Search

CN-121970712-A - Fry screening device for aquaculture and application method thereof

CN121970712ACN 121970712 ACN121970712 ACN 121970712ACN-121970712-A

Abstract

The invention discloses a fish fry screening device for aquaculture and a use method thereof, which belong to the technical field of aquaculture, the fish fry enters into a region between the inner wall of a culture pond and a central cylinder, the central cylinder drives a sliding column to slide in a wave groove in the process of driving a movable frame to rotate, the movable frame drives an internal screening assembly to synchronously move in the process of circular movement and up-down reciprocating lifting movement, screening stop rods in the screening assembly form a plurality of screening channels with different specifications, the purpose of continuously screening the fish fry with multiple specifications is realized, the up-down lifting movement of the movable frame can drive water flow to slightly fluctuate, on one hand, the phenomenon that mucus and excrement on the surface of the fish fry adhere to the screening stop rods to cause blockage is avoided, on the other hand, the natural water flow environment can be simulated, the stress reaction of the fish fry is reduced, the activity of the fish fry is ensured, the fish fry loss in the screening process is also reduced, the fish fry can be rapidly driven to other screening regions, and the efficient and stable screening work of the fish fry is facilitated.

Inventors

  • WU CHAOYU
  • WU HUIJUAN
  • CHEN HEXIN

Assignees

  • 黄石群林渔业科技有限公司

Dates

Publication Date
20260505
Application Date
20260319

Claims (10)

