A small mandarin fish fertilized egg circulating water hatching device

Abstract

The utility model discloses a small mandarin fish fertilized egg circulating water hatching device, it includes hatching bucket, filter equipment and water pump, the bottom of hatching bucket is located in water inlet, is equipped with bottom isolation net at water inlet, the top of hatching bucket is open, is equipped with a circle of inside top isolation net and a circle of outside backflow eaves along the edge in the top of hatching bucket, and top isolation net stretches out upward, is higher than the upper end surface of hatching bucket, and backflow eaves includes the inclined portion extending to the outside oblique downward and the water collecting tank located in the lower side of inclined portion, the bottom surface of water collecting tank is equipped with backflow pipe, and the output end of backflow pipe is butt -joint with the input end of filter equipment, and the water after being filtered by filter equipment is sent back to hatching bucket through water inlet by water pump. The utility model discloses better reduced the risk of escaping egg, and simple structure, low in cost, can better realize miniaturization, and it is convenient for promoting.

Description

Technical Field

[0001] This utility model belongs to the technical field of aquaculture equipment, specifically relating to a small-scale recirculating water incubation device for mandarin fish fertilized eggs. Background Technology

[0002] Mandarin fish is an important and valuable economic fish in my country. Its fertilized eggs are non-adhesive and semi-buoyant, and will float with the water in flowing water environments.

[0003] Traditional methods for hatching mandarin fish typically employ either still-water aeration or flowing-water hatching tanks. Still-water hatching requires frequent water changes, is labor-intensive, and is prone to embryo mortality due to water quality fluctuations. While large flowing-water hatching tanks offer stable water quality, they require significant land area, high equipment investment, and substantial water consumption. Neither of these methods is suitable for small-scale applications.

[0004] Currently, the most common small-scale mandarin fish hatching device is the "hatching bucket," which has a simple structure. During use, water is continuously supplied through an inlet pipe, causing the water inside the bucket to continuously overflow from the top opening, forming a circulation. To prevent the fertilized mandarin fish eggs from escaping, existing hatching buckets have a screen directly covering the opening.

[0005] The existing hatching tanks mentioned above are simply covered with a screen, making it easy for mandarin fish fertilized eggs (approximately 1.1-1.37 mm in diameter) to overflow from the tank opening when the water flow is large, resulting in a loss of hatching rate. In addition, existing hatching tanks are usually equipped with a bulky filtration system, which is costly, cumbersome, and inconvenient to move and operate. Utility Model Content

[0006] The purpose of this invention is to provide a small-scale circulating water incubation device for mandarin fish fertilized eggs.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A small-scale recirculating water incubation device for mandarin fish fertilized eggs is characterized by comprising an incubation tank, a filter device, and a water pump. The bottom of the incubation tank is located at the water inlet, and a bottom isolation net is provided at the water inlet. The top of the incubation tank is open, and a top isolation net located on the inner side and a return eave located on the outer side are provided along the top edge of the incubation tank. The top isolation net extends upward and is higher than the upper end surface of the incubation tank. The return eave includes an inclined part extending obliquely downward and outward and a water collection trough located below the inclined part. A return pipe is provided on the bottom surface of the water collection trough, and the output end of the return pipe is connected to the input end of the filter device. The water filtered by the filter device is sent back to the incubation tank through the water pump via the water inlet.

[0009] A further technical solution of this utility model is as follows: the incubation device includes a water pump box, the water pump is installed in the water pump box, the output end of the water pump is connected to the water inlet of the incubation bucket through a connecting pipe, the filtration device includes one or more filter boxes stacked on top of the water pump box, the filter boxes are provided with filter layers, the height of the uppermost filter box is lower than the water collection tank, and the output end of the return pipe extends into the uppermost filter box.

[0010] A further technical solution of this utility model is: the top of the filter box is open, and a mesh plate is provided at the bottom.

[0011] A further technical solution of this utility model is: the bottom of the incubation bucket is conical, and the water inlet is located in the middle of the bottom of the incubation bucket.

[0012] A further technical solution of this utility model is: the lower edge of the top isolation net is attached to and fixedly connected to the top inner wall of the incubation bucket.

[0013] A further technical solution of this utility model is: the incubation device also includes a support frame, and the incubation bucket is fixedly mounted on the support frame.

[0014] A further technical solution of this utility model is: an inlet control valve is provided at the water inlet of the incubation tank, and a return control valve is provided on the return pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model has a top isolation net that extends upwards from the top of the hatching tank. The top isolation net is higher than the top surface of the hatching tank. During use, even if there are large fluctuations in the water inside the hatching tank, it can still prevent the mandarin fish fertilized eggs from passing through, thereby better reducing the risk of egg escape.

