A lifting jacket seine suitable for offshore wind farms

Through the design of grouped traction shafts and tension components, combined with depth sensors and automatic control systems, the problem of uneven stress in harsh sea conditions is solved, and stable lifting and safe breeding are achieved.

CN118614442BActive Publication Date: 2025-08-12CHINA THREE GORGES CORP FUJIAN ENERGY INVESTMENT CO LTD +2
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Patent Information

Application Number
CN202411053503.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-02
Publication Date
2025-08-12
Estimated Expiration
2044-08-02

AI Technical Summary

Technical Problem

In the prior art, in catheter fence farming, the lifting method is easily affected by wind and waves, resulting in uneven force on the cage, making it difficult to reach the target diving depth, or even tilt or roll over, affecting the safety of breeding.

Method used

The design of grouped traction shafts and tension components is adopted. The traction shaft is rotated simultaneously through the traction components, and the mooring cable is used to achieve stable lifting and lowering of the fence. Combined with the depth sensor and automatic control system, it ensures that the fence is positioned at the central axis of the conduit frame, reduces the sea level height and locks the angle, and the tension components adjust the tension of the mooring cable under harsh sea conditions to maintain balance.

Benefits of technology

It improves the wind and wave resistance of the fence, reduces loads, avoids structural damage and escape of breeding objects, ensures the safety of facilities and breeding objects, and achieves stable lifting and convenient cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of aquaculture equipment, and discloses a lifting jacket enclosure suitable for offshore wind farms, comprising: a jacket, wherein a working platform is provided on the top of the jacket; a control box is arranged at the bottom of the working platform; a enclosure is arranged in the jacket; and a plurality of traction shafts are arranged in the control box, wherein the traction shafts are connected with mooring cables, one end of each mooring cable is connected to the enclosure. The enclosure can be always positioned at the central axis position of the jacket by using multiple groups of mooring cables, so that the enclosure can dive to a target depth to avoid wind and waves, thereby improving the enclosure's wind and wave resistance. By changing the diving depth of the enclosure, the enclosure load is reduced, and a series of problems such as damage to the enclosure structure and escape of aquaculture objects are solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture equipment, and in particular to a lifting jacket enclosure suitable for offshore wind farms. Background Art

[0002] As fishery resources decline, humanity's approach to obtaining marine aquatic products has gradually shifted from capture fishing to aquaculture. my country is a major aquaculture producer, accounting for approximately 59.71% of the world's total. In 2022, my country's marine aquaculture output was approximately 2.28 million tons, accounting for 33.14% of total aquaculture output. With the continued development of offshore wind power, traditional fisheries are finding space to operate. Expanding the coordinated development of diverse marine industries and innovating new models for the integrated development of offshore wind power and marine fisheries are becoming increasingly important. This has led to the emergence of a new integrated development model that uses wind turbines and aquaculture cages.

[0003] Due to the influence of typhoons, jacket-based enclosure aquaculture in China's southeastern coastal areas typically has a flood season in summer and autumn, from May to October each year. Typhoons are particularly frequent during the peak period from August to September, often resulting in strong winds and high waves. These conditions constantly impact the enclosures, increasing their load and damaging their structure, leading to overall tilting or damage, which can easily cause fish to escape and endanger the interests of aquaculture practitioners.

[0004] Existing lifting control technology has been used in offshore platforms, aquaculture cages, and other fields, but it has not been applied to jacket-based enclosure aquaculture. Previous lifting methods have all relied on changing the buoyancy of the facility to lower it to the target depth to avoid wind and waves. For example, with HDPE cages, this method often presents a series of problems. For example, during the natural deflation and sinking process, the cage is affected by wind, waves, and currents, resulting in uneven force on the entire cage, ultimately preventing it from reaching the target diving depth and potentially causing it to tilt or even capsize. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a lifting jacket seine suitable for offshore wind farms, aiming to alleviate the above-mentioned problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A lifting jacket seine suitable for an offshore wind farm, comprising:

[0008] A jacket frame, wherein a working platform is provided on the top of the jacket frame;

[0009] A control box provided at the bottom of the working platform;

[0010] a seine net provided in the jacket;

