Fry screening device for aquaculture

Abstract

The utility model discloses a fry screening device for aquaculture, and relates to the technical field of aquaculture, the fry screening device comprises a screening box, the front and back sides of the upper surface of the screening box are uniformly provided with grooves, the interiors of the front and back corresponding grooves are only provided with lapping plates in a lapping manner, the opposite ends of the lapping plates are fixedly provided with the same partition plate, and the partition plate is provided with a plurality of partition plates. And through holes are uniformly distributed in the surface of the partition plate. Compared with an existing common fish fry screening device for aquaculture, the fish fry screening device for aquaculture has the advantages that the sizes of the through holes of the partition plates can be adaptively adjusted according to the fish fry screening requirements in different areas, so that effective screening of fish fries is ensured, and various partition plates with different through hole diameters do not need to be prepared; the whole device can be produced and used in a unified and standardized mode, multiple hole diameters do not need to be opened in production, multiple hole diameters do not need to be purchased in use, use is more convenient and flexible, and the requirement for purchasing partition plates with different hole diameters is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a fish fry screening device for aquaculture. Background Technology

[0002] Aquaculture is the practice of humans using aquatic waters for aquaculture, according to the ecological habits of the aquatic organisms and their requirements for aquatic environmental conditions, employing aquaculture technology and facilities to raise aquatic economic animals and plants. As one of the agricultural production sectors, when raising fish fry, it is usually necessary to select fish fry of different sizes according to their size and then raise them separately to prevent larger fish fry from eating smaller ones and causing the smaller fish fry to die.

[0003] For example, the public document with application number 202322894605.7 discloses a fish fry screening device for aquaculture. This utility model has a first sieve plate and a second sieve plate inside the box, which can grade and screen fish fry inside the box to obtain fry of different sizes. After screening, a lifting mechanism can be used to raise the fry inside the box, thereby reducing the swimming range of the fry and making it easier for workers to retrieve them. However, in this fish fry screening device for aquaculture, the position of the sieve plates inside the box is fixed, making it difficult to adjust the storage area for different sieving fry according to needs. Furthermore, the fixed aperture size of the sieve plate means that it can only screen a fixed number of fish fry of a certain type, and cannot increase or decrease the size of the fish fry being screened. Even if the sieve plate can be replaced and disassembled, screening different sizes of fish fry requires replacing the sieve plate with one of a different aperture size, which means that more sieve plates of different aperture sizes need to be prepared for use, which increases the cost of purchasing and using them. In addition, production requires the addition of various opening molds with different aperture sizes, which greatly increases the cost in both production and use. It is not conducive to large-scale, multi-batch, and multi-type fish fry screening. Overall, it has certain limitations in use, making it unsuitable for practical use and of poor practicality.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a fish fry screening device for aquaculture. Utility Model Content

[0005] The purpose of this invention is to provide a fish fry screening device for aquaculture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fish fry screening device for aquaculture, comprising a screening box, wherein grooves are evenly distributed on the front and rear sides of the upper surface of the screening box, and only a mounting plate is installed inside the corresponding front and rear grooves, wherein a partition plate is fixedly installed on the opposite end of the mounting plate, wherein through holes are evenly distributed on the surface of the partition plate, and a cavity is formed in the middle of the upper surface of the partition plate, wherein the same adjustment mechanism is provided on the opposite side of the upper surface of the mounting plate and inside the cavity.

[0007] Preferably, the adjustment mechanism includes an adjustment rod rotatably connected to one side of the upper surface of the stacking plate. The surface of the adjustment rod is evenly distributed with four sets of bidirectional threaded patterns, and each set of bidirectional threaded patterns has a push seat threadedly connected to both the left and right sides of the surface. The lower surface of each push seat is fixedly connected to a movable plate, and the front end of the adjustment rod passes through the front stacking plate and is fixedly connected to a handwheel.

[0008] Preferably, the propeller bases are arranged in pairs on the same bidirectional threaded surface, and the movable plates installed on the lower surface of each propeller base are located on the front and rear sides of the vertically arranged through holes, and the movable plates are slidably fitted inside the cavity.

[0009] Preferably, the front side of the screening box front stack plate has positioning holes evenly spaced around the adjustment rod through part, and a movable rod is inserted into any one of the positioning holes, with the front end of the movable rod sliding through the handwheel.

[0010] Preferably, a fixing plate is fixedly installed on the rear side of the surface of the movable rod, and a spring is fixedly connected to the front side of the surface of the fixing plate. The spring is sleeved on the outside of the movable rod, and its front end is fixedly connected to the handwheel.

