CN113057147B - Lobster fishing device - Google Patents
Lobster fishing device Download PDFInfo
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- CN113057147B CN113057147B CN202110363121.2A CN202110363121A CN113057147B CN 113057147 B CN113057147 B CN 113057147B CN 202110363121 A CN202110363121 A CN 202110363121A CN 113057147 B CN113057147 B CN 113057147B
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- ground
- lobster
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- 241000238565 lobster Species 0.000 title claims abstract description 44
- 241000238557 Decapoda Species 0.000 claims abstract description 124
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 6
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 description 27
- 238000000926 separation method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 241000238017 Astacoidea Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006213 oxygenation reaction Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 244000058871 Echinochloa crus-galli Species 0.000 description 2
- 240000001931 Ludwigia octovalvis Species 0.000 description 2
- 235000015225 Panicum colonum Nutrition 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000238073 Homarus gammarus Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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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
- A01K69/00—Stationary catching devices
- A01K69/06—Traps
- A01K69/08—Rigid traps, e.g. lobster pots
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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)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention discloses a lobster catching device, which relates to the technical field of aquatic product catching tools and comprises at least one ground cage, a frame, net cages and first inverted beards, wherein the periphery of the frame is provided with first through holes corresponding to the number of the ground cages, the open ends of the ground cages are connected to the first through holes, the net cages are detachably connected in the frame, the periphery of the net cages is provided with second through holes butted with the open ends, the first inverted beards are arranged in the second through holes, and the first inverted beards allow the lobsters to pass through only from the ground cages to the net cages. When the lobster is caught, the lobster enters the ground cage and climbs into the net cage from the ground cage, the first inverted hook enables the lobster to be unable to return to the ground cage and remain in the net cage, and as the net cage is detachably connected with the frame, the lobster is only required to be taken out from the frame and poured into the collecting cylinder and then placed back into the frame when being caught, the second through hole is in butt joint with the opening end of the ground cage, the whole process is simple and convenient to operate, the ground cage is not required to be retracted again, and time and labor are saved.
Description
Technical Field
The invention relates to the technical field of aquatic fishing tools, in particular to a lobster fishing device.
Background
Lobster culture is an industry for artificially culturing and catching lobsters, and lobsters can be generally caught and sold after entering the trimester.
At present, three methods of hand net fishing, dry pool fishing and ground cage fishing are generally adopted for fishing the cultured lobsters, wherein the hand net fishing is to square a shrimp net Fang Zacheng, a hopper in a reverse cone shape is reserved below the hand net fishing, the hand net is continuously driven by a wood rod along the edge zone of a shrimp pond or a water grass cluster, so that the lobsters enter the net, the net crayfish can be left in the net after being lifted, and the fishing method is suitable for places with shallow water and dense crayfish, particularly for places with luxuriant water grass, the fishing effect is better, and the single efficiency is too low; the dry pond fishing is to drain water in the pond, so that crayfish is concentrated at the bottom of the pond, and the crayfish can be caught in a manual training mode, so that the crayfish is large in seedling injury, easy to drill grass and drill holes, and unsuitable for areas with large water area; ground cage fishing is the most commonly used and more effective fishing mode, and can be directly placed in a shrimp pond to catch shrimps, so that the ecology of the shrimp pond can be protected.
In the ground cage fishing mode in the prior art, the two ends of the ground cage are fixed every time when the ground cage is put down, one end of the ground cage needs to be lifted every time when the ground cage is collected, lobsters of the cage body are shaken to the other end of the ground cage and are concentrated, then ropes at the end parts are untied to pour the lobsters into a collected barrel or basin, then the ground cage is pricked at the end parts of the ground cage and the ground cage is placed again, and tens to hundreds of ground cages are needed for a shrimp pond, so that the work load is quite large, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a lobster catching device which aims to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a lobster fishing device, includes at least one ground cage, frame, box with a net and first whisker, wherein, frame week side is provided with corresponding ground cage quantity's first through-hole, ground cage's open end connect in first through-hole department, the box with a net detachably connect in the frame, the second through-hole with the open end butt joint has been seted up to the week side of box with a net, first whisker set up in the second through-hole, first whisker allows the direction that the lobster passed through only from ground cage to box with a net.
