CN109644916A - The folding method of deep water mesh cage - Google Patents
The folding method of deep water mesh cage Download PDFInfo
- Publication number
- CN109644916A CN109644916A CN201910032430.4A CN201910032430A CN109644916A CN 109644916 A CN109644916 A CN 109644916A CN 201910032430 A CN201910032430 A CN 201910032430A CN 109644916 A CN109644916 A CN 109644916A
- Authority
- CN
- China
- Prior art keywords
- deep water
- mesh cage
- water mesh
- coaster
- supervisor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
-
- 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
Abstract
The present invention provides a kind of folding methods of deep water mesh cage.A kind of folding method of deep water mesh cage includes arrangement launching ways: coaster is slidably set on slideway；The positioning of caisson: caisson is located on coaster；The installation of supervisor: supervisor is inserted into caisson respectively and is welded to connect；The installation of secondary piece: secondary piece is lifted in order and is mounted on supervisor above and is welded to connect；The spreading of supervisor: the remainder of supervisor is installed and is welded to connect；The installation of apical ring: apical ring is mounted on the supervisor that spreading is completed.The folding method of above-mentioned deep water mesh cage facilitates operation, can be easy to implement.
Description
Technical field
The present invention relates to ocean engineering, especially a kind of folding method of deep water mesh cage.
Background technique
Since the 1980s, due to there is the problems such as worldwide excessive amount of fishing and environmental pollution, fishery
There is slump of disastrous proportions in resource.For this purpose, the emphasis of fishery industry is turned to pasture mode by traditional hunting formula fishing fishery
Aquaculture fishery, ecology, intelligence, high efficiency novel pasture mode represent future fisheries development trend, be building " blue
The important channel of silo ", while cultivation platform and aquaculture net cage are relied on, extend travel industry chain, carries out offshore recreational fishing.
Deep water mesh cage is as a kind of industry, to the current Fishery Resource Exhaustion of alleviation.It reduces because of 200 nautical miles of exclusive economy
The negative effects such as loss caused by area fishing ground is demarcated；It changes the line of production to fishing fisherman, cultivation fisherman's increased income has positive effect and again
Want meaning.For deep water mesh cage compared with traditional small-sized net cage, the volume of deep water mesh cage is larger.
When to deep water mesh cage to be lauched, be limited to plant area's arrangement and place crane capacity, the track of gantry crane away from
Being lauched bank has certain distance；And because net cage overall weight is big, integral hoisting cannot be carried out as lifting common body section
It is mobile, it cannot achieve and be lauched closing up for large volume of deep water mesh cage.
Summary of the invention
The purpose of the present invention is to provide the folding methods for the deep water mesh cage that one kind can be easy to implement.
A kind of folding method of deep water mesh cage, comprising:
Arrange launching ways: coaster is slidably set on slideway；
The positioning of caisson: caisson is located on coaster；
The installation of supervisor: supervisor is inserted into caisson respectively and is welded to connect；
The installation of secondary piece: secondary piece is lifted in order and is mounted on supervisor above and is welded to connect；
The spreading of supervisor: the remainder of supervisor is installed and is welded to connect；
The installation of apical ring: apical ring is mounted on the supervisor that spreading is completed.
In a wherein embodiment, the step of arrangement launching ways further includes that support is arranged on the coaster
Structure, the support construction are fixedly connected with the coaster.
In a wherein embodiment, the step of arrangement launching ways further includes being arranged in the support construction
Sleeper keeps multiple caissons in the same plane by adjusting sleeper.
In a wherein embodiment, the positioning of the caisson further includes between the caisson and the support construction
Diagonal brace is set, and the both ends of the diagonal brace are fixedly connected with the caisson and the support construction respectively.
It in a wherein embodiment, further include being lauched step, winch pulls the coaster, and the coaster is under described
Water slide sliding, makes on the deep water mesh cage sliding launch to barge.
It is described to be lauched step in a wherein embodiment, it further include being provided with and hanging in the two sides of the support construction
Ear, the winch are connect by the lifting lug with the coaster.
In a wherein embodiment, the step of the installation of the apical ring, further include, etting is installed.
It further include installation support column in a wherein embodiment: to fixed between supratrochlear secondary piece and the coaster
Support column is set, to support the secondary piece.
In a wherein embodiment, the step of the installation support column, further include, at front, the middle part of the secondary piece
And the support column is fixedly installed in rear portion respectively.
It in a wherein embodiment, further include the installation of accommodation platform and workbench: accommodation platform and work is flat
Platform lifting is mounted on the apical ring.
The folding method of above-mentioned deep water mesh cage can enable caisson that can smoothly slide along slideway to move by coaster.
