Equipment and method for facility breeding of micropterus salmoides

Abstract

The invention relates to the technical field of aquaculture, in particular to micropterus salmoides facility fry breeding equipment which comprises a fry breeding box, a mounting frame arranged in the fry breeding box in a sliding fit mode and a fixing frame fixed to the top end of the mounting frame. When the facility-based micropterus salmoides fry breeding equipment is used, the phototaxis habit and vitality characteristics of micropterus salmoides fries can be combined, the fries are guided to the upper still water area to form stable fry groups, accurate layering of the fry groups and bottom impurities is achieved, healthy fries are prevented from being discharged along with the impurities in the slag removal process from the source, fry loss is greatly reduced, and meanwhile, the fry breeding efficiency is improved. Through the arrangement of the winding assembly, the reciprocating assembly and the electric telescopic rod, the whole slag removal process of the equipment is orderly and controllable, impurities are prevented from diffusing into water, the problems that an existing equipment is single in slag removal structure and only can remove surface impurities are solved, impurities such as residual feed and dead fry in the seedling culture box are thoroughly removed, and the overall slag removal efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of bass fry breeding equipment technology, specifically to a facility-based breeding equipment and method for California bass. Background Technology

[0002] Existing facility-based fry rearing equipment for California bass typically includes core components such as rearing tanks, basic lighting control mechanisms, and temperature control mechanisms. During fry rearing, treated water is first introduced into the rearing tanks, and fry that have undergone a trial run are then introduced for cultivation. The lighting control mechanism regulates illumination, and the temperature control mechanism maintains the water temperature to meet the fry's growth needs. However, during the rearing period, the fry produce uneaten food during feeding, and their metabolic activities generate feces. Some weaker fry die and accumulate at the bottom of the tank. Additionally, unhatched eggs and shed yolk membranes become impurities in the water. If these impurities accumulate over time, they gradually decompose, producing harmful substances and disrupting the aquatic microecological balance. Existing equipment only provides basic temperature and light control and lacks a systematic approach to addressing the various types of impurities throughout the entire rearing process.

[0003] Even if existing seedling raising equipment is equipped with a simple cleaning structure, it fails to incorporate the biological habits of California bass fry into the design of a stratified control mechanism, making it impossible to accurately separate the fry from impurities. During the cleaning process, healthy fry are easily discharged along with impurities, causing unnecessary losses of fry. At the same time, these cleaning structures are mostly in the form of a single scraper or filter screen, which can only passively clean the visible impurities on the water surface. It is difficult to collect the uneaten feed, dead fry, and other impurities deposited at the bottom of the seedling raising tank in a comprehensive and thorough manner, resulting in poor cleaning effect. Summary of the Invention

[0004] The purpose of this invention is to provide a facility-based breeding device and method for California bass, in order to solve the technical problems of existing breeding equipment mentioned in the background art: on the one hand, existing equipment does not incorporate the phototactic behavior and vitality characteristics of California bass fry into the design of a fry-mixture stratification mechanism, which makes it impossible to achieve precise separation of fry and impurities during the sludge removal operation, and easily causes healthy fry to be discharged along with the impurities at the bottom, resulting in unnecessary fry loss; on the other hand, the sludge removal structure of existing equipment is relatively simple, mostly passive scrapers or surface filters, which can only clean visible impurities on the surface of the water, and are difficult to thoroughly collect uneaten feed, dead fry and shed yolk membranes deposited at the bottom of the breeding tank, which not only has poor cleaning effect, but also easily leads to the diffusion of impurities.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a facility-based breeding device for California bass, comprising a breeding box, a mounting frame slidably fitted inside the breeding box, and a fixing frame fixed to the top of the mounting frame. A temperature control mechanism is installed on one side of the breeding box, a light control mechanism is fixedly installed on the top of the breeding box, a micro-water flow guide component is provided near the bottom of the breeding box, a reciprocating component is provided near the bottom of the fixing frame, and a screen / debris removal component is provided on one side of the mounting frame. A winding assembly is provided on one side of the top of the frame, and a liquid storage tank is fixedly installed on the outside of one side of the seedling box; the micro-water flow guiding assembly includes a water pump and a water guide pipe, the water pump is fixedly installed on the outside of one side of the seedling box, and the water guide pipe is fixedly wrapped around the outside of the seedling box near the bottom; the screen removal assembly includes a winding drum, a rotating shaft, and a fine filter screen, the winding drum is fixed on the outside of one side of the mounting frame, the rotating shaft is rotatably installed inside the winding drum, the fine filter screen is wrapped around the outside of the rotating shaft, and one end of the fine filter screen extends to the outside of the bottom of the winding drum.

[0006] Furthermore, a three-way switching valve is fixedly connected to the output end of the water pump. One of the output ends of the three-way switching valve is fixedly connected to one end of the water pipe. The other end of the water pipe is sealed. Several first nozzles are fixedly inserted through the water pipe at equal intervals on the side facing the seedling box. The output ends of the first nozzles are all sealed and fixed inside the seedling box.

[0007] Furthermore, a reset torsion spring is fixedly fitted between both ends of the rotating shaft and the outside of the winding drum. Slide grooves are embedded inside both sides of the mounting frame. Connecting blocks are slidably engaged inside the slide grooves. One side of the connecting block is fixedly connected to the outside of one side of the fine filter screen. An arc-shaped scraper is fixedly installed between the bottom ends of the connecting blocks.

