CN104429894B - Neritic environment improves device - Google Patents

Neritic environment improves device Download PDF

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Publication number
CN104429894B
CN104429894B CN201410207146.3A CN201410207146A CN104429894B CN 104429894 B CN104429894 B CN 104429894B CN 201410207146 A CN201410207146 A CN 201410207146A CN 104429894 B CN104429894 B CN 104429894B
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fan
shaped support
support plate
sliding sleeve
reel
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CN104429894A (en
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俞存根
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management

Abstract

The invention discloses a kind of neritic environment and improve device, including passing sequentially through the float that stay cord is connected, bracing frame and balancing weight, described bracing frame includes center-pole, the sliding sleeve being slidably connected with center-pole and some fan-shaped support plates around center-pole circumferential directions, fan-shaped support plate is provided with some algae culture bricks, the bottom of described center-pole is provided with connection seat, described fan-shaped support plate is rotationally connected on vertical plane with being connected seat, it has been respectively articulated with support bar between sliding sleeve and each fan-shaped support plate upper surface, connected by extension spring between described sliding sleeve and connection seat, the corresponding lateral edges of adjacent fan-shaped support plate is mutually close to when sliding sleeve is in sliding stroke top dead centre, described float is provided with vent valve.It is desirable to provide one is easy to Sargassum seedling apposition growth, for the Sargassum seedling offer preferably protection of early growth period, it is easy to while improving Sargassum survival rate concentrate the neritic environment of input and convenient management to improve device.

