Automatic oxygenation device for penaeus vannamei cultivation pond

Abstract

The application discloses an automatic oxygenation device for South American prawn culture ponds, which comprises a floating mechanism, wherein the floating mechanism comprises a floating plate and a float, the float is arranged on the floating plate, and a surge oxygenation mechanism and a non-powered self-translation mechanism are arranged on the floating mechanism. The application relates to the technical field of oxygenation devices, and particularly provides the automatic oxygenation device for South American prawn culture ponds, which can generate more bubbles, has a better oxygenation effect, can generate a surge effect in the oxygenation process, can diffuse the bubbles to a larger range, has a larger oxygenation range, can move in the culture pond in the oxygenation process without any independent drive, has a wider action range, and can actively control the moving speed.

Description

Technical Field

[0001] This invention relates to the field of oxygenation devices, specifically to an automatic oxygenation device for use in South American shrimp farming ponds. Background Technology

[0002] The whiteleg shrimp, scientifically known as *Litopenaeus vannamei*, belongs to the phylum Arthropoda, class Crustacea, order Decapoda, suborder Nemesis, family Penaeidae, and genus *Litopenaeus*. It is a eurythermal and euryhaline tropical shrimp. In the farming of whiteleg shrimp, aeration devices are needed to increase oxygen levels in the culture ponds to ensure the healthy growth of the shrimp.

[0003] Impeller aerators are commonly used aeration devices in existing technology. They increase dissolved oxygen levels in water by agitating the water. During use, the entire unit is attached to the aquaculture pond and secured with ropes. When aerating, only small waves are formed around the aerator, while other areas of the pond remain dry, resulting in a limited aeration range and poor aeration effect. Furthermore, traditional aeration devices have a limited aeration range, and most existing devices are fixed in a specific location within the pond. When the pond is large, multiple aeration devices are typically required to meet the aeration needs, leading to a significant waste of resources and energy. Summary of the Invention

[0004] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides an automatic oxygenation device for shrimp farming ponds that can generate more bubbles and achieve better oxygenation; can generate a surge effect during the oxygenation process, allowing the bubbles to diffuse over a wider area and thus increasing the oxygenation range; and can move within the aquaculture pond during the oxygenation process without any independent drive, thus expanding its range of action; and can actively regulate its movement speed.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an automatic oxygenation device for shrimp farming ponds in South America, comprising a floating mechanism, wherein the floating mechanism comprises a float plate and a float cylinder, the float cylinder being disposed on the float plate, and further comprising a wave-inducing oxygenation mechanism and a non-powered self-translating mechanism, wherein the wave-inducing oxygenation mechanism and the non-powered self-translating mechanism are both disposed on the floating mechanism.

[0006] Furthermore, the surge aeration mechanism includes a drive motor, a drive shaft, a connecting sleeve, and an impeller assembly. The float has a cavity, the drive motor is located inside the cavity, the bottom of the float plate has a through hole, the output shaft of the drive motor passes through the through hole, the drive shaft is located on the output shaft of the drive motor, the connecting sleeve is located on the drive shaft, the impeller assembly is located on the connecting sleeve, and the surge aeration mechanism also includes a lifting surge assembly.

[0007] Furthermore, the lifting surge assembly includes a guide sleeve, a first spring, a guide unit, and a rebound control unit. The guide sleeve is located at the bottom of the float and is sleeved on the outside of the connecting sleeve. The inner wall of the guide sleeve is provided with a guide thread. The drive shaft is provided with a connecting plate. The first spring is sleeved on the outside of the drive shaft and is located on the connecting plate. The connecting sleeve is located on the first spring and is engaged and slidably sleeved on the drive shaft. The guide unit is located on the connecting sleeve and is slidably located within the guide thread. The rebound control unit is located at the bottom of the guide sleeve and cooperates with the guide unit.

