A fish hiding device in rice paddy fish farming

Abstract

This utility model relates to the technical field of aquaculture, specifically to a fish hiding device for rice-fish farming. It includes a horizontally arranged mounting plate with multiple sets of guide grooves evenly spaced on its top surface. Limiting components are movably installed within these guide grooves. Lifting lugs are located on the top surface of the mounting plate, distributed among the guide grooves. Counterweight components are located at both ends of the mounting plate, each including a mounting base fixedly connected to the bottom of the mounting plate. The position of the limiting components is adjustable through the sliding cooperation between the guide grooves on the top of the mounting plate and the inverted "L"-shaped guide frame. This allows users to flexibly adjust the spacing between bamboo tubes according to their actual size, providing strong versatility and adaptability to bamboo tubes of different diameters, ensuring the device's adaptability to various aquaculture needs. An arc-shaped, raised stainless steel limiting plate is used, with a similarly arc-shaped EPDM rubber layer fixed to its top surface, together forming a bamboo tube clamping mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of aquaculture, specifically to a fish hiding device used in rice-fish farming. Background Technology

[0002] In rice paddy ecological agriculture, waterfowl farming (such as ducks and geese) is further integrated into the traditional rice-fish farming, forming a "three-water model" that coordinates rice, aquaculture, and waterfowl. This model not only continues the advantages of "dual use of water and double harvest from one field," but also achieves ecological cycle upgrading through waterfowl manure fertilization and waterfowl activities for pest and weed control, significantly improving the economic and ecological benefits per unit area. It has become a key agricultural model promoted in many places. In the "Three-Water Model," the stress factors faced by fish are more complex than in a single fish farming scenario: in addition to traditional threats from natural enemies (such as birds and rodents), water temperature changes, and agricultural operations (drying fields, fertilizing, and applying pesticides), the daily activities of waterfowl (swimming, pecking, and trampling) can directly interfere with fish habitats and may even cause physical damage to fish. Therefore, providing fish with safe and stable hiding places has become the core requirement for ensuring fish survival rates and maintaining the ecological balance and aquaculture benefits of the "Three-Water Model." Currently, the industry still commonly uses natural materials such as clay pots, bamboo tubes, and bundles of branches to create hiding spaces for fish in paddy fields. While this method is low-cost, it has significant limitations under the "three-water model": First, the materials are scattered and cannot form unified, efficient hiding units, making it difficult to manage fish groups and potentially obstructing waterfowl movement, thus affecting waterfowl farming operations. Second, the materials have poor stability; in addition to being affected by water flow and fish activity, the trampling and swimming impacts of waterfowl can easily cause the materials to shift or overturn, directly rendering them useless for shelter. Third, material recovery and replacement require cleaning each piece individually, which is not only time-consuming and labor-intensive but may also disturb waterfowl during the process, disrupting the ecological balance of the paddy fields and failing to meet the farming needs under the "three-water model." Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a fish hiding device for rice-fish farming, which can solve the following problems: It avoids problems such as unstable material fixation, easy displacement and failure, insufficient stability in water, easy overturning, and inconvenience in adjustment.

[0004] To solve the above-mentioned technical problems, the present invention proposes the following technical solution: A fish hiding device for rice-fish farming includes a horizontally arranged mounting plate. Multiple sets of guide grooves are equidistantly opened on the top surface of the mounting plate. Limiting components are movably arranged in the guide grooves. Lifting lugs are provided on the top surface of the mounting plate and distributed between the multiple sets of guide grooves. Counterweight components are provided at the bottom of both ends of the mounting plate. The counterweight assembly includes a mounting base fixedly connected to the bottom of the mounting plate, and a counterweight column extending vertically downward is detachably connected to the mounting base; The limiting assembly includes a guide frame and a limiting plate. The guide frame slides in conjunction with the guide groove, the limiting plate is fixed to the bottom of the guide frame, and a limiting layer is fixedly connected to the top surface of the limiting plate.

[0005] Furthermore, the mounting plate has multiple independent strip-shaped sponge layers on the bottom surface corresponding to the limiting plate, and the mounting plate is a stainless steel plate with internal weight reduction holes.

[0006] Furthermore, the lifting lugs and the top surface of the mounting plate are rotatably connected via heavy-duty stainless steel swivels.

[0007] Furthermore, the guide frame is arranged in an inverted "L" shape. The vertical section has arc-shaped guide grooves on both sides that cooperate with the guide strips on the inner wall of the guide groove. The top horizontal section has rectangular extension support plates with threaded holes on both sides. Guide strips are provided on the inner walls of both sides of the guide groove.

[0008] Furthermore, the limiting plate is a stainless steel plate with an arc-shaped protrusion, and the limiting layer is a EPDM rubber layer that matches the shape of the top surface of the limiting plate.

[0009] Furthermore, the mounting base is a stainless steel spherical base with a threaded inner connecting seat protruding from its inner bottom surface. The bottom end of the counterweight column is threadedly connected to the inner connecting seat, and an O-ring sealing groove is provided at the threaded connection.