Description

Neritic environment improves device
Technical field
The present invention relates to marine algae cultivation field, especially relate to a kind of neritic environment and improve device.
Background technology
Tangleweed between middle and high latitude marine site under Intertidal zone district and seabed, subtidal zone phytal zone grow thickly, as supporting plant and other planktons, necton and zoobenthos and the envirment factor that coexists therewith collectively forms offshore ecosystem.Be that the sea jungle supported has the highest primary productivity with tangleweed, concurrently form complicated animals and plants food web can the eutrophication salt such as enrichment of N, P, restrain " red tide " outburst, protect the marine environment.The economic worth that sea jungle is created is very big, and Sargassum itself has industry, edible, medical value, and sea jungle more provides Fish forage, the place kept away enemy, lay eggs.But, showing according to nearest observed result, sea jungle disappears, and seaweed bio multiformity declines simultaneously.
At present with regard to more existing researchs of reparation of sea jungle, mainly set up nature reserve area, reduce the destruction of human activity;Carry out the biological research of artificial propagation and related work, such as room heat source and seed intermediate rearing.During artificial breeding, the maturations that gather plant that algaes carry out Spawning in laboratory, zygote is sprouted more, are attached on adhesive substrate, grow seedling, though juvenile sporophyte attachment is good on the adherance such as shell, rock, but be difficult to by input in the seawater;Vinylon rope is made Seedling curtain and is kept hanging on sea, but Seedling strain growth is the most healthy and the strongest, management more inconvenience;Directly spraying spore fluid on the rock of Intertidal zone, spore is successfully sprouted and the probability of set growth is the least.
Summary of the invention
The present invention be in order to overcome in prior art in sea jungle, breed Sargassum time; deficiency is protected to cause Sargassum survival rate low the initial stage of Sargassum seedling; the deficiency of management inconvenience; provide one and be easy to Sargassum seedling apposition growth; for the Sargassum seedling offer preferably protection of early growth period, it is easy to while improving Sargassum survival rate concentrate the neritic environment of input and convenient management to improve device.
To achieve these goals, the present invention is by the following technical solutions:
A kind of neritic environment of the present invention improves device, including passing sequentially through the float that stay cord is connected, bracing frame and balancing weight, described bracing frame includes center-pole, the sliding sleeve being slidably connected with center-pole and some fan-shaped support plates around center-pole circumferential directions, fan-shaped support plate is provided with some algae culture bricks, the bottom of described center-pole is provided with connection seat, described fan-shaped support plate is rotationally connected on vertical plane with being connected seat, it has been respectively articulated with support bar between sliding sleeve and each fan-shaped support plate upper surface, connected by extension spring between described sliding sleeve and connection seat, the corresponding lateral edges of adjacent fan-shaped support plate is mutually close to when sliding sleeve is in sliding stroke top dead centre, described float is provided with vent valve.Float, bracing frame and breeding block are connected by stay cord, can put in sea water easily, by float and balancing weight effect, make bracing frame can be in suspended state, being convenient for observing and management, algae culture brick is in sea water region at the middle and upper levels, it is simple to Sargassum obtains sufficient sunlight and nutrient.When sliding sleeve is in sliding stroke top dead centre, fan-shaped support plate is mutually drawn close and is close to, it is simple to Sargassum seedling is apposition growth on algae culture brick, improves the survival rate of Sargassum seedling, plays preferable protective effect.When after seaweed growth, weight is continuously increased, fan-shaped support plate is under gravity around connecting seat rotation, sliding sleeve is made to overcome the elastic force of extension spring to move down, realize the expansion of fan-shaped support plate, gap between fan-shaped support plate increases, being separated from each other, the sea water flowing inside and outside bracing frame is more convenient, improves the speed of growth of Sargassum further.
As preferably, fairlead, the piston that can slide in fairlead inner chamber and the limit spring acting on piston that described vent valve is vertically arranged in being included in float, the upper end of the stay cord being connected with bracing frame is connected with piston, fairlead inner cavity top is provided with valve body, being communicated with the internal and extraneous bleed passage of float in valve body and control the spool of bleed passage opening and closing, the lower end of spool is provided with can be with the shade of piston contact and valve core reseting spring.So when vile weather occur, when stormy waves is bigger, piston can promote valve body, and float is carried out bleed air operation, it is achieved automatically sinking thus hiding stormy waves of bracing frame, and Sargassum plays good protection.
As preferably, described algae culture brick is evenly arranged on fan-shaped support plate, is provided with gap between adjacent algae culture brick, and described fan-shaped support plate is provided with some limbers corresponding with interstitial site.Limbers is set and can improve fan-shaped support plate both sides water body flow, it is achieved preferably water circulation.
As preferably, the top of described fairlead is provided with reel and small floating ball, and reel is wound with the recovery cable for connecting small floating ball, the reel detent mechanism being arranged over restriction reel rotation of described vent valve.
As preferably, described reel detent mechanism includes traveller and the traveller back-moving spring that can move upward under spool effect, and the top of traveller is provided with reel alignment pin and for fixing the linking arm of reel alignment pin.While piston promotes spool venting, spool promotes traveller, thus releases spacing for reel of reel detent mechanism, and small floating ball floats, in order to manager identifies thus salvages in time.
