CN114586748B - Coilia mystus fry collecting device - Google Patents
Coilia mystus fry collecting device Download PDFInfo
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- CN114586748B CN114586748B CN202210274685.3A CN202210274685A CN114586748B CN 114586748 B CN114586748 B CN 114586748B CN 202210274685 A CN202210274685 A CN 202210274685A CN 114586748 B CN114586748 B CN 114586748B
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- 241000825054 Coilia mystus Species 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 230000003139 buffering effect Effects 0.000 claims description 29
- 241000251468 Actinopterygii Species 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000000366 juvenile effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydroponics (AREA)
Abstract
The invention discloses a coilia mystus fry collecting device which comprises a main hull, wherein an auxiliary hull is arranged on the side surface of the main hull, the auxiliary hull is hinged with the edge of the main hull through a first connecting rod and a second connecting rod, a fry collecting assembly is arranged between the main hull and the auxiliary hull, an auxiliary floating body is arranged above the fry collecting assembly, flexible ropes are respectively arranged on the first connecting rod and the second connecting rod, the fry collecting assembly is provided with a fry collecting box, the fry collecting box is of a square frame structure, a reinforcing frame is arranged at the inlet end of the fry collecting box, elastic ropes are arranged on the reinforcing frame, and the elastic ropes are arranged in a staggered mode to form a net mouth; the invention collects the fry in the water area by the main hull and the fry collecting component, when the weight of the main hull is increased to a certain degree, the main hull can be supported by the auxiliary hull; the elastic ropes arranged at the inlet ends of the seedling collecting boxes in a staggered mode can intercept fishes or other sundries in water with large size in the seedling collecting process, and the fishes or other sundries are prevented from entering the collecting boxes.
Description
Technical Field
The invention relates to the technical field of fishery, in particular to a coilia mystus offspring seed collecting device.
Background
The coilia mystus mostly live in coastal shallow water areas or offshore areas, activities are dispersed and not clustered at ordinary times, the coilia mystus enters a breeding season, and then large groups of coilia mystus swim to a Yangtze river mouth, a Qiantangjiang river mouth and other saline and fresh water areas to lay eggs, the migration distance is short, the coilia mystus backdates to the Qiantangjiang river, and the coilia mystus generally ends in Hangzhou; the parent fish returns to the sea to live after spawning, the juvenile fish grows at the estuary and swims to the sea in winter, and the juvenile fish overwinter in the sea.
The invention discloses a fry catching device (CN 109156439A) which is provided with a notch at the tail part of a fish net and arranges the notch into a collecting net, the space of the fish net is gradually reduced towards the tail part of the net, and the notch is arranged into the collecting net, so that the fry can be prevented from flowing back, and the fry can be effectively and intensively caught into the collecting net, thereby being beneficial to catching the fry; but lack a device that can provide buoyancy support to the device as a whole and does not protect young fry, which can result in an increased fry injury rate.
Disclosure of Invention
The invention aims to provide a coilia mystus fry collecting device, and aims to solve the problems that an existing fry catching device is lack of buoyancy support and the damage rate of fries is increased.
