Wave energy oyster polishing ecological aquaculture device

By using a wave energy-driven device to actively rotate the net cage, the problems of swaying in harsh sea conditions and still water environments have been solved, enabling efficient growth and quality improvement of shellfish.

CN224368750UActive Publication Date: 2026-06-19CHANGHAI COUNTY JUYI XINHAI TREASURES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGHAI COUNTY JUYI XINHAI TREASURES CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional net cages are prone to swaying or capsizing in rough sea conditions, which can cause damage or escape of shellfish. Furthermore, they cannot simulate natural water currents when the sea is calm, which affects the growth and feeding efficiency of shellfish.

Method used

By employing a wave-driven device and a cage structure design, the cage can rotate actively under conditions of fewer waves, utilizing wave energy for abrasion, promoting water exchange, and increasing dissolved oxygen levels.

Benefits of technology

Rotational motion can improve the quality of shellfish, enhance the aquaculture environment, and increase the growth rate and quality of finished products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of wave energy shell polishing ecological aquaculture device, belong to the field of marine product cultivation technology. Including the support of being fixed in the two sides of offshore platform, one of the support is equipped with driving mechanism, driving side transmission and driven side transmission are respectively installed on two supports, the other end of driving side transmission and driven side transmission is connected with net cage, driving mechanism is rotated with net cage by driving side transmission drive. The utility model aims to make net cage can automatically rotate under the condition of less sea wave and stillness by driving device and net cage structure design, so that marine product in net cage interior also moves along with the rotation of net cage, and utilize the power of wave to polish shellfish product, so that its quality is higher.
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Description

Technical Field

[0001] This utility model relates to a wave energy shellfish grinding ecological aquaculture device, belonging to the field of marine product aquaculture technology. Background Technology

[0002] With the increasing demand for seafood, my country's aquaculture industry is developing rapidly, especially shellfish farming, which relies heavily on net cages. However, the traditional fixed structure and passive rotation of net cages in marine shellfish farming are no longer sufficient to meet the demands of modern aquaculture. Currently, net cages are typically fixed to the seabed by steel cables or anchoring devices, and their rotation depends entirely on natural forces such as waves and tides. However, this design has significant drawbacks: firstly, in harsh sea conditions, net cages are prone to violent shaking or even capsizing due to external impacts, causing damage to shellfish or their escape, resulting in economic losses; secondly, in calm sea conditions, net cages remain stationary due to a lack of continuous power input, failing to simulate the natural water flow environment, leading to reduced feeding efficiency and accumulation of deposits on the shell surface, severely impacting growth rate and product quality.

[0003] Studies have shown that shellfish can naturally polish themselves through friction between their shells and the water flow under moderate water currents, thereby enhancing their commercial value (such as the luster of oysters and the closing force of scallops). However, the passive rotation mechanism of traditional net cages is only effective within a specific wave intensity range. When wave energy is insufficient (such as in shallow nearshore waters or during summer slack seasons), shellfish are often in a still water environment, which can easily lead to problems such as stunted growth and frequent diseases. Therefore, we have made improvements and proposed a wave-energy shellfish polishing ecological aquaculture device. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a wave-powered shellfish polishing ecological aquaculture device. Through a drive device and net cage structure design, the net cage can automatically rotate under conditions of minimal waves and stillness. This causes the seafood inside the net cage to move with the rotation, utilizing the force of the waves to polish the shellfish, resulting in higher quality. Simultaneously, the rotational motion promotes water exchange, increases dissolved oxygen levels, and improves the aquaculture environment.

[0005] The technical solution adopted in this utility model is a wave energy shellfish grinding ecological aquaculture device, which includes two supports. One of the supports is equipped with a drive mechanism. An active side transmission device and a driven side transmission device are respectively installed on the two supports. The other end of the active side transmission device and the driven side transmission device are connected to the net cage. The drive mechanism drives the net cage to rotate through the active side transmission device.

[0006] As a further embodiment of this utility model, the drive mechanism includes a drive motor mounted on a bracket via a fixed frame, and the output end of the drive motor is connected to the active side transmission device.

[0007] As a further embodiment of this utility model, the active side transmission device includes a connecting frame and a gear transmission assembly. The connecting frame is provided with a transmission rod, and the gear transmission assembly is installed at both ends of the connecting frame and connected to the transmission rod.

[0008] As a further embodiment of this utility model, the gear transmission assembly includes a cover, a transmission shaft, a first bevel gear, a second bevel gear, and a transmission bearing. The transmission shaft passes through the cover, the transmission bearing is sleeved on the outer circumference of the transmission shaft, the first bevel gear is sleeved on the outer circumference of the transmission shaft, and the second bevel gear is sleeved on the transmission rod. The first bevel gear and the second bevel gear mesh and transmit power.