As preferably, the top of described fairlead is provided with traveller alignment pin and traveller alignment pin back-moving spring, and described traveller is axially provided with two locating slots matched with traveller alignment pin.The duty of traveller is limited, it is ensured that the timely unwrapping wire of reel by locating slot.
As preferably, the opening part of described bleed passage is provided with the check valve making the unidirectional aerofluxus outwardly of bleed passage.Check valve is set thus avoids sea water to enter in bleed passage.
As preferably, it is fixed with sliding sleeve positioning seat on described connection seat, the bottom of described sliding sleeve side is provided with stopper slot, the upper surface of sliding sleeve positioning seat is provided with and the deep gouge matched bottom sliding sleeve, the edge of described deep gouge is provided with the spill spin block of arranged off-centre, the side of spill spin block is provided with the card access surface matched with stopper slot, spill spin block is provided with the torsion spring that can make card access surface with stopper slot locking, the bottom of deep gouge is provided with can slide up and down triggering block and the triggering block back-moving spring that coordinates with triggering block, and triggering block is provided with the spill spin block alignment pin for position rotating block.After bracing frame is fully deployed, sliding sleeve can be positioned by triggering block, it is to avoid sliding sleeve sliding repeatedly, it is ensured that Sargassum stably grows.
As preferably, described fan-shaped support plate concave downward, support frame as described above its outer surface when fan-shaped support plate is mutually close to is spherical in shape.The surface area of fan-shaped support plate is improved by depression; algae culture brick forms inclination or vertical facade at fan-shaped support plate, imitates the environment of precipitous seabed cay, makes algae strain well-grown; metastable subenvironment can be built simultaneously, Sargassum seedling is played good protection.
Therefore, there is advantages that (1) conveniently carries out the concentration input of Sargassum seedling, convenient observation and management;(2) realize the initial stage protection of seedling, improve survival rate, it is ensured that the cultivation effect of Sargassum;(3) can automatically sink when high sea is attacked thus hide high sea, reduce the loss that Sargassum is destroyed, Sargassum is played good protection;(4) after sinking, small floating ball emerges, and conveniently salvages by reclaiming cable and reclaims;(5) algae culturing of next round can be put into after reclaiming and change algae culture brick, it is simple to gathering and the re-using of entirety of Sargassum, reduce use cost.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the semi-cutaway of bracing frame in Fig. 1 of the present invention;
Fig. 3 is the partial enlarged drawing of float in the present invention;
Fig. 4 is the partial enlarged drawing in Fig. 3 of the present invention at A;
Fig. 5 is the structural representation in the present invention after fan-shaped support plate expansion;
Fig. 6 is the partial enlarged drawing in Fig. 5 of the present invention at B.
nullIn figure,Float 1,Vent valve 2,Limit spring 201,Fairlead 202,Piston 203,Valve core reseting spring 204,Valve body 205,Small floating ball 206,Top cover labyrinth 207,Bleed passage 208,Spool 209,Lower sealing cover 210,Bracing frame 3,Extension spring 301,Center-pole 302,Sliding sleeve 303,Stopper slot 303a,Support bar 304,Fan-shaped support plate 305,Connect seat 306,Limbers 307,Balancing weight 4,Sliding sleeve positioning seat 5,Deep gouge 5a,Stay cord 6,Algae culture brick 7,Traveller back-moving spring 8,Traveller 9,Reel alignment pin 9a,Linking arm 9b,Reclaim cable 10,Reel 11,Traveller alignment pin 12,Traveller alignment pin back-moving spring 13,Check valve 14,Rotating shaft 15,Spill spin block 16,Handle 16a,Spill spin block location hole 16b,Torsion spring 17,Triggering block 18,Spill spin block alignment pin 18a,Triggering block back-moving spring 19.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
In embodiment as shown in Figure 1; a kind of neritic environment improves device; including float 1, bracing frame 3 and balancing weight 4; three is attached by stay cord; wherein; bracing frame 3 is as shown in Figure 2; including center-pole 302, sliding sleeve 303 and some fan-shaped support plates 305; center-pole 302 is vertically arranged; sliding sleeve 303 can slide up and down along center-pole 302; the bottom of center-pole 302 is provided with connection seat 306, and fan-shaped support plate 305 is connecting on seat 306 around center-pole 302 circumferential directions, can rotate relative to connection seat 306 on vertical plane.Fan-shaped support plate 305 is provided with some algae culture bricks 7, and algae culture brick 7 is evenly arranged on fan-shaped support plate 305, is provided with gap between adjacent algae culture brick 7, and fan-shaped support plate 305 is provided with some limbers 307 corresponding with interstitial site.It has been respectively articulated with support bar 304 between sliding sleeve 303 and each fan-shaped support plate 305 upper surface, connected by extension spring 301 between sliding sleeve 303 and connection seat 306, when fan-shaped support plate 305 rotates down, thus pulling support bar 304 to drive sliding sleeve 303 slide downward, extension spring 301 is stretched.The corresponding lateral edges of adjacent fan-shaped support plate 305 is mutually close to when sliding sleeve 303 is in sliding stroke top dead centre.Fan-shaped support plate 305 concave downward, thus improve the surface area of fan-shaped support plate 305, algae culture brick 7 forms inclination or vertical facade at fan-shaped support plate 305, imitate the environment of precipitous seabed cay, make algae strain well-grown, bracing frame 3 its outer surface when fan-shaped support plate 305 is mutually close to is spherical in shape, it is possible to slow down the ocean current impact for algae culture brick 7, is conducive to building metastable culture environment.
