Longline sea cucumber farming facility and farming method thereof

Abstract

The present invention belongs to the technical field of sea cucumber breeding, and specifically relates to a longline sea cucumber breeding facility and a breeding method thereof, comprising an anchor stone, an A-type counterweight, a B-type counterweight, a position buoy, a small float, a breeding cage, and a main stem rope. The anchor stone is fixedly connected to the main stem rope through a mounting ring, the A-type counterweight block and the B-type counterweight block are connected in series to the surface of the main stem rope, the position buoy is connected in series to the surface of the main stem rope, the breeding cage is connected in series to the surface of the main stem rope, and the small float is fixedly connected to the surface of the breeding cage. The position buoy is a large-volume buoy with a single buoyancy greater than 100 kg. By utilizing the law that waves decay exponentially with increasing water depth, the longline abalone breeding system set in the bottom waters can greatly improve its typhoon resistance, can be safely produced in the sea area outside the bay, greatly improve the breeding survival rate, and improve the quality of the breeding objects. The breeding cage adopts a suspended arrangement form, which can avoid being damaged by bottom mud and gravel, thereby improving survival ability.

Description

Technical Field

[0001] The invention belongs to the technical field of sea cucumber breeding, in particular to a longline sea cucumber breeding facility and a breeding method thereof. Background Art

[0002] Longline aquaculture is mainly used for the cultivation of economic products such as sea cucumbers, scallops, abalone, and oysters. At present, longline aquaculture is set up on the surface of the seawater. In order to avoid water aging, eutrophication, bottom aging, environmental pollution and other phenomena in the bay area, it is gradually tending to be cultivated outside the bay. The waters outside the bay have wider and better waters that can be used for marine aquaculture. They are connected to the ocean currents and have advantages that the bay waters do not have, such as fast water exchange, strong self-purification ability, high oxygen content, and great water depth. It is an excellent sea area for the development of marine aquaculture.

[0003] However, the above technologies often have the following defects: the waters outside the bay lack the protection of natural barriers, and the physical environment is relatively harsh, with strong winds, rapid currents, and high waves. Especially in typhoon weather, the sea conditions are even worse. The existing sea surface longline aquaculture facilities are mainly set up in the surface layer of seawater, which is the water layer most affected by wind and waves, and cannot meet the safety requirements of the waters outside the bay.

[0004] To this end, the present invention provides a longline sea cucumber culture facility and a culture method thereof. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: the longline sea cucumber breeding facility described in the present invention includes an anchor stone, a type A counterweight, a type B counterweight, a position float, a small float, a breeding cage, and a main stem rope. The anchor stone is fixedly connected to the main stem rope through a mounting ring. The type A counterweight and the type B counterweight are connected in series to the surface of the main stem rope. The position float is connected in series to the surface of the main stem rope. The breeding cage is connected in series to the surface of the main stem rope. The small float is fixedly connected to the surface of the breeding cage. The position float is a large-volume float with a single buoyancy greater than 100 kg. The buoyancy of the small float is greater than the sum of the gravity of the breeding cage, the breeding objects in the breeding cage, and the float itself in seawater. The breeding cage is a stacked breeding cage.

[0007] During operation, the A-type counterweight is used to ballast the main stem rope and reserve the part for rope lifting operations. The length of the mounting rope of the B-type counterweight is set to 1m to keep the main stem rope at a position 1m away from the seabed. A bottom longline abalone culture system is equipped with two buoys, which are located 5m outside the last culture cage on both sides of the main stem rope. The small float considers the influence of attached organisms and reserves a certain buoyancy. The specific value of the buoyancy is calculated according to the specifications of the culture cage selected by the farmer. The calculation formula is small float buoyancy = gravity + gravity of cultured object + gravity of buoy + gravity of attached organisms) * 1.2, where the above gravity refers to the gravity in seawater. The two ends of the main stem rope are tied to two anchor stones. Its length consists of two parts. The first part is the mounting part located between the two buoys. This part is used to mount the culture cage and is usually 80-150m long. The second part is the accessory part between the position buoy and the anchor stone. There is a section at each end of the main stem rope, and the length of the sections is equal. The length of this section is determined according to the water depth, tidal range, the height of the cage lifting machine from the water surface, and the track distance between the management ship's operating platform and the cage lifting machine. The reference formula is: Length of the accessory part of the main stem rope = high tide water depth + height of the cage lifting machine from the water surface + track distance between the management ship's operating platform and the cage lifting machine + 2. A position buoy is mounted on each end of the main stem rope's mounting part through a connecting branch rope, and breeding cages are mounted at equal intervals on the mounting part. The spacing between the breeding cages can be between 0.6 and 2m. For every two breeding cages, a type B counterweight is mounted between the two connected breeding cages. In the accessory part of the main stem rope, 2 / 3 of the part close to the anchor stone is mounted with type A counterweights at intervals of 2m, and the other 1 / 3 is mounted with type B counterweights at intervals of 1m.

