A seedling screening device for salt-tolerant breeding of tilapia rendalli

Abstract

The utility model belongs to fry propagation technical field, concretely relates to a kind of fry screening device for salt-tolerant selection of red tilapia, including screening pool, the upper end of screening pool is connected with cover by multiple bolts fixedly, the upper end of cover is fixedly connected with feed hopper. The utility model is fixedly connected with reinforcing frame by the lower end of large screening hopper, middle screening hopper and small screening hopper respectively, and upper end is fixedly connected with enclosure frame respectively, to reinforce the upper and lower of large screening hopper, middle screening hopper and small screening hopper respectively, and the reinforcing rib is to reinforce the left and right sides of large screening hopper, middle screening hopper and small screening hopper, while the installation connection firmness and stability between reinforcing frame and enclosure frame are increased, the protection of large screening hopper, middle screening hopper and small screening hopper is also increased, the damage of large screening hopper, middle screening hopper and small screening hopper when being pressed down is reduced, and the service life and use effect of large screening hopper, middle screening hopper and small screening hopper are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fish fry breeding technology, specifically a seed selection device for salt-tolerant breeding of red tilapia. Background Technology

[0002] Red tilapia has become an important economic aquaculture species due to its rapid growth and delicious taste. Expanding its farming scope, especially to coastal mudflats and saline-alkali areas with high salinity, is an important direction for improving aquaculture efficiency and land utilization. The key to achieving this goal lies in obtaining salt-tolerant strains through artificial breeding. Salt-tolerant breeding of red tilapia usually relies on traditional seedling screening equipment.

[0003] Utility model patent CN214047157U discloses a high-efficiency fish fry grading and screening device, relating to the field of fish fry breeding. The device includes a screening tank shell, inside which is a scooping net, and inside the scooping net is a fine screen, inside the fine screen is a medium screen, and inside the medium screen is a large screen. A fixing rod is installed on the top of the screening tank shell, and a shock-absorbing ring is installed in the middle of the fixing rod. This utility model uses a vibration motor to generate vibration, thereby agitating the water and causing the fish to instinctively scatter and escape. During escape, larger fish fry are blocked inside the large screen, while medium and small fish fry continue to escape through it. Medium-sized fish fry are blocked inside the medium screen, while small and tiny fish fry continue to escape through it. The small and tiny fish fry are then screened through the fine screen. After screening, the large screen, medium screen, fine screen, and scooping net are lifted in sequence, thus quickly and efficiently screening and harvesting the fish fry.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: The mesh size of the screening net reduces its sturdiness and pressure resistance. Over time, the net may dent due to the pressure from fish fry, making it prone to damage and affecting its performance and lifespan. Furthermore, the lack of dust and dirt removal features during water discharge allows impurities to be discharged with the water, causing pollution and hindering water reuse. Utility Model Content

[0005] The purpose of this invention is to provide a seedling screening device for salt-tolerant breeding of red tilapia, which solves the problems of short service life of the screening net and ineffective wastewater treatment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seedling screening device for salt-tolerant breeding of red tilapia, comprising a screening pool, a cover fixedly connected to the upper end of the screening pool by multiple bolts, a feed hopper fixedly connected to the upper end of the cover, a seedling screening mechanism disposed inside the screening pool, a filtration and decontamination mechanism disposed at the lower right end of the screening pool, support rods fixedly connected to the left and right sides of the lower end of the feed hopper, a protective cover fixedly connected to one end of the support rod, a vibration motor fixedly connected inside the protective cover, and multiple support legs fixedly connected to the lower end of the screening pool, with support blocks fixedly connected to the lower ends of the support legs.

[0007] Preferably, the seedling screening mechanism includes a limiting sleeve, and multiple limiting sleeves are fixedly connected to the lower end of the screening pool. A limiting rod is slidably connected inside the limiting sleeve, and a reinforcing frame is fixedly connected to the upper end of the limiting rod. Through the sliding connection between the limiting sleeve and the limiting rod, the large screening bucket, the medium screening bucket, and the small screening bucket are respectively limited.