Further, the aperture size of the side face of the net cage can be adjusted.
Further, the ground cage comprises a cage body and a transition section connected with the cage body and the first through hole, and the transition section can be bent and folded.
Further, a height adjusting mechanism is provided at the bottom of the frame to adjust the height of the frame.
Further, a shielding part extending outwards is arranged at the top of the shrimp inlet of the ground cage.
Further, a handle is arranged on the net cage.
Further, the box with a net includes a caisson portion and a buoyancy tank portion connected to a top of the caisson portion, the buoyancy tank portion being capable of floating on a water surface.
Further, the net cage is divided into a whole shrimp box and a shrimp larva box through the isolation part, the second through holes are formed in the whole shrimp box, the isolation part is provided with second inverted whiskers extending into the shrimp larva box, the inlet of the second inverted whiskers is provided with a separation net, and the aperture of the separation net only allows shrimp larva to pass through.
Further, the number of the ground cages is two, and the ground cages are respectively arranged on two opposite sides of the frame.
Further, the number of the ground cages is four, and the ground cages are respectively arranged on four sides of the rectangular frame.
According to the lobster capturing device, when the lobsters enter the ground cage and climb into the net cage from the ground cage, the first inverted hook enables the lobsters to be unable to return to the ground cage and remain in the net cage, and as the net cage is detachably connected with the frame, the lobsters are only required to be taken out of the frame and poured into the collecting cylinder and then placed back into the frame when being captured, the second through hole is in butt joint with the opening end of the ground cage, the whole process is simple and convenient to operate, the ground cage is not required to be retracted again, and time and labor are saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure between a frame and two ground cages according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a cage according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a transition section structure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a connection structure between a cage and a frame according to an embodiment of the present invention;
FIG. 6 is a schematic view of a cage according to an embodiment of the present invention taken out of a frame;
FIG. 7 is a schematic diagram of caisson portion and floating net portion of a cage according to an embodiment of the present invention;
FIG. 8 is a top view of a shrimp seed box structure of a net cage according to an embodiment of the present invention;
fig. 9 is a schematic structural view of an abutting mechanism according to an embodiment of the present invention;
fig. 10 is a cross-sectional view of a structure when a second through hole is abutted with a first through hole according to an embodiment of the present invention.
Reference numerals illustrate:
1. a ground cage; 1.1, a transition section; 1.2, screening; 1.3, a shielding part; 2. a frame; 2.1, a first through hole; 3. a cage; 3.1, a second through hole; 3.2, caisson parts; 3.3, a buoyancy tank part; 3.31, a net neck; 3.32, buoyancy blocks; 3.33, a water tank part; 3.4, a whole shrimp box; 3.5, a shrimp seed box; 4. a first inverted whisker; 5. a height adjusting mechanism; 5.1, a base; 5.2, supporting rods; 5.3, a sliding part; 5.4, fastening bolts; 6. a handle; 7. a sloping plate; 8. a second inverted whisker; 9. an isolation part; 10. a screen; 11. an abutment mechanism; 10.1, a fixed ring; 10.2, sliding ring; 10.3, a fixing part; 10.4, a compression spring.
Description of the embodiments
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-10, the lobster capturing device provided by the embodiment of the invention includes at least one ground cage 1, a frame 2, a net cage 3 and a first inverted whisker 4, wherein the periphery of the frame 2 is provided with first through holes 2.1 corresponding to the number of the ground cages 1, the open ends of the ground cages 1 are connected to the first through holes 2.1, the net cage 3 is detachably connected in the frame 2, the periphery of the net cage 3 is provided with second through holes 3.1 butted with the open ends, the first inverted whisker 4 is arranged in the second through holes 3.1, and the direction in which the lobsters are allowed to pass through the first inverted whisker 4 is only from the ground cage 1 to the net cage 3.
