An oxygenation device for penaeus vannamei pond culture

Abstract

The utility model relates to an oxygenation device for South American white prawn pond culture, and aims at solving the problems of high energy consumption, limited applicable area of the existing electric power oxygenation machine, and single function, and the inability to effectively break the water layering of the traditional mechanical oxygenation device. The utility model includes mounting mechanism, transmission rod and the transmission mechanism, linkage mechanism and oxygenation auger arranged from top to bottom. The wind wheel of transmission mechanism captures wind energy to drive the rotation of transmission rod; the floating platform and water deflector of linkage mechanism float with water level and carry out water surface aeration, which realizes power transmission and self -adaptation lifting through the linkage of limiting boss and sliding groove structure and transmission rod; the oxygenation auger at the bottom agitates bottom water body to form vertical flow. Its core advantage lies in that single wind energy is simultaneously converted into two oxygenation modes of surface water deflection and bottom water lifting through pure mechanical structure, realizes zero -energy -consumption three -dimensional oxygenation of whole water area, effectively overcomes water layering, and significantly improves oxygenation efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of pond aquaculture technology for Litopenaeus vannamei, specifically to an oxygenation device for pond aquaculture of Litopenaeus vannamei. Background Technology

[0002] Traditional water aeration technologies, especially for still or slow-flowing water bodies such as ponds and reservoirs, widely rely on electrically driven impeller, paddlewheel, or aeration aerators. These devices use an electric motor to drive an underwater impeller at high speed, agitating the water to achieve gas-liquid exchange, or using an air compressor to force air into the water to form bubbles. While their aeration effect is significant, their application has obvious limitations. First, these technologies continuously consume electricity, resulting in high long-term operating costs and increasing the economic burden on aquaculture or water treatment. Second, their installation and operation heavily rely on fixed power grids or expensive fuel generators, significantly reducing their applicability in remote areas, power-free zones, or emergency scenarios. Furthermore, the long-term immersion of underwater motors and transmission components makes them susceptible to corrosion and high failure rates, leading to complex and costly maintenance. Therefore, developing an oxygenation technology that does not rely on external power and has low operating costs has become an important direction for advancement in this field. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an oxygenation device for pond culture of Litopenaeus vannamei. Through a purely mechanical linkage structure, wind energy is simultaneously converted into two types of power: surface agitation and bottom water lifting. This solves the core problem of insufficient dissolved oxygen on the surface and oxygen-deficient stratification in the bottom water, which is common in still water ponds, with zero power consumption.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oxygenation device for pond culture of Litopenaeus vannamei, comprising an installation mechanism for installation, a transmission rod rotatably connected to the installation mechanism, a transmission mechanism for transmission at the top of the transmission rod, a linkage mechanism at the middle of the transmission rod, and an oxygenation auger at the bottom.

[0005] Furthermore, the mounting mechanism includes a mounting rod, one end of which is provided with a connecting seat for mounting, and the other end is provided with a mounting ring. The mounting ring is sleeved on the outside of the transmission rod and forms a rotatable connection with the transmission rod.

[0006] Furthermore, the transmission mechanism includes a mounting plate fixedly installed on the top of the transmission rod, and at least three mounting posts are arranged in a circular array on the mounting plate, with transmission fan blades mounted on the mounting posts.

[0007] Furthermore, the linkage mechanism includes a floating platform, and multiple oxygenation components are arranged at equal angles on the outer periphery of the floating platform; The oxygenation component includes blades and propeller rods. Multiple propeller rods are fixedly mounted on the floating platform, and each of their other ends is fixedly connected to a mounting sleeve, which is rotatably connected to the transmission rod through the mounting sleeve.