[0008] Preferably, a partition is fixedly connected to the breeding cage, and the partition divides the breeding cage into several equal parts. A cover plate is hingedly connected to the surface of the breeding cage, and a support plate is slidably connected to the breeding cage. A through groove is provided on the surface of the partition, and a fixed shaft is fixedly connected to the inner wall of the breeding cage. A rotating shaft is movably connected to the surface of the fixed shaft. A connecting rod is fixedly connected to one side of the support plate, and the other end of the connecting rod passes through the through groove and is slidably connected, and the end is connected to the rotating shaft. A pull ring is fixedly connected to the end of the rotating shaft, and the partition is meshed; during work, when it is necessary to fish out the sea cucumbers in the breeding cage, the pull ring is lifted, and at the same time, the rotating shaft drives the connecting rod, and the connecting rod lifts the support plate, and the sea cucumbers in the breeding cage are lifted through the support plate, so that the sea cucumbers are located at the mouth of the sea cucumber cage, which is convenient for the staff to take and put.

[0009] Preferably, telescopic plates are slidably connected to both sides of the support plate through elastic members, and the ends of the telescopic plates are arc surfaces and fit against the inner walls of the breeding cage. During operation, when the support plate is lifted upward, the telescopic plates will pop outward under the action of the springs, so that the telescopic plates are always in contact with the side walls of the sea cucumber cage, thereby increasing the expansion area of ​​the support plate and lifting all the sea cucumbers in the sea cucumber cage. At the same time, the water holes on the surface of the sea cucumber cage can be scraped and cleaned by the telescopic plates to avoid blockage.

[0010] Preferably, the surface of the telescopic plate is slidably connected to a top shaft through an elastic member, the surface of the top shaft is an arc surface, a positioning shaft is fixedly connected in the through groove, the connecting rod is slidably connected on the surface of the positioning shaft, one side of the connecting rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the side wall of the through groove; during operation, as the supporting plate slides, the top shaft of the arc surface will be inserted into the mesh holes on the surface of the sea cucumber cage, and then when the telescopic plate continues to move, the side ridges of the eyelet will squeeze the arc surface of the top shaft, so that the top shaft will retract into the telescopic plate, and under the drive of the supporting plate, the top shaft can be stuck in the next eyelet for cleaning, and the impurities in the eyelet are pushed out by the top shaft, thereby further improving the cleaning effect of the telescopic rod, and the spring can assist the connecting rod to move upward to avoid the two ends of the connecting rod from bending under the pressure of the sea cucumber and getting stuck.

[0011] Preferably, a positioning groove is provided on the surface of the fixing rod, and a blocking block is fixedly connected to the inner wall of the rotating shaft. The side wall of the positioning groove is provided with two blocking grooves, and the blocking groove is "L"-shaped. A collar is rotatably connected to the surface of the rotating shaft, and the end of the connecting rod is fixedly connected to the collar. During operation, after the rotating shaft is moved to the extreme position, the rotating shaft is rotated clockwise so that the rotating shaft drives the blocking block to be stuck in the "L"-shaped blocking groove, and at the same time, the upward elastic force of the spring is cooperated to fix the blocking block in the blocking groove to avoid shaking, so that it is convenient for the staff to take and place the sea cucumbers. After the sea cucumbers are taken and placed, the rotating shaft is rotated counterclockwise, and then when the rotating shaft is pressed down to the bottom surface, the blocking block is again stuck in the blocking groove below to fix the rotating shaft and the support plate at the same time.