In order to achieve the purpose, the invention provides the following technical scheme: the side face of the main hull is provided with an auxiliary hull, the auxiliary hull is hinged to the edge of the main hull through a first connecting rod and a second connecting rod, a seedling picking assembly is arranged between the main hull and the auxiliary hull, an auxiliary floating body is arranged above the seedling picking assembly, flexible ropes are arranged on the first connecting rod and the second connecting rod respectively, one end of each flexible rope penetrates through the first connecting rod to be connected with the seedling picking assembly, one end of each flexible rope penetrates through the second connecting rod to be connected with the seedling picking assembly, the auxiliary floating body is connected between two adjacent flexible ropes, the seedling picking assembly is provided with a seedling picking box, the seedling picking box is of a square frame structure, a reinforcing frame is arranged at the inlet end of the seedling picking box, elastic ropes are arranged on the reinforcing frame and are arranged in a staggered mode to form a net mouth;
the coilia mystus offspring seed collecting device can collect fries in a water area by matching with a fry collecting assembly through the main hull, and can flexibly adjust the height between the main hull and the auxiliary hull through the hinged structure of the first connecting rod and the second connecting rod; in the fry collecting process, as the number of collected fries is increased, river water required for temporarily storing the fries is increased, so that the weight of the whole main ship body is continuously increased, and when the weight of the main ship body is increased to a certain degree, the main ship body can be supported by the auxiliary ship body through buoyancy; the auxiliary ship bodies on the two sides increase the stability of the center of gravity of the main ship body in the water surface, and the risk of overturning the main ship body can be reduced when the main ship body faces stormy waves on the river surface; the flexible ropes arranged on the first connecting rod and the second connecting rod can adjust the seedling picking water depth of the suspended seedling picking assembly, and when the seedling picking water depth is determined, the inlet end of the seedling picking box can be connected with the main hull or the auxiliary hull by using the anchor rope, so that the problem that the seedling picking efficiency is poor due to the fact that the position of the seedling picking box moves is avoided; the elastic ropes arranged at the inlet ends of the seedling collecting boxes in a staggered mode can intercept fishes or other sundries in water with large size in the seedling collecting process, and the fishes or other sundries are prevented from entering the collecting boxes.
The auxiliary floating body is provided with a columnar cavity structure, a first piston is arranged at one end part of an inner cavity of the auxiliary floating body, a first piston rod is arranged on the first piston, the first piston rod penetrates through one end part of the inner cavity of the auxiliary floating body, a first connecting end is arranged on the first piston rod and is connected with the first connecting rod through a flexible rope, a second connecting end is arranged at the other end part of the auxiliary floating body and is connected with a second connecting rod through a flexible rope, a limiting ring is arranged in the middle of the auxiliary floating body and is provided with a conical sleeve-shaped structure, the small-diameter end of the limiting ring is close to the first piston, a spring part is arranged at the large-diameter end of the limiting ring, a second piston is fixedly connected with the other end of the spring part, a water permeable area is formed between the first piston and the limiting ring, a buoyancy cavity is formed between the limiting ring and the second connecting end, a plurality of through holes are arranged on the side wall of the auxiliary floating body in a winding manner, and are positioned in the water permeable area;
the auxiliary floating body mainly has the main function of floating on the water surface and providing buoyancy support for the whole seedling collection assembly connected with the auxiliary floating body below the auxiliary floating body, and particularly, the auxiliary floating body can be used for balancing the seedling collection height of the seedling collection assembly in the water on one hand, so that the problems that when fish seedlings are collected, more fish seedlings are arranged on one side and less fish seedlings are arranged on the other side, the stress on two sides of the main ship body is uneven, and the inclination of the ship body of the main ship body is easily caused are avoided; on the other hand, after the fry collecting component collects a large number of fries, because the weight difference between the inlet end and the tail part of the fry collecting box is large, the buoyancy chamber in the auxiliary floating body arranged near the upper part of the fry collecting box can provide buoyancy support for the tail part of the fry collecting component, so that the fry collecting component can still be in a horizontal state in water, and the problem that the gravity center of the device is unbalanced caused by the fact that the tail part of the fry collecting box droops downwards due to the fact that a large number of fries are caught by the tail part of the fry collecting box is avoided;
the auxiliary floating body can also play a role in protecting the seedling picking assembly and slowing down the oscillation, and particularly, on one hand, when the seedling picking assembly collides or scrapes the bottom of the main hull or the auxiliary hull above the seedling picking assembly through the auxiliary floating body, the auxiliary floating body plays a role in buffering, so that the vibration is prevented from being transmitted to the seedling picking assembly, the fry near the device is frightened, the fry which does not enter the seedling picking box escapes, and the collection efficiency is reduced; on the other hand, in the auxiliary floating body use, its inflow in the district of permeating water can be along with the wave in the river face or the rocking of seedling subassembly is adopted to the below and change, can be according to the inflow in district of permeating water, make the position of second piston change, adjust buoyancy cavity scope, and then automatically regulated buoyancy, and realize dynamic balance's effect, concretely, when the water volume increase in the district of permeating water, water pressure leads to second piston compression buoyancy cavity space, make the buoyancy cavity volume reduce, thereby lead to auxiliary floating body whole sinking, because auxiliary floating body is columniform, along with auxiliary floating body's sinking, its displacement is also increasing, can lead to self buoyancy to increase, thereby make auxiliary floating body come up, and then realize auxiliary floating body's dynamic balance effect in aqueous.