[0008] Furthermore, the winding assembly includes a rotating rod and two winding reels. The rotating rod is rotatably mounted on the outside of the top of the fixed frame via a rotating seat. The two winding reels are fixedly mounted on the outside of both ends of the rotating rod. A first stepper motor is fixedly mounted through the inside of the fixed frame. A worm gear is coaxially fixed to the output end of the first stepper motor. A worm wheel is fixedly mounted through the outside of the rotating rod. The worm wheel is meshed with the worm gear. A steel wire rope is fixedly wound around the outside of each winding reel. One end of the steel wire rope is fixedly connected to the outside of the connecting block on the corresponding side. An auxiliary roller is fixedly mounted on the top of the mounting frame away from the winding drum. The steel wire rope is wound around the outside of the auxiliary roller.

[0009] Furthermore, the reciprocating assembly includes a positioning frame, a lead screw, and an auxiliary rod. Two positioning frames are provided, respectively located on the upper and lower sides of the seedling box, and both positioning frames are fixedly installed on the outside of the seedling box. The lead screw is vertically and rotatably installed inside the two positioning frames. The auxiliary rod is vertically and fixedly installed inside the two positioning frames. A moving block is threaded through the outside of the lead screw. One side of the moving block is slidably installed through the outside of the auxiliary rod. A second stepper motor is fixedly installed on the top of the upper positioning frame. The output end of the second stepper motor is coaxially fixed with one end of the lead screw. The two ends of the moving block are fixedly connected to the bottom end of the fixed frame.

[0010] Furthermore, another output end of the three-way switching valve is connected to and fixed with an impact tube. The output end of the impact tube is installed inside the bottom end of the seedling box near the winding drum. A limit valve tube is installed inside the opposite side of the seedling box near the output end of the impact tube. A filter box is connected to and fixed at the end of the limit valve tube away from the seedling box.

[0011] Furthermore, a second gear is fixedly installed on the valve stem end of the valve inside the limiting valve pipe, a first gear is fixedly installed on the valve stem end of the valve inside the three-way switching valve, an electric telescopic rod is fixedly installed on the outside of one side of the seedling box, and a limiting rack is fixedly installed on the output end of the electric telescopic rod. Both the first gear and the second gear are meshed with the limiting rack.

[0012] Furthermore, the outside of the seedling box is provided with a liquid injection assembly; the liquid injection assembly includes a suction cylinder and a piston rod, the suction cylinder is vertically fixed at the top center of the positioning frame, the piston rod is slidably and sealed inside the suction cylinder, one end of the piston rod is fixedly installed on the top outside of the moving block, and a one-way liquid inlet valve pipe and a one-way liquid outlet valve pipe are fixedly connected through the top of the suction cylinder.

[0013] Furthermore, the input end of the one-way inlet valve pipe is fixedly installed inside the liquid storage tank, the output end of the one-way outlet valve pipe is connected and fixedly connected to a spring tube, the top of the mounting frame is surrounded and fixedly connected to a liquid guide pipe, one end of the liquid guide pipe is connected and fixedly connected to one end of the spring tube, and several second nozzles are fixedly installed through the liquid guide pipe at equal intervals.

[0014] The present invention also provides a method for facility-based breeding of California bass, comprising the following steps: S1: First, the treated water is introduced into the frying box. Then, the fish fry that have completed the water test are put into the frying box to carry out the frying operation. During the frying process, the light source is switched through the light control mechanism, and the water temperature is regulated through the temperature control mechanism. S2: After the seedling box has been used for a period of time, start the lighting control mechanism to adjust the light source to warm light, and at the same time run the micro water flow guide component to form a micro water flow at the bottom of the seedling box and form a stable upper seedling group at the top of the seedling box. S3: After the fry are layered and gathered, start the winding assembly to unfold the fine filter screen on one side of the installation frame in the middle of the fry box and form a shielding barrier. Then, control the reciprocating assembly to move the installation frame with the unfolded fine filter screen downward to press down and collect the residual impurities in the water. After the installation frame descends to the bottom of the fry box, start the winding assembly again to make the fine filter screen move back to its original position and move the arc scraper at the bottom to collect the impurities deposited at the bottom of the fry box and the impurities intercepted by the fine filter screen. S4: After the arc scraper is reset, control the electric telescopic rod to extend, drive the three-way switching valve to switch the output channel, open the limit valve pipe at the same time, start the water pump, and the pumped water is sprayed out through the impact pipe, flushing the collected impurities into the filter box through the limit valve pipe. After the impurities are flushed out, control the electric telescopic rod to retract, reset the three-way switching valve, and close the limit valve pipe. S5: Controls the reciprocating component to reverse and reset, causing the mounting frame to rise. The liquid injection component will operate synchronously, thereby slowly permeating a certain amount of probiotic liquid into each water layer.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By incorporating a lighting control mechanism and a micro-flow guiding component, this facility-based California bass fry rearing equipment can leverage the phototactic behavior and vitality characteristics of California bass fry to guide them to the upper still water zone, forming a stable fry population. This achieves precise stratification between the fry population and bottom impurities, preventing healthy fry from being discharged with impurities during the sludge removal process and significantly reducing fry loss. Simultaneously, the equipment utilizes a winding component, a reciprocating component, and an electric telescopic rod. This allows the fine filter screen to unfold and form a barrier, followed by the downward pressure of the mounting frame to collect dispersed impurities in the water. An arc-shaped scraper concentrates the bottom sediment, and subsequent switching of the water flow channel enables impact-style sludge removal. The entire sludge removal process is orderly and controllable, preventing impurities from spreading into the water. This solves the problem of existing equipment having a single sludge removal structure that can only clean surface impurities, achieving thorough removal of uneaten feed, dead fry, and other impurities within the rearing tank, thus improving overall sludge removal efficiency.

