Device and method for artificial induced labor photoperiod control in long-snout catfish

Abstract

This invention relates to the field of long-snout catfish breeding technology, and discloses a device and method for artificially inducing spawning and controlling photoperiod in long-snout catfish. The device includes a water tank, a base plate fixed to the bottom of the water tank, and mounting plates fixed to both ends of the base plate. A push plate is slidably connected inside the water tank, and the push plate has multiple sliding grooves. Connecting rods slide through the sliding grooves, and the connecting rods have threaded grooves. Connecting rods are threaded through the threads at both ends of the threaded grooves. Loading blocks are provided on both sides of the push plate, sliding inside the water tank. Multiple connecting grooves corresponding to the connecting rods are provided on the side of the loading blocks closest to the push plate. This invention can be used to raise long-snout catfish requiring spawning induction, provide light for the farmed long-snout catfish, and allow for the on / off switching of the light source and adjustment of its position according to spawning needs. It also facilitates the injection of spawning-inducing drugs by staff, reducing the time spent picking up the long-snout catfish, saving time and effort.

Description

Technical Field

[0001] This invention relates to the field of long-snout catfish breeding technology, and more particularly to a device and method for controlling the photoperiod of artificial spawning in long-snout catfish. Background Technology

[0002] The long-snout catfish is an important and valuable freshwater economic fish in my country. Its flesh is tender and nutritious, making it highly valuable for aquaculture. Artificial spawning in long-snout catfish can increase the scale of its aquaculture, solve the problem of low reproductive efficiency in its natural environment, and thus achieve stable development of the long-snout catfish industry.

[0003] Photoperiod has a significant impact on the reproductive activities of the long-snout catfish. Appropriate light can stimulate gonad development and promote egg production. Therefore, photoperiod needs to be regulated during the artificial spawning process of long-snout catfish. Most existing photoperiod regulation methods directly turn the light source on and off. Although this method can regulate the photoperiod, it is inconvenient to use because it cannot adjust the position of the light source according to the specific needs of the aquaculture. Therefore, we propose a photoperiod regulation device and method for artificial spawning induction of long-snout catfish. Summary of the Invention

[0004] To address the technical problem of the difficulty in controlling the light source during artificial spawning in catfish, this invention provides a device and method for controlling the photoperiod of artificial spawning in catfish.

[0005] This invention employs the following technical solution: a photoperiod control device for artificial spawning in *Catfish spp.*, comprising a water tank, a base plate fixed to the bottom of the water tank, and mounting plates fixed to both ends of the base plate. A push plate is slidably connected inside the water tank. The push plate has multiple sliding grooves, through which connecting rods slide. Each connecting rod has a threaded groove, and connecting rods are threaded through the ends of the threaded grooves. Loading blocks that slide inside the water tank are located on both sides of the push plate. Multiple connecting grooves corresponding to the connecting rods are located on the side of each loading block closest to the push plate. The end of each connecting rod away from the connecting rod slides within an adjacent connecting groove. A light panel is located above the water tank, and multiple fluorescent lamps are fixed to the side of the light panel closest to the water tank. Two mounting plates are located on either side of the top of the water tank. The system includes a light-shielding plate with sliding shafts fixed at both ends of opposite sides. A groove is provided on the side of the mounting plate closest to the water tank, and the sliding shafts slide within adjacent grooves. Through the operation of these components, long-snout catfish requiring induced spawning can be raised. Light can be provided to the long-snout catfish in the water tank. It facilitates the collection of long-snout catfish from the connecting rods by staff, allowing for the injection of spawn-inducing drugs. This forces the long-snout catfish on the connecting rods to gather in one place, preventing them from scattering and facilitating collection. The spacing between multiple connecting rods can be adjusted, allowing for the screening of long-snout catfish of different sizes. The spacing between the fluorescent light and the water tank can also be adjusted, and the water tank can be shaded.

[0006] As a further improvement to the above solution, the light-shielding plate is located between the fluorescent lamp and the water tank. The height of the water tank is greater than the width of the light-shielding plate. The light-shielding plate in a vertical position can be stored in the water tank, which is taller than the width of the light-shielding plate.

