Fry breeding device

Abstract

The utility model discloses a fry breeding device, which relates to the technical field of fry breeding and comprises a breeding pond, a blow-off pipe is arranged on the pond wall of the breeding pond close to the pond bottom of the breeding pond, an oxygen supply device is mounted on the pond wall in the breeding pond, a structure capable of gathering fry is arranged in the breeding pond, and the structure capable of gathering the fry comprises a center rod. The center rod is vertically fixed to the center of the bottom in the culture pond, a fixed plate and a movable plate are arranged in the culture pond, the width of the fixed plate and the width of the movable plate are matched with the distance between the culture pond and the center rod, the lower ends of the fixed plate and the movable plate abut against the bottom in the culture pond, and the fixed plate is fixed to the center rod and the wall of the culture pond. The moving plate is mounted at the upper end of the center rod. In hot summer, the movable plate can be pushed to rotate, fries are pushed and gathered together, ice blocks are put into the culture pond, water can be cooled, physiological metabolism of the fries is guaranteed, the survival rate of the fries is guaranteed, and economic losses are avoided.

Description

Technical Field

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

[0002] In the existing technology, seedling breeding and aquaculture devices are equipment manufactured by many companies. A search revealed that, for example, Chinese patent (application number: 202420433172.7) is a special breeding pond for grouper fry. Through the cooperation between various structures, it realizes the function of improving feed utilization and solves the problem of uneven feed distribution. This achieves uniform feed distribution inside the breeding pond, ensuring that a large number of fry compete for food, which would cause some fry to receive less food, resulting in poor fry development. At the same time, it reduces the labor intensity of artificial feeding.

[0003] However, if fish fry are raised in the hot summer, the water temperature will be very high. Excessively high water temperature will affect the physiological metabolism of the fish fry, resulting in a very low survival rate. Therefore, it is necessary to design a device that can gather the fish fry together and then add ice blocks to the water to cool it down in order to ensure the growth of the fish fry. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a fish fry breeding device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fish fry rearing device includes a circular rearing pond. A drain pipe with a control valve is connected to the pond wall near its bottom. An oxygenator is installed on the pond wall. The rearing pond contains a structure for gathering fish fry. This structure includes a central rod, which is vertically fixed at the center of the pond bottom. The rearing pond also includes a fixed plate and a movable plate. The widths of both the fixed and movable plates match the distance between the rearing pond and the central rod, and their lower ends rest against the pond bottom. The fixed plate is fixed to the central rod and the pond wall, while the movable plate is installed on the upper end of the central rod.

[0007] Compared with the prior art, this utility model has the following advantages: In the hot summer, the moving plate can be rotated to push the fish fry together. Ice blocks can be added to the breeding pond to cool the water, ensure the physiological metabolism of the fish fry, and thus ensure the survival rate of the fish fry and avoid economic losses. Attached Figure Description

[0008] Figure 1 The three-dimensional representation of this utility model Figure 1 ;

[0009] Figure 2 The three-dimensional representation of this utility model Figure 2 ;

[0010] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0011] Figure 4 This is a partial exploded view of the present invention;

[0012] Figure 5 This utility model is in working condition. Figure 1 ;

[0013] Figure 6 This utility model is in working condition. Figure 2 .

[0014] Attached diagram labels: 1. Aquaculture pond; 2. Sewage pipe; 3. Aerator; 4. Center rod; 5. Fixing plate; 6. Moving plate; 6-1. Water hole; 7. Stud; 8. Connecting block; 9. Ring; 10. Nut; X. Fish fry. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] like Figure 1-2 As shown, this utility model provides a fish fry breeding device, including a circular breeding pond 1. A drain pipe 2 with a control valve is installed on the pond wall near the bottom of the breeding pond 1. When water needs to be changed, the control valve can be opened directly to discharge wastewater from the drain pipe 2. The control valve is existing technology and can be a manual valve or an electric valve. An oxygenator 3 is installed on the pond wall inside the breeding pond 1. The principle of the oxygenator 3 is existing technology and will not be described in detail in this utility model. A structure capable of gathering fish fry is provided inside the breeding pond 1. The structure capable of gathering fish fry includes a central rod 4, which is vertically fixed at the center of the bottom of the breeding pond 1. A fixed plate 5 and a movable plate 6 are provided inside the breeding pond 1. The width of the fixed plate 5 and the movable plate 6 are matched with the distance between the breeding pond 1 and the central rod 4, and their lower ends abut against the bottom of the breeding pond 1. The fixed plate 5 is fixed to the central rod 4 and the pond wall of the breeding pond 1, and the movable plate 6 is installed on the upper end of the central rod 4.