[0017] 2. The water surface of the incubation bucket of this utility model is no longer covered. Workers can easily remove pollutants floating on the water surface through the opening at the top of the incubation bucket. Moreover, the pollutants on the water surface can be better discharged with the water flow over the upper edge of the incubation bucket. It can be seen that this utility model can better improve the water quality during use.

[0018] 3. The present invention has a simple overall structure, low cost, and can be better miniaturized, making it easy to promote.

[0019] 4. This utility model further features a water pump box and a filter box assembled in a stacked manner, which has a compact structure and is convenient to move and assemble. Attached Figure Description

[0020] Figure 1 This is a front view schematic diagram of the circulating water incubation device for small mandarin fish fertilized eggs according to an embodiment of the present invention;

[0021] Figure 2This is a three-dimensional structural diagram of the incubation bucket according to an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of a small mandarin fish fertilized egg circulating water incubation device according to an embodiment of the present invention.

[0023] Meaning of the labels in the attached diagram:

[0024] 1- Hatching bucket; 1.1- Conical bottom; 1.2- Water inlet; 2- Top isolation net; 3- Return eaves; 3.1- Inclined section; 3.2- Water collection trough; 3.3- Return port; 4- Support frame; 5- Filter box; 5.1- Limiting ring; 5.2- Mesh plate; 6- Pump box; 7- Connecting pipe; 8- Inlet control valve; 9- Return pipe; 10- Return control valve; 11- Pump; 12- Filter layer; 13- Bottom isolation net. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example:

[0027] like Figures 1 to 3 The image shows a small-scale recirculating water incubation device for mandarin fish fertilized eggs according to this embodiment, which includes an incubation tank 1, a support frame 4, a filter device, a water pump box 6, and a water pump 11.

[0028] The hatching bucket 1 is fixedly mounted on a support frame 4. The support frame 4 adopts a conventional structure, allowing the hatching bucket 1 to be lifted off the ground. In this embodiment, the hatching bucket 1 is a circular bucket with a conical bottom. The conical bottom 1.1 has a larger diameter at the top and a smaller diameter at the bottom. A water inlet 1.2 is located in the middle of the bottom of the hatching bucket 1. A water inlet control valve 8 is installed at the water inlet 1.2. A bottom isolation net 13 is installed at the upper end of the water inlet 1.2, which completely covers the upper end of the water inlet 1.2, preventing the mandarin fish fertilized eggs from escaping from the bottom. In use, water flows upward into the hatching bucket 1 from the bottom water inlet 1.2. The water inlet control valve 8 can control the flow of water into the hatching bucket 1. Under the action of the upward water flow, the mandarin fish fertilized eggs in the hatching bucket 1 will be suspended inside the hatching bucket 1.

[0029] The hatching container 1 has an opening at the top. A top isolation net 2 is installed along the inner edge of the top edge of the hatching container 1. The lower edge of the top isolation net 2 is flush with the inner top wall of the hatching container 1 and fixed in a conventional manner. For example, when both the hatching container 1 and the top isolation net 2 are made of metal, they can be fixed by welding; when they are made of plastic, they can be fixed by adhesive. The top isolation net 2 extends upwards, above the upper surface of the hatching container 1. The top isolation net 2 is high enough that even if the water in the hatching container 1 experiences significant fluctuations, the water level will not overflow above the top isolation net 2. In this embodiment, the top isolation net 2 is specifically 3-5 cm above the upper surface of the hatching container 1.

[0030] Of course, the mesh size of the bottom isolation net 13 and the top isolation net 2 should be small enough to be smaller than the fertilized mandarin fish eggs, so as to block the fertilized mandarin fish eggs inside. In this embodiment, an isolation net with a mesh size of 60-80 mesh is used, and the mesh size is much smaller than the diameter of the fertilized mandarin fish eggs (about 1.1-1.37 mm).

[0031] A reflux eave 3 is provided around the top edge of the incubation tank 1. The reflux eave 3 includes an inclined portion 3.1 extending diagonally downwards and outwards, and a water collection trough 3.2 located below the inclined portion 3.1. In this embodiment, the reflux eave 3 is integral with the body of the incubation tank 1. In this embodiment, a reflux port 3.3 is provided on the bottom surface of the water collection trough 3.2, and a reflux pipe 9 is connected to the reflux port 3.3. A reflux control valve 10 is provided on the reflux pipe 9. In use, water overflowing from the top of the incubation tank 1 will flow downwards along the inclined portion 3.1 into the water collection trough 3.2, be collected by the water collection trough 3.2, and then flow into the reflux pipe 9 from the reflux port 3.3.

