Fry sampling device for fry breeding

Abstract

The utility model discloses a fry sampling device for fry breeding, and relates to the technical field of fry sampling. Comprising an installation support, the installation support is provided with a fry sampling mechanism used for fry breeding, the sampling mechanism comprises a conical structure, fry are guided to enter smoothly, the escape possibility is reduced, the entering fry are separated through a partition plate, the fry are prevented from being excessively crowded, and the fry breeding efficiency is improved. When the sampling shell is lifted and taken out, a water source in the sampling shell can be discharged through the micropores, so that the situation that the equipment is heavy and convenient to operate due to excessive water source in the sampling shell is avoided, and meanwhile, the micropores are positioned below the conical shell, so that the sampling shell is convenient to operate; discharge of fry through the conical shell when an internal water source is aligned with the conical shell is avoided, it is ensured that a small amount of water is reserved in the sampling shell, fry are prevented from being damaged due to no water, and the fry survival rate is increased.

Description

Technical Field

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

[0002] Fish fry breeding mainly refers to the process of natural reproduction in a natural environment. Common natural reproduction methods include anadromous spawning and estuarine migration. Fish fry seek suitable spawning environments by swimming, casting, and digging in rivers, and then engage in a series of reproductive activities such as mating, spawning, and hatching. After reproduction, fish fry need to be checked regularly for their physical condition, but in the past, there was a lack of effective fish fry sampling devices, so a fish fry sampling device is needed.

[0003] Reference patent (Publication No.: CN221979827U; Publication Date: 2024-11-12) discloses a fish fry sampling device for fishpond aquaculture, including a flat plate and a sampling box. A U-shaped plate is fixedly connected to the upper end of the flat plate, and the lower end of the flat plate is fixedly connected to the upper end of the sampling box via a connecting plate. A door is rotatably connected to the side wall of the sampling box, and a closing mechanism for automatically and quickly closing the door is provided on the flat plate. The closing mechanism includes a vertical plate fixedly connected to the upper end of the flat plate. The entire sampling process is carried out quickly while the sampling box remains stationary, preventing the sampling box from impacting the fish fry and causing damage. This avoids the problem of using nets to scoop fish fry from the pond in existing technologies, which require rapid scooping and result in impact force on the fish fry, easily damaging them and affecting the observation results.

[0004] Based on the aforementioned patent, in the process of aquaculture, the sampling of fish fry is an important technical step, used to monitor the growth, health, and reproductive effects of the fish fry. However, traditional fish fry sampling mostly relies on manual operation, such as using nets or manual catching, which is time-consuming, labor-intensive, and has low sampling efficiency. Furthermore, the sampling devices lack functions such as attracting feed, separating, and draining water, making it difficult to meet the needs of modern aquaculture. Excessive or insufficient water sources can easily cause sampling difficulties and damage to the fry. Therefore, this utility model provides a fish fry sampling device for fish fry reproduction. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fish fry sampling device for fish fry breeding. It solves the problems of traditional fish fry sampling relying on manual operation, such as using nets or manual catching, which is time-consuming, labor-intensive, and has low sampling efficiency. Furthermore, the sampling device lacks functions such as attracting feed, separating, and draining water, making it difficult to meet the needs of modern aquaculture. Excessive or insufficient water sources can easily cause sampling difficulties and damage to fry.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fish fry sampling device for fish fry breeding, comprising a mounting bracket, wherein a sampling mechanism for fish fry breeding is provided on the mounting bracket, the sampling mechanism comprising:

[0007] The lifting assembly includes a sliding rod connected by a gear assembly inside the mounting bracket, and a sampling housing is fixed to the lower end of the sliding rod;

[0008] The sampling assembly includes a sampling shell with a feeding-attracting shell connected to the bottom of the inner part by a threaded assembly. A partition plate is fixed to the outer wall of the feeding-attracting shell. A conical shell is fixed through the outer ring of the sampling shell. Microholes are evenly distributed on the outer ring of the sampling shell, and the microholes are located below the conical shell.

[0009] Preferably, the gear assembly includes a motor fixed to the upper end face of the mounting bracket, a drive gear fixed to the output end of the motor, a slide rod that is slidably connected inside the mounting bracket, and tooth blocks that are uniformly fixed to the side wall of the slide rod, the tooth blocks being meshed with the drive gear.

[0010] Preferably, the threaded assembly includes a threaded tube fixed at the bottom of the inner side of the sampling shell, a threaded bolt connected to the inner thread of the threaded tube, and the feeding shell being fixedly connected to the upper end of the threaded bolt.

[0011] Preferably, the conical outer shell is configured in six groups, with the side of the conical outer shell with the larger diameter located on the outer ring of the sampling outer shell.

[0012] Preferably, the upper inner wall of the enticing shell is tightly fitted with a rubber stopper, and the partition plate is configured in three sets.

[0013] Preferably, a net bracket is attached to the upper end of the sampling shell, the outer wall of the net bracket is provided with a positioning hole, a positioning rod corresponding to the positioning hole is fixed to the upper outer wall of the sampling shell, and a pair of bolts are provided inside the net bracket.

