Hatching device for spawns of pike vibrio molitor

Abstract

The invention relates to the technical field of fry hatching devices, and particularly discloses a white spot dog fish roe hatching device which comprises a container with a containing cavity formed in the top side, a rotating shaft is installed in the containing cavity, a driving assembly for driving the rotating shaft to rotate is installed on the container, and a coaxial cylindrical shell is installed on the rotating shaft. The hatching device comprises a shell, a plurality of partition plates are installed on the inner wall of the shell around a rotating shaft at equal angles, a water changing hole is formed in one end face of the shell, a filter screen is installed on the water changing hole, a plurality of silk threads are fixed to the inner wall of the shell around the rotating shaft at equal angles, and the silk threads are located between the rotating shaft and the partition plates. Mechanical damage caused by impact of water flow to the eggs of the pike vibrio molitor is avoided, the eggs of the pike vibrio molitor are in full contact with water, and the hatching rate of the eggs of the pike vibrio molitor is increased.

Description

Technical Field

[0001] The invention relates to the technical field of fish fry and fish fingerling propagation, in particular to the technical field of fish fry hatching devices, and specifically to a hatching device for white pike eggs. Background Art

[0002] The northern pike is mainly distributed in the waters of the Arctic Ocean, the Baltic Sea and other parts of North America. In my country, it is only distributed in the Irtysh River and Ulungur River systems in the Altay region. The meat of the northern pike is delicious and rich in nutrients.

[0003] Large-scale hatching of white pike eggs mostly uses hatching rings, which are mainly composed of a ring, filter screens, water inlet and outlet pipes, and a seedling collection pool. The water comes from a water tower or reservoir, and the water in the ring causes the eggs to flip with the water flow. However, the ring hatching pool relies on water circulation in a single direction. The flow rate in the area close to the water inlet is too high, which can easily cause mechanical damage to the eggs, while the eggs in the area far from the water inlet are prone to accumulation, leading to local hypoxia, which can easily cause embryonic development stagnation or deformity. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a hatching device for northern pike eggs, so as to avoid mechanical damage of northern pike eggs caused by water flow impact, make the northern pike eggs fully contact with water, and improve the hatching rate of northern pike eggs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hatching device for white pike eggs, comprising a container with a accommodating cavity on the top side, a rotating shaft installed in the accommodating cavity, a driving assembly for driving the rotating shaft to rotate installed on the container, a coaxial cylindrical shell installed on the rotating shaft, a plurality of partitions installed on the inner wall of the shell at equal angles around the rotating shaft, a water changing hole is opened on one end face of the shell, a filter is installed on the water changing hole, a plurality of silk threads are fixed on the inner wall of the shell at equal angles around the rotating shaft, and the silk threads are located between the rotating shaft and the partition.

[0006] Among them, water is injected into the accommodating cavity of the container and the inner cavity of the shell, there is air in the inner cavity of the shell, and the liquid level of the water in the shell is higher than the rotating shaft and the water changing hole, the de-stained white pike eggs are placed in the shell, and the driving component drives the shell to rotate through the rotating shaft.

[0007] As a preferred technical solution of the present invention, it also includes a first catheter, a second catheter, a third catheter and a fourth catheter, an airbag is arranged in the shell, a hollow rotary joint is installed on the rotating shaft, one end of the first catheter and the inner cavity of the airbag are connected to the third catheter through the hollow rotary joint, one end of the second catheter and the inner cavity of the airbag are connected to the fourth catheter through the hollow rotary joint, and a valve is installed on the second catheter.

[0008] As a preferred technical solution of the present invention, the airbag is an elastic airbag.

[0009] As a preferred technical solution of the present invention, an air stone is installed at one end of the second conduit away from the hollow rotary joint.

[0010] As a preferred technical solution of the present invention, it also includes a toothed disc, a rotating rod is fixed on the partition, an opening is opened in the shell corresponding to the position of the rotating rod, one end of the rotating rod passes through the opening and extends outside the shell, a gear is fixed on the rotating rod, and the gear is meshed with the toothed disc.

