CN103430878A - Upright pile for surrounding cultivation net - Google Patents
Upright pile for surrounding cultivation net Download PDFInfo
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- CN103430878A CN103430878A CN2013103479723A CN201310347972A CN103430878A CN 103430878 A CN103430878 A CN 103430878A CN 2013103479723 A CN2013103479723 A CN 2013103479723A CN 201310347972 A CN201310347972 A CN 201310347972A CN 103430878 A CN103430878 A CN 103430878A
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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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Abstract
The invention relates to an upright pile for surrounding a cultivation net. The upright pile utilizes a reinforced concrete upright column and is characterized by utilizing a combined structure consisting of a reinforced concrete upright pier, the reinforced concrete upright column, upright pile arm frames, an upright pile pulling rope and an upright pile hanging net force headrope; as to the reinforced concrete upright column, the outer diameter is 50cm, the length is 21m and the wall thickness is 10cm; anti-fouling paint for ships is painted on the outer surface of the reinforced concrete column, and an upright pier is arranged at the upper end of the reinforced concrete upright column; cylindrical nylon rods are utilized as the upright pile arm frames; a high-strength polyethylene monofilament rope passes through a PVC (polyvinyl chloride) coating canvas pipe to form the upright pile hanging net force headrope; the upright pile hanging net force headrope and the upright pile arm frames are fixed; the upright pile arm frames are arranged at intervals of 2.5m from a 2.5m-position from the top end of the reinforced concrete upright column; an ultra-high-strength rope is taken as the upright pile pulling rope for connecting the reinforced concrete upright column, the upright pile hanging net force headrope and the upright pile arm frames, all connection parts are bound sequentially, and the upright pile for surrounding the cultivation net is obtained.
Description
Technical field
The present invention relates to culturing net and enclose technical field, especially culturing net encloses stand column pile.
Background technology
It is the important component part that culturing net encloses that culturing net encloses stand column pile, it culturing net enclose in engineering play support etting, firm net surrounds the important function such as type and warning dealing ship.Because of custom or the difference such as region, net encloses that stand column pile is enclosed pole also referred to as net or net encloses column.Existing culturing net encloses stand column pile and uses the single structures such as bamboo pole or rough surface armored concrete post, and the off line stand column pile fracture lodging accident of enclosing of bad weather happens occasionally.Existing culturing net encloses etting directly is strapped in the stake of shaggy armored concrete post.Net encloses stand column pile, net purse seine clothing and net and enclose the rete cord aufwuch (as barnacle, oyster and mussel etc.) that all very easily grows in breeding process, culturing net purse seine clothing and net enclose between stand column pile and aufwuch thereof and continue the wearing and tearing cutting, net purse seine clothing worn-off fish very easily occurring and escape accident, grows to the net culture in enclosure and cause heavy losses.Once net purse seine clothing occurs, gall, the net culture in enclosure people or breeding enterprise can only be taked the draping measure, and it is very high that net encloses the draping integrated cost.Culturing net encloses draping and easily causes net culture in enclosure breeding fish emergency reaction, causes cultured fishes to escape, affect the growth of cultured fishes normal growth, affects the net culture in enclosure and grow cost and benefit.Enclose in evolution and exposed a lot of long-term unsolved technical barriers at aquaculture net, as net enclose stand column pile fracture lodging problem, net enclose between stand column pile and aufwuch thereof and net purse seine clothing directly contact continue wear problem, net enclose inside and outside whole wind wave resistance stream ability problem, net purse seine clothing water body exchange freely problem, net enclose bottom fish escape problem and the large problem of net rope net raw materials consumption etc., had a strong impact on the net culture in enclosure and grown safety.
Summary of the invention
The problem that the present invention need to solve is to provide the stand column pile that culturing net encloses use, effectively realize the isolation between Culture pure seine stand column pile and net purse seine clothing, to prevent that Culture pure seine stand column pile and aufwuch thereof from directly contacting and the net purse seine clothing that weares and teares, enclose the draping number of times to reduce net, reduce net and enclose and execute raw materials consumption, improve net and enclose the column combination property, increase the net culture in enclosure and grow benefit, improve net and enclose and execute safety.