The top of the seedling collection box is provided with a first release area and a second release area, a check plate is arranged in the first release area and the second release area, a seedling collection net is arranged in the seedling collection box, the seedling collection net is inclined to the vertical plane of the inner wall surface of the seedling collection box in an anticlockwise direction by 30 degrees, a plurality of check nets are arranged on the seedling collection net, each check net has a conical net sleeve-shaped structure, and the large-diameter ends of the check nets are fixedly connected with the back water surface of the seedling collection net;
the check plate is closed at fry collection in-process, and after fry collection work, the check plate is opened manually to emit the big fish that the mistake was gone into, the collection seedling net that the slope set up makes itself receive the area increase of the surface of water, improves fry collection efficiency, and the check net that the surface of a back of the body of water was equipped with avoids the fry of having gathered to escape once more.
The middle part of the seedling collecting box is provided with a buffer assembly, the buffer assembly is arranged between the two seedling collecting nets, the buffer assembly is provided with a buffer bent plate, the buffer bent plate is provided with a convex surface and a concave surface, the convex surface of the buffer bent plate is provided with a rotating blade, two end parts of the rotating blade are in shaft connection with the edge of the buffer bent plate, and the concave surface of the buffer bent plate is provided with a lower concave part;
buffering subassembly cushions the rivers, avoid rivers to splash and take away the fry, cause the wasting of resources, it is lethal also to avoid too big rivers direct impact fry, it is concrete, buffering bent plate structure in the buffering subassembly, through its streamlined curved surface, play the effect of buffering to rivers, the commentaries on classics leaf that is equipped with on also utilizing it, further consume the kinetic energy of rivers, the initial velocity when rivers are located convex surface to the culmination has been reduced promptly, thereby the end speed that can reach when rivers flow to the minimum, the concave part down that is equipped with on the concave surface of buffering bent plate, also can consume the partial kinetic energy of rivers, the design of a plurality of buffering subassemblies, also can make a large amount of fries separate, avoid the fry gathering to cause the extrusion injure.
Compared with the prior art, the invention has the beneficial effects that:
1. the coilia mystus offspring seed collecting device can collect fries in a water area by the main hull and the fry collecting assembly, and when the weight of the main hull is increased to a certain degree, the main hull can be supported by buoyancy through the auxiliary hull; the elastic ropes arranged at the inlet end of the seedling collection box in a staggered manner can intercept fishes or other sundries in water with larger volume in the seedling collection process, so that the fishes or other sundries are prevented from entering the collection box;
2. the coilia mystus offspring seed collecting device can integrally provide buoyancy support for the offspring seed collecting component connected with the coilia mystus offspring seed collecting device below the coilia mystus offspring seed collecting device through the auxiliary floating body, and the problem that the gravity center of the device is unbalanced due to the fact that the tail of the offspring seed collecting box falls downwards due to the fact that a large number of fry are caught at the tail of the offspring seed collecting box is avoided;
3. the coilia mystus offspring seed collecting device can protect and slow down the oscillation of the offspring seed collecting assembly through the auxiliary floating body, and can automatically adjust the buoyancy according to the water inflow of the water permeable area in the using process of the auxiliary floating body and realize the effect of dynamic balance;
4. this coilia mystus seedling collection system can play the effect of buffering to the rivers through the buffering subassembly, also utilizes the commentaries on classics leaf that is equipped with on it, further consumes the kinetic energy of rivers, avoids rivers to splash and takes away the fry, causes the wasting of resources, also avoids too big rivers direct impact fry to die.