[0010] Furthermore, the counterweight column is a hollow HDPE shell filled with counterweight material, sealed at both ends by end caps, and has an internally threaded metal part pre-embedded at the top to mate with the connecting seat inside the mounting base.

[0011] Furthermore, the counterweight material is concrete.

[0012] As can be seen from the above technical solution, the beneficial effects of this utility model are: This invention achieves adjustable position of the limiting component through the sliding cooperation between the guide groove set on the top of the mounting plate and the inverted "L"-shaped guide frame. This allows users to flexibly adjust the spacing between the bamboo tubes according to their actual size. It is highly versatile and can be adapted to bamboo tubes of different diameters, ensuring the device's adaptability to different aquaculture needs.

[0013] This utility model uses an arc-shaped protruding stainless steel limiting plate, and fixes an EPDM rubber layer with the same arc shape on its top surface. Together, they form a clamping mechanism for the bamboo tube. In actual use, the stainless steel plate provides solid support, while the soft EPDM rubber layer can increase the friction with the inner wall of the bamboo tube and avoid hard contact that could scratch or damage the bamboo tube, thus achieving a reliable fixation that combines flexibility and rigidity.

[0014] This invention features an independent sponge strip at the contact point between the bottom of the mounting plate and the bamboo tube, rather than covering the entire surface. In actual use, after the device is submerged in water, the sponge strip absorbs water and expands, generating a downward expansion force that further compresses the bamboo tube from above. This, combined with the fixing layer from below, creates an "inner and outer clamping" effect, providing double protection and greatly enhancing the stability of the bamboo tube in dynamic water environments, preventing it from falling off.

[0015] In this invention, the counterweight column adopts a structure with a hollow HDPE shell filled with concrete, and is connected to a stainless steel spherical mounting base through coarse thread. An O-ring is provided at the connection. This modular design facilitates transportation and replacement, and the low center of gravity of the counterweight provides excellent device stability and prevents tipping.

[0016] In this invention, the lifting lug and the mounting plate are connected by a swivel rather than a fixed connection. When lifting and retrieving the device, the swivel can prevent the traction rope from getting tangled, ensuring that the force is always even and vertical, making the operation more labor-saving, safe, and convenient.

[0017] In this invention, the mounting plate is made of stainless steel and has large weight-reducing holes. While ensuring the overall structural strength and rigidity, the weight of the device is significantly reduced, making it easy to operate quickly and effectively reducing water flow resistance. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a front view of the connection of the limiting component in this utility model; Figure 3 This is a front view of the counterweight component connection in this utility model; Figure 4 This is a schematic diagram of the connection of the limiting component in this utility model.

[0020] Figure label: 1. Mounting plate; 2. Guide groove; 3. Limiting component; 4. Lifting lug; 5. Counterweight component; 6. Guide frame; 7. Limiting plate; 8. Counterweight column; 9. Mounting base; 10. Limiting layer. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0022] See Figure 1-4 As shown, a fish hiding device in rice paddy fish farming includes a horizontally arranged mounting plate 1. Multiple sets of guide grooves 2 are equally spaced on the top surface of the mounting plate 1. Limiting components 3 are embedded in the guide grooves 2. Lifting lugs 4 are rotatably connected to the top surface of the mounting plate 1. The lifting lugs 4 are distributed between the multiple sets of guide grooves 2. Counterweight components 5 are fixedly connected to the bottom of both ends of the mounting plate 1. The counterweight assembly 5 includes a mounting base 9 that is fixedly connected to the bottom of the mounting plate 1, and a vertical counterweight column 8 that protrudes from the mounting plate 1 is embedded in the mounting base 9. The limiting component 3 includes a guide frame 6 and a limiting plate 7 that are fixedly connected, and a limiting layer 10 is fixedly connected to the top surface of the limiting plate 7.

[0023] In this embodiment of the utility model, the mounting plate 1 is laid flat in the shape of a rectangular plate, and the bottom surface of the corresponding limiting plate 7 is provided with multiple independent strip sponge layers. The top surface is provided with insertion holes corresponding to the mounting base 9. The guide groove 2 is opened in the shape of a horizontal rectangular groove along the top surface of the mounting plate 1, and the inner walls on both sides are provided with arc-shaped protruding guide strips. The strip sponge layer is set as an open-cell polyurethane soft foam layer. The mounting plate 1 is a stainless steel plate with a large weight reduction hole inside. The weight reduction hole is set to avoid the connection position of the guide groove (2) and the lifting lug (4). The lifting lug 4 and the top surface of the mounting plate 1 are rotatably connected by a heavy-duty stainless steel swivel ring.