[0012] Preferably, a guide rail groove is provided on the surface of the breeding cage, and a connecting block is fixedly connected to the surface of the telescopic plate, and the connecting block is "L"-shaped. The short arm end of the connecting block passes through the guide rail groove and is slidably connected, and the end is fixedly connected to a scraper, and the surface of the scraper is provided with a slope; when working, when the telescopic plate slides, it drives the connecting block to move, so that the connecting block drives the through-groove scraper to slide, and the scraper cooperates with the oblique angle of its surface to scrape off impurities poked out by the top shaft, and at the same time, the marine organisms adsorbed on the surface of the sea cucumber cage can be scraped off, so as to avoid affecting the floating height of the sea cucumber cage underwater and further improve the cleaning effect of the top shaft.

[0013] Preferably, a chute is provided on the side wall of the breeding cage, and a baffle is fixedly connected to the surface of the connecting block, and the baffle is slidably connected in the chute; during operation, when the connecting block slides, it drives the baffle to slide in the chute, and after the support plate is fixed to the bottom surface of the sea cucumber cage, the baffle can block the chute to prevent the sea cucumbers from leaking through the chute when they are relatively small, causing losses.

[0014] A longline sea cucumber cultivation method, which uses the longline sea cucumber cultivation facility described above, comprises the following steps:

[0015] S1: The A-type counterweight is used to ballast the main stem, leaving the portion reserved for hauling. The B-type counterweight's hanging rope is set to 1m long, keeping the main stem 1m above the seabed. A bottom longline abalone culture system is equipped with two buoys, located 5m outside the last culture cage on either side of the main stem.

[0016] S2: The small floats take into account the influence of attached organisms and reserve a certain amount of buoyancy. The specific value of buoyancy is calculated according to the specifications of the breeding cages selected by the farmers. The calculation formula is: small float buoyancy = gravity + gravity of the breeding objects + gravity of the float + gravity of the attached organisms) * 1.2, where the above gravity refers to the gravity in seawater;

[0017] S3: Both ends of the main stem rope are tied to two anchor stones. Its length consists of two parts. The first part is the mounting part located between the two position buoys. This part is used to mount the culture cage and is usually 80-150m long. The second part is the auxiliary part between the position buoy and the anchor stone. There is a section at each end of the main stem rope, and its length is equal. The length of this section is determined by the water depth, tidal range, the height of the cage lifting machine from the water surface, and the track distance between the management ship's operating platform and the cage lifting machine. The reference formula is: Length of the auxiliary part of the main stem rope = high tide water depth + height of the cage lifting machine from the water surface + track distance between the management ship's operating platform and the cage lifting machine + 2;

[0018] S4: A position buoy is mounted on each end of the main stem rope through a connecting branch rope, and breeding cages are mounted at equal intervals on the mounting part. The spacing between the breeding cages can be between 0.6 and 2m. A type B counterweight is mounted between the two connected breeding cages for every two breeding cages. In the auxiliary part of the main stem rope, the 2 / 3 part close to the anchor stone is mounted with type A counterweights at intervals of 2m, and the other 1 / 3 part is mounted with type B counterweights at intervals of 1m.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The longline sea cucumber aquaculture facility and aquaculture method described in the present invention utilize the law that waves decay exponentially with increasing water depth. The longline abalone aquaculture system set up in the bottom waters can greatly improve its typhoon resistance, enable safe production in the waters outside the bay, greatly improve the aquaculture survival rate, and enhance the quality of the aquacultured objects. The aquaculture cages are arranged in a suspended manner to avoid damage from bottom mud and gravel, thereby improving survival ability.

[0021] 2. The longline sea cucumber breeding facility and breeding method described in the present invention lifts the rotating shaft by a pull ring, and at the same time, the rotating shaft drives the connecting rod, the connecting rod lifts the supporting plate, and the sea cucumbers in the breeding cage are lifted by the supporting plate, so that the sea cucumbers are located at the mouth of the sea cucumber cage, which is convenient for staff to take and place. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the layout of the single-bay bottom longline abalone culture system in Example 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the arrangement of a multi-bay bottom-layer longline abalone culture system in Example 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of a breeding cage in Example 1 of the present invention;

[0026] Figure 4 1 is a partial cross-sectional schematic diagram of a breeding cage in Example 1 of the present invention;

[0027] Figure 5 The first embodiment of the present invention Figure 4 Schematic diagram of the structure at E in the middle;

[0028] Figure 6 The first embodiment of the present invention Figure 4 Schematic diagram of the structure at D in the middle;

[0029] Figure 7 The first embodiment of the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0030] Figure 8 The first embodiment of the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0031] Figure 9 The first embodiment of the present invention Figure 4 Schematic diagram of the structure at C in the middle;

[0032] Figure 10 is a schematic diagram of the chute in the second embodiment of the present invention;

[0033] Figure 11 It is a schematic diagram of the method flow in an embodiment of the present invention.

