Artemia larva collecting device

Abstract

The utility model provides an artemia larva collecting device which is provided with a cylinder body, the cylinder body is used for hatching and collecting artemia, the upper portion of the cylinder body is cylindrical, the cylindrical cylinder body is covered by light-proof materials or light-transmitting materials and black dye, the lower portion of the cylinder body is conical, the upper portion of the cylinder body is provided with a light-shading plate, and the light-shading plate is arranged on the upper portion of the cylinder body. A lamp strip is arranged outside the bottom end of the conical barrel, the conical barrel is made of a light-transmitting material, a discharge pipe is arranged at the lower end of the conical barrel, a first branch and a second branch are arranged on the discharge pipe, the first branch is used for outputting artemia larvae, the second branch is used for discharging artemia shells and dead eggs, a water conveying pipe is arranged on the barrel, and the water conveying pipe is connected with the conical barrel. And the water conveying pipe penetrates through the shading plate. The technical problems that in the existing artemia hatching process, the separation efficiency of dead eggs, artemia shells and live insects is low, and the cost is high are solved. The artemia incubation and collection device can be widely applied to artemia incubation and collection.

Description

Technical Field

[0001] The utility model relates to an aquaculture device, in particular to an artemia larva collection device. Background Art

[0002] With the development of aquaculture, artemia, as an essential bait in the breeding process of aquatic fry, has the problem of low separation efficiency of artemia larvae, artemia shells and dead eggs during its hatching process. When feeding the fry, the fry cannot digest the artemia shells or dead eggs, which will affect the growth of the fry or even lead to the death of the fry. Therefore, although the existing artemia hatching devices can normally hatch artemia eggs, in order to improve the growth quality and survival rate of the cultured fry, more steps are needed to separate dead eggs, artemia shells and live worms in the later stage, which reduces the hatching efficiency and increases the labor cost. Summary of the Invention

[0003] Aiming at the technical problems of low separation efficiency and high cost of dead eggs, artemia shells and live worms in the existing artemia hatching process, the utility model provides an artemia larva collection device with high separation efficiency and low cost, which can automatically separate artemia larvae, artemia shells and dead eggs during the artemia hatching process.

[0004] To this end, the technical solution of the utility model is an artemia larva collection device, which is provided with a cylinder body. The cylinder body is used for hatching and collecting artemia. The upper part of the cylinder body is cylindrical, and the cylindrical cylinder body is made of opaque material or made of transparent material plus black dye to cover it. The lower part of the cylinder body is conical. A light-shielding plate is arranged on the upper part of the cylinder body. An LED strip is arranged outside the bottom end of the conical cylinder body. The conical cylinder body is made of light-transmitting material. A discharge pipe is arranged at the lower end of the conical cylinder body. The discharge pipe is provided with a first branch and a second branch. The first branch is used for outputting artemia larvae, and the second branch is used for discharging artemia shells and dead eggs. A water delivery pipe is arranged on the cylinder body, and the water delivery pipe penetrates through the light-shielding plate.

[0005] Preferably, an electromagnetic valve is arranged on the first branch, and a check valve is arranged on the second branch. The electromagnetic valve is used to automatically control the water level in the cylinder body, and the check valve is used to control the discharge of artemia shells and dead eggs.

[0006] Preferably, the LED strip is detachably fixed on the outer side of the cylinder body.

[0007] Preferably, the LED strip is adhered to the outer wall of the cylinder body, or an annular groove is arranged on the outer wall of the cylinder body, and the LED strip is fixed in the annular groove.

[0008] Preferably, the water outlet end of the water delivery pipe abuts against the inner wall of the cylinder body.

[0009] Preferably, the conical cylinder body is made of fiberglass.

[0010] Preferably, two sets of the artemia larva collection devices are used in series. The first set of the artemia larva collection device discharges artemia larvae into the second set of the artemia larva collection device through the first branch of the discharge pipe.