[0011] Preferably, a secondary groove is provided on the left side of the outer surface of the screening box, and a mesh plate is fixedly installed on the right side of the inner surface of the secondary groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of grooves, stacking plates, partitions, through holes, cavities and adjustment mechanisms, can adapt and adjust the size of the through holes of the partitions according to the fish fry screening needs of different regions, thereby ensuring the effective screening of fish fry. Moreover, there is no need to prepare partitions with different through hole diameters. That is, the entire device can be produced and used in a uniform and standardized manner. There is no need to open molds for multiple hole diameters in production, and there is no need to purchase multiple hole diameters in use. It is more convenient and flexible to use and reduces the need to purchase partitions with different hole diameters.

[0014] 2. By using positioning holes, movable rods, fixed plates, and springs, this utility model avoids the adjustment mechanism from undergoing secondary rotation adjustment due to external forces, and prevents the size of the through hole from changing during the screening of fish fry, thus affecting the accuracy of the screening and greatly improving the stability of the hole diameter after adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the partition structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the partition and a schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Screening box; 2. Groove; 3. Stacking plate; 4. Partition plate; 5. Through hole; 6. Cavity; 7. Adjustment mechanism; 701. Adjustment rod; 702. Bidirectional threaded pattern; 703. Push seat; 704. Movable plate; 705. Handwheel; 8. Positioning hole; 9. Movable rod; 10. Fixed plate; 11. Spring; 12. Secondary groove; 13. Mesh plate. Detailed Implementation

[0020] 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.

[0021] like Figures 1-4 As shown, a fish fry screening device for aquaculture includes a screening box 1. The upper surface of the screening box 1 has grooves 2 evenly distributed on the front and back sides. Only a mounting plate 3 is installed inside the corresponding grooves 2. The same partition plate 4 is fixedly installed at the opposite end of the mounting plate 3. The surface of the partition plate 4 has through holes 5 evenly distributed. A cavity 6 is opened in the middle of the upper surface of the partition plate 4. The same adjustment mechanism 7 is provided on the opposite side of the upper surface of the mounting plate 3 and inside the cavity 6.

[0022] By adopting the above technical solution, the partition 4 can be quickly assembled with the screening box 1 by inserting the mounting plate 3 into the groove 2; and the installation position of the partition 4 can be flexibly adjusted according to the size of the different fish fry partitions, thereby adjusting the space required for fish fry screening and classification in different areas inside the screening box 1.

[0023] Furthermore, the adjustment mechanism 7 includes an adjustment rod 701 rotatably connected to one side of the upper surface of the stacking plate 3. The surface of the adjustment rod 701 is evenly distributed with four sets of bidirectional threaded patterns 702, and each set of bidirectional threaded patterns 702 is threaded with a push seat 703 on both the left and right sides of the surface. The lower surface of the push seat 703 is fixedly connected with a movable plate 704. The front end of the adjustment rod 701 passes through the front stacking plate 3 and is fixedly connected with a handwheel 705.

[0024] The pushers 703 are located in pairs on the same bidirectional threaded surface 702, and the movable plates 704 installed on the lower surface of each pusher 703 are located on the front and rear sides of the vertically arranged through holes 5. The movable plates 704 are slidably fitted inside the cavity 6.

[0025] By adopting the above technical solution, the handwheel 705 is turned to drive the adjusting rod 701 to rotate. Under the limitation of the cavity 6 on the movable plate 704, the push seat 703 can be limited, so that the rotating bidirectional thread 702 pushes the push seat 703 to move, driving the movable plate 704 to move and adjust the size of the through hole 5; that is, the through hole 5 on the surface of each partition 4 can be adjusted so that the diameter of the through hole 5 is gradually reduced.

[0026] Furthermore, the front side of the front plate 3 of the screening box 1 is provided with positioning holes 8 evenly arranged around the through part of the adjusting rod 701, and a movable rod 9 is inserted into any one of the positioning holes 8, with the front end of the movable rod 9 sliding through the handwheel 705.

[0027] By adopting the above technical solution, the rotation direction of the movable rod 9 is limited by the positioning hole 8, and the movable rod 9 passes through the handwheel 705 to limit the handwheel 705, so that the handwheel 705 and the adjusting rod 701 cannot rotate a second time.

[0028] Furthermore, a fixing plate 10 is fixedly installed on the rear side of the surface of the movable rod 9, and a spring 11 is fixedly connected to the front side of the surface of the fixing plate 10. The spring 11 is sleeved on the outside of the movable rod 9, and its front end is fixedly connected to the handwheel 705.

[0029] By adopting the above technical solution, the spring 11 pushes the movable rod 9 through the fixed plate 10 to be stably inserted into the positioning hole 8.