[0034] In the figure: 1. Anchor stone; 2. Type A counterweight; 3. Type B counterweight; 4. Position float; 5. Small float; 6. Breeding cage; 7. Main stem rope; 8. Connecting rod; 9. Guide rail; 10. Fixed shaft; 11. Slot; 12. Ring; 13. Block; 14. Positioning groove; 15. Connecting block; 16. Inclined surface; 17. Baffle; 18. Slide; 19. Cover; 20. Rotating shaft; 21. Partition; 22. Through groove; 23. Scraper; 24. Support plate; 25. Telescopic plate; 26. Top shaft; 27. Spring; 28. Positioning shaft. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0036] Example 1:

[0037] like Figures 1 to 9 As shown, a longline sea cucumber breeding facility according to an embodiment of the present invention includes an anchor stone 1, an A-type counterweight 2, a B-type counterweight 3, a position float 4, a small float 5, a breeding cage 6, and a main stem rope 7. The anchor stone 1 is fixedly connected to the main stem rope 7 through a mounting ring. The two A-type counterweights and the three B-type counterweights are serially connected to the surface of the main stem rope 7. The position float 4 is serially connected to the surface of the main stem rope 7. The breeding cage 6 is serially connected to the surface of the main stem rope 7. The small float 5 is fixedly connected to the surface of the breeding cage 6. The position float 4 is a large-volume float with a single buoyancy greater than 100 kg. The buoyancy of the small float 5 is greater than the sum of the gravity of the breeding cage 6, the breeding objects in the breeding cage 6, and the float itself in seawater. The breeding cage 6 is a stacked breeding cage 6.

[0038] During operation, the A-type counterweight 2 is used to ballast the main stem rope 7 and reserve the part for the rope lifting operation. The length of the hanging rope of the B-type counterweight 3 is set to 1m, so as to keep the main stem rope 7 at a position 1m away from the seabed. A bottom longline abalone culture system is equipped with two buoys 4, which are located 5m outside the last culture cage 6 on both sides of the main stem rope 7. The small float 5 takes into account the influence of attached organisms and reserves a certain buoyancy. The specific value of the buoyancy is calculated according to the specifications of the culture cage 6 selected by the farmer. The calculation formula is buoyancy of small float 5 = gravity + gravity of cultured object + gravity of float + gravity of attached organisms) * 1.2, wherein the above gravity refers to the gravity in seawater. Both ends of the main stem rope 7 are tied to two anchor stones 1. Its length includes two parts. The first part is the hanging part located between the two buoys 4. This part is used to hang the culture cage 6, and its length is usually 80-150m. The second part is the auxiliary part between the position buoy 4 and the anchor stone 1. There is a section at each end of the main stem rope 7, and the length of the section is equal. The length of this section is determined according to the water depth, tidal range, the height of the cage lifting machine from the water surface, and the track distance between the management ship operating platform and the cage lifting machine. The reference formula is: the length of the auxiliary part of the main stem rope 7 = high tide water depth + height of the cage lifting machine from the water surface + track distance between the management ship operating platform and the cage lifting machine + 2. A position buoy is mounted on each end of the mounting part of the main stem rope 7 through a connecting branch rope, and breeding cages 6 are mounted at equal intervals on the mounting part. The mounting spacing of the breeding cages 6 can be between 0.6 and 2m. For every two breeding cages 6, a B-type counterweight 3 is mounted between the two connected breeding cages 6. In the auxiliary part of the main stem rope 7, the 2 / 3 part close to the anchor stone 1 is mounted with type A counterweight 2 at a spacing of 2m, and the other 1 / 3 part is mounted with type B counterweight 3 at a spacing of 1m.

