CN220493975U

CN220493975U - Fry screening device

Info

Publication number: CN220493975U
Application number: CN202320946748.5U
Authority: CN
Inventors: 徐如涛
Original assignee: Chengdu Aeronautic Polytechnic
Current assignee: Chengdu Aeronautic Polytechnic
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2024-02-20
Anticipated expiration: 2033-04-24

Abstract

The utility model discloses a fish fry screening device, which comprises a plurality of fish ponds which are distributed in a step shape from bottom to top; the fish pond positioned at the uppermost layer is connected with an upstream pond through a drain pipe; the water in the upstream pond sequentially flows through a plurality of layers of fish ponds from top to bottom; the fish pond positioned at the lowest layer is connected with the upstream water pond through a circulating water device; the two adjacent fish ponds are connected through the buffer slope, so that the problem that in the prior art, the fish fries with different sizes can be selected by adjusting the sizes of the fish screening holes, and the screening on whether salmon can swim and spawn can not be completely met is solved.

Description

Fry screening device

Technical Field

The utility model relates to the technical field of salmon artificial breeding equipment, in particular to a fish fry screening device.

Background

Salmon is also called salmon, which is a kind of deep sea fish, and is also a very well-known fish for backtracking, which spawns in a stream upstream of a fresh water river and returns to sea for fattening after delivery. Is used for eating frequently, and has high nutritive value and dietotherapy effect.

Salmon meat is delicious and thus cultivated in large quantities. 7 months to 11 months each year is the time for salmon to migrate and spawn. The grouped and formed fish can fly upwards like carp jumps to the gantry when the fish runs into the place with drop in the Australian flow. The fish-headed fish is orderly and repeatedly washed upwards under the head of the fish, but only a few red salmon can be washed with varnished cloth in a satisfactory way every day, and most of the fish can be killed due to energy failure. Scientists have attempted to flatten the way salmon goes back, but have found that salmon without waterfall challenges cannot lay eggs at all after coming back to the birth place. Therefore, the salmon to be artificially cultured needs to be screened, spawned with qualified salmon, and then artificially cultured.

In the prior art, the fish fries with different sizes are screened out mainly through a screen, for example, chinese patent publication CN 113545311A describes a fish fry screening system, which is characterized in that: the fish screening pool is used for loading fish fries to be screened, one side of the fish screening pool is provided with a fish containing box, and the fish containing box is used for loading the screened fish fries; the fish screening ponds and the fish holding boxes are matched one by one to form a fish screening mechanism which is multi-stage and extends downwards from top to bottom in a stepped manner; the fish screening pool of each stage of fish screening mechanism is communicated with the fish accommodating box through a connecting channel, an electric valve is arranged in the connecting channel, the input of the electric valve is connected with a controller, and the controller is used for controlling the opening of the electric valve so as to connect or disconnect the fish screening pool and the fish accommodating box; a water inlet pipe communicated with the uppermost first-stage fish screening pond is arranged on the uppermost first-stage fish screening pond and is used for injecting water into the corresponding fish screening pond, a rotary blade device is arranged at one end, facing away from the fish accommodating box, of each stage of fish screening pond, and the rotary blade device is used for driving fish fries to swim towards the corresponding fish accommodating box; the side wall of the fish screening pool of the rest fish screening mechanisms, except the fish screening mechanism of the lowest stage, is provided with a plurality of fish screening holes towards the side wall of the fish screening pool of the next stage, so that fish fries smaller than the fish screening holes can enter the fish screening pool of the next stage through the fish screening holes.

Therefore, in the prior art, the fish fry screening method can not completely meet the requirement of screening whether salmon can migrate or not by selecting the fish fries with different sizes through adjusting the sizes of the fish screening holes, so that the fish screening system in the prior art needs to be improved, natural water flow and migration fishways are simulated in a seedling raising chamber, and therefore the salmon fries which can spawn are screened.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, the screening of fish fries can not completely meet the screening of whether salmon can migrate and spawn or not by adjusting the sizes of fish screening holes to select fish fries with different sizes.