[0007] As a further improvement to the above solution, a threaded sleeve is embedded at the top of the push plate, and a lead screw is threaded through the internal threads of the threaded sleeve. One end of the lead screw is rotatably connected to the inner wall of the water tank, and the other end of the lead screw extends to the outside of the water tank and is connected to a motor. Connecting ropes are fixedly wound on the outer walls of both ends of the lead screw. The end of the connecting rope away from the lead screw is fixed to the top side of the adjacent loading block. A drive shaft is provided on the side of the light panel away from the water tank. A drive frame is movably sleeved on the outer side of both ends of the drive shaft. Half gears are fixedly sleeved on the outer wall of the drive frame. Multiple half gears are fixed on the inner walls of both sides of the drive frame. The meshing gears and the fixed rod at the bottom of the transmission frame, with its other end fixed to the lamp plate, allow the motor to drive the lead screw to rotate. This rotation of the lead screw winds up the connecting rope, causing the loading block to move vertically upwards. When the lead screw rotates, the engagement between the lead screw and the threaded sleeve causes the threaded sleeve and the push plate to move. The rotation of the transmission shaft drives the half-gear to rotate. The engagement between the half-gear and the meshing gear causes the transmission frame to reciprocate vertically, leading to the fixed rod and the lamp plate, and ultimately, the fluorescent lamp. This allows for adjustment of the fluorescent lamp's position.

[0008] As a further improvement to the above solution, a transition hole is provided on the mounting plate near the motor. The lead screw is rotatably inserted inside the transition hole, allowing the lead screw to rotate flexibly.

[0009] As a further improvement to the above solution, a fixing plate is fixed to the outside of the motor, and multiple fixing plates are fixed to the side of the fixing plate near the water tank. The end of the fixing plate away from the fixing plate is fixed to an adjacent mounting plate. The motor can be fixed by the fixing plate.

[0010] As a further improvement to the above solution, one end of the drive shaft is rotatably connected to a mounting plate away from the fixed plate, and the other end of the drive shaft is rotatably connected to the fixed plate. Both the lead screw and the outer wall of the drive shaft are fixedly sleeved with drive wheels. The outside of the drive wheels is provided with a drive belt that drives the drive wheels. The mounting plate near the fixed plate has a second transition hole. The drive shaft rotatably passes through the second transition hole. When the lead screw rotates, the drive shaft can be driven to rotate through the cooperation of the drive wheel and the drive belt.

[0011] As a further improvement to the above solution, the water tank is equipped with a drain pipe, and a butterfly valve is installed on the drain pipe. When the butterfly valve is opened, the water inside the water tank can be discharged through the drain pipe.

[0012] As a further improvement to the above solution, a guide groove is provided on the side of the mounting plate near the light panel, and guide blocks are fixed at both ends of the light panel. The guide blocks slide inside the adjacent guide grooves. Through the cooperation of the guide blocks and guide grooves, the displaced light panel can be guided, thereby improving the stability of the light panel.

[0013] As a further improvement to the above solution, a guide hole is provided on the top of the push plate, and a guide rod fixed inside the water tank slides through the guide hole. The guide rod contacts the connecting rope, and the connecting rope can be guided by the guide rod to prevent the connecting rope from deviating during the winding or unwinding process.

[0014] The method for using a photoperiod control device for artificial spawning in *Catfish spp.* includes the following steps:

[0015] S1: The operation of fluorescent lamps can provide light for the long-snout catfish raised in the water tank;

[0016] S2: When it is necessary to inject spawning-inducing drugs into the long-snout catfish cultured in the water tank, the long-snout catfish cultured in the water tank will be moved vertically by the vertical displacement of the loading block. After the long-snout catfish cultured in the water tank floats to the surface, the aquaculture personnel can inject spawning-inducing drugs into the long-snout catfish.

[0017] S3: When it is necessary to shade the long-snout catfish raised in the tank, pull the shading plate to rotate it. When the shading plate is horizontal, push it to move it. When the shading plate closes the opening of the tank, the tank is shaded.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention can be used to raise long-snout catfish that need to be induced to spawn. It can provide light for the farmed long-snout catfish, and can turn the light source on and off according to the spawning needs, as well as adjust the position of the light source. It can facilitate the injection of spawning-inducing drugs by staff, reduce the time staff spend picking up the long-snout catfish, and save time and effort.

[0020] 2. This invention allows for the storage and folding of the shading component when providing light to farmed longsnout catfish, preventing the shading component from affecting the use of the device by staff. It facilitates the screening of longsnout catfish of different sizes by staff, has high working performance, and can be adaptively adjusted according to usage needs, making it easy to use. Attached Figure Description

[0021] Figure 1 A schematic diagram of a photoperiod control device for artificial spawning in *Catfish stolonifera*.

[0022] Figure 2A schematic diagram of the water tank being blocked by a light-shielding plate in an artificial spawning photoperiod control device for long-snout catfish.

