CN213939365U

CN213939365U - Recovery unit after silvery pomfret fry soil pick-up

Info

Publication number: CN213939365U
Application number: CN202022714830.4U
Authority: CN
Inventors: 王冠林; 王亚军; 胡佳宝; 张曼; 顾玮玮; 孙嘉初; 孙弋博; 杨阳; 张友仪; 李亚亚
Original assignee: Ningbo University
Current assignee: Ningbo University
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-13
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a recovery unit after silvery pomfret fry soil pick-up, include: the seedling collecting net comprises a steel frame, the steel frame is made of hollow stainless steel materials and is of a cylindrical structure consisting of an upper steel ring, a lower steel ring and a middle three steel bars; hooks arranged at two ends of the pull ring can be fixed on the steel frame, so that the fry collecting net can be conveniently lifted up to recover the young fishes. The foam ring has buoyancy, so that the steel frame can rise and float along with the water level when dirt is sucked; the mesh of the mesh bag can be adjusted according to the size of the juvenile fish, the elastic rope is sewn into the opening of the mesh bag, and the mesh bag can be fixed on the stainless steel frame by adjusting the elastic rope. The upper end of the seedling receiving barrel is provided with a small hole, so that water can slowly overflow, the aperture of the small hole can be adjusted along with water flow, and the small hole is separated from the barrel bottom by more than 40cm, so that water stored in the barrel can sink over the seedling collecting net. The utility model discloses work such as convenient soil pick-up, disease control to quick detachable washing, greatly reduced silvery pomfret indoor grow seedlings soil pick-up in-process fish larvae's attrition rate.

Description

Recovery unit after silvery pomfret fry soil pick-up

Technical Field

The utility model relates to a fish culture technical field, concretely relates to recovery unit after silver pomfret fry soil pick-up.

Background

Silvery pomfret is one of the main marine economic fishes in China, has delicious meat quality and higher nutritional value and market demand, but in recent years, due to over-fishing and environmental deterioration, the germplasm resources of wild silvery pomfret in China have obvious signs of decline, so that domestic researchers begin to develop the artificial breeding work of silvery pomfret successively. In the breeding process of pomfret, dead eggs, dead seedlings and residual bait excrement are found to be deposited at the bottom of a breeding pond, water quality is decayed after long-term non-cleaning, growth of the larvae is affected, and therefore a dirt suction device is required to regularly suck dirt at the bottom of the breeding pond. As the pomfret larvae swimming capability is weak, the pomfret larvae are very easy to be sucked out in the dirt sucking process and mixed with sucked-out dirt, if the pomfret larvae are not recovered in time or the recovery method is wrong, the larvae are very easy to be damaged, and the breeding rate of the larvae is greatly reduced. By consulting literatures and actual culture observation, the method for recovering the larvae and the larvae of pomfret after dirt suction is found to be safe and convenient to operate.

Disclosure of Invention

The utility model provides a can high-efficient and convenient silver pomfret fry recovery unit after soil pick-up.

In order to solve the technical problem, the utility model relates to a recovery instrument after silver pomfret juvenile fish soil pick-up, include: the seedling collecting net comprises a steel frame which is made of hollow stainless steel and is of a cylindrical structure consisting of an upper steel ring, a lower steel ring and a middle three steel bars; the pull ring is made of stainless steel, and the hooks arranged at two ends can be fixed on a steel frame, so that the fry collecting net can be lifted conveniently to recover the young fishes. The foam ring is sleeved above the steel frame and has buoyancy force, so that the steel frame can rise and float along with the water level when sewage is sucked; the elastic rope is made of a telescopic material; the net bag is sleeved outside the stainless steel frame, the mesh of the net bag can be adjusted according to the size of the juvenile fish, the elastic rope is sewn into the opening of the net bag, and the net bag can be fixed on the stainless steel frame by adjusting the elastic rope. The seedling receiving barrel is a hollow cylinder with an opening at the upper end and made of plastic, a small sewage discharge hole is formed at the upper end of the seedling receiving barrel, water can slowly overflow, the hole diameter of the small hole can be adjusted along with water flow, and the small hole is separated from the bottom of the barrel by more than 40cm, so that water stored in the barrel can sink over the seedling collecting net.

Preferably, the diameter of the upper steel ring and the lower steel ring of the cylindrical steel frame is 40cm, and the height of the supporting steel bar is 30 cm.

Preferably, the diameter of the foam ring is 40 cm. The thickness was 5 cm.

Preferably, the mesh of the mesh bag has a pore diameter of 0.2cm and a mesh size of 10 to 20 meshes.

Preferably, the diameter of the seedling receiving barrel is 60cm, the height of the seedling receiving barrel is 1.2m, and the aperture of the small hole is 2 cm.

The utility model discloses recovery unit after silvery pomfret fry soil pick-up. The cleaning device is convenient for dirt suction, disease control and other work, is easy to disassemble and clean, and greatly reduces the loss rate of the larvae in the indoor breeding and dirt suction process of the pomfret.

Drawings

Fig. 1 is a schematic structural view of a recovery device after pollution absorption of pomfret fry.

Fig. 2 is a schematic side view of the recovery device after the contamination absorption of the juvenile pomfret.

In the figure: 1-seedling receiving barrel, 1.1-drain hole, 2-steel frame, 2.1-steel ring, 2.2-steel bar, 3-foam ring, 4-mesh bag and 5-pull ring.

Detailed Description

The following describes the recovery device after the pollution absorption of the pomfret fry in detail with reference to the examples.

