CN112243904B - Combined cuttlefish egg attachment device - Google Patents
Combined cuttlefish egg attachment device Download PDFInfo
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- CN112243904B CN112243904B CN202010947501.6A CN202010947501A CN112243904B CN 112243904 B CN112243904 B CN 112243904B CN 202010947501 A CN202010947501 A CN 202010947501A CN 112243904 B CN112243904 B CN 112243904B
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- 241000238371 Sepiidae Species 0.000 title claims abstract description 113
- 235000013601 eggs Nutrition 0.000 claims abstract description 72
- 230000005484 gravity Effects 0.000 claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims description 45
- 230000007246 mechanism Effects 0.000 claims description 31
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 102000002322 Egg Proteins Human genes 0.000 claims description 3
- 108010000912 Egg Proteins Proteins 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 210000004681 ovum Anatomy 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000017448 oviposition Effects 0.000 abstract description 13
- 230000012447 hatching Effects 0.000 abstract description 12
- 230000018109 developmental process Effects 0.000 abstract description 6
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000004083 survival effect Effects 0.000 abstract description 3
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
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- 235000013305 food Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
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- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a combined cuttlefish egg attachment device, and aims to provide a device which can effectively protect cuttlefish eggs from being damaged by large marine organisms; and can effectively avoid a large amount of cuttlefish eggs from being stacked together under the condition that the cuttlefish oviposition is not influenced, so that a large amount of cuttlefish eggs wrapped in the middle are delayed in development and even rotten and dead, and the hatching survival rate is seriously reduced. The floating type net drum comprises a protection net drum, an opening at the upper end of the protection net drum and an upper baffle, wherein the upper baffle is positioned above the protection net drum, the edge of the upper baffle is connected with the protection net drum through a connecting rod, the buoyancy of the floating type net drum is greater than the gravity, the floating type net drum is positioned below the upper baffle, the floating type net drum is abutted against the surface of the upper baffle under the action of the buoyancy, and the floating type net drums are sequentially sleeved from inside to outside; the self-adaptive support structure corresponds to the floating net cylinders one by one.
Description
Technical Field
The invention relates to an attachment device, in particular to a combined cuttlefish egg attachment device.
Background
The cuttlefish needs to lay eggs on attachments, has high requirements on the attachments, and is generally selected to be firmer in fixation and smoother in surface. In the spawning site sea area, the gorgonia which is the main spawning attachment of the cuttlefish is not enough in quantity, the requirement of spawning of the parent cuttlefish can not be met, a plurality of fertilized eggs are attached to tender branch-shaped seaweeds, the fertilized eggs of the cuttlefish attached to the seaweeds are easy to fall off when encountering water flow impact, even the strings fall off, and once the fertilized eggs of the cuttlefish fall off, the fertilized eggs of the cuttlefish sink into the seabed sludge, the fertilized eggs of the cuttlefish are dead, the hatchability of the fertilized eggs of the cuttlefish is seriously reduced, and therefore, the repairing of the spawning attachment must be carried out synchronously while the proliferation and release work is strengthened.
Therefore, a large amount of artificial egg-attaching bases are applied to increase attachments for the oviposition of the cuttlefish, but the inventor finds that the number of eggs in each string of eggs when the cuttlefish lays eggs is extremely large, each string of eggs on the artificial egg-attaching bases can reach more than 500, even thousands of eggs, and a large amount of cuttlefish eggs are stacked together in the strings of the cuttlefish eggs with extremely large number, so that a large amount of cuttlefish eggs wrapped in the middle of the strings of the cuttlefish eggs are delayed in development, even rotten and dead, the hatching rate is seriously reduced, and serious obstacles are caused to the propagation of cuttlefish resources in natural sea areas.