[0039] A partition 21 is fixedly connected to the breeding cage 6, and the partition 21 divides the breeding cage 6 into several equal parts. The surface of the breeding cage 6 is hingedly connected to a cover plate 19, and the breeding cage 6 is slidably connected to a support plate 24. A through groove 22 is provided on the surface of the partition 21, and the inner wall of the breeding cage 6 is fixedly connected to a fixed shaft 10. The surface of the fixed shaft 10 is movably connected to a rotating shaft 20. One side of the support plate 24 is fixedly connected to a connecting rod 8, and the other end of the connecting rod 8 passes through the through groove 22 for sliding connection, and the end is connected to the rotating shaft 20. The end of the rotating shaft 20 is fixedly connected to a pull ring, and the partition 21 is meshed; during work, when it is necessary to fish out the sea cucumbers in the breeding cage 6, the pull ring is lifted, and at the same time, the rotating shaft 20 drives the connecting rod 8, and the connecting rod 8 lifts the support plate 24, and the sea cucumbers in the breeding cage 6 are lifted through the support plate 24, so that the sea cucumbers are located at the mouth of the sea cucumber cage, which is convenient for the staff to take and put.

[0040] The two sides of the support plate 24 are slidably connected with a telescopic plate 25 through an elastic member. The end of the telescopic plate 25 is an arc surface and fits with the inner wall of the breeding cage 6. During operation, when the support plate 24 is lifted upward, the telescopic plate 25 will pop outward under the action of the spring 27, so that the telescopic plate 25 is always in contact with the side wall of the sea cucumber cage, thereby increasing the expansion area of ​​the support plate 24 and lifting all the sea cucumbers in the sea cucumber cage. At the same time, the water holes on the surface of the sea cucumber cage can be scraped and cleaned through the telescopic plate 25 to avoid blockage.

[0041] The surface of the telescopic plate 25 is slidably connected to a top shaft 26 by an elastic member. The surface of the top shaft 26 is an arc surface, and a positioning shaft 28 is fixedly connected to the through groove 22. The connecting rod 8 is slidably connected on the surface of the positioning shaft 28, and a spring 27 is fixedly connected to one side of the connecting rod 8, and the other end of the spring 27 is fixedly connected to the side wall of the through groove 22; when working, as the supporting plate 24 slides, the top shaft 26 of the arc surface will be inserted into the mesh holes on the surface of the sea cucumber cage. Then, when the telescopic plate 25 continues to move, the side ridges of the eyelet will squeeze the arc surface of the top shaft 26, so that the top shaft 26 will retract into the telescopic plate 25. Driven by the supporting plate 24, the top shaft 26 can be stuck in the next eyelet for cleaning, and the impurities in the eyelet are pushed out by the top shaft 26, further improving the cleaning effect of the telescopic rod, and the spring 27 can assist the connecting rod 8 to move upward, avoiding the bending of the two ends of the connecting rod 8 under the pressure of the sea cucumber and the occurrence of jamming.

[0042] The surface of the fixing rod is provided with a positioning groove 14, and the inner wall of the rotating shaft 20 is fixedly connected with a blocking block 13. The side wall of the positioning groove 14 is provided with two blocking grooves 11, and the blocking groove 11 is "L"-shaped. The surface of the rotating shaft 20 is rotatably connected with a collar 12, and the end of the connecting rod 8 is fixedly connected to the collar 12; during operation, after the rotating shaft 20 is moved to the extreme position, the rotating shaft 20 is rotated clockwise so that the rotating shaft 20 drives the blocking block 13 to be clamped in the "L"-shaped blocking groove 11, and at the same time, the upward elastic force of the spring 27 is cooperated to fix the blocking block 13 in the blocking groove 11 to avoid shaking, which is convenient for the staff to take and put the sea cucumber. After the sea cucumber is taken and put, the rotating shaft 20 is rotated counterclockwise, and then when the rotating shaft 20 is pressed down to the bottom surface, the blocking block 13 is again clamped in the blocking groove 11 below, thereby fixing the rotating shaft 20 and fixing the supporting plate 24 at the same time.

