A fish fry collecting device
By using a fish fry collection device that combines light induction and water flow, and utilizing multi-layer sieves and a temporary storage chamber, the problems of low efficiency, poor screening, and low survival rate of traditional devices are solved, achieving efficient and uniform fish fry collection and ensuring high survival rates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional fish fry collection devices have low collection efficiency, making it difficult to quickly collect large quantities of fish fry. They also have poor screening effects, failing to effectively remove fish fry that do not meet specifications and impurities in the water. Furthermore, they lack temporary holding capabilities, resulting in low survival rates.
A fish fry collection device was designed, which uses a light-attracting lamp to guide fish fry into a pipe, and combines water flow for screening and temporary storage. Multi-layer sieves are used to screen the fish fry according to size, and a temporary storage chamber is used to ensure the survival rate. The device includes a combination of components such as a collection box, partitions, inner box, light-attracting lamp, conical tube, and sieves.
It improves the efficiency of fry collection, ensures uniform fry size, reduces the entry of impurities, and increases the survival rate, thus achieving efficient fry collection and temporary holding functions.
Smart Images

Figure CN224330175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aquaculture, and in particular to a fish fry collection device. Background Technology
[0002] In the field of aquaculture technology in the dam reservoir area, fish fry collection is a crucial step.
[0003] Traditional fish fry collection devices have many problems in practical applications. On the one hand, their collection efficiency is low, making it difficult to collect fish fry quickly and in large quantities, which affects the progress and scale of aquaculture. On the other hand, their screening effect on fish fry is poor, failing to effectively remove fish fry that do not meet the specifications and impurities such as garbage in the water, resulting in fish fry of inconsistent size and affecting quality. In addition, traditional devices lack good temporary holding function, and the collected fish fry are prone to die due to unsuitable environment and other reasons, resulting in a low survival rate. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a fish fry collection device, which has the advantages of improving collection efficiency, realizing fish fry size screening and ensuring fish fry survival rate, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides a fish fry collection device, including a collection box and connecting parts. A partition is fixedly connected to the center of the collection box, dividing the interior of the collection box into a temporary storage chamber and a separation chamber. An inner box is fixedly connected to the interior of the separation chamber, and a pipe is fixedly connected to the interior of the outer side of the separation chamber. The inner end of the pipe extends into the interior of the inner box and is fixedly connected to the interior of the inner box. A light-attracting lamp is installed inside the pipe, and a tapered tube is fixedly connected to the outer end of the pipe. An inner frame is fixedly connected to the interior of the inner box, and a slot is provided on the inner frame. A first sieve plate is inserted into the slot. A water discharge pipe is installed on the outer side of the temporary storage chamber, and the outer end of the water discharge pipe is installed with an external pump. A connecting pipe is fixedly connected to the interior of the partition, and the other end of the connecting pipe extends into the interior of the inner box and is fixedly connected to the interior of the inner box.
[0006] Optionally, a fixed frame is fixedly connected to the side wall of the temporary storage cavity, and a third sieve plate is inserted into the inside of the fixed frame. The two sides of the third sieve plate are fixed to the fixed frame through connectors, and the third sieve plate is positioned directly opposite the water discharge pipe.
[0007] Furthermore, the bottom of the temporary storage cavity is provided with a feeding box, and the bottom of the feeding box is fixedly connected to the bottom of the temporary storage cavity by bolts; the feeding box has a hollow structure around its perimeter, and the top of the feeding box is provided with a lid, which is directly snapped to the feeding box.
[0008] Optionally, a bearing circular frame is fixedly connected to the inner wall of the connection end between the pipe and the tapered pipe, and a second sieve plate is installed on the outer side of the bearing circular frame through a connector.
[0009] Optionally, a first top cover is installed on the upper surface of the inner box via a connector, and top columns are fixedly connected to both sides of the lower surface of the first top cover, with the lower ends of the top columns abutting against the upper surface of the first sieve plate.
[0010] Optionally, an upper frame is fixedly connected to the upper surface of the inner frame, the upper frame passes through the inner box and the collection box, and the upper end of the upper frame extends out of the collection box. A second upper cover is installed on the upper surface of the upper frame through a connector.
[0011] Furthermore, a third cover is installed on the upper surface of the collection box via a connector.
[0012] Compared with the prior art, the beneficial effects of the fish fry collection device of this utility model are as follows:
[0013] 1. When collecting fish fry, the fish fry collection device of this utility model is placed in water, and the pump body is connected to the water discharge pipe, so that water can enter the collection box from the outside and then be discharged from the collection box, forming a water flow. At this time, the light-attracting lamp is controlled to work, emitting fish-attracting light, so that the fish fry enter the pipe through the conical tube and then enter the inner box through the pipe. Since the inside of the collection box is divided into a separation chamber and a temporary storage chamber by a partition, and the separation chamber and the temporary storage chamber are connected by a connecting pipe, the fish fry are screened by the water flow and then enter the temporary storage chamber after being screened by the first sieve plate. Through continuous operation, the collection of fish fry is completed.