The aim of the utility model is achieved by the following technical scheme: a fish fry screening device comprises a plurality of fish ponds which are distributed in a ladder shape from bottom to top; the fish pond positioned at the uppermost layer is connected with an upstream pond through a drain pipe; the water in the upstream pond sequentially flows through a plurality of layers of fish ponds from top to bottom; the fish pond positioned at the lowest layer is connected with the upstream water pond through a circulating water device; two adjacent fish ponds are connected through a buffer slope;

further, the section of the buffer slope is trapezoid;

further, the buffer slopes are provided with flow dividing plates at intervals; the upper end of the flow dividing plate is connected with the upper end of the buffer slope; a space is reserved between the lower end of the flow dividing plate and the lower end of the buffer slope;

further, an anti-slip structure is arranged on the surface of the buffer slope; the anti-skid structure is a rough stone surface or a water grass mat;

further, the circulating water device comprises a water outlet pipe, a first return pipe, a second return pipe, a water inlet pipe and an adjusting pipe; the first return pipe and the second return pipe are arranged in parallel; the second return pipe is connected with a precipitation filter tank;

further, the water inlet end of the first return pipe is connected with the water outlet pipe; the water outlet end of the first return pipe is connected with the water inlet pipe; the first return pipe is provided with a first control valve and a first circulating pump;

the further technical proposal is that the water inlet end of the second return pipe is connected with the water outlet pipe through a precipitation filter tank; the water outlet end of the second return pipe is connected with the water inlet pipe; and the second return pipe is provided with a second control valve and a second circulating pump.

The utility model has the following advantages:

1. setting fish ponds with different height echelons in a fish farm, setting proper water flow impact degree to simulate a natural flow passage through a drain pipe connected with an upstream water pond and a water valve on the drain pipe, and finally, screening salmon to produce spawns so as to avoid economic loss caused by incapability of spawning;

2. after the lowest layer fish pond is connected with the upstream water pond through the circulating water device, water can be recycled in the device, and water resources can be saved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of an installation structure of the aquarium.

Fig. 3 is a schematic structural view of a buffer slope.

Fig. 4 is a schematic structural view of the circulating water apparatus.

In the figure: 1. a fish pond; 2. a drain pipe; 3. an upstream pool; 4. buffering the slope; 5. a diverter plate; 6. an anti-slip structure; 7. a water outlet pipe; 8. a first return pipe; 9. a second return pipe; 10. a water inlet pipe; 11. an adjusting tube; 12. a sedimentation filter tank; 13. a first control valve; 14. a first circulation pump; 15. a second control valve; 16. and a second circulation pump.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1: as shown in fig. 1 to 4, a fry screening device comprises a plurality of fishponds 1 which are distributed in a stepwise manner from bottom to top; the fishpond 1 at the uppermost layer is connected with an upstream water pond 3 through a drain pipe 2; the water in the upstream water pond 3 sequentially flows through a plurality of layers of fish ponds 1 from top to bottom; the fishpond 1 positioned at the lowest layer is connected with the upstream water pond 3 through a circulating water device; two adjacent fishponds 1 are connected through a buffer slope 4; in the embodiment, a conventional commercially available water valve can be arranged on the drain pipe 2, and the water flow and the flow rate are regulated to meet the requirements by controlling the water valve to be opened and closed. In the embodiment, the height and the gradient of the buffer slope 4 between each layer of the fishpond 1 are properly set, the recommended height is 0.2-0.5 m, the gradient is 45-90 degrees, and the buffer slope can also be properly selected according to the situation.

The section of the buffer slope 4 is trapezoid; in this embodiment, the cross section of the buffer slope 4 is configured as a trapezoid, and the trapezoid slope is beneficial to providing a certain space for upward transition of salmon, and plays a role in buffering water flow.

The buffer slope 4 is provided with flow dividing plates 5 at intervals; the upper end of the flow dividing plate 5 is connected with the upper end of the buffer slope 4; a space is reserved between the lower end of the splitter plate 5 and the lower end of the buffer slope 4; the diverter plate 5 is arranged on the buffer break, which is beneficial to buffering water flow and reducing water overflow caused by waves when flowing downwards; the space is reserved between the lower end of the splitter plate 5 and the lower end of the buffer break, which is favorable for reserving a shoal gathering space between the splitter plate 5 and the lower layer fish pond 1, when the lower layer fish pond 1 moves to the upper layer fish pond 1, salmon fries can gather at the lower end of the buffer break at first, the splitter plate 5 is at the position with the space reserved appropriately, and excessive collision caused by gathering salmon fries at the position is avoided.

An anti-slip structure 6 is arranged on the surface of the buffer slope 4; the anti-skid structure 6 is a rough stone surface or a water grass mat; in this embodiment, the anti-slip structure 6 is arranged on the surface of the buffering broken structure, so that the sliding back of salmon fries during transition can be reduced, and the anti-slip structure 6 is a rough stone surface or a water grass mat, so that the state of a natural runner can be simulated, and the salmon fries can migrate.