Also, caisson sliding is to drive entire deep water mesh cage to slide.Slideway is extended into lower waterfront from the construction plant area of deep water mesh cage
Side position avoids lifting whole deep water mesh cage using gantry crane, easy to operate, is easy to implement closing up for deep water mesh cage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the deep water mesh cage of present embodiment；
Fig. 2 is the flow chart of the folding method of the deep water mesh cage of present embodiment；
Fig. 3 is the specific flow chart according to the step S11 of folding method shown in Fig. 2；
Fig. 4 is the schematic diagram according to step S11, S12 of folding method shown in Fig. 2；
Fig. 5 is the structural schematic diagram according to the slideway arrangement in folding method shown in Fig. 2；
Fig. 6 is the schematic diagram according to the step S13 of folding method shown in Fig. 2；
Fig. 7 is the schematic diagram according to the step S14 of folding method shown in Fig. 2；
Fig. 8 is the schematic diagram according to the step S15 of folding method shown in Fig. 2；
Fig. 9 is the schematic diagram according to the step S16 of folding method shown in Fig. 2；
Figure 10 is the flow diagram of the increase step of the folding method of another embodiment；
Figure 11 is the schematic diagram according to the step S17 of folding method shown in Fig. 10；
Figure 12 is the schematic diagram according to the step S18 of folding method shown in Fig. 10；
Figure 13 is the partial enlarged view according to part A in Figure 12.
The reference numerals are as follows: 11, cabinet；110, caisson；111, it is responsible for；112, secondary piece；1120, bottom frame；1121,
One diagonal brace；1122, the second diagonal brace；113, apical ring；1130, top frame；1131, top boom；1132, lower boom；1133, web member；
131, accommodation platform；132, workbench；21, slideway；22, coaster；23, support construction；24, sleeper；241, upper sleeper；242,
Lower sleeper；243, lifting lug；25, connecting rod；26, support column.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein
Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.
The disclosure provides a kind of folding method of deep water mesh cage.Deep water mesh cage is used for fishery cultivating.The specifically institute in disclosure
The deep water mesh cage being related to is the relatively large deep-sea culture net cage of volume.The deep water mesh cage of the disclosure includes cabinet 11, etting and behaviour
Make platform 13.Etting is connect with cabinet 11.Etting can be coated on the inside of cabinet 11.Etting makes cabinet 11 cross a cultivation
Region is to be cultivated.
Cabinet 11 is a frame support structure.Cabinet 11 is metal framework, and intensity with higher guarantees that net cage can be held
By the impact of certain stormy waves.Cabinet 11 can be steel construction etc..
Cabinet 11 includes the caisson 110 at the base angle, and the vertical supervisor 111 on caisson 110, to be connected to two adjacent
Supervisor 111 between secondary piece 112, be connected to be responsible for 111 top apical ring 113.
Caisson 110 supports entire deep water mesh cage for being seated sea bed.The intensity of caisson 110 is higher, has stronger
Bearing capacity.
Supervisor 111 is steel pipe.Supervisor 111 can be four, the six roots of sensation and eight etc..More supervisors 111 are distributed in a ring.This
In embodiment, cabinet 11 is rectangle, including four 110, four, caisson supervisors 111.Folding method provided by the disclosure, it is right
The shape of cabinet 11 is without limitation.Cabinet 11 can be cylindrical box, square box, polygonal bins etc..
111 points of supervisor are multiple segments, pass through welded connecting between every segment.Supervisor 111 preferentially selects hollow circular section
Steel pipe also can according to need and select hollow square section steel pipe.
Secondary piece 112 is in isosceles triangle.Secondary piece 112 includes the bottom frame 1120 positioned at the bottom edge of isosceles triangle, and is located at
First diagonal brace 1121 of two waist positions of isosceles triangle.Also, secondary piece 112 is additionally provided between bottom frame and the first diagonal brace 1121
Second diagonal brace 1122.
In other embodiments, secondary piece 112 is also provided with the distressed structures such as other inclined support structures, to enhance time piece
112 intensity, herein without limitation.
The both ends of bottom frame 1120 by being fixedly connected with caisson 110 by secondary piece 112 respectively.
Apical ring 113 includes multiple top frames 1130.Multiple top frames 1130 are realized by supervisor 111 and are connected with each other, and are spliced into
One ring structure, i.e. apical ring 113.Both ends of the both ends of top frame 1130 respectively with supervisor 111 are welded and fixed.