[0008] Preferably, a large screening bucket, a medium screening bucket, and a small screening bucket are fixedly connected to the upper end of the reinforcing frame, and a surrounding frame is fixedly connected to the upper end of each of the large, medium, and small screening buckets. The small screening bucket is connected to the inside of the medium screening bucket, and the medium screening bucket is connected to the inside of the large screening bucket. The mesh sizes of the large, medium, and small screening buckets are different.

[0009] Preferably, multiple reinforcing ribs are fixedly connected to the left and right ends of the outer sides of the large screening hopper, medium screening hopper and small screening hopper, respectively. The upper end of the reinforcing rib is fixedly connected to the outer side of the frame, and the lower end of the reinforcing rib is fixedly connected to the upper end of the reinforcing frame. An ear plate is fixedly connected to the upper end of the reinforcing rib, and the upper end of the ear plate is slidably connected to the lower end of the inner side of the cover. The large screening hopper, medium screening hopper and small screening hopper can be easily picked up and moved through the ear plate.

[0010] Preferably, the filtration and decontamination mechanism includes a filtration and decontamination box, which is fixedly connected to the lower right side of the screening pool. A filter screen is fixedly connected inside the filtration and decontamination box to filter out dirt in the water and prevent dirt from being discharged with the water.

[0011] Preferably, the lower right end of the screening pool and the lower left end of the filtration and decontamination box are respectively provided with through grooves, and the lower right end of the filtration and decontamination box is fixedly connected with a drain outlet for discharging filtered water.

[0012] Preferably, a drain trough is provided at the lower left side of the filter and dirt removal box, a dirt collection box is fixedly connected to the lower left side of the filter and dirt removal box, and a drain outlet is fixedly connected to the lower right side of the dirt collection box, so that the dirt collection box can easily collect dirt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a reinforced frame fixedly connected to the lower end of the large, medium, and small screening buckets, and a surrounding frame fixedly connected to the upper end of each bucket, thereby reinforcing the large, medium, and small screening buckets from the top and bottom respectively. The reinforcing ribs reinforce the left and right sides of the large, medium, and small screening buckets, while increasing the robustness and stability of the installation connection between the reinforced frame and the surrounding frame. This also increases the protection of the large, medium, and small screening buckets, reduces the damage to them when subjected to downward pressure, and extends their service life and performance.

[0014] 2. This utility model uses a filter screen fixedly connected inside the filter and dirt removal box. The filter screen filters out dirt in the water. The dirt is blocked to the left side of the filter screen and then discharged into the dirt collection box through the drain trough. Finally, it is discharged by opening the drain outlet, while the filtered water is discharged through the drain outlet, thus avoiding the drawbacks caused by the mixing of water and dirt in the discharge. Attached Figure Description

[0015] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ; Figure 2 The overall three-dimensional structure of this utility model Figure 2 ; Figure 3 This is a partial three-dimensional sectional view of the present invention; Figure 4 This is a partial three-dimensional view of the present invention.