The circulating water device comprises a water outlet pipe 7, a first return pipe 8, a second return pipe 9, a water inlet pipe 10 and an adjusting pipe 11; the first return pipe 8 and the second return pipe 9 are arranged in parallel; the second return pipe 9 is connected with a sedimentation filter tank 12; in the embodiment, the water outlet pipe 7 discharges the water of the lowest layer of the fishpond 1, enters the water inlet pipe 10 through the first return pipe 8 or the second return pipe 9, and returns to the upstream pond 3 through the water inlet pipe 10, so that the recycling is facilitated; the sedimentation filter tank 12 connected with the second return pipe 9 is beneficial to carrying out sedimentation filtration on water when needed, and then the water flows back to the upstream water tank 3, so that the sedimentation filter is beneficial to carrying out sedimentation filtration on impurities, excreta and the like in the water body after long-time use; the adjusting pipe 11 is connected with a control valve and a water pump, and the adjusting pipe 11 is used for supplementing water level and water pressure in the upstream water tank 3.

The water inlet end of the first return pipe 8 is connected with the water outlet pipe 7; the water outlet end of the first return pipe 8 is connected with a water inlet pipe 10; the first return pipe 8 is provided with a first control valve 13 and a first circulating pump 14; in this embodiment, the first return pipe 8 is connected with the water outlet pipe 7 and the water inlet pipe 10 by adopting conventional pipe connectors, and the first control valve 13 and the first circulating pump 14 are all made of conventional commercial products, so that any reasonable model structure and appropriate connection and installation mode can be selected according to the needs.

The water inlet end of the second return pipe 9 is connected with the water outlet pipe 7 through a precipitation filter tank 12; the water outlet end of the second return pipe 9 is connected with a water inlet pipe 10; the second return pipe 9 is provided with a second control valve 15 and a second circulating pump 16; in the embodiment, the second return pipe 9 is connected with the sedimentation filter tank 12 through a conventional pipe connector, and any reasonable connection and installation mode can be selected according to the needs; the second control valve 15 and the second circulating pump 16 are conventional commercial products, any reasonable model structure and a proper connection installation mode can be selected according to the needs, the sedimentation filter tank 12 is conventional commercial products, and any reasonable model structure and a proper connection installation mode can be selected according to the needs; in this embodiment, the precipitation filtration is performed by laying activated carbon, cobblestones, or the like in the precipitation filtration tank 12.

The working process of the embodiment is as follows: opening a drain pipe 2 of an upstream water tank 3, enabling water stored in the upstream water tank 3 to flow through each stage of fish pond 1 from top to bottom, putting salmon fries into the lowest layer of fish pond 1, and screening out salmon fries capable of moving upwards from bottom to top; in normal use, the first control valve 13 and the first circulating pump 14 on the first return pipe 8 are opened, and the second control valve 15 and the second circulating pump 16 on the second return pipe 9 are closed, so that water in the lowest layer of the fishpond 1 flows back into the upstream pond 3 from the first return pipe 8; after a period of use, the first control valve 13 and the first circulating pump 14 are closed, the second control valve 15 and the second circulating pump 16 are opened, so that water in the lowest layer of fishpond 1 flows back into the upstream water pond 3 after passing through the precipitation filtering pond 12 on the second return pipe 9, water resources are saved, and impurities and excrement in the water are filtered.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A fish fry screening device comprises a plurality of fish ponds which are distributed in a ladder shape from bottom to top; the method is characterized in that: the fish pond positioned at the uppermost layer is connected with an upstream pond through a drain pipe; the water in the upstream pond sequentially flows through a plurality of layers of fish ponds from top to bottom; the fish pond positioned at the lowest layer is connected with the upstream water pond through a circulating water device; two adjacent fish ponds are connected through a buffer slope.

2. The fry screener of claim 1, wherein: the section of the buffer slope is trapezoid.

3. The fry screener of claim 2, wherein: the buffer slopes are provided with splitter plates at intervals; the upper end of the flow dividing plate is connected with the upper end of the buffer slope; and a space is reserved between the lower end of the flow dividing plate and the lower end of the buffer slope.

4. The fry screener of claim 2, wherein: an anti-slip structure is arranged on the surface of the buffer slope; the anti-skid structure is a rough stone surface or a water grass mat.

5. The fry screener of claim 1, wherein: the circulating water device comprises a water outlet pipe, a first return pipe, a second return pipe, a water inlet pipe and an adjusting pipe; the first return pipe and the second return pipe are arranged in parallel; and the second return pipe is connected with a precipitation filter tank.

6. The fry screener of claim 5, wherein: the water inlet end of the first return pipe is connected with the water outlet pipe; the water outlet end of the first return pipe is connected with the water inlet pipe; the first return pipe is provided with a first control valve and a first circulating pump.

7. The fry screener of claim 5, wherein: the water inlet end of the second return pipe is connected with the water outlet pipe through the precipitation filter tank; the water outlet end of the second return pipe is connected with the water inlet pipe; and the second return pipe is provided with a second control valve and a second circulating pump.