In order to solve the problem, some inventors have improved the artificial egg-attaching base of the cuttlefish, for example, chinese patent publication No. CN110352881A, the name of the invention is an apparatus for artificially inducing the cuttlefish to spawn, and the application controls the number of eggs per string of the cuttlefish by disturbing the stop lever to drive the parent cuttlefish, so as to prevent a large number of cuttlefish eggs from being stacked together, and thus, not only will the parent cuttlefish who is spawning become surprised, but also the spawning efficiency of the parent cuttlefish is affected; moreover, the parent cuttlefish needs to continuously replace the spawning site (generally, the spawning amount of one parent cuttlefish reaches thousands), which affects the spawning efficiency of the parent cuttlefish; on the other hand, the number of eggs per string is also greatly reduced, so that the number demand of artificial egg-laying bases is sharply increased.
On the other hand, cuttlefish eggs in the hatching process are also easily damaged by large marine organisms, so that the hatching rate is further reduced; meanwhile, the hatched young cuttlefish is also easily predated by marine organisms.
Disclosure of Invention
The invention aims to provide a combined cuttlefish egg attachment device, which can effectively protect cuttlefish eggs from being damaged by large marine organisms; and can effectively avoid a large amount of cuttlefish eggs from being stacked together under the condition of not influencing the egg laying of the cuttlefish, so that a large amount of cuttlefish eggs wrapped in the middle are delayed in development and even rotten and dead, and the hatching survival rate is seriously reduced.
The technical scheme of the invention is as follows:
a modular cuttlefish egg attachment apparatus, comprising:
a protective net cylinder which is supported on the seabed and the upper end of which is opened,
an upper baffle plate which is positioned above the protective net cylinder, the edge of the upper baffle plate is connected with the protective net cylinder through a connecting rod,
the buoyancy of the floating net cylinders is larger than the gravity, the floating net cylinders are positioned below the upper baffle plate and are abutted against the surface of the upper baffle plate under the action of the buoyancy, the floating net cylinders are sequentially sleeved from inside to outside, and side wall net pieces of the floating net cylinders are woven by polyethylene ropes;
the self-adaptive support structure is in one-to-one correspondence with the floating net cylinders, the self-adaptive support structure comprises a plurality of rotating support mechanisms arranged at the bottoms of the outer side walls of the floating net cylinders, each rotating support mechanism comprises a limiting part arranged at the bottom of the outer side wall of each floating net cylinder and a floating support rod positioned below the limiting part, the buoyancy of each floating support rod is greater than the gravity, one end of each floating support rod is rotatably arranged at the bottom of the outer side wall of each floating net cylinder, one end of each floating support rod extends to the outer side of each floating net cylinder,
the floating support rod of the rotation support mechanism on the floating net drum at the outermost layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
in any two adjacent floating net cylinders, the floating support rods of the rotating support mechanisms on the inner floating net cylinder rotate upwards under the action of buoyancy and abut against the bottom edge of the outer floating net cylinder.
Preferably, the floating net cylinders are 4, the 4 floating net cylinders sequentially comprise an inner layer floating net cylinder, a secondary outer layer floating net cylinder and an outer layer floating net cylinder from inside to outside,
when the parent cuttlefish spawns on the floating net drum, the parent cuttlefish spawns on the side wall mesh sheet of the outer floating net drum, and when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the outer floating net drum and the gravity of the outer floating net drum is larger than the buoyancy of the outer floating net drum, the outer floating net drum sinks downwards and penetrates through the upper end opening of the protective net drum to enter the protective net drum until the outer floating net drum is supported on the inner bottom surface of the protective net drum through the bottom edge; at the moment, the floating support rod of the rotation support mechanism on the secondary outer layer floating net drum rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
then, parent cuttlefish spawns on the side wall mesh sheet of the secondary outer layer floating type mesh drum, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary outer layer floating type mesh drum and the gravity of the secondary outer layer floating type mesh drum is larger than the buoyancy of the secondary outer layer floating type mesh drum, the secondary outer layer floating type mesh drum sinks downwards and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary outer layer floating type mesh drum abuts against the upper end face of the outer layer floating type mesh drum through the floating type supporting rods on the secondary outer layer floating type mesh drum, so that the secondary outer layer floating type mesh drum is supported on the upper end face of the outer layer floating type mesh drum through the floating type supporting rods on the secondary outer layer floating type mesh drum; at the moment, the floating support rod of the rotation support mechanism on the floating net cylinder of the secondary inner layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