Top frame is truss structure.Each top frame includes top boom 1131, lower boom 1132 and web member 1133, and web member 1133 inclines
Bearing diagonal is between top boom 1131 and lower boom 1132.Web member 1133 enhances strong between top boom 1131 and lower boom 1132
Degree, makes the enhanced strength of upper support structure 113, can preferably undertake weight.Top boom 1131, lower boom 1132 and web member
1133 can select circular section steel pipe, also can according to need and select square section steel pipe.
Also, apical ring 113 is also used to the berthing of the ships such as storeship, fish buying boat.Specifically, top boom 1131, lower boom
1132 and the determining for size, plate thickness, spacing etc. of web member 1133 need, first have to meet intensity requirement, it is secondary to meet berthing
Ship length requirement.The bollard or eye plate for mooring are provided on the web member 1133 of upper support structure 113.Heaving pile
The number and position of stake or eye plate need to be determined according to type, length dimension by mooring a boat etc..
Operating platform 13 is set on apical ring 113.Operating platform 13 may include accommodation platform 131 and workbench 132.It is raw
Platform 131 and workbench 132 living are diagonally set on apical ring 113 respectively.
Life building is disposed on accommodation platform 131, life building can be the structure of the pattern multiplicity of single-layer or multi-layer.Life
The villa structure type that building is two layers.Life building is equipped with lobby, kitchen, toilet etc..Therefore, life building can be realized not
The function of ceasing, cook and wash one's face and rinse one's mouth.
Workbench 132 is equipped with Central Control Room, equipment room, storeroom, bait tin and feeds etc. equipment automatically.Therefore, should
Deep water mesh cage can be realized proposes the functions such as net, Autoamtic bait putting, underwater intelligent monitoring, underwater automatic net-washing automatically.
According to the structure of above-mentioned deep water mesh cage, the folding method of deep water mesh cage is illustrated.Referring to Fig. 2, a kind of depth
The folding method of network of rivers case, comprising:
Step S11, arrange launching ways: coaster is slidably set on slideway.
The positioning of caisson: step S12 caisson is located on coaster.
The installation of supervisor: supervisor is inserted into caisson respectively and is welded to connect by step S13.
The installation of secondary piece: step S14 secondary piece is lifted in order and is mounted on supervisor above and is welded to connect.
The spreading of supervisor: the remainder of supervisor is installed and is welded to connect by step S15.
The installation of apical ring: step S16 apical ring is mounted on the supervisor that spreading is completed.
The folding method of above-mentioned deep water mesh cage can enable caisson that can smoothly slide along slideway to move by coaster.
Also, caisson sliding is to drive entire deep water mesh cage to slide.Slideway is extended into lower waterfront from the construction plant area of deep water mesh cage
Side position avoids lifting whole deep water mesh cage using gantry crane, easy to operate, is easy to implement closing up for deep water mesh cage.
Referring to Fig. 3, specifically in the present embodiment, step S11 arranges that launching ways, coaster are slidably set to slideway
On step further include: support construction is arranged in step S111 on the coaster, and support construction is fixedly connected with coaster.
Fig. 4 and Fig. 5 is please referred to, for convenience of description, the extending direction of slideway 21 is the moving direction of deep water mesh cage, then deep water
The two sides of net cage are port and starboard.That is the caisson 110 of the port and starboard of deep water mesh cage is positioned on coaster 22.
Support construction 23 is steel cabinet, and the extending direction along slideway 21 is arranged on coaster 22.Support construction 22 it is interior
Portion is filled equipped with cement, to enhance the intensity of support construction.
Support construction 23 is fixedly arranged by welding on coaster 22.
The step of step S11, arrangement launching ways further includes step S112, and sleeper 24 is arranged in support construction 23, is led to
Crossing adjustment sleeper 24 keeps multiple caissons 110 in the same plane.
Sleeper 24 at least two.The cross section of each sleeper 24 is right-angled trapezium.In present embodiment, sleeper includes
Upper and lower two sleepers.Upper sleeper 241 is oppositely arranged with lower sleeper 242, and the right-angle side of upper sleeper 241 is used to support caisson, under
The right-angle side of sleeper 242 with support construction for offseting.Connected between upper sleeper 241 and lower sleeper 242 by inclined-plane, then on
When position between sleeper 241 and lower sleeper 242 or so adjusts, it can be realized and the overall height of sleeper 24 is adjusted
Purpose.
Therefore, it by adjusting the position of upper and lower sleeper, realizes to 110 height of caisson to be to adjust, guarantees the four of deep water mesh cage
A caisson 110 is located in same level.Also, the outside of upper sleeper 241 and lower sleeper 242 is equipped with lug 243, in order to
The position of upper sleeper 241 and lower sleeper 242 is adjusted.