[0016] 2. Through the design of the reciprocating and injection components, this California bass fry rearing facility allows the reciprocating component to lift the mounting frame, simultaneously triggering the injection component to slowly permeate the probiotic solution into each water layer of the rearing tank. This ensures that the probiotics are fully colonized in all areas of the water. The probiotics can specifically decompose the trace organic debris remaining after cleaning, preventing the generation of harmful substances in the water due to the decomposition of organic matter. This effectively restores the micro-ecology of the water after cleaning. Compared to the shortcomings of existing equipment that lacks an ecological restoration step after cleaning, this design forms a complete closed loop of impurity cleaning and water ecological restoration. No additional manual addition of bacterial solution is required, which reduces the amount of manual operation and maintenance during the fry rearing process, continuously optimizes the fry rearing water environment, ensures a stable growth environment for California bass fry, and further improves the survival rate and overall quality of the fry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the seedling box and the liquid storage tank of the present invention; Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is a three-dimensional structural diagram of the mounting frame and fixing bracket of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 For the present invention Figure 5 Enlarged structural diagram at point D; Figure 8 This is a partial cross-sectional three-dimensional structural diagram of the winding drum and fine filter screen of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point E; Figure 10 This is a three-dimensional structural diagram of the positioning frame and lead screw of the present invention; Figure 11 This is a partial cross-sectional three-dimensional structural schematic diagram of the seedling box and impact tube of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point F; Figure 13 A schematic diagram demonstrating how the rotation of the winding reel unfolds the fine filter screen and the curved scraper. Figure 14A schematic diagram demonstrating the reset of the arc-shaped scraper after the installation frame descends to the bottom of the seedling box; Figure 15 This is a three-dimensional structural diagram of the positioning frame and suction cylinder of the present invention; Figure 16 This is a three-dimensional structural diagram of the one-way drain valve tube and spring tube of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Seedling box; 2. Mounting frame; 3. Fixing frame; 4. Winding drum; 5. Rotating shaft; 6. Fine filter screen; 7. Connecting block; 8. Return torsion spring; 9. Arc-shaped scraper; 10. Rotating rod; 11. First stepper motor; 12. Worm gear; 13. Worm wheel; 14. Winding reel; 15. Steel wire rope; 16. Slide groove; 17. Auxiliary roller; 18. Water pump; 19. Three-way switching valve; 20. Water guide pipe; 21. First nozzle; 22. Lighting control mechanism; 23. Positioning frame; 24. Lead screw; 25. Auxiliary rod; 26. Second stepper motor; 27. Moving block; 28. Suction cylinder; 29. ​​Piston rod; 30. One-way inlet valve tube; 31. Liquid storage tank; 32. One-way outlet valve tube; 33. Spring tube; 34. Liquid guide tube; 35. Second nozzle; 36. Temperature control mechanism; 37. Impact tube; 38. Limit valve tube; 39. Electric telescopic rod; 40. First gear; 41. Limit rack; 42. Second gear; 43. Filter box. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Figure 14A facility-based breeding system for California bass includes a breeding box 1, a mounting frame 2 that slides and fits inside the breeding box 1, and a fixing frame 3 fixed to the top of the mounting frame 2. A temperature control mechanism 36 is installed on one side of the breeding box 1, a light control mechanism 22 is fixedly installed on the top of the breeding box 1, a micro-flow guide component is installed near the bottom of the breeding box 1, a reciprocating component is installed near the bottom of the fixing frame 3, a screen and debris removal component is installed on one side of the mounting frame 2, and the fixing frame... A winding assembly is provided on one side of the top of 3; the micro-water flow guiding assembly includes a water pump 18 and a water guide pipe 20. The water pump 18 is fixedly installed on the outside of one side of the seedling box 1, and the water guide pipe 20 is fixed around the outside of the seedling box 1 near the bottom; the screen removal assembly includes a winding drum 4, a rotating shaft 5 and a fine filter screen 6. The winding drum 4 is fixed on the outside of one side of the mounting frame 2. The rotating shaft 5 is rotatably installed inside the winding drum 4. The fine filter screen 6 is wound around the outside of the rotating shaft 5, and one end of the fine filter screen 6 extends to the outside of the bottom of the winding drum 4.

[0021] A three-way switching valve 19 is fixedly connected to the output end of the water pump 18. One of the output ends of the three-way switching valve 19 is fixedly connected to one end of the water pipe 20. The other end of the water pipe 20 is sealed. Several first nozzles 21 are fixedly connected through the water pipe 20 at equal intervals on one side of the water pipe 20 facing the seedling box 1. The output ends of the first nozzles 21 are all fixedly connected and sealed inside the seedling box 1.