[0011] The beneficial effect of the present utility model is that in this application, by providing a conical cylinder part made of a light-transmissive material and arranging a light strip outside the conical cylinder, since the hatched live worms have phototaxis, the light strip irradiates light to the lower conical part of the cylinder through the light-transmissive cylinder, and discharges through the first branch of the discharge pipe into the next set of artemia larva collection devices for secondary separation. The light strip in this device is arranged outside the cylinder and does not come into contact with water, which is both safe and reliable and can reduce costs, and can be widely applied to the hatching of artemia. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0013] Symbol description in the figure:

[0014] 1. Cylinder; 1.1. Cylindrical cylinder; 1.2. Conical cylinder; 2. Light-shielding plate; 3. Discharge pipe; 3.1. First branch; 3.2. Second branch; 4. Water delivery pipe; 4.1. Aquaculture water pipe; 4.2. Flushing water pipe; 5. Solenoid valve; 6. Check valve; 7. Light strip. Detailed Embodiments

[0015] The present utility model will be further described below in conjunction with embodiments.

[0016] As Figure 1 shown, an artemia larva collection device is provided with a cylinder 1, where artemia are hatched inside the cylinder 1. Artemia hatch into artemia larvae and produce dead worms and artemia shells. Since the live worms have phototaxis, by setting a light source, the live worms are gathered at the outlet and discharged for collection. In this embodiment, the upper part of the cylinder 1 is a cylindrical cylinder 1.1, and the lower part is a conical cylinder 1.2 that is wide at the top and narrow at the bottom. The conical structure is beneficial for the collection and discharge of artemia. The upper cylindrical part of the cylinder 1 is made of a light-impermeable material or covered with a black dye, and the lower conical part is made of a light-transmissive material, such as fiberglass. A light strip 7 is arranged outside the bottom of the conical cylinder 1.2. The light strip 7, as the light source, passes through the light-transmissive part of the cylinder 1, and the live worms are gathered at the bottom of the conical cylinder under the attraction of the light. The light strip 7 can be directly adhered to the outer wall of the conical cylinder or fixed through an annular groove arranged on the outer wall of the conical cylinder. Without limitation on the fixing form of the light strip as long as the light source can be effectively transmitted.

[0017] At the upper part of the cylinder body 1, there is a light-shielding plate 2. The outer edge of the light-shielding plate 2 is provided with a downward flange, and the inner wall of the flange matches the outer surface of the cylinder body 1. The light-shielding plate 2 is stably placed on the cylinder body 1 through the flange, which can ensure that external light does not enter the cylinder body 1. The cylindrical cylinder body 1.1 is made of light-proof material or covered with black dye, which reduces the requirements for the hatching environment and ensures that the artemia gather towards the bottom of the conical cylinder body 1.2 under the attraction of the light source of the light strip 7, and the collection effect is better guaranteed.

[0018] The lower end of the conical cylinder body 1.2 is connected to a discharge pipe 3. The discharge pipe 3 and the cylinder body 1 can be connected by threads or welded. The discharge pipe 3 is provided with a first branch 3.1 and a second branch 3.2. The first branch 3.1 is used to output artemia larvae, and the second branch 3.2 is used to discharge artemia shells and dead eggs. A water supply pipe 4 is provided on the cylinder body 1, and there is a through hole on the light-shielding plate 2. The water supply pipe 4 extends from the upper part through the through hole of the light-shielding plate 2 to the inner wall of the cylinder body 1. An electromagnetic valve 5 is provided on the first branch 3.1, and a check valve 6 is provided on the second branch 3.2. The electromagnetic valve 5 is used to realize the automatic control of the water level in the cylinder body 1, and the check valve 6 is used to control the discharge of artemia shells and dead eggs. The valve is in a closed state during hatching.

[0019] One end of the water supply pipe 4 is connected to a water source, and the other end branches into a breeding water pipe 4.1 and a flushing water pipe 4.2. Valves are provided on both branches, which can be manual valves or electromagnetic valves. The bottom of the flushing water pipe 4.1 is fixed around the inner wall of the cylinder body. The part of the flushing water pipe 4.1 fixed on the inner wall of the cylinder body is provided with a plurality of flushing holes for flushing the inner wall of the cylinder body after the operation is completed.

[0020] The breeding water pipe 4.1 supplies water source to the cylinder body 1 according to the hatching requirements in the cylinder body 1. The water level height in the cylinder body 1 is controlled by the electromagnetic valve 5 provided on the discharge pipe 3. The electromagnetic valve 5 can automatically control the water level height or can be remotely controlled, with convenient operation and high automation degree.