Specifically, the net cage 3 comprises a hard framework and a woven net surrounding the hard framework, the woven net exceeding the framework is reserved on the upper portion of the net cage 3, the net cage 3 can be sealed by directly tightening the reserved woven net through ropes, or a cover capable of opening and closing is arranged on the net cage 3, the cover and the net cage 3 can be connected through a zipper, and the cover is preferably arranged at the top of the net cage 3. The dimensions of the frame 2 are adapted to the dimensions of the cage 3, preferably the upper part of the frame 2 is completely open, the cage 3 can be inserted into the frame 2 from above, and the cage 3 can be removed from the frame 2. Of course, it is also possible that one side of the frame 2 is completely opened and the net cage 3 is laterally inserted into the frame 2 from the side of the frame 2, but this is troublesome with respect to the first mode mentioned above. When the net cage 3 is inserted into the frame 2, a large friction force exists between the woven net and the frame 2, so that the net cage 3 is very stable after being inserted into the frame 2, and the net cage 3 is not required to be additionally fixed with the frame 2. When the net cage 3 is inserted into the innermost part of the frame 2, for example, when the net cage 3 is inserted into the bottommost part of the frame 2 from top to bottom, the second through hole 3.1 on the net cage 3 is just butted with the first through hole 2.1 of the frame 2, that is, the second through hole 3.1 on the net cage 3 is just butted with the open end of the ground cage 1, and the height of the first through hole 2.1 is higher than the height of the cage body of the ground cage 1 according to the upward climbing habit of lobster preference. The first inverted beard 4 is of a hollow truncated cone-shaped structure, the periphery of the large-diameter end is connected with the periphery of the second through hole 3.1, the small-diameter end extends into the net cage 3 and is suspended, and the first inverted beard 4 has the function that lobsters can only enter the net cage 3 from the ground cage 1, but cannot return to the ground cage 1 from the net cage 3. After entering the ground cage 1 from the third inverted whisker on the ground cage 1, the lobsters cannot go out from the third inverted whisker of the ground cage 1, crawl in the ground cage 1, and finally enter the net cage 3 from the open end of the ground cage 1 through the first inverted whisker 4, so that the edges of the lobsters in the ground cage 1 are collected in the net cage 3. When the lobster catching device is placed in the shrimp pond, the lobster in the net cage 3 can breathe and oxygenation with gills on the water surface due to the fact that the net cage 3 is required to be exposed out of a part of the water surface, and the situation that the lobster is fully closed in the water for a long time and is lack of oxygen and die is avoided.
According to the lobster catching device provided by the invention, when the lobsters enter the ground cage 1 and climb into the net cage 3 from the ground cage 1, the first inverted beard 4 enables the lobsters to be unable to return to the ground cage 1 and remain in the net cage 3, and as the net cage 3 is detachably connected with the frame 2, the lobsters are only required to be taken out from the frame 2 and poured into the collecting cylinder when being collected, and then the net cage 3 is put back into the frame 2, so that the second through hole 3.1 is in butt joint with the opening end of the ground cage 1, the whole process is simple and convenient to operate, the ground cage 1 does not need to be retracted again, time and labor are saved, and the lobster catching device is especially suitable for being used in artificial shrimp ponds with higher lobster densities.
As a preferable technical scheme of the embodiment, two opposite sides of the upper part of the net cage 3 are respectively provided with a handle 6, and the net cage 3 can be more conveniently taken and placed through the handles 6.
According to the preferable technical scheme of the embodiment, the shielding part 1.3 extending outwards is arranged at the top of the shrimp inlet of the ground cage 1, the third inverted whisker is arranged at the shrimp inlet, and the shielding part 1.3 can prevent lobsters from climbing to the top of the outer side of the ground cage 1 along the arc-shaped third inverted whisker of the ground cage 1, so that the effect of promoting the lobsters to enter the ground cage 1 from the third inverted whisker is achieved.