[0016] In the diagram: 1. Screening pool; 2. Cover; 3. Feed hopper; 4. Seedling screening mechanism; 5. Filtration and decontamination mechanism; 6. Support rod; 7. Protective cover; 8. Vibration motor; 9. Support leg; 10. Support block; 41. Limiting sleeve; 42. Limiting rod; 43. Reinforcing frame; 44. Large screening hopper; 45. Medium screening hopper; 46. Small screening hopper; 47. Enclosure frame; 48. Reinforcing rib; 49. Ear plate; 51. Filtration and decontamination box; 52. Filter screen; 53. Through groove; 54. Drain outlet; 55. Sewage discharge trough; 56. Sewage collection box; 57. Sewage outlet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A seedling screening device for salt-tolerant breeding of red tilapia includes a screening pool 1. A cover 2 is fixedly connected to the upper end of the screening pool 1 by multiple bolts, covering the upper end of the screening pool 1 to prevent fish from jumping out. A feed hopper 3 is fixedly connected to the upper end of the cover 2, facilitating the release of fish fry. A seedling screening mechanism 4 is installed inside the screening pool 1. A filtration and decontamination mechanism 5 is installed at the lower right side of the screening pool 1. The lower left and right sides of the feed hopper 3 are respectively fixedly connected... A support rod 6 is connected to the screen 1. The support rod 6 is used to install and limit the protective cover 7. One end of the support rod 6 is fixedly connected to the protective cover 7, which protects the vibration motor 8. The vibration motor 8 is fixedly connected inside the protective cover 7. The vibration motor 8 is model XJD. The plug of the vibration motor 8 is connected to an external power supply, which is existing technology. Multiple support legs 9 are fixedly connected to the lower end of the screening pool 1. Support blocks 10 are fixedly connected to the lower end of the support legs 9. The support legs 9 and support blocks 10 support the screening pool 1.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4The seedling screening mechanism 4 includes a limiting sleeve 41. Multiple limiting sleeves 41 are fixedly connected to the lower end of the screening pool 1. A limiting rod 42 is slidably connected inside the limiting sleeve 41. A reinforcing frame 43 is fixedly connected to the upper end of the limiting rod 42. The limiting sleeves 41 and the limiting rod 42 slidably connect to the reinforcing frame 43, limiting and supporting it. A large screening bucket 44, a medium screening bucket 45, and a small screening bucket 46 are fixedly connected to the upper end of the reinforcing frame 43. A vibration motor 8 generates vibrations, causing the water to ripple and the fish to instinctively scatter and escape. During escape, larger seedlings are blocked inside the small screening bucket 46, while medium and small seedlings continue to escape through it. Medium seedlings are blocked inside the medium screening bucket 45, while small and tiny seedlings continue to escape through it. The small and tiny seedlings are then screened by the large screening bucket 44. After screening, the large screening bucket 44, medium screening bucket 45, and small and tiny seedlings are sequentially screened. 5. The small screening bucket 46 is lifted to quickly and efficiently screen and catch the fish fry. The upper ends of the large screening bucket 44, medium screening bucket 45 and small screening bucket 46 are respectively fixedly connected to the frame 47. The frame 47 reinforces the upper ends of the large screening bucket 44, medium screening bucket 45 and small screening bucket 46. The small screening bucket 46 is connected to the inside of the medium screening bucket 45, and the medium screening bucket 45 is connected to the inside of the large screening bucket 44. Multiple reinforcing ribs 48 are fixedly connected to the left and right ends of the outer sides of the large screening bucket 44, medium screening bucket 45 and small screening bucket 46. The reinforcing ribs 48 reinforce the outer sides of the large screening bucket 44, medium screening bucket 45 and small screening bucket 46. The upper end of the reinforcing rib 48 is fixedly connected to the outside of the frame 47, and the lower end of the reinforcing rib 48 is fixedly connected to the upper end of the reinforcing frame 43. The upper end of the reinforcing rib 48 is fixedly connected to the ear plate 49, and the upper end of the ear plate 49 is slidably connected to the lower end of the inside of the cover 2.

[0020] Please see Figure 1 , Figure 2 , Figure 3 The filtration and decontamination mechanism 5 includes a filtration and decontamination box 51. The filtration and decontamination box 51 is fixedly connected to the lower right side of the screening pool 1. A filter screen 52 is fixedly connected inside the filtration and decontamination box 51. A through groove 53 is opened at the lower right side of the screening pool 1 and the lower left side of the filtration and decontamination box 51, respectively. Wastewater is discharged into the interior of the filtration and decontamination box 51 through the through groove 53. A drain outlet 54 is fixedly connected to the lower right side of the filtration and decontamination box 51. A sludge discharge trough 55 is opened at the lower left side of the filtration and decontamination box 51. A sludge collection box 56 is fixedly connected to the lower left side of the filtration and decontamination box 51, and wastewater is discharged into the interior of the sludge collection box 56 through the sludge discharge trough 55. A sludge discharge port 57 is fixedly connected to the lower right side of the sludge collection box 56.