[0009] As a further embodiment of this utility model, the driven-side transmission device includes a mounting frame, a connecting member, a driven bearing, an end cover, and a rotating shaft, wherein the connecting member is fixed to one end of the mounting frame, the rotating shaft passes through the connecting member, the driven bearing is sleeved on the outer circumference of the rotating shaft, and the end cover is pressed onto the driven bearing.

[0010] As a further embodiment of this utility model, the drive shaft is provided with a sprocket, and adjacent sprockets are driven by a chain.

[0011] As a further embodiment of this utility model, the net cage includes a frame, a net, a support shaft, and a partition. The partition is installed inside the frame and divides the frame into several breeding spaces. The net is fixed to the outer periphery of the frame. The support shaft passes through the axis of the frame. Under the action of force, the net cage can rotate around the support shaft.

[0012] This utility model discloses a wave energy shellfish grinding ecological aquaculture device, which has the following beneficial effects compared with the prior art: due to the rotational motion, the exchange of water inside and outside is improved, increasing dissolved oxygen and supply efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the application of this utility model in the sea;

[0016] Figure 3 yes Figure 2 Mid-top view;

[0017] Figure 4 yes Figure 2 Mid-side view diagram;

[0018] Figure 5 This is a schematic diagram of the active side drive mechanism;

[0019] Figure 6 This is a schematic diagram of the driven-side transmission device;

[0020] Figure 7 This is a partial schematic diagram of the wire mesh cage.

[0021] As shown in the figure:

[0022] 1. Support frame; 2. Active side drive device; 3. Driven side drive device; 4. Net cage; 5. Offshore platform; 10. Fixing frame; 11. Drive motor; 20. Connecting frame; 21. Drive rod; 22. Cover; 23. Drive shaft; 24. First bevel gear; 25. Second bevel gear; 26. Drive bearing; 27. Sprocket; 28. Chain; 30. Mounting frame; 31. Connector; 32. Driven bearing; 33. End cap; 34. Rotating shaft; 40. Frame; 41. Netting; 42. Support shaft; 43. Partition. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] To further understand the utility model content of this utility model, the technical solution will be further described below in conjunction with specific embodiments.

[0025] Example 1: As Figures 1-7 As shown, this embodiment provides a wave energy shellfish grinding ecological aquaculture device, including brackets 1 fixed on both sides of an offshore platform 5. One of the brackets 1 is equipped with a drive mechanism. An active side transmission device 2 and a driven side transmission device 3 are respectively installed on the two brackets 1. The other ends of the active side transmission device 2 and the driven side transmission device 3 are connected to a net cage 4. The drive mechanism drives the net cage 4 to rotate through the active side transmission device 2.

[0026] In one specific embodiment of this invention, the active-side transmission device 2 includes a connecting frame 20 and a gear transmission assembly. A transmission rod 21 is housed within the connecting frame 20, and the gear transmission assembly is installed at both ends of the connecting frame 20 and connected to the transmission rod 21. The gear transmission assembly includes a cover 22, a transmission shaft 23, a first bevel gear 24, a second bevel gear 25, and a transmission bearing 26. The transmission shaft 23 passes through the cover 22, the transmission bearing 26 is sleeved on the outer circumference of the transmission shaft 23, the first bevel gear 24 is sleeved on the outer circumference of the transmission shaft 23, and the second bevel gear 25 is sleeved on the transmission rod 21. The first bevel gear 24 and the second bevel gear 25 mesh and transmit power.

[0027] As a specific implementation of this embodiment, the driven side transmission device 3 includes a mounting frame 30, a connector 31, a driven bearing 32, an end cover 33, and a rotating shaft 34. The connector 31 is fixed to one end of the mounting frame 30, the rotating shaft 34 passes through the connector 31, the driven bearing 32 is sleeved on the outer circumference of the rotating shaft 34, and the end cover 33 is pressed onto the driven bearing 32.

[0028] In one specific embodiment of this invention, the net cage 4 includes a frame 40, a net 41, a support shaft 42, and a partition 43. The partition 43 is installed inside the frame 40 and divides the frame 40 into several breeding spaces. The net 41 is fixed to the outer periphery of the frame 40. The support shaft 42 passes through the axis of the frame 40, and under the action of force, the net cage 4 can rotate around the support shaft 42. One of the drive shafts 23 of the active side transmission device 2 and one of the rotating shafts 34 of the driven side transmission device 3 are respectively connected to the two ends of the support shaft 42.