[0011] A plurality of traction shafts are provided in the control box, each of the traction shafts being connected to a mooring cable, one end of each mooring cable being connected to the seine, wherein the plurality of traction shafts are divided into two groups, an upper group and an lower group, wherein the mooring cables on the two traction shafts in the upper group pass through the control box and are connected to the top of the seine, and the mooring cables on the two traction shafts in the lower group pass through the control box and are connected to the bottom of the seine, wherein the traction shafts in the upper group rotate to release the mooring cables, and the traction shafts in the lower group rotate to reel in the mooring cables;

[0012] A traction component provided between the control box and the traction shaft, for synchronously rotating a plurality of traction shafts, wherein the traction component is capable of locking the traction shaft when the traction shaft is rotated to a preset angle;

[0013] A tension component is provided between the control box and the traction shaft, and is used to rotate the traction shaft again by a preset angle when the rotation of the traction shaft stops.

[0014] Preferably, the traction component includes a partition connected to the control box, the partition separates the control box into an upper cavity and a lower cavity, the partition is rotatably connected to two worms extending into the upper cavity and the lower cavity, the traction shaft is connected to a worm wheel engaged with the worm, the partition is rotatably connected to a transmission shaft, the transmission shaft is connected to a first bevel gear, and the worm is connected to a second bevel gear.

[0015] Preferably, the traction component further includes a motor connected to the partition, and a chain transmission mechanism is connected between the drive shaft of the motor and the transmission shaft.

[0016] Preferably, the top of the partition is connected to a PLC controller connected to the motor, and the top of the fence is connected to a depth sensor connected to the PLC controller.

[0017] Preferably, the traction shaft includes a first shaft and a second shaft rotatably connected to the control box, the mooring cable is connected to the second shaft, the worm gear is connected to the first shaft, a limit rod is slidably connected to the second shaft, one side of the limit rod is connected to a limit block, a limit opening adapted to the limit block is opened on one side of the first shaft, and a first spring is connected between the limit rod and the second shaft.

[0018] Preferably, the tension member includes a spur gear connected to the second shaft, and a rack adapted to the spur gear is slidably connected to the partition.

[0019] Preferably, the tension component also includes a top opening opened on the partition, a horizontal bar is connected to the top opening, a limiting shaft connected to the horizontal bar is connected to the rack, a second spring is connected between the horizontal bar and the rack, a top rod is slidably connected to the horizontal bar, a first connecting rod is rotatably connected to the top rod, the top of the first connecting rod is rotatably connected to a first top block slidably connected to the horizontal bar, and a second top block is connected to one side of the rack.

[0020] Preferably, the tension component also includes a third top block slidably connected to the inner bottom surface of the control box and the top of the partition, the top of the top rod is connected to a connecting plate, the connecting plate is rotatably connected to a second connecting rod rotatably connected to the third top block, the limit rod is connected to a fourth top block, the top rod is slidably connected to a connecting ring, the first connecting rod is rotatably connected to the connecting ring, the top rod is connected to a limiting ring, and a third spring is connected between the connecting ring and the top rod.

[0021] Preferably, the second connecting rod includes a first rod rotatably connected to the connecting plate, a second rod rotatably connected to the first rod and connected to the third top block, a fourth spring is connected between the first rod and the second rod, a plurality of slots are provided on the first rod, a clamping rod adapted to the slots is slidably connected to the second rod, a fifth spring is connected between the clamping rod and the second rod, the slots are semi-spherical slots, one end of the clamping rod is semi-spherical, and a ratchet mechanism is provided between the spur gear and the second shaft.

[0022] Preferably, the inner bottom surface of the control box is connected to an oil cylinder, the telescopic shaft of the oil cylinder is connected to a connecting bar, and the connecting bar is connected to the push rod.