Specifically in the present embodiment, the positioning of caisson 110: caisson 110 is located in supratrochlear step by step S12
Further include: connecting rod 25 is set between caisson 110 and support construction 23, and the both ends of connecting rod 25 are tied with caisson and support respectively
Structure is fixedly connected.Connecting rod 25 is fixedly connected with caisson 110 respectively in the two sides of support construction 23.On the one hand connecting rod 25 is realized
Support construction 23 is fixedly connected with caisson 110, on the other hand also can achieve the effect of dispersion pressure, guarantees support construction 23
Support caisson 110 can be stablized.
Connecting rod 25 is fixedly connected with caisson 110 and support construction 23 respectively by being welded to connect.
Step S13 is responsible for 111 installation: supervisor 111 being inserted into caisson 110 respectively and is welded to connect, please refers to Fig. 6.
First the bottommost segment for being responsible for 111 is welded to connect in caisson 110.It is multiple segments that 111 points, which will be responsible for, is avoided to higher
Supervisor 111 is installed, and the height of single segment is smaller, facilitates installation.It is offered in the middle part of caisson for accommodating supervisor's 111
Groove, in order to be responsible for 111 installation.
Referring to Fig. 7, step S14, the installation of secondary piece 112: secondary piece 112 is lifted in order and is mounted on supervisor above and welds
Connection.
It is prefabricated to complete time piece 112.Secondary piece 112 includes the bottom frame 1120 positioned at the bottom edge of isosceles triangle, and is located at isosceles
First diagonal brace 1122 of two waist positions of triangle, is additionally provided with the second diagonal brace 1123 between bottom frame 1120 and the first diagonal brace 1122.
Time piece 112 is lifted, the both ends of the bottom frame of secondary piece 112 are connect with two adjacent supervisors 111 respectively, realize time piece
Tentatively it is fixedly connected.
Also, when secondary piece 112 are installed in lifting, need to guarantee time 112 place plane of piece perpendicular to four 110 institutes of caisson
Horizontal plane.
Referring to Fig. 8, step S15, is responsible for 111 spreading: installing and be welded to connect the remainder for being responsible for 111.
The segment for the bottommost being responsible in step s 13 has been fixedly welded on caisson, then by the supervisor of remainder
Segmentation is successively weldingly fixed on the segment of bottommost, realizes that is entirely responsible for is installed.
Referring to Fig. 9, step S16, the installation of apical ring 113: apical ring 113 is mounted on the supervisor 111 that spreading is completed.
Apical ring 113, which shifts to an earlier date pre-production, to be completed.Specifically, multiple abdomens are welded between top boom 1131, lower boom 1132
Bar 1133 is fabricated to top frame 1130.Multiple top frames 1130 are connected with each other by supervisor 111, form apical ring 113.The two of top frame 1130
Both ends of the end respectively with supervisor 111 are welded and fixed.
The step S16 of the installation of apical ring 113 further includes that step S161 installs etting.Etting completes in advance, in apical ring
After 113 are installed, the installation in secondary on piece of etting is determined by hanging plummet in the installation site of each etting of apical ring
Position has guaranteed the installation site up and down of etting on the same line.
Referring to Fig. 10, the folding method of the deep water mesh cage of present embodiment further includes, step S17 installs support column: right
Support column is fixedly installed between supratrochlear secondary piece and coaster, to support the secondary piece.
Figure 11 is please referred to, the secondary piece 112 on coaster 22 is the secondary piece at the port and starboard of deep water mesh cage.In left and right two
Support column 26 is fixedly installed between the bottom frame and coaster 22 of the secondary piece of side.Since the length of secondary piece bottom frame is longer, support column is utilized
Secondary piece is subjected to reinforcing support, avoid welding after deformation occurs, influence the installation accuracy control of later etting tooling；Guarantee simultaneously
The support strength of coaster and deep water mesh cage.
And the step of installing support column 26 specifically further includes, and fixes respectively at front, middle part and the rear portion of secondary piece 112
The support column 26 is set.Support column 26 can carry out even support in the front to secondary piece, middle part and rear portion respectively.Also,
Front, middle part and the rear portion of secondary piece are respectively welded there are three support column 26, guarantee support strength.
Figure 12 and Figure 13 is please referred to, the folding method of the deep water mesh cage of present embodiment further includes that step S18 is lauched step
Suddenly, winch pulls the coaster, and coaster slides along the launching ways, makes on institute's deep water mesh cage sliding launch to barge.
Step S18: being lauched step further includes that the two sides of support knot 23 are provided with lifting lug, and winch passes through the lifting lug and institute
State coaster connection.
