CN201349442Y - Industrial fish farming inductive feeding cylinder - Google Patents
Industrial fish farming inductive feeding cylinder Download PDFInfo
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- CN201349442Y CN201349442Y CNU2008202266550U CN200820226655U CN201349442Y CN 201349442 Y CN201349442 Y CN 201349442Y CN U2008202266550 U CNU2008202266550 U CN U2008202266550U CN 200820226655 U CN200820226655 U CN 200820226655U CN 201349442 Y CN201349442 Y CN 201349442Y
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- bait throwing
- tube
- fish farming
- induction type
- industrial fish
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Abstract
The utility model relates to an industrial fish farming inductive feeding cylinder, which comprises a cylinder body, a feeding control unit, an inductor and a hoisting component. The inductive feeding cylinder is characterized in that a body structure is composed of a cylinder cover and the cylinder body, the feeding control unit consists of a cross arm, a cross arm nut, a regulating rod, a regulating knob, a regulating rod nut and a chain, the sensor is a conductor consisting of a fixed ring nut, a fixed ring screw, a plug and an inductive bar, the inductive bar which dose not contact with the pool bottom is clipped onto a feed casting platform of the plug and can rock freely along with movement of fishes so as to lead the feed casting platform to rotate or vibrate, and then feed drops from feed dropping holes along the feed casting platform. The structure of the hosting component includes lifting the feed casting platform over the water level via a left PVC lifting rope and a right PVC lifting rope to realize feed casting, wherein the left PVC lifting rope and the right PVC lifting rope are fastened on the left and right of the cross arm of the cylinder body. The inductive feeding cylinder saves feed without power, is corrosion resistant and has fine feeding inductive effect, practicability and operability.
Description
Affiliated technical field
The utility model belongs to technical field of aquaculture, has related to the bait-laying device for fish that sea, fresh water plant fish farming system are used always, has invented a kind of industrial fish farming induction type bait throwing in tube.
Background technology
Along with the development of China's culture fishery, the sea, the freshwater aquiculture bait-laying device for fish is of a great variety, by the purposes scope pond, net cage, batch production bait throwing in machine arranged; Be divided into granular bait for fish, powdery bait, pasty fish food and bright material bait throwing in machine by the feed proterties of throwing something and feeding.The method that they adopt, existing machinery also has electronics, even computer control.At present, the bait throwing in machine of market sale has a common feature, is exactly all to rely on electric power to drive.One mentions electric power, just must be noted that voltage, mode of connection, and often inspection prevents electric leakage and outage; Break down in case run into the bait throwing in machine, need in time and producer or dealer contact, if dismounting voluntarily might cause danger or make fault to enlarge, the use to the bait throwing in machine has brought many troubles like this.Because the bait throwing in machine is positioned at moist limit, pond with regard to major part, and the most of steel product that adopts of bait throwing in machine causes protective paint to come off, get rusty and breakage through regular meeting, has rusty stains than the lighter, influences attractive in appearance; Severe patient is dilapidated, and it is unreliable to use, also dangerous.Most critical be cultured fishes, water quality environment, at any time be among the variation as water temperature, the fish situation of ingesting, therefore, present bait throwing in machine almost can't change according to these in time adjusts daily ration, feeding quantity, need the special messenger and nurse, could guarantee that fish obtain sufficient feed, and not cause feed waste.So very difficult to daily ration, feeding quantity regulation and control in time, bait throwing in blindness is big, has become to influence the key point of culture benefit, also be maximum technical barrier during the bait throwing in machine uses.
The purpose of this utility model is: overcoming the defective of prior art, be difficult to control as daily ration, feeding quantity, bait throwing in blindness is bigger; Often take place in a humid environment that protective paint comes off easily, framework and the easy corrosion of shell, breakage; And the management and maintenance difficulty etc.Therefore, the purpose of this utility model exactly for industrial fish farming a kind of saving feed be provided, need not power, corrosion-resistant, the bait throwing in inductive effects is good, has more the bait-laying device for fish of practicality and operability.