Drawings
Fig. 1 is a schematic structural diagram of a coilia mystus offspring seed collecting device according to a preferred embodiment of the present invention;
fig. 2 is a partial sectional view of the auxiliary floating body shown in fig. 1;
FIG. 3 is a schematic structural view of the stop collar shown in FIG. 2;
FIG. 4 is a schematic structural view of the seedling collection assembly shown in FIG. 1;
FIG. 5 is a partial cross-sectional view of the seedling raising chamber shown in FIG. 4;
FIG. 6 is a schematic view of the structure of the buffer net plate shown in FIG. 5;
FIG. 7 is an enlarged view of I-I shown in FIG. 5.
In the figure: 1. a main hull; 11. a secondary hull; 12. a first link; 13. a second link; 14. a flexible cord; 2. an auxiliary float; 21. a first piston; 22. a first piston rod; 23. a limiting ring; 24. a second piston; 25. a spring member; 26. a through hole; 27. a first connection end; 28. a second connection end; 29. a water permeable zone; 210. a buoyancy chamber; 3. seedling picking components; 31. seedling collecting box; 32. a reinforcing frame; 33. an elastic cord; 34. a seedling collecting net; 35. a first relief area; 36. a second relief area; 37. a backstop plate; 38. a check net; 39. a buffer assembly; 310. buffering the bent plate; 311. rotating the leaves; 312. a lower recess.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 4, an embodiment of the present invention includes: a collection device for coilia mystus offspring seeds comprises.
In order to achieve the purpose, the invention provides the following technical scheme: the coilia mystus offspring seed collecting device comprises a main hull 1, wherein an auxiliary hull 11 is arranged on the side surface of the main hull 1, the auxiliary hull 11 is hinged with the edge of the main hull 1 through a first connecting rod 12 and a second connecting rod 13, a seedling collecting assembly 3 is arranged between the main hull 1 and the auxiliary hull 11, an auxiliary floating body 2 is arranged above the seedling collecting assembly 3, flexible ropes 14 are respectively arranged on the first connecting rod 12 and the second connecting rod 13, one end part of each flexible rope 14 penetrates through the first connecting rod 12 to be connected with the seedling collecting assembly 3, one end part of each flexible rope 14 penetrates through the second connecting rod 13 to be connected with the seedling collecting assembly 3, the auxiliary floating body 2 is connected between two adjacent flexible ropes 14, each seedling collecting assembly 3 is provided with a seedling collecting box 31, each seedling collecting box 31 is of a square frame structure, a reinforcing frame 32 is arranged at the inlet end of each seedling collecting box 31, each reinforcing frame 32 is provided with elastic ropes 33, and the elastic ropes 33 are arranged in a staggered mode to form a net mouth;
the coilia mystus offspring seed collecting device can collect fries in a water area by the main hull 1 of the coilia mystus offspring seed collecting device in cooperation with the fry collecting component 3, and meanwhile, the height between the main hull 1 and the auxiliary hull 11 can be flexibly adjusted through the hinged structure of the first connecting rod 12 and the second connecting rod 13; in the fry collecting process, as the number of collected fries increases, the river water required for temporarily storing the fries also increases, so that the overall weight of the main hull 1 is continuously increased, and when the weight of the main hull 1 increases to a certain degree, the main hull 1 can be supported by buoyancy through the auxiliary hull 11; the auxiliary hulls 11 on the two sides increase the stability of the center of gravity of the main hull 1 on the water surface, and when the main hull 1 faces stormy waves on the river surface, the risk of overturning of the main hull 1 can be reduced; the flexible ropes 14 arranged on the first connecting rod 12 and the second connecting rod 13 can adjust the seedling picking water depth of the suspended seedling picking assembly 3, and when the seedling picking water depth is determined, the inlet end of the seedling picking box 31 can be connected with the main hull 1 or the auxiliary hull 11 by using the anchor rope, so that the problem that the seedling picking efficiency is poor due to the fact that the position of the seedling picking box 31 moves is avoided; the elastic ropes 33 arranged at the inlet ends of the seedling collecting boxes 31 in a staggered mode can intercept fishes or other sundries in water with large volume in the seedling collecting process, so that the fishes or other sundries are prevented from entering the collecting boxes.