[0029] The drive mechanism controls the rotation of the transmission shaft 23, which in turn drives the first bevel gear 24 and the second bevel gear 25 to rotate. The second bevel gear 25 transmits power to the transmission shaft 23 through the transmission rod 21. The transmission shaft 23 is connected to the net cage 4, so that the net cage 4 rotates around the support shaft 42.

[0030] Example 2: As Figures 1-7 As shown, based on Embodiment 1, as a specific implementation of this embodiment, the driving mechanism includes a drive motor 11 mounted on a bracket 1 via a fixing frame 10. The output end of the drive motor 11 is connected to the transmission shaft 23 of the active side transmission device 2. The transmission shaft 23 is equipped with sprockets 27, and adjacent sprockets 27 are driven by chains 28. This allows one drive motor 11 to drive several mesh cages 4 to rotate.

[0031] like Figures 1-7As shown, taking Example 2 as an example, the seafood in the net cage 4 is scallops. The active side transmission device 2 and the driven side transmission device 3 are respectively installed on the bracket 1. The rotating shaft 34 of the driven side transmission device 3 is concentric with the transmission shaft 23 of the active side transmission device 2. The support shafts 42 on both sides of the net cage 4 are respectively fixed on the transmission shaft 23 of the active side transmission device and the rotating shaft 34 of the driven side transmission device 3. The upper transmission shaft 23 of the active side transmission device 2 is equipped with a sprocket 27. Adjacent sprockets 27 are alternately connected by chains 28. In this way, a drive motor 11 can be used to drive the transmission shaft 23 to rotate, thereby driving the net cage 4 to rotate. This allows the rotation of the net cage 4 to be controlled when the seawater waves are small, making the quality of the shellfish more controllable. The mechanical control of the movement of the net cage 4 and the scouring of the waves will further improve the quality of the shellfish.

[0032] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wave-energy shellfish grinding ecological aquaculture device, characterized in that, It includes two supports (1), one of which is equipped with a drive mechanism. The active side transmission device (2) and the driven side transmission device (3) are respectively installed on the two supports (1). The other end of the active side transmission device (2) and the driven side transmission device (3) are connected to the net cage (4). The drive mechanism drives the net cage (4) to rotate through the active side transmission device (2).

2. A wave energy oyster polishing eco-culture device according to claim 1, characterized in that, The drive mechanism includes a drive motor (11) mounted on a bracket (1) via a fixed frame (10), and the output end of the drive motor (11) is connected to the active side transmission device (2).

3. The wave energy oyster polishing ecological aquaculture device according to claim 1, characterized in that, The active side transmission device (2) includes a connecting frame (20) and a gear transmission assembly. The connecting frame (20) is provided with a transmission rod (21). The gear transmission assembly is installed at both ends of the connecting frame (20) and connected to the transmission rod (21).

4. A wave energy oyster gritting eco-nursery device according to claim 3, characterised in that, The gear transmission assembly includes a cover (22), a transmission shaft (23), a first bevel gear (24), a second bevel gear (25), and a transmission bearing (26). The transmission shaft (23) passes through the cover (22), the transmission bearing (26) is sleeved on the outer circumference of the transmission shaft (23), the first bevel gear (24) is sleeved on the outer circumference of the transmission shaft (23), and the second bevel gear (25) is sleeved on the transmission rod (21). The first bevel gear (24) and the second bevel gear (25) mesh and transmit power.

5. The wave energy oyster polishing eco-culture device according to claim 1, characterized in that, The driven-side transmission device (3) includes a mounting bracket (30), a connector (31), a driven bearing (32), an end cover (33), and a rotating shaft (34). The connector (31) is fixed to one end of the mounting bracket (30), the rotating shaft (34) passes through the connector (31), the driven bearing (32) is sleeved on the outer circumference of the rotating shaft (34), and the end cover (33) is pressed onto the driven bearing (32).

6. The wave energy shellfish grinding ecological aquaculture device according to claim 4, characterized in that, A sprocket (27) is provided on the drive shaft (23), and adjacent sprockets (27) are driven by a chain (28).

7. A wave energy oyster polishing eco-culture device according to claim 1, characterized in that, The net cage (4) includes a frame (40), a net (41), a support shaft (42), and a partition (43). The partition (43) is installed inside the frame (40) and divides the frame (40) into several breeding spaces. The net (41) is fixed to the outer periphery of the frame (40). The support shaft (42) passes through the axis of the frame (40). Under the action of force, the net cage (4) can rotate around the support shaft (42).