Roe collecting device

Abstract

The utility model discloses a roe collecting device, including isolation frame, timing mechanism, spacing mechanism and roe collecting mechanism, the upper end of isolation frame is provided with first buoyancy plate, the side wall of isolation frame is provided with grid, the lower part of isolation frame is provided with open structure, timing mechanism is provided above isolation frame, spacing mechanism is provided with spacing mechanism, and roe collecting mechanism is provided with spacing mechanism. The roe collecting mechanism comprises a second buoyancy plate and artificial aquatic plants, the second buoyancy plate is arranged in the isolation frame, and the lower end of the second buoyancy plate penetrates through the open structure to be fixedly connected with the artificial aquatic plants; the buoyancy of the first buoyancy plate in water is larger than the total gravity of the isolation frame, the timing mechanism and the limiting mechanism, the buoyancy of the second buoyancy plate in water is larger than the total gravity of the roe collecting mechanism, the device can collect roes and automatically isolate the roes at regular time, the roe collecting efficiency is effectively improved, and the survival rate of the roes is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of fish breeding, in particular to a fish egg collection device. Background Art

[0002] A fish egg collection device is a fish breeding equipment used to collect and transfer fish eggs produced by broodstock and artificially breed the fish eggs. It can effectively improve the hatching rate of fish eggs and the survival rate of fish larvae. Therefore, the fish egg collection device has become a common link in the breeding of ornamental fish, edible fish and laboratory fish. However, in traditional technologies, waterweeds or waterweed mimics are commonly used to induce fish to lay eggs, and the waterweeds or waterweed mimics with fish eggs are collected. However, many fish have the habit of eating eggs. If the fish eggs are not collected in time, they will be swallowed by the broodstock or other fish. After retrieval, the Chinese utility model patent with the publication number CN208821493U discloses a fish egg and fry cultivation device, including a frame, a fishnet and artificial waterweeds. This solution attracts fish to lay eggs through artificial waterweeds. After the fish eggs hatch into fry, the device is taken out, and the adult fish and fry are separated by using the fishnet. However, when this solution is applied to fish with the habit of eating eggs, it will cause the fish eggs to be swallowed by the adult fish, affecting the collection of fish eggs and reducing the survival rate of fish eggs. Therefore, the technical field of fish breeding needs a fish egg collection device that can improve the survival rate of fish eggs. Summary of the Utility Model

[0003] Aiming at the above-mentioned prior art, the utility model aims to provide a fish egg collection device, and the main technical problem to be solved is how to improve the survival rate of fish eggs.

[0004] To achieve the above object, the technical solution of the embodiment of the utility model is realized as follows:

[0005] A fish egg collection device includes an isolation frame, a timing mechanism, a limiting mechanism and a fish egg collection mechanism. A first buoyancy plate is arranged at the upper end of the isolation frame. The side wall of the isolation frame is set as a grid, and the lower part of the isolation frame is set as an open structure. The timing mechanism is arranged above the isolation frame. The fish egg collection mechanism includes a second buoyancy plate and artificial waterweeds. The second buoyancy plate is arranged inside the isolation frame. The lower end of the second buoyancy plate passes through the open structure and is fixedly connected with the artificial waterweeds. The buoyancy of the first buoyancy plate in water is greater than the total gravity of the isolation frame, the timing mechanism and the limiting mechanism. The buoyancy of the second buoyancy plate in water is greater than the total gravity of the fish egg collection mechanism. The lower end of the timing mechanism is connected with the limiting mechanism. The timing mechanism can control the opening or closing of the limiting mechanism, and further control the floating or maintaining the original position of the second buoyancy plate.

[0006] Preferably, the artificial aquatic plants include a foam rod and cotton strips. The upper end of the cotton strips is fixedly connected to the second buoyancy plate, and a plurality of the cotton strips are radially arranged around the foam rod.

[0007] Preferably, the lower end of the cotton strips is fixedly connected to a covering plate.

[0008] Preferably, the limiting mechanism is symmetrically arranged on both sides of the isolation frame. The limiting mechanism includes a threaded rod, a connecting cross bar, a connecting vertical rod, and a folding plate. A threaded hole matching the threaded rod is arranged in the middle of the connecting cross bar, and the threaded rod is threadedly connected to the threaded hole. The folding plate includes a first limiting plate, a second limiting plate, and a connecting seat. The upper end of the first limiting plate is rotatably connected to the lower end of the connecting vertical rod through a rotating shaft. The upper end of the second limiting plate is rotatably connected to the lower end of the first limiting plate through a rotating shaft. The lower end of the second limiting plate is rotatably connected to the connecting seat, and the connecting seat is fixedly connected to the lower end of the side wall of the isolation frame.