[0017] like Figure 3-4 As shown, in order to achieve the rotation and locking of the movable plate 6, a stud 7 is vertically fixed at the center of the upper end of the central rod 4. A ring 9 is fixed at the corner of the top of the movable plate 6 through a connecting block 8. The ring 9 is mounted on the stud 7. A nut 10 is also threadedly installed on the stud 7. The bottom of the nut 10 is pressed against the top of the ring 9.

[0018] like Figure 4 As shown, in order to prevent the moving plate 6 from moving too fast and causing the water in the breeding pond 1 to be pushed out, the moving plate 6 has several water holes 6-1 arranged at equal intervals near its top.

[0019] like Figure 2 As shown, when the weather is hot, after the fish fry X gather, in order to better supply oxygen to the fish fry X, the oxygenator 3 is installed near the bottom of its breeding pond 1 and near the fixed plate 5.

[0020] Below, according to Figure 5-6 The working principle of this utility model is explained in detail as follows: Before operation, the fixed plate 5 and the movable plate 6 are close to each other, with a very small included angle, such as... Figure 5 As shown, if the angle is considered wasteful of space in the aquaculture pond 1, the fixed plate 5 and the movable plate 6 can be made thinner, and the central rod 4 can be made thicker. This allows the fixed plate 5 and the movable plate 6 to be very close together with a small angle. Fish fry X can then be introduced into the aquaculture pond 1. Figure 5 In this way, the fish fry X are released outside the acute angle between the fixed plate 5 and the movable plate 6. In the hot summer, the nut 10 can be turned upwards, and the nut 10 moves upwards along the stud 7, no longer pressing against the ring 9. In this way, the ring 9 can rotate around the stud 7, driving the movable plate 6 to rotate, until the movable plate 6 rotates to the position shown in the image. Figure 6 As shown, during the rotation process, the fish fry X are driven to gather together, reducing their activity space. Then, ice blocks are thrown into the water containing the fish fry X to lower the water temperature in the area where the fish fry X are active. Combined with the oxygenator 3, the survival rate of the fish fry X is guaranteed. In addition to being suitable for raising fish fry X in the hot summer, this invention also reduces the activity space of the fish fry X by following the above operation, making it easier for workers to collect the fish fry X and improving its practicality.

[0021] Finally, the most significant contribution of this invention is that in the hot summer, the movable plate 6 can be rotated to push the fish fry X together, and ice blocks can be added to the breeding pond 1 to cool the water, ensure the physiological metabolism of the fish fry X, and thus ensure the survival rate of the fish fry X and avoid economic losses.

[0022] 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 rearing device, comprising a circular rearing pond, a drain pipe with a control valve connected to the pond wall near the bottom, and an oxygenator installed on the pond wall, characterized in that: The breeding pond is provided with a structure capable of gathering fry.

2. A fish larvae rearing device according to claim 1, characterized in that: The structure capable of gathering fry comprises a center rod vertically fixed at the center of the bottom of the breeding pond, a fixed plate and a moving plate, the width of the fixed plate and the moving plate matches the distance between the breeding pond and the center rod, and the lower end of the fixed plate and the moving plate abuts against the bottom of the breeding pond, the fixed plate is fixed on the wall of the breeding pond and the center rod, and the moving plate is installed on the upper end of the center rod.

3. A fish larvae rearing device according to claim 2, wherein: A stud is vertically fixed at the center of the upper end of the center rod, a circular ring is fixed on the corner of the top of the moving plate through a connecting block, the circular ring is to be installed on the stud, and a nut is threadedly installed on the stud, and the bottom of the nut abuts against the top of the circular ring.

4. A fish larvae rearing device according to claim 3, wherein: A plurality of water holes are arranged at equal intervals on the moving plate close to the top of the moving plate.

5. A fish larvae rearing device according to claim 4, wherein: The oxygen supplier is installed close to the bottom of the breeding pond and close to the fixed plate.

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