[0011] As a preferred technical solution of the present invention, a mounting hole is opened on the outer peripheral side of the shell, and a detachable cover plate is installed on the mounting hole.

[0012] As a preferred technical solution of the present invention, the partition is rotatably connected to the inner wall of the shell, and a connecting rope is connected between any two adjacent partitions.

[0013] As a preferred technical solution of the present invention, the distance between two adjacent silk threads is 1.0-5.0 cm.

[0014] As a preferred technical solution of the present invention, the number of the partitions is not less than five.

[0015] As a preferred technical solution of the present invention, the shell is made of transparent material.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The hatching device for white pike eggs of the present invention, on the one hand, the shell drives the partition to rotate continuously, and the rotating partition drives the white pike eggs to turn over continuously, so as to avoid mechanical damage to the white pike eggs caused by the impact of water flow, and make the white pike eggs fully contact with water, avoid local hypoxia caused by the accumulation of white pike eggs, and improve the hatching rate of white pike eggs; on the other hand, when a part of the white pike eggs are adhered, the adhered white pike eggs are adhered to the silk thread, and the adhered white pike eggs enter the bubbles during the process of the bubbles passing through the silk thread, and the adhered white pike eggs in the bubbles are separated by the silk thread, so as to reduce the influence of the adhesion of the white pike eggs on the hatching rate of the white pike eggs; on the other hand, the air bag that is continuously inflated and deflated generates water flow at the silk thread, so that the white pike eggs moving downward are dispersed, and the water at the filter screen reciprocates and changes direction to realize the exchange of water inside and outside the shell, and avoid the filter screen being blocked by the white pike eggs, and avoid the white pike fry from being attached to the filter screen for a long time, so as to improve the survival rate of the white pike fry.

[0017] 2. In the hatching device for northern pike eggs of the present invention, after the northern pike eggs are hatched into fry, the partition plate is separated from the inner peripheral side of the inner cavity of the shell, so that the staff can pump out or discharge the water in the shell, and the transfer of the northern pike fry in the shell is convenient.

[0018] 3. In the hatching device for northern pike eggs of the present invention, the airbag is made of elastic rubber or elastic silicone material to prevent the northern pike eggs from being damaged by wrinkles caused by shrinkage of the airbag.

[0019] 4. In the hatching device for white pike eggs of the example of the present invention, air at the top of the inner cavity of the shell continuously enters into the water and forms bubbles in the water. During the movement of the bubbles, the bubbles cause the water in the inner cavity of the shell to flow, so that the dissolved oxygen concentration of the water at various locations in the inner cavity of the shell is close. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of one viewing angle of the present invention; Figure 2 It is another perspective structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the housing structure of the present invention; Figure 4 A schematic diagram of a cross-sectional structure of a shell according to an embodiment of the present invention; Figure 5 for Figure 4 Another perspective structural diagram of; Figure 6 It is a schematic diagram of a cross-sectional structure of a shell according to another embodiment of the present invention.

[0021] In the figure: 1 container, 2 shell, 3 hollow rotary joint, 4 drive assembly, 5 shaft, 6 first conduit, 7 valve, 8 second conduit, 9 filter, 10 air bag, 11 third conduit, 12 fourth conduit, 13 partition, 14 silk thread, 15 bubble stone, 16 cover plate, 17 rotating rod, 18 toothed disc, 19 connecting rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: See also Figure 1-4The present embodiment discloses a hatching device for white pike eggs, comprising a container 1 with a accommodating cavity on the top side, a rotating shaft 5 is installed in the accommodating cavity through a bearing, a driving assembly 4 for driving the rotating shaft 5 to rotate is installed on the container 1, a coaxial cylindrical shell 2 is fixedly installed on the rotating shaft 5, a plurality of partitions 13 are installed on the inner wall of the shell 2 at equal angles around the rotating shaft 5, and an edge of the partition 13 is in contact with the inner circumference of the inner cavity of the shell 2, a water exchange hole is opened at a position close to the rotating shaft 5 on one end surface of the shell 2, a filter screen 9 is installed on the water exchange hole, a plurality of silk threads 14 are fixed on the inner wall of the shell 2 at equal angles around the rotating shaft 5, and the silk threads 14 are located between the rotating shaft 5 and the partition 13.