Referring to fig. 1-3, the auxiliary floating body 2 has a cylindrical cavity structure, a first piston 21 is disposed at one end of an inner cavity of the auxiliary floating body 2, a first piston rod 22 is disposed on the first piston 21, a rod of the first piston 21 penetrates through one end of the inner cavity of the auxiliary floating body 2, a first connecting end 27 is disposed on the first piston rod 22, the first connecting end 27 is connected to the first connecting rod 12 through a flexible rope 14, a second connecting end 28 is disposed at the other end of the auxiliary floating body 2, the second connecting end 28 is connected to the second connecting rod 13 through a flexible rope 14, a limiting ring 23 is disposed in the middle of the auxiliary floating body 2, the limiting ring 23 has a conical sleeve-shaped structure, a small-diameter end of the limiting ring 23 is close to the first piston 21, a large-diameter end of the limiting ring 23 is provided with a spring part 25, another end of the limiting ring 25 is fixedly connected to the second piston 24, a water permeable area 29 is formed between the first piston 21 and the limiting ring 23, a buoyancy chamber 210 is formed between the limiting ring 23 and the second connecting end 28, a plurality of through holes 26 are circumferentially disposed on a side wall of the auxiliary floating body 2, and the through holes 26 are located in the water permeable area 29;
the auxiliary floating body 2 mainly has the main function of floating on the water surface and providing buoyancy support for the whole seedling collection assembly 3 connected with the auxiliary floating body below the auxiliary floating body, and particularly, the auxiliary floating body 2 can be used for balancing the seedling collection height of the seedling collection assembly 3 in the water on one hand, so that the problems that when fish seedlings are collected, more fish seedlings are arranged on one side and less fish seedlings are arranged on the other side, the stress on two sides of the main ship body 1 is uneven, and the ship body of the main ship body 1 is inclined easily caused are avoided; on the other hand, after the fry collecting assembly 3 collects a large number of fries, because the weight difference between the inlet end and the tail part of the fry collecting box 31 is large, the buoyancy chamber 210 in the auxiliary floating body 2 arranged above the fry collecting box 31 can provide buoyancy support for the tail part of the fry collecting assembly 3, so that the fry collecting assembly 3 can still be in a horizontal state in water, and the problem that the gravity center of the device is unbalanced because the tail part of the fry collecting box 31 catches a large number of fries and the tail part of the fry collecting box 31 falls downwards is avoided;
the auxiliary floating body 2 can also play a role in protecting the seedling picking assembly 3 and slowing down the oscillation, and particularly, on one hand, when the auxiliary floating body 2 collides or scrapes the seedling picking assembly 3 and the bottom of the main hull 1 or the auxiliary hull 11 above the seedling picking assembly, the auxiliary floating body plays a role in buffering, so that the vibration is prevented from being transmitted to the seedling picking assembly 3, the fry near the device is frightened, the fry which does not enter the seedling picking box 31 escapes, and the collection efficiency is reduced; on the other hand, in the use of auxiliary floating body 2, the inflow of its water permeable zone 29 can change along with the wave of the river or the rocking of seedling subassembly 3 is adopted to the below, can be according to the inflow of water permeable zone 29, make the position of second piston 24 change, adjust buoyancy chamber 210 scope, and then automatically regulated buoyancy, and realize dynamic balance's effect, it is concrete, when the water volume increase of water permeable zone 29, water pressure leads to second piston 24 compression buoyancy chamber 210 space, make buoyancy chamber 210 volume reduce, thereby lead to auxiliary floating body 2 to wholly sink, because auxiliary floating body 2 is columniform, along with auxiliary floating body 2's sinking, its displacement also increases, can lead to self buoyancy to increase, thereby make auxiliary floating body 2 come up, and then realize auxiliary floating body 2's dynamic balance effect in aqueous.