[0043] The surface of the breeding cage 6 is provided with a guide rail 9 groove, and the surface of the telescopic plate 25 is fixedly connected with a connecting block 15, and the connecting block 15 is "L"-shaped. The short arm end of the connecting block 15 passes through the guide rail 9 groove for sliding connection, and the end is fixedly connected with a scraper 23, and the surface of the scraper 23 is provided with an inclined surface 16; when working, when the telescopic plate 25 slides, it drives the connecting block 15 to move, so that the connecting block 15 drives the through-groove 22 scraper 23 to slide, and the scraper 23 cooperates with the oblique angle of its surface to scrape off impurities poked out by the top shaft 26, and at the same time, the marine organisms adsorbed on the surface of the sea cucumber cage can be scraped off, so as to avoid affecting the floating height of the sea cucumber cage underwater and further improve the cleaning effect of the top shaft 26.

[0044] Example 2:

[0045] like Figure 10 As shown, compared with Example 1, another embodiment of the present invention is: a chute 18 is provided on the side wall of the breeding cage 6, and a baffle 17 is fixedly connected to the surface of the connecting block 15, and the baffle 17 is slidably connected in the chute 18; during operation, when the connecting block 15 slides, it will drive the baffle 17 to slide in the chute 18. After the support plate 24 is fixed to the bottom surface of the sea cucumber cage, the baffle 17 can block the chute 18 to avoid leakage through the chute 18 when the sea cucumber is relatively small, causing losses.

[0046] like Figure 11 As shown, a longline sea cucumber culture method, which uses the above-mentioned longline sea cucumber culture facility, comprises the following steps:

[0047] S1: The A-type counterweight 2 is used to ballast the main stem rope 7, leaving a portion reserved for the rope hoisting operation. The length of the hanging rope of the B-type counterweight 3 is set to 1 meter, so as to keep the main stem rope 7 at a position 1 meter from the seabed. A bottom longline abalone culture system is equipped with two buoys 4, located 5 meters outside the last culture cage 6 on both sides of the main stem rope 7;

[0048] S2: The small float 5 takes into account the influence of attached organisms and also reserves a certain amount of buoyancy. The specific value of buoyancy is calculated according to the specifications of the breeding cage 6 selected by the farmer. The calculation formula is: buoyancy of small float 5 = gravity + gravity of the breeding object + gravity of the float + gravity of the attached organisms) * 1.2, where the above gravity refers to the gravity in seawater;

[0049] S3: Both ends of the main stem rope 7 are tied to two anchor stones 1. Its length consists of two parts. The first part is the mounting part located between the two position buoys 4. This part is used to mount the breeding cage 6 and is usually 80-150m long. The second part is the auxiliary part between the position buoy 4 and the anchor stone 1. There is a section at each end of the main stem rope 7, and its length is equal. The length of this section is determined according to the water depth, tidal range, the height of the cage lifting machine from the water surface, and the track distance between the management ship's operating platform and the cage lifting machine. The reference formula is: Length of the auxiliary part of the main stem rope 7 = high tide water depth + height of the cage lifting machine from the water surface + track distance between the management ship's operating platform and the cage lifting machine + 2;

[0050] S4: A position buoy is mounted on each end of the mounting portion of the main stem rope 7 through a connecting branch rope, and breeding cages 6 are mounted at equal intervals on the mounting portion. The mounting spacing of the breeding cages 6 can be between 0.6 and 2m. A B-type counterweight 3 is mounted between two connected breeding cages 6 for every two breeding cages 6. In the auxiliary portion of the main stem rope 7, the 2 / 3 portion close to the anchor stone 1 is mounted with the A-type counterweight 2 at a spacing of 2m, and the other 1 / 3 portion is mounted with the B-type counterweight 3 at a spacing of 1m.

