JP3662890B2 - Corrosion protection device for wire mesh squid - Google Patents

Corrosion protection device for wire mesh squid Download PDF

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JP3662890B2
JP3662890B2 JP2002089691A JP2002089691A JP3662890B2 JP 3662890 B2 JP3662890 B2 JP 3662890B2 JP 2002089691 A JP2002089691 A JP 2002089691A JP 2002089691 A JP2002089691 A JP 2002089691A JP 3662890 B2 JP3662890 B2 JP 3662890B2
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squid
main body
wire mesh
zinc
wire
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JP2003284448A (en
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辰三 山下
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辰三 山下
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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
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    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Description

【０００１】
【発明の属する技術分野】
本発明は、金網イカダとフレキシブルな電線を介して接続され、海中浸漬されて前記金網イカダの防食を行う金網イカダの防食装置に関する。
【０００２】
【従来の技術】
魚の養殖には、ポリエチレン製の樹脂網の他、金網製の金網イカダ（イケス）が多用されている。金網イカダには、電食による早期腐食を防止するため亜鉛メッキが施されている。しかし、亜鉛メッキされた金網イカダにあっては、２年もするとメッキが落ち、その後急速に金網本体が腐食する。
【０００３】
そこで、従来、新規に設定した金網イカダが１〜２年ほど経過し、亜鉛メッキが消耗する頃を見計らって棒状の亜鉛棒を取付けることが行なわれていた。これにより、金網イカダの電食を緩和し、その寿命を１年以上延長することができる。
【０００４】
従来の金網イカダの防食材は、１ｍ位の長い金属棒の回りに厚く亜鉛を被覆した構造で、１回限りの使い捨て部品として構成されていた。１台の金網イカダに対しては、コーナ部分とその中間を併せて８個の部品がセットで利用されるのが一般的である。金額的には、かなり高価なものであり、現在１本当り１万５千円程度で販売されている。この場合、８本セットでは１２万円となる。
【０００５】
ところが、以上の如く使用されている従来よりの金網イカダの防食材にあっては、使い捨て形となっているので、追加や交換が難しく、金網イカダの腐食状況に応じ、適切に対応するのが困難であった。
【０００６】
例えば、設置後１年の金網イカダに８本の腐食材を取付ける場合、全品とも新品を用いなければならず、前に別の所で使っていた中古品を取付けるのは、不可能ではないが難しい。使用途中で亜鉛消耗状況をチェックしなければならず、ともすると中古品の早目の消耗によって、その部分の金網を早目に腐食させてしまい、金網イカダに穴を明けてしまうからである。結局、中古品の再利用は難しく、廃棄処分せざるを得ず、無駄が多かった。
【０００７】
また、防食材の利用によって延命された金網について、更に延命すべく新たな防食材を取付けた場合、後の防食材の取付後、結局網が破れ、防食材が中古品として残ってしまうことが考えられる。この場合、当該中古品を再利用するのが８本同時セットでなければ難しいことになる。
【０００８】
その他、防食材の効き目は、金網イカダの状況によって異なる筈である。にも拘らず、従来は、通り一遍の知得によって従前通りの一様な利用を行い、無駄を出したり、亜鉛量の不足で金網イカダの寿命を短くしている。これらの事項は、本発明者が、実際の潜水作業を行って、防食効果を観察した上で得られた知得である。
【０００９】
【発明が解決しようとする課題】
本発明は、上記従来技術に鑑みて、防食材の本体部分を使い捨てとせず、これに規定サイズの亜鉛板を金網イカダの状況に応じ所望の量だけ追加、設定可能とし、常時十分な量の亜鉛量を提供可能とし、金網イカダの寿命を最大限に維持することができる金網イカダの防食装置を提供することを目的とする。
【００１０】
【課題を解決するための手段】
上記課題を解決するための本発明は、金網イカダの金属部分とフレキシブルな電線を介して接続され、海中浸漬されて前記金網イカダの防食を行う金網イカダの防食装置であって、
耐食性導電材料で棒状に形成され、前記電線の一端と接続されて前記海水中に吊下される本体と、
定型サイズの板状に形成され、その板面に備えた前記本体の直径より僅かに大きい径の穴を介して前記本体に挿通される複数の亜鉛板と、
耐食性導電材料を用いて内径が前記本体の直径より僅かに大きい径のリング状に形成され、前記本体に挿通される前記亜鉛板間に介在されてその上下間隔を一定に保つスペーサと、