[0022] Both ends of the rotating shaft 5 are fitted with a reset torsion spring 8 and the outside of the winding drum 4. Both sides of the mounting frame 2 are fitted with embedded sliding grooves 16. Connecting blocks 7 are slidably engaged inside the sliding grooves 16. One side of the connecting block 7 is fixedly connected to the outside of one side of the fine filter screen 6. An arc-shaped scraper 9 is fixedly installed between the bottom ends of the connecting blocks 7.

[0023] The winding assembly includes a rotating rod 10 and two winding reels 14. The rotating rod 10 is rotatably mounted on the outside of the top of the fixed frame 3 via a rotating seat. The two winding reels 14 are fixedly mounted on the outside of both ends of the rotating rod 10. A first stepper motor 11 is fixedly mounted through the inside of the fixed frame 3. A worm gear 12 is coaxially fixed to the output end of the first stepper motor 11. A worm wheel 13 is fixedly mounted through the outside of the rotating rod 10. The worm wheel 13 is meshed with the worm gear 12. A steel wire rope 15 is fixedly wound around the outside of each winding reel 14. One end of the steel wire rope 15 is fixedly connected to the outside of the connecting block 7 on the corresponding side. An auxiliary roller 17 is fixedly mounted on the top of the mounting frame 2 away from the winding drum 4. The steel wire rope 15 is wound around the outside of the auxiliary roller 17.

[0024] The reciprocating assembly includes a positioning frame 23, a lead screw 24, and an auxiliary rod 25. There are two positioning frames 23, which are respectively located on the upper and lower sides of the outside of the seedling box 1. Both positioning frames 23 are fixedly installed on the outside of the seedling box 1. The lead screw 24 is vertically inserted and rotatably installed inside the two positioning frames 23. The auxiliary rod 25 is vertically fixedly installed inside the two positioning frames 23. A moving block 27 is threaded through the outside of the lead screw 24. One side of the moving block 27 is slidably installed through the outside of the auxiliary rod 25. A second stepper motor 26 is fixedly installed on the top of the upper positioning frame 23. The output end of the second stepper motor 26 is coaxially fixed with one end of the lead screw 24. The two ends of the moving block 27 are fixedly connected to the bottom end of the fixed frame 3.

[0025] Another output end of the three-way switching valve 19 is connected to and fixed with an impact pipe 37. The output end of the impact pipe 37 is installed inside the bottom end of the seedling box 1 near the winding drum 4. The opposite side of the seedling box 1 near the output end of the impact pipe 37 is connected to and fixed with a limit valve pipe 38. The end of the limit valve pipe 38 away from the seedling box 1 is connected to and fixed with a filter box 43.

[0026] The valve stem end of the internal valve of the limiting valve pipe 38 is fixedly installed with a second gear 42. The valve stem end of the internal valve of the three-way switching valve 19 is fixedly installed with a first gear 40. An electric telescopic rod 39 is fixedly installed on the outside of one side of the seedling box 1. A limiting rack 41 is fixedly installed at the output end of the electric telescopic rod 39. Both the first gear 40 and the second gear 42 are meshed with the limiting rack 41.

[0027] In this embodiment, the California bass facility-based seedling raising equipment uses the seedling box 1 as the core carrier. This equipment integrates functional modules such as temperature and light control, seedling and impurity stratification, and linked slag removal. It operates around the core closed-loop logic of precise stratification, linked slag collection, and efficient slag discharge, overcoming the technical limitations of existing seedling raising equipment that easily damages seedlings and does not thoroughly remove impurities during slag removal. The specific working principle and technical effects are as follows: Seedling control and stratification stage: During the seedling stage, the existing temperature control mechanism 36 on the outside of the seedling box 1 can precisely adjust the water temperature according to the temperature requirements of different growth stages of California bass fry. The top lighting control mechanism 22 can flexibly switch the type and intensity of the light source. The coordinated control of temperature and light realizes the efficient and controllable cultivation of fish fry, overcoming the shortcomings of existing equipment that can only perform basic temperature and light adjustment. When uneaten feed, dead fish fry, and other impurities accumulate at the bottom of the seedling box 1 and need to be cleaned, the micro-water flow guiding component is activated first: the water output from the water pump 18 enters the water guide pipe 20 fixed around the bottom of the seedling box 1 through the three-way switching valve 19, and is sprayed into the box through the first nozzle 21 on one side of the seedling box 1, forming a stable micro-water flow that fits the bottom of the pool; at the same time, the lighting control mechanism 22 is adjusted to a weak warm light, which uses the phototaxis of California bass fry to make them gather in the upper light source area. Healthy fish fry, due to their strong vitality, will actively avoid the bottom micro-water flow area, and finally form a stable fry group in the upper layer of the seedling box 1. This design breaks through the limitations of existing sludge-cleaning structures that lack a stratification mechanism for fry and impurities. It prevents healthy fry from being discharged with impurities during sludge cleaning from the source, significantly reducing fry loss and demonstrating the innovative adaptability of the equipment to the biological habits of fish fry.

