Fry hatching device

Abstract

The utility model discloses a fry hatching device which comprises a water circulation unit, a hatching unit and an observation groove, the water circulation unit has filtering and disinfecting functions and purifies hatching water quality, the hatching unit is provided with a hemispherical bottom surface, roes are turned over through water flow, and the influence of viscous roes on the hatching process is avoided. The hatching device can independently perform the hatching function, does not need special supporting facilities, and is convenient to use. According to the utility model, the hatching conditions are controllable, the viscous eggs can be directly hatched without debonding, the damage to the roes is reduced, and the hatching rate of fries is improved. The device is not limited by sites, convenient to move and simple in structure.

Description

Technical Field

[0001] The utility model relates to the field of fish fry hatching, in particular to a fish fry hatching device. Background Art

[0002] At present, the artificial hatching of fish generally adopts the method of hatching ring or hatching bucket. The hatching ring is generally built outdoors, with a large site scale, high construction cost, and large water and electricity consumption. It is mainly used for artificial hatching of the four major carp fry; the hatching bucket is a funnel-shaped barrel, which is erected by a bracket.

[0003] The hatching ring is large in scale and is not suitable for small-scale hatching. The hatching conditions are difficult to control and are easily affected by the weather. Dead corners are easily formed in the hatching ring, causing the fish eggs to accumulate and die.

[0004] The hatching bucket has a simple structure and cannot perform the hatching function alone. It is inconvenient to use because there are no special supporting facilities. The hatching conditions are also difficult to control. In addition, it is generally difficult to implement circulating water utilization in both methods, so the energy consumption is high. Both methods are suitable for hatching non-sticky eggs or sticky eggs after debonding. The debonding process is complicated and will cause varying degrees of damage to the fish eggs, affecting the hatching rate of the fry. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a fry hatching device with controllable hatching conditions and capable of independently performing the hatching function.

[0006] To this end, the utility model adopts the following technical solutions:

[0007] A fry hatching device comprises a water circulation unit, a hatching unit and an observation tank;

[0008] The hatching unit comprises a hatching bucket and a water inlet pipe, wherein the water inlet pipe is vertically extended into and fixed in the hatching bucket to guide water flow to turn over the fish eggs; the top of the water inlet pipe is sealed, and an air hole is arranged on the upper part of the water inlet pipe;

[0009] The observation tank is used for feeding and observing the fish eggs after hatching;

[0010] The water circulation unit receives the water overflowing from the observation tank and delivers the water into the water inlet pipe through the water diversion pipe;

[0011] The incubation unit discharges the water above the inlet end of the incubator drain pipe into the observation tank through the incubator drain pipe;

[0012] The incubation unit and the observation tank are arranged above the circulation unit;

[0013] The bottom of the hatching bucket is hemispherical, and the side wall thereof is provided with scales, and the scales are used to observe the height of the flipping of the fish eggs.

[0014] Preferably, the bottom end of the water inlet pipe is 5-10 mm away from the bottom of the hatching bucket.

[0015] Preferably, the air hole is higher than the water level in the hatching bucket by a distance of ≥10 cm.

[0016] Preferably, a water flow regulating valve is provided on the water diversion pipe, and the water flow regulating valve is used to adjust the flow rate of water in the water diversion pipe.

[0017] Preferably, the water inlet of the incubator drain pipe is connected to the upper part of the incubation bucket.

[0018] Preferably, an observation tank overflow pipe is further provided in the observation tank, and the observation tank overflow pipe is used to introduce water that is higher than the inlet end of the observation tank overflow pipe into the water circulation unit.

[0019] Preferably, the water circulation unit comprises a water tank, a water pump, a nano gas disc, an electric heater and a filter tank;

[0020] The filter tank is mounted above the water tank, the observation tank is mounted above the filter tank 11, and the water pump, nano gas disk and electric heater are arranged at the bottom of the water tank;

[0021] The water pump is used to discharge the water in the water tank into the water diversion pipe;

[0022] The nano gas disk is used to increase the oxygen content of the water in the water tank.