前記本体の下端に位置し、前記本体に挿通された亜鉛板及びスペーサを下端で支持する支持部を備え、前記亜鉛板の交換及び追加や前記亜鉛の消耗度合に拘わらず常時全亜鉛板を自重で下方に圧縮する安定構造としたことを特徴とする。前記、本体は、例えば二股に分岐される。この場合、前記亜鉛板板面には前記本体に挿通すべく一対の穴が明けられる。
【００１１】
本発明の金網イカダの防食装置によれば、本体をステンレス鋼等の耐食性導電材料で形成するので、再利用が可能であり、長期繰り返しの利用ができて無駄が無い。
【００１２】
また、定形サイズの亜鉛板をスペーサを介して本体に挿通し、自重でもって支持部で支持する構造であるので、亜鉛板が消耗しても常時上下相互の密着を得ることができ、安定した防食効果を発揮できる。また、亜鉛板は予め設定した設定可能最大数の範囲で任意に設定、追加可能であるので、金網イカダの状況に応じ常時所要の量の亜鉛量を保持できる。さらに、亜鉛板の面積は、その数によって自由に調整できるので、比較的短く形成された本体棒の中で、大面積を確保することができる。
【００１３】
さらに、本体を二股に分岐し、これに一対の穴を明けた亜鉛板を挿通する場合、海流中で亜鉛板を安定して支持できる。また、一対の穴を明けた亜鉛板として、現在規格品として船底の電食防止として利用されている亜鉛板、又はその中古品をそのまま利用することができるので、使用済み亜鉛板の再利用によって資源を無駄なく利用することができる。
【００１４】
【発明の実施の形態】
以下、添付図面を参照して本発明の一実施形態に係る金網イカダの防食装置を説明する。図１は装置全体の縦断面図、図２及び図３はそれに用いる部品の斜視図である。
【００１５】
図１に示すように、本発明の一実施形態に係る金網イカダの防食装置１は、直径６〜１５ｍｍのステンレス鋼丸棒で形成される本体２を主体として構成される。本体２は、電線固定のための円形の固定部３と、接続部４と、該接続部４から二股に分岐された直線部５（５Ａ，５Ｂ）から成る。通常は、固定部３に後述する電線を固定した状態で海中に吊下されて使用される。直線部５の長さＨ１は、３０〜５０ｃｍ程度の長さに形成される。間隔は、５〜１０ｃｍ程度である。固定部３及び接続部４の長さＨ２を含めた全体長さＨ１＋Ｈ２は４０〜７０ｃｍ程度である。
【００１６】
前記接続部４の中間には、電線接続用の端子６を備えた端子台７を有する。本例の端子台７は、接続部４に設けた細孔に挿通されるボルトと、このボルトに螺合されるナットから成る。
【００１７】
前記直線部５Ａ，５Ｂの下端には、細孔が設けられ、この細孔に挿通されて支持部８を構成するボルト及びナットが設けられている。この支持部８は、ナット及びボルトを外した状態で亜鉛板９又はスペーサ１０を挿通可能とする。また、ボルトを挿通し、ナットを掛けた状態で、挿通した亜鉛板９又はスペーサ１０の脱落を防止し、吊下状態にて亜鉛板９及びスペーサ１０を支持することができる。
【００１８】
図２に示すように、亜鉛板９は、縦寸法Ｂ（５〜７ｃｍ）、横寸法Ａ（１０〜１５ｃｍ）、厚みＣ（１０〜２０ｍｍ）の定形サイズで亜鉛材で構成される。一対の穴１１Ａ，１１Ｂの間隔Ｐは５〜１０ｃｍ程度とする。穴１１Ａ，１１Ｂの寸法は、前記直線部５Ａ，５Ｂの直径より僅かに大きい値とする。前記直線部５Ａ，５Ｂの間隔は、この間隔Ｐに合わせる。船底電食防止に用いられている規格亜鉛材を用いる場合には、それに合わせた寸法とする。
【００１９】
図３に示すように、スペーサ１０は、内径を前記直線部５Ａ，５Ｂの直径より僅かに大きい値として定める。厚みＤは、上下に位置する亜鉛板９との接触を確実とするため、十分大きな値２〜５ｍｍ程度とする。高さＨ３は、図１で示した亜鉛板９，９間の間隔Ｈ４を適切な値５〜１０ｍｍとするために、適切な値１０〜１５ｍｍとする。亜鉛板９，９間の間隔Ｈ４と一致しないのは、図示のように規格亜鉛板９は、ボルト締結のための５ｍｍ程度の窪みを有するからである。
【００２０】
再度図１にいて、以上の構成により、本例の金網イカダの防食装置１は、支持部８を外した状態で、亜鉛板９及びスペーサ１０を順次所望の数だけ挿通し、支持部８を設定することにより、図示の状態とすることができる。亜鉛板の装着数は、従来の使い捨てタイプの防食材の亜鉛表面積を参考として、これ以上の表面積を有するよう定めることができる。
【００２１】
例えば、従来の使い捨てタイプの防食材の表面積が８００ｃｍ2 であるとすると、１枚当りの亜鉛板９の表面積が１６０ｃｍ2 の場合、５枚以上設定する。本例では最大７枚設定できるように寸法Ｈ１を定めている。
【００２２】
図４に示すように、フレキシブルな電線１２の上端導線部は、特殊金具１３の割溝の中に金網イカダの金網１５と共に締付けられて固定される。特殊金具１３に力を与えないため、前記電線１２の上端部は、金網イカダ１４の浮上部分に巻回し固定される。
【００２３】
前記電線１２の下端部は、前記防食装置１の固定部３に２重巻き等によって巻回し固定され、その先端導線部は、前記端子６にカシメ接合される。従って、本体２を電線１２によって吊下するも端子６部に力が加わることは無い。
【００２４】
図４に示した取付け方式により、防食装置１は、フレキシブルな電線１２を介して海中に吊下された状態となり、各亜鉛板９は、金網１５に対し、導通状態となる。但し、金網イカダ１４は海中広域に亘るものであり、金網１５部分によっては電位差を生じる。そのため、金網イカダの各コーナ及び中間部に合計８ケ所に図示の防食装置１を均等に吊下支持するものとする。この点、従来例と変わる所が無い。
【００２５】
