Auxiliary screening device for fry collection

Abstract

The utility model relates to aquatic product breeding technical field especially fish fry is collected with auxiliary screening device, aiming at the problem of inconveniently reducing the quantity of big fish fry in continuous screening in prior art and leading to too many fish fry in screening device to influence screening effect, the present application proposes the following scheme, it includes: the placement box, the one side outer wall of placement box is fixed with the connecting pipe that communicates with its inside, the one side of placement box opposite connecting pipe is equipped with the emptying mouth, and the intercepting net is installed in the connecting pipe, the screening mechanism, it includes the screening box that rotates and connects in the placement box, the fixed column that fixes in the bottom center of screening box and the multiple partition net that fixes between fixed column and the inner ring of screening box, the adjacent two partition net and the inner ring of screening box constitute screening space, the utility model discloses can effectively avoid the more and more of the quantity of big fish fry in screening device while guaranteeing continuous screening, and also can conveniently take out the fish fry of different body shape after screening separation.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to an auxiliary screening device for collecting fish fry. Background Technology

[0002] In fish farming, fry selection is a crucial step, typically requiring grading based on size for separate rearing and management. Current fry selection devices often employ sieves or grading troughs, using water flow or vibration to separate fry by size through sieves with different apertures. However, in practice, especially during continuous selection, larger fry may not pass through the sieves promptly, leading to accumulation within the device. This not only affects selection efficiency but can also cause crushing damage due to excessive fry density, potentially impacting the accuracy of subsequent selections.

[0003] Currently, while some screening devices have grading functions, they lack a rapid diversion mechanism for larger fish fry, leading to a continuous increase in the number of fry inside the device during the screening process and affecting the screening effect. Therefore, this solution proposes an auxiliary screening device for fish fry collection. Utility Model Content

[0004] This utility model proposes an auxiliary screening device for fish fry collection, which solves the problem that existing fish fry screening devices are inconvenient to reduce the number of large fish fry in time during continuous screening, resulting in an excessive number of fish fry in the screening device and affecting the screening effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An auxiliary screening device for collecting fish fry includes:

[0007] The placement box has a connecting pipe fixed to one side of its outer wall, which communicates with its interior. The side of the placement box facing the connecting pipe has an air vent, and an intercepting net is installed inside the connecting pipe.

[0008] The screening mechanism includes a screening box rotatably connected inside a placement box, a fixed column fixed at the center of the bottom of the screening box, and multiple partitions fixed between the fixed column and the inner ring of the screening box. Two adjacent partitions and the inner ring of the screening box form a screening space. The inner wall of the screening box is provided with a discharge port for discharging fish fry in the screening space, and a sealing plate for sealing itself is detachably installed in the discharge port.

[0009] A collection mechanism includes a collection box connected to the other end of a connecting pipe and a collection basket placed inside the collection box, wherein an overflow pipe is installed on the upper side of one side of the collection box;

[0010] In one process, after the discharge port of a screening space is directly opposite the connecting pipe, the sealing plate inside the discharge port is pulled out, so that the smaller fish fry in the screening space can follow the water flow through the interception net into the collection box.

[0011] The above technical solution not only ensures continuous screening but also effectively prevents the accumulation of large seedlings in the screening device, and also makes it easy to separate and remove seedlings of different sizes after screening.

[0012] As a further improvement to the above solution, both the placement box and the screening box are cylindrical structures, and the outer ring of the screening box abuts against the inner ring of the placement box, and the bottom of the connecting pipe is flush with the bottom of the discharge port.

[0013] As a further improvement to the above solution, a turntable is installed on the top of the fixed column, and a drain pipe is installed on the bottom side of the collection box, with a valve installed on the drain pipe.

[0014] As a further improvement to the above solution, the top of the placement box is equipped with a mounting bracket located directly above the connecting pipe, and the mounting bracket is equipped with a water supply pipe for supplying water to a screening space directly opposite the connecting pipe.

[0015] As a further improvement to the above solution, the top of the discharge port is an open structure, and there are limiting grooves on both sides of the discharge port that are opened along its length. The two long sides of the sealing plate are fixed with limiting plates that are arranged along its length. The two limiting plates are respectively inserted into the two limiting grooves to lock the sealing plate into the discharge port. The top of the sealing plate is fixed with a top plate that is arranged along its top surface length. The two ends of the top surface of the top plate are threaded with fixing bolts for locking the sealing plate. The top of both sides of the discharge port are provided with bolt holes for connecting the fixing bolts.

