A fish fry grading and rearing isolation device

Abstract

The utility model discloses a fry grading cultivation isolation device, including U type isolation frame, be provided with the baffle and the buoy in the U type isolation frame, the baffle is welded in the U type isolation frame inside middle, and the U type isolation frame periphery of baffle left side is equipped with the thick stop net, and the U type isolation frame periphery of baffle right side is equipped with the thin stop net, the buoy is fixed through screw symmetry on the U type isolation frame top front and rear end, and the front end buoy middle is fixed with the guide bushing through screw installation, and the rear end buoy middle is fixed with the screw thread bushing through screw installation. The utility model can easily carry out grading isolation operation to fry, and effectively improves the survival rate and growth rate of fry.

Description

Technical Field

[0001] This utility model relates to a fish fry grading and isolation device, belonging to the field of aquaculture technology. Background Technology

[0002] During the rearing process of fish fry, the large size difference between fry makes it easy for larger fish to eat smaller ones. To avoid fry losses, a graded rearing method is usually adopted. However, existing fry grading and isolation devices have simple structures and cannot be expanded according to the number of fry. To solve the above problems, a new technical solution is provided. Utility Model Content

[0003] The purpose of this invention is to provide a fish fry grading and isolation device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a fish fry grading and isolation device, comprising a U-shaped isolation frame, wherein a partition and floats are provided on the U-shaped isolation frame, the partition is welded to the middle of the inside of the U-shaped isolation frame, and a coarse mesh is provided around the U-shaped isolation frame on the left side of the partition, and a fine mesh is provided around the U-shaped isolation frame on the right side of the partition. The floats are symmetrically installed and fixed at the front and rear ends of the U-shaped isolation frame by screws, and a guide bushing is installed and fixed in the middle of the front float by screws, and a threaded bushing is installed and fixed in the middle of the rear float by screws.

[0005] Preferably, an extended U-shaped isolation frame is symmetrically placed on the left and right sides inside the U-shaped isolation frame. The extended U-shaped isolation frame is provided with a first extended baffle and an end plate. The first extended baffle is opened around the perimeter of the extended U-shaped isolation frame, and the end plate is welded to the outer end of the extended U-shaped isolation frame.

[0006] Preferably, the end plate is provided with a second extended baffle and a docking seat, the second extended baffle is opened below the end plate, and the docking seat is symmetrically welded to the front and rear ends above the end plate.

[0007] Preferably, the inner end of the front-end docking seat is fixed with a guide shaft by screws, and the guide shaft is slidably connected in the guide shaft sleeve.

[0008] Preferably, an adjusting screw is rotatably connected to the rear docking seat, and the adjusting screw is threadedly connected to a threaded bushing.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the floats of this utility model are symmetrically installed and fixed at the front and rear ends of the U-shaped isolation frame with screws, and the floats can easily drive the U-shaped isolation frame to float on the water surface; the guide shaft is slidably connected in the guide shaft sleeve, which allows the guide shaft to easily slide back and forth along the guide shaft sleeve; the adjusting screw is threadedly connected to the threaded shaft sleeve, which allows the adjusting screw to move back and forth along the threaded shaft sleeve; in summary, this utility model can easily perform graded isolation operations on fish fry, effectively improving the survival rate and growth rate of fish fry. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the U-shaped isolation frame structure of this utility model; Figure 3 This is a schematic diagram of the extended U-shaped isolation frame structure of this utility model; In the figure: 1-U-shaped isolation frame; 2-partition plate; 3-floating block; 4-coarse baffle; 5-fine baffle; 6-guide bushing; 7-threaded bushing; 8-extended U-shaped isolation frame; 9-first extended baffle; 10-end plate; 11-second extended baffle; 12-connecting seat; 13-guide shaft; 14-adjusting screw. Detailed Implementation The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0011] like Figure 1-3 As shown, a fish fry grading and rearing isolation device includes a U-shaped isolation frame 1. A partition 2 and floats 3 are disposed on the U-shaped isolation frame 1. The partition 2 is welded to the center of the U-shaped isolation frame 1. A coarse mesh 4 is provided around the perimeter of the U-shaped isolation frame 1 on the left side of the partition 2, and a fine mesh 5 is provided around the perimeter of the U-shaped isolation frame 1 on the right side of the partition 2. The floats 3 are symmetrically fixed to the front and rear ends of the U-shaped isolation frame 1 with screws. A guide sleeve 6 is fixed to the center of the front float 3 with screws, and a threaded sleeve 7 is fixed to the center of the rear float 3 with screws. Extended U-shaped isolation frames 8 are symmetrically placed on the left and right sides inside the U-shaped isolation frame 1. The extended U-shaped isolation frame 8 is provided with a first extended baffle 9 and an end plate 10. The first extended baffle 9 is opened around the periphery of the extended U-shaped isolation frame 8. The end plate 10 is welded to the outer end of the extended U-shaped isolation frame 8. The end plate 10 is provided with a second extended baffle 11 and a docking seat 12. The second extended baffle 11 is opened below the end plate 10. The docking seats 12 are symmetrically welded to the front and rear ends above the end plate 10. The inner end of the docking seat 12 at the front end is fixed with a guide shaft 13 by screws. The guide shaft 13 is slidably connected to the guide shaft sleeve 6. The docking seat 12 at the rear end is rotatably connected with an adjusting screw 14. The adjusting screw 14 is threadedly connected to the threaded shaft sleeve 7. Specific usage: When it is necessary to expand the U-shaped isolation frame 1, turn the adjusting screw 14 to rotate along the threaded bushing 7 and move it outward at the same time. The outward movement of the adjusting screw 14 drives the end plate 10 to move outward along the guide bushing 6. The outward movement of the end plate 10 drives the extension U-shaped isolation frame 8 to move outward along the inner wall of the U-shaped isolation frame 1 to perform the space expansion operation.

[0012] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A fish fry grading and isolation device, comprising a U-shaped isolation frame (1), characterized in that: The U-shaped isolation frame (1) is provided with a partition (2) and a float (3). The partition (2) is welded to the middle of the inside of the U-shaped isolation frame (1). A coarse mesh (4) is provided around the U-shaped isolation frame (1) on the left side of the partition (2), and a fine mesh (5) is provided around the U-shaped isolation frame (1) on the right side of the partition (2). The float (3) is symmetrically fixed to the front and rear ends of the U-shaped isolation frame (1) by screws. A guide bushing (6) is fixed in the middle of the front float (3) by screws, and a threaded bushing (7) is fixed in the middle of the rear float (3) by screws. An extended U-shaped isolation frame (8) is symmetrically placed on the left and right sides inside the U-shaped isolation frame (1). A first extended baffle (9) and an end plate (10) are provided on the extended U-shaped isolation frame (8). The first extended baffle (9) is opened around the extended U-shaped isolation frame (8). The end plate (10) is welded to the outer end of the extended U-shaped isolation frame (8). A second extended baffle (11) and a docking seat (12) are provided on the end plate (10). The second extended baffle (11) is opened below the end plate (10). The docking seat (12) is symmetrically welded to the front and rear ends above the end plate (10).

2. The fish fry grading and isolation device according to claim 1, characterized in that: The guide shaft (13) is fixed to the inner end of the front docking seat (12) by screws, and the guide shaft (13) is slidably connected to the guide shaft sleeve (6).

3. The fish fry grading and isolation device according to claim 2, characterized in that: An adjusting screw (14) is rotatably connected to the rear docking seat (12), and the adjusting screw (14) is threadedly connected to the threaded bushing (7).

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