Referring to fig. 4, 5 and 7, a first release area 35 and a second release area 36 are arranged at the top of the seedling collection box 31, a check plate 37 is arranged inside the first release area 35 and the second release area 36, a seedling collection net 34 is arranged inside the seedling collection box 31, the seedling collection net 34 is arranged in a manner of being inclined to the vertical plane of the inner wall surface of the seedling collection box 31 in an anticlockwise direction by 30 degrees, a plurality of check nets 38 are arranged on the seedling collection net 34, the check nets 38 are in a conical net sleeve structure, and the large-diameter ends of the check nets 38 are fixedly connected with the back water surface of the seedling collection net 34;
check board 37 is closed at the fry collection process, and after fry collection work, check board 37 is opened manually to emit the big fish of mistake income, the collection seedling net 34 that the slope set up makes itself receive the area increase of the surface of water, improves fry collection efficiency, and the net 38 is prevented contrary to the surface of a back of the body of water is equipped with, avoids the fry of gathering to escape once more.
Referring to fig. 5-6, a buffer assembly 39 is disposed in the middle of the seedling collection box 31, the buffer assembly 39 is disposed between the two seedling collection nets 34, the buffer assembly 39 has a buffer bending plate 310, the buffer bending plate 310 has a convex surface and a concave surface, a rotating blade 311 is disposed on the convex surface of the buffer bending plate 310, two end portions of the rotating blade 311 are axially connected to the edge of the buffer bending plate 310, a concave portion 312 is disposed on the concave surface of the buffer bending plate 310, and the concave portion 312 has a hemispherical concave structure;
buffering subassembly 39 cushions rivers, avoid rivers to splash and take away the fry, cause the wasting of resources, it is dead also to avoid too big rivers direct impact fry, it is concrete, buffering bent plate 310 structure in the buffering subassembly 39, through its streamlined curved surface, play the effect of buffering to rivers, also utilize the commentaries on classics leaf 311 that is equipped with on it, further consume the kinetic energy of rivers, the initial velocity when rivers are located convex surface to the high point has been reduced promptly, thereby the last speed that can reach when rivers flow to the minimum, the concave part 312 that is equipped with on the concave surface of buffering bent plate 310, also can consume the partial kinetic energy of rivers, a plurality of buffering subassemblies 39's design, also can make a large amount of fries separate, avoid the fry gathering to cause the extrusion casualty.