Lifting lug 31 is welded on the two sides of support construction 23, and two 30 tons of winch 32 is separately fixed to a left side for deep water mesh cage
The outside of starboard.Pulley blocks 33 are arranged on barge, are walked on the rope between winch and pulley blocks 33 by wirerope for the other side, from
And extension pulley is moved along slideway.
The folding method of the deep water mesh cage of present embodiment further includes step S19, the peace of accommodation platform and workbench
Dress: accommodation platform and workbench are mounted on apical ring.
Specifically in the present embodiment, operating platform 13 is set to the infall on the infall of two top frames and supervisor 111
Can evenly dispersed stress, the preferable weight for carrying operating platform 13 guarantees the integrally-built intensity of deep water mesh cage and steady
It is qualitative.
Referring to Fig. 1, the operating platform 13 of the deep water mesh cage of present embodiment includes accommodation platform 131 and workbench
132.Accommodation platform 131 is supported in the other side of apical ring.Accommodation platform 131 and workbench 132 are oppositely arranged.Specifically, raw
Platform 131 and workbench 132 living are located at two opposite vertex of apical ring.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (10)
1. a kind of folding method of deep water mesh cage characterized by comprising
Arrange launching ways: coaster is slidably set on slideway；
The positioning of caisson: caisson is located on coaster；
The installation of supervisor: supervisor is inserted into caisson respectively and is welded to connect；
The installation of secondary piece: secondary piece is lifted in order and is mounted on supervisor above and is welded to connect；
The spreading of supervisor: the remainder of supervisor is installed and is welded to connect；
The installation of apical ring: apical ring is mounted on the supervisor that spreading is completed.
2. the folding method of deep water mesh cage according to claim 1, which is characterized in that the step of arrangement launching ways also wraps
It includes, support construction is set on the coaster, the support construction is fixedly connected with the coaster.
3. the folding method of deep water mesh cage according to claim 2, which is characterized in that the step of arrangement launching ways also wraps
It includes, sleeper is set in the support construction, keep multiple caissons in the same plane by adjusting sleeper.
4. the folding method of deep water mesh cage according to claim 2, which is characterized in that the positioning of the caisson further includes in institute
It states and connecting rod is set between caisson and the support construction, the both ends of the connecting rod are tied with the caisson and the support respectively
Structure is fixedly connected.
5. the folding method of deep water mesh cage according to claim 2, which is characterized in that further include being lauched step, winch pulls institute
Coaster is stated, the coaster is slided along the launching ways, is made on the deep water mesh cage sliding launch to barge.
6. the folding method of deep water mesh cage according to claim 5, which is characterized in that it is described to be lauched step, further include, described
The two sides of support construction are provided with lifting lug, and the winch is connect by the lifting lug with the coaster.
7. the folding method of deep water mesh cage according to claim 1, which is characterized in that the step of the installation of the apical ring, also wrap
It includes, etting is installed.
8. the folding method of deep water mesh cage according to claim 1, which is characterized in that further include installation support column: on coaster
Secondary piece and the coaster between support column is fixedly installed, to support the secondary piece.
9. the folding method of deep water mesh cage according to claim 8, which is characterized in that the step of the installation support column, also wrap
It includes, the support column is fixedly installed respectively at front, middle part and the rear portion of the secondary piece.
10. the folding method of deep water mesh cage according to claim 1, which is characterized in that further include accommodation platform and workbench
Installation: by accommodation platform and workbench lifting be mounted on the apical ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032430.4A CN109644916B (en) | 2019-01-14 | 2019-01-14 | Closing method of deep water net cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910032430.4A CN109644916B (en) | 2019-01-14 | 2019-01-14 | Closing method of deep water net cage |
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| Publication Number | Publication Date |
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| CN109644916A true CN109644916A (en) | 2019-04-19 |
| CN109644916B CN109644916B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910032430.4A Active CN109644916B (en) | 2019-01-14 | 2019-01-14 | Closing method of deep water net cage |
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Cited By (1)
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| CN112471030A (en) * | 2020-12-23 | 2021-03-12 | 烟台中集来福士海洋工程有限公司 | Aquaculture net cage and climbing ladder thereof |
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| JP2018014969A (en) * | 2016-07-29 | 2018-02-01 | かなわ水産株式会社 | Marine aquaculture tray and marine aquaculture tray laminate laminating the same |
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| CN112471030A (en) * | 2020-12-23 | 2021-03-12 | 烟台中集来福士海洋工程有限公司 | Aquaculture net cage and climbing ladder thereof |
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| Publication number | Publication date |
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| CN109644916B (en) | 2021-09-10 |
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