Summary of the invention
The purpose of this utility model is implemented by following scheme is concrete:
A kind of industrial fish farming induction type bait throwing in tube comprises cylindrical shell, bait throwing in control, inductor and lifting part four part-structures composition, it is characterized in that forming agent structure by cover [2] and cylindrical shell [5]; Bait throwing in control is by cross-arm [3] and cross-arm nut [4], and adjusting rod [12], adjusting knob [14] are formed with adjusting rod nut [15] and chain [6]; Inductor is by retainer ring nut [7], retainer ring screw rod [25], stops up [23] and inductive rod [10] parts combination sensing unit, inductive rod [10] is not at the bottom of the contact chamber, spreading platform [9] by being stuck in obstruction [23] can be with the fish activity Free Slosh, cause spreading platform [9] rotation or vibrations, feed by material spilling hole [8] along spreading platform [9] and landing; Lifting part is by spreading platform [9] is sling and being exceeded the water surface by fastening at the left PVC lifting rope [1] of cylindrical shell [5] left and right sides cross-arm [3] and right PVC lifting rope [11], bait throwing in being achieved.
Industrial fish farming induction type bait throwing in tube agent structure:
The cover [2] of industrial fish farming induction type bait throwing in tube is made flattened cylindrical shape, and surface plate binds, and makes level and smooth circular arc chamfering.Cylindrical shell [5] edge suitable for reading thickens reinforcement [16], to reduce the collision deformation that cylindrical shell [5] is subjected to external force.In order to make left PVC lifting rope [1] and right PVC lifting rope [11] when suspention, do not run into the cover [2] that is buckled in cylindrical shell [5] top; Cylindrical shell [5] edge suitable for reading each side thickens a reinforcing line [17] and protects lining [18], has also reinforced locating hole [24] intensity on every side whereby, reduces because of the stressed destruction of causing of cross-arm [3].Cylindrical shell [5] has been made suitable for reading big, the little truncated conical shape of end opening, and the tube end [20] is made cone shape, and the material spilling hole [8] of the tube end [20] central authorities is made cylindrical shape, is convenient to depanning after the making moulding.
Because the tube end [20] vertebral height exists the problem of the conical surface and horizontal sextant angle.Show according to experimental data: when fish fell with pellet (diameter is 1.6mm, 2.0mm, 2.5mm, 3.0mm and 4.0mm), the angle of the slump conical surface of Xing Chenging and horizontal plane and pellet diameter existed such relation naturally:
y＝-7.537x
2+40.124x-6.6037(r＝0.99754)
When the pellet diameter was 2.66mm, the slump conical surface of Xing Chenging and horizontal plane maximum angle were 46.79 ° naturally.
In order to allow pellet skid off naturally outside the tube, then the tube end [20] conical surface and horizontal sextant angle 〉=46.79 °.Otherwise the tube end [20] is material stock easily, even stops up easily.Therefore, a tube end [20] of industrial fish farming induction type bait throwing in tube is made cone shape, the tube end [20] conical surface and horizontal sextant angle 〉=46.79 °.
The pellet diameter also exists certain relation with taking up space.Show according to experimental data: fish is with the relation of pellet (diameter is 1.6mm, 2.0mm, 2.5mm, 3.0mm and 4.0mm) diameter and pellet (containing the space) proportion: y=-0.04x
2+ 0.2136x+0.4521 (r=0.99127)
When the pellet diameter is 2.67mm, pellet (containing the space) maximum specific weight is 0.737g/cm
3Pellet mean specific gravity 0.6984 ± 0.035g/cm
3Therefore, when calculating feed tube capacity, safer with mean specific gravity, maximum specific weight is thought of as the maximum that may hold.
The bait throwing in control of industrial fish farming induction type bait throwing in tube:
Cross-arm [3] middle part and the cross-arm nut [4] of industrial fish farming induction type bait throwing in tube are weldingly connected.Adjusting knob [14] middle part and knob nut [13] are weldingly connected.Adjusting rod [12] lower end and adjusting rod nut [15] are weldingly connected, and pass cross-arm nut [4], and adjusting rod [12] is connected with knob nut [13] spiral, and by the rotation of adjusting knob [14], adjusting rod [12] is able to lifting.After chain [6] upper end one ring set is gone in the adjusting rod nut [15], the welding seal ring, chain [6] lower end one ring adopts to be connected with retainer ring nut [7] with quadrat method.