  1. 1. A fish fry screening device for aquaculture comprises a culture pond (1), and is characterized in that a screening collecting assembly (2) is arranged at the bottom of the culture pond (1), a supporting frame (3) is fixed at the outer part of the culture pond (1), a motor (4) is arranged in the middle of the supporting frame (3), a seedling placing assembly (5) is fixedly connected to an output shaft of the motor (4), the seedling placing assembly (5) is rotatably connected to the bottom of the culture pond (1), four sliding supporting assemblies (6) are fixed at the outer part of the seedling placing assembly (5), a movable frame (7) is fixed at one side of the sliding supporting assemblies (6) far away from the seedling placing assembly (5), a groove (8) is formed in the top of the inner wall of the movable frame (7), a screening assembly (9) is rotatably arranged at the inner part of the groove (8), a limit groove (11) is formed in the bottom of the inner wall of the movable frame (7) corresponding to the lower part of the screening assembly (9), the bottom of the screening assembly (9) is slidably connected to the limit groove (11), two telescopic blocking assemblies (12) are arranged at two sides of the inner wall (7) respectively, two sides of the telescopic blocking assemblies (12) are close to one side of the telescopic blocking assemblies (12), the movable frame (7) is fixed with a sliding column (13) at a position close to the inner wall of the culture pond (1), a wave groove (14) is formed in the upper part of the inner wall of the culture pond (1) corresponding to the position of the sliding column (13), and the sliding column (13) is slidably connected in the wave groove (14).
  2. 2. A fish fry screening device for aquaculture according to claim 1, wherein the wave groove (14) is formed by combining and communicating a plurality of V-shaped grooves, the plurality of V-shaped grooves enclose the inner wall of the culture pond (1) for a circle, and the sliding column (13) is slidably connected in one of the V-shaped grooves.
  3. 3. The fish fry screening device for aquaculture according to claim 1, wherein the screening and collecting assembly (2) comprises a collecting box (2001), the collecting box (2001) is fixedly connected with the bottom of the aquaculture pond (1), four sorting grooves (2002) are formed in the collecting box (2001), a drawer type fry receiving box (2003) is slidably mounted in the sorting grooves (2002), and a handle is arranged in front of the drawer type fry receiving box (2003).
  4. 4. A fish fry screening device for aquaculture according to claim 3, wherein the drain valve (16) is installed at the lower position of one side of the culture pond (1), two fry release valves (15) are installed at the inner and outer positions of the bottom of the culture pond (1) located in the fry release assembly (5), the fry release valves (15) on two sides are located between the inner wall of the culture pond (1) and the fry release assembly (5), and the bottoms of the four fry release valves (15) are communicated with four drawer-type fry receiving boxes (2003) respectively.
  5. 5. The fry screening device for aquaculture according to claim 1, wherein the fry screening device for aquaculture is characterized in that the fry screening device Miao Zujian (5) comprises a central barrel (501), a support bearing (502) is rotatably connected to the bottom of the central barrel (501), the support bearing (502) is clamped at the bottom of the inner wall of the aquaculture pond (1), a plurality of fry passing holes (503) are formed in the outer portion of the central barrel (501), a fixing rod (504) is fixed at the top opening of the central barrel (501), a connecting shaft (505) is fixedly penetrated in the middle of the fixing rod (504), the top end of the connecting shaft (505) is fixed with an output shaft of the motor (4), and a plurality of spoilers (506) are mounted outside the connecting shaft (505).
  6. 6. The fry screening device for aquaculture according to claim 5, wherein the sliding support assembly (6) comprises a support base (601), one side of the support base (601) is fixedly connected with the outside of the central cylinder (501), a sliding hole (602) is formed in the support base (601), a sliding seat (603) is slidably connected in the sliding hole (602), one side of the sliding seat (603) is fixed with the movable frame (7), a sliding rod (605) and a limiting rod (604) penetrate through the middle part and two sides of the sliding seat (603) respectively, two ends of the sliding rod (605) and the limiting rod (604) are fixed with the top and the bottom of the inner wall of the sliding hole (602) respectively, springs (606) are sleeved at the upper position and the lower position outside the sliding rod (605) respectively, and two ends of the springs (606) are fixedly connected with the inner wall of the sliding hole (602) and the opposite surface of the sliding seat (603).
  7. 7. The fry screening device for aquaculture according to claim 1, wherein the screening assembly (9) comprises a support roller (901), two ends of the support roller (901) are respectively connected in the groove (8) through shaft sleeve rotation, an annular groove (902) is formed in the middle of the support roller (901), a plurality of spiral grooves (903) are formed in two outer sides of the support roller (901), the plurality of spiral grooves (903) on two sides are symmetrically arranged with respect to the annular groove (902), and the spiral length of the plurality of spiral grooves (903) on the same side is gradually increased from the middle of the support roller (901) towards the edge.
  8. 8. The fry screening device for aquaculture according to claim 7, wherein the annular groove (902) and the spiral grooves (903) are respectively and slidably connected with a sliding column (904), sliding blocks (905) are fixed at the bottom ends of the sliding columns (904), guide rods (907) are arranged on two sides of the inner parts of the sliding blocks (905) in a penetrating manner, two guide rods (907) are fixed between the inner walls of the movable frame (7), screening stop rods (906) are fixedly connected to the bottoms of the sliding blocks (905), the bottom ends of the screening stop rods (906) extend into limit grooves (11) at the bottoms of the movable frame (7), one ends of the supporting rollers (901) penetrate through the grooves (8) and are fixedly provided with rotating handles (908), screw rods (909) are arranged at the edges of the rotating handles (908) in a threaded manner, limit plates (10) are fixed at the positions of one sides of the movable frame (7) corresponding to the rotating handles (908), and a plurality of clamping holes are formed in the edges of the limit plates (10), and the screw rods (909) are clamped in one of the clamping holes.
  9. 9. The fry screening device for aquaculture and the use method thereof according to claim 8, wherein the telescopic blocking component (12) comprises a winding rod (121), two ends of the winding rod (121) are respectively sleeved with rotary bearings (123), the two rotary bearings (123) are respectively clamped at the top and the bottom of the inner wall of the movable frame (7), two ends of the winding rod (121) are respectively sleeved with a torsion spring (124), two ends of the torsion spring (124) are respectively fixed with the winding rod (121) and the inner wall of the movable frame (7), an isolating cloth (122) is fixed outside the winding rod (121), and the other side of the isolating cloth (122) is fixed with a screening stop lever (906) at the most edge.