[0024] The guide frame 6 is arranged in an inverted "L" shape. The vertical section has arc-shaped guide grooves on both sides of the guide groove 2, corresponding to the guide strips on both sides of the inner wall. The top horizontal section of the guide frame 6 is also connected to two sets of rectangular extension support plates. Threaded holes are opened on the surface of the support plates. The limiting plate 7 is made of stainless steel and is arranged in a horizontal arc-shaped protrusion. The limiting layer 10 is made of EPDM rubber and is also arranged in an arc-shaped protrusion along the top surface of the limiting plate 7.

[0025] Mounting base 9 is a stainless steel spherical base with a threaded inner connecting seat protruding from its inner bottom surface. The bottom end of counterweight column 8 is threaded to the threaded inner connecting seat. The threaded connection between the inner connecting seat and the counterweight column 8 is a coarse thread, and an O-ring sealing groove is provided at the threaded connection. The counterweight column 8 is a hollow HDPE shell with a reserved space inside filled with concrete. Both ends are sealed by end caps, and the top has an internally threaded metal part that connects to mounting base 9.

[0026] When using this device, the outer half of the bamboo tube is horizontally embedded between the limiting component 3 and the mounting plate 1. The limiting plate 7, which is set in an arc shape, fits against the upper arc-shaped inner wall of the bamboo tube. Together with the limiting layer 10, it limits the bamboo tube. Then, the user slides the limiting component 3 along the guide groove 2 to drive the bamboo tube to adjust its position below the mounting base 1, ensuring the spacing between each bamboo tube. The guide frame 6 is fixed to the top surface of the mounting plate 1 by external butterfly bolts, thus completing the installation and fixing of the entire limiting assembly 3. After that, the user inserts the counterweight column 8 into the mounting base 9 through the insertion hole on the surface of the mounting plate 1, so that it is fixed in the mounting base 9. After installing multiple bamboo tubes in sequence, the entire device is placed in the water. At this time, the bamboo tubes are upside down, and their bottom surfaces form a space for fish to hide. Users can connect external wires or hooks to the lifting lugs in advance. After the entire device is placed in the water, the connected external wires or hooks are fixed to the shore to facilitate the subsequent removal of the entire device. After the entire device is placed in water, the sponge layer on the bottom of the mounting plate 1, which is positioned corresponding to the limiting plate 7, absorbs water and expands, thus cooperating with the limiting layer 10 from above to achieve internal and external limiting and fixing of the bamboo tube.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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. 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, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A fish hiding device for rice-fish farming, characterized in that: The mounting plate (1) is arranged horizontally. Multiple guide grooves (2) are equidistantly opened on the top surface of the mounting plate (1). Limiting components (3) are movably arranged in the guide grooves (2). Lifting lugs (4) are provided on the top surface of the mounting plate (1). The lifting lugs (4) are distributed between the multiple guide grooves (2). Counterweight components (5) are provided at the bottom of both ends of the mounting plate (1). The counterweight assembly (5) includes a mounting base (9) fixedly connected to the bottom of the mounting plate (1), and a counterweight column (8) extending vertically downward is detachably connected to the mounting base (9). The limiting component (3) includes a guide frame (6) and a limiting plate (7). The guide frame (6) is slidably engaged with the guide groove (2). The limiting plate (7) is fixed to the bottom of the guide frame (6). The top surface of the limiting plate (7) is fixedly connected to a limiting layer (10).

2. The fish hiding device in rice-fish farming according to claim 1, characterized in that: The mounting plate (1) is provided with multiple independent strip sponge layers on the bottom surface of the limiting plate (7), and the mounting plate (1) is a stainless steel plate with internal weight reduction holes.

3. The fish hiding device in rice-fish farming according to claim 1, characterized in that: The top surface of the lifting lug (4) and the mounting plate (1) are rotatably connected by a heavy-duty stainless steel swivel.

4. The fish hiding device in rice paddy fish farming according to claim 1, characterized in that: The guide frame (6) is generally arranged in an inverted "L" shape. Its vertical section has arc-shaped guide grooves on both sides that cooperate with the guide strips on the inner wall of the guide groove (2). The top horizontal section has rectangular extension support plates with threaded holes on both sides. The inner walls on both sides of the guide groove (2) are provided with guide strips.

5. A fish hiding device for rice-fish farming according to claim 1, characterized in that: The limiting plate (7) is an arc-shaped protruding stainless steel plate, and the limiting layer (10) is a EPDM rubber layer that matches the shape of the top surface of the limiting plate (7).

6. A fish hiding device for rice-fish farming according to claim 1, characterized in that: The mounting base (9) is a stainless steel spherical base with a threaded inner connecting seat protruding on its inner bottom surface. The bottom end of the counterweight column (8) is threadedly connected to the inner connecting seat, and an O-ring groove is provided at the threaded connection.

7. A fish hiding device for rice-fish farming according to claim 6, characterized in that: The counterweight column (8) is a hollow HDPE shell, which is filled with counterweight material. Both ends are sealed by end caps, and the top is pre-embedded with an internally threaded metal part that mates with the connecting seat inside the mounting base (9).

8. A fish hiding device for rice-fish farming according to claim 7, characterized in that: The counterweight material is concrete.

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