The inductor of industrial fish farming induction type bait throwing in tube:
The retainer ring nut [7] of industrial fish farming induction type bait throwing in tube adopts with retainer ring screw rod [25] and is weldingly connected.Inductive rod [10] is to be made by hollow tube, and inductive rod [10] upper pipes internal tapping is connected with retainer ring screw rod [25]; The outer obstruction [23] of making a truncated conical shape of pipe, and make obstruction end face [21] smooth, form an overall structure.Spreading platform [9] is to be stuck in obstruction [23] middle part by conical surface apical pore [26], makes the spreading platform [9] can be in material spilling hole [8] lower end and obstruction [23] mid range, vertical tremor; To stop up [23] is axle, left rotation and right rotation.Spreading platform [9] is the conical surface that is made of a hollow cone, spreading platform [9] top is provided with a conical surface apical pore [26], conical surface middle part is provided with several conical surface material spilling holes [22], so that leak the feeding activity that material strengthens fish, cause that inductive rod [10] rocks, impel spreading platform [9] vibrations or rotation, feedstuff feeding is achieved.
Again because in order to allow pellet skid off naturally outside the tube, the tube end [20] conical surface and horizontal sextant angle 〉=46.79 °.The amplitude that inductive rod [10] is rocked is about 20 °.In order to ensure the free landing of pellet, spreading platform [9] conical surface and horizontal sextant angle 〉=26.79 ° get final product.Therefore, when spreading platform [9] conical surface and horizontal sextant angle 〉=26.79 °, just can guarantee the free landing of pellet.Stop up the gap of [23] and material spilling hole [8] lower end, can be regulated and control by adjusting rod [12] lifting.
The lifting part of industrial fish farming induction type bait throwing in tube is embodied as:
Industrial fish farming induction type bait throwing in tube be by slinging by fastening at the left PVC lifting rope [1] of cylindrical shell [5] left and right sides cross-arm [3] and right PVC lifting rope [11], make spreading platform [9] lower limb exceed the crawl water surface, and inductive rod [10] is avoided touching and is realized at the bottom of the crawl.
The significant effect of utility model is: industrial fish farming induction type bait throwing in tube on material, cylindrical shell [5], cover [2], spreading platform [9] and stop up [23] and adopted behind the forming and hardening tasteless, nontoxic 191
#Resin, 0.4
#Median fiber cloth, filler and prescription; According to planform, make mould, can realize producing in batches.
Owing to adopted 191
#Resin and 0.4
#The fiberglass material of median fiber cloth, industrial fish farming induction type bait throwing in tube has antiacid alkali, anti-aging, characteristics such as intensity is high, long service life, can be matched colors according to the color of hobby in addition, be made coating, can also be increased the attractive in appearance and fineness of outward appearance on the surface.
Manage from breeding production, the general crawl of industrial fish farming is more, though area is not very big, and the cultivation density height.All manually throw something and feed if culture, consuming time taking a lot of work, the feeding activity situation of fish is difficult to grasp.And adopt industrial fish farming induction type bait throwing in tube to reduce labor intensity greatly, and only consider to add the pellet total amount of throwing something and feeding, fish just can obtain feed as required automatically.The whole process of throwing something and feeding, need not to increase any power can realize.Therefore, both time saving and energy saving, can also play the effect of saving feed, this is its outstanding feature.In high standard industrial fish farming system, often be equipped with the feed transmission system, industrial fish farming induction type bait throwing in tube is daily ration, feeding quantity control unit improvement a little again, just can be used as the terminal bait-laying device for fish and uses.
On structure, the cylindrical shell [5] of industrial fish farming induction type bait throwing in tube has been made the barrel [19] of big, the little truncated conical shape of end opening suitable for reading, and a tube end [20] is made cone shape, is convenient to depanning after making moulding.Cylindrical shell [5] top has increased cover [2], is not afraid of Exposure to Sunlight, drenches with rain, indoors, all can use in the outdoor industrial fish farming.