  10. 10. Use of a fry screening device for aquaculture according to any one of claims 1-9, characterized in that the use comprises the steps of: Firstly, according to the variety and target classification specification of fish fry to be screened, parameter adjustment of the device is completed, a rotating handle (908) of a screening assembly (9) is rotated to drive a supporting roller (901) to rotate, an annular groove (902) on the surface of the supporting roller (901) and spiral grooves (903) on two sides synchronously rotate, the spiral length of the spiral groove (903) on the same side is gradually increased from the middle part to the edge of the supporting roller (901), when the supporting roller (901) rotates, a sliding column (904) in the groove slides along the spiral groove (903), a sliding block (905) is driven to transversely move along a guide rod (907), screening stop rods (906) at the bottom of the sliding block (905) synchronously move along with the guide rod, and the distance between two adjacent screening stop rods (906) is adjusted, wherein the distance corresponds to the specification of the target fish fry; After the distance between the screening stop rods (906) is adjusted, screw rods (909) at the edge of a rotating handle (908) are screwed, the screw rods (909) are clamped into clamping holes corresponding to a limiting disc (10), fixing of a supporting roller (901) is achieved, distance deviation caused by rotation of the supporting roller (901) in the screening process is avoided, screening specification stability is guaranteed, meanwhile, a telescopic blocking assembly (12) is synchronously adjusted in an adapting mode, when the screening stop rods (906) transversely move, the isolating cloth (122) is pulled to be unfolded or contracted, a winding rod (121) rotates under the pulling force of the isolating cloth (122), a torsion spring (124) is elastically deformed, the winding rod (121) is pulled by the aid of resilience force of the torsion spring (124), the isolating cloth (122) is always tensioned with the screening stop rods (906) at the most edge, fish fries are prevented from escaping from two sides of the screening stop rods (906) at the most edge, and screening effectiveness is guaranteed; Through throwing the fry to be screened into the central barrel (501) from the top opening of the central barrel (501), a plurality of fry passing holes (503) are formed in the outer part of the central barrel (501), the fry can swim out of the central barrel (501) through the fry passing holes (503), enter the area between the inner wall of the culture pond (1) and the central barrel (501), namely, the screening area where four movable frames (7) are positioned, a motor (4) arranged in the middle of a supporting frame (3) is started, an output shaft of the motor (4) drives a connecting shaft (505) to rotate, the bottom end of the connecting shaft (505) is fixedly connected with the central barrel (501) of a fry placing component (5), and the bottom of the central barrel (501) is rotationally connected to the bottom of the culture pond (1) through a supporting bearing (502), so that the connecting shaft (505) can drive the central barrel (501) to synchronously rotate, and a plurality of spoilers (506) arranged outside the connecting shaft (505) rotate along with the connecting shaft (505) to play a role in preventing the fry from gathering in one place and ensuring even distribution of the fry; Simultaneously, four sliding support components (6) fixed outside the central cylinder (501) synchronously rotate along with the central cylinder (501), one side of the sliding support components (6) away from the central cylinder (501) is fixedly connected with the movable frame (7), so that the four movable frames (7) can do circular motion around the central cylinder (501), one side of the movable frame (7) close to the inner wall of the culture pond (1) is fixedly provided with a sliding column (13), the sliding column (13) is in sliding connection in a wave groove (14) above the inner wall of the culture pond (1), the wave groove (14) is surrounded by a plurality of V-shaped grooves which are mutually communicated, when the movable frame (7) does circular motion along the central cylinder (501), the sliding column (13) slides along the V-shaped grooves, under the action of high and low fluctuation of the V-shaped grooves, the movable frame (7) is driven to do up-down reciprocating lifting motion, when the sliding column (13) slides to the highest point of the V-shaped grooves, the movable frame (7) is lifted, when the sliding column (13) slides to the lowest point of the V-shaped grooves, the sliding column (13) slides down, the movable frame (7) is lowered, the sliding seat (603) is driven by the sliding seat (603) to realize periodic movement of the sliding seat (603) along the sliding seat (603), the spring (606) sleeved outside the slide bar (605) stretches or compresses along with the slide bar, the elastic buffering of the spring (606) is utilized to reduce the impact force in the lifting process of the movable frame (7), the mechanical damage to the fry caused by excessive shaking of the movable frame (7) is prevented, and meanwhile, the stability of the movement of the movable frame (7) is ensured; Due to the continuous rotation of the spoilers (506), the fries can be uniformly dispersed into the four movable frames (7), the accumulation of partial fries is avoided, the screening uniformity is ensured, the movable frames (7) drive the internal screening assemblies (9) to synchronously move in the process of circular movement and up-down reciprocating lifting movement, the screening stop rods (906) in the screening assemblies (9) form a plurality of screening channels with different specifications, when the fries move to the screening stop rods (906) along with water flow, the fries with different specifications are distributed in the central cylinder (501) and the areas between the two adjacent movable frames (7) through the corresponding screening channels, the synchronous classification of the fries with different specifications is realized, in the screening process, the isolating cloth (122) is always in a tight state, the fries with different specifications are limited in the corresponding screening areas, the fries with different specifications are prevented from being mixed, and the classification precision is ensured; Accomplish classified fry, can be under rivers and movable frame (7) motion drive down, move to breed pond (1) bottom corresponding region respectively, breed pond (1) bottom is located the inside and outside position of putting seedling subassembly (5) and installs respectively two seedling valves (15) of putting, seedling valves (15) of both sides are located between breed pond (1) inner wall and seedling subassembly (5), and the bottom of four seedling valves (15) is put seedling box (2003) switch-on with drawer type in four sorting tank (2002) of collecting box (2001) respectively, at this moment, open four seedling valves (15), the fry of different specifications can be through corresponding seedling valve (15) of putting, flow into in corresponding drawer type seedling box (2003) of receiving, realize the concentrated collection of classified fry.