[0028] The stage of net deployment and impurity collection: After the fish and impurities are separated into layers, the winding assembly and the net slag removal assembly are activated in conjunction. The first stepper motor 11 drives the worm gear 12 to rotate, which in turn drives the worm wheel 13 to rotate. The rotation of the worm wheel 13 drives the rotating rod 10 and the winding reels 14 at both ends to rotate. The winding reels 14 retract the wire rope 15. The wire rope 15 is guided by the auxiliary roller 17 and pulls the connecting block 7 to slide in the slide groove 16. The connecting block 7 drives the fine filter screen 6 to unfold from the rotating shaft 5 inside the winding drum 4. The reset torsion spring 8 generates reset force as the rotating shaft 5 rotates. The unfolded fine filter screen 6 forms a closed shielding layer in the middle of the seedling box 1 to prevent subsequent impurities from penetrating the mounting frame 2 and causing leakage. Subsequently, the reciprocating assembly starts, and the second stepper motor 26 drives the lead screw 24 to rotate, which in turn drives the moving block 27, which is sleeved on the outside of the auxiliary rod 25, to move downward. The moving block 27 pulls the fixed frame 3 and the mounting frame 2 to slide downward along the inner wall of the seedling box 1. The unfolded fine filter screen 6 can comprehensively intercept the dispersed suspended impurities in the water as the mounting frame 2 is pressed down, which solves the problem that the existing equipment can only clean the visible impurities on the surface, realizes the interception of suspended impurities in the water without dead angles, and improves the comprehensiveness of impurity collection.

[0029] Scraper reset and impurity collection stage: After the installation frame 2 descends to the bottom of the seedling box 1, the winding assembly reverses its direction. The first stepper motor 11 drives the winding reel 14 to release the wire rope 15. Under the reset force of the reset torsion spring 8, the rotating shaft 5 rotates in the reverse direction to retract the fine filter screen 6. The fine filter screen 6 drives the connecting block 7 to move and reset along the slide groove 16. The arc-shaped scraper 9 at the bottom of the connecting block 7 slides synchronously along the bottom of the seedling box 1, collecting the impurities deposited at the bottom of the pool and the impurities intercepted by the fine filter screen 6 to the designated area at the bottom of the seedling box 1. This design combines the interception of suspended impurities by the fine filter screen 6 with the scraping and collection of deposited impurities by the arc-shaped scraper 9, breaking through the limitations of existing equipment that uses a single scraper or filter screen for slag removal. It achieves the synchronous collection of surface suspended impurities and bottom deposited impurities. Furthermore, the structural design of the arc-shaped scraper 9, which fits into the bottom of the pool, avoids impurity residue, further ensuring the slag removal effect and solving the problem of incomplete cleaning by existing equipment.

[0030] In the stage of linkage impact slag discharge: after impurities are concentrated, the electric telescopic rod 39 extends, driving the limiting rack 41 to move. The limiting rack 41 meshes with the first gear 40 and the second gear 42, synchronously driving the three-way switching valve 19 to switch the output channel and the limiting valve pipe 38 to open. At this time, the water pumped by the water pump 18 enters the impact pipe 37 through the three-way switching valve 19 and is sprayed from the output end of the impact pipe 37 towards the area where impurities are concentrated. The impact force of the water flow will flush the concentrated impurities through the limiting valve pipe 38 into the existing filter box 43 to complete the slag discharge. After the slag discharge is completed, the electric telescopic rod 39 retracts, and the limiting rack 41 drives the first gear 40 and the second gear 42 to rotate in the opposite direction, causing the three-way switching valve 19 to reset and the limiting valve pipe 38 to close. This slag removal method achieves automation and precision by switching the electric telescopic rod 39 in conjunction with the valve and water flow impact, avoiding operational errors caused by manual slag removal. Moreover, compared with traditional manual slag removal, the impact slag removal does not cause the spread of impurities, further ensuring slag removal efficiency and water stability. This reflects the automation innovation of the equipment in the slag removal process and improves the overall operation and maintenance efficiency.

[0031] Meanwhile, this solution uses an electric telescopic rod 39 to drive a limiting rack 41, synchronously meshing the first gear 40 and the second gear 42 to control the state switching of the three-way switching valve 19 and the limiting valve pipe 38. This is an optimization based on the actual scenario requirements of the California bass broodstock 1 cleaning operation: On the one hand, when cleaning the broodstock 1, it is necessary to ensure that the "water flow channel switching" and the "impurity discharge channel opening" are completely synchronized. If the two valves are manually operated separately or a single valve is controlled by a separate drive mechanism, the limiting valve pipe 38 may not open in time when the impact pipe 37 sprays water due to the action delay, causing water pressure fluctuations in the broodstock 1, or the limiting valve pipe 38 may open prematurely, resulting in the residue of impurities that have not been impacted. The meshing transmission between the rack 41 and the first gear 40 and the second gear 42 can achieve synchronous response, which is fully adapted to the coordinated needs of water flow and slag discharge during slag removal. On the other hand, the electric telescopic rod 39 has the characteristics of controllable stroke and stable output force. Compared with the pneumatic drive, which requires an additional air source, and the hydraulic drive, which is prone to failure due to moisture in the water environment, it is more suitable for the actual installation and operation and maintenance scenarios of humid and compact seedling workshops. Moreover, the first gear 40 and the second gear 42 are both standard spur gears, and the limiting rack 41 is a matching standard part, which is convenient to purchase and replace, greatly reducing the later maintenance cost of the equipment. The overall structure meets the actual application requirements of stable, easy operation and maintenance and adaptability to humid environments for aquatic seedling equipment.