[0009] Preferably, the timing mechanism is set as a spring timing module. The upper end of the spring timing module is connected to the threaded rod, and the spring timing module can drive the threaded rod to rotate.

[0010] Preferably, a rotating handle is arranged at the upper end of the threaded rod.

[0011] Preferably, the timing mechanism is set as an electronic timing motor. The upper end of the electronic timing motor is connected to the threaded rod, and the electronic timing motor can drive the threaded rod to rotate.

[0012] The beneficial effects of the present utility model are as follows: By arranging the fish egg collection mechanism with the artificial aquatic plants in this application, it can attract fish to go for mating and spawning. At the same time, the limiting mechanism is arranged to control the floating of the fish egg collection mechanism. The limiting mechanism cooperates with the timing mechanism to control the fish egg collection mechanism to float into the isolation frame. Through the cooperation of the isolation frame, the timing mechanism, the limiting mechanism, and the fish egg collection mechanism, after the fish eggs are collected by using the artificial aquatic plants, the artificial aquatic plants attached with fish eggs can be automatically moved into the isolation frame. The side wall of the isolation frame is set as a grid structure, which can block adult fish but does not affect the water flow, avoiding the lack of oxygen or rotting of fish eggs and improving the survival rate of fish eggs.

[0013] In summary, this application can collect fish eggs and isolate them regularly and automatically, effectively improving the collection efficiency and survival rate of fish eggs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a fish egg collection device (hiding the grid) in Embodiment 1 of this application;

[0015] Figure 2 It is a schematic structural diagram of the floating state (with the grid hidden) of the fish egg collection mechanism in Embodiment 1 of the present application;

[0016] Figure 3 It is a schematic structural diagram of the isolation frame in Embodiment 1 of the present application;

[0017] Figure 4 It is an enlarged view of part A in Embodiment 1 of the present application;

[0018] Figure 5 It is a schematic structural diagram of a fish egg collection device (with the grid hidden) in Embodiment 2 of the present application;

[0019] Explanation of the reference numerals in the attached drawings:

[0020] 1. Isolation frame; 2. Timing mechanism; 3. Limiting mechanism; 4. Fish egg collection mechanism;

[0021] 101. First buoyancy plate; 102. Grid;

[0022] 201. Spring timing module; 202. Rotating handle; 203. Electronic timing motor; 204. Control knob;

[0023] 301. Threaded rod; 302. Connecting cross bar; 303. Connecting vertical bar; 304. Folding plate; 305. Threaded hole; 306. First limiting plate; 307. Second limiting plate; 308. Connecting seat;

[0024] 401. Second buoyancy plate; 402. Artificial waterweed; 403. Foam rod; 404. Cotton cloth strip; 405. Cover plate; Detailed implementation manners

[0025] The technical solution of the present utility model will be further elaborated in detail below in conjunction with the accompanying drawings of the specification and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. In the following description, the expression "some embodiments" is mentioned, which describes a subset of all possible embodiments. However, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0026] It should be further noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0027] Embodiment 1

[0028] Referring to the attached Figures 1-4 , the present application provides a fish egg collection device, including an isolation frame 1, a timing mechanism 2, a limiting mechanism 3 and a fish egg collection mechanism 4. A first buoyancy plate 101 is provided at the upper end of the isolation frame 1, the side wall of the isolation frame 1 is provided as a mesh 102, and the lower part of the isolation frame 1 is provided as an open structure. The timing mechanism 2 is provided above the isolation frame 1. The fish egg collection mechanism 4 includes a second buoyancy plate 401 and artificial waterweeds 402. The second buoyancy plate 401 is provided inside the isolation frame 1, and the lower end of the second buoyancy plate 401 passes through the open structure and is fixedly connected to the artificial waterweeds 402. The buoyancy of the first buoyancy plate 101 in water is greater than the total gravity of the isolation frame 1, the timing mechanism 2 and the limiting mechanism 3. The buoyancy of the second buoyancy plate 401 in water is greater than the total gravity of the fish egg collection mechanism 4. The lower end of the timing mechanism 2 is connected to the limiting mechanism 3, and the timing mechanism 2 can control the opening or closing of the limiting mechanism 3, thereby controlling the floating or maintaining the original position of the second buoyancy plate 401. By providing the fish egg collection mechanism 4 with the artificial waterweeds 402, this device can attract fish to mate and lay eggs. At the same time, the limiting mechanism 3 is provided to control the floating of the fish egg collection mechanism 4. The limiting mechanism 3 cooperates with the timing mechanism 2 to be able to control the fish egg collection mechanism 4 to float into the isolation frame 1 at a fixed time. Through the cooperation of the isolation frame 1, the timing mechanism 2, the limiting mechanism 3 and the fish egg collection mechanism 4, this device can collect fish eggs using the artificial waterweeds 402 and automatically move the artificial waterweeds 402 with attached fish eggs into the isolation frame 1. The side wall of the isolation frame 1 is provided as a mesh 102 structure, which can block adult fish but does not affect the flow of water, avoiding oxygen deficiency or decay of fish eggs and improving the survival rate of fish eggs. And when the second buoyancy plate 401 floats, it drives the fish egg collection mechanism 4 to move, which will startle and expel adult fish in the waterweeds, preventing adult fish from entering the isolation frame 1. In summary, this device can collect fish eggs and isolate them automatically at a fixed time, effectively improving the fish egg collection efficiency and survival rate.