In another embodiment provided by the invention, referring to fig. 3, the aperture size of the side surface of the net cage 3 is adjustable, specifically, generally adult shrimps (i.e. lobsters with bigger heads) cannot pass through the aperture smaller than 4.0cm, young shrimps cannot pass through the aperture smaller than 1.0cm, medium-sized lobsters between adult shrimps and young shrimps cannot pass through the aperture smaller than 2.4cm, the aperture of the net cage 3 is set to 3.5-4.0cm, generally only adult shrimps are detained in the net cage 3, and the lobsters with smaller heads and young shrimps can be directly drilled out from the mesh of the net cage 3, so that the adult shrimps can be caught in a targeted manner, and the large lobsters do not need to be caught together as the conventional cage 1 for picking and then selecting. Preferably, only the aperture of one or more sides of the net cage 3 is set to be 3.5-4.0cm, the aperture of the rest part is set to be less than 1.0cm or even not open (for facilitating rapid draining of water in the net cage 3 when the net cage 3 is taken out, and preferably open), a screening net is detachably connected to the side surface of the net cage 3 with the aperture of 3.5-4.0cm, for example, by means of a zipper, or one end of the screening net is hinged with the net cage 3, the other end of the screening net is movably connected with the net cage 3, the screening net can be unfolded to completely cover the side surface of the net cage 3 with the aperture of 3.5-4.0cm, and the screening net is folded or rolled up, so that the side surface of the net cage 3 with the aperture of 3.5-4.0cm is no longer shielded; when the aperture of the screening net is set to be 2.0-2.4cm, the shrimp larvae can pass through the screening net, adult shrimps and medium-sized lobsters between the adult shrimps and the shrimp larvae can not pass through the screening net, so that the net cage 3 can hold the adult shrimps and the medium-sized lobsters; when the aperture of the screening net is set to be less than 1cm or even not open, adult shrimps, medium-sized lobsters and shrimp fries cannot pass through the screening net, and the net cage 3 can collect the adult shrimps, medium-sized lobsters and shrimp fries at the same time.
In this embodiment, further, two screening nets are detachably connected to one side of the net cage 3 with a pore diameter of 3.5-4.0cm, wherein one screening net has a pore diameter of 2.0-2.4cm, and the other screening net has a pore diameter of less than 1.0cm or does not have pores, so that the screening nets can be selectively used according to the required lobster size.
In still another embodiment of the present invention, since the height of the first through hole 2.1 is higher than the height of the cage body of the ground cage 1, the ground cage 1 includes a cage body and a transition section, the transition section can be bent and folded for connecting the cage body and the first through hole 2.1, and the transition section 1.1 can solve the height difference between the cage body and the first through hole 2.1.
As a preferred technical solution of this embodiment, referring to fig. 4, the transition section 1.1 includes a screening section 1.2, that is, a section of the transition section 1.1 is a screening section 1.2, the aperture of the transition section 1.1 is consistent with the aperture of the cage body, and is smaller than 1cm, when the aperture of the screening section 1.2 is set to 2.0-2.4cm, adult shrimps and medium-sized lobsters between the adult shrimps and the young shrimps cannot pass through the mesh of the screening section 1.2, and young shrimps can drill from the mesh of the screening section 1.2 to the outside, so that part or even all of the young shrimps can be screened by the screening section 1.2; when the aperture of the screening section 1.2 is set to be 3.5-4.0cm, adult shrimps cannot pass through the mesh of the screening section 1.2, and shrimp larvae and medium-sized lobsters can drill from the mesh of the screening section 1.2 to the outside, so that part or even all of the shrimp larvae and medium-sized lobsters can be screened out by the screening section 1.2. When need not to sieve the lobster, directly with sieve section both ends hoop close together and fixed can, preferably, because the hoop possesses certain toughness, possesses certain elastic deformation's ability, only need detain the hoop of one of them end of screening section to the hoop inside of screening section other end can make two hoops fixed.
In this embodiment, further, the transition section 1.1 includes a first section and a second section connected, where the first section has a pore size of 2.0-2.4cm and the second section has a pore size of 3.5-4.0cm; when only shrimps are needed, the second section is unfolded; when only adult shrimps and lobsters with medium heads are needed, the iron hoops at the two ends of the second section are buckled together; when the lobster is not needed to be screened, only iron hoops at the two ends of the transition section 1.1 are needed to be buckled together.