Technical scheme of the present invention adopts reinforced concrete upright column, channel-section steel, nylon rod, PVC enameling duck, the strong rope of superelevation, anti-fouling paint peculiar to vessel, high-strength polythene filament, it is characterized in that culturing net encloses stand column pile employing " reinforced concrete upright column pier+reinforced concrete upright column+stand column pile jib+stand column pile pull rope+stand column pile linked network manrope " fabricated structure of use; First with twisting machine, the high-strength polythene filament of 72 diameter 0.2mm, fracture strength 7.34g/D is processed into to a high-strength polythene filament rope yarn by the twist of 66 twist with the fingers/rice, then with identical 155 high-strength polythene filament rope yarns of method processing; Then with stranding machine by 52 high-strength polythene filament rope yarns the high-strength polythene filament rope strand of special hierarchy processing by the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core, the high-strength polythene filament rope yarn radical in the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core is respectively 27,17 and 8; The processing of high-strength polythene filament rope strand is 88.4mm by a burst lay pitch; Again with identical two high-strength polythene filament rope strands of method processing; Then the rope machine of take is processed into by the rope lay pitch of 95.2mm the high-strength polythene filament rope that a nominal diameter is 34mm by three high-strength polythene filament rope strands; Smooth surface PVC enameling duck pipe with smooth surface PVC enameling duck processing caliber 38mm, a length 11m; The high-strength polythene filament rope that is 34mm, length 11m by a nominal diameter is applied in above-mentioned smooth surface PVC enameling duck pipe, obtains the stand column pile linked network manrope of a surface cover canvas duct; The cylindrical nylon rod of processing diameter 7cm, a length 1.2m, the smooth circular hole of a diameter 39mm is made a call at an end 5.45cm place at the cylindrical nylon rod of distance perpendicular to cylindrical nylon rod axial line, again smooth hemispherical is processed into in the cylindrical nylon rod top in the smooth circular hole outside, and the other end of cylindrical nylon rod does not carry out any processing, this has just obtained a root post stake jib; Process four root post stake jibs by identical method, five root post stake jib length are 1.2m; Reinforced concrete upright column is hollow cylindrical, reinforced concrete upright column external diameter 50cm, length 21m, wall thickness 10cm, and reinforced concrete upright column dries after solidifying rear column stake outer surface brushing anti-fouling paint peculiar to vessel; When casting, reinforced concrete upright column starts perpendicular to the column axial line, one root post stake jib to be installed every 2.5m from distance reinforced concrete upright column top 2.5m on a plane that is positioned at the reinforced concrete upright column homonymy, the length that exposes to reinforced concrete upright column outer column stake jib punching end is 76cm, and the stand column pile jib length be cast in reinforced concrete upright column is 44cm; Five root post stake jib Smooth circular hole axial lines after installation overlap; From the reinforced concrete upright column top, five root post stake jibs after installation are referred to as the 1st root post stake jib, the 2nd root post stake jib, the 3rd root post stake jib, the 4th root post stake jib and the 5th root post stake jib; Cast the reinforced concrete upright column pier of a hollow cylindrical on the reinforced concrete upright column top, the internal diameter 30cm of reinforced concrete upright column pier, external diameter 100cm, height 50cm; After stand column pile linked network manrope is penetrated to the 1st root post stake jib, the 2nd root post stake jib, the 3rd root post stake jib, the 4th root post stake jib and the 5th root post stake jib Smooth circular hole in turn, the tension bundle is tied up fixing, and will between stand column pile linked network manrope and stand column pile jib Smooth circular hole, with nylon cable tie, fasten, stand column pile linked network manrope just tightly is fixed on the stand column pile jib like this; Soak and dry the strong rope of superelevation after processing as connecting reinforcement concrete column, stand column pile linked network manrope and stand column pile jib stand column pile pull rope with a nominal diameter 14mm, anti-fouling paint peculiar to vessel; First an end of stand column pile pull rope is pricked and tied up the junction at the 1st root post stake jib and reinforced concrete upright column with two fast knots; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 2nd root post stake jib and stand column pile linked network manrope with nylon cable tie; Straining the junction of stand column pile pull rope to the 3 root post stake jibs and reinforced concrete upright column pricks and ties up reinforced concrete upright column and the 3rd root post stake jib with two fast knots around reinforced concrete upright column two circles are rear again; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 4th root post stake jib and stand column pile linked network manrope with nylon cable tie; The junction of finally straining stand column pile pull rope to the 5 root post stake jibs and reinforced concrete upright column ties up reinforced concrete upright column and the 5th root post stake jib with two fast knots bundles after around reinforced concrete upright column three circles, and this has just obtained the stand column pile that culturing net encloses use; The stand column pile that every culturing net encloses use is squeezed into 8.5m under seabed by position location, between adjacent two root post stake top reinforced concrete upright column piers, with channel-section steel, is connected.