then, parent cuttlefish spawns on the side wall mesh sheet of the secondary inner layer floating mesh drum, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary inner layer floating mesh drum and the gravity of the secondary inner layer floating mesh drum is larger than the buoyancy of the secondary inner layer floating mesh drum, the secondary inner layer floating mesh drum sinks downwards and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary inner layer floating mesh drum abuts against the upper end face of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum, so that the secondary inner layer floating mesh drum is supported on the upper end face of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum; at the moment, the floating support rod of the rotating support mechanism on the inner floating net cylinder rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
and finally, enabling the parent cuttlefish to lay eggs on the side wall meshes of the inner floating net barrel, and when the sum of the gravity of cuttlefish eggs on the side wall meshes of the inner floating net barrel and the gravity of the inner floating net barrel is larger than the buoyancy of the inner floating net barrel, enabling the inner floating net barrel to sink and penetrate through the upper end opening of the protective net barrel to enter the protective net barrel until the inner floating net barrel abuts against the upper end face of the secondary inner floating net barrel through the floating support rods on the inner floating net barrel, so that the inner floating net barrel is supported on the upper end face of the secondary inner floating net barrel through the floating support rods on the inner floating net barrel.
Therefore, the egg laying amount of the parent cuttlefish on the side wall mesh piece of each floating mesh cylinder can be controlled by controlling the difference between the buoyancy and the gravity of the floating mesh cylinder, and when the egg laying amount of the parent cuttlefish on the side wall mesh piece of the floating mesh cylinder reaches a certain amount, the floating mesh cylinder sinks downwards and penetrates through the upper end opening of the protection mesh cylinder to enter the protection mesh cylinder; thereby avoiding the problems that a large number of cuttlefish eggs are stacked together, so that a large number of cuttlefish eggs wrapped in the cuttlefish eggs are slow in development and even rotten and dead, and the hatching rate is seriously reduced; meanwhile, the parent cuttlefish does not need to migrate the egg laying position and cannot be frightened to lay eggs, so that the egg laying efficiency of the parent cuttlefish cannot be influenced.
More importantly, due to the arrangement of the self-adaptive support structure, under the condition that the downward movement of the floating net cylinders is not influenced, after the outer floating net cylinder sinks, the floating support rods of the rotation support mechanisms on the adjacent inner floating net cylinders rotate upwards under the action of buoyancy and abut against the corresponding limiting parts, so that after the outer floating net cylinder, the secondary inner floating net cylinder and the inner floating net cylinder sink in sequence, the outer floating net cylinder, the secondary inner floating net cylinder and the inner floating net cylinder can be stacked in sequence from bottom to top through the floating support rods on the outer floating net cylinder, the problem that cuttlefish eggs between the two adjacent floating net cylinders are extruded and dropped or damaged due to the fact that the cuttlefish eggs are distributed too densely due to the fact that the cuttlefish eggs on the inner floating net cylinder are still distributed in sequence from inside to outside after the floating net cylinders sink is solved, and the hatching rate is lowered.
On the other hand, the protection net section of thick bamboo can also play the oviferous effect of protection cuttlefish, avoids the cuttlefish ovum not destroyed by medium and large-scale marine organism's effect, and simultaneously, the young cuttlefish of hatching can freely come in and go out through the mesh of cylinder mould to for the young cuttlefish provides the cover, play the effect of protection young cuttlefish.
Preferably, when the floating support rod of the rotating support mechanism rotates upwards under the action of buoyancy and abuts against the corresponding limiting member, the floating support rod is less than 10 degrees from the horizontal plane.
Preferably, the upper baffle plate is provided with a plurality of limiting sleeves, each limiting sleeve is sequentially sleeved from inside to outside, and one limiting sleeve is uniformly distributed between any two adjacent floating net cylinders.