本発明では、金網イカダ１４の防食を行う期間中、全防食装置１について、常時亜鉛板９を必要量以上に保つことができる。例えば、防食装置１を取付けて後半年後に、亜鉛板９の１部に消耗がある場合、電線１２をたぐって引上げ、支持部８を外して、新たに亜鉛板９を追加設定することができる。
【００２６】
従来は、使い捨てタイプの防食装置の消耗が相当激しくても新たに合計８本の単品タイプの防食装置を投入できず、そのまま寿命を待つしかできなかった。しかし、本案では、更なる延命を図るべく、亜鉛板９を任意に追加でき、防食作用を永続できる利点がある。
【００２７】
また、１つの金網イカダで用いた防食装置１を引き上げて、他の金網イカダにいつでも利用できる利点がある。即ち、本発明の防食装置１は、本体２を繰り返し利用可能としている。また、亜鉛板９を任意に追加可能としている。従って、新たに設置された金網イカダ１４に対し、常時最大効果をもって防食対応することができる。
【００２８】
さらに、金網イカダの状況に応じて、亜鉛板９の量を任意に増加できる利点がある。例えば、海流により亜鉛消耗量の激しい金網イカダに対しては多目の亜鉛板９を設定することができる。消耗亜鉛板９を捨てる必要も無い。適宜の追加をもって自然に離脱するまで利用でき、無駄が無い。
【００２９】
本発明の金網イカダの防食装置は、上記実施の形態に限定されるものでは無く本発明の要旨を逸脱しない範囲で、適宜設計的変更を加えて実施できる。また、本防食装置１は、金網イカダ１４以外の物、例えば金属製の舟や金属製の部品等の防食に利用できる。
【００３０】
【発明の効果】
以上の通り、本発明は、海中に吊下浸漬される耐食性導電材料で形成される棒状本体に常時所定面積以上の面積となるよう、任意に定形サイズの亜鉛板を装着可能とするので、本体部分を繰り返し永久的に利用でき、常時所要面積を確保して金網イカダ等の寿命を最大限まで延長できる。
【００３１】
本体部分は、所要面積の亜鉛板をスペーサを介して装着するものであるので、比較的コンパクトに短く構成でき、輸送その他の取扱いに便利である。
【００３２】
本体を二股に分岐し、これに一対の穴を明けた亜鉛板を挿通する場合、海流中で亜鉛板を安定して支持できる。また、一対の穴を明けた亜鉛板として、現在規格品として船底の電食防止材として利用されている亜鉛板、又はその中古品をそのまま利用することができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る金網イカダの防食装置の縦断面図である。
【図２】本発明の一実施形態に係る金網イカダの防食装置に用いる亜鉛板の斜視図である。
【図３】本発明の一実施形態に係る金網イカダの防食装置に用いるスペーサの斜視図である。
【図４】金網イカダに対する防食装置の取付け方式を示す説明図である。
【符号の説明】
１ 防食装置
２ 本体
３ 固定部
４ 接続部
５Ａ，５Ｂ 直線部
６ 端子
７ 端子台
８ 支持部
９ 亜鉛板
１０ スペーサ
１１Ａ，１１Ｂ 穴
１２ 電線
１３ 特殊金具
１４ 金網イカダ
１５ 金網
Ａ 亜鉛板の縦寸法
Ｂ 亜鉛板の横寸法
Ｃ 亜鉛板の厚み
Ｄ スペーサの厚み
Ｐ 穴及び直線部の間隔
Ｈ１ 直線部の長さ
Ｈ２ 固定部及び接続部の長さ
Ｈ３ スペーサの高さ
Ｈ４ 亜鉛板の間隔
Ｈ５ 亜鉛板１セットの間隔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anticorrosion device for a wire mesh squid that is connected to the wire mesh squid using a flexible electric wire and is immersed in the sea to prevent corrosion of the wire mesh squid.
[0002]
[Prior art]
In fish farming, wire mesh squid (Ikes) made of wire mesh is frequently used in addition to polyethylene resin mesh. The wire mesh squid is galvanized to prevent premature corrosion due to electric corrosion. However, in the case of a galvanized wire mesh squid, the plating drops after 2 years, and then the wire mesh body rapidly corrodes.
[0003]
Therefore, conventionally, a newly set wire mesh squid has been attached for about one to two years, and a rod-shaped zinc rod has been attached in anticipation of galvanization being consumed. Thereby, the electric corrosion of wire nettle squid can be relieved and the lifetime can be extended one year or more.
[0004]