Industrial fish farming induction type bait throwing in tube is provided with bait throwing in control, can utilize the rotation of adjusting knob [14] according to the size of pellet, adjusting rod [12] is able to lifting, thereby the gap of [23] and material spilling hole [8] lower end is stopped up in control, and the regulation feedstuff discharging speed is rationally arranged feeding volume.
The size of the spreading platform [9] of industrial fish farming induction type bait throwing in tube can and be cultured specification and change according to cultivation density, and it is changeable to make throwing spread area.Because spreading platform [9] conical surface middle part is provided with several conical surface material spilling holes [22], guaranteed that the pellet that falls appears on every side in inductive rod [10] incessantly, lure tuck seine to carry out feeding activity on every side around inductive rod [10], thereby inductive rod [10] produces and rocks, stopping up [23] also and then rocks, make spreading platform [9] shake or rotation, pellet falls in flakes along spreading platform [9] edge and conical surface material spilling hole [22].Strong more when ingesting of fish, it is just many more to fall feed; When ingesting of fish weakened, the pellet that falls just reduces.Stop up [23] and the gap of material spilling hole [8] lower end and adjust moderately, do not ingest or ingest when more weak, then can stop automatically throwing something and feeding fully fish.Have more pellet even if cylindrical shell [5] remains, situation is as the same.
In sum, the utility model industrial fish farming induction type bait throwing in tube, having solved puzzlement uses the daily ration, feeding quantity of bait throwing in machine to be difficult to control in breeding production, bait throwing in blindness is bigger, and bait throwing in machine protective paint comes off easily in a humid environment, technical problems such as easy corrosion of framework and shell and breakage have realized the purpose of this utility model preferably.
Description of drawings
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 proposes industrial fish farming induction type bait throwing in tube schematic diagram according to utility model
Fig. 2 proposes cover according to utility model to face face figure
Fig. 3 proposes the cover right side according to utility model to look face figure
Fig. 4 proposes cover according to utility model to overlook face figure
Fig. 5 proposes the spreading platform according to utility model to face face figure
Fig. 6 proposes the spreading platform right side according to utility model to look face figure
Fig. 7 proposes the spreading platform according to utility model to overlook face figure
Fig. 8 proposes cylindrical shell according to utility model to face face figure
Fig. 9 proposes the cylindrical shell right side according to utility model to look face figure
Figure 10 proposes cylindrical shell according to utility model to overlook face figure
Figure 11 proposes cross-arm according to utility model to face face figure
Figure 12 proposes the cross-arm right side according to utility model to look face figure
Figure 13 proposes cross-arm according to utility model to overlook face figure
Figure 14 proposes chain according to utility model to face face figure
Figure 15 proposes the chain right side according to utility model to look face figure
Figure 16 proposes inductive rod according to utility model to face face figure
Figure 17 proposes inductive rod according to utility model to overlook face figure
Figure 18 proposes adjusting knob according to utility model to face face figure
Figure 19 proposes adjusting knob according to utility model to overlook face figure
Figure 20 proposes adjusting rod according to utility model to face face figure
Figure 21 proposes the adjusting rod right side according to utility model to look face figure
Figure 22 proposes retainer ring according to utility model to face face figure
Figure 23 proposes the retainer ring right side according to utility model to look face figure
Below in conjunction with Fig. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23 embodiment according to the box original pattern bottom sampler of the utility model are described in further details.