In still another embodiment provided by the invention, according to different seasonal air temperatures and factors of lobster propagation and growth, the water level of the cultured shrimp pond can be manually interfered, for example, the temperature in summer is higher, the lobster propagation and growth are faster, the water level of the shrimp pond is generally kept at about 60-90cm, and the water level of the shrimp pond is generally kept at about 20-40cm in winter. Therefore, referring to fig. 6, the bottom of the frame 2 is provided with a height adjusting mechanism 5 to adjust the height of the frame 2 from the water bottom, so that the height of the net cage 3 can be adjusted according to different water levels, the top of the net cage 3 can be exposed out of the water surface, and the lobster in the net cage 3 can breathe to the water surface to realize oxygenation. Preferably, the height adjusting mechanism 5 comprises a base 5.1 and a supporting rod 5.2 arranged on the base 5.1, wherein the top of the supporting rod 5.2 is vertically and slidably connected to the frame 2, and the height adjusting mechanism further comprises a locking piece which can lock and fix the supporting rod 5.2 on the frame 2 and unlock the supporting rod 5.2 from the frame 2. Specifically, the bracing piece 5.2 top is provided with sliding part 5.3, like sliding ring or slider, frame 2 includes the montant, the sliding ring cover establish slide in on the montant, the locking piece including offer with the screw hole on the sliding ring and fastening bolt 5.4, fastening bolt 5.4 threaded connection is in threaded hole, supports tight montant through screwing in fastening bolt 5.4 to fix solid fixed ring 10.1 and montant, and then adjust the height of box with a net 3 in order to adapt to shrimp pond water level.
In a further embodiment of the invention, see fig. 7, the net cage 3 comprises a caisson part 3.2 and a buoyancy tank part 3.3 connected to the top of the caisson part 3.2, the buoyancy tank part 3.3 being capable of floating on the water surface. Preferably, the buoyancy tank portion 3.3 includes a net neck portion 3.31, a buoyancy block 3.32 and a water tank portion 3.33, wherein the bottom end of the net neck portion 3.31 is connected with the top of the caisson portion 3.2, the periphery of the top end of the net neck portion 3.31 is connected with the annular buoyancy block 3.32, the water tank portion 3.33 is connected to the buoyancy block 3.32, the net neck portion 3.31 is of an annular net structure capable of folding and stretching, the buoyancy block 3.32 can float on the water surface, the buoyancy of the buoyancy block 3.32 can enable the water tank portion 3.33 to be located above the water surface, the buoyancy tank portion 3.3 can automatically adapt to water level change, the water tank portion 3.33 can be always kept above the water surface, the lobster in the net tank 3 can breathe and oxygenation to the water surface, and particularly under the condition that the water level rises during raining, the net tank 3 does not need to be manually adjusted, so that the top of the net tank 3 is exposed on the water surface, and the use is very convenient.
As the preferable technical scheme of the embodiment, the buoyancy of the buoyancy block 3.32 is larger than the gravity of the net cage 3 and the friction between the net cage 3 and the frame 2, and the height adjusting mechanism 5 is fixed on the water bottom, for example, the height adjusting mechanism 5 is weighted or pressed by bricks, or a plug rod is arranged at the bottom of the height adjusting mechanism 5, and the plug rod is inserted into soil at the water bottom, so that the height adjusting mechanism 5 is fixed on the water bottom, and the buoyancy block 3.32 is made of foam materials or air bags. If the water level of the shrimp pond is rapidly increased due to the factors such as stormy weather, the water level is still increased even after the net neck 3.31 is completely stretched, and the buoyancy of the buoyancy block 3.32 can enable the net cage 3 to move upwards from the frame 2, so that the water tank part 3.33 is kept above the water surface all the time, the net cage 3 is prevented from being completely submerged, and the lobsters collected in the net cage 3 cannot be starved due to lack of oxygen.
As a preferable technical scheme of the embodiment, a detachable connecting structure is arranged between the buoyancy block 3.32 and the top of the caisson part 3.2, for example, a hook is arranged on the buoyancy block 3.32 and hooked on the caisson part 3.2 or tied together or clamped through a rope, so that the buoyancy block 3.32 and the water tank part 3.33 can be locked on the top of the caisson part 3.2 when shrimps are collected, and the net cage 3 can be taken out from the frame 2; meanwhile, when the water level of the shrimp pond is low, the upper part of the caisson part 3.2 is flush or exposed out of the water surface, the buoyancy block 3.32 and the water tank part 3.33 are locked to the top of the caisson part 3.2, so that the caisson part 3.2 and the buoyancy tank part 3.3 are formed into a relatively fixed whole, and the net cage 3 is convenient to take and place.
