction roller 2. After the water intake boom 1 reaches the water intake position, the electromagnetic suction cup 3 is energized, generating electromagnetic attraction with the hull outer plating, forcing the anti-friction roller 2 to retract, so that the electromagnetic suction cup 3 contacts the hull outer plating and firmly adheres. The installation position and installation height of the anti-friction roller 2 and the electromagnetic suction cup 3 should be appropriately designed according to the layout of the water intake boom 1, so that the anti-friction roller 2 and the electromagnetic suction cup 3 are always in the straight area of ​​the hull outer plating and effectively contact the hull outer plating.

[0086] Specifically, in one embodiment of the present application, when in use, the specifications and quantity of the anti-friction roller 2 and the electromagnetic suction cup 3 can be selected according to the size and force level of the water intake cantilever 1, and installed at appropriate positions of the water intake cantilever 1.

[0087] Specifically, in one embodiment of the present application, a rotating rigid water intake cantilever 1 is taken as an example. For other types of water intake cantilevers 1, the method proposed in the present invention can also be used by taking appropriate measures. During implementation, it is only necessary to install components on the water intake cantilever 1 without major modifications to the aquaculture vessel. Therefore, the present invention does not require design modification and rework for aquaculture vessels under construction, and the present invention does not require shutdown and factory modification for aquaculture vessels put into use. The method has simple principles, convenient implementation, safety and reliability, can be applied to various aquaculture vessels, and has broad application prospects.

[0088] In general, the invention aims to solve the technical problems of existing marine fishery aquaculture vessels in the process of deep water intake, such as the water intake cantilever is easy to swing, easy to collide and rub with the hull during operation, and the fixing method is unreliable. A water intake cantilever with a reasonable structure, safety, stability and strong adaptability and a method for using the same are proposed; by adopting a truss-type rigid structure, setting a collaborative positioning device of anti-friction rollers and electromagnetic suction cups, and coordinating with a reset device and a lifting mechanism, the stability and automation level of the water intake operation are effectively improved, the hull loss and personnel operation risks are reduced, and the deep clean seawater intake capacity and operational reliability of the aquaculture vessel are significantly enhanced.

[0089] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A water intake cantilever for a marine fishery aquaculture vessel, the water intake cantilever having a water intake depth greater than 30 meters, characterized in that: The water intake cantilever (1) is a rigid truss structure, and is provided with an anti-friction roller (2) and an electromagnetic suction cup (3); During the lowering or lifting process of the water intake boom (1), a rolling pair is formed between the water intake boom (1) and the ship's side outer plate (10) through the anti-friction roller (2), and the water intake boom (1) is guided by the anti-friction roller (2) and prevented from directly colliding or rubbing with the ship's side outer plate (10); When the water intake boom (1) reaches the target water intake depth, the electromagnetic suction cup (3) absorbs the hull side outer plate (10) to fix the water intake boom (1) to prevent it from swinging during underwater operation; The anti-friction roller (2) and the electromagnetic sucker (3) are both arranged on a side of the water intake cantilever (1) close to the outer plate of the hull; A pump is provided at one end of the water intake cantilever (1) for entering seawater, and the pump is connected to a water intake pipe (8) through a pipeline; the output end of the water intake pipe (8) is connected to the aquaculture tank, and a bearing (9) is provided on the water intake pipe (8) for supporting the water intake pipe (8) to rotate with the water intake cantilever (1); A reset device and a moving pair are provided between the anti-friction roller (2) and the water intake cantilever (1); a reset device is provided on the base of the anti-friction roller (2), and the reset device includes a spring (4); After the electromagnetic sucker (3) performs the adsorption action, the anti-friction roller (2) is pressed by the water intake cantilever (1), so that the water intake cantilever (1) overcomes the resistance of the reset device and moves relative to the anti-friction roller (2); when the electromagnetic sucker (3) does not perform the adsorption action and the anti-friction roller (2) is not pressed by the water intake cantilever (1), the water intake cantilever (1) and the anti-friction roller (2) remain in the initial position, and the reset device is used to resist the vibration of the water intake cantilever (1).

2. The water intake cantilever for a marine fishery aquaculture vessel according to claim 1, characterized in that: The height of the electromagnetic sucker (3) is lower than the anti-friction roller (2), so that a gap is maintained between the electromagnetic sucker (3) and the ship side outer plate (10).

3. The water intake cantilever of a marine fishery aquaculture vessel according to claim 2, characterized in that: The cable of the electromagnetic sucker (3) is laid in a cable pipe on the water intake cantilever (1).

4. The water intake cantilever for a marine fishery aquaculture vessel according to claim 1, characterized in that: The water intake cantilever (1) is equipped with a retractable rope (6) and a lifting device, and the lifting device drives the water intake cantilever (1) to be lifted or lowered through the retractable rope (6).

5. A method for using a water intake cantilever for a marine fishery aquaculture vessel, using the water intake cantilever for a marine fishery aquaculture vessel according to any one of claims 1 to 4, characterized in that: When the water intake boom (1) is lowered, the water intake boom (1) moves downward under the guidance of the anti-friction roller (2), and the electromagnetic suction cup (3) does not move, and maintains a certain gap with the outer plate of the hull; when the water intake boom (1) reaches the target water intake depth, the electromagnetic suction cup (3) performs an adsorption action, and an electromagnetic suction force is generated between the electromagnetic suction cup (3) and the outer plate (10) of the hull side.

6. The method for using a water intake boom for a marine fishery aquaculture vessel according to claim 5, characterized in that: The electromagnetic suction cup (3) performs an adsorption action, and the electromagnetic suction cup (3) drives the water intake cantilever (1) to press the anti-friction roller (2), and the gap between the electromagnetic suction cup (3) and the hull outer plate is reduced to contact the hull outer plate, and the water intake cantilever (1) is fixed, and the water intake operation is performed at the water intake target depth; When the water intake cantilever (1) is recovered, the electromagnetic suction cup (3) is powered off, the electromagnetic suction force disappears, the water intake cantilever (1) is reset under the drive of the spring (4), the electromagnetic suction cup (3) and the hull outer plate are restored, and the water intake cantilever (1) moves to the initial position under the guidance of the anti-friction roller (2).

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