[0008] Furthermore, the mounting sleeve is provided with a limiting boss, and the transmission rod is provided with a sliding groove that matches the limiting boss, so as to enable the mounting sleeve to rotate in the horizontal direction and adjust its position in the vertical direction.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects: I. This oxygenation device for Litopenaeus vannamei pond aquaculture integrates three major functions: wind power drive, surface agitation, and bottom water lifting. The top transmission mechanism converts wind energy into mechanical energy, while the central linkage mechanism aerates the surface water as it floats with the water level, effectively increasing dissolved oxygen in the surface layer. The bottom aeration auger powerfully stirs the bottom water, breaking up the stratification of dissolved oxygen and temperature. This "top-down" collaborative working mechanism overcomes the shortcomings of single surface aeration devices, achieving three-dimensional oxygenation throughout the entire water area from the surface to the bottom, with zero energy consumption and zero emissions throughout the entire process, greatly reducing the energy costs of high-density Litopenaeus vannamei aquaculture.

[0010] II. This oxygenation device for Litopenaeus vannamei pond aquaculture ensures the stability of the transmission core through a rotating connection design between the mounting mechanism and the transmission rod. In particular, the unique design of the "limiting boss and sliding groove" in the linkage mechanism cleverly transmits the rotational power of the transmission rod to the water-dispelling components, while allowing the floating platform assembly to rise and fall freely with the water level. This perfectly solves the problems of jamming, wear, or structural damage caused by water level changes in traditional fixed devices. This adaptive structure enables the device to operate stably for a long time in various complex aquatic environments, reducing maintenance needs and extending its service life. It is especially suitable for widespread application in outdoor aquaculture ponds with variable operating conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of the linkage mechanism of this utility model.

[0012] In the diagram: 1. Installation mechanism; 11. Installation rod; 12. Connecting seat; 13. Installation ring; 2. Transmission rod; 3. Transmission mechanism; 31. Installation plate; 32. Installation column; 33. Transmission fan blade; 4. Linkage mechanism; 41. Floating platform; 42. Aeration component; 43. Installation sleeve; 44. Limiting boss; 5. Aeration auger. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] As attached Figure 1-4 As shown, this utility model provides an oxygenation device for pond aquaculture of Litopenaeus vannamei. Its core design lies in achieving efficient and energy-saving full-body oxygenation without the need for external electricity through wind power drive and mechanical linkage. The device mainly includes an installation mechanism 1, a transmission rod 2, a transmission mechanism 3, a linkage mechanism 4, and an oxygenation auger 5.

[0015] The installation mechanism 1 is used to securely install the entire device in the pond. Specifically, the mechanism includes a vertical installation rod 11, the bottom of which is welded or bolted to a connecting seat 12. The connecting seat 12 can be fixed to the bottom of the pond or the bank by ground stakes or counterweights. The top of the installation rod 11 is provided with an installation ring 13, which is sleeved on the outside of the transmission rod 2 by a deep groove ball bearing or a sliding bearing, allowing the transmission rod 2 to rotate smoothly within the installation ring 13 while being confined to the vertical axis to prevent violent shaking.

[0016] The transmission rod 2 serves as the power transmission hub of the entire device, running through the entire device. Its top is fixedly connected to the transmission mechanism 3, its middle part is connected to the linkage mechanism 4, and its bottom directly drives the oxygenation auger 5.

[0017] The transmission mechanism 3 serves as a power source for capturing wind energy. It includes a mounting plate 31 fixedly mounted on the top of the transmission rod 2. At least three mounting posts 32 are evenly welded along the circumferential direction along the edge of the mounting plate 31. Each mounting post 32 has a drive blade 33 mounted on it via a bearing or bushing. When natural wind blows, the drive blade 33 rotates, which in turn drives the entire transmission rod 2 to rotate via the mounting plate 31. This circumferential array design of multiple blades ensures that wind from any horizontal direction can effectively drive the device, improving energy capture efficiency.

[0018] The linkage mechanism 4 is one of the key innovations of this utility model, simultaneously realizing the two functions of water surface aeration and power transmission. This mechanism includes a floating platform 41, typically made of lightweight buoyancy materials such as foam plastic, which allows the central part of the device to float on the water surface and automatically rise and fall with changes in water level. Multiple aeration components 42 are arranged at equal angles around the center of the floating platform 41. Each aeration component 42 includes a propeller and a blade fixed to the end of the propeller. The inner ends of the multiple propellers are fixedly connected to a mounting sleeve 43, which is then rotatably connected to the transmission rod 2 via bearings or bushings.