[0032] In this embodiment, a conventional water pump is used. The water pump 11 is placed inside the water pump box 6, and the output end of the water pump 11 extends out of the water pump box 6 and is connected to the water inlet 1.2 of the incubation tank 1 through the connecting pipe 7.

[0033] The filtration device in this embodiment includes three filter boxes 5, which are stacked sequentially on top of a water pump box 6. The specific structure of the stacked filter boxes 5 is as follows: the water pump box 6 and the filter boxes 5 have the same horizontal cross-sectional dimensions, specifically a square cross-section. Both the water pump box 6 and the filter boxes 5 have openings at their top ends. A downwardly protruding limiting ring 5.1 is provided at the lower edge of each filter box 5. When stacked, the limiting ring 5.1 engages with the inner side of the upper opening of the lower box. In another embodiment, other conventional stacking structures can also be used. After stacking, screw connections can be added for further fixation. The number of filter boxes 5 can be adjusted according to filtration requirements.

[0034] A filter layer 12 is installed inside the filter box 5. The filter layer 12 can use filter cotton, bio-balls, bacterial balls, or other filter media, which can be selected according to needs. A combination of physical and biological filtration can be performed. The purified water will be collected in the bottom water pump box 6 to complete a cycle. At the bottom of the filter box 5 is a perforated plate 5.2, which has several holes for water to flow through.

[0035] The height of the uppermost filter box 5 is lower than that of the water collection tank 3. The output end of the return pipe 9 extends downward into the uppermost filter box 5. The water flowing out from the return pipe 9 will fall into the uppermost filter box 5 and then be filtered downwards under the action of gravity.

[0036] The usage process of the small mandarin fish fertilized egg circulating water incubation device in this embodiment is as follows:

[0037] The hatching tank 1 is filled with water for hatching. The fertilized mandarin fish eggs will hatch in the water inside the hatching tank 1. The hatching tank 1 is blocked by the bottom isolation net 13 and the top isolation net 2. During operation, water flows upward from the water inlet 1.2 at the bottom of the hatching tank 1, causing the fertilized mandarin fish eggs in the hatching tank 1 to float. Water also continuously overflows from the top of the hatching tank 1. The overflowing water will flow down the inclined part 3.1 into the water collection tank 3.2. After being collected in the water collection tank 3.2, it flows into the return pipe 9 from the return port 3.3. Through the return pipe 9, it flows to the uppermost filter box 5, and then flows down layer by layer. It is filtered by the filter layer 12 and finally falls into the water pump box 6. The water pump 11 sends it back to the hatching tank 1 through the water inlet 1.2 to form a cycle.

[0038] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A small-scale recirculating water incubation device for fertilized mandarin fish eggs, characterized in that: The device includes an incubation tank, a filter, and a water pump. The bottom of the incubation tank has a water inlet, and a bottom isolation net is provided at the water inlet. The top of the incubation tank is open, and a top isolation net and a return flow eave are provided along the edge of the top of the incubation tank. The top isolation net extends upward and is higher than the upper surface of the incubation tank. The return flow eave includes an inclined part extending outward and downward and a water collection trough located below the inclined part. The bottom surface of the water collection trough is provided with a return pipe, and the output end of the return pipe is connected to the input end of the filter. The water filtered by the filter is pumped back to the incubation tank through the water inlet.

2. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 1, characterized in that: The incubation device includes a water pump box, the water pump is located inside the water pump box, the output end of the water pump is connected to the water inlet of the incubation tank through a connecting pipe, the filtration device includes one or more filter boxes stacked on the water pump box, the filter boxes are provided with filter layers, the height of the uppermost filter box is lower than the water collection tank, and the output end of the return pipe extends into the uppermost filter box.

3. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 2, characterized in that: The filter box has an opening at the top and a perforated plate at the bottom.

4. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 1, characterized in that: The bottom of the incubation bucket is conical, and the water inlet is located in the middle of the bottom of the incubation bucket.

5. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 1, characterized in that: The lower edge of the top isolation net is attached to and fixedly connected to the top inner wall of the incubation bucket.

6. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 1, characterized in that: The incubation device also includes a support frame, and the incubation bucket is fixedly mounted on the support frame.

7. The small-scale mandarin fish fertilized egg circulating water incubation device according to claim 1, characterized in that: The incubation tank is equipped with an inlet water control valve, and the return pipe is equipped with a return flow control valve.

Images