[0014] Beneficial effects

[0015] This invention provides a fish fry sampling device for fish fry breeding. Compared with the prior art, it has the following advantages:

[0016] Firstly, this invention utilizes an enticing outer shell to attract fish fry by filling it with food, increasing the likelihood of fry actively entering the sampling device and improving sampling efficiency. The enticing outer shell is then connected to the sampling outer shell via threaded bolts and threaded holes, facilitating quick disassembly and installation, and making food replacement or cleaning convenient. When the sampling outer shell is placed in water, the fry are attracted by the food and enter the conical shell. The conical structure guides the fry smoothly into the shell, reducing the possibility of escape. A partition separates the fry, preventing overcrowding and reducing damage from mutual compression. Furthermore, when the sampling outer shell is raised and removed, the water inside is drained through micropores, preventing excessive water accumulation and ensuring the equipment remains heavy and easy to operate. Simultaneously, the micropores are located at the bottom of the conical shell, preventing fry from being drained through if the internal water source aligns with the shell, ensuring a small amount of water remains inside the sampling outer shell, preventing damage from complete dehydration and improving fry survival rates.

[0017] Secondly, the drive gear in this invention is driven by a motor, and then the drive gear meshes with the tooth block, causing the slide rod to slide up and down along the inner wall of the mounting bracket, thereby adjusting the height of the sampling shell at the lower end of the slide rod. This allows for accurate control of the height of the sampling shell, adapting to the sampling needs of water bodies at different depths. The motor drive replaces manual operation, reducing the tedious steps of manual adjustment and improving sampling efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the sampling shell of this utility model;

[0020] Figure 3 This is a cross-sectional view of the sampling shell of this utility model;

[0021] Figure 4 This is a schematic diagram of the feeding-attracting outer shell connection structure of this utility model;

[0022] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Mounting bracket; 2. Sliding rod; 201. Sampling shell; 202. Conical shell; 203. Micropore; 3. Feeding stimulant shell; 301. Divider plate; 302. Threaded tube; 303. Threaded bolt; 304. Rubber plug; 4. Positioning rod; 401. Net bag bracket; 402. Positioning hole; 403. Bolt; 5. Motor; 501. Drive gear; 502. Gear block. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a fish fry sampling device for fish fry breeding, including a mounting bracket 1, on which a fish fry sampling mechanism for fish fry breeding is provided, the sampling mechanism including:

[0026] The lifting assembly includes a mounting bracket 1 with a slide rod 2 connected by a gear assembly inside, and a sampling housing 201 fixed to the lower end of the slide rod 2;

[0027] The sampling assembly includes a sampling housing 201 with an enticing housing 3 connected by a threaded assembly at the bottom of the interior. A partition plate 301 is fixed to the outer wall of the enticing housing 3. A conical housing 202 is fixed through the outer ring of the sampling housing 201. Microholes 203 are evenly distributed on the outer ring of the sampling housing 201 and are located below the conical housing 202.

[0028] In a preferred embodiment, the gear assembly includes a motor 5 fixed to the upper surface of the mounting bracket 1, a drive gear 501 fixed to the output end of the motor 5, a slide rod 2 slidably connected inside the mounting bracket 1, and toothed blocks 502 uniformly fixed to the side wall of the slide rod 2. The toothed blocks 502 are meshed with the drive gear 501. The drive gear 501 is driven by the motor 5, and then the drive gear 501 meshes with the toothed blocks 502, causing the slide rod 2 to slide up and down along the inner wall of the mounting bracket 1, thereby adjusting the height of the sampling shell 201 at the lower end of the slide rod 2. This allows for accurate control of the height of the sampling shell 201, adapting to the sampling needs of water bodies at different depths. The motor 5 drives the operation instead of manual operation, reducing the tedious steps of manual adjustment and improving sampling efficiency. The motor model is a 5840-31ZY DC motor.

[0029] In a preferred embodiment, the threaded assembly includes a sampling housing 201 with a threaded tube 302 fixed to its bottom internally. A threaded bolt 303 is threadedly connected to the inside of the threaded tube 302. A feeding attractant housing 3 is fixedly connected to the upper end of the threaded bolt 303. Six sets of conical housings 202 are provided, with the larger diameter side of the conical housing 202 located on the outer ring of the sampling housing 201. A rubber stopper 304 is tightly fitted to the upper inner wall of the feeding attractant housing 3. Three sets of partition plates 301 are provided. Opening the rubber stopper 304 at the upper end of the feeding attractant housing 3 allows food to be added to attract fish fry, increasing the probability of the fish fry actively entering the sampling device and improving sampling efficiency. The feeding attractant housing 3 is then detached and installed from the sampling housing 201 via the threaded bolt 303 and the threaded tube 302, facilitating quick disassembly and installation of the feeding attractant housing 3 and convenient food replacement or cleaning. When the sampling shell 201 is placed in water, the fry are attracted to the conical shell 202 and then into the sampling shell 201 by food. The conical structure guides the fry to enter smoothly, reducing the possibility of escape. The partition plate 301 separates the fry, preventing overcrowding and reducing damage caused by mutual squeezing. When the sampling shell 201 is raised and removed, the water inside the sampling shell 201 is drained through the micropores 203, preventing excessive water in the sampling shell 201 and making the equipment heavier and easier to operate. At the same time, the micropores 203 are located below the conical shell 202, preventing the fry from being discharged through the conical shell 202 if the water inside is aligned with the conical shell 202. This ensures that a small amount of water is retained inside the sampling shell 201, preventing the fry from being damaged by complete dehydration and improving the fry survival rate.