[0024] The driving component 4 is an electric motor or a hydraulic motor. The driving component 4 used in the present invention is a common power device in the prior art. Its working method and structure are well-known technologies and will not be described in detail here.

[0025] The working process and principle of this embodiment are: The staff used decontaminants to decontaminate the northern pike eggs, including but not limited to a mixed solution of yellow mud, talcum powder, raw soy milk, starch, Fuller's earth, protease, tannic acid, urea and sodium chloride.

[0026] The staff injects water into the accommodating cavity of the container 1 and the inner cavity of the shell 2. There is air in the inner cavity of the shell 2, and the water level in the shell 2 is higher than the rotating shaft 5 and the water changing hole. Then the staff puts the destained white pike eggs into the shell 2, and the staff drives the driving component 4 to rotate the shell 2 through the rotating shaft 5.

[0027] The shell 2 drives the partition 13 to rotate continuously, so that the northern pike eggs at the bottom of the inner cavity of the shell 2 rotate with the partition 13. After one of the partitions 13 rotates from the bottom of the inner cavity of the shell 2 to an angle inclined downward, the northern pike eggs on the partition 13 pass through the silk thread 14 and fall to the bottom of the inner cavity of the shell 2. The air at the top of the inner cavity of the shell 2 rotates with the partition 13. After one of the partitions 13 rotates from the top of the inner cavity of the shell 2 to an angle inclined upward, the partition 13 is completely immersed in water, and the air under the partition 13 leaves the partition 13 and forms bubbles. The bubbles pass through the silk thread 14 and move to the top of the inner cavity of the shell 2.

[0028] The shell 2 drives the partition 13 to rotate continuously, and the rotating partition 13 drives the northern pike eggs to turn over continuously, thereby preventing the northern pike eggs from being mechanically damaged by the impact of water flow, and allowing the northern pike eggs to fully contact with water, thereby avoiding local hypoxia caused by the accumulation of northern pike eggs and improving the hatching rate of northern pike eggs.

[0029] When a part of the pike eggs are adhered, the adhered pike eggs are adhered to the silk thread 14, and the adhered pike eggs enter the air bubble when the air bubble passes through the silk thread 14, and the adhered pike eggs in the air bubble are separated by the silk thread 14, thereby reducing the influence of the adhesion of the pike eggs on the hatching rate of the pike eggs.

[0030] Furthermore, the air at the top of the inner cavity of the shell 2 continuously enters the water and forms bubbles in the water. During the movement of the bubbles, the water in the inner cavity of the shell 2 flows, so that the dissolved oxygen concentration of the water at various locations in the inner cavity of the shell 2 is close, and the water inside and outside the shell 2 is exchanged through the filter 9.

[0031] Furthermore, the spacing between two adjacent wires 14 is 1.0cm-5.0cm, the number of partitions 13 is not less than five, the angle between the partition 13 and the tangent of the outer peripheral side of the shell 2 is 50°-90°, and the cross-section of the wire 14 is 0.5mm²-5.0mm².

[0032] Furthermore, the shell 2 is made of a transparent material, which is convenient for the staff to observe the hatching status of the northern pike eggs.

[0033] Furthermore, a water heating device, a sterilizing device and an oxygenating device are installed in the shell 2, and the container 1 is made of masonry, concrete, plastic or metal.

[0034] Furthermore, the shell 2 includes a circular tube body, and detachable end plates are installed at both ends of the circular tube body.

[0035] Embodiment 2: like Figure 3 and Figure 4 As shown, the present embodiment discloses a hatching device for white pike eggs, and its structure is substantially the same as that of the first embodiment, except that the present embodiment further comprises a first conduit 6, a second conduit 8, a third conduit 11 and a fourth conduit 12, an air bag 10 is provided in the shell 2, a hollow rotary joint 3 is installed on the rotating shaft 5, one end of the first conduit 6 and the inner cavity of the air bag 10 are connected to the third conduit 11 through the hollow rotary joint 3, one end of the second conduit 8 and the inner cavity of the air bag 10 are connected to the fourth conduit 12 through the hollow rotary joint 3, and a valve 7 is installed on the second conduit 8.