[0023] Preferably, an ultraviolet disinfection lamp and filter cotton are provided in the filter tank, and a through hole is provided at the bottom of the filter tank; the filter tank is used to receive water overflowing from the observation tank, and discharge it into the water tank after disinfection and filtration.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] 1. The utility model can perform the hatching function independently, does not require special supporting facilities, and is easy to use.

[0026] 2. The hatching conditions of the utility model are controllable, and the sticky eggs can be directly hatched without debonding, thereby reducing the damage to the eggs and improving the hatching rate of the fry.

[0027] 3. The air holes on the water inlet pipe of the utility model can prevent the fish eggs from being damaged by the siphon effect of the water flow when the water pump is powered off.

[0028] 4. The water in the utility model will pass through the pores when flowing into the water inlet pipe, and the air brought in by the pores can be dissolved in the water, thereby increasing the oxygen content in the water.

[0029] 5. The utility model is not limited by the site, is easy to move and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the utility model.

[0031] In the figure:

[0032] 1. Water tank; 2. Water pump; 3. Water pipe; 4. Hatching bucket;

[0033] 5. Water regulating valve; 6. Air hole; 7. Water inlet pipe; 8. Incubator drain pipe;

[0034] 9. Observation tank; 10. Observation tank overflow pipe; 11. Filter tank; 12. Filter cotton;

[0035] 13. Ultraviolet disinfection lamp; 14. Bracket; 15. Nano gas disc; 16. Electric heater. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] like Figure 1 As shown, the fry hatching device of the utility model comprises a water circulation unit, a hatching unit and an observation tank.

[0038] Specifically, the water circulation unit includes a water tank 1, a water pump 2, a nano gas disc 15, an electric heater 16, a bracket 14, a filter tank 11, an ultraviolet disinfection lamp 13 and filter cotton 12; the hatching unit includes a hatching bucket 4 and a water inlet pipe 7; the hatching unit and the observation tank are mounted above the water circulation unit. The dotted line in the figure indicates the water level.

[0039] A water pump 2, a nano gas disc 15 and an electric heater 16 are arranged at the bottom of the water tank 1, and the nano gas disc 15 is used to increase the oxygen content in the water; a filter tank 11 is erected above the water tank 1 through a bracket 14, wherein filter cotton 12 and an ultraviolet disinfection lamp 13 are arranged, and the filter cotton 12 is used to filter solids in the water; a through hole is arranged on the bottom surface of the filter tank 11, which is used to discharge the filtered and disinfected water into the water tank 1.

[0040] The observation tank 9 is set above the filter tank 11 for observing the opening of the take-off fry; the observation tank 9 discharges the water above the water inlet of the observation tank overflow pipe 10 into the filter tank 11 through the observation tank overflow pipe 10.

[0041] The bottom of the hatching bucket is hemispherical, and the side wall is provided with scales for observing the height of the fish eggs turning over. The water inlet pipe 7 is vertically fixed and extends into the hatching bucket 4. The water inlet pipe 7 includes an inlet end and an outlet end. The outlet end is 5 to 10 mm away from the bottom of the hatching bucket 4, and the distance is adjusted according to the size and viscosity of the fish eggs. The water inlet pipe 7 is also provided with an air hole 6, and the air hole 6 is ≥10 cm away from the water surface in the hatching bucket 4. The air hole 6 is used to increase the oxygen content of the water body and can also prevent water from flowing back through the water inlet pipe when the water pump is powered off, thereby damaging the fish eggs.

[0042] The water pump 2 introduces water into the water inlet end of the water inlet pipe 7 through the water inlet pipe 3, and a water regulating valve 5 is provided on the water inlet pipe 3 for adjusting the flow of water entering the water inlet pipe 7; the hatching bucket 4 discharges excess water into the observation tank 9 through the incubator drain pipe 8; the observation tank 9 can also be used to protect the fish eggs washed into the observation tank 9 when the water flow rate is too large.