[0030] In a preferred embodiment, a net support 401 is attached to the upper end of the sampling shell 201. The outer wall of the net support 401 is provided with a positioning hole 402. A positioning rod 4 corresponding to the positioning hole 402 is fixed to the upper outer wall of the sampling shell 201. A pair of bolts 403 are provided inside the net support 401. The net support 401 is attached to the upper surface of the sampling shell 201 through the cooperation of the positioning hole 402 and the positioning rod 4. Then, it is installed and disassembled by the bolts 403 to prevent the seedlings from running out at the top during sampling.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During operation, the drive gear 501 is first driven by the motor 5. Then, the drive gear 501 meshes with the toothed block 502, causing the slide rod 2 to slide up and down along the inner wall of the mounting bracket 1. This allows for height adjustment of the sampling shell 201 at the lower end of the slide rod 2, accurately controlling its height to adapt to sampling needs at different water depths. The bait-attracting shell 3 is then used to hold food to attract fish fry, increasing the likelihood of them actively entering the sampling device and improving sampling efficiency. The bait-attracting shell 3 is connected to the sampling shell 201 via a threaded bolt 303 and a threaded tube 302 for easy disassembly and installation, facilitating food replacement or cleaning. When the sampling shell 201 is placed in the water, the fish fry are attracted into the water by the food. The fish fry enter the sampling shell 201 through the conical shell 202. The conical structure guides the fish fry to enter smoothly, reducing the possibility of escape. The partition plate 301 separates the fish fry, preventing overcrowding and reducing damage caused by mutual squeezing. When the sampling shell 201 is raised and removed, the water inside the sampling shell 201 is discharged through the micro-holes 203, preventing excessive water in the sampling shell 201 and making the equipment heavier and easier to operate. At the same time, the micro-holes 203 are located below the conical shell 202, preventing the fish fry from being discharged through the conical shell 202 if the water inside is aligned with the conical shell 202. This ensures that a small amount of water is retained inside the sampling shell 201, preventing the fish fry from being damaged due to complete lack of water and improving the survival rate of the fish fry.

[0033] The net support 401 is attached to the upper surface of the sampling shell 201 through the positioning hole 402 and the positioning rod 4. It is then installed and removed by bolts 403 to prevent the seedlings from running out at the top during sampling.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 fish fry sampling device for fish fry breeding, comprising a mounting bracket (1), characterized in that: The installation support (1) is provided with a sampling mechanism for fry breeding, and the sampling mechanism comprises: The lifting assembly comprises a slide rod (2) provided in the installation support (1) and connected through a gear assembly, and the lower end of the slide rod (2) is fixed with a sampling shell (201); The sampling assembly comprises a bait shell (3) provided at the inner bottom of the sampling shell (201) and connected through a thread assembly, the outer wall of the bait shell (3) is fixed with a partition plate (301), the outer ring of the sampling shell (201) is fixed with a conical shell (202) penetratingly, and the outer ring of the sampling shell (201) is uniformly provided with micropores (203) below the conical shell (202).

2. The larva sampling device for larva breeding according to claim 1, characterized in that: The gear assembly comprises a motor (5) fixed on the upper end surface of the installation support (1), the output end of the motor (5) is fixed with a driving gear (501), the slide rod (2) is connected in sliding connection in the interior of the installation support (1) penetratingly, the side wall of the slide rod (2) is uniformly fixed with a tooth block (502), and the tooth block (502) is in meshing connection with the driving gear (501).

3. The larva sampling device for breeding of larva according to claim 1, characterized in that: The thread assembly comprises a threaded hole pipe (302) fixed at the inner bottom of the sampling shell (201), the threaded hole pipe (302) is internally screwed with a threaded bolt (303), and the bait shell (3) is fixedly connected to the upper end of the threaded bolt (303).

4. The larva sampling device for breeding of larva according to claim 1, wherein: The conical shell (202) is provided in six groups, and the larger-diameter side of the conical shell (202) is located at the outer ring of the sampling shell (201).

5. The larva sampling device for larva breeding according to claim 1, wherein: The upper end inner wall of the bait shell (3) is tightly fitted with a rubber plug (304), and the partition plate (301) is provided in three groups.

6. The larva sampling device for larva breeding according to claim 1, wherein: The upper end of the sampling shell (201) is fitted with a net bag support (401), the outer wall of the net bag support (401) is provided with a positioning hole (402), the upper end outer wall of the sampling shell (201) is fixed with a positioning rod (4) corresponding to the positioning hole (402), and the interior of the net bag support (401) is provided with a pair of bolts (403).

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