[0008] Furthermore, the guide unit includes a second spring and a damping sliding guide pin. The connecting sleeve is provided with a groove. The second spring is provided on the bottom wall of the groove. The damping sliding guide pin is provided on the second spring and is slidably disposed in the groove. The damping sliding guide pin is provided with a guide cylinder. The guide cylinder is slidably disposed in the guide thread. The bottom of the damping sliding guide pin is provided with a first inclined surface.

[0009] Furthermore, the rebound control unit includes an annular base plate and a guide ring. The annular base plate is located at the bottom of the guide sleeve, and the guide ring is located at the top of the annular base plate. The guide ring has a second inclined surface that cooperates with the first inclined surface.

[0010] Furthermore, the non-powered self-translation mechanism includes two sets of fixed piles and a self-translation component. The fixed piles are provided in two sets, and the self-translation component includes a rope and a guide wheel. The guide wheel is sleeved on the buoy, and the rope is wound around the guide wheel once, and its two ends are respectively connected to the two sets of fixed piles.

[0011] Furthermore, the self-translation assembly is provided with a speed adjustment assembly, which includes a fixed plate, an adjustment clamp, and an adjustment bolt. The fixed plate is disposed on the guide wheel, the adjustment clamp is disposed on the fixed plate, the adjustment clamp is clamped on the rope, and the adjustment bolt is disposed on the adjustment clamp for adjusting the clamping force of the adjustment clamp on the rope.

[0012] Furthermore, the float is provided with a flow guiding assembly, which includes a mounting ring, a connecting rod, and a flow guiding shroud. The mounting ring is sleeved on the float, the connecting rod is disposed on the mounting ring, and the flow guiding shroud is disposed on the connecting rod. The top of the flow guiding shroud is provided with an outward flange.

[0013] Furthermore, the impeller assembly includes an impeller shaft and an oxygenating impeller. The impeller shaft is mounted on a connecting sleeve, and the oxygenating impeller is mounted on the impeller shaft. The blades of the oxygenating impeller are provided with circular holes.

[0014] Furthermore, the guide units are arranged in a circular array of several groups, and the guide cylinders on the several groups of guide units are arranged sequentially in the height direction to ensure that the several groups of guide cylinders can slide in the guide thread. The first inclined surfaces of the several groups of guide units are at the same horizontal height to ensure that they can contact the second inclined surface at the same time.

[0015] Furthermore, the number of self-translation components is no less than two sets.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] This solution uses an aerator impeller with round holes to stir the water surface, creating more small bubbles and thus increasing the dissolved oxygen content in the water.

[0018] This solution generates bubbles by driving the aerator impeller to rotate via a drive motor. It also drives the aerator impeller to alternate between two different operating processes: slow descent and rapid ascent. The rapid ascent of the aerator impeller creates a surge effect, generating larger waves. This surge allows the bubbles to spread over a wider area, thereby improving the aeration effect and expanding the effective coverage area without changing the power of the drive motor. The slow descent of the aerator impeller does not affect the overflow of water flow and reduces the suppression effect on the surge.

[0019] This solution, without any electronic feedback or control modules, achieves two different operating processes—slow descent and rapid ascent—alternating during the rotation of the aerator impeller through a clever mechanical structure, overcoming technical bias and producing beneficial technical effects.

[0020] This solution utilizes the reverse force of water on the aeration device during the rotation of the aeration impeller to provide the driving force for the floating mechanism to move along the rope. This allows the aeration device to achieve the technical objective of controlling its movement and the technical effect of non-fixed-position aeration without setting any walking module, thereby expanding the aeration range and improving the aeration effect.

[0021] This solution, by setting up a speed adjustment component, can actively adjust and control the travel speed of this oxygenation device. During adjustment, it is only necessary to adjust the frictional resistance between the rope and the adjustment clamp by tightening or loosening the adjustment bolt, thereby achieving control over the travel speed of this oxygenation device. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a perspective view of an embodiment of the present invention;

[0024] Figure 2 This is a front view of an embodiment of the present invention;

[0025] Figure 3 This is a left view of an embodiment of the present invention;

[0026] Figure 4 This is a top view of an embodiment of the present invention;

[0027] Figure 5 for Figure 2 A sectional view along section AA;

[0028] Figure 6 for Figure 5 A sectional view along section BB.