[0036] The working process and principle of this embodiment are: The staff connects the end of the first conduit 6 away from the hollow rotary joint 3 with the external air pump. The external air pump works to continuously fill the air bag 10 with air. The staff closes the valve 7. The volume of the air bag 10 increases, causing the water in the shell 2 to pass through the filter 9 and flow into the accommodating chamber. Then the staff opens the valve 7. The air in the air bag 10 is discharged through the fourth conduit 12, the hollow rotary joint 3 and the second conduit 8. The volume of the air bag 10 decreases, causing the water in the accommodating chamber to pass through the filter 9 and flow into the shell 2. The staff repeats the above operation.

[0037] The water at the filter screen 9 flows back and forth, which prevents the filter screen 9 from being blocked by the white pike eggs and prevents the white pike fry from being attached to the filter screen 9 for a long time, thereby improving the survival rate of the white pike fry.

[0038] Furthermore, the valve 7 is a solenoid valve commonly used in the prior art that opens and closes at a fixed time.

[0039] Embodiment three: like Figure 4 As shown, this embodiment discloses a hatching device for northern pike eggs, and its structure is substantially the same as that of the second embodiment, except that the airbag 10 of this embodiment is made of elastic rubber or elastic silicone material to prevent the northern pike eggs from being damaged by wrinkles generated when the volume of the airbag 10 is reduced, and the surface of the airbag 10 continuously expands and contracts to prevent the northern pike eggs from adhering to the airbag 10.

[0040] The continuously inflated and deflated air bag 10 generates a water flow at the silk thread 14, so that the northern pike eggs moving downward are dispersed.

[0041] Furthermore, the airbag 10 is fixed on the rotating shaft 5 .

[0042] Embodiment 4: like Figure 4 As shown, this embodiment discloses a hatching device for white pike eggs, and its structure is substantially the same as that of the third embodiment, except that an air stone 15 is installed at one end of the second conduit 8 away from the hollow rotary joint 3 in this embodiment.

[0043] The working process and principle of this embodiment are: As the volume of the airbag 10 decreases, the water in the accommodating chamber passes through the filter 9 and flows into the shell 2. The air in the airbag 10 enters the bubble stone 15 through the fourth conduit 12, the hollow rotary joint 3 and the second conduit 8. The air entering the bubble stone 15 forms bubbles in the accommodating chamber, thereby achieving oxygenation of the water in the accommodating chamber.

[0044] Embodiment five: like Figure 4 and Figure 5As shown, this embodiment discloses a hatching device for white pike eggs, and its structure is substantially the same as that of the first embodiment, except that this embodiment further includes a toothed disc 18, a rotating rod 17 is fixed on the partition 13, an opening is provided at a position of the shell 2 corresponding to the rotating rod 17, one end of the rotating rod 17 passes through the opening and extends outside the shell 2, the rotating rod 17 and the rotating shaft 5 are arranged in parallel, a gear is fixed on the rotating rod 17, and the gear and the toothed disc 18 are meshed.

[0045] The working process and principle of this embodiment are: After the white pike eggs are hatched into fry, the staff rotates the toothed disc 18, and the toothed disc 18 drives the partition 13 to rotate through the gear and the rotating rod 17, so that the partition 13 and the inner circumference of the inner cavity of the shell 2 are out of contact, which is convenient for the staff to draw out or discharge the water in the shell 2, thereby realizing the transfer of the white pike fry in the shell 2.

[0046] Embodiment six: like Figure 1-Figure 6 As shown, this embodiment discloses a hatching device for white pike eggs, and its structure is substantially the same as that of the first embodiment, except that a mounting hole is provided on the outer peripheral side of the shell 2 of this embodiment, and a cover plate 16 is mounted on the mounting hole by bolts or buckles.