Outstanding feature of the present invention is to have formulated the reinforced concrete upright column of a kind of external diameter 50cm, length 21m, the thick 10cm of arm, and it can resist the attack of 12 grades of typhoons in engineering is grown in the net culture in enclosure, has improved the wind wave resistance fluidity energy that culturing net encloses; The stand column pile jib adopts the nylon rod processing and fabricating, and mechanical property and anti-seawater corrosion performance are with the obvious advantage, have evaded the common steel component in prior art field seawater corrosion risk in the purse seine engineering; Stand column pile jib front portion is processed into smooth hemispherical top and has been avoided the contact wear between cylindrical tip sharp corners and purse seine Lecideales pin; The present invention applies the high-strength polythene filament rope performance brilliance that special gang rope technique (comprising special hierarchy, rope twist per unit, burst lay pitch and the rope lay pitch etc.) creates on the basis of a large amount of unconventional tests, the ultimate strength of this rope is up to 136.5kN, improve 16% than the polyethylene rope high-class product index of equivalent diameter in the GB/T18674 standard, improved the performance of follow-up stand column pile linked network manrope product, reduce the material consumption of wearproof net stand column pile equipment, improved the combination property that culturing net encloses; Smooth surface PVC enameling duck pipe of overcoat in stand column pile linked network manrope, both increased the mechanical property of stand column pile linked network manrope, can effectively prevent again marine fouling organism in stand column pile linked network manrope with directly adhering on rope, effectively prevented the direct contact wear with net purse seine clothing with rope of stand column pile linked network manrope; The strong rope of superelevation that the present invention soaks a nominal diameter 14mm, anti-fouling paint peculiar to vessel dry after processing is used as the stand column pile pull rope, antifouling property and the mechanical property of stand column pile pull rope have greatly been improved, reduced the material consumption of stand column pile equipment, effectively prevent marine fouling organism adhering on the stand column pile pull rope, effectively prevented marine fouling organism (as barnacle, oyster and mussel etc.) sharp corners and the wearing and tearing of the cutting between net purse seine clothing of adhering to.Compared with prior art, the present invention has avoided the defect of the direct connection of prior art net purse seine clothing on reinforced concrete upright column, reinforced concrete upright column and net purse seine clothing have spatially effectively been isolated, effectively avoided reinforced concrete upright column directly to contact and the etting that weares and teares, having solved culturing net encloses between stand column pile and aufwuch thereof and culturing net purse seine clothing and directly contacts and continue wearing and tearing, reduce culturing net and enclosed the draping number of times, reduce the material consumption successful, it is very convenient when net purse seine clothing is installed, pass through netting twine, vertical vertical guiding principle on nylon cable tie and net purse seine clothing just can realize vertically standing being connected between guiding principle and stand column pile linked network manrope, net purse seine clothing is arranged on stand column pile linked network manrope, wind wave resistance stream successful, increase culturing net and enclosed benefit, having improved culturing net encloses and executes safety, promote the sustainable development that culturing net encloses.