[0023] Figure 3 A cross-sectional view of a photoperiod control device for artificial spawning in *Catfish spp.*

[0024] Figure 4 A schematic diagram of the fluorescent lamp in the artificial spawning photoperiod control device for long-snout catfish;

[0025] Figure 5 A schematic diagram of the transmission frame in the photoperiod control device for artificial spawning in *Catfish spp.*

[0026] Figure 6 for Figure 3 Enlarged structural diagram at point A;

[0027] Figure 7 for Figure 4 Enlarged structural diagram at point B.

[0028] Explanation of key symbols:

[0029] 1. Water tank; 2. Base plate; 3. Mounting plate; 4. Push plate; 5. Sliding groove; 6. Connecting rod; 7. Connecting rod; 8. Loading block; 9. Sunshade plate; 10. Sliding shaft; 11. Sliding groove; 12. Light panel; 13. Fluorescent lamp; 14. Threaded sleeve; 15. Lead screw; 16. Connecting rope; 17. Threaded groove; 18. Connecting groove; 19. Guide rod; 20. Drive shaft; 21. Drive frame; 22. Half gear; 23. Gear; 24. Motor; 25. Fixed plate; 26. Fixing plate; 27. Guide groove; 28. Guide block; 29. ​​Fixed rod. Detailed Implementation

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example 1:

[0032] Combination Figure 1 , Figure 2 and Figure 3The artificial induced spawning photoperiod control device for catfish in this embodiment includes a water tank 1, a base plate 2 fixed to the bottom side of the water tank 1, and mounting plates 3 fixed to both ends of the base plate 2. A push plate 4 is slidably connected inside the water tank 1. The push plate 4 has multiple sliding grooves 5. A connecting rod 6 slides through the sliding grooves 5. The connecting rod 6 has threaded grooves 17. Connecting rods 7 are threaded through the two ends of the threaded grooves 17. Loading blocks 8 are provided on both sides of the push plate 4 and slide inside the water tank 1. The loading blocks 8 are close to the push plate 4. Multiple connecting slots 18 corresponding to connecting rod 7 are provided on the side. The end of connecting rod 7 away from connecting rod 6 slides in the adjacent connecting slot 18. A light panel 12 is provided above the water tank 1. Multiple fluorescent lamps 13 are fixed on the side of the light panel 12 near the water tank 1. Light shields 9 are provided on both sides of the top side of the water tank 1 between two mounting plates 3. Sliding shafts 10 are fixed at the opposite ends of the two light shields 9. A sliding groove 11 is provided on the side of the mounting plate 3 near the water tank 1. The sliding shaft 10 slides in the adjacent sliding groove 11.

[0033] The implementation principle of the artificial spawning induction photoperiod control device and method for long-snout catfish in this application embodiment is as follows: Long-snout catfish requiring spawning induction can be raised in the water tank 1. The operation of the fluorescent lamp 13 provides illumination for the long-snout catfish raised in the water tank 1. When it is necessary to inject spawning-inducing drugs into the long-snout catfish raised in the water tank 1, the vertical displacement of the loading block 8 drives the connecting rod 7 to move. As the connecting rod 7 moves vertically upwards, it can lift the long-snout catfish raised in the water tank 1. The long-snout catfish undergoes a vertical upward displacement. Once the long-snout catfish in tank 1 are out of the water, workers can retrieve them from connecting rod 7 and inject them with oxytocin. The displacement of push plate 4 drives the long-snout catfish on connecting rod 7, forcing them to gather in one place and preventing them from scattering. This makes it easier for workers to retrieve them. Rotating connecting rod 7, through the connection between connecting rod 7 and the thread... The engagement of groove 17 causes the connecting rod 7 to move. When the end of the connecting rod 7 disengages from the adjacent connecting groove 18, the connecting rod 7 can be disassembled, allowing staff to adjust the spacing between multiple connecting rods 7. This facilitates the screening of long-snout catfish of different sizes. The vertical displacement of the light panel 12 causes the fluorescent lamp 13 to move vertically, allowing adjustment of the spacing between the fluorescent lamp 13 and the water tank 1. When it is necessary to shade the long-snout catfish in the water tank 1, pull the shading plate 9. Through the sliding engagement of the sliding shaft 10 and the sliding groove 11, the shading plate 9 is rotated. When the shading plate 9 is horizontal, push the shading plate 9. Through the sliding engagement of the sliding shaft 10 and the sliding groove 11, the shading plate 9 is moved. When the shading plate 9 closes the opening of the water tank 9, the water tank 1 is shaded, allowing for shading the long-snout catfish in the water tank 1.

[0034] The light shield 9 is located between the fluorescent lamp 13 and the water tank 1. The height of the water tank 1 is greater than the width of the light shield 9. The light shield 9 in its vertical state can be stored in the water tank 1, which is greater than the width of the light shield 9.