Further, under the condition that the water level of the shrimp pond is changed greatly due to season and climate, the height of the net cage 3 from the water bottom is adjusted preferentially through the height adjusting mechanism 5 with a large adjusting range, namely coarse adjustment, when the water level is changed slightly, the water level can be adapted to the change of the water level through the floating box part 3.3, namely fine adjustment, so that the water tank part 3.33 is kept above the water surface all the time, and the lobsters in the net cage 3 can breathe and oxygenation to the water surface.
In still another embodiment provided by the invention, the current method for collecting the shrimp larvae by the farmers is to catch all the lobsters with the sizes, then manually select the shrimp larvae individually for selling or culturing, so that the time and effort for selecting the shrimp larvae are very wasted, the large lobsters can interfere with the selection, and the situation of accidentally injuring the shrimp larvae often occurs in the selection process, so that the survival rate of the shrimp larvae after stocking is seriously affected. Therefore, referring to fig. 8, the net cage 3 is divided into a whole shrimp box 3.4 and a shrimp larva box 3.5 by a partition 9, the second through holes 3.1 are formed in the whole shrimp box 3.4, the partition 9 is provided with second inverted beards 8 extending into the shrimp larva box 3.5, namely, lobsters can only enter the shrimp larva box 3.5 from the whole shrimp box 3.4, the inlet of the second inverted beards 8 is provided with a separation net 10, the aperture of the separation net 10 only allows shrimp larvae to pass through, the aperture of the separation net 10 is set to be 2.0-2.4cm, and lobsters with medium heads cannot pass through the separation net 10. After all lobsters with the size of one head enter the whole shrimp box 3.4 from the ground cage 1, part or even all of the shrimp larvae pass through the separation net 10 and enter the shrimp larva box 3.5 from the second inverted beard 8, and the second inverted beard 8 enables the shrimp larvae not to return to the whole shrimp box 3.4, so that the shrimp larva box 3.5 can be used for collecting the shrimp larvae independently without sorting, and the shrimp larvae can be cultured or sold independently by a farmer conveniently and practically and conveniently.
In still another embodiment of the present invention, referring to fig. 8-10, the second through hole 3.1 is provided with an abutment mechanism on the periphery for opening the ground cage 1. Preferably, the abutting mechanism 11 includes a fixed ring 10.1, a sliding ring 10.2 and a plurality of elastic units, wherein the fixed ring 10.1 is embedded in the second through hole 3.1 and is coaxial with the second through hole 3.1, the sliding ring 10.2 is axially slidably arranged in the fixed ring 10.1, the first inverted whisker 4 is fixedly connected to the sliding ring 10.2, the elastic units drive the sliding ring 10.2 to axially slide towards the outside of the net cage 3 along the fixed ring 10.1 in the process of restoring the original shape, preferably, the elastic units include a fixed part 10.3 and a pressure spring 10.4, the fixed part 10.3 is fixedly connected to the fixed ring 10.1, the fixed part 10.3 is preferably L-shaped, two ends of the pressure spring 10.4 are respectively connected with the fixed part 10.3 and the sliding ring 10.2, the elastic force of the pressure spring 10.4 acts on the sliding ring 10.2 along the axial direction of the fixed ring 10.1, one end of the sliding ring 10.2, which is positioned at the inner side of the box, is provided with a limit bulge, and the fixed bulge and the fixed ring 10.1 can completely slide from the fixed ring 10.2 when being matched with the fixed ring 10.1; the abutting mechanism further comprises a sloping plate 7, the sloping plate 7 is arranged at the top of the frame 2 and is positioned above the first through hole 2.1, and the top of the sloping plate 7 inclines to the outer side of the frame 2. When the net cage 3 is inserted into the frame 2 from the upper side of the frame 2 downwards, the end of the sliding ring 10.2 which is abutted against the outer side of the net cage 3 due to the elastic force of the pressure spring 10.4 contacts the upper part of the inclined plate 7, and as the net cage 3 moves downwards, the sliding ring 10.2 moves inwards of the net cage 3 and compresses the pressure spring 10.4 until the net cage 3 is installed in place and the end face of the sliding ring 10.2 is abutted against the opening end of the ground cage 1 due to the elastic force of the spring. The arrangement of the abutting mechanism enables the second through hole 3.1 to be tightly abutted with the opening end of the ground cage 1, so that lobsters are prevented from escaping from gaps at the abutting joint of the second through hole 3.1 and the opening end, meanwhile, friction resistance between the net cage 3 and the frame 2 can be increased, the net cage 3 is placed in the frame 2 more stably, when the water level rises higher, the buoyancy block 3.32 still needs to be submerged after the net neck 3.31 is fully stretched, the friction resistance can prevent the situation that the whole cage 3 floats up due to the larger buoyancy of the buoyancy block 3.32 to cause the lobsters in the ground cage 1 to escape from the opening end, and at the moment, although the buoyancy block 3.32 is submerged, a part of the upper water box part 3.33 is still located above the water surface, so that the lobsters in the net cage 3 can breathe and oxygenation to the water surface conveniently.