[0051] Working principle: Type A counterweight 2 is used to ballast the main stem rope 7 and reserve the part for rope lifting operation. The length of the hanging rope of type B counterweight 3 is set to 1m, so as to keep the main stem rope 7 at a position 1m away from the seabed. A bottom longline abalone culture system is equipped with two buoys 4, which are located 5m outside the last culture cage 6 on both sides of the main stem rope 7. The small float 5 considers the influence of attached organisms and reserves a certain buoyancy. The specific value of the buoyancy is calculated according to the specifications of the culture cage 6 selected by the farmer. The calculation formula is buoyancy of small float 5 = gravity + gravity of cultured object + gravity of float + gravity of attached organisms) * 1.2, where the above gravity refers to the gravity in seawater. Both ends of the main stem rope 7 are tied to two anchor stones 1. Its length consists of two parts. The first part is the hanging part located between the two buoys 4. This part is used to hang the culture cage 6, and the length is usually 80-150m. The second part is the attached part between the position buoy 4 and the anchor stone 1. There is a section at each end of the main stem rope 7, and the length of the section is equal. The length of this section is determined according to the water depth, tidal range, the height of the cage lifting machine from the water surface, and the track distance between the management ship operating platform and the cage lifting machine. The reference formula is: Length of the attached part of the main stem rope 7 = high tide water depth + height of the cage lifting machine from the water surface + track distance between the management ship operating platform and the cage lifting machine + 2. A position buoy is mounted on each end of the mounting part of the main stem rope 7 through a connecting branch rope, and breeding cages 6 are mounted at equal intervals on the mounting part. The mounting spacing of the breeding cages 6 can be between 0.6 and 2m. For every two breeding cages 6, a B-type counterweight 3 is mounted between the two connected breeding cages 6. In the attached part of the main stem rope 7, 2 / 3 of the part close to the anchor stone 1 is mounted with A-type counterweight 2 at a spacing of 2m, and the other 1 / 3 is mounted with B-type counterweight 3 at a spacing of 1m.

[0052] When the sea cucumbers in the breeding cage 6 need to be fished out, the pull ring is lifted, and the rotating shaft 20 drives the connecting rod 8, which lifts the supporting plate 24. The sea cucumbers in the breeding cage 6 are lifted by the supporting plate 24 so that the sea cucumbers are located at the mouth of the sea cucumber cage, which is convenient for the staff to take and put. When the supporting plate 24 is lifted upward, the telescopic plate 25 pops outward under the action of the spring 27, so that the telescopic plate 25 is always attached to the side wall of the sea cucumber cage, thereby increasing the expansion area of ​​the supporting plate 24, and all the sea cucumbers in the sea cucumber cage are lifted. At the same time, the water holes on the surface of the sea cucumber cage can be scraped and cleaned by the telescopic plate 25 to avoid blockage.

[0053] As the supporting plate 24 slides, the top shaft 26 of the arc surface will be inserted into the mesh holes on the surface of the sea cucumber cage. Then, when the telescopic plate 25 continues to move, the side ridges of the eyelet will squeeze the arc surface of the top shaft 26, causing the top shaft 26 to retract into the telescopic plate 25. Driven by the supporting plate 24, the top shaft 26 can be stuck in the next eyelet for cleaning, and the impurities in the eyelet are ejected by the top shaft 26, further improving the cleaning effect of the telescopic rod. The spring 27 can assist the connecting rod 8 to move upward to avoid the two ends of the connecting rod 8 from bending under the pressure of the sea cucumber, which may cause jamming.

[0054] After the sea cucumber is taken in and put in, the rotating shaft 20 is rotated counterclockwise, and then when the rotating shaft 20 is pressed downward to the bottom surface, the block 13 is again engaged in the slot 11 below, fixing the rotating shaft 20 and fixing the supporting plate 24 at the same time. When the telescopic plate 25 slides, it drives the connecting block 15 to move, so that the connecting block 15 drives the scraper 23 of the through groove 22 to slide. The scraper 23 cooperates with the oblique angle of its surface to scrape off the impurities poked out by the top shaft 26 and at the same time, it can scrape off the marine organisms adsorbed on the surface of the sea cucumber cage, avoiding affecting the floating height of the sea cucumber cage under water and further improving the cleaning effect of the top shaft 26.

[0055] When the connecting block 15 slides, it will drive the baffle 17 to slide in the chute 18. After the support plate 24 is fixed to the bottom of the sea cucumber cage, the baffle 17 can block the chute 18 to prevent the sea cucumber from leaking through the chute 18 when it is relatively small, causing losses.

