Fry domestication and cultivation device

Abstract

The invention discloses a fry domestication and cultivation device, and relates to the technical field of aquaculture equipment. The device comprises a fishpond groove, a support structure, a detachable net cage structure, a feeding structure and a shielding structure, a V-shaped sewage collecting structure composed of a slope boss is arranged at the bottom of the fishpond groove, and residual feed and excrement are discharged in a concentrated mode in cooperation with a sewage pump; an aerator is arranged in the sewage collection area to improve the dissolved oxygen level of bottom water; the inner wall of the tank is provided with a flushing nozzle capable of adjusting the spraying direction and flow and used for simulating a natural water flow environment; the top shielding structure can be adjusted in a sliding mode and is matched with the spotlight to achieve illumination control. The device is reasonable in structure, high in function integration level, capable of effectively improving the water quality environment, reducing the fry stress response and improving the feeding domestication success rate and survival rate and suitable for multi-stage fry domestication and cultivation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aquaculture equipment, in particular to a fish fry domestication and cultivation device. BACKGROUND

[0002] Early domestication and cultivation of fish fry is a key link in the success of aquaculture, directly affecting the survival rate, growth rate and economic benefits of later cultivation. However, the traditional fish fry cultivation mode has many bottlenecks: the necessity of domestication: many high economic value carnivorous fish, such as sea bass, mandarin fish and sturgeon, usually feed on live bait (such as water fleas, rotifers and brine shrimp) during the fry stage. To successfully convert to artificial feed (puffed granules or soft granules), a difficult and critical "feeding" process is required. This process requires precise control of feeding frequency, bait form, water flow stimulation and water quality environment to induce fish fry to feed and adapt to new bait. The traditional pond or net cage domestication method is rough, with low and unstable domestication success rate, resulting in huge loss of fish fry.

[0003] The necessity of marking and cultivation: even for fish that do not need to be domesticated, a "marking" or "large-scale cultivation" stage is needed. That is, the small fry hatched in a controllable environment is cultivated into large-sized fish seed with strong body and uniform size, and then put into the fish cultivation pond, which can significantly improve its adaptability to the large pond environment and disease resistance, and reduce the risk of fish cultivation period.

[0004] Defects of prior art:

[0005] Uncontrollable environment: traditional cement ponds or earth ponds are difficult to accurately control water flow, light, water quality, etc., with large environmental fluctuations and many stressors, which is not conducive to the growth and domestication of fish fry.

[0006] Dependence on manual management: feeding, sewage, oxygenation and other operations are highly dependent on manual experience, with high labor intensity, low efficiency, and inability to achieve precise and timely management. For example, residual feed and feces cannot be removed in time, which will quickly deteriorate the water quality and cause diseases.

[0007] Single function of facilities: existing fish breeding facilities usually have scattered functions and lack integration. Feeding machines, oxygenators, sewage suction equipment, etc. are independent of each other and cannot form a system that works together, making it difficult to achieve efficient automated management.

[0008] Lack of adaptability: fixed structure net cages or cultivation ponds cannot flexibly adapt to the changing needs of different types and growth stages of fish fry in terms of space density, mesh size and water depth.

[0009] Therefore, there is an urgent need in the art for a special device that can provide a stable and controllable environment for fish fry, integrate key cultivation operations, achieve automated and intelligent management, and be flexible to adapt to different domestication and cultivation needs. SUMMARY

[0010] (I) Technical problems solved

[0011] In view of the deficiencies in the prior art, the present application provides a fish fry domestication and cultivation device, which solves the problems that the key parameters such as water flow, illumination, and water quality are difficult to accurately adjust, the environment fluctuates greatly, the fish fry is prone to stress reaction, and the success rate of domestication is low. Residual feed and feces are prone to accumulate at the bottom of the pool or the net cage, and manual cleaning is inefficient, which can easily cause water quality deterioration and induce diseases. The functions of feeding, oxygenation, and sewage discharge are usually independently set, and lack of system linkage, and the management highly depends on manual experience. The existing cultivation facilities cannot flexibly adjust the space density, mesh size, and cultivation conditions according to different growth stages of the fish fry.