At Fig. 1, in 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23, [1] left PVC lifting rope; [2] cover; [3] cross-arm; [4] cross-arm nut; [5] cylindrical shell; [6] chain; [7] retainer ring nut; [8] material spilling hole; [9] spreading platform; [10] inductive rod; [11] right PVC lifting rope; [12] adjusting rod; [13] knob nut; [14] adjusting knob; [15] adjusting rod nut; [16] reinforcement; [17] reinforcing line; [18] protect lining; [19] barrel; [20] the tube end; [21] stop up end face; [22] conical surface material spilling hole; [23] stop up; [24] locating hole; [25] retainer ring screw rod; [26] conical surface apical pore
Embodiment
As Fig. 1,2,3,4,5,6,7,8,9,10,11, shown in 12, the scientific and technical personnel of Shandong Fresh Water Aquatic Product Research Institute in our province industrial fish farming system successful Application industrial fish farming induction type bait throwing in tube, culture efficiency is remarkable.Be embodied as:
What the cylindrical shell [5] of industrial fish farming induction type bait throwing in tube, cover [2], spreading platform [9] and obstruction [23] were adopted is the fiberglass material of 191# resin and 0.4# median fiber cloth, and thickness is 0.5cm.Cylindrical shell [5] back cut diameter 40cm, lower port diameter 30cm, the high 43cm of tube.The tube end [20] is made cone shape, 48 ° of the tube end [20] conical surface and horizontal sextant angles.The volume of cylindrical shell is about 45L.Therefore, generally can feed about 30kg.
Reinforcing line [17] in cylindrical shell [5] top, the left and right sides is concordant with reinforcement [16] setting, and protecting lining [18] is 7cm for diameter, and thick is 3mm, and locating hole [24] aperture is 12.2mm.Cover [2] internal diameter is 42cm, highly is 4cm.Adjusting rod [12] lower end and adjusting rod nut [15] are weldingly connected.Cross-arm [3] diameter is 1.2cm, and total length is 56cm, and the centre is welded with the cross-arm nut [4] of a M12mm, and filament length 10cm is overlapped at the two ends of cross-arm [3] respectively.Can add nut fixes.Adjusting knob [14] diameter is 1cm, and total length is 20cm, and the centre is welded with the knob nut [13] of a M10mm.Adjusting rod [12] diameter is 1cm, and total length is 10cm, whole mantle fibers, and link to each other with M10mm adjusting rod nut [15].Chain [6] is that the sealing of 4mm connects 6～7 stainless steel metal rings for diameter, chain [6] upper and lower side respectively with M10mm adjusting rod nut [15] and M10mm retainer ring nut [7].Retainer ring nut [7] is weldingly connected with mantle fiber M14mm retainer ring screw rod [25].Inductive rod [10] is the PVC plastic tube of diameter 20, and the pipe internal tapping also is connected with M14mm retainer ring screw rod [25]; One is processed in the outer obstruction [23] with a truncated conical shape of pipe, stops up end face [21] circular diameter 3cm, and stopping up [23] lower end circular diameter is 7cm.
The spreading platform [9] of industrial fish farming induction type bait throwing in tube, its bottom circular diameter is 50cm, and the top is conical surface apical pore [26], and is identical with material spilling hole [8] aperture, and the aperture is 5cm; Conical surface middle part evenly is provided with 4 conical surface material spilling holes [22], and the aperture also is 5cm; Spreading platform [9] conical surface and horizontal sextant angle are 39 °, and being slightly larger than the natural downslide maximum angle is 26.79 °.
Adopt integral hoisting at industrial fish farming induction type bait throwing in tube, spreading platform [9] bottom is installed and will be exceeded water surface 15cm at least; Inductive rod [10] is at least apart from 15cm at the bottom of the pond, and total length is 120cm.
Like this, this embodiment has just reproduced industrial fish farming induction type bait throwing in tube, for industrial fish farming a kind of saving feed be provided, need not power, corrosion-resistant, the bait throwing in inductive effects is good, has more the bait-laying device for fish of practicality and operability.Technical staff of the same trade all can be with reference to enforcement.
Claims (7)
1, a kind of industrial fish farming induction type bait throwing in tube comprises cylindrical shell, bait throwing in control, inductor and lifting part four part-structures composition, it is characterized in that forming agent structure by cover [2] and cylindrical shell [5]; Bait throwing in control is by cross-arm [3] and cross-arm nut [4], and adjusting rod [12], adjusting knob [14] are formed with adjusting rod nut [15] and chain [6]; Inductor is by retainer ring nut [7], retainer ring screw rod [25], stops up [23] and inductive rod [10] parts combination sensing unit, inductive rod [10] is not at the bottom of the contact chamber, spreading platform [9] by being stuck in obstruction [23] can be with the fish activity Free Slosh, cause spreading platform [9] rotation or vibrations, feed by material spilling hole [8] along spreading platform [9] and landing; Lifting part is by spreading platform [9] is sling and being exceeded the water surface by fastening at the left PVC lifting rope [1] of cylindrical shell [5] left and right sides cross-arm [3] and right PVC lifting rope [11], bait throwing in being achieved.