The accompanying drawing explanation
What Fig. 1 meaned is stand column pile jib schematic diagram.
What Fig. 2 meaned is the stand column pile structural representation that culturing net encloses use.
Embodiment
Implement best way of the present invention below in conjunction with the accompanying drawing explanation:
The present invention adopts reinforced concrete upright column, channel-section steel, nylon rod, PVC enameling duck, the strong rope of superelevation, anti-fouling paint peculiar to vessel, high-strength polythene filament (hereinafter to be referred as the HSPE monofilament), and stand column pile adopts " reinforced concrete upright column pier+reinforced concrete upright column+stand column pile jib+stand column pile pull rope+stand column pile linked network manrope " fabricated structure; First with twisting machine (steel ring twisting machine as large as NX30/90), the HSPE monofilament of 72 diameter 0.2mm, fracture strength 7.34g/D is processed into to a HSPE monofilament rope yarn by the twist of 66 twist with the fingers/rice, then with identical 155 HSPE monofilament rope yarns of method processing; Then with stranding machine (as the ZG8 stranding machine) by 52 HSPE monofilament rope yarns the HSPE monofilament rope strand of special hierarchy processing by the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core, the HSPE monofilament rope yarn radical in the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core is respectively 27,17 and 8; The processing of HSPE monofilament rope strand is 88.4mm by the special burst of lay pitch, then with identical two HSPE monofilament rope strands of method processing; Then the rope machine (as the ZS12 rope machine) of take is processed into by the special rope lay pitch of 95.2mm the HSPE monofilament rope that a nominal diameter is 34mm by three HSPE monofilament rope strands.Process the smooth surface PVC enameling duck pipe of caliber 38mm, a length 11m with smooth surface PVC enameling duck (as the smooth surface PVC enameling duck of Lu Fan group production), the HSPE monofilament rope that is 34mm, length 11m by a nominal diameter is applied in above-mentioned caliber 38mm smooth surface PVC enameling duck pipe to obtain the stand column pile linked network manrope (5 in Fig. 2) of a surface cover canvas duct, first process a diameter 7cm, the cylindrical nylon rod of length 1.2m, then make a call to the smooth circular hole (21 in Fig. 1) of a diameter 39mm perpendicular to cylindrical nylon rod axial line at an end 5.45cm place of the cylindrical nylon rod of distance, again smooth hemispherical top (22 in Fig. 1) is processed into in the 3.5cm elongated cylindrical nylon rod top in the smooth circular hole outside (being the right side of smooth circular hole in Fig. 1), the spherical radius on hemispherical top is 3.5cm, and the other end of cylindrical nylon rod (23 in Fig. 1) does not carry out any processing, this has just obtained a root post stake jib (Fig. 1), process four root post stake jibs by identical method, five root post stake jib length are 1.2m.Reinforced concrete upright column (2 in Fig. 2) is hollow cylindrical, reinforced concrete upright column external diameter 50cm, length 21m, wall thickness 10cm, cast and form by land with reinforcing bar, concrete, reinforced concrete upright column dries after solidifying rear column stake outer surface brushing anti-fouling paint peculiar to vessel; When casting, reinforced concrete upright column starts perpendicular to the column axial line, one root post stake jib to be installed every 2.5m from distance reinforced concrete upright column top 2.5m on a plane that is positioned at the reinforced concrete upright column homonymy, the length that exposes to reinforced concrete upright column outer column stake jib punching end is 76cm, and the stand column pile jib length be cast in reinforced concrete upright column is 44cm; Five root post stake jib Smooth circular hole axial lines after installation overlap; Five root post stake jibs from the reinforced concrete upright column top starts to install are referred to as the 1st root post stake jib (3 in Fig. 2), the 2nd root post stake jib (6 in Fig. 2), the 3rd root post stake jib (7 in Fig. 2), the 4th root post stake jib (8 in Fig. 2) and the 5th root post stake jib (9 in Fig. 2); Cast the reinforced concrete upright column pier (1 in Fig. 2) of a hollow cylindrical on the reinforced concrete upright column top, the internal diameter 30cm of reinforced concrete upright column pier, external diameter 100cm, height 50cm.After stand column pile linked network manrope (5 in Fig. 