[0029] Figure 7 This is a schematic diagram of the structure of the fixed pile, the self-translation component, and the speed adjustment component in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the guide sleeve and springback control unit in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the surge oxygenation mechanism after removing the guide sleeve and the rebound control unit in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the floating mechanism in an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram of the flow guiding component in an embodiment of the present invention;

[0034] Figure 12 for Figure 1 Enlarged view of section A;

[0035] Figure 13 for Figure 5 Enlarged view of section B;

[0036] Figure 14 for Figure 6 Enlarged view of section C;

[0037] Figure 15 for Figure 9 Enlarged view of section D.

[0038] The components include: 1. Floating mechanism; 2. Surge aeration mechanism; 3. Non-powered self-translating mechanism; 4. Float; 5. Float; 6. Drive motor; 7. Drive shaft; 8. Connecting sleeve; 9. Impeller assembly; 10. Lifting surge assembly; 11. Connecting plate; 12. Impeller shaft; 13. Aeration impeller; 14. Guide sleeve; 15. First spring; 16. Guide unit; 17. Rebound control unit; 18. Guide thread; 19. Second spring; 20. Damping. 21. Sliding guide pin, 22. Guide cylinder, 23. First inclined surface, 24. Slide groove, 25. Annular base plate, 26. Guide ring, 27. Second inclined surface, 28. Fixed pile, 29. Self-translation component, 30. Speed ​​adjustment component, 31. Flow guiding component, 32. Rope, 33. Guide wheel, 34. Fixed plate, 35. Adjusting clamp, 36. Adjusting bolt, 37. Mounting ring, 38. Connecting rod, 39. Flow guide cover, 40. Outer flange, 31. Circular hole. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] like Figures 1-15As shown, this invention discloses an automatic aeration device for shrimp farming ponds, comprising a floating mechanism 1, which includes a float plate 4 and a float 5, with the float 5 mounted on the float plate 4. It also includes a wave-inducing aeration mechanism 2 and a non-powered self-translating mechanism 3, both mounted on the floating mechanism 1. The wave-inducing aeration mechanism 2 includes a drive motor 6, a drive shaft 7, a connecting sleeve 8, and an impeller assembly 9. The float 5 has a cavity, and the drive motor 6 is located within the cavity. The bottom of the float plate 4 has a through hole, through which the output shaft of the drive motor 6 passes. The drive shaft 7 is mounted on the output shaft of the drive motor 6. The connecting sleeve... 8 is mounted on the drive shaft 7, and the impeller assembly 9 is mounted on the connecting sleeve 8. The surging wave oxygenation mechanism 2 also includes a lifting surging wave assembly 10. The float 5 is provided with a flow guide assembly 30, which includes a mounting ring 36, a connecting rod 37, and a flow guide shroud 38. The mounting ring 36 is sleeved on the float 5, the connecting rod 37 is mounted on the mounting ring 36, and the flow guide shroud 38 is mounted on the connecting rod 37. The top of the flow guide shroud 38 is provided with an outward flange 39. The impeller assembly 9 includes an impeller shaft 12 and an oxygenation impeller 13. The impeller shaft 12 is mounted on the connecting sleeve 8, and the oxygenation impeller 13 is mounted on the impeller shaft 12. The blades of the oxygenation impeller 13 are provided with round holes 40.