[0023] In summary, the present invention mainly has the following beneficial effects:

[0024] By setting up a seine, the aquaculture direction can be placed in the seine when it is used. In the case of severe sea conditions, it can be adjusted according to the specific sea conditions. The traction components can be used to rotate multiple traction shafts. The traction shafts of the upper group rotate to release the mooring cables to lower the current sea level of the seine, and the traction shafts of the lower group rotate to reel in the mooring cables. In conjunction with the descending seine, multiple groups of mooring cables can be used to always position the seine at the central axis position of the conductor frame, so that the seine can dive to the target depth to avoid wind and waves, thereby improving the seine's ability to resist wind and waves. By changing the diving depth of the seine, the load of the seine is reduced, and a series of problems such as damage to the seine structure and escape of aquaculture objects are solved. In addition, the seine is independent of the conductor frame, which is convenient for subsequent cleaning of the seine. Furthermore, when the traction component rotates the traction shaft to a preset angle, the angle of the traction shaft can also be locked to ensure the safety of the seine facilities and aquaculture objects. In addition, the tension component can also rotate the traction shaft to a preset angle again when the traction component stops rotating the traction shaft. In severe sea conditions, waves and undercurrents can impact the purse net and mooring cables. Furthermore, the weight of the purse net and the aquaculture within it is relatively light. When towing light objects, the tension and force on the mooring cables are generally relatively simple. Because the load is relatively light, it does not exert significant tension on the mooring cables. This light load allows the purse net to be used less closely to its maximum load capacity, resulting in a higher safety factor but lower tension. However, when the impact of waves and undercurrents is strong, the purse net may sway. At this point, the tensioning component can rotate the traction shaft again by a preset angle, allowing the traction shaft that releases the mooring cable to retract a portion of the mooring cable, and the traction shaft that reels in the mooring cable to rewind a portion of the mooring cable, thereby increasing the tension in the mooring cable. This balances the cage, thereby partially improving the purse net's wind and wave resistance and preventing the purse net from swaying, which could affect the aquaculture within. This solves the problem of prior art methods that change the buoyancy of the facility, which can easily cause uneven force on the entire cage, resulting in the cage failing to reach the target diving depth and even tilting or even capsizing.

[0025] The present invention adopts a segmented netting solution to form a closed aquaculture space, integrating the jacket structure with the enclosure structure to achieve a shared infrastructure. The main core of the present invention is: first, it uses the law that waves gradually decay as the water depth increases to make the enclosure net dive to the target depth, ensuring the safety of the enclosure facilities and aquaculture objects; second, the depth sensor collects real-time data, and the mooring cable pulls the enclosure net to the target depth through the automatic control system, which can achieve stable lifting; third, it adopts a enclosure net structure independent of the jacket structure, which can be lifted and lowered to facilitate the operation of replacing the net. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a front view schematic diagram of the overall structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the control box structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the partition structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the first and second shaft structures of the present invention;

[0031] Figure 6 yes Figure 5 A magnified schematic diagram of the local structure at point A in the middle;

[0032] Figure 7 2. It is a schematic diagram of the rack structure of the present invention;

[0033] Figure 8 It is a schematic structural diagram of the connecting plate of the present invention;

[0034] Figure 9 It is a schematic diagram of the second connecting rod structure of the present invention.

[0035] Reference numerals:

[0036] 100, jacket; 101, working platform; 102, control box; 103, seine; 104, traction shaft; 105, mooring line; 106, bulkhead; 107, upper chamber; 108, lower chamber;

[0037] 200, worm; 201, worm wheel; 202, transmission shaft; 203, first bevel gear; 204, second bevel gear; 205, motor; 206, chain transmission mechanism; 207, PLC controller; 208, depth sensor; 209, first shaft; 210, second shaft; 211, limit rod; 212, limit block; 213, limit opening; 214, first spring;

[0038] 300, spur gear; 301, rack; 302, top opening; 303, horizontal bar; 304, limit shaft; 305, second spring; 306, ejector rod; 307, first connecting rod; 308, first ejector block; 309, second ejector block;

[0039] 400, third top block; 401, connecting plate; 402, second connecting rod; 403, fourth top block; 404, connecting ring; 405, limiting ring; 406, third spring;

[0040] 500, first rod; 501, second rod; 502, fourth spring; 503, slot; 504, latching rod; 505, fifth spring; 506, oil cylinder; 507, connecting bar. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] refer to Figures 1-9 , a lifting jacket seine suitable for offshore wind farms, comprising:

[0043] The jacket frame 100 has a working platform 101 on its top;

[0044] A control box 102 is provided at the bottom of the working platform 101;

[0045] A seine 103 provided within the jacket 100;

[0046] Multiple traction shafts 104 are provided in the control box 102. Each traction shaft 104 is connected to a mooring cable 105. One end of the mooring cable 105 is connected to the purse seine 103. The multiple traction shafts 104 are divided into two groups, upper and lower. The mooring cables 105 on the two traction shafts 104 in the upper group pass through the control box 102 and are connected to the top of the purse seine 103. The mooring cables 105 on the two traction shafts 104 in the lower group pass through the control box 102 and are connected to the bottom of the purse seine 103. The traction shafts 104 in the upper group rotate to release the mooring cables 105, while the traction shafts 104 in the lower group rotate to reel in the mooring cables 105.