2, a kind of industrial fish farming induction type bait throwing in tube according to claim 1, it is characterized in that: the cylindrical shell [5] of above-mentioned industrial fish farming induction type bait throwing in tube has been made suitable for reading big, the little truncated conical shape of end opening, the tube end [20] is made cone shape, the material spilling hole [8] of the tube end [20] central authorities is made cylindrical shape, is convenient to depanning after the making moulding.
3, a kind of industrial fish farming induction type bait throwing in tube according to claim 1 is characterized in that: a tube end [20] of above-mentioned industrial fish farming induction type bait throwing in tube is made cone shape, the tube end [20] conical surface and horizontal sextant angle 〉=46.79 °.
4, a kind of industrial fish farming induction type bait throwing in tube according to claim 1, it is characterized in that: adjusting rod [12] lower end and the adjusting rod nut [15] of above-mentioned industrial fish farming induction type bait throwing in tube are weldingly connected, and pass cross-arm nut [4], adjusting rod [12] is connected with knob nut [13] spiral, by the rotation of adjusting knob [14], adjusting rod [12] is able to lifting.
5, a kind of industrial fish farming induction type bait throwing in tube according to claim 1, it is characterized in that: the inductive rod [10] of above-mentioned industrial fish farming induction type bait throwing in tube is to be made by hollow tube, inductive rod [10] upper pipes internal tapping is connected with retainer ring screw rod [25]; The outer obstruction [23] of making a truncated conical shape of pipe, and make obstruction end face [21] smooth, form an overall structure.
6, a kind of industrial fish farming induction type bait throwing in tube according to claim 1, it is characterized in that: the spreading platform [9] of above-mentioned industrial fish farming induction type bait throwing in tube is to be stuck in obstruction [23] middle part by conical surface apical pore [26], make the spreading platform [9] can be in material spilling hole [8] lower end and obstruction [23] mid range, vertical tremor; To stop up [23] is axle, left rotation and right rotation.
7, a kind of industrial fish farming induction type bait throwing in tube according to claim 1 is characterized in that: when spreading platform [9] conical surface of above-mentioned industrial fish farming induction type bait throwing in tube and horizontal sextant angle 〉=26.79 °, just can guarantee the free landing of pellet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202266550U CN201349442Y (en) | 2008-12-12 | 2008-12-12 | Industrial fish farming inductive feeding cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202266550U CN201349442Y (en) | 2008-12-12 | 2008-12-12 | Industrial fish farming inductive feeding cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201349442Y true CN201349442Y (en) | 2009-11-25 |
Family
ID=41372837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202266550U Expired - Fee Related CN201349442Y (en) | 2008-12-12 | 2008-12-12 | Industrial fish farming inductive feeding cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201349442Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365521A (en) * | 2014-11-27 | 2015-02-25 | 中国水产科学研究院淡水渔业研究中心 | System for automatic induction and control of feeding amount of feed in aquaculture pond |
| CN105994095A (en) * | 2016-05-22 | 2016-10-12 | 上海海洋大学 | Fish culture feeding device and feeding method |
-
2008
- 2008-12-12 CN CNU2008202266550U patent/CN201349442Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104365521A (en) * | 2014-11-27 | 2015-02-25 | 中国水产科学研究院淡水渔业研究中心 | System for automatic induction and control of feeding amount of feed in aquaculture pond |
| CN104365521B (en) * | 2014-11-27 | 2016-03-30 | 中国水产科学研究院淡水渔业研究中心 | A kind of automatic induction controls the system of cultivating pool feedstuff feeding amount |
| CN105994095A (en) * | 2016-05-22 | 2016-10-12 | 上海海洋大学 | Fish culture feeding device and feeding method |
| CN105994095B (en) * | 2016-05-22 | 2022-04-05 | 上海海洋大学 | Fish culture feeding device and feeding method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20101212 |