[0035] Example 2:

[0036] Combination Figure 4 , Figure 5 and Figure 7 This embodiment is an improvement on embodiment 1, further described in the following aspects:

[0037] A threaded sleeve 14 is fitted at the top of the push plate 4. A lead screw 15 is threaded through the internal threads of the threaded sleeve 14. One end of the lead screw 15 is rotatably connected to the inner wall of the water tank 1, and the other end of the lead screw 15 extends to the outside of the water tank 1 and is connected to a motor 24. The motor 24 is a forward and reverse stepper motor. Connecting ropes 16 are fixedly wound on the outer walls of both ends of the lead screw 15. The end of the connecting rope 16 away from the lead screw 15 is fixed to the top side of the adjacent loading block 8. A drive shaft 20 is provided on the side of the light plate 12 away from the water tank 1. A drive frame 21 is movably sleeved on the outer side of both ends of the drive shaft 20. Half gears 22 are fixedly sleeved on the outer wall of the drive shaft 20 inside the drive frame 21. Multiple teeth 23 that mesh with the half gears 22 are fixed on the inner walls of both sides of the drive frame 21. The bottom of the transmission frame 21 is fixed with a connecting rod 29, the other end of which is fixed to the light panel 12. The operation of the motor 24 can drive the lead screw 15 to rotate. The rotation of the lead screw 15 can wind up the connecting rope 16, causing the loading block 8 to move vertically upward. When the lead screw 15 rotates, the engagement of the lead screw 15 and the threaded sleeve 14 can cause the threaded sleeve 14 and the push plate 4 to move. The rotation of the transmission shaft 20 can drive the half gear 22 to rotate. The engagement of the half gear 22 and the meshing gear 23 can cause the transmission frame 21 to move reciprocally vertically, causing the connecting rod 29 and the light panel 12 to move reciprocally vertically, and causing the fluorescent lamp 13 to move vertically. At this time, the corresponding position of the fluorescent lamp 13 can be adjusted.

[0038] The mounting plate 3 near the motor 24 has an adapter hole 1. The lead screw 15 is rotatably inserted into the adapter hole 1, and the lead screw 15 can rotate flexibly through the adapter hole 1.

[0039] A fixing plate 25 is fixed to the outside of the motor 24. Multiple fixing plates 26 are fixed to the side of the fixing plate 25 near the water tank 1. The end of the fixing plate 26 away from the fixing plate 25 is fixed to the adjacent mounting plate 3. The motor 24 can be fixed through the fixing plate 25.

[0040] One end of the drive shaft 20 is rotatably connected to the mounting plate 3 away from the fixed plate 25, and the other end of the drive shaft 20 is rotatably connected to the fixed plate 25. Both the lead screw 15 and the outer wall of the drive shaft 20 are fixedly sleeved with drive wheels. The outside of the drive wheels is provided with a drive belt that drives the drive wheels. The mounting plate 3 near the fixed plate 25 has a second transfer hole. The drive shaft 20 rotatably passes through the inside of the second transfer hole. When the lead screw 15 rotates, the drive shaft 20 can be driven to rotate through the cooperation of the drive wheel and the drive belt.

[0041] Water tank 1 is equipped with a drain pipe and a butterfly valve. By opening the butterfly valve, the water inside water tank 1 can be drained through the drain pipe.

[0042] Example 3:

[0043] Combination Figure 1 This embodiment is an improvement on embodiment 3, further described in the following aspects:

[0044] The mounting plate 3 has a guide groove 27 on the side near the light plate 12. Guide blocks 28 are fixed at both ends of the light plate 12. The guide blocks 28 slide inside the adjacent guide grooves 27. Through the cooperation of the guide blocks 28 and the guide grooves 27, the displaced light plate 12 can be guided, thereby improving the stability of the light plate 12.

[0045] The top of the push plate 4 has a guide hole, and a guide rod 19 fixed inside the water tank 1 slides through the guide hole. The guide rod 19 contacts the connecting rope 16. The guide rod 19 can guide the connecting rope 16 to prevent the connecting rope 16 from deviating during winding or unwinding.

[0046] Example 4:

[0047] The method for using a photoperiod control device for artificial spawning in *Catfish spp.* includes the following steps:

[0048] S1: The operation of fluorescent lamp 13 can provide light for the long-snout catfish raised in water tank 1;

[0049] S2: When it is necessary to inject spawning-inducing drugs into the long-snout catfish raised in water tank 1, the long-snout catfish raised in water tank 1 will be moved vertically by the vertical displacement of the loading block 8. After the long-snout catfish raised in water tank 1 floats to the surface, the aquaculture personnel can inject spawning-inducing drugs into the long-snout catfish.