As shown in Figure 3, float 1 is provided with vent valve 2, fairlead 202, the piston 203 that can slide in fairlead 202 inner chamber and the limit spring 201 vertically arranged in being included in float 1, limit spring 201 is compression spring, connecting bottom piston 203 and fairlead 202, the upper end of the stay cord 6 being connected with bracing frame 3 in addition is connected with piston 203.Fairlead 202 upper end is fixed with top cover labyrinth 207, and fairlead 202 lower end is fixed with lower sealing cover 210, is sealed by float 1 by top cover labyrinth 207, lower sealing cover 210.Fairlead 202 inner cavity top is provided with valve body 205, it is communicated with internal the and extraneous bleed passage 208 of float 1 in valve body 205 and controls the spool 209 of bleed passage 208 opening and closing, also there is the venthole corresponding with bleed passage 208 on fairlead 202 and top cover labyrinth 207, thus form unimpeded gas circuit.The lower end of spool 209 is provided with the shade and valve core reseting spring 204 that can contact with piston 203, and when piston 203 upwardly spool 209, bleed passage 208 is opened by spool 209, and the air in float 1 can be discharged by bleed passage 208.Through hole can be offered to facilitate piston 203 to move up and down on piston 203.The opening part of bleed passage 208 is provided with check valve 14, and the air in the float 1 made can only pass through the unidirectional aerofluxus outwardly of bleed passage 208, and the air in the external world and sea water cannot be introduced in bleed passage 208.In addition, float 1 should be provided with valve to facilitate, it to be inflated.
As shown in Figure 4, the top of fairlead 202 is provided with reel 11 and small floating ball 206, and reel 11 is arranged on top cover labyrinth 207, and reel 11 is wound with the recovery cable 10 for connecting small floating ball 206.The reel detent mechanism being arranged over restriction reel 11 rotation of vent valve 2, including the traveller 9 that can move upward under spool 209 acts on and traveller back-moving spring 8, traveller 9 runs through top cover labyrinth 207, and is provided with reel alignment pin 9a on traveller 9 top and for fixing the linking arm 9b of reel alignment pin 9a.When spool 209 upwardly traveller 9, linking arm 9b drives reel alignment pin 9a to leave the hole, location on reel 11, thus releases the positioning states of reel 11, and reel 11 can be freely rotatable, and reclaiming cable 10 can freely pull out.The top of fairlead 202 is provided with traveller alignment pin 12 and traveller alignment pin back-moving spring 13, traveller 9 is axially provided with two locating slots matched with traveller alignment pin, the positioning states of the most corresponding reel 11 and freely rotatable state, thus prevent external environment for the maloperation of reel 11.
As it is shown in figure 5, sliding sleeve 303 is positioned at the lower dead center of sliding stroke after fan-shaped support plate 305 expansion, extension spring 301 is stretched, and now the aperture between fan-shaped support plate 305 is maximum.Shown in Fig. 6, connect and be fixed with sliding sleeve positioning seat 5 on seat 306, the bottom of sliding sleeve 303 side is provided with stopper slot 303a, the upper surface of sliding sleeve positioning seat 5 is provided with and the deep gouge 5a matched bottom sliding sleeve 303, the edge of deep gouge 5a is provided with the spill spin block 16 of arranged off-centre, the side of spill spin block 16 is provided with the card access surface matched with stopper slot 303a, and spill spin block 16 is provided with the torsion spring 17 that can make card access surface with stopper slot 303a locking, and spill spin block 16 is positioned by rotating shaft 15.The bottom of deep gouge 5a is provided with can slide up and down triggering block 18 and the triggering block back-moving spring 19 that coordinates with triggering block 18, and triggering block 18 is provided with the spill spin block alignment pin 18a for position rotating block 16.During original state, spill spin block alignment pin 18a acts on the hole 16b of spill spin block location so that the bottom of sliding sleeve 303 can enter in deep gouge 5a smoothly;When the bottom of sliding sleeve 303 can enter in deep gouge 5a smoothly, the bottom of sliding sleeve 303 presses downwards triggering block 18, making spill spin block alignment pin 18a leave spill spin block location hole 16b, spill spin block 16 rotates under torsion spring 17 acts on so that card access surface enters in stopper slot 303a and locks therewith.In addition it is additionally provided with the handle 16a of one on spill spin block 16, rotates spill spin block 16 to facilitate manual pulling handle 16a, release the lock-out state of sliding sleeve 303.
Algae culture brick 7 uses hexagon light foam concrete to make, and brick surface inserting has shell, barnacle, marial rocks fragment etc. so that it is the coarse holdfast being prone to algae is held, and presses close to ecosystem, makes algae strain be easier to set and breeding.Put into before marine usage, first algae culture brick modification of nylon rope is together in series, with sea water immersion 24 hours.Be inlaid with shell, marial rocks fragment matsurface upward, be laid at the bottom of nursery pond, wait Sargassum spore body sprout and attachment.When the specification of Sargassum seedling length to cultivation of can plunging into the commercial sea, the algae culture brick 7 being loaded with Sargassum seedling is moved on fan-shaped support plate 305.After completing algae culture brick, whole device can put into marine usage.Float 1 is positioned across the sea, at a distance of 1.5m or more sparse between each device with hawser.Physiological characteristics according to cultivated algae and the demand of different development stage, can adjust stay cord 6 length to adapt to upright position under water.
After the dispensing, along with after seaweed growth, weight is continuously increased, fan-shaped support plate 305 rotates around connection seat 306 under gravity so that sliding sleeve 303 overcomes the elastic force of extension spring 301 to move down, it is achieved the continuous expansion of fan-shaped support plate 305.The spacing of fan-shaped support plate 305 increases, and is separated from each other, in order to sea water forms water body exchange in being flowed into bracing frame 3.When the vile weathers such as typhoon come interim, marine stormy waves is bigger, to stir amplitude bigger along with sea for float 1, stay cord 6 stress is bigger, piston 203, after limit spring 201 resilience, can promote valve body 205, exits float 1, device overall buoyancy reduces so that bracing frame 3 automatically sinks thus hides stormy waves.Valve body 205 is while exitting, and also by the latch-release of reel 11, small floating ball 206 can be with emersion sea, to facilitate manager to salvage after in the past at vile weather.