[0042] The lifting surge assembly 10 includes a guide sleeve 14, a first spring 15, a guide unit 16, and a rebound control unit 17. The guide sleeve 14 is located at the bottom of the float 4 and sleeved outside the connecting sleeve 8. The inner wall of the guide sleeve 14 is provided with a guide thread 18. A connecting plate 11 is provided on the drive shaft 7. The first spring 15 is sleeved outside the drive shaft 7 and is located on the connecting plate 11. The connecting sleeve 8 is located on the first spring 15 and is slidably sleeved on the drive shaft 7. The guide unit 16 is located on the connecting sleeve 8 and is slidably located within the guide thread 18. The rebound control unit 17 is located at the bottom of the guide sleeve 14 and cooperates with the guide unit 16. The guide unit 16 includes a second spring 19 and a damping sliding guide pin 20. The connecting sleeve 8 is provided with a groove 23. The second spring 19 is located on the bottom wall of the groove 23. The damping sliding guide pin 20... The guide unit 16 is mounted on the second spring 19 and slidably mounted in the slide groove 23. The damping sliding guide pin 20 is provided with a guide cylinder 21, which is slidably mounted in the guide thread 18. The bottom of the damping sliding guide pin 20 is provided with a first inclined surface 22. The rebound control unit 17 includes an annular base plate 24 and a guide ring 25. The annular base plate 24 is located at the bottom of the guide sleeve 14, and the guide ring 25 is located at the top of the annular base plate 24. The guide ring 25 is provided with a second inclined surface 26 that cooperates with the first inclined surface 22. The guide units 16 are arranged in a ring array with several groups. The guide cylinders 21 on the several groups of guide units 16 are arranged sequentially in the height direction to ensure that the several groups of guide cylinders 21 can slide in the guide thread 18. The first inclined surfaces 22 of the several groups of guide units 16 are at the same horizontal height to ensure that they can contact the second inclined surface 26 at the same time.

[0043] The non-powered self-translation mechanism 3 includes two sets of fixed piles 27 and self-translation components 28. There are two sets of fixed piles 27. The self-translation components 28 include a rope 31 and a guide wheel 32. The guide wheel 32 is sleeved on the float 5. After the rope 31 is wound around the guide wheel 32 once, its two ends are connected to the two sets of fixed piles 27 respectively. The number of self-translation components 28 is not less than two sets. The self-translation components 28 are provided with a speed adjustment component 29. The speed adjustment component 29 includes a fixed plate 33, an adjustment clamp 34 and an adjustment bolt 35. The fixed plate 33 is set on the guide wheel 32, the adjustment clamp 34 is set on the fixed plate 33 and clamps the rope 31. The adjustment bolt 35 is set on the adjustment clamp 34 and is used to adjust the clamping force of the adjustment clamp 34 on the rope 31.

[0044] In practical use, the user needs to first wrap the rope 31 around the guide wheel 32 once, then pass the rope 31 out of the adjusting clamp 34, and connect the two ends of the rope 31 to the two sets of fixed stakes 27 respectively. Then, the user needs to place the aeration device in the aquaculture pond and fix the two sets of fixed stakes 27 to the two banks of the aquaculture pond respectively. Only then can the user use the aeration device to aerate the aquaculture pond.

[0045] During oxygenation, simply start the drive motor 6, which drives the drive shaft 7 to rotate. The drive shaft 7 then drives the connecting sleeve 8 to rotate, which in turn drives the impeller assembly 9 and the guide unit 16 to rotate. The rotation of the oxygenating impeller 13 on the impeller assembly 9 generates surges and bubbles for oxygenation. Simultaneously, during the rotation of the oxygenating impeller 13, it can also alternately perform reciprocating lifting and lowering movements of slow descent and rapid ascent. The rapid ascent of the oxygenating impeller 13 generates a larger surge, resulting in a wider diffusion range of bubbles and improving the oxygenation effect and effective coverage of this oxygenation device. The slow descent of the oxygenating impeller 13 reduces the suppression of the surge effect.