[0012] (II) Technical solutions

[0013] To achieve the above object, the present application is implemented by the following technical solutions: A fish fry domestication and cultivation device, comprising a fish tank, a support structure arranged inside the fish tank, a net cage structure detachably connected with the support structure, a feeding structure arranged outside the fish tank, and a shielding structure arranged at the top of the fish tank. The fish tank is in the shape of a rectangular cuboid with an open top. A sewage collection and treatment structure is arranged at the inner bottom of the fish tank. The sewage collection and treatment structure comprises two inclined bosses, and the slope between the bosses forms a V-shaped cavity. Two sewage pumps are arranged at the middle of the bottom of the V-shaped cavity. The output port of the sewage pump is connected with a sewage discharge pipe, which extends to the outside of the fish tank.

[0014] As a further preferred mode of the present application, an oxygenation machine is arranged near the side surface of the sewage pump. An oxygen tank is connected to the outside of the oxygenation machine. An exhaust pipe is connected to the output end of the oxygenation machine, and a plurality of infiltration holes are arranged on the exhaust pipe.

[0015] As a further preferred mode of the present application, a water flushing pump is arranged on the inner walls of the front and rear of the fish tank. A water jet pipe is connected to the output end of the water flushing pump, and a plurality of water flushing nozzles are arranged on the water jet pipe. The water flushing nozzles are arranged in multiple groups at intervals, and the jet direction and jet flow rate are adjustable, which are used to simulate the natural water flow environment.

[0016] As a further preferred mode of the present application, the shielding structure comprises two buckling plates, which are symmetrically distributed in the middle of the front and rear outer walls of the fish tank. Two vertical rods are vertically connected to the top of the buckling plates, and horizontal guide plates are connected to the top of the vertical rods. Slotted grooves are formed in the guide plates, and a shielding plate is slidably connected to the guide plates. A plurality of spotlights are arranged at the bottom of the shielding plate.

[0017] As a further preferred mode of the present application, the support structure comprises two groups of two horizontal rods arranged vertically, a telescopic rod one is arranged between the upper and lower sides of the two horizontal rods, and a telescopic rod two is arranged between the left and right sides of the two horizontal rods, the four horizontal rods, the four telescopic rod ones and the four telescopic rod twos integrally form a cuboid frame structure, and the two sides of the horizontal rod at the bottom are symmetrically provided with plug rods which are inserted and fixed with the top of the boss.

[0018] As a further preferred mode of the present application, the net cage structure comprises a top cover plate, a suspension rod is arranged at the top of the top cover plate, a plurality of stop rods are arranged at the bottom of the top cover plate, a buckle ring is connected to the bottom of the plurality of stop rods, and a net belt is arranged in the gap between the stop rods and in the middle of the buckle ring.

[0019] As a further preferred mode of the present application, the feeding structure comprises a load-bearing plate, a moving wheel is arranged at the bottom of the load-bearing plate, an L-shaped rod is connected to the top of the load-bearing plate, a support rod is connected to the inner end of the L-shaped rod, a clasp ring is connected to the inner end of the support rod, a feeding tank is arranged in the inside of the clasp ring, a discharge port is arranged at the bottom of the feeding tank, and the feeding tank is quantitatively and timely fed.

[0020] As a further preferred mode of the present application, the net cage structure comprises a long strip-shaped enclosing frame, a pocket net is arranged at the bottom of the enclosing frame, and a plurality of hooks are arranged at the top of the enclosing frame.

[0021] (Three) beneficial effects

[0022] The present application provides a fish fry domestication and cultivation device.

[0023] The present application sets a V-shaped pollution collection cavity structure formed by two inclined bosses at the bottom of the fish tank, and the residual feed, feces and suspended impurities are automatically collected at the bottom of the cavity under the action of water flow and gravity, and are timely pumped and discharged by the double sewage pump, so as to effectively avoid the retention of pollutants at the bottom of the tank, significantly reduce the accumulation risk of ammonia nitrogen and nitrite in the water body, and improve the stability of the water body. The oxygenation machine is arranged near the pollution collection area, the exhaust pipe is uniformly distributed with multiple holes, the bottom water body is continuously supplemented with oxygen, the anoxic problem at the bottom is avoided, and the pollution collection and discharge system forms a synergistic effect, so as to provide a stable and uniform oxygen environment for the fry, significantly reduce the stress reaction, and improve the survival rate during the domestication period.