[0014] 2. The fish fry are guided into the water by the combination of a conical tube and a light-attracting lamp, while the water flow improves the collection efficiency. Subsequently, the fish fry can be screened by size through the combination of the first and second sieve plates, while reducing the infiltration of water debris, so that the collected fish fry are of uniform size. At the same time, the collected fish fry can be temporarily held to ensure the survival rate of the fish fry, thereby improving the efficiency and quality of fish fry collection. Attached Figure Description
[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1This is a schematic diagram of the fish fry collection device of this utility model;
[0017] Figure 2 This is a schematic diagram of the water discharge pipe part of this utility model;
[0018] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;
[0019] Figure 4 This is a schematic diagram of the connecting pipe structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the inner box structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the inner frame structure of this utility model.
[0022] In the picture:
[0023] 1. Collection box; 110. Partition; 111. Temporary storage chamber; 112. Separation chamber; 120. Inner box; 121. First top cover; 1211. Top column; 130. Inner frame; 131. Slot; 132. First sieve plate; 133. Top frame; 134. Second top cover; 140. Third top cover;
[0024] 2. Pipeline; 210. Tapered pipe; 220. Supporting circular frame; 230. Light-attracting lamp; 240. Second sieve plate;
[0025] 3. Water discharge pipe; 310. Fixed frame; 320. Third sieve plate;
[0026] 4. Connectors;
[0027] 5. Connecting pipe. Detailed Implementation
[0028] 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.
[0029] See below. Figures 1-6 The fish fry collection device of this utility model will be described in detail.
[0030] The fish fry collection device of this utility model includes a collection box 1 and a connector 4. A partition 110 is fixedly connected to the middle of the inside of the collection box 1, and the inside of the collection box 1 is divided into a temporary storage cavity 111 and a separation cavity 112 by the partition 110.
[0031] An inner box 120 is fixedly connected to the inside of the separation chamber 112. A pipe 2 is fixedly connected to the inside of the outer side of the separation chamber 112. The inner end of the pipe 2 extends into the inside of the inner box 120 and is fixedly connected to the inside of the inner box 120. A light-inducing lamp 230 is installed inside the pipe 2. A tapered pipe 210 is fixedly connected to the outer end of the pipe 2. An inner frame 130 is fixedly connected to the inside of the inner box 120. A slot 131 is provided on the inner frame 130. A first sieve plate 132 is inserted into the slot 131. A water discharge pipe 3 is installed on the outer side of the temporary storage chamber 111. The outer end of the water discharge pipe 3 is installed with an external pump body. A connecting pipe 5 is fixedly connected to the inside of the partition 110. The other end of the connecting pipe 5 extends into the inside of the inner box 120 and is fixedly connected to the inside of the inner box 120. A fixed frame 310 is fixedly connected to the side wall of the temporary storage chamber 111. A third sieve plate 320 is inserted into the inside of the fixed frame 310. The two sides of the third sieve plate 320 are fixed to the fixed frame 310 through connectors 4. The third sieve plate 320 is positioned directly opposite the water discharge pipe 3. A feeding box is provided at the bottom of the temporary storage chamber 111. The bottom of the feeding box is fixedly connected to the bottom of the temporary storage chamber 111 through bolts. The feeding box has a hollow structure around its perimeter, and a box cover is provided at the top of the feeding box. The box cover is directly snapped to the feeding box. A bearing circular frame 220 is fixedly connected to the inner wall of the connection end between the pipe 2 and the tapered pipe 210. A second sieve plate 240 is installed on the outer side of the bearing circular frame 220 through connectors 4. Connectors 4 can be bolts or other components that facilitate connection.
[0032] When the device is placed in water, the external pump is connected to the water discharge pipe 3 to form a "water intake-screening-temporary storage-drainage" cycle system. The light-attracting lamp 230 is installed inside the pipe 2 and emits light of a specific wavelength when it is working. By utilizing the phototaxis of fish fry, it attracts the surrounding fish fry to the inlet of the pipe 2. The tapered tube 210 at the outer end of the pipe 2 is funnel-shaped with a large opening and a narrow interior, which expands the trapping range. After being attracted by the light, the fish fry are more likely to enter the pipe 2 under the guidance of the water flow and the tapered tube 210, reducing the probability of escape. After the external pump is connected to the water discharge pipe 3, it is started to draw water from the temporary storage chamber 111, so that the inside of the collection box 1 is negatively pressured. External water enters the inner chamber 120 of the separation chamber 112 through the conical pipe 210 and the pipe 2, then flows into the temporary storage chamber 111 through the connecting pipe 5, and finally is discharged through the water discharge pipe 3, forming a continuous water flow cycle. The flow of water not only provides the power for the fish fry to enter the device, but also propels the fish fry to move in the device. The fish fry enter the inner chamber 120 through the pipe 2 with the water flow, and then enter the temporary storage chamber 111 through the first sieve plate 132, completing the collection process.