The conventional anticorrosive material of wire mesh squid has been structured as a one-time disposable part with a structure in which zinc is thickly coated around a long metal rod of about 1 m. For one wire nettle squid, it is common that eight parts are used as a set, including the corner and the middle. In terms of money, it is quite expensive and is currently sold for about 15,000 yen per bottle. In this case, 8 sets will cost 120,000 yen.
[0005]
However, the conventional wire nettle squid anticorrosive material used as described above is disposable, so it is difficult to add or replace, and it is appropriate to respond appropriately according to the corrosion situation of the wire nettle squid. It was difficult.
[0006]
For example, when installing 8 corrosives on a wire mesh squid that has been installed for 1 year, all products must be new, and it is not impossible to install a used product that was used elsewhere. difficult. This is because the state of zinc consumption must be checked during use, and if the used goods are consumed quickly, the part of the wire mesh is corroded early, and a hole is made in the wire mesh squid. In the end, it was difficult to reuse used products, and they were forced to dispose of them.
[0007]
In addition, when a new anticorrosion material is attached to a wire mesh that has been extended due to the use of anticorrosion material, the net may eventually be broken after the subsequent anticorrosion material is attached, and the anticorrosion material may remain as a used product. Conceivable. In this case, it is difficult to reuse the second-hand goods unless they are set at the same time.
[0008]
In addition, the effectiveness of anticorrosives should be different depending on the situation of wire mesh squid. In spite of this, in the past, the same use as before has been made by obtaining the same knowledge as before, and waste has been generated, and the life of the wire mesh squid has been shortened due to the lack of zinc. These matters are knowledge obtained by the present inventor performing actual diving work and observing the anticorrosion effect.
[0009]
[Problems to be solved by the invention]
In view of the above prior art, the present invention does not make the main body portion of the anticorrosive material disposable, and allows the zinc plate of a specified size to be added and set in a desired amount according to the situation of the wire mesh squid, and always has a sufficient amount. An object of the present invention is to provide an anti-corrosion device for wire mesh squid that can provide the amount of zinc and can maintain the maximum life of the wire mesh squid.