[0047] A traction component provided between the control box 102 and the traction shaft 104 is used to synchronously rotate the multiple traction shafts 104. The traction component can lock the traction shaft 104 when the traction shaft 104 is rotated to a preset angle.

[0048] A tension member provided between the control box 102 and the traction shaft 104 is used to rotate the traction shaft 104 again by a preset angle when the traction shaft 104 stops rotating;

[0049] By setting up the seine 103, when in use, the aquaculture can be placed in the seine 103. In the case of bad sea conditions, it can be adjusted according to the specific sea conditions. The traction components rotate the multiple traction shafts 104. The upper group of traction shafts 104 rotates to release the mooring cable 105 to lower the current sea level of the seine 103. The lower group of traction shafts 104 rotates to reel in the mooring cable 105. In conjunction with the descending seine 103, the multiple groups of mooring cables 105 can always position the seine 103 at the central axis position of the jacket 100, so that the seine 103 can dive to the target depth to avoid the wind. The wind and wave resistance of the seine 103 is improved. By changing the diving depth of the seine 103 and reducing the load of the seine 103, a series of problems such as damage to the structure of the seine 103 and escape of the aquaculture objects are solved. In addition, the seine 103 is independent of the jacket 100, which is convenient for subsequent cleaning of the seine 103. Furthermore, when the traction component rotates the traction shaft 104 to a preset angle, the angle of the traction shaft 104 can be locked to ensure the safety of the seine 103 facilities and the aquaculture objects. In addition, the tension component set can also stop rotating the traction shaft 104 when the traction component stops rotating the traction shaft 104. The traction shaft 104 is rotated to a preset angle. When the sea conditions are bad, the waves and undercurrents will impact the purse seine 103 and the mooring line 105, and the weight of the purse seine 103 and the aquaculture objects therein is not large. When towing light objects, the tension and force of the mooring line 105 are usually relatively simple. Because the load is light, it will not produce a large pulling force on the mooring line 105. Because the load is light, the degree of use close to its maximum carrying capacity is low. Although the safety factor is high, the tension is small. When the impact of waves and undercurrents is large, the purse seine 103 will swing. At this time, the The tensioning component can rotate the traction shaft 104 again by a preset angle, so that the traction shaft 104 that releases the mooring line 105 retracts a portion of the mooring line 105, and the traction shaft 104 that reels in the mooring line 105 rewinds a portion of the mooring line 105, thereby increasing the tension of the mooring line 105. The cage is then in a balanced state, thereby partially improving the wind and wave resistance of the seine 103 and preventing the seine 103 from shaking and affecting the aquacultured animals therein. This solves the problem in the prior art of changing the buoyancy of the facility, which easily causes uneven force on the entire cage, resulting in the cage ultimately failing to reach the target diving depth and even causing it to tilt or even overturn.

[0050] This application adopts a segmented netting solution to form a closed breeding space, integrating the pipe frame structure and the enclosure structure into one to achieve shared infrastructure.

[0051] The main core of the present invention:

[0052] First, by taking advantage of the fact that waves gradually decay as the water depth increases, the seine is lowered to the target depth, ensuring the safety of the seine facilities and the aquacultured animals.

[0053] Second, the depth sensor collects real-time data and uses the automatic control system to pull the mooring cable to the target depth, achieving stable lifting and lowering.

[0054] Third, a net structure independent of the conductor frame is adopted, which can be lifted and lowered to facilitate the replacement of the net.