[0032] Example 2: Please refer to Figure 2 , Figure 5 and Figure 16 This embodiment further illustrates Example 1, wherein a liquid storage tank 31 is fixedly installed on the outside of one side of the seedling box 1.

[0033] The seedling box 1 is equipped with an injection assembly on its exterior. The injection assembly includes a suction cylinder 28 and a piston rod 29. The suction cylinder 28 is vertically fixed to the top center of the positioning frame 23. The piston rod 29 is slidably and sealed inside the suction cylinder 28. One end of the piston rod 29 is fixedly installed on the top exterior of the moving block 27. A one-way inlet valve pipe 30 and a one-way outlet valve pipe 32 are fixedly connected through the top of the suction cylinder 28.

[0034] The input end of the one-way inlet valve pipe 30 is fixedly installed inside the liquid storage tank 31. The output end of the one-way outlet valve pipe 32 is connected to and fixed with a spring tube 33. The top of the mounting frame 2 is surrounded and fixed with a liquid guide pipe 34. One end of the liquid guide pipe 34 is connected and fixed with one end of the spring tube 33. Several second nozzles 35 are fixedly installed through the liquid guide pipe 34 at equal intervals.

[0035] In this embodiment, a storage tank 31 and an injection component are added. The reciprocating component drives the mounting frame 2 to press down and collect slag to complete the suction of the bacterial solution. Then, the mounting frame 2 is lifted and reset to achieve automatic discharge of the bacterial solution, forming a complete closed loop of impurity cleaning, bacterial solution injection, and water micro-ecological restoration. This solves the technical defects of existing equipment, such as the need for manual addition of bacterial solution after slag cleaning, delayed timing of bacterial solution injection, uneven distribution, and susceptibility to contamination. The specific working principle and technical effects are as follows: During the bacterial solution aspiration stage of the injection assembly: When the second stepper motor 26 drives the lead screw 24 to rotate in the forward direction, it causes the moving block 27, which is sleeved on the outside of the auxiliary rod 25, to slide vertically downward along the auxiliary rod 25. Simultaneously, the moving block 27 pulls the fixing frame 3 and the mounting frame 2 downward along the inner wall of the seedling box 1. Since one end of the piston rod 29 of the injection assembly is fixed to the outside of the top of the moving block 27, the downward movement of the moving block 27 will simultaneously drive the piston rod 29 to slide downward inside the suction cylinder 28. The downward movement of the piston rod 29 creates a negative pressure inside the suction cylinder 28, and the probiotic bacterial solution stored in the storage tank 31 is drawn into the suction cylinder 28 through the one-way inlet valve pipe 30.

[0036] In the stage of bacterial solution drainage, transportation, and uniform penetration into the entire water layer: the second stepper motor 26 drives the lead screw 24 to rotate in the opposite direction, causing the moving block 27 to slide upward along the auxiliary rod 25. The moving block 27 pushes the fixed frame 3 and the mounting frame 2 upward along the inner wall of the seedling box 1, while simultaneously causing the piston rod 29 to slide upward inside the suction cylinder 28. The upward movement of the piston rod 29 creates positive pressure inside the suction cylinder 28. The probiotic solution in the suction cylinder 28 flows into the spring tube 33 through the one-way drainage valve pipe 32. The spring tube 33 has extensible deformation characteristics, which can adapt to the positional changes of the mounting frame 2 during the lifting process, avoiding pipe pulling and breakage or bacterial solution leakage, and ensuring the stability of bacterial solution transportation. The bacterial solution enters the liquid guide tube 34, which is fixed around the top of the mounting frame 2, through the spring tube 33. The liquid guide tube 34 is arranged in a closed loop along the top of the mounting frame 2, and several second nozzles 35 are fixed through it at equal intervals. The bacterial solution is slowly sprayed out in a mist form through the second nozzles 35. This avoids water disturbance caused by water jet impact and stress to the fish fry, and allows the bacterial solution to gradually penetrate into the upper, middle and lower layers of water in the nursery box 1 as it is raised from the mounting frame 2. This solves the problem of uneven distribution when the bacterial solution is manually sprinkled in the existing equipment, and ensures that the probiotics are fully colonized in all areas of the water.

[0037] The probiotic solution, sprayed in a mist, diffuses evenly within the fry rearing tank 1, specifically decomposing residual trace organic debris after cleaning, such as uneaten feed fragments and dead fish fry remains. This prevents the production of harmful substances like ammonia and nitrite from these debris, effectively restoring the slightly disturbed aquatic microecology during the cleaning process. Simultaneously, the evenly colonized probiotics inhibit the growth of harmful bacteria like Vibrio and Escherichia coli, reducing the incidence of gill rot and enteritis in California bass fry. Compared to existing equipment that requires manual addition of probiotic solution after cleaning, this design automates the process of adding the probiotic solution and resetting the mounting frame 2 after cleaning, eliminating the need for manual intervention. This reduces the amount of manual maintenance required during the fry rearing process, overcoming the limitations of existing equipment that can only clean debris but cannot simultaneously restore the water quality. This ensures the stability of the California bass fry's growth environment, significantly improving the survival rate and overall quality of the fry.