[0033] A second sieve plate 240 is installed on the bearing circular frame 220 at the connection between pipe 2 and tapered pipe 210. This can block larger debris, aquatic plants and other impurities in the water from entering pipe 2 and prevent blockage. The first sieve plate 132 is inserted into the slot 131 of the inner frame 130. The size of its sieve holes is set according to the size of the target fish fry. When the fish fry pass through the first sieve plate 132 with the water flow, the fish fry enter the temporary storage cavity 111, thus achieving the screening of fish fry size.
[0034] The third sieve plate 320 inside the side wall fixed frame 310 of the temporary storage cavity 111 is set directly opposite the water discharge pipe 3. The third sieve plate 320 is used to discharge water while preventing fish fry from being sent out. The wiring harness of the light attractant lamp 230 extends out of the pipe 2 so as to connect to the external power supply, thereby ensuring the normal operation of the light attractant lamp 230.
[0035] As a preferred technical solution of this utility model, the upper surface of the inner box 120 is equipped with a first upper cover 121 through the connector 4, and the lower surface of the first upper cover 121 is fixedly connected to the two sides of the lower surface of the first upper cover 121. The lower end of the top column 1211 abuts against the upper surface of the first sieve plate 132.
[0036] As a preferred technical solution of this utility model, an upper frame 133 is fixedly connected to the upper surface of the inner frame 130. The upper frame 133 passes through the inner box 120 and the collection box 1, and the upper end of the upper frame 133 extends out of the collection box 1. A second upper cover 134 is installed on the upper surface of the upper frame 133 through a connector 4.
[0037] As a preferred technical solution of this utility model, a third top cover 140 is installed on the upper surface of the collection box 1 through the connector 4.
[0038] The first top cover 121, the second top cover 134, and the third top cover 140 are all installed via connectors 4, which facilitates opening the collection box 1 and the inner box 120 to clean and replace components such as the first sieve plate 132, the second sieve plate 240, and the third sieve plate 320. The top column 1211 abuts against the first sieve plate 132 to ensure that the sieve plate is fixed and stable. The first sieve plate 132 can be removed for maintenance by removing the first top cover 121.
[0039] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of this utility model.
Claims
1. A fish fry collection device, comprising a collection box (1) and a connector (4), characterized in that: A partition (110) is fixedly connected to the middle of the inside of the collection box (1). The inside of the collection box (1) is divided into a temporary storage cavity (111) and a separation cavity (112) by the partition (110). The separation cavity (112) is fixedly connected to an inner box (120), and a pipe (2) is fixedly connected to the inside of the outer side of the separation cavity (112). The inner end of the pipe (2) extends into the inside of the inner box (120) and is fixedly connected to the inside of the inner box (120). A light-attracting lamp (230) is installed inside the pipe (2). A tapered pipe (210) is fixedly connected to the outer end of the pipe (2). An inner frame (130) is fixedly connected inside the inner box (120). A slot (131) is provided on the inner frame (130). A first sieve plate (132) is inserted into the slot (131). A water discharge pipe (3) is installed on the outside of the temporary storage cavity (111). The outer end of the water discharge pipe (3) is installed with an external pump body. A connecting pipe (5) is fixedly connected inside the partition (110). The other end of the connecting pipe (5) extends into the interior of the inner box (120) and is fixedly connected to the interior of the inner box (120).
2. The fish fry collection device according to claim 1, characterized in that, The side wall of the temporary storage cavity (111) is fixedly connected to a fixed frame (310), and a third sieve plate (320) is inserted inside the fixed frame (310). The two sides of the third sieve plate (320) are fixed to the fixed frame (310) through connectors (4), and the third sieve plate (320) is set directly opposite the water discharge pipe (3).
3. The fish fry collection device according to claim 1, characterized in that, The bottom of the temporary storage cavity (111) is provided with a feeding box, and the bottom of the feeding box is fixedly connected to the bottom of the temporary storage cavity (111) by bolts; the feeding box has a hollow structure around its perimeter, and the top of the feeding box is provided with a box cover, which is directly snapped to the feeding box.
4. The fish fry collection device according to claim 1, characterized in that, A bearing circular frame (220) is fixedly connected to the inner wall of the connection end of the pipe (2) and the tapered pipe (210), and a second sieve plate (240) is installed on the outer side of the bearing circular frame (220) through a connector (4).
5. The fish fry collection device according to claim 1, characterized in that, The upper surface of the inner box (120) is fitted with a first upper cover (121) via a connector (4). Top columns (1211) are fixedly connected to both sides of the lower surface of the first upper cover (121). The lower end of the top column (1211) abuts against the upper surface of the first sieve plate (132).
6. The fish fry collection device according to claim 1, characterized in that, The upper surface of the inner frame (130) is fixedly connected to the upper frame (133), the upper frame (133) passes through the inner box (120) and the collection box (1), and the upper end of the upper frame (133) extends out of the collection box (1). The upper surface of the upper frame (133) is fitted with a second upper cover (134) through a connector (4).
7. The fish fry collection device according to claim 1, characterized in that, The upper surface of the collection box (1) is fitted with a third cover (140) via a connector (4).