[0050] S3: When it is necessary to carry out shading culture of long-snout catfish in water tank 1, pull the shading plate 9 to rotate it. When the shading plate 9 is in a horizontal state, push the shading plate 9 to move it. When the shading plate 9 closes the opening of water tank 1, water tank 1 is shaded.

[0051] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A photoperiod control device for artificial spawning in *Catfish spp.*, comprising a water tank, a base plate fixed to the bottom of the water tank, and mounting plates fixed to both ends of the base plate, characterized in that, The water tank is internally connected to a push plate with multiple sliding grooves. A connecting rod slides through the sliding grooves, and the connecting rod has a threaded groove. Connecting rods are threaded through the two ends of the threaded groove. Loading blocks that slide inside the water tank are located on both sides of the push plate. Multiple connecting grooves corresponding to the connecting rods are located on the side of the loading blocks closest to the push plate. The end of the connecting rod away from the connecting rod slides in the adjacent connecting groove. A light panel is located above the water tank. Multiple fluorescent lamps are fixed on the side of the light panel closest to the water tank. Light shields are located on both sides of the top of the water tank between two mounting plates. Sliding shafts are fixed at the opposite ends of the two light shields. A sliding groove is located on the side of the mounting plate closest to the water tank, and the sliding shaft slides in the adjacent sliding groove. The top of the push plate is fitted with a threaded sleeve, and a lead screw is threaded through the internal thread of the threaded sleeve. One end of the lead screw is rotatably connected to the inner wall of the water tank, and the other end of the lead screw extends to the outside of the water tank and is connected to a motor. Connecting ropes are fixedly wound on the outer walls of both ends of the lead screw. The end of the connecting rope away from the lead screw is fixed to the top side of the adjacent loading block. A drive shaft is provided on the side of the light panel away from the water tank. A drive frame is movably fitted on the outside of both ends of the drive shaft. Half gears are fixedly fitted on the outer wall of the drive shaft inside the drive frame. Multiple teeth that mesh with the half gears are fixed on the inner walls of both sides of the drive frame. A fixed rod with the other end fixed to the light panel is fixed at the bottom of the drive frame. A mounting plate is fixed to the outside of the motor. Multiple mounting plates are fixed to the side of the mounting plate closest to the water tank. The end of the mounting plate away from the mounting plate is fixed to an adjacent mounting plate. One end of the drive shaft is rotatably connected to the mounting plate away from the fixed plate, and the other end of the drive shaft is rotatably connected to the fixed plate. The outer walls of the lead screw and the drive shaft are both fixedly sleeved with drive wheels. The outside of the drive wheels is provided with a drive belt that drives the drive wheels. The mounting plate near the fixed plate is provided with a second transition hole, and the drive shaft rotatably passes through the inside of the second transition hole. S1: The operation of fluorescent lamps can provide light for the long-snout catfish raised in the water tank; S2: When it is necessary to inject spawning-inducing drugs into the long-snout catfish cultured in the water tank, the long-snout catfish cultured in the water tank will be moved vertically by the vertical displacement of the loading block. After the long-snout catfish cultured in the water tank floats to the surface, the aquaculture personnel can inject spawning-inducing drugs into the long-snout catfish. S3: When it is necessary to shade the long-snout catfish raised in the tank, pull the shading plate to rotate it. When the shading plate is horizontal, push it to move it. When the shading plate closes the opening of the tank, the tank is shaded.

2. The photoperiod control device for artificial spawning in *Catfish simonii* as described in claim 1, characterized in that, The light-shielding plate is located between the fluorescent lamp and the water tank, and the height of the water tank is greater than the width of the light-shielding plate.

3. The photoperiod control device for artificial spawning in *Catfish simonii* as described in claim 1, characterized in that, An adapter hole is provided on the mounting plate near the motor, and the lead screw rotates through the interior of the adapter hole.

4. The photoperiod control device for artificial spawning in *Catfish simonii* as described in claim 1, characterized in that, The water tank is equipped with a drain pipe, and a butterfly valve is installed on the drain pipe.

5. The photoperiod control device for artificial spawning in *Catfish simonii* as described in claim 1, characterized in that, The mounting plate has a guide groove on the side near the light panel, and guide blocks are fixed at both ends of the light panel. The guide blocks slide inside the adjacent guide grooves.

6. The photoperiod control device for artificial spawning in *Catfish simonii* as described in claim 1, characterized in that, The top of the push plate has a guide hole, and a guide rod fixed inside the water tank slides through the guide hole. The guide rod is in contact with the connecting rope.

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