[0043] The following is the working process of the fry hatching device of the utility model:

[0044] Water suitable for the growth of fish eggs is prepared and added to a water tank 1, a heater 16 is started, water is oxygenated through a nano gas disk 15, a water pump 2 is started, and after a hatching bucket 4, an observation tank 9, and a filter tank 11 reach corresponding water levels and start normal circulation, fish eggs are added to the hatching bucket 4, a flow valve 5 on a water diversion pipe 3 is adjusted so that water flows upward to lift the fish eggs, the fish eggs are turned over in the middle and lower part of the hatching bucket 4, the scale on the hatching bucket wall is observed, and it is observed whether there are good eggs in the water discharged from the hatching bucket.

[0045] Adjust valve 5, water flow is preferably not to make the fish eggs in the bucket turn over more than a certain scale; adjust water tank heater 16, make water temperature control at set temperature. After a period of incubation, all fry are hatched.

[0046] The fry of the hatching bucket is poured into the observation tank 9, and the fry is started to be opened for feeding and cultivated, and after the observation fry all takes off and opens, the observation tank fry is imported into the subsequent cultivation stage.

Claims

1. A fry hatching device, characterized in that: It includes a water circulation unit, an incubation unit and an observation tank (9); The hatching unit comprises a hatching bucket (4) and a water inlet pipe (7), wherein the water inlet pipe (7) vertically extends into and is fixed in the hatching bucket (4) and is used to guide water flow to turn over the fish eggs; the top of the water inlet pipe (7) is sealed, and an air hole (6) is provided on the upper part of the water inlet pipe (7); The observation tank (9) is used for feeding and observing the fish eggs after hatching; The water circulation unit receives the water overflowing from the observation tank (9) and delivers the water into the water inlet pipe (7) through the water inlet pipe (3); The incubation unit discharges water above the inlet end of the incubator drain pipe (8) into the observation tank (9) through the incubator drain pipe (8); The incubation unit and the observation tank (9) are mounted above the circulation unit; The bottom of the hatching bucket is hemispherical, and the side wall thereof is provided with scales, and the scales are used to observe the height of the fish eggs turning over.

2. The fry hatching device according to claim 1, characterized in that: The bottom end of the water inlet pipe (7) is 5-10 mm away from the bottom of the hatching bucket.

3. The fry hatching device according to claim 1, characterized in that: The air hole (6) is higher than the water level in the hatching bucket (4) by a distance of ≥10 cm.

4. The fry hatching device according to claim 1, characterized in that: The water diversion pipe (3) is provided with a water flow regulating valve (5), and the water flow regulating valve (5) is used to adjust the flow rate of water in the water diversion pipe (3).

5. The fry hatching device according to claim 1, characterized in that: The water inlet of the incubator drainage pipe (8) is communicated with the upper part of the incubation bucket (4).

6. The fry hatching device according to claim 1, characterized in that: The observation tank (9) is also provided with an observation tank overflow pipe (10), and the observation tank overflow pipe (10) is used to introduce water that is higher than the inlet end of the observation tank overflow pipe (10) into the water circulation unit.

7. The fry hatching device according to claim 1, characterized in that: The water circulation unit comprises a water tank (1), a water pump (2), a nano gas disk (15), an electric heater (16) and a filter tank (11); The filter tank (11) is mounted above the water tank (1), the observation tank (9) is mounted above the filter tank (11), and the water pump (2), the nano gas disk (15) and the electric heater (16) are arranged at the bottom of the water tank (1); The water pump is used to discharge the water in the water tank (1) into the water diversion pipe (3); The nano gas disk (15) is used to increase the oxygen content of the water in the water tank (1).

8. The fry hatching device according to claim 7, characterized in that: The filter tank (11) is provided with an ultraviolet disinfection lamp (13) and filter cotton (12), and a through hole is provided at the bottom of the filter tank (11); the filter tank (11) is used to receive water overflowing from the observation tank (9) and discharge it into the water tank (1) after disinfection and filtration.

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