[0024] By setting the adjustable direction and flow of the flushing nozzle on the inner wall before and after the pool, the slow flow, circulating flow or intermittent flow environment can be simulated according to different fish species and growth stages, the activity of the fry is enhanced, the feeding behavior formation is promoted, and the success rate of artificial feed domestication is improved. The top shielding structure adopts a sliding type shielding plate design, which can flexibly adjust the light shielding range according to day and night, weather and fry state; the light emitting lamps arranged below the shielding plate can realize directional and flexible light supplement, avoid strong light stimulation, and improve the environmental adaptability of the fry. The net cage structure and the support structure are connected in a detachable and adjustable manner, the mesh size, breeding density and space height can be adjusted according to different growth stages of the fry, the versatility and reusability of the device are improved, and the breeding cost is reduced. The feeding structure adopts an independent load-bearing plate design with a moving wheel, the feeding tank position is flexibly adjustable, the fixed-point and fixed-quantity feeding can be realized, the bait waste is reduced, the labor intensity is reduced, and the overall breeding management efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0026] Figure 2 is a side view structural schematic diagram of the present application;

[0027] Figure 3 is a top view structural schematic diagram of the present application;

[0028] Figure 4 is a structural schematic diagram of the support structure of the present application;

[0029] Figure 5 is a structural schematic diagram of the net cage structure of embodiment one of the present application;

[0030] Figure 6 is a structural schematic diagram of the net cage structure of embodiment two of the present application.

[0031] In the figure: 1, fish tank; 2, boss; 3, sewage pump; 4, sewage pipe; 5, oxygenator; 6, exhaust pipe; 7, flushing pump; 8, water jet pipe; 9, flushing nozzle; 10, buckle plate; 11, vertical rod; 12, guide plate; 13, shielding plate; 14, light emitting lamp; 15, cross rod; 16, telescopic rod one; 17, telescopic rod two; 18, top cover plate; 19, suspension rod; 20, stop rod; 21, buckle ring; 22, load-bearing plate; 23, moving wheel; 24, L-shaped rod; 25, clasp; 26, feeding tank; 27, fence; 28, pocket net; 29, hook. DETAILED DESCRIPTION

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0033] Please refer to Figures 1-6 The embodiment of the present application provides a technical solution:

[0034] The fish fry domestication and cultivation device comprises a fish tank 1, a support structure arranged in the fish tank 1, a net cage structure detachably connected with the support structure, a feeding structure arranged outside the fish tank 1, and a shielding structure arranged on the top of the fish tank 1. The fish tank 1 is in the shape of a cuboid and is open at the top. A sewage collection and treatment structure is arranged at the inner bottom of the fish tank 1. The sewage collection and treatment structure comprises two inclined bosses 2, and a V-shaped cavity is formed between the bosses 2. Two sewage pumps 3 are arranged at the middle of the bottom of the V-shaped cavity. The output port of the sewage pump 3 is connected with a sewage discharge pipe 4, and the sewage discharge pipe 4 extends to the outside of the fish tank 1.

[0035] An oxygenator 5 is arranged near the side of the sewage pump 3. An oxygen tank is connected to the outside of the oxygenator 5. An exhaust pipe 6 is connected to the output end of the oxygenator 5, and a plurality of permeable holes are arranged on the exhaust pipe 6. The oxygenator is arranged near the sewage pump, so that the oxygenation position is close to the sewage collection area at the bottom of the tank. The air is uniformly released into the water body through the plurality of permeable holes on the exhaust pipe, forming fine bubbles, so as to realize the continuous oxygen supply and disturbance of the bottom water body.

[0036] A water flushing pump 7 is arranged on the inner wall of the front and rear of the fish tank 1. A water jet pipe 8 is connected to the output end of the water flushing pump 7, and a plurality of water flushing nozzles 9 are arranged on the water jet pipe 8. The water flushing nozzles 9 are arranged in multiple groups at intervals, and the jet direction and jet flow are adjustable, which are used for simulating the natural water flow environment. The water flushing pump and the nozzles are symmetrically arranged on the inner wall of the front and rear of the tank, so as to form a water flow environment with controllable direction and adjustable flow rate in the tank. The nozzles are arranged at intervals, so that the water flow distribution is more uniform, and local strong scouring or dead water corner is avoided.