Preferably, the rotary support mechanisms in the same adaptive support structure are uniformly distributed around the circumference of the corresponding floating net drum.
Preferably, the floating net cylinder is positioned above the protective net cylinder when the floating net cylinder is pressed against the surface of the upper baffle under the action of buoyancy.
Preferably, the floating net drum comprises a net drum framework and a side wall net piece surrounding the side wall of the net drum framework, and the net drum framework consists of a hollow upper floating ring, a hollow lower floating ring and a plurality of connecting vertical rods for connecting the hollow upper floating ring and the hollow lower floating ring.
Preferably, the protective net cylinder is a metal net cylinder.
The invention has the beneficial effects that: not only can protect the cuttlefish eggs from being damaged by large marine organisms effectively; and can effectively avoid a large amount of cuttlefish eggs from being stacked together under the condition of not influencing the egg laying of the cuttlefish, so that a large amount of cuttlefish eggs wrapped in the middle are delayed in development and even rotten and dead, and the hatching survival rate is seriously reduced.
Drawings
Fig. 1 is a schematic structural view of the combined cuttlefish egg attachment device of the present invention.
Fig. 2 is a partial enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural view of the combined cuttlefish egg attachment device of the present invention in actual use.
In the figure:
a protective net cylinder 1;
an upper baffle 2 and a limiting sleeve 2.1;
an outer layer floating net cylinder 4a, a secondary outer layer floating net cylinder 4b, a secondary inner layer floating net cylinder 4c, an inner layer floating net cylinder 4d, a hollow floating ring 4.1, a hollow lower floating ring 4.2, a connecting vertical rod 4.3 and a side wall net piece 4.4;
the device comprises a rotary supporting mechanism 5, a limiting piece 5.1 and a floating supporting rod 5.2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 and 2, a combined cuttlefish egg attachment device includes: the device comprises a protective net cylinder 1, an upper baffle 2, a plurality of floating net cylinders and a plurality of self-adaptive supporting structures.
The protective net cylinder 1 is supported on the seabed, and the upper end of the protective net cylinder is opened. In this embodiment, the protective mesh cylinder is a metal mesh cylinder.
The upper baffle 2 is positioned above the protective net cylinder, and the edge of the upper baffle is connected with the protective net cylinder through a connecting rod 3. In this embodiment, the upper baffle is a mesh plate. The upper baffle plate is provided with a plurality of limiting sleeves 2.1, and the limiting sleeves are sequentially sleeved from inside to outside.
The buoyancy of the floating net cylinder is larger than the gravity. The floating net cylinder is positioned below the upper baffle, the floating net cylinder is propped against the surface of the upper baffle under the action of buoyancy, and when the floating net cylinder is propped against the surface of the upper baffle under the action of buoyancy, the floating net cylinder is positioned above the protective net cylinder. Each floating type net cylinder is sequentially sleeved from inside to outside, and a limiting sleeve is uniformly distributed between any two adjacent floating type net cylinders. In this embodiment, the number of the floating net cylinders is 4, and the 4 floating net cylinders are an inner layer floating net cylinder 4d, a secondary inner layer floating net cylinder 4c, a secondary outer layer floating net cylinder 4b and an outer layer floating net cylinder 4a from inside to outside in sequence.
The side wall net sheet of the floating net cylinder is woven by polyethylene ropes. In this embodiment, the floating net drum comprises a net drum framework and a side wall net piece 4.4 surrounding the side wall of the net drum framework. The net drum framework consists of a hollow upper floating ring 4.1, a hollow lower floating ring 4.2 and a plurality of connecting vertical rods 4.3 for connecting the hollow upper floating ring and the hollow lower floating ring. When the combined cuttlefish egg attachment device is actually put in, the floating net cylinder can be adhered to the lower surface of the upper baffle plate through glue (such as food glue) dissolved in water, and after the combined cuttlefish egg attachment device sinks to the seabed, the glue is dissolved by the water.