[0029] Specifically, the artificial waterweed 402 includes a foam rod 403 and cotton strips 404. The upper end of the cotton strip 404 is fixedly connected to the second buoyancy plate 401, and a plurality of the cotton strips 404 are radially arranged around the foam rod 403. Optionally, the foam rod 403 and the cotton strips 404 in the artificial waterweed 402 of the present device can also be made of common soft materials that do not harm fish, such as EVA plastic or rubber. Through the cooperation of the foam rod 403 and the cotton strips 404, the present device can effectively simulate waterweeds and attract fish to reproduce and lay eggs.

[0030] Specifically, the lower end of the cotton strip 404 is fixedly connected to the cover plate 405. The height of the fish egg collection mechanism 4 is the same as the height of the internal space of the isolation frame 1. By providing the cover plate 405, when the second buoyancy plate 401 floats, it covers the bottom of the isolation frame 1, effectively preventing adult fish from entering the bottom of the isolation frame 1. At the same time, the cover plate 405 is set to have a density higher than that of water, which can ensure that the artificial waterweed 402 is straightened by the tensile force between the second buoyancy plate 401 and the cover plate 405, maintaining a stretched state, preventing entanglement and bending, ensuring the gap for fish to lay eggs and swim between the artificial waterweeds 402, and improving the fish egg collection efficiency.

[0031] Specifically, the limiting mechanism 3 is symmetrically arranged on both sides of the isolation frame 1. The limiting mechanism 3 includes a threaded rod 301, a connecting cross bar 302, a connecting vertical bar 303, and a folding plate 304. A threaded hole 305 matching the threaded rod 301 is provided in the middle of the connecting cross bar 302, and the threaded rod 301 is threadedly connected to the threaded hole 305. The folding plate 304 includes a first limiting plate 306, a second limiting plate 307, and a connecting seat 308. The upper end of the first limiting plate 306 is rotatably connected to the lower end of the connecting vertical bar 303 through a rotating shaft. The upper end of the second limiting plate 307 is rotatably connected to the lower end of the first limiting plate 306 through a rotating shaft. The lower end of the second limiting plate 307 is rotatably connected to the connecting seat 308, and the connecting seat 308 is fixedly connected to the lower end of the side wall of the isolation frame 1. By setting the limiting mechanism 3 in this device, the floating state of the fish egg collection mechanism 4 can be controlled. When the threaded rod 301 rotates and drives the connecting vertical bar 303 to move downward through the connecting cross bar 302, the first limiting plate 306 and the second limiting plate 307 rotate to form a triangular protrusion, so that the first buoyancy plate 101 is blocked and cannot float. When the threaded rod 301 rotates in the reverse direction and drives the connecting vertical bar 303 to move upward through the connecting cross bar 302, the first limiting plate 306 and the second limiting plate 307 forming the triangular protrusion rotate, and the first limiting plate 306, the second limiting plate 307, and the connecting vertical bar 303 are straightened and in the same straight line, so that the first buoyancy plate 101 is no longer blocked and then floats under the action of buoyancy. By cooperating the limiting mechanism 3 with the timing mechanism 2, the effect of timing control for the fish egg collection device to enter the isolation frame 1 can be achieved.