[0016] As a further improvement to the above solution, connecting rods are fixed to the top of the opposite outer walls of the collection basket, and the tops of the two connecting rods extend to the top of the collection box and are fixed with pull rings.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By setting up a placement box, connecting pipe, drain port, and screening mechanism, multiple screening spaces are set up inside the screening box, so that the fry in adjacent screening spaces do not interfere with each other. After the fry in one screening space are screened, the next screening space is rotated to the position of the connecting pipe by rotating the fixed column. Then the sealing plate of the screening space is opened, and the fry in the screening space can continue to be screened. When the screening space is rotated to the position facing the drain port, the remaining larger fry in the screening space can be discharged. Then, fry can be put into the screening space again for screening. This achieves continuous screening without the continuous increase in the number of large fry, which helps to improve the screening efficiency.

[0019] 2. The design, including the collection basket, connecting rod, and pull ring, allows for easy removal of the collection basket from the collection box, thus facilitating the removal of fish fry from the box. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 A cross-sectional view of the box and screening device;

[0022] Figure 3 This is a structural diagram of the box.

[0023] Figure 4 This is a schematic diagram of the structure when one of the sealing plates in the screening device is pulled out.

[0024] Figure 5 This is a schematic diagram of the collection device.

[0025] Explanation of key symbols:

[0026] 1. Placement box; 2. Partition net; 3. Sealing plate; 4. Turntable; 5. Fixing column; 6. Water supply pipe; 7. Mounting frame; 8. Collection box; 9. Pull ring; 10. Connecting rod; 11. Connecting pipe; 12. Screening box; 13. Fixing bolt; 14. Top plate; 15. Limiting groove; 16. Discharge port; 17. Interception net; 18. Bolt hole; 19. Collection basket; 20. Overflow pipe; 21. Drain pipe; 22. Limiting plate; 23. Drainage port. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example 1:

[0029] Please combine Figure 1 - Figure 5 An auxiliary screening device for collecting fish fry according to this embodiment includes:

[0030] The placement box 1 has a connecting pipe 11 fixed to one side of its outer wall, which communicates with the inside of the box. The side of the placement box 1 facing the connecting pipe 11 has an exhaust port 23. An intercepting net 17 is installed inside the connecting pipe 11. The intercepting net 17 is used to screen the fry, allowing smaller fry to pass through while intercepting larger fry. The exhaust port 23 is used to discharge the remaining larger fry after screening.

[0031] The screening mechanism includes a screening box 12 rotatably connected inside a placement box 1, a fixed post 5 fixed at the center of the bottom of the screening box 12, and multiple partitions 2 fixed between the fixed post 5 and the inner ring of the screening box 12. Two adjacent partitions 2 and the inner ring of the screening box 12 form a screening space. The inner wall of the screening box 12 has an outlet 16 for discharging fish fry from the screening space, and a sealing plate 3 for sealing itself is detachably installed inside the outlet 16. Both the placement box 1 and the screening box 12 are cylindrical structures, with the outer ring of the screening box 12 abutting against the inner ring of the placement box 1. The bottom of the connecting pipe 11 is flush with the bottom of the outlet 16. The multiple screening spaces allow the sealing plate 3 in one screening space directly opposite the connecting pipe 11 to be pulled upwards during fry screening, thus opening the outlet 16. Smaller fry in this screening space can pass through the intercepting net 17 with the water flow, while larger fry remain in the screening space. After the small fish fry in the screening space are screened, the screening space is sealed with sealing plate 3. Then, the fixed column 5 is rotated to move the screening space away from the connecting pipe 11. At the same time, the screening space adjacent to the screening space is rotated to the position facing the connecting pipe 11. This allows the fry in the screening space facing the connecting pipe 11 to be screened. After the screening is completed, the fry in the next screening space are screened. The larger fish fry remaining in the screening space can be discharged by rotating the screening space to the drain port 23 and then opening the sealing plate 3 in the screening space. After the fish fry are discharged, the sealing plate 3 is closed, and then a new batch of fish fry to be screened can be put into the screening space again. This achieves the purpose of continuous screening without increasing the number of large fish fry in the screening space, thereby effectively improving the screening efficiency.

[0032] The collection mechanism includes a collection box 8 connected to the other end of a connecting pipe 11 and a collection basket 19 placed inside the collection box 8. An overflow pipe 20 is installed on the upper side of one side of the collection box 8, and a protective net is installed inside the overflow pipe 20 to prevent the fish fry in the collection box 8 from being discharged from the overflow pipe 20. Connecting rods 10 are fixed to the top of the opposite outer walls of the collection basket 19. The tops of the two connecting rods 10 extend to the top of the collection box 8 and are fixed with pull rings 9. The fry discharged from the connecting pipe enter the collection box 8, and the overflow pipe 20 can drain excess water from the collection box 8. When it is necessary to take out the fry in the collection box 8, the pull rings 9 can be held to take out the collection basket 19 from the collection box 8, thereby facilitating the removal of the fish fry from the collection box 8.