As shown in fig. 2, the adaptive support structures correspond to the floating net drums one to one. The self-adaptive support structure comprises a plurality of rotary support mechanisms 5 arranged at the bottom of the outer side wall of the floating net drum. In this embodiment, the rotation support mechanisms in the same adaptive support structure are uniformly distributed around the circumference of the corresponding floating net drum. The rotation supporting mechanism comprises a limiting piece 5.1 arranged at the bottom of the outer side wall of the floating net cylinder and a floating support rod 5.2 positioned below the limiting piece. The buoyancy of the floating support rod is larger than the gravity, one end of the floating support rod is rotatably arranged at the bottom of the outer side wall of the floating net cylinder, and one end of the floating support rod extends to the outer side of the floating net cylinder.
The floating support rod of the rotation support mechanism on the floating net drum at the outermost layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
in any two adjacent floating net cylinders, the floating support rods of the rotating support mechanisms on the inner floating net cylinder rotate upwards under the action of buoyancy and abut against the bottom edge of the outer floating net cylinder.
When the floating support rod of the rotation support mechanism rotates upwards under the action of buoyancy and abuts against the corresponding limiting part, the angle between the floating support rod and the horizontal plane is less than 10 degrees, and specifically, when the floating support rod of the rotation support mechanism rotates upwards under the action of buoyancy and abuts against the corresponding limiting part, the floating support rod is horizontally distributed.
When the parent cuttlefish spawns on the floating net drum, the parent cuttlefish spawns on the side wall mesh sheet of the outer floating net drum 4a, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the outer floating net drum and the gravity of the outer floating net drum is larger than the buoyancy of the outer floating net drum, the outer floating net drum sinks down and passes through the upper end opening of the protective net drum to enter the protective net drum until the outer floating net drum is supported on the inner bottom surface of the protective net drum through the bottom edge, as shown in fig. 3; at the moment, the floating support rod of the rotation support mechanism on the secondary outer layer floating net drum rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
next, the parent cuttlefish spawns on the side wall mesh sheet of the secondary outer layer floating mesh drum 4b, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary outer layer floating mesh drum and the gravity of the secondary outer layer floating mesh drum is larger than the buoyancy of the secondary outer layer floating mesh drum, the secondary outer layer floating mesh drum sinks downwards and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary outer layer floating mesh drum abuts against the upper end surface of the outer layer floating mesh drum through each floating support rod on the secondary outer layer floating mesh drum, so that the secondary outer layer floating mesh drum is supported on the upper end surface of the outer layer floating mesh drum through each floating support rod on the secondary outer layer floating mesh drum, as shown in fig. 3; at the moment, the floating support rod of the rotation support mechanism on the floating net cylinder of the secondary inner layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
next, the parent cuttlefish spawns on the side wall mesh sheet of the secondary inner layer floating mesh drum 4c, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary inner layer floating mesh drum and the gravity of the secondary inner layer floating mesh drum is larger than the buoyancy of the secondary inner layer floating mesh drum, the secondary inner layer floating mesh drum sinks down and passes through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary inner layer floating mesh drum abuts against the upper end surface of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum, so that the secondary inner layer floating mesh drum is supported on the upper end surface of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum, as shown in fig. 3; at the moment, the floating support rod of the rotating support mechanism on the inner floating net cylinder rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
finally, the parent cuttlefish spawns on the side wall mesh sheet of the inner floating mesh drum 4d, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the inner floating mesh drum and the gravity of the inner floating mesh drum is larger than the buoyancy of the inner floating mesh drum, the inner floating mesh drum sinks down and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the inner floating mesh drum abuts against the upper end face of the secondary inner floating mesh drum through the floating support rods on the inner floating mesh drum, so that the inner floating mesh drum is supported on the upper end face of the secondary inner floating mesh drum through the floating support rods on the inner floating mesh drum, as shown in fig. 3.