[0038] The present invention also provides a method for facility-based breeding of California bass, comprising the following steps: S1: First, the treated water is introduced into the seedling box 1. Then, the fish fry that have completed the water test are put into the seedling box 1 to carry out the seedling operation. During the seedling operation, the light source is switched through the light control mechanism 22, and the water temperature is regulated through the temperature control mechanism 36. S2: After the seedling box 1 has been used for a period of time, start the lighting control mechanism 22, adjust the light source to warm light, and at the same time run the micro water flow guide component to form a micro water flow at the bottom of the seedling box 1 and form a stable upper seedling group at the top of the seedling box 1. S3: After the fry are layered and gathered, start the winding assembly to unfold the fine filter screen 6 on one side of the mounting frame 2 in the middle of the seedling box 1 and form a shielding barrier. Then, control the reciprocating assembly to drive the mounting frame 2 with the unfolded fine filter screen 6 to move downward, pressing down and collecting the residual impurities in the water. After the mounting frame 2 descends to the bottom of the seedling box 1, start the winding assembly again to make the fine filter screen 6 move back to its original position and move the arc scraper 9 at its bottom to collect the impurities deposited at the bottom of the seedling box 1 and the impurities intercepted by the fine filter screen 6. S4: After the arc-shaped scraper 9 is reset, the electric telescopic rod 39 is extended to drive the three-way switching valve 19 to switch the output channel. At the same time, the limit valve pipe 38 is opened and the water pump 18 is started. The pumped water is sprayed out through the impact pipe 37 and the collected impurities are flushed into the filter box 43 through the limit valve pipe 38. After the impurities are flushed out, the electric telescopic rod 39 is retracted to reset the three-way switching valve 19 and close the limit valve pipe 38. S5: Control the reciprocating component to reverse and reset, causing the mounting frame 2 to rise. The liquid injection component will run synchronously, thereby slowly permeating a certain amount of probiotic liquid into each water layer.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A facility-based breeding system for California bass, comprising a breeding box (1), a mounting frame (2) slidably fitted inside the breeding box (1), and a fixing bracket (3) fixed to the top of the mounting frame (2), characterized in that: A temperature control mechanism (36) is installed on one side of the seedling box (1), a light control mechanism (22) is fixedly installed on the top of the seedling box (1), a micro-water flow guide component is provided on the outside of the seedling box (1) near the bottom, a reciprocating component is provided on the outside of the seedling box (1) near the bottom of the fixing frame (3), a screen slag removal component is provided on one side of the mounting frame (2), a winding component is provided on one side of the top of the fixing frame (3), and a liquid storage tank (31) is fixedly installed on one side of the seedling box (1). The micro-water flow guiding component includes a water pump (18) and a water guide pipe (20). The water pump (18) is fixedly installed on the outside of one side of the seedling box (1), and the water guide pipe (20) is fixed around the outside of the seedling box (1) near the bottom. The screen slag removal assembly includes a winding drum (4), a rotating shaft (5), and a fine filter screen (6). The winding drum (4) is fixed to the outside of one side of the mounting frame (2). The rotating shaft (5) is rotatably installed inside the winding drum (4). The fine filter screen (6) is wound around the outside of the rotating shaft (5), and one end of the fine filter screen (6) extends to the outside of the bottom end of the winding drum (4).

2. The equipment for facility-based breeding of California bass according to claim 1, characterized in that: The output end of the water pump (18) is connected to a three-way switching valve (19). One of the output ends of the three-way switching valve (19) is connected to one end of the water pipe (20). The other end of the water pipe (20) is sealed. Several first nozzles (21) are fixedly inserted through the water pipe (20) at equal intervals on one side facing the seedling box (1). The output ends of the first nozzles (21) are all sealed and fixed inside the seedling box (1).

3. The equipment for facility-based breeding of California bass according to claim 1, characterized in that: Both ends of the rotating shaft (5) are fitted with a reset torsion spring (8) and the outside of the winding drum (4). The two sides of the mounting frame (2) are fitted with a sliding groove (16). The sliding groove (16) is fitted with a connecting block (7). One side of the connecting block (7) is fixedly connected to the outside of one side of the fine filter screen (6). An arc-shaped scraper (9) is fixedly installed between the bottom ends of the connecting block (7).

4. The equipment for facility-based breeding of California bass according to claim 3, characterized in that: The winding assembly includes a rotating rod (10) and two winding reels (14). The rotating rod (10) is rotatably mounted on the outside of the top of the fixed frame (3) via a rotating seat. The two winding reels (14) are fixedly mounted on the outside of both ends of the rotating rod (10). A first stepper motor (11) is fixedly mounted inside the fixed frame (3). A worm gear (12) is fixedly mounted coaxially at the output end of the first stepper motor (11). A worm wheel (13) is fixedly mounted through the outside of the rotating rod (10). The worm wheel (13) meshes with the worm gear (12). A steel wire rope (15) is fixedly wound around the outside of each winding reel (14). One end of the steel wire rope (15) is fixedly connected to the outside of the corresponding connecting block (7). An auxiliary roller (17) is fixedly mounted on the top of the mounting frame (2) away from the winding drum (4). The steel wire rope (15) is wound around the outside of the auxiliary roller (17).