[0046] Specifically, since the guide cylinder 21 slides within the guide thread 18, during the rotation of the guide unit 16, the guide cylinder 21 will slowly move downwards under the guidance of the guide thread 18, thereby causing the damping sliding guide pin 20 to slowly move downwards. The damping sliding guide pin 20 will then cause the connecting sleeve 8 and the impeller assembly 9 to slowly move downwards. When the first inclined surface 22 contacts the second inclined surface 26, as the damping sliding guide pin 20 continues to move downwards, it will slide into the groove 23 under the guidance of the inclined surfaces, passing through the first inclined surface 22 and the second inclined surface 26. When the second spring 19 is compressed, the guide cylinder 21 disengages from the guide thread 18. At this time, under the action of the first spring 15, the connecting sleeve 8 will drive the aerator impeller 13 to move upward rapidly. During the rapid upward movement of the aerator impeller 13, the guide cylinder 21 will rebound towards the side closer to the guide thread 18 under the action of the second spring 19. Due to the damping force between the damping sliding guide pin 20 and the groove 23, the rebound speed is slow. When the connecting sleeve 8 moves to the limit position, the guide cylinder 21 just re-enters the guide thread 18 to start the next round of descending and ascending cycle.

[0047] During the rotation of the aeration impeller 13, the reverse force of water on this aeration device provides the driving force for the floating mechanism 1 to move along the rope 31. This allows the aeration device to achieve the technical purpose of controlling the movement of the aeration device and the technical effect of non-fixed position aeration without setting any walking module. This expands the range of action of a single aeration device, improves the aeration effect of a single aeration device, and reduces the waste of resources and energy.

[0048] During the use of this oxygenation device, its moving speed can be adjusted according to actual needs. During the adjustment process, simply tighten or loosen the adjusting bolt 35 to adjust the clamping force of the adjusting clamp 34 on the rope 31, thereby changing the frictional resistance between the rope 31 and the adjusting clamp 34. When the frictional resistance between the rope 31 and the adjusting clamp 34 increases, the moving speed of this oxygenation device slows down, and vice versa.

[0049] In summary, this solution, through the aerator impeller 13 with circular holes 40, can agitate the water surface, generating more small bubbles and thus increasing the dissolved oxygen content. While the drive motor 6 rotates the aerator impeller 13 to generate bubbles, it also drives the impeller 13 to alternate between slow descent and rapid ascent. The rapid ascent of the aerator impeller 13 creates a surge effect, generating larger waves. This surge allows the bubbles to diffuse over a wider area, thereby improving the aeration effect and expanding the effective coverage area without changing the power of the drive motor 6. The slow descent of the aerator impeller 13 does not affect water overflow and reduces the suppression effect on the surge. This solution achieves aeration through a clever mechanical structure without any electronic feedback or control modules. During its rotation, the oxygen impeller 13 alternates between slow descent and rapid ascent, overcoming technical biases and producing beneficial technical effects. This design utilizes the reverse force of water on the oxygenation device during the rotation of the impeller 13 to provide the driving force for the floating mechanism 1 to move along the rope 31. This allows the oxygenation device to achieve its movement control objectives and non-fixed-position oxygenation effects without any walking modules, expanding the oxygenation range and improving the oxygenation effect. Furthermore, by incorporating a speed adjustment component 29, the design can actively adjust and control the speed of the oxygenation device. Adjustment is achieved simply by tightening or loosening the adjusting bolt 35 to adjust the frictional resistance between the rope 31 and the adjusting clamp 34, thereby controlling the speed of the oxygenation device.