[0030] Furthermore, a secondary groove 12 is provided on the left side of the outer surface of the screening box 1, and a mesh plate 13 is fixedly installed on the right side of the inner surface of the secondary groove 12.

[0031] By adopting the above technical solution, the interior of the secondary tank 12 can be filled with fish-attracting material to ensure that the fish fry can swim from right to left for active classification. Furthermore, the attraction of the material can also prevent the fish fry from swimming back to the different partition areas 4 after screening.

[0032] The mesh plate 13 can ensure that the material odor is transmitted to the screening box 1, and can also screen the material until the leftmost seedlings have finished eating it.

[0033] Working Principle: When using this aquaculture fry screening device, firstly, prepare a corresponding number of partitions 4 according to the different fry screening levels. The partitions 4 are placed inside the grooves 2 using the mounting plates 3, allowing for quick assembly of the partitions 4 with the screening box 1. This divides the screening box 1 into multiple sections, and the installation position of the partitions 4 can be flexibly adjusted according to the size of the different fry sections, thereby adjusting the space required for fry screening and classification in different areas inside the screening box 1. Then, pull the movable rod 9 out of the positioning hole 8, and use the handwheel 705 to rotate the adjusting rod 701. Under the limitation of the movable plate 704 by the cavity 6, the push seat 703 can be limited, allowing the bidirectional rotation to be controlled. The threaded groove 702 pushes the propulsion seat 703 to move, which in turn moves the movable plate 704 to adjust the size of the through hole 5. The size of the through hole 5 on the surface of different partitions 4 is adjusted from right to left, with the right side being the largest and the size adjusted as needed to the left, gradually decreasing the diameter of the through hole 5. Then, fish attractant material is filled into the sub-trough 12. Finally, all the fish fry are put into the rightmost screening box 1 section. Attracted by the fish attractant material, the fish fry will swim to the left and pass through the through hole 5 of the partition 4. As the size of the through hole 5 gradually decreases, the fish fry of different sizes will be screened and remain in different areas, thus completing the screening of fish fry. This is the working principle of the fish fry screening device for aquaculture.

Claims

1. A fish fry screening device for aquaculture, comprising a screening box (1), characterized in that, The screening box (1) has grooves (2) evenly distributed on the front and back sides of its upper surface, and only mounting plates (3) are placed inside the corresponding grooves (2). The same partition plate (4) is fixedly installed on the opposite end of the mounting plate (3). Through holes (5) are evenly distributed on the surface of the partition plate (4). A cavity (6) is opened in the middle of the upper surface of the partition plate (4). The same adjustment mechanism (7) is provided on the opposite side of the upper surface of the mounting plate (3) and inside the cavity (6).

2. The fish fry screening device for aquaculture according to claim 1, characterized in that, The adjustment mechanism (7) includes an adjustment rod (701) rotatably connected to the upper surface of the stacking plate (3) on one side. The surface of the adjustment rod (701) is evenly distributed with four sets of bidirectional threaded patterns (702), and each set of bidirectional threaded patterns (702) has a push seat (703) threadedly connected to the left and right sides of the surface. The lower surface of the push seat (703) is fixedly connected with a movable plate (704). The front end of the adjustment rod (701) passes through the front stacking plate (3) and is fixedly connected with a handwheel (705).

3. The fish fry screening device for aquaculture according to claim 2, characterized in that, The pusher seats (703) are located in pairs on the same bidirectional threaded surface (702), and the movable plates (704) installed on the lower surface of each pusher seat (703) are located on the front and rear sides of the vertically arranged through holes (5). The movable plates (704) are slidably fitted inside the cavity (6).

4. The fish fry screening device for aquaculture according to claim 1, characterized in that, The front side of the screening box (1) front side stacking plate (3) has positioning holes (8) evenly arranged around the through part of the adjusting rod (701) on the front side, and a movable rod (9) is inserted into any one of the positioning holes (8), and the front end of the movable rod (9) slides through the handwheel (705).

5. The fish fry screening device for aquaculture according to claim 4, characterized in that, A fixing plate (10) is fixedly installed on the rear side of the surface of the movable rod (9), and a spring (11) is fixedly connected to the front side of the surface of the fixing plate (10). The spring (11) is sleeved on the outside of the movable rod (9), and its front end is fixedly connected to the handwheel (705).

6. The fish fry screening device for aquaculture according to claim 1, characterized in that, The outer surface of the screening box (1) has a secondary groove (12) on the left side, and a mesh plate (13) is fixedly installed on the inner surface of the secondary groove (12) on the right side.

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