In still another embodiment provided by the invention, preferably, two ground cages 1 are arranged on two opposite sides of the frame 2 respectively, namely, the lobster-catching device is in a straight shape as a whole, and for most of the shrimp ponds, a plurality of lobster-catching devices can be arranged in parallel at one time, so that the lobster-catching effect is good. According to the habit of digging holes on the bank according to the preference of lobsters, the lobster catching device is convenient to arrange along the bank of the lobster pond.
In still another embodiment provided by the invention, preferably, the number of the ground cages 1 is four, and the ground cages are respectively arranged on four sides of the rectangular frame 2, namely, the lobster fishing device is in a cross shape as a whole, and the fishing effect of the embodiment is better for a lobster pond with a larger water area. Furthermore, the frame 2 and the net cage 3 are both cylindrical, and the plurality of ground cages 1 distributed in a circumferential array are arranged on the periphery of the frame 2, namely, each ground cage 1 is radially distributed on the periphery of the frame 2, so that the embodiment can cover a circular water area which is formed by taking the frame 2 and the net cage 3 as the center and taking the length of the ground cage 1 as the radius, and the shrimp catching effect is very good.
In still another embodiment provided by the invention, preferably, the number of ground cages 1 is two, and the ground cages are respectively arranged on two adjacent side surfaces of the frame 2, namely, the lobster fishing device is L-shaped as a whole, and the lobster fishing device is mainly arranged at the corners of the shrimp pond aiming at a square shrimp pond because the lobster prefers to punch holes on the shore, so that the fishing effect is better. Of course, according to different angles of the shrimp pond corners, the angle formed between the two ground cages 1 in this embodiment can be adaptively changed.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (7)
1. A lobster fishing device comprising at least one ground cage, further comprising:
the periphery of the frame is provided with first through holes corresponding to the number of the ground cages, and the open ends of the ground cages are connected to the first through holes;
the net cage is detachably connected in the frame, and a second through hole in butt joint with the opening end is formed in the periphery of the net cage;
the first inverted beards are arranged at the second through holes, and the direction of allowing the lobsters to pass through is only from the ground cage to the net cage;
the ground cage comprises a cage body and a transition section for connecting the cage body and the first through hole, and the transition section can be bent and folded; the transition section comprises a first section and a second section which are connected, the aperture of the first section is set to be 2.0-2.4cm, and the aperture of the second section is set to be 3.5-4.0cm; when only shrimps are needed, the second section is unfolded; when only adult shrimps and lobsters with medium heads are needed, the iron hoops at the two ends of the second section are buckled together; when the lobster is not needed to be screened, only iron hoops at two ends of the transition section are needed to be buckled together;
the box with a net comprises a caisson part and a floating box part connected to the top of the caisson part, wherein the floating box part can float on the water surface; the buoyancy tank comprises a net neck, a buoyancy block and an upper water tank, wherein the bottom end of the net neck is connected with the top of the caisson, the periphery of the top end of the net neck is connected with the annular buoyancy block, the upper water tank is connected to the buoyancy block, the net neck is of a foldable and telescopic annular net structure, the buoyancy block can float on the water surface, and the buoyancy of the buoyancy block can enable the upper water tank to be positioned above the water surface; the buoyancy of the buoyancy block is larger than the gravity of the net cage and the friction between the net cage and the frame;
the elastic unit comprises a fixed part and a pressure spring, the fixed part is fixedly connected to the fixed ring, the fixed part is L-shaped, two ends of the pressure spring are respectively connected with the fixed part and the sliding ring, the elastic force of the pressure spring acts on the sliding ring along the axial direction of the fixed ring towards the outer side of the net cage, the elastic unit drives the sliding ring to slide along the axial direction of the fixed ring towards the outer side of the net cage in the process of restoring the original shape, one end of the sliding ring, which is positioned at the inner side of the box body, is provided with a limiting bulge which is matched with the fixed ring in a blocking way and can prevent the sliding ring from completely sliding out of the fixed ring; the butt mechanism further comprises a sloping plate, the sloping plate is arranged at the top of the frame and is positioned above the first through hole, the top of the sloping plate is inclined towards the outer side of the frame, when the net cage is inserted into the frame downwards from the upper side of the frame, the end part of the sliding ring which is propped towards the outer side of the net cage is contacted with the upper part of the sloping plate due to the elasticity of the pressure spring, along with the downward movement of the net cage, the sliding ring moves towards the inner side of the net cage and compresses the pressure spring until the net cage is installed in place, and the end face of the sliding ring is propped against the opening end of the ground cage due to the elasticity of the spring.