Therefore, the egg laying amount of the parent cuttlefish on the side wall mesh piece of each floating mesh cylinder can be controlled by controlling the difference between the buoyancy and the gravity of the floating mesh cylinder, and when the egg laying amount of the parent cuttlefish on the side wall mesh piece of the floating mesh cylinder reaches a certain amount, the floating mesh cylinder sinks downwards and penetrates through the upper end opening of the protection mesh cylinder to enter the protection mesh cylinder; thereby avoiding the problems that a large number of cuttlefish eggs are stacked together, so that a large number of cuttlefish eggs wrapped in the cuttlefish eggs are slow in development and even rotten and dead, and the hatching rate is seriously reduced; meanwhile, the parent cuttlefish does not need to migrate the egg laying position and cannot be frightened to lay eggs, so that the egg laying efficiency of the parent cuttlefish cannot be influenced.
More importantly, due to the arrangement of the self-adaptive support structure, under the condition that the downward movement of the floating net cylinders is not influenced, after the outer floating net cylinder sinks, the floating support rods of the rotation support mechanisms on the adjacent inner floating net cylinders rotate upwards under the action of buoyancy and abut against the corresponding limiting parts, so that after the outer floating net cylinder, the secondary inner floating net cylinder and the inner floating net cylinder sink in sequence, the outer floating net cylinder, the secondary inner floating net cylinder and the inner floating net cylinder can be stacked in sequence from bottom to top through the floating support rods on the outer floating net cylinder, the problem that cuttlefish eggs between the two adjacent floating net cylinders are extruded and dropped or damaged due to the fact that the cuttlefish eggs are distributed too densely due to the fact that the cuttlefish eggs on the inner floating net cylinder are still distributed in sequence from inside to outside after the floating net cylinders sink is solved, and the hatching rate is lowered.
On the other hand, the protection net section of thick bamboo can also play the oviferous effect of protection cuttlefish, avoids the cuttlefish ovum not destroyed by medium and large-scale marine organism's effect, and simultaneously, the young cuttlefish of hatching can freely come in and go out through the mesh of cylinder mould to for the young cuttlefish provides the cover, play the effect of protection young cuttlefish.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a modular cuttlefish ovum anchorage device which characterized by includes:
a protective net cylinder which is supported on the seabed and the upper end of which is opened,
an upper baffle plate which is positioned above the protective net cylinder, the edge of the upper baffle plate is connected with the protective net cylinder through a connecting rod,
the buoyancy of the floating net cylinders is larger than the gravity, the floating net cylinders are positioned below the upper baffle plate and are abutted against the surface of the upper baffle plate under the action of the buoyancy, the floating net cylinders are sequentially sleeved from inside to outside, and side wall net pieces of the floating net cylinders are woven by polyethylene ropes;
the self-adaptive support structure is in one-to-one correspondence with the floating net cylinders, the self-adaptive support structure comprises a plurality of rotating support mechanisms arranged at the bottoms of the outer side walls of the floating net cylinders, each rotating support mechanism comprises a limiting part arranged at the bottom of the outer side wall of each floating net cylinder and a floating support rod positioned below the limiting part, the buoyancy of each floating support rod is greater than the gravity, one end of each floating support rod is rotatably arranged at the bottom of the outer side wall of each floating net cylinder, one end of each floating support rod extends to the outer side of each floating net cylinder,
the floating support rod of the rotation support mechanism on the floating net drum at the outermost layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
the floating net drum comprises a net drum framework and a side wall net piece surrounding the side wall of the net drum framework, and the net drum framework consists of a hollow upper floating ring, a hollow lower floating ring and a plurality of connecting vertical rods for connecting the hollow upper floating ring and the hollow lower floating ring;
in any two adjacent floating net cylinders, the floating support rods of the rotating support mechanisms on the inner floating net cylinder rotate upwards under the action of buoyancy and abut against the bottom edge of the outer floating net cylinder.