[0021] The water outlet end of the breeding water pipe 4.1 abuts against the inner wall of the cylinder body 1 at a position slightly below the middle of the cylinder body, which can prevent the impact of the incoming water on the artemia in the cylinder body 1 when the water level is low, ensure a relatively stable environment, and is conducive to the efficient hatching of artemia.

[0022] When in use, two sets of artemia larvae collection devices can be used in series. The first set of artemia larvae collection device discharges artemia larvae into the second set of artemia larvae collection device through the first branch 3.1 of the discharge pipe 3. The installation position of the second set of artemia larvae collection device is lower than the height of the outlet of the first branch 3.1 of the discharge pipe 3 of the first set of artemia larvae collection device, so that the artemia larvae enter the second set of artemia larvae collection device under the action of the height difference for further separation, improving the work efficiency.

[0023] During the hatching process, there will be aeration stones in the cylinder body 1. When separating and collecting, take out the aeration stones and let them stand still for about 30 s. The dead eggs will gather at the bottom of the cylinder body. Drain the dead eggs through the one-way valve 6. After the dead eggs are drained, turn on the light strip and let it stand still for 20 - 30 min. Then open the solenoid valve 5 to let the artemia larvae flow into the next collection device. Close the solenoid valve when the water level reaches the junction of the cone and the circle. Turn on the light strip 7 in the next collection device as well and let it stand still for 10 - 20 minutes. Then open the solenoid valve 5 to collect the artemia larvae. Close the solenoid valve 5 when the water level reaches the junction of the cone and the circle.

[0024] Compared with the traditional method of setting a light source inside the cylinder to attract live worms, this application reduces the requirements for the light source. Since it does not contact water, it does not need to be waterproof, and an ordinary light source can meet the requirements. Moreover, it is installed outside the cylinder body, and the switching operation is more convenient. It only needs to cooperate with the transparent cylinder body to achieve the transmission of the light source. The structure is simple and the cost is low. At the same time, secondary separation is adopted, which improves the work efficiency and reduces the work intensity of the breeding personnel. It can be widely applied to the hatching and collection of artemia.

[0025] However, the above are only specific embodiments of the present utility model, and the scope of implementation of the present utility model cannot be limited thereby. Therefore, the replacement of equivalent components or the equivalent changes and modifications made according to the scope of protection of the present utility model patent should still fall within the scope covered by the claims of the present utility model.

Claims

1. A device for collecting Artemia larvae, comprising a cylinder, characterized in that: The cylinder is used for hatching and collecting Artemia. The upper part of the cylinder is a cylindrical cylinder, and the cylindrical cylinder is made of opaque material or translucent material covered with black dye. The lower part of the cylinder is conical, and a shading plate is provided on the upper part of the cylinder. A light strip is provided on the outside of the bottom end of the conical cylinder. The conical cylinder is made of translucent material, and a discharge pipe is provided at the lower end of the conical cylinder. A first branch and a second branch are provided on the discharge pipe, and the first branch is used to discharge Artemia larvae, and the second branch is used to discharge Artemia shells and dead eggs. A water pipe is provided on the cylinder, and the water pipe passes through the shading plate.

2. The Artemia larvae collecting device according to claim 1, characterized in that: The first branch is provided with a solenoid valve, and the second branch is provided with a one-way valve. The solenoid valve is used to realize automatic control of the water level in the cylinder, and the one-way valve is used to control the discharge of Artemia shells and dead eggs.

3. The Artemia larvae collecting device according to claim 1, characterized in that: The light strip is detachably fixed on the outside of the cylinder.

4. The Artemia larvae collecting device according to claim 3, characterized in that: The light strip is adhered to the outer wall of the cylinder, or an annular groove is provided on the outer wall of the cylinder, and the light strip is fixed in the annular groove.

5. The Artemia larvae collecting device according to claim 1, characterized in that: The water outlet end of the water delivery pipe is close to the inner wall of the cylinder.

6. The Artemia larvae collecting device according to claim 1, characterized in that: The conical cylinder is made of glass fiber reinforced plastic.

7. The Artemia larvae collecting device according to claim 1, characterized in that: The two Artemia larvae collecting devices are used in series, and the first Artemia larvae collecting device discharges Artemia larvae into the second Artemia larvae collecting device through the first branch of the discharge pipe.

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