[0055] As a further embodiment of the present invention, the traction component includes a partition 106 connected to the control box 102, the partition 106 separates the control box 102 into an upper cavity 107 and a lower cavity 108, the partition 106 is rotatably connected to two worms 200 extending into the upper cavity 107 and the lower cavity 108, the traction shaft 104 is connected to a worm wheel 201 meshing with the worm 200, the partition 106 is rotatably connected to a transmission shaft 202, the transmission shaft 202 is connected to a first bevel gear 203, and the worm 200 is connected to a second bevel gear 204;

[0056] By setting up the transmission shaft 202, when in use, the operator can rotate the transmission shaft 202. The rotation of the transmission shaft 202 can rotate the worm 200 through the first bevel gear 203 and the second bevel gear 204. The rotation of the two worms 200 can rotate multiple traction shafts 104 synchronously through the worm gear 201, so as to achieve the purpose of rotating the traction shaft 104 of the upper group to release the mooring cable 105, and rotating the traction shaft 104 of the lower group to reel in the mooring cable 105, thereby moving the position of the seine 103.

[0057] As a further solution of the present invention, the traction component further includes a motor 205 connected to the partition 106, and a chain transmission mechanism 206 is connected between the drive shaft of the motor 205 and the transmission shaft 202;

[0058] By providing the motor 205 , the motor 205 and the chain transmission mechanism 206 can be used to provide driving force for the rotation of the transmission shaft 202 during application.

[0059] As a further embodiment of the present invention, the top of the partition 106 is connected to a PLC controller 207 connected to the motor 205, and the top of the fence 103 is connected to a depth sensor 208 connected to the PLC controller 207;

[0060] By setting up a depth sensor 208 and a PLC controller 207 on the work platform 101, the real-time depth data of the seine 103 is obtained through the depth sensor 208, and then the PLC controller 207 controls the traction component, and adjusts the length of the mooring cable 105 by rotating the traction shaft 104, ultimately achieving the accuracy of the lifting and diving depth and the stability of the lifting process, so that the seine 103 can accurately reach the target depth to avoid wind and waves.

[0061] As a further embodiment of the present invention, the traction shaft 104 includes a first shaft 209 and a second shaft 210 rotatably connected to the control box 102. The mooring cable 105 is connected to the second shaft 210. The worm gear 201 is connected to the first shaft 209. A limit rod 211 is slidably connected to the second shaft 210. One side of the limit rod 211 is connected to a limit block 212. A limit opening 213 adapted to the limit block 212 is formed on one side of the first shaft 209. A first spring 214 is connected between the limit rod 211 and the second shaft 210.

[0062] By setting the first shaft 209, the first shaft 209 can be rotated by the worm 200 when the worm 200 rotates. The rotation of the first shaft 209 can rotate the second shaft 210 through the limit opening 213, the limit block 212, and the limit rod 211, so that the second shaft 210 can reel in or release the mooring line 105. When the worm 200 stops rotating, the position of the second shaft 210 can be locked by utilizing the self-locking property between the worm wheel 201 and the worm 200, so as to achieve the purpose of locking the angle when the traction shaft 104 is rotated to a preset angle. When the purse seine 103 dives to the preset position and the tension of the mooring line 105 needs to be increased, the position of the limit rod 211 can be moved first, so that the limit block 212 on the limit rod 211 leaves the limit opening 213, and then the second shaft 210 is rotated. After the second shaft 210 reels or releases a part of the mooring line 105, the limit rod 211 is reset by the force of the first spring 214 and is again fitted with the first rod 500 with the locked angle, thereby locking the angle of the second shaft 210 that is rotated again, thereby achieving the purpose of increasing the tension of the mooring line 105.

[0063] As a further solution of the present invention, the tension member includes a spur gear 300 connected to the second shaft 210, and a rack 301 adapted to the spur gear 300 is slidably connected to the partition plate 106;

[0064] By providing the rack 301, when in use, the position of the limit rod 211 can be moved first to disengage the limit block 212 from the limit opening 213, and then the rack 301 can be moved upward. The upward movement of the rack 301 can engage with the spur gear 300. When the rack 301 moves upward to a preset position, the spur gear 300 can drive the second shaft 210 to rotate, thereby achieving the purpose of allowing the second shaft 210 to reel in or release the mooring line 105.