[0010]
[Means for Solving the Problems]
The present invention for solving the above problems is a corrosion prevention device for wire mesh squid that is connected to a metal portion of wire mesh squid using a flexible electric wire and is immersed in the sea to prevent corrosion of the wire mesh squid.
A rod-shaped body made of a corrosion-resistant conductive material, connected to one end of the electric wire, and suspended from the seawater,
A plurality of zinc plates inserted into the main body through a hole having a diameter slightly larger than the diameter of the main body provided on the plate surface,
A spacer that is formed in a ring shape whose inner diameter is slightly larger than the diameter of the main body using a corrosion-resistant conductive material, is interposed between the zinc plates that are inserted into the main body, and maintains a constant vertical distance thereof,
It is located at the lower end of the main body, and includes a support portion that supports the zinc plate and the spacer inserted through the main body at the lower end, so that all the zinc plates are always self-weight regardless of replacement and addition of the zinc plate and the degree of consumption of the zinc. It is characterized by having a stable structure that compresses downward. For example, the main body is bifurcated. In this case, a pair of holes are made in the surface of the zinc plate so as to be inserted into the main body.
[0011]
According to the anti-corrosion device for wire mesh squid of the present invention, the main body is formed of a corrosion-resistant conductive material such as stainless steel, so that it can be reused and can be used repeatedly for a long time without waste.
[0012]
In addition, it is a structure in which a standard-sized zinc plate is inserted into the main body through a spacer and supported by the support portion with its own weight, so even if the zinc plate is consumed, it is possible to always obtain close contact with each other up and down. Anticorrosive effect can be demonstrated. In addition, since the zinc plate can be arbitrarily set and added within the range of the maximum number that can be set in advance, a required amount of zinc can always be held according to the situation of the wire mesh squid. Furthermore, since the area of the zinc plate can be adjusted freely depending on the number of the zinc plates, a large area can be secured in the body rod formed relatively short.
[0013]
Furthermore, when the main body is bifurcated and a zinc plate having a pair of holes is inserted through the main body, the zinc plate can be stably supported in the ocean current. In addition, as a zinc plate with a pair of holes, the zinc plate currently used as a standard product for preventing electric corrosion on the bottom of the ship, or its used product can be used as it is, so by reusing the used zinc plate Resources can be used without waste.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a corrosion prevention device for a wire mesh squid according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of the entire apparatus, and FIGS. 2 and 3 are perspective views of components used therefor.
[0015]
As shown in FIG. 1, an anticorrosion device 1 for a wire mesh squid according to an embodiment of the present invention is mainly composed of a main body 2 formed of a stainless steel round bar having a diameter of 6 to 15 mm. The main body 2 includes a circular fixing portion 3 for fixing an electric wire, a connecting portion 4, and a straight portion 5 (5A, 5B) branched from the connecting portion 4 into two branches. Usually, it is suspended and used in the sea in the state which fixed the electric wire mentioned later to the fixing | fixed part 3. FIG. The length H1 of the straight portion 5 is formed to a length of about 30 to 50 cm. The interval is about 5 to 10 cm. The total length H1 + H2 including the length H2 of the fixed portion 3 and the connecting portion 4 is about 40 to 70 cm.
[0016]
In the middle of the connecting portion 4, there is a terminal block 7 provided with terminals 6 for connecting wires. The terminal block 7 of this example includes a bolt inserted into a small hole provided in the connection portion 4 and a nut screwed to the bolt.
[0017]
A pore is provided at the lower end of the straight portions 5A and 5B, and bolts and nuts that are inserted through the pore and constitute the support portion 8 are provided. The support portion 8 allows the zinc plate 9 or the spacer 10 to be inserted with the nut and bolt removed. Further, in a state where the bolt is inserted and the nut is hung, the inserted zinc plate 9 or the spacer 10 can be prevented from falling off, and the zinc plate 9 and the spacer 10 can be supported in the suspended state.
[0018]
As shown in FIG. 2, the zinc plate 9 is made of a zinc material having a fixed size of a vertical dimension B (5 to 7 cm), a horizontal dimension A (10 to 15 cm), and a thickness C (10 to 20 mm). The distance P between the pair of holes 11A and 11B is about 5 to 10 cm. The dimensions of the holes 11A and 11B are slightly larger than the diameters of the straight portions 5A and 5B. The interval between the straight portions 5A and 5B is set to this interval P. When using standard zinc material used to prevent electric corrosion on the bottom of the ship, the dimensions should be adjusted accordingly.