[0021] The specific implementation process of this utility model is as follows: Start the vibration motor 8 to make the vibration motor 8 work. After the vibration motor 8 works, the fish fry are poured into the inside of the feeding hopper 3 and then enter the inside of the small screening hopper 46 through the feeding hopper 3. The small screening hopper 46 has the largest mesh size, which can intercept the larger fish fry. Then the other fish fry are discharged through the small screening hopper 46 to the medium screening hopper 45. The medium screening hopper 45 has a medium mesh size. Similarly, the fish fry filtered through the medium screening hopper 45 are sent to the inside of the large screening hopper 44. The large screening hopper 44 has the smallest mesh size, which can prevent the fish fry from being discharged, thus completing the fish fry screening work. After the work is completed, the large screening hopper 44, the medium screening hopper 45 and the small screening hopper 46 are taken out to remove the screened fish fry. Then open the drain outlet 54 to allow water to be discharged into the filter and dirt removal box 51 through the channel 53, and filtered through the filter screen 52. The dirt is then left on the left side of the filter screen 52. The filtered water is discharged through the drain outlet 54, and the dirt discharge channel 55 discharges into the dirt collection box 56. Finally, the water can be discharged by opening the drain outlet 57.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seedling screening device for salt-tolerant breeding of red tilapia, comprising a screening pool (1), characterized in that: The upper end of the screening pool (1) is fixedly connected to a cover (2) by multiple bolts. The upper end of the cover (2) is fixedly connected to a feed hopper (3). The screening pool (1) is equipped with a seedling screening mechanism (4). The lower right end of the screening pool (1) is equipped with a filtration and decontamination mechanism (5). The lower left and right sides of the feed hopper (3) are fixedly connected to support rods (6). One end of the support rod (6) is fixedly connected to a protective cover (7). The inside of the protective cover (7) is fixedly connected to a vibration motor (8). The lower end of the screening pool (1) is fixedly connected to multiple support legs (9). The lower end of the support legs (9) is fixedly connected to a support block (10).

2. The seedling screening device for salt-tolerant breeding of red tilapia according to claim 1, characterized in that: The seedling screening mechanism (4) includes a limiting sleeve (41). Multiple limiting sleeves (41) are fixedly connected to the lower end of the screening pool (1). A limiting rod (42) is slidably connected inside the limiting sleeve (41). A reinforcing frame (43) is fixedly connected to the upper end of the limiting rod (42).

3. The seedling screening device for salt-tolerant breeding of red tilapia according to claim 2, characterized in that: The upper end of the reinforcing frame (43) is fixedly connected to a large screening bucket (44), a medium screening bucket (45) and a small screening bucket (46). The upper ends of the large screening bucket (44), the medium screening bucket (45) and the small screening bucket (46) are fixedly connected to a surrounding frame (47). The small screening bucket (46) is connected to the inside of the medium screening bucket (45), and the medium screening bucket (45) is connected to the inside of the large screening bucket (44).

4. The seedling screening device for salt-tolerant breeding of red tilapia according to claim 3, characterized in that: Multiple reinforcing ribs (48) are fixedly connected to the left and right ends of the large screening bucket (44), medium screening bucket (45) and small screening bucket (46). The upper end of the reinforcing rib (48) is fixedly connected to the outside of the frame (47), and the lower end of the reinforcing rib (48) is fixedly connected to the upper end of the reinforcing frame (43). The upper end of the reinforcing rib (48) is fixedly connected to the ear plate (49), and the upper end of the ear plate (49) is slidably connected to the lower end of the inside of the cover (2).

5. The seedling screening device for salt-tolerant breeding of red tilapia according to claim 1, characterized in that: The filtration and decontamination mechanism (5) includes a filtration and decontamination box (51). The filtration and decontamination box (51) is fixedly connected to the lower right side of the screening pool (1). A filter screen (52) is fixedly connected inside the filtration and decontamination box (51).

6. The seedling screening device for salt-tolerant breeding of red tilapia according to claim 5, characterized in that: The lower right end of the screening pool (1) and the lower left end of the filter and dirt removal box (51) are respectively provided with through grooves (53), and the lower right end of the filter and dirt removal box (51) is fixedly connected with a drain outlet (54).

7. A seedling screening device for salt-tolerant breeding of red tilapia according to claim 5, characterized in that: The filter and dirt removal box (51) has a drain trough (55) at the lower left side, a dirt collection box (56) is fixedly connected to the lower left side of the filter and dirt removal box (51), and a drain outlet (57) is fixedly connected to the lower right side of the dirt collection box (56).

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