2. A lobster fishing device as claimed in claim 1 wherein the bottom of the frame is provided with a height adjustment mechanism to adjust the height of the frame.
3. The lobster fishing device of claim 1 wherein a shielding portion extending outwardly is provided at a top of the lobster inlet of the ground cage.
4. A lobster fishing device as claimed in claim 1 wherein the cage is provided with a handle.
5. The lobster fishing device of claim 1 wherein the net cage is divided into a whole-shrimp box and a young-shrimp box by a partition, the second through hole is formed in the whole-shrimp box, a second inverted whisker extending into the young-shrimp box is arranged on the partition, a partition net is arranged at an inlet of the second inverted whisker, and the aperture of the partition net only allows the young shrimps to pass through.
6. A lobster fishing device as claimed in claim 1 wherein there are two ground cages, one on each side of the frame opposite to the other.
7. A lobster fishing device as claimed in claim 1 wherein there are four ground cages each disposed on four sides of the rectangular frame.
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| CN202110363121.2A CN113057147B (en) | 2021-04-02 | 2021-04-02 | Lobster fishing device |
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| CN202110363121.2A CN113057147B (en) | 2021-04-02 | 2021-04-02 | Lobster fishing device |
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| CN113057147B true CN113057147B (en) | 2024-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114747548A (en) * | 2022-04-07 | 2022-07-15 | 中国科学院水生生物研究所 | Seedling catching type ground cage |
| CN115720878B (en) * | 2022-11-17 | 2023-09-08 | 中国水产科学研究院渔业机械仪器研究所 | Batch grading catching device for large-scale cage cultured fishes and using method |
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| CN204014807U (en) * | 2014-08-15 | 2014-12-17 | 中国科学院水生生物研究所 | Cage is fished in the classification of a kind of shell-fish aquatic livestock |
| CN107494369A (en) * | 2017-09-27 | 2017-12-22 | 山东省淡水渔业研究院（山东省淡水渔业监测中心） | A kind of biological floating island purification method used for aquiculture and device |
| CN206933061U (en) * | 2017-07-03 | 2018-01-30 | 芜湖盛典休闲生态园有限公司 | A kind of lobster catches cage |
| CN209017701U (en) * | 2018-09-23 | 2019-06-25 | 杨成胜 | A kind of shrimp crab fishing cage with buoyancy net bucket |
| CN212697276U (en) * | 2020-08-07 | 2021-03-16 | 熊钰 | Novel swift shrimp ware of getting |
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| CN204014807U (en) * | 2014-08-15 | 2014-12-17 | 中国科学院水生生物研究所 | Cage is fished in the classification of a kind of shell-fish aquatic livestock |
| CN206933061U (en) * | 2017-07-03 | 2018-01-30 | 芜湖盛典休闲生态园有限公司 | A kind of lobster catches cage |
| CN107494369A (en) * | 2017-09-27 | 2017-12-22 | 山东省淡水渔业研究院（山东省淡水渔业监测中心） | A kind of biological floating island purification method used for aquiculture and device |
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