[0019]
As shown in FIG. 3, the spacer 10 defines the inner diameter as a value slightly larger than the diameter of the straight portions 5A and 5B. The thickness D is set to a sufficiently large value of about 2 to 5 mm in order to ensure contact with the zinc plate 9 positioned above and below. The height H3 is set to an appropriate value of 10 to 15 mm in order to set the distance H4 between the zinc plates 9 and 9 shown in FIG. 1 to an appropriate value of 5 to 10 mm. The reason why the distance H4 between the zinc plates 9 and 9 does not coincide is that the standard zinc plate 9 has a recess of about 5 mm for bolt fastening as shown in the figure.
[0020]
In FIG. 1 again, with the above configuration, the anticorrosion device 1 of the wire mesh squid of this example sequentially inserts the zinc plate 9 and the spacers 10 in a desired number with the support portion 8 removed, and the support portion 8 is inserted. By setting, the state shown in the figure can be obtained. The number of zinc plates to be mounted can be determined so as to have a surface area larger than this with reference to the zinc surface area of a conventional disposable anticorrosive material.
[0021]
For example, the surface area of the sacrificial material in the conventional disposable type When a 800 cm 2, the surface area of the zinc plate 9 per sheet is the case of 160cm 2, set five or more. In this example, the dimension H1 is determined so that a maximum of seven sheets can be set.
[0022]
As shown in FIG. 4, the upper end conductor portion of the flexible electric wire 12 is fastened and fixed together with the wire mesh 15 of the wire mesh squid in the split groove of the special metal fitting 13. In order not to apply force to the special metal fitting 13, the upper end portion of the electric wire 12 is wound and fixed around the floating portion of the wire mesh squid 14.
[0023]
The lower end portion of the electric wire 12 is wound and fixed to the fixing portion 3 of the anticorrosion device 1 by double winding or the like, and the leading end conductor portion is caulked and joined to the terminal 6. Therefore, although the main body 2 is suspended by the electric wire 12, no force is applied to the terminal 6 portion.
[0024]
With the attachment method shown in FIG. 4, the anticorrosion device 1 is suspended in the sea via the flexible electric wire 12, and each zinc plate 9 is in a conductive state with respect to the wire mesh 15. However, the wire mesh squid 14 extends over a wide area in the sea, and a potential difference occurs depending on the wire mesh 15 portion. For this reason, the anticorrosion devices 1 shown in the figure are equally suspended and supported at eight corners and intermediate portions of the wire mesh squid. In this respect, there is no difference from the conventional example.
[0025]
In the present invention, the zinc plate 9 can be always kept in a required amount or more with respect to the entire anticorrosion device 1 during the period of performing the anticorrosion of the wire mesh squid 14. For example, when a part of the zinc plate 9 is worn out after half a year after the anticorrosion device 1 is installed, the electric wire 12 is pulled up, the support portion 8 is removed, and a new zinc plate 9 can be additionally set. .
[0026]
Conventionally, even if the disposable type anticorrosion device is considerably consumed, a total of 8 single-type anticorrosion devices cannot be introduced, and the life can only be waited. However, in this proposal, there is an advantage that the zinc plate 9 can be arbitrarily added to further prolong the life and the anticorrosion action can be made permanent.
[0027]
Further, there is an advantage that the anticorrosion device 1 used in one wire mesh squid can be pulled up and used at any time for other wire mesh squid. That is, the anticorrosion device 1 of the present invention can use the main body 2 repeatedly. Moreover, the zinc plate 9 can be added arbitrarily. Therefore, it is possible to always cope with the anticorrosion with the maximum effect on the newly installed wire mesh squid 14.
[0028]
Furthermore, there is an advantage that the amount of the zinc plate 9 can be arbitrarily increased according to the situation of the wire mesh squid. For example, a large zinc plate 9 can be set for a wire nettle squid that has a high zinc consumption due to ocean currents. It is not necessary to discard the consumable zinc plate 9. It can be used until it leaves naturally with appropriate addition, and there is no waste.