As shown in figure 1, the utility model relates to a fry recovery device after indoor breeding and dirt absorption of pomfret comprises a fry receiving barrel (1), a stainless steel frame (2), a foam ring (3) and a mesh bag (4) pull ring (5). Firstly, the aperture of the mesh bag (4) is 0.2cm, the mesh is 10-20 meshes, the mesh bag is sleeved on the outer side of the stainless steel frame (2), the elastic rope is adjusted to enable the mesh bag (4) to be fixed on the steel frame (2) and not to fall off, then the pull ring (5) is fixed at the two ends of the steel frame (2) through hooks at the two ends, and then the foam ring is sleeved on the upper portion of the steel frame (2), so that the seedling collecting net is assembled. The assembled seedling collecting net is placed in the seedling collecting barrel, the assembled seedling collecting net is attached to the wall of the seedling collecting barrel as much as possible, the situation that the seedling collecting net moves back and forth to scratch young fishes in the sewage suction process is avoided, and finally, the tail end water outlet of the sewage suction device is directly placed into the seedling collecting net to be used.

As shown in figure 2, the pull ring (5) is fixed at the two ends of the steel frame (2) through the hooks at the two ends, and the assembled seedling collecting net is attached to the wall of the seedling collecting barrel as much as possible, so that the seedling collecting net is prevented from moving back and forth to scratch young fishes in the sewage suction process. The assembled seedling collecting net is put into the seedling receiving barrel (1) for use.

When the device is used, a certain amount of water is put into the seedling receiving barrel (1) firstly, the water in the barrel can be enabled to be over the seedling collecting net, the net bag (4) is sleeved on the steel frame (2) and then the elastic rope is adjusted to be fixed and prevented from falling off, then the pull ring is fixed at two ends of the steel frame (2) through hooks at two ends, and the foam ring (3) is sleeved outside the circular steel ring (2.1) to enable the steel frame (2) to float to form a buffer body to protect the juvenile fish sucked out from being extruded and injured. The assembled seedling collecting net should be attached to the wall of the seedling collecting barrel as much as possible, the seedling collecting net is prevented from moving back and forth to scratch young fishes in the sewage suction process, a water outlet hole of a sewage suction device is placed into the steel frame (2) during use, sewage sucked out can flow away along with water through the gauze net along with sewage suction, and the sucked young fishes can be left in the seedling collecting net, so that the isolation of the young fishes and the sewage is realized. After the sewage suction is finished, the seedling collecting net floats in the seedling receiving barrel, and because the upper end of the seedling receiving barrel is provided with a drain hole (1.1) for draining water and the lower end of the seedling receiving barrel can store water, the sucked young fishes do not leave water in the sewage suction process, thereby realizing the protection of the young fishes. After the sewage suction is finished, the fry receiving net is lifted lightly, and the juvenile fishes are scooped out directly by a ladle and put into an original pool, so that the juvenile fishes can be recovered. After the young fishes are recovered, the seedling net and the seedling collecting barrel are cleaned, so that the breeding of pathogens such as bacteria and the like is avoided. The utility model relates to a fry recovery unit behind pollution absorption of indoor growing seedlings of silvery pomfret, simple structure retrieves the fry of suction after convenient dirt absorption is accomplished to quick detachable washs, greatly reduced the damage rate of disease rate and juvenile fish.

The above examples are merely illustrative of the technical concept and technical features of the present invention, and thus the scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A recovery unit after silvery pomfret fry soil pick-up includes: the seedling collecting net comprises a steel frame (2), pull rings (5), foam rings (3), elastic ropes and a mesh bag (4), and is characterized in that the steel frame (2) consists of an upper steel ring (2.1), a lower steel ring (2.1) and a middle steel bar (2.2), and the steel frame (2) is of a cylindrical structure; the two ends of the pull ring (5) are provided with hooks which can be fixed on the steel frame (2), the foam ring (3) is sleeved above the steel frame (2), the mesh bag (4) is sleeved outside the stainless steel frame (2), and the elastic rope can fix the mesh bag (4) on the stainless steel frame (2); the seedling receiving barrel (1) is a hollow cylinder with an opening at the upper end, and a drain hole (1.1) is formed at the upper end of the seedling receiving barrel (1).

2. The device for recovering the silvery pomfret after fry contamination according to claim 1, wherein the steel frame (2) is made of hollow stainless steel, the pull ring (5) is made of stainless steel, and the fry receiving barrel (1) is made of plastic.

3. The device for recovering the pomfret fry after the dirt absorption according to claim 1, wherein the aperture of the drain hole (1.1) can be adjusted along with water flow, and the small hole is more than 40cm away from the bottom of the barrel, so that the stored water in the barrel can submerge the fry collecting net.

4. The device for recovering the pomfret fry after dirt absorption according to claim 1, wherein the elastic rope is made of a telescopic material.

5. The device for recovering the silvery pomfret fry after dirt absorption as claimed in claim 1, wherein the meshes of the mesh bags (4) can be adjusted according to the sizes of the juvenile pomfret.

6. The device for recovering the silvery pomfret fry after dirt absorption as claimed in claim 1, wherein the diameter of the upper steel ring (2.1) and the lower steel ring (2.1) of the cylindrical steel frame (2) is 40cm, and the height of the supporting steel bar (2.2) is 30 cm.

7. The device for recovering the pomfret fry after dirt absorption according to claim 1, wherein the diameter of the foam ring (3) is 40cm, and the thickness of the foam ring is 5 cm.

8. The device for recovering the pomfret fry after dirt absorption according to claim 1, wherein the mesh of the mesh bag (4) is 0.2cm, and the mesh is 10-20 meshes.

9. The device for recovering the pomfret fry after the contamination absorption according to claim 1, wherein the diameter of the fry receiving barrel (1) is 60cm, the height is 1.2m, and the aperture of the drain hole (1.1) is 2 cm.