[0033] In this embodiment, a turntable 4 is installed on the top of the fixed column 5, and a drain pipe 21 is installed on the bottom side of the collection box 8. A valve is installed on the drain pipe 21. The turntable 4 is designed to facilitate the rotation of the fixed column 5, thereby driving multiple screening spaces to rotate. The drain pipe 21 is designed to drain the remaining water in the collection box 8.

[0034] In this embodiment, the top of the discharge port 16 is an open structure. Limiting grooves 15 are opened on both opposite sides of the discharge port 16, extending along its length. Limiting plates 22 are fixed to both long sides of the sealing plate 3, extending along its length. The two limiting plates 22 are respectively inserted into the two limiting grooves 15 to secure the sealing plate 3 within the discharge port 16. A top plate 14 is fixed to the top of the sealing plate 3, extending along its top surface. Both ends of the top surface of the top plate 14 are threaded with fixing bolts 13 for locking the sealing plate 3. The top plates 14 on both sides of the discharge port 16... Each part is provided with bolt holes 18 for connecting the fixing bolts 13. The setting of the limiting groove 15 and the limiting plate 22 ensures that when the sealing plate 3 is locked inside the discharge port 16, it will not be expanded by the water pressure in the screening space. The setting of the fixing bolts 13 and the top plate is to fix the sealing plate 3 to the screening box 12 with the fixing bolts 13 after the sealing plate 3 is opened and closed inside the discharge port 16, thereby preventing the sealing plate 3 from loosening. When opening the sealing plate 3, first unscrew the fixing bolts 13 to the outside of the bolt holes 18, and then pull the sealing plate 3 upward.

[0035] Example 2:

[0036] Combination Figure 1 and Figure 3 Based on Example 1, this embodiment is further improved in that: a mounting frame 7 is installed on the top of the placement box 1, which is located directly above the connecting pipe 11. A water supply pipe 6 is installed on the mounting frame 7 for supplying water to a screening space directly opposite the connecting pipe 11. The water supply pipe 6 is connected to an external water pipe through a pipe, so that water can be conveniently supplied to the screening space during screening, avoiding the water in the screening box 12 from being drained. At the same time, it is also convenient for the fish fry in the screening space to pass through the interception net 17 with the water flow.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An auxiliary screening device for fry collection, characterized by, include: The placement box has a connecting pipe fixed to one side of its outer wall, which communicates with its interior. The side of the placement box facing the connecting pipe has an air vent, and an intercepting net is installed inside the connecting pipe. The screening mechanism includes a screening box rotatably connected inside a placement box, a fixed column fixed at the center of the bottom of the screening box, and multiple partitions fixed between the fixed column and the inner ring of the screening box. Two adjacent partitions and the inner ring of the screening box form a screening space. The inner wall of the screening box is provided with a discharge port for discharging fish fry in the screening space, and a sealing plate for sealing itself is detachably installed in the discharge port. A collection mechanism includes a collection box connected to the other end of a connecting pipe and a collection basket placed inside the collection box, wherein an overflow pipe is installed on the upper side of one side of the collection box; In one process, after the discharge port of a screening space is directly opposite the connecting pipe, the sealing plate inside the discharge port is pulled out, so that the smaller fish fry in the screening space can follow the water flow through the interception net into the collection box.

2. The auxiliary screening device for collecting fry according to claim 1, characterized in that, Both the placement box and the screening box are cylindrical structures, with the outer ring of the screening box abutting against the inner ring of the placement box, and the bottom of the connecting pipe being flush with the bottom of the discharge port.

3. The auxiliary screening device for collecting fry according to claim 1, wherein A turntable is installed on the top of the fixed column, and a drain pipe is installed on the bottom side of the collection box, with a valve installed on the drain pipe.

4. The auxiliary screening device for collecting fry according to claim 1, wherein The top of the placement box is equipped with a mounting bracket located directly above the connecting pipe, and the mounting bracket is equipped with a water supply pipe for supplying water to a screening space directly opposite the connecting pipe.

5. The auxiliary screening device for collecting fry according to claim 1, wherein The top of the discharge port is an open structure, and there are limiting grooves on both sides of the discharge port that are opened along their length. The two long sides of the sealing plate are fixed with limiting plates that are also arranged along their length. The two limiting plates are respectively inserted into the two limiting grooves to lock the sealing plate into the discharge port. The top of the sealing plate is fixed with a top plate that is arranged along its top surface length. The two ends of the top surface of the top plate are threaded with fixing bolts for locking the sealing plate. The top of both sides of the discharge port are provided with bolt holes for connecting the fixing bolts.

6. The auxiliary screening device for collecting fry according to claim 1, wherein Connecting rods are fixed to the top of the opposite outer walls of the collection basket, and the tops of the two connecting rods extend to the top of the collection box and are fixed with pull rings.

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