[0037] The shielding structure comprises two buckling plates 10 symmetrically arranged in the front and rear outer walls of the fish tank 1, the top of the buckling plate 10 is vertically connected with two vertical rods 11, the top of the vertical rod 11 is connected with a horizontal guide plate 12, a sliding groove is formed in the guide plate 12, a shielding plate 13 is slidably connected to the guide plate 12, and a plurality of spotlight 14 is arranged at the bottom of the shielding plate 13. The shielding plate slides smoothly through the sliding groove on the guide plate, and the light intensity, the state of the fry and the breeding stage can be adjusted flexibly. The spotlight is arranged at the bottom of the shielding plate, so that the direction of the light source is downward, and the strong light is prevented from directly irradiating the water surface.

[0038] The support structure comprises two groups of two horizontal rods 15 arranged vertically, a telescopic rod one 16 is arranged between the upper and lower sides of the two horizontal rods 15, and a telescopic rod two 17 is arranged between the left and right sides of the two horizontal rods 15. The four horizontal rods 15, the four telescopic rods one 16 and the four telescopic rods two 17 form a cuboid frame structure, the two sides of the bottom horizontal rod 15 are symmetrically provided with an insertion rod, and the insertion rod is inserted and fixed with the top of the boss 2. The support structure adopts a telescopic frame design, and the overall size is adjusted by the telescopic rod one and the telescopic rod two, so that the support can adapt to different specifications of the net cage structure. The insertion rod is inserted and fixed with the top of the boss, thereby improving the overall stability.

[0039] In example one, the net cage structure comprises a top cover plate 18, a suspension rod 19 is arranged at the top of the top cover plate 18, a plurality of blocking rods 20 are arranged at the bottom of the top cover plate 18, a clasp 21 is connected to the bottom of the plurality of blocking rods 20, and a net belt is arranged in the gap between the blocking rods 20 and the middle of the clasp 21. A closed net cage framework is formed by the top cover plate and the blocking rod, the net belt is fixed between the blocking rods and the middle of the clasp, different mesh specifications can be selected according to needs, and the net belt is used to limit the activity range of the fry and prevent escape.

[0040] The feeding structure comprises a bearing plate 22, a plurality of moving wheels 23 are arranged at the bottom of the bearing plate 22, an L-shaped rod 24 is connected to the top of the bearing plate 22, a support rod is connected to the inner end of the L-shaped rod 24, a clasp 25 is connected to the inner end of the support rod, a feeding tank 26 is arranged in the clasp 25, and a discharge port is arranged at the bottom of the feeding tank 26. The feeding structure can be moved outside the tank through the moving wheels, the feeding tank is suspended, the discharge port is used to control the feeding speed and amount, the feeding tank 26 is used for quantitative and timed feeding, the cylindrical or conical tank body, the funnel-shaped bottom, the prevention of bridging and blocking, the vibration servo motor outside, the control of automatic feeding through timed vibration.

[0041] In example two, the net cage structure comprises a long strip-shaped enclosing frame 27, a pocket net 28 is arranged at the bottom of the enclosing frame, and a plurality of hooks 29 are arranged at the top of the enclosing frame. The pocket net is relatively large and is suitable for group breeding of fry.

[0042] In use, the fish tank 1 is filled with water to a predetermined level, and the residual feed and feces generated during the movement of the fry are naturally slid along the inclined surface of the boss 2 to the V-shaped cavity under the water flow generated by the flushing pump 7. The double sewage pump 3 can be operated according to the water quality, and the polluted water is discharged outside the tank through the sewage pipe 4, realizing automatic pollution collection and discharge, and reducing the frequency of manual tank cleaning.

[0043] When the oxygenator 5 is running, air is released uniformly into the water body through the exhaust pipe 6 and the penetration hole, forming fine bubbles, which promote water circulation and increase the oxygen level at the bottom, preventing the fry from gathering or stressing due to lack of oxygen at the bottom.

[0044] The flushing pump 7 can be started alone or simultaneously, and the jetting direction and flow of the flushing nozzle 9 can be adjusted to form a slow circulating flow or a directional flow environment in the tank, which helps the fry to form regular swimming and feeding behavior, especially suitable for the artificial feed domestication stage.

[0045] The shielding plate 13 can move left and right along the sliding groove of the guide plate 12, and can be partially or completely shielded according to actual needs; the spotlight 14 provides flexible light supplement, which can be used on rainy days or at night to avoid strong light direct radiation causing fry disturbance.