[0065] As a further embodiment of the present invention, the tension member further includes a top opening 302 formed on the partition 106, a horizontal bar 303 being connected to the top opening 302, a limiting shaft 304 connected to the horizontal bar 303 being connected to the rack 301, a second spring 305 being connected between the horizontal bar 303 and the rack 301, a top rod 306 being slidably connected to the horizontal bar 303, a first connecting rod 307 being rotatably connected to the top rod 306, a first top block 308 being slidably connected to the horizontal bar 303 at the top of the first connecting rod 307, and a second top block 309 being connected to one side of the rack 301;

[0066] By setting the top rod 306, when in use, the top rod 306 can be moved upward. When the top rod 306 moves upward to a preset position, the first connecting rod 307 can touch the first top block 308. The first top block 308 is forced to move and can press the second top block 309, thereby achieving the purpose of moving the rack 301 upward.

[0067] As a further embodiment of the present invention, the tension member further includes a third top block 400 slidably connected to the inner bottom surface of the control box 102 and the top of the partition 106, a connecting plate 401 is connected to the top of the top rod 306, a second connecting rod 402 rotatably connected to the connecting plate 401 and rotatably connected to the third top block 400, a fourth top block 403 is connected to the limit rod 211, a connecting ring 404 is slidably connected to the top rod 306, a first connecting rod 307 is rotatably connected to the connecting ring 404, a limiting ring 405 is connected to the top rod 306, and a third spring 406 is connected between the connecting ring 404 and the top rod 306;

[0068] By setting the third spring 406, the setting of the third spring 406 can limit the initial position of the connecting ring 404, so that a certain distance is maintained between the limit ring 405 and the connecting ring 404. When the position of the push rod 306 is moved upward, the limit ring 405 gradually moves closer to the connecting ring 404. When the limit ring 405 has not yet contacted the connecting ring 404, the push rod 306 can drive the connecting plate 401 to move. The connecting plate 401 can use the second connecting rod 402 to touch the third push block 400, so that the third push block 400 is displaced to squeeze the fourth push block 403. The fourth push block 403 is forced to move, so as to achieve the purpose of moving the limit rod 211 before moving the rack 301.

[0069] As a further solution of the present invention, the second connecting rod 402 includes a first rod 500 rotatably connected to the connecting plate 401, a second rod 501 rotatably connected to the third top block 400 is slidably connected to the first rod 500, a fourth spring 502 is connected between the first rod 500 and the second rod 501, a plurality of slots 503 are provided on the first rod 500, a clamping rod 504 adapted to the slots 503 is slidably connected to the second rod 501, a fifth spring 505 is connected between the clamping rod 504 and the second rod 501, the slots 503 are semi-spherical slots, one end of the clamping rod 504 is semi-spherical, and a ratchet mechanism is provided between the spur gear 300 and the second shaft 210;

[0070] By setting the fifth spring 505, the fifth spring 505 can use its own potential to allow the card rod 504 to be stuck in the card slot 503, so that a certain friction force is formed between the card rod 504 and the card slot 503. When the connecting plate 401 moves, the friction between the card rod 504 and the card slot 503 can make the second rod 501 touch the third top block 400, and the third top block 400 makes the fourth top block 403 and the limit rod 211 move. When the third top block 400 moves to the extreme position, the card rod 504 disengages from the card slot 503, and the card rod 504 slides on the second rod 501 with the first rod 500, which can compress the fourth spring 502 rod. At this time, the limit ring 405 touches the connecting ring 404, can force the connecting ring 404 to move, so as to achieve the purpose of first moving the limit rod 211 and then moving the rack 301 to rotate the second shaft 210 when the top rod 306 is lifted upward. In addition, after rotating the second shaft 210 to a preset angle, the top rod 306 can be reset downward. During the downward reset of the top rod 306, the third top block 400 and the first top block 308 will be reset synchronously. In this process, a part of the tension of the mooring line 105 will be reduced. After the tension of the mooring line 105 is greatly increased, a part of the tension will be released to ensure that the box will be in a balanced state. At the same time, it can also avoid the problem of excessive pulling of the seine 103 and causing damage to the seine 103.

[0071] As a further solution of the present invention, the inner bottom surface of the control box 102 is connected to a cylinder 506, the telescopic shaft of the cylinder 506 is connected to a connecting bar 507, and the connecting bar 507 is connected to the top rod 306;

[0072] By providing the oil cylinder 506 , a driving force can be provided for the movement of the push rod 306 .