[0047] The staff opens the cover plate 16 on the mounting hole, injects water into the shell 2 through the mounting hole, and puts the destained northern pike roe into the shell 2 through the mounting hole, and then installs the cover plate 16 on the mounting hole.

[0048] like Figure 6 As shown, the partition 13 and the inner wall of the shell 2 are connected by hinges or bearings, the rotation axis of the partition 13 is parallel to the rotation axis 5, and a connecting rope 19 is connected between any two adjacent partitions 13. After the northern pike eggs are hatched into fry, the staff opens the cover 16 on the mounting hole, and the staff pushes one of the partitions 13 to rotate. The connecting rope 19 makes all the partitions 13 rotate synchronously, and the inner circumference of the partition 13 and the inner wall of the shell 2 are out of contact. The staff draws out or discharges the water in the shell 2, and the transfer of the northern pike fry in the shell 2 is convenient.

[0049] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A device for incubating northern pike eggs, characterized in that: The invention comprises a container (1) having a receiving cavity provided on the top side, a rotating shaft (5) being installed in the receiving cavity, a driving assembly (4) for driving the rotating shaft (5) to rotate being installed on the container (1), a coaxial cylindrical shell (2) being installed on the rotating shaft (5), a plurality of partitions (13) being installed on the inner wall of the shell (2) at equal angles around the rotating shaft (5), a water exchange hole being opened on one end surface of the shell (2), a filter screen (9) being installed on the water exchange hole, a plurality of silk threads (14) being fixed on the inner wall of the shell (2) at equal angles around the rotating shaft (5), and the silk threads (14) being located between the rotating shaft (5) and the partitions (13); The accommodating cavity of the container (1) and the inner cavity of the shell (2) are both filled with water, air exists in the inner cavity of the shell (2), and the liquid level of the water in the shell (2) is higher than the rotating shaft (5) and the water exchange hole, and the de-stained white pike roe is placed in the shell (2), and the driving component (4) drives the shell (2) to rotate via the rotating shaft (5).

2. The incubation device for northern pike eggs according to claim 1, characterized in that: The invention also comprises a first conduit (6), a second conduit (8), a third conduit (11) and a fourth conduit (12); an air bag (10) is arranged in the housing (2); a hollow rotary joint (3) is mounted on the rotating shaft (5); one end of the first conduit (6) and the inner cavity of the air bag (10) are connected to the third conduit (11) via the hollow rotary joint (3); one end of the second conduit (8) and the inner cavity of the air bag (10) are connected to the fourth conduit (12) via the hollow rotary joint (3); and a valve (7) is mounted on the second conduit (8).

3. The incubation device for northern pike eggs according to claim 2, characterized in that: The airbag (10) is an elastic airbag.

4. The incubation device for northern pike eggs according to claim 3, characterized in that: An air stone (15) is installed at one end of the second conduit (8) away from the hollow rotary joint (3).

5. The incubation device for northern pike eggs according to claim 1, characterized in that: It also comprises a toothed disc (18), a rotating rod (17) being fixed on the partition (13), an opening being provided in the housing (2) at a position corresponding to the rotating rod (17), one end of the rotating rod (17) passing through the opening and extending outside the housing (2), a gear being fixed on the rotating rod (17), and the gear being meshed with the toothed disc (18).

6. The incubation device for northern pike eggs according to claim 1, characterized in that: A mounting hole is provided on the outer peripheral side of the shell (2), and a detachable cover plate (16) is mounted on the mounting hole.

7. The incubation device for northern pike eggs according to claim 6, characterized in that: The partition plate (13) is rotatably connected to the inner wall of the shell (2), and a connecting rope (19) is connected between any two adjacent partition plates (13).

8. The incubation device for northern pike eggs according to claim 1, characterized in that: The distance between two adjacent silk threads (14) is 1.0-5.0 cm.

9. The incubation device for northern pike eggs according to claim 1, characterized in that: The number of the partitions (13) is no less than five.

10. The incubation device for northern pike eggs according to claim 1, characterized in that: The shell (2) is made of transparent material.

Images