[0029]
The anticorrosion device for wire nettle squid of the present invention is not limited to the above embodiment, and can be implemented with appropriate design changes without departing from the gist of the present invention. Moreover, this anticorrosion apparatus 1 can be used for anticorrosion of things other than the wire mesh squid 14, for example, metal boats and metal parts.
[0030]
【The invention's effect】
As described above, the present invention allows a fixed-size zinc plate to be attached to a rod-shaped main body formed of a corrosion-resistant conductive material suspended and immersed in the sea so that the area always exceeds a predetermined area. The part can be used repeatedly and permanently, ensuring the required area at all times and extending the life of wire mesh squid etc. to the maximum.
[0031]
Since the main body portion is provided with a zinc plate of a required area through a spacer, it can be constructed relatively compactly and conveniently for transportation and other handling.
[0032]
When the main body is bifurcated and a zinc plate with a pair of holes is inserted through it, the zinc plate can be stably supported in the ocean current. Moreover, as a zinc plate having a pair of holes, a zinc plate that is currently used as an electric corrosion prevention material on the ship bottom as a standard product, or a used product thereof can be used as it is.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an anticorrosion device for a wire mesh squid according to an embodiment of the present invention.
FIG. 2 is a perspective view of a zinc plate used in the corrosion prevention device for wire nettle squid according to one embodiment of the present invention.
FIG. 3 is a perspective view of a spacer used in the anticorrosion device for wire mesh squid according to one embodiment of the present invention.
FIG. 4 is an explanatory view showing an attachment method of the anticorrosion device to the wire mesh squid.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Corrosion prevention apparatus 2 Main body 3 Fixing part 4 Connection part 5A, 5B Straight part 6 Terminal 7 Terminal block 8 Support part 9 Zinc plate 10 Spacer 11A, 11B Hole 12 Electric wire 13 Special metal fitting 14 Metal mesh squid 15 Metal mesh A Vertical dimension B of zinc plate Lateral dimension of zinc plate C Thickness of zinc plate D Thickness of spacer P Space between hole and straight portion H1 Length of straight portion H2 Length of fixed portion and connecting portion H3 Height of spacer H4 Spacing of zinc plate H5 Zinc plate 1 Set spacing

Claims (2)

金網イカダの金属部分とフレキシブルな電線を介して接続され、海中浸漬されて前記金網イカダの防食を行う金網イカダの防食装置であって、
耐食性導電材料で棒状に形成され、前記電線の一端と接続されて前記海水中に吊下される本体と、
定型サイズの板状に形成され、その板面に備えた前記本体の直径より僅かに大きい径の穴を介して前記本体に挿通される複数の亜鉛板と、
耐食性導電材料を用いて内径が前記本体の直径より僅かに大きい径のリング状に形成され、前記本体に挿通される前記亜鉛板間に介在されてその上下間隔を一定に保つスペーサと、
前記本体の下端には、前記本体に挿通された亜鉛板及びスペーサを下端で支持する支持部を備えたことを特徴とする金網イカダの防食装置。It is connected to the metal part of the wire mesh squid using a flexible electric wire, and is a corrosion prevention device for the wire mesh squid that is immersed in the sea to prevent corrosion of the wire mesh squid.
A rod-shaped body made of a corrosion-resistant conductive material, connected to one end of the electric wire, and suspended from the seawater,
A plurality of zinc plates inserted into the main body through a hole having a diameter slightly larger than the diameter of the main body provided on the plate surface,
A spacer that is formed in a ring shape whose inner diameter is slightly larger than the diameter of the main body using a corrosion-resistant conductive material, is interposed between the zinc plates that are inserted into the main body, and maintains a constant vertical distance thereof,
An anticorrosion device for wire nettle squid, comprising a support portion for supporting a zinc plate and a spacer inserted through the main body at the lower end at the lower end of the main body. 請求項１に記載の金網イカダの防食装置において、前記本体は二股に分岐され、前記亜鉛板の板面には前記本体に挿通すべく一対の穴が明けられていることを特徴とする金網イカダの防食装置。The anticorrosion device for wire nettle squid according to claim 1, wherein the main body is bifurcated, and a pair of holes are formed in a plate surface of the zinc plate so as to be inserted into the main body. Anticorrosion equipment.
JP2002089691A 2002-03-27 2002-03-27 Corrosion protection device for wire mesh squid Expired - Fee Related JP3662890B2 (en)

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