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lifting jacket seine suitable for offshore wind farms, characterized in that: include: A jacket frame, wherein a working platform is provided on the top of the jacket frame; A control box provided at the bottom of the working platform; a seine net provided in the jacket; A plurality of traction shafts are provided in the control box, each of the traction shafts being connected to a mooring cable, one end of each mooring cable being connected to the seine, wherein the plurality of traction shafts are divided into two groups, an upper group and an lower group, wherein the mooring cables on the two traction shafts in the upper group pass through the control box and are connected to the top of the seine, and the mooring cables on the two traction shafts in the lower group pass through the control box and are connected to the bottom of the seine, wherein the traction shafts in the upper group rotate to release the mooring cables, and the traction shafts in the lower group rotate to reel in the mooring cables; A traction component provided between the control box and the traction shaft, for synchronously rotating a plurality of traction shafts, wherein the traction component is capable of locking the traction shaft when the traction shaft is rotated to a preset angle; A tension member provided between the control box and the traction shaft, for rotating the traction shaft again by a preset angle when the traction shaft stops rotating; The traction component includes a partition connected to the control box, the partition separating the control box into an upper cavity and a lower cavity, the partition rotatably connected to two worms extending into the upper cavity and the lower cavity, the traction shaft is connected to a worm wheel meshing with the worms, the partition is rotatably connected to a transmission shaft, the transmission shaft is connected to a first bevel gear, and the worm is connected to a second bevel gear; The traction shaft includes a first shaft and a second shaft rotatably connected to the control box, the mooring cable is connected to the second shaft, the worm gear is connected to the first shaft, a limit rod is slidably connected to the second shaft, one side of the limit rod is connected to a limit block, a limit opening adapted to the limit block is opened on one side of the first shaft, and a first spring is connected between the limit rod and the second shaft; The tension member includes a spur gear connected to the second shaft, and a rack adapted to the spur gear is slidably connected to the partition plate; The tension member also includes a top opening opened on the partition, a horizontal bar is connected in the top opening, a limiting shaft connected to the horizontal bar is connected in the rack, a second spring is connected between the horizontal bar and the rack, a top rod is slidably connected to the horizontal bar, a first connecting rod is rotatably connected to the top rod, a first top block slidably connected to the horizontal bar is rotatably connected to the top of the first connecting rod, and a second top block is connected to one side of the rack; The tension component also includes a third top block slidably connected to the bottom surface of the control box and the top of the partition, the top of the top rod is connected to a connecting plate, the connecting plate is rotatably connected to a second connecting rod rotatably connected to the third top block, the limit rod is connected to a fourth top block, the top rod is slidably connected to a connecting ring, the first connecting rod is rotatably connected to the connecting ring, the top rod is connected to a limiting ring, and a third spring is connected between the connecting ring and the top rod.

2. The lifting jacket seine suitable for offshore wind farms according to claim 1, characterized in that: The traction component further includes a motor connected to the partition, and a chain transmission mechanism is connected between the driving shaft of the motor and the transmission shaft.

3. The lifting jacket seine suitable for offshore wind farms according to claim 2, characterized in that: The top of the partition is connected to a PLC controller connected to the motor, and the top of the fence is connected to a depth sensor connected to the PLC controller.

4. The lifting jacket seine suitable for offshore wind farms according to claim 1, characterized in that: The second connecting rod includes a first rod rotatably connected to the connecting plate, a second rod rotatably connected to the first rod and connected to the third top block, a fourth spring is connected between the first rod and the second rod, a plurality of slots are provided on the first rod, a clamping rod adapted to the slots is slidably connected to the second rod, a fifth spring is connected between the clamping rod and the second rod, the slots are semi-spherical slots, one end of the clamping rod is semi-spherical, and a ratchet mechanism is provided between the spur gear and the second shaft.

5. The lifting jacket seine suitable for offshore wind farms according to claim 1, characterized in that: The inner bottom surface of the control box is connected to an oil cylinder, the telescopic shaft of the oil cylinder is connected to a connecting bar, and the connecting bar is connected to the push rod.

Citation Information

Patent Citations

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    CN208115248U

  • Wind-fish fusion culture equipment based on offshore jacket foundation

    CN217742767U