Description

Fry screening device for aquaculture and application method thereof Technical Field The invention relates to the technical field of aquaculture, in particular to a fry screening device for aquaculture and a using method thereof. Background In the aquaculture industry, fry screening is a key link penetrating through the whole aquaculture process, directly determines the fry survival rate, the subsequent growth uniformity and the aquaculture economic benefit, and is a basic premise for realizing standardized and large-scale aquaculture, and along with the development of aquaculture to large-scale and intensive directions, partial mechanized fry screening devices are also appeared on the market, but the existing mechanized devices still have obvious technical shortboards: The sieve mesh size of partial device is fixed, only can screen the fry of single specification, and the suitability is poor, needs periodic replacement screening structure, has increased breed screening cost, is difficult to realize the synchronous screening of many specifications, generally needs the batch to carry out independent screening to the fry of different specifications, has prolonged whole screening cycle, influences screening efficiency, makes it unable to realize continuous screening operation, is unfavorable for the high-efficient, the stable screening work to the fry. Disclosure of Invention The invention aims to provide a fry screening device for aquaculture and a use method thereof, so as to solve the problems that the prior equipment provided in the background technology is difficult to realize multi-specification synchronous screening, and usually, the fries with different specifications are required to be screened individually in batches, so that the whole screening period is prolonged, the screening efficiency is influenced, and continuous screening operation cannot be realized. In order to achieve the above purpose, the present invention provides the following technical solutions: a fry sieving mechanism for aquaculture, including breeding the pond, breed the bottom in pond and install screening collection subassembly, breed the external fixation in pond has the support frame, the mid-mounting of support frame has the motor, the output shaft fixedly connected with of motor puts the seedling subassembly, it rotates the bottom of connecting in breeding the pond to put the seedling subassembly, the outside of putting the seedling subassembly is fixed with four sliding support assemblies, the sliding support subassembly is kept away from one side of putting the seedling subassembly and is fixed with movable frame, the top of movable frame inner wall is seted up flutedly, the screening subassembly is installed in recess internal rotation, the bottom of movable frame inner wall corresponds the below position of screening subassembly and sets up the spacing groove, the bottom sliding connection of screening subassembly is in the spacing inslot, flexible blocking subassembly is installed respectively to the both sides of movable frame inner wall, and one side that two flexible blocking subassemblies are close to each other is fixed with the both sides of screening subassembly, the movable frame is close to the fixed with the slip post in the position of breeding the pond inner wall, the top of breeding the pond corresponds the position of slip post and sets up the wave groove, slip post sliding connection is in the groove. As a further scheme of the invention, the wave groove is formed by combining and communicating a plurality of V-shaped grooves, the V-shaped grooves encircle the inner wall of the culture pond for a circle, and the sliding column is connected in one V-shaped groove in a sliding way. As a further scheme of the invention, the screening and collecting assembly comprises a collecting box, wherein the collecting box is fixedly connected with the bottom of the culture pond, four sorting grooves are formed in the collecting box, a drawer type seedling receiving box is slidably arranged in the sorting grooves, and a handle is arranged in front of the drawer type seedling receiving box. As a further scheme of the invention, a drain valve is arranged at the lower position of one side of the culture pond, two seedling placing valves are respectively arranged at the inner position and the outer position of the bottom of the culture pond, which are positioned between the inner wall of the culture pond and the seedling placing assembly, and the bottoms of the four seedling placing valves are respectively communicated with four drawer-type seedling receiving boxes. As a further scheme of the invention, the seedling placing component comprises a central cylinder, the bottom of the central cylinder is rotationally connected with a support bearing, the support bearing is clamped at the bottom of the inner wall of the culture pond, a plurality of seedling passing holes are formed in the outer part of the central cylinder, a fix