[0046] The net cage structure is connected to the support structure through the suspension rod 19, and the support structure is fixed to the top of the boss 2 through the insertion rod, which is stable and reliable as a whole; the telescopic rod one 16 and the telescopic rod two 17 can adjust the frame size to adapt to different specifications of net cages and fry density requirements.

[0047] During feeding, the operator pushes the load-bearing plate 22 to the designated position, and realizes quantitative feeding through the discharge port at the bottom of the feeding tank 26, and the feeding position can be flexibly adjusted according to the distribution of the fry to reduce feed deposition and waste.

[0048] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0049] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A fish fry domestication and rearing device, characterized in that: The system includes a fish pond (1), a support structure inside the fish pond (1), a net cage structure detachably connected to the support structure, a feeding structure outside the fish pond (1), and a shielding structure on the top of the fish pond (1). The fish pond (1) is rectangular and open at the top. A sludge collection and treatment structure is provided at the bottom of the inner side of the fish pond (1). The sludge collection and treatment structure includes two sloping bosses (2), and the slope between the bosses (2) forms a V-shaped cavity. Two sewage pumps (3) are provided at the bottom middle position of the V-shaped cavity. The output port of the sewage pumps (3) is connected to a sewage pipe (4), and the sewage pipe (4) extends to the outside of the fish pond (1).

2. The fish fry domestication and rearing device according to claim 1, characterized in that: An oxygenator (5) is provided on the side near the sewage pump (3). An oxygen tank is connected to the outside of the oxygenator (5). An exhaust pipe (6) is connected to the output end of the oxygenator (5). Several seepage holes are provided on the exhaust pipe (6).

3. The fish fry domestication and rearing device according to claim 2, characterized in that: A flushing pump (7) is installed on the front and rear inner walls of the fish pond (1). The output end of the flushing pump (7) is connected to a spray pipe (8). Several flushing nozzles (9) are installed on the spray pipe (8). The flushing nozzles (9) are arranged in multiple groups at intervals. The spraying direction and spraying flow rate are adjustable to simulate the natural water flow environment.

4. The fish fry domestication and rearing device according to claim 3, characterized in that: The shielding structure includes two buckle plates (10), which are symmetrically distributed in the middle of the front and rear outer walls of the fish pond (1). The top of the buckle plate (10) is vertically connected to two uprights (11), and the top of each upright (11) is connected to a horizontal guide plate (12). The guide plate (12) is provided with a sliding groove, and a shielding plate (13) is slidably connected to the guide plate (12). Several spotlights (14) are provided at the bottom of the shielding plate (13).

5. The fish fry domestication and rearing device according to claim 4, characterized in that: The support structure includes two sets of horizontal bars (15) distributed vertically. Telescopic rods (16) are provided between the upper and lower sides of the two horizontal bars (15), and telescopic rods (17) are provided between the left and right sides of the two horizontal bars (15). The four horizontal bars (15), four telescopic rods (16) and four telescopic rods (17) together form a rectangular frame structure. Insert rods are symmetrically provided on both sides of the bottom horizontal bar (15). The insert rods are inserted and fixed to the top of the boss (2).

6. The fish fry domestication and rearing device according to claim 5, characterized in that: The cage structure includes a top cover plate (18), a suspension rod (19) is provided on the top of the top cover plate (18), and a number of baffles (20) are provided at the bottom of the top cover plate (18). The bottom of the baffles (20) is connected to a buckle (21), and a mesh belt is provided in the gap between the baffles (20) and in the middle of the buckle (21).

7. The fish fry domestication and rearing device according to claim 6, characterized in that: The feeding structure includes a load-bearing plate (22), with a moving wheel (23) at the bottom of the load-bearing plate (22), an L-shaped rod (24) connected to the top of the load-bearing plate (22), a support rod connected to the inner end of the L-shaped rod (24), a retaining ring (25) connected to the inner end of the support rod, a feeding tank (26) provided inside the retaining ring (25), a discharge port provided at the bottom of the feeding tank (26), and the feeding tank (26) provides quantitative and timed feeding.

8. The fish fry domestication and rearing device according to claim 1, characterized in that: The cage structure includes a long, narrow frame (27), a net (28) at the bottom of the frame, and several hooks (29) at the top of the enclosure.

Images