The working principle is as follows:
the main ship body 1 is driven to the position close to a fry collecting water area, the auxiliary ship body 11 falls into the water surface by controlling the first connecting rod 12 and the second connecting rod 13, then the fry collecting component 3 and the auxiliary floating body 2 are connected through the flexible rope 14, and then the main ship body 1 is driven to collect the fries in a moving way or at fixed points; in the collection process, the fry enters the fry collecting box 31 through the inlet end of the fry collecting box 31, firstly passes through the first fry collecting net 34, is discharged from the non-return net 38 behind the fry collecting net, falls into the buffering bent plate 310 along the water flow, then moves along the slope surface of the buffering bent plate 310, sequentially passes through the concave part 312 of the concave part of the buffering bent plate 310 and the rotating blade 311 of the convex part, and then enters the second fry collecting net 34 along the water flow, after passing through the second fry collecting net 34, the fry is stored at the tail part of the fry collecting box 31, and according to different requirements, the fry collecting net 34 and the buffering bent plate 310 can be provided with multiple groups.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a collection device for coilia mystus offspring seeds, includes, main hull (1), the side of main hull (1) is equipped with vice hull (11), vice hull (11) through first connecting rod (12) and second connecting rod (13) with the edge of main hull (1) is articulated, be equipped with between main hull (1) and vice hull (11) and adopt seedling subassembly (3), the top of adopting seedling subassembly (3) is equipped with supplementary body (2), be equipped with flexible rope (14) on first connecting rod (12) and the second connecting rod (13) respectively, one end of flexible rope (14) passes first connecting rod (12) with adopt seedling subassembly (3) to be connected, one end of flexible rope (14) passes second connecting rod (13) with adopt seedling subassembly (3) to be connected, it is two adjacent be connected with between flexible rope (14) supplementary body (2), its characterized in that: the seedling picking assembly (3) is provided with a seedling picking box (31), the seedling picking box (31) is of a square frame structure, a reinforcing frame (32) is arranged at the inlet end of the seedling picking box (31), elastic ropes (33) are arranged on the reinforcing frame (32), and the elastic ropes (33) are arranged in a staggered mode to form a net opening; the auxiliary floating body (2) is of a columnar cavity structure, a first piston (21) is arranged at one end part of an inner cavity of the auxiliary floating body (2), a first piston rod (22) is arranged on the first piston (21), the first piston rod (22) penetrates through one end part of the inner cavity of the auxiliary floating body (2), a first connecting end (27) is arranged on the first piston rod (22), the first connecting end (27) is connected with the first connecting rod (12) through the flexible rope (14), a second connecting end (28) is arranged at the other end part of the auxiliary floating body (2), and the second connecting end (28) is connected with the second connecting rod (13) through the flexible rope (14).
2. The coilia mystus offspring collection device according to claim 1, wherein: the middle part of supplementary body (2) is equipped with spacing ring (23), spacing ring (23) have toper nested structure, the path end of spacing ring (23) is close to first piston (21), the big footpath end of spacing ring (23) is equipped with spring part (25), the other end fixedly connected with second piston (24) of spring part (25), first piston (21) with it crosses water district (29) to form between spacing ring (23), spacing ring (23) with form buoyancy chamber (210) between second link (28).
3. The coilia mystus offspring collection device according to claim 2, wherein: the side wall of the auxiliary floating body (2)
A plurality of through holes (26) are arranged around the upper ring, and the through holes (26) are positioned in the water permeable area (29).
4. The coilia mystus offspring seed collecting device according to claim 1, characterized in that: the top of the seedling collecting box (31)
The device is provided with a first release area (35) and a second release area (36), and a check plate (37) is arranged inside the first release area (35) and the second release area (36).
5. The coilia mystus offspring collection device according to claim 1, wherein: the seedling collecting box (31) is internally provided with a seedling collecting net (34), and the seedling collecting net (34) is inclined to the vertical plane of the inner wall surface of the seedling collecting box (31) in an anticlockwise direction by 30 degrees.
6. The coilia mystus offspring collection device according to claim 5, wherein: the seedling collection net (34) is provided with a plurality of anti-reversion nets (38), each anti-reversion net (38) is of a conical net sleeve-shaped structure, and the large-diameter end of each anti-reversion net (38) is fixedly connected with the back water surface of the seedling collection net (34).
7. The coilia mystus offspring collection device according to claim 5, wherein: adopt seedling case (31) middle part to be equipped with buffering subassembly (39), buffering subassembly (39) are located two between seedling collection net (34), buffering subassembly (39) have buffering bent plate (310), buffering bent plate (310) have convex surface and concave surface, be equipped with commentaries on classics leaf (311) on the convex surface of buffering bent plate (310), the both ends of commentaries on classics leaf (311) connect in the edge of buffering bent plate (310), the concave surface of buffering bent plate (310) is equipped with down concave part (312).
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