2. The combined cuttlefish egg attachment device of claim 1, wherein the number of the floating net cylinders is 4, and the 4 floating net cylinders are an inner layer floating net cylinder, a second outer layer floating net cylinder and an outer layer floating net cylinder in sequence from inside to outside,
when the parent cuttlefish spawns on the floating net drum, the parent cuttlefish spawns on the side wall mesh sheet of the outer floating net drum, and when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the outer floating net drum and the gravity of the outer floating net drum is larger than the buoyancy of the outer floating net drum, the outer floating net drum sinks downwards and penetrates through the upper end opening of the protective net drum to enter the protective net drum until the outer floating net drum is supported on the inner bottom surface of the protective net drum through the bottom edge; at the moment, the floating support rod of the rotation support mechanism on the secondary outer layer floating net drum rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
then, parent cuttlefish spawns on the side wall mesh sheet of the secondary outer layer floating type mesh drum, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary outer layer floating type mesh drum and the gravity of the secondary outer layer floating type mesh drum is larger than the buoyancy of the secondary outer layer floating type mesh drum, the secondary outer layer floating type mesh drum sinks downwards and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary outer layer floating type mesh drum abuts against the upper end face of the outer layer floating type mesh drum through the floating type supporting rods on the secondary outer layer floating type mesh drum, so that the secondary outer layer floating type mesh drum is supported on the upper end face of the outer layer floating type mesh drum through the floating type supporting rods on the secondary outer layer floating type mesh drum; at the moment, the floating support rod of the rotation support mechanism on the floating net cylinder of the secondary inner layer rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
then, parent cuttlefish spawns on the side wall mesh sheet of the secondary inner layer floating mesh drum, when the sum of the gravity of cuttlefish eggs on the side wall mesh sheet of the secondary inner layer floating mesh drum and the gravity of the secondary inner layer floating mesh drum is larger than the buoyancy of the secondary inner layer floating mesh drum, the secondary inner layer floating mesh drum sinks downwards and penetrates through the upper end opening of the protective mesh drum to enter the protective mesh drum until the secondary inner layer floating mesh drum abuts against the upper end face of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum, so that the secondary inner layer floating mesh drum is supported on the upper end face of the secondary outer layer floating mesh drum through each floating support rod on the secondary inner layer floating mesh drum; at the moment, the floating support rod of the rotating support mechanism on the inner floating net cylinder rotates upwards under the action of buoyancy and abuts against the corresponding limiting piece;
and finally, enabling the parent cuttlefish to lay eggs on the side wall meshes of the inner floating net barrel, and when the sum of the gravity of cuttlefish eggs on the side wall meshes of the inner floating net barrel and the gravity of the inner floating net barrel is larger than the buoyancy of the inner floating net barrel, enabling the inner floating net barrel to sink and penetrate through the upper end opening of the protective net barrel to enter the protective net barrel until the inner floating net barrel abuts against the upper end face of the secondary inner floating net barrel through the floating support rods on the inner floating net barrel, so that the inner floating net barrel is supported on the upper end face of the secondary inner floating net barrel through the floating support rods on the inner floating net barrel.
3. The apparatus as claimed in claim 1 or 2, wherein when the floating support rod of the rotation support mechanism is rotated upward by buoyancy and abuts against the corresponding stopper, an angle between the floating support rod and a horizontal plane is less than 10 °.
4. The combined cuttlefish egg attachment device as claimed in claim 1 or 2, wherein the upper baffle is provided with a plurality of position-limiting sleeves, each position-limiting sleeve is sequentially sleeved from inside to outside, and one position-limiting sleeve is distributed between any two adjacent floating net cylinders.
5. The modular cuttlefish egg attachment device of claim 1 or 2, wherein the rotary support mechanisms of the same adaptive support structure are evenly distributed around the circumference of the corresponding floating net drum.
6. The modular cuttlefish egg attachment apparatus of claim 1 or 2, wherein the floating net drum is located above the protective net drum when the floating net drum is pressed against the surface of the upper baffle by buoyancy.
7. The combined cuttlefish egg attachment device according to claim 1 or 2, wherein the protective mesh cylinder is a metal mesh cylinder.
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