2) is penetrated to the 1st root post stake jib, the 2nd root post stake jib, the 3rd root post stake jib, the 4th root post stake jib and the 5th root post stake jib Smooth circular hole in turn, the tension bundle is tied up fixing, and will between stand column pile linked network manrope and stand column pile jib Smooth circular hole, with nylon cable tie, fasten, stand column pile linked network manrope just tightly is fixed on the stand column pile jib like this.Soak and dry the strong rope of superelevation after processing (super-macromolecule polyethylene rope of producing as Aidi High Molecular Material Co., Ltd., Shandong) as connecting reinforcement concrete column, stand column pile linked network manrope and stand column pile pull rope (4 in Fig. 2) for the stand column pile jib with a nominal diameter 14mm, anti-fouling paint peculiar to vessel; First an end of stand column pile pull rope is pricked and tied up the junction at the 1st root post stake jib and reinforced concrete upright column with two fast knots; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 2nd root post stake jib and stand column pile linked network manrope with nylon cable tie; Straining the junction of stand column pile pull rope to the 3 root post stake jibs and reinforced concrete upright column pricks and ties up reinforced concrete upright column and the 3rd root post stake jib with two fast knots around reinforced concrete upright column two circles are rear again; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 4th root post stake jib and stand column pile linked network manrope with nylon cable tie; Finally straining the junction of stand column pile pull rope to the 5 root post stake jibs and reinforced concrete upright column pricks and ties up reinforced concrete upright column and the 5th root post stake jib with two fast knots around reinforced concrete upright column three circles are rear; The stand column pile pull rope just effectively couples together reinforced concrete upright column, stand column pile linked network manrope and stand column pile jib like this, not only increased the stand column pile jib steadiness, but also strengthen the bonding strength between stand column pile linked network manrope and reinforced concrete upright column, this has just obtained the stand column pile (Fig. 2) that culturing net encloses use.Every culturing net encloses stand column pile and squeezes into 8.5m under seabed with pile driving barge by position location, between adjacent two root post stake top reinforced concrete upright column piers, with channel-section steel, is connected.
Claims (1)
1. culturing net encloses the stand column pile of use, adopt reinforced concrete upright column, channel-section steel, nylon rod, PVC enameling duck, the strong rope of superelevation, anti-fouling paint peculiar to vessel, high-strength polythene filament, it is characterized in that culturing net encloses stand column pile employing " reinforced concrete upright column pier+reinforced concrete upright column+stand column pile jib+stand column pile pull rope+stand column pile linked network manrope " fabricated structure of use; First with twisting machine, the high-strength polythene filament of 72 diameter 0.2mm, fracture strength 7.34g/D is processed into to a high-strength polythene filament rope yarn by the twist of 66 twist with the fingers/rice, then with identical 155 high-strength polythene filament rope yarns of method processing; Then with stranding machine by 52 high-strength polythene filament rope yarns the high-strength polythene filament rope strand of special hierarchy processing by the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core, the high-strength polythene filament rope yarn radical in the 1st layer of rope yarn, the 2nd layer of rope yarn and wire rope core is respectively 27,17 and 8; The processing of high-strength polythene filament rope strand is 88.4mm by a burst lay pitch; Again with identical two high-strength polythene filament rope strands of method processing; Then the rope machine of take is processed into by the rope lay pitch of 95.2mm the high-strength polythene filament rope that a nominal diameter is 34mm by three high-strength polythene filament rope strands; Smooth surface PVC enameling duck pipe with smooth surface PVC enameling duck processing caliber 38mm, a length 11m; The high-strength polythene filament rope that is 34mm, length 11m by a nominal diameter is applied in above-mentioned smooth surface PVC enameling duck pipe, obtains the stand column pile linked network manrope of a surface cover canvas duct; The cylindrical