[0050] 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.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic aeration device for a shrimp farming pond, comprising a floating mechanism (1), wherein the floating mechanism (1) comprises a float plate (4) and a float (5), wherein the float (5) is disposed on the float plate (4), characterized in that: It also includes a wave-inducing oxygenation mechanism (2) and a non-powered self-translating mechanism (3). Both the wave-inducing oxygenation mechanism (2) and the non-powered self-translating mechanism (3) are mounted on the floating mechanism (1). The wave-inducing oxygenation mechanism (2) includes a drive motor (6), a drive shaft (7), a connecting sleeve (8), and an impeller assembly (9). The float (5) has a cavity inside, and the drive motor (6) is located inside the cavity. The bottom of the float plate (4) has a through hole, and the output shaft of the drive motor (6) passes through the through hole. The drive shaft (7) is mounted on the output shaft of the drive motor (6). The connecting sleeve (8) is mounted on the drive shaft (7), and the impeller assembly (9) is mounted on the connecting sleeve (8). The wave-inducing oxygenation mechanism (2) also includes a lifting wave-inducing assembly (10). The lifting surge assembly (10) includes a guide sleeve (14), a first spring (15), a guide unit (16), and a rebound control unit (17). The guide sleeve (14) is located at the bottom of the float (4) and sleeved outside the connecting sleeve (8). The inner wall of the guide sleeve (14) is provided with a guide thread (18). The drive shaft (7) is provided with a connecting plate (11). The first spring (15) is sleeved outside the drive shaft (7) and located on the connecting plate (11). The connecting sleeve (8) is located on the first spring (15) and is engaged and slidably sleeved on the drive shaft (7). The guide unit (16) is located on the connecting sleeve (8) and is slidably located inside the guide thread (18). The rebound control unit (17) is located at the bottom of the guide sleeve (14) and cooperates with the guide unit (16). The guide unit (16) includes a second spring (19) and a damping sliding guide pin (20). The connecting sleeve (8) is provided with a groove (23). The second spring (19) is provided on the bottom wall of the groove (23). The damping sliding guide pin (20) is provided on the second spring (19) and is slidably provided in the groove (23). The damping sliding guide pin (20) is provided with a guide cylinder (21). The guide cylinder (21) is slidably provided in the guide thread (18). The bottom of the damping sliding guide pin (20) is provided with a first inclined surface (22). The rebound control unit (17) includes an annular base plate (24) and a guide ring (25). The annular base plate (24) is located at the bottom of the guide sleeve (14), and the guide ring (25) is located at the top of the annular base plate (24). The guide ring (25) is provided with a second inclined surface (26) that cooperates with the first inclined surface (22). The non-powered self-translation mechanism (3) includes two sets of fixed piles (27) and a self-translation component (28). The fixed piles (27) are provided in two sets. The self-translation component (28) includes a rope (31) and a guide wheel (32). The guide wheel (32) is sleeved on the float (5). After the rope (31) is wound around the guide wheel (32) once, its two ends are connected to the two sets of fixed piles (27) respectively.

2. The automatic aeration device for South American shrimp farming ponds according to claim 1, characterized in that: The self-translation component (28) is provided with a speed adjustment component (29). The speed adjustment component (29) includes a fixed plate (33), an adjustment clamp (34), and an adjustment bolt (35). The fixed plate (33) is located on the guide wheel (32). The adjustment clamp (34) is located on the fixed plate (33). The adjustment clamp (34) is clamped on the rope (31). The adjustment bolt (35) is located on the adjustment clamp (34) and is used to adjust the clamping force of the adjustment clamp (34) on the rope (31).

3. The automatic aeration device for South American shrimp farming ponds according to claim 2, characterized in that: The float (5) is provided with a flow guiding assembly (30), which includes a mounting ring (36), a connecting rod (37) and a flow guiding cover (38). The mounting ring (36) is sleeved on the float (5), the connecting rod (37) is provided on the mounting ring (36), and the flow guiding cover (38) is provided on the connecting rod (37). The top of the flow guiding cover (38) is provided with an outward flange (39).

4. The automatic aeration device for South American shrimp farming ponds according to claim 3, characterized in that: The impeller assembly (9) includes an impeller shaft (12) and an oxygenating impeller (13). The impeller shaft (12) is mounted on the connecting sleeve (8), and the oxygenating impeller (13) is mounted on the impeller shaft (12). The blades of the oxygenating impeller (13) are provided with round holes (40).

5. The automatic aeration device for shrimp farming ponds according to claim 4, characterized in that: The guide unit (16) is arranged in a ring array with several groups of guide cylinders (21) arranged sequentially in the height direction to ensure that the guide cylinders (21) can slide in the guide thread (18). The first inclined surface (22) of the several groups of guide units (16) is at the same horizontal height to ensure that it can contact the second inclined surface (26) at the same time.

6. The automatic aeration device for South American shrimp farming ponds according to claim 5, characterized in that: The number of self-translation components (28) is no less than two sets.

Images