[0019] To adapt to fluctuations in pond water levels and ensure the stability of the transmission chain, this invention optimizes the connection between the linkage mechanism 4 and the transmission rod 2: a ring-shaped limiting boss 44 is provided on the inner wall of the mounting sleeve 43. Correspondingly, a vertical groove is provided on the transmission rod 2 at the position where it mates with the mounting sleeve 43. The limiting boss 44 is embedded in the groove. This structure allows the mounting sleeve 43 and the entire connected float 41 and aerator 42 assembly to slide freely in the vertical direction along the transmission rod 2 to adapt to water level fluctuations. At the same time, due to the circumferential limiting effect of the groove on the limiting boss, when the transmission rod 2 is driven to rotate by the top transmission mechanism 3, the rotational force can be transmitted to the limiting boss 44 through the side of the groove, thereby driving the mounting sleeve 43 and the aerator 42 to rotate horizontally together, achieving reliable power transmission.

[0020] The aerator auger 5 is fixedly installed at the bottom of the transmission rod 2, with its blades submerged in the lower layer of water in the pond. When the transmission rod 2 rotates, the aerator auger 5 rotates accordingly, and its spiral blades generate a strong downward or upward water flow (depending on the direction of blade rotation). Preferably, it is configured to generate an upward water-lifting flow field, which can lift the algae-rich but oxygen-deficient middle and lower layers of water to the oxygen-rich surface layer, while simultaneously pushing the oxygen-rich surface water to the bottom of the pond, completely breaking down the stratification of water temperature and dissolved oxygen, and achieving vertical circulation of the pond water.

[0021] Working process: Natural wind blows the top drive blades 33, which in turn drive the drive rod 2 to rotate. The rotating drive rod 2 drives the aerator 42 in the middle to rotate, and the blades stir the water surface to create splashes, thus performing surface aeration and oxygenation. On the other hand, the rotating drive rod 2 drives the bottom aerator auger 5 to work, forming a vertical flow to achieve bottom aeration and circulation of the water. The entire process requires no electricity and is entirely driven by wind power.

[0022] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oxygenation device for pond culture of Litopenaeus vannamei, characterized in that: It includes an installation mechanism (1) for installation, a transmission rod (2) is rotatably connected to the installation mechanism (1), a transmission mechanism (3) for transmission is provided at the top of the transmission rod (2), a linkage mechanism (4) is provided in the middle of the transmission rod (2), and an oxygenation auger (5) is provided at its bottom.

2. An oxygenation device for pond culture of Litopenaeus vannamei according to claim 1, characterized in that: The installation mechanism (1) includes an installation rod (11), one end of which is provided with a connecting seat (12) for installation, and the other end is provided with an installation ring (13). The installation ring (13) is sleeved on the outside of the transmission rod (2) and forms a rotatable connection with the transmission rod (2).

3. An oxygenation device for pond culture of Litopenaeus vannamei according to claim 1, characterized in that: The transmission mechanism (3) includes a mounting plate (31) fixedly mounted on the top of the transmission rod (2), and at least three mounting posts (32) are arranged along its circumference on the mounting plate (31), and transmission fan blades (33) are mounted on the mounting posts (32).

4. An oxygenation device for pond culture of Litopenaeus vannamei according to claim 1, characterized in that: The linkage mechanism (4) includes a floating platform (41), and multiple oxygenation components (42) are provided at equal angles on the outer periphery of the floating platform (41). The oxygenation component (42) includes blades and propellers. Multiple propellers are fixedly mounted on the floating platform (41) and their other ends are fixedly connected to mounting sleeves (43). The propellers are rotatably connected to the transmission rod (2) through the mounting sleeves (43).

5. An oxygenation device for pond culture of Litopenaeus vannamei according to claim 4, characterized in that: The mounting sleeve (43) is also provided with a limiting boss (44), and the transmission rod (2) is provided with a sliding groove that matches the limiting boss (44) to enable the mounting sleeve (43) to rotate in the horizontal direction and adjust its position in the vertical direction.

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