[0056] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A longline sea cucumber aquaculture facility, characterized by: The invention comprises an anchor stone (1), an A-type counterweight (2), a B-type counterweight (3), a position float (4), a small float (5), a breeding cage (6), and a main stem rope (7); the anchor stone (1) is fixedly connected to the main stem rope (7) through a mounting ring; the A-type counterweight (2) and the B-type counterweight (3) are connected in series to the surface of the main stem rope (7); the position float (4) is connected in series to the surface of the main stem rope (7); the breeding cage (6) is connected in series to the surface of the main stem rope (7); the small float (5) is fixedly connected to the surface of the breeding cage (6); the position float (4) is a large-volume float with a single buoyancy greater than 100 kg; the buoyancy of the small float (5) is greater than the sum of the gravity of the breeding cage (6), the breeding objects in the breeding cage (6), and the small float itself in seawater; and the breeding cage (6) is a stacked breeding cage (6); A partition (21) is fixedly connected to the breeding cage (6), and the partition (21) divides the breeding cage (6) into several equal parts. A cover plate (19) is hingedly connected to the surface of the breeding cage (6), and a support plate (24) is slidably connected to the breeding cage (6). A through groove (22) is provided on the surface of the partition (21). A fixed shaft (10) is fixedly connected to the inner wall of the breeding cage (6), and a rotating shaft (20) is movably connected to the surface of the fixed shaft (10). A connecting rod (8) is fixedly connected to one side of the support plate (24), and the other end of the connecting rod (8) passes through the through groove (22) and is slidably connected, and the end is connected to the rotating shaft (20). A pull ring is fixedly connected to the end of the rotating shaft (20), and the partition (21) is mesh-shaped. The two sides of the support plate (24) are slidably connected with a telescopic plate (25) through an elastic member, and the end of the telescopic plate (25) is a curved surface and fits with the inner wall of the breeding cage (6); The surface of the telescopic plate (25) is slidably connected to a top shaft (26) via an elastic member, the surface of the top shaft (26) is an arc surface, a positioning shaft (28) is fixedly connected in the through slot (22), the connecting rod (8) is slidably connected to the surface of the positioning shaft (28), one side of the connecting rod (8) is fixedly connected to a spring (27), and the other end of the spring (27) is fixedly connected to the side wall of the through slot (22).

2. A longline sea cucumber culture facility according to claim 1, characterized in that: A positioning groove (14) is provided on the surface of the fixed shaft, a clamping block (13) is fixedly connected to the inner wall of the rotating shaft (20), two clamping grooves (11) are clamped on the side wall of the positioning groove (14), and the clamping groove (11) is "L"-shaped. A collar (12) is rotatably connected to the surface of the rotating shaft (20), and the end of the connecting rod (8) is fixedly connected to the collar (12).

3. A longline sea cucumber culture facility according to claim 2, characterized in that: The surface of the breeding cage (6) is provided with a guide rail (9), and the surface of the telescopic plate (25) is fixedly connected with a connecting block (15), and the connecting block (15) is in an "L" shape. The short arm end of the connecting block (15) passes through the guide rail (9) for sliding connection, and the long arm end of the connecting block is fixedly connected with a scraper (23), and the surface of the scraper (23) is provided with an inclined surface (16).

4. The longline sea cucumber culture facility according to claim 3, characterized in that: The side wall of the breeding cage (6) is provided with a chute (18), and the surface of the connecting block (15) is fixedly connected with a baffle (17), and the baffle (17) is slidably connected in the chute (18).

5. A longline sea cucumber culture method, which adopts the longline sea cucumber culture facility according to claim 4, characterized in that: The following steps are involved: S1: The A-type counterweight (2) is used to ballast the main stem rope (7) to reserve the part for the rope hoisting operation. The length of the hanging rope of the B-type counterweight (3) is set to 1m, so as to keep the main stem rope (7) at a position 1m from the seabed. A longline sea cucumber aquaculture facility is equipped with two buoys (4); S2: The specific value of the buoyancy of the small float (5) is calculated according to the specifications of the culture cage (6). The calculation formula is: small float (5) buoyancy = (gravity of culture cage (6) + gravity of cultured object + gravity of float + gravity of attached organisms) * 1.2, where the above gravity refers to the gravity in seawater; S3: The two ends of the main stem rope (7) are tied to the two anchor stones (1). The length of the main stem rope includes two parts. The first part is the mounting part located between the two position floats (4), and the second part is the attachment part between the position floats (4) and the anchor stones (1). S4: A position buoy is mounted on each end of the mounting portion of the main stem rope (7) through a connecting branch rope, and breeding cages (6) are mounted at equal intervals on the mounting portion. A type counterweight (3) is mounted between two connected breeding cages (6). In the auxiliary portion of the main stem rope (7), the 2 / 3 portion close to the anchor stone (1) is mounted with a type A counterweight (2) at a spacing of 2m, and the other 1 / 3 portion is mounted with a type B counterweight (3) at a spacing of 1m.

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