5. The equipment for facility-based breeding of California bass according to claim 1, characterized in that: The reciprocating assembly includes a positioning frame (23), a lead screw (24), and an auxiliary rod (25). There are two positioning frames (23), which are respectively located on the upper and lower sides of the outside of the seedling box (1). Both positioning frames (23) are fixedly installed on the outside of the seedling box (1). The lead screw (24) is vertically inserted and rotated inside the two positioning frames (23). The auxiliary rod (25) is vertically fixed inside the two positioning frames (23). A moving block (27) is threaded through the outside of the lead screw (24). One side of the moving block (27) is slidably installed through the outside of the auxiliary rod (25). A second stepper motor (26) is fixedly installed on the top of the upper positioning frame (23). The output end of the second stepper motor (26) is coaxially fixed with one end of the lead screw (24). Both ends of the moving block (27) are fixedly connected to the bottom end of the fixed frame (3).

6. The equipment for facility-based breeding of California bass according to claim 2, characterized in that: The other output end of the three-way switching valve (19) is connected to an impact pipe (37). The output end of the impact pipe (37) is installed inside the bottom end of the seedling box (1) near the winding drum (4). The opposite side of the seedling box (1) near the output end of the impact pipe (37) is connected to a limit valve pipe (38). The end of the limit valve pipe (38) away from the seedling box (1) is connected to a filter box (43).

7. The equipment for facility-based breeding of California bass according to claim 6, characterized in that: The valve stem end of the valve inside the limiting valve tube (38) is fixedly installed with a second gear (42), the valve stem end of the valve inside the three-way switching valve (19) is fixedly installed with a first gear (40), an electric telescopic rod (39) is fixedly installed on the outside of one side of the seedling box (1), and a limiting rack (41) is fixedly installed at the output end of the electric telescopic rod (39). The first gear (40) and the second gear (42) are both meshed with the limiting rack (41).

8. The equipment for facility-based breeding of California bass according to claim 5, characterized in that: The outside of the seedling box (1) is equipped with a liquid injection assembly; The injection assembly includes a suction cylinder (28) and a piston rod (29). The suction cylinder (28) is vertically fixed at the top center of the positioning frame (23). The piston rod (29) is slidably and sealed inside the suction cylinder (28). One end of the piston rod (29) is fixedly installed outside the top of the moving block (27). A one-way inlet valve pipe (30) and a one-way outlet valve pipe (32) are fixedly connected through the top of the suction cylinder (28).

9. The equipment for facility-based breeding of California bass according to claim 8, characterized in that: The input end of the one-way inlet valve pipe (30) is fixedly installed inside the liquid storage tank (31). The output end of the one-way outlet valve pipe (32) is connected to and fixed with a spring tube (33). The top of the mounting frame (2) is surrounded and fixed with a liquid guide pipe (34). One end of the liquid guide pipe (34) is connected and fixed to one end of the spring tube (33). Several second nozzles (35) are fixedly installed through the liquid guide pipe (34) at equal intervals.

10. A method for facility-based breeding of California bass, using the facility-based breeding equipment for California bass as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: First, the treated water is introduced into the seedling box (1), and then the fish fry that have completed the water test are put into the seedling box (1) to carry out the seedling operation. During the seedling process, the light source is switched through the light control mechanism (22), and the water temperature is regulated through the temperature control mechanism (36). S2: After the seedling box (1) has been used for a period of time, start the lighting control mechanism (22) to adjust the light source to warm light, and at the same time run the micro water flow guide component to form a micro water flow at the bottom of the seedling box (1) and form a stable upper seedling group at the top of the seedling box (1); S3: After the fry are layered and gathered, start the winding assembly to unfold the fine filter screen (6) on one side of the mounting frame (2) in the middle of the seedling box (1) and form a shielding barrier. Then control the reciprocating assembly to drive the mounting frame (2) with the unfolded fine filter screen (6) to move downward and press down to collect the residual impurities in the water. After the mounting frame (2) descends to the bottom of the seedling box (1), start the winding assembly again to make the fine filter screen (6) move back to its original position and move the arc scraper (9) at its bottom to collect the impurities deposited at the bottom of the seedling box (1) and the impurities intercepted by the fine filter screen (6). S4: After the arc scraper (9) is reset, the electric telescopic rod (39) is extended to drive the three-way switching valve (19) to switch the output channel. At the same time, the limit valve pipe (38) is opened and the water pump (18) is started. The pumped water flows out through the impact pipe (37) and flushes the collected impurities into the filter box (43) through the limit valve pipe (38). After the impurities are flushed out, the electric telescopic rod (39) is retracted to reset the three-way switching valve (19) and close the limit valve pipe (38). S5: Control the reciprocating component to reverse and reset, causing the mounting frame (2) to rise. The liquid injection component will run synchronously, thereby slowly penetrating a certain amount of probiotic liquid into each water layer.

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