[0032] Specifically, the timing mechanism 2 is set as a spring timing module 201. The upper end of the spring timing module 201 is connected to the threaded rod 301, and the spring timing module 201 can drive the threaded rod 301 to rotate. The spring timing module 201 adopts an existing spring timing structure. For example, the spring timing module in a spring-type timing feeding device with the application number CN201820261374.2 and the name of a spring-type timing feeding device can be used. Connect the spring timing module in this patent to the threaded rod 301 to control the floating of the fish egg collection mechanism 4 at a fixed time. At the same time, other existing timing spring devices can also be used in this device to be connected to the threaded rod 301 to achieve the same effect. By using a mechanical mechanism to control the floating of the fish egg collection mechanism 4 at a fixed time, the reliability of this device can be improved.

[0033] Specifically, a rotating handle 202 is disposed at the upper end of the threaded rod 301. The rotating handle 202 disposed at the upper end of the threaded rod 301 makes the operation of the clockwork timing module 201 more convenient, and can improve the convenience of using the clockwork timing module 201.

[0034] Example 2

[0035] See attached Figure 5 The difference between this embodiment and embodiment 1 is that the timing mechanism 2 is configured as an electronic timing motor 203, the upper end of the electronic timing motor 203 is connected to the threaded rod 301, and the electronic timing motor 203 can drive the threaded rod 301 to rotate. The electronic timing motor 203 is configured as a timer connected to an electric motor, so that the electric motor can be started at a fixed time. The electric motor is connected to the threaded rod 301 to achieve the effect of pulling the limiting mechanism 3 at a fixed time, so that the fish egg collecting mechanism 4 floats. The timer in this embodiment adopts a 555 timer. It should be understood that the timer can also adopt other timers that can achieve the effect of timing control of the electric motor. Through the electronic timing motor 203, this device can be used more conveniently.

[0036] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fish egg collection device, characterized in that, It includes an isolation frame, a timing mechanism, a limit mechanism and an egg collection mechanism. A first buoyancy plate is arranged at the upper end of the isolation frame. The side wall of the isolation frame is set as a grid, and the lower part of the isolation frame is set as an open structure. The timing mechanism is arranged above the isolation frame. The egg collection mechanism includes a second buoyancy plate and artificial waterweeds. The second buoyancy plate is arranged inside the isolation frame. The lower end of the second buoyancy plate passes through the open structure and is fixedly connected to the artificial waterweeds. The buoyancy of the first buoyancy plate in water is greater than the total gravity of the isolation frame, the timing mechanism and the limit mechanism. The buoyancy of the second buoyancy plate in water is greater than the total gravity of the egg collection mechanism. The lower end of the timing mechanism is connected to the limit mechanism. The timing mechanism can control the opening or closing of the limit mechanism, and further control the floating or maintaining the original position of the second buoyancy plate.

2. The fish egg collection device according to claim 1, characterized in that, The artificial waterweeds include foam rods and cotton cloth strips. The upper end of the cotton cloth strip is fixedly connected to the second buoyancy plate, and several cotton cloth strips are radially arranged around the foam rod.

3. The fish egg collection device according to claim 2, characterized in that, The lower end of the cotton cloth strip is fixedly connected to a cover plate.

4. The fish egg collection device according to claim 1, wherein, The limit mechanism is symmetrically arranged on both sides of the isolation frame. The limit mechanism includes a threaded rod, a connecting cross bar, a connecting vertical bar and a folding plate. A threaded hole matching the threaded rod is arranged in the middle of the connecting cross bar, and the threaded rod is threadedly connected to the threaded hole. The folding plate includes a first limiting plate, a second limiting plate and a connecting seat. The upper end of the first limiting plate is rotatably connected to the lower end of the connecting vertical bar through a rotating shaft. The upper end of the second limiting plate is rotatably connected to the lower end of the first limiting plate through a rotating shaft. The lower end of the second limiting plate is rotatably connected to the connecting seat, and the connecting seat is fixedly connected to the lower end of the side wall of the isolation frame.

5. The fish egg collection device according to claim 4, characterized in that, The timing mechanism is set as a spring timing module. The upper end of the spring timing module is connected to the threaded rod, and the spring timing module can drive the threaded rod to rotate.

6. The fish egg collection device according to claim 5, wherein, A rotating handle is arranged at the upper end of the threaded rod.

7. The fish egg collection device according to claim 4, characterized in that, The timing mechanism is set as an electronic timing motor. The upper end of the electronic timing motor is connected to the threaded rod, and the electronic timing motor can drive the threaded rod to rotate.

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