Claims (9)

  1. null1. a neritic environment improves device,It is characterized in that,Including passing sequentially through the float (1) that stay cord is connected、Bracing frame (3) and balancing weight (4),Described bracing frame (3) includes center-pole (302)、The sliding sleeve (303) being slidably connected with center-pole (302) and some fan-shaped support plates (305) around center-pole (302) circumferential directions,Fan-shaped support plate (305) is provided with some algae culture bricks (7),The bottom of described center-pole (302) is provided with connection seat (306),Described fan-shaped support plate (305) is rotationally connected on vertical plane with being connected seat (306),Support bar (304) it has been respectively articulated with between sliding sleeve (303) and each fan-shaped support plate (305) upper surface,Connected by extension spring (301) between described sliding sleeve (303) and connection seat (306),The corresponding lateral edges of adjacent fan-shaped support plate is mutually close to when sliding sleeve (303) is in sliding stroke top dead centre,Described float (1) is provided with vent valve (2).
  2. Neritic environment the most according to claim 1 improves device, it is characterized in that, the fairlead (202) that described vent valve (2) is vertically arranged in being included in float (1), the piston (203) that can slide in fairlead (202) inner chamber and the limit spring (201) acting on piston (203), the upper end of the stay cord (6) being connected with bracing frame (3) is connected with piston (203), fairlead (202) inner cavity top is provided with valve body (205), it is communicated with internal the and extraneous bleed passage (208) of float (1) in valve body (205) and controls the spool (209) of bleed passage (208) opening and closing, the lower end of spool (209) is provided with the shade and valve core reseting spring (204) that can contact with piston (203).
  3. Neritic environment the most according to claim 1 improves device; it is characterized in that; described algae culture brick (7) is evenly arranged on fan-shaped support plate (305); being provided with gap between adjacent algae culture brick, described fan-shaped support plate (305) is provided with some limbers (307) corresponding with interstitial site.
  4. Neritic environment the most according to claim 2 improves device; it is characterized in that; the top of described fairlead (202) is provided with reel (11) and small floating ball (206); being wound with the recovery cable (10) for connecting small floating ball (206) on reel (11), being arranged over of described vent valve (2) limits reel (11) the reel detent mechanism that rotates.
  5. Neritic environment the most according to claim 4 improves device; it is characterized in that; described reel detent mechanism includes traveller (9) and the traveller back-moving spring (8) that can move upward under spool (209) acts on, and the top of traveller (9) is provided with reel alignment pin (9a) and is used for fixing the linking arm (9b) of reel alignment pin (9a).
  6. Neritic environment the most according to claim 5 improves device; it is characterized in that; the top of described fairlead (202) is provided with traveller alignment pin (12) and traveller alignment pin back-moving spring (13), and described traveller (9) is axially provided with two locating slots matched with traveller alignment pin (12).
  7. Neritic environment the most according to claim 2 improves device, it is characterized in that, the opening part of described bleed passage (208) is provided with the check valve (14) making the unidirectional aerofluxus outwardly of bleed passage (208).
  8. null8. improve device according to the neritic environment described in claim 1 or 2 or 3,It is characterized in that,It is fixed with sliding sleeve positioning seat (5) on described connection seat (306),The bottom of described sliding sleeve (303) side is provided with stopper slot (303a),The upper surface of sliding sleeve positioning seat (5) is provided with the deep gouge (5a) matched with sliding sleeve (303) bottom,The edge of described deep gouge (5a) is provided with the spill spin block (16) of arranged off-centre,The side of spill spin block (16) is provided with the card access surface matched with stopper slot (303a),Spill spin block (16) is provided with the torsion spring (17) that card access surface and stopper slot (303a) can be made to lock,The bottom of deep gouge (5a) is provided with the triggering block that can slide up and down (18) and the triggering block back-moving spring (19) coordinated with triggering block (18),Triggering block (18) is provided with the spill spin block alignment pin (18a) for position rotating block (16).
  9. 9. improving device according to the neritic environment described in claim 1 or 2 or 3, it is characterized in that, described fan-shaped support plate (305) concave downward, support frame as described above (3) its outer surface when fan-shaped support plate (305) is mutually close to is spherical in shape.
CN201410207146.3A 2014-05-15 2014-05-15 Neritic environment improves device Active CN104429894B (en)