nylon rod of processing diameter 7cm, a length 1.2m, the smooth circular hole of a diameter 39mm is made a call at an end 5.45cm place at the cylindrical nylon rod of distance perpendicular to cylindrical nylon rod axial line, again smooth hemispherical is processed into in the cylindrical nylon rod top in the smooth circular hole outside, and the other end of cylindrical nylon rod does not carry out any processing, this has just obtained a root post stake jib; Process four root post stake jibs by identical method, five root post stake jib length are 1.2m; Reinforced concrete upright column is hollow cylindrical, reinforced concrete upright column external diameter 50cm, length 21m, wall thickness 10cm, and reinforced concrete upright column dries after solidifying rear column stake outer surface brushing anti-fouling paint peculiar to vessel; When casting, reinforced concrete upright column starts perpendicular to the column axial line, one root post stake jib to be installed every 2.5m from distance reinforced concrete upright column top 2.5m on a plane that is positioned at the reinforced concrete upright column homonymy, the length that exposes to reinforced concrete upright column outer column stake jib punching end is 76cm, and the stand column pile jib length be cast in reinforced concrete upright column is 44cm; Five root post stake jib Smooth circular hole axial lines after installation overlap; From the reinforced concrete upright column top, five root post stake jibs after installation are referred to as the 1st root post stake jib, the 2nd root post stake jib, the 3rd root post stake jib, the 4th root post stake jib and the 5th root post stake jib; Cast the reinforced concrete upright column pier of a hollow cylindrical on the reinforced concrete upright column top, the internal diameter 30cm of reinforced concrete upright column pier, external diameter 100cm, height 50cm; After stand column pile linked network manrope is penetrated to the 1st root post stake jib, the 2nd root post stake jib, the 3rd root post stake jib, the 4th root post stake jib and the 5th root post stake jib Smooth circular hole in turn, the tension bundle is tied up fixing, and will between stand column pile linked network manrope and stand column pile jib Smooth circular hole, with nylon cable tie, fasten, stand column pile linked network manrope just tightly is fixed on the stand column pile jib like this; Soak and dry the strong rope of superelevation after processing as connecting reinforcement concrete column, stand column pile linked network manrope and stand column pile jib stand column pile pull rope with a nominal diameter 14mm, anti-fouling paint peculiar to vessel; First an end of stand column pile pull rope is pricked and tied up the junction at the 1st root post stake jib and reinforced concrete upright column with two fast knots; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 2nd root post stake jib and stand column pile linked network manrope with nylon cable tie; Straining the junction of stand column pile pull rope to the 3 root post stake jibs and reinforced concrete upright column pricks and ties up reinforced concrete upright column and the 3rd root post stake jib with two fast knots around reinforced concrete upright column two circles are rear again; Then strain the stand column pile pull rope and prick and tie up stand column pile pull rope, stand column pile linked network manrope and stand column pile jib in the junction of the 4th root post stake jib and stand column pile linked network manrope with nylon cable tie; The junction of finally straining stand column pile pull rope to the 5 root post stake jibs and reinforced concrete upright column ties up reinforced concrete upright column and the 5th root post stake jib with two fast knots bundles after around reinforced concrete upright column three circles, and this has just obtained the stand column pile that culturing net encloses use; The stand column pile that every culturing net encloses use is squeezed into 8.5m under seabed by position location, between adjacent two root post stake top reinforced concrete upright column piers, with channel-section steel, is connected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109511592A (en) * | 2017-09-20 | 2019-03-26 | 贵港市瑞成科技有限公司 | A kind of oyster culture attachment base |
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| CN109511592B (en) * | 2017-09-20 | 2021-11-05 | 浦江县含行科技有限公司 | Oyster cultivation attaching base |
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| CN103430878B (en) | 2014-12-31 |
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