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* Cited by examiner, † Cited by third party
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CN107568054B (en) * 2017-09-11 2019-07-23 浙江省海洋水产研究所 One kind being suitable for coastal waters algatron

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Publication number Priority date Publication date Assignee Title
JPH08191641A (en) * 1995-01-17 1996-07-30 Takeshita Sangyo Kk Device for drying lever net
CN1559934A (en) * 2004-03-11 2005-01-05 厦门大学 Method for biological repairing eutrophication of subtropical zone sea water fish culture in net cage area
CN1582635A (en) * 2004-06-06 2005-02-23 孙庆海 Floating rack for culturing laver
CN201045817Y (en) * 2007-06-12 2008-04-16 王本权 Air-inflated float
JP2010046054A (en) * 2008-07-22 2010-03-04 Miyata Engineering:Kk Bamboo fish bank
CN203058081U (en) * 2012-12-13 2013-07-17 浙江海洋学院 Path-separation type artificial fish reef

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08191641A (en) * 1995-01-17 1996-07-30 Takeshita Sangyo Kk Device for drying lever net
CN1559934A (en) * 2004-03-11 2005-01-05 厦门大学 Method for biological repairing eutrophication of subtropical zone sea water fish culture in net cage area
CN1582635A (en) * 2004-06-06 2005-02-23 孙庆海 Floating rack for culturing laver
CN201045817Y (en) * 2007-06-12 2008-04-16 王本权 Air-inflated float
JP2010046054A (en) * 2008-07-22 2010-03-04 Miyata Engineering:Kk Bamboo fish bank
CN203058081U (en) * 2012-12-